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annotate DPF-Prymula-audioplugins/dpf/dgl/src/Layout.cpp @ 6:542e305f23f4

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author prymula <prymula76@outlook.com>
date Wed, 31 Jan 2024 20:40:57 +0100
parents 84e66ea83026
children
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1 /*
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2 * DISTRHO Plugin Framework (DPF)
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3 * Copyright (C) 2012-2022 Filipe Coelho <falktx@falktx.com>
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4 *
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5 * Permission to use, copy, modify, and/or distribute this software for any purpose with
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6 * or without fee is hereby granted, provided that the above copyright notice and this
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7 * permission notice appear in all copies.
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8 *
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9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
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10 * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN
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11 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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12 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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13 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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15 */
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16
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17 #include "../Layout.hpp"
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18 #include "../SubWidget.hpp"
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19
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20 START_NAMESPACE_DGL
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21
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22 typedef std::list<SubWidgetWithSizeHint>::iterator SubWidgetWithSizeHintIterator;
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23 typedef std::list<HorizontalLayout*>::iterator HorizontalLayoutIterator;
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24 typedef std::list<VerticalLayout*>::iterator VerticalLayoutIterator;
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25
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26 // --------------------------------------------------------------------------------------------------------------------
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27
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28 template<> // horizontal
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29 uint Layout<true>::setAbsolutePos(int x, const int y, const uint padding)
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30 {
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31 uint maxHeight = 0;
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32
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33 for (SubWidgetWithSizeHintIterator it=widgets.begin(), end=widgets.end(); it != end; ++it)
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34 {
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35 SubWidgetWithSizeHint& s(*it);
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36 maxHeight = std::max(maxHeight, s.widget->getHeight());
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37 s.widget->setAbsolutePos(x, y);
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38 x += s.widget->getWidth();
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39 x += padding;
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40 }
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41
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42 return maxHeight;
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43 }
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44
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45 template<> // vertical
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46 uint Layout<false>::setAbsolutePos(const int x, int y, const uint padding)
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47 {
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48 uint maxWidth = 0;
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49
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50 for (SubWidgetWithSizeHintIterator it=widgets.begin(), end=widgets.end(); it != end; ++it)
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51 {
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52 SubWidgetWithSizeHint& s(*it);
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53 maxWidth = std::max(maxWidth, s.widget->getWidth());
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54 s.widget->setAbsolutePos(x, y);
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55 y += s.widget->getHeight();
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56 y += padding;
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57 }
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58
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59 return maxWidth;
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60 }
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61
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62 template<> // horizontal
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63 void Layout<true>::setSize(const uint width, const uint padding)
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64 {
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65 uint maxHeight = 0;
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66 uint nonFixedWidth = width;
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67 uint numDynamiclySizedWidgets = 0;
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68
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69 for (SubWidgetWithSizeHintIterator it=widgets.begin(), end=widgets.end(); it != end; ++it)
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70 {
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71 SubWidgetWithSizeHint& s(*it);
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72 maxHeight = std::max(maxHeight, s.widget->getHeight());
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73
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74 if (s.sizeHint == Fixed)
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75 nonFixedWidth -= s.widget->getWidth();
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76 else
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77 ++numDynamiclySizedWidgets;
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78 }
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79
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80 if (const size_t numWidgets = widgets.size())
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81 nonFixedWidth -= padding * (numWidgets - 1);
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82
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83 const uint widthPerWidget = numDynamiclySizedWidgets != 0 ? nonFixedWidth / numDynamiclySizedWidgets : 0;
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84
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85 for (SubWidgetWithSizeHintIterator it=widgets.begin(), end=widgets.end(); it != end; ++it)
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86 {
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87 SubWidgetWithSizeHint& s(*it);
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88 if (s.sizeHint != Fixed)
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89 s.widget->setSize(widthPerWidget, maxHeight);
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90 else
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91 s.widget->setHeight(maxHeight);
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92 }
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93 }
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94
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95 template<> // vertical
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96 void Layout<false>::setSize(const uint height, const uint padding)
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97 {
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98 uint biggestWidth = 0;
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99 uint nonFixedHeight = height;
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100 uint numDynamiclySizedWidgets = 0;
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101
