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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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50
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134 delete face;
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0
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135 face = font->FaceLoad(it->impl.Size.scale);
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136 } else if (it->type == TextElem::escape) {
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137 x = gl.x;
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138 return it;
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139 }
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140 continue;
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141 }
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142 try {
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143 gl.glyph = face->GlyphLoad(it->impl.Glyph.code);
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144 if (max_x > 0 && gl.x + gl.glyph->advance.x > max_x) {
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145 x = gl.x;
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146 return it;
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147 }
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148 if ( Kinsoku(it->impl.Glyph.code) == KinsokuTail)
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149 gl.flag = TextGlyph::Flag(gl.flag | TextGlyph::Kinsoku);
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150 else
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151 gl.flag = TextGlyph::Flag(0);
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152 data->push_back(gl);
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153 gl.x += gl.glyph->advance.x;
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154 } catch(...) {}
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155 }
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156 x = gl.x;
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157 return it;
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158 }
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159
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160 TextGlyphStreamHelper::Iterator TextGlyphStreamHelper::AddRuby(int& x, TextGlyphStreamHelper::Iterator sbegin, TextGlyphStreamHelper::Iterator send) {
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161 Iterator it;
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162 it = sbegin;
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163 if (it == send) return it;
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164 if (it->type != TextElem::escape || it->impl.Escape.type != TextElem::ruby_start) return sbegin;
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165 it++;
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166 /* まず、本文描画 */
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167 int str_firstpos = data->size();
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168 int str_width = 0;
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169 it = Add(str_width, it, send);
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170 if (it == send || it->type != TextElem::escape || it->impl.Escape.type != TextElem::ruby_startruby) {
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171 // 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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172 cerr << "TextGlyphStream::AddRuby : invalid operation; fallback to the upeer level"<<endl;
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173 data->erase(data->begin()+str_firstpos, data->end());
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174 return sbegin+1;
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175 }
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176 it++;
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177 int str_lastpos = data->size()-1;
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178 TextGlyph& str_first = data->begin()[str_firstpos];
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179 TextGlyph& str_last = data->back();
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180 // 次に、フォントを取りかえてルビ描画
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181 int ruby_firstpos = data->size();
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182 XKFont::Face* save_font = face;
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183 if (ruby_face == 0) ruby_face = font->FaceLoad(ruby_scale);
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184 face = ruby_face;
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185 int ruby_width = 0;
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186 it = Add(ruby_width, it, send);
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187 if (it->type != TextElem::escape || it->impl.Escape.type != TextElem::ruby_end) {
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188 /* 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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189 cerr << "TextGlyphStream::AddRuby : invalid operation; fallback to the upeer level"<<endl;
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190 data->erase(data->begin()+str_firstpos, data->end());
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191 return sbegin+1;
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192 }
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193 it++;
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194 face = save_font;
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195 TextGlyph& ruby_first = (*data)[ruby_firstpos];
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196 TextGlyph& ruby_last = data->back();
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197
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198 /* ルビを移動すべき高さを求める */
