357 lines
9.0 KiB
C
357 lines
9.0 KiB
C
/*
|
|
* Rectangle-related functions
|
|
*
|
|
* Copyright 1993, 1996 Alexandre Julliard
|
|
*
|
|
*/
|
|
|
|
#include "windows.h"
|
|
|
|
|
|
/***********************************************************************
|
|
* SetRect16 (USER.72)
|
|
*/
|
|
void WINAPI SetRect16( LPRECT16 rect, INT16 left, INT16 top,
|
|
INT16 right, INT16 bottom )
|
|
{
|
|
rect->left = left;
|
|
rect->right = right;
|
|
rect->top = top;
|
|
rect->bottom = bottom;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetRect32 (USER32.499)
|
|
*/
|
|
BOOL32 WINAPI SetRect32( LPRECT32 rect, INT32 left, INT32 top,
|
|
INT32 right, INT32 bottom )
|
|
{
|
|
rect->left = left;
|
|
rect->right = right;
|
|
rect->top = top;
|
|
rect->bottom = bottom;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetRectEmpty16 (USER.73)
|
|
*/
|
|
void WINAPI SetRectEmpty16( LPRECT16 rect )
|
|
{
|
|
rect->left = rect->right = rect->top = rect->bottom = 0;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetRectEmpty32 (USER32.500)
|
|
*/
|
|
BOOL32 WINAPI SetRectEmpty32( LPRECT32 rect )
|
|
{
|
|
rect->left = rect->right = rect->top = rect->bottom = 0;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CopyRect16 (USER.74)
|
|
*/
|
|
BOOL16 WINAPI CopyRect16( RECT16 *dest, const RECT16 *src )
|
|
{
|
|
*dest = *src;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* CopyRect32 (USER32.62)
|
|
*/
|
|
BOOL32 WINAPI CopyRect32( RECT32 *dest, const RECT32 *src )
|
|
{
|
|
*dest = *src;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* IsRectEmpty16 (USER.75)
|
|
*/
|
|
BOOL16 WINAPI IsRectEmpty16( const RECT16 *rect )
|
|
{
|
|
return ((rect->left == rect->right) || (rect->top == rect->bottom));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* IsRectEmpty32 (USER32.347)
|
|
*/
|
|
BOOL32 WINAPI IsRectEmpty32( const RECT32 *rect )
|
|
{
|
|
return ((rect->left == rect->right) || (rect->top == rect->bottom));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* PtInRect16 (USER.76)
|
|
*/
|
|
BOOL16 WINAPI PtInRect16( const RECT16 *rect, POINT16 pt )
|
|
{
|
|
return ((pt.x >= rect->left) && (pt.x < rect->right) &&
|
|
(pt.y >= rect->top) && (pt.y < rect->bottom));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* PtInRect32 (USER32.424)
|
|
*/
|
|
BOOL32 WINAPI PtInRect32( const RECT32 *rect, POINT32 pt )
|
|
{
|
|
return ((pt.x >= rect->left) && (pt.x < rect->right) &&
|
|
(pt.y >= rect->top) && (pt.y < rect->bottom));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetRect16 (USER.77)
|
|
*/
|
|
void WINAPI OffsetRect16( LPRECT16 rect, INT16 x, INT16 y )
|
|
{
|
|
rect->left += x;
|
|
rect->right += x;
|
|
rect->top += y;
|
|
rect->bottom += y;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetRect32 (USER32.406)
|
|
*/
|
|
BOOL32 WINAPI OffsetRect32( LPRECT32 rect, INT32 x, INT32 y )
|
|
{
|
|
rect->left += x;
|
|
rect->right += x;
|
|
rect->top += y;
|
|
rect->bottom += y;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* InflateRect16 (USER.78)
|
|
*/
|
|
void WINAPI InflateRect16( LPRECT16 rect, INT16 x, INT16 y )
|
|
{
|
|
rect->left -= x;
|
|
rect->top -= y;
|
|
rect->right += x;
|
|
rect->bottom += y;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* InflateRect32 (USER32.321)
|
|
*/
|
|
BOOL32 WINAPI InflateRect32( LPRECT32 rect, INT32 x, INT32 y )
|
|
{
|
|
rect->left -= x;
|
|
rect->top -= y;
|
|
rect->right += x;
|
|
rect->bottom += y;
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* IntersectRect16 (USER.79)
|
|
*/
|
|
BOOL16 WINAPI IntersectRect16( LPRECT16 dest, const RECT16 *src1,
|
|
const RECT16 *src2 )
|
|
{
|
|
if (IsRectEmpty16(src1) || IsRectEmpty16(src2) ||
|
|
(src1->left >= src2->right) || (src2->left >= src1->right) ||
|
|
(src1->top >= src2->bottom) || (src2->top >= src1->bottom))
|
|
{
|
|
SetRectEmpty16( dest );
|
|
return FALSE;
|
|
}
|
|
dest->left = MAX( src1->left, src2->left );
|
|
dest->right = MIN( src1->right, src2->right );
|
|
dest->top = MAX( src1->top, src2->top );
|
|
dest->bottom = MIN( src1->bottom, src2->bottom );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* IntersectRect32 (USER32.327)
