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Make a correct use of clipping rectangles.

oldstable
Jerome Vouillon 1999-02-14 13:32:13 +00:00 committed by Alexandre Julliard
parent ab6415ce4b
commit 1da6dbab67
2 changed files with 113 additions and 200 deletions
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273
windows/scroll.c
View File

@ -35,87 +35,16 @@ void WINAPI ScrollWindow16(HWND16 hwnd, INT16 dx, INT16 dy, const RECT16 *rect,
/*************************************************************************
* ScrollWindow32 (USER32.450)
*
* FIXME: verify clipping region calculations
*/
BOOL32 WINAPI ScrollWindow32( HWND32 hwnd, INT32 dx, INT32 dy,
const RECT32 *rect, const RECT32 *clipRect )
{
HDC32 hdc;
HRGN32 hrgnUpdate,hrgnClip;
RECT32 rc, cliprc;
HWND32 hCaretWnd = CARET_GetHwnd();
WND* wndScroll = WIN_FindWndPtr( hwnd );
TRACE(scroll,"hwnd=%04x, dx=%d, dy=%d, lpRect =%p clipRect=%i,%i,%i,%i\n",
hwnd, dx, dy, rect,
clipRect ? clipRect->left : 0,
clipRect ? clipRect->top : 0,
clipRect ? clipRect->right : 0,
clipRect ? clipRect->bottom : 0 );
if ( !wndScroll || !WIN_IsWindowDrawable( wndScroll, TRUE ) ) return TRUE;
if ( !rect ) /* do not clip children */
{
GetClientRect32(hwnd, &rc);
hrgnClip = CreateRectRgnIndirect32( &rc );
if ((hCaretWnd == hwnd) || IsChild32(hwnd,hCaretWnd))
HideCaret32(hCaretWnd);
else hCaretWnd = 0;
hdc = GetDCEx32(hwnd, hrgnClip, DCX_CACHE | DCX_CLIPSIBLINGS);
DeleteObject32( hrgnClip );
}
else /* clip children */
{
CopyRect32(&rc, rect);
if (hCaretWnd == hwnd) HideCaret32(hCaretWnd);
else hCaretWnd = 0;
hdc = GetDCEx32( hwnd, 0, DCX_CACHE | DCX_USESTYLE );
}
if (clipRect == NULL)
GetClientRect32(hwnd, &cliprc);
else
CopyRect32(&cliprc, clipRect);
hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
ScrollDC32( hdc, dx, dy, &rc, &cliprc, hrgnUpdate, NULL );
ReleaseDC32(hwnd, hdc);
if( !rect ) /* move child windows and update region */
{
WND* wndPtr;
if( wndScroll->hrgnUpdate > 1 )
OffsetRgn32( wndScroll->hrgnUpdate, dx, dy );
for (wndPtr = wndScroll->child; wndPtr; wndPtr = wndPtr->next)
SetWindowPos32(wndPtr->hwndSelf, 0, wndPtr->rectWindow.left + dx,
wndPtr->rectWindow.top + dy, 0,0, SWP_NOZORDER |
SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOREDRAW |
SWP_DEFERERASE );
}
PAINT_RedrawWindow( hwnd, NULL, hrgnUpdate, RDW_ALLCHILDREN |
RDW_INVALIDATE | RDW_ERASE | RDW_ERASENOW, RDW_C_USEHRGN );
DeleteObject32( hrgnUpdate );
if( hCaretWnd )
{
POINT32 pt;
GetCaretPos32(&pt);
pt.x += dx; pt.y += dy;
SetCaretPos32(pt.x, pt.y);