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199 int dummy, str_ascent, ruby_descent;
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200 CalcHeight(str_ascent, dummy, data->begin()+str_firstpos, data->begin()+ruby_firstpos);
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201 CalcHeight(dummy, ruby_descent, data->begin()+ruby_firstpos, data->end());
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202 int ruby_height = str_ascent + ruby_descent + ruby_textskip;
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203
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204 /* 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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205 int leftmergin, rightmergin;
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206 leftmergin = str_first.glyph->advance.x/2 - (ruby_first.glyph->advance.x+1)/2;
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207 rightmergin = str_last.glyph->advance.x/2 - (ruby_last.glyph->advance.x+1)/2;
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208
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209 /* ルビ、本文の横方向の移動 */
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210 int ruby_xstart_add = 0, ruby_xend_add = 0, str_xstart_add=0, str_xend_add = 0;
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211 if (ruby_width+leftmergin+rightmergin <= str_width) { // ルビの方が小さい
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212 ruby_xstart_add = leftmergin;
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213 ruby_xend_add = str_width-rightmergin-ruby_width;
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214 } else if (ruby_width <= str_width) { // マージンを減らす必要あり
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215 leftmergin = (str_width-ruby_width)/2;
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216 ruby_xstart_add = leftmergin;
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217 ruby_xend_add = str_width-leftmergin-ruby_width;
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218 } else { // ルビの方が大きい
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219 int str_count = ruby_firstpos - str_firstpos;
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220 str_xstart_add = ruby_width/str_count/2 - str_first.glyph->advance.x/2;
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221 str_xend_add = (ruby_width-str_width) - (ruby_width/str_count/2-str_last.glyph->advance.x/2);
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222 str_width = ruby_width;
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223 }
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224 AdjustPosition(str_xstart_add+x, str_xend_add+x, 0, data->begin()+str_firstpos, data->begin()+ruby_firstpos);
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225 AdjustPosition(ruby_xstart_add+x, ruby_xend_add+x, -ruby_height, data->begin()+ruby_firstpos, data->end());
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226
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227 /* 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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228 vector<TextGlyph> save;
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229 save.assign(data->begin()+str_firstpos, data->end());
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230 iterator it_str = save.begin();
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231 iterator it_ruby = save.begin()+(ruby_firstpos-str_firstpos);
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232 iterator dit = data->begin()+str_firstpos;
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233 int str_count = it_ruby-it_str;
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234 int ruby_count = save.end()-it_ruby;
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235 int i,j = 0;
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236 for (i=0; i<str_count; i++) {
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237 iterator charstart = dit;
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238 int jend = (i+1)*ruby_count/str_count;
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239 for (; j<jend; j++) {
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240 *dit++ = *it_ruby++;
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241 }
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242 *dit++ = *it_str++;
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243 SetGroup(charstart, dit);
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244 }
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245 x += str_width;
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246 return it;
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247 }
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248
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249
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250 void TextGlyphStreamHelper::SetGroup(TextGlyphStreamHelper::iterator begin, TextGlyphStreamHelper::iterator end) {
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251 iterator it;
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252 for (it = begin; it+1 != end; it++)
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253 it->flag = TextGlyph::Flag(it->flag |TextGlyph::Group);
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254 it->flag = TextGlyph::Flag(it->flag & ~TextGlyph::Group);
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255 return;
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256 }
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257
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258 void TextGlyphStreamHelper::AdjustPosition(int xstart_add, int xend_add, int y_add, TextGlyphStreamHelper::iterator begin, TextGlyphStreamHelper::iterator end) {
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259 iterator it;
