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Using CListViewEx in a dialog


DAVISTOD@gw2k.com
Monday, September 09, 1996

Form: Memo
Text: (23 lines follow)
Environment:  VC++ 4.1, Win 95, NT 3.51

I have an old dialog-based application originally developed with VC++ 2.2.  
The dialog had a list box that simulated multiple columns of information 
using tabs.

I'm brushing the dust off of it and would like to make the list box into a 
list control.  However, I would also like to be able to use the type of list 
control that the ROWLIST sample implements, which lets the user 'select' an 
entire row in report mode.

The problem is that ROWLIST uses a class derived from CListView and I'm used 
to placing CListCtrl (or derived types) on my dialogs and form views.  
Obviously, this example has chosen to override some of the painting done in 
order to simulate full row selection.

Is there a way to get this type of list control on my dialog using 
CListViewEx?  Or, if I go with CFormView instead, is it possible to still 
include this extended list control view?  Or should I be looking at a dialog 
bar for the dialog part?  

Todd Davis
Gateway 2000
Use Proportional Font: true


IK 23 -- Cunningham@tgd.swissptt.ch
Tuesday, September 10, 1996

This code is simply taken from the rowlist example all that changes is
that there is no need to get a ListCtrl cause you are already in one.
hth

//-----------------------------------------------------------------------
-
void CExtListCtrl::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
//-----------------------------------------------------------------------
-
{
//	CListCtrl& ListCtrl=GetListCtrl();
	CDC* pDC=CDC::FromHandle(lpDrawItemStruct->hDC);
	CRect rcItem(lpDrawItemStruct->rcItem);
	UINT uiFlags=ILD_TRANSPARENT;
	CImageList* pImageList;
	int nItem=lpDrawItemStruct->itemID;
	BOOL bFocus=(GetFocus()==this);
	COLORREF clrTextSave, clrBkSave;
	COLORREF clrImage=m_clrBkgnd;
	static _TCHAR szBuff[MAX_PATH];
	LPCTSTR pszText;

// get item data

	LV_ITEM lvi;
	lvi.mask=LVIF_TEXT | LVIF_IMAGE | LVIF_STATE;
	lvi.iItem=nItem;
	lvi.iSubItem=0;
	lvi.pszText=szBuff;
	lvi.cchTextMax=sizeof(szBuff);
	lvi.stateMask=0xFFFF;		// get all state flags
	GetItem(&lvi);

	BOOL bSelected=(bFocus || (GetStyle() & LVS_SHOWSELALWAYS)) &&
lvi.state & LVIS_SELECTED;
	bSelected=bSelected || (lvi.state & LVIS_DROPHILITED);

// set colors if item is selected

	CRect rcAllLabels;
	GetItemRect(nItem,rcAllLabels,LVIR_BOUNDS);
	CRect rcLabel;
	GetItemRect(nItem,rcLabel,LVIR_LABEL);
	rcAllLabels.left=rcLabel.left;
	if(m_bClientWidthSel && rcAllLabels.rightSetTextColor(::GetSysColor(COLOR_HIGHLIGHTTEXT));
		clrBkSave=pDC->SetBkColor(::GetSysColor(COLOR_HIGHLIGHT));

		pDC->FillRect(rcAllLabels,&CBrush(::GetSysColor(COLOR_HIGHLIGHT)));
	}
	else
		pDC->FillRect(rcAllLabels,&CBrush(m_clrTextBk));

// set color and mask for the icon

	if(lvi.state & LVIS_CUT)
	{
		clrImage=m_clrBkgnd;
		uiFlags|=ILD_BLEND50;
	}
	else if(bSelected)
	{
		clrImage=::GetSysColor(COLOR_HIGHLIGHT);
		uiFlags|=ILD_BLEND50;
	}

// draw state icon

	UINT nStateImageMask=lvi.state & LVIS_STATEIMAGEMASK;
	if(nStateImageMask)
	{
		int nImage=(nStateImageMask>>12)-1;
		pImageList=GetImageList(LVSIL_STATE);
		if(pImageList)
			pImageList->Draw(pDC,nImage,CPoint(rcItem.left,rcItem.top),ILD_TRANSPA
RENT);
	}

// draw normal and overlay icon

	CRect rcIcon;
	GetItemRect(nItem,rcIcon,LVIR_ICON);

	pImageList=GetImageList(LVSIL_SMALL);
	if(pImageList)
	{
		UINT nOvlImageMask=lvi.state & LVIS_OVERLAYMASK;
		if(rcItem.leftm_hImageList,lvi.iImage,pDC->m_hDC,rcIcon
.left,rcIcon.top,16,16,m_clrBkgnd,clrImage,uiFlags | nOvlImageMask);
	}

// draw item label

	GetItemRect(nItem,rcItem,LVIR_LABEL);
	rcItem.right-=m_cxStateImageOffset;

	pszText=MakeShortString(pDC,szBuff,rcItem.right-rcItem.left,2*OFFSET_FIR
ST);

	rcLabel=rcItem;
	rcLabel.left+=OFFSET_FIRST;
	rcLabel.right-=OFFSET_FIRST;

	pDC->DrawText(pszText,-1,rcLabel,DT_LEFT | DT_SINGLELINE | DT_NOPREFIX
| DT_NOCLIP | DT_VCENTER);

