CListCtrl扩展类示例CXListCtrlTest（VC6.0）

// XListCtrl.cpp Version 1.3 // // Author: Hans Dietrich // hdietrich2@hotmail.com // // This code is based on "Neat Stuff to do in List Controls Using Custom Draw" // by Michael Dunn. See http://www.codeproject.com/listctrl/lvcustomdraw.asp // // Thanks to David Patrick for pointing out how to subclass header control // if CXListCtrl is created via Create() instead of via dialog template. // // This software is released into the public domain. // You are free to use it in any way you like. // // This software is provided "as is" with no expressed // or implied warranty. I accept no liability for any // damage or loss of business that this software may cause. // /////////////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "XListCtrl.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif UINT NEAR WM_XLISTCTRL_COMBO_SELECTION = ::RegisterWindowMessage(_T("WM_XLISTCTRL_COMBO_SELECTION")); UINT NEAR WM_XLISTCTRL_CHECKBOX_CLICKED = ::RegisterWindowMessage(_T("WM_XLISTCTRL_CHECKBOX_CLICKED")); ///////////////////////////////////////////////////////////////////////////// // CXListCtrl BEGIN_MESSAGE_MAP(CXListCtrl, CListCtrl) //{{AFX_MSG_MAP(CXListCtrl) ON_NOTIFY_REFLECT_EX(NM_CLICK, OnClick) ON_NOTIFY_REFLECT_EX(LVN_COLUMNCLICK, OnColumnClick) ON_WM_CREATE() ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw) ON_WM_DESTROY() ON_WM_LBUTTONDOWN() ON_WM_PAINT() ON_WM_SYSCOLORCHANGE() //}}AFX_MSG_MAP #ifndef DO_NOT_INCLUDE_XCOMBOLIST ON_WM_TIMER() ON_REGISTERED_MESSAGE(WM_XCOMBOLIST_VK_ESCAPE, OnComboEscape) ON_REGISTERED_MESSAGE(WM_XCOMBOLIST_VK_RETURN, OnComboReturn) ON_REGISTERED_MESSAGE(WM_XCOMBOLIST_KEYDOWN, OnComboKeydown) ON_REGISTERED_MESSAGE(WM_XCOMBOLIST_LBUTTONUP, OnComboLButtonUp) #endif #ifndef NO_XLISTCTRL_TOOL_TIPS ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTW, 0, 0xFFFF, OnToolTipText) ON_NOTIFY_EX_RANGE(TTN_NEEDTEXTA, 0, 0xFFFF, OnToolTipText) #endif END_MESSAGE_MAP() /////////////////////////////////////////////////////////////////////////////// // ctor CXListCtrl::CXListCtrl() { #ifndef DO_NOT_INCLUDE_XCOMBOLIST m_bComboIsClicked = FALSE; m_nComboItem = 0; m_nComboSubItem = 0; m_pListBox = NULL; m_bFontIsCreated = FALSE; m_strInitialComboString = _T(""); #endif m_dwExtendedStyleX = 0; m_bHeaderIsSubclassed = FALSE; m_cr3DFace = ::GetSysColor(COLOR_3DFACE); m_cr3DHighLight = ::GetSysColor(COLOR_3DHIGHLIGHT); m_cr3DShadow = ::GetSysColor(COLOR_3DSHADOW); m_crBtnFace = ::GetSysColor(COLOR_BTNFACE); m_crBtnShadow = ::GetSysColor(COLOR_BTNSHADOW); m_crBtnText = ::GetSysColor(COLOR_BTNTEXT); m_crGrayText = ::GetSysColor(COLOR_GRAYTEXT); m_crHighLight = ::GetSysColor(COLOR_HIGHLIGHT); m_crHighLightText = ::GetSysColor(COLOR_HIGHLIGHTTEXT); m_crWindow = ::GetSysColor(COLOR_WINDOW); m_crWindowText = ::GetSysColor(COLOR_WINDOWTEXT); } /////////////////////////////////////////////////////////////////////////////// // dtor CXListCtrl::~CXListCtrl() { #ifndef DO_NOT_INCLUDE_XCOMBOLIST if (m_pListBox) delete m_pListBox; #endif } /////////////////////////////////////////////////////////////////////////////// // PreSubclassWindow void CXListCtrl::PreSubclassWindow() { CListCtrl::PreSubclassWindow(); // for Dialog based applications, this is a good place // to subclass the header control because the OnCreate() // function does not get called. SubclassHeaderControl(); } /////////////////////////////////////////////////////////////////////////////// // OnCreate int CXListCtrl::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (CListCtrl::OnCreate(lpCreateStruct) == -1) { ASSERT(FALSE); return -1; } // When the CXListCtrl object is created