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102 for (SubWidgetWithSizeHintIterator it=widgets.begin(), end=widgets.end(); it != end; ++it)
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103 {
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104 SubWidgetWithSizeHint& s(*it);
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105 biggestWidth = std::max(biggestWidth, s.widget->getWidth());
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106
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107 if (s.sizeHint == Fixed)
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108 nonFixedHeight -= s.widget->getHeight();
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109 else
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110 ++numDynamiclySizedWidgets;
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111 }
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112
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113 if (const size_t numWidgets = widgets.size())
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114 nonFixedHeight -= padding * (numWidgets - 1);
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115
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116 const uint heightPerWidget = numDynamiclySizedWidgets != 0 ? nonFixedHeight / numDynamiclySizedWidgets : 0;
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117
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118 for (SubWidgetWithSizeHintIterator it=widgets.begin(), end=widgets.end(); it != end; ++it)
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119 {
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120 SubWidgetWithSizeHint& s(*it);
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121 if (s.sizeHint != Fixed)
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122 s.widget->setSize(biggestWidth, heightPerWidget);
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123 else
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124 s.widget->setWidth(biggestWidth);
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125 }
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126 }
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127
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128 // --------------------------------------------------------------------------------------------------------------------
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129
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130 /* TODO
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131 void HorizontallyStackedVerticalLayout::adjustSize(const uint padding)
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132 {
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133 }
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134 */
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135
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136 void HorizontallyStackedVerticalLayout::setAbsolutePos(int x, const int y, const uint padding)
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137 {
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138 for (VerticalLayoutIterator it=items.begin(), end=items.end(); it != end; ++it)
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139 {
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140 VerticalLayout* l(*it);
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141 x += l->setAbsolutePos(x, y, padding);
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142 x += padding;
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143 }
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144 }
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145
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146 // --------------------------------------------------------------------------------------------------------------------
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147
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148 Size<uint> VerticallyStackedHorizontalLayout::adjustSize(const uint padding)
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149 {
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150 uint biggestWidth = 0;
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151 uint totalHeight = 0;
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152
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153 // iterate all widgets to find which one is the biggest (horizontally)
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154 for (HorizontalLayoutIterator it=items.begin(), end=items.end(); it != end; ++it)
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155 {
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156 HorizontalLayout* const l(*it);
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157 uint width = 0;
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158 uint height = 0;
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159
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160 for (SubWidgetWithSizeHintIterator it=l->widgets.begin(), end=l->widgets.end(); it != end; ++it)
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161 {
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162 SubWidgetWithSizeHint& s(*it);
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163
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164 if (width != 0)
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165 width += padding;
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166
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167 width += s.widget->getWidth();
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168 height = std::max(height, s.widget->getHeight());
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169 }
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170
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171 biggestWidth = std::max(biggestWidth, width);
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172
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173 if (totalHeight != 0)
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174 totalHeight += padding;
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175
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176 totalHeight += height;
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177 }
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178
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179 // now make all horizontal lines the same width
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180 for (HorizontalLayoutIterator it=items.begin(), end=items.end(); it != end; ++it)
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181 {
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182 HorizontalLayout* const l(*it);
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parents:
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183 l->setSize(biggestWidth, padding);
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184 }
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185
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186 return Size<uint>(biggestWidth, totalHeight);
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187 }
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188
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189 void VerticallyStackedHorizontalLayout::setAbsolutePos(const int x, int y, const uint padding)
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190 {
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191 for (HorizontalLayoutIterator it=items.begin(), end=items.end(); it != end; ++it)
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parents:
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192 {
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parents:
diff changeset
193 HorizontalLayout* l(*it);
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parents:
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194 y += l->setAbsolutePos(x, y, padding);
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195 y += padding;
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parents:
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196 }
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197 }
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198
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parents:
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199 // --------------------------------------------------------------------------------------------------------------------
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parents:
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200
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parents:
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201 END_NAMESPACE_DGL