annotate Framework/Widgets/LayoutWidget.cpp @ 247:3d523c9a8f0d am

trying to use boost::signals2 even more.
author am@osimis.io
date Mon, 02 Jul 2018 12:32:02 +0200
parents 7d3b2c4f9ba1
children f21ba2468570
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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4cff7b1ed31d upgrade to year 2018
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #include "LayoutWidget.h"
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23
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24 #include <Core/Logging.h>
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25 #include <Core/OrthancException.h>
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27 #include <boost/math/special_functions/round.hpp>
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29 namespace OrthancStone
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30 {
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31 class LayoutWidget::LayoutMouseTracker : public IMouseTracker
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32 {
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33 private:
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34 std::auto_ptr<IMouseTracker> tracker_;
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35 int left_;
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36 int top_;
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37 unsigned int width_;
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38 unsigned int height_;
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40 public:
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41 LayoutMouseTracker(IMouseTracker* tracker,
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42 int left,
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43 int top,
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44 unsigned int width,
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45 unsigned int height) :
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46 tracker_(tracker),
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47 left_(left),
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48 top_(top),
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49 width_(width),
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50 height_(height)
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51 {
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52 if (tracker == NULL)
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53 {
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54 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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55 }
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56 }
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57
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58 virtual void Render(Orthanc::ImageAccessor& surface)
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59 {
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60 Orthanc::ImageAccessor accessor = surface.GetRegion(left_, top_, width_, height_);
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61 tracker_->Render(accessor);
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62 }
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63
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64 virtual void MouseUp()
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65 {
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66 tracker_->MouseUp();
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67 }
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68
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69 virtual void MouseMove(int x,
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70 int y)
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71 {
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72 tracker_->MouseMove(x - left_, y - top_);
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73 }
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74 };
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77 class LayoutWidget::ChildWidget : public boost::noncopyable
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78 {
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79 private:
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80 std::auto_ptr<IWidget> widget_;
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81 int left_;
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82 int top_;
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83 unsigned int width_;
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84 unsigned int height_;
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85
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86 public:
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87 ChildWidget(IWidget* widget) :
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88 widget_(widget)
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89 {
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90 assert(widget != NULL);
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91 SetEmpty();
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92 }
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93
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94 void UpdateContent()
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95 {
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96 if (widget_->HasUpdateContent())
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97 {
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98 widget_->UpdateContent();
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99 }
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100 }
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101
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102 IWidget& GetWidget() const
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103 {
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104 return *widget_;
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105 }
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106
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107 void SetRectangle(unsigned int left,
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108 unsigned int top,
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109 unsigned int width,
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110 unsigned int height)
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111 {
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112 left_ = left;
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113 top_ = top;
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114 width_ = width;
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115 height_ = height;
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116
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117 widget_->SetSize(width, height);
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118 }
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119
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120 void SetEmpty()
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121 {
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122 SetRectangle(0, 0, 0, 0);
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123 }
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124
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125 bool Contains(int x,
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126 int y) const
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127 {
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128 return (x >= left_ &&
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129 y >= top_ &&
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130 x < left_ + static_cast<int>(width_) &&
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131 y < top_ + static_cast<int>(height_));
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132 }
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133
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134 bool Render(Orthanc::ImageAccessor& target)
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135 {
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136 if (width_ == 0 ||
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137 height_ == 0)
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138 {
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139 return true;
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140 }
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141 else
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142 {
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143 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_);
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144 return widget_->Render(accessor);
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145 }
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146 }
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147
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148 IMouseTracker* CreateMouseTracker(MouseButton button,
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149 int x,
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150 int y,
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151 KeyboardModifiers modifiers)
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152 {
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153 if (Contains(x, y))
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154 {
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155 IMouseTracker* tracker = widget_->CreateMouseTracker(button,
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156 x - left_,
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157 y - top_,
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158 modifiers);
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159 if (tracker)
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160 {
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161 return new LayoutMouseTracker(tracker, left_, top_, width_, height_);
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162 }
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163 }
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164
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165 return NULL;
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166 }
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167
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168 void RenderMouseOver(Orthanc::ImageAccessor& target,
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169 int x,
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170 int y)
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171 {
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172 if (Contains(x, y))
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173 {
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174 Orthanc::ImageAccessor accessor = target.GetRegion(left_, top_, width_, height_);
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175
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176 widget_->RenderMouseOver(accessor, x - left_, y - top_);
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177 }
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178 }
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179
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180 void MouseWheel(MouseWheelDirection direction,
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181 int x,
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182 int y,
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183 KeyboardModifiers modifiers)
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184 {
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185 if (Contains(x, y))
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186 {
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187 widget_->MouseWheel(direction, x - left_, y - top_, modifiers);
