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Implemented the movement of the ToolTip by Hand.

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Reimplement the movement of the tooltip by hand,
we were adding / removing childs of the tooltip
quite often, wich broke the movement of the item
using the default behavior, aparently Qt uses
a cache of the transformation of the item, assuming
that the bounding box of it will not get modified
while dragging. wich in our particular case, is
a falacy.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
This commit is contained in:
Tomaz Canabrava 2013-06-10 14:48:31 -03:00
parent 34c6eec9ba
commit ad5c186553
2 changed files with 21 additions and 9 deletions
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22
qt-ui/profilegraphics.cpp
View file

@ -258,6 +258,7 @@ void ProfileGraphicsView::plot(struct dive *d, bool forceRedraw)
scene()->setSceneRect(0,0, viewport()->width()-50, viewport()->height()-50);
toolTip = new ToolTipItem();
installEventFilter(toolTip);
scene()->addItem(toolTip);
// Fix this for printing / screen later.
@ -1355,12 +1356,9 @@ ToolTipItem::ToolTipItem(QGraphicsItem* parent): QGraphicsPathItem(parent), back
{
title = new QGraphicsSimpleTextItem(tr("Information"), this);
separator = new QGraphicsLineItem(this);
dragging = false;
setFlag(ItemIgnoresTransformations);
setFlag(ItemIsMovable);
status = COLLAPSED;
updateTitlePosition();
setZValue(99);
}
@ -1407,6 +1405,12 @@ bool ToolTipItem::isExpanded() {
void ToolTipItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
{
persistPos();
dragging = false;
}
void ToolTipItem::mousePressEvent(QGraphicsSceneMouseEvent* event)
{
dragging = true;
}
void ToolTipItem::persistPos()
@ -1417,7 +1421,6 @@ void ToolTipItem::persistPos()
s.setValue("tooltip_position", currentPos);
s.endGroup();
s.sync();
qDebug() << "Salvou" << currentPos;
}
void ToolTipItem::readPos()
@ -1430,6 +1433,15 @@ void ToolTipItem::readPos()
setPos(value);
}
bool ToolTipItem::eventFilter(QObject* view, QEvent* event)
{
if (event->type() == QEvent::HoverMove && dragging){
QHoverEvent *e = static_cast<QHoverEvent*>(event);
QGraphicsView *v = scene()->views().at(0);
setPos( v->mapToScene(e->pos()));
}
return false;
}
EventItem::EventItem(QGraphicsItem* parent): QGraphicsPolygonItem(parent)
{

8
qt-ui/profilegraphics.h
View file

@ -34,11 +34,11 @@ public:
void removeToolTip(const QString& toolTip);
void refresh(struct graphics_context* gc, QPointF pos);
bool isExpanded();
void persistPos();
void readPos();
void mouseReleaseEvent(QGraphicsSceneMouseEvent* event);
void mousePressEvent(QGraphicsSceneMouseEvent* event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent* event);
bool eventFilter(QObject* , QEvent* );
public Q_SLOTS:
void setRect(const QRectF& rect);
@ -49,8 +49,8 @@ private:
QGraphicsLineItem *separator;
QGraphicsSimpleTextItem *title;
Status status;
QRectF rectangle;
bool dragging;
};
class EventItem : public QGraphicsPolygonItem