src/gtk/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/gtktextview.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 "log.h"
  38 #include "hooks.h"
  39
  40 static void hide_cb                     (GtkWidget      *widget,
  41                                          LogWindow      *logwin);
  42 static gboolean key_pressed             (GtkWidget      *widget,
  43                                          GdkEventKey    *event,
  44                                          LogWindow      *logwin);
  45 static gboolean log_window_append       (gpointer        source,
  46                                          gpointer        data);
  47 static void log_window_clip             (GtkWidget      *text,
  48                                          guint           glip_length);
  49
  50 LogWindow *log_window_create(void)
  51 {
  52         LogWindow *logwin;
  53         GtkWidget *window;
  54         GtkWidget *scrolledwin;
  55         GtkWidget *text;
  56         GtkTextBuffer *buffer;
  57         GtkTextIter iter;
  58
  59         debug_print("Creating log window...\n");
  60         logwin = g_new0(LogWindow, 1);
  61
  62         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  63         gtk_window_set_title(GTK_WINDOW(window), _("Protocol log"));
  64         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
  65         gtk_widget_set_size_request(window, 520, 400);
  66         g_signal_connect(G_OBJECT(window), "delete_event",
  67                          G_CALLBACK(gtk_widget_hide_on_delete), NULL);
  68         g_signal_connect(G_OBJECT(window), "key_press_event",
  69                          G_CALLBACK(key_pressed), logwin);
  70         g_signal_connect(G_OBJECT(window), "hide",
  71                          G_CALLBACK(hide_cb), logwin);
  72         gtk_widget_realize(window);
  73
  74         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  75         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  76                                        GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
  77         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  78         gtk_widget_show(scrolledwin);
  79
  80         text = gtk_text_view_new();
  81         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
  82         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD);
  83         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
  84         gtk_text_buffer_get_start_iter(buffer, &iter);
  85         gtk_text_buffer_create_mark(buffer, "end", &iter, FALSE);
  86         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
  87         gtk_widget_show(text);
  88
  89         logwin->window = window;
  90         logwin->scrolledwin = scrolledwin;
  91         logwin->text = text;
  92         logwin->hook_id = hooks_register_hook(LOG_APPEND_TEXT_HOOKLIST, log_window_append, logwin);
  93
  94         return logwin;
  95 }
  96
  97 void log_window_init(LogWindow *logwin)
  98 {
  99         GtkTextBuffer *buffer;
 100         GdkColormap *colormap;
 101         GdkColor color[3] =
 102                 {{0, 0, 0xafff, 0}, {0, 0xefff, 0, 0}, {0, 0xefff, 0, 0}};
 103         gboolean success[3];
 104         gint i;
 105
 106         gtkut_widget_disable_theme_engine(logwin->text);
 107
 108         logwin->msg_color   = color[0];
 109         logwin->warn_color  = color[1];
 110         logwin->error_color = color[2];
 111
 112         colormap = gdk_window_get_colormap(logwin->window->window);
 113         gdk_colormap_alloc_colors(colormap, color, 3, FALSE, TRUE, success);
 114
 115         for (i = 0; i < 3; i++) {
 116                 if (success[i] == FALSE) {
 117                         GtkStyle *style;
 118
 119                         g_warning("LogWindow: color allocation failed\n");
 120                         style = gtk_widget_get_style(logwin->window);
 121                         logwin->msg_color = logwin->warn_color =
 122                         logwin->error_color = style->black;
 123                         break;
 124                 }
 125         }
 126
 127         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(logwin->text));
 128         gtk_text_buffer_create_tag(buffer, "message",
 129                                    "foreground-gdk", &logwin->msg_color,
 130                                    NULL);
 131         gtk_text_buffer_create_tag(buffer, "warn",
 132                                    "foreground-gdk", &logwin->warn_color,
