sync with sylpheed 0.7.0cvs27
[claws.git] / src / summaryview.c
index 58eeaa182f17aca2efc7618f12258796fcca7240..e7ff22604390bc255aa3f1f259bcb43958db27f9 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
- * Copyright (C) 1999-2001 Hiroyuki Yamamoto
+ * Copyright (C) 1999-2002 Hiroyuki Yamamoto
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -46,6 +46,7 @@
 #include <ctype.h>
 #include <unistd.h>
 #include <sys/stat.h>
+#include <regex.h>
 
 #include "intl.h"
 #include "main.h"
 #include "headerwindow.h"
 #include "sourcewindow.h"
 #include "prefs_common.h"
+#include "prefs_summary_column.h"
+#include "prefs_filter.h"
 #include "account.h"
 #include "compose.h"
 #include "utils.h"
 #include "gtkutils.h"
+#include "stock_pixmap.h"
 #include "filesel.h"
 #include "manage_window.h"
 #include "alertpanel.h"
 #include "folder.h"
 #include "colorlabel.h"
 #include "inc.h"
+#include "imap.h"
 #include "addressbook.h"
 #include "addr_compl.h"
 #include "scoring.h"
 #include "prefs_folder_item.h"
 #include "filtering.h"
-
-#include "pixmaps/dir-open.xpm"
-#include "pixmaps/mark.xpm"
-#include "pixmaps/deleted.xpm"
-#include "pixmaps/new.xpm"
-#include "pixmaps/unread.xpm"
-#include "pixmaps/replied.xpm"
-#include "pixmaps/forwarded.xpm"
-#include "pixmaps/clip.xpm"
-#include "pixmaps/ignorethread.xpm"
+#include "string_match.h"
 
 #define STATUSBAR_PUSH(mainwin, str) \
 { \
 
 #define SUMMARY_COL_MARK_WIDTH         10
 #define SUMMARY_COL_UNREAD_WIDTH       13
-#define SUMMARY_COL_MIME_WIDTH         10
+#define SUMMARY_COL_LOCKED_WIDTH       13
+#define SUMMARY_COL_MIME_WIDTH         11
 
 static GdkFont *boldfont;
 static GdkFont *smallfont;
@@ -116,9 +113,6 @@ static GtkStyle *small_style;
 static GtkStyle *small_marked_style;
 static GtkStyle *small_deleted_style;
 
-static GdkPixmap *folderxpm;
-static GdkBitmap *folderxpmmask;
-
 static GdkPixmap *markxpm;
 static GdkBitmap *markxpmmask;
 static GdkPixmap *deletedxpm;
@@ -134,9 +128,15 @@ static GdkPixmap *forwardedxpm;
 static GdkBitmap *forwardedxpmmask;
 static GdkPixmap *ignorethreadxpm;
 static GdkBitmap *ignorethreadxpmmask;
+static GdkPixmap *lockedxpm;
+static GdkBitmap *lockedxpmmask;
 
 static GdkPixmap *clipxpm;
 static GdkBitmap *clipxpmmask;
+static GdkPixmap *keyxpm;
+static GdkBitmap *keyxpmmask;
+static GdkPixmap *clipkeyxpm;
+static GdkBitmap *clipkeyxpmmask;
 
 static void summary_free_msginfo_func  (GtkCTree               *ctree,
                                         GtkCTreeNode           *node,
@@ -150,9 +150,18 @@ static void summary_write_cache_func       (GtkCTree               *ctree,
 
 static void summary_set_menu_sensitive (SummaryView            *summaryview);
 
+static void summary_set_hide_read_msgs_menu (SummaryView *summaryview,
+                                            guint action);
+
 static guint summary_get_msgnum                (SummaryView            *summaryview,
                                         GtkCTreeNode           *node);
 
+static GtkCTreeNode *summary_find_prev_msg
+                                       (SummaryView            *summaryview,
+                                        GtkCTreeNode           *current_node);
+static GtkCTreeNode *summary_find_next_msg
+                                       (SummaryView            *summaryview,
+                                        GtkCTreeNode           *current_node);
 static GtkCTreeNode *summary_find_prev_unread_msg
                                        (SummaryView            *summaryview,
                                         GtkCTreeNode           *current_node);
@@ -179,20 +188,25 @@ static void summary_update_status (SummaryView            *summaryview);
 
 /* display functions */
 static void summary_status_show                (SummaryView            *summaryview);
+static void summary_set_column_titles  (SummaryView            *summaryview);
 static void summary_set_ctree_from_list        (SummaryView            *summaryview,
                                         GSList                 *mlist);
-static void summary_set_header         (gchar                  *text[],
+static void summary_set_header         (SummaryView            *summaryview,
+                                        gchar                  *text[],
                                         MsgInfo                *msginfo);
 static void summary_display_msg                (SummaryView            *summaryview,
                                         GtkCTreeNode           *row,
                                         gboolean                new_window);
-static void summary_toggle_view                (SummaryView            *summaryview);
+
 static void summary_set_row_marks      (SummaryView            *summaryview,
                                         GtkCTreeNode           *row);
+static void summaryview_subject_filter_init (PrefsFolderItem    *prefs);
 
 /* message handling */
 static void summary_mark_row           (SummaryView            *summaryview,
                                         GtkCTreeNode           *row);
+static void summary_lock_row           (SummaryView            *summaryview,
+                                        GtkCTreeNode           *row);
 static void summary_mark_row_as_read   (SummaryView            *summaryview,
                                         GtkCTreeNode           *row);
 static void summary_mark_row_as_unread (SummaryView            *summaryview,
@@ -225,14 +239,20 @@ static void summary_execute_delete        (SummaryView            *summaryview);
 static void summary_execute_delete_func        (GtkCTree               *ctree,
                                         GtkCTreeNode           *node,
                                         gpointer                data);
-static void summary_ignore_thread(SummaryView *summaryview);
-static void summary_unignore_thread(SummaryView *summaryview);
+
+static void summary_thread_init                (SummaryView            *summaryview);
+static void summary_ignore_thread      (SummaryView  *summaryview);
+static void summary_unignore_thread    (SummaryView *summaryview);
 
 static void summary_unthread_for_exec          (SummaryView    *summaryview);
 static void summary_unthread_for_exec_func     (GtkCTree       *ctree,
                                                 GtkCTreeNode   *node,
                                                 gpointer        data);
 
+void summary_simplify_subject(SummaryView *summaryview, gchar * rexp,
+                             GSList * mlist);
+
+void summary_processing(SummaryView *summaryview, GSList * mlist);
 static void summary_filter_func                (GtkCTree               *ctree,
                                         GtkCTreeNode           *node,
                                         gpointer                data);
@@ -245,10 +265,13 @@ static void summary_colorlabel_menu_item_activate_item_cb
                                           gpointer      data);
 static void summary_colorlabel_menu_create(SummaryView *summaryview);
 
+static GtkWidget *summary_ctree_create (SummaryView    *summaryview);
+
+static void summary_toggle_view(SummaryView *summarview);
+
 /* callback functions */
-static void summary_toggle_pressed     (GtkWidget              *eventbox,
-                                        GdkEventButton         *event,
-                                        SummaryView            *summaryview);
+static void summary_toggle_view_cb     (GtkWidget      *widget,
+                                        gpointer       data);                                   
 static void summary_button_pressed     (GtkWidget              *ctree,
                                         GdkEventButton         *event,
                                         SummaryView            *summaryview);
@@ -277,6 +300,9 @@ static void summary_col_resized             (GtkCList               *clist,
 static void summary_reply_cb           (SummaryView            *summaryview,
                                         guint                   action,
                                         GtkWidget              *widget);
+static void summary_execute_cb         (SummaryView            *summaryview,
+                                        guint                   action,
+                                        GtkWidget              *widget);
 static void summary_show_all_header_cb (SummaryView            *summaryview,
                                         guint                   action,
                                         GtkWidget              *widget);
@@ -303,6 +329,10 @@ static void summary_from_clicked   (GtkWidget              *button,
                                         SummaryView            *summaryview);
 static void summary_subject_clicked    (GtkWidget              *button,
                                         SummaryView            *summaryview);
+static void summary_score_clicked      (GtkWidget              *button,
+                                        SummaryView            *summaryview);
+static void summary_locked_clicked     (GtkWidget              *button,
+                                        SummaryView            *summaryview);
 
 static void summary_start_drag         (GtkWidget        *widget, 
                                         int button,
@@ -344,14 +374,12 @@ static gint summary_cmp_by_subject        (GtkCList               *clist,
 static gint summary_cmp_by_score       (GtkCList               *clist,
                                         gconstpointer           ptr1,
                                         gconstpointer           ptr2);
+static gint summary_cmp_by_locked      (GtkCList *clist,
+                                        gconstpointer ptr1, gconstpointer ptr2);
 static gint summary_cmp_by_label       (GtkCList               *clist,
                                         gconstpointer           ptr1,
                                         gconstpointer           ptr2);
 
-#if MARK_ALL_READ
-static void summary_mark_all_read (SummaryView *summaryview);                                   
-#endif
-
 GtkTargetEntry summary_drag_types[1] =
 {
        {"text/plain", GTK_TARGET_SAME_APP, TARGET_DUMMY}
@@ -364,15 +392,14 @@ static GtkItemFactoryEntry summary_popup_entries[] =
        {N_("/Follow-up and reply to"), NULL, summary_reply_cb, COMPOSE_FOLLOWUP_AND_REPLY_TO, NULL},
        {N_("/Reply to a_ll"),          NULL, summary_reply_cb, COMPOSE_REPLY_TO_ALL, NULL},
        {N_("/_Forward"),               NULL, summary_reply_cb, COMPOSE_FORWARD, NULL},
-       {N_("/Forward as a_ttachment"),
-                                       NULL, summary_reply_cb, COMPOSE_FORWARD_AS_ATTACH, NULL},
+       {N_("/Bounce"),                 NULL, summary_reply_cb, COMPOSE_BOUNCE, NULL},
        {N_("/---"),                    NULL, NULL,             0, "<Separator>"},
        {N_("/Re-_edit"),               NULL, summary_reedit,   0, NULL},
        {N_("/---"),                    NULL, NULL,             0, "<Separator>"},
        {N_("/M_ove..."),               NULL, summary_move_to,  0, NULL},
        {N_("/_Copy..."),               NULL, summary_copy_to,  0, NULL},
        {N_("/_Delete"),                NULL, summary_delete,   0, NULL},
-       {N_("/E_xecute"),               NULL, summary_execute,  0, NULL},
+       {N_("/E_xecute"),               NULL, summary_execute_cb,       0, NULL},
        {N_("/---"),                    NULL, NULL,             0, "<Separator>"},
        {N_("/_Mark"),                  NULL, NULL,             0, "<Branch>"},
        {N_("/_Mark/_Mark"),            NULL, summary_mark,     0, NULL},
@@ -386,12 +413,14 @@ static GtkItemFactoryEntry summary_popup_entries[] =
        {N_("/Color la_bel"),           NULL, NULL,             0, NULL},
 
        {N_("/---"),                    NULL, NULL,             0, "<Separator>"},
-       {N_("/Add sender to address _book"),
-                                       NULL, summary_add_address_cb,           0, NULL},
+       {N_("/Add sender to address boo_k"),
+                                       NULL, summary_add_address_cb, 0, NULL},
        {N_("/---"),                    NULL, NULL,             0, "<Separator>"},
-       {N_("/Open in new _window"),    NULL, summary_open_msg, 0, NULL},
-       {N_("/View so_urce"),           NULL, summary_view_source, 0, NULL},
-       {N_("/Show all _header"),       NULL, summary_show_all_header_cb, 0, NULL},
+       {N_("/_View"),                  NULL, NULL,             0, "<Branch>"},
+       {N_("/_View/Open in new _window"),
+                                       NULL, summary_open_msg, 0, NULL},
+       {N_("/_View/_Source"),          NULL, summary_view_source, 0, NULL},
+       {N_("/_View/All _header"),      NULL, summary_show_all_header_cb, 0, NULL},
        {N_("/---"),                    NULL, NULL,             0, "<Separator>"},
        {N_("/_Save as..."),            NULL, summary_save_as,  0, NULL},
        {N_("/_Print..."),              NULL, summary_print,    0, NULL},
@@ -399,10 +428,22 @@ static GtkItemFactoryEntry summary_popup_entries[] =
        {N_("/Select _all"),            NULL, summary_select_all, 0, NULL}
 };
 
+static const gchar *const col_label[N_SUMMARY_COLS] = {
+       N_("M"),        /* S_COL_MARK    */
+       N_("U"),        /* S_COL_UNREAD  */
+       "",             /* S_COL_MIME    */
+       N_("Subject"),  /* S_COL_SUBJECT */
+       N_("From"),     /* S_COL_FROM    */
+       N_("Date"),     /* S_COL_DATE    */
+       N_("Size"),     /* S_COL_SIZE    */
+       N_("No."),      /* S_COL_NUMBER  */
+       N_("Score"),    /* S_COL_SCORE   */
+       N_("L")         /* S_COL_LOCKED  */
+};
+
 SummaryView *summary_create(void)
 {
        SummaryView *summaryview;
-       gchar *titles[N_SUMMARY_COLS] = {_("M"), _("U")};
        GtkWidget *vbox;
        GtkWidget *scrolledwin;
        GtkWidget *ctree;
@@ -410,12 +451,11 @@ SummaryView *summary_create(void)
        GtkWidget *statlabel_folder;
        GtkWidget *statlabel_select;
        GtkWidget *statlabel_msgs;
-       GtkWidget *toggle_eventbox;
-       GtkWidget *toggle_arrow;
+       GtkWidget *toggle_view_btn;
+       GtkWidget *toggle_view_arrow;
        GtkWidget *popupmenu;
        GtkItemFactory *popupfactory;
        gint n_entries;
-       gint i;
 
        debug_print(_("Creating summary view...\n"));
        summaryview = g_new0(SummaryView, 1);
@@ -431,92 +471,13 @@ SummaryView *summary_create(void)
                             prefs_common.summaryview_width,
                             prefs_common.summaryview_height);
 
-       if (prefs_common.trans_hdr) {
-               titles[S_COL_NUMBER]  = _("No.");
-               titles[S_COL_DATE]    = _("Date");
-               titles[S_COL_FROM]    = _("From");
-               titles[S_COL_SUBJECT] = _("Subject");
-       } else {
-               titles[S_COL_NUMBER]  = "No.";
-               titles[S_COL_DATE]    = "Date";
-               titles[S_COL_FROM]    = "From";
-               titles[S_COL_SUBJECT] = "Subject";
-       }
-       titles[S_COL_SIZE]  = _("Size");
-       titles[S_COL_SCORE] = _("Score");
+       ctree = summary_ctree_create(summaryview);
 
-       ctree = gtk_sctree_new_with_titles(N_SUMMARY_COLS, S_COL_SUBJECT, titles);
        gtk_scrolled_window_set_hadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
                                            GTK_CLIST(ctree)->hadjustment);
        gtk_scrolled_window_set_vadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
                                            GTK_CLIST(ctree)->vadjustment);
        gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
-       gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_EXTENDED);
-       gtk_clist_set_column_justification(GTK_CLIST(ctree), S_COL_MARK,
-                                          GTK_JUSTIFY_CENTER);
-       gtk_clist_set_column_justification(GTK_CLIST(ctree), S_COL_UNREAD,
-                                          GTK_JUSTIFY_CENTER);
-       gtk_clist_set_column_justification(GTK_CLIST(ctree), S_COL_MIME,
-                                          GTK_JUSTIFY_CENTER);
-       gtk_clist_set_column_justification(GTK_CLIST(ctree), S_COL_NUMBER,
-                                          GTK_JUSTIFY_RIGHT);
-       gtk_clist_set_column_justification(GTK_CLIST(ctree), S_COL_SCORE,
-                                          GTK_JUSTIFY_RIGHT);
-       gtk_clist_set_column_justification(GTK_CLIST(ctree), S_COL_SIZE,
-                                          GTK_JUSTIFY_RIGHT);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_MARK,
-                                  SUMMARY_COL_MARK_WIDTH);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_UNREAD,
-                                  SUMMARY_COL_UNREAD_WIDTH);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_MIME,
-                                  SUMMARY_COL_MIME_WIDTH);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_NUMBER,
-                                  prefs_common.summary_col_number);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_SCORE,
-                                  prefs_common.summary_col_score);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_SIZE,
-                                  prefs_common.summary_col_size);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_DATE,
-                                  prefs_common.summary_col_date);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_FROM,
-                                  prefs_common.summary_col_from);
-       gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_SUBJECT,
-                                  prefs_common.summary_col_subject);
-       gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
-       gtk_ctree_set_expander_style(GTK_CTREE(ctree),
-                                    GTK_CTREE_EXPANDER_SQUARE);
-#if 0
-       gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
-       gtk_ctree_set_expander_style(GTK_CTREE(ctree),
-                                    GTK_CTREE_EXPANDER_TRIANGLE);
-#endif
-       gtk_ctree_set_indent(GTK_CTREE(ctree), 18);
-       gtk_object_set_user_data(GTK_OBJECT(ctree), summaryview);
-
-       /* don't let title buttons take key focus */
-       for (i = 0; i < N_SUMMARY_COLS; i++)
-               GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
-                                      GTK_CAN_FOCUS);
-
-       /* connect signal to the buttons for sorting */
-#define CLIST_BUTTON_SIGNAL_CONNECT(col, func) \
-       gtk_signal_connect \
-               (GTK_OBJECT(GTK_CLIST(ctree)->column[col].button), \
-                "clicked", \
-                GTK_SIGNAL_FUNC(func), \
-                summaryview)
-
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_MARK   , summary_mark_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_UNREAD , summary_unread_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_MIME   , summary_mime_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_NUMBER , summary_num_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_SCORE  , summary_score_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_SIZE   , summary_size_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_DATE   , summary_date_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_FROM   , summary_from_clicked);
-       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_SUBJECT, summary_subject_clicked);
-
-#undef CLIST_BUTTON_SIGNAL_CONNECT
 
