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1 /* layout2.cc
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2 * テキストの禁則処理、レイアウトなどを行う
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3 */
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4 /*
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5 * Copyright (c) 2004-2006 Kazunori "jagarl" Ueno
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6 * All rights reserved.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions
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10 * are met:
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11 * 1. Redistributions of source code must retain the above copyright
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12 * notice, this list of conditions and the following disclaimer.
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13 * 2. Redistributions in binary form must reproduce the above copyright
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14 * notice, this list of conditions and the following disclaimer in the
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15 * documentation and/or other materials provided with the distribution.
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16 * 3. The name of the author may not be used to endorse or promote products
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17 * derived from this software without specific prior written permission.
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18 *
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19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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29 */
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30
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31 #include<vector>
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32 #include<map>
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33 #include<iostream>
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34
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35 using namespace std;
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36
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37 #include"font.h"
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38 #include"text.h"
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39
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40 const int line_skip = 1; // 行と行の間の間隔
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41 const int ruby_textskip = 0; // 文字とルビの間の間隔
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42 const int ruby_lineskip = 1; // ルビがあるときに行間に加える値
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43 const double ruby_scale = 0.4; // ルビのスケール
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44
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45 class TextGlyphStreamHelper;
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46
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47 enum KinsokuType { KinsokuHead = 1, KinsokuTail = 2};
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48 static int kinsoku_table1[] = {
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49 /* 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 */
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50 0,0,2,2,2,2,0,0, /* Ｘ 、。，．・： */
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51 0,2,2,0,0,0,0,0, /* ；？！゛゜´｀¨ */
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52 0,0,0,0,0,0,0,0, /* ＾￣＿ヽヾゝゞ〃 */
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53 0,0,0,0,2,0,0,0, /* 仝々〆〇ー―‐／ */
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54 0,2,0,0,2,2,1,2, /* ＼〜‖｜…‥‘’ */
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55 1,2,1,2,1,2,1,2, /* “”（）〔〕［］ */
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56 1,2,1,2,1,2,1,2, /* ｛｝〈〉《》「」 */
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57 1,2,1,2,0,0,0,0, /* 『』【】＋−±× */
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58 0,0,0,0,0,0,0,0, /* ÷＝≠＜＞≦≧∞ */
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59 0,0,0,0,0,0,0,0, /* ∴♂♀°′″℃￥ */
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60 0,0,0,0,0,0,0,0, /* ＄¢£％＃＆＊＠ */
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61 0,0,0,0,0,0,0,0, /* §☆★○●◎◇Ｘ */
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62 0
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63 };
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64 static int kinsoku_table2[] = {
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65 0,2,0,2,0,2,0,2,0,2,0,0,0,0,0,0, /* ぁあぃいぅうぇえぉおかがきぎく */
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66 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ぐけげこごさざしじすずせぜそぞた */
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67 0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0, /* だちぢっつづてでとどなにぬねのは */
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68 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ばぱひびぴふぶぷへべぺほぼぽまみ */
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69 0,0,0,2,0,2,0,2,0,0,0,0,0,0,2,0, /* むめもゃやゅゆょよらりるれろゎわ */
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70 0,0,0,0,0,2,2,0,0,0,0,0,0,0,0,0, /* ゐゑをんヴヵヶ */
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71 0
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72 };
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73
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74 inline int Kinsoku(int code) {
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75 if ( (code&0xff80) == 0xa180) return kinsoku_table1[ (code&0xff) - 0xa0];
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76 if ( (code&0xfe80) == 0xa480) return kinsoku_table2[ (code&0xff) - 0xa0]; /* code = 0xa400 / 0xa500 */
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77 return 0;
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78 }
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79
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80 class TextGlyphStreamHelper {
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81 typedef TextStream::Iterator Iterator;
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82 typedef TextGlyphStream::iterator iterator;
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83
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84 TextGlyphStream* data;
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85
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86 // information for rendering
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87 unsigned char r, g, b;
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88 XKFont::Face* face;
