envi-code/SourceCode/Code2026/MFCCtrl/PropCtrl.cpp

// CPropCtrl.cpp : implementation file
//
//  Copyright (C) 1998-2001 Scott Ramsay
//	sramsay@gonavi.com
//	http://www.gonavi.com
//
//  This material is provided "as is", with absolutely no warranty expressed
//  or implied. Any use is at your own risk.
// 
//  Permission to use or copy this software for any purpose is hereby granted 
//  without fee, provided the above notices are retained on all copies.
//  Permission to modify the code and to distribute modified code is granted,
//  provided the above notices are retained, and a notice that the code was
//  modified is included with the above copyright notice.
// 
//	If you use this code, drop me an email.  I'd like to know if you find the code
//	useful.

#include "stdafx.h"
#include "PropCtrl.h"

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

#define PROPTREEITEM_EXPANDCOLUMN		16			// width of the expand column
// #define PROPTREEITEM_COLRNG				5			// width of splitter

static AFX_EXTENSION_MODULE CPropDLL = {NULL, NULL};
static const CString strOfficeFontName	= _T("Tahoma");
static const CString strDefaultFontName = _T("MS Sans Serif");

static int CALLBACK FontFamilyProcFonts(const LOGFONT FAR* lplf, const TEXTMETRIC FAR*, ULONG, LPARAM)
{
	ASSERT(lplf != NULL);
	CString strFont = lplf->lfFaceName;
	return strFont.CollateNoCase (strOfficeFontName) == 0 ? 0 : 1;
}

/////////////////////////////////////////////////////////////////////////////
// CPropCtrl

UINT CPropCtrl::s_nInstanceCount;
CFont* CPropCtrl::s_pNormalFont;
CFont* CPropCtrl::s_pBoldFont;
CPropItem* CPropCtrl::s_pFound;

CPropCtrl::CPropCtrl() :
	m_bShowInfo(TRUE),
	m_nInfoHeight(50),
	m_pVisbleList(NULL),
	m_Origin(100,0),
	m_nLastUID(1),
	m_pFocus(NULL),
	m_bDisableInput(FALSE)
{
	m_Root.Expand();

	// init global resources only once
	if (!s_nInstanceCount)
		InitGlobalResources();
	s_nInstanceCount++;
}


CPropCtrl::~CPropCtrl()
{
	DeleteAllItems();

	s_nInstanceCount--;

	// free global resource when ALL CPropCtrls are destroyed
	if (!s_nInstanceCount)
		FreeGlobalResources();
}


BEGIN_MESSAGE_MAP(CPropCtrl, CWnd)
	//{{AFX_MSG_MAP(CPropCtrl)
	ON_WM_CREATE()
	ON_WM_SIZE()
	ON_WM_ENABLE()
	ON_WM_SYSCOLORCHANGE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


/////////////////////////////////////////////////////////////////////////////
// CPropCtrl message handlers

const POINT& CPropCtrl::GetOrigin()
{
	return m_Origin;
}

BOOL CPropCtrl::Create(CWnd* pParentWnd, UINT nID)
{
	if (NULL == pParentWnd)
		return FALSE;
	
	CRect r;
	CWnd* pWnd = pParentWnd->GetDlgItem(nID);
	if (NULL != pWnd)
	{
		pWnd->GetWindowRect(&r);
		pParentWnd->ScreenToClient(&r);
		pWnd->DestroyWindow();
	}

	DWORD dwStyle = WS_VISIBLE|WS_CHILD;
	return Create(dwStyle, r,  pParentWnd, nID);
}

BOOL CPropCtrl::Create(DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID)
{
	CWnd* pWnd = this;

	LPCTSTR pszCreateClass = AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW, ::LoadCursor(NULL, IDC_ARROW));
	
	return pWnd->Create(pszCreateClass, _T(""), dwStyle, rect, pParentWnd, nID);
}

int CPropCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	DWORD dwStyle;
	CRect rc;
	
	GetClientRect(rc);

