Eberhard Graether
f0b7dcdcdd
* Added TrailLayouter with Sugiyama dependency layouting * Layouter supports horizontal and vertical layouts * Added basic ui to graph view for showing incoming and outgoing paths * Added depth slider, with infinity at maximum * Disable trail ui when not available * Added trail messages to undo stack and only use last one when undoing * Added QtGraphLineBezier for trail graphs and refactored other line types * Disabled edge activation for trail layouts, shown only visually * Highlight all connected edges when hovering a node in trail layout * Use different color when highlighting call edges for better contrast * Fixed BucketLayouter issue when edge does not leave node * Increased click area for angled edges bug id = 249 337 fortune cookie message = Answer just what the heart prompts to you.
144 lines
2.8 KiB
C++
144 lines
2.8 KiB
C++
#include "qt/graphics/QtLineItemBezier.h"
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#include <QPainter>
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QtLineItemBezier::QtLineItemBezier(QGraphicsItem* parent)
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: QtLineItemBase(parent)
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{
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}
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QtLineItemBezier::~QtLineItemBezier()
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{
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}
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QPainterPath QtLineItemBezier::shape() const
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{
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QPainterPathStroker stroker;
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stroker.setWidth(10);
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stroker.setJoinStyle(Qt::MiterJoin);
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QPainterPath path = stroker.createStroke(getCurve());
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if (m_showArrow)
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{
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path.addRect(getArrowBoundingRect(QtLineItemBase::getPath()).adjusted(-3, -3, 3, 3));
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}
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return path;
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}
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void QtLineItemBezier::paint(QPainter* painter, const QStyleOptionGraphicsItem* options, QWidget* widget)
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{
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QPainterPath path = getCurve();
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if (m_showArrow)
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{
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drawArrow(QtLineItemBase::getPath(), &path);
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}
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painter->setPen(pen());
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painter->drawPath(path);
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}
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QPolygon QtLineItemBezier::getPath() const
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{
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QPolygon poly = QtLineItemBase::getPath();
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QPolygon newPoly;
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QPoint tip = poly.at(0);
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if (m_showArrow && m_style.arrowClosed)
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{
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int dir = getDirection(poly.at(1), poly.at(0));
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switch (dir)
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{
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case 0:
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tip.ry() += m_style.arrowLength;
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break;
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case 1:
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tip.rx() -= m_style.arrowLength;
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break;
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case 2:
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tip.ry() -= m_style.arrowLength;
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break;
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case 3:
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tip.rx() += m_style.arrowLength;
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break;
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}
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}
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newPoly << tip;
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QRect rect(poly.at(0), poly.at(3));
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if (!rect.contains(poly.at(1)))
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{
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if (m_route == ROUTE_HORIZONTAL)
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{
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int diff;
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if (std::abs(poly.at(1).x() - poly.at(0).x()) < std::abs(poly.at(2).x() - poly.at(3).x()))
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{
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diff = poly.at(1).x() - poly.at(0).x();
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}
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else
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{
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diff = poly.at(2).x() - poly.at(3).x();
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}
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newPoly << QPoint(poly.at(1).x() + diff, poly.at(1).y());
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newPoly << QPoint(poly.at(2).x() + diff, poly.at(2).y());
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}
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else
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{
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int diff;
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if (std::abs(poly.at(1).y() - poly.at(0).y()) < std::abs(poly.at(2).y() - poly.at(3).y()))
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{
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diff = poly.at(1).y() - poly.at(0).y();
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}
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else
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{
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diff = poly.at(2).y() - poly.at(3).y();
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}
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newPoly << QPoint(poly.at(1).x(), poly.at(1).y() + diff);
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newPoly << QPoint(poly.at(2).x(), poly.at(2).y() + diff);
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}
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}
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else
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{
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if (m_route == ROUTE_HORIZONTAL)
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{
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newPoly << QPoint((poly.at(3).x() + poly.at(0).x()) / 2, poly.at(0).y());
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newPoly << QPoint((poly.at(3).x() + poly.at(0).x()) / 2, poly.at(3).y());
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}
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else
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{
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newPoly << QPoint(poly.at(0).x(), (poly.at(3).y() + poly.at(0).y()) / 2);
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newPoly << QPoint(poly.at(3).x(), (poly.at(3).y() + poly.at(0).y()) / 2);
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}
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}
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newPoly << poly.at(3);
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return newPoly;
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}
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QPainterPath QtLineItemBezier::getCurve() const
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{
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QPolygon poly = getPath();
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QPainterPath path;
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path.moveTo(poly.at(3));
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path.cubicTo(
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poly.at(2),
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poly.at(1),
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poly.at(0)
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);
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// QPainterPath path;
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// path.moveTo(poly.at(3));
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// path.lineTo(poly.at(2));
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// path.lineTo(poly.at(1));
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// path.lineTo(poly.at(0));
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return path;
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}
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