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260 /* 文字数を数える */
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261 int total_count = 0;
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262 for (it = begin; it != end; it++) {
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263 if (it->flag & TextGlyph::Group) continue;
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264 total_count++;
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265 }
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266 /* 文字間のギャップを変更 */
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267 int incr = 0;
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268 if (total_count != 1) incr = (xend_add - xstart_add) * 256 / (total_count-1);
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269 int cur = xstart_add * 256;
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270 for (it = begin; it != end; it++) {
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271 it->x += cur / 256;
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272 it->y += y_add;
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273 if (it->flag & TextGlyph::Group) continue;
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274 cur += incr;
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275 }
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276 return;
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277 }
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278 void TextGlyphStreamHelper::CalcHeight(int& ascent_r, int& descent_r, TextGlyphStreamHelper::iterator begin, TextGlyphStreamHelper::iterator end) {
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279 iterator it;
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280 /* 最大の descent, ascent を計算 */
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281 int ascent = 0;
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282 int descent = 0;
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283 for (it = begin; it != end; it++) {
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284
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285 int y_top = it->y - it->glyph->bitmap_top;
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286 int y_bottom = it->y + it->glyph->bitmap.rows - it->glyph->bitmap_top;
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287
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288 if (descent < y_bottom) descent = y_bottom;
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289 if (ascent < -y_top) ascent = -y_top;
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290 }
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291 ascent_r = ascent;
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292 descent_r = descent;
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293 return;
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294 }
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295
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296 int TextGlyphStreamHelper::CharWidth(int code) {
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297 try {
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298 XKFont::Glyph* g = face->GlyphLoad(code);
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299 return g->advance.x;
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300 } catch(...) {
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301 return 0;
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302 }
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303 }
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304
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305 class TextHorizLayout {
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306 typedef TextStream::Iterator Iterator;
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307
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308 Iterator pos;
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309 Iterator end;
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310 TextGlyphStream* data;
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311 TextGlyphStreamHelper helper;
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312 int tab_width;
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313 int cur_y;
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314
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315 void SetName(void);
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316 void SetLineHead(void);
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317 void MakeLine(int line_first, int width, vector<int>& lineheights);
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318 public:
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319 TextHorizLayout(XKFont::Font* font);
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320 void Layout(TextStream& stream, TextGlyphStream& glyph, vector<int>& lineheights, int width);
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321 };
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322
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323 TextHorizLayout::TextHorizLayout(XKFont::Font* font) :
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324 helper(font), tab_width(0), cur_y(0) {
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325 }
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326
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327 void TextHorizLayout::Layout(TextStream& stream, TextGlyphStream& glyph, vector<int>& lineheights, int width) {
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328 pos = stream.container.begin();
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329 end = stream.container.end();
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330 data = &glyph;
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331
