staticex.cpp

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/////////////////////////////////////////////////////////////////////////////
// StaticEx.cpp : implementation file
//
// Copyright (C) 1996 Bill Berry
// All rights reserved.
//
// This class is freely distributable as long as the copyright accompanies 
// the header and implementaion sources.
//
// Modification History:
//
// Bill Berry			November 1996			Created
//                      March    1998           Update
//
// March update now includes Paul DiLascia's code from MSJ which
// allows the control to be used as a web link.
//
// Description:
//
//  Extended CStatic class. Allows easy customization of the following:
//
//      1. COLORREF bkColor( COLORREF crColor )
//         - Sets back ground color of the control
//
//      2. COLORREF textColor( COLORREF crColor )
//         - Sets text or foreground color of the control
//
//      3. COLORREF bkColor() const
//         - Returns back ground color of control
//
//      4. COLORREF textColor() const
//         - Returns text (or foreground) color of control
//
//      5. void setFont( const LOGFONT* lpLogFont )
//         - Sets the font of the static control.
//
//      6. void onClickDoShellCommand( const CString& linkName )
//
//         (Note: the idea for this part of the control
//                came fom Paul DiLascia in the December issue
//                of MSJ )
//
//         - Use control as a link to open a link (this may
//           be an exe if you like...
//
//      7. COLORREF setLinkColorVisited( COLORREF crColor )
//         - Sets the visit color, returns previous setting
//
//      8. COLORREF setLinkColorUnvisited( COLORREF crColor )
//         - Sets the unvisited color, returns previous setting
//
//      *** Set new font for this control ***
//
//      9. void setFont( const LOGFONT* lpLogFont );
//  
//     10. void setFont( LONG fontHeight      = -8, 
//                       LONG fontWeight      = FW_NORMAL,
//                       UCHAR pitchAndFamily = DEFAULT_PITCH | FF_DONTCARE,
//                       LPCSTR faceName      = _T("MS Sans Serif"          
//                     );
//
#include "stdafx.h"
#include "resource.h"
#include "StaticEx.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CStaticEx

IMPLEMENT_DYNCREATE( CStaticEx, CStatic )

BEGIN_MESSAGE_MAP(CStaticEx, CStatic)
	//{{AFX_MSG_MAP(CStaticEx)
	//}}AFX_MSG_MAP
    ON_WM_SETCURSOR()
    ON_WM_CTLCOLOR_REFLECT()
    ON_CONTROL_REFLECT( STN_CLICKED, OnClicked )
END_MESSAGE_MAP()

CStaticEx::CStaticEx() 
{
    // Use system colors for defaults
    //
    m_crTextColor = ::GetSysColor( COLOR_WINDOWTEXT );
    m_crBkColor   = ::GetSysColor( COLOR_3DFACE     );

    m_crOnClickColor   = RGB( 0,  128, 192 );

    // The default brush type; SOLID
    //
    CreateBrushType();

    // Uses default font
    //
    m_pCFont = 0;

    // Link was not visited
    //
    m_didClickEvent = FALSE;

    // Set to popup a dialog when this control is clicked
    //
    m_dialog = 0;

    // Show a new window when this control is clicked
    //
    m_showThisCwnd = 0;
    m_sendMsgToThisCwnd = 0;

    // defines a message that may be sent to m_showThisCwnd
    //
    m_msg_flags  = 0;
    m_wm_message = 0;

    // Do use the hand cursor
    //
    m_doCustomCursor = false;
}

CStaticEx::~CStaticEx()
{
    if ( m_pCFont ) delete m_pCFont;
}


// Note: Copy construction is blocked for this class.
//       This is because there would be no defined
//       m_hWnd during the construction of the object.
//
// CStaticEx::CStaticEx( const CStaticEx& o )
//

// Allow = operator to be used for copying basics.
//
CStaticEx& CStaticEx::operator = ( const CStaticEx& o )
{

    _ASSERT( o != *this ); // You probably did not mean to do this...

    if ( o == *this ) return *this; // copying self...
    
