Changeset - 4539c1ce7a85
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Hasan Yavuz Ă–ZDERYA - 9 years ago 2017-04-23 05:31:22
hy@ozderya.net
show closed hand cursor when panning
1 file changed with 2 insertions and 0 deletions:
0 comments (0 inline, 0 general)
src/zoomer.cpp
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@@ -84,58 +84,60 @@ void Zoomer::drawRubberBand(QPainter* pa
 

	
 
    QColor color = painter->pen().color();
 
    color.setAlphaF(FILL_ALPHA);
 
    painter->setBrush(color);
 

	
 
    ScrollZoomer::drawRubberBand(painter);
 
}
 

	
 
QRegion Zoomer::rubberBandMask() const
 
{
 
    const QPolygon pa = selection();
 
    if (pa.count() < 2)
 
    {
 
        return QRegion();
 
    }
 
    const QRect r = QRect(pa.first(), pa.last()).normalized().adjusted(0, 0, 1, 1);
 
    return QRegion(r);
 
}
 

	
 
void Zoomer::widgetMousePressEvent(QMouseEvent* mouseEvent)
 
{
 
    if (mouseEvent->modifiers() & Qt::ControlModifier)
 
    {
 
        is_panning = true;
 
        parentWidget()->setCursor(Qt::ClosedHandCursor);
 
        pan_point = invTransform(mouseEvent->pos());
 
    }
 
    else
 
    {
 
        ScrollZoomer::widgetMousePressEvent(mouseEvent);
 
    }
 
}
 

	
 
void Zoomer::widgetMouseMoveEvent(QMouseEvent* mouseEvent)
 
{
 
    if (is_panning)
 
    {
 
        auto cur_point = invTransform(mouseEvent->pos());
 
        auto delta = cur_point - pan_point;
 
        moveBy(-delta.x(), -delta.y());
 
        pan_point = invTransform(mouseEvent->pos());
 
    }
 
    else
 
    {
 
        ScrollZoomer::widgetMouseMoveEvent(mouseEvent);
 
    }
 
}
 

	
 
void Zoomer::widgetMouseReleaseEvent(QMouseEvent* mouseEvent)
 
{
 
    if (is_panning)
 
    {
 
        is_panning = false;
 
        parentWidget()->setCursor(Qt::CrossCursor);
 
    }
 
    else
 
    {
 
        ScrollZoomer::widgetMouseReleaseEvent(mouseEvent);
 
    }
 
}
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