126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
/**********************************************************************/
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/** Microsoft Windows/NT **/
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/** Copyright(c) Microsoft Corp., 1991 **/
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/**********************************************************************/
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/*
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bltrect.hxx
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Rectangle support for BLT
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This file contains the declaration of the RECT class.
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FILE HISTORY:
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beng 22-Jul-1991 Created
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terryk 03-Aug-1991 add Screen<->client coordinate
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system subroutine.
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terryk 16-Aug-1991 Code review changed.
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Attend: Rustanl davidhov davidbul
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terryk
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*/
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#ifndef _BLTRECT_HXX_
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#define _BLTRECT_HXX_
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/*************************************************************************
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NAME: XYRECT
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SYNOPSIS: Rectangle calculation and manipulation object
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INTERFACE: XYRECT() - constructor. May take window.
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operator==() - equality operator
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operator=() - assignment operator
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ContainsXY() - determine whether point is in rectangle
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IsEmpty() - determine empty rectangle
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Offset() - moves rectangle
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Inflate() - sizes rectangle by constant addition
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CalcIntersect() - calculate intersection of two others
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CalcUnion() - calculate union of two others
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operator const RECT*()
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- access operator for Win APIs
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ConvertClientToScreen() - convert the rectangle from client
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coordinate system to screen coordinate
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system.
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ConvertScreenToClient() - convert the screen coordinate
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system to client coordinate system.
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PARENT: BASE
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USES: XYPOINT, XYDIMENSION
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CAVEATS:
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May report error upon construction if built from a window.
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NOTES:
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HISTORY:
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beng 22-Jul-1991 Created
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terryk 03-Aug-1991 add convertion routines.
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terryk 16-Aug-1991 Correct typos; added operator +=
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beng 09-Oct-1991 Extended get-client-window ctors
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beng 28-May-1992 Make client rect pwnd arg const
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**************************************************************************/
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DLL_CLASS XYRECT: public BASE
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{
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private:
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RECT _rect;
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public:
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// Create an empty rectangle
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XYRECT();
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XYRECT( XYPOINT xyUl, XYPOINT xyLr );
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XYRECT( XYPOINT xy, XYDIMENSION dxy );
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XYRECT( INT xUl, INT yUl, INT xLr, INT yLr );
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XYRECT( const RECT & rect );
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// Get the client (or bounding) rectangle from the window
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XYRECT( HWND hwnd, BOOL fClientOnly = TRUE );
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XYRECT( const WINDOW * pwnd, BOOL fClientOnly = TRUE );
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XYRECT( const XYRECT & rect );
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XYRECT& operator=( const XYRECT& rect );
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XYRECT& AdjustLeft( INT dx ) { _rect.left += dx; return *this; }
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XYRECT& AdjustRight( INT dx ) { _rect.right += dx; return *this; }
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XYRECT& AdjustTop( INT dy ) { _rect.top += dy; return *this; }
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XYRECT& AdjustBottom( INT dy ) { _rect.bottom += dy; return *this; }
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INT QueryLeft() const { return _rect.left; }
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INT QueryRight() const { return _rect.right; }
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INT QueryTop() const { return _rect.top; }
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INT QueryBottom() const { return _rect.bottom; }
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XYRECT& operator +=( const XYRECT& xySrc ) ;
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INT CalcWidth() const { return _rect.right - _rect.left; }
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INT CalcHeight() const { return _rect.bottom - _rect.top; }
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XYRECT& Offset( INT dx, INT dy );
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XYRECT& Offset( XYDIMENSION dxy );
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XYRECT& Inflate( INT dx, INT dy );
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XYRECT& Inflate( XYDIMENSION dxy );
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XYRECT& CalcIntersect( const XYRECT &xySrc1, const XYRECT &xySrc2 );
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XYRECT& CalcUnion( const XYRECT &xySrc1, const XYRECT &xySrc2 );
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BOOL ContainsXY( XYPOINT xy ) const;
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BOOL IsEmpty() const;
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BOOL operator==( const XYRECT& ) const;
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operator const RECT*() const { return &_rect; }
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VOID ConvertClientToScreen( HWND hwnd );
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VOID ConvertScreenToClient( HWND hwnd );
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};
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#endif // _BLTRECT_HXX_
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