forked from AuroraMiddleware/gtk
6ba75ff95b
2004-12-05 Tor Lillqvist <tml@iki.fi> * gdk-pixbuf-animation.c * gdk-pixbuf-io.c * io-xbm.c * io-xpm.c * make-inline-pixbuf.c * queryloaders.c: Use gstdio wrappers. Document that file names are in the GLib file name encoding. * gdk-pixbuf-csource.c * queryloaders.c: On Windows, convert command line arguments and environment variable values from locale encoding to UTF-8. * queryloaders.c: On Windows, use wide character API when available. * Makefile.am * gdk-pixbuf-core.h * gdk-pixbuf-io.c * gdk-pixbuf-animation.h * gdk-pixbuf-animation.c: Like in GLib, for DLL ABI stability on Windows, add binary compatibility versions of functions that take file names as arguments. They use the system codepage, not GLib file name encoding (which is UTF-8 on Windows). Use #defines to make newly compiled code use the "real" functions that use the GLib file name encoding scheme.
825 lines
28 KiB
C
825 lines
28 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
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/* GdkPixbuf library - Simple animation support
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*
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* Copyright (C) 1999 The Free Software Foundation
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*
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* Authors: Jonathan Blandford <jrb@redhat.com>
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* Havoc Pennington <hp@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <errno.h>
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#include "gdk-pixbuf-alias.h"
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#include "gdk-pixbuf-private.h"
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#include "gdk-pixbuf-io.h"
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#include "gdk-pixbuf-i18n.h"
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#include "gdk-pixbuf-animation.h"
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#include <glib/gstdio.h>
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typedef struct _GdkPixbufNonAnim GdkPixbufNonAnim;
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typedef struct _GdkPixbufNonAnimClass GdkPixbufNonAnimClass;
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#define GDK_TYPE_PIXBUF_NON_ANIM (gdk_pixbuf_non_anim_get_type ())
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#define GDK_PIXBUF_NON_ANIM(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_NON_ANIM, GdkPixbufNonAnim))
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#define GDK_IS_PIXBUF_NON_ANIM(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_NON_ANIM))
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#define GDK_PIXBUF_NON_ANIM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_NON_ANIM, GdkPixbufNonAnimClass))
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#define GDK_IS_PIXBUF_NON_ANIM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_NON_ANIM))
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#define GDK_PIXBUF_NON_ANIM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_NON_ANIM, GdkPixbufNonAnimClass))
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/* Private part of the GdkPixbufNonAnim structure */
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struct _GdkPixbufNonAnim {
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GdkPixbufAnimation parent_instance;
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GdkPixbuf *pixbuf;
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};
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struct _GdkPixbufNonAnimClass {
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GdkPixbufAnimationClass parent_class;
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};
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static GType gdk_pixbuf_non_anim_get_type (void) G_GNUC_CONST;
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typedef struct _GdkPixbufNonAnimIter GdkPixbufNonAnimIter;
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typedef struct _GdkPixbufNonAnimIterClass GdkPixbufNonAnimIterClass;
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#define GDK_TYPE_PIXBUF_NON_ANIM_ITER (gdk_pixbuf_non_anim_iter_get_type ())
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#define GDK_PIXBUF_NON_ANIM_ITER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_NON_ANIM_ITER, GdkPixbufNonAnimIter))
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#define GDK_IS_PIXBUF_NON_ANIM_ITER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_NON_ANIM_ITER))
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#define GDK_PIXBUF_NON_ANIM_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_NON_ANIM_ITER, GdkPixbufNonAnimIterClass))
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#define GDK_IS_PIXBUF_NON_ANIM_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_NON_ANIM_ITER))
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#define GDK_PIXBUF_NON_ANIM_ITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_NON_ANIM_ITER, GdkPixbufNonAnimIterClass))
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struct _GdkPixbufNonAnimIter {
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GdkPixbufAnimationIter parent_instance;
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GdkPixbufNonAnim *non_anim;
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};
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struct _GdkPixbufNonAnimIterClass {
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GdkPixbufAnimationIterClass parent_class;
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};
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static GType gdk_pixbuf_non_anim_iter_get_type (void) G_GNUC_CONST;
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GType
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gdk_pixbuf_animation_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type) {
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static const GTypeInfo object_info = {
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sizeof (GdkPixbufAnimationClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) NULL,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkPixbufAnimation),
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0, /* n_preallocs */
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(GInstanceInitFunc) NULL,
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};
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object_type = g_type_register_static (G_TYPE_OBJECT,
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"GdkPixbufAnimation",
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&object_info, 0);
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}
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return object_type;
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}
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/**
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* gdk_pixbuf_animation_new_from_file:
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* @filename: Name of file to load, in the GLib file name encoding
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* @error: return location for error
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*
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* Creates a new animation by loading it from a file. The file format is
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* detected automatically. If the file's format does not support multi-frame
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* images, then an animation with a single frame will be created. Possible errors
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* are in the #GDK_PIXBUF_ERROR and #G_FILE_ERROR domains.
