comparison: src/editmodes/drawMode.cpp
src/editmodes/drawMode.cpp
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- changeset 935
- 8d98ee0dc917
- parent 933
- f4c80d92e71e
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| 930:ab77deb851fa | 935:8d98ee0dc917 |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 - 2015 Teemu Piippo | |
| 4 * | |
| 5 * This program is free software: you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License as published by | |
| 7 * the Free Software Foundation, either version 3 of the License, or | |
| 8 * (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 * GNU General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License | |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 */ | |
| 18 | |
| 19 #include <QPainter> | |
| 20 #include <QMouseEvent> | |
| 21 #include "drawMode.h" | |
| 22 #include "../ldObject.h" | |
| 23 #include "../glRenderer.h" | |
| 24 #include "../miscallenous.h" | |
| 25 | |
| 26 DrawMode::DrawMode (GLRenderer* renderer) : | |
| 27 Super (renderer) {} | |
| 28 | |
| 29 EditModeType DrawMode::type() const | |
| 30 { | |
| 31 return EditModeType::Draw; | |
| 32 } | |
| 33 | |
| 34 void DrawMode::render (QPainter& painter) const | |
| 35 { | |
| 36 QVector<Vertex> poly; | |
| 37 QFontMetrics metrics = QFontMetrics (QFont()); | |
| 38 | |
| 39 for (Vertex const& vert : m_drawedVerts) | |
| 40 poly << vert; | |
| 41 | |
| 42 // Draw the cursor vertex as the last one in the list. | |
| 43 if (poly.size() < 4) | |
| 44 poly << getCursorVertex(); | |
| 45 | |
| 46 renderPolygon (painter, poly, true, true); | |
| 47 } | |
| 48 | |
| 49 bool DrawMode::preAddVertex (Vertex const& pos) | |
| 50 { | |
| 51 // If we picked an already-existing vertex, stop drawing | |
| 52 for (Vertex& vert : m_drawedVerts) | |
| 53 { | |
| 54 if (vert == pos) | |
| 55 { | |
| 56 endDraw(); | |
| 57 return true; | |
| 58 } | |
| 59 } | |
| 60 | |
| 61 return false; | |
| 62 } | |
| 63 | |
| 64 bool DrawMode::mouseReleased (MouseEventData const& data) | |
| 65 { | |
| 66 if (Super::mouseReleased (data)) | |
| 67 return true; | |
| 68 | |
| 69 if (data.releasedButtons & Qt::LeftButton) | |
| 70 { | |
| 71 // If we have 4 verts, stop drawing. | |
| 72 if (m_drawedVerts.size() >= 4) | |
| 73 { | |
| 74 endDraw(); | |
| 75 return true; | |
| 76 } | |
| 77 | |
| 78 addDrawnVertex (getCursorVertex()); | |
| 79 return true; | |
| 80 } | |
| 81 | |
| 82 return false; | |
| 83 } | |
| 84 | |
| 85 void DrawMode::endDraw() | |
| 86 { | |
| 87 // Clean the selection and create the object | |
| 88 QList<Vertex>& verts = m_drawedVerts; | |
| 89 LDObjectList objs; | |
| 90 | |
| 91 switch (verts.size()) | |
| 92 { | |
| 93 case 1: | |
| 94 return; | |
| 95 | |
| 96 case 2: | |
| 97 { | |
| 98 // 2 verts - make a line | |
| 99 LDLinePtr obj = LDSpawn<LDLine> (verts[0], verts[1]); | |
| 100 obj->setColor (EdgeColor()); | |
| 101 objs << obj; | |
| 102 break; | |
| 103 } | |
| 104 | |
| 105 case 3: | |
| 106 case 4: | |
| 107 { | |
| 108 LDObjectPtr obj = (verts.size() == 3) ? | |
| 109 static_cast<LDObjectPtr> (LDSpawn<LDTriangle>()) : | |
| 110 static_cast<LDObjectPtr> (LDSpawn<LDQuad>()); | |
| 111 | |
| 112 obj->setColor (MainColor()); | |
| 113 | |
| 114 for (int i = 0; i < verts.size(); ++i) | |
| 115 obj->setVertex (i, verts[i]); | |
| 116 | |
| 117 objs << obj; | |
| 118 break; | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 finishDraw (objs); | |
| 123 } | |
| 124 | |
| 125 template<typename _Type> | |
| 126 _Type IntervalClamp (_Type a, _Type interval) | |
| 127 { | |
| 128 _Type remainder = a % interval; | |
| 129 | |
| 130 if (remainder >= float (interval / 2)) | |
| 131 a += interval; | |
| 132 | |
| 133 a -= remainder; | |
| 134 return a; | |
| 135 } | |
| 136 | |
| 137 Vertex DrawMode::getCursorVertex() const | |
| 138 { | |
| 139 Vertex result = renderer()->position3D(); | |
| 140 | |
| 141 if (renderer()->keyboardModifiers() & Qt::ControlModifier | |
| 142 and not m_drawedVerts.isEmpty()) | |
| 143 { | |
| 144 Vertex const& v0 = m_drawedVerts.last(); | |
| 145 Vertex const& v1 = result; | |
| 146 Axis relX, relY; | |
| 147 | |
| 148 renderer()->getRelativeAxes (relX, relY); | |
| 149 QLineF ln (v0[relX], v0[relY], v1[relX], v1[relY]); | |
| 150 ln.setAngle (IntervalClamp<int> (ln.angle(), 45)); | |
| 151 result.setCoordinate (relX, Grid::Snap (ln.x2(), Grid::Coordinate)); | |
| 152 result.setCoordinate (relY, Grid::Snap (ln.y2(), Grid::Coordinate)); | |
| 153 } | |
| 154 | |
| 155 return result; | |
| 156 } |
