ooextoolbar.cpp

myie的源程序是用VC++写自已可以扩搌使用

// @mfunc:    (FUNCTIONAL)
//            <c COOExToolBar> 
//            Call when ever the system color are changing. Trap to rebuild
//            the toolbar image list with the good background color.
// @end =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void COOExToolBar::OnSysColorChange( void ) 
{
    // Call the base class method.
    // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    CToolBar::OnSysColorChange();
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
// @mfunc:    (FUNCTIONAL)
//            <c COOExToolBar> 
//            Call when the toolbar is moved.  There is a bug when the tool
//            bar is in flat mode, and in vertical position.  The separator
//            are not count in the height, so the last button is not completly
//            displayed.
// @end =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void COOExToolBar::OnWindowPosChanging( LPWINDOWPOS _pWindowPos ) 
{
    // Default processing
    // =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
    if( m_bOldFloating != ( IsFloating()?true:false ) )
    {
        m_bOldFloating = !m_bOldFloating;
        _pWindowPos->flags |= SWP_DRAWFRAME;
    }
    CToolBar::OnWindowPosChanging( _pWindowPos );
}           
// @end =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

// Start =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
// MFC Overloaded method.
// The following stuff is to make the command update UI mechanism
// work properly for flat tool bars. The main idea is to convert
// a "checked" button state into a "pressed" button state. Changed 
// lines marked with "PD"
// ------------------------------------------------------------------------
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
// @mfunc:    (FUNCTIONAL)
//            <c CCoolCmdUI> 
//            Came from Paul Dilascia Article.
// @end =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void CCoolCmdUI::Enable( BOOL bOn )
{
	m_bEnableChanged = TRUE;
	CToolBar* pToolBar = ( CToolBar* ) m_pOther;
	ASSERT( pToolBar != NULL );
	ASSERT_KINDOF( CToolBar, pToolBar );
	ASSERT( m_nIndex < m_nIndexMax );
	
	UINT nNewStyle = pToolBar->GetButtonStyle( m_nIndex ) & ~TBBS_DISABLED;
	if ( !bOn )
	{
		nNewStyle |= TBBS_DISABLED;
		// WINBUG: If a button is currently pressed and then is disabled
		// COMCTL32.DLL does not unpress the button, even after the mouse
		// button goes up!  We work around this bug by forcing TBBS_PRESSED
		// off when a button is disabled.
		nNewStyle &= ~TBBS_PRESSED;
	}
	ASSERT( !( nNewStyle & TBBS_SEPARATOR ) );
	pToolBar->SetButtonStyle( m_nIndex, nNewStyle );
}

// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
// @mfunc:    (FUNCTIONAL)
//            <c CCoolCmdUI> 
//            Came from Paul Dilascia Article.
// @end =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
void CCoolCmdUI::SetCheck( int nCheck )
{
	ASSERT( nCheck >= 0 && nCheck <= 2 ); // 0=>off, 1=>on, 2=>indeterminate
	CToolBar* pToolBar = ( CToolBar* ) m_pOther;
	ASSERT( pToolBar != NULL );
	ASSERT_KINDOF( CToolBar, pToolBar );
	ASSERT( m_nIndex < m_nIndexMax );
	
	UINT nOldStyle = pToolBar->GetButtonStyle( m_nIndex ); // PD
	UINT nNewStyle = nOldStyle &
		~( TBBS_PRESSED | TBBS_INDETERMINATE ); // PD
	if ( nCheck == 1 )
		nNewStyle |= TBBS_PRESSED; // PD
	else if ( nCheck == 2 )
		nNewStyle |= TBBS_INDETERMINATE;
	
	// Following is to fix display bug for TBBS_CHECKED:
	// If new state is unchecked, repaint--but only if style actually changing.
	// (Otherwise will end up with flicker)
	// 
	if ( nNewStyle != nOldStyle ) {
		ASSERT( !( nNewStyle & TBBS_SEPARATOR ) );
		pToolBar->SetButtonStyle( m_nIndex, nNewStyle );
		pToolBar->Invalidate();
	}
}
// @end =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