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89 XKFont::Face* ruby_face;
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90 XKFont::Font* font;
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91
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92 public:
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93 int min_lineheight;
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94 TextGlyphStreamHelper(XKFont::Font* font);
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95 // helper functions
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96 void Init(TextGlyphStream* data);
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97 Iterator Add(int& x, Iterator begin, Iterator end, int max_x = 0);
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98 Iterator AddRuby(int& x, Iterator begin, Iterator end);
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99 int CharWidth(int code);
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100 void SetGroup(iterator begin, iterator end);
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101 void CalcHeight(int& ascent, int& descent, iterator begin, iterator end);
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102 void AdjustPosition(int xstart_add, int xend_add, int y_add, iterator begin, iterator end);
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103 };
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104
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105 TextGlyphStreamHelper::TextGlyphStreamHelper(XKFont::Font* __font) {
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106 font = __font;
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107 face = font->FaceLoad(1.0);
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108 ruby_face = 0;
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109 r = 255; g = 255; b = 255;
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110 min_lineheight = font->vsize;
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111 }
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112
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113 void TextGlyphStreamHelper::Init(TextGlyphStream* __data) {
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114 r = 255; g = 255; b = 255;
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115 face = font->FaceLoad(1.0);
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116 data = __data;
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117 data->clear();
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118 data->font = font;
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119 }
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120
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121 TextGlyphStreamHelper::Iterator
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122 TextGlyphStreamHelper::Add(int& x, TextGlyphStreamHelper::Iterator begin, TextGlyphStreamHelper::Iterator end, int max_x) {
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123 /* text を glyph に変換する */
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124 TextGlyph gl;
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125 Iterator it;
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126 gl.x = x; gl.y = 0; gl.r = r; gl.g = g; gl.b = b; gl.flag = TextGlyph::Flag(0); gl.is_rev = false;
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127 for (it = begin; it != end; it++) {
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128 if (it->type != TextElem::glyph) {
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129 if (it->type == TextElem::color) {
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130 gl.r = r = it->impl.Color.r;
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131 gl.g = g = it->impl.Color.g;
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132 gl.b = b = it->impl.Color.b;
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133 } else if (it->type == TextElem::size) {
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134 face = font->FaceLoad(it->impl.Size.scale);
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135 } else if (it->type == TextElem::escape) {
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136 x = gl.x;
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137 return it;
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138 }
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139 continue;
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140 }
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141 try {
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142 gl.glyph = face->GlyphLoad(it->impl.Glyph.code);
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143 if (max_x > 0 && gl.x + gl.glyph->advance.x > max_x) {
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144 x = gl.x;
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145 return it;
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146 }
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147 if ( Kinsoku(it->impl.Glyph.code) == KinsokuTail)
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148 gl.flag = TextGlyph::Flag(gl.flag | TextGlyph::Kinsoku);
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149 else
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150 gl.flag = TextGlyph::Flag(0);
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151 data->push_back(gl);
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152 gl.x += gl.glyph->advance.x;
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153 } catch(...) {}
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154 }
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155 x = gl.x;
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156 return it;
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157 }
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158
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159 TextGlyphStreamHelper::Iterator TextGlyphStreamHelper::AddRuby(int& x, TextGlyphStreamHelper::Iterator sbegin, TextGlyphStreamHelper::Iterator send) {
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160 Iterator it;
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161 it = sbegin;
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162 if (it == send) return it;
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163 if (it->type != TextElem::escape || it->impl.Escape.type != TextElem::ruby_start) return sbegin;
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164 it++;
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165 /* まず、本文描画 */
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166 int str_firstpos = data->size();
