void ScrollTo(HWND hwnd, struct ClcData *dat, int desty, int noSmooth)
{
DWORD startTick, nowTick;
int oldy = dat->yScroll;
RECT clRect, rcInvalidate;
int maxy, previousy;
if (dat->iHotTrack != -1 && dat->yScroll != desty) {
pcli->pfnInvalidateItem(hwnd, dat, dat->iHotTrack);
dat->iHotTrack = -1;
ReleaseCapture();
}
GetClientRect(hwnd, &clRect);
rcInvalidate = clRect;
maxy = RowHeight::getTotalHeight(dat)-clRect.bottom;
if (desty > maxy)
desty = maxy;
if (desty < 0)
desty = 0;
if (abs(desty - dat->yScroll) < 4)
noSmooth = 1;
if ( !noSmooth && dat->exStyle & CLS_EX_NOSMOOTHSCROLLING)
noSmooth = 1;
previousy = dat->yScroll;
if ( !noSmooth) {
startTick = GetTickCount();
for (; ;) {
nowTick = GetTickCount();
if (nowTick >= startTick + dat->scrollTime)
break;
dat->yScroll = oldy + (desty - oldy) * (int) (nowTick - startTick) / dat->scrollTime;
if (dat->backgroundBmpUse & CLBF_SCROLL || dat->hBmpBackground == NULL)
ScrollWindowEx(hwnd, 0, previousy - dat->yScroll, NULL, NULL, NULL, NULL, SW_INVALIDATE);
else
InvalidateRect(hwnd, NULL, FALSE);
previousy = dat->yScroll;
if (cfg::dat.bSkinnedScrollbar && !dat->bisEmbedded)
CoolSB_SetScrollPos(hwnd, SB_VERT, dat->yScroll, TRUE);
else
SetScrollPos(hwnd, SB_VERT, dat->yScroll, TRUE);
UpdateWindow(hwnd);
}
}
dat->yScroll = desty;
if (dat->backgroundBmpUse & CLBF_SCROLL || dat->hBmpBackground == NULL) {
if ( !noSmooth)
ScrollWindowEx(hwnd, 0, previousy - dat->yScroll, NULL, NULL, NULL, NULL, SW_INVALIDATE);
else
InvalidateRect(hwnd, NULL, FALSE);
}
else
InvalidateRect(hwnd, NULL, FALSE);
if (cfg::dat.bSkinnedScrollbar && !dat->bisEmbedded)
CoolSB_SetScrollPos(hwnd, SB_VERT, dat->yScroll, TRUE);
else
SetScrollPos(hwnd, SB_VERT, dat->yScroll, TRUE);
dat->forceScroll = 0;
}
//
// Child window procedure
//
LRESULT CALLBACK ChildWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static int count;
char ach[80];
switch(msg)
{
case WM_VSCROLL:
switch(LOWORD(wParam))
{
case SB_LINEUP: nVScrollPos --; break;
case SB_LINEDOWN: nVScrollPos ++; break;
case SB_PAGEUP: nVScrollPos -= nVScrollPage; break;
case SB_PAGEDOWN: nVScrollPos += nVScrollPage; break;
case SB_TOP: nVScrollPos = 0; break;
case SB_BOTTOM: nVScrollPos = nVScrollMax -1; break;
case SB_THUMBTRACK: nVScrollPos = HIWORD(wParam); break;
}
wsprintf(ach, "WM_VSCROLL %d\n", count++);
OutputDebugString(ach);
if(nVScrollPos < 0)
nVScrollPos = 0;
if(nVScrollPos > nVScrollMax - nVScrollPage + 1)
nVScrollPos = nVScrollMax - nVScrollPage + 1;
CoolSB_SetScrollPos(hwnd, SB_VERT, nVScrollPos, TRUE);
return 0;
case WM_HSCROLL:
wsprintf(ach, "WM_HSCROLL %d\n", count++);
OutputDebugString(ach);
switch(LOWORD(wParam))
{
case SB_LINEUP: nHScrollPos --; break;
case SB_LINEDOWN: nHScrollPos ++; break;
case SB_PAGEUP: nHScrollPos -= nHScrollPage; break;
case SB_PAGEDOWN: nHScrollPos += nHScrollPage; break;
case SB_TOP: nHScrollPos = 0; break;
case SB_BOTTOM: nHScrollPos = nHScrollMax -1; break;
case SB_THUMBTRACK: nHScrollPos = HIWORD(wParam); break;
}
if(nHScrollPos < 0)
nHScrollPos = 0;
if(nHScrollPos > nHScrollMax - nHScrollPage + 1)
nHScrollPos = nHScrollMax - nHScrollPage + 1;
CoolSB_SetScrollPos(hwnd, SB_HORZ, nHScrollPos, TRUE);
return 0;
case WM_SIZE:
SetupScrollbars(hwnd);
return 0;
}
return DefWindowProc(hwnd, msg, wParam, lParam);
}