	// create CPropList

	dwStyle = WS_VISIBLE|WS_CHILD|WS_VSCROLL;

	if (!m_List.Create(dwStyle, rc, this, 100))
	{
		TRACE0("Failed to create CPropGrid\n");
		return -1;
	}

	m_List.SetPropOwner(this);

	// create CCPropInfo
	dwStyle &= ~WS_VSCROLL;

	if (!m_Info.Create(_T(""), dwStyle, rc, this))
	{
		TRACE0("Failed to create CPropGridInfo\n");
		return -1;
	}

	m_Info.SetPropOwner(this);

	return 0;
}


CWnd* CPropCtrl::GetCtrlParent()
{
	return &m_List;
}

void CPropCtrl::OnSize(UINT nType, int cx, int cy) 
{
	CWnd::OnSize(nType, cx, cy);
	ResizeChildWindows(cx, cy);

	CPropItem* pItem = GetFocusedItem();
	if (NULL != pItem)
	{
		if (pItem->m_nItemType == ITEMTYPE_EDIT)
		{
			pItem->CreateButton((CPropItemEdit*)pItem);
			pItem->CreateSpinCtrl((CPropItemEdit*)pItem);
		}
		else if (pItem->m_nItemType == ITEMTYPE_COMBOBOX)
		{
			pItem->CreateButton((CPropItemCombo*)pItem);
			pItem->CreateSpinCtrl((CPropItemEdit*)pItem);
		}
	}
}

void CPropCtrl::ResizeChildWindows(int cx, int cy)
{
	if (m_bShowInfo)
	{
		if (IsWindow(m_List.m_hWnd))
			m_List.MoveWindow(0, 0, cx, cy - m_nInfoHeight);

		if (IsWindow(m_Info.m_hWnd)){
			m_Info.MoveWindow(0, cy - m_nInfoHeight, cx, m_nInfoHeight);
			m_Info.ShowWindow(SW_SHOW);
		}
	}
	else
	{
		if (IsWindow(m_List.m_hWnd))
			m_List.MoveWindow(0, 0, cx, cy);

		if (IsWindow(m_Info.m_hWnd))
			m_Info.ShowWindow(SW_HIDE);
	}
}

void CPropCtrl::InitGlobalResources()
{
	LOGFONT lf;
	ZeroMemory ((PVOID) &lf,sizeof (LOGFONT));

	CWnd* pWnd = AfxGetMainWnd();
	if (pWnd != NULL)
	{
		CFont* pFont = pWnd->GetFont();
		if (pFont != NULL)
		{
			pFont->GetLogFont(&lf);
		}
		else
		{
			int nFontSize = -16;
			CString strFontName = _T("Arial");

			CFont fnt;
			fnt.CreateFont(nFontSize, 0,0,0, FW_NORMAL, 0,0,0, DEFAULT_CHARSET,
				OUT_CHARACTER_PRECIS, CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY,
				DEFAULT_PITCH | FF_DONTCARE, strFontName);
			fnt.GetLogFont(&lf);
		}
	}
	else
	{
		NONCLIENTMETRICS nm;

		//modify by xlc on 090902 R18添加菜单崩溃
	#if ADS<18
		nm.cbSize = sizeof (NONCLIENTMETRICS);
	#else
		nm.cbSize = sizeof(NONCLIENTMETRICS) - sizeof(nm.iPaddedBorderWidth); 
	#endif
		VERIFY(SystemParametersInfo(SPI_GETNONCLIENTMETRICS,nm.cbSize,&nm,0)); 

		lf = nm.lfMenuFont;
	}

	s_pNormalFont = new CFont;
	s_pNormalFont->CreateFontIndirect(&lf);

	lf.lfWeight = FW_BOLD;
	s_pBoldFont = new CFont;
	s_pBoldFont->CreateFontIndirect(&lf);
}


void CPropCtrl::FreeGlobalResources()
{
	if (s_pNormalFont)
	{
		delete s_pNormalFont;
		s_pNormalFont = NULL;
	}

