src/layers/edittools.cpp

Sun, 09 Apr 2023 16:01:38 +0300

author
Teemu Piippo <teemu.s.piippo@gmail.com>
date
Sun, 09 Apr 2023 16:01:38 +0300
changeset 363
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parent 333
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child 372
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permissions
-rw-r--r--

Removed unused code

24
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1 /*
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2 * LDForge: LDraw parts authoring CAD
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3 * Copyright (C) 2013 - 2020 Teemu Piippo
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4 *
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5 * This program is free software: you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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Teemu Piippo <teemu@hecknology.net>
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7 * the Free Software Foundation, either version 3 of the License, or
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Teemu Piippo <teemu@hecknology.net>
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8 * (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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19 #include <QMouseEvent>
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20 #include <QPainter>
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21 #include "src/model.h"
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22 #include "src/gl/partrenderer.h"
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23 #include "src/circularprimitive.h"
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24 #include "src/layers/edittools.h"
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25 #include "src/invert.h"
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26 #include "src/triangulate.h"
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27
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28 EditTools::EditTools(QObject* parent) :
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29 QObject{parent},
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30 RenderLayer{}
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31 {
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32 }
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33
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34 EditTools::~EditTools()
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35 {
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36 }
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37
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38 void EditTools::setEditMode(EditingMode newMode)
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39 {
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40 this->mode = newMode;
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41 switch (this->mode) {
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42 case SelectMode:
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43 Q_EMIT this->suggestCursor(Qt::ArrowCursor);
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44 break;
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45 case DrawMode:
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46 case CircleMode:
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47 Q_EMIT this->suggestCursor(Qt::CrossCursor);
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48 break;
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49 }
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50 }
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51
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52 void EditTools::setGridMatrix(const glm::mat4& newGridMatrix)
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53 {
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54 this->gridMatrix = newGridMatrix;
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55 this->gridPlane = planeFromTriangle({
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56 this->gridMatrix * glm::vec4{0, 0, 0, 1},
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57 this->gridMatrix * glm::vec4{1, 0, 0, 1},
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58 this->gridMatrix * glm::vec4{0, 1, 0, 1},
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59 });
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60 }
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61
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62 void EditTools::setCircleToolOptions(const CircleToolOptions& options)
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63 {
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64 this->circleToolOptions = options;
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65 }
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66
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67 void EditTools::mvpMatrixChanged(const glm::mat4& matrix)
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68 {
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69 this->mvpMatrix = matrix;
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70 }
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71
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72 void EditTools::mouseMoved(const QMouseEvent* event)
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73 {
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74 this->worldPosition = this->renderer->screenToModelCoordinates(event->pos(), this->gridPlane);
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75 this->localPosition = event->localPos();
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76 if (this->worldPosition.has_value())
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77 {
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78 // Snap the position to grid. This procedure is basically the "change of basis" and almost follows the
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79 // A⁻¹ × M × A formula which is used to perform a transformation in some other coordinate system, except
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80 // we actually use the inverted matrix first and the regular one last to perform the transformation of
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81 // grid coordinates in our XY coordinate system. Also, we're rounding the coordinates which is obviously
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82 // not a linear transformation, but fits the pattern anyway.
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83 // First transform the coordinates to the XY plane...
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84 this->worldPosition = glm::inverse(this->gridMatrix) * glm::vec4{*this->worldPosition, 1};
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85 // Then round the coordinates to integer precision...
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86 this->worldPosition = glm::round(*this->worldPosition);
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87 // And finally transform it back to grid coordinates by transforming it with the
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88 // grid matrix.
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89 this->worldPosition = this->gridMatrix * glm::vec4{*this->worldPosition, 1};
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90 this->inputPolygon.updateCurrentPoint(*this->worldPosition);
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91 }
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92 }
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93
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94 //! \brief Conversion function from PlainPolygonElement to ModelElement
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95 ModelElement elementFromPolygonAndColor(const PlainPolygonElement& poly, ColorIndex color)
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96 {
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97 // use std::visit with a templated lambda to resolve the type of poly.
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98 return std::visit([color](const auto& resolvedPoly) -> ModelElement {
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99 // unlike with normal templates we need to pry out the type out manually
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100 using PolygonType = std::decay_t<decltype(resolvedPoly)>;
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101 // add color and return as a model element.
