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plugins/assistants/Assistants/VanishingPointAssistant.cc
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| 177 | } | 177 | } | ||
|---|---|---|---|---|---|
| 178 | 178 | | |||
| 179 | 179 | | |||
| 180 | gc.restore(); | 180 | // draw references guide for vanishing points at specified density | ||
| 181 | // this is shown as part of the preview, so don't show if preview is off | ||||
| 182 | if( canvas->paintingAssistantsDecoration()->outlineVisibility() && this->isSnappingActive() ) { | ||||
| 181 | 183 | | |||
| 182 | KisPaintingAssistant::drawAssistant(gc, updateRect, converter, cached, canvas, assistantVisible, previewVisible); | 184 | // cycle through degrees from 0 to 180. We are doing an infinite line, so we don't need to go 360 | ||
| 185 | QTransform initialTransform = converter->documentToWidgetTransform(); | ||||
| 186 | QPointF p0 = initialTransform.map(*handles()[0]); // main vanishing point | ||||
| 183 | 187 | | |||
| 188 | for (int currentAngle=0; currentAngle <= 180; currentAngle = currentAngle + m_referenceLineDensity ) { | ||||
| 189 | | ||||
| 190 | // determine the correct angle based on the iteration | ||||
| 191 | float xPos = cos(currentAngle * M_PI / 180); | ||||
| 192 | float yPos = sin(currentAngle * M_PI / 180); | ||||
| 193 | QPointF unitAngle; | ||||
| 194 | unitAngle.setX(p0.x() + xPos); | ||||
| 195 | unitAngle.setY(p0.y() + yPos); | ||||
| 196 | | ||||
| 197 | // find point | ||||
| 198 | QLineF snapLine= QLineF(p0, unitAngle); | ||||
| 199 | QRect viewport= gc.viewport(); | ||||
| 200 | KisAlgebra2D::intersectLineRect(snapLine, viewport); | ||||
| 201 | | ||||
| 202 | // make a line from VP center to edge of canvas with that angle | ||||
| 203 | QPainterPath path; | ||||
| 204 | path.moveTo(snapLine.p1()); | ||||
| 205 | path.lineTo(snapLine.p2()); | ||||
| 206 | drawPreview(gc, path);//and we draw the preview. | ||||
| 207 | } | ||||
| 208 | } | ||||
| 184 | 209 | | |||
| 185 | 210 | | |||
| 211 | gc.restore(); | ||||
| 212 | | ||||
| 213 | KisPaintingAssistant::drawAssistant(gc, updateRect, converter, cached, canvas, assistantVisible, previewVisible); | ||||
| 186 | } | 214 | } | ||
| 187 | 215 | | |||
| 188 | void VanishingPointAssistant::drawCache(QPainter& gc, const KisCoordinatesConverter *converter, bool assistantVisible) | 216 | void VanishingPointAssistant::drawCache(QPainter& gc, const KisCoordinatesConverter *converter, bool assistantVisible) | ||
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| 215 | return (*handles()[0]); | 243 | return (*handles()[0]); | ||
| 216 | } | 244 | } | ||
| 217 | 245 | | |||
| 246 | void VanishingPointAssistant::setCustomPropertyFloat(QString propertyName, float value) | ||||
| 247 | { | ||||
| 248 | if (propertyName == "angleDensity") { | ||||
| 249 | // cannot have less than a 1 degree | ||||
| 250 | if (value < 1.0) { | ||||
| 251 | value = 1.0; | ||||
| 252 | } | ||||
| 253 | | ||||
| 254 | m_referenceLineDensity = value; | ||||
| 255 | } | ||||
| 256 | | ||||
| 257 | KisPaintingAssistant::setCustomPropertyFloat(propertyName, value); | ||||
| 258 | } | ||||
| 259 | | ||||
| 218 | bool VanishingPointAssistant::isAssistantComplete() const | 260 | bool VanishingPointAssistant::isAssistantComplete() const | ||
| 219 | { | 261 | { | ||
| 220 | return handles().size() > 0; // only need one point to be ready | 262 | return handles().size() > 0; // only need one point to be ready | ||
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