static INT
PAGER_HitTest (PAGER_INFO* infoPtr, const POINT * pt)
{
RECT clientRect, rcTopLeft, rcBottomRight;
POINT ptWindow;
GetClientRect (infoPtr->hwndSelf, &clientRect);
if (PtInRect(&clientRect, *pt))
{
TRACE("child\n");
return -1;
}
ptWindow = *pt;
PAGER_GetButtonRects(infoPtr, &rcTopLeft, &rcBottomRight, TRUE);
if ((infoPtr->TLbtnState != PGF_INVISIBLE) && PtInRect(&rcTopLeft, ptWindow))
{
TRACE("PGB_TOPORLEFT\n");
return PGB_TOPORLEFT;
}
else if ((infoPtr->BRbtnState != PGF_INVISIBLE) && PtInRect(&rcBottomRight, ptWindow))
{
TRACE("PGB_BOTTOMORRIGHT\n");
return PGB_BOTTOMORRIGHT;
}
TRACE("nowhere\n");
return -1;
}
static void
PAGER_UpdateBtns(PAGER_INFO *infoPtr, INT scrollRange, BOOL hideGrayBtns)
{
BOOL resizeClient;
BOOL repaintBtns;
INT oldTLbtnState = infoPtr->TLbtnState;
INT oldBRbtnState = infoPtr->BRbtnState;
POINT pt;
RECT rcTopLeft, rcBottomRight;
/* get button rects */
PAGER_GetButtonRects(infoPtr, &rcTopLeft, &rcBottomRight, TRUE);
GetCursorPos(&pt);
ScreenToClient( infoPtr->hwndSelf, &pt );
/* update states based on scroll position */
if (infoPtr->nPos > 0)
{
if (infoPtr->TLbtnState == PGF_INVISIBLE || infoPtr->TLbtnState == PGF_GRAYED)
infoPtr->TLbtnState = PGF_NORMAL;
}
else if (!hideGrayBtns && PtInRect(&rcTopLeft, pt))
infoPtr->TLbtnState = PGF_GRAYED;
else
infoPtr->TLbtnState = PGF_INVISIBLE;
if (scrollRange <= 0)
{
infoPtr->TLbtnState = PGF_INVISIBLE;
infoPtr->BRbtnState = PGF_INVISIBLE;
}
else if (infoPtr->nPos < scrollRange)
{
if (infoPtr->BRbtnState == PGF_INVISIBLE || infoPtr->BRbtnState == PGF_GRAYED)
infoPtr->BRbtnState = PGF_NORMAL;
}
else if (!hideGrayBtns && PtInRect(&rcBottomRight, pt))
infoPtr->BRbtnState = PGF_GRAYED;
else
infoPtr->BRbtnState = PGF_INVISIBLE;
/* only need to resize when entering or leaving PGF_INVISIBLE state */
resizeClient =
((oldTLbtnState == PGF_INVISIBLE) != (infoPtr->TLbtnState == PGF_INVISIBLE)) ||
((oldBRbtnState == PGF_INVISIBLE) != (infoPtr->BRbtnState == PGF_INVISIBLE));
/* initiate NCCalcSize to resize client wnd if necessary */
if (resizeClient)
SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
SWP_NOZORDER | SWP_NOACTIVATE);
/* repaint when changing any state */
repaintBtns = (oldTLbtnState != infoPtr->TLbtnState) ||
(oldBRbtnState != infoPtr->BRbtnState);
if (repaintBtns)
SendMessageW(infoPtr->hwndSelf, WM_NCPAINT, 0, 0);
}
static LRESULT
PAGER_NCPaint (PAGER_INFO* infoPtr, HRGN hRgn)
{
RECT rcBottomRight, rcTopLeft;
HDC hdc;
if (infoPtr->dwStyle & WS_MINIMIZE)
return 0;
DefWindowProcW (infoPtr->hwndSelf, WM_NCPAINT, (WPARAM)hRgn, 0);
if (!(hdc = GetDCEx (infoPtr->hwndSelf, 0, DCX_USESTYLE | DCX_WINDOW)))
return 0;
PAGER_GetButtonRects(infoPtr, &rcTopLeft, &rcBottomRight, FALSE);
PAGER_DrawButton(hdc, infoPtr->clrBk, rcTopLeft,
infoPtr->dwStyle & PGS_HORZ, TRUE, infoPtr->TLbtnState);
PAGER_DrawButton(hdc, infoPtr->clrBk, rcBottomRight,
infoPtr->dwStyle & PGS_HORZ, FALSE, infoPtr->BRbtnState);
ReleaseDC( infoPtr->hwndSelf, hdc );
return 0;
}
static LRESULT
