gtk2/docs/reference/gdk-pixbuf/tmpl/animation.sgml
Havoc Pennington 518f32d97e contrib subdir
2000-10-06  Havoc Pennington  <hp@redhat.com>

	* Makefile.am (SRC_SUBDIRS): contrib subdir

	* gdk/gdkpixbuf.h: Move GdkPixbufAlphaMode to gdk-pixbuf library,
	so it can be used in Xlib version

	* demos/testpixbuf.c (update_timeout): error checking from 1.0
	tree

	* gtk/gdk-pixbuf-loader.c (gdk_pixbuf_loader_get_pixbuf): Sync
	change from 1.0 tree that returns first frame of animation
	if the loaded file is an animation.

        * contrib: add new directory to hold stuff that comes with GTK+
	but isn't really part of GTK+ (for now, gdk-pixbuf-xlib)

	* configure.in: add contrib/*

2000-10-06  Havoc Pennington  <hp@redhat.com>

	* gdk-pixbuf.h: add GdkPixbufAlphaMode

2000-10-06  Havoc Pennington  <hp@redhat.com>

        This entry is a summary of the merged-in changes from 1.0.
	Relevant original ChangeLog entries are spliced in after
	this entry; the files they refer to are from the 1.0
	gdk-pixbuf sources.

	* pixops/pixops.c (pixops_composite_nearest): sync a small fix
	from 1.0

	* io-xpm.c (xpm_seek_string): add fscanf error check from 1.0
	Add progressive loader from 1.0

	* io-tiff.c (gdk_pixbuf__tiff_image_begin_load): mem leak fixes
	from 1.0 tree

	* io-pnm.c: new version from 1.0 tree

	* io-jpeg.c (gdk_pixbuf__jpeg_image_load): sync from 1.0, use
	malloc not g_malloc

	* io-gif.c (lzw_read_byte): sync from 1.0, change a g_error to
	g_warning
	(gif_get_next_step): return 0 here, sync from 1.0

	* gdk-pixbuf-util.c: sync email address change for Cody
	Russell

2000-09-11  Jeffrey Stedfast  <fejj@helixcode.com>

	* gdk-pixbuf/io-pnm.c: Pretty much totally rewrote again because
	last nights code was still "broken". Should now properly handle
	all error conditions gracefully.

2000-09-10  Jeffrey Stedfast  <fejj@helixcode.com>

	* gdk-pixbuf/io-pnm.c: Rewrote.

2000-09-09  Federico Mena Quintero  <federico@helixcode.com>

	* gdk-pixbuf/pixops/pixops.c (pixops_composite_nearest): Compute
	the correct dest offset.

2000-08-25  Federico Mena Quintero  <federico@helixcode.com>

	* gdk-pixbuf/io-xpm.c: #include <unistd.h>

2000-08-05  Larry Ewing  <lewing@helixcode.com>

	* gdk-pixbuf/io-tiff.c: stop leaking context->tempname.

	* gdk-pixbuf/io-xpm.c: same as above.

2000-07-26  Michael Meeks  <michael@helixcode.com>

	* gdk-pixbuf/io-jpeg.c (gdk_pixbuf__jpeg_image_load): make
	g_malloc a malloc.

2000-07-21  Larry Ewing  <lewing@helixcode.com>

	* gdk-pixbuf/io-xpm.c: add a fake progressive loader so that
	xpm at least supports the progressive interface like the one in
	io-tiff.c. This should be reimplemented as an actual progressive
	loader.

2000-07-19  Jonathan Blandford  <jrb@redhat.com>

	* demo/pixbuf-demo.c (update_timeout): changed scaling level to
	make it look better.
	* gdk-pixbuf/testpixbuf.c (update_timeout): Patch from michael
	meeks to handle errors better.
2000-10-09 17:22:20 +00:00

180 lines
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<!-- ##### SECTION Title ##### -->
Animations
<!-- ##### SECTION Short_Description ##### -->
Animations as multi-frame structures.
<!-- ##### SECTION Long_Description ##### -->
<para>
The &gdk-pixbuf; library provides a simple mechanism to load and
represent animations, primarily animated GIF files. Animations
are represented as lists of #GdkPixbufFrame structures. Each
frame structure contains a #GdkPixbuf structure and information
about the frame's overlay mode and duration.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
#GdkPixbufLoader
</para>
<!-- ##### ENUM GdkPixbufFrameAction ##### -->
<para>
Each animation frame can have several things happen to it when the
next frame is displayed. The #GdkPixbufFrameAction determines
this. These are essentially the overlay modes supported by GIF
animations.
</para>
@GDK_PIXBUF_FRAME_RETAIN: The previous image should remain displayed,
and will potentially be occluded by the new frame.
@GDK_PIXBUF_FRAME_DISPOSE: The animation will be reverted to the state
before the frame was shown.
@GDK_PIXBUF_FRAME_REVERT: The animation will be reverted to the first
frame.
<!-- ##### STRUCT GdkPixbufFrame ##### -->
<para>
This structure describes a frame in a #GdkPixbufAnimation. Each
frame consists of a #GdkPixbuf, an offset of the frame within the
animation's bounding box, a duration, and an overlay mode or
action.
</para>
@pixbuf:
@x_offset:
@y_offset:
@delay_time:
@action:
<!-- ##### STRUCT GdkPixbufAnimation ##### -->
<para>
This structure describes an animation, which is represented as a
list of #GdkPixbufFrame structures.
</para>
@parent_instance:
@n_frames:
@frames:
@width:
@height:
<!-- ##### STRUCT GdkPixbufAnimationClass ##### -->
<para>
</para>
<!-- ##### FUNCTION gdk_pixbuf_animation_new_from_file ##### -->
<para>
</para>
@filename:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_animation_ref ##### -->
<para>
</para>
@animation:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_animation_unref ##### -->
<para>
</para>
@animation:
<!-- ##### FUNCTION gdk_pixbuf_animation_get_frames ##### -->
<para>
</para>
@animation:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_animation_get_width ##### -->
<para>
</para>
@animation:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_animation_get_num_frames ##### -->
<para>
</para>
@animation:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_animation_get_height ##### -->
<para>
</para>
@animation:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_frame_get_pixbuf ##### -->
<para>
</para>
@frame:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_frame_get_action ##### -->
<para>
</para>
@frame:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_frame_get_y_offset ##### -->
<para>
</para>
@frame:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_frame_get_delay_time ##### -->
<para>
</para>
@frame:
@Returns:
<!-- ##### FUNCTION gdk_pixbuf_frame_get_x_offset ##### -->
<para>
</para>
@frame:
@Returns: <!--
Local variables:
mode: sgml
sgml-parent-document: ("../gdk-pixbuf.sgml" "book" "refsect2" "")
End:
-->