    m_shellCommandArg  = o.m_shellCommandArg;
    m_crOnClickColor   = o.m_crOnClickColor;

    bkColor( o.m_crBkColor );
    textColor( o.m_crTextColor );

    m_dialog            = o.m_dialog;
    m_showThisCwnd      = o.m_showThisCwnd;
    m_didClickEvent     = o.m_didClickEvent;
    m_sendMsgToThisCwnd = o.m_sendMsgToThisCwnd;
    m_msg_flags         = o.m_msg_flags;
    m_wm_message        = o.m_wm_message;
    m_doCustomCursor    = o.m_doCustomCursor;

    return *this;
}

/////////////////////////////////////////////////////////////////////////////
// CStaticEx message handlers


COLORREF CStaticEx::bkColor( COLORREF crColor )
{
    _ASSERT(::IsWindow(m_hWnd)); 

    COLORREF cr = m_crBkColor;
    
    m_crBkColor = crColor;
    
    m_brBkGround.DeleteObject();
    
    CreateBrushType();
    
    Invalidate();

    return cr;
}

COLORREF CStaticEx::textColor( COLORREF crColor )
{
    _ASSERT(::IsWindow(m_hWnd)); 
    
    COLORREF cr = m_crTextColor;
    
    m_crTextColor = crColor;
    
    Invalidate();
    
    return cr;
}

COLORREF CStaticEx::setLinkColorVisited( COLORREF crColor )
{
    COLORREF c  = m_crOnClickColor;
    m_crOnClickColor = crColor;
    return c;
}
COLORREF CStaticEx::setLinkColorUnvisited( COLORREF crColor )
{
    m_crTextColor = crColor;
    return textColor( crColor );
}


BOOL CStaticEx::CreateBrushType()
{
    return m_brBkGround.CreateSolidBrush( m_crBkColor );
}

void CStaticEx::onClickDoShellCommand( const CString& linkAddress /* = "[e-mail]" */ )
{
    m_shellCommandArg  = linkAddress;
}



HBRUSH CStaticEx::CtlColor(CDC* pDC, UINT nCtlColor) 
{
    // Setup for receiving mouse input; we only turn it
    // on if it is needed...
    //
    if ( !m_shellCommandArg.IsEmpty() ) 
    {
         doOnClickEvents();
         pDC->SetTextColor( m_didClickEvent ? m_crOnClickColor : m_crTextColor );
    }
    else 
         pDC->SetTextColor( m_crTextColor );
  
    pDC->SetBkColor  ( m_crBkColor );

    return (HBRUSH)m_brBkGround;
}

void CStaticEx::OnClicked()
{
    if ( m_showThisCwnd )
    {
        if ( m_showThisCwnd->IsWindowVisible() )
             m_showThisCwnd->ShowWindow( SW_HIDE );
        else
             m_showThisCwnd->ShowWindow( SW_SHOW );
    }

    if ( m_dialog )
    {
         m_dialog->DoModal();         
    }

    if ( !m_shellCommandArg.IsEmpty() )
    {
         // Call ShellExecute to run the link...
         //
         HINSTANCE h = ShellExecute( 0, "open", m_shellCommandArg, 0, 0, SW_SHOWNORMAL );

         if ( (UINT)h > 32 ) {
              m_didClickEvent = TRUE;
              Invalidate();
         }
         else {
             MessageBeep(0);
             AfxMessageBox( "Unable to open " + m_shellCommandArg + '.', MB_OK | MB_ICONINFORMATION );
         }
    }

    if ( m_wm_message )
    {
        ::SendMessage( m_sendMsgToThisCwnd->m_hWnd, m_wm_message, m_msg_flags, 0 );
    }
}

BOOL CStaticEx::OnSetCursor( CWnd* pWnd, UINT nHitTest, UINT message )
{
    HCURSOR hCursor;

    if ( m_doCustomCursor ) 
    {
        //hCursor = AfxGetApp()->LoadCursor( IDC_CURSOR_HAND );
    }
    else
    {
        hCursor = AfxGetApp()->LoadStandardCursor( IDC_ARROW );
    }

    _ASSERT( hCursor );

    ::SetCursor( hCursor );

    return TRUE;
}