PAGER_MouseMove (PAGER_INFO* infoPtr, INT keys, INT x, INT y)
{
POINT clpt, pt;
RECT wnrect, *btnrect = NULL;
BOOL topLeft = FALSE;
INT btnstate = 0;
INT hit;
HDC hdc;
pt.x = x;
pt.y = y;
TRACE("[%p] to (%d,%d)\n", infoPtr->hwndSelf, x, y);
ClientToScreen(infoPtr->hwndSelf, &pt);
GetWindowRect(infoPtr->hwndSelf, &wnrect);
if (PtInRect(&wnrect, pt)) {
RECT TLbtnrect, BRbtnrect;
PAGER_GetButtonRects(infoPtr, &TLbtnrect, &BRbtnrect, FALSE);
clpt = pt;
MapWindowPoints(0, infoPtr->hwndSelf, &clpt, 1);
hit = PAGER_HitTest(infoPtr, &clpt);
if ((hit == PGB_TOPORLEFT) && (infoPtr->TLbtnState == PGF_NORMAL))
{
topLeft = TRUE;
btnrect = &TLbtnrect;
infoPtr->TLbtnState = PGF_HOT;
btnstate = infoPtr->TLbtnState;
}
else if ((hit == PGB_BOTTOMORRIGHT) && (infoPtr->BRbtnState == PGF_NORMAL))
{
topLeft = FALSE;
btnrect = &BRbtnrect;
infoPtr->BRbtnState = PGF_HOT;
btnstate = infoPtr->BRbtnState;
}
/* If in one of the buttons the capture and draw buttons */
if (btnrect)
{
TRACE("[%p] draw btn (%ld,%ld)-(%ld,%ld), Capture %s, style %08lx\n",
infoPtr->hwndSelf, btnrect->left, btnrect->top,
btnrect->right, btnrect->bottom,
(infoPtr->bCapture) ? "TRUE" : "FALSE",
infoPtr->dwStyle);
if (!infoPtr->bCapture)
{
TRACE("[%p] SetCapture\n", infoPtr->hwndSelf);
SetCapture(infoPtr->hwndSelf);
infoPtr->bCapture = TRUE;
}
if (infoPtr->dwStyle & PGS_AUTOSCROLL)
SetTimer(infoPtr->hwndSelf, TIMERID1, 0x3e, 0);
hdc = GetWindowDC(infoPtr->hwndSelf);
/* OffsetRect(wnrect, 0 | 1, 0 | 1) */
PAGER_DrawButton(hdc, infoPtr->clrBk, *btnrect,
infoPtr->dwStyle & PGS_HORZ, topLeft, btnstate);
ReleaseDC(infoPtr->hwndSelf, hdc);
return 0;
}
}
/* If we think we are captured, then do release */
if (infoPtr->bCapture && (WindowFromPoint(pt) != infoPtr->hwndSelf))
{
NMHDR nmhdr;
infoPtr->bCapture = FALSE;
if (GetCapture() == infoPtr->hwndSelf)
{
ReleaseCapture();
if (infoPtr->TLbtnState == PGF_GRAYED)
{
infoPtr->TLbtnState = PGF_INVISIBLE;
SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
SWP_NOZORDER | SWP_NOACTIVATE);
}
else if (infoPtr->TLbtnState == PGF_HOT)
{
infoPtr->TLbtnState = PGF_NORMAL;
/* FIXME: just invalidate button rect */
RedrawWindow(infoPtr->hwndSelf, NULL, NULL, RDW_FRAME | RDW_INVALIDATE);
}
if (infoPtr->BRbtnState == PGF_GRAYED)
{
infoPtr->BRbtnState = PGF_INVISIBLE;
SetWindowPos(infoPtr->hwndSelf, 0, 0, 0, 0, 0,
SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
SWP_NOZORDER | SWP_NOACTIVATE);
}
else if (infoPtr->BRbtnState == PGF_HOT)
{
infoPtr->BRbtnState = PGF_NORMAL;
/* FIXME: just invalidate button rect */
RedrawWindow(infoPtr->hwndSelf, NULL, NULL, RDW_FRAME | RDW_INVALIDATE);
}
/* Notify parent of released mouse capture */
memset(&nmhdr, 0, sizeof(NMHDR));
nmhdr.hwndFrom = infoPtr->hwndSelf;
nmhdr.idFrom = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
nmhdr.code = NM_RELEASEDCAPTURE;
SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
(WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
}
if (IsWindow(infoPtr->hwndSelf))
KillTimer(infoPtr->hwndSelf, TIMERID1);
}
return 0;
}