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167 int str_width = 0;
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168 it = Add(str_width, it, send);
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169 if (it == send || it->type != TextElem::escape || it->impl.Escape.type != TextElem::ruby_startruby) {
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170 // ありえないはずだが、取り合えずなにもしないで終了
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171 cerr << "TextGlyphStream::AddRuby : invalid operation; fallback to the upeer level"<<endl;
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172 data->erase(data->begin()+str_firstpos, data->end());
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173 return sbegin+1;
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174 }
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175 it++;
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176 int str_lastpos = data->size()-1;
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177 TextGlyph& str_first = data->begin()[str_firstpos];
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178 TextGlyph& str_last = data->back();
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179 // 次に、フォントを取りかえてルビ描画
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180 int ruby_firstpos = data->size();
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181 XKFont::Face* save_font = face;
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182 if (ruby_face == 0) ruby_face = font->FaceLoad(ruby_scale);
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183 face = ruby_face;
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184 int ruby_width = 0;
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185 it = Add(ruby_width, it, send);
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186 if (it->type != TextElem::escape || it->impl.Escape.type != TextElem::ruby_end) {
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187 /* ありえないはずだが、取り合えずなにもしないで終了 */
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188 cerr << "TextGlyphStream::AddRuby : invalid operation; fallback to the upeer level"<<endl;
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189 data->erase(data->begin()+str_firstpos, data->end());
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190 return sbegin+1;
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191 }
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192 it++;
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193 face = save_font;
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194 TextGlyph& ruby_first = (*data)[ruby_firstpos];
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195 TextGlyph& ruby_last = data->back();
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196
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197 /* ルビを移動すべき高さを求める */
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198 int dummy, str_ascent, ruby_descent;
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199 CalcHeight(str_ascent, dummy, data->begin()+str_firstpos, data->begin()+ruby_firstpos);
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200 CalcHeight(dummy, ruby_descent, data->begin()+ruby_firstpos, data->end());
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201 int ruby_height = str_ascent + ruby_descent + ruby_textskip;
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202
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203 /* センタリングした場合の、ルビの左側、右側のマージン */
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204 int leftmergin, rightmergin;
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205 leftmergin = str_first.glyph->advance.x/2 - (ruby_first.glyph->advance.x+1)/2;
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206 rightmergin = str_last.glyph->advance.x/2 - (ruby_last.glyph->advance.x+1)/2;
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207
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208 /* ルビ、本文の横方向の移動 */
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209 int ruby_xstart_add = 0, ruby_xend_add = 0, str_xstart_add=0, str_xend_add = 0;
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210 if (ruby_width+leftmergin+rightmergin <= str_width) { // ルビの方が小さい
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211 ruby_xstart_add = leftmergin;
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212 ruby_xend_add = str_width-rightmergin-ruby_width;
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213 } else if (ruby_width <= str_width) { // マージンを減らす必要あり
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214 leftmergin = (str_width-ruby_width)/2;
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215 ruby_xstart_add = leftmergin;
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216 ruby_xend_add = str_width-leftmergin-ruby_width;
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217 } else { // ルビの方が大きい
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218 int str_count = ruby_firstpos - str_firstpos;
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219 str_xstart_add = ruby_width/str_count/2 - str_first.glyph->advance.x/2;
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220 str_xend_add = (ruby_width-str_width) - (ruby_width/str_count/2-str_last.glyph->advance.x/2);
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221 str_width = ruby_width;
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222 }
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223 AdjustPosition(str_xstart_add+x, str_xend_add+x, 0, data->begin()+str_firstpos, data->begin()+ruby_firstpos);
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224 AdjustPosition(ruby_xstart_add+x, ruby_xend_add+x, -ruby_height, data->begin()+ruby_firstpos, data->end());
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225
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226 /* 本文が一文字ずつ表示されるように glyph の順番を入れかえ、グループ化 */
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227 vector<TextGlyph> save;
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228 save.assign(data->begin()+str_firstpos, data->end());
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229 iterator it_str = save.begin();
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230 iterator it_ruby = save.begin()+(ruby_firstpos-str_firstpos);
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231 iterator dit = data->begin()+str_firstpos;
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232 int str_count = it_ruby-it_str;
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233 int ruby_count = save.end()-it_ruby;
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234 int i,j = 0;