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332 helper.Init(data);
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333 tab_width = 0;
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334 cur_y = 0;
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335 int prev_y = 0;
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336 int line_start = glyph.size();
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337 while(pos != end) {
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338 /*
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339 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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340 if (pos->type == TextElem::escape) { cout<<"escape "<<pos->impl.Escape.type<<endl;}
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341 */
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342 SetName();
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343 SetLineHead();
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344 MakeLine(line_start, width, lineheights);
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345 if (line_start != glyph.size()) {
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346 data->back().flag = TextGlyph::Flag(data->back().flag | TextGlyph::PhraseEnd | TextGlyph::LineEnd);
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347 }
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348 prev_y = cur_y;
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349 if (pos != end && pos->type == TextElem::escape && pos->impl.Escape.type == TextElem::ret) pos++;
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350 line_start = glyph.size();
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351 }
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352 return;
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353 }
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354
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355 void TextHorizLayout::SetName(void) {
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356 Iterator it;
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357
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358 tab_width = 0;
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359 /* 行頭が名前なら、処理開始 */
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360 for (; pos != end; pos++) {
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361 if (pos->type == TextElem::escape || pos->type == TextElem::glyph) break;
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362 int x = 0;
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363 helper.Add(x, pos, pos+1);
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364 }
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365
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366 if (pos->type != TextElem::escape || pos->impl.Escape.type != TextElem::name_start) return;
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367
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368 /* 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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369 pos++;
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370 for (it = pos; it != end; it++) {
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371 if (it->type == TextElem::escape && it->impl.Escape.type == TextElem::name_end) break;
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372 }
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373 if (it == end) return;
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374 int line_firstpos = data->size();
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375 pos = helper.Add(tab_width, pos, it);
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376 pos++;
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377 helper.SetGroup(data->begin() + line_firstpos, data->end());
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378
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379 // 行頭の「分を開ける
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380 try {
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381 tab_width += helper.CharWidth(0xa1d6); /* 「 */
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382 } catch(...) {}
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383
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384 return;
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385 };
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386
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387 void TextHorizLayout::SetLineHead(void) {
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388
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389 /* 行頭は 「などか？ */
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390
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391 for (; pos != end; pos++) {
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392 if (pos->type == TextElem::escape || pos->type == TextElem::glyph) break;
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393 int x = 0;
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394 helper.Add(x, pos, pos+1);
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395 }
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|
396 if (pos->type != TextElem::glyph || Kinsoku(pos->impl.Glyph.code) != KinsokuHead) return;
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397
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|
|
398 /* 「なので、処理する */
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|
|
399 if (tab_width != 0) tab_width -= helper.CharWidth(pos->impl.Glyph.code);
|
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|
400 int line_firstpos = data->size();
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401 pos = helper.Add(tab_width, pos, pos+1);
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|
402 return;
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|