ShowCaret32(hCaretWnd);
}
return TRUE;
return
(ERROR != ScrollWindowEx32( hwnd, dx, dy, rect, clipRect, 0, NULL,
(rect ? 0 : SW_SCROLLCHILDREN) |
SW_INVALIDATE ));
}
/*************************************************************************
* ScrollDC16 (USER.221)
*/
@ -145,9 +74,8 @@ BOOL32 WINAPI ScrollDC32( HDC32 hdc, INT32 dx, INT32 dy, const RECT32 *rc,
const RECT32 *prLClip, HRGN32 hrgnUpdate,
LPRECT32 rcUpdate )
{
RECT32 rClip;
RECT32 rect, rClip, rSrc;
POINT32 src, dest;
INT32 ldx, ldy;
DC *dc = (DC *)GDI_GetObjPtr(hdc, DC_MAGIC);
TRACE(scroll,"%04x %d,%d hrgnUpdate=%04x rcUpdate = %p cliprc = (%d,%d-%d,%d), rc=(%d,%d-%d,%d)\n",
@ -167,81 +95,69 @@ BOOL32 WINAPI ScrollDC32( HDC32 hdc, INT32 dx, INT32 dy, const RECT32 *rc,
/* compute device clipping region */
if ( rc )
rClip = *rc;
rect = *rc;
else /* maybe we should just return FALSE? */
GetClipBox32( hdc, &rClip );
GetClipBox32( hdc, &rect );
if (prLClip)
IntersectRect32(&rClip,&rClip,prLClip);
if( rClip.left >= rClip.right || rClip.top >= rClip.bottom )
{
GDI_HEAP_UNLOCK( hdc );
return FALSE;
}
SaveVisRgn( hdc );
IntersectVisRect( hdc, rClip.left, rClip.top,
rClip.right, rClip.bottom );
/* translate coordinates */
ldx = dx * dc->wndExtX / dc->vportExtX;
ldy = dy * dc->wndExtY / dc->vportExtY;
if (dx > 0)
dest.x = (src.x = rClip.left) + ldx;
IntersectRect32( &rClip,&rect,prLClip );
else
src.x = (dest.x = rClip.left) - ldx;
rClip = rect;
if (dy > 0)
dest.y = (src.y = rClip.top) + ldy;
else
src.y = (dest.y = rClip.top) - ldy;
rSrc = rClip;
OffsetRect32( &rSrc, -dx, -dy );
IntersectRect32( &rSrc, &rSrc, &rect );
/* copy bits */
if( rClip.right - rClip.left > ldx &&
rClip.bottom - rClip.top > ldy )
if(dc->w.hVisRgn)
{
ldx = rClip.right - rClip.left - ldx;
ldy = rClip.bottom - rClip.top - ldy;
if (!IsRectEmpty32(&rSrc))
{
dest.x = (src.x = rSrc.left) + dx;
dest.y = (src.y = rSrc.top) + dy;
if (!BitBlt32( hdc, dest.x, dest.y, ldx, ldy,
hdc, src.x, src.y, SRCCOPY))
{
GDI_HEAP_UNLOCK( hdc );
return FALSE;
}
/* copy bits */
if (!BitBlt32( hdc, dest.x, dest.y,
rSrc.right - rSrc.left, rSrc.bottom - rSrc.top,
hdc, src.x, src.y, SRCCOPY))
{
GDI_HEAP_UNLOCK( hdc );
return FALSE;
}
}
/* compute update areas */
if (hrgnUpdate || rcUpdate)
{
HRGN32 hrgn =
(hrgnUpdate) ? hrgnUpdate : CreateRectRgn32( 0,0,0,0 );
HRGN32 hrgn2;
dx = XLPTODP ( dc, rect.left + dx) - XLPTODP ( dc, rect.left);
dy = YLPTODP ( dc, rect.top + dy) - YLPTODP ( dc, rect.top);
LPtoDP32( hdc, (LPPOINT32)&rect, 2 );
LPtoDP32( hdc, (LPPOINT32)&rClip, 2 );
