ui: Show call graphs, inheritance trees and include trees for active symbol (issue 249 337)

* 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.
2017-04-24 01:14:53 +02:00
parent 01bd0efefb
commit f0b7dcdcdd
40 changed files with 1892 additions and 487 deletions
@@ -0,0 +1,143 @@
+#include "qt/graphics/QtLineItemBezier.h"
+
+#include <QPainter>
+
+QtLineItemBezier::QtLineItemBezier(QGraphicsItem* parent)
+	: QtLineItemBase(parent)
+{
+}
+
+QtLineItemBezier::~QtLineItemBezier()
+{
+}
+
+QPainterPath QtLineItemBezier::shape() const
+{
+	QPainterPathStroker stroker;
+	stroker.setWidth(10);
+	stroker.setJoinStyle(Qt::MiterJoin);
+
+	QPainterPath path = stroker.createStroke(getCurve());
+	if (m_showArrow)
+	{
+		path.addRect(getArrowBoundingRect(QtLineItemBase::getPath()).adjusted(-3, -3, 3, 3));
+	}
+	return path;
+}
+
+void QtLineItemBezier::paint(QPainter* painter, const QStyleOptionGraphicsItem* options, QWidget* widget)
+{
+	QPainterPath path = getCurve();
+
+	if (m_showArrow)
+	{
+		drawArrow(QtLineItemBase::getPath(), &path);
+	}
+
+	painter->setPen(pen());
+	painter->drawPath(path);
+}
+
+QPolygon QtLineItemBezier::getPath() const
+{
+	QPolygon poly = QtLineItemBase::getPath();
+	QPolygon newPoly;
+
+	QPoint tip = poly.at(0);
+
+	if (m_showArrow && m_style.arrowClosed)
+	{
+		int dir = getDirection(poly.at(1), poly.at(0));
+
+		switch (dir)
+		{
+		case 0:
+			tip.ry() += m_style.arrowLength;
+			break;
+		case 1:
+			tip.rx() -= m_style.arrowLength;
+			break;
+		case 2:
+			tip.ry() -= m_style.arrowLength;
+			break;
+		case 3:
+			tip.rx() += m_style.arrowLength;
+			break;
+		}
+	}
+
+	newPoly << tip;
+
+	QRect rect(poly.at(0), poly.at(3));
+
+	if (!rect.contains(poly.at(1)))
+	{
+		if (m_route == ROUTE_HORIZONTAL)
+		{
+			int diff;
+			if (std::abs(poly.at(1).x() - poly.at(0).x()) < std::abs(poly.at(2).x() - poly.at(3).x()))
+			{
+				diff = poly.at(1).x() - poly.at(0).x();
+			}
+			else
+			{
+				diff = poly.at(2).x() - poly.at(3).x();
+			}
+
+			newPoly << QPoint(poly.at(1).x() + diff, poly.at(1).y());
+			newPoly << QPoint(poly.at(2).x() + diff, poly.at(2).y());
+		}
+		else
+		{
+			int diff;
+			if (std::abs(poly.at(1).y() - poly.at(0).y()) < std::abs(poly.at(2).y() - poly.at(3).y()))
+			{
+				diff = poly.at(1).y() - poly.at(0).y();
+			}
+			else
+			{
+				diff = poly.at(2).y() - poly.at(3).y();
+			}
+
+			newPoly << QPoint(poly.at(1).x(), poly.at(1).y() + diff);
+			newPoly << QPoint(poly.at(2).x(), poly.at(2).y() + diff);
+		}
+	}
+	else
+	{
+		if (m_route == ROUTE_HORIZONTAL)
+		{
+			newPoly << QPoint((poly.at(3).x() + poly.at(0).x()) / 2, poly.at(0).y());
+			newPoly << QPoint((poly.at(3).x() + poly.at(0).x()) / 2, poly.at(3).y());
+		}
+		else
+		{
+			newPoly << QPoint(poly.at(0).x(), (poly.at(3).y() + poly.at(0).y()) / 2);
+			newPoly << QPoint(poly.at(3).x(), (poly.at(3).y() + poly.at(0).y()) / 2);
+		}
+	}
+
+	newPoly << poly.at(3);
+	return newPoly;
+}
+
+QPainterPath QtLineItemBezier::getCurve() const
+{
+	QPolygon poly = getPath();
+
+	QPainterPath path;
+	path.moveTo(poly.at(3));
+	path.cubicTo(
+		poly.at(2),
+		poly.at(1),
+		poly.at(0)
+	);
+
+	// QPainterPath path;
+	// path.moveTo(poly.at(3));
+	// path.lineTo(poly.at(2));
+	// path.lineTo(poly.at(1));
+	// path.lineTo(poly.at(0));
+
+	return path;
+}