comparison: src/editmodes/circleMode.cc
src/editmodes/circleMode.cc
- changeset 952
- f116b63c4844
- parent 950
- 5df69eb50182
- child 953
- 8349552ee5e9
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| 950:5df69eb50182 | 952:f116b63c4844 |
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| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013, 2014 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 "circleMode.h" | |
| 21 #include "../miscallenous.h" | |
| 22 #include "../ldObject.h" | |
| 23 #include "../ldDocument.h" | |
| 24 #include "../ringFinder.h" | |
| 25 #include "../primitives.h" | |
| 26 #include "../glRenderer.h" | |
| 27 #include "../mainWindow.h" | |
| 28 #include "../ldObjectMath.h" | |
| 29 | |
| 30 CircleMode::CircleMode (GLRenderer* renderer) : | |
| 31 Super (renderer) {} | |
| 32 | |
| 33 EditModeType CircleMode::type() const | |
| 34 { | |
| 35 return EditModeType::Circle; | |
| 36 } | |
| 37 | |
| 38 double CircleMode::getCircleDrawDist (int pos) const | |
| 39 { | |
| 40 assert (m_drawedVerts.size() >= pos + 1); | |
| 41 Vertex v1 = (m_drawedVerts.size() >= pos + 2) ? m_drawedVerts[pos + 1] : | |
| 42 renderer()->coordconv2_3 (renderer()->mousePosition(), false); | |
| 43 Axis localx, localy; | |
| 44 renderer()->getRelativeAxes (localx, localy); | |
| 45 double dx = m_drawedVerts[0][localx] - v1[localx]; | |
| 46 double dy = m_drawedVerts[0][localy] - v1[localy]; | |
| 47 return Grid::Snap (sqrt ((dx * dx) + (dy * dy)), Grid::Coordinate); | |
| 48 } | |
| 49 | |
| 50 Matrix CircleMode::getCircleDrawMatrix (double scale) | |
| 51 { | |
| 52 // Matrix templates. 2 is substituted with the scale value, 1 is inverted to -1 if needed. | |
| 53 static const Matrix templates[3] = | |
| 54 { | |
| 55 { 2, 0, 0, 0, 1, 0, 0, 0, 2 }, | |
| 56 { 2, 0, 0, 0, 0, 2, 0, 1, 0 }, | |
| 57 { 0, 1, 0, 2, 0, 0, 0, 0, 2 }, | |
| 58 }; | |
| 59 | |
| 60 Matrix transform = templates[renderer()->camera() % 3]; | |
| 61 | |
| 62 for (int i = 0; i < 9; ++i) | |
| 63 { | |
| 64 if (transform[i] == 2) | |
| 65 transform[i] = scale; | |
| 66 elif (transform[i] == 1 and renderer()->camera() >= 3) | |
| 67 transform[i] = -1; | |
| 68 } | |
| 69 | |
| 70 return transform; | |
| 71 } | |
| 72 | |
| 73 void CircleMode::buildCircle() | |
| 74 { | |
| 75 LDObjectList objs; | |
| 76 const int segments (g_win->ringToolSegments()); | |
| 77 const int divisions (g_win->ringToolHiRes() ? HighResolution : LowResolution); | |
| 78 double dist0 (getCircleDrawDist (0)); | |
| 79 double dist1 (getCircleDrawDist (1)); | |
| 80 LDDocument* refFile; | |
| 81 Matrix transform; | |
| 82 bool circleOrDisc = false; | |
| 83 | |
| 84 if (dist1 < dist0) | |
| 85 qSwap (dist0, dist1); | |
| 86 | |
| 87 if (dist0 == dist1) | |
| 88 { | |
| 89 // If the radii are the same, there's no ring space to fill. Use a circle. | |
| 90 refFile = GetPrimitive (::Circle, segments, divisions, 0); | |
| 91 transform = getCircleDrawMatrix (dist0); | |
| 92 circleOrDisc = true; | |
| 93 } | |
| 94 elif (dist0 == 0 or dist1 == 0) | |
| 95 { | |
| 96 // If either radii is 0, use a disc. | |
| 97 refFile = GetPrimitive (::Disc, segments, divisions, 0); | |
| 98 transform = getCircleDrawMatrix ((dist0 != 0) ? dist0 : dist1); | |
| 99 circleOrDisc = true; | |
| 100 } | |
| 101 elif (g_RingFinder.findRings (dist0, dist1)) | |
| 102 { | |
| 103 // The ring finder found a solution, use that. Add the component rings to the file. | |
| 104 for (const RingFinder::Component& cmp : g_RingFinder.bestSolution()->getComponents()) | |
| 105 { | |
| 106 refFile = GetPrimitive (::Ring, segments, divisions, cmp.num); | |
| 107 LDSubfile* ref = LDSpawn<LDSubfile>(); | |
| 108 ref->setFileInfo (refFile); | |
| 109 ref->setTransform (getCircleDrawMatrix (cmp.scale)); | |
| 110 ref->setPosition (m_drawedVerts[0]); | |
| 111 ref->setColor (MainColor); | |
| 112 objs << ref; | |
| 113 } | |
