Widget * Container::_findWidget( const Coord& ofs, SearchMode mode )
{
Rect childGeo;
Hook * pHook = _lastHookWithGeo( childGeo );
Widget * pResult = 0;
while( pHook && !pResult )
{
if( pHook->_isVisible() && childGeo.contains( ofs ) )
{
if( pHook->_widget()->isContainer() )
{
pResult = static_cast<Container*>(pHook->_widget())->_findWidget( ofs - childGeo.pos(), mode );
}
else if( mode == SearchMode::Geometry || pHook->_widget()->markTest( ofs - childGeo.pos() ) )
{
pResult = pHook->_widget();
}
}
pHook = _prevHookWithGeo( childGeo, pHook );
}
// Check against ourselves
if( !pResult && ( mode == SearchMode::Geometry || markTest(ofs)) )
pResult = this;
return pResult;
}
void Container::_collectPatches( Patches& container, const Rect& geo, const Rect& clip )
{
if( m_pSkin )
container.add( Rect( geo, clip ) );
else
{
Rect childGeo;
Hook * p = _firstHookWithGeo( childGeo );
while(p)
{
if( p->_isVisible() )
p->_widget()->_collectPatches( container, childGeo + geo.pos(), clip );
p = _nextHookWithGeo( childGeo, p );
}
}
}
void Container::_maskPatches( Patches& patches, const Rect& geo, const Rect& clip, BlendMode blendMode )
{
//TODO: Don't just check isOpaque() globally, check rect by rect.
if( (m_bOpaque && blendMode == BlendMode::Blend) || blendMode == BlendMode::Replace)
patches.sub( Rect(geo,clip) );
else
{
Rect childGeo;
Hook * p = _firstHookWithGeo( childGeo );
while(p)
{
if( p->_isVisible() )
p->_widget()->_maskPatches( patches, childGeo + geo.pos(), clip, blendMode );
p = _nextHookWithGeo( childGeo, p );
}
}
}
void Container::_renderPatches( GfxDevice * pDevice, const Rect& _canvas, const Rect& _window, Patches * _pPatches )
{
// We start by eliminating dirt outside our geometry
Patches patches( _pPatches->size() ); // TODO: Optimize by pre-allocating?
for( const Rect * pRect = _pPatches->begin() ; pRect != _pPatches->end() ; pRect++ )
{
if( _canvas.intersectsWith( *pRect ) )
patches.push( Rect(*pRect,_canvas) );
}
// Render container itself
for( const Rect * pRect = patches.begin() ; pRect != patches.end() ; pRect++ )
_render(pDevice, _canvas, _window, *pRect );
// Render children
Rect dirtBounds = patches.getUnion();
if( m_bSiblingsOverlap )
{
// Create WidgetRenderContext's for siblings that might get dirty patches
std::vector<WidgetRenderContext> renderList;
Rect childGeo;
Hook * p = _firstHookWithGeo( childGeo );
while(p)
{
Rect geo = childGeo + _canvas.pos();
if( p->_isVisible() && geo.intersectsWith( dirtBounds ) )
renderList.push_back( WidgetRenderContext(p->_widget(), geo ) );
p = _nextHookWithGeo( childGeo, p );
}
// Go through WidgetRenderContexts in reverse order (topmost first), push and mask dirt
for( int i = renderList.size()-1 ; i >= 0 ; i-- )
{
WidgetRenderContext * p = &renderList[i];
p->patches.push( &patches );
p->pWidget->_maskPatches( patches, p->geo, p->geo, pDevice->blendMode() ); //TODO: Need some optimizations here, grandchildren can be called repeatedly! Expensive!
if( patches.isEmpty() )
break;
}
// Go through WidgetRenderContexts and render the patches
for( int i = 0 ; i < (int) renderList.size() ; i++ )
{
WidgetRenderContext * p = &renderList[i];
p->pWidget->_renderPatches( pDevice, p->geo, p->geo, &p->patches );
}
}
else
{
Rect childGeo;
Hook * p = _firstHookWithGeo( childGeo );
while(p)
{
Rect canvas = childGeo + _canvas.pos();
if( p->_isVisible() && canvas.intersectsWith( dirtBounds ) )
p->_widget()->_renderPatches( pDevice, canvas, canvas, &patches );
p = _nextHookWithGeo( childGeo, p );
}
}
}