73 lines
2 KiB
C++
73 lines
2 KiB
C++
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/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1992 **/
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/**********************************************************************/
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/*
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focuschk.hxx
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This file contains the definition for the focus checkbox
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FILE HISTORY:
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Johnl 29-Aug-1991 Created
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*/
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#ifndef _FOCUSCHK_HXX_
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#define _FOCUSCHK_HXX_
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/*************************************************************************
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NAME: FOCUS_CHECKBOX
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SYNOPSIS: A checkbox that has a focus rectangle drawn around it
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when it has the focus.
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INTERFACE: Same as CHECKBOX
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PARENT: CHECKBOX, CUSTOM_CONTROL
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CAVEATS: The focus rectangle is drawn on the owner window, just outside
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the defining window of the checkbox. This means if you drag
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the checkbox so the focus box is off the screen but the
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checkbox's window is not, you will lose the border. We
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are willing to live with this given our scheduling
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constraints.
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The checkbox should not move after this is constructed.
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Originally the focus rectangle was drawn inside the checkbox's
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window, unfortunately the control is always drawn after
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the OnPaintReq is called, thus we get overwritten, thus
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the we draw outside the control window.
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NOTES:
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HISTORY:
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Johnl 10-Sep-1991 Created
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**************************************************************************/
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DLL_CLASS FOCUS_CHECKBOX : public CHECKBOX, public CUSTOM_CONTROL
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{
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private:
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RECT _rectFocusBox ;
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BOOL _fHasFocus ;
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protected:
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virtual BOOL OnFocus( const FOCUS_EVENT & focusevent ) ;
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virtual BOOL OnDefocus( const FOCUS_EVENT & focusevent ) ;
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virtual BOOL OnPaintReq( void ) ;
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void DrawFocusRect( DEVICE_CONTEXT * pdc, LPRECT lpRect, BOOL fErase = FALSE ) ;
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void EraseFocusRect( DEVICE_CONTEXT * pdc, LPRECT lpRect )
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{ DrawFocusRect( pdc, lpRect, TRUE ) ; }
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public:
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FOCUS_CHECKBOX( OWNER_WINDOW * powin, CID cidCheckBox ) ;
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} ;
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#endif // _FOCUSCHK_HXX_
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