	if (s_pBoldFont)
	{
		delete s_pBoldFont;
		s_pBoldFont = NULL;
	}
}


CFont* CPropCtrl::GetNormalFont()
{
	return s_pNormalFont;
}


CFont* CPropCtrl::GetBoldFont()
{
	return s_pBoldFont;
}


CPropItem* CPropCtrl::GetFocusedItem()
{
	return m_pFocus;
}


CPropItem* CPropCtrl::GetRootItem()
{
	return &m_Root;
}


void CPropCtrl::ClearVisibleList()
{
	m_pVisbleList = NULL;
}


CPropItem* CPropCtrl::GetVisibleList()
{
	return m_pVisbleList;
}


void CPropCtrl::AddToVisibleList(CPropItem* pItem)
{
	if (!pItem)
		return;

	// check for an empty visible list
	if (!m_pVisbleList)
		m_pVisbleList = pItem;
	else
	{
		// Add the new item to the end of the list
		CPropItem* pNext;

		pNext = m_pVisbleList;
		while (pNext->GetNextVisible())
			pNext = pNext->GetNextVisible();

		pNext->SetNextVisible(pItem);
	}

	pItem->SetNextVisible(NULL);
}


BOOL CPropCtrl::EnumItems(CPropItem* pItem, ENUMPROPITEMPROC proc, LPARAM lParam)
{
	if (!pItem || !proc)
		return FALSE;

	CPropItem* pNext;

	// don't count the root item in any enumerations
	if (pItem!=&m_Root && !proc(this, pItem, lParam))
		return FALSE;

	// recurse thru all child items
	pNext = pItem->GetChild();

	while (pNext)
	{
		if (!EnumItems(pNext, proc, lParam))
			return FALSE;

		pNext = pNext->GetSibling();
	}

	return TRUE;
}


void CPropCtrl::SetOriginOffset(LONG nOffset)
{
	m_Origin.y = nOffset;
}

	
void CPropCtrl::UpdatedItems()
{
	if (!IsWindow(m_hWnd))
		return;

	Invalidate();

	m_List.UpdateResize();
	m_List.Invalidate();
}


void CPropCtrl::DeleteAllItems()
{
	Delete(NULL);
	if (m_List.m_pBt != NULL)
		m_List.m_pBt->ShowWindow(SW_HIDE);

	UpdatedItems();
	m_nLastUID = 1; // reset uid counter
}


void CPropCtrl::DeleteItem(CPropItem* pItem)
{
	Delete(pItem);
	UpdatedItems();
}


LONG CPropCtrl::GetColumn()
{
	return m_Origin.x;
}


void CPropCtrl::SetColumn(LONG nColumn)
{
	CRect rc;

	GetClientRect(rc);
	
	if (rc.IsRectEmpty())
		nColumn = __max(PROPTREEITEM_EXPANDCOLUMN, nColumn);
	else
		nColumn = __min(__max(PROPTREEITEM_EXPANDCOLUMN, nColumn), rc.Width() - PROPTREEITEM_EXPANDCOLUMN);

	m_Origin.x = nColumn;

	Invalidate();
}


void CPropCtrl::Delete(CPropItem* pItem)
{
	if (pItem && pItem!=&m_Root && SendNotify(PTN_DELETEITEM, pItem))
		return;

	// passing in a NULL item is the same as calling DeleteAllItems
	if (!pItem)
		pItem = &m_Root;

	// delete children

	CPropItem* pIter;
	CPropItem* pNext;

	pIter = pItem->GetChild();
	while (pIter)
	{
		pNext = pIter->GetSibling();
		DeleteItem(pIter);
		pIter = pNext;
	}

	// unlink from tree
	if (pItem->GetParent())
	{
		if (pItem->GetParent()->GetChild()==pItem)
			pItem->GetParent()->SetChild(pItem->GetSibling());
		else
		{
			pIter = pItem->GetParent()->GetChild();
			while (pIter->GetSibling() && pIter->GetSibling()!=pItem)
				pIter = pIter->GetSibling();

			if (pIter->GetSibling())
				pIter->SetSibling(pItem->GetSibling());
		}
	}

	if (pItem!=&m_Root)
	{
		if (pItem==GetFocusedItem())
			SetFocusedItem(NULL);
		if (pItem == GetVisibleList())
			ClearVisibleList();
		delete pItem;
	}
}


void CPropCtrl::SetFocusedItem(CPropItem* pItem)
{
	m_pFocus = pItem;
	EnsureVisible(m_pFocus);

	if (!IsWindow(m_hWnd))
		return;