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*
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* Return value: A newly-created animation with a reference count of 1, or %NULL
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* if any of several error conditions ocurred: the file could not be opened,
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* there was no loader for the file's format, there was not enough memory to
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* allocate the image buffer, or the image file contained invalid data.
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**/
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GdkPixbufAnimation *
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gdk_pixbuf_animation_new_from_file (const char *filename,
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GError **error)
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{
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GdkPixbufAnimation *animation;
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int size;
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FILE *f;
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guchar buffer [128];
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GdkPixbufModule *image_module;
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gchar *display_name;
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gboolean locked;
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g_return_val_if_fail (filename != NULL, NULL);
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g_return_val_if_fail (error == NULL || *error == NULL, NULL);
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display_name = g_filename_display_name (filename);
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f = g_fopen (filename, "rb");
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if (!f) {
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g_set_error (error,
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G_FILE_ERROR,
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g_file_error_from_errno (errno),
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_("Failed to open file '%s': %s"),
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display_name,
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g_strerror (errno));
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g_free (display_name);
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return NULL;
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}
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size = fread (&buffer, 1, sizeof (buffer), f);
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if (size == 0) {
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g_set_error (error,
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GDK_PIXBUF_ERROR,
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GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
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_("Image file '%s' contains no data"),
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display_name);
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g_free (display_name);
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fclose (f);
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return NULL;
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}
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image_module = _gdk_pixbuf_get_module (buffer, size, filename, error);
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if (!image_module) {
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g_free (display_name);
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fclose (f);
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return NULL;
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}
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if (image_module->module == NULL)
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if (!_gdk_pixbuf_load_module (image_module, error)) {
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g_free (display_name);
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fclose (f);
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return NULL;
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}
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locked = _gdk_pixbuf_lock (image_module);
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if (image_module->load_animation == NULL) {
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GdkPixbuf *pixbuf;
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/* Keep this logic in sync with gdk_pixbuf_new_from_file() */
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fseek (f, 0, SEEK_SET);
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pixbuf = _gdk_pixbuf_generic_image_load (image_module, f, error);
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fclose (f);
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if (pixbuf == NULL && error != NULL && *error == NULL) {
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/* I don't trust these crufty longjmp()'ing image libs
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* to maintain proper error invariants, and I don't
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* want user code to segfault as a result. We need to maintain
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* the invariant that error gets set if NULL is returned.
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*/
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g_warning ("Bug! gdk-pixbuf loader '%s' didn't set an error on failure.",
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image_module->module_name);
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g_set_error (error,
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GDK_PIXBUF_ERROR,
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GDK_PIXBUF_ERROR_FAILED,
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_("Failed to load image '%s': reason not known, probably a corrupt image file"),
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display_name);
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}
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if (pixbuf == NULL) {
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g_free (display_name);
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animation = NULL;
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goto out_unlock;
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}
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animation = gdk_pixbuf_non_anim_new (pixbuf);
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g_object_unref (pixbuf);
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} else {
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fseek (f, 0, SEEK_SET);
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animation = (* image_module->load_animation) (f, error);
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if (animation == NULL && error != NULL && *error == NULL) {
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/* I don't trust these crufty longjmp()'ing
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* image libs to maintain proper error
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* invariants, and I don't want user code to
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* segfault as a result. We need to maintain
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* the invariant that error gets set if NULL
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* is returned.
