InPlaceEdit.cpp
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- // InPlaceEdit.cpp : implementation file
- //
- // Written by Chris Maunder (chrismaunder@codeguru.com)
- // Copyright (c) 1998.
- //
- // The code contained in this file is based on the original
- // CInPlaceEdit from http://www.codeguru.com/listview/edit_subitems.shtml
- //
- // 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.
- //
- // Modifed 10 May 1998 Uses GVN_ notifications instead of LVN_,
- // Sends notification messages to the parent,
- // instead of the parent's parent.
- //
- // 15 May 1998 There was a problem when editing with the in-place editor,
- // there arises a general protection fault in user.exe, with a
- // few qualifications:
- // (1) This only happens with owner-drawn buttons;
- // (2) This only happens in Win95
- // (3) This only happens if the handler for the button does not
- // create a new window (even an AfxMessageBox will avoid the
- // crash)
- // (4) This will not happen if Spy++ is running.
- // PreTranslateMessage was added to route messages correctly.
- // (Matt Weagle found and fixed this problem)
- // 26 Jul 1998 Removed the ES_MULTILINE style - that fixed a few probs!
- // 6 Aug 1998 Added nID to the constructor param list
- // 6 Sep 1998 Space no longer clears selection when starting edit (Franco Bez)
- // 10 Apr 1999 Enter, Tab and Esc key prob fixed (Koay Kah Hoe)
- // Workaround for bizzare "shrinking window" problem in CE
- //
- /////////////////////////////////////////////////////////////////////////////
- #include "stdafx.h"
- #include "TCHAR.h"
- #include "InPlaceEdit.h"
- #include "GridCtrl.h"
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////////
- // CInPlaceEdit
- CInPlaceEdit::CInPlaceEdit(CWnd* pParent, CRect& rect, DWORD dwStyle, UINT nID,
- int nRow, int nColumn, CString sInitText,
- UINT nFirstChar)
- {
- m_sInitText = sInitText;
- m_nRow = nRow;
- m_nColumn = nColumn;
- m_nLastChar = 0;
- m_bExitOnArrows = (nFirstChar != VK_LBUTTON); // If mouse click brought us here,
- // then no exit on arrows
- m_Rect = rect; // For bizarre CE bug.
-
- DWORD dwEditStyle = WS_BORDER|WS_CHILD|WS_VISIBLE| ES_AUTOHSCROLL //|ES_MULTILINE
- | dwStyle;
- if (!Create(dwEditStyle, rect, pParent, nID)) return;
-
- SetFont(pParent->GetFont());
-
- SetWindowText(sInitText);
- SetFocus();
-
- switch (nFirstChar){
- case VK_LBUTTON:
- case VK_RETURN: SetSel((int)_tcslen(m_sInitText), -1); return;
- case VK_BACK: SetSel((int)_tcslen(m_sInitText), -1); break;
- case VK_TAB:
- case VK_DOWN:
- case VK_UP:
- case VK_RIGHT:
- case VK_LEFT:
- case VK_NEXT:
- case VK_PRIOR:
- case VK_HOME:
- case VK_SPACE:
- case VK_END: SetSel(0,-1); return;
- default: SetSel(0,-1);
- }
-
- SendMessage(WM_CHAR, nFirstChar);
- }
- CInPlaceEdit::~CInPlaceEdit()
- {
- }
- BEGIN_MESSAGE_MAP(CInPlaceEdit, CEdit)
- //{{AFX_MSG_MAP(CInPlaceEdit)
- ON_WM_KILLFOCUS()
- ON_WM_CHAR()
- ON_WM_KEYDOWN()
- ON_WM_GETDLGCODE()
- ON_WM_CREATE()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- ////////////////////////////////////////////////////////////////////////////
- // CInPlaceEdit message handlers
- // If an arrow key (or associated) is pressed, then exit if
- // a) The Ctrl key was down, or
- // b) m_bExitOnArrows == TRUE
- void CInPlaceEdit::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;
- }
-
- CEdit::OnKeyDown(nChar, nRepCnt, nFlags);
- }
- // As soon as this edit loses focus, kill it.
- void CInPlaceEdit::OnKillFocus(CWnd* pNewWnd)
- {
- CEdit::OnKillFocus(pNewWnd);
- EndEdit();
- }
- void CInPlaceEdit::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
- {
- if (nChar == VK_TAB || nChar == VK_RETURN)
- {
- m_nLastChar = nChar;
- GetParent()->SetFocus(); // This will destroy this window
- return;
- }
- if (nChar == VK_ESCAPE)
- {
- SetWindowText(m_sInitText); // restore previous text
- m_nLastChar = nChar;
- GetParent()->SetFocus();
- return;
- }
-
- CEdit::OnChar(nChar, nRepCnt, nFlags);
-
- // Resize edit control if needed
-
- // Get text extent
- CString str;
- GetWindowText( str );
- // add some extra buffer
- str += _T(" ");
-
- CWindowDC dc(this);
- CFont *pFontDC = dc.SelectObject(GetFont());
- CSize size = dc.GetTextExtent( str );
- dc.SelectObject( pFontDC );
-
- // Get client rect
- CRect ParentRect;
- GetParent()->GetClientRect( &ParentRect );
-
- // Check whether control needs to be resized
- // and whether there is space to grow
- if (size.cx > m_Rect.Width())
- {
- if( size.cx + m_Rect.left < ParentRect.right )
- m_Rect.right = m_Rect.left + size.cx;
- else
- m_Rect.right = ParentRect.right;
- MoveWindow( &m_Rect );
- }
- }
- UINT CInPlaceEdit::OnGetDlgCode()
- {
- return DLGC_WANTALLKEYS;
- }
- ////////////////////////////////////////////////////////////////////////////
- // CInPlaceEdit overrides
- // Stoopid win95 accelerator key problem workaround - Matt Weagle.
- BOOL CInPlaceEdit::PreTranslateMessage(MSG* pMsg)
- {
- // 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 CWnd::PreTranslateMessage(pMsg);
- }
- // Auto delete
- void CInPlaceEdit::PostNcDestroy()
- {
- CEdit::PostNcDestroy();
-
- delete this;
- }
- ////////////////////////////////////////////////////////////////////////////
- // CInPlaceEdit implementation
- void CInPlaceEdit::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_nColumn;
- dispinfo.item.szText = str;
- dispinfo.item.lParam = (LPARAM) m_nLastChar;
-
- CWnd* pOwner = GetOwner();
- if (pOwner)
- pOwner->SendMessage(WM_NOTIFY, GetDlgCtrlID(), (LPARAM)&dispinfo );
-
- // Close this window (PostNcDestroy will delete this)
- PostMessage(WM_CLOSE, 0, 0);
- }