	Invalidate();
}


void CPropCtrl::ShowInfoText(BOOL bShow)
{
	m_bShowInfo = bShow;

	CRect rc;

	GetClientRect(rc);
	ResizeChildWindows(rc.Width(), rc.Height());
}

void CPropCtrl::SetInfoHeigh( int nHeigh )
{
	m_nInfoHeight = nHeigh;
}

BOOL CPropCtrl::IsItemVisible(CPropItem* pItem)
{
	if (!pItem)
		return FALSE;

	for (CPropItem* pNext = m_pVisbleList; pNext; pNext = pNext->GetNextVisible())
	{
		if (pNext==pItem)
			return TRUE;
	}

	return FALSE;
}


void CPropCtrl::EnsureVisible(CPropItem* pItem)
{
	if (!pItem)
		return;

	// item is not scroll visible (expand all parents)
	if (!IsItemVisible(pItem))
	{
		CPropItem* pParent;

		pParent = pItem->GetParent();
		while (pParent)
		{
			pParent->Expand();
			pParent = pParent->GetParent();
		}

		UpdatedItems();
		UpdateWindow();
	}

	ASSERT(IsItemVisible(pItem));

	CRect rc;

	m_List.GetClientRect(rc);
	rc.OffsetRect(0, m_Origin.y);
	rc.bottom -= pItem->GetHeight();

	CPoint pt;

	pt = pItem->GetLocation();

	if (!rc.PtInRect(pt))
	{
		LONG oy;

		if (pt.y < rc.top)
			oy = pt.y;
		else
			oy = pt.y - rc.Height() + pItem->GetHeight();

		m_List.OnVScroll(SB_THUMBTRACK, oy, NULL);
	}
}


CPropItem* CPropCtrl::InsertItem(CPropItem* pItem, CPropItem* pParent)
{
	if (!pItem)
		return NULL;

	if (!pParent)
		pParent = &m_Root;

	if (!pParent->GetChild())
		pParent->SetChild(pItem);
	else
	{
		// add to end of the sibling list
		CPropItem* pNext;

		pNext = pParent->GetChild();
		while (pNext->GetSibling())
			pNext = pNext->GetSibling();

		pNext->SetSibling(pItem);
	}

	pItem->SetParent(pParent);
	pItem->SetPropOwner(this);

	// auto generate a default ID
	pItem->SetCtrlID(m_nLastUID++);

	SendNotify(PTN_INSERTITEM, pItem);

	UpdatedItems();

	return pItem;
}



LONG CPropCtrl::HitTest(const POINT& pt)
{
	POINT p = pt;

	CPropItem* pItem;

	// convert screen to tree coordinates
	p.y += m_Origin.y;

	if ((pItem = FindItem(pt))!=NULL)
	{
//		if (pItem->HitButton(p))
//			return HTBUTTON;

		if (!pItem->IsRootLevel() && pt.x >= m_Origin.x - PROPTREEITEM_COLRNG && pt.x <= m_Origin.x + PROPTREEITEM_COLRNG)
			return HTCOLUMN;

		if (pt.x > m_Origin.x + PROPTREEITEM_COLRNG)
			return HTATTRIBUTE;

		if (pItem->HitExpand(p))
			return HTEXPAND;

		if (pItem->HitCheckBox(p))
			return HTCHECKBOX;
	
		return HTLABEL;
	}

	return HTCLIENT;
}


CPropItem* CPropCtrl::FindItem(const POINT& pt)
{
	CPropItem* pItem;

	CPoint p = pt;

	// convert screen to tree coordinates
	p.y += m_Origin.y;

