src/sourcewindow.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <gdk/gdkkeysyms.h>
  25 #include <gtk/gtkwidget.h>
  26 #include <gtk/gtkwindow.h>
  27 #include <gtk/gtksignal.h>
  28 #include <gtk/gtkscrolledwindow.h>
  29 #include <gtk/gtktext.h>
  30 #include <gtk/gtkstyle.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33
  34 #include "sourcewindow.h"
  35 #include "utils.h"
  36 #include "gtkutils.h"
  37 #include "prefs_common.h"
  38
  39 static void source_window_size_alloc_cb (GtkWidget      *widget,
  40                                          GtkAllocation  *allocation);
  41 static gint source_window_delete_cb     (GtkWidget      *widget,
  42                                          GdkEventAny    *event,
  43                                          SourceWindow   *sourcewin);
  44 static gboolean key_pressed             (GtkWidget      *widget,
  45                                          GdkEventKey    *event,
  46                                          SourceWindow   *sourcewin);
  47 static void source_window_append        (SourceWindow   *sourcewin,
  48                                          const gchar    *str);
  49 static void source_window_destroy       (SourceWindow   *sourcewin);
  50
  51 static void source_window_init()
  52 {
  53 }
  54
  55 SourceWindow *source_window_create(void)
  56 {
  57         SourceWindow *sourcewin;
  58         GtkWidget *window;
  59         GtkWidget *scrolledwin;
  60         GtkWidget *text;
  61         static PangoFontDescription *font_desc = NULL;
  62
  63         static GdkGeometry geometry;
  64
  65         debug_print("Creating source window...\n");
  66         sourcewin = g_new0(SourceWindow, 1);
  67
  68         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "sourcewindow");
  69         gtk_window_set_title(GTK_WINDOW(window), _("Source of the message"));
  70         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
  71         gtk_widget_set_size_request(window, prefs_common.sourcewin_width,
  72                                     prefs_common.sourcewin_height);
  73
  74         if (!geometry.min_height) {
  75                 geometry.min_width = 400;
  76                 geometry.min_height = 320;
  77         }
  78         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
  79                                       GDK_HINT_MIN_SIZE);
  80
  81         g_signal_connect(G_OBJECT(window), "size_allocate",
  82                          G_CALLBACK(source_window_size_alloc_cb),
  83                          sourcewin);
  84         g_signal_connect(G_OBJECT(window), "delete_event",
  85                          G_CALLBACK(source_window_delete_cb), sourcewin);
  86         g_signal_connect(G_OBJECT(window), "key_press_event",
  87                          G_CALLBACK(key_pressed), sourcewin);
  88         gtk_widget_realize(window);
  89
  90         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  91         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  92                                        GTK_POLICY_AUTOMATIC,
  93                                        GTK_POLICY_AUTOMATIC);
  94         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
  95                                             GTK_SHADOW_IN);
  96         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  97         gtk_widget_show(scrolledwin);
  98
  99         text = gtk_text_view_new();
 100         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
 101         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 102         if (!font_desc && prefs_common.textfont)
 103                 font_desc = pango_font_description_from_string
 104                                         (prefs_common.textfont);
 105         if (font_desc)
 106                 gtk_widget_modify_font(text, font_desc);
 107         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 108         gtk_widget_show(text);
 109
 110         sourcewin->window = window;
 111         sourcewin->scrolledwin = scrolledwin;
 112         sourcewin->text = text;
 113
 114         source_window_init();
 115
 116         return sourcewin;
 117 }
 118
 119 void source_window_show(SourceWindow *sourcewin)
 120 {
 121         gtk_widget_show_all(sourcewin->window);
 122 }
 123
 124 static void source_window_destroy(SourceWindow *sourcewin)
 125 {
 126         if (sourcewin->updating) {
 127                 debug_print("deferring destroy\n");
 128                 sourcewin->deferred_destroy = TRUE;
 129                 return;
 130         }
 131         gtk_widget_destroy(sourcewin->window);
 132         g_free(sourcewin);
 133 }
 134
 135 void source_window_show_msg(SourceWindow *sourcewin, MsgInfo *msginfo)
 136 {
 137         gchar *file;
 138         gchar *title;
 139         FILE *fp;
 140         gchar buf[BUFFSIZE];
 141
 142         g_return_if_fail(msginfo != NULL);
 143
 144         sourcewin->updating = TRUE;
 145         file = procmsg_get_message_file(msginfo);
 146         sourcewin->updating = FALSE;
 147
 148         if (sourcewin->deferred_destroy) {
 149                 g_free(file);
 150                 source_window_destroy(sourcewin);
 151                 return;
 152         }
 153
 154         g_return_if_fail(file != NULL);
 155
 156         if ((fp = g_fopen(file, "rb")) == NULL) {
 157                 FILE_OP_ERROR(file, "fopen");
 158                 g_free(file);
 159                 return;
 160         }
 161
 162         debug_print("Displaying the source of %s ...\n", file);
 163
 164         title = g_strdup_printf(_("%s - Source"), file);
 165         gtk_window_set_title(GTK_WINDOW(sourcewin->window), title);
 166         g_free(title);
 167         g_free(file);
 168
 169         while (fgets(buf, sizeof(buf), fp) != NULL)
 170                 source_window_append(sourcewin, buf);
 171
 172         fclose(fp);
 173 }
 174
 175 static void source_window_append(SourceWindow *sourcewin, const gchar *str)
 176 {
 177         GtkTextView *text = GTK_TEXT_VIEW(sourcewin->text);
 178         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 179         GtkTextIter iter;
 180         gchar *out;
 181         gint len;
 182
 183         len = strlen(str) + 1;
 184         Xalloca(out, len, return);
 185         conv_utf8todisp(out, len, str);
 186
 187         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 188         gtk_text_buffer_insert(buffer, &iter, out, -1);
 189 }
 190
 191 static void source_window_size_alloc_cb(GtkWidget *widget,
 192                                         GtkAllocation *allocation)
 193 {
 194         g_return_if_fail(allocation != NULL);
 195
 196         prefs_common.sourcewin_width  = allocation->width;
 197         prefs_common.sourcewin_height = allocation->height;
 198 }
 199
 200 static gint source_window_delete_cb(GtkWidget *widget, GdkEventAny *event,
 201                                     SourceWindow *sourcewin)
 202 {
 203         source_window_destroy(sourcewin);
 204         return TRUE;
 205 }
 206
 207 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
 208                             SourceWindow *sourcewin)
 209 {
 210
 211         if (!event || !sourcewin) return FALSE;
 212
 213         switch (event->keyval) {
 214         case GDK_A:
 215         case GDK_a:
 216                 if ((event->state & GDK_CONTROL_MASK) != 0)
 217                         gtk_editable_select_region(GTK_EDITABLE(sourcewin->text), 0, -1);
 218                 break;
 219         case GDK_W:
 220         case GDK_w:
 221                 if ((event->state & GDK_CONTROL_MASK) != 0)
 222                         gtk_widget_destroy(sourcewin->window);
 223                 break;
 224         case GDK_Escape:
 225                 source_window_destroy(sourcewin);
 226                 return TRUE;
 227                 break;
 228         }
 229
 230         return FALSE;
 231 }