关于重绘的Menu在CXXXView里响应pop菜单，菜单项状态不更新

bobo3198 2010-03-02 12:03:29

Menu里主要的两个地方:





void CSFC_Menu::InitMenu(CMenu *pMenu, BOOL bMainMenu)

{

	ASSERT(pMenu);

	MENU_LPITEMINFO	m_pItemData;



	for(int nItem=(int)pMenu->GetMenuItemCount()-1 ;nItem>=0; nItem--)

	{

		m_pItemData =new MENU_ITEMINFO;



		m_pItemData->nMenuID = pMenu->GetMenuItemID(nItem);

		if( m_pItemData->nMenuID < 0 && bMainMenu )//主菜单

		{

			m_pItemData->nMenuID = -2 ;

		}



		m_pItemData->nItem = nItem ;

		m_pItemData->nImage = GetMenuImage(m_pItemData->nMenuID);

		

		pMenu->GetMenuString(nItem, m_pItemData->strItemText, MF_BYPOSITION);



		//如果该项下还有子菜单，则递归调用该函数来修改其子菜单的风格

		CMenu *pSubMenu =pMenu->GetSubMenu(nItem);

		if(pSubMenu && m_pItemData->nMenuID != -2 && !bMainMenu )

			m_pItemData->nMenuID = -1;



		if(pSubMenu)

			InitMenu(pSubMenu);



		//修改菜单风格为自绘

		pMenu->ModifyMenu(nItem, MF_BYPOSITION | MF_OWNERDRAW, m_pItemData->nMenuID,

			(LPCTSTR)m_pItemData);//我觉得问题应该出在这里，没有加nState，但我DrawItem里是。。而且CMainFrame下的是正常的



		m_gListMenuInfo.AddTail(m_pItemData);

	}

}



void CSFC_Menu::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)

{

	CDC *pDC = CDC::FromHandle(lpDrawItemStruct->hDC);

	int nSaveDC=pDC->SaveDC();



	lpDrawItemStruct->CtlType = ODT_MENU;



	CRect rcItem = lpDrawItemStruct->rcItem ;

	UINT nState = lpDrawItemStruct->itemState;

	//UINT nState = GetMenuItemState(this, lpDrawItemStruct->itemID, FALSE);



	CRect rcImage(rcItem);

	rcImage.right = rcImage.left + 20 ;

	CRect rcText(rcItem);

	rcText.left = rcText.left + 20 ;



	if(lpDrawItemStruct->itemData==NULL)	return;

	MENU_ITEMINFO *pItemData = (MENU_LPITEMINFO)lpDrawItemStruct->itemData;

	if( pItemData == NULL )	return;



	int nItem = pItemData->nItem ;

	int nMenuID = pItemData->nMenuID;

	int nImage = pItemData->nImage ;

	CString strItemText = pItemData->strItemText;

	CMenu *pMenu = pItemData->pMenu ;



	switch(nMenuID)//因为之前ModiftyMenu时把 顶层菜单ID设为了-2

	{

	case -2://画顶层菜单

		DrawTopItemBk(pDC, rcItem, nState);

		DrawTopItemBorder(pDC, rcItem, nState);

		DrawItemText(pDC, rcItem, strItemText, nState);

		break;



	case -1://画弹出菜单

		DrawItemBk(pDC, rcItem, nState);

		DrawItemBorder(pDC, rcItem, nState);

		DrawItemText(pDC, rcText, strItemText, nState);

		break;



	case 0://画分隔条

		DrawItemSeparate(pDC, rcItem);

		break;



	default://画一般的菜单,包括POP菜单

		DrawItemBk(pDC, rcItem, nState);

		DrawItemBorder(pDC, rcItem, nState);

		DrawItemText(pDC, rcText, strItemText, nState);

		DrawItemImage(pDC, rcImage, nState, nImage);

		break;

	}



	pDC->RestoreDC(nSaveDC);

}

说明，在CMainFrame里无论是主菜单还是pop弹出菜单，都是正常的，但是CXXXView里响应右键菜单后，弹出的菜单全部都没有check, radio, enable(false)等之分。查了资料说是要引入OnInitPopupMenu消息到CView里，然后用CView全局CSFC_Menu变量m_gMenu.InitMenu(pSubMenu)，但还是没效果

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