src/editmodes/abstractEditMode.cpp

Sun, 04 Oct 2015 16:45:30 +0300

author
Teemu Piippo <crimsondusk64@gmail.com>
date
Sun, 04 Oct 2015 16:45:30 +0300
changeset 1008
74cb432812d3
parent 1006
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child 1012
413ecd6b9801
permissions
-rw-r--r--

Fixed circle, rectangle and line path modes not working anymore. Add blip coordinates to curve and line path modes. Circle mode for now only can show the coordinates of the initial blip

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1 /*
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2 * LDForge: LDraw parts authoring CAD
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3 * Copyright (C) 2013 - 2015 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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7 * the Free Software Foundation, either version 3 of the License, or
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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 <stdexcept>
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21 #include "abstractEditMode.h"
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22 #include "selectMode.h"
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23 #include "drawMode.h"
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24 #include "rectangleMode.h"
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25 #include "circleMode.h"
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26 #include "magicWandMode.h"
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27 #include "linePathMode.h"
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28 #include "curvemode.h"
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29 #include "../mainwindow.h"
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30 #include "../glRenderer.h"
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31 #include "../miscallenous.h"
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32
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33 ConfigOption (bool DrawLineLengths = true)
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34 ConfigOption (bool DrawAngles = false)
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35
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36 AbstractEditMode::AbstractEditMode (GLRenderer* renderer) :
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37 QObject (renderer),
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38 HierarchyElement (renderer),
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39 m_renderer (renderer) {}
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40
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41 AbstractEditMode::~AbstractEditMode() {}
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42
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43 AbstractEditMode* AbstractEditMode::createByType (GLRenderer* renderer, EditModeType type)
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44 {
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45 switch (type)
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46 {
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47 case EditModeType::Select: return new SelectMode (renderer);
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48 case EditModeType::Draw: return new DrawMode (renderer);
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49 case EditModeType::Rectangle: return new RectangleMode (renderer);
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50 case EditModeType::Circle: return new CircleMode (renderer);
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51 case EditModeType::MagicWand: return new MagicWandMode (renderer);
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52 case EditModeType::LinePath: return new LinePathMode (renderer);
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53 case EditModeType::Curve: return new CurveMode (renderer);
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54 }
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55
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56 throw std::logic_error ("bad type given to AbstractEditMode::createByType");
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57 }
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58
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59 GLRenderer* AbstractEditMode::renderer() const
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60 {
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61 return m_renderer;
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62 }
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63
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64 AbstractDrawMode::AbstractDrawMode (GLRenderer* renderer) :
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65 AbstractEditMode (renderer),
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66 m_polybrush (QBrush (QColor (64, 192, 0, 128)))
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67 {
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68 renderer->setContextMenuPolicy (Qt::NoContextMenu); // We need the right mouse button for removing vertices
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69 renderer->setCursor (Qt::CrossCursor);
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70 m_window->currentDocument()->clearSelection();
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71 m_window->updateSelection();
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72 m_drawedVerts.clear();
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73 }
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74
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75 AbstractSelectMode::AbstractSelectMode (GLRenderer* renderer) :
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76 AbstractEditMode (renderer)
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77 {
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78 renderer->unsetCursor();
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79 renderer->setContextMenuPolicy (Qt::DefaultContextMenu);
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80 }
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81
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82 // =============================================================================
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83 //
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84 void AbstractDrawMode::addDrawnVertex (Vertex const& pos)
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85 {
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86 if (preAddVertex (pos))
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87 return;
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88
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89 m_drawedVerts << pos;
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90 }
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91
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92 bool AbstractDrawMode::mouseReleased (MouseEventData const& data)
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93 {
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94 if (Super::mouseReleased (data))
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95 return true;
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96
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97 if ((data.releasedButtons & Qt::MidButton) and (m_drawedVerts.size() < 4) and (not data.mouseMoved))
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98 {
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99 // Find the closest vertex to our cursor
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100 double minimumDistance = 1024.0;
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101 const Vertex* closest = nullptr;
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102 Vertex cursorPosition = renderer()->convert2dTo3d (data.ev->pos(), false);
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103 QPoint cursorPosition2D (data.ev->pos());
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104 const Axis relZ = renderer()->getRelativeZ();
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105 QVector<Vertex> vertices = renderer()->document()->inlineVertices();
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106
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107 // Sort the vertices in order of distance to camera
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108 std::sort (vertices.begin(), vertices.end(), [&](const Vertex& a, const Vertex& b) -> bool
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109 {
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110 if (renderer()->getFixedCamera (renderer()->camera()).negatedDepth)
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111 return a[relZ] > b[relZ];
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112
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113 return a[relZ] < b[relZ];
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114 });
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115
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116 for (const Vertex& vrt : vertices)
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117 {
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118 // If the vertex in 2d space is very close to the cursor then we use it regardless of depth.