	// search the visible list for the item
	for (pItem = m_pVisbleList; pItem; pItem = pItem->GetNextVisible())
	{
		CPoint ipt = pItem->GetLocation();
		if (p.y>=ipt.y && p.y<ipt.y + pItem->GetHeight())
			return pItem;
	}

	return NULL;
}


CPropItem* CPropCtrl::FindItem(UINT nCtrlID)
{
	s_pFound = NULL;

	EnumItems(&m_Root, EnumFindItem, nCtrlID);

	return s_pFound;
}

CPropItem* CPropCtrl::FindItem( const CString &csLable )
{
	return EnumFindItem(GetRootItem(), csLable);
}

CPropItem* CPropCtrl::EnumFindItem(CPropItem* pItem, const CString &csLable )
{
	CPropItem* pGetItem = NULL;
	CPropItem* pItemSon = NULL;
	CString csNowLable;
	while (pItem)
	{
		csNowLable = pItem->GetLabelText();
		if (csNowLable == csLable)
			return pItem;

		pItemSon = pItem->GetChild();
		if (pItemSon != NULL)
		{
			pGetItem = EnumFindItem(pItemSon, csLable);
			if (NULL != pGetItem)
				return pGetItem;
		}

		pItem = pItem->GetSibling();
	}

	return NULL;
}

BOOL CALLBACK CPropCtrl::EnumFindItem(CPropCtrl*, CPropItem* pItem, LPARAM lParam)
{
	ASSERT(pItem!=NULL);

	if (pItem->GetCtrlID()==(UINT)lParam)
	{
		s_pFound = pItem;
		return FALSE;
	}

	return TRUE;
}


BOOL CPropCtrl::IsDisableInput()
{
	return m_bDisableInput;
}


void CPropCtrl::DisableInput(BOOL bDisable)
{
	m_bDisableInput = bDisable;

	CWnd* pWnd;

	if ((pWnd = GetParent())!=NULL)
		pWnd->EnableWindow(!bDisable);
}


void CPropCtrl::SelectItems(CPropItem* pItem, BOOL bSelect)
{
	if (!pItem)
		pItem = &m_Root;

	EnumItems(pItem, EnumSelectAll, (LPARAM)bSelect);
}


CPropItem* CPropCtrl::FocusFirst()
{
	CPropItem *pold;

	pold = m_pFocus;

	SetFocusedItem(m_pVisbleList);

	if (m_pFocus)
	{
		SelectItems(NULL, FALSE);
		m_pFocus->Select();
	}

	if (pold!=m_pFocus)
		SendNotify(PTN_SELCHANGE, m_pFocus);

	return m_pFocus;
}


CPropItem* CPropCtrl::FocusLast()
{
	CPropItem* pNext;
	CPropItem* pChange;

	pChange = m_pFocus;

	pNext = m_pVisbleList;

	if (pNext)
	{
		while (pNext->GetNextVisible())
			pNext = pNext->GetNextVisible();

		SetFocusedItem(pNext);

		if (m_pFocus)
		{
			SelectItems(NULL, FALSE);
			m_pFocus->Select();
		}
	}

	if (pChange!=m_pFocus)
		SendNotify(PTN_SELCHANGE, m_pFocus);

	return pNext;
}


CPropItem* CPropCtrl::FocusPrev()
{
	CPropItem* pNext;
	CPropItem* pChange;

	pChange = m_pFocus;

	if (m_pFocus==NULL)
	{
		// get the last visible item
		pNext = m_pVisbleList;
		while (pNext && pNext->GetNextVisible())
			pNext = pNext->GetNextVisible();
	}
	else
	{
		pNext = m_pVisbleList;
		while (pNext && pNext->GetNextVisible()!=m_pFocus)
			pNext = pNext->GetNextVisible();
	}

	if (pNext)
		SetFocusedItem(pNext);
	
	if (m_pFocus)
	{
		SelectItems(NULL, FALSE);
		m_pFocus->Select();
	}

	if (pChange!=m_pFocus)
		SendNotify(PTN_SELCHANGE, m_pFocus);