hrgn2 = CreateRectRgnIndirect32( &rect );
OffsetRgn32( hrgn2, dc->w.DCOrgX, dc->w.DCOrgY );
CombineRgn32( hrgn2, hrgn2, dc->w.hVisRgn, RGN_AND );
OffsetRgn32( hrgn2, -dc->w.DCOrgX, -dc->w.DCOrgY );
SetRectRgn32( hrgn, rClip.left, rClip.top,
rClip.right, rClip.bottom );
CombineRgn32( hrgn, hrgn, hrgn2, RGN_AND );
OffsetRgn32( hrgn2, dx, dy );
CombineRgn32( hrgn, hrgn, hrgn2, RGN_DIFF );
if( rcUpdate ) GetRgnBox32( hrgn, rcUpdate );
if (!hrgnUpdate) DeleteObject32( hrgn );
DeleteObject32( hrgn2 );
}
}
/* restore clipping region */
RestoreVisRgn( hdc );
/* compute update areas */
if ( (hrgnUpdate || rcUpdate) && dc->w.hVisRgn )
else
{
HRGN32 hrgn = (hrgnUpdate) ? hrgnUpdate : CreateRectRgn32( 0,0,0,0 );
HRGN32 hrgnClip;
LPtoDP32( hdc, (LPPOINT32)&rClip, 2 );
OffsetRect32( &rClip, dc->w.DCOrgX, dc->w.DCOrgY );
hrgnClip = CreateRectRgnIndirect32( &rClip );
CombineRgn32( hrgn, dc->w.hVisRgn, hrgnClip, RGN_AND );
OffsetRgn32( hrgn, dx, dy );
CombineRgn32( hrgn, dc->w.hVisRgn, hrgn, RGN_DIFF );
CombineRgn32( hrgn, hrgn, hrgnClip, RGN_AND );
OffsetRgn32( hrgn, -dc->w.DCOrgX, -dc->w.DCOrgY );
if( rcUpdate ) GetRgnBox32( hrgnUpdate, rcUpdate );
if (!hrgnUpdate) DeleteObject32( hrgn );
DeleteObject32( hrgnClip );
if (hrgnUpdate) SetRectRgn32(hrgnUpdate, 0, 0, 0, 0);
if (rcUpdate) SetRectEmpty32(rcUpdate);
}
GDI_HEAP_UNLOCK( hdc );
@ -315,8 +231,8 @@ INT32 WINAPI ScrollWindowEx32( HWND32 hwnd, INT32 dx, INT32 dy,
if( !wnd || !WIN_IsWindowDrawable( wnd, TRUE )) return ERROR;
if (rect == NULL) GetClientRect32(hwnd, &rc);
else rc = *rect;
GetClientRect32(hwnd, &rc);
if (rect) IntersectRect32(&rc, &rc, rect);
if (clipRect) IntersectRect32(&cliprc,&rc,clipRect);
else cliprc = rc;
@ -327,54 +243,57 @@ INT32 WINAPI ScrollWindowEx32( HWND32 hwnd, INT32 dx, INT32 dy,
HDC32 hDC;
BOOL32 bUpdate = (rcUpdate || hrgnUpdate || flags & (SW_INVALIDATE | SW_ERASE));
HRGN32 hrgnClip = CreateRectRgnIndirect32(&cliprc);
HRGN32 hrgnTemp = CreateRectRgnIndirect32(&rc);
RECT32 caretrc;
TRACE(scroll,"%04x, %d,%d hrgnUpdate=%04x rcUpdate = %p \
cliprc = (%d,%d-%d,%d), rc=(%d,%d-%d,%d) %04x\n",
(HWND16)hwnd, dx, dy, hrgnUpdate, rcUpdate,
clipRect?clipRect->left:0, clipRect?clipRect->top:0, clipRect?clipRect->right:0, clipRect?clipRect->bottom:0,
rect?rect->left:0, rect?rect->top:0, rect ?rect->right:0, rect ?rect->bottom:0, (UINT16)flags );
rc.left, rc.top, rc.right, rc.bottom, (UINT16)flags );
rc = cliprc;
bCaret = SCROLL_FixCaret(hwnd, &rc, flags);
caretrc = rc;
bCaret = SCROLL_FixCaret(hwnd, &caretrc, flags);
if( hrgnUpdate ) bOwnRgn = FALSE;