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119 QPoint vect2d = renderer()->convert3dTo2d (vrt) - cursorPosition2D;
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120 const double distance2DSquared = std::pow (vect2d.x(), 2) + std::pow (vect2d.y(), 2);
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121 if (distance2DSquared < 16.0 * 16.0)
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122 {
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123 closest = &vrt;
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124 break;
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125 }
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126
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127 // Check if too far away from the cursor.
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128 if (distance2DSquared > 64.0 * 64.0)
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129 continue;
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
130
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
131 // Not very close to the cursor. Compare using true distance,
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Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
132 // including depth.
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
133 const double distanceSquared = (vrt - cursorPosition).lengthSquared();
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
134
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
135 if (distanceSquared < minimumDistance)
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
136 {
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
137 minimumDistance = distanceSquared;
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
138 closest = &vrt;
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Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
139 }
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
140 }
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
141
985
ed7b31b9f904 Remove "!= nullptr" expressions
Teemu Piippo <crimsondusk64@gmail.com>
parents: 984
diff changeset
142 if (closest)
823
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Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
143 addDrawnVertex (*closest);
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Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
144
1a2f593f0c02 - saving work done on edit mode revamp
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diff changeset
145 return true;
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parents:
diff changeset
146 }
1a2f593f0c02 - saving work done on edit mode revamp
Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
147
861
83426c5fa732 - major identifier renaming
Teemu Piippo <crimsondusk64@gmail.com>
parents: 850
diff changeset
148 if ((data.releasedButtons & Qt::RightButton) and (not m_drawedVerts.isEmpty()))
825
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parents: 824
diff changeset
149 {
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parents: 824
diff changeset
150 // Remove the last vertex
861
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 850
diff changeset
151 m_drawedVerts.removeLast();
1000
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
152 return true;
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
153 }
825
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Santeri Piippo <crimsondusk64@gmail.com>
parents: 824
diff changeset
154
1000
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
155 if (data.releasedButtons & Qt::LeftButton)
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
156 {
1008
74cb432812d3 Fixed circle, rectangle and line path modes not working anymore. Add blip coordinates to curve and line path modes. Circle mode for now only can show the coordinates of the initial blip
Teemu Piippo <crimsondusk64@gmail.com>
parents: 1006
diff changeset
157 if (maxVertices() and m_drawedVerts.size() >= maxVertices())
1000
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
158 {
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
159 endDraw();
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
160 return true;
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
161 }
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
162
c064cc048f14 Begin work on Bézier curve support. They can be drawn but don't render in 3D and they load as comments.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 986
diff changeset
163 addDrawnVertex (getCursorVertex());
825
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Santeri Piippo <crimsondusk64@gmail.com>
parents: 824
diff changeset
164 return true;
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parents: 824
diff changeset
165 }
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Santeri Piippo <crimsondusk64@gmail.com>
parents: 824
diff changeset
166
823
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167 return false;
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Santeri Piippo <crimsondusk64@gmail.com>
parents:
diff changeset
168 }
825
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169
841
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Teemu Piippo <crimsondusk64@gmail.com>
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diff changeset
170 void AbstractDrawMode::finishDraw (LDObjectList const& objs)
825
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Santeri Piippo <crimsondusk64@gmail.com>
parents: 824
diff changeset
171 {
981
5d5d84ab2c48 Refactor MainWindow's API
Teemu Piippo <crimsondusk64@gmail.com>
parents: 978
diff changeset
172 int pos = m_window->suggestInsertPoint();
875
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
173
825
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Santeri Piippo <crimsondusk64@gmail.com>
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diff changeset
174 if (objs.size() > 0)
f7649c9bfd9a - more work on edit modes
Santeri Piippo <crimsondusk64@gmail.com>
parents: 824
diff changeset
175 {
944
1a6f1997fcbe Replace casts
Teemu Piippo <crimsondusk64@gmail.com>
parents: 876
diff changeset
