118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
// Copyright (c) 2016-2018 Kiwano - Nomango
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//
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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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//
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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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//
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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 OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include "Actor.h"
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#include "../base/Resource.h"
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#include "../renderer/RenderTarget.h"
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#include "../renderer/GifImage.h"
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namespace kiwano
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{
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// GIF 精灵
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class KGE_API GifSprite
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: public Actor
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{
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public:
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using DisposalType = GifImage::DisposalType;
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using LoopDoneCallback = Function<void(int)>;
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using DoneCallback = Function<void()>;
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GifSprite();
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GifSprite(
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String const& file_path
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);
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GifSprite(
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Resource const& res
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);
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GifSprite(
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GifImage image
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);
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bool Load(
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String const& file_path
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);
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bool Load(
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Resource const& res
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);
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bool Load(
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GifImage image
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);
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// 设置 GIF 动画循环次数
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inline void SetLoopCount(int loops) { total_loop_count_ = loops; }
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// 设置 GIF 动画每次循环结束回调函数
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inline void SetLoopDoneCallback(LoopDoneCallback const& cb) { loop_cb_ = cb; }
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// 设置 GIF 动画结束回调函数
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inline void SetDoneCallback(DoneCallback const& cb) { done_cb_ = cb; }
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// 重新播放动画
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void RestartAnimation();
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inline LoopDoneCallback GetLoopDoneCallback() const { return loop_cb_; }
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inline DoneCallback GetDoneCallback() const { return done_cb_; }
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void OnRender(Renderer* renderer) override;
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protected:
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void Update(Duration dt) override;
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inline bool IsLastFrame() const { return (next_index_ == 0); }
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inline bool EndOfAnimation() const { return IsLastFrame() && loop_count_ == total_loop_count_ + 1; }
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void ComposeNextFrame();
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void DisposeCurrentFrame();
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void OverlayNextFrame();
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void SaveComposedFrame();
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void RestoreSavedFrame();
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void ClearCurrentFrameArea();
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protected:
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bool animating_;
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int total_loop_count_;
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int loop_count_;
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UINT next_index_;
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Duration frame_delay_;
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Duration frame_elapsed_;
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DisposalType disposal_type_;
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LoopDoneCallback loop_cb_;
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DoneCallback done_cb_;
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GifImage image_;
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Image frame_;
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Rect frame_rect_;
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Image saved_frame_;
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ImageRenderTarget frame_rt_;
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};
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}
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