Mercurial > fife-parpg
annotate ext/guichan-0.8.1/include/guichan/imagefont.hpp @ 298:07709bffab8f
*hope i fixed script-without-shebang part 3 the last one
author | LinuxDonald@33b003aa-7bff-0310-803a-e67f0ece8222 |
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date | Sun, 05 Jul 2009 19:11:53 +0000 |
parents | 4a0efb7baf70 |
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rev | line source |
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1 /* _______ __ __ __ ______ __ __ _______ __ __ |
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2 * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ |
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3 * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / |
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4 * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / |
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5 * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / |
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6 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / |
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7 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ |
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8 * |
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9 * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson |
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10 * |
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11 * |
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12 * Per Larsson a.k.a finalman |
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13 * Olof Naessén a.k.a jansem/yakslem |
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14 * |
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15 * Visit: http://guichan.sourceforge.net |
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16 * |
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17 * License: (BSD) |
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18 * Redistribution and use in source and binary forms, with or without |
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19 * modification, are permitted provided that the following conditions |
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20 * are met: |
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21 * 1. Redistributions of source code must retain the above copyright |
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22 * notice, this list of conditions and the following disclaimer. |
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23 * 2. Redistributions in binary form must reproduce the above copyright |
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24 * notice, this list of conditions and the following disclaimer in |
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25 * the documentation and/or other materials provided with the |
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26 * distribution. |
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27 * 3. Neither the name of Guichan nor the names of its contributors may |
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28 * be used to endorse or promote products derived from this software |
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29 * without specific prior written permission. |
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30 * |
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31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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35 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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36 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
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37 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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38 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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39 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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40 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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41 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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42 */ |
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43 |
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44 #ifndef GCN_IMAGEFONT_HPP |
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45 #define GCN_IMAGEFONT_HPP |
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46 |
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47 #include <string> |
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48 |
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49 #include "guichan/font.hpp" |
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50 #include "guichan/platform.hpp" |
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51 #include "guichan/rectangle.hpp" |
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52 |
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53 namespace gcn |
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54 { |
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55 class Color; |
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56 class Graphics; |
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57 class Image; |
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58 |
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59 /** |
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60 * A font using an image containing the font data. ImageFont can be used |
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61 * with any supported by the current used ImageLoader. |
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62 * |
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63 * These are two examples of an image containing a font. |
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64 * \image html imagefontexample.bmp |
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65 * \image html imagefontexample2.bmp |
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66 * |
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67 * The Image font format works like this: The first pixel, the pixal at |
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68 * coordinate (0,0), tells which color to look for when seperating glyphs. |
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69 * You create an image with your glyphs and simple separates them with |
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70 * the seperation color. When you create your image font you supply the |
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71 * constructor with the glyphs present in your image. |
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72 * |
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73 * To create an ImageFont from the first image example above the following |
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74 * constructor call should be made: |
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75 * @code gcn::ImageFont imageFont("fixedfont_big.bmp"," abcdefghijklmno\ |
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76 pqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"); @endcode |
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77 * |
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78 * Note worthy is that the first glyph actually gives the width of space. |
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79 * Glyphs can, as seen in the second image example above, be seperated with |
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80 * horizontal lines making it possible to draw glyphs on more then one |
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81 * line in the image. However, these vertical lines must have a height of |
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82 * one pixel! |
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83 */ |
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84 class GCN_CORE_DECLSPEC ImageFont: public Font |
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85 { |
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86 public: |
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87 |
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88 /** |
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89 * Constructor. Takes an image file containing the font and |
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90 * a string containing the glyphs. The glyphs in the string should |
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91 * be in the same order as they appear in the font image. |
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92 * |
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93 * @param filename The filename of the image. |
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94 * @param glyphs The glyphs found in the image. |
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95 * @throws Exception when glyph list is incorrect or the font file is |
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96 * corrupt or if no ImageLoader exists. |
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97 */ |
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98 ImageFont(const std::string& filename, const std::string& glyphs); |
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99 |
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100 /** |
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101 * Constructor. Takes an image containing the font and |
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102 * a string containing the glyphs. The glyphs in the string should |
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103 * be in the same order as they appear in the font image. |
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104 * The image will be deleted in the destructor. |
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105 * |
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106 * @param image The image with font glyphs. |
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107 * @param glyphs The glyphs found in the image. |
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108 * @throws Exception when glyph list is incorrect or the font image is |
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109 * is missing. |
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110 */ |
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111 ImageFont(Image* image, const std::string& glyphs); |
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112 |
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113 /** |
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114 * Constructor. Takes an image file containing the font and |
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115 * two boundaries of ASCII values. The font image should include |
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116 * all glyphs specified with the boundaries in increasing ASCII |
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117 * order. The boundaries are inclusive. |
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118 * |
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119 * @param filename The filename of the image. |
