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
 145         text = GTK_TEXT(logwindow->text);
 146
 147         switch (type) {
 148         case LOG_MSG:
 149                 color = &logwindow->msg_color;
 150                 head = "* ";
 151                 break;
 152         case LOG_WARN:
 153                 color = &logwindow->warn_color;
 154                 head = "** ";
 155                 break;
 156         case LOG_ERROR:
 157                 color = &logwindow->error_color;
 158                 head = "*** ";
 159                 break;
 160         default:
 161                 break;
 162         }
 163
 164         if (head) gtk_text_insert(text, NULL, color, NULL, head, -1);
 165         gtk_text_insert(text, NULL, color, NULL, str, -1);
 166         if (prefs_common.cliplog)
 167                log_window_clear (GTK_WIDGET (text));
 168 }
 169
 170 static void hide_cb(GtkWidget *widget, LogWindow *logwin)
 171 {
 172         if (GTK_TEXT(logwin->text)->freeze_count == 0)
 173                 gtk_text_freeze(GTK_TEXT(logwin->text));
 174 }
 175
 176 static void key_pressed(GtkWidget *widget, GdkEventKey *event,
 177                         LogWindow *logwin)
 178 {
 179         if (event && event->keyval == GDK_Escape)
 180                 gtk_widget_hide(logwin->window);
 181 }
 182
 183 #define LOG_AVG_LINE_LEN 80
 184 void log_window_clear(GtkWidget *text)
 185 {
 186         guint length;
 187         guint point;
 188
 189         length = gtk_text_get_length (GTK_TEXT (text));
 190         debug_print("Log window length: %u\n", length);
 191
 192         if (length > prefs_common.loglength) {
 193                 gchar *lf;
 194                 /* find the end of the first line after the cut off
 195                  * point */
 196                 point = length - prefs_common.loglength;
 197
 198                 do {
 199                         gchar *str;
 200                         if ((str = gtk_editable_get_chars (GTK_EDITABLE (text),
 201                                         point, point + LOG_AVG_LINE_LEN))) {
 202                                 if ((lf = strchr(str, '\n')) != NULL)
 203                                         point += lf - str;
 204                                 else
 205                                         point += strlen(str);
 206                                 g_free(str);
 207                         } else
 208                                 break;
 209                 } while (lf == NULL);
 210
 211                 /* erase the text */
 212                 gtk_text_set_point (GTK_TEXT (text), 0);
 213                 gtk_text_freeze (GTK_TEXT (text));
 214                 if (!gtk_text_forward_delete (GTK_TEXT (text), point + 1))
 215                         debug_print("Error clearing log\n");
 216                 gtk_text_thaw (GTK_TEXT (text));
 217                 gtk_text_set_point (GTK_TEXT (text),
 218                                     gtk_text_get_length (GTK_TEXT (text)));
 219         }
 220
 221 }
 222
 223