gecko-dev/cmd/qtfe/qtfe-region.cpp
1998-09-25 18:04:00 +00:00

175 lines
4.0 KiB
C++

/* $Id: qtfe-region.cpp,v 1.1 1998/09/25 18:01:38 ramiro%netscape.com Exp $
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Haavard Nord.
* Further developed by Warwick Allison, Kalle Dalheimer, Eirik Eng,
* Matthias Ettrich, Arnt Gulbrandsen, Haavard Nord and Paul Olav
* Tvete. Copyright (C) 1998 Warwick Allison, Kalle Dalheimer, Eirik
* Eng, Matthias Ettrich, Arnt Gulbrandsen, Haavard Nord and Paul Olav
* Tvete. All Rights Reserved.
*/
#include "fe_rgn.h"
#include <qregion.h>
QRect qRect( XP_Rect *r )
{
return QRect( r->left, r->top,
r->right - r->left +1,
r->bottom - r->top +1 );
}
#define QRGN(r) ((QRegion*)r)
extern "C" FE_Region
FE_CreateRegion()
{
return new QRegion();
}
extern "C" FE_Region
FE_CreateRectRegion(XP_Rect *rect)
{
return new QRegion( qRect(rect) );
}
extern "C" FE_Region
FE_SetRectRegion(FE_Region region, XP_Rect *rect)
{
ASSERT( region );
*QRGN(region) = QRegion( qRect(rect) );
return region;
}
extern "C" void
FE_DestroyRegion(FE_Region region)
{
ASSERT( region );
delete QRGN(region);
}
extern "C" FE_Region
FE_CopyRegion(FE_Region src, FE_Region dst)
{
ASSERT( src );
if ( dst )
*QRGN(dst) = *QRGN(src);
else
dst = new QRegion( *QRGN(src) );
return dst;
}
/* dst can be one of src1 or src2 */
extern "C" void
FE_IntersectRegion(FE_Region src1, FE_Region src2, FE_Region dst)
{
ASSERT( src1 && src2 && dst );
*QRGN(dst) = QRGN(src1)->intersect( *QRGN(src2) );
}
/* dst can be one of src1 or src2 */
extern "C" void
FE_UnionRegion(FE_Region src1, FE_Region src2, FE_Region dst)
{
ASSERT( src1 && src2 && dst );
*QRGN(dst) = QRGN(src1)->unite( *QRGN(src2) );
}
/* dst can be one of src1 or src2 */
extern "C" void
FE_SubtractRegion(FE_Region src1, FE_Region src2, FE_Region dst)
{
ASSERT( src1 && src2 && dst );
*QRGN(dst) = QRGN(src1)->subtract( *QRGN(src2) );
}
extern "C" XP_Bool
FE_IsEmptyRegion(FE_Region region)
{
ASSERT(region);
return QRGN(region)->isEmpty();
}
extern "C" void
FE_GetRegionBoundingBox(FE_Region region, XP_Rect *bbox)
{
ASSERT(region);
QRect r = QRGN(region)->boundingRect();
bbox->left = r.left();
bbox->right = r.right();
bbox->top = r.top();
bbox->bottom = r.bottom();
}
extern "C" XP_Bool
FE_IsEqualRegion(FE_Region rgn1, FE_Region rgn2)
{
ASSERT(rgn1 && rgn2);
return *QRGN(rgn1) == *QRGN(rgn2);
}
extern "C" void
FE_OffsetRegion(FE_Region region, int32 x_offset, int32 y_offset)
{
ASSERT(region);
QRGN(region)->translate( x_offset, y_offset );
}
extern "C" XP_Bool
FE_RectInRegion(FE_Region region, XP_Rect *rect)
{
ASSERT(region);
return QRGN(region)->contains( qRect(rect) );
}
extern "C" void
FE_ForEachRectInRegion(FE_Region region, FE_RectInRegionFunc func,
void *closure)
{
ASSERT(region && closure);
XP_Rect rect;
QArray<QRect> a = QRGN(region)->rects();
for ( int i=0; i<(int)a.size(); i++ ) {
QRect r = a[i];
rect.left = r.left();
rect.top = r.top();
rect.right = r.right()+1; // +1 because it's in XRectangle-style
rect.bottom = r.bottom()+1;
(*func)(closure,&rect);
}
}
#ifdef DEBUG
#if 0
static void
fe_InvertRect(MWContext *context, XP_Rect *rect)
{
}
#endif
extern "C" void
FE_HighlightRect(void *c, XP_Rect *rect, int how_much)
{
// debug( "FE_HighlightRect not implemented (debug function)" );
}
extern "C" void
FE_HighlightRegion(void *c, FE_Region region, int how_much)
{
// debug( "FE_HighlightRegion not implemented (debug function)" );
}
#endif // DEBUG