MFC中CListCtrl添加多行提示类

一、CListCtrl添加多行提示类

//ToolTipListCtrl.h

#pragma once// CToolTipListCtrlclass CToolTipListCtrl : public CListCtrl{DECLARE_DYNAMIC(CToolTipListCtrl)public:CToolTipListCtrl();virtual ~CToolTipListCtrl();virtual int OnToolHitTest(CPoint point, TOOLINFO * pTI) const;protected:virtual afx_msg BOOL OnToolTipText( UINT id, NMHDR * pNMHDR, LRESULT *  pResult );virtual void PreSubclassWindow();DECLARE_MESSAGE_MAP()private:CString m_strToolTipText;//Item提示信息};

//ToolTipListCtrl.cpp

#include "stdafx.h"#include "ToolTipListCtrl.h"#include <atlconv.h>// CToolTipListCtrlIMPLEMENT_DYNAMIC(CToolTipListCtrl, CListCtrl)CToolTipListCtrl::CToolTipListCtrl(){}CToolTipListCtrl::~CToolTipListCtrl(){}BEGIN_MESSAGE_MAP(CToolTipListCtrl, CListCtrl)ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTW, 0, 0xFFFF, OnToolTipText)ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTA, 0, 0xFFFF, OnToolTipText)END_MESSAGE_MAP()// CToolTipListCtrl 消息处理程序void CToolTipListCtrl::PreSubclassWindow(){CListCtrl::PreSubclassWindow();// Disable the CToolTipCtrl of CListCtrl so it won't disturb our own tooltip-ctrlGetToolTips()->Activate(FALSE);}int CToolTipListCtrl::OnToolHitTest(CPoint point, TOOLINFO * pTI) const {//See if the point falls onto a list item//UINT nFlags = 0;LVHITTESTINFO lvhitTestInfo;lvhitTestInfo.pt = point;int nItem = ListView_SubItemHitTest(this->m_hWnd,&lvhitTestInfo);int nSubItem = lvhitTestInfo.iSubItem;UINT nFlags =   lvhitTestInfo.flags;//nFlags is 0 if the SubItemHitTest fails//Therefore, 0 & <anything> will equal falseif (nFlags & LVHT_ONITEMLABEL){//If it did fall on a list item,//and it was also hit one of the//item specific sub-areas we wish to show tool tips for//Get the client (area occupied by this controlRECT rcClient;GetClientRect( &rcClient );//Fill in the TOOLINFO structurepTI->hwnd = m_hWnd;pTI->uId = (UINT) (nItem * 100 + nSubItem);pTI->lpszText = LPSTR_TEXTCALLBACK;pTI->rect = rcClient;return pTI->uId; //By returning a unique value per listItem,//we ensure that when the mouse moves over another list item,//the tooltip will change}else{//Otherwise, we aren't interested, so let the message propagatereturn -1;}}BOOL CToolTipListCtrl::OnToolTipText( UINT id, NMHDR * pNMHDR, LRESULT * pResult ){//VC6.0则用下面这句//_AFX_THREAD_STATE* pThreadState = AfxGetThreadState();//VC2003则用这句AFX_MODULE_THREAD_STATE* pThreadState = AfxGetModuleThreadState();CToolTipCtrl *pToolTip = pThreadState->m_pToolTip;pToolTip->SetMaxTipWidth(500);//Handle both ANSI and UNICODE versions of the messageTOOLTIPTEXTA* pTTTA = (TOOLTIPTEXTA*)pNMHDR;TOOLTIPTEXTW* pTTTW = (TOOLTIPTEXTW*)pNMHDR;if( (pNMHDR->idFrom == (UINT)m_hWnd) &&( ((pNMHDR->code == TTN_NEEDTEXTA) && (pTTTA->uFlags & TTF_IDISHWND)) ||((pNMHDR->code == TTN_NEEDTEXTW) && (pTTTW->uFlags & TTF_IDISHWND)) ) ){return FALSE;}*pResult = 0;//Get the mouse positionconst MSG* pMessage;pMessage = GetCurrentMessage();ASSERT ( pMessage );CPoint pt;pt = pMessage->pt; //Get the point from the messageScreenToClient( &pt );LVHITTESTINFO lvhitTestInfo;lvhitTestInfo.pt = pt;int nItem = SubItemHitTest(&lvhitTestInfo);int nSubItem = lvhitTestInfo.iSubItem;UINT nFlags =   lvhitTestInfo.flags;if( nFlags & LVHT_ONITEMLABEL ){//设置提示信息显示的内容m_strToolTipText = GetItemText(nItem,nSubItem);//pTTTA->lpszText = (LPSTR)(LPCSTR)m_strToolTipText;//releas 会出现乱码，用下面方式替换char szMsg[512] = {0};strcpy(szMsg,m_strToolTipText.GetBuffer());pTTTA->lpszText = szMsg;m_strToolTipText.ReleaseBuffer();USES_CONVERSION;pTTTW->lpszText = A2W(m_strToolTipText);return FALSE; }return FALSE;}