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188 }
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189 }
54
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190
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191 bool HasRenderMouseOver()
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192 {
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193 return widget_->HasRenderMouseOver();
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194 }
0
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195 };
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196
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197
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198 void LayoutWidget::ComputeChildrenExtents()
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199 {
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200 if (children_.size() == 0)
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201 {
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202 return;
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203 }
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204
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205 float internal = static_cast<float>(paddingInternal_);
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206
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207 if (width_ <= paddingLeft_ + paddingRight_ ||
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208 height_ <= paddingTop_ + paddingBottom_)
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209 {
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210 for (size_t i = 0; i < children_.size(); i++)
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211 {
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212 children_[i]->SetEmpty();
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213 }
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214 }
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215 else if (isHorizontal_)
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216 {
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217 unsigned int padding = paddingLeft_ + paddingRight_ + (children_.size() - 1) * paddingInternal_;
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218 float childWidth = ((static_cast<float>(width_) - static_cast<float>(padding)) /
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219 static_cast<float>(children_.size()));
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220
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221 for (size_t i = 0; i < children_.size(); i++)
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222 {
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223 float left = static_cast<float>(paddingLeft_) + static_cast<float>(i) * (childWidth + internal);
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224 float right = left + childWidth;
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225
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226 if (left >= right)
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227 {
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228 children_[i]->SetEmpty();
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229 }
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230 else
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231 {
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232 children_[i]->SetRectangle(static_cast<unsigned int>(left),
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233 paddingTop_,
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234 boost::math::iround(right - left),
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235 height_ - paddingTop_ - paddingBottom_);
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236 }
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237 }
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238 }
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239 else
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240 {
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241 unsigned int padding = paddingTop_ + paddingBottom_ + (children_.size() - 1) * paddingInternal_;
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242 float childHeight = ((static_cast<float>(height_) - static_cast<float>(padding)) /
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243 static_cast<float>(children_.size()));
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244
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245 for (size_t i = 0; i < children_.size(); i++)
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246 {
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247 float top = static_cast<float>(paddingTop_) + static_cast<float>(i) * (childHeight + internal);
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248 float bottom = top + childHeight;
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249
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250 if (top >= bottom)
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251 {
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252 children_[i]->SetEmpty();
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253 }
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254 else
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255 {
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256 children_[i]->SetRectangle(paddingTop_,
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257 static_cast<unsigned int>(top),
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258 width_ - paddingLeft_ - paddingRight_,
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259 boost::math::iround(bottom - top));
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260 }
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261 }
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262 }
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263
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264 NotifyChange(*this);
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265 }
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266
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267
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268 LayoutWidget::LayoutWidget() :
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269 isHorizontal_(true),
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270 width_(0),
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271 height_(0),
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272 paddingLeft_(0),
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273 paddingTop_(0),
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274 paddingRight_(0),
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275 paddingBottom_(0),
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276 paddingInternal_(0)
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277 {
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278 }
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279
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280
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281 LayoutWidget::~LayoutWidget()
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282 {
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283 for (size_t i = 0; i < children_.size(); i++)
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284 {
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285 delete children_[i];
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286 }
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287 }
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288
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289
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290 void LayoutWidget::SetDefaultView()
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291 {
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292 for (size_t i = 0; i < children_.size(); i++)
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293 {
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294 children_[i]->GetWidget().SetDefaultView();
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295 }
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296 }
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297
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298
0
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299 void LayoutWidget::NotifyChange(const IWidget& widget)
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300 {
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301 // One of the children has changed
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302 WidgetBase::NotifyChange();
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303 }
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304
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305
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306 void LayoutWidget::SetHorizontal()
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307 {
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308 isHorizontal_ = true;
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309 ComputeChildrenExtents();
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310 }
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311
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312
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313 void LayoutWidget::SetVertical()
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314 {
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315 isHorizontal_ = false;
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316 ComputeChildrenExtents();
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317 }
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318
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319
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320 void LayoutWidget::SetPadding(unsigned int left,
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321 unsigned int top,
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322 unsigned int right,
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323 unsigned int bottom,
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324 unsigned int spacing)
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325 {
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326 paddingLeft_ = left;
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327 paddingTop_ = top;
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328 paddingRight_ = right;
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329 paddingBottom_ = bottom;
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330 paddingInternal_ = spacing;
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331 }
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parents:
diff changeset
332
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333
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334 void LayoutWidget::SetPadding(unsigned int padding)
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335 {
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336 paddingLeft_ = padding;
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337 paddingTop_ = padding;
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338 paddingRight_ = padding;
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339 paddingBottom_ = padding;
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340 paddingInternal_ = padding;
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341 }
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diff changeset
342
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343
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344 IWidget& LayoutWidget::AddWidget(IWidget* widget) // Takes ownership
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345 {
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346 if (widget == NULL)
