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