inicial

1 files changed, 181 insertions, 0 deletions

diff --git a/libdocument/ev-image.c b/libdocument/ev-image.c
new file mode 100644
index 00000000..19ffed51
--- /dev/null
+++ b/libdocument/ev-image.c
@@ -0,0 +1,181 @@
+/* this file is part of evince, a mate document viewer
+ *
+ *  Copyright (C) 2006 Carlos Garcia Campos <[email protected]>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+
+#include <glib/gstdio.h>
+#include <unistd.h>
+
+#include "ev-document-misc.h"
+#include "ev-file-helpers.h"
+#include "ev-image.h"
+
+struct _EvImagePrivate {
+	gint       page;
+	gint       id;
+	GdkPixbuf *pixbuf;
+	gchar     *tmp_uri;
+};
+
+#define EV_IMAGE_GET_PRIVATE(object) \
+                (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_IMAGE, EvImagePrivate))
+
+G_DEFINE_TYPE (EvImage, ev_image, G_TYPE_OBJECT)
+
+static void
+ev_image_finalize (GObject *object)
+{
+	EvImage *image = EV_IMAGE (object);
+
+	if (image->priv->pixbuf) {
+		g_object_unref (image->priv->pixbuf);
+		image->priv->pixbuf = NULL;
+	}
+
+	if (image->priv->tmp_uri) {
+		gchar *filename;
+
+		filename = g_filename_from_uri (image->priv->tmp_uri, NULL, NULL);
+		ev_tmp_filename_unlink (filename);
+		g_free (filename);
+		g_free (image->priv->tmp_uri);
+		image->priv->tmp_uri = NULL;
+	}
+
+	(* G_OBJECT_CLASS (ev_image_parent_class)->finalize) (object);
+}
+
+static void
+ev_image_class_init (EvImageClass *klass)
+{
+	GObjectClass *g_object_class;
+
+	g_object_class = G_OBJECT_CLASS (klass);
+
+	g_type_class_add_private (g_object_class, sizeof (EvImagePrivate));
+
+	g_object_class->finalize = ev_image_finalize;
+}
+
+static void
+ev_image_init (EvImage *image)
+{
+	image->priv = EV_IMAGE_GET_PRIVATE (image);
+}
+
+EvImage *
+ev_image_new (gint page,
+	      gint img_id)
+{
+	EvImage *image;
+
+	image = EV_IMAGE (g_object_new (EV_TYPE_IMAGE, NULL));
+	image->priv->page = page;
+	image->priv->id = img_id;
+
+	return image;
+}
+
+EvImage *
+ev_image_new_from_pixbuf (GdkPixbuf *pixbuf)
+{
+	EvImage *image;
+
+	g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
+
+	image = EV_IMAGE (g_object_new (EV_TYPE_IMAGE, NULL));
+	image->priv->pixbuf = g_object_ref (pixbuf);
+
+	return image;
+}
+
+gint
+ev_image_get_page (EvImage *image)
+{
+	g_return_val_if_fail (EV_IS_IMAGE (image), -1);
+
+	return image->priv->page;
+}
+
+gint
+ev_image_get_id (EvImage *image)
+{
+	g_return_val_if_fail (EV_IS_IMAGE (image), -1);
+
+	return image->priv->id;
+}
+
+GdkPixbuf *
+ev_image_get_pixbuf (EvImage *image)
+{
+	g_return_val_if_fail (EV_IS_IMAGE (image), NULL);
+	g_return_val_if_fail (GDK_IS_PIXBUF (image->priv->pixbuf), NULL);
+
+	return image->priv->pixbuf;
+}
+
+const gchar *
+ev_image_save_tmp (EvImage   *image,
+		   GdkPixbuf *pixbuf)
+{
+	GError *error = NULL;
+	gchar  *filename = NULL;
+        int fd;
+	
+	g_return_val_if_fail (EV_IS_IMAGE (image), NULL);
+	g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
+
+	if (image->priv->tmp_uri)
+		return image->priv->tmp_uri;
+
+        if ((fd = ev_mkstemp ("image.XXXXXX", &filename, &error)) == -1)
+                goto had_error;
+
+	gdk_pixbuf_save (pixbuf, filename,
+			 "png", &error,
+			 "compression", "3", NULL);
+        close (fd);
+
+	if (!error) {
+		image->priv->tmp_uri = g_filename_to_uri (filename, NULL, &error);
+                if (image->priv->tmp_uri == NULL)
+                        goto had_error;
+
+		g_free (filename);
+		
+		return image->priv->tmp_uri;
+	}
+
+    had_error:
+
+	/* Erro saving image */
+	g_warning ("Error saving image: %s", error->message);
+	g_error_free (error);
+	g_free (filename);
+
+	return NULL;
+}
+
+const gchar *
+ev_image_get_tmp_uri (EvImage *image)
+{
+	g_return_val_if_fail (EV_IS_IMAGE (image), NULL);
+
+	return image->priv->tmp_uri;
+}