        /* create status label */
        hbox = gtk_hbox_new(FALSE, 0);
@@ -527,11 +488,14 @@ SummaryView *summary_create(void)
        statlabel_select = gtk_label_new("");
        gtk_box_pack_start(GTK_BOX(hbox), statlabel_select, FALSE, FALSE, 16);
 
-       /* toggle view button */
-       toggle_eventbox = gtk_event_box_new();
-       gtk_box_pack_end(GTK_BOX(hbox), toggle_eventbox, FALSE, FALSE, 4);
-       toggle_arrow = gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
-       gtk_container_add(GTK_CONTAINER(toggle_eventbox), toggle_arrow);
+       /* toggle view buttons */
+       toggle_view_btn = gtk_button_new();
+       gtk_box_pack_end(GTK_BOX(hbox), toggle_view_btn, FALSE, FALSE, 0);
+       gtk_button_set_relief(GTK_BUTTON(toggle_view_btn), GTK_RELIEF_NONE);
+       toggle_view_arrow=gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
+       gtk_container_add(GTK_CONTAINER(toggle_view_btn), toggle_view_arrow);
+       gtk_signal_connect(GTK_OBJECT(toggle_view_btn), "clicked",
+                               GTK_SIGNAL_FUNC(summary_toggle_view_cb), summaryview);
 
        statlabel_msgs = gtk_label_new("");
        gtk_box_pack_end(GTK_BOX(hbox), statlabel_msgs, FALSE, FALSE, 4);
@@ -543,40 +507,6 @@ SummaryView *summary_create(void)
                                      "<SummaryView>", &popupfactory,
                                      summaryview);
 
-       /* connect signals */
-       gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
-                          GTK_SIGNAL_FUNC(summary_selected), summaryview);
-       gtk_signal_connect(GTK_OBJECT(ctree), "button_press_event",
-                          GTK_SIGNAL_FUNC(summary_button_pressed),
-                          summaryview);
-       gtk_signal_connect(GTK_OBJECT(ctree), "button_release_event",
-                          GTK_SIGNAL_FUNC(summary_button_released),
-                          summaryview);
-       gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
-                          GTK_SIGNAL_FUNC(summary_key_pressed), summaryview);
-       gtk_signal_connect(GTK_OBJECT(ctree), "resize_column",
-                          GTK_SIGNAL_FUNC(summary_col_resized), summaryview);
-        gtk_signal_connect(GTK_OBJECT(ctree), "open_row",
-                          GTK_SIGNAL_FUNC(summary_open_row), summaryview);
-
-       gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_expand",
-                                GTK_SIGNAL_FUNC(summary_tree_expanded),
-                                summaryview);
-       gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_collapse",
-                                GTK_SIGNAL_FUNC(summary_tree_collapsed),
-                                summaryview);
-
-       gtk_signal_connect(GTK_OBJECT(ctree), "start_drag",
-                          GTK_SIGNAL_FUNC(summary_start_drag),
-                          summaryview);
-       gtk_signal_connect(GTK_OBJECT(ctree), "drag_data_get",
-                          GTK_SIGNAL_FUNC(summary_drag_data_get),
-                          summaryview);
-
-       gtk_signal_connect(GTK_OBJECT(toggle_eventbox), "button_press_event",
-                          GTK_SIGNAL_FUNC(summary_toggle_pressed),
-                          summaryview);
-
        summaryview->vbox = vbox;
        summaryview->scrolledwin = scrolledwin;
        summaryview->ctree = ctree;
@@ -584,16 +514,15 @@ SummaryView *summary_create(void)
        summaryview->statlabel_folder = statlabel_folder;
        summaryview->statlabel_select = statlabel_select;
        summaryview->statlabel_msgs = statlabel_msgs;
-       summaryview->toggle_eventbox = toggle_eventbox;
-       summaryview->toggle_arrow = toggle_arrow;
+       summaryview->toggle_view_btn = toggle_view_btn;
+       summaryview->toggle_view_arrow = toggle_view_arrow;
        summaryview->popupmenu = popupmenu;
        summaryview->popupfactory = popupfactory;
        summaryview->msg_is_toggled_on = TRUE;
+       summaryview->lock_count = 0;
        summaryview->sort_mode = SORT_BY_NONE;
        summaryview->sort_type = GTK_SORT_ASCENDING;
 
-       summary_change_display_item(summaryview);
-
        gtk_widget_show_all(vbox);
 
        return summaryview;
@@ -604,25 +533,28 @@ void summary_init(SummaryView *summaryview)
        GtkStyle *style;
        GtkWidget *pixmap;
 
-       PIXMAP_CREATE(summaryview->ctree, markxpm, markxpmmask, mark_xpm);
-       PIXMAP_CREATE(summaryview->ctree, deletedxpm, deletedxpmmask,
-                     deleted_xpm);
-       PIXMAP_CREATE(summaryview->ctree, newxpm, newxpmmask, new_xpm);
-       PIXMAP_CREATE(summaryview->ctree, unreadxpm, unreadxpmmask, unread_xpm);
-       PIXMAP_CREATE(summaryview->ctree, repliedxpm, repliedxpmmask,
-                     replied_xpm);
-       PIXMAP_CREATE(summaryview->ctree, forwardedxpm, forwardedxpmmask,
-                     forwarded_xpm);
-       PIXMAP_CREATE(summaryview->ctree, ignorethreadxpm, ignorethreadxpmmask,
-                     ignorethread_xpm);
-       PIXMAP_CREATE(summaryview->ctree, clipxpm, clipxpmmask, clip_xpm);
-       PIXMAP_CREATE(summaryview->hbox, folderxpm, folderxpmmask,
-                     dir_open_xpm);
-
-       pixmap = gtk_pixmap_new(clipxpm, clipxpmmask);
-       gtk_clist_set_column_widget(GTK_CLIST(summaryview->ctree),
-                                   S_COL_MIME, pixmap);
-       gtk_widget_show(pixmap);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_MARK,
+                        &markxpm, &markxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_DELETED,
+                        &deletedxpm, &deletedxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_NEW,
+                        &newxpm, &newxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_UNREAD,
+                        &unreadxpm, &unreadxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_REPLIED,
+                        &repliedxpm, &repliedxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_FORWARDED,
+                        &forwardedxpm, &forwardedxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_CLIP,
+                        &clipxpm, &clipxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_LOCKED,
+                        &lockedxpm, &lockedxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_IGNORETHREAD,
+                        &ignorethreadxpm, &ignorethreadxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_CLIP_KEY,
+                        &clipkeyxpm, &clipkeyxpmmask);
+       stock_pixmap_gdk(summaryview->ctree, STOCK_PIXMAP_KEY,
+                        &keyxpm, &keyxpmmask);
 
        if (!small_style) {
                small_style = gtk_style_copy
@@ -658,12 +590,13 @@ void summary_init(SummaryView *summaryview)
        gtk_widget_set_style(summaryview->statlabel_select, style);
        gtk_widget_set_style(summaryview->statlabel_msgs, style);
 
-       pixmap = gtk_pixmap_new(folderxpm, folderxpmmask);
+       pixmap = stock_pixmap_widget(summaryview->hbox, STOCK_PIXMAP_DIR_OPEN);
        gtk_box_pack_start(GTK_BOX(summaryview->hbox), pixmap, FALSE, FALSE, 4);
        gtk_box_reorder_child(GTK_BOX(summaryview->hbox), pixmap, 0);
        gtk_widget_show(pixmap);
 
        summary_clear_list(summaryview);
+       summary_set_column_titles(summaryview);
        summary_colorlabel_menu_create(summaryview);
        summary_set_menu_sensitive(summaryview);
 
@@ -747,11 +680,10 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
        gint sort_type;
         static gboolean locked = FALSE;
 
-       if (locked)
-               return FALSE;
+       if (summary_is_locked(summaryview)) return FALSE;
 
        inc_lock();
-       locked = TRUE;
+       summary_lock(summaryview);
 
        STATUSBAR_POP(summaryview->mainwin);
 
@@ -778,23 +710,33 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
                else if (G_ALERTALTERNATE == val)
                        summary_write_cache(summaryview);
                else {
-                       locked = FALSE;
+                       summary_unlock(summaryview);
                        inc_unlock();
-                        return FALSE;
+                       return FALSE;
                }
                folder_update_op_count();
-       }
-       else if (!summaryview->filtering_happened) {
-               summary_write_cache(summaryview);
-       }
-
-       summaryview->filtering_happened = FALSE;
-
+       } else {
+               /* 
+                * CLAWS: summary_show() is responsible for updating the caches. 
+                * after filtering inc.c::inc_finished() forces the update of
+                * the cache by indirectly calling summary_show() (by re-selecting
+                * the currently selected mail folder).  
+                * this collides with the new filtering system that may have set 
+                * any message flag before calling summary_show(). 
+                * we can prevent this cache-write by checking the opened member
+                * of the folderview. if this is NULL, the folderview forced
+                * an update of the summary view.
+                */
+               if (summaryview->folderview->opened) 
+                       summary_write_cache(summaryview);
+       }       
+        
        summaryview->folderview->opened = selected_node;
 
        gtk_clist_freeze(GTK_CLIST(ctree));
 
        summary_clear_list(summaryview);
+       summary_set_column_titles(summaryview);
        summary_set_menu_sensitive(summaryview);
        if (!is_refresh)
                messageview_clear(summaryview->messageview);
@@ -806,12 +748,13 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
              change_dir(buf) < 0))) {
                g_free(buf);
                debug_print(_("empty folder\n\n"));
+               summary_set_hide_read_msgs_menu(summaryview, FALSE);
                if (is_refresh)
                        messageview_clear(summaryview->messageview);
                summary_clear_all(summaryview);
                summaryview->folder_item = item;
                gtk_clist_thaw(GTK_CLIST(ctree));
-               locked = FALSE;
+               summary_unlock(summaryview);
                inc_unlock();
                return TRUE;
        }
@@ -830,6 +773,8 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
 
        mlist = item->folder->get_msg_list(item->folder, item, !update_cache);
 
+       summary_processing(summaryview, mlist);
+
        for(cur = mlist ; cur != NULL ; cur = g_slist_next(cur)) {
                MsgInfo * msginfo = (MsgInfo *) cur->data;
 
@@ -842,6 +787,31 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
        }
 
        summaryview->killed_messages = NULL;
+
+       if (summaryview->folder_item->hide_read_msgs) {
+               GSList *not_killed;
+               gint kill_score;
+               
+               summary_set_hide_read_msgs_menu(summaryview, TRUE);
+               not_killed = NULL;
+               for(cur = mlist ; cur != NULL ; cur = g_slist_next(cur)) {
+                       MsgInfo * msginfo = (MsgInfo *) cur->data;
+                       
+                       if ((MSG_IS_UNREAD(msginfo->flags)
+                            || MSG_IS_MARKED(msginfo->flags)
+                            || MSG_IS_LOCKED(msginfo->flags))
+                            && !MSG_IS_IGNORE_THREAD(msginfo->flags))
+                           not_killed = g_slist_append(not_killed, msginfo);
+                       else
+                               summaryview->killed_messages = 
+                                       g_slist_append(summaryview->killed_messages, msginfo);
+               }
+               g_slist_free(mlist);
+               mlist = not_killed;
+       } else {
+               summary_set_hide_read_msgs_menu(summaryview, FALSE);
+       }
+
        if ((global_scoring || item->prefs->scoring) &&
            (item->folder->type == F_NEWS)) {
                GSList *not_killed;
@@ -905,8 +875,8 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
                           message, but do not display it */
                        node = summary_find_next_unread_msg(summaryview, NULL);
                        if (node == NULL && GTK_CLIST(ctree)->row_list != NULL)
-                               node = GTK_CTREE_NODE
-                                       (GTK_CLIST(ctree)->row_list_end);
+                               node = gtk_ctree_node_nth
+                                       (ctree, GTK_CLIST(ctree)->rows - 1);
                        summary_select_node(summaryview, node, FALSE);
                }
        } else {
@@ -917,23 +887,28 @@ gboolean summary_show(SummaryView *summaryview, FolderItem *item,
                else
                        node = summary_find_next_unread_msg(summaryview, NULL);
 
-               if (node == NULL && GTK_CLIST(ctree)->row_list != NULL)
-                       node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list_end);
-               summary_select_node(summaryview, node,
-                                   prefs_common.open_unread_on_enter);
+               if (node == NULL && GTK_CLIST(ctree)->row_list != NULL) {
+                       /* Get the last visible node on screen */
+                       /* FIXME: huh, what happens if node is null? that allowed?? */
+                       node = gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->rows - 1);
+               }       
+               if (prefs_common.open_unread_on_enter) {
+                       summary_unlock(summaryview);
+                       summary_select_node(summaryview, node, TRUE);
+                       summary_lock(summaryview);
+               } else
+                       summary_select_node(summaryview, node, FALSE);
        }
 
        summary_status_show(summaryview);
-
        summary_set_menu_sensitive(summaryview);
-
        main_window_set_toolbar_sensitive(summaryview->mainwin);
 
        debug_print("\n");
        STATUSBAR_PUSH(summaryview->mainwin, _("Done."));
 
        main_window_cursor_normal(summaryview->mainwin);
-       locked = FALSE;
+       summary_unlock(summaryview);
        inc_unlock();
 
        return TRUE;
@@ -986,8 +961,13 @@ void summary_clear_list(SummaryView *summaryview)
        summaryview->sort_type = GTK_SORT_ASCENDING;
 
        gtk_clist_clear(clist);
-       optimal_width = gtk_clist_optimal_column_width(clist, S_COL_SUBJECT);
-       gtk_clist_set_column_width(clist, S_COL_SUBJECT, optimal_width);
+       if (summaryview->col_pos[S_COL_SUBJECT] == N_SUMMARY_COLS - 1) {
+               optimal_width = gtk_clist_optimal_column_width
+                       (clist, summaryview->col_pos[S_COL_SUBJECT]);
+               gtk_clist_set_column_width
+                       (clist, summaryview->col_pos[S_COL_SUBJECT],
+                        optimal_width);
+       }
 
        gtk_clist_thaw(clist);
 }
@@ -1000,6 +980,22 @@ void summary_clear_all(SummaryView *summaryview)
        summary_status_show(summaryview);
 }
 
+void summary_lock(SummaryView *summaryview)
+{
+       summaryview->lock_count++;
+}
+
+void summary_unlock(SummaryView *summaryview)
+{
+       if (summaryview->lock_count)
+               summaryview->lock_count--;
+}
+
+gboolean summary_is_locked(SummaryView *summaryview)
+{
+       return summaryview->lock_count > 0;
+}
+
 SummarySelection summary_get_selection_type(SummaryView *summaryview)
 {
        GtkCList *clist = GTK_CLIST(summaryview->ctree);
@@ -1040,8 +1036,7 @@ static void summary_set_menu_sensitive(SummaryView *summaryview)
        if (summaryview->folder_item->folder->type != F_NEWS) {
                menu_set_sensitive(ifactory, "/Move...", TRUE);
                menu_set_sensitive(ifactory, "/Copy...", TRUE);
-               if (summaryview->folder_item->stype != F_TRASH)
-                       menu_set_sensitive(ifactory, "/Delete", TRUE);
+               menu_set_sensitive(ifactory, "/Delete", TRUE);
        }
 
        menu_set_sensitive(ifactory, "/Execute", TRUE);
@@ -1063,16 +1058,17 @@ static void summary_set_menu_sensitive(SummaryView *summaryview)
        menu_set_sensitive(ifactory, "/Reply to sender",          sens);
        menu_set_sensitive(ifactory, "/Reply to all",             sens);
        menu_set_sensitive(ifactory, "/Forward",                  TRUE);
-       menu_set_sensitive(ifactory, "/Forward as attachment",    TRUE);
+       menu_set_sensitive(ifactory, "/Bounce",                   TRUE);
 
        menu_set_sensitive(ifactory, "/Add sender to address book", sens);
 
-       menu_set_sensitive(ifactory, "/Open in new window", sens);
-       menu_set_sensitive(ifactory, "/View source", sens);
-       menu_set_sensitive(ifactory, "/Show all header", sens);
-       if ((summaryview->folder_item->stype == F_DRAFT) ||
-           (summaryview->folder_item->stype == F_OUTBOX) ||
-           (summaryview->folder_item->stype == F_QUEUE))
+       menu_set_sensitive(ifactory, "/View", sens);
+       menu_set_sensitive(ifactory, "/View/Open in new window", sens);
+       menu_set_sensitive(ifactory, "/View/Source", sens);
+       menu_set_sensitive(ifactory, "/View/All header", sens);
+       if (summaryview->folder_item->stype == F_OUTBOX ||
+           summaryview->folder_item->stype == F_DRAFT  ||
+           summaryview->folder_item->stype == F_QUEUE)
                menu_set_sensitive(ifactory, "/Re-edit", sens);
 
        menu_set_sensitive(ifactory, "/Save as...", sens);
@@ -1098,10 +1094,23 @@ void summary_select_prev_unread(SummaryView *summaryview)
        if (!node) {
                AlertValue val;
 
