/***********************************************************************
* IntersectVisRect (GDI.98)
*/
INT16 WINAPI IntersectVisRect16( HDC16 hdc16, INT16 left, INT16 top, INT16 right, INT16 bottom )
{
HRGN tempRgn;
INT16 ret;
POINT pt[2];
HDC hdc = HDC_32( hdc16 );
DC * dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
pt[0].x = left;
pt[0].y = top;
pt[1].x = right;
pt[1].y = bottom;
LPtoDP( hdc, pt, 2 );
TRACE("%p %ld,%ld - %ld,%ld\n", hdc, pt[0].x, pt[0].y, pt[1].x, pt[1].y);
if (!(tempRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
ret = CombineRgn( dc->hVisRgn, dc->hVisRgn, tempRgn, RGN_AND );
DeleteObject( tempRgn );
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* OffsetVisRgn (GDI.102)
*/
INT16 WINAPI OffsetVisRgn16( HDC16 hdc16, INT16 x, INT16 y )
{
INT16 retval;
HDC hdc = HDC_32( hdc16 );
DC * dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d\n", hdc, x, y );
retval = OffsetRgn( dc->hVisRgn, x, y );
CLIPPING_UpdateGCRegion( dc );
GDI_ReleaseObj( hdc );
return retval;
}
/******************************************************************************
* ExtSelectClipRgn [GDI32.@]
*/
INT WINAPI ExtSelectClipRgn( HDC hdc, HRGN hrgn, INT fnMode )
{
INT retval;
RECT rect;
DC * dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %p %d\n", hdc, hrgn, fnMode );
if (dc->funcs->pExtSelectClipRgn)
{
retval = dc->funcs->pExtSelectClipRgn( dc->physDev, hrgn, fnMode );
GDI_ReleaseObj( hdc );
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);
GDI_ReleaseObj( hdc );
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 );
GDI_ReleaseObj( hdc );
return GetClipBox(hdc, &rect);
}
/***********************************************************************
* IntersectClipRect (GDI32.@)
*/
INT WINAPI IntersectClipRect( HDC hdc, INT left, INT top, INT right, INT bottom )
{
INT ret;
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d - %d,%d\n", hdc, left, top, right, bottom );
if(dc->funcs->pIntersectClipRect)
{
ret = dc->funcs->pIntersectClipRect( 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 (!dc->hClipRgn)
{
dc->hClipRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y );
ret = SIMPLEREGION;
}
else
{
HRGN newRgn;
if (!(newRgn = CreateRectRgn( pt[0].x, pt[0].y, pt[1].x, pt[1].y ))) ret = ERROR;
else
{
ret = CombineRgn( dc->hClipRgn, dc->hClipRgn, newRgn, RGN_AND );
DeleteObject( newRgn );
}
}
if (ret != ERROR) CLIPPING_UpdateGCRegion( dc );
}
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* GetClipBox (GDI32.@)
*/
INT WINAPI GetClipBox( HDC hdc, LPRECT rect )
{
INT ret;
HRGN clip;
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
if ((clip = get_clip_region(dc)))
{
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( hrgn, dc->hVisRgn, clip, RGN_AND );
ret = GetRgnBox( hrgn, rect );
DeleteObject( hrgn );
}
else ret = GetRgnBox( dc->hVisRgn, rect );
DPtoLP( hdc, (LPPOINT)rect, 2 );
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* PtVisible (GDI32.@)
*/
BOOL WINAPI PtVisible( HDC hdc, INT x, INT y )
{
POINT pt;
BOOL ret;
HRGN clip;
DC *dc = DC_GetDCUpdate( hdc );
TRACE("%p %d,%d\n", hdc, x, y );
if (!dc) return FALSE;
pt.x = x;
pt.y = y;
LPtoDP( hdc, &pt, 1 );
ret = PtInRegion( dc->hVisRgn, pt.x, pt.y );
if (ret && (clip = get_clip_region(dc))) ret = PtInRegion( clip, pt.x, pt.y );
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* OffsetClipRgn (GDI32.@)
*/
INT WINAPI OffsetClipRgn( HDC hdc, INT x, INT y )
{
INT ret = SIMPLEREGION;
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return ERROR;
TRACE("%p %d,%d\n", hdc, x, y );
if(dc->funcs->pOffsetClipRgn)
{
ret = dc->funcs->pOffsetClipRgn( dc->physDev, x, y );
/* FIXME: ret is just a success flag, we should return a proper value */
}
else if (dc->hClipRgn) {
ret = OffsetRgn( dc->hClipRgn, MulDiv( x, dc->vportExtX, dc->wndExtX ),
MulDiv( y, dc->vportExtY, dc->wndExtY ) );
CLIPPING_UpdateGCRegion( dc );
}
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* SelectObject (GDI32.@)
*/
HGDIOBJ WINAPI SelectObject( HDC hdc, HGDIOBJ handle )
{
HGDIOBJ ret = 0;
DC * dc = DC_GetDCUpdate( hdc );
if (!dc) return 0;
TRACE("hdc=%04x %04x\n", hdc, handle );
/* Fonts get a rather different treatment so we'll handle them
separately */
if(GetObjectType(handle) == OBJ_FONT)
ret = FONT_SelectObject(dc, handle);
else if (dc->funcs->pSelectObject)
ret = dc->funcs->pSelectObject( dc, handle );
GDI_ReleaseObj( hdc );
if (ret && ret != handle)
{
inc_ref_count( handle );
dec_ref_count( ret );
}
return ret;
}
/***********************************************************************
* SaveVisRgn (GDI.129)
*/
HRGN16 WINAPI SaveVisRgn16( HDC16 hdc16 )
{
struct saved_visrgn *saved;
HDC hdc = HDC_32( hdc16 );
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return 0;
TRACE("%p\n", hdc );
if (!(saved = HeapAlloc( GetProcessHeap(), 0, sizeof(*saved) ))) goto error;
if (!(saved->hrgn = CreateRectRgn( 0, 0, 0, 0 ))) goto error;
CombineRgn( saved->hrgn, dc->hVisRgn, 0, RGN_COPY );
saved->next = dc->saved_visrgn;
dc->saved_visrgn = saved;
GDI_ReleaseObj( hdc );
return HRGN_16(saved->hrgn);
error:
GDI_ReleaseObj( hdc );
HeapFree( GetProcessHeap(), 0, saved );
return 0;
}
/***********************************************************************
* RectVisible (GDI32.@)
*/
BOOL WINAPI RectVisible( HDC hdc, const RECT* rect )
{
RECT tmpRect;
BOOL ret;
HRGN clip;
DC *dc = DC_GetDCUpdate( hdc );
if (!dc) return FALSE;
TRACE("%p %ld,%ldx%ld,%ld\n", hdc, rect->left, rect->top, rect->right, rect->bottom );
tmpRect = *rect;
LPtoDP( hdc, (POINT *)&tmpRect, 2 );
if ((clip = get_clip_region(dc)))
{
HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
CombineRgn( hrgn, dc->hVisRgn, clip, RGN_AND );
ret = RectInRegion( hrgn, &tmpRect );
DeleteObject( hrgn );
}
else ret = RectInRegion( dc->hVisRgn, &tmpRect );
GDI_ReleaseObj( hdc );
return ret;
}