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*/
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g_warning ("Bug! gdk-pixbuf loader '%s' didn't set an error on failure.",
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image_module->module_name);
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g_set_error (error,
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GDK_PIXBUF_ERROR,
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GDK_PIXBUF_ERROR_FAILED,
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_("Failed to load animation '%s': reason not known, probably a corrupt animation file"),
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display_name);
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}
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fclose (f);
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}
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g_free (display_name);
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out_unlock:
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if (locked)
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_gdk_pixbuf_unlock (image_module);
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return animation;
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}
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#ifdef G_OS_WIN32
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#undef gdk_pixbuf_animation_new_from_file
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GdkPixbufAnimation *
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gdk_pixbuf_animation_new_from_file (const char *filename,
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GError **error)
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{
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gchar *utf8_filename =
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g_locale_to_utf8 (filename, -1, NULL, NULL, error);
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GdkPixbufAnimation *retval;
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if (utf8_filename == NULL)
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return NULL;
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retval = gdk_pixbuf_animation_new_from_file_utf8 (utf8_filename, error);
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g_free (utf8_filename);
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return retval;
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}
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#endif
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/**
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* gdk_pixbuf_animation_ref:
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* @animation: An animation.
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*
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* Adds a reference to an animation.
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*
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* Return value: The same as the @animation argument.
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*
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* Deprecated: Use g_object_ref().
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**/
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GdkPixbufAnimation *
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gdk_pixbuf_animation_ref (GdkPixbufAnimation *animation)
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{
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return (GdkPixbufAnimation*) g_object_ref (animation);
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}
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/**
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* gdk_pixbuf_animation_unref:
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* @animation: An animation.
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*
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* Removes a reference from an animation.
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*
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* Deprecated: Use g_object_unref().
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**/
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void
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gdk_pixbuf_animation_unref (GdkPixbufAnimation *animation)
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{
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g_object_unref (animation);
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}
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/**
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* gdk_pixbuf_animation_is_static_image:
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* @animation: a #GdkPixbufAnimation
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*
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* If you load a file with gdk_pixbuf_animation_new_from_file() and it turns
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* out to be a plain, unanimated image, then this function will return
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* %TRUE. Use gdk_pixbuf_animation_get_static_image() to retrieve
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* the image.
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*
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* Return value: %TRUE if the "animation" was really just an image
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**/
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gboolean
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gdk_pixbuf_animation_is_static_image (GdkPixbufAnimation *animation)
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{
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g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION (animation), FALSE);
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return GDK_PIXBUF_ANIMATION_GET_CLASS (animation)->is_static_image (animation);
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}
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/**
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* gdk_pixbuf_animation_get_static_image:
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* @animation: a #GdkPixbufAnimation
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*
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* If an animation is really just a plain image (has only one frame),
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* this function returns that image. If the animation is an animation,
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* this function returns a reasonable thing to display as a static
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* unanimated image, which might be the first frame, or something more
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* sophisticated. If an animation hasn't loaded any frames yet, this
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* function will return %NULL.
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*
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* Return value: unanimated image representing the animation
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**/
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GdkPixbuf*
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gdk_pixbuf_animation_get_static_image (GdkPixbufAnimation *animation)
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{
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g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION (animation), NULL);
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return GDK_PIXBUF_ANIMATION_GET_CLASS (animation)->get_static_image (animation);
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}
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/**
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* gdk_pixbuf_animation_get_width:
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* @animation: An animation.
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*
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* Queries the width of the bounding box of a pixbuf animation.
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*
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* Return value: Width of the bounding box of the animation.
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**/
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int
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gdk_pixbuf_animation_get_width (GdkPixbufAnimation *animation)
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{
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int width;
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g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION (animation), 0);
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width = 0;
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GDK_PIXBUF_ANIMATION_GET_CLASS (animation)->get_size (animation,
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&width, NULL);
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return width;
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}
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/**
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* gdk_pixbuf_animation_get_height:
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* @animation: An animation.
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*
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* Queries the height of the bounding box of a pixbuf animation.
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*
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* Return value: Height of the bounding box of the animation.
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**/
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int
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gdk_pixbuf_animation_get_height (GdkPixbufAnimation *animation)
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{
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int height;
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g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION (animation), 0);
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height = 0;
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GDK_PIXBUF_ANIMATION_GET_CLASS (animation)->get_size (animation,
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NULL, &height);
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return height;
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}
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/**
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* gdk_pixbuf_animation_get_iter:
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* @animation: a #GdkPixbufAnimation
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* @start_time: time when the animation starts playing
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*
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* Get an iterator for displaying an animation. The iterator provides
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* the frames that should be displayed at a given time.
