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2000-01-21 Federico Mena Quintero <federico@helixcode.com> * gdk-pixbuf/gdk-pixbuf.c (gdk_pixbuf_ref): Return the same pixbuf as the input parameter. * gdk-pixbuf/gdk-pixbuf-animation.c (gdk_pixbuf_animation_ref): Return the same animation as the input parameter.
92 lines
2.5 KiB
Plaintext
92 lines
2.5 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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Animations
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<!-- ##### SECTION Short_Description ##### -->
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Animations as multi-frame structures.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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The GdkPixbuf library provides a simple mechanism to load and
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represent animations, primarily animated GIF files. Animations
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are represented as lists of #GdkPixbufFrame structures. Each
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frame structure contains a #GdkPixbuf structure and information
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about the frame's overlay mode and duration.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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#GdkPixbufLoader
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</para>
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<!-- ##### ENUM GdkPixbufFrameAction ##### -->
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<para>
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Each animation frame can have several things happen to it when the
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next frame is displayed. The #GdkPixbufFrameAction determines this.
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If a frame as marked as #GDK_PIXBUF_FRAME_RETAIN, then the image
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will remain displayed, and will be potentially occluded by the next
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frame. If it is marked as #GDK_PIXBUF_FRAME_DISPOSE, then the
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animation is reverted to the setting before the frame was shown. If
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it is marked as #GDK_PIXBUF_FRAME_REVERT, then the animation is
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reverted to the first image before continuing.
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</para>
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@GDK_PIXBUF_FRAME_RETAIN:
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@GDK_PIXBUF_FRAME_DISPOSE:
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@GDK_PIXBUF_FRAME_REVERT:
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<!-- ##### STRUCT GdkPixbufFrame ##### -->
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<para>
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This structure describes a frame in a #GdkPixbufAnimation. Each
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frame consists of a #GdkPixbuf, an offset of the frame within the
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animation's bounding box, a duration, and an overlay mode or
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action.
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</para>
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@pixbuf: The frame's image contents.
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@x_offset: X offset of the frame inside the animation's bounding box.
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@y_offset: Y offset of the frame inside the animation's bounding box.
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@delay_time: Duration of the frame in milliseconds.
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@action: Overlay mode.
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<!-- ##### STRUCT GdkPixbufAnimation ##### -->
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<para>
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This structure describes an animation, which is represented as a
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list of #GdkPixbufFrame structures.
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</para>
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@ref_count: Reference count.
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@n_frames: Number of frames in the animation.
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@frames: List of #GdkPixbufFrame structures.
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<!-- ##### FUNCTION gdk_pixbuf_animation_new_from_file ##### -->
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<para>
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</para>
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@filename:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_animation_ref ##### -->
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<para>
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</para>
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@animation:
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@Returns:
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<!-- ##### FUNCTION gdk_pixbuf_animation_unref ##### -->
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<para>
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</para>
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@animation: <!--
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Local variables:
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mode: sgml
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sgml-parent-document: ("../gdk-pixbuf.sgml" "book" "refsect2" "")
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End:
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-->
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