176 for (LDObject* obj : objs)
825
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diff changeset
177 {
875
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diff changeset
178 renderer()->document()->insertObj (pos++, obj);
825
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diff changeset
179 renderer()->compileObject (obj);
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diff changeset
180 }
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diff changeset
181
970
c8aae45afd85 Commit configuration rework (doesn't work yet, more than most probably doesn't compile either)
Teemu Piippo <crimsondusk64@gmail.com>
parents: 968
diff changeset
182 m_window->refresh();
c8aae45afd85 Commit configuration rework (doesn't work yet, more than most probably doesn't compile either)
Teemu Piippo <crimsondusk64@gmail.com>
parents: 968
diff changeset
183 m_window->endAction();
825
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diff changeset
184 }
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Santeri Piippo <crimsondusk64@gmail.com>
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diff changeset
185
861
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diff changeset
186 m_drawedVerts.clear();
825
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parents: 824
diff changeset
187 }
841
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Teemu Piippo <crimsondusk64@gmail.com>
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diff changeset
188
875
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diff changeset
189 void AbstractDrawMode::drawLength (QPainter &painter, const Vertex &v0, const Vertex &v1,
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
190 const QPointF& v0p, const QPointF& v1p) const
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
191 {
971
c00f9665a9f8 Now compiles and links but crashes shortly after startup.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 970
diff changeset
192 if (not m_config->drawLineLengths())
875
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
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diff changeset
193 return;
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
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diff changeset
194
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parents: 874
diff changeset
195 const QString label = QString::number ((v1 - v0).length());
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parents: 874
diff changeset
196 QPoint origin = QLineF (v0p, v1p).pointAt (0.5).toPoint();
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
197 painter.drawText (origin, label);
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Teemu Piippo <crimsondusk64@gmail.com>
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diff changeset
198 }
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Teemu Piippo <crimsondusk64@gmail.com>
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diff changeset
199
866
4951b737f8cb - now able to spawn partial circular primitives
Teemu Piippo <crimsondusk64@gmail.com>
parents: 861
diff changeset
200 void AbstractDrawMode::renderPolygon (QPainter& painter, const QVector<Vertex>& poly3d,
4951b737f8cb - now able to spawn partial circular primitives
Teemu Piippo <crimsondusk64@gmail.com>
parents: 861
diff changeset
201 bool withlengths, bool withangles) const
841
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
202 {
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
203 QVector<QPoint> poly (poly3d.size());
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
204 QFontMetrics metrics = QFontMetrics (QFont());
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parents: 840
diff changeset
205
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
206 // Convert to 2D
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
207 for (int i = 0; i < poly3d.size(); ++i)
986
525921eae58c Refactor GLRenderer and GLCompiler
Teemu Piippo <crimsondusk64@gmail.com>
parents: 985
diff changeset
208 poly[i] = renderer()->convert3dTo2d (poly3d[i]);
841
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
209
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
210 // Draw the polygon-to-be
861
83426c5fa732 - major identifier renaming
Teemu Piippo <crimsondusk64@gmail.com>
parents: 850
diff changeset
211 painter.setBrush (m_polybrush);
841
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
212 painter.drawPolygon (QPolygonF (poly));
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
213
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
214 // Draw vertex blips
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
215 for (int i = 0; i < poly3d.size(); ++i)
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
216 {
1008
74cb432812d3 Fixed circle, rectangle and line path modes not working anymore. Add blip coordinates to curve and line path modes. Circle mode for now only can show the coordinates of the initial blip
Teemu Piippo <crimsondusk64@gmail.com>
parents: 1006
diff changeset
217 renderer()->drawBlip (painter, poly[i]);
74cb432812d3 Fixed circle, rectangle and line path modes not working anymore. Add blip coordinates to curve and line path modes. Circle mode for now only can show the coordinates of the initial blip
Teemu Piippo <crimsondusk64@gmail.com>
parents: 1006
diff changeset
218 renderer()->drawBlipCoordinates (painter, poly3d[i], poly[i]);
841
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
219 }
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
220
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
221 // Draw line lenghts and angle info if appropriate
866
4951b737f8cb - now able to spawn partial circular primitives
Teemu Piippo <crimsondusk64@gmail.com>
parents: 861
diff changeset
222 if (poly3d.size() >= 2 and (withlengths or withangles))
841
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
223 {
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
224 painter.setPen (renderer()->textPen());
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
225
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
