//-----------------------------------------------------------------------------
// Purpose: Calculates which panel the cursor is currently over and sets it up
// as the current mouse focus.
//-----------------------------------------------------------------------------
void CInputWin32::UpdateMouseFocus(int x, int y)
{
// find the panel that has the focus
VPanel *focus = NULL;
InputContext_t *pContext = GetInputContext( m_hContext );
if (!pContext->_rootPanel)
{
if (surface()->IsCursorVisible() && surface()->IsWithin(x, y))
{
// faster version of code below
// checks through each popup in order, top to bottom windows
for (int i = surface()->GetPopupCount() - 1; i >= 0; i--)
{
VPanel *popup = (VPanel *)surface()->GetPopup(i);
VPanel *panel = popup;
bool wantsMouse = panel->IsMouseInputEnabled();
bool isVisible;
do
{
isVisible = panel->IsVisible();
panel = panel->GetParent();
}
while ( isVisible && panel && panel->GetParent() ); // only consider panels that want mouse input
if ( wantsMouse && isVisible )
{
focus = (VPanel *)popup->Client()->IsWithinTraverse(x, y, false);
if (focus)
break;
}
}
if (!focus)
{
focus = (VPanel *)((VPanel *)surface()->GetEmbeddedPanel())->Client()->IsWithinTraverse(x, y, false);
}
}
}
else
{
focus = (VPanel *)((VPanel *)(pContext->_rootPanel))->Client()->IsWithinTraverse(x, y, false);
}
// mouse focus debugging code
/*
static VPanel *oldFocus = (VPanel *)0x0001;
if (oldFocus != focus)
{
oldFocus = focus;
if (focus)
{
ivgui()->DPrintf2("mouse over: (%s, %s)\n", focus->GetName(), focus->GetClassName());
}
else
{
ivgui()->DPrintf2("mouse over: (NULL)\n");
}
}
*/
// check if we are in modal state,
// and if we are make sure this panel is a child of us.
if (!IsChildOfModalPanel((VPANEL)focus))
{
// should this be _appModalPanel?
focus = NULL;
}
SetMouseFocus((VPANEL)focus);
}
//-----------------------------------------------------------------------------
// Purpose: Sets the new mouse focus
// won't override _mouseCapture settings
// Input : newMouseFocus -
//-----------------------------------------------------------------------------
void CInputWin32::SetMouseFocus(VPANEL newMouseFocus)
{
// check if we are in modal state,
// and if we are make sure this panel is a child of us.
if (!IsChildOfModalPanel(newMouseFocus))
{
return;
}
bool wantsMouse, isPopup; // = popup->GetMouseInput();
VPanel *panel = (VPanel *)newMouseFocus;
InputContext_t *pContext = GetInputContext( m_hContext );
if ( newMouseFocus )
{
do
{
wantsMouse = panel->IsMouseInputEnabled();
isPopup = panel->IsPopup();
panel = panel->GetParent();
}
while ( wantsMouse && !isPopup && panel && panel->GetParent() ); // only consider panels that want mouse input
}
// if this panel doesn't want mouse input don't let it get focus
if (newMouseFocus && !wantsMouse)
{
return;
}
if ((VPANEL)pContext->_mouseOver != newMouseFocus || (!pContext->_mouseCapture && (VPANEL)pContext->_mouseFocus != newMouseFocus) )
{
pContext->_oldMouseFocus = pContext->_mouseOver;
pContext->_mouseOver = (VPanel *)newMouseFocus;
//tell the old panel with the mouseFocus that the cursor exited
if (pContext->_oldMouseFocus != NULL)
{
// only notify of entry if the mouse is not captured or we're a child of the captured panel
if ( !pContext->_mouseCapture || pContext->_oldMouseFocus->HasParent(pContext->_mouseCapture) )
{
ivgui()->PostMessage((VPANEL)pContext->_oldMouseFocus, new KeyValues("CursorExited"), NULL);
}
}
//tell the new panel with the mouseFocus that the cursor entered
if (pContext->_mouseOver != NULL)
{
// only notify of entry if the mouse is not captured or we're a child of the captured panel
if ( !pContext->_mouseCapture || pContext->_mouseOver->HasParent(pContext->_mouseCapture) )
{
ivgui()->PostMessage((VPANEL)pContext->_mouseOver, new KeyValues("CursorEntered"), NULL);
}
}
// set where the mouse is currently over
// mouse capture overrides destination
if ( pContext->_mouseCapture )
{
pContext->_mouseFocus = pContext->_mouseCapture;
}
else
{
pContext->_mouseFocus = pContext->_mouseOver;
}
}
}