// draw labels for extra columns

	LV_COLUMN lvc;
	lvc.mask=LVCF_FMT | LVCF_WIDTH;

	for(int nColumn=1; GetColumn(nColumn,&lvc); nColumn++)
	{
		rcItem.left=rcItem.right;
		rcItem.right+=lvc.cx;

		int nRetLen=GetItemText(nItem,nColumn,szBuff,sizeof(szBuff));
		if(nRetLen==0) continue;

		pszText=MakeShortString(pDC,szBuff,rcItem.right-rcItem.left,2*OFFSET_OT
HER);

		UINT nJustify=DT_LEFT;

		if(pszText==szBuff)
		{
			switch(lvc.fmt & LVCFMT_JUSTIFYMASK)
			{
			case LVCFMT_RIGHT:
				nJustify=DT_RIGHT;
				break;
			case LVCFMT_CENTER:
				nJustify=DT_CENTER;
				break;
			default:
				break;
			}
		}

		rcLabel=rcItem;
		rcLabel.left+=OFFSET_OTHER;
		rcLabel.right-=OFFSET_OTHER;

		pDC->DrawText(pszText,-1,rcLabel,nJustify | DT_SINGLELINE |
DT_NOPREFIX | DT_NOCLIP | DT_VCENTER);
	}

// draw focus rectangle if item has focus

	if(lvi.state & LVIS_FOCUSED && bFocus)
		pDC->DrawFocusRect(rcAllLabels);

// set original colors if item was selected

	if(bSelected)
	{
	        pDC->SetTextColor(clrTextSave);
		pDC->SetBkColor(clrBkSave);
	}
}



Graham Cunningham
00 41 31 338 0633

>----------
>From: 	DAVISTOD@gw2k.com[SMTP:DAVISTOD@gw2k.com]
>Sent: 	Montag, 9. September 1996 16:45
>To: 	mfc-l@netcom.com
>Subject: 	Using CListViewEx in a dialog
>
>
>Form: Memo
>Text: (23 lines follow)
>Environment:  VC++ 4.1, Win 95, NT 3.51
>
>I have an old dialog-based application originally developed with VC++
>2.2.  
>The dialog had a list box that simulated multiple columns of
>information 
>using tabs.
>
>I'm brushing the dust off of it and would like to make the list box
>into a 
>list control.  However, I would also like to be able to use the type of
>list 
>control that the ROWLIST sample implements, which lets the user
>'select' an 
>entire row in report mode.
>
>The problem is that ROWLIST uses a class derived from CListView and I'm
>used 
>to placing CListCtrl (or derived types) on my dialogs and form views.  
>Obviously, this example has chosen to override some of the painting
>done in 
>order to simulate full row selection.
>
>Is there a way to get this type of list control on my dialog using 
>CListViewEx?  Or, if I go with CFormView instead, is it possible to
>still 
>include this extended list control view?  Or should I be looking at a
>dialog 
>bar for the dialog part?  
>
>Todd Davis
>Gateway 2000
>Use Proportional Font: true
>
>


Sunil -- Sunil.Veluvali@aspect.com
Tuesday, September 10, 1996

[Mini-digest: 2 responses]

>Environment:  VC++ 4.1, Win 95, NT 3.51

      You can modify the CListViewEx class to be derived from CListCtrl.
And, of course, just remove all calls to  
GetListCtrl() function. Then you can place a list control on your dialog
and subclass it to be derived from your CListCtrlEx class.

Hope this helps
Sunil.	

>----------
>From: 	DAVISTOD@gw2k.com[SMTP:DAVISTOD@gw2k.com]
>Sent: 	Monday, September 09, 1996 7:45 AM
>To: 	mfc-l@netcom.com
>Subject: 	Using CListViewEx in a dialog
>
>Form: Memo
>Text: (23 lines follow)
>Environment:  VC++ 4.1, Win 95, NT 3.51
>
>I have an old dialog-based application originally developed with VC++ 2.2.  
>The dialog had a list box that simulated multiple columns of information 
>using tabs.
>
>I'm brushing the dust off of it and would like to make the list box into a 
>list control.  However, I would also like to be able to use the type of list 
>control that the ROWLIST sample implements, which lets the user 'select' an 
>entire row in report mode.
>
>The problem is that ROWLIST uses a class derived from CListView and I'm used 
>to placing CListCtrl (or derived types) on my dialogs and form views.  
>Obviously, this example has chosen to override some of the painting done in 
>order to simulate full row selection.
>
>Is there a way to get this type of list control on my dialog using 
>CListViewEx?  Or, if I go with CFormView instead, is it possible to still 
>include this extended list control view?  Or should I be looking at a dialog 
>bar for the dialog part?  
>
>Todd Davis
>Gateway 2000
>Use Proportional Font: true
>
>
-----From: Dicky Singh 

This may work:
It is probably easy to derive a class from CListCtrl (e.g 
CListCtrlExtended)  and put in the logic from CListView (RowList Sample) in 
it.

To use it, define in .h
CListCtrlExtended  m_ListEx;

In .Cpp in InitDialog for your dialog use:
	m_ListEx.SubclassDlgItem(IDC_LISTCTRL, this);

where IDC_LISTCTRL is a List ctrl in your dialog


BTW: The new ListCtrl from IE4.0/Nashville (You need ComCtl32.h and Lib 
from activeX SDK and ComCtl.dll from IE3.0 to use the features) supports 
(or is supposed to support) full line selection, the way you want.

-Dicky

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