diff options
Diffstat (limited to 'libdocument/ev-image.c')
| -rw-r--r-- | libdocument/ev-image.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/libdocument/ev-image.c b/libdocument/ev-image.c new file mode 100644 index 0000000..f906b00 --- /dev/null +++ b/libdocument/ev-image.c @@ -0,0 +1,167 @@ +/* this file is part of evince, a gnome document viewer + * + * Copyright (C) 2006 Carlos Garcia Campos <carlosgc@gnome.org> + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <glib/gstdio.h> +#include "ev-file-helpers.h" +#include "ev-image.h" + +struct _EvImagePrivate { + 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) { + g_unlink (image->priv->tmp_uri); + 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_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; +} + +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) +{ + GError *error = NULL; + + g_return_val_if_fail (EV_IS_IMAGE (image), NULL); + g_return_val_if_fail (GDK_IS_PIXBUF (image->priv->pixbuf), NULL); + + if (image->priv->tmp_uri) + return image->priv->tmp_uri; + + image->priv->tmp_uri = ev_tmp_filename ("image"); + gdk_pixbuf_save (image->priv->pixbuf, + image->priv->tmp_uri, "png", &error, + "compression", "3", NULL); + if (!error) + return image->priv->tmp_uri; + + /* Erro saving image */ + g_warning (error->message); + g_error_free (error); + g_free (image->priv->tmp_uri); + image->priv->tmp_uri = NULL; + + 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; +} + +/* EvImageMapping */ +static void +ev_image_mapping_free_foreach (EvImageMapping *mapping) +{ + g_object_unref (mapping->image); + g_free (mapping); +} + +void +ev_image_mapping_free (GList *image_mapping) +{ + if (!image_mapping) + return; + + g_list_foreach (image_mapping, (GFunc) ev_image_mapping_free_foreach, NULL); + g_list_free (image_mapping); +} + +EvImage * +ev_image_mapping_find (GList *image_mapping, + gdouble x, + gdouble y) +{ + GList *list; + + for (list = image_mapping; list; list = list->next) { + EvImageMapping *mapping = list->data; + + if ((x >= mapping->x1) && + (y >= mapping->y1) && + (x <= mapping->x2) && + (y <= mapping->y2)) { + return mapping->image; + } + } + + return NULL; +} + + |