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102 return Colored<PolygonType>{resolvedPoly, color};
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103 }, poly);
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104 }
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105
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106 static std::vector<std::vector<glm::vec3>> polygonsToBeInserted(const ModelAction& action)
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107 {
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108 std::vector<std::vector<glm::vec3>> result;
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109 if (const AppendToModel* append = std::get_if<AppendToModel>(&action)) {
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110 const ModelElement& newElement = append->newElement;
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111 if (const LineSegment* seg = std::get_if<Colored<LineSegment>>(&newElement)) {
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112 result.push_back({seg->p1, seg->p2});
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113 }
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114 else if (const Triangle* tri = std::get_if<Colored<Triangle>>(&newElement)) {
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115 result.push_back({tri->p1, tri->p2, tri->p3});
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116 }
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117 else if (const Quadrilateral* quad = std::get_if<Colored<Quadrilateral>>(&newElement)) {
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118 result.push_back({quad->p1, quad->p2, quad->p3, quad->p4});
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119 }
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120 else if (const CircularPrimitive* circ = std::get_if<Colored<CircularPrimitive>>(&newElement)) {
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121 // rasterize the circle down to polygons, and append them to the result.
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122 rasterize(*circ, [&](const PlainPolygonElement& poly, const ColorIndex color){
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123 AppendToModel append{elementFromPolygonAndColor(poly, color)};
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124 const auto& subpoints = polygonsToBeInserted(append);
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125 std::copy(subpoints.begin(), subpoints.end(), std::back_inserter(result));
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126 });
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127 }
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128 }
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129 return result;
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130 }
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131
228
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132 namespace {
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133 struct Pens
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134 {
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135 const QBrush pointBrush;
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136 const QPen pointPen;
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137 const QPen textPen;
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138 const QPen polygonPen;
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139 const QBrush greenPolygonBrush;
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140 const QBrush redPolygonBrush;
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141 };
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142 }
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143
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144 static const Pens brightPens{
245
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145 .pointBrush = {Qt::black},
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146 .pointPen = {QBrush{Qt::black}, 2.0},
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147 .textPen = {Qt::black},
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148 .polygonPen = {QBrush{Qt::black}, 2.0, Qt::DashLine},
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149 .greenPolygonBrush = {QColor{64, 255, 128, 192}},
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150 .redPolygonBrush = {QColor{255, 96, 96, 192}},
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151 };
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152
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153 static const Pens darkPens{
245
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154 .pointBrush = {Qt::white},
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155 .pointPen = {QBrush{Qt::white}, 2.0},
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156 .textPen = {Qt::white},
228
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157 .polygonPen = {QBrush{Qt::white}, 2.0, Qt::DashLine},
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158 .greenPolygonBrush = {QColor{64, 255, 128, 192}},
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159 .redPolygonBrush = {QColor{255, 96, 96, 192}},
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160 };
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161
217
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162 void EditTools::overpaint(QPainter* painter)
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163 {
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164 painter->save();
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165 if (this->usePolygon()) {
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166 const Pens& pens = (this->renderer->isDark() ? darkPens : brightPens);
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167 this->renderPreview(painter, &pens);
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168 QFont font;
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169 font.setBold(true);
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170 if (this->usePolygon() and this->worldPosition.has_value())
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171 {
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172 painter->setRenderHint(QPainter::Antialiasing);
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173 painter->setPen(pens.pointPen);
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174 painter->setBrush(pens.greenPolygonBrush);
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175 const QPointF pos = this->renderer->modelToScreenCoordinates(*this->worldPosition);
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176 painter->drawEllipse(pos, 5, 5);
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177 drawBorderedText(painter, pos + QPointF{5, 5}, font, vectorToString(*this->worldPosition));
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178 }
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179 }
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180 painter->restore();
197
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181 }
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182
232
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183 const std::vector<ModelAction> EditTools::modelActions() const
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184 {
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185 switch(this->mode) {
