WgHook * WgStackPanel::_firstHookWithGeo( WgRect& writeGeo ) const
{
WgStackHook * p = _firstHook();
if( p )
writeGeo = p->_getGeo(m_size);
return p;
}
Widget * Container::_firstWidget() const
{
Hook * p = _firstHook();
if( p )
return p->_widget();
else
return 0;
}
void WgStackPanel::_adaptChildrenToSize()
{
WgStackHook * pHook = _firstHook();
while( pHook )
{
pHook->_widget()->_onNewSize( pHook->_getGeo(m_size) );
pHook = pHook->_next();
}
}
int WgStackPanel::MatchingWidth( int height ) const
{
int width = 0;
WgStackHook * pHook = _firstHook();
while( pHook )
{
int w = pHook->_widget()->MatchingWidth(height);
if( w > width )
width = w;
pHook = pHook->_next();
}
return width;
}
int WgStackPanel::MatchingHeight( int width ) const
{
int height = 0;
WgStackHook * pHook = _firstHook();
while( pHook )
{
int h = pHook->_widget()->MatchingHeight(width);
if( h > height )
height = h;
pHook = pHook->_next();
}
return height;
}
void WgStackPanel::_onWidgetDisappeared( WgVectorHook * _pToBeRemoved )
{
bool bRequestResize = false;
WgStackHook * pToBeRemoved = (WgStackHook*) _pToBeRemoved;
// Get dirty rectangles for all visible sections of pToBeRemoved.
_onRenderRequested( pToBeRemoved );
// Update m_preferredSize, skiping pToBeRemoved
WgSize preferredSize;
WgStackHook * pHook = _firstHook();
while( pHook )
{
if( pHook != pToBeRemoved )
{
WgSize sz = pHook->_widget()->PreferredSize();
if( sz.w > preferredSize.w )
preferredSize.w = sz.w;
if( sz.h > preferredSize.h )
preferredSize.h = sz.h;
}
pHook = pHook->_next();
}
if( preferredSize != m_preferredSize )
bRequestResize = true;
m_preferredSize = preferredSize;
// Check if removal might affect height for current width
int height = pToBeRemoved->_widget()->MatchingHeight(m_size.w);
if( height >= m_size.h )
bRequestResize = true;
//
if( bRequestResize )
_requestResize();
}
void WgStackPanel::_refreshPreferredSize()
{
WgSize preferredSize;
WgStackHook * pHook = _firstHook();
while( pHook )
{
WgSize sz = pHook->_paddedPreferredSize();
if( sz.w > preferredSize.w )
preferredSize.w = sz.w;
if( sz.h > preferredSize.h )
preferredSize.h = sz.h;
pHook = pHook->_next();
}
if( m_preferredSize != preferredSize)
{
m_preferredSize = preferredSize;
_requestResize();
}
}
