src/logwindow.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 Hiroyuki Yamamoto
   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 2 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, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include <glib.h>
  25 #include <gdk/gdkkeysyms.h>
  26 #include <gtk/gtkwidget.h>
  27 #include <gtk/gtkwindow.h>
  28 #include <gtk/gtksignal.h>
  29 #include <gtk/gtkscrolledwindow.h>
  30 #include <gtk/gtktext.h>
  31 #include <gtk/gtkstyle.h>
  32
  33 #include "intl.h"
  34 #include "logwindow.h"
  35 #include "utils.h"
  36 #include "gtkutils.h"
  37 #include "prefs_common.h"
  38 #include "log.h"
  39 #include "hooks.h"
  40
  41 static void hide_cb                     (GtkWidget      *widget,
  42                                          LogWindow      *logwin);
  43 static void key_pressed                 (GtkWidget      *widget,
  44                                          GdkEventKey    *event,
  45                                          LogWindow      *logwin);
  46 static gboolean log_window_append       (gpointer        source,
  47                                          gpointer        data);
  48 void log_window_clear                   (GtkWidget      *text);
  49
  50 LogWindow *log_window_create(void)
  51 {
  52         LogWindow *logwin;
  53         GtkWidget *window;
  54         GtkWidget *scrolledwin;
  55         GtkWidget *text;
  56
  57         debug_print("Creating log window...\n");
  58         logwin = g_new0(LogWindow, 1);
  59
  60         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  61         gtk_window_set_title(GTK_WINDOW(window), _("Protocol log"));
  62         gtk_window_set_wmclass(GTK_WINDOW(window), "log_window", "Sylpheed");
  63         gtk_window_set_policy(GTK_WINDOW(window), TRUE, TRUE, FALSE);
  64         gtk_widget_set_usize(window, 520, 400);
  65         gtk_signal_connect(GTK_OBJECT(window), "delete_event",
  66                            GTK_SIGNAL_FUNC(gtk_widget_hide_on_delete), NULL);
  67         gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
  68                            GTK_SIGNAL_FUNC(key_pressed), logwin);
  69         gtk_signal_connect(GTK_OBJECT(window), "hide",
  70                            GTK_SIGNAL_FUNC(hide_cb), logwin);
  71         gtk_widget_realize(window);
  72
  73         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  74         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  75                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
  76         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  77         gtk_widget_show(scrolledwin);
  78
  79         text = gtk_text_new(gtk_scrolled_window_get_hadjustment
  80                             (GTK_SCROLLED_WINDOW(scrolledwin)),
  81                             gtk_scrolled_window_get_vadjustment
  82                             (GTK_SCROLLED_WINDOW(scrolledwin)));
  83         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
  84         gtk_widget_show(text);
  85         gtk_text_freeze(GTK_TEXT(text));
  86
  87         logwin->window = window;
  88         logwin->scrolledwin = scrolledwin;
  89         logwin->text = text;
  90         logwin->hook_id = hooks_register_hook(LOG_APPEND_TEXT_HOOKLIST, log_window_append, logwin);
  91
  92         return logwin;
  93 }
  94
  95 void log_window_init(LogWindow *logwin)
  96 {
  97         GdkColormap *colormap;
  98         GdkColor color[3] =
  99                 {{0, 0, 0xafff, 0}, {0, 0xefff, 0, 0}, {0, 0xefff, 0, 0}};
 100         gboolean success[3];
 101         gint i;
 102
 103         gtkut_widget_disable_theme_engine(logwin->text);
 104
 105         logwin->msg_color   = color[0];
 106         logwin->warn_color  = color[1];
 107         logwin->error_color = color[2];
 108
 109         colormap = gdk_window_get_colormap(logwin->window->window);
 110         gdk_colormap_alloc_colors(colormap, color, 3, FALSE, TRUE, success);
 111
 112         for (i = 0; i < 3; i++) {
 113                 if (success[i] == FALSE) {
 114                         GtkStyle *style;