-               val = alertpanel(_("No more unread messages"),
-                                _("No unread message found. "
-                                  "Search from the end?"),
-                                _("Yes"), _("No"), NULL);
+               switch (prefs_common.next_unread_msg_dialog) {
+                       case NEXTUNREADMSGDIALOG_ALWAYS:
+                               val = alertpanel(_("No more unread messages"),
+                                                _("No unread message found. "
+                                                  "Search from the end?"),
+                                                _("Yes"), _("No"), NULL);
+                               break;
+                       case NEXTUNREADMSGDIALOG_ASSUME_YES:
+                               val = G_ALERTDEFAULT;
+                               break;
+                       case NEXTUNREADMSGDIALOG_ASSUME_NO:
+                               val = !G_ALERTDEFAULT;
+                               break;
+                       default:
+                               debug_print(
+                                       _("Internal error: unexpected value for prefs_common.next_unread_msg_dialog\n"));
+               }
                if (val != G_ALERTDEFAULT) return;
                node = summary_find_prev_unread_msg(summaryview, NULL);
        }
@@ -1120,25 +1129,30 @@ void summary_select_prev_unread(SummaryView *summaryview)
 
 void summary_select_next_unread(SummaryView *summaryview)
 {
-       GtkCTreeNode *node;
+       GtkCTreeNode *node = summaryview->selected;
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
 
-       node = summary_find_next_unread_msg(summaryview, summaryview->selected);
-
-       if (node) {
-               gtkut_ctree_expand_parent_all(ctree, node);
-               gtk_sctree_unselect_all(GTK_SCTREE(ctree));
-               gtk_sctree_select(GTK_SCTREE(ctree), node);
-               if (summaryview->displayed == node)
-                       summaryview->displayed = NULL;
-               summary_display_msg(summaryview, node, FALSE);
-       } else {
+       while ((node = summary_find_next_unread_msg(summaryview, node)) == NULL) {
                AlertValue val;
 
-               val = alertpanel(_("No more unread messages"),
-                                _("No unread message found. "
-                                  "Go to next folder?"),
-                                _("Yes"), _("No"), NULL);
+               switch (prefs_common.next_unread_msg_dialog) {
+                       case NEXTUNREADMSGDIALOG_ALWAYS:
+                               val = alertpanel(_("No more unread messages"),
+                                                _("No unread message found. "
+                                                  "Go to next folder?"),
+                                                _("Yes"), _("Search again"), _("No"));
+                               break;
+                       case NEXTUNREADMSGDIALOG_ASSUME_YES:
+                               val = G_ALERTDEFAULT;
+                               break;
+                       case NEXTUNREADMSGDIALOG_ASSUME_NO:
+                               val = !G_ALERTDEFAULT;
+                               break;
+                       default:
+                               debug_print(
+                                       _("Internal error: unexpected value for prefs_common.next_unread_msg_dialog\n"));
+               }
+
                if (val == G_ALERTDEFAULT) {
                        if (gtk_signal_n_emissions_by_name
                                (GTK_OBJECT(ctree), "key_press_event") > 0)
@@ -1146,7 +1160,20 @@ void summary_select_next_unread(SummaryView *summaryview)
                                                (GTK_OBJECT(ctree),
                                                 "key_press_event");
                        folderview_select_next_unread(summaryview->folderview);
-               }
+                       return;
+               } else if (val == G_ALERTALTERNATE)
+                       node = NULL;
+               else
+                       return;
+       }
+
+       if (node) {
+               gtkut_ctree_expand_parent_all(ctree, node);
+               gtk_sctree_unselect_all(GTK_SCTREE(ctree));
+               gtk_sctree_select(GTK_SCTREE(ctree), node);
+               if (summaryview->displayed == node)
+                       summaryview->displayed = NULL;
+               summary_display_msg(summaryview, node, FALSE);
        }
 }
 
@@ -1315,6 +1342,48 @@ static guint summary_get_msgnum(SummaryView *summaryview, GtkCTreeNode *node)
        return msginfo->msgnum;
 }
 
+static GtkCTreeNode *summary_find_prev_msg(SummaryView *summaryview,
+                                          GtkCTreeNode *current_node)
+{
+       GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
+       GtkCTreeNode *node;
+       MsgInfo *msginfo;
+
+       if (current_node)
+               node = current_node;
+       else
+               node = gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->rows - 1);
+
+       for (; node != NULL; node = GTK_CTREE_NODE_PREV(node)) {
+               msginfo = gtk_ctree_node_get_row_data(ctree, node);
+               if (!MSG_IS_DELETED(msginfo->flags))
+                       break;
+       }
+
+       return node;
+}
+
+static GtkCTreeNode *summary_find_next_msg(SummaryView *summaryview,
+                                          GtkCTreeNode *current_node)
+{
+       GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
+       GtkCTreeNode *node;
+       MsgInfo *msginfo;
+
+       if (current_node)
+               node = current_node;
+       else
+               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
+
+       for (; node != NULL; node = gtkut_ctree_node_next(ctree, node)) {
+               msginfo = gtk_ctree_node_get_row_data(ctree, node);
+               if (!MSG_IS_DELETED(msginfo->flags))
+                       break;
+       }
+
+       return node;
+}
+
 static GtkCTreeNode *summary_find_prev_unread_msg(SummaryView *summaryview,
                                                  GtkCTreeNode *current_node)
 {
@@ -1325,7 +1394,7 @@ static GtkCTreeNode *summary_find_prev_unread_msg(SummaryView *summaryview,
        if (current_node)
                node = current_node;
        else
-               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list_end);
+               node = gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->rows - 1);
 
        for (; node != NULL; node = GTK_CTREE_NODE_PREV(node)) {
                msginfo = gtk_ctree_node_get_row_data(ctree, node);
@@ -1365,7 +1434,7 @@ static GtkCTreeNode *summary_find_prev_marked_msg(SummaryView *summaryview,
        if (current_node)
                node = GTK_CTREE_NODE_PREV(current_node);
        else
-               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list_end);
+               node = gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->rows - 1);
 
        for (; node != NULL; node = GTK_CTREE_NODE_PREV(node)) {
                msginfo = gtk_ctree_node_get_row_data(ctree, node);
@@ -1405,7 +1474,7 @@ static GtkCTreeNode *summary_find_prev_labeled_msg(SummaryView *summaryview,
        if (current_node)
                node = GTK_CTREE_NODE_PREV(current_node);
        else
-               node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list_end);
+               node = gtk_ctree_node_nth(ctree, GTK_CLIST(ctree)->rows - 1);
 
        for (; node != NULL; node = GTK_CTREE_NODE_PREV(node)) {
                msginfo = gtk_ctree_node_get_row_data(ctree, node);
@@ -1604,6 +1673,7 @@ static void summary_status_show(SummaryView *summaryview)
        gchar *del, *mv, *cp;
        gchar *sel;
        gchar *spc;
+       gchar *itstr;
        GList *rowlist, *cur;
        guint n_selected = 0;
        off_t sel_size = 0;
@@ -1654,19 +1724,26 @@ static void summary_status_show(SummaryView *summaryview)
        else
                spc = "";
 
-       if (n_selected)
+       if (n_selected) {
                sel = g_strdup_printf(" (%s)", to_human_readable(sel_size));
-       else
+               if (n_selected == 1)
+                       itstr = g_strdup(_(" item selected"));
+               else
+                       itstr = g_strdup(_(" items selected"));
+       } else {
                sel = g_strdup("");
+               itstr = g_strdup("");
+       }
+               
        str = g_strconcat(n_selected ? itos(n_selected) : "",
-                         n_selected ? _(" item(s) selected") : "",
-                         sel, spc, del, mv, cp, NULL);
+                                       itstr, sel, spc, del, mv, cp, NULL);
        gtk_label_set(GTK_LABEL(summaryview->statlabel_select), str);
        g_free(str);
        g_free(sel);
        g_free(del);
        g_free(mv);
        g_free(cp);
+       g_free(itstr);
 
        if (summaryview->folder_item &&
            FOLDER_IS_LOCAL(summaryview->folder_item->folder)) {
@@ -1691,6 +1768,105 @@ static void summary_status_show(SummaryView *summaryview)
                                  summaryview->messages);
 }
 
+static void summary_set_column_titles(SummaryView *summaryview)
+{
+       GtkCList *clist = GTK_CLIST(summaryview->ctree);
+       GtkWidget *hbox;
+       GtkWidget *label;
+       GtkWidget *arrow;
+       gint pos;
+       const gchar *title;
+       SummaryColumnType type;
+       gboolean single_char;
+       GtkJustification justify;
+
+       static SummarySortType sort_by[N_SUMMARY_COLS] = {
+               SORT_BY_MARK,
+               SORT_BY_UNREAD,
+               SORT_BY_MIME,
+               SORT_BY_SUBJECT,
+               SORT_BY_FROM,
+               SORT_BY_DATE,
+               SORT_BY_SIZE,
+               SORT_BY_NUMBER,
+               SORT_BY_SCORE,
+               SORT_BY_LOCKED
+       };
+
+       for (pos = 0; pos < N_SUMMARY_COLS; pos++) {
+               type = summaryview->col_state[pos].type;
+
+               /* CLAWS: mime and unread are single char headers */
+               single_char = (type == S_COL_MIME || type == S_COL_UNREAD);
+               justify = (type == S_COL_NUMBER || type == S_COL_SIZE)
+                       ? GTK_JUSTIFY_RIGHT : GTK_JUSTIFY_LEFT;
+
+               switch (type) {
+               case S_COL_SUBJECT:
+               case S_COL_FROM:
+               case S_COL_DATE:
+               case S_COL_NUMBER:
+                       if (prefs_common.trans_hdr)
+                               title = gettext(col_label[type]);
+                       else
+                               title = col_label[type];
+                       break;
+               /* CLAWS: dummies for mark and locked headers */        
+               case S_COL_MARK:        
+               case S_COL_LOCKED:
+                       title = "";
+                       break;
+               default:
+                       title = gettext(col_label[type]);
+               }
+
+               if (type == S_COL_MIME) {
+                       label = gtk_pixmap_new(clipxpm, clipxpmmask);
+                       gtk_widget_show(label);
+                       gtk_clist_set_column_widget(clist, pos, label);
+                       continue;
+               }
+               if (single_char) {
+                       gtk_clist_set_column_title(clist, pos, title);
+                       continue;
+               }
+
+               /* CLAWS: changed so that locked and mark headers
+                * show a pixmap instead of single character */
+               hbox  = gtk_hbox_new(FALSE, 4);
+               
+               if (type == S_COL_LOCKED)
+                       label = gtk_pixmap_new(lockedxpm, lockedxpmmask);
+               else if (type == S_COL_MARK) 
+                       label = gtk_pixmap_new(markxpm, markxpmmask);
+               else 
+                       label = gtk_label_new(title);
+               
+               if (justify == GTK_JUSTIFY_RIGHT)
+                       gtk_box_pack_end(GTK_BOX(hbox), label,
+                                        FALSE, FALSE, 0);
+               else
+                       gtk_box_pack_start(GTK_BOX(hbox), label,
+                                          FALSE, FALSE, 0);
+
+               if (summaryview->sort_mode == sort_by[type]) {
+                       arrow = gtk_arrow_new
+                               (summaryview->sort_type == GTK_SORT_ASCENDING
+                                ? GTK_ARROW_DOWN : GTK_ARROW_UP,
+                                GTK_SHADOW_IN);
+                       if (justify == GTK_JUSTIFY_RIGHT)
+                               gtk_box_pack_start(GTK_BOX(hbox), arrow,
+                                                  FALSE, FALSE, 0);
+                       else
+                               gtk_box_pack_end(GTK_BOX(hbox), arrow,
+                                                FALSE, FALSE, 0);
+               }
+
+               gtk_widget_show_all(hbox);
+               gtk_clist_set_column_widget(clist, pos, hbox);
+       }
+}
+
 void summary_sort(SummaryView *summaryview, SummarySortType type)
 {
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
@@ -1728,6 +1904,9 @@ void summary_sort(SummaryView *summaryview, SummarySortType type)
        case SORT_BY_SCORE:
                cmp_func = (GtkCListCompareFunc)summary_cmp_by_score;
                break;
+       case SORT_BY_LOCKED:
+               cmp_func = (GtkCListCompareFunc)summary_cmp_by_locked;
+               break;
        case SORT_BY_LABEL:
                cmp_func = (GtkCListCompareFunc)summary_cmp_by_label;
                break;
@@ -1752,11 +1931,11 @@ void summary_sort(SummaryView *summaryview, SummarySortType type)
        gtk_clist_set_sort_type(clist, summaryview->sort_type);
        summaryview->sort_mode = type;
 
-       gtk_ctree_sort_node(ctree, NULL);
+       summary_set_column_titles(summaryview);
 
-       gtk_ctree_node_moveto(ctree, summaryview->selected, -1, 0.5, 0);
-       /*gtkut_ctree_set_focus_row(ctree, summaryview->selected);*/
+       gtk_ctree_sort_recursive(ctree, NULL);
 
+       gtk_ctree_node_moveto(ctree, summaryview->selected, -1, 0.5, 0);
        prefs_folder_item_set_config(summaryview->folder_item,
                                     summaryview->sort_type,
                                     summaryview->sort_mode);
@@ -1768,22 +1947,41 @@ void summary_sort(SummaryView *summaryview, SummarySortType type)
        main_window_cursor_normal(summaryview->mainwin);
 }
 
-static GtkCTreeNode * subject_table_lookup(GHashTable *subject_table,
-                                          gchar * subject)
+gboolean summary_insert_gnode_func(GtkCTree *ctree, guint depth, GNode *gnode,
+                                  GtkCTreeNode *cnode, gpointer data)
 {
-       if (g_strncasecmp(subject, "Re: ", 4) == 0)
-               return g_hash_table_lookup(subject_table, subject + 4);
-       else
-               return g_hash_table_lookup(subject_table, subject);
-}
+       SummaryView *summaryview = (SummaryView *)data;
+       MsgInfo *msginfo = (MsgInfo *)gnode->data;
+       gchar *text[N_SUMMARY_COLS];
+       gint *col_pos = summaryview->col_pos;
+       const gchar *msgid = msginfo->msgid;
+       GHashTable *msgid_table = summaryview->msgid_table;
 
-static void subject_table_insert(GHashTable *subject_table, gchar * subject,
-                                GtkCTreeNode * node)
-{
-       if (g_strncasecmp(subject, "Re: ", 4) == 0)
-               g_hash_table_insert(subject_table, subject + 4, node);
-       else
-               g_hash_table_insert(subject_table, subject, node);
+       summary_set_header(summaryview, text, msginfo);
+
+       gtk_ctree_set_node_info(ctree, cnode, text[col_pos[S_COL_SUBJECT]], 2,
+                               NULL, NULL, NULL, NULL, FALSE,
+                               gnode->parent->parent ? TRUE : FALSE);
+#define SET_TEXT(col) \
+       gtk_ctree_node_set_text(ctree, cnode, col_pos[col], \
+                               text[col_pos[col]])
+
+       SET_TEXT(S_COL_NUMBER);
+       SET_TEXT(S_COL_SCORE);
+       SET_TEXT(S_COL_SIZE);
+       SET_TEXT(S_COL_DATE);
+       SET_TEXT(S_COL_FROM);
+       SET_TEXT(S_COL_SUBJECT);
+
+#undef SET_TEXT
+
+       GTKUT_CTREE_NODE_SET_ROW_DATA(cnode, msginfo);
+       summary_set_marks_func(ctree, cnode, summaryview);
+
+       if (msgid)
+               g_hash_table_insert(msgid_table, (gchar *)msgid, cnode);
+
+       return TRUE;
 }
 
 static void summary_set_ctree_from_list(SummaryView *summaryview,
@@ -1793,8 +1991,7 @@ static void summary_set_ctree_from_list(SummaryView *summaryview,
        MsgInfo *msginfo;
        MsgInfo *parentinfo;
        MsgInfo *cur_msginfo;
-       GtkCTreeNode *node, *parent;
-       gchar *text[N_SUMMARY_COLS];
+       GtkCTreeNode *node = NULL;
        GHashTable *msgid_table;
        GHashTable *subject_table;
        GSList * cur;
@@ -1827,126 +2024,58 @@ static void summary_set_ctree_from_list(SummaryView *summaryview,
                        summaryview->important_score =
                                summaryview->folder_item->prefs->important_score;
        }
+
+       summaryview_subject_filter_init(summaryview->folder_item->prefs);
        
        if (summaryview->folder_item->threaded) {
+               GNode *root, *gnode;
+
+               root = procmsg_get_thread_tree(mlist);
+
+               for (gnode = root->children; gnode != NULL;
+                    gnode = gnode->next) {
+                       node = gtk_ctree_insert_gnode
+                               (ctree, NULL, node, gnode,
+                                summary_insert_gnode_func, summaryview);
+               }
+
+               g_node_destroy(root);
+
+               summary_thread_init(summaryview);
+       } else {
+               gchar *text[N_SUMMARY_COLS];
+
+               mlist = g_slist_reverse(mlist);
                for (; mlist != NULL; mlist = mlist->next) {
                        msginfo = (MsgInfo *)mlist->data;
-                       parent = NULL;
-
-                       summary_set_header(text, msginfo);
 
