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comctl32: header: Make the column resizing smooth in full drag mode. 

Make the column resizing smooth in full drag mode even for listview
with lots of elements by redrawing only the resized column and calling
UpdateWindow.
This commit is contained in:
Mikołaj Zalewski 2006-05-22 22:47:37 +02:00 committed by Alexandre Julliard
parent e48a0a3c23
commit 64e5779c16
1 changed files with 18 additions and 7 deletions
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25
dlls/comctl32/header.c
View File

@ -1657,14 +1657,25 @@ HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
if (dwStyle & HDS_FULLDRAG) {
if (!HEADER_SendHeaderNotifyT (hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, NULL))
{
nWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
if (nWidth < 0)
nWidth = 0;
infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
RECT rcClient;
RECT rcScroll;
nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
if (nWidth < 0) nWidth = 0;
infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
HEADER_SetItemBounds(hwnd);
GetClientRect(hwnd, &rcClient);
rcScroll = rcClient;
rcScroll.left = lpItem->rect.left + nOldWidth;
ScrollWindowEx(hwnd, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
InvalidateRect(hwnd, &lpItem->rect, FALSE);
UpdateWindow(hwnd);
HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
}
HEADER_SetItemBounds (hwnd);
InvalidateRect(hwnd, NULL, FALSE);
}
else {
hdc = GetDC (hwnd);