Edit
kc3-lang/ftgl/src/FTLayout/FTSimpleLayoutImpl.h
sammy
- src/FTLayout/FTSimpleLayoutImpl.h
-
/* * FTGL - OpenGL font library * * Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz> * Copyright (c) 2008 Sam Hocevar <sam@zoy.org> * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef __FTSimpleLayoutImpl__ #define __FTSimpleLayoutImpl__ #include "FTLayoutImpl.h" class FTFont; class FTSimpleLayoutImpl : public FTLayoutImpl { friend class FTSimpleLayout; protected: FTSimpleLayoutImpl(); virtual ~FTSimpleLayoutImpl() {}; virtual FTBBox BBox(const char* string, const int len, FTPoint position); virtual FTBBox BBox(const wchar_t* string, const int len, FTPoint position); virtual void Render(const char *string, const int len, FTPoint position, int renderMode); virtual void Render(const wchar_t *string, const int len, FTPoint position, int renderMode); /** * Render a string of characters and distribute extra space amongst * the whitespace regions of the string. * * @param string A buffer of wchar_t characters to output. * @param len The length of the string. If < 0 then all characters * will be displayed until a null character is encountered. * @param position TODO * @param renderMode Render mode to display * @param extraSpace The amount of extra space to distribute amongst * the characters. */ virtual void RenderSpace(const char *string, const int len, FTPoint position, int renderMode, const float extraSpace); /** * Render a string of characters and distribute extra space amongst * the whitespace regions of the string. * * @param string A buffer of wchar_t characters to output. * @param len The length of the string. If < 0 then all characters * will be displayed until a null character is encountered. * @param position TODO * @param renderMode Render mode to display * @param extraSpace The amount of extra space to distribute amongst * the characters. */ virtual void RenderSpace(const wchar_t *string, const int len, FTPoint position, int renderMode, const float extraSpace); private: /** * Either render a string of characters and wrap lines * longer than a threshold or compute the bounds * of a string of characters when wrapped. The functionality * of this method is exposed by the BBoxWrapped and * RenderWrapped methods. * * @param buf A char string to output. * @param len The length of the string. If < 0 then all characters * will be displayed until a null character is encountered. * @param position TODO * @param renderMode Render mode to display * @param bounds A pointer to a bounds object. If non null * the bounds of the text when laid out * will be stored in bounds. If null the * text will be rendered. */ virtual void WrapText(const char *buf, const int len, FTPoint position, int renderMode, FTBBox *bounds); /** * Either render a string of characters and wrap lines * longer than a threshold or compute the bounds * of a string of characters when wrapped. The functionality * of this method is exposed by the BBoxWrapped and * RenderWrapped methods. * * @param buf A wchar_t style string to output. * @param len The length of the string. If < 0 then all characters * will be displayed until a null character is encountered. * @param position TODO * @param renderMode Render mode to display * @param bounds A pointer to a bounds object. If non null * the bounds of the text when laid out * will be stored in bounds. If null the * text will be rendered. */ virtual void WrapText(const wchar_t *buf, const int len, FTPoint position, int renderMode, FTBBox *bounds); /** * A helper method used by WrapText to either output the text or * compute it's bounds. * * @param buf A pointer to an array of character data. * @param len The length of the string. If < 0 then all characters * will be displayed until a null character is encountered. * @param position TODO * @param renderMode Render mode to display * @param RemainingWidth The amount of extra space left on the line. * @param bounds A pointer to a bounds object. If non null the * bounds will be initialized or expanded by the * bounds of the line. If null the text will be * rendered. If the bounds are invalid (lower > upper) * they will be initialized. Otherwise they * will be expanded. */ void OutputWrapped(const char *buf, const int len, FTPoint position, int renderMode, const float RemainingWidth, FTBBox *bounds); /** * A helper method used by WrapText to either output the text or * compute it's bounds. * * @param buf A pointer to an array of character data. * @param len The length of the string. If < 0 then all characters * will be displayed until a null character is encountered. * @param position TODO * @param renderMode Render mode to display * @param RemainingWidth The amount of extra space left on the line. * @param bounds A pointer to a bounds object. If non null the * bounds will be initialized or expanded by the * bounds of the line. If null the text will be * rendered. If the bounds are invalid (lower > upper) * they will be initialized. Otherwise they * will be expanded. */ void OutputWrapped(const wchar_t *buf, const int len, FTPoint position, int renderMode, const float RemainingWidth, FTBBox *bounds); /** * The font to use for rendering the text. The font is * referenced by this but will not be disposed of when this * is deleted. */ FTFont *currentFont; /** * The maximum line length for formatting text. */ float lineLength; /** * The text alignment mode used to distribute * space within a line or rendered text. */ FTGL::TextAlignment alignment; /** * The height of each line of text expressed as * a percentage of the font's line height. */ float lineSpacing; /* Internal generic BBox() implementation */ template <typename T> inline FTBBox BBoxI(const T* string, const int len, FTPoint position); /* Internal generic Render() implementation */ template <typename T> inline void RenderI(const T* string, const int len, FTPoint position, int renderMode); /* Internal generic RenderSpace() implementation */ template <typename T> inline void RenderSpaceI(const T* string, const int len, FTPoint position, int renderMode, const float extraSpace); /* Internal generic WrapText() implementation */ template <typename T> void WrapTextI(const T* buf, const int len, FTPoint position, int renderMode, FTBBox *bounds); /* Internal generic OutputWrapped() implementation */ template <typename T> void OutputWrappedI(const T* buf, const int len, FTPoint position, int renderMode, const float RemainingWidth, FTBBox *bounds); }; #endif // __FTSimpleLayoutImpl__