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79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/*
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Large image displaying library.
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Copyright (C) 2004 Maks Orlovich (maksim@kde.org)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef ANIM_PROVIDER_H
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#define ANIM_PROVIDER_H
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#include <khtml_settings.h>
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class QPainter;
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namespace khtmlImLoad {
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class PixmapPlane;
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class Image;
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/**
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A base class for animation support. This should be implemented by decoders
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wishing to implement animation. When this is installed, paint events
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for the image are redirected here.
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*/
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class AnimProvider
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{
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protected:
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PixmapPlane* frame0;
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PixmapPlane* curFrame;
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Image* image;
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bool shouldSwitchFrame; //Set by AnimTimer
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KHTMLSettings::KAnimationAdvice animationAdvice;
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void nextFrame(); //Helper that goes to next frame or wraps around
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public:
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AnimProvider(PixmapPlane* plane, Image* img):frame0(plane), curFrame(plane),
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image(img), shouldSwitchFrame(false),
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animationAdvice(KHTMLSettings::KAnimationEnabled)
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{}
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void switchFrame();
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virtual ~AnimProvider();
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//Must be implemented to create animation provider for the given
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//plane describing the same animation
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virtual AnimProvider* clone(PixmapPlane* newParentPlane) = 0;
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//Must be implemented to paint the given region. Note that clipping to the
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//overall canvas will be performed already
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virtual void paint(int dx, int dy, QPainter* p, int sx, int sy, int width, int height) = 0;
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/**
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Enables or disables animations
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*/
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void setShowAnimations(KHTMLSettings::KAnimationAdvice);
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};
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}
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#endif
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// kate: indent-width 4; replace-tabs on; tab-width 4; space-indent on;
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