/*CSize COOExToolBar::CalcDynamicLayout(int nLength, DWORD dwMode)
{
	if ((nLength == -1)	&& 
	   !(dwMode & LM_MRUWIDTH) && !(dwMode & LM_COMMIT) &&
	   ((dwMode & LM_HORZDOCK) ||  (dwMode & LM_VERTDOCK)))
	{
		return CalcFixedLayout(dwMode & LM_STRETCH, dwMode & LM_HORZDOCK);
	}

	return CalcLayout(dwMode, nLength);
}
*/
//////////////////
// 1998 Microsoft Systems Journal - Paul DiLascia
// This is the all-important function that gets the true size of a button,
// instead of using m_sizeButton. And it's virtual, so you can override if
// my algorithm doesn't work, as will surely be the case in some circumstances.
//
CSize COOExToolBar::GetButtonSize(TBBUTTON* pData, int iButton)
{
	// Get the actual size of the button, not what's in m_sizeButton.
	// Make sure to do SendMessage instead of calling MFC's GetItemRect,
	// which has all sorts of bad side-effects! (Go ahead, take a look at it.)
	// 
	CRect rc;
	SendMessage(TB_GETITEMRECT, iButton, (LPARAM)&rc);
	CSize sz = rc.Size();
	
	////////////////
	// Now must do special case for various versions of comctl32.dll,
	//
	DWORD dwStyle = pData[iButton].fsStyle;
	if ((pData[iButton].fsState & TBSTATE_WRAP)) {
		if (dwStyle & TBSTYLE_SEP) {
			// this is the last separator in the row (eg vertically docked)
			// fudge the height, and ignore the width. TB_GETITEMRECT will return
			// size = (8 x 22) even for a separator in vertical toolbar
			//
			sz.cy = sz.cx;
			sz.cx = 0;			// separator takes no width if it's the last one
			
        } else if (dwStyle & TBSTYLE_DROPDOWN ) {//&&
			//!m_bShowDropdownArrowWhenVertical) {
			// ignore width of dropdown
			sz.cx = 0;
		}
	}
	return sz;
}

//////////////////
// 1998 Microsoft Systems Journal - Paul DiLascia
// I renamed this from _GetButton.
//
void COOExToolBar::GetButton(int nIndex, TBBUTTON* pButton) const
{
	CToolBar* pBar = (CToolBar*)this;
	VERIFY(pBar->SendMessage(TB_GETBUTTON, nIndex, (LPARAM)pButton));
	// TBSTATE_ENABLED == TBBS_DISABLED so invert it
	pButton->fsState ^= TBSTATE_ENABLED;
}

//////////////////
// 1998 Microsoft Systems Journal - Paul DiLascia
// I renamed this from _SetButton.
//
void COOExToolBar::SetButton(int nIndex, TBBUTTON* pButton)
{
	// get original button state
	TBBUTTON button;
	VERIFY(SendMessage(TB_GETBUTTON, nIndex, (LPARAM)&button));
	
	// prepare for old/new button comparsion
	button.bReserved[0] = 0;
	button.bReserved[1] = 0;
	// TBSTATE_ENABLED == TBBS_DISABLED so invert it
	pButton->fsState ^= TBSTATE_ENABLED;
	pButton->bReserved[0] = 0;
	pButton->bReserved[1] = 0;
	
	// nothing to do if they are the same
	if (memcmp(pButton, &button, sizeof(TBBUTTON)) != 0)
	{
		// don't redraw everything while setting the button
		DWORD dwStyle = GetStyle();
		ModifyStyle(WS_VISIBLE, 0);
		VERIFY(SendMessage(TB_DELETEBUTTON, nIndex, 0));
		VERIFY(SendMessage(TB_INSERTBUTTON, nIndex, (LPARAM)pButton));
		ModifyStyle(0, dwStyle & WS_VISIBLE);
		
		// invalidate appropriate parts
		if (((pButton->fsStyle ^ button.fsStyle) & TBSTYLE_SEP) ||
			((pButton->fsStyle & TBSTYLE_SEP) && pButton->iBitmap != button.iBitmap))
		{
			// changing a separator
			Invalidate(FALSE);
		}
		else
		{
			// invalidate just the button
			CRect rect;
			if (SendMessage(TB_GETITEMRECT, nIndex, (LPARAM)&rect))
				InvalidateRect(rect, FALSE);    // don't erase background
		}
	}
}

