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Visual C++

GridCtrl.cpp：源码内容

// GridCtrl.cpp : implementation file
//
// MFC Grid Control v2.20
//
// Written by Chris Maunder <cmaunder@mail.com>
//
// The code contained in this file is based on the original
// WorldCom Grid control written by Joe Willcoxson,
// mailto:chinajoe@aol.com
// http://users.aol.com/chinajoe
// (These addresses may be out of date) The code has gone through
// so many modifications that I'm not sure if there is even a single
// original line of code. In any case Joe's code was a great
// framework on which to build.
//
// 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 and all copyright
// notices remains intact.
//
// An email letting me know how you are using it would be nice as well.
//
// 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, and let me know of any bugs/mods/improvements
// that you have found/implemented and I will fix/incorporate them into
// this file.
//
// History:
// --------
// This control is constantly evolving, sometimes due to new features that I
// feel are necessary, and sometimes due to existing bugs. Where possible I
// have credited the changes to those who contributed code corrections or
// enhancements (names in brackets) or code suggestions (suggested by...)
//
// 1.0 - 1.13 20 Feb 1998 - 6 May 1999
// First release version. Progressed from being a basic
// grid based on the original WorldCom Grid control
// written by Joe Willcoxson (mailto:chinajoe@aol.com,
// http://users.aol.com/chinajoe) to something a little
// more feature rich. Rewritten so many times I doubt
// there is a single line of Joe's code left. Many, many,
// MANY people sent in bug reports and fixes. Thank you
// all.
//
// 2.0 1 Feb 2000
// Rewritten to make the grid more object oriented, in
// that the CGridCell class now takes care of cell-specific
// tasks. This makes the code more robust, but more
// importantly it allows the simple insertion of other
// types of cells.
//
// 2.01 20 Feb 2000 - Eric Woodruff
// Added better support for printing grids and
// also fixed some other minor problems.
//
// 2.02 29 Feb 2000 - Brian V. Shifrin, Scot Reed,
// Fixes to reduce flicker, fix font selection bug,
// Fixed SetFixed[Row/Col]Count bug
//
// 2.03 28 Mar 2000 - Aqiruse (marked with //FNA)
// Titletips now use cell color
//
// 2.10 11 Mar 2000 - Ken Bertelson and Chris Maunder
// - Additions for virtual CGridCell support of embedded tree
// & cell buttons implementation
// - Optional WYSIWYG printing
// - Awareness of hidden (0 width/height) rows and columns for
// key movements, cut, copy, paste, and autosizing
// - CGridCell can make title tips display any text rather than
// cell text only
// - Minor vis bug fixes
// - CGridCtrl now works with CGridCellBase instead of CGridCell
// This is a taste of things to come.
//
// 2.11 19 May 2000 - Chris Maunder
// - Increasing fixed cells clashed with selected cells (Ivan Ilinov)
// - AutoSizeRows obvous bug fixed
// - OnLButtonDown fix (Ken Bertelson)
// - ExpandToFit bug fixed (scrollbar space) (Igor Proskuriakov)
// - List mode selection/deselection fixed
// - Keyboard cell movement improved. You can now see the cells!
// - m_nBarState MS madness fixed (Phil K)
//
// 2.12 26 May 2000 - Martin Richter
// - If using TRY/CATCH (winCE) instead of try/catch (win32),
// e->Delete is not called
// - EnsureVisible "fix" was fixed properly.
//
// 2.20 30 Jul 2000 - Chris Maunder
// - Font storage optimised (suggested by Martin Richter)
// - AutoSizeColumn works on either column header, data or both
// - EnsureVisible. The saga continues... (Ken)
// - Rewrote exception handling
// - Added TrackFocusCell and FrameFocusCell properties, as well as
// ExpandLastColumn (suggested by Bruce E. Stemplewski).
// - InsertColumn now allows you to insert columns at the end of the
// column range (David Weibel)
// - Shift-cell-selection more intuitive
// - API change: Set/GetGridColor now Set/GetGridLineColor
// - API change: Set/GetBkColor now Set/GetGridBkColor
// - API change: Set/GetTextColor, Set/GetTextBkColor depricated
// - API change: Set/GetFixedTextColor, Set/GetFixedBkColor depricated
// - Stupid DDX_GridControl workaround removed.