| 114 } | |
| 115 else | |
| 116 { | |
| 117 // Ring finder failed, last resort: draw the ring with quads | |
| 118 QList<QLineF> c0, c1; | |
| 119 Axis localx, localy, localz; | |
| 120 renderer()->getRelativeAxes (localx, localy); | |
| 121 localz = (Axis) (3 - localx - localy); | |
| 122 double x0 (m_drawedVerts[0][localx]); | |
| 123 double y0 (m_drawedVerts[0][localy]); | |
| 124 | |
| 125 Vertex templ; | |
| 126 templ.setCoordinate (localx, x0); | |
| 127 templ.setCoordinate (localy, y0); | |
| 128 templ.setCoordinate (localz, renderer()->getDepthValue()); | |
| 129 | |
| 130 // Calculate circle coords | |
| 131 MakeCircle (segments, divisions, dist0, c0); | |
| 132 MakeCircle (segments, divisions, dist1, c1); | |
| 133 | |
| 134 for (int i = 0; i < segments; ++i) | |
| 135 { | |
| 136 Vertex v0, v1, v2, v3; | |
| 137 v0 = v1 = v2 = v3 = templ; | |
| 138 v0.setCoordinate (localx, v0[localx] + c0[i].x1()); | |
| 139 v0.setCoordinate (localy, v0[localy] + c0[i].y1()); | |
| 140 v1.setCoordinate (localx, v1[localx] + c0[i].x2()); | |
| 141 v1.setCoordinate (localy, v1[localy] + c0[i].y2()); | |
| 142 v2.setCoordinate (localx, v2[localx] + c1[i].x2()); | |
| 143 v2.setCoordinate (localy, v2[localy] + c1[i].y2()); | |
| 144 v3.setCoordinate (localx, v3[localx] + c1[i].x1()); | |
| 145 v3.setCoordinate (localy, v3[localy] + c1[i].y1()); | |
| 146 | |
| 147 LDQuad* quad (LDSpawn<LDQuad> (v0, v1, v2, v3)); | |
| 148 quad->setColor (MainColor); | |
| 149 | |
| 150 // Ensure the quads always are BFC-front towards the camera | |
| 151 if (renderer()->camera() % 3 <= 0) | |
| 152 quad->invert(); | |
| 153 | |
| 154 objs << quad; | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 if (circleOrDisc and refFile != null) | |
| 159 { | |
| 160 LDSubfile* ref = LDSpawn<LDSubfile>(); | |
| 161 ref->setFileInfo (refFile); | |
| 162 ref->setTransform (transform); | |
| 163 ref->setPosition (m_drawedVerts[0]); | |
| 164 ref->setColor (MainColor); | |
| 165 objs << ref; | |
| 166 } | |
| 167 | |
| 168 unless (objs.isEmpty()) | |
| 169 { | |
| 170 Axis relZ = renderer()->getRelativeZ();; | |
| 171 const int l (relZ == X ? 1 : 0); | |
| 172 const int m (relZ == Y ? 1 : 0); | |
| 173 const int n (relZ == Z ? 1 : 0); | |
| 174 RotateObjects (l, m, n, -m_angleOffset, objs); | |
| 175 } | |
| 176 | |
| 177 finishDraw (objs); | |
| 178 } | |
| 179 | |
| 180 double CircleMode::getAngleOffset() const | |
| 181 { | |
| 182 if (m_drawedVerts.isEmpty()) | |
| 183 return 0.0; | |
| 184 | |
| 185 const int divisions (g_win->ringToolHiRes() ? HighResolution : LowResolution); | |
| 186 QPointF originspot (renderer()->coordconv3_2 (m_drawedVerts.first())); | |
| 187 QLineF bearing (originspot, renderer()->mousePositionF()); | |
| 188 QLineF bearing2 (originspot, QPointF (originspot.x(), 0.0)); | |
| 189 double angleoffset (-bearing.angleTo (bearing2) + 90); | |
| 190 angleoffset /= (360.0 / divisions); // convert angle to 0-16 scale | |
| 191 angleoffset = round (angleoffset); // round to nearest 16th | |
| 192 angleoffset *= ((2 * Pi) / divisions); // convert to radians | |
| 193 angleoffset *= renderer()->depthNegateFactor(); // negate based on camera | |
| 194 return angleoffset; | |
| 195 } | |
| 196 | |
| 197 void CircleMode::render (QPainter& painter) const | |
| 198 { | |
| 199 QFontMetrics metrics = QFontMetrics (QFont()); | |
| 200 | |
| 201 // If we have not specified the center point of the circle yet, preview it on the screen. | |
| 202 if (m_drawedVerts.isEmpty()) | |
| 203 { | |
| 204 renderer()->drawBlip (painter, renderer()->coordconv3_2 (renderer()->position3D())); | |
| 205 return; | |
| 206 } | |
| 207 | |
| 208 QVector<Vertex> innerverts, outerverts; | |
| 209 QVector<QPointF> innerverts2d, outerverts2d; | |
| 210 const double innerdistance (getCircleDrawDist (0)); | |
| 211 const double outerdistance (m_drawedVerts.size() >= 2 ? getCircleDrawDist (1) : -1); | |