-                       /* search parent node for threading */
-                       if (msginfo->inreplyto && *msginfo->inreplyto) {
-                               parent = g_hash_table_lookup
-                                       (msgid_table, msginfo->inreplyto);
-                       }
-                       if (parent == NULL && msginfo->subject &&
-                           g_strncasecmp(msginfo->subject, "Re: ", 4) == 0) {
-                               parent = subject_table_lookup
-                                       (subject_table, msginfo->subject);
-                       }
-                       if(parent) {
-                               parentinfo = gtk_ctree_node_get_row_data(ctree, parent);
-                               if(!MSG_IS_IGNORE_THREAD(msginfo->flags) && parentinfo && MSG_IS_IGNORE_THREAD(parentinfo->flags)) {
-                                       MSG_SET_PERM_FLAGS(msginfo->flags, MSG_IGNORE_THREAD);
-                               }
-                       }
+                       summary_set_header(summaryview, text, msginfo);
 
                        node = gtk_ctree_insert_node
-                               (ctree, parent, NULL, text, 2,
-                                NULL, NULL, NULL, NULL, FALSE,
-                                parent ? TRUE : FALSE);
+                               (ctree, NULL, node, text, 2,
+                                NULL, NULL, NULL, NULL, FALSE, FALSE);
                        GTKUT_CTREE_NODE_SET_ROW_DATA(node, msginfo);
                        summary_set_marks_func(ctree, node, summaryview);
-                       
-                       if (MSG_GET_COLORLABEL(msginfo->flags))
-                               summary_set_colorlabel_color(ctree, node, MSG_GET_COLORLABEL_VALUE(msginfo->flags));
-
-                       /* preserve previous node if the message is
-                          duplicated */
-                       if (msginfo->msgid && *msginfo->msgid &&
-                           g_hash_table_lookup(msgid_table, msginfo->msgid)
-                           == NULL)
+
+                       if (msginfo->msgid)
                                g_hash_table_insert(msgid_table,
                                                    msginfo->msgid, node);
-                       if (msginfo->subject &&
-                           subject_table_lookup(subject_table,
-                                                msginfo->subject) == NULL) {
-                               subject_table_insert(subject_table,
-                                                    msginfo->subject, node);
-                       }
-
-                       cur_parent = parent;
-                       cur_msginfo = msginfo;
-                       while (cur_parent != NULL) {
-                               parentinfo = gtk_ctree_node_get_row_data(ctree, cur_parent);
-
-                               if (!parentinfo)
-                                       break;
-                               
-                               if (parentinfo->threadscore <
-                                   cur_msginfo->threadscore) {
-                                       gchar * s;
-                                       parentinfo->threadscore =
-                                               cur_msginfo->threadscore;
-#if 0
-                                       s = itos(parentinfo->threadscore);
-                                       gtk_ctree_node_set_text(ctree, cur_parent, S_COL_SCORE, s);
-#endif
-                               }
-                               else break;
-                               
-                               cur_msginfo = parentinfo;
-                               if (cur_msginfo->inreplyto &&
-                                   *cur_msginfo->inreplyto) {
-                                       cur_parent = g_hash_table_lookup(msgid_table, cur_msginfo->inreplyto);
-                               }
-                               if (cur_parent == NULL &&
-                                   cur_msginfo->subject &&
-                                   g_strncasecmp(cur_msginfo->subject,
-                                                 "Re: ", 4) == 0) {
-                                       cur_parent = subject_table_lookup(subject_table, cur_msginfo->subject);
-                               }
-                       }
-               }
-
-               /* complete the thread */
-               summary_thread_build(summaryview, TRUE);
-       } else {
-               for (; mlist != NULL; mlist = mlist->next) {
-                       msginfo = (MsgInfo *)mlist->data;
-
-                       summary_set_header(text, msginfo);
-
-                       node = gtk_ctree_insert_node
-                               (ctree, NULL, NULL, text, 2,
-                                NULL, NULL, NULL, NULL, FALSE, FALSE);
-                       GTKUT_CTREE_NODE_SET_ROW_DATA(node, msginfo);
-                       summary_set_marks_func(ctree, node, summaryview);
 
-                       if ( MSG_GET_COLORLABEL(msginfo->flags) )
-                         summary_set_colorlabel_color(ctree, node, MSG_GET_COLORLABEL_VALUE(msginfo->flags));
-
-                       if (msginfo->msgid && *msginfo->msgid &&
-                           g_hash_table_lookup(msgid_table, msginfo->msgid)
-                           == NULL)
-                               g_hash_table_insert(msgid_table,
-                                                   msginfo->msgid, node);
-
-                       if (msginfo->subject &&
-                           subject_table_lookup(subject_table,
-                                                msginfo->subject) == NULL)
-                               subject_table_insert(subject_table,
-                                                    msginfo->subject, node);
+                       subject_table_insert(subject_table,
+                                            msginfo->subject,
+                                            node);
                }
+               mlist = g_slist_reverse(mlist);
        }
 
-       if (prefs_common.enable_hscrollbar) {
+       if (prefs_common.enable_hscrollbar &&
+           summaryview->col_pos[S_COL_SUBJECT] == N_SUMMARY_COLS - 1) {
                gint optimal_width;
 
                optimal_width = gtk_clist_optimal_column_width
-                       (GTK_CLIST(ctree), S_COL_SUBJECT);
-               gtk_clist_set_column_width(GTK_CLIST(ctree), S_COL_SUBJECT,
+                       (GTK_CLIST(ctree), summaryview->col_pos[S_COL_SUBJECT]);
+               gtk_clist_set_column_width(GTK_CLIST(ctree),
+                                          summaryview->col_pos[S_COL_SUBJECT],
                                           optimal_width);
        }
 
@@ -2071,58 +2200,62 @@ static void summary_write_cache_func(GtkCTree *ctree, GtkCTreeNode *node,
        procmsg_write_flags(msginfo, fps->mark_fp);
 }
 
-static void summary_set_header(gchar *text[], MsgInfo *msginfo)
+static void summary_set_header(SummaryView *summaryview, gchar *text[],
+                              MsgInfo *msginfo)
 {
        static gchar date_modified[80];
        static gchar *to = NULL;
        static gchar *from_name = NULL;
        static gchar col_number[11];
        static gchar col_score[11];
+       static gchar buf[BUFFSIZE];
+       PrefsFolderItem *prefs = summaryview->folder_item->prefs;
+       gint *col_pos = summaryview->col_pos;
+
+       text[col_pos[S_COL_MARK]]   = NULL;
+       text[col_pos[S_COL_UNREAD]] = NULL;
+       text[col_pos[S_COL_MIME]]   = NULL;
+       text[col_pos[S_COL_LOCKED]] = NULL;
+       text[col_pos[S_COL_NUMBER]] = itos(msginfo->msgnum);
+       text[col_pos[S_COL_SIZE]]   = to_human_readable(msginfo->size);
 
-       text[S_COL_MARK]   = NULL;
-       text[S_COL_UNREAD] = NULL;
-       text[S_COL_MIME]   = NULL;
-       text[S_COL_NUMBER] = itos_buf(col_number, msginfo->msgnum);
-       text[S_COL_SIZE]   = to_human_readable(msginfo->size);
 #if 0
-       text[S_COL_SCORE]  = itos_buf(col_score, msginfo->threadscore);
+       text[col_pos[S_COL_SCORE]]  = itos_buf(col_score, msginfo->threadscore);
 #else
-       text[S_COL_SCORE]  = itos_buf(col_score, msginfo->score);
-#endif
+       text[col_pos[S_COL_SCORE]]  = itos_buf(col_score, msginfo->score);
+#endif 
 
        if (msginfo->date_t) {
                procheader_date_get_localtime(date_modified,
                                              sizeof(date_modified),
                                              msginfo->date_t);
-               text[S_COL_DATE] = date_modified;
+               text[col_pos[S_COL_DATE]] = date_modified;
        } else if (msginfo->date)
-               text[S_COL_DATE] = msginfo->date;
+               text[col_pos[S_COL_DATE]] = msginfo->date;
        else
-               text[S_COL_DATE] = _("(No Date)");
+               text[col_pos[S_COL_DATE]] = _("(No Date)");
 
-       text[S_COL_FROM] = msginfo->fromname ? msginfo->fromname :
+       text[col_pos[S_COL_FROM]] = msginfo->fromname ? msginfo->fromname :
                _("(No From)");
        if (prefs_common.swap_from && msginfo->from && msginfo->to &&
            !MSG_IS_NEWS(msginfo->flags)) {
                gchar *from;
 
-               Xalloca(from, strlen(msginfo->from) + 1, return);
-               strcpy(from, msginfo->from);
+               Xstrdup_a(from, msginfo->from, return);
                extract_address(from);
                if (account_find_from_address(from)) {
                        g_free(to);
                        to = g_strconcat("-->", msginfo->to, NULL);
-                       text[S_COL_FROM] = to;
+                       text[col_pos[S_COL_FROM]] = to;
                }
        }
 
-       if ((text[S_COL_FROM] != to) && prefs_common.use_addr_book &&
+       if ((text[col_pos[S_COL_FROM]] != to) && prefs_common.use_addr_book &&
            msginfo->from) {
                gint count;
                gchar *from;
   
-               Xalloca(from, strlen(msginfo->from) + 1, return);
-               strcpy(from, msginfo->from);
+               Xstrdup_a(from, msginfo->from, return);
                extract_address(from);
                if (*from) {
                        count = complete_address(from);
@@ -2131,13 +2264,21 @@ static void summary_set_header(gchar *text[], MsgInfo *msginfo)
                                from = get_complete_address(1);
                                from_name = procheader_get_fromname(from);
                                g_free(from);
-                               text[S_COL_FROM] = from_name;
+                               text[col_pos[S_COL_FROM]] = from_name;
                        }
                }
        }
 
-       text[S_COL_SUBJECT] = msginfo->subject ? msginfo->subject :
-               _("(No Subject)");
+       if (prefs->enable_simplify_subject 
+           && prefs->simplify_subject_preg != NULL )
+               text[col_pos[S_COL_SUBJECT]] = msginfo->subject ? 
+                       string_remove_match(buf, BUFFSIZE, msginfo->subject, 
+                                       prefs->simplify_subject_preg) : 
+                       
+                       _("(No Subject)");
+       else 
+               text[col_pos[S_COL_SUBJECT]] = msginfo->subject ? msginfo->subject :
+                       _("(No Subject)");
 }
 
 #define CHANGE_FLAGS(msginfo) \
@@ -2153,14 +2294,14 @@ static void summary_display_msg(SummaryView *summaryview, GtkCTreeNode *row,
 {
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
        MsgInfo *msginfo;
+       MsgFlags flags;
        gchar *filename;
-       static gboolean lock = FALSE;
 
        if (!new_window && summaryview->displayed == row) return;
        g_return_if_fail(row != NULL);
 
-       if (lock) return;
-       lock = TRUE;
+       if (summary_is_locked(summaryview)) return;
+       summary_lock(summaryview);
 
        STATUSBAR_POP(summaryview->mainwin);
        GTK_EVENTS_FLUSH();
@@ -2169,7 +2310,7 @@ static void summary_display_msg(SummaryView *summaryview, GtkCTreeNode *row,
 
        filename = procmsg_get_message_file(msginfo);
        if (!filename) {
-               lock = FALSE;
+               summary_unlock(summaryview);
                return;
        }
        g_free(filename);
@@ -2178,14 +2319,18 @@ static void summary_display_msg(SummaryView *summaryview, GtkCTreeNode *row,
                summaryview->newmsgs--;
        if (MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags))
                summaryview->unread--;
-       if (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags)) {
+       if (MSG_IS_NEW(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags) || 
+           MSG_IS_UNREAD(msginfo->flags) && !MSG_IS_IGNORE_THREAD(msginfo->flags)) {
                MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_NEW | MSG_UNREAD);
-               CHANGE_FLAGS(msginfo);
+               if (MSG_IS_IMAP(msginfo->flags))
+                       imap_msg_unset_perm_flags(msginfo, MSG_NEW | MSG_UNREAD);
                summary_set_row_marks(summaryview, row);
                gtk_clist_thaw(GTK_CLIST(ctree));
                summary_status_show(summaryview);
        }
 
+       flags = msginfo->flags;
+
        if (new_window) {
                MessageView *msgview;
 
@@ -2208,10 +2353,19 @@ static void summary_display_msg(SummaryView *summaryview, GtkCTreeNode *row,
                gtkut_ctree_node_move_if_on_the_edge(ctree, row);
        }
 
+       if (MSG_IS_NEW(msginfo->flags) || MSG_IS_UNREAD(msginfo->flags) ||
+           (MSG_IS_MIME(msginfo->flags) - MSG_IS_MIME(flags) != 0)) {
+               MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_NEW | MSG_UNREAD);
+               CHANGE_FLAGS(msginfo);
+               summary_set_row_marks(summaryview, row);
+               gtk_clist_thaw(GTK_CLIST(ctree));
+               summary_status_show(summaryview);
+       }
+
        if (GTK_WIDGET_VISIBLE(summaryview->headerwin->window))
                header_window_show(summaryview->headerwin, msginfo);
 
-       lock = FALSE;
+       summary_unlock(summaryview);
 }
 
 void summary_redisplay_msg(SummaryView *summaryview)
@@ -2251,10 +2405,10 @@ void summary_reedit(SummaryView *summaryview)
        MsgInfo *msginfo;
 
        if (!summaryview->selected) return;
-       if (!summaryview->folder_item ||
-           (summaryview->folder_item->stype != F_DRAFT &&
-            summaryview->folder_item->stype != F_OUTBOX &&
-            summaryview->folder_item->stype != F_QUEUE)) return;
+       if (!summaryview->folder_item) return;
+       if (summaryview->folder_item->stype != F_OUTBOX &&
+           summaryview->folder_item->stype != F_DRAFT  &&
+           summaryview->folder_item->stype != F_QUEUE) return;
 
        msginfo = gtk_ctree_node_get_row_data(GTK_CTREE(summaryview->ctree),
                                              summaryview->selected);
@@ -2276,18 +2430,32 @@ void summary_step(SummaryView *summaryview, GtkScrollType type)
 
        gtk_signal_emit_by_name(GTK_OBJECT(ctree), "scroll_vertical",
                                type, 0.0);
-
+       
        if (summaryview->msg_is_toggled_on)
                summary_display_msg(summaryview, summaryview->selected, FALSE);
 }
 
 static void summary_toggle_view(SummaryView *summaryview)
+{
+       MainWindow *mainwin = summaryview->mainwin;
+       GtkItemFactory *ifactory;
+       
+       if (!mainwin) return;
+       
+       ifactory = gtk_item_factory_from_widget(mainwin->menubar);
+       menu_toggle_toggle(ifactory, "/View/Expand Summary View");
+}
+
+void summary_toggle_view_real(SummaryView *summaryview)
 {
        MainWindow *mainwin = summaryview->mainwin;
        union CompositeWin *cwin = &mainwin->win;
        GtkWidget *vpaned = NULL;
        GtkWidget *container = NULL;
-
+       GtkWidget *toggle_view_btn;
+       GtkWidget *toggle_view_arrow;
+       GtkItemFactory *ifactory = gtk_item_factory_from_widget(mainwin->menubar);
+       
        switch (mainwin->type) {
        case SEPARATE_NONE:
                vpaned = cwin->sep_none.vpaned;
@@ -2306,20 +2474,47 @@ static void summary_toggle_view(SummaryView *summaryview)
                summaryview->msg_is_toggled_on = FALSE;
                summaryview->displayed = NULL;
                gtk_widget_ref(vpaned);
-               gtk_container_remove(GTK_CONTAINER(container), vpaned);
+               gtkut_container_remove(GTK_CONTAINER(container), vpaned);
                gtk_widget_reparent(GTK_WIDGET_PTR(summaryview), container);
-               gtk_arrow_set(GTK_ARROW(summaryview->toggle_arrow),
-                             GTK_ARROW_UP, GTK_SHADOW_OUT);
+               
+               gtk_widget_destroy(summaryview->toggle_view_arrow);
+               gtk_widget_destroy(summaryview->toggle_view_btn);
+               
+               toggle_view_btn = gtk_button_new();
+               gtk_box_pack_end(GTK_BOX(summaryview->hbox), toggle_view_btn, FALSE, FALSE, 0);
+               gtk_box_reorder_child(GTK_BOX(summaryview->hbox), toggle_view_btn, 0);
+               gtk_button_set_relief(GTK_BUTTON(toggle_view_btn), GTK_RELIEF_NONE);
+               toggle_view_arrow=gtk_arrow_new(GTK_ARROW_UP, GTK_SHADOW_OUT);
+               gtk_container_add(GTK_CONTAINER(toggle_view_btn), toggle_view_arrow);
+               gtk_signal_connect(GTK_OBJECT(toggle_view_btn), "clicked",
+                                       GTK_SIGNAL_FUNC(summary_toggle_view_cb), summaryview);
+               gtk_widget_show_all(toggle_view_btn);
+               menu_set_sensitive(ifactory, "/View/Expand Message View", FALSE);
        } else {
                summaryview->msg_is_toggled_on = TRUE;
                gtk_widget_reparent(GTK_WIDGET_PTR(summaryview), vpaned);
                gtk_container_add(GTK_CONTAINER(container), vpaned);
                gtk_widget_unref(vpaned);
-               gtk_arrow_set(GTK_ARROW(summaryview->toggle_arrow),
-                             GTK_ARROW_DOWN, GTK_SHADOW_OUT);
+               
+               gtk_widget_destroy(summaryview->toggle_view_arrow);
+               gtk_widget_destroy(summaryview->toggle_view_btn);
+               
+               toggle_view_btn = gtk_button_new();
+               gtk_box_pack_end(GTK_BOX(summaryview->hbox), toggle_view_btn, FALSE, FALSE, 0);
+               gtk_box_reorder_child(GTK_BOX(summaryview->hbox), toggle_view_btn, 0);
+               gtk_button_set_relief(GTK_BUTTON(toggle_view_btn), GTK_RELIEF_NONE);
+               toggle_view_arrow=gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_OUT);
+               gtk_container_add(GTK_CONTAINER(toggle_view_btn), toggle_view_arrow);
+               gtk_signal_connect(GTK_OBJECT(toggle_view_btn), "clicked",
+                                       GTK_SIGNAL_FUNC(summary_toggle_view_cb), summaryview);
+               gtk_widget_show_all(toggle_view_btn);
+               menu_set_sensitive(ifactory, "/View/Expand Message View", TRUE);
        }
 
        gtk_widget_grab_focus(summaryview->ctree);
+       
+       summaryview->toggle_view_btn = toggle_view_btn;
+       summaryview->toggle_view_arrow = toggle_view_arrow;
 }
 
 static gboolean summary_search_unread_recursive(GtkCTree *ctree,
@@ -2368,6 +2563,7 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
        GtkStyle *style = NULL;
        MsgInfo *msginfo;
        MsgFlags flags;
+       gint *col_pos = summaryview->col_pos;
 
        msginfo = gtk_ctree_node_get_row_data(ctree, row);
        if (!msginfo) return;
@@ -2378,22 +2574,23 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
 