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235 for (i=0; i<str_count; i++) {
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236 iterator charstart = dit;
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237 int jend = (i+1)*ruby_count/str_count;
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238 for (; j<jend; j++) {
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239 *dit++ = *it_ruby++;
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240 }
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241 *dit++ = *it_str++;
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242 SetGroup(charstart, dit);
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243 }
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244 x += str_width;
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245 return it;
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246 }
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247
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248
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249 void TextGlyphStreamHelper::SetGroup(TextGlyphStreamHelper::iterator begin, TextGlyphStreamHelper::iterator end) {
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250 iterator it;
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251 for (it = begin; it+1 != end; it++)
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252 it->flag = TextGlyph::Flag(it->flag |TextGlyph::Group);
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253 it->flag = TextGlyph::Flag(it->flag & ~TextGlyph::Group);
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254 return;
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255 }
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256
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257 void TextGlyphStreamHelper::AdjustPosition(int xstart_add, int xend_add, int y_add, TextGlyphStreamHelper::iterator begin, TextGlyphStreamHelper::iterator end) {
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258 iterator it;
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259 /* 文字数を数える */
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260 int total_count = 0;
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261 for (it = begin; it != end; it++) {
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262 if (it->flag & TextGlyph::Group) continue;
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263 total_count++;
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264 }
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265 /* 文字間のギャップを変更 */
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266 int incr = 0;
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267 if (total_count != 1) incr = (xend_add - xstart_add) * 256 / (total_count-1);
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268 int cur = xstart_add * 256;
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269 for (it = begin; it != end; it++) {
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270 it->x += cur / 256;
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271 it->y += y_add;
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272 if (it->flag & TextGlyph::Group) continue;
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273 cur += incr;
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274 }
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275 return;
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276 }
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277 void TextGlyphStreamHelper::CalcHeight(int& ascent_r, int& descent_r, TextGlyphStreamHelper::iterator begin, TextGlyphStreamHelper::iterator end) {
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278 iterator it;
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279 /* 最大の descent, ascent を計算 */
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280 int ascent = 0;
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281 int descent = 0;
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282 for (it = begin; it != end; it++) {
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283
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284 int y_top = it->y - it->glyph->bitmap_top;
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285 int y_bottom = it->y + it->glyph->bitmap.rows - it->glyph->bitmap_top;
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286
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287 if (descent < y_bottom) descent = y_bottom;
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288 if (ascent < -y_top) ascent = -y_top;
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289 }
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290 ascent_r = ascent;
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291 descent_r = descent;
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292 return;
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293 }
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294
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295 int TextGlyphStreamHelper::CharWidth(int code) {
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296 try {
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297 XKFont::Glyph* g = face->GlyphLoad(code);
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298 return g->advance.x;
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299 } catch(...) {
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300 return 0;
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301 }
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302 }
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303
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304 class TextHorizLayout {
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305 typedef TextStream::Iterator Iterator;
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306
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307 Iterator pos;
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308 Iterator end;
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309 TextGlyphStream* data;
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310 TextGlyphStreamHelper helper;
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311 int tab_width;
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312 int cur_y;
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313
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314 void SetName(void);
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315 void SetLineHead(void);
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316 void MakeLine(int line_first, int width, vector<int>& lineheights);