// - Added "virtual mode" via Set/GetVirtualMode
// - Added SetCallbackFunc to allow callback functions in virtual mode
// - Added Set/GetAutoSizeStyle
// - AutoSize() bug fixed
// - added GVIS_FIXEDROW, GVIS_FIXEDCOL states
// - added Get/SetFixed[Row|Column]Selection
// - cell "Get" methods now const'd. Sorry folks...
// - GetMouseScrollLines now uses win98/W2K friendly code
// - WS_EX_CLIENTEDGE style now implicit
//
// TODO: 1) Implement sparse grids (super easy now)
// 2) Fix it so that as you drag select, the speed of selection increases
// with time.
// 3) Scrolling is still a little dodgy (too much grey area). I know there
// is a simple fix but it's been a low priority
// 4) Get some sleep
//
// ISSUES: 1) Crashes in the HPC/Pro emulation - but works fine on a device. ???
//
/////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "MemDC.h"
#include "GridCtrl.h"
// OLE stuff for clipboard operations
#include <afxadv.h> // For CSharedFile
#include <afxconv.h> // For LPTSTR -> LPSTR macros
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
// Spit out some messages as a sanity check for programmers
#ifdef GRIDCONTROL_NO_TITLETIPS
#pragma message(" -- CGridCtrl: No titletips for cells with large data")
#endif
#ifdef GRIDCONTROL_NO_DRAGDROP
#pragma message(" -- CGridCtrl: No OLE drag and drop")
#endif
#ifdef GRIDCONTROL_NO_CLIPBOARD
#pragma message(" -- CGridCtrl: No clipboard support")
#endif
#ifdef GRIDCONTROL_NO_PRINTING
#pragma message(" -- CGridCtrl: No printing support")
#endif
IMPLEMENT_DYNCREATE(CGridCtrl, CWnd)
// Get the number of lines to scroll with each mouse wheel notch
// Why doesn't windows give us this function???
UINT GetMouseScrollLines()
{
int nScrollLines = 3; // reasonable default
#ifndef _WIN32_WCE
// Do things the hard way in win95
OSVERSIONINFO VersionInfo;
VersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (!GetVersionEx(&VersionInfo) ||
(VersionInfo.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS && VersionInfo.dwMinorVersion == 0))
{
HKEY hKey;
if (RegOpenKeyEx(HKEY_CURRENT_USER, _T("Control Panel\Desktop"),
0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
{
TCHAR szData[128];
DWORD dwKeyDataType;
DWORD dwDataBufSize = sizeof(szData);
if (RegQueryValueEx(hKey, _T("WheelScrollLines"), NULL, &dwKeyDataType,
(LPBYTE) &szData, &dwDataBufSize) == ERROR_SUCCESS)
{
nScrollLines = _tcstoul(szData, NULL, 10);
}
RegCloseKey(hKey);
}
}
// win98 or greater
else
SystemParametersInfo (SPI_GETWHEELSCROLLLINES, 0, &nScrollLines, 0);
#endif
return nScrollLines;
}
/////////////////////////////////////////////////////////////////////////////
// CGridCtrl
CGridCtrl::CGridCtrl(int nRows, int nCols, int nFixedRows, int nFixedCols)
{
RegisterWindowClass();
// Initialize OLE libraries
m_bMustUninitOLE = FALSE;
#if !defined(GRIDCONTROL_NO_DRAGDROP) || !defined(GRIDCONTROL_NO_CLIPBOARD)
_AFX_THREAD_STATE* pState = AfxGetThreadState();
if (!pState->m_bNeedTerm)
{
SCODE sc = ::OleInitialize(NULL);
if (FAILED(sc))
AfxMessageBox(_T("OLE initialization failed. Make sure that the OLE libraries are the correct version"));
else
m_bMustUninitOLE = TRUE;
}
#endif
// Store the system colours in case they change. The gridctrl uses
// these colours, and in OnSysColorChange we can check to see if
// the gridctrl colours have been changed from the system colours.
