Mercurial > fife-parpg

annotate engine/core/video/fonts/subimagefont.cpp @ 378:64738befdf3b

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bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 11 Jan 2010 23:34:52 +0000
parents 756b895e1dab
children ad7969d9460b
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
0
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
0
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23 #include <string>
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24
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25 // Platform specific includes
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26 #include "util/base/fife_stdint.h"
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27
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28 // 3rd party library includes
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29 #include <SDL.h>
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30
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31 // FIFE includes
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32 // These includes are split up in two parts, separated by one empty line
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33 // First block: files included from the FIFE root src directory
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34 // Second block: files included from the same folder
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35 #include "util/base/exception.h"
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36 #include "util/log/logger.h"
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37 #include "util/structures/rect.h"
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756b895e1dab Merged unicode-support back into trunk.
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38 #include "util/utf8/utf8.h"
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39 #include "video/image.h"
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40 #include "video/renderbackend.h"
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41 #include "video/imagepool.h"
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42
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43 #include "subimagefont.h"
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44
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45 namespace FIFE {
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46 static Logger _log(LM_GUI);
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47
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48 SubImageFont::SubImageFont(const std::string& filename, const std::string& glyphs, ImagePool& pool)
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49 : ImageFontBase(), m_pool(pool) {
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50
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51 FL_LOG(_log, LMsg("guichan_image_font, loading ") << filename << " glyphs " << glyphs);
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52
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53 int image_id = m_pool.addResourceFromFile(filename);
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54 Image& img = dynamic_cast<Image&>(m_pool.get(image_id));
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55 SDL_Surface* surface = img.getSurface();
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56
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57 if( !surface ) {
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58 throw CannotOpenFile(filename);
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59 }
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60
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61 // Make sure we get 32bit RGB
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62 // and copy the Pixelbuffers surface
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63 SDL_Surface *tmp = SDL_CreateRGBSurface(SDL_SWSURFACE,
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64 surface->w,surface->h,32,
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65 RMASK, GMASK, BMASK ,NULLMASK);
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66
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67 SDL_BlitSurface(surface,0,tmp,0);
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68 surface = tmp;
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69
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70 // Prepare the data for extracting the glyphs.
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71 uint32_t *pixels = reinterpret_cast<uint32_t*>(surface->pixels);
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72
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73 int x, w;
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74 x = 0; w=0;
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75
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76 SDL_Rect src;
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77
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78 src.h = surface->h;
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79 src.y = 0;
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80
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81 uint32_t separator = pixels[0];
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82 while(x < surface->w && pixels[x] == separator)
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83 ++x;
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84 uint32_t colorkey = pixels[x];
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85
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86 FL_DBG(_log, LMsg("image_font")
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87 << " glyph separator is "
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88 << pprint(reinterpret_cast<void*>(separator))
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89 << " transparent color is "
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90 << pprint(reinterpret_cast<void*>(colorkey)));
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91
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92 // Disable alpha blending, so that we use colorkeying
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93 SDL_SetAlpha(surface,0,255);
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94 SDL_SetColorKey(surface,SDL_SRCCOLORKEY,colorkey);
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95
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96 // Finally extract all glyphs
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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97 std::string::const_iterator text_it = glyphs.begin();
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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98 while(text_it != glyphs.end()) {
0
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99 w=0;
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100 while(x < surface->w && pixels[x] == separator)
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101 ++x;
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102 if( x == surface->w )
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103 break;
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104
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105 while(x + w < surface->w && pixels[x + w] != separator)
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106 ++w;
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107
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108 src.x = x;
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109 src.w = w;
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110
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111 tmp = SDL_CreateRGBSurface(SDL_SWSURFACE,
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 w,surface->h,32,
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113 RMASK, GMASK, BMASK ,NULLMASK);
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114
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115 SDL_FillRect(tmp,0,colorkey);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 SDL_BlitSurface(surface,&src,tmp,0);
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117
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118 // Disable alpha blending, so that we use colorkeying
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 SDL_SetAlpha(tmp,0,255);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 SDL_SetColorKey(tmp,SDL_SRCCOLORKEY,colorkey);
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121
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122
228
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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123 uint32_t codepoint = utf8::next(text_it, glyphs.end());
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phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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124 m_glyphs[ codepoint ].surface = tmp;
0
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125
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126 x += w;
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127 }
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128
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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129 // Set placeholder glyph
228
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
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130 // This should actually work ith utf8.
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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131 if( m_glyphs.find('?') != m_glyphs.end() ) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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132 m_placeholder = m_glyphs['?'];
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133 } else {
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134 m_placeholder.surface = 0;
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135 }
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136
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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137 mHeight = surface->h;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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138 SDL_FreeSurface(surface);
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139 }
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140
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141
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142 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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143