226 for (int i = 0; i < poly3d.size(); ++i)
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
227 {
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
228 const int j = (i + 1) % poly3d.size();
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
229 const int h = (i - 1 >= 0) ? (i - 1) : (poly3d.size() - 1);
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
230
875
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
231 if (withlengths)
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
232 drawLength (painter, poly3d[i], poly3d[j], poly[i], poly[j]);
841
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
233
971
c00f9665a9f8 Now compiles and links but crashes shortly after startup.
Teemu Piippo <crimsondusk64@gmail.com>
parents: 970
diff changeset
234 if (withangles and m_config->drawAngles())
841
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
235 {
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
236 QLineF l0 (poly[h], poly[i]),
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
237 l1 (poly[i], poly[j]);
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
238
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
239 double angle = 180 - l0.angleTo (l1);
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
240
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
241 if (angle < 0)
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
242 angle = 180 - l1.angleTo (l0);
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
243
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
244 QString label = QString::number (angle) + QString::fromUtf8 (QByteArray ("\302\260"));
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
245 QPoint pos = poly[i];
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
246 pos.setY (pos.y() + metrics.height());
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
247
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
248 painter.drawText (pos, label);
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Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
249 }
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
250 }
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
251 }
1243abd47381 - split the rectangle ability out of the draw mode into its own edit mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 840
diff changeset
252 }
875
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
253
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
254 bool AbstractDrawMode::keyReleased (QKeyEvent *ev)
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
255 {
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
256 if (Super::keyReleased (ev))
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
257 return true;
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
258
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
parents: 874
diff changeset
259 if (not m_drawedVerts.isEmpty() and ev->key() == Qt::Key_Backspace)
ce8e9b37d44f - finished line loop mode
Teemu Piippo <crimsondusk64@gmail.com>
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260 {
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261 m_drawedVerts.removeLast();
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262 return true;
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263 }
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264
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265 return false;
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266 }
1000
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267
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268 template<typename T>
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269 T intervalClamp (T a, T interval)
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270 {
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271 T remainder = a % interval;
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272
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273 if (remainder >= float (interval / 2))
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274 a += interval;
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275
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276 a -= remainder;
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277 return a;
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278 }
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279
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280 Vertex AbstractDrawMode::getCursorVertex() const
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281 {
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282 Vertex result = renderer()->position3D();
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283
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284 if (renderer()->keyboardModifiers() & Qt::ControlModifier
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285 and not m_drawedVerts.isEmpty())
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286 {
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287 Vertex const& v0 = m_drawedVerts.last();
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288 Vertex const& v1 = result;
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289 Axis relX, relY;
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290
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291 renderer()->getRelativeAxes (relX, relY);
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292 QLineF ln (v0[relX], v0[relY], v1[relX], v1[relY]);
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293 ln.setAngle (intervalClamp<int> (ln.angle(), 45));
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294 result.setCoordinate (relX, Grid::Snap (ln.x2(), Grid::Coordinate));
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295 result.setCoordinate (relY, Grid::Snap (ln.y2(), Grid::Coordinate));
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296 }
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297
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298 return result;
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299 }

mercurial