// If they have, then leave them, otherwise change them to reflect
// the new system colours.
m_crWindowText = ::GetSysColor(COLOR_WINDOWTEXT);
m_crWindowColour = ::GetSysColor(COLOR_WINDOW);
m_cr3DFace = ::GetSysColor(COLOR_3DFACE);
m_crShadow = ::GetSysColor(COLOR_3DSHADOW);
m_crGridLineColour = RGB(192,192,192);
m_nRows = 0;
m_nCols = 0;
m_nFixedRows = 0;
m_nFixedCols = 0;
m_bVirtualMode = FALSE;
m_pfnCallback = NULL;
m_nVScrollMax = 0; // Scroll position
m_nHScrollMax = 0;
m_nRowsPerWheelNotch = GetMouseScrollLines(); // Get the number of lines
// per mouse wheel notch to scroll
m_nBarState = GVL_NONE;
m_MouseMode = MOUSE_NOTHING;
m_nGridLines = GVL_BOTH;
m_bEditable = TRUE;
m_bListMode = FALSE;
m_bSingleRowSelection = FALSE;
m_bSingleColSelection = FALSE;
m_bMouseButtonDown = FALSE;
m_bAllowDraw = TRUE; // allow draw updates
m_bEnableSelection = TRUE;
m_bFixedColumnSelection = TRUE;
m_bFixedRowSelection = TRUE;
m_bAllowRowResize = TRUE;
m_bAllowColumnResize = TRUE;
m_bSortOnClick = FALSE; // Sort on header row click
m_bHandleTabKey = TRUE;
#ifdef _WIN32_WCE
m_bDoubleBuffer = FALSE; // Use double buffering to avoid flicker?
#else
m_bDoubleBuffer = TRUE; // Use double buffering to avoid flicker?
#endif
m_bTitleTips = TRUE; // show cell title tips
m_bWysiwygPrinting = FALSE; // use size-to-width printing
m_bHiddenColUnhide = TRUE; // 0-width columns can be expanded via mouse
m_bHiddenRowUnhide = TRUE; // 0-Height rows can be expanded via mouse
m_bAllowColHide = TRUE; // Columns can be contracted to 0-width via mouse
m_bAllowRowHide = TRUE; // Rows can be contracted to 0-height via mouse
m_bAscending = TRUE; // sorting stuff
m_nSortColumn = -1;
m_nAutoSizeColumnStyle = GVS_BOTH; // Autosize grid using header and data info
m_nTimerID = 0; // For drag-selection
m_nTimerInterval = 25; // (in milliseconds)
m_nResizeCaptureRange = 3; // When resizing columns/row, the cursor has to be
// within +/-3 pixels of the dividing line for
// resizing to be possible
m_pImageList = NULL; // Images in the grid
m_bAllowDragAndDrop = FALSE; // for drag and drop - EFW - off by default
m_bTrackFocusCell = TRUE; // Track Focus cell?
m_bFrameFocus = TRUE; // Frame the selected cell?
m_pRtcDefault = RUNTIME_CLASS(CGridCell);
SetupDefaultCells();
SetGridBkColor(m_crShadow);
// Set up the initial grid size
SetRowCount(nRows);
SetColumnCount(nCols);
SetFixedRowCount(nFixedRows);
SetFixedColumnCount(nFixedCols);
SetTitleTipTextClr(CLR_DEFAULT); //FNA
SetTitleTipBackClr(CLR_DEFAULT);
// set initial selection range (ie. none)
m_SelectedCellMap.RemoveAll();
m_PrevSelectedCellMap.RemoveAll();
#if !defined(_WIN32_WCE_NO_PRINTING) && !defined(GRIDCONTROL_NO_PRINTING)
// EFW - Added to support shaded/unshaded printout and
// user-definable margins.