        /* set new/unread column */
        if (MSG_IS_IGNORE_THREAD(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_UNREAD,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_UNREAD],
                                          ignorethreadxpm, ignorethreadxpmmask);
        } else if (MSG_IS_NEW(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_UNREAD,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_UNREAD],
                                          newxpm, newxpmmask);
        } else if (MSG_IS_UNREAD(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_UNREAD,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_UNREAD],
                                          unreadxpm, unreadxpmmask);
        } else if (MSG_IS_REPLIED(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_UNREAD,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_UNREAD],
                                          repliedxpm, repliedxpmmask);
        } else if (MSG_IS_FORWARDED(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_UNREAD,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_UNREAD],
                                          forwardedxpm, forwardedxpmmask);
        } else {
-               gtk_ctree_node_set_text(ctree, row, S_COL_UNREAD, NULL);
+               gtk_ctree_node_set_text(ctree, row, col_pos[S_COL_UNREAD],
+                                       NULL);
        }
 
        if (prefs_common.bold_unread &&
@@ -2405,7 +2602,7 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
 
        /* set mark column */
        if (MSG_IS_DELETED(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_MARK,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_MARK],
                                          deletedxpm, deletedxpmmask);
                if (style)
                        style = bold_deleted_style;
@@ -2415,10 +2612,10 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
                        gtk_ctree_node_set_foreground
                                (ctree, row, &summaryview->color_dim);
        } else if (MSG_IS_MARKED(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_MARK,
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_MARK],
                                          markxpm, markxpmmask);
        } else if (MSG_IS_MOVE(flags)) {
-               gtk_ctree_node_set_text(ctree, row, S_COL_MARK, "o");
+               gtk_ctree_node_set_text(ctree, row, col_pos[S_COL_MARK], "o");
                if (style)
                        style = bold_marked_style;
                else {
@@ -2427,8 +2624,8 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
                        gtk_ctree_node_set_foreground
                                (ctree, row, &summaryview->color_marked);
        } else if (MSG_IS_COPY(flags)) {
-               gtk_ctree_node_set_text(ctree, row, S_COL_MARK, "O");
-                if (style)
+               gtk_ctree_node_set_text(ctree, row, col_pos[S_COL_MARK], "O");
+               if (style)
                        style = bold_marked_style;
                else {
                        style = small_marked_style;
@@ -2444,14 +2641,28 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
                gtk_ctree_node_set_foreground(ctree, row,
                                              &summaryview->color_important);
        } else {
-               gtk_ctree_node_set_text(ctree, row, S_COL_MARK, NULL);
+               gtk_ctree_node_set_text(ctree, row, col_pos[S_COL_MARK], NULL);
+       }
+
+       if (MSG_IS_LOCKED(flags)) {
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_LOCKED],
+                                         lockedxpm, lockedxpmmask);
+       }
+       else {
+               gtk_ctree_node_set_text(ctree, row, col_pos[S_COL_LOCKED], NULL);
        }
 
-       if (MSG_IS_MIME(flags)) {
-               gtk_ctree_node_set_pixmap(ctree, row, S_COL_MIME,
+       if (MSG_IS_MIME(flags) && MSG_IS_ENCRYPTED(flags)) {
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_MIME],
+                                         clipkeyxpm, clipkeyxpmmask);
+       } else if (MSG_IS_ENCRYPTED(flags)) {
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_MIME],
+                                         keyxpm, keyxpmmask);
+       } else if (MSG_IS_MIME(flags)) {
+               gtk_ctree_node_set_pixmap(ctree, row, col_pos[S_COL_MIME],
                                          clipxpm, clipxpmmask);
        } else {
-               gtk_ctree_node_set_text(ctree, row, S_COL_MIME, NULL);
+               gtk_ctree_node_set_text(ctree, row, col_pos[S_COL_MIME], NULL);
        }
         if (!style)
                style = small_style;
@@ -2465,7 +2676,11 @@ static void summary_set_row_marks(SummaryView *summaryview, GtkCTreeNode *row)
 
 void summary_set_marks_selected(SummaryView *summaryview)
 {
-       summary_set_row_marks(summaryview, summaryview->selected);
+       GList *cur;
+
+       for (cur = GTK_CLIST(summaryview->ctree)->selection; cur != NULL;
+            cur = cur->next)
+               summary_set_row_marks(summaryview, GTK_CTREE_NODE(cur->data));
 }
 
 static void summary_mark_row(SummaryView *summaryview, GtkCTreeNode *row)
@@ -2494,9 +2709,45 @@ static void summary_mark_row(SummaryView *summaryview, GtkCTreeNode *row)
        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_DELETED);
        MSG_UNSET_TMP_FLAGS(msginfo->flags, MSG_MOVE | MSG_COPY);
        MSG_SET_PERM_FLAGS(msginfo->flags, MSG_MARKED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_set_perm_flags(msginfo, MSG_MARKED);
+       CHANGE_FLAGS(msginfo);
+       summary_set_row_marks(summaryview, row);
+       debug_print(_("Message %s/%d is marked\n"), msginfo->folder->path, msginfo->msgnum);
+}
+
+static void summary_lock_row(SummaryView *summaryview, GtkCTreeNode *row)
+{
+       /* almost verbatim summary_mark_row(); may want a menu action? */
+       gboolean changed = FALSE;
+       GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
+       MsgInfo *msginfo;
+
+       msginfo = gtk_ctree_node_get_row_data(ctree, row);
+       if (MSG_IS_DELETED(msginfo->flags))
+               summaryview->deleted--;
+       if (MSG_IS_MOVE(msginfo->flags)) {
+               summaryview->moved--;
+               changed = TRUE;
+       }
+       if (MSG_IS_COPY(msginfo->flags)) {
+               summaryview->copied--;
+               changed = TRUE;
+       }
+       if (changed && !prefs_common.immediate_exec) {
+               msginfo->to_folder->op_count--;
+               if (msginfo->to_folder->op_count == 0)
+                       folderview_update_item(msginfo->to_folder, 0);
+       }
+       msginfo->to_folder = NULL;
+       MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_DELETED);
+       MSG_UNSET_TMP_FLAGS(msginfo->flags, MSG_MOVE | MSG_COPY);
+       MSG_SET_PERM_FLAGS(msginfo->flags, MSG_LOCKED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_set_perm_flags(msginfo, MSG_LOCKED);
        CHANGE_FLAGS(msginfo);
        summary_set_row_marks(summaryview, row);
-       debug_print(_("Message %d is marked\n"), msginfo->msgnum);
+       debug_print(_("Message %d is locked\n"), msginfo->msgnum);
 }
 
 void summary_mark(SummaryView *summaryview)
@@ -2525,6 +2776,8 @@ static void summary_mark_row_as_read(SummaryView *summaryview,
        if (MSG_IS_NEW(msginfo->flags) ||
            MSG_IS_UNREAD(msginfo->flags)) {
                MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_NEW | MSG_UNREAD);
+               if (MSG_IS_IMAP(msginfo->flags))
+                       imap_msg_unset_perm_flags(msginfo, MSG_NEW | MSG_UNREAD);
                CHANGE_FLAGS(msginfo);
                summary_set_row_marks(summaryview, row);
                debug_print(_("Message %d is marked as read\n"),
@@ -2577,8 +2830,12 @@ static void summary_mark_row_as_unread(SummaryView *summaryview,
                summaryview->deleted--;
        }
        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_REPLIED | MSG_FORWARDED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_unset_perm_flags(msginfo, MSG_REPLIED);
        if (!MSG_IS_UNREAD(msginfo->flags)) {
                MSG_SET_PERM_FLAGS(msginfo->flags, MSG_UNREAD);
+               if (MSG_IS_IMAP(msginfo->flags))
+                       imap_msg_set_perm_flags(msginfo, MSG_UNREAD);
                summaryview->unread++;
                debug_print(_("Message %d is marked as unread\n"),
                            msginfo->msgnum);
@@ -2609,6 +2866,8 @@ static void summary_delete_row(SummaryView *summaryview, GtkCTreeNode *row)
 
        msginfo = gtk_ctree_node_get_row_data(ctree, row);
 
+       if (MSG_IS_LOCKED(msginfo->flags)) return;
+
        if (MSG_IS_DELETED(msginfo->flags)) return;
 
        if (MSG_IS_MOVE(msginfo->flags)) {
@@ -2626,12 +2885,15 @@ static void summary_delete_row(SummaryView *summaryview, GtkCTreeNode *row)
        }
        msginfo->to_folder = NULL;
        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_MARKED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_unset_perm_flags(msginfo, MSG_MARKED);
        MSG_UNSET_TMP_FLAGS(msginfo->flags, MSG_MOVE | MSG_COPY);
        MSG_SET_PERM_FLAGS(msginfo->flags, MSG_DELETED);
        CHANGE_FLAGS(msginfo);
        summaryview->deleted++;
 
-       if (!prefs_common.immediate_exec)
+       if (!prefs_common.immediate_exec && 
+           summaryview->folder_item->stype != F_TRASH)
                summary_set_row_marks(summaryview, row);
 
        debug_print(_("Message %s/%d is set to delete\n"),
@@ -2641,23 +2903,47 @@ static void summary_delete_row(SummaryView *summaryview, GtkCTreeNode *row)
 void summary_delete(SummaryView *summaryview)
 {
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
+       FolderItem *item = summaryview->folder_item;
        GList *cur;
+       GtkCTreeNode *sel_last = NULL;
+       GtkCTreeNode *node;
 
-       if (!summaryview->folder_item ||
-           summaryview->folder_item->folder->type == F_NEWS) return;
+       if (!item || item->folder->type == F_NEWS) return;
 
-       /* if current folder is trash, don't delete */
-       if (summaryview->folder_item->stype == F_TRASH) {
-               alertpanel_notice(_("Current folder is Trash."));
-               return;
+       if (summary_is_locked(summaryview)) return;
+
+       /* if current folder is trash, ask for confirmation */
+       if (item->stype == F_TRASH) {
+               AlertValue aval;
+
+               aval = alertpanel(_("Delete message(s)"),
+                                 _("Do you really want to delete message(s) from the trash?"),
+                                 _("Yes"), _("No"), NULL);
+               if (aval != G_ALERTDEFAULT) return;
        }
 
-       for (cur = GTK_CLIST(ctree)->selection; cur != NULL; cur = cur->next)
-               summary_delete_row(summaryview, GTK_CTREE_NODE(cur->data));
+       /* next code sets current row focus right. We need to find a row
+        * that is not deleted. */
+       for (cur = GTK_CLIST(ctree)->selection; cur != NULL; cur = cur->next) {
+               sel_last = GTK_CTREE_NODE(cur->data);
+               summary_delete_row(summaryview, sel_last);
+       }
 
-       summary_step(summaryview, GTK_SCROLL_STEP_FORWARD);
+       node = summary_find_next_msg(summaryview, sel_last);
+       if (!node)
+               node = summary_find_prev_msg(summaryview, sel_last);
 
-       if (prefs_common.immediate_exec)
+       if (node) {
+               if (sel_last && node == gtkut_ctree_node_next(ctree, sel_last))
+                       summary_step(summaryview, GTK_SCROLL_STEP_FORWARD);
+               else if (sel_last && node == GTK_CTREE_NODE_PREV(sel_last))
+                       summary_step(summaryview, GTK_SCROLL_STEP_BACKWARD);
+               else
+                       summary_select_node(summaryview, node,
+                                           summaryview->msg_is_toggled_on);
+       }
+
+       if (prefs_common.immediate_exec || item->stype == F_TRASH)
                summary_execute(summaryview);
        else
                summary_status_show(summaryview);
@@ -2726,10 +3012,11 @@ static void summary_unmark_row(SummaryView *summaryview, GtkCTreeNode *row)
        }
        msginfo->to_folder = NULL;
        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_MARKED | MSG_DELETED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_unset_perm_flags(msginfo, MSG_MARKED);
        MSG_UNSET_TMP_FLAGS(msginfo->flags, MSG_MOVE | MSG_COPY);
        CHANGE_FLAGS(msginfo);
        summary_set_row_marks(summaryview, row);
-
        debug_print(_("Message %s/%d is unmarked\n"),
                    msginfo->folder->path, msginfo->msgnum);
 }
@@ -2739,8 +3026,7 @@ void summary_unmark(SummaryView *summaryview)
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
        GList *cur;
 
-       for (cur = GTK_CLIST(ctree)->selection; cur != NULL;
-            cur = cur->next)
+       for (cur = GTK_CLIST(ctree)->selection; cur != NULL; cur = cur->next)
                summary_unmark_row(summaryview, GTK_CTREE_NODE(cur->data));
 
        summary_status_show(summaryview);
@@ -2774,6 +3060,8 @@ static void summary_move_row_to(SummaryView *summaryview, GtkCTreeNode *row,
                        msginfo->to_folder->op_count--;
        }
        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_MARKED | MSG_DELETED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_unset_perm_flags(msginfo, MSG_MARKED);
        MSG_UNSET_TMP_FLAGS(msginfo->flags, MSG_COPY);
        if (!MSG_IS_MOVE(msginfo->flags)) {
                MSG_SET_TMP_FLAGS(msginfo->flags, MSG_MOVE);
@@ -2800,6 +3088,9 @@ void summary_move_selected_to(SummaryView *summaryview, FolderItem *to_folder)
        if (!to_folder) return;
        if (!summaryview->folder_item ||
            summaryview->folder_item->folder->type == F_NEWS) return;
+
+       if (summary_is_locked(summaryview)) return;
+
        if (summaryview->folder_item == to_folder) {
                alertpanel_notice(_("Destination is same as current folder."));
                return;
@@ -2860,6 +3151,8 @@ static void summary_copy_row_to(SummaryView *summaryview, GtkCTreeNode *row,
                        msginfo->to_folder->op_count--;
        }
        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_MARKED | MSG_DELETED);
+       if (MSG_IS_IMAP(msginfo->flags))
+               imap_msg_unset_perm_flags(msginfo, MSG_MARKED);
        MSG_UNSET_TMP_FLAGS(msginfo->flags, MSG_MOVE);
        if (!MSG_IS_COPY(msginfo->flags)) {
                MSG_SET_TMP_FLAGS(msginfo->flags, MSG_COPY);
@@ -2886,6 +3179,9 @@ void summary_copy_selected_to(SummaryView *summaryview, FolderItem *to_folder)
        if (!to_folder) return;
        if (!summaryview->folder_item ||
            summaryview->folder_item->folder->type == F_NEWS) return;
+
+       if (summary_is_locked(summaryview)) return;
+
        if (summaryview->folder_item == to_folder) {
                alertpanel_notice
                        (_("Destination to copy is same as current folder."));
@@ -2959,13 +3255,18 @@ void summary_save_as(SummaryView *summaryview)
 {
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
        MsgInfo *msginfo;
+       gchar *filename = NULL;
        gchar *src, *dest;
 
        if (!summaryview->selected) return;
        msginfo = gtk_ctree_node_get_row_data(ctree, summaryview->selected);
        if (!msginfo) return;
 
-       dest = filesel_select_file(_("Save as"), NULL);
+       if (msginfo->subject) {
+               Xstrdup_a(filename, msginfo->subject, return);
+               subst_for_filename(filename);
+       }
+       dest = filesel_select_file(_("Save as"), filename);
        if (!dest) return;
        if (is_file_exist(dest)) {
                AlertValue aval;
@@ -3014,14 +3315,17 @@ void summary_print(SummaryView *summaryview)
        g_free(cmdline);
 }
 
-void summary_execute(SummaryView *summaryview)
+gboolean summary_execute(SummaryView *summaryview)
 {
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
        GtkCList *clist = GTK_CLIST(summaryview->ctree);
        GtkCTreeNode *node, *next;
 
        if (!summaryview->folder_item ||
-           summaryview->folder_item->folder->type == F_NEWS) return;
+           summaryview->folder_item->folder->type == F_NEWS) return FALSE;
+
+       if (summary_is_locked(summaryview)) return FALSE;
+       summary_lock(summaryview);
 
        gtk_clist_freeze(clist);
 
