Mercurial > hg > orthanc-stone

annotate Framework/Deprecated/Widgets/PanZoomMouseTracker.cpp @ 879:12b591d5d63c am-dev

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some Qt integration (wip)
author Alain Mazy <alain@mazy.be>
date Fri, 05 Jul 2019 14:52:43 +0200
parents c35e98d22764
children 2d8ab34c8c91
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rev   line source
457
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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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5 * Copyright (C) 2017-2019 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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20
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21
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22 #include "PanZoomMouseTracker.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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26 #include <math.h>
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27
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28 namespace Deprecated
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29 {
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30 Touch GetCenter(const std::vector<Touch>& touches)
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31 {
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32 return Touch((touches[0].x + touches[1].x) / 2.0f, (touches[0].y + touches[1].y) / 2.0f);
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33 }
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34
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35 double GetDistance(const std::vector<Touch>& touches)
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36 {
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37 float dx = touches[0].x - touches[1].x;
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38 float dy = touches[0].y - touches[1].y;
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39 return sqrt((double)(dx * dx) + (double)(dy * dy));
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40 }
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41
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42
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43 PanZoomMouseTracker::PanZoomMouseTracker(WorldSceneWidget& that,
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44 const std::vector<Touch>& startTouches)
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45 : that_(that),
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46 originalZoom_(that.GetView().GetZoom())
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47 {
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48 that.GetView().GetPan(originalPanX_, originalPanY_);
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49 that.GetView().MapPixelCenterToScene(originalSceneTouches_, startTouches);
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50
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51 originalDisplayCenter_ = GetCenter(startTouches);
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52 originalSceneCenter_ = GetCenter(originalSceneTouches_);
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53 originalDisplayDistanceBetweenTouches_ = GetDistance(startTouches);
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54
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55 // printf("original Pan %f %f\n", originalPanX_, originalPanY_);
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56 // printf("original Zoom %f \n", originalZoom_);
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57 // printf("original distance %f \n", (float)originalDisplayDistanceBetweenTouches_);
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58 // printf("original display touches 0 %f %f\n", startTouches[0].x, startTouches[0].y);
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59 // printf("original display touches 1 %f %f\n", startTouches[1].x, startTouches[1].y);
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60 // printf("original Scene center %f %f\n", originalSceneCenter_.x, originalSceneCenter_.y);
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61
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62 unsigned int height = that.GetView().GetDisplayHeight();
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63
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64 if (height <= 3)
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65 {
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66 idle_ = true;
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67 LOG(WARNING) << "image is too small to zoom (current height = " << height << ")";
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68 }
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69 else
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70 {
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71 idle_ = false;
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72 normalization_ = 1.0 / static_cast<double>(height - 1);
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73 }
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74
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75 }
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76
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77
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78 void PanZoomMouseTracker::Render(OrthancStone::CairoContext& context,
457
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79 double zoom)
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80 {
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81 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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82 }
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83
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84
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85 void PanZoomMouseTracker::MouseMove(int displayX,
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86 int displayY,
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87 double x,
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88 double y,
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89 const std::vector<Touch>& displayTouches,
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90 const std::vector<Touch>& sceneTouches)
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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91 {
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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92 ViewportGeometry view = that_.GetView();
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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93
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94 // printf("Display touches 0 %f %f\n", displayTouches[0].x, displayTouches[0].y);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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95 // printf("Display touches 1 %f %f\n", displayTouches[1].x, displayTouches[1].y);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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96 // printf("Scene touches 0 %f %f\n", sceneTouches[0].x, sceneTouches[0].y);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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97 // printf("Scene touches 1 %f %f\n", sceneTouches[1].x, sceneTouches[1].y);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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98
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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99 // printf("zoom = %f\n", view.GetZoom());
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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100 Touch currentSceneCenter = GetCenter(sceneTouches);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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101 double panX = originalPanX_ + (currentSceneCenter.x - originalSceneCenter_.x) * view.GetZoom();
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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102 double panY = originalPanY_ + (currentSceneCenter.y - originalSceneCenter_.y) * view.GetZoom();
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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103
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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104 view.SetPan(panX, panY);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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105
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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106 static const double MIN_ZOOM = -4;
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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107 static const double MAX_ZOOM = 4;
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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108
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109 if (!idle_)
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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110 {
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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111 double currentDistanceBetweenTouches = GetDistance(displayTouches);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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112
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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113 double dy = static_cast<double>(currentDistanceBetweenTouches - originalDisplayDistanceBetweenTouches_) * normalization_; // In the range [-1,1]
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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114 double z;
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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115
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116 // Linear interpolation from [-1, 1] to [MIN_ZOOM, MAX_ZOOM]
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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117 if (dy < -1.0)
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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118 {
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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119 z = MIN_ZOOM;
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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120 }
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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121 else if (dy > 1.0)
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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122 {
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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123 z = MAX_ZOOM;
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124 }
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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125 else
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126 {
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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127 z = MIN_ZOOM + (MAX_ZOOM - MIN_ZOOM) * (dy + 1.0) / 2.0;
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128 }
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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129
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130 z = pow(2.0, z);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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131
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132 view.SetZoom(z * originalZoom_);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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133 }
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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134
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135 that_.SetView(view);
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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136 }
3b4df9925db6 added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
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137 }