//-----------------------------------------------------------------------------
// Function: itemTotalRect()
//-----------------------------------------------------------------------------
QRectF VisualizerItem::itemTotalRect() const
{
// the rectangle that contains this item
QRectF totalRect(rect());
// if there are children
QList<QGraphicsItem*> children = childItems();
foreach (QGraphicsItem* child, children)
{
// the rectangle must contain this item and also the child item
VisualizerItem* childItem = dynamic_cast<VisualizerItem*>(child);
if (childItem && childItem->isVisible())
{
totalRect = totalRect.united(mapRectFromItem(child, childItem->itemTotalRect()));
}
}
void CGUIPanel::resizeInnerPane()
{
if (!HScrollBar || !VScrollBar || !InnerPane || !ClipPane)
return;
s32 newHPos = HScrollBar->getPos();
s32 newVPos = VScrollBar->getPos();
// get outer pane size
core::rect<s32> outerRect = ClipPane->getRelativePosition();
// resize flexible children depending on outer pane
InnerPane->setRelativePosition(outerRect);
// get desired size (total size of all children)
core::rect<s32> totalRect(0,0,0,0);
core::list<IGUIElement*>::ConstIterator it;
for ( it = InnerPane->getChildren().begin();
it != InnerPane->getChildren().end(); ++it )
{
core::rect<s32> rct = (*it)->getRelativePosition();
totalRect.addInternalPoint(rct.UpperLeftCorner);
totalRect.addInternalPoint(rct.LowerRightCorner);
}
// move children if pane needs to grow
core::position2di adjustedMovement(0,0);
if (totalRect.UpperLeftCorner.X < 0)
adjustedMovement.X = -totalRect.UpperLeftCorner.X;
if (totalRect.UpperLeftCorner.Y < 0)
adjustedMovement.Y = -totalRect.UpperLeftCorner.Y;
if (adjustedMovement.X > 0 || adjustedMovement.Y > 0)
{
totalRect += adjustedMovement;
for (it = InnerPane->getChildren().begin();
it != InnerPane->getChildren().end(); ++it )
{
(*it)->move(adjustedMovement);
}
}
// make sure the inner pane is at least as big as the outer
if (totalRect.getWidth() < outerRect.getWidth())
{
totalRect.UpperLeftCorner.X = 0;
totalRect.LowerRightCorner.X = outerRect.getWidth();
}
if (totalRect.getHeight() < outerRect.getHeight())
{
totalRect.UpperLeftCorner.Y = 0;
totalRect.LowerRightCorner.Y = outerRect.getHeight();
}
InnerPane->setRelativePosition(totalRect);
// scrollbars
if ( HScrollBarMode != ESBM_ALWAYS_INVISIBLE &&
(totalRect.getWidth() > outerRect.getWidth() || HScrollBarMode == ESBM_ALWAYS_VISIBLE) )
{
HScrollBar->setVisible(true);
HScrollBar->setMax(totalRect.getWidth() - outerRect.getWidth());
}
else
HScrollBar->setVisible(false);
if ( VScrollBarMode != ESBM_ALWAYS_INVISIBLE &&
(totalRect.getHeight() > outerRect.getHeight() || VScrollBarMode == ESBM_ALWAYS_VISIBLE) )
{
VScrollBar->setVisible(true);
VScrollBar->setMax(totalRect.getHeight() - outerRect.getHeight());
}
else
VScrollBar->setVisible(false);
// move to adjust for scrollbar pos
moveInnerPane();
}