@@ -3049,7 +3353,7 @@ void summary_execute(SummaryView *summaryview)
        }
 
        if (summaryview->folder_item->threaded)
-               summary_thread_build(summaryview, FALSE);
+               summary_thread_build(summaryview);
 
        summaryview->selected = clist->selection ?
                GTK_CTREE_NODE(clist->selection->data) : NULL;
@@ -3069,6 +3373,9 @@ void summary_execute(SummaryView *summaryview)
        gtk_ctree_node_moveto(ctree, summaryview->selected, -1, 0.5, 0);
 
        gtk_clist_thaw(clist);
+
+       summary_unlock(summaryview);
+       return TRUE;
 }
 
 static void summary_execute_move(SummaryView *summaryview)
@@ -3176,7 +3483,6 @@ static void summary_execute_delete(SummaryView *summaryview)
        if (summaryview->folder_item->folder->type == F_MH) {
                g_return_if_fail(trash != NULL);
        }
-       if (summaryview->folder_item == trash) return;
 
        /* search deleting messages and execute */
        gtk_ctree_pre_recursive
@@ -3184,12 +3490,10 @@ static void summary_execute_delete(SummaryView *summaryview)
 
        if (!summaryview->mlist) return;
 
-       for(cur = summaryview->mlist ; cur != NULL ; cur = cur->next) {
-               MsgInfo * msginfo = cur->data;
-               MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_DELETED);
-       }
-
-       folder_item_move_msgs_with_dest(trash, summaryview->mlist);
+       if (summaryview->folder_item != trash)
+               folder_item_move_msgs_with_dest(trash, summaryview->mlist);
+       else
+               folder_item_remove_msgs(trash, summaryview->mlist);
 
        for (cur = summaryview->mlist; cur != NULL; cur = cur->next)
                procmsg_msginfo_free((MsgInfo *)cur->data);
@@ -3197,8 +3501,10 @@ static void summary_execute_delete(SummaryView *summaryview)
        g_slist_free(summaryview->mlist);
        summaryview->mlist = NULL;
 
-       folder_item_scan(trash);
-       folderview_update_item(trash, FALSE);
+       if (summaryview->folder_item != trash) {
+               folder_item_scan(trash);
+               folderview_update_item(trash, FALSE);
+       }
 }
 
 static void summary_execute_delete_func(GtkCTree *ctree, GtkCTreeNode *node,
@@ -3219,19 +3525,12 @@ static void summary_execute_delete_func(GtkCTree *ctree, GtkCTreeNode *node,
                                                msginfo->msgid))
                        g_hash_table_remove(summaryview->msgid_table,
                                            msginfo->msgid);
-
-               if (msginfo->subject && 
-                   node == subject_table_lookup(summaryview->subject_table, 
-                                               msginfo->subject)) {
-                       gchar *s = msginfo->subject + (g_strncasecmp(msginfo->subject, "Re: ", 4) == 0 ? 4 : 0);
-                       g_hash_table_remove(summaryview->subject_table, s);
-               }                       
        }
 }
 
 /* thread functions */
 
-void summary_thread_build(SummaryView *summaryview, gboolean init)
+void summary_thread_build(SummaryView *summaryview)
 {
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
        GtkCTreeNode *node;
@@ -3239,6 +3538,8 @@ void summary_thread_build(SummaryView *summaryview, gboolean init)
        GtkCTreeNode *parent;
        MsgInfo *msginfo;
 
+       summary_lock(summaryview);
+
        debug_print(_("Building threads..."));
        STATUSBAR_PUSH(summaryview->mainwin, _("Building threads..."));
        main_window_cursor_wait(summaryview->mainwin);
@@ -3253,24 +3554,25 @@ void summary_thread_build(SummaryView *summaryview, gboolean init)
 
                msginfo = GTKUT_CTREE_NODE_GET_ROW_DATA(node);
 
+               parent = NULL;
+
                /* alfons - claws seems to prefer subject threading before
                 * inreplyto threading. we should look more deeply in this,
                 * because inreplyto should have precedence... */
                if (msginfo && msginfo->inreplyto) {
                        parent = g_hash_table_lookup(summaryview->msgid_table,
                                                     msginfo->inreplyto);
-                       if (parent && parent != node) {
-                               gtk_ctree_move(ctree, node, parent, NULL);
-                               gtk_ctree_expand(ctree, node);
-                       }
                }
-               else if (msginfo && msginfo->subject) {
-                       parent = g_hash_table_lookup
-                                       (summaryview->subject_table, msginfo->subject);
-                       if (parent && parent != node) {
-                               gtk_ctree_move(ctree, node, parent, NULL);
-                               gtk_ctree_expand(ctree, node);
-                       }
+
+               if (parent == NULL) {
+                       parent = subject_table_lookup
+                               (summaryview->subject_table,
+                                msginfo->subject);
+               }
+
+               if (parent && parent != node) {
+                       gtk_ctree_move(ctree, node, parent, NULL);
+                       gtk_ctree_expand(ctree, node);
                }
 
                node = next;
@@ -3278,34 +3580,14 @@ void summary_thread_build(SummaryView *summaryview, gboolean init)
 
        node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 
-       /* for optimization */
-       if (init) {
-               if (prefs_common.expand_thread) {
-                       while (node) {
-                               next = GTK_CTREE_ROW(node)->sibling;
-                               if (GTK_CTREE_ROW(node)->children)
-                                       gtk_ctree_expand(ctree, node);
-                               node = next;
-                       }
-               } else if (prefs_common.bold_unread) {
-                       while (node) {
-                               next = GTK_CTREE_ROW(node)->sibling;
-                               if (GTK_CTREE_ROW(node)->children)
-                                       summary_set_row_marks
-                                               (summaryview, node);
-                               node = next;
-                       }
-               }
-       } else {
-               while (node) {
-                       next = GTK_CTREE_NODE_NEXT(node);
-                       if (prefs_common.expand_thread)
-                               gtk_ctree_expand(ctree, node);
-                       if (prefs_common.bold_unread &&
-                           GTK_CTREE_ROW(node)->children)
-                               summary_set_row_marks(summaryview, node);
-                       node = next;
-               }
+       while (node) {
+               next = GTK_CTREE_NODE_NEXT(node);
+               if (prefs_common.expand_thread)
+                       gtk_ctree_expand(ctree, node);
+               if (prefs_common.bold_unread &&
+                   GTK_CTREE_ROW(node)->children)
+                       summary_set_row_marks(summaryview, node);
+               node = next;
        }
 
        gtk_clist_thaw(GTK_CLIST(ctree));
@@ -3315,6 +3597,31 @@ void summary_thread_build(SummaryView *summaryview, gboolean init)
        debug_print(_("done.\n"));
        STATUSBAR_POP(summaryview->mainwin);
        main_window_cursor_normal(summaryview->mainwin);
+
+       summary_unlock(summaryview);
+}
+
+static void summary_thread_init(SummaryView *summaryview)
+{
+       GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
+       GtkCTreeNode *node = GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
+       GtkCTreeNode *next;
+
+       if (prefs_common.expand_thread) {
+               while (node) {
+                       next = GTK_CTREE_ROW(node)->sibling;
+                       if (GTK_CTREE_ROW(node)->children)
+                               gtk_ctree_expand(ctree, node);
+                       node = next;
+               }
+       } else if (prefs_common.bold_unread) {
+               while (node) {
+                       next = GTK_CTREE_ROW(node)->sibling;
+                       if (GTK_CTREE_ROW(node)->children)
+                               summary_set_row_marks(summaryview, node);
+                       node = next;
+               }
+       }
 }
 
 void summary_unthread(SummaryView *summaryview)
@@ -3325,6 +3632,8 @@ void summary_unthread(SummaryView *summaryview)
        GtkCTreeNode *sibling;
        GtkCTreeNode *next_child;
 
+       summary_lock(summaryview);
+
        debug_print(_("Unthreading..."));
        STATUSBAR_PUSH(summaryview->mainwin, _("Unthreading..."));
        main_window_cursor_wait(summaryview->mainwin);
@@ -3352,6 +3661,8 @@ void summary_unthread(SummaryView *summaryview)
        debug_print(_("done.\n"));
        STATUSBAR_POP(summaryview->mainwin);
        main_window_cursor_normal(summaryview->mainwin);
+
+       summary_unlock(summaryview);
 }
 
 static void summary_unthread_for_exec(SummaryView *summaryview)
@@ -3359,6 +3670,8 @@ static void summary_unthread_for_exec(SummaryView *summaryview)
        GtkCTreeNode *node;
        GtkCTree *ctree = GTK_CTREE(summaryview->ctree);
 
+       summary_lock(summaryview);
+
        debug_print(_("Unthreading for execution..."));
 
        gtk_clist_freeze(GTK_CLIST(ctree));
@@ -3371,6 +3684,8 @@ static void summary_unthread_for_exec(SummaryView *summaryview)
        gtk_clist_thaw(GTK_CLIST(ctree));
 
        debug_print(_("done.\n"));
+
+       summary_unlock(summaryview);
 }
 
 static void summary_unthread_for_exec_func(GtkCTree *ctree, GtkCTreeNode *node,
@@ -3405,9 +3720,70 @@ static void summary_unthread_for_exec_func(GtkCTree *ctree, GtkCTreeNode *node,
        }
 }
 
+void summary_processing(SummaryView *summaryview, GSList * mlist)
+{
+       GSList * processing_list;
+       FolderItem * folder_item;
+       GSList * cur;
+       gchar * id;
+       gchar * buf;
+
+       folder_item = summaryview->folder_item;
+       if (folder_item == NULL)
+               return;
+
+       processing_list = folder_item->prefs->processing;
+
+       if (processing_list == NULL)
+               return;
+
+       summary_lock(summaryview);
+       
+       buf = g_strdup_printf(_("Processing (%s)..."), folder_item->path);
+       debug_print(buf);
+       STATUSBAR_PUSH(summaryview->mainwin, buf);
+       g_free(buf);
+
+       main_window_cursor_wait(summaryview->mainwin);
+
+       summaryview->folder_table = g_hash_table_new(NULL, NULL);
+
+       for(cur = mlist ; cur != NULL ; cur = cur->next) {
+               MsgInfo * msginfo;
+
+               msginfo = (MsgInfo *) cur->data;
+               filter_msginfo_move_or_delete(processing_list, msginfo,
+                                             summaryview->folder_table);
+       }
+       
+       folder_item_scan_foreach(summaryview->folder_table);
+       folderview_update_item_foreach(summaryview->folder_table);
+       
+       g_hash_table_destroy(summaryview->folder_table);
+       summaryview->folder_table = NULL;
+       
+       if (prefs_common.immediate_exec) {
+               summary_unlock(summaryview);
+               summary_execute(summaryview);
+               summary_lock(summaryview);
+       } else
+               summary_status_show(summaryview);
+
+       debug_print(_("done.\n"));
+       STATUSBAR_POP(summaryview->mainwin);
+       main_window_cursor_normal(summaryview->mainwin);
+
+       summary_unlock(summaryview);
+}
+
 void summary_filter(SummaryView *summaryview)
 {
-       if (!prefs_common.fltlist) return;
+       if (!prefs_common.fltlist && !global_processing) {
+               alertpanel_error(_("No filter rules defined."));
+               return;
+       }
+
+       summary_lock(summaryview);
 
        debug_print(_("filtering..."));
        STATUSBAR_PUSH(summaryview->mainwin, _("Filtering..."));
@@ -3415,16 +3791,18 @@ void summary_filter(SummaryView *summaryview)
 
        gtk_clist_freeze(GTK_CLIST(summaryview->ctree));
 
-       if (prefs_filtering == NULL) {
+       if (global_processing == NULL) {
                gtk_ctree_pre_recursive(GTK_CTREE(summaryview->ctree), NULL,
                                        GTK_CTREE_FUNC(summary_filter_func),
                                        summaryview);
                
                gtk_clist_thaw(GTK_CLIST(summaryview->ctree));
-
-               if (prefs_common.immediate_exec)
+               
+               if (prefs_common.immediate_exec) {
+                       summary_unlock(summaryview);
                        summary_execute(summaryview);
-               else
+                       summary_lock(summaryview);
+               } else
                        summary_status_show(summaryview);
        }
        else {
@@ -3441,13 +3819,27 @@ void summary_filter(SummaryView *summaryview)
 
                g_hash_table_destroy(summaryview->folder_table);
                summaryview->folder_table = NULL;
-
-               summary_show(summaryview, summaryview->folder_item, FALSE);
        }
 
        debug_print(_("done.\n"));
        STATUSBAR_POP(summaryview->mainwin);
        main_window_cursor_normal(summaryview->mainwin);
+
+       summary_unlock(summaryview);
+
+       /* 
+        * CLAWS: summary_show() only valid after having a lock. ideally
+        * we want the lock to be context aware...  
+        */
+       if (global_processing) {
+               /*
+                * CLAWS: to prevent summary_show to write the cache,
+                * we force an update of the summaryview in a special way,
+                * like inc.c::inc_finished().
+                */
+               folderview_unselect(summaryview->folderview);
+               folderview_select(summaryview->folderview, summaryview->folder_item);
+       }               
 }
 
 static void summary_filter_func(GtkCTree *ctree, GtkCTreeNode *node,
@@ -3458,7 +3850,7 @@ static void summary_filter_func(GtkCTree *ctree, GtkCTreeNode *node,
        gchar *file;
        FolderItem *dest;
 
-       if (prefs_filtering == NULL) {
+       if (global_processing == NULL) {
                /* old filtering */
                file = procmsg_get_message_file_path(msginfo);
                dest = filter_get_dest_folder(prefs_common.fltlist, file);
@@ -3468,45 +3860,207 @@ static void summary_filter_func(GtkCTree *ctree, GtkCTreeNode *node,
                    summaryview->folder_item != dest)
                        summary_move_row_to(summaryview, node, dest);
        }
-       else
-               filter_msginfo_move_or_delete(prefs_filtering, msginfo,
+       else 
+               filter_msginfo_move_or_delete(global_processing, msginfo,
                                              summaryview->folder_table);
 }
 
-/* color label */
+void summary_filter_open(SummaryView *summaryview, PrefsFilterType type)
+{
+       static HeaderEntry hentry[] = {{"List-Id:",        NULL, FALSE},
+                                      {"X-ML-Name:",      NULL, FALSE},
+                                      {"X-List:",         NULL, FALSE},
+                                      {"X-Mailing-list:", NULL, FALSE},
+                                      {NULL,              NULL, FALSE}};
+       enum
+       {
+               H_LIST_ID        = 0,
+               H_X_ML_NAME      = 1,
+               H_X_LIST         = 2,
+               H_X_MAILING_LIST = 3
+       };
 
-#define N_COLOR_LABELS colorlabel_get_color_count()
+       MsgInfo *msginfo;
+       gchar *header = NULL;
+       gchar *key = NULL;
+       FILE *fp;
 
-static void summary_colorlabel_menu_item_activate_cb(GtkWidget *widget,
-                                                    gpointer data)
-{
-       guint color = GPOINTER_TO_UINT(data);
-       SummaryView *summaryview;
+       if (!summaryview->selected) return;
 
-       summaryview = gtk_object_get_data(GTK_OBJECT(widget), "summaryview");
-       g_return_if_fail(summaryview != NULL);
+       msginfo = gtk_ctree_node_get_row_data(GTK_CTREE(summaryview->ctree),
+                                             summaryview->selected);
+       if (!msginfo) return;
 
-       /* "dont_toggle" state set? */
-       if (gtk_object_get_data(GTK_OBJECT(summaryview->colorlabel_menu),
-                               "dont_toggle"))
-               return;
+       switch (type) {
+       case FILTER_BY_NONE:
+               break;
+       case FILTER_BY_AUTO:
+               if ((fp = procmsg_open_message(msginfo)) == NULL) return;
+               procheader_get_header_fields(fp, hentry);
+               fclose(fp);
+
+               if (hentry[H_LIST_ID].body != NULL) {
+                       header = "List-Id";
+                       Xstrdup_a(key, hentry[H_LIST_ID].body, );
+               } else if (hentry[H_X_ML_NAME].body != NULL) {
+                       header = "X-ML-Name";
+                       Xstrdup_a(key, hentry[H_X_ML_NAME].body, );
+               } else if (hentry[H_X_LIST].body != NULL) {
+                       header = "X-List";
+                       Xstrdup_a(key, hentry[H_X_LIST].body, );
+               } else if (hentry[H_X_MAILING_LIST].body != NULL) {
+                       header = "X-Mailing-list";
+                       Xstrdup_a(key, hentry[H_X_MAILING_LIST].body, );
+               } else if (msginfo->subject) {
+                       header = "Subject";
+                       key = msginfo->subject;
+               }
 
-       summary_set_colorlabel(summaryview, color, NULL);
+               g_free(hentry[H_LIST_ID].body);
+               hentry[H_LIST_ID].body = NULL;
+               g_free(hentry[H_X_ML_NAME].body);
+               hentry[H_X_ML_NAME].body = NULL;
+               g_free(hentry[H_X_LIST].body);
+               hentry[H_X_LIST].body = NULL;
+               g_free(hentry[H_X_MAILING_LIST].body);
+               hentry[H_X_MAILING_LIST].body = NULL;
+
+               break;
+       case FILTER_BY_FROM:
+               header = "From";
+               key = msginfo->from;
+               break;
+       case FILTER_BY_TO:
+               header = "To";
+               key = msginfo->to;
+               break;
+       case FILTER_BY_SUBJECT:
+               header = "Subject";
+               key = msginfo->subject;
+               break;
+       default:
+               break;
+       }
+
+       prefs_filter_open(header, key);
 }
 