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186 case SelectMode:
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187 return {};
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188 case DrawMode:
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189 return drawModeActions();
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190 case CircleMode:
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191 return circleModeActions();
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192 }
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193 }
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194
228
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195 void EditTools::renderPreview(QPainter* painter, const void* pensptr)
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196 {
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197 const Pens& pens = *reinterpret_cast<const Pens*>(pensptr);
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198 painter->setPen(pens.polygonPen);
232
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199 for (const ModelAction& action : this->modelActions()) {
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200 for (const std::vector<glm::vec3>& points : polygonsToBeInserted(action)) {
232
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201 if (points.size() == 2) {
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202 drawWorldPolyline(painter, points, renderer);
228
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203 }
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204 else {
232
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205 if (worldPolygonWinding(points, this->renderer) == Winding::Clockwise) {
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206 painter->setBrush(pens.greenPolygonBrush);
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207 }
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208 else {
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209 painter->setBrush(pens.redPolygonBrush);
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210 }
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211 drawWorldPolygon(painter, points, this->renderer);
228
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212 }
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213 }
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214 }
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215 painter->setBrush(pens.pointBrush);
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216 painter->setPen(pens.pointPen);
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217 for (const glm::vec3& point : this->inputPolygon) {
228
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218 drawWorldPoint(painter, point, this->renderer);
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219 }
322
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220 if (this->mode == CircleMode and this->inputPolygon.polygonSize() >= 2) {
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221 const glm::vec3 circleOrigin = this->inputPolygon[0];
314
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222 const QPointF originScreen = this->renderer->modelToScreenCoordinates(circleOrigin);
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223 const auto extremity = [this, &originScreen](const glm::vec3& p){
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224 const QPointF s2 = this->renderer->modelToScreenCoordinates(p);
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225 const auto intersection = rayRectangleIntersection(
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226 rayFromPoints(toVec2(originScreen), toVec2(s2)),
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227 this->renderer->rect());
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228 if (intersection.has_value()) {
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229 return intersection->position;
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230 }
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231 else {
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232 return glm::vec2{s2.x(), s2.y()};
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233 }
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234 };
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235 const glm::vec3 zvec = this->gridMatrix[2];
324
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diff changeset
236 if (this->inputPolygon.bufferSize() >= 3) {
322
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237 const glm::vec2 p1 = extremity(this->inputPolygon[0] + zvec);
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238 const glm::vec2 p2 = extremity(this->inputPolygon[0] - zvec);
315
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diff changeset
239 const glm::vec2 lateral = glm::normalize(glm::mat2{{0, 1}, {-1, 0}} * (p2 - p1));
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240 painter->setPen(QPen{Qt::white, 3});
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241 painter->drawLine(vecToQPoint(p1), vecToQPoint(p2));
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242 constexpr float notchsize = 40.0f;
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243 for (int a = -30; a <= 30; ++a) {
322
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244 const glm::vec3 notch = this->inputPolygon[0] + static_cast<float>(a) * zvec;
315
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245 const QPointF s_notchcenter = this->renderer->modelToScreenCoordinates(notch);
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246 const QPointF notch_s1 = s_notchcenter + notchsize * 0.5f * vecToQPoint(lateral);
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diff changeset
247 const QPointF notch_s2 = s_notchcenter - notchsize * 0.5f * vecToQPoint(lateral);
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diff changeset
248 painter->drawLine(notch_s1, notch_s2);
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249 }
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250 const opt<float> height = this->cylinderHeight();
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diff changeset
251 if (height.has_value()) {
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diff changeset
252 const glm::vec3 heightvec = height.value_or(0) * zvec;
322
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diff changeset
253 const glm::vec3 p = this->inputPolygon[1] + 0.5f * heightvec;
315
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diff changeset
254 QFont font{};
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diff changeset
255 font.setBold(true);
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diff changeset
256 drawBorderedText(painter, this->renderer->modelToScreenCoordinates(p), font, QString::number(*height));
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diff changeset
257 }
314
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258 }
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259 }
228
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260 }
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261
315
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diff changeset
262 opt<float> EditTools::cylinderHeight() const
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diff changeset
263 {
322
