src/imageview.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 <gtk/gtkscrolledwindow.h>
  26 #include <gtk/gtkpixmap.h>
  27
  28 #if HAVE_GDK_PIXBUF
  29 #  include <gdk-pixbuf/gdk-pixbuf.h>
  30 #else
  31 #if HAVE_GDK_IMLIB
  32 #  include <gdk_imlib.h>
  33 #endif
  34 #endif /* HAVE_GDK_PIXBUF */
  35
  36 #include "intl.h"
  37 #include "mainwindow.h"
  38 #include "prefs_common.h"
  39 #include "procmime.h"
  40 #include "imageview.h"
  41 #include "utils.h"
  42
  43 ImageView *imageview_create(void)
  44 {
  45         ImageView *imageview;
  46         GtkWidget *scrolledwin;
  47
  48         debug_print(_("Creating image view...\n"));
  49         imageview = g_new0(ImageView, 1);
  50
  51         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  52         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  53                                        GTK_POLICY_AUTOMATIC,
  54                                        GTK_POLICY_AUTOMATIC);
  55         gtk_widget_set_usize(scrolledwin, prefs_common.mainview_width, -1);
  56
  57         gtk_widget_show_all(scrolledwin);
  58
  59         imageview->scrolledwin  = scrolledwin;
  60         imageview->image        = NULL;
  61
  62         return imageview;
  63 }
  64
  65 void imageview_init(ImageView *imageview)
  66 {
  67 }
  68
  69 #if HAVE_GDK_PIXBUF
  70 void imageview_show_image(ImageView *imageview, MimeInfo *mimeinfo,
  71                           const gchar *file)
  72 {
  73         GdkPixbuf *pixbuf;
  74         GdkPixmap *pixmap;
  75         GdkBitmap *mask;
  76
  77         imageview_clear(imageview);
  78
  79         pixbuf = gdk_pixbuf_new_from_file(file);
  80
  81         if (!pixbuf) {
  82                 g_warning(_("Can't load the image."));
  83                 return;
  84         }
  85
  86         if (imageview->messageview->mainwin)
  87                 main_window_cursor_wait(imageview->messageview->mainwin);
  88
  89         gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &mask, 0);
  90
  91         if (!imageview->image) {
  92                 imageview->image = gtk_pixmap_new(pixmap, mask);
  93
  94                 gtk_scrolled_window_add_with_viewport
  95                         (GTK_SCROLLED_WINDOW(imageview->scrolledwin),
  96                          imageview->image);
  97         } else
  98                 gtk_pixmap_set(GTK_PIXMAP(imageview->image), pixmap, mask);
  99
 100         gtk_widget_show(imageview->image);
 101
 102         gdk_pixbuf_unref(pixbuf);
 103
 104         if (imageview->messageview->mainwin)
 105                 main_window_cursor_normal(imageview->messageview->mainwin);
 106 }
 107 #else
 108 #if HAVE_GDK_IMLIB
 109 void imageview_show_image(ImageView *imageview, MimeInfo *mimeinfo,
 110                           const gchar *file)
 111 {
 112         GdkImlibImage *im;
 113
 114         imageview_clear(imageview);
 115
 116         im = gdk_imlib_load_image((gchar *)file);
 117
 118         if (!im) {
 119                 g_warning(_("Can't load the image."));
 120                 return;
 121         }
 122
 123         if (imageview->messageview->mainwin)
 124                 main_window_cursor_wait(imageview->messageview->mainwin);
 125
 126         gdk_imlib_render(im, im->rgb_width, im->rgb_height);
 127
 128         if (!imageview->image) {
 129                 imageview->image = gtk_pixmap_new(gdk_imlib_move_image(im),
 130                                                   gdk_imlib_move_mask(im));
 131
 132                 gtk_scrolled_window_add_with_viewport
 133                         (GTK_SCROLLED_WINDOW(imageview->scrolledwin),
 134                          imageview->image);
 135         } else
 136                 gtk_pixmap_set(GTK_PIXMAP(imageview->image),
 137                                gdk_imlib_move_image(im),
 138                                gdk_imlib_move_mask(im));
 139
 140         gtk_widget_show(imageview->image);
 141
 142         gdk_imlib_destroy_image(im);
 143
 144         if (imageview->messageview->mainwin)
 145                 main_window_cursor_normal(imageview->messageview->mainwin);
 146 }
 147 #else
 148 void imageview_show_image(ImageView *imageview, MimeInfo *mimeinfo,
 149                           const gchar *file)
 150 {
 151 }
 152 #endif /* HAVE_GDK_IMLIB */
 153 #endif /* HAVE_GDK_PIXBUF */
 154
 155 void imageview_clear(ImageView *imageview)
 156 {
 157         GtkAdjustment *hadj, *vadj;
 158
 159         if (imageview->image)
 160                 gtk_pixmap_set(GTK_PIXMAP(imageview->image), NULL, NULL);
 161         hadj = gtk_scrolled_window_get_hadjustment
 162                 (GTK_SCROLLED_WINDOW(imageview->scrolledwin));
 163         gtk_adjustment_set_value(hadj, 0.0);
 164         vadj = gtk_scrolled_window_get_vadjustment
 165                 (GTK_SCROLLED_WINDOW(imageview->scrolledwin));
 166         gtk_adjustment_set_value(vadj, 0.0);
 167 }
 168
 169 void imageview_destroy(ImageView *imageview)
 170 {
 171         g_free(imageview);
 172 }