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* It should be freed after use with g_object_unref().
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*
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* @start_time would normally come from g_get_current_time(), and
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* marks the beginning of animation playback. After creating an
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* iterator, you should immediately display the pixbuf returned by
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* gdk_pixbuf_animation_iter_get_pixbuf(). Then, you should install a
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* timeout (with g_timeout_add()) or by some other mechanism ensure
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* that you'll update the image after
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* gdk_pixbuf_animation_iter_get_delay_time() milliseconds. Each time
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* the image is updated, you should reinstall the timeout with the new,
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* possibly-changed delay time.
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*
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* As a shortcut, if @start_time is %NULL, the result of
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* g_get_current_time() will be used automatically.
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*
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* To update the image (i.e. possibly change the result of
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* gdk_pixbuf_animation_iter_get_pixbuf() to a new frame of the animation),
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* call gdk_pixbuf_animation_iter_advance().
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*
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* If you're using #GdkPixbufLoader, in addition to updating the image
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* after the delay time, you should also update it whenever you
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* receive the area_updated signal and
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* gdk_pixbuf_animation_iter_on_currently_loading_frame() returns
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* %TRUE. In this case, the frame currently being fed into the loader
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* has received new data, so needs to be refreshed. The delay time for
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* a frame may also be modified after an area_updated signal, for
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* example if the delay time for a frame is encoded in the data after
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* the frame itself. So your timeout should be reinstalled after any
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* area_updated signal.
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*
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* A delay time of -1 is possible, indicating "infinite."
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*
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* Return value: an iterator to move over the animation
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**/
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GdkPixbufAnimationIter*
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gdk_pixbuf_animation_get_iter (GdkPixbufAnimation *animation,
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const GTimeVal *start_time)
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{
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GTimeVal val;
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g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION (animation), NULL);
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if (start_time)
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val = *start_time;
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else
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g_get_current_time (&val);
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return GDK_PIXBUF_ANIMATION_GET_CLASS (animation)->get_iter (animation, &val);
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}
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GType
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gdk_pixbuf_animation_iter_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type) {
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static const GTypeInfo object_info = {
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sizeof (GdkPixbufAnimationIterClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) NULL,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkPixbufAnimationIter),
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0, /* n_preallocs */
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(GInstanceInitFunc) NULL,
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};
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object_type = g_type_register_static (G_TYPE_OBJECT,
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"GdkPixbufAnimationIter",
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&object_info, 0);
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}
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return object_type;
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}
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/**
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||
* gdk_pixbuf_animation_iter_get_delay_time:
|
||
* @iter: an animation iterator
|
||
*
|
||
* Gets the number of milliseconds the current pixbuf should be displayed,
|
||
* or -1 if the current pixbuf should be displayed forever. g_timeout_add()
|
||
* conveniently takes a timeout in milliseconds, so you can use a timeout
|
||
* to schedule the next update.
|
||
*
|
||
* Return value: delay time in milliseconds (thousandths of a second)
|
||
**/
|
||
int
|
||
gdk_pixbuf_animation_iter_get_delay_time (GdkPixbufAnimationIter *iter)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION_ITER (iter), -1);
|
||
|
||
return GDK_PIXBUF_ANIMATION_ITER_GET_CLASS (iter)->get_delay_time (iter);
|
||
}
|
||
|
||
/**
|
||
* gdk_pixbuf_animation_iter_get_pixbuf:
|
||
* @iter: an animation iterator
|
||
*
|
||
* Gets the current pixbuf which should be displayed; the pixbuf will
|
||
* be the same size as the animation itself
|
||
* (gdk_pixbuf_animation_get_width(), gdk_pixbuf_animation_get_height()).
|
||
* This pixbuf should be displayed for
|
||
* gdk_pixbuf_animation_iter_get_delay_time() milliseconds. The caller
|
||
* of this function does not own a reference to the returned pixbuf;
|
||
* the returned pixbuf will become invalid when the iterator advances
|
||
* to the next frame, which may happen anytime you call
|
||
* gdk_pixbuf_animation_iter_advance(). Copy the pixbuf to keep it
|
||
* (don't just add a reference), as it may get recycled as you advance
|
||
* the iterator.