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diff changeset
347 {
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348 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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349 }
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diff changeset
350
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parents:
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351 if (GetStatusBar() != NULL)
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352 {
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353 widget->SetStatusBar(*GetStatusBar());
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354 }
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diff changeset
355
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356 children_.push_back(new ChildWidget(widget));
61
ca644004d2ee MAJOR - removal of Start/Stop and observers in IWidget
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diff changeset
357 widget->SetParent(*this);
0
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358
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359 ComputeChildrenExtents();
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360
53
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parents: 48
diff changeset
361 if (widget->HasUpdateContent())
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parents: 48
diff changeset
362 {
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363 hasUpdateContent_ = true;
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diff changeset
364 }
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diff changeset
365
0
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366 return *widget;
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parents:
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367 }
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parents:
diff changeset
368
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diff changeset
369
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diff changeset
370 void LayoutWidget::SetStatusBar(IStatusBar& statusBar)
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371 {
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372 WidgetBase::SetStatusBar(statusBar);
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373
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374 for (size_t i = 0; i < children_.size(); i++)
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375 {
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diff changeset
376 children_[i]->GetWidget().SetStatusBar(statusBar);
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diff changeset
377 }
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parents:
diff changeset
378 }
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parents:
diff changeset
379
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parents:
diff changeset
380
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diff changeset
381 void LayoutWidget::SetSize(unsigned int width,
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diff changeset
382 unsigned int height)
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diff changeset
383 {
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diff changeset
384 width_ = width;
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385 height_ = height;
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parents:
diff changeset
386 ComputeChildrenExtents();
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parents:
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387 }
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parents:
diff changeset
388
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parents:
diff changeset
389
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Sebastien Jodogne <s.jodogne@gmail.com>
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390 bool LayoutWidget::Render(Orthanc::ImageAccessor& surface)
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391 {
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diff changeset
392 if (!WidgetBase::Render(surface))
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parents:
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393 {
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394 return false;
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
395 }
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parents:
diff changeset
396
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397 for (size_t i = 0; i < children_.size(); i++)
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parents:
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398 {
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parents:
diff changeset
399 if (!children_[i]->Render(surface))
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
400 {
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parents:
diff changeset
401 return false;
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
402 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
403 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
404
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
405 return true;
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
406 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
407
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
408
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Sebastien Jodogne <s.jodogne@gmail.com>
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409 IMouseTracker* LayoutWidget::CreateMouseTracker(MouseButton button,
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Sebastien Jodogne <s.jodogne@gmail.com>
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410 int x,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
411 int y,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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412 KeyboardModifiers modifiers)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
413 {
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
414 for (size_t i = 0; i < children_.size(); i++)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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415 {
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416 IMouseTracker* tracker = children_[i]->CreateMouseTracker(button, x, y, modifiers);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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417 if (tracker != NULL)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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418 {
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parents:
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419 return tracker;
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
420 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
421 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
422
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
423 return NULL;
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
424 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
425
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
426
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
427 void LayoutWidget::RenderMouseOver(Orthanc::ImageAccessor& target,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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428 int x,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
429 int y)
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
430 {
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
431 for (size_t i = 0; i < children_.size(); i++)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
432 {
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parents:
diff changeset
433 children_[i]->RenderMouseOver(target, x, y);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
434 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
435 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
436
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
437
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
438 void LayoutWidget::MouseWheel(MouseWheelDirection direction,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
439 int x,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
440 int y,
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
441 KeyboardModifiers modifiers)
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
442 {
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
443 for (size_t i = 0; i < children_.size(); i++)
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
444 {
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
445 children_[i]->MouseWheel(direction, x, y, modifiers);
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
446 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
447 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
448
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
449
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
450 void LayoutWidget::KeyPressed(char key,
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
451 KeyboardModifiers modifiers)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
452 {
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
453 for (size_t i = 0; i < children_.size(); i++)
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
454 {
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
455 children_[i]->GetWidget().KeyPressed(key, modifiers);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
456 }
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
457 }
53
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
458
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
459
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
460 void LayoutWidget::UpdateContent()
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
461 {
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
462 if (hasUpdateContent_)
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
463 {
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
464 for (size_t i = 0; i < children_.size(); i++)
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
465 {
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
466 children_[i]->UpdateContent();
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
467 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
468 }
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
469 else
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
470 {
c2dc924f1a63 removing threading out of the framework
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
471 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
472 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 48
diff changeset
473 }
54
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
474
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
475
55
f0f354a97581 simplification
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 54
diff changeset
476 bool LayoutWidget::HasRenderMouseOver()
54
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
477 {
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
478 for (size_t i = 0; i < children_.size(); i++)
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
479 {
55
f0f354a97581 simplification
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parents: 54
diff changeset
480 if (children_[i]->HasRenderMouseOver())
54
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
481 {
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
482 return true;
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
483 }
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
484 }
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
485
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
486 return false;
01aa453d4d5b IWidget::HasRenderMouseOver
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 53
diff changeset
487 }
0
351ab0da0150 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
488 }