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diff changeset
264 if (this->inputPolygon.bufferSize() < 3) {
315
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diff changeset
265 return {};
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diff changeset
266 }
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diff changeset
267 else {
323
3c09c937848c Fix normal of the plane used to find cylinder height
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diff changeset
268 const glm::vec3 cameravec = glm::normalize(this->renderer->cameraVector(this->localPosition));
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diff changeset
269 const glm::vec3 heightvec = glm::normalize(glm::vec3{gridMatrix[2]});
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diff changeset
270 const glm::vec3 normal = glm::cross(glm::cross(cameravec, heightvec), heightvec);
315
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diff changeset
271 const Plane plane{
323
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diff changeset
272 .normal = normal,
322
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273 .anchor = this->inputPolygon[0],
315
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274 };
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275 const opt<glm::vec3> p = this->renderer->screenToModelCoordinates(this->localPosition, plane);
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diff changeset
276 if (p.has_value()) {
322
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277 return std::round(glm::dot(*p - this->inputPolygon[0], heightvec));
315
23b47902d857 Improve preview of cylinder extrusion
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278 }
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279 else {
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280 return {};
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281 }
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282 }
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283 }
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diff changeset
284
217
6d95c1a41e6e reimplement EditTools as a render layer
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285 EditingMode EditTools::currentEditingMode() const
197
0e729e681a2c move drawState to Document
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286 {
217
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287 return this->mode;
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288 }
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289
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290 void EditTools::mouseClick(const QMouseEvent* event)
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diff changeset
291 {
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292 switch(this->mode) {
197
0e729e681a2c move drawState to Document
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293 case SelectMode:
217
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294 if (event->button() == Qt::LeftButton) {
333
07e65a4c6611 Experiment to delete the Model class and rely solely on text documents
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295 const std::int32_t highlighted = this->renderer->pick(event->pos());
217
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296 Q_EMIT this->select({highlighted}, false);
197
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297 }
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298 break;
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299 case DrawMode:
217
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300 if (event->button() == Qt::LeftButton and this->worldPosition.has_value()) {
322
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301 if (this->inputPolygon.currentPointOnExistingPoint()) {
197
0e729e681a2c move drawState to Document
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302 this->closeShape();
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303 }
214
8e1fe64ce4e3 begin refactor of gl side
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304 else {
322
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305 this->inputPolygon.finishCurrentPoint();
197
0e729e681a2c move drawState to Document
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306 }
0e729e681a2c move drawState to Document
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diff changeset
307 }
232
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diff changeset
308 break;
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309 case CircleMode:
316
aab8e139a149 Allow make a cylinder even if the world position is not on grid
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diff changeset
310 if (event->button() == Qt::LeftButton) {
322
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diff changeset
311 if (this->inputPolygon.bufferSize() == 3) {
232
8efa3a33172e Add base code for circular primitives
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diff changeset
312 this->closeShape();
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diff changeset
313 }
316
aab8e139a149 Allow make a cylinder even if the world position is not on grid
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diff changeset
314 else if (this->worldPosition.has_value()) {
322
a39f454a3d7f Reduce edittools.cpp further
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diff changeset
315 this->inputPolygon.finishCurrentPoint();
232
8efa3a33172e Add base code for circular primitives
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diff changeset
316 }
197
0e729e681a2c move drawState to Document
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diff changeset
317 }
0e729e681a2c move drawState to Document
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diff changeset
318 break;
0e729e681a2c move drawState to Document
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diff changeset
319 }
322
a39f454a3d7f Reduce edittools.cpp further
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parents: 320
diff changeset
320 if (event->button() == Qt::RightButton) {
a39f454a3d7f Reduce edittools.cpp further
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diff changeset
321 this->inputPolygon.removeLastPoint();
232
8efa3a33172e Add base code for circular primitives
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diff changeset
322 }
223
ce81db996275 Use Mapbox's ear clipping algorithm to handle drawing any simple polygon
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diff changeset
323 }
ce81db996275 Use Mapbox's ear clipping algorithm to handle drawing any simple polygon
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diff changeset
324
232
8efa3a33172e Add base code for circular primitives
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diff changeset
325
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diff changeset
326 const std::vector<ModelAction> EditTools::circleModeActions() const
8efa3a33172e Add base code for circular primitives
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diff changeset
327 {
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diff changeset
328 std::vector<ModelAction> result;
322
a39f454a3d7f Reduce edittools.cpp further
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parents: 320
diff changeset
329 if (this->inputPolygon.polygonSize() >= 2) {
a39f454a3d7f Reduce edittools.cpp further
