1 /* 2 * Copyright (C) 2006-2020 by the Widelands Development Team 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 2 7 * of the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 * 18 */ 19 20 #ifndef WL_GRAPHIC_TEXT_SDL_TTF_FONT_H 21 #define WL_GRAPHIC_TEXT_SDL_TTF_FONT_H 22 23 #include <memory> 24 25 #include <SDL_ttf.h> 26 27 #include "graphic/text/texture_cache.h" 28 #include "graphic/texture.h" 29 30 namespace RT { 31 32 /** 33 * Wrapper object around a font. 34 * 35 * Fonts in our sense are defined by the general font shape (given by the font 36 * name) and the size of the font. Note that Bold and Italic are special in the 37 * regard that we expect that this is already handled by the Font File, so, the 38 * font loader directly loads DejaVuSans-Bold.ttf for example. 39 */ 40 class IFont { 41 public: 42 enum { 43 DEFAULT = 0, 44 BOLD = 1, 45 ITALIC = 2, 46 UNDERLINE = 4, 47 SHADOW = 8, 48 }; ~IFont()49 virtual ~IFont() { 50 } 51 52 virtual void dimensions(const std::string&, int, uint16_t*, uint16_t*) = 0; 53 virtual std::shared_ptr<const Image> 54 render(const std::string&, const RGBColor& clr, int, TextureCache*) = 0; 55 56 virtual uint16_t ascent(int) const = 0; 57 virtual TTF_Font* get_ttf_font() const = 0; 58 }; 59 60 // Implementation of a Font object using SDL_ttf. 61 class SdlTtfFont : public IFont { 62 public: 63 SdlTtfFont(TTF_Font* ttf, const std::string& face, int ptsize, std::string* ttf_memory_block); 64 ~SdlTtfFont() override; 65 66 void dimensions(const std::string&, int, uint16_t* w, uint16_t* h) override; 67 std::shared_ptr<const Image> 68 render(const std::string&, const RGBColor& clr, int, TextureCache*) override; 69 uint16_t ascent(int) const override; get_ttf_font()70 TTF_Font* get_ttf_font() const override { 71 return font_; 72 } 73 74 private: 75 void set_style(int); 76 77 TTF_Font* font_; 78 int style_; 79 const std::string font_name_; 80 const int ptsize_; 81 // Old version of SDLTtf seem to need to keep this around. 82 std::unique_ptr<std::string> ttf_file_memory_block_; 83 }; 84 85 } // namespace RT 86 87 #endif // end of include guard: 88