/*
* Function CHyperLink::_HyperlinkProc
*
* Note: Processed messages are not passed back to the static control
* procedure. It does work fine but be aware that it could cause
* some problems if the static control is already subclassed.
* Consider the example where the static control would be already
* subclassed with the ToolTip control that needs to process mouse
* messages. In that situation, the ToolTip control would not work
* as expected.
*/
LRESULT CALLBACK CHyperLink::_HyperlinkProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
CHyperLink *pHyperLink = (CHyperLink *)GetProp(hwnd, PROP_OBJECT_PTR);
switch (message)
{
case WM_MOUSEMOVE:
{
if ( pHyperLink->m_bOverControl )
{
// This is the most common case for static branch prediction
// optimization
RECT rect;
GetClientRect(hwnd,&rect);
POINT pt = { LOWORD(lParam), HIWORD(lParam) };
if (!PTINRECT(&rect,pt))
{
ReleaseCapture();
}
}
else
{
pHyperLink->m_bOverControl = TRUE;
SendMessage(hwnd, WM_SETFONT,
(WPARAM)CHyperLink::g_UnderlineFont, FALSE);
InvalidateRect(hwnd, NULL, FALSE);
pHyperLink->OnSelect();
SetCapture(hwnd);
}
return 0;
}
case WM_SETCURSOR:
{
SetCursor(CHyperLink::g_hLinkCursor);
return TRUE;
}
case WM_CAPTURECHANGED:
{
pHyperLink->m_bOverControl = FALSE;
pHyperLink->OnDeselect();
SendMessage(hwnd, WM_SETFONT,
(WPARAM)pHyperLink->m_StdFont, FALSE);
InvalidateRect(hwnd, NULL, FALSE);
return 0;
}
case WM_KEYUP:
{
if( wParam != VK_SPACE )
{
break;
}
}
// Fall through
case WM_LBUTTONUP:
{
pHyperLink->Navigate();
return 0;
}
case WM_SETFOCUS: // Fall through
case WM_KILLFOCUS:
{
if( message == WM_SETFOCUS )
{
pHyperLink->OnSelect();
}
else // WM_KILLFOCUS
{
pHyperLink->OnDeselect();
}
CHyperLink::DrawFocusRect(hwnd);
return 0;
}
case WM_DESTROY:
{
SetWindowLongPtr(hwnd, GWLP_WNDPROC,
(LONG) pHyperLink->m_pfnOrigCtlProc);
SendMessage(hwnd, WM_SETFONT, (WPARAM) pHyperLink->m_StdFont, 0);
if( --CHyperLink::g_counter <= 0 )
{
destroyGlobalResources();
}
RemoveProp(hwnd, PROP_OBJECT_PTR);
break;
}
}
return CallWindowProc(pHyperLink->m_pfnOrigCtlProc, hwnd, message,
wParam, lParam);
}
LRESULT CALLBACK CLinkControl::_HyperlinkProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
CLinkControl *pHyperLink = (CLinkControl *)GetProp(hwnd, PROP_OBJECT_PTR);
switch (message)
{
case WM_MOUSEMOVE:
{
if (pHyperLink->m_bOverControl)
{
RECT rect;
GetClientRect(hwnd, &rect);
POINT pt = { LOWORD(lParam), HIWORD(lParam) };
if (!PtInRect(&rect, pt))
ReleaseCapture();
}
else
{
pHyperLink->m_bOverControl = TRUE;
SendMessage(hwnd, WM_SETFONT, (WPARAM)CLinkControl::g_UnderlineFont, FALSE);
InvalidateRect(hwnd, NULL, FALSE);
SetCapture(hwnd);
}
}
break;
case WM_SETCURSOR:
{
SetCursor(CLinkControl::g_hLinkCursor);
return TRUE;
}
break;
case WM_CAPTURECHANGED:
{
pHyperLink->m_bOverControl = FALSE;
SendMessage(hwnd, WM_SETFONT, (WPARAM)CLinkControl::g_NormalFont, FALSE);
InvalidateRect(hwnd, NULL, FALSE);
}
break;
case WM_KEYDOWN:
{
if ((wParam != VK_SPACE)&&(wParam != VK_RETURN))
break;
PostMessage(::GetParent(hwnd), LK_LINKITEMCLICKED, (WPARAM)hwnd, (LPARAM)0);
return 0;
}
break;
case BM_CLICK:
PostMessage(::GetParent(hwnd), LK_LINKITEMCLICKED, (WPARAM)hwnd, (LPARAM)0);
break;
case WM_LBUTTONDOWN:
pHyperLink->m_bMouseDownPressed = true;
// fallthrough
case WM_LBUTTONUP:
{
if (pHyperLink->m_bMouseDownPressed)
PostMessage(::GetParent(hwnd), LK_LINKITEMCLICKED, (WPARAM)hwnd, (LPARAM)0);
pHyperLink->m_bMouseDownPressed = false;
}
break;
case WM_GETDLGCODE:
{
LRESULT lres = CallWindowProc(pHyperLink->m_pfnOrigCtlProc, hwnd, message, wParam, lParam);
// we want all keys to get the return key
lres |= DLGC_WANTALLKEYS;
lres |= DLGC_BUTTON;
// but we don't want the tab key since that should be used in dialogs
// to switch the focus
lres &= ~DLGC_WANTTAB;
lres &= ~DLGC_STATIC;
if (lParam &&
((MSG *)lParam)->message == WM_KEYDOWN &&
((MSG *)lParam)->wParam == VK_TAB)
{
lres &= ~DLGC_WANTMESSAGE;
}
return lres;
}
break;
case WM_SETFOCUS:
// Fall through
case WM_KILLFOCUS:
{
CLinkControl::DrawFocusRect(hwnd);
}
break;
case WM_DESTROY:
{
SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)pHyperLink->m_pfnOrigCtlProc);
SendMessage(hwnd, WM_SETFONT, (WPARAM)pHyperLink->m_StdFont, 0);
if (--CLinkControl::g_counter <= 0)
destroyGlobalResources();
RemoveProp(hwnd, PROP_OBJECT_PTR);
}
break;
}
return CallWindowProc(pHyperLink->m_pfnOrigCtlProc, hwnd, message,
wParam, lParam);
}