//////////////////
// 1998 Microsoft Systems Journal - Paul DiLascia
// Make the parent frame my owner. This is important for status bar
// prompts to work.
//

////////////////////////////////////////////////////////////////
// 1998 Microsoft Systems Journal - Paul DiLascia
// Stuff below is copied from MFC, my mods marked **PD**

#ifdef _MAC
#define CX_OVERLAP  1
#else
#define CX_OVERLAP  0
#endif

/*CSize COOExToolBar::CalcSize(TBBUTTON* pData, int nCount)
{
	ASSERT(pData != NULL && nCount > 0);
	
	CPoint cur(0,0);
	CSize sizeResult(0,0);
	int cyTallestOnRow = 0;
	
	for (int i = 0; i < nCount; i++)
	{
		if (pData[i].fsState & TBSTATE_HIDDEN)
			continue;
		
		// **PD** Load actual size of button into local var
		// that obscures CToolBar::m_sizeButton.
		CSize m_sizeButton = GetButtonSize(pData, i);
		
		// **PD** I also changed the logic below to be more correct.
		cyTallestOnRow = max(cyTallestOnRow, m_sizeButton.cy);
		sizeResult.cx = max(cur.x + m_sizeButton.cx, sizeResult.cx);
		sizeResult.cy = max(cur.y + m_sizeButton.cy, sizeResult.cy);
		
		cur.x += m_sizeButton.cx - CX_OVERLAP;
		
		if (pData[i].fsState & TBSTATE_WRAP)
		{
			cur.x = 0;
			cur.y += cyTallestOnRow;
			cyTallestOnRow = 0;
			if (pData[i].fsStyle & TBSTYLE_SEP)
				cur.y += m_sizeButton.cy;
		}
	}
	return sizeResult;
}

int COOExToolBar::WrapToolBar(TBBUTTON* pData, int nCount, int nWidth)
{
	ASSERT(pData != NULL && nCount > 0);
	
	int nResult = 0;
	int x = 0;
	for (int i = 0; i < nCount; i++)
	{
		pData[i].fsState &= ~TBSTATE_WRAP;
		
		if (pData[i].fsState & TBSTATE_HIDDEN)
			continue;
		
		int dx, dxNext;
		
		// **PD** Load actual size of button into local var
		// that obscures CToolBar::m_sizeButton.
		CSize m_sizeButton = GetButtonSize(pData, i);
		
		dx = m_sizeButton.cx;
		dxNext = dx - CX_OVERLAP;
		
		if (x + dx > nWidth)
		{
			BOOL bFound = FALSE;
			for (int j = i; j >= 0  &&  !(pData[j].fsState & TBSTATE_WRAP); j--)
			{
				// Find last separator that isn't hidden
				// a separator that has a command ID is not
				// a separator, but a custom control.
				if ((pData[j].fsStyle & TBSTYLE_SEP) &&
					(pData[j].idCommand == 0) &&
					!(pData[j].fsState & TBSTATE_HIDDEN))
				{
					bFound = TRUE; i = j; x = 0;
					pData[j].fsState |= TBSTATE_WRAP;
					nResult++;
					break;
				}
			}
			if (!bFound)
			{
				for (int j = i - 1; j >= 0 && !(pData[j].fsState & TBSTATE_WRAP); j--)
				{
					// Never wrap anything that is hidden,
					// or any custom controls
					if ((pData[j].fsState & TBSTATE_HIDDEN) ||
						((pData[j].fsStyle & TBSTYLE_SEP) &&
						(pData[j].idCommand != 0)))
						continue;
					
					bFound = TRUE; i = j; x = 0;
					pData[j].fsState |= TBSTATE_WRAP;
					nResult++;
					break;
				}
				if (!bFound)
					x += dxNext;
			}
		}
		else
			x += dxNext;
	}
	return nResult + 1;
}
*/
//////////////////////////////////////////////////////////////////////////
// 1998 Microsoft Systems Journal - Paul DiLascia
// Functions below are NOT modified. They're only here because they
// call the modified functions above, which are NOT virtual.
/*
void  COOExToolBar::SizeToolBar(TBBUTTON* pData, int nCount, int nLength, BOOL bVert)
{