src/tools/drawtool.cpp

Tue, 27 Jul 2021 09:56:06 +0300

author
Teemu Piippo <teemu@hecknology.net>
date
Tue, 27 Jul 2021 09:56:06 +0300
changeset 114
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parent 111
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child 121
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permissions
-rw-r--r--

added build-time test for line length

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1 #include <QMessageBox>
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2 #include <document.h>
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3 #include "linetypes/edge.h"
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4 #include "linetypes/triangle.h"
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5 #include "linetypes/quadrilateral.h"
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6 #include "drawtool.h"
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7 #include "modeleditcontext.h"
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8
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9 static const QBrush pointBrush = {Qt::white};
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10 static const QPen polygonPen = {QBrush{Qt::black}, 2.0, Qt::DashLine};
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11 static const QPen pointPen = {QBrush{Qt::black}, 2.0};
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12 static const QBrush polygonBrush = {QColor{64, 255, 128, 192}};
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13
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14 DrawTool::DrawTool(QObject* parent) :
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15 BaseTool{parent} {}
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16
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17 QString DrawTool::name() const
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18 {
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19 static const QString result = tr("Draw");
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20 return result;
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21 }
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22
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23 QString DrawTool::toolTip() const
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24 {
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25 static const QString result = tr("Draw new elements into the model.");
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26 return result;
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27 }
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28
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29 bool DrawTool::mouseClick(Document* document, Canvas* canvas)
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30 {
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31 const auto& worldPosition = canvas->getWorldPosition();
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32 if (worldPosition.has_value())
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33 {
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34 const glm::vec3& pos = worldPosition.value();
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35 const auto isCloseToPos = [&](const glm::vec3& x){return geom::isclose(x, pos);};
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36 if (any(this->polygon, isCloseToPos))
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37 {
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38 this->closeShape(document);
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39 }
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40 else
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41 {
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42 this->polygon.push_back(pos);
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43 if (this->polygon.size() == 4)
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44 {
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45 this->closeShape(document);
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46 }
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47 }
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48 }
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49 this->previewPolygon = this->polygon;
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50 return true;
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51 }
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52
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53 bool DrawTool::mouseMove(Document* document, Canvas* canvas)
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54 {
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55 static_cast<void>(document);
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56 const auto& worldPosition = canvas->getWorldPosition();
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57 if (worldPosition.has_value())
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58 {
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59 this->previewPoint = worldPosition.value();
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60 if (this->polygon.size() < 4)
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61 {
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62 this->previewPolygon.resize(this->polygon.size() + 1);
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63 this->previewPolygon.back() = this->previewPoint;
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64 }
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65 }
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66 return false;
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67 }
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69 void DrawTool::reset()
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70 {
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71 this->polygon.clear();
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72 }
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74 void DrawTool::overpaint(Canvas* canvas, QPainter* painter) const
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75 {
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76 painter->setBrush(::polygonBrush);
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77 painter->setPen(::polygonPen);
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78 canvas->drawWorldPolygon(painter, this->previewPolygon);
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79 painter->setBrush(::pointBrush);
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80 painter->setPen(::pointPen);
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81 for (const glm::vec3& point : this->polygon)
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82 {
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83 canvas->drawWorldPoint(painter, point);
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84 }
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85 if (this->polygon.size() < 4)
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86 {
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87 canvas->drawWorldPoint(painter, this->previewPoint);
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88 }
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89 }
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90
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91 template<std::size_t N, typename T>
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92 std::array<T, N> vectorToArray(const std::vector<T>& x)
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93 {
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94 std::array<T, N> result;
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95 for (std::size_t i = 0; i < x.size() and i < N; i += 1)
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96 {
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97 result[i] = x[i];
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98 }
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99 return result;
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100 }
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101
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102 void DrawTool::closeShape(Document* document)
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103 {
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104 if (this->polygon.size() >= 2 and this->polygon.size() <= 4)
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105 {
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106 Model::EditContext edit = document->editModel();
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107 switch (this->polygon.size())
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108 {
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109 case 2:
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110 edit.append<ldraw::Edge>(vectorToArray<2>(this->polygon), ldraw::edgeColor);
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111 break;
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112 case 3:
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113 edit.append<ldraw::Triangle>(vectorToArray<3>(this->polygon), ldraw::mainColor);
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114 break;
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115 case 4:
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116 edit.append<ldraw::Quadrilateral>(vectorToArray<4>(this->polygon), ldraw::mainColor);
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117 break;
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118 }
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119 }
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120 this->polygon.clear();
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121 }

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