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317 public:
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318 TextHorizLayout(XKFont::Font* font);
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319 void Layout(TextStream& stream, TextGlyphStream& glyph, vector<int>& lineheights, int width);
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320 };
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321
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322 TextHorizLayout::TextHorizLayout(XKFont::Font* font) :
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323 helper(font), tab_width(0), cur_y(0) {
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324 }
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325
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326 void TextHorizLayout::Layout(TextStream& stream, TextGlyphStream& glyph, vector<int>& lineheights, int width) {
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327 pos = stream.container.begin();
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328 end = stream.container.end();
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329 data = &glyph;
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330
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331 helper.Init(data);
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332 tab_width = 0;
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333 cur_y = 0;
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334 int prev_y = 0;
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335 int line_start = glyph.size();
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336 while(pos != end) {
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337 /*
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338 if (pos->type == TextElem::glyph) { int c = pos->impl.Glyph.code; char cc[3]={0,0,0};cc[0]=c>>8;cc[1]=c;cout<<"glyph "<<cc<<endl;}
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339 if (pos->type == TextElem::escape) { cout<<"escape "<<pos->impl.Escape.type<<endl;}
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340 */
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341 SetName();
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342 SetLineHead();
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343 MakeLine(line_start, width, lineheights);
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344 if (line_start != glyph.size()) {
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345 data->back().flag = TextGlyph::Flag(data->back().flag | TextGlyph::PhraseEnd | TextGlyph::LineEnd);
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346 }
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347 prev_y = cur_y;
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348 if (pos != end && pos->type == TextElem::escape && pos->impl.Escape.type == TextElem::ret) pos++;
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349 line_start = glyph.size();
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350 }
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351 return;
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352 }
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353
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354 void TextHorizLayout::SetName(void) {
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355 Iterator it;
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356
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357 tab_width = 0;
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358 /* 行頭が名前なら、処理開始 */
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359 for (; pos != end; pos++) {
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360 if (pos->type == TextElem::escape || pos->type == TextElem::glyph) break;
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361 int x = 0;
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362 helper.Add(x, pos, pos+1);
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363 }
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364
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365 if (pos->type != TextElem::escape || pos->impl.Escape.type != TextElem::name_start) return;
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366
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367 /* 名前をセットし、行頭の「の分を含めてタブ幅を設定する */
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368 pos++;
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369 for (it = pos; it != end; it++) {
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370 if (it->type == TextElem::escape && it->impl.Escape.type == TextElem::name_end) break;
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371 }
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372 if (it == end) return;
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373 int line_firstpos = data->size();
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374 pos = helper.Add(tab_width, pos, it);
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375 pos++;
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376 helper.SetGroup(data->begin() + line_firstpos, data->end());
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377
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378 // 行頭の「分を開ける
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379 try {
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380 tab_width += helper.CharWidth(0xa1d6); /* 「 */
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381 } catch(...) {}
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382
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383 return;
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384 };
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385
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386 void TextHorizLayout::SetLineHead(void) {
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387
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388 /* 行頭は 「などか？ */
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389
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390 for (; pos != end; pos++) {
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391 if (pos->type == TextElem::escape || pos->type == TextElem::glyph) break;
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392 int x = 0;
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393 helper.Add(x, pos, pos+1);
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394 }
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395 if (pos->type != TextElem::glyph || Kinsoku(pos->impl.Glyph.code) != KinsokuHead) return;
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396
