InPlaceList.cpp
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上传日期:2013-11-19
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- // InPlaceList.cpp : implementation file
- //
- // Written by Chris Maunder (chrismaunder@codeguru.com)
- // Copyright (c) 1998.
- //
- // The code contained in this file is based on the original
- // CInPlaceList from http://www.codeguru.com/listview
- //
- // This code may be used in compiled form in any way you desire. This
- // file may be redistributed unmodified by any means PROVIDING it is
- // not sold for profit without the authors written consent, and
- // providing that this notice and the authors name is included. If
- // the source code in this file is used in any commercial application
- // then acknowledgement must be made to the author of this file
- // (in whatever form you wish).
- //
- // This file is provided "as is" with no expressed or implied warranty.
- // The author accepts no liability for any damage/loss of business that
- // this product may cause.
- //
- // Expect bugs!
- //
- // Please use and enjoy. Please let me know of any bugs/mods/improvements
- // that you have found/implemented and I will fix/incorporate them into this
- // file.
- //
- // 6 Aug 1998 - Added CComboEdit to subclass the edit control - code provided by
- // Roelf Werkman <rdw@inn.nl>. Added nID to the constructor param list.
- // 29 Nov 1998 - bug fix in onkeydown (Markus Irtenkauf)
- //
- /////////////////////////////////////////////////////////////////////////////
- #include "stdafx.h"
- #include "InPlaceList.h"
- #include "GridCtrl.h"
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////////
- // CComboEdit
- CComboEdit::CComboEdit()
- {
- }
- CComboEdit::~CComboEdit()
- {
- }
- // Stoopid win95 accelerator key problem workaround - Matt Weagle.
- BOOL CComboEdit::PreTranslateMessage(MSG* pMsg)
- {
- // Make sure that the keystrokes continue to the appropriate handlers
- if (pMsg->message == WM_KEYDOWN || pMsg->message == WM_KEYUP)
- {
- ::TranslateMessage(pMsg);
- ::DispatchMessage(pMsg);
- return TRUE;
- }
- // Catch the Alt key so we don't choke if focus is going to an owner drawn button
- if (pMsg->message == WM_SYSCHAR)
- return TRUE;
- return CEdit::PreTranslateMessage(pMsg);
- }
- BEGIN_MESSAGE_MAP(CComboEdit, CEdit)
- //{{AFX_MSG_MAP(CComboEdit)
- ON_WM_KILLFOCUS()
- ON_WM_KEYDOWN()
- ON_WM_KEYUP()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CComboEdit message handlers
- void CComboEdit::OnKillFocus(CWnd* pNewWnd)
- {
- CEdit::OnKillFocus(pNewWnd);
-
- CInPlaceList* pOwner = (CInPlaceList*) GetOwner(); // This MUST be a CInPlaceList
- if (pOwner)
- pOwner->EndEdit();
- }
- void CComboEdit::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
- {
- if ((nChar == VK_PRIOR || nChar == VK_NEXT ||
- nChar == VK_DOWN || nChar == VK_UP ||
- nChar == VK_RIGHT || nChar == VK_LEFT) &&
- (GetKeyState(VK_CONTROL) < 0 && GetDlgCtrlID() == IDC_COMBOEDIT))
- {
- CWnd* pOwner = GetOwner();
- if (pOwner)
- pOwner->SendMessage(WM_KEYDOWN, nChar, nRepCnt+ (((DWORD)nFlags)<<16));
- return;
- }
- CEdit::OnKeyDown(nChar, nRepCnt, nFlags);
- }
- void CComboEdit::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
- {
- if (nChar == VK_ESCAPE)
- {
- CWnd* pOwner = GetOwner();
- if (pOwner)
- pOwner->SendMessage(WM_KEYUP, nChar, nRepCnt + (((DWORD)nFlags)<<16));
- return;
- }
- if (nChar == VK_TAB || nChar == VK_RETURN || nChar == VK_ESCAPE)
- {
- CWnd* pOwner = GetOwner();
- if (pOwner)
- pOwner->SendMessage(WM_KEYUP, nChar, nRepCnt + (((DWORD)nFlags)<<16));
- return;
- }
- CEdit::OnKeyUp(nChar, nRepCnt, nFlags);
- }
- /////////////////////////////////////////////////////////////////////////////
- // CInPlaceList
- CInPlaceList::CInPlaceList(CWnd* pParent, CRect& rect, DWORD dwStyle, UINT nID,
- int nRow, int nColumn,
- CStringArray& Items, CString sInitText,
- UINT nFirstChar)
- {
- m_nNumLines = 4;
- m_sInitText = sInitText;
- m_nRow = nRow;
- m_nCol = nColumn;
- m_nLastChar = 0;
- m_bExitOnArrows = FALSE; //(nFirstChar != VK_LBUTTON); // If mouse click brought us here,