 115
 116                         g_warning("LogWindow: color allocation failed\n");
 117                         style = gtk_widget_get_style(logwin->window);
 118                         logwin->msg_color = logwin->warn_color =
 119                         logwin->error_color = style->black;
 120                         break;
 121                 }
 122         }
 123 }
 124
 125 void log_window_show(LogWindow *logwin)
 126 {
 127         GtkText *text = GTK_TEXT(logwin->text);
 128
 129         gtk_widget_hide(logwin->window);
 130
 131         gtk_text_thaw(text);
 132         text->vadj->value = text->vadj->upper - text->vadj->page_size;
 133         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj), "value_changed");
 134
 135         gtk_widget_show(logwin->window);
 136 }
 137
 138 static gboolean log_window_append(gpointer source, gpointer data)
 139 {
 140         LogText *logtext = (LogText *) source;
 141         LogWindow *logwindow = (LogWindow *) data;
 142         GtkText *text;
 143         GdkColor *color = NULL;
 144         gchar *head = NULL;
 145
 146         g_return_val_if_fail(logtext != NULL, TRUE);
 147         g_return_val_if_fail(logtext->text != NULL, TRUE);
 148         g_return_val_if_fail(logwindow != NULL, FALSE);
 149
 150         if (prefs_common.cliplog && !prefs_common.loglength)
 151                 return FALSE;
 152
 153         text = GTK_TEXT(logwindow->text);
 154
 155         switch (logtext->type) {
 156         case LOG_MSG:
 157                 color = &logwindow->msg_color;
 158                 head = "* ";
 159                 break;
 160         case LOG_WARN:
 161                 color = &logwindow->warn_color;
 162                 head = "** ";
 163                 break;
 164         case LOG_ERROR:
 165                 color = &logwindow->error_color;
 166                 head = "*** ";
 167                 break;
 168         default:
 169                 break;
 170         }
 171
 172         if (head) gtk_text_insert(text, NULL, color, NULL, head, -1);
 173         gtk_text_insert(text, NULL, color, NULL, logtext->text, -1);
 174         if (prefs_common.cliplog)
 175                log_window_clear (GTK_WIDGET (text));
 176
 177         return FALSE;
 178 }
 179
 180 static void hide_cb(GtkWidget *widget, LogWindow *logwin)
 181 {
 182         if (GTK_TEXT(logwin->text)->freeze_count == 0)
 183                 gtk_text_freeze(GTK_TEXT(logwin->text));
 184 }
 185
 186 static void key_pressed(GtkWidget *widget, GdkEventKey *event,
 187                         LogWindow *logwin)
 188 {
 189         if (event && event->keyval == GDK_Escape)
 190                 gtk_widget_hide(logwin->window);
 191 }
 192
 193 void log_window_clear(GtkWidget *textw)
 194 {
 195         guint length;
 196         guint point;
 197         gboolean was_frozen = FALSE;
 198         GtkText *text = GTK_TEXT(textw);
 199
 200         length = gtk_text_get_length (text);
 201         debug_print("Log window length: %u\n", length);
 202
 203         if (length > prefs_common.loglength) {
 204                 /* find the end of the first line after the cut off
 205                  * point */
 206                 point = length - prefs_common.loglength;
 207                 while (point < length && GTK_TEXT_INDEX(text, point) != '\n')
 208                         point++;
 209                 /* erase the text */
 210                 if (text->freeze_count) {
 211                         was_frozen = TRUE;
 212                         gtk_text_thaw(text);
 213                 }
 214                 gtk_text_set_point (text, 0);
 215                 gtk_text_freeze(text);
 216                 if (!gtk_text_forward_delete (text, point + 1))
 217                         debug_print("Error clearing log\n");
 218                 gtk_text_thaw(text);
 219                 gtk_text_set_point(text,
 220                                    gtk_text_get_length (GTK_TEXT (text)));
 221                 if (was_frozen)
 222                         gtk_text_freeze(text);
 223         }
 224 }
 225
 226