|
403 }
|
|
|
404
|
|
|
405 void TextHorizLayout::MakeLine(int line_start, int width, vector<int>& lineheights) {
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406
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|
|
407 int x = tab_width;
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|
408 /* まず、全文字描画する */
|
|
|
409 while(pos != end) {
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|
410 pos = helper.Add(x, pos, end);
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|
|
411 if (pos->type == TextElem::escape && pos->impl.Escape.type == TextElem::ruby_start) {
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|
|
412 pos = helper.AddRuby(x, pos, end);
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|
413 }
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|
|
414 if (pos != end && pos->type == TextElem::escape) {
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|
|
415 if (pos->impl.Escape.type == TextElem::ret) break;
|
|
|
416 if (pos->impl.Escape.type != TextElem::ruby_start) pos++;
|
|
|
417 }
|
|
|
418 }
|
|
|
419 /* 行に分割していく */
|
|
|
420 TextGlyphStream::iterator it_start = data->begin() + line_start;
|
|
|
421 TextGlyphStream::iterator it_end = data->end();
|
|
|
422 TextGlyphStream::iterator it = it_start;
|
|
|
423
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|
|
424 TextGlyphStream::iterator group_head = it_start;
|
|
|
425 int xstart = tab_width;
|
|
|
426 int xend = width;
|
|
|
427 while(it != it_end) {
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|
|
428 // この行の終わりを決める
|
|
|
429 bool is_ruby = false;
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|
|
430 TextGlyphStream::iterator it_line_start = it;
|
|
|
431 for (; it != it_end; it++) {
|
|
|
432 if (it->x + it->glyph->advance.x > xend) break;
|
|
|
433 if (it->flag & TextGlyph::Group) is_ruby = true;
|
|
|
434 if (!(it->flag & TextGlyph::Group)) group_head = it;
|
|
|
435 }
|
|
|
436 // 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
|
|
|
437 int xadd_start = -xstart + tab_width;
|
|
|
438 int xadd_end = xadd_start;
|
|
|
439 // it == 次行の先頭なので、今行の末尾へ戻す
|
|
|
440 // ただし、 最低一文字の表示は保証
|
|
|
441 if (it != it_line_start && it != it_line_start+1 && it != it_end) it--;
|
|
|
442 if (it != it_end) {
|
|
|
443 // 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
|
|
|
444 if (it->flag & TextGlyph::Group) it = group_head;
|
|
|
445 // 次が行頭禁則文字ならこの行に入れる
|
|
|
446 if ( (it+1) != it_end && (it+1)->flag & TextGlyph::Kinsoku) it++;
|
|
|
447 // 移動する大きさを決める
|
|
|
448 // 行端ぞろえ、行末文字なら半文字分だけ突き出る
|
|
|
449 int glyph_xend = it->x + it->glyph->advance.x;
|
|
|
450 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
|
|
|
451 if (glyph_xend < (it-1)->x + (it-1)->glyph->advance.x)
|
|
|
452 glyph_xend = (it-1)->x + (it-1)->glyph->advance.x;
|
|
|
453 }
|
|
|
454 xadd_end += xend - glyph_xend;
|
|
|
455 if (it->flag & TextGlyph::Kinsoku)
|
|
|
456 xadd_end += it->glyph->advance.x / 2;
|
|
|
457 }
|
|
|
458 if (it != it_end) {
|
|
|
459 it->flag = TextGlyph::Flag(it->flag | TextGlyph::LineEnd);
|
|
|
460 it++; // it == 次行の先頭へ
|
|
|
461 }
|
|
|
462 int ascent, descent;
|
|
|
463 helper.CalcHeight(ascent, descent, it_start, it);
|
|
|
464 if (ascent+descent < helper.min_lineheight) {
|
|
|
465 int dif = helper.min_lineheight-(ascent+descent);
|
|
|
466 ascent += dif/2;
|
|
|
467 descent += dif-(dif/2);
|
|
|
468 }
|
|
|
469 if (is_ruby) ascent+=ruby_lineskip;
|
|
|
470 helper.AdjustPosition(xadd_start, xadd_end, cur_y+ascent+1, it_start, it);
|
|
|
471 cur_y += ascent + descent + line_skip;
|
|
|
472 lineheights.push_back(ascent+descent+line_skip);
|
|
|
473
|
|
|
474 /* 次の行へ */
|
|
|
475 if (it != it_end) {
|
|
|
476 it_start = it;
|
|
|
477 group_head = it_start;
|
|
|
478 /* 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 */
|
|
|
479 xstart = it->x;
|
|
|
480 if (it->flag & TextGlyph::Group) {
|
|
|
481 TextGlyphStream::iterator jit;
|
|
|
482 for (jit = it; jit != it_end; jit++) {
|
|
|
483 if (xstart > jit->x) xstart = jit->x;
|
|
|
484 if (!(jit->flag & TextGlyph::Group)) break;
|
|
|
485 }
|
|
|
486 }
|
|
|
487 xend = it->x + width-tab_width;
|
|
|
488 }
|
|
|
489 }
|
|
|
490 return;
|
|
|
491 }
|
|
|
492
|
|
|
493 namespace XKFont {
|
|
|
494
|
|
|
495 HorizLayout::HorizLayout(const char* fontname, int size) {
|
|
|
496 font = new Font(fontname, size);
|
|
|
497 pimpl = new ::TextHorizLayout(font);
|
|
|
498 }
|
|
|
499
|
|
|
500 HorizLayout::~HorizLayout() {
|
|
|
501 delete pimpl;
|
|
|
502 delete font;
|
|
|
503 }
|
|
|
504
|
|
|
505 void HorizLayout::Layout(TextStream& stream, TextGlyphStream& glyph, vector<int>& lineheights, int width) {
|
|
|
506 pimpl->Layout(stream, glyph, lineheights, width);
|
|
|
507 };
|
|
|
508 TextGlyphStream HorizLayout::Layout(const char* str, int width, int r, int gc, int b) {
|
|
|
509 TextStream s;
|
|
|
510 s.SetColor(r,gc,b);
|
|
|
511 s.Add(str);
|
|
|
512 TextGlyphStream g;
|
|
|
513 vector<int> h;
|
|
|
514 Layout(s, g, h, width);
|
|
|
515 return g;
|
|
|
516 }
|
|
|
517
|
|
|
518 };
|
|
|
519
|
|
|
520 int TextGlyphStream::width(void) {
|
|
|
521 if (empty()) return 0;
|
|
|
522 iterator it;
|
|
|
523 int xmax = 0;
|
|
|
524 for (it=begin(); it!=end(); it++) {
|
|
|
525 int x = it->x + it->glyph->advance.x;
|
|
|
526 if (x > xmax) xmax = x;
|
|
|
527 }
|
|
|
528 return xmax + 1;
|
|
|
529 }
|
|
|
530
|
|
|
531 int TextGlyphStream::height(void) {
|
|
|
532 if (empty()) return 0;
|
|
|
533 iterator it;
|
|
|
534 int ymax = 0;
|
|
|
535 it = end();
|
|
|
536 while(1) {
|
|
|
537 it--;
|
|
|
538 int y = it->y + it->glyph->bitmap.rows - it->glyph->bitmap_top;
|
|
|
539 if (ymax < y) ymax = y;
|
|
|
540 if (it == begin()) break;
|
|
|
541 if (it->flag & TextGlyph::LineEnd) {
|
|
|
542 if (!(it->flag & TextGlyph::PhraseEnd)) break; // PhraseEnd は最後の文字
|
|
|
543 }
|
|
|
544 }
|
|
|
545 return ymax + 1;
|
|
|
546 }
|
|
|
547
|