| 212 const int divisions (g_win->ringToolHiRes() ? HighResolution : LowResolution); | |
| 213 const int segments (g_win->ringToolSegments()); | |
| 214 const double angleUnit (2 * Pi / divisions); | |
| 215 Axis relX, relY; | |
| 216 renderer()->getRelativeAxes (relX, relY); | |
| 217 const double angleoffset (m_drawedVerts.size() < 3 ? getAngleOffset() : m_angleOffset); | |
| 218 | |
| 219 // Calculate the preview positions of vertices | |
| 220 for (int i = 0; i < segments + 1; ++i) | |
| 221 { | |
| 222 const double sinangle (sin (angleoffset + i * angleUnit)); | |
| 223 const double cosangle (cos (angleoffset + i * angleUnit)); | |
| 224 Vertex v (Origin); | |
| 225 v.setCoordinate (relX, m_drawedVerts[0][relX] + (cosangle * innerdistance)); | |
| 226 v.setCoordinate (relY, m_drawedVerts[0][relY] + (sinangle * innerdistance)); | |
| 227 innerverts << v; | |
| 228 innerverts2d << renderer()->coordconv3_2 (v); | |
| 229 | |
| 230 if (outerdistance != -1) | |
| 231 { | |
| 232 v.setCoordinate (relX, m_drawedVerts[0][relX] + (cosangle * outerdistance)); | |
| 233 v.setCoordinate (relY, m_drawedVerts[0][relY] + (sinangle * outerdistance)); | |
| 234 outerverts << v; | |
| 235 outerverts2d << renderer()->coordconv3_2 (v); | |
| 236 } | |
| 237 } | |
| 238 | |
| 239 QVector<QLineF> lines (segments); | |
| 240 | |
| 241 if (outerdistance != -1 and outerdistance != innerdistance) | |
| 242 { | |
| 243 painter.setBrush (m_polybrush); | |
| 244 painter.setPen (Qt::NoPen); | |
| 245 | |
| 246 // Compile polygons | |
| 247 for (int i = 0; i < segments; ++i) | |
| 248 { | |
| 249 QVector<QPointF> points; | |
| 250 points << innerverts2d[i] | |
| 251 << innerverts2d[i + 1] | |
| 252 << outerverts2d[i + 1] | |
| 253 << outerverts2d[i]; | |
| 254 painter.drawPolygon (QPolygonF (points)); | |
| 255 lines << QLineF (innerverts2d[i], innerverts2d[i + 1]); | |
| 256 lines << QLineF (outerverts2d[i], outerverts2d[i + 1]); | |
| 257 } | |
| 258 | |
| 259 // Add bordering edges for unclosed rings/discs | |
| 260 if (segments != divisions) | |
| 261 { | |
| 262 lines << QLineF (innerverts2d.first(), outerverts2d.first()); | |
| 263 lines << QLineF (innerverts2d.last(), outerverts2d.last()); | |
| 264 } | |
| 265 } | |
| 266 else | |
| 267 { | |
| 268 for (int i = 0; i < segments; ++i) | |
| 269 lines << QLineF (innerverts2d[i], innerverts2d[i + 1]); | |
| 270 } | |
| 271 | |
| 272 // Draw a green blips at where the points are | |
| 273 for (QPointF const& point : innerverts2d + outerverts2d) | |
| 274 renderer()->drawBlip (painter, point); | |
| 275 | |
| 276 // Draw edge lines | |
| 277 painter.setPen (renderer()->linePen()); | |
| 278 painter.drawLines (lines); | |
| 279 | |
| 280 // Draw the current radius in the middle of the circle. | |
| 281 QPoint origin = renderer()->coordconv3_2 (m_drawedVerts[0]); | |
| 282 QString label = QString::number (innerdistance); | |
| 283 painter.setPen (renderer()->textPen()); | |
| 284 painter.drawText (origin.x() - (metrics.width (label) / 2), origin.y(), label); | |
| 285 | |
| 286 if (m_drawedVerts.size() >= 2) | |
| 287 { | |
| 288 painter.drawText (origin.x() - (metrics.width (label) / 2), | |
| 289 origin.y() + metrics.height(), QString::number (outerdistance)); | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 bool CircleMode::mouseReleased (MouseEventData const& data) | |
| 294 { | |
| 295 if (Super::mouseReleased (data)) | |
| 296 return true; | |
| 297 | |
| 298 if (data.releasedButtons & Qt::LeftButton) | |
| 299 { | |
| 300 if (m_drawedVerts.size() < 3) | |
| 301 addDrawnVertex (renderer()->position3D()); | |
| 302 else | |
| 303 buildCircle(); | |
| 304 | |
| 305 return true; | |
| 306 } | |
| 307 | |
| 308 return false; | |
| 309 } | |
| 310 | |
| 311 bool CircleMode::preAddVertex (const Vertex&) | |
| 312 { | |
| 313 m_angleOffset = getAngleOffset(); | |
| 314 return false; | |
| 315 } |
