155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* pikapixbuf.c
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* Copyright (C) 2005 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "widgets-types.h"
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#include "pikapixbuf.h"
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/* local function prototypes */
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static gint pika_pixbuf_format_compare (GdkPixbufFormat *a,
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GdkPixbufFormat *b);
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/* public functions */
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GSList *
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pika_pixbuf_get_formats (void)
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{
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return g_slist_sort (gdk_pixbuf_get_formats (),
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(GCompareFunc) pika_pixbuf_format_compare);
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}
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void
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pika_pixbuf_targets_add (GtkTargetList *target_list,
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guint info,
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gboolean writable)
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{
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GSList *formats;
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GSList *list;
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g_return_if_fail (target_list != NULL);
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formats = pika_pixbuf_get_formats ();
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for (list = formats; list; list = g_slist_next (list))
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{
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GdkPixbufFormat *format = list->data;
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gchar **mime_types;
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gchar **type;
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if (writable && ! gdk_pixbuf_format_is_writable (format))
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continue;
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mime_types = gdk_pixbuf_format_get_mime_types (format);
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for (type = mime_types; *type; type++)
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{
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/* skip Windows ICO as writable format */
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if (writable && strcmp (*type, "image/x-icon") == 0)
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continue;
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gtk_target_list_add (target_list,
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gdk_atom_intern (*type, FALSE), 0, info);
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}
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g_strfreev (mime_types);
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}
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g_slist_free (formats);
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}
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void
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pika_pixbuf_targets_remove (GtkTargetList *target_list)
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{
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GSList *formats;
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GSList *list;
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g_return_if_fail (target_list != NULL);
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formats = pika_pixbuf_get_formats ();
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for (list = formats; list; list = g_slist_next (list))
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{
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GdkPixbufFormat *format = list->data;
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gchar **mime_types;
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gchar **type;
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mime_types = gdk_pixbuf_format_get_mime_types (format);
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for (type = mime_types; *type; type++)
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{
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gtk_target_list_remove (target_list,
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gdk_atom_intern (*type, FALSE));
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}
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g_strfreev (mime_types);
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}
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g_slist_free (formats);
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}
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/* private functions */
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static gint
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pika_pixbuf_format_compare (GdkPixbufFormat *a,
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GdkPixbufFormat *b)
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{
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gchar *a_name = gdk_pixbuf_format_get_name (a);
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gchar *b_name = gdk_pixbuf_format_get_name (b);
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gint retval = 0;
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/* move PNG to the front of the list */
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if (strcmp (a_name, "png") == 0)
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retval = -1;
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else if (strcmp (b_name, "png") == 0)
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retval = 1;
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/* move JPEG to the end of the list */
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else if (strcmp (a_name, "jpeg") == 0)
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retval = 1;
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else if (strcmp (b_name, "jpeg") == 0)
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retval = -1;
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/* move GIF to the end of the list */
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else if (strcmp (a_name, "gif") == 0)
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retval = 1;
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else if (strcmp (b_name, "gif") == 0)
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retval = -1;
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g_free (a_name);
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g_free (b_name);
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return retval;
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}
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