|
||
*
|
||
* Return value: the pixbuf to be displayed
|
||
**/
|
||
GdkPixbuf*
|
||
gdk_pixbuf_animation_iter_get_pixbuf (GdkPixbufAnimationIter *iter)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION_ITER (iter), NULL);
|
||
|
||
return GDK_PIXBUF_ANIMATION_ITER_GET_CLASS (iter)->get_pixbuf (iter);
|
||
}
|
||
|
||
/**
|
||
* gdk_pixbuf_animation_iter_on_currently_loading_frame:
|
||
* @iter: a #GdkPixbufAnimationIter
|
||
*
|
||
* Used to determine how to respond to the area_updated signal on
|
||
* #GdkPixbufLoader when loading an animation. area_updated is emitted
|
||
* for an area of the frame currently streaming in to the loader. So if
|
||
* you're on the currently loading frame, you need to redraw the screen for
|
||
* the updated area.
|
||
*
|
||
* Return value: %TRUE if the frame we're on is partially loaded, or the last frame
|
||
**/
|
||
gboolean
|
||
gdk_pixbuf_animation_iter_on_currently_loading_frame (GdkPixbufAnimationIter *iter)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION_ITER (iter), FALSE);
|
||
|
||
return GDK_PIXBUF_ANIMATION_ITER_GET_CLASS (iter)->on_currently_loading_frame (iter);
|
||
}
|
||
|
||
/**
|
||
* gdk_pixbuf_animation_iter_advance:
|
||
* @iter: a #GdkPixbufAnimationIter
|
||
* @current_time: current time
|
||
*
|
||
* Possibly advances an animation to a new frame. Chooses the frame based
|
||
* on the start time passed to gdk_pixbuf_animation_get_iter().
|
||
*
|
||
* @current_time would normally come from g_get_current_time(), and
|
||
* must be greater than or equal to the time passed to
|
||
* gdk_pixbuf_animation_get_iter(), and must increase or remain
|
||
* unchanged each time gdk_pixbuf_animation_iter_get_pixbuf() is
|
||
* called. That is, you can't go backward in time; animations only
|
||
* play forward.
|
||
*
|
||
* As a shortcut, pass %NULL for the current time and g_get_current_time()
|
||
* will be invoked on your behalf. So you only need to explicitly pass
|
||
* @current_time if you're doing something odd like playing the animation
|
||
* at double speed.
|
||
*
|
||
* If this function returns %FALSE, there's no need to update the animation
|
||
* display, assuming the display had been rendered prior to advancing;
|
||
* if %TRUE, you need to call gdk_animation_iter_get_pixbuf() and update the
|
||
* display with the new pixbuf.
|
||
*
|
||
* Returns: %TRUE if the image may need updating
|
||
*
|
||
**/
|
||
gboolean
|
||
gdk_pixbuf_animation_iter_advance (GdkPixbufAnimationIter *iter,
|
||
const GTimeVal *current_time)
|
||
{
|
||
GTimeVal val;
|
||
|
||
g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION_ITER (iter), FALSE);
|
||
|
||
if (current_time)
|
||
val = *current_time;
|
||
else
|
||
g_get_current_time (&val);
|
||
|
||
return GDK_PIXBUF_ANIMATION_ITER_GET_CLASS (iter)->advance (iter, &val);
|
||
}
|
||
|
||
|
||
|
||
static void gdk_pixbuf_non_anim_class_init (GdkPixbufNonAnimClass *klass);
|
||
static void gdk_pixbuf_non_anim_finalize (GObject *object);
|
||
|
||
static gboolean gdk_pixbuf_non_anim_is_static_image (GdkPixbufAnimation *animation);
|
||
static GdkPixbuf* gdk_pixbuf_non_anim_get_static_image (GdkPixbufAnimation *animation);