else if( bUpdate ) hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
hDC = GetDCEx32( hwnd, hrgnClip, DCX_CACHE | DCX_USESTYLE |
hDC = GetDCEx32( hwnd, hrgnClip, DCX_CACHE | DCX_USESTYLE |
DCX_KEEPCLIPRGN | DCX_INTERSECTRGN |
((flags & SW_SCROLLCHILDREN) ? DCX_NOCLIPCHILDREN : 0) );
if( (dc = (DC *)GDI_GetObjPtr(hDC, DC_MAGIC)) )
{
wnd->pDriver->pScrollWindow(wnd,dc,dx,dy,&cliprc,bUpdate);
if (dc->w.hVisRgn) {
wnd->pDriver->pScrollWindow(wnd,dc,dx,dy,&rc,bUpdate);
if( dc->w.hVisRgn && bUpdate )
{
OffsetRgn32( hrgnClip, dc->w.DCOrgX, dc->w.DCOrgY );
CombineRgn32( hrgnUpdate, dc->w.hVisRgn, hrgnClip, RGN_AND );
OffsetRgn32( hrgnUpdate, dx, dy );
CombineRgn32( hrgnUpdate, dc->w.hVisRgn, hrgnUpdate, RGN_DIFF );
CombineRgn32( hrgnUpdate, hrgnUpdate, hrgnClip, RGN_AND );
OffsetRgn32( hrgnUpdate, -dc->w.DCOrgX, -dc->w.DCOrgY );
if( bUpdate )
{
OffsetRgn32( hrgnTemp, dc->w.DCOrgX, dc->w.DCOrgY );
CombineRgn32( hrgnTemp, hrgnTemp, dc->w.hVisRgn,
RGN_AND );
OffsetRgn32( hrgnTemp, -dc->w.DCOrgX, -dc->w.DCOrgY );
CombineRgn32( hrgnUpdate, hrgnTemp, hrgnClip,
RGN_AND );
OffsetRgn32( hrgnTemp, dx, dy );
retVal =
CombineRgn32( hrgnUpdate, hrgnUpdate, hrgnTemp,
RGN_DIFF );
if( rcUpdate ) GetRgnBox32( hrgnUpdate, rcUpdate );
}
ReleaseDC32(hwnd, hDC);
GDI_HEAP_UNLOCK( hDC );
}
if( rcUpdate ) GetRgnBox32( hrgnUpdate, rcUpdate );
}
}
ReleaseDC32(hwnd, hDC);
GDI_HEAP_UNLOCK( hDC );
}
if( wnd->hrgnUpdate > 1 )
{
if( rect || clipRect )
{
if( (CombineRgn32( hrgnClip, hrgnClip,
wnd->hrgnUpdate, RGN_AND ) != NULLREGION) )
{
CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate, hrgnClip, RGN_DIFF );
OffsetRgn32( hrgnClip, dx, dy );
CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate, hrgnClip, RGN_OR );
}
}
else
OffsetRgn32( wnd->hrgnUpdate, dx, dy );
/* Takes into account the fact that some damages may have
occured during the scroll. */
CombineRgn32( hrgnTemp, wnd->hrgnUpdate, 0, RGN_COPY );
OffsetRgn32( hrgnTemp, dx, dy );
CombineRgn32( hrgnTemp, hrgnTemp, hrgnClip, RGN_AND );
CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate, hrgnTemp, RGN_OR );
}
if( flags & SW_SCROLLCHILDREN )
@ -384,7 +303,7 @@ rect?rect->left:0, rect?rect->top:0, rect ?rect->right:0, rect ?rect->bottom:0,
for( w = wnd->child; w; w = w->next )
{
CONV_RECT16TO32( &w->rectWindow, &r );
if( !clipRect || IntersectRect32(&r, &r, &cliprc) )
if( IntersectRect32(&r, &r, &rc) )
SetWindowPos32(w->hwndSelf, 0, w->rectWindow.left + dx,
w->rectWindow.top + dy, 0,0, SWP_NOZORDER |
SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOREDRAW |
@ -398,13 +317,13 @@ rect?rect->left:0, rect?rect->top:0, rect ?rect->right:0, rect ?rect->bottom:0,
if( bCaret )
{
SetCaretPos32( rc.left + dx, rc.top + dy );
SetCaretPos32( caretrc.left + dx, caretrc.top + dy );
ShowCaret32(0);
}
if( bOwnRgn && hrgnUpdate ) DeleteObject32( hrgnUpdate );
DeleteObject32( hrgnClip );
DeleteObject32( hrgnTemp );
}
return retVal;
}

40
windows/x11drv/wnd.c
View File

@ -536,42 +536,36 @@ void X11DRV_WND_PreSizeMove(WND *wndPtr)
void X11DRV_WND_PostSizeMove(WND *wndPtr)
{
if (!(wndPtr->dwStyle & WS_CHILD) &&
(X11DRV_GetXRootWindow(wndPtr) == DefaultRootWindow(display)))
(X11DRV_GetXRootWindow() == DefaultRootWindow(display)))
TSXUngrabServer( display );
}
/*****************************************************************
* X11DRV_WND_ScrollWindow
*/
void X11DRV_WND_ScrollWindow(
WND *wndPtr, DC *dcPtr, INT32 dx, INT32 dy,
const RECT32 *clipRect, BOOL32 bUpdate)
const RECT32 *rect, BOOL32 bUpdate)
{
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dcPtr->physDev;
POINT32 dst, src;
if( dx > 0 ) dst.x = (src.x = dcPtr->w.DCOrgX + clipRect->left) + dx;
else src.x = (dst.x = dcPtr->w.DCOrgX + clipRect->left) - dx;
dst.x = (src.x = dcPtr->w.DCOrgX + rect->left) + dx;
dst.y = (src.y = dcPtr->w.DCOrgY + rect->top) + dy;
if( dy > 0 ) dst.y = (src.y = dcPtr->w.DCOrgY + clipRect->top) + dy;
else src.y = (dst.y = dcPtr->w.DCOrgY + clipRect->top) - dy;
if ((clipRect->right - clipRect->left > abs(dx)) &&
(clipRect->bottom - clipRect->top > abs(dy)))
{
if (bUpdate) /* handles non-Wine windows hanging over the scrolled area */
TSXSetGraphicsExposures( display, physDev->gc, True );
TSXSetFunction( display, physDev->gc, GXcopy );
TSXCopyArea( display, physDev->drawable, physDev->drawable,
physDev->gc, src.x, src.y,
clipRect->right - clipRect->left - abs(dx),
clipRect->bottom - clipRect->top - abs(dy),
dst.x, dst.y );
if (bUpdate)
TSXSetGraphicsExposures( display, physDev->gc, False );
}
if (bUpdate) /* handles non-Wine windows hanging over the scrolled area */
TSXSetGraphicsExposures( display, physDev->gc, True );
TSXSetFunction( display, physDev->gc, GXcopy );
TSXCopyArea( display, physDev->drawable, physDev->drawable,
physDev->gc, src.x, src.y,
rect->right - rect->left,
rect->bottom - rect->top,
dst.x, dst.y );
if (bUpdate)
TSXSetGraphicsExposures( display, physDev->gc, False );
if (bUpdate) /* Make sure exposure events have been processed */
EVENT_Synchronize();
}
/***********************************************************************