-/* summary_set_colorlabel_color() - labelcolor parameter is the color *flag*
- * for the messsage; not the color index */
-void summary_set_colorlabel_color(GtkCTree *ctree, GtkCTreeNode *node,
-                                 guint labelcolor)
+void summary_reply(SummaryView *summaryview, ComposeMode mode)
 {
-       GdkColor color;
-       GtkStyle *style, *prev_style, *ctree_style;
+       GtkWidget *widget;
        MsgInfo *msginfo;
-       gint color_index;
+       GList  *sel = GTK_CLIST(summaryview->ctree)->selection;
 
-       msginfo = gtk_ctree_node_get_row_data(ctree, node);
-       MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_CLABEL_FLAG_MASK);
-       MSG_SET_COLORLABEL_VALUE(msginfo->flags, labelcolor);
+       msginfo = gtk_ctree_node_get_row_data(GTK_CTREE(summaryview->ctree),
+                                             summaryview->selected);
+       if (!msginfo) return;
+
+       switch (mode) {
+       case COMPOSE_REPLY:
+               compose_reply(msginfo, prefs_common.reply_with_quote,
+                             FALSE, FALSE);
+               break;
+       case COMPOSE_REPLY_WITH_QUOTE:
+               compose_reply(msginfo, TRUE, FALSE, FALSE);
+               break;
+       case COMPOSE_REPLY_WITHOUT_QUOTE:
+               compose_reply(msginfo, FALSE, FALSE, FALSE);
+               break;
+       case COMPOSE_REPLY_TO_SENDER:
+               compose_reply(msginfo, prefs_common.reply_with_quote,
+                             FALSE, TRUE);
+               break;
+       case COMPOSE_FOLLOWUP_AND_REPLY_TO:
+               compose_followup_and_reply_to(msginfo,
+                                             prefs_common.reply_with_quote,
+                                             FALSE, TRUE);
+               break;
+       case COMPOSE_REPLY_TO_SENDER_WITH_QUOTE:
+               compose_reply(msginfo, TRUE, FALSE, TRUE);
+               break;
+       case COMPOSE_REPLY_TO_SENDER_WITHOUT_QUOTE:
+               compose_reply(msginfo, FALSE, FALSE, TRUE);
+               break;
+       case COMPOSE_REPLY_TO_ALL:
+               compose_reply(msginfo, prefs_common.reply_with_quote,
+                             TRUE, TRUE);
+               break;
+       case COMPOSE_REPLY_TO_ALL_WITH_QUOTE:
+               compose_reply(msginfo, TRUE, TRUE, FALSE);
+               break;
+       case COMPOSE_REPLY_TO_ALL_WITHOUT_QUOTE:
+               compose_reply(msginfo, FALSE, TRUE, FALSE);
+               break;
+       case COMPOSE_FORWARD:
+               if (prefs_common.forward_as_attachment) {
+                       summary_reply_cb(summaryview, COMPOSE_FORWARD_AS_ATTACH, widget);
+                       return;
+               } else {
+                       summary_reply_cb(summaryview, COMPOSE_FORWARD_INLINE, widget);
+                       return;
+               }
+               break;
+       case COMPOSE_FORWARD_INLINE:
+               if (!sel->next) {
+                       compose_forward(NULL, msginfo, FALSE);
+                       break;
+               }
+               /* if (sel->next) FALL THROUGH */
+       case COMPOSE_FORWARD_AS_ATTACH:
+               {
+                       GSList *msginfo_list = NULL;
+                       for ( ; sel != NULL; sel = sel->next)
+                               msginfo_list = g_slist_append(msginfo_list, 
+                                       gtk_ctree_node_get_row_data(GTK_CTREE(summaryview->ctree),
+                                               GTK_CTREE_NODE(sel->data)));
+                       compose_forward_multiple(NULL, msginfo_list);
+                       g_slist_free(msginfo_list);
+               }                       
+               break;
+       case COMPOSE_BOUNCE:
+               compose_bounce(NULL, msginfo);
+               break;
+       default:
+               g_warning("summary_reply_cb(): invalid action: %d\n", mode);
+       }
+
+       summary_set_marks_selected(summaryview);
+}
+
+/* color label */
+
+#define N_COLOR_LABELS colorlabel_get_color_count()
+
+static void summary_colorlabel_menu_item_activate_cb(GtkWidget *widget,
+                                                    gpointer data)
+{
+       guint color = GPOINTER_TO_UINT(data);
+       SummaryView *summaryview;
+
+       summaryview = gtk_object_get_data(GTK_OBJECT(widget), "summaryview");
+       g_return_if_fail(summaryview != NULL);
+
+       /* "dont_toggle" state set? */
+       if (gtk_object_get_data(GTK_OBJECT(summaryview->colorlabel_menu),
+                               "dont_toggle"))
+               return;
+
+       summary_set_colorlabel(summaryview, color, NULL);
+}
+
+/* summary_set_colorlabel_color() - labelcolor parameter is the color *flag*
+ * for the messsage; not the color index */
+void summary_set_colorlabel_color(GtkCTree *ctree, GtkCTreeNode *node,
+                                 guint labelcolor)
+{
+       GdkColor color;
+       GtkStyle *style, *prev_style, *ctree_style;
+       MsgInfo *msginfo;
+       gint color_index;
+
+       msginfo = gtk_ctree_node_get_row_data(ctree, node);
+       MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_CLABEL_FLAG_MASK);
+       MSG_SET_COLORLABEL_VALUE(msginfo->flags, labelcolor);
 
        color_index = labelcolor == 0 ? -1 : (gint)labelcolor - 1;
        ctree_style = gtk_widget_get_style(GTK_WIDGET(ctree));
@@ -3620,7 +4174,6 @@ static void summary_colorlabel_menu_create(SummaryView *summaryview)
        gtk_signal_connect(GTK_OBJECT(label_menuitem), "activate",
                           GTK_SIGNAL_FUNC(summary_colorlabel_menu_item_activate_item_cb),
                           summaryview);
-
        gtk_widget_show(label_menuitem);
 
        menu = gtk_menu_new();
@@ -3659,14 +4212,183 @@ static void summary_colorlabel_menu_create(SummaryView *summaryview)
        summaryview->colorlabel_menu = menu;
 }
 
-/* callback functions */
+static GtkWidget *summary_ctree_create(SummaryView *summaryview)
+{
+       GtkWidget *ctree;
+       gint *col_pos = summaryview->col_pos;
+       SummaryColumnState *col_state;
+       gchar *titles[N_SUMMARY_COLS];
+       SummaryColumnType type;
+       gint pos;
 
-static void summary_toggle_pressed(GtkWidget *eventbox, GdkEventButton *event,
-                                  SummaryView *summaryview)
+       memset(titles, 0, sizeof(titles));
+
+       col_state = prefs_summary_column_get_config();
+       for (pos = 0; pos < N_SUMMARY_COLS; pos++) {
+               summaryview->col_state[pos] = col_state[pos];
+               type = col_state[pos].type;
+               col_pos[type] = pos;
+       }
+       col_state = summaryview->col_state;
+
+       ctree = gtk_sctree_new_with_titles
+               (N_SUMMARY_COLS, col_pos[S_COL_SUBJECT], titles);
+
+       gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_EXTENDED);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_MARK],
+                                          GTK_JUSTIFY_CENTER);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_UNREAD],
+                                          GTK_JUSTIFY_CENTER);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_LOCKED],
+                                          GTK_JUSTIFY_CENTER);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_MIME],
+                                          GTK_JUSTIFY_CENTER);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_SIZE],
+                                          GTK_JUSTIFY_RIGHT);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_NUMBER],
+                                          GTK_JUSTIFY_RIGHT);
+       gtk_clist_set_column_justification(GTK_CLIST(ctree), col_pos[S_COL_SCORE],
+                                          GTK_JUSTIFY_RIGHT);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_MARK],
+                                  SUMMARY_COL_MARK_WIDTH);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_UNREAD],
+                                  SUMMARY_COL_UNREAD_WIDTH);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_LOCKED],
+                                  SUMMARY_COL_LOCKED_WIDTH);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_MIME],
+                                  SUMMARY_COL_MIME_WIDTH);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_SUBJECT],
+                                  prefs_common.summary_col_size[S_COL_SUBJECT]);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_FROM],
+                                  prefs_common.summary_col_size[S_COL_FROM]);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_DATE],
+                                  prefs_common.summary_col_size[S_COL_DATE]);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_SIZE],
+                                  prefs_common.summary_col_size[S_COL_SIZE]);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_NUMBER],
+                                  prefs_common.summary_col_size[S_COL_NUMBER]);
+       gtk_clist_set_column_width(GTK_CLIST(ctree), col_pos[S_COL_SCORE],
+                                  prefs_common.summary_col_size[S_COL_SCORE]);
+       gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
+       gtk_ctree_set_expander_style(GTK_CTREE(ctree),
+                                    GTK_CTREE_EXPANDER_SQUARE);
+#if 0
+       gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_NONE);
+       gtk_ctree_set_expander_style(GTK_CTREE(ctree),
+                                    GTK_CTREE_EXPANDER_TRIANGLE);
+#endif
+       gtk_ctree_set_indent(GTK_CTREE(ctree), 16);
+       gtk_object_set_user_data(GTK_OBJECT(ctree), summaryview);
+
+       for (pos = 0; pos < N_SUMMARY_COLS; pos++) {
+               GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[pos].button,
+                                      GTK_CAN_FOCUS);
+               gtk_clist_set_column_visibility
+                       (GTK_CLIST(ctree), pos, col_state[pos].visible);
+       }
+
+       /* connect signal to the buttons for sorting */
+#define CLIST_BUTTON_SIGNAL_CONNECT(col, func) \
+       gtk_signal_connect \
+               (GTK_OBJECT(GTK_CLIST(ctree)->column[col_pos[col]].button), \
+                "clicked", \
+                GTK_SIGNAL_FUNC(func), \
+                summaryview)
+
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_MARK   , summary_mark_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_UNREAD , summary_unread_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_MIME   , summary_mime_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_NUMBER , summary_num_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_SIZE   , summary_size_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_DATE   , summary_date_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_FROM   , summary_from_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_SUBJECT, summary_subject_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_SCORE,   summary_score_clicked);
+       CLIST_BUTTON_SIGNAL_CONNECT(S_COL_LOCKED,  summary_locked_clicked);
+
+#undef CLIST_BUTTON_SIGNAL_CONNECT
+
+       gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
+                          GTK_SIGNAL_FUNC(summary_selected), summaryview);
+       gtk_signal_connect(GTK_OBJECT(ctree), "button_press_event",
+                          GTK_SIGNAL_FUNC(summary_button_pressed),
+                          summaryview);
+       gtk_signal_connect(GTK_OBJECT(ctree), "button_release_event",
+                          GTK_SIGNAL_FUNC(summary_button_released),
+                          summaryview);
+       gtk_signal_connect(GTK_OBJECT(ctree), "key_press_event",
+                          GTK_SIGNAL_FUNC(summary_key_pressed), summaryview);
+       gtk_signal_connect(GTK_OBJECT(ctree), "resize_column",
+                          GTK_SIGNAL_FUNC(summary_col_resized), summaryview);
+        gtk_signal_connect(GTK_OBJECT(ctree), "open_row",
+                          GTK_SIGNAL_FUNC(summary_open_row), summaryview);
+
+       gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_expand",
+                                GTK_SIGNAL_FUNC(summary_tree_expanded),
+                                summaryview);
+       gtk_signal_connect_after(GTK_OBJECT(ctree), "tree_collapse",
+                                GTK_SIGNAL_FUNC(summary_tree_collapsed),
+                                summaryview);
+
+       gtk_signal_connect(GTK_OBJECT(ctree), "start_drag",
+                          GTK_SIGNAL_FUNC(summary_start_drag),
+                          summaryview);
+       gtk_signal_connect(GTK_OBJECT(ctree), "drag_data_get",
+                          GTK_SIGNAL_FUNC(summary_drag_data_get),
+                          summaryview);
+
+       return ctree;
+}
+
+void summary_set_column_order(SummaryView *summaryview)
 {
-       if (!event)
-               return;
+       GtkWidget *ctree;
+       GtkWidget *scrolledwin = summaryview->scrolledwin;
+       GtkWidget *pixmap;
+       FolderItem *item;
+       guint selected_msgnum = summary_get_msgnum(summaryview, summaryview->selected);
+       guint displayed_msgnum = summary_get_msgnum(summaryview, summaryview->displayed);
+
+       
+       item = summaryview->folder_item;
+
+       summary_lock(summaryview);
+       summary_write_cache(summaryview);
+       summary_unlock(summaryview);
+       
+       summary_clear_all(summaryview);
+       gtk_widget_destroy(summaryview->ctree);
 
+       summaryview->ctree = ctree = summary_ctree_create(summaryview);
+       pixmap = gtk_pixmap_new(clipxpm, clipxpmmask);
+       gtk_clist_set_column_widget(GTK_CLIST(ctree),
+                                   summaryview->col_pos[S_COL_MIME], pixmap);
+       gtk_widget_show(pixmap);
+       gtk_scrolled_window_set_hadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
+                                           GTK_CLIST(ctree)->hadjustment);
+       gtk_scrolled_window_set_vadjustment(GTK_SCROLLED_WINDOW(scrolledwin),
+                                           GTK_CLIST(ctree)->vadjustment);
+       gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
+       gtk_widget_show(ctree);
+
+       summary_show(summaryview, item, FALSE);
+
+       summary_select_by_msgnum(summaryview, selected_msgnum);
+       summaryview->displayed = summary_find_msg_by_msgnum(summaryview, displayed_msgnum);
+       if (!summaryview->displayed)
+               messageview_clear(summaryview->messageview);
+       else
+               summary_redisplay_msg(summaryview);
+}
+
+
+/* callback functions */
+
+static void summary_toggle_view_cb(GtkWidget *button,
+                                  gpointer data)
+{
+       SummaryView *summaryview = (SummaryView *) data;
+       
        if (!summaryview->msg_is_toggled_on && summaryview->selected)
                summary_display_msg(summaryview, summaryview->selected, FALSE);
        else
@@ -3679,8 +4401,7 @@ static void summary_button_pressed(GtkWidget *ctree, GdkEventButton *event,
        if (!event) return;
 
        if (event->button == 3) {
-               /* Right button clicked */
-               /* summary_set_add_sender_menu(summaryview); */
+               /* right clicked */
                gtk_menu_popup(GTK_MENU(summaryview->popupmenu), NULL, NULL,
                               NULL, NULL, event->button, event->time);
        } else if (event->button == 2) {
@@ -3708,68 +4429,16 @@ void summary_pass_key_press_event(SummaryView *summaryview, GdkEventKey *event)
 #define RETURN_IF_LOCKED() \
        if (summaryview->mainwin->lock_count) return
 
-#define KEY_PRESS_EVENT_STOP() \
-       if (gtk_signal_n_emissions_by_name \
-               (GTK_OBJECT(ctree), "key_press_event") > 0) { \
-               gtk_signal_emit_stop_by_name(GTK_OBJECT(ctree), \
-                                            "key_press_event"); \
-       }
-
 static void summary_key_pressed(GtkWidget *widget, GdkEventKey *event,
                                SummaryView *summaryview)
 {
        GtkCTree *ctree = GTK_CTREE(widget);
        GtkCTreeNode *node;
-       FolderItem *to_folder;
 
