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Implemented uiContainer transparent background drawing.

This commit is contained in:
Pietro Gagliardi 2015-05-05 09:10:58 -04:00
parent 2d49baa2f1
commit c0cc7f2df4
1 changed files with 17 additions and 0 deletions
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17
windows/container.c
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@ -119,6 +119,9 @@ static LRESULT CALLBACK containerWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LP
NMHDR *nm = (NMHDR *) lParam; NMHDR *nm = (NMHDR *) lParam;
WINDOWPOS *wp = (WINDOWPOS *) lParam; WINDOWPOS *wp = (WINDOWPOS *) lParam;
RECT r; RECT r;
HDC dc;
PAINTSTRUCT ps;
HBRUSH brush, prevbrush;
cc = uiContainer(GetWindowLongPtrW(hwnd, GWLP_USERDATA)); cc = uiContainer(GetWindowLongPtrW(hwnd, GWLP_USERDATA));
if (cc == NULL) if (cc == NULL)
@ -163,6 +166,20 @@ static LRESULT CALLBACK containerWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LP
logLastError("error setting transparent background mode to controls in parentWndProc()"); logLastError("error setting transparent background mode to controls in parentWndProc()");
c->brush = getControlBackgroundBrush((HWND) lParam, (HDC) wParam); c->brush = getControlBackgroundBrush((HWND) lParam, (HDC) wParam);
return (LRESULT) (c->brush); return (LRESULT) (c->brush);
case WM_PAINT:
if (cc == NULL)
break;
c = (struct container *) (uiControl(cc)->Internal);
// TODO check for errors
dc = BeginPaint(c->hwnd, &ps);
GetClientRect(c->hwnd, &r);
brush = getControlBackgroundBrush(c->hwnd, dc);
prevbrush = SelectObject(dc, brush);
PatBlt(dc, r.left, r.top, r.right - r.left, r.bottom - r.top, PATCOPY);
SelectObject(dc, prevbrush);
DeleteObject(brush);
EndPaint(c->hwnd, &ps);
return 0;
case WM_WINDOWPOSCHANGED: case WM_WINDOWPOSCHANGED:
if ((wp->flags & SWP_NOSIZE) != 0) if ((wp->flags & SWP_NOSIZE) != 0)
break; break;