void
Panned::drawForeground(QPainter *paint, const QRectF &)
{
Profiler profiler("Panned::drawForeground");
QPointF near = mapToScene(0, 0);
QPointF far = mapToScene(width(), height());
QSizeF sz(far.x()-near.x(), far.y()-near.y());
QRectF pr(near, sz);
// RG_DEBUG << "Panned::drawForeground: pr = " << pr << endl;
if (pr != m_pannedRect) {
if (pr.x() != m_pannedRect.x()) emit pannedContentsScrolled();
m_pannedRect = pr;
emit pannedRectChanged(pr);
}
if (m_pointerVisible && scene()) {
QPoint top = mapFromScene(m_pointerTop);
float height = m_pointerHeight;
if (height == 0.f) height = scene()->height();
QPoint bottom = mapFromScene
(m_pointerTop + QPointF(0, height));
paint->save();
paint->setWorldMatrix(QMatrix());
paint->setPen(QPen(GUIPalette::getColour(GUIPalette::Pointer), 2));
paint->drawLine(top, bottom);
paint->restore();
}
}
void
Panner::moveTo(QPoint p)
{
QPointF sp = mapToScene(p);
QRectF nr = m_pannedRect;
double d = sp.x() - nr.center().x();
nr.translate(d, 0);
slotSetPannedRect(nr);
emit pannedRectChanged(m_pannedRect);
viewport()->update();
}
void
Panner::mouseMoveEvent(QMouseEvent *e)
{
if (!m_clicked) return;
QPointF cp = mapToScene(m_clickedPoint);
QPointF mp = mapToScene(e->pos());
QPointF delta = mp - cp;
QRectF nr = m_clickedRect;
nr.translate(delta);
slotSetPannedRect(nr);
emit pannedRectChanged(m_pannedRect);
viewport()->update();
}
void
Panned::resizeEvent(QResizeEvent *ev)
{
QPointF near = mapToScene(0, 0);
QPointF far = mapToScene(width(), height());
QSizeF sz(far.x()-near.x(), far.y()-near.y());
QRectF pr(near, sz);
RG_DEBUG << "Panned::resizeEvent: pr = " << pr << endl;
if (pr != m_pannedRect) {
m_pannedRect = pr;
emit pannedRectChanged(pr);
}
QGraphicsView::resizeEvent(ev);
}