	return pNext;
}


CPropItem* CPropCtrl::FocusNext()
{
	CPropItem* pNext;
	CPropItem* pChange;

	pChange = m_pFocus;

	if (m_pFocus==NULL)
		pNext = m_pVisbleList;
	else
	if (m_pFocus->GetNextVisible())
		pNext = m_pFocus->GetNextVisible();
	else
		pNext = NULL;

	if (pNext)
		SetFocusedItem(pNext);

	if (m_pFocus)
	{
		SelectItems(NULL, FALSE);
		m_pFocus->Select();
	}

	if (pChange!=m_pFocus)
		SendNotify(PTN_SELCHANGE, m_pFocus);

	return pNext;
}


void CPropCtrl::UpdateMoveAllItems()
{
	EnumItems(&m_Root, EnumMoveAll);
}


void CPropCtrl::RefreshItems(CPropItem* pItem)
{
	if (!pItem)
		pItem = &m_Root;

	EnumItems(pItem, EnumRefreshAll);

	UpdatedItems();
}


BOOL CALLBACK CPropCtrl::EnumSelectAll(CPropCtrl*, CPropItem* pItem, LPARAM lParam)
{
	if (!pItem)
		return FALSE;

	pItem->Select((BOOL)lParam);

	return TRUE;
}


BOOL CALLBACK CPropCtrl::EnumRefreshAll(CPropCtrl*, CPropItem* pItem, LPARAM)
{
	if (!pItem)
		return FALSE;

	pItem->OnRefresh();

	return TRUE;
}


BOOL CALLBACK CPropCtrl::EnumMoveAll(CPropCtrl*, CPropItem* pItem, LPARAM)
{
	if (!pItem)
		return FALSE;

	pItem->OnMove();

	return TRUE;
}


LRESULT CPropCtrl::SendNotify(UINT nNotifyCode, CPropItem* pItem)
{
	if (!IsWindow(m_hWnd))
		return 0L;

	if (!(GetStyle() & PTS_NOTIFY))
		return 0L;

	NMPROPTREE nmmp;
	LPNMHDR lpnm;

	lpnm = NULL;

	switch (nNotifyCode)
	{
		case PTN_INSERTITEM:
		case PTN_DELETEITEM:
		case PTN_DELETEALLITEMS:
		case PTN_ITEMCHANGED:
		case PTN_ITEMBUTTONCLICK:
		case PTN_SELCHANGE:
		case PTN_ITEMEXPANDING:
		case PTN_COLUMNCLICK:
		case PTN_PROPCLICK:
		case PTN_CHECKCLICK:
			lpnm = (LPNMHDR)&nmmp;
			nmmp.pItem = pItem;
			break;
	}

	if (lpnm)
	{
		UINT id = (UINT)::GetMenu(m_hWnd);
		lpnm->code = nNotifyCode;
		lpnm->hwndFrom = m_hWnd;
		lpnm->idFrom = id;
	
		return GetParent()->SendMessage(nNotifyCode, (WPARAM)id, (LPARAM)lpnm);
	}

	return 0L;
}


void CPropCtrl::OnEnable(BOOL bEnable) 
{
	CWnd::OnEnable(bEnable);
	Invalidate();
}


void CPropCtrl::OnSysColorChange() 
{
	CWnd::OnSysColorChange();
	
	Invalidate();	
}

BOOL CPropCtrl::IsSingleSelection()
{
	// right now only support single selection
	return TRUE;
}


/*----------------------------------------------------------------------------*
* 描述:  让表格中所有为只读
* 备注:  
-----------------------------------------------------------------------------*/
void CPropCtrl::ReadOnly(CPropItem* pItem, BOOL bRead)
{
	if (NULL == pItem)
		return;

	while (pItem != NULL)
	{
		pItem->ReadOnly(bRead);
		CPropItem* pItemSon = pItem->GetChild();
		ReadOnly(pItemSon, bRead);
	
		pItem =pItem->GetSibling();
	}
}

void CPropCtrl::ShowVSrolBar( BOOL bShow /*= TRUE*/ )
{
	m_List.ShowVScrolBar(bShow);
}