via a call to Create(), instead // of via a dialog box template, we must subclass the header control // window here because it does not exist when the PreSubclassWindow() // function is called. SubclassHeaderControl(); return 0; } /////////////////////////////////////////////////////////////////////////////// // SubclassHeaderControl void CXListCtrl::SubclassHeaderControl() { if (m_bHeaderIsSubclassed) return; // if the list control has a header control window, then // subclass it // Thanks to Alberto Gattegno and Alon Peleg��and their article // "A Multiline Header Control Inside a CListCtrl" for easy way // to determine if the header control exists. CHeaderCtrl* pHeader = GetHeaderCtrl(); if (pHeader) { VERIFY(m_HeaderCtrl.SubclassWindow(pHeader->m_hWnd)); m_bHeaderIsSubclassed = TRUE; } } /////////////////////////////////////////////////////////////////////////////// // OnClick BOOL CXListCtrl::OnClick(NMHDR*, LRESULT* pResult) { #ifndef DO_NOT_INCLUDE_XCOMBOLIST UnpressComboButton(); #endif *pResult = 0; return FALSE; // return FALSE to send message to parent also - // NOTE: MSDN documentation is incorrect } /////////////////////////////////////////////////////////////////////////////// // OnCustomDraw void CXListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult) { NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>(pNMHDR); // Take the default processing unless we set this to something else below. *pResult = CDRF_DODEFAULT; // First thing - check the draw stage. If it's the control's prepaint // stage, then tell Windows we want messages for every item. if (pLVCD->nmcd.dwDrawStage == CDDS_PREPAINT) { *pResult = CDRF_NOTIFYITEMDRAW; } else if (pLVCD->nmcd.dwDrawStage == CDDS_ITEMPREPAINT) { // This is the notification message for an item. We'll request // notifications before each subitem's prepaint stage. *pResult = CDRF_NOTIFYSUBITEMDRAW; } else if (pLVCD->nmcd.dwDrawStage == (CDDS_ITEMPREPAINT | CDDS_SUBITEM)) { // This is the prepaint stage for a subitem. Here's where we set the // item's text and background colors. Our return value will tell // Windows to draw the subitem itself, but it will use the new colors // we set here. int nItem = static_cast<int> (pLVCD->nmcd.dwItemSpec); int nSubItem = pLVCD->iSubItem; XLISTCTRLDATA *pXLCD = (XLISTCTRLDATA *) pLVCD->nmcd.lItemlParam; ASSERT(pXLCD); COLORREF crText = m_crWindowText; COLORREF crBkgnd = m_crWindow; if (pXLCD) { crText = pXLCD[nSubItem].crText; crBkgnd = pXLCD[nSubItem].crBackground; if (!pXLCD[0].bEnabled) crText = m_crGrayText; } // store the colors back in the NMLVCUSTOMDRAW struct pLVCD->clrText = crText; pLVCD->clrTextBk = crBkgnd; CDC* pDC = CDC::FromHandle(pLVCD->nmcd.hdc); CRect rect; GetSubItemRect(nItem, nSubItem, LVIR_BOUNDS, rect); if (pXLCD && (pXLCD[nSubItem].bShowProgress)) { DrawProgress(nItem, nSubItem, pDC, crText, crBkgnd, rect, pXLCD); *pResult = CDRF_SKIPDEFAULT; // We've painted everything. } #ifndef DO_NOT_INCLUDE_XCOMBOLIST else if (pXLCD && (pXLCD[nSubItem].bCombo)) { if (GetItemState(nItem, LVIS_SELECTED)) DrawComboBox(nItem, nSubItem, pDC, crText, crBkgnd, rect, pXLCD); else DrawText(nItem, nSubItem, pDC, crText, crBkgnd, rect, pXLCD); *pResult = CDRF_SKIPDEFAULT; // We've painted everything. } #endif else if (pXLCD && (pXLCD[nSubItem].nCheckedState != -1)) { DrawCheckbox(nItem, nSubItem, pDC, crText, crBkgnd, rect, pXLCD); *pResult = CDRF_SKIPDEFAULT; // We've painted everything. } else { rect.left += DrawImage(nItem, nSubItem, pDC, crText, crBkgnd, rect, pXLCD); DrawText(nItem, nSubItem, pDC, crText, crBkgnd, rect, pXLCD); *pResult = CDRF_SKIPDEFAULT; // We've painted everything.