商业编程-源码-带文字与颜色编辑功能的列表控件.zip

// ListCtrlEx.cpp : implementation file // #include "stdafx.h" #include "ClassList.h" #include "ListCtrlEx.h" #include "ListCellEdit.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CListCtrlEx CListCtrlEx::CListCtrlEx() { } CListCtrlEx::~CListCtrlEx() { } BEGIN_MESSAGE_MAP(CListCtrlEx, CListCtrl) //{{AFX_MSG_MAP(CListCtrlEx) ON_NOTIFY_REFLECT(NM_CUSTOMDRAW, OnCustomDraw) ON_WM_LBUTTONDOWN() ON_WM_VSCROLL() ON_WM_HSCROLL() ON_WM_SIZE() ON_NOTIFY_REFLECT(LVN_ENDLABELEDIT, OnEndlabeledit) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////// // CListCtrlEx message handlers // OnCustomDraw void CListCtrlEx::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; if(nSubItem == 2) //颜色框 { COLORREF clr = GetItemData(nItem); CDC* pDC = CDC::FromHandle(pLVCD->nmcd.hdc); CRect rect; GetSubItemRect(nItem, nSubItem, LVIR_BOUNDS, rect); rect.bottom -= 1; rect.left += 1; pDC->Rectangle(rect); rect.DeflateRect(1,1); pDC->FillSolidRect(&rect, clr); *pResult = CDRF_SKIPDEFAULT; // We've painted everything. } } } void CListCtrlEx::OnLButtonDown(UINT nFlags, CPoint point) { CListCtrl::OnLButtonDown(nFlags, point); // TODO: Add your message handler code here and/or call default int nItem; int nSubItem; if ((nItem = HitTestEx (point, nSubItem)) != -1) { if(nSubItem == 1) //地物名称 { EditSubItem(nItem, nSubItem); } else if(nSubItem == 2) //颜色栏 { CColorDialog dlg; if(dlg.DoModal() == IDOK) { COLORREF clr = dlg.GetColor(); SetItemData(nItem, clr); } } } } int CListCtrlEx::HitTestEx (CPoint& Point, int& nSubItem) { nSubItem = 0; int ColumnNum = 0; int Row = HitTest (Point, NULL); // Make sure that the ListView is in LVS_REPORT if ((GetWindowLong (m_hWnd, GWL_STYLE) & LVS_TYPEMASK) != LVS_REPORT) return Row; // Get the top and bottom row visible Row = GetTopIndex(); int Bottom = Row + GetCountPerPage(); if (Bottom > GetItemCount()) Bottom = GetItemCount(); // Get the number of columns CHeaderCtrl* pHeader = (CHeaderCtrl*) GetDlgItem(0); int nColumnCount = pHeader->GetItemCount(); // Loop through the visible rows for(; Row <= Bottom; Row++) { // Get bounding rect of item and check whether point falls in it. CRect Rect; GetItemRect (Row, &Rect, LVIR_BOUNDS); if (Rect.PtInRect (Point)) { // Now find the column for (ColumnNum = 0; ColumnNum < nColumnCount; ColumnNum++) { int ColWidth = GetColumnWidth (ColumnNum); if (Point.x >= Rect.left && Point.x <= (Rect.left + ColWidth)) { nSubItem = ColumnNum; return Row; } Rect.left += ColWidth; } } } return -1; } CEdit* CListCtrlEx::EditSubItem(int nItem, int nSubItem) { // The returned pointer should not be saved // Make sure that the item is visible if (!EnsureVisible (nItem, TRUE)) return NULL; // Make sure that nCol is valid CHeaderCtrl* pHeader = (CHeaderCtrl*) GetDlgItem(0); int nColumnCount = pHeader->GetItemCount(); if (nSubItem >= nColumnCount || GetColumnWidth (nSubItem) < 5) return NULL; // Get the column offset int Offset = 0; for (int iColumn = 0; iColumn < nSubItem; iColumn++) Offset += GetColumnWidth (iColumn); CRect Rect; GetItemRect (nItem, &Rect, LVIR_BOUNDS); // Now scroll if we need to expose the column CRect ClientRect; GetClientRect (&ClientRect); if (Offset + Rect.left < 0 || Offset + Rect.left > ClientRect.right) { CSize Size; if (Offset + Rect.left > 0) Size.cx = -(Offset - Rect.left); else Size.cx = Offset - Rect.left; Size.cy = 0; Scroll (Size); Rect.left -= Size.cx; } // Get nSubItem alignment LV_COLUMN lvCol; lvCol.mask = LVCF_FMT; GetColumn (nSubItem, &lvCol); DWORD dwStyle; if ((lvCol.fmt & LVCFMT_JUSTIFYMASK) == LVCFMT_LEFT) dwStyle = ES_LEFT; else if ((lvCol.fmt & LVCFMT_JUSTIFYMASK) == LVCFMT_RIGHT) dwStyle = ES_RIGHT; else dwStyle = ES_CENTER; Rect.left += Offset+4; Rect.right = Rect.left + GetColumnWidth (nSubItem) - 3; if (Rect.right > ClientRect.right) Rect.right = ClientRect.right; dwStyle |= WS_BORDER | WS_CHILD | WS_VISIBLE | ES_AUTOHSCROLL; CEdit *pEdit = new CListCellEdit (nItem, nSubItem, GetItemText (nItem, nSubItem)); pEdit->Create (dwStyle, Rect, this, IDC_EDITCELL); return pEdit; } void CListCtrlEx::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) { // TODO: Add your message handler code here and/or call default if (GetFocus() != this) SetFocus(); CListCtrl::OnVScroll(nSBCode, nPos, pScrollBar); } void CListCtrlEx::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) { // TODO: Add your message handler code here and/or call default if (GetFocus() != this) SetFocus(); CListCtrl::OnHScroll(nSBCode, nPos, pScrollBar); } void CListCtrlEx::OnSize(UINT nType, int cx, int cy) { CListCtrl::OnSize(nType, cx, cy); // TODO: Add your message handler code here } void CListCtrlEx::OnEndlabeledit(NMHDR* pNMHDR, LRESULT* pResult) { LV_DISPINFO *plvDispInfo = (LV_DISPINFO *)pNMHDR; LV_ITEM *plvItem = &plvDispInfo->item; if (plvItem->pszText != NULL) { SetItemText (plvItem->iItem, plvItem->iSubItem, plvItem->pszText); } *pResult = FALSE; }