m_bShadedPrintOut = TRUE;
SetPrintMarginInfo(2, 2, 4, 4, 1, 1, 1);
#endif
}
CGridCtrl::~CGridCtrl()
{
DeleteAllItems();
#ifndef GRIDCONTROL_NO_TITLETIPS
if (m_bTitleTips && ::IsWindow(m_TitleTip.GetSafeHwnd()))
m_TitleTip.DestroyWindow();
#endif
DestroyWindow();
#if !defined(GRIDCONTROL_NO_DRAGDROP) || !defined(GRIDCONTROL_NO_CLIPBOARD)
// BUG FIX - EFW
COleDataSource *pSource = COleDataSource::GetClipboardOwner();
if(pSource)
COleDataSource::FlushClipboard();
// Uninitialize OLE support
if (m_bMustUninitOLE)
::OleUninitialize();
#endif
}
// Register the window class if it has not already been registered.
BOOL CGridCtrl::RegisterWindowClass()
{
WNDCLASS wndcls;
HINSTANCE hInst = AfxGetInstanceHandle();
//HINSTANCE hInst = AfxGetResourceHandle();
if (!(::GetClassInfo(hInst, GRIDCTRL_CLASSNAME, &wndcls)))
{
// otherwise we need to register a new class
wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
wndcls.lpfnWndProc = ::DefWindowProc;
wndcls.cbClsExtra = wndcls.cbWndExtra = 0;
wndcls.hInstance = hInst;
wndcls.hIcon = NULL;
#ifndef _WIN32_WCE_NO_CURSOR
wndcls.hCursor = AfxGetApp()->LoadStandardCursor(IDC_ARROW);
#else
wndcls.hCursor = 0;
#endif
wndcls.hbrBackground = (HBRUSH) (COLOR_3DFACE + 1);
wndcls.lpszMenuName = NULL;
wndcls.lpszClassName = GRIDCTRL_CLASSNAME;
if (!AfxRegisterClass(&wndcls))
{
AfxThrowResourceException();
return FALSE;
}
}
return TRUE;
}
BOOL CGridCtrl::Initialise()
{
// Stop re-entry problems
static BOOL bInProcedure = FALSE;
if (bInProcedure)
return FALSE;
bInProcedure = TRUE;
#ifndef GRIDCONTROL_NO_DRAGDROP
m_DropTarget.Register(this);
#endif
#ifndef GRIDCONTROL_NO_TITLETIPS
m_TitleTip.SetParentWnd(this);
#endif
if (::IsWindow(m_hWnd))
ModifyStyleEx(0, WS_EX_CLIENTEDGE, 0);
bInProcedure = FALSE;
return TRUE;
}
// creates the control - use like any other window create control
BOOL CGridCtrl::Create(const RECT& rect, CWnd* pParentWnd, UINT nID, DWORD dwStyle)
{
ASSERT(pParentWnd->GetSafeHwnd());
if (!CWnd::Create(GRIDCTRL_CLASSNAME, NULL, dwStyle, rect, pParentWnd, nID))
return FALSE;
//Initialise();
// The number of rows and columns will only be non-zero if the constructor
// was called with non-zero initialising parameters. If this window was created
// using a dialog template then the number of rows and columns will be 0 (which
// means that the code below will not be needed - which is lucky 'cause it ain't
// gonna get called in a dialog-template-type-situation.
