mirror of https://github.com/axmolengine/axmol.git
136 lines
3.9 KiB
C++
136 lines
3.9 KiB
C++
/****************************************************************************
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Copyright (c) 2013 Zynga Inc.
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Copyright (c) 2013-2014 Chukong Technologies Inc.
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http://www.cocos2d-x.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 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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****************************************************************************/
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#ifndef _CCFontAtlas_h_
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#define _CCFontAtlas_h_
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#include "base/CCPlatformMacros.h"
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#include "base/CCRef.h"
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#include <string>
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#include <unordered_map>
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NS_CC_BEGIN
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//fwd
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class Font;
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class Texture2D;
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class EventCustom;
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class EventListenerCustom;
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struct FontLetterDefinition
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{
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unsigned short letteCharUTF16;
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float U;
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float V;
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float width;
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float height;
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float offsetX;
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float offsetY;
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int textureID;
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bool validDefinition;
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int xAdvance;
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int clipBottom;
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};
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class CC_DLL FontAtlas : public Ref
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{
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public:
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static const int CacheTextureWidth;
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static const int CacheTextureHeight;
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static const char* EVENT_PURGE_TEXTURES;
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/**
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* @js ctor
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*/
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FontAtlas(Font &theFont);
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/**
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* @js NA
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* @lua NA
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*/
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virtual ~FontAtlas();
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void addLetterDefinition(const FontLetterDefinition &letterDefinition);
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bool getLetterDefinitionForChar(char16_t letteCharUTF16, FontLetterDefinition &outDefinition);
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bool prepareLetterDefinitions(const std::u16string& utf16String);
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inline const std::unordered_map<ssize_t, Texture2D*>& getTextures() const{ return _atlasTextures;}
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void addTexture(Texture2D *texture, int slot);
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float getCommonLineHeight() const;
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void setCommonLineHeight(float newHeight);
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Texture2D* getTexture(int slot);
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const Font* getFont() const;
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/** listen the event that renderer was recreated on Android/WP8
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It only has effect on Android and WP8.
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*/
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void listenRendererRecreated(EventCustom *event);
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/** Removes textures atlas.
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It will purge the textures atlas and if multiple texture exist in the FontAtlas.
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*/
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void purgeTexturesAtlas();
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/** sets font texture parameters:
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- GL_TEXTURE_MIN_FILTER = GL_LINEAR
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- GL_TEXTURE_MAG_FILTER = GL_LINEAR
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*/
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void setAntiAliasTexParameters();
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/** sets font texture parameters:
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- GL_TEXTURE_MIN_FILTER = GL_NEAREST
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- GL_TEXTURE_MAG_FILTER = GL_NEAREST
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*/
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void setAliasTexParameters();
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private:
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void relaseTextures();
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std::unordered_map<ssize_t, Texture2D*> _atlasTextures;
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std::unordered_map<unsigned short, FontLetterDefinition> _fontLetterDefinitions;
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float _commonLineHeight;
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Font * _font;
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// Dynamic GlyphCollection related stuff
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int _currentPage;
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unsigned char *_currentPageData;
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int _currentPageDataSize;
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float _currentPageOrigX;
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float _currentPageOrigY;
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float _letterPadding;
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bool _makeDistanceMap;
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int _fontAscender;
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EventListenerCustom* _rendererRecreatedListener;
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bool _antialiasEnabled;
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bool _rendererRecreate;
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};
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NS_CC_END
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#endif /* defined(__cocos2d_libs__CCFontAtlas__) */
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