二、CListCtrl内嵌ToolTipCtrl自定义提示类
//ListCtrl_OwnToolTipCtrl.h

#pragma once#include "ListCtrl_ToolTip.h"class CListCtrl_OwnToolTipCtrl : public CListCtrl_ToolTip{int m_LastToolTipCol;int m_LastToolTipRow;CToolTipCtrl m_OwnToolTipCtrl;virtual void PreSubclassWindow();virtual BOOL PreTranslateMessage(MSG* pMsg);afx_msg void OnMouseMove(UINT nFlags, CPoint point);afx_msg BOOL OnToolNeedText(UINT id, NMHDR* pNMHDR, LRESULT* pResult);DECLARE_MESSAGE_MAP();public:CListCtrl_OwnToolTipCtrl():m_LastToolTipCol(-1),m_LastToolTipRow(-1){}};

//ListCtrl_OwnToolTipCtrl.cpp

#include "stdafx.h"#include "ListCtrl_OwnToolTipCtrl.h"// Maintain our own CToolTipCtrlBEGIN_MESSAGE_MAP(CListCtrl_OwnToolTipCtrl, CListCtrl_OwnToolTipCtrl)ON_WM_MOUSEMOVE()ON_NOTIFY_EX(TTN_NEEDTEXTA, 0, OnToolNeedText)ON_NOTIFY_EX(TTN_NEEDTEXTW, 0, OnToolNeedText)END_MESSAGE_MAP()void CListCtrl_OwnToolTipCtrl::PreSubclassWindow(){CListCtrl_ToolTip::PreSubclassWindow();// Disable the CToolTipCtrl of CListCtrl so it won't disturb our own tooltip-ctrlGetToolTips()->Activate(FALSE);// Enable our own tooltip-ctrl and make it show tooltip even if not having focusVERIFY( m_OwnToolTipCtrl.Create(this, TTS_ALWAYSTIP) );m_OwnToolTipCtrl.Activate(TRUE);}BOOL CListCtrl_OwnToolTipCtrl::PreTranslateMessage(MSG* pMsg){if (m_OwnToolTipCtrl.m_hWnd)m_OwnToolTipCtrl.RelayEvent(pMsg);return CListCtrl::PreTranslateMessage(pMsg);}void CListCtrl_OwnToolTipCtrl::OnMouseMove(UINT nFlags, CPoint point){CPoint pt(GetMessagePos());ScreenToClient(&pt);// Find the subitemLVHITTESTINFO hitinfo = {0};hitinfo.flags = nFlags;hitinfo.pt = pt;SubItemHitTest(&hitinfo);if (m_LastToolTipCol!=hitinfo.iSubItem || m_LastToolTipRow!=hitinfo.iItem){// Mouse moved over a new cellm_LastToolTipCol = hitinfo.iSubItem;m_LastToolTipRow = hitinfo.iItem;// Remove the old tooltip (if available)if (m_OwnToolTipCtrl.GetToolCount()>0){m_OwnToolTipCtrl.DelTool(this);m_OwnToolTipCtrl.Activate(FALSE);}// Add the new tooltip (if available)if (m_LastToolTipRow!=-1 && m_LastToolTipRow!=-1){// Not using CToolTipCtrl::AddTool() because it redirects the messages to CListCtrl parentTOOLINFO ti = {0};ti.cbSize = sizeof(TOOLINFO);ti.uFlags = TTF_IDISHWND;// Indicate that uId is handle to a controlti.uId = (UINT_PTR)m_hWnd;// Handle to the controlti.hwnd = m_hWnd;// Handle to window to receive the tooltip-messagesti.hinst = AfxGetInstanceHandle();ti.lpszText = LPSTR_TEXTCALLBACK;m_OwnToolTipCtrl.SendMessage(TTM_ADDTOOL, 0, (LPARAM) (LPTOOLINFO) &ti);m_OwnToolTipCtrl.Activate(TRUE);}}CListCtrl::OnMouseMove(nFlags, point);}BOOL CListCtrl_OwnToolTipCtrl::OnToolNeedText(UINT id, NMHDR* pNMHDR, LRESULT* pResult){return CListCtrl_ToolTip::OnToolNeedText(id, pNMHDR, pResult);}//ListCtrl_ToolTip.h#pragma onceclass CListCtrl_ToolTip : public CListCtrl{public:afx_msg BOOL OnToolNeedText(UINT id, NMHDR* pNMHDR, LRESULT* pResult);virtual void PreSubclassWindow();void CellHitTest(const CPoint& pt, int& nRow, int& nCol) const;bool ShowToolTip(const CPoint& pt) const;CString GetToolTipText(int nRow, int nCol);};//ListCtrl_ToolTip.cpp#include "stdafx.h"#include "CListCtrl_ToolTip.h"void CListCtrl_ToolTip::CellHitTest(const CPoint& pt, int& nRow, int& nCol) const{nRow = -1;nCol = -1;LVHITTESTINFO lvhti = {0};lvhti.pt = pt;nRow = ListView_SubItemHitTest(m_hWnd, &lvhti);// SubItemHitTest is non-constnCol = lvhti.iSubItem;if (!