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comctl32/listview: Implement LVS_EX_TRANSPARENTBKGND style.

This commit is contained in:
Nikolay Sivov 2009-09-05 16:48:15 +04:00 committed by Alexandre Julliard
parent d66b02b7b8
commit 5e1f5ebf6c
2 changed files with 65 additions and 1 deletions
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16
dlls/comctl32/listview.c
View File

@ -7299,7 +7299,10 @@ static BOOL LISTVIEW_SetBkColor(LISTVIEW_INFO *infoPtr, COLORREF clrBk)
if (clrBk == CLR_NONE)
infoPtr->hBkBrush = (HBRUSH)GetClassLongPtrW(infoPtr->hwndSelf, GCLP_HBRBACKGROUND);
else
{
infoPtr->hBkBrush = CreateSolidBrush(clrBk);
infoPtr->dwLvExStyle &= ~LVS_EX_TRANSPARENTBKGND;
}
LISTVIEW_InvalidateList(infoPtr);
}
@ -7785,6 +7788,11 @@ static DWORD LISTVIEW_SetExtendedListViewStyle(LISTVIEW_INFO *infoPtr, DWORD dwM
LISTVIEW_UpdateSize(infoPtr);
}
if((infoPtr->dwLvExStyle ^ dwOldExStyle) & LVS_EX_TRANSPARENTBKGND)
{
if (infoPtr->dwLvExStyle & LVS_EX_TRANSPARENTBKGND)
LISTVIEW_SetBkColor(infoPtr, CLR_NONE);
}
LISTVIEW_InvalidateList(infoPtr);
return dwOldExStyle;
@ -8800,7 +8808,13 @@ static inline BOOL LISTVIEW_EraseBkgnd(const LISTVIEW_INFO *infoPtr, HDC hdc)
if (!GetClipBox(hdc, &rc)) return FALSE;
if (infoPtr->clrBk == CLR_NONE)
return SendMessageW(infoPtr->hwndNotify, WM_ERASEBKGND, (WPARAM)hdc, 0);
{
if (infoPtr->dwLvExStyle & LVS_EX_TRANSPARENTBKGND)
return SendMessageW(infoPtr->hwndNotify, WM_PRINTCLIENT,
(WPARAM)hdc, PRF_ERASEBKGND);
else
return SendMessageW(infoPtr->hwndNotify, WM_ERASEBKGND, (WPARAM)hdc, 0);
}
/* for double buffered controls we need to do this during refresh */
if (infoPtr->dwLvExStyle & LVS_EX_DOUBLEBUFFER) return FALSE;

50
dlls/comctl32/tests/listview.c
View File

@ -265,6 +265,11 @@ static const struct message setredraw_seq[] = {
{ 0 }
};
static const struct message lvs_ex_transparentbkgnd_seq[] = {
{ WM_PRINTCLIENT, sent|lparam, 0, PRF_ERASEBKGND },
{ 0 }
};
struct subclass_info
{
WNDPROC oldproc;
@ -3950,6 +3955,50 @@ static void test_scrollnotify(void)
DestroyWindow(hwnd);
}
static void test_LVS_EX_TRANSPARENTBKGND(void)
{
HWND hwnd;
DWORD ret;
HDC hdc;
hwnd = create_listview_control(0);
ret = SendMessage(hwnd, LVM_SETBKCOLOR, 0, RGB(0, 0, 0));
expect(TRUE, ret);
SendMessage(hwnd, LVM_SETEXTENDEDLISTVIEWSTYLE, LVS_EX_TRANSPARENTBKGND,
LVS_EX_TRANSPARENTBKGND);
ret = SendMessage(hwnd, LVM_GETBKCOLOR, 0, 0);
if (ret != CLR_NONE)
{
win_skip("LVS_EX_TRANSPARENTBKGND unsupported\n");
DestroyWindow(hwnd);
return;
}
/* try to set some back color and check this style bit */
ret = SendMessage(hwnd, LVM_SETBKCOLOR, 0, RGB(0, 0, 0));
expect(TRUE, ret);
ret = SendMessage(hwnd, LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0);
ok(!(ret & LVS_EX_TRANSPARENTBKGND), "Expected LVS_EX_TRANSPARENTBKGND to unset\n");
/* now test what this style actually does */
SendMessage(hwnd, LVM_SETEXTENDEDLISTVIEWSTYLE, LVS_EX_TRANSPARENTBKGND,
LVS_EX_TRANSPARENTBKGND);
hdc = GetWindowDC(hwndparent);
flush_sequences(sequences, NUM_MSG_SEQUENCES);
SendMessageA(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
ok_sequence(sequences, PARENT_SEQ_INDEX, lvs_ex_transparentbkgnd_seq,
"LVS_EX_TRANSPARENTBKGND parent", FALSE);
ReleaseDC(hwndparent, hdc);
DestroyWindow(hwnd);
}
START_TEST(listview)
{
HMODULE hComctl32;
@ -4032,6 +4081,7 @@ START_TEST(listview)
test_canceleditlabel();
test_mapidindex();
test_scrollnotify();
test_LVS_EX_TRANSPARENTBKGND();
unload_v6_module(ctx_cookie);