/*	Copyright (C) 2004-2005 Li Yudong	Some ideas come from MiniGUI*//*** This program is free software; you can redistribute it and/or modify** it under the terms of the GNU General Public License as published by** the Free Software Foundation; either version 2 of the License, or** (at your option) any later version.**** This program is distributed in the hope that it will be useful,** but WITHOUT ANY WARRANTY; without even the implied warranty of** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the** GNU General Public License for more details.**** You should have received a copy of the GNU General Public License** along with this program; if not, write to the Free Software** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*/#include "../include/common.h"#include "../include/rect.h"BOOL GUIAPISetRect(	LPRECT lprc, // pointer to structure with rectangle to set	int xLeft,   // left side	int yTop,    // top side	int xRight,  // right side	int yBottom  // bottom side){	if(!lprc)		return false;	lprc->left		= xLeft;	lprc->top		= yTop;	lprc->right		= xRight;	lprc->bottom	= yBottom;	return true;}BOOL GUIAPISetRectEmpty(	LPRECT lprc   // pointer to structure with rectangle set to empty){	if(!lprc)		return false;	memset(lprc,0,sizeof(RECT));	return true;} BOOL GUIAPIIsRectEmpty(	const RECT *lprc   // pointer to structure with rectangle){	if((lprc->left==0) && ( lprc->right==0) 		&& (lprc->top==0) && (lprc->bottom==0))		return true;	else		return false;}BOOL GUIAPICopyRect(	LPRECT lprcDst,      // pointer to structure for destination rectangle	const RECT *lprcSrc  // pointer to structure for source rectangle){	if(!lprcDst)		return false;	if(!lprcSrc)		return false;	memcpy(lprcDst,lprcSrc,sizeof(RECT));	return true;}BOOL GUIAPIEqualRect(	const RECT *lprc1,  // pointer to structure with first rectangle	const RECT *lprc2   // pointer to structure with second rectangle){	if(!lprc1)		return false;	if(!lprc2)		return false;    if(lprc1->left		!= lprc2->left)		return false;    if(lprc1->top		!= lprc2->top)		return false;    if(lprc1->right		!= lprc2->right)	return false;    if(lprc1->bottom	!= lprc2->bottom)	return false;    return true;}BOOL GUIAPINormalizeRect(	LPRECT lprc){	if(!lprc)		return false;	if(lprc->left > lprc->right)		swap(lprc->left,lprc->right);	if(lprc->top > lprc->bottom)		swap(lprc->top,lprc->bottom);	return true;}BOOL GUIAPIIntersectRect(	LPRECT lprcDst,        // pointer to structure for intersection	const RECT *lprcSrc1,  // pointer to structure with first rectangle	const RECT *lprcSrc2   // pointer to structure with second rectangle){	if(!lprcDst)		return false;	if(!lprcSrc1)		return false;	if(!lprcSrc2)		return false;	lprcDst->left	= max(lprcSrc1->left, lprcSrc2->left);	lprcDst->top	= max(lprcSrc1->top, lprcSrc2->top);	lprcDst->right	= min(lprcSrc1->right, lprcSrc2->right);	lprcDst->bottom = min(lprcSrc1->bottom, lprcSrc2->bottom);	if(lprcDst->left > lprcDst->right)		return false;	if(lprcDst->top > lprcDst->bottom)		return false;	return true;}BOOL GUIAPIIsIntersect(	const RECT *lprc1,  // pointer to structure with first rectangle	const RECT *lprc2   // pointer to structure with second rectangle){    int left, top, right, bottom;	if(!lprc1)		return false;	if(!lprc2)		return false;	left	= max(lprc1->left, lprc2->left);	top		= max(lprc1->top, lprc2->top);	right	= min(lprc1->right, lprc2->right);	bottom	= min(lprc1->bottom, lprc2->bottom);    if((left > right) || (top > bottom))        return false;    return true;	}BOOL GUIAPIOffsetRect(	LPRECT lprc,  // pointer to structure with rectangle	int dx,       // horizontal offset	int dy        // vertical offset){	if(!lprc)		return false;	lprc->left += dx;	lprc->top += dy;	lprc->right += dx;	lprc->bottom += dy;	return true;} BOOL GUIAPIInflateRect(	LPRECT lprc,  // pointer to rectangle	int dx,       // amount to increase or decrease width	int dy        // amount to increase or decrease height){	if(!lprc)		return false;	lprc->left -= dx;	lprc->top -= dy;	lprc->right += dx;	lprc->bottom += dy;	return true;} BOOL GUIAPIPtInRect(	const RECT *lprc,  // pointer to structure with rectangle	int x,	int y){	if (   x >= lprc->left         && x <= lprc->right         && y >= lprc->top         && y <= lprc->bottom)         return TRUE;    else		return FALSE;}