OverlayItemInternal* OverlayView::getClickedItem(const WFAPI::ScreenPoint& p)
{
StackedSet::StackVec& stackedItems = m_stackSet.getStackedItems();
OverlayItemInternal* highlightedItem=NULL;
//first check if there is a highlighted item visible
for( StackedSet::StackVec::reverse_iterator itr = stackedItems.rbegin();
itr != stackedItems.rend(); itr++ )
{
OverlayItemInternal* curItem = *itr;
if(curItem->m_isHighlighted) {
highlightedItem=curItem;
break;
}
}
if(highlightedItem) {
MC2Point screenPoint;
m_projection.transform(screenPoint, highlightedItem->getPosition());
WFAPI::wf_uint32 pixScale =
static_cast<WFAPI::wf_uint32>(m_projection.getPixelScale());
const WFAPI::OverlayItemVisualSpec* visualSpec =
OverlayItemUtil::getCurrentVisualSpec(highlightedItem, pixScale);
const WFAPI::ImageSpec* background = visualSpec->getBackgroundImage();
WFAPI::ScreenPoint offsetPoint = visualSpec->getFocusPoint();
unsigned int width = background->getWidth();
unsigned int height = background->getHeight();
// Create our offset box
PixelBox box( MC2Point(-offsetPoint.getX(), -offsetPoint.getY()),
MC2Point(-offsetPoint.getX() + width,
-offsetPoint.getY() + height));
//Offset the box to the correct position on the screen
box.move(screenPoint);
//now check if we clicked the highlighted item
if(box.pointInside(p)) {
return highlightedItem;
}
}
//if we got this far we clicked a non-highlighted item
for( StackedSet::StackVec::reverse_iterator itr = stackedItems.rbegin();
itr != stackedItems.rend(); itr++ )
{
OverlayItemInternal* curItem = *itr;
//skip highlighted item
if(curItem == highlightedItem) {
continue;
}
PixelBox box = curItem->getPixelBox();
//check if we clicked an item that is not the currently highlighted item
if(box.pointInside(p)) {
return curItem;
}
}
return NULL;
}