(lvhti.flags & LVHT_ONITEMLABEL))nRow = -1;}BOOL CListCtrl_ToolTip::OnToolNeedText(UINT id, NMHDR* pNMHDR, LRESULT* pResult){CPoint pt(GetMessagePos());ScreenToClient(&pt);int nRow, nCol;CellHitTest(pt, nRow, nCol);CString tooltip = GetToolTipText(nRow, nCol);if (tooltip.IsEmpty())return FALSE;// Non-unicode applications can receive requests for tooltip-text in unicodeTOOLTIPTEXTA* pTTTA = (TOOLTIPTEXTA*)pNMHDR;TOOLTIPTEXTW* pTTTW = (TOOLTIPTEXTW*)pNMHDR;#ifndef _UNICODEif (pNMHDR->code == TTN_NEEDTEXTA)lstrcpyn(pTTTA->szText, static_cast<LPCTSTR>(tooltip), sizeof(pTTTA->szText));else_mbstowcs(pTTTW->szText, static_cast<LPCTSTR>(tooltip), sizeof(pTTTW->szText)/sizeof(WCHAR));#elseif (pNMHDR->code == TTN_NEEDTEXTA)_wcstombsz(pTTTA->szText, static_cast<LPCTSTR>(tooltip), sizeof(pTTTA->szText));elselstrcpyn(pTTTW->szText, static_cast<LPCTSTR>(tooltip), sizeof(pTTTW->szText)/sizeof(WCHAR));#endif// If wanting to display a tooltip which is longer than 80 characters,// then one must allocate the needed text-buffer instead of using szText,// and point the TOOLTIPTEXT::lpszText to this text-buffer.// When doing this, then one is required to release this text-buffer againreturn TRUE;}bool CListCtrl_ToolTip::ShowToolTip(const CPoint& pt) const{// Lookup up the cellint nRow, nCol;CellHitTest(pt, nRow, nCol);if (nRow!=-1 && nCol!=-1)return true;elsereturn false;}CString CListCtrl_ToolTip::GetToolTipText(int nRow, int nCol){if (nRow!=-1 && nCol!=-1)return GetItemText(nRow, nCol);// Cell-ToolTipelsereturn CString("");}namespace {LRESULT EnableWindowTheme(HWND hwnd, LPCWSTR classList, LPCWSTR subApp, LPCWSTR idlist){LRESULT lResult = S_FALSE;HMODULE hinstDll;BOOL (WINAPI *pIsThemeActive)();HRESULT (WINAPI *pSetWindowTheme)(HWND hwnd, LPCWSTR pszSubAppName, LPCWSTR pszSubIdList);HANDLE (WINAPI *pOpenThemeData)(HWND hwnd, LPCWSTR pszClassList);HRESULT (WINAPI *pCloseThemeData)(HANDLE hTheme);// Check if running on Windows XP or newerhinstDll = ::LoadLibrary(_T("UxTheme.dll"));if (hinstDll){// Check if theme service is running(FARPROC&)pIsThemeActive = ::GetProcAddress( hinstDll, "IsThemeActive" );if( pIsThemeActive && pIsThemeActive() ){(FARPROC&)pOpenThemeData = ::GetProcAddress(hinstDll, "OpenThemeData");(FARPROC&)pCloseThemeData = ::GetProcAddress(hinstDll, "CloseThemeData");(FARPROC&)pSetWindowTheme = ::GetProcAddress(hinstDll, "SetWindowTheme");if (pSetWindowTheme && pOpenThemeData && pCloseThemeData){// Check is themes is available for the applicationHANDLE hTheme = pOpenThemeData(hwnd,classList);if (hTheme!=NULL){VERIFY(pCloseThemeData(hTheme)==S_OK);// Enable Windows Theme StylelResult = pSetWindowTheme(hwnd, subApp, idlist);}}}::FreeLibrary(hinstDll);}return lResult;}}void CListCtrl_ToolTip::PreSubclassWindow(){CListCtrl::PreSubclassWindow();// Focus retangle is not painted properly without double-buffering#if (_WIN32_WINNT >= 0x501)SetExtendedStyle(LVS_EX_DOUBLEBUFFER | GetExtendedStyle());#endifSetExtendedStyle(GetExtendedStyle() | LVS_EX_FULLROWSELECT);SetExtendedStyle(GetExtendedStyle() | LVS_EX_HEADERDRAGDROP);SetExtendedStyle(GetExtendedStyle() | LVS_EX_GRIDLINES);// Enable Vista-look if possibleEnableWindowTheme(m_hWnd, L"ListView", L"Explorer", NULL);}