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397 /* 「なので、処理する */
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398 if (tab_width != 0) tab_width -= helper.CharWidth(pos->impl.Glyph.code);
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|
399 int line_firstpos = data->size();
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400 pos = helper.Add(tab_width, pos, pos+1);
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|
401 return;
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|
|
402 }
|
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|
403
|
|
|
404 void TextHorizLayout::MakeLine(int line_start, int width, vector<int>& lineheights) {
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405
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|
406 int x = tab_width;
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|
407 /* まず、全文字描画する */
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|
408 while(pos != end) {
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|
409 pos = helper.Add(x, pos, end);
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|
410 if (pos->type == TextElem::escape && pos->impl.Escape.type == TextElem::ruby_start) {
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|
411 pos = helper.AddRuby(x, pos, end);
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|
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412 }
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|
|
413 if (pos != end && pos->type == TextElem::escape) {
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|
414 if (pos->impl.Escape.type == TextElem::ret) break;
|
|
|
415 if (pos->impl.Escape.type != TextElem::ruby_start) pos++;
|
|
|
416 }
|
|
|
417 }
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|
|
418 /* 行に分割していく */
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|
|
419 TextGlyphStream::iterator it_start = data->begin() + line_start;
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|
|
420 TextGlyphStream::iterator it_end = data->end();
|
|
|
421 TextGlyphStream::iterator it = it_start;
|
|
|
422
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|
|
423 TextGlyphStream::iterator group_head = it_start;
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|
|
424 int xstart = tab_width;
|
|
|
425 int xend = width;
|
|
|
426 while(it != it_end) {
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|
|
427 // この行の終わりを決める
|
|
|
428 bool is_ruby = false;
|
|
|
429 TextGlyphStream::iterator it_line_start = it;
|
|
|
430 for (; it != it_end; it++) {
|
|
|
431 if (it->x + it->glyph->advance.x > xend) break;
|
|
|
432 if (it->flag & TextGlyph::Group) is_ruby = true;
|
|
|
433 if (!(it->flag & TextGlyph::Group)) group_head = it;
|
|
|
434 }
|
|
|
435 // 水平移動の大きさを決める。デフォルトでタブ位置まで戻す
|
|
|
436 int xadd_start = -xstart + tab_width;
|
|
|
437 int xadd_end = xadd_start;
|
|
|
438 // it == 次行の先頭なので、今行の末尾へ戻す
|
|
|
439 // ただし、 最低一文字の表示は保証
|
|
|
440 if (it != it_line_start && it != it_line_start+1 && it != it_end) it--;
|
|
|
441 if (it != it_end) {
|
|
|
442 // グループ化されている文字で終了したら、前の文字に戻す
|
|
|
443 if (it->flag & TextGlyph::Group) it = group_head;
|
|
|
444 // 次が行頭禁則文字ならこの行に入れる
|
|
|
445 if ( (it+1) != it_end && (it+1)->flag & TextGlyph::Kinsoku) it++;
|
|
|
446 // 移動する大きさを決める
|
|
|
447 // 行端ぞろえ、行末文字なら半文字分だけ突き出る
|
|
|
448 int glyph_xend = it->x + it->glyph->advance.x;
|
|
|
449 if (it != it_line_start && (it-1)->flag & TextGlyph::Group) { // グループ化文字の場合、１文字前も見る
|
|
|
450 if (glyph_xend < (it-1)->x + (it-1)->glyph->advance.x)
|
|
|
451 glyph_xend = (it-1)->x + (it-1)->glyph->advance.x;
|
|
|
452 }
|
|
|
453 xadd_end += xend - glyph_xend;
|
|
|
454 if (it->flag & TextGlyph::Kinsoku)
|
|
|
455 xadd_end += it->glyph->advance.x / 2;
|
|
|
456 }
|
|
|
457 if (it != it_end) {
|
|
|
458 it->flag = TextGlyph::Flag(it->flag | TextGlyph::LineEnd);
|
|
|
459 it++; // it == 次行の先頭へ
|
|
|
460 }
|
|
|
461 int ascent, descent;
|
|
|
462 helper.CalcHeight(ascent, descent, it_start, it);
|
|
|
463 if (ascent+descent < helper.min_lineheight) {
|
|
|
464 int dif = helper.min_lineheight-(ascent+descent);
|
|
|
465 ascent += dif/2;
|
|
|
466 descent += dif-(dif/2);
|
|
|
467 }
|
|
|
468 if (is_ruby) ascent+=ruby_lineskip;
|
|
|
469 helper.AdjustPosition(xadd_start, xadd_end, cur_y+ascent+1, it_start, it);
|
|
|
470 cur_y += ascent + descent + line_skip;
|
|
|
471 lineheights.push_back(ascent+descent+line_skip);
|
|
|
472
|
|
|
473 /* 次の行へ */
|
|
|
474 if (it != it_end) {
|
|
|
475 it_start = it;
|
|
|
476 group_head = it_start;
|
|
|
477 /* １文字目がグループ化されていれば、グループの先頭文字にする */
|
|
|
478 xstart = it->x;
|
|
|
479 if (it->flag & TextGlyph::Group) {
|
|
|
480 TextGlyphStream::iterator jit;
|
|
|
481 for (jit = it; jit != it_end; jit++) {
|
|
|
482 if (xstart > jit->x) xstart = jit->x;
|
|
|
483 if (!(jit->flag & TextGlyph::Group)) break;
|
|
|
484 }
|
|
|
485 }
|
|
|
486 xend = it->x + width-tab_width;
|
|
|
487 }
|
|
|
488 }
|
|
|
489 return;
|
|
|
490 }
|
|
|
491
|
|
|
492 namespace XKFont {
|
|
|
493
|
|
|
494 HorizLayout::HorizLayout(const char* fontname, int size) {
|
|
|
495 font = new Font(fontname, size);
|
|
|
496 pimpl = new ::TextHorizLayout(font);
|
|
|
497 }
|
|
|
498
|
|
|
499 HorizLayout::~HorizLayout() {
|
|
|
500 delete pimpl;
|
|
|
501 delete font;
|
|
|
502 }
|
|
|
503
|
|
|
504 void HorizLayout::Layout(TextStream& stream, TextGlyphStream& glyph, vector<int>& lineheights, int width) {
|
|
|
505 pimpl->Layout(stream, glyph, lineheights, width);
|
|
|
506 };
|
|
|
507 TextGlyphStream HorizLayout::Layout(const char* str, int width, int r, int gc, int b) {
|
|
|
508 TextStream s;
|
|
|
509 s.SetColor(r,gc,b);
|
|
|
510 s.Add(str);
|
|
|
511 TextGlyphStream g;
|
|
|
512 vector<int> h;
|
|
|
513 Layout(s, g, h, width);
|
|
|
514 return g;
|
|
|
515 }
|
|
|
516
|
|
|
517 };
|
|
|
518
|
|
|
519 int TextGlyphStream::width(void) {
|
|
|
520 if (empty()) return 0;
|
|
|
521 iterator it;
|
|
|
522 int xmax = 0;
|
|
|
523 for (it=begin(); it!=end(); it++) {
|
|
|
524 int x = it->x + it->glyph->advance.x;
|
|
|
525 if (x > xmax) xmax = x;
|
|
|
526 }
|
|
|
527 return xmax + 1;
|
|
|
528 }
|
|
|
529
|
|
|
530 int TextGlyphStream::height(void) {
|
|
|
531 if (empty()) return 0;
|
|
|
532 iterator it;
|
|
|
533 int ymax = 0;
|
|
|
534 it = end();
|
|
|
535 while(1) {
|
|
|
536 it--;
|
|
|
537 int y = it->y + it->glyph->bitmap.rows - it->glyph->bitmap_top;
|
|
|
538 if (ymax < y) ymax = y;
|
|
|
539 if (it == begin()) break;
|
|
|
540 if (it->flag & TextGlyph::LineEnd) {
|
|
|
541 if (!(it->flag & TextGlyph::PhraseEnd)) break; // PhraseEnd は最後の文字
|
|
|
542 }
|
|
|
543 }
|
|
|
544 return ymax + 1;
|
|
|
545 }
|
|
|
546
|
