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102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/*
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* ShapeControlPainter.cpp
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*
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* (c) 2013 Sofian Audry -- info(@)sofianaudry(.)com
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* (c) 2013 Alexandre Quessy -- alexandre(@)quessy(.)net
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ShapeControlPainter.h"
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ShapeControlPainter::ShapeControlPainter(ShapeGraphicsItem* shapeItem)
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: _shapeItem(shapeItem)
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{}
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MShape::ptr ShapeControlPainter::getShape() const { return _shapeItem->getShape(); }
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void ShapeControlPainter::paint(QPainter *painter, MapperGLCanvas* canvas, const QList<int>& selectedVertices)
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{
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_paintShape(painter, canvas);
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_paintVertices(painter, canvas, selectedVertices);
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}
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void ShapeControlPainter::_paintVertices(QPainter *painter, MapperGLCanvas* canvas, const QList<int>& selectedVertices)
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{
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qreal zoomFactor = canvas->getZoomFactor();
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qreal selectRadius = MM::VERTEX_SELECT_RADIUS / zoomFactor;
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qreal strokeWidth = MM::VERTEX_SELECT_STROKE_WIDTH / zoomFactor;
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for (int i=0; i<getShape()->nVertices(); i++)
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Util::drawControlsVertex(painter, getShape()->getVertex(i), selectedVertices.contains(i), selectRadius, strokeWidth);
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}
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QPen ShapeControlPainter::getRescaledShapeStroke(MapperGLCanvas* canvas, bool innerStroke)
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{
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return QPen(QBrush(MM::CONTROL_COLOR), (innerStroke ? MM::SHAPE_INNER_STROKE_WIDTH : MM::SHAPE_STROKE_WIDTH) / canvas->getZoomFactor());
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}
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void PolygonControlPainter::_paintShape(QPainter *painter, MapperGLCanvas* canvas)
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{
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Polygon* poly = static_cast<Polygon*>(getShape().data());
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Q_ASSERT(poly);
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// Init colors and stroke.
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painter->setPen(getRescaledShapeStroke(canvas));
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// Draw inner quads.
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painter->drawPolygon(poly->toPolygon());
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}
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void EllipseControlPainter::_paintShape(QPainter *painter, MapperGLCanvas* canvas)
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{
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Ellipse* ellipse = static_cast<Ellipse*>(getShape().data());
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Q_ASSERT(ellipse);
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// Init colors and stroke.
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painter->setPen(getRescaledShapeStroke(canvas));
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painter->setBrush(Qt::NoBrush);
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// Draw ellipse contour.
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QPainterPath path;
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QTransform transform;
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transform.translate(ellipse->getCenter().x(), ellipse->getCenter().y());
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transform.rotate(ellipse->getRotation());
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path.addEllipse(QPoint(0,0), ellipse->getHorizontalRadius(), ellipse->getVerticalRadius());
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painter->drawPath(transform.map(path));
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}
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void MeshControlPainter::_paintShape(QPainter *painter, MapperGLCanvas* canvas)
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{
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Mesh* mesh = static_cast<Mesh*>(getShape().data());
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Q_ASSERT(mesh);
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// Init colors and stroke.
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painter->setPen(getRescaledShapeStroke(canvas, true));
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// Draw inner quads.
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QVector<Quad::ptr> quads = mesh->getQuads();
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for (QVector<Quad::ptr>::const_iterator it = quads.begin(); it != quads.end(); ++it)
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{
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painter->drawPolygon((*it)->toPolygon());
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}
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// Draw outer quad.
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painter->setPen(getRescaledShapeStroke(canvas));
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painter->drawPolygon(_shapeItem->mapFromScene(mesh->toPolygon()));
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}
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