|
||
static void gdk_pixbuf_non_anim_get_size (GdkPixbufAnimation *anim,
|
||
int *width,
|
||
int *height);
|
||
static GdkPixbufAnimationIter* gdk_pixbuf_non_anim_get_iter (GdkPixbufAnimation *anim,
|
||
const GTimeVal *start_time);
|
||
|
||
|
||
|
||
|
||
|
||
static gpointer non_parent_class;
|
||
|
||
static GType
|
||
gdk_pixbuf_non_anim_get_type (void)
|
||
{
|
||
static GType object_type = 0;
|
||
|
||
if (!object_type) {
|
||
static const GTypeInfo object_info = {
|
||
sizeof (GdkPixbufNonAnimClass),
|
||
(GBaseInitFunc) NULL,
|
||
(GBaseFinalizeFunc) NULL,
|
||
(GClassInitFunc) gdk_pixbuf_non_anim_class_init,
|
||
NULL, /* class_finalize */
|
||
NULL, /* class_data */
|
||
sizeof (GdkPixbufNonAnim),
|
||
0, /* n_preallocs */
|
||
(GInstanceInitFunc) NULL,
|
||
};
|
||
|
||
object_type = g_type_register_static (GDK_TYPE_PIXBUF_ANIMATION,
|
||
"GdkPixbufNonAnim",
|
||
&object_info, 0);
|
||
}
|
||
|
||
return object_type;
|
||
}
|
||
|
||
static void
|
||
gdk_pixbuf_non_anim_class_init (GdkPixbufNonAnimClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
GdkPixbufAnimationClass *anim_class = GDK_PIXBUF_ANIMATION_CLASS (klass);
|
||
|
||
non_parent_class = g_type_class_peek_parent (klass);
|
||
|
||
object_class->finalize = gdk_pixbuf_non_anim_finalize;
|
||
|
||
anim_class->is_static_image = gdk_pixbuf_non_anim_is_static_image;
|
||
anim_class->get_static_image = gdk_pixbuf_non_anim_get_static_image;
|
||
anim_class->get_size = gdk_pixbuf_non_anim_get_size;
|
||
anim_class->get_iter = gdk_pixbuf_non_anim_get_iter;
|
||
}
|
||
|
||
static void
|
||
gdk_pixbuf_non_anim_finalize (GObject *object)
|
||
{
|
||
GdkPixbufNonAnim *non_anim = GDK_PIXBUF_NON_ANIM (object);
|
||
|
||
if (non_anim->pixbuf)
|
||
g_object_unref (non_anim->pixbuf);
|
||
|
||
G_OBJECT_CLASS (non_parent_class)->finalize (object);
|
||
}
|
||
|
||
GdkPixbufAnimation*
|
||
gdk_pixbuf_non_anim_new (GdkPixbuf *pixbuf)
|
||
{
|
||
GdkPixbufNonAnim *non_anim;
|
||
|
||
non_anim = g_object_new (GDK_TYPE_PIXBUF_NON_ANIM, NULL);
|
||
|
||
non_anim->pixbuf = pixbuf;
|
||
|
||
if (pixbuf)
|
||
g_object_ref (pixbuf);
|
||
|
||
return GDK_PIXBUF_ANIMATION (non_anim);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_pixbuf_non_anim_is_static_image (GdkPixbufAnimation *animation)
|
||
{
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static GdkPixbuf*
|
||
gdk_pixbuf_non_anim_get_static_image (GdkPixbufAnimation *animation)
|
||
{
|
||
GdkPixbufNonAnim *non_anim;
|
||
|
||
non_anim = GDK_PIXBUF_NON_ANIM (animation);
|
||
|
||
return non_anim->pixbuf;
|
||
}
|
||
|
||
static void
|
||
gdk_pixbuf_non_anim_get_size (GdkPixbufAnimation *anim,
|
||
int *width,
|
||
int *height)
|
||
{
|
||
GdkPixbufNonAnim *non_anim;
|
||
|
||
non_anim = GDK_PIXBUF_NON_ANIM (anim);
|
||
|
||
if (width)
|
||
*width = gdk_pixbuf_get_width (non_anim->pixbuf);
|
||
|
||
if (height)
|
||
*height = gdk_pixbuf_get_height (non_anim->pixbuf);
|
||
}
|
||
|
||
|
||
static GdkPixbufAnimationIter*
|
||
gdk_pixbuf_non_anim_get_iter (GdkPixbufAnimation *anim,
|
||
const GTimeVal *start_time)
|
||
{
|
||
GdkPixbufNonAnimIter *iter;
|
||
|
||
