INT nulldrv_ExcludeClipRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
{
DC *dc = get_nulldrv_dc( dev );
RECT rect = get_clip_rect( dc, left, top, right, bottom );
INT ret;
HRGN rgn;
if (!(rgn = CreateRectRgnIndirect( &rect ))) return ERROR;
if (!dc->hClipRgn) create_default_clip_region( dc );
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, rgn, RGN_DIFF );
DeleteObject( rgn );
if (ret != ERROR) update_dc_clipping( dc );
return ret;
}
INT nulldrv_ExtSelectClipRgn( PHYSDEV dev, HRGN rgn, INT mode )
{
DC *dc = get_nulldrv_dc( dev );
INT ret;
if (!rgn)
{
switch (mode)
{
case RGN_COPY:
if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
dc->hClipRgn = 0;
ret = SIMPLEREGION;
break;
case RGN_DIFF:
return ERROR;
default:
FIXME("Unimplemented: hrgn NULL in mode: %d\n", mode);
return ERROR;
}
}
else
{
HRGN mirrored = 0;
if (dc->layout & LAYOUT_RTL)
{
if (!(mirrored = CreateRectRgn( 0, 0, 0, 0 ))) return ERROR;
mirror_region( mirrored, rgn, dc->vis_rect.right - dc->vis_rect.left );
rgn = mirrored;
}
if (!dc->hClipRgn)
create_default_clip_region( dc );
if (mode == RGN_COPY)
ret = CombineRgn( dc->hClipRgn, rgn, 0, mode );
else
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, rgn, mode);
if (mirrored) DeleteObject( mirrored );
}
update_dc_clipping( dc );
return ret;
}
/******************************************************************************
* ExtSelectClipRgn [GDI32.@]
*/
INT WINAPI ExtSelectClipRgn( HDC hdc, HRGN hrgn, INT fnMode )
{
INT retval;
RECT rect;
DC * dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
TRACE("%p %p %d\n", hdc, hrgn, fnMode );
update_dc( dc );
if (dc->funcs->pExtSelectClipRgn)
{
retval = dc->funcs->pExtSelectClipRgn( dc->physDev, hrgn, fnMode );
release_dc_ptr( dc );
return retval;
}
if (!hrgn)
{
if (fnMode == RGN_COPY)
{
if (dc->hClipRgn) DeleteObject( dc->hClipRgn );
dc->hClipRgn = 0;
}
else
{
FIXME("Unimplemented: hrgn NULL in mode: %d\n", fnMode);
release_dc_ptr( dc );
return ERROR;
}
}
else
{
if (!dc->hClipRgn)
create_default_clip_region( dc );
if(fnMode == RGN_COPY)
CombineRgn( dc->hClipRgn, hrgn, 0, fnMode );
else
CombineRgn( dc->hClipRgn, dc->hClipRgn, hrgn, fnMode);
}
CLIPPING_UpdateGCRegion( dc );
release_dc_ptr( dc );
return GetClipBox(hdc, &rect);
}
/***********************************************************************
* ExcludeClipRect (GDI32.@)
*/
INT WINAPI ExcludeClipRect( HDC hdc, INT left, INT top,
INT right, INT bottom )
{
HRGN newRgn;
INT ret;
DC *dc = get_dc_ptr( hdc );
if (!dc) return ERROR;
TRACE("%p %dx%d,%dx%d\n", hdc, left, top, right, bottom );
update_dc( dc );
if(dc->funcs->pExcludeClipRect)
{
ret = dc->funcs->pExcludeClipRect( dc->physDev, left, top, right, bottom );
/* FIXME: ret is just a success flag, we should return a proper value */
}
else
{
POINT pt[2];
pt[0].x = left;
pt[0].y = top;
pt[1].x = right;
pt[1].y = bottom;
LPtoDP( hdc, pt, 2 );
if (!(newRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
if (!dc->hClipRgn)
create_default_clip_region( dc );
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, newRgn, RGN_DIFF );
DeleteObject( newRgn );
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
}
release_dc_ptr( dc );
return ret;
}