 133                                    NULL);
 134         gtk_text_buffer_create_tag(buffer, "error",
 135                                    "foreground-gdk", &logwin->error_color,
 136                                    NULL);
 137 }
 138
 139 void log_window_show(LogWindow *logwin)
 140 {
 141         GtkTextView *text = GTK_TEXT_VIEW(logwin->text);
 142         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 143         GtkTextMark *mark;
 144
 145         mark = gtk_text_buffer_get_mark(buffer, "end");
 146         gtk_text_view_scroll_mark_onscreen(text, mark);
 147
 148         gtk_widget_show(logwin->window);
 149 }
 150
 151 void log_window_set_clipping(LogWindow *logwin, gboolean clip, guint clip_length)
 152 {
 153         g_return_if_fail(logwin != NULL);
 154
 155         logwin->clip = clip;
 156         logwin->clip_length = clip_length;
 157 }
 158
 159 static gboolean log_window_append(gpointer source, gpointer data)
 160 {
 161         LogText *logtext = (LogText *) source;
 162         LogWindow *logwindow = (LogWindow *) data;
 163         GtkTextView *text;
 164         GtkTextBuffer *buffer;
 165         GtkTextIter iter;
 166         GdkColor *color = NULL;
 167         gchar *head = NULL;
 168         const gchar *tag;
 169
 170         g_return_val_if_fail(logtext != NULL, TRUE);
 171         g_return_val_if_fail(logtext->text != NULL, TRUE);
 172         g_return_val_if_fail(logwindow != NULL, FALSE);
 173
 174         if (logwindow->clip && !logwindow->clip_length)
 175                 return FALSE;
 176
 177         text = GTK_TEXT_VIEW(logwindow->text);
 178         buffer = gtk_text_view_get_buffer(text);
 179         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 180
 181         switch (logtext->type) {
 182         case LOG_MSG:
 183                 color = &logwindow->msg_color;
 184                 tag = "message";
 185                 head = "* ";
 186                 break;
 187         case LOG_WARN:
 188                 color = &logwindow->warn_color;
 189                 tag = "warn";
 190                 head = "** ";
 191                 break;
 192         case LOG_ERROR:
 193                 color = &logwindow->error_color;
 194                 tag = "error";
 195                 head = "*** ";
 196                 break;
 197         default:
 198                 tag = NULL;
 199                 break;
 200         }
 201
 202         if (head)
 203                 gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, head, -1,
 204                                                          tag, NULL);
 205         gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, logtext->text, -1,
 206                                                  tag, NULL);
 207
 208         gtk_text_buffer_get_start_iter(buffer, &iter);
 209         gtk_text_buffer_place_cursor(buffer, &iter);
 210
 211         if (logwindow->clip)
 212                log_window_clip (GTK_WIDGET (text), logwindow->clip_length);
 213
 214         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 215         gtk_text_view_scroll_to_iter(text, &iter, 0, TRUE, 0, 0);
 216
 217         return FALSE;
 218 }
 219
 220 static void hide_cb(GtkWidget *widget, LogWindow *logwin)
 221 {
 222 }
 223
 224 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
 225                         LogWindow *logwin)
 226 {
 227         if (event && event->keyval == GDK_Escape)
 228                 gtk_widget_hide(logwin->window);
 229         return FALSE;
 230 }
 231
 232 static void log_window_clip(GtkWidget *textw, guint clip_length)
 233 {
 234         guint length;
 235         guint point;
 236         GtkTextView *textview = GTK_TEXT_VIEW(textw);
 237         GtkTextBuffer *textbuf = gtk_text_view_get_buffer(textview);
 238         GtkTextIter start_iter, end_iter;
 239
 240         length = gtk_text_buffer_get_char_count (textbuf);
 241         debug_print("Log window length: %u\n", length);
 242
 243         if (length > clip_length) {
 244                 /* find the end of the first line after the cut off
 245                  * point */
 246                 point = length - clip_length;
 247                 gtk_text_buffer_get_iter_at_offset(textbuf, &end_iter, point);
 248                 if (!gtk_text_iter_forward_to_line_end(&end_iter))
 249                         return;
 250                 gtk_text_buffer_get_start_iter(textbuf, &start_iter);
 251                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
 252         }
 253 }