|
|
*/
|
|
BOOL32 WINAPI IntersectRect32( LPRECT32 dest, const RECT32 *src1,
|
|
const RECT32 *src2 )
|
|
{
|
|
if (IsRectEmpty32(src1) || IsRectEmpty32(src2) ||
|
|
(src1->left >= src2->right) || (src2->left >= src1->right) ||
|
|
(src1->top >= src2->bottom) || (src2->top >= src1->bottom))
|
|
{
|
|
SetRectEmpty32( dest );
|
|
return FALSE;
|
|
}
|
|
dest->left = MAX( src1->left, src2->left );
|
|
dest->right = MIN( src1->right, src2->right );
|
|
dest->top = MAX( src1->top, src2->top );
|
|
dest->bottom = MIN( src1->bottom, src2->bottom );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* UnionRect16 (USER.80)
|
|
*/
|
|
BOOL16 WINAPI UnionRect16( LPRECT16 dest, const RECT16 *src1,
|
|
const RECT16 *src2 )
|
|
{
|
|
if (IsRectEmpty16(src1))
|
|
{
|
|
if (IsRectEmpty16(src2))
|
|
{
|
|
SetRectEmpty16( dest );
|
|
return FALSE;
|
|
}
|
|
else *dest = *src2;
|
|
}
|
|
else
|
|
{
|
|
if (IsRectEmpty16(src2)) *dest = *src1;
|
|
else
|
|
{
|
|
dest->left = MIN( src1->left, src2->left );
|
|
dest->right = MAX( src1->right, src2->right );
|
|
dest->top = MIN( src1->top, src2->top );
|
|
dest->bottom = MAX( src1->bottom, src2->bottom );
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* UnionRect32 (USER32.559)
|
|
*/
|
|
BOOL32 WINAPI UnionRect32( LPRECT32 dest, const RECT32 *src1,
|
|
const RECT32 *src2 )
|
|
{
|
|
if (IsRectEmpty32(src1))
|
|
{
|
|
if (IsRectEmpty32(src2))
|
|
{
|
|
SetRectEmpty32( dest );
|
|
return FALSE;
|
|
}
|
|
else *dest = *src2;
|
|
}
|
|
else
|
|
{
|
|
if (IsRectEmpty32(src2)) *dest = *src1;
|
|
else
|
|
{
|
|
dest->left = MIN( src1->left, src2->left );
|
|
dest->right = MAX( src1->right, src2->right );
|
|
dest->top = MIN( src1->top, src2->top );
|
|
dest->bottom = MAX( src1->bottom, src2->bottom );
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* EqualRect16 (USER.244)
|
|
*/
|
|
BOOL16 WINAPI EqualRect16( const RECT16* rect1, const RECT16* rect2 )
|
|
{
|
|
return ((rect1->left == rect2->left) && (rect1->right == rect2->right) &&
|
|
(rect1->top == rect2->top) && (rect1->bottom == rect2->bottom));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* EqualRect32 (USER32.194)
|
|
*/
|
|
BOOL32 WINAPI EqualRect32( const RECT32* rect1, const RECT32* rect2 )
|
|
{
|
|
return ((rect1->left == rect2->left) && (rect1->right == rect2->right) &&
|
|
(rect1->top == rect2->top) && (rect1->bottom == rect2->bottom));
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SubtractRect16 (USER.373)
|
|
*/
|
|
BOOL16 WINAPI SubtractRect16( LPRECT16 dest, const RECT16 *src1,
|
|
const RECT16 *src2 )
|
|
{
|
|
RECT16 tmp;
|
|
|
|
if (IsRectEmpty16( src1 ))
|
|
{
|
|
SetRectEmpty16( dest );
|
|
return FALSE;
|
|
}
|
|
*dest = *src1;
|
|
if (IntersectRect16( &tmp, src1, src2 ))
|
|
{
|
|
if (EqualRect16( &tmp, dest ))
|
|
{
|
|
SetRectEmpty16( dest );
|
|
return FALSE;
|
|
}
|
|
if ((tmp.top == dest->top) && (tmp.bottom == dest->bottom))
|
|
{
|
|
if (tmp.left == dest->left) dest->left = tmp.right;
|
|
else if (tmp.right == dest->right) dest->right = tmp.left;
|
|
}
|
|
else if ((tmp.left == dest->left) && (tmp.right == dest->right))
|
|
{
|
|
if (tmp.top == dest->top) dest->top = tmp.bottom;
|
|
else if (tmp.bottom == dest->bottom) dest->bottom = tmp.top;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SubtractRect32 (USER32.536)
|
|
*/
|
|
BOOL32 WINAPI SubtractRect32( LPRECT32 dest, const RECT32 *src1,
|
|
const RECT32 *src2 )
|
|
{
|
|
RECT32 tmp;
|
|
|
|
if (IsRectEmpty32( src1 ))
|
|
{
|
|
SetRectEmpty32( dest );
|
|
return FALSE;
|
|
}
|
|
*dest = *src1;
|
|
if (IntersectRect32( &tmp, src1, src2 ))
|
|
{
|
|
if (EqualRect32( &tmp, dest ))
|
|
{
|
|
SetRectEmpty32( dest );
|
|
return FALSE;
|
|
}
|
|
if ((tmp.top == dest->top) && (tmp.bottom == dest->bottom))
|
|
{
|
|
if (tmp.left == dest->left) dest->left = tmp.right;
|
|
else if (tmp.right == dest->right) dest->right = tmp.left;
|
|
}
|
|
else if ((tmp.left == dest->left) && (tmp.right == dest->right))
|
|
{
|
|
if (tmp.top == dest->top) dest->top = tmp.bottom;
|
|
else if (tmp.bottom == dest->bottom) dest->bottom = tmp.top;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|