LRESULT WidDispatch::HandleMessage( UINT uMsg, WPARAM wParam, LPARAM lParam )
{
LRESULT lResult = 1;
Point pt(lParam);
Widget* pWid = NULL;
if (uMsg != WM_PAINT
&& uMsg != WM_TIMER
&& uMsg != WM_LBUTTONUP)
{
pWid = GetObject(m_h2oCaptured);
if (pWid != NULL)
{
lResult = pWid->SendWidMessage(uMsg, wParam, lParam);
return lResult;
}
}
ProcessMessage(uMsg, wParam, lParam, lResult, 0);
return lResult;
}
BOOL WidDispatch::ProcessMessage( UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult, DWORD dwMsgMapID )
{
Point pt(lParam);
Widget* pWid = NULL;
switch(uMsg)
{
case WM_ERASEBKGND:
return lResult;
case WM_PAINT:
{
// Handle WM_PAINT message
Rect rcPaint;
if( !::GetUpdateRect(m_hWnd, &rcPaint, FALSE) )
return 1;
PAINTSTRUCT ps;
::BeginPaint(m_hWnd, &ps);
OnPaint(ps.rcPaint);
::EndPaint(m_hWnd, &ps);
}
break;
case WM_MOUSEMOVE:
{
pWid = GetWidPt(pt);
if (pWid == NULL)
{
pWid = GetObject(m_h2oLastMouseMove);
if (pWid != NULL)
{
pWid->SendWidMessage(WM_MOUSELEAVE);
ClearH2O(m_h2oLastMouseMove);
return lResult;
}
}
else
{
HWID hWidNowMouse = pWid->GetHwid();
if (m_h2oLastMouseMove.first != hWidNowMouse)
{
Widget* pLastMouse = GetObject(m_h2oLastMouseMove);
if (pLastMouse != NULL)
{
pLastMouse->SendWidMessage(WM_MOUSELEAVE);
}
SetMouseMoveH2O(std::make_pair(hWidNowMouse, pWid));
}
lResult = pWid->SendWidMessage(WM_MOUSEMOVE, wParam, lParam);
return lResult;
}
}
break;
case WM_LBUTTONDOWN:
{
WFX_CONDITION(m_hWnd != NULL);
::SetFocus(m_hWnd);
pWid = GetWidPt(pt);
if (pWid != NULL)
{
if (pWid->GetHwid() != m_h2oFocused.first
&& pWid != m_h2oFocused.second)
{
if (m_h2oFocused.second != NULL)
{
m_h2oFocused.second->SendWidMessage(WM_KILLFOCUS, (WPARAM)pWid->GetHwid());
}
pWid->SendWidMessage(WM_SETFOCUS, (WPARAM)m_h2oFocused.first);
}
SetCapture(pWid);
SetFocus(pWid);
SetLButtonDown(pWid);
lResult = pWid->SendWidMessage(uMsg, wParam, lParam);
}
else
{
if (m_h2oFocused.second != NULL)
{
m_h2oFocused.second->SendWidMessage(WM_KILLFOCUS, INVALID_HWID);
}
}
}
break;
case WM_LBUTTONUP:
{
pWid = GetObject(m_h2oCaptured);
if (pWid == NULL)
{
pWid = GetWidPt(pt);
}
if (m_h2oCaptured.first != INVALID_HWID)
{
ReleaseCapture();
ClearH2O(m_h2oCaptured);
}
if (pWid != NULL)
{
lResult = pWid->SendWidMessage(uMsg, wParam, lParam);
Widget* pLastMM = GetObject(m_h2oLastMouseMove);
if (pLastMM != NULL)
{
pLastMM->SendWidMessage(WM_MOUSELEAVE);
}
ClearH2O(m_h2oLastMouseMove);
}
pWid = GetWidPt(pt);
if (pWid != NULL
&& m_h2oLButtonDown.first == pWid->GetHwid()
&& m_h2oLButtonDown.second == pWid)
{
pWid->SendWidMessage(WUM_LBUTTONCLICK, wParam, lParam);
}
ClearH2O(m_h2oLButtonDown);
}
break;
case WM_TIMER:
{
pWid = GetWidgetFromTimer((UINT_PTR)wParam);
if (pWid != NULL)
{
lResult = pWid->SendWidMessage(uMsg, wParam, lParam);
}
}
break;
case WM_KEYDOWN:
case WM_MOUSEHWHEEL:
case WM_MOUSEWHEEL:
{
pWid = GetObject(m_h2oFocused);
if (pWid != NULL)
{
lResult = pWid->SendWidMessage(uMsg, wParam, lParam);
}
}
break;
case WM_COMMAND:
{
if (lParam == 0)
{
break;
}
HWND hWndChild = (HWND)lParam;
lResult = ::SendMessageW(hWndChild, OCM__BASE + uMsg, wParam, lParam);
break;
}
default:
lResult = 0;
}
return lResult;
}