- // Create the combobox
- DWORD dwComboStyle = WS_BORDER|WS_CHILD|WS_VISIBLE|WS_VSCROLL|
- CBS_AUTOHSCROLL | dwStyle;
- int nHeight = rect.Height();
- rect.bottom = rect.bottom + m_nNumLines*nHeight + ::GetSystemMetrics(SM_CYHSCROLL);
- if (!Create(dwComboStyle, rect, pParent, nID)) return;
- // Add the strings
- for (int i = 0; i < Items.GetSize(); i++)
- AddString(Items[i]);
- // Get the maximum width of the text strings
- int nMaxLength = 0;
- CClientDC dc(GetParent());
- CFont* pOldFont = dc.SelectObject(pParent->GetFont());
- for (i = 0; i < Items.GetSize(); i++)
- nMaxLength = max(nMaxLength, dc.GetTextExtent(Items[i]).cx);
- nMaxLength += (::GetSystemMetrics(SM_CXVSCROLL) + dc.GetTextExtent(_T(" ")).cx*2);
- dc.SelectObject(pOldFont);
- if (nMaxLength > rect.Width())
- rect.right = rect.left + nMaxLength;
- // Resize the edit window and the drop down window
- MoveWindow(rect);
- SetFont(pParent->GetFont());
- SetItemHeight(-1, nHeight);
- SetDroppedWidth(nMaxLength);
- SetHorizontalExtent(0); // no horz scrolling
- // Set the initial text to m_sInitText
- if (SelectString(-1, m_sInitText) == CB_ERR)
- SetWindowText(m_sInitText); // No text selected, so restore what was there before
- // Subclass the combobox edit control if style includes CBS_DROPDOWN
- if ((dwStyle & CBS_DROPDOWNLIST) != CBS_DROPDOWNLIST)
- {
- m_edit.SubclassDlgItem(IDC_COMBOEDIT, this);
- SetFocus();
- switch (nFirstChar)
- {
- case VK_LBUTTON:
- case VK_RETURN: m_edit.SetSel((int)_tcslen(m_sInitText), -1); return;
- case VK_BACK: m_edit.SetSel((int)_tcslen(m_sInitText), -1); break;
- case VK_DOWN:
- case VK_UP:
- case VK_RIGHT:
- case VK_LEFT:
- case VK_NEXT:
- case VK_PRIOR:
- case VK_HOME:
- case VK_END: m_edit.SetSel(0,-1); return;
- default: m_edit.SetSel(0,-1);
- }
- SendMessage(WM_CHAR, nFirstChar);
- }
- else
- SetFocus();
- }
- CInPlaceList::~CInPlaceList()
- {
- }
- void CInPlaceList::EndEdit()
- {
- CString str;
- GetWindowText(str);
-
- // Send Notification to parent
- GV_DISPINFO dispinfo;
- dispinfo.hdr.hwndFrom = GetSafeHwnd();
- dispinfo.hdr.idFrom = GetDlgCtrlID();
- dispinfo.hdr.code = GVN_ENDLABELEDIT;
-
- dispinfo.item.mask = LVIF_TEXT|LVIF_PARAM;
- dispinfo.item.row = m_nRow;
- dispinfo.item.col = m_nCol;
- dispinfo.item.szText = str;
- dispinfo.item.lParam = (LPARAM) m_nLastChar;
-
- CWnd* pOwner = GetOwner();
- if (IsWindow(pOwner->GetSafeHwnd()))
- pOwner->SendMessage(WM_NOTIFY, GetDlgCtrlID(), (LPARAM)&dispinfo );
-
- // Close this window (PostNcDestroy will delete this)
- PostMessage(WM_CLOSE, 0, 0);
- }
- void CInPlaceList::PostNcDestroy()
- {
- CComboBox::PostNcDestroy();
- delete this;
- }
- BEGIN_MESSAGE_MAP(CInPlaceList, CComboBox)
- //{{AFX_MSG_MAP(CInPlaceList)
- ON_WM_KILLFOCUS()
- ON_WM_KEYDOWN()
- ON_WM_KEYUP()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CInPlaceList message handlers
- void CInPlaceList::OnKillFocus(CWnd* pNewWnd)
- {
- CComboBox::OnKillFocus(pNewWnd);
- if (GetSafeHwnd() == pNewWnd->GetSafeHwnd())
- return;
- // Only end editing on change of focus if we're using the CBS_DROPDOWNLIST style
- if ((GetStyle() & CBS_DROPDOWNLIST) == CBS_DROPDOWNLIST)
- EndEdit();
- }
- // If an arrow key (or associated) is pressed, then exit if
- // a) The Ctrl key was down, or
- // b) m_bExitOnArrows == TRUE
- void CInPlaceList::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
- {
- if ((nChar == VK_PRIOR || nChar == VK_NEXT ||
- nChar == VK_DOWN || nChar == VK_UP ||
- nChar == VK_RIGHT || nChar == VK_LEFT) &&
- (m_bExitOnArrows || GetKeyState(VK_CONTROL) < 0))
- {
- m_nLastChar = nChar;
- GetParent()->SetFocus();
- return;
- }
- CComboBox::OnKeyDown(nChar, nRepCnt, nFlags);
- }
- // Need to keep a lookout for Tabs, Esc and Returns.
- void CInPlaceList::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags)
- {
- if (nChar == VK_ESCAPE)
- SetWindowText(m_sInitText); // restore previous text
- if (nChar == VK_TAB || nChar == VK_RETURN || nChar == VK_ESCAPE)
- {
- m_nLastChar = nChar;
- GetParent()->SetFocus(); // This will destroy this window
- return;
- }
- CComboBox::OnKeyUp(nChar, nRepCnt, nFlags);
- }