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
  39 static LogWindow *logwindow;
  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 void log_window_clear(GtkWidget *text);
  47
  48 LogWindow *log_window_create(void)
  49 {
  50         LogWindow *logwin;
  51         GtkWidget *window;
  52         GtkWidget *scrolledwin;
  53         GtkWidget *text;
  54
  55         debug_print("Creating log window...\n");
  56         logwin = g_new0(LogWindow, 1);
  57
  58         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  59         gtk_window_set_title(GTK_WINDOW(window), _("Protocol log"));
  60         gtk_window_set_wmclass(GTK_WINDOW(window), "log_window", "Sylpheed");
  61         gtk_window_set_policy(GTK_WINDOW(window), TRUE, TRUE, FALSE);
  62         gtk_widget_set_usize(window, 520, 400);
  63         gtk_signal_connect(GTK_OBJECT(window), "delete_event",
  64                            GTK_SIGNAL_FUNC(gtk_widget_hide_on_delete), NULL);
  65         gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
  66                            GTK_SIGNAL_FUNC(key_pressed), logwin);
  67         gtk_signal_connect(GTK_OBJECT(window), "hide",
  68                            GTK_SIGNAL_FUNC(hide_cb), logwin);
  69         gtk_widget_realize(window);
  70
  71         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  72         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  73                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
  74         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  75         gtk_widget_show(scrolledwin);
  76
  77         text = gtk_text_new(gtk_scrolled_window_get_hadjustment
  78                             (GTK_SCROLLED_WINDOW(scrolledwin)),
  79                             gtk_scrolled_window_get_vadjustment
  80                             (GTK_SCROLLED_WINDOW(scrolledwin)));
  81         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
  82         gtk_widget_show(text);
  83         gtk_text_freeze(GTK_TEXT(text));
  84
  85         logwin->window = window;
  86         logwin->scrolledwin = scrolledwin;
  87         logwin->text = text;
  88
  89         logwindow = logwin;
  90
  91         return logwin;
  92 }
  93
  94 void log_window_init(LogWindow *logwin)
  95 {
  96         GdkColormap *colormap;
  97         GdkColor color[3] =
  98                 {{0, 0, 0xafff, 0}, {0, 0xefff, 0, 0}, {0, 0xefff, 0, 0}};
  99         gboolean success[3];
 100         gint i;
 101
 102         gtkut_widget_disable_theme_engine(logwin->text);
 103
 104         logwin->msg_color   = color[0];
 105         logwin->warn_color  = color[1];
 106         logwin->error_color = color[2];
 107
 108         colormap = gdk_window_get_colormap(logwin->window->window);
 109         gdk_colormap_alloc_colors(colormap, color, 3, FALSE, TRUE, success);
 110
 111         for (i = 0; i < 3; i++) {
 112                 if (success[i] == FALSE) {
 113                         GtkStyle *style;
 114
 115                         g_warning("LogWindow: color allocation failed\n");
 116                         style = gtk_widget_get_style(logwin->window);
 117                         logwin->msg_color = logwin->warn_color =
 118                         logwin->error_color = style->black;
 119                         break;
 120                 }
 121         }
 122 }
 123
 124 void log_window_show(LogWindow *logwin)
 125 {
 126         GtkText *text = GTK_TEXT(logwin->text);
 127
 128         gtk_widget_hide(logwin->window);
 129
 130         gtk_text_thaw(text);
 131         text->vadj->value = text->vadj->upper - text->vadj->page_size;
 132         gtk_signal_emit_by_name(GTK_OBJECT(text->vadj), "value_changed");
 133
 134         gtk_widget_show(logwin->window);
 135 }
 136
 137 void log_window_append(const gchar *str, LogType type)
 138 {
 139         GtkText *text;
 140         GdkColor *color = NULL;
 141         gchar *head = NULL;
 142
 143         g_return_if_fail(logwindow != NULL);
 144         if (prefs_common.cliplog && !prefs_common.loglength)
 145                 return;
 146
 147         text = GTK_TEXT(logwindow->text);
 148
 149         switch (type) {
 150         case LOG_MSG:
 151                 color = &logwindow->msg_color;
 152                 head = "* ";
 153                 break;
 154         case LOG_WARN:
 155                 color = &logwindow->warn_color;
 156                 head = "** ";
 157                 break;
 158         case LOG_ERROR:
 159                 color = &logwindow->error_color;
 160                 head = "*** ";
 161                 break;
 162         default:
 163                 break;
 164         }
 165
 166         if (head) gtk_text_insert(text, NULL, color, NULL, head, -1);
 167         gtk_text_insert(text, NULL, color, NULL, str, -1);
 168         if (prefs_common.cliplog)
 169                log_window_clear (GTK_WIDGET (text));
 170 }
 171
 172 static void hide_cb(GtkWidget *widget, LogWindow *logwin)
 173 {
 174         if (GTK_TEXT(logwin->text)->freeze_count == 0)
 175                 gtk_text_freeze(GTK_TEXT(logwin->text));
 176 }
 177
 178 static void key_pressed(GtkWidget *widget, GdkEventKey *event,
 179                         LogWindow *logwin)
 180 {
 181         if (event && event->keyval == GDK_Escape)
 182                 gtk_widget_hide(logwin->window);
 183 }
 184
 185 void log_window_clear(GtkWidget *textw)
 186 {
 187         guint length;
 188         guint point;
 189         gboolean was_frozen = FALSE;
 190         GtkText *text = GTK_TEXT(textw);
 191
 192         length = gtk_text_get_length (text);
 193         debug_print("Log window length: %u\n", length);
 194
 195         if (length > prefs_common.loglength) {
 196                 gchar *lf;
 197                 /* find the end of the first line after the cut off
 198                  * point */
 199                 point = length - prefs_common.loglength;
 200                 while (point < length && GTK_TEXT_INDEX(text, point) != '\n')
 201                         point++;
 202                 /* erase the text */
 203                 if (text->freeze_count) {
 204                         was_frozen = TRUE;
 205                         gtk_text_thaw(text);
 206                 }
 207                 gtk_text_set_point (text, 0);
 208                 gtk_text_freeze(text);
 209                 if (!gtk_text_forward_delete (text, point + 1))
 210                         debug_print("Error clearing log\n");
 211                 gtk_text_thaw(text);
 212                 gtk_text_set_point(text,
 213                                    gtk_text_get_length (GTK_TEXT (text)));
 214                 if (was_frozen)
 215                         gtk_text_freeze(text);
 216         }
 217 }
 218
 219