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Added graph highlighting on track select

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This commit is contained in:
Martin Tůma 2016-09-22 20:59:13 +02:00
parent 19c44f56d6
commit 7e365cb990
5 changed files with 36 additions and 3 deletions
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30
src/graphitem.cpp
View File

@ -2,6 +2,9 @@
#include "graphitem.h"
#define GRAPH_WIDTH 1
#define HOVER_WIDTH 2
static qreal yAtX(const QPainterPath &path, qreal x)
{
int low = 0;
@ -46,9 +49,11 @@ GraphItem::GraphItem(const Graph &graph, QGraphicsItem *parent)
: QGraphicsObject(parent)
{
_id = 0;
_pen = QPen(QBrush(Qt::SolidPattern), 0);
_type = Distance;
_pen.setWidth(GRAPH_WIDTH);
_pen.setCosmetic(true);
_distancePath.moveTo(graph.first().s(), -graph.first().y());
for (int i = 1; i < graph.size(); i++)
_distancePath.lineTo(graph.at(i).s(), -graph.at(i).y());
@ -68,12 +73,18 @@ void GraphItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
painter->setPen(_pen);
painter->drawPath((_type == Distance) ? _distancePath : _timePath);
/*
QPen p = QPen(QBrush(Qt::red), 0);
painter->setPen(p);
painter->drawRect(boundingRect());
*/
}
void GraphItem::setColor(const QColor &color)
{
QBrush brush(color, Qt::SolidPattern);
_pen.setBrush(brush);
_pen.setColor(color);
update();
}
qreal GraphItem::yAtX(qreal x)
@ -125,3 +136,16 @@ void GraphItem::emitSliderPositionChanged(qreal pos)
} else
emit sliderPositionChanged(pos);
}
void GraphItem::selected(bool selected)
{
if (selected) {
_pen.setWidth(HOVER_WIDTH);
setZValue(zValue() + 1.0);
} else {
_pen.setWidth(GRAPH_WIDTH);
setZValue(zValue() - 1.0);
}
update();
}

1
src/graphitem.h
View File

@ -31,6 +31,7 @@ signals:
public slots:
void emitSliderPositionChanged(qreal);
void selected(bool selected);
private:
int _id;

1
src/graphview.cpp
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@ -178,6 +178,7 @@ void GraphView::loadGraph(const Graph &graph, PathItem *path, int id)
SLOT(emitSliderPositionChanged(qreal)));
connect(gi, SIGNAL(sliderPositionChanged(qreal)), path,
SLOT(moveMarker(qreal)));
connect(path, SIGNAL(selected(bool)), gi, SLOT(selected(bool)));
_graphs.append(gi);

3
src/pathitem.h
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@ -14,6 +14,9 @@ public:
public slots:
virtual void moveMarker(qreal distance) = 0;
signals:
void selected(bool);
};
#endif // PATHITEM_H

4
src/trackitem.cpp
View File

@ -124,6 +124,8 @@ void TrackItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
_pen.setWidthF(HOVER_WIDTH * 1.0/scale());
setZValue(zValue() + 1.0);
update();
emit selected(true);
}
void TrackItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
@ -133,4 +135,6 @@ void TrackItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
_pen.setWidthF(TRACK_WIDTH * 1.0/scale());
setZValue(zValue() - 1.0);
update();
emit selected(false);
}