/**
* Draws a 3D cuboid by extending a 2D rectangle in the z-axis
*
* @param rect The rectangle to draw
* @param brush The brush fill the surfaces of the cuboid with
* @param pen The pen to draw the edges with
* @param props The 3D properties to use for drawing the cuboid
* @return The drawn cuboid as a polygon
*/
QPolygonF StockDiagram::Private::ThreeDPainter::drawThreeDRect( const QRectF &rect, const QBrush &brush,
const QPen &pen, const ThreeDProperties &props )
{
// Restores the painting properties when destroyed
PainterSaver painterSaver( painter );
// Make sure that the top really is the top
const QRectF normalizedRect = rect.normalized();
// Calculate all the four sides of the rectangle
const QLineF topSide = QLineF( normalizedRect.topLeft(), normalizedRect.topRight() );
const QLineF bottomSide = QLineF( normalizedRect.bottomLeft(), normalizedRect.bottomRight() );
const QLineF leftSide = QLineF( normalizedRect.topLeft(), normalizedRect.bottomLeft() );
const QLineF rightSide = QLineF( normalizedRect.topRight(), normalizedRect.bottomRight() );
QPolygonF drawnPolygon;
// Shorter names are easier on the eyes
const qreal angle = props.angle;
// Only top and right side is visible
if ( angle >= 0.0 && angle < 90.0 ) {
drawnPolygon = drawnPolygon.united( drawThreeDLine( topSide, brush, pen, props ) );
drawnPolygon = drawnPolygon.united( drawThreeDLine( rightSide, brush, pen, props ) );
// Only top and left side is visible
} else if ( angle >= 90.0 && angle < 180.0 ) {
drawnPolygon = drawnPolygon.united( drawThreeDLine( topSide, brush, pen, props ) );
drawnPolygon = drawnPolygon.united( drawThreeDLine( leftSide, brush, pen, props ) );
// Only bottom and left side is visible
} else if ( angle >= 180.0 && angle < 270.0 ) {
drawnPolygon = drawnPolygon.united( drawThreeDLine( bottomSide, brush, pen, props ) );
drawnPolygon = drawnPolygon.united( drawThreeDLine( leftSide, brush, pen, props ) );
// Only bottom and right side is visible
} else if ( angle >= 270.0 && angle <= 360.0 ) {
drawnPolygon = drawnPolygon.united( drawThreeDLine( bottomSide, brush, pen, props ) );
drawnPolygon = drawnPolygon.united( drawThreeDLine( rightSide, brush, pen, props ) );
}
// Draw the front side
painter->setPen( pen );
painter->setBrush( brush );
painter->drawRect( normalizedRect );
return drawnPolygon;
}
void Edge::calcShape() {
QPainterPath p;
auto route = mConnectionReference->displayRoute();
std::vector<QRectF> v;
for(size_t i = 0; i < route.size() - 1; ++i) {
QPointF p1(route.at(i).x, route.at(i).y);
QPointF p2(route.at(i+1).x, route.at(i+1).y);
QRectF r(p1, p2);
grow(r, 10);
v.push_back(r);
}
QPolygonF poly;
for(auto r : v) {
poly = poly.united(r);
}
p.addPolygon(poly);
p.closeSubpath();
mShape = p;
}