iter = g_object_new (GDK_TYPE_PIXBUF_NON_ANIM_ITER, NULL);
|
||
|
||
iter->non_anim = GDK_PIXBUF_NON_ANIM (anim);
|
||
|
||
g_object_ref (iter->non_anim);
|
||
|
||
return GDK_PIXBUF_ANIMATION_ITER (iter);
|
||
}
|
||
|
||
|
||
|
||
static void gdk_pixbuf_non_anim_iter_class_init (GdkPixbufNonAnimIterClass *klass);
|
||
static void gdk_pixbuf_non_anim_iter_finalize (GObject *object);
|
||
static int gdk_pixbuf_non_anim_iter_get_delay_time (GdkPixbufAnimationIter *iter);
|
||
static GdkPixbuf* gdk_pixbuf_non_anim_iter_get_pixbuf (GdkPixbufAnimationIter *iter);
|
||
static gboolean gdk_pixbuf_non_anim_iter_on_currently_loading_frame (GdkPixbufAnimationIter *iter);
|
||
static gboolean gdk_pixbuf_non_anim_iter_advance (GdkPixbufAnimationIter *iter,
|
||
const GTimeVal *current_time);
|
||
|
||
|
||
|
||
|
||
|
||
static gpointer non_iter_parent_class;
|
||
|
||
GType
|
||
gdk_pixbuf_non_anim_iter_get_type (void)
|
||
{
|
||
static GType object_type = 0;
|
||
|
||
if (!object_type) {
|
||
static const GTypeInfo object_info = {
|
||
sizeof (GdkPixbufNonAnimIterClass),
|
||
(GBaseInitFunc) NULL,
|
||
(GBaseFinalizeFunc) NULL,
|
||
(GClassInitFunc) gdk_pixbuf_non_anim_iter_class_init,
|
||
NULL, /* class_finalize */
|
||
NULL, /* class_data */
|
||
sizeof (GdkPixbufNonAnimIter),
|
||
0, /* n_preallocs */
|
||
(GInstanceInitFunc) NULL,
|
||
};
|
||
|
||
object_type = g_type_register_static (GDK_TYPE_PIXBUF_ANIMATION_ITER,
|
||
"GdkPixbufNonAnimIter",
|
||
&object_info, 0);
|
||
}
|
||
|
||
return object_type;
|
||
}
|
||
|
||
static void
|
||
gdk_pixbuf_non_anim_iter_class_init (GdkPixbufNonAnimIterClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
GdkPixbufAnimationIterClass *anim_iter_class =
|
||
GDK_PIXBUF_ANIMATION_ITER_CLASS (klass);
|
||
|
||
non_iter_parent_class = g_type_class_peek_parent (klass);
|
||
|
||
object_class->finalize = gdk_pixbuf_non_anim_iter_finalize;
|
||
|
||
anim_iter_class->get_delay_time = gdk_pixbuf_non_anim_iter_get_delay_time;
|
||
anim_iter_class->get_pixbuf = gdk_pixbuf_non_anim_iter_get_pixbuf;
|
||
anim_iter_class->on_currently_loading_frame = gdk_pixbuf_non_anim_iter_on_currently_loading_frame;
|
||
anim_iter_class->advance = gdk_pixbuf_non_anim_iter_advance;
|
||
}
|
||
|
||
static void
|
||
gdk_pixbuf_non_anim_iter_finalize (GObject *object)
|
||
{
|
||
GdkPixbufNonAnimIter *iter = GDK_PIXBUF_NON_ANIM_ITER (object);
|
||
|
||
g_object_unref (iter->non_anim);
|
||
|
||
G_OBJECT_CLASS (non_iter_parent_class)->finalize (object);
|
||
}
|
||
|
||
static int
|
||
gdk_pixbuf_non_anim_iter_get_delay_time (GdkPixbufAnimationIter *iter)
|
||
{
|
||
return -1; /* show only frame forever */
|
||
}
|
||
|
||
static GdkPixbuf*
|
||
gdk_pixbuf_non_anim_iter_get_pixbuf (GdkPixbufAnimationIter *iter)
|
||
{
|
||
return GDK_PIXBUF_NON_ANIM_ITER (iter)->non_anim->pixbuf;
|
||
}
|
||
|
||
|
||
static gboolean
|
||
gdk_pixbuf_non_anim_iter_on_currently_loading_frame (GdkPixbufAnimationIter *iter)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_pixbuf_non_anim_iter_advance (GdkPixbufAnimationIter *iter,
|
||
const GTimeVal *current_time)
|
||
{
|
||
|
||
/* Advancing never requires a refresh */
|
||
return FALSE;
|
||
}
|
||
|