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diff changeset
330 const glm::vec3 x = this->inputPolygon[1] - this->inputPolygon[0];
315
23b47902d857 Improve preview of cylinder extrusion
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parents: 314
diff changeset
331 const opt<float> cyliheight = this->cylinderHeight().value_or(1);
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
332 glm::mat4 transform{
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
333 glm::vec4{x, 0},
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diff changeset
334 *cyliheight * this->gridMatrix[2],
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diff changeset
335 glm::vec4{glm::cross(glm::vec3{-this->gridMatrix[2]}, x), 0},
322
a39f454a3d7f Reduce edittools.cpp further
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diff changeset
336 glm::vec4{this->inputPolygon[0], 1},
315
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
337 };
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
338 Colored<CircularPrimitive> circ{
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
339 CircularPrimitive{
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
340 .type = this->circleToolOptions.type,
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
341 .fraction = this->circleToolOptions.fraction,
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
342 .transformation = transform,
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diff changeset
343 },
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diff changeset
344 MAIN_COLOR
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diff changeset
345 };
23b47902d857 Improve preview of cylinder extrusion
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diff changeset
346 result.push_back(AppendToModel{.newElement = circ});
232
8efa3a33172e Add base code for circular primitives
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diff changeset
347 }
8efa3a33172e Add base code for circular primitives
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diff changeset
348 return result;
8efa3a33172e Add base code for circular primitives
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diff changeset
349 }
8efa3a33172e Add base code for circular primitives
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diff changeset
350
8efa3a33172e Add base code for circular primitives
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diff changeset
351 const std::vector<ModelAction> EditTools::drawModeActions() const
197
0e729e681a2c move drawState to Document
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diff changeset
352 {
222
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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diff changeset
353 std::vector<ModelAction> result;
322
a39f454a3d7f Reduce edittools.cpp further
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parents: 320
diff changeset
354 if (this->inputPolygon.polygonSize() == 2) {
a39f454a3d7f Reduce edittools.cpp further
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parents: 320
diff changeset
355 result.push_back(AppendToModel{edge(this->inputPolygon[0], this->inputPolygon[1])});
223
ce81db996275 Use Mapbox's ear clipping algorithm to handle drawing any simple polygon
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parents: 222
diff changeset
356 }
322
a39f454a3d7f Reduce edittools.cpp further
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parents: 320
diff changeset
357 else if (this->inputPolygon.polygonSize() > 2) {
319
9727e545b0bc Extract the triangulation and triangle merging code into a new source file and clean it up somewhat
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 316
diff changeset
358 for (const PlainPolygonElement& poly : polygonize(
322
a39f454a3d7f Reduce edittools.cpp further
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parents: 320
diff changeset
359 this->inputPolygon.begin(),
a39f454a3d7f Reduce edittools.cpp further
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 320
diff changeset
360 this->inputPolygon.polygonEnd())
319
9727e545b0bc Extract the triangulation and triangle merging code into a new source file and clean it up somewhat
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 316
diff changeset
361 ) {
222
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
362 result.push_back(AppendToModel{
319
9727e545b0bc Extract the triangulation and triangle merging code into a new source file and clean it up somewhat
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 316
diff changeset
363 .newElement = elementFromPolygonAndColor(poly, MAIN_COLOR),
204
52e10e8d88cc Concentrate model editing into one coroutine inside main()
Teemu Piippo <teemu@hecknology.net>
parents: 203
diff changeset
364 });
223
ce81db996275 Use Mapbox's ear clipping algorithm to handle drawing any simple polygon
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parents: 222
diff changeset
365 }
197
0e729e681a2c move drawState to Document
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parents: 191
diff changeset
366 }
222
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
367 return result;
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
368 }
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
369
311
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
370 bool EditTools::usePolygon() const
fab454611f9b Use different cursors depending on edit mode
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parents: 310
diff changeset
371 {
fab454611f9b Use different cursors depending on edit mode
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parents: 310
diff changeset
372 switch (this->mode) {
fab454611f9b Use different cursors depending on edit mode
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parents: 310
diff changeset
373 case SelectMode:
fab454611f9b Use different cursors depending on edit mode
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parents: 310
diff changeset
374 return false;
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
375 case DrawMode:
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
376 case CircleMode:
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
377 return true;
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
378 }
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
379 return {};
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
380 }
fab454611f9b Use different cursors depending on edit mode
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 310
diff changeset
381
222
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
382 void EditTools::closeShape()
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
383 {
232
8efa3a33172e Add base code for circular primitives
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parents: 228
diff changeset
384 for (const ModelAction& action : this->modelActions()) {
222
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
385 Q_EMIT this->modelAction(action);
72b456f2f3c2 Edit tools: get rid of the preview polygon and render the result-to-be
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parents: 217
diff changeset
386 }
322
a39f454a3d7f Reduce edittools.cpp further
Teemu Piippo <teemu.s.piippo@gmail.com>
parents: 320
diff changeset
387 this->inputPolygon.clear();
197
0e729e681a2c move drawState to Document
Teemu Piippo <teemu@hecknology.net>
parents: 191
diff changeset
388 }

mercurial