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120 * @param glyphsFrom The ASCII value of the first glyph found in the |
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121 * image. |
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122 * @param glyphsTo The ASCII value of the last glyph found in the |
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123 * image. |
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124 * @throws Exception when glyph bondaries are incorrect or the font |
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125 * file is corrupt or if no ImageLoader exists. |
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126 */ |
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127 ImageFont(const std::string& filename, |
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128 unsigned char glyphsFrom=32, |
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129 unsigned char glyphsTo=126); |
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130 |
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131 /** |
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132 * Destructor. |
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133 */ |
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134 virtual ~ImageFont(); |
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135 |
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136 /** |
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137 * Draws a glyph. |
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138 * |
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139 * NOTE: You normally won't use this function to draw text since |
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140 * the Graphics class contains better functions for drawing |
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141 * text. |
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142 * |
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143 * @param graphics A graphics object used for drawing. |
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144 * @param glyph A glyph to draw. |
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145 * @param x The x coordinate where to draw the glyph. |
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146 * @param y The y coordinate where to draw the glyph. |
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147 * @return The width of the glyph in pixels. |
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148 */ |
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149 virtual int drawGlyph(Graphics* graphics, unsigned char glyph, |
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150 int x, int y); |
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151 |
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152 /** |
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153 * Sets the space between rows in pixels. Default is 0 pixels. |
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154 * The space can be negative. |
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155 * |
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156 * @param spacing The space between rows in pixels. |
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157 * @see getRowSpacing |
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158 */ |
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159 virtual void setRowSpacing(int spacing); |
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160 |
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161 /** |
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162 * Gets the space between rows in pixels. |
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163 * |
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164 * @return The space between rows in pixels. |
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165 * @see setRowSpacing |
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166 */ |
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167 virtual int getRowSpacing(); |
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168 |
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169 /** |
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170 * Sets the spacing between glyphs in pixels. Default is 0 pixels. |
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171 * The space can be negative. |
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172 * |
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173 * @param spacing The glyph space in pixels. |
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174 * @see getGlyphSpacing |
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175 */ |
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176 virtual void setGlyphSpacing(int spacing); |
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177 |
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178 /** |
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179 * Gets the spacing between letters in pixels. |
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180 * |
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181 * @return the spacing. |
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182 * @see setGlyphSpacing |
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183 */ |
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184 virtual int getGlyphSpacing(); |
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185 |
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186 /** |
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187 * Gets a width of a glyph in pixels. |
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188 * |
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189 * @param glyph The glyph which width will be returned. |
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190 * @return The width of a glyph in pixels. |
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191 */ |
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192 virtual int getWidth(unsigned char glyph) const; |
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193 |
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194 |
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195 // Inherited from Font |
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196 |
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197 virtual int getWidth(const std::string& text) const; |
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198 |
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199 virtual void drawString(Graphics* graphics, const std::string& text, |
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200 int x, int y); |
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201 |
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202 virtual int getHeight() const; |
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203 |
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204 virtual int getStringIndexAt(const std::string& text, int x); |
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205 |
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206 protected: |
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207 /** |
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208 * Scans for a certain glyph. |
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209 * |
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210 * @param glyph The glyph to scan for. Used for exception messages. |
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211 * @param x The x coordinate where to begin the scan. The coordinate |
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212 * will be updated with the end x coordinate of the glyph |
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213 * when the scan is complete. |
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214 * @param y The y coordinate where to begin the scan. The coordinate |
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215 * will be updated with the end y coordinate of the glyph |
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216 * when the scan is complete. |
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217 * @param separator The color separator to look for where the glyph ends. |
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218 * @return A rectangle with the found glyph dimension in the image |
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219 * with the font. |
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220 * @throws Exception when no glyph is found. |
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221 */ |
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222 Rectangle scanForGlyph(unsigned char glyph, |
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223 int x, |
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224 int y, |
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225 const Color& separator); |
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226 |
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227 /** |
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228 * Holds the glyphs areas in the image. |
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229 */ |
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230 Rectangle mGlyph[256]; |
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231 |
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232 /** |
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233 * Holds the height of the image font. |
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234 */ |
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235 int mHeight; |
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236 |
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237 /** |
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238 * Holds the glyph spacing of the image font. |
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239 */ |
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240 int mGlyphSpacing; |
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241 |
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242 /** |
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243 * Holds the row spacing of the image font. |
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244 */ |
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245 int mRowSpacing; |
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246 |
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247 /** |
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248 * Holds the image with the font data. |
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249 */ |
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250 Image* mImage; |
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251 |
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252 /** |
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253 * Holds the filename of the image with the font data. |
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254 */ |
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255 std::string mFilename; |
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256 }; |
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257 } |
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258 |
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259 #endif // end GCN_IMAGEFONT_HPP |