+       if (summary_is_locked(summaryview)) return;
        if (!event) return;
 
        switch (event->keyval) {
-       case GDK_g:             /* Go */
-       case GDK_G:
-               RETURN_IF_LOCKED();
-               BREAK_ON_MODIFIER_KEY();
-               KEY_PRESS_EVENT_STOP();
-               to_folder = foldersel_folder_sel(NULL, NULL);
-               if (to_folder) {
-                       debug_print(_("Go to %s\n"), to_folder->path);
-                       folderview_select(summaryview->folderview, to_folder);
-               }
-               return;
-       case GDK_w:             /* Write new message */
-               BREAK_ON_MODIFIER_KEY();
-               if (summaryview->folder_item) {
-                       PrefsAccount *ac;
-                       ac = summaryview->folder_item->folder->account;
-                       if (ac && ac->protocol == A_NNTP)
-                               compose_new_with_recipient
-                                       (ac, summaryview->folder_item->path);
-                       else
-                               compose_new_with_folderitem(ac, summaryview->folder_item);
-               } else
-                       compose_new(NULL);
-               return;
-       case GDK_D:             /* Empty trash */
-               RETURN_IF_LOCKED();
-               BREAK_ON_MODIFIER_KEY();
-               KEY_PRESS_EVENT_STOP();
-               main_window_empty_trash(summaryview->mainwin, TRUE);
-               return;
-       case GDK_Q:             /* Quit */
-               RETURN_IF_LOCKED();
-               BREAK_ON_MODIFIER_KEY();
-
-               if (prefs_common.confirm_on_exit) {
-                       if (alertpanel(_("Exit"), _("Exit this program?"),
-                                      _("OK"), _("Cancel"), NULL)
-                                      == G_ALERTDEFAULT) {
-                               manage_window_focus_in
-                                       (summaryview->mainwin->window,
-                                        NULL, NULL);
-                               app_will_exit(NULL, summaryview->mainwin);
-                       }
-               }
-               return;
        case GDK_Left:          /* Move focus */
        case GDK_Escape:
                gtk_widget_grab_focus(summaryview->folderview->ctree);
@@ -3797,30 +4466,9 @@ static void summary_key_pressed(GtkWidget *widget, GdkEventKey *event,
                                          FALSE))
                        summary_select_next_unread(summaryview);
                break;
-       case GDK_n:             /* Next */
-       case GDK_N:
-               BREAK_ON_MODIFIER_KEY();
-               summary_step(summaryview, GTK_SCROLL_STEP_FORWARD);
-               break;
        case GDK_BackSpace:     /* Page up */
-       case GDK_Delete:
                textview_scroll_page(summaryview->messageview->textview, TRUE);
                break;
-       case GDK_p:             /* Prev */
-       case GDK_P:
-               BREAK_ON_MODIFIER_KEY();
-               summary_step(summaryview, GTK_SCROLL_STEP_BACKWARD);
-               break;
-       case GDK_v:             /* Toggle summary mode / message mode */
-       case GDK_V:
-               BREAK_ON_MODIFIER_KEY();
-
-               if (!summaryview->msg_is_toggled_on && summaryview->selected)
-                       summary_display_msg(summaryview,
-                                           summaryview->selected, FALSE);
-               else
-                       summary_toggle_view(summaryview);
-               break;
        case GDK_Return:        /* Scroll up/down one line */
                if (summaryview->displayed != summaryview->selected) {
                        summary_display_msg(summaryview,
@@ -3830,75 +4478,21 @@ static void summary_key_pressed(GtkWidget *widget, GdkEventKey *event,
                textview_scroll_one_line(summaryview->messageview->textview,
                                         (event->state & GDK_MOD1_MASK) != 0);
                break;
-       case GDK_asterisk:      /* Mark */
-               summary_mark(summaryview);
-               break;
-       case GDK_exclam:        /* Mark as unread */
-               summary_mark_as_unread(summaryview);
-               break;
-       case GDK_d:             /* Delete */
+       case GDK_Delete:
                RETURN_IF_LOCKED();
                BREAK_ON_MODIFIER_KEY();
                summary_delete(summaryview);
                break;
-       case GDK_u:             /* Unmark */
-       case GDK_U:
-               BREAK_ON_MODIFIER_KEY();
-               summary_unmark(summaryview);
-               break;
-       case GDK_o:             /* Move */
-               RETURN_IF_LOCKED();
-               BREAK_ON_MODIFIER_KEY();
-               summary_move_to(summaryview);
-               break;
-       case GDK_O:             /* Copy */
-               RETURN_IF_LOCKED();
-               BREAK_ON_MODIFIER_KEY();
-               summary_copy_to(summaryview);
-               break;
-       case GDK_x:             /* Execute */
-       case GDK_X:
-               RETURN_IF_LOCKED();
-               BREAK_ON_MODIFIER_KEY();
-               KEY_PRESS_EVENT_STOP();
-               summary_execute(summaryview);
-               break;
-       case GDK_a:             /* Reply to the message */
-               BREAK_ON_MODIFIER_KEY();
-               summary_reply_cb(summaryview,
-                                COMPOSE_REPLY_TO_ALL_WITHOUT_QUOTE, NULL);
-               break;
-       case GDK_A:             /* Reply to the message with quotation */
-               BREAK_ON_MODIFIER_KEY();
-               summary_reply_cb(summaryview,
-                                COMPOSE_REPLY_TO_ALL_WITH_QUOTE, NULL);
-               break;
-       case GDK_f:             /* Forward the message */
-               BREAK_ON_MODIFIER_KEY();
-               summary_reply_cb(summaryview, COMPOSE_FORWARD, NULL);
-               break;
-       case GDK_F:
-               BREAK_ON_MODIFIER_KEY();
-               summary_reply_cb(summaryview, COMPOSE_FORWARD_AS_ATTACH, NULL);
-               break;
-       case GDK_y:             /* Save the message */
-               BREAK_ON_MODIFIER_KEY();
-               summary_save_as(summaryview);
-               break;
        default:
                break;
        }
 }
 
-#undef BREAK_ON_MODIFIER_KEY
-#undef RETURN_IF_LOCKED
-#undef KEY_PRESS_EVENT_STOP
-
 static void summary_open_row(GtkSCTree *sctree, SummaryView *summaryview)
 {
-       if (summaryview->folder_item->stype == F_DRAFT  ||
-           summaryview->folder_item->stype == F_OUTBOX ||
-            summaryview->folder_item->stype == F_QUEUE)
+       if (summaryview->folder_item->stype == F_OUTBOX ||
+           summaryview->folder_item->stype == F_DRAFT  ||
+           summaryview->folder_item->stype == F_QUEUE)
                summary_reedit(summaryview);
        else
                summary_open_msg(summaryview);
@@ -3925,6 +4519,7 @@ static void summary_selected(GtkCTree *ctree, GtkCTreeNode *row,
 
        summary_status_show(summaryview);
        summary_set_menu_sensitive(summaryview);
+       main_window_set_toolbar_sensitive(summaryview->mainwin);
 
        if (GTK_CLIST(ctree)->selection &&
             GTK_CLIST(ctree)->selection->next) {
@@ -3936,10 +4531,12 @@ static void summary_selected(GtkCTree *ctree, GtkCTreeNode *row,
 
        msginfo = gtk_ctree_node_get_row_data(ctree, row);
 
-       switch (column) {
+       switch (column < 0 ? column : summaryview->col_state[column].type) {
        case S_COL_MARK:
                if (MSG_IS_MARKED(msginfo->flags)) {
                        MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_MARKED);
+                       if (MSG_IS_IMAP(msginfo->flags))
+                               imap_msg_unset_perm_flags(msginfo, MSG_MARKED);
                        CHANGE_FLAGS(msginfo);
                        summary_set_row_marks(summaryview, row);
                } else
@@ -3955,6 +4552,15 @@ static void summary_selected(GtkCTree *ctree, GtkCTreeNode *row,
                        summary_status_show(summaryview);
                }
                break;
+       case S_COL_LOCKED:
+               if (MSG_IS_LOCKED(msginfo->flags)) {
+                       MSG_UNSET_PERM_FLAGS(msginfo->flags, MSG_LOCKED);
+                       CHANGE_FLAGS(msginfo);
+                       summary_set_row_marks(summaryview, row);
+               }
+               else
+                       summary_lock_row(summaryview, row);
+               break;
        default:
                break;
        }
@@ -3968,107 +4574,21 @@ static void summary_selected(GtkCTree *ctree, GtkCTreeNode *row,
 static void summary_col_resized(GtkCList *clist, gint column, gint width,
                                SummaryView *summaryview)
 {
-       switch (column) {
-       case S_COL_MARK:
-               prefs_common.summary_col_mark = width;
-               break;
-       case S_COL_UNREAD:
-               prefs_common.summary_col_unread = width;
-               break;
-       case S_COL_MIME:
-               prefs_common.summary_col_mime = width;
-               break;
-       case S_COL_NUMBER:
-               prefs_common.summary_col_number = width;
-               break;
-       case S_COL_SCORE:
-               prefs_common.summary_col_score = width;
-               break;
-       case S_COL_SIZE:
-               prefs_common.summary_col_size = width;
-               break;
-       case S_COL_DATE:
-               prefs_common.summary_col_date = width;
-               break;
-       case S_COL_FROM:
-               prefs_common.summary_col_from = width;
-               break;
-       case S_COL_SUBJECT:
-               prefs_common.summary_col_subject = width;
-               break;
-       default:
-               break;
-       }
+       SummaryColumnType type = summaryview->col_state[column].type;
+
+       prefs_common.summary_col_size[type] = width;
 }
 
 static void summary_reply_cb(SummaryView *summaryview, guint action,
                             GtkWidget *widget)
 {
-       MsgInfo *msginfo;
-       GList  *sel = GTK_CLIST(summaryview->ctree)->selection;
-
-       msginfo = gtk_ctree_node_get_row_data(GTK_CTREE(summaryview->ctree),
-                                             summaryview->selected);
-       if (!msginfo) return;
-
-       switch ((ComposeMode)action) {
-       case COMPOSE_REPLY:
-               compose_reply(msginfo, prefs_common.reply_with_quote,
-                             FALSE, FALSE);
-               break;
-       case COMPOSE_REPLY_WITH_QUOTE:
-               compose_reply(msginfo, TRUE, FALSE, FALSE);
-               break;
-       case COMPOSE_REPLY_WITHOUT_QUOTE:
-               compose_reply(msginfo, FALSE, FALSE, FALSE);
-               break;
-       case COMPOSE_REPLY_TO_SENDER:
-               compose_reply(msginfo, prefs_common.reply_with_quote,
-                             FALSE, TRUE);
-               break;
-       case COMPOSE_FOLLOWUP_AND_REPLY_TO:
-               compose_followup_and_reply_to(msginfo,
-                                             prefs_common.reply_with_quote,
-                                             FALSE, TRUE);
-               break;
-       case COMPOSE_REPLY_TO_SENDER_WITH_QUOTE:
-               compose_reply(msginfo, TRUE, FALSE, TRUE);
-               break;
-       case COMPOSE_REPLY_TO_SENDER_WITHOUT_QUOTE:
-               compose_reply(msginfo, FALSE, FALSE, TRUE);
-               break;
-       case COMPOSE_REPLY_TO_ALL:
-               compose_reply(msginfo, prefs_common.reply_with_quote,
-                             TRUE, FALSE);
-               break;
-       case COMPOSE_REPLY_TO_ALL_WITH_QUOTE:
-               compose_reply(msginfo, TRUE, TRUE, FALSE);
-               break;
-       case COMPOSE_REPLY_TO_ALL_WITHOUT_QUOTE:
-               compose_reply(msginfo, FALSE, TRUE, FALSE);
-               break;
-       case COMPOSE_FORWARD:
-               if (!sel->next) {
-                       compose_forward(NULL, msginfo, FALSE);
-                       break;
-               }
-               /* if (sel->next) FALL THROUGH */
-       case COMPOSE_FORWARD_AS_ATTACH:
-               {
-                       GSList *msginfo_list = NULL;
-                       for ( ; sel != NULL; sel = sel->next)
-                               msginfo_list = g_slist_append(msginfo_list, 
-                                       gtk_ctree_node_get_row_data(GTK_CTREE(summaryview->ctree),
-                                               GTK_CTREE_NODE(sel->data)));
-                       compose_forward_multiple(NULL, msginfo_list);
-                       g_slist_free(msginfo_list);
-               }                       
-               break;
-       default:
-               g_warning("summary_reply_cb(): invalid action: %d\n", action);
-       }
+       summary_reply(summaryview, (ComposeMode)action);
+}
 
-       summary_set_marks_selected(summaryview);
+static void summary_execute_cb(SummaryView *summaryview, guint action,
+                              GtkWidget *widget)
+{
+       summary_execute(summaryview);
 }
 
 static void summary_show_all_header_cb(SummaryView *summaryview,
@@ -4109,6 +4629,12 @@ static void summary_score_clicked(GtkWidget *button,
        summary_sort(summaryview, SORT_BY_SCORE);
 }
 
+static void summary_locked_clicked(GtkWidget *button,
+                                 SummaryView *summaryview)
+{
+       summary_sort(summaryview, SORT_BY_LOCKED);
+}
+
 static void summary_size_clicked(GtkWidget *button, SummaryView *summaryview)
 {
        summary_sort(summaryview, SORT_BY_SIZE);
@@ -4130,21 +4656,6 @@ static void summary_subject_clicked(GtkWidget *button,
        summary_sort(summaryview, SORT_BY_SUBJECT);
 }
 
-void summary_change_display_item(SummaryView *summaryview)
-{
-       GtkCList *clist = GTK_CLIST(summaryview->ctree);
-
-       gtk_clist_set_column_visibility(clist, S_COL_MARK, prefs_common.show_mark);
-       gtk_clist_set_column_visibility(clist, S_COL_UNREAD, prefs_common.show_unread);
-       gtk_clist_set_column_visibility(clist, S_COL_MIME, prefs_common.show_mime);
-       gtk_clist_set_column_visibility(clist, S_COL_NUMBER, prefs_common.show_number);
-       gtk_clist_set_column_visibility(clist, S_COL_SCORE, prefs_common.show_score);
-       gtk_clist_set_column_visibility(clist, S_COL_SIZE, prefs_common.show_size);
-       gtk_clist_set_column_visibility(clist, S_COL_DATE, prefs_common.show_date);
-       gtk_clist_set_column_visibility(clist, S_COL_FROM, prefs_common.show_from);
-       gtk_clist_set_column_visibility(clist, S_COL_SUBJECT, prefs_common.show_subject);
-}
-
 static void summary_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
                               SummaryView *summaryview)
 {
@@ -4161,7 +4672,7 @@ static void summary_start_drag(GtkWidget *widget, gint button, GdkEvent *event,
        list = gtk_target_list_new(summary_drag_types, 1);
 
        context = gtk_drag_begin(widget, list,
-                                GDK_ACTION_MOVE, button, event);
+                                GDK_ACTION_MOVE|GDK_ACTION_COPY|GDK_ACTION_DEFAULT, button, event);
        gtk_drag_set_icon_default(context);
 }
 
@@ -4321,6 +4832,15 @@ static gint summary_cmp_by_score(GtkCList *clist,
                return summary_cmp_by_date(clist, ptr1, ptr2);
 }
 
+static gint summary_cmp_by_locked(GtkCList *clist,
+                                 gconstpointer ptr1, gconstpointer ptr2)
+{
+       MsgInfo *msginfo1 = ((GtkCListRow *)ptr1)->data;
+       MsgInfo *msginfo2 = ((GtkCListRow *)ptr2)->data;
+
+       return MSG_IS_LOCKED(msginfo1->flags) - MSG_IS_LOCKED(msginfo2->flags);
+}
+
 static void summary_ignore_thread_func(GtkCTree *ctree, GtkCTreeNode *row, gpointer data)
 {
        SummaryView *summaryview = (SummaryView *) data;
@@ -4382,6 +4902,121 @@ static void summary_unignore_thread(SummaryView *summaryview)
 
        summary_status_show(summaryview);
 }
+
+
+static gboolean processing_apply_func(GNode *node, gpointer data)
+{
+       FolderItem *item;
+       GSList * processing;
+       SummaryView * summaryview = (SummaryView *) data;
+       
+       if (node == NULL)
+               return FALSE;
+
+       item = node->data;
+       /* prevent from the warning */
+       if (item->path == NULL)
+               return FALSE;
+       processing = item->prefs->processing;
+
+       if (processing != NULL) {
+               gchar * buf;
+               GSList * mlist;
+               GSList * cur;
+
+               buf = g_strdup_printf(_("Processing (%s)..."), item->path);
+               debug_print(buf);
+               STATUSBAR_PUSH(summaryview->mainwin, buf);
+               g_free(buf);
+
+               mlist = item->folder->get_msg_list(item->folder, item,
+                                                  TRUE);
+               
+               for(cur = mlist ; cur != NULL ; cur = cur->next) {
+                       MsgInfo * msginfo;
+                       
+                       msginfo = (MsgInfo *) cur->data;
+                       filter_msginfo_move_or_delete(processing, msginfo,
+                                                     NULL);
+                       procmsg_msginfo_free(msginfo);
+               }
+
+               g_slist_free(mlist);
+               
+               STATUSBAR_POP(summaryview->mainwin);
+       }
+
+
+       return FALSE;
+}
+
+void processing_apply(SummaryView * summaryview)
+{
+       GList * cur;
+
+       for (cur = folder_get_list() ; cur != NULL ; cur = g_list_next(cur)) {
+               Folder *folder;
+
+               folder = (Folder *) cur->data;
+               g_node_traverse(folder->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
+                               processing_apply_func, summaryview);
+       }
+}
+
+void summary_toggle_show_read_messages(SummaryView *summaryview)
+{
+       if (summaryview->folder_item->hide_read_msgs)
+               summaryview->folder_item->hide_read_msgs = 0;
+       else
+               summaryview->folder_item->hide_read_msgs = 1;
+       summary_show(summaryview, summaryview->folder_item, FALSE);
+}
+static void summary_set_hide_read_msgs_menu (SummaryView *summaryview,
+                                            guint action)
+{
+       GtkWidget *widget;
+       widget = gtk_item_factory_get_item(gtk_item_factory_from_widget(summaryview->mainwin->menubar),
+                                          "/View/Hide read messages");
+       gtk_object_set_data(GTK_OBJECT(widget), "dont_toggle",
+                           GINT_TO_POINTER(1));
+       gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM(widget), action);
+       gtk_object_set_data(GTK_OBJECT(widget), "dont_toggle",
+                           GINT_TO_POINTER(0));
+}
+static void summaryview_subject_filter_init(PrefsFolderItem *prefs)
+{
+       int err;
+       gchar buf[BUFFSIZE];
+       if (prefs->enable_simplify_subject) {
+               if (prefs->simplify_subject_regexp && 
+                               *prefs->simplify_subject_regexp != 0x00) {
+
+                       if (!prefs->simplify_subject_preg) 
+                               prefs->simplify_subject_preg = g_new(regex_t, 1);
+                       else
+                               regfree(prefs->simplify_subject_preg);
+
+                       err = string_match_precompile(prefs->simplify_subject_regexp, 
+                                       prefs->simplify_subject_preg, REG_EXTENDED);
+                       if (err) {
+                               regerror(err, prefs->simplify_subject_preg, buf, BUFFSIZE);
+                               alertpanel_error(_("Regular expression (regexp) error:\n%s"), buf);
+                               g_free(prefs->simplify_subject_preg);
+                               prefs->simplify_subject_preg = NULL;
+                       }
+               } else {
+                       if (prefs->simplify_subject_preg) {
+                               regfree(prefs->simplify_subject_preg);
+                               g_free(prefs->simplify_subject_preg);
+                               prefs->simplify_subject_preg = NULL;
+                       }
+               }
+       }
+}
+
+
 /*
  * End of Source.
  */