TRY
{
m_arRowHeights.SetSize(m_nRows); // initialize row heights
m_arColWidths.SetSize(m_nCols); // initialize column widths
}
CATCH (CMemoryException, e)
{
e->ReportError();
return FALSE;
}
END_CATCH
for (int i = 0; i < m_nRows; i++)
m_arRowHeights[i] = m_cellDefault.GetHeight();
for (i = 0; i < m_nCols; i++)
m_arColWidths[i] = m_cellDefault.GetWidth();
ResetScrollBars(); //- called in OnSize anyway
return TRUE;
}
void CGridCtrl::SetupDefaultCells()
{
m_cellDefault.SetGrid(this); // Normal editable cell
m_cellFixedColDef.SetGrid(this); // Cell for fixed columns
m_cellFixedRowDef.SetGrid(this); // Cell for fixed rows
m_cellFixedRowColDef.SetGrid(this); // Cell for area overlapped by fixed columns/rows
m_cellDefault.SetTextClr(m_crWindowText);
m_cellDefault.SetBackClr(m_crWindowColour);
m_cellFixedColDef.SetTextClr(m_crWindowText);
m_cellFixedColDef.SetBackClr(m_cr3DFace);
m_cellFixedRowDef.SetTextClr(m_crWindowText);
m_cellFixedRowDef.SetBackClr(m_cr3DFace);
m_cellFixedRowColDef.SetTextClr(m_crWindowText);
m_cellFixedRowColDef.SetBackClr(m_cr3DFace);
}
void CGridCtrl::PreSubclassWindow()
{
CWnd::PreSubclassWindow();
//HFONT hFont = ::CreateFontIndirect(m_cellDefault.GetFont());
//OnSetFont((LPARAM)hFont, 0);
//DeleteObject(hFont);
Initialise();
// ResetScrollBars(); - called in OnSize anyway
}
// Sends a message to the parent in the form of a WM_NOTIFY message with
// a NM_GRIDVIEW structure attached
LRESULT CGridCtrl::SendMessageToParent(int nRow, int nCol, int nMessage) const
{
if (!IsWindow(m_hWnd))
return 0;
NM_GRIDVIEW nmgv;
nmgv.iRow = nRow;
nmgv.iColumn = nCol;
nmgv.hdr.hwndFrom = m_hWnd;
nmgv.hdr.idFrom = GetDlgCtrlID();
nmgv.hdr.code = nMessage;
CWnd *pOwner = GetOwner();
if (pOwner && IsWindow(pOwner->m_hWnd))
return pOwner->SendMessage(WM_NOTIFY, nmgv.hdr.idFrom, (LPARAM)&nmgv);
else
return 0;
}
// Send a request to the parent to return information on a given cell
LRESULT CGridCtrl::SendDisplayRequestToParent(GV_DISPINFO* pDisplayInfo) const
{
if (!IsWindow(m_hWnd))
return 0;
// Fix up the message headers
pDisplayInfo->hdr.hwndFrom = m_hWnd;
pDisplayInfo->hdr.idFrom = GetDlgCtrlID();
pDisplayInfo->hdr.code = GVN_GETDISPINFO;
// Send the message
CWnd *pOwner = GetOwner();
if (pOwner && IsWindow(pOwner->m_hWnd))
return pOwner->SendMessage(WM_NOTIFY, pDisplayInfo->hdr.idFrom, (LPARAM)pDisplayInfo);
else
return 0;
}
// Send a hint to the parent about caching information
LRESULT CGridCtrl::SendCacheHintToParent(CCellRange& range) const
{
if (!IsWindow(m_hWnd))
return 0;
GV_CACHEHINT CacheHint;
// Fix up the message headers
CacheHint.hdr.hwndFrom = m_hWnd;
CacheHint.hdr.idFrom = GetDlgCtrlID();
CacheHint.hdr.code = GVN_ODCACHEHINT;
CacheHint.range = range;
// Send the message
CWnd *pOwner = GetOwner();
if (pOwner && IsWindow(pOwner->m_hWnd))
return pOwner->SendMessage(WM_NOTIFY, CacheHint.hdr.idFrom, (LPARAM)&CacheHint);
else
return 0;
}
BEGIN_MESSAGE_MAP(CGridCtrl, CWnd)
//EFW - Added ON_WM_RBUTTONUP
//{{AFX_MSG_MAP(CGridCtrl)
ON_WM_PAINT()
ON_WM_HSCROLL()
ON_WM_VSCROLL()
ON_WM_SIZE()
ON_WM_LBUTTONUP()
ON_WM_LBUTTONDOWN()
ON_WM_MOUSEMOVE()
ON_WM_TIMER()
ON_WM_GETDLGCODE()
ON_WM_KEYDOWN()
ON_WM_CHAR()
ON_WM_LBUTTONDBLCLK()
ON_WM_ERASEBKGND()
ON_UPDATE_COMMAND_UI(ID_EDIT_SELECT_ALL, OnUpdateEditSelectAll)
ON_COMMAND(ID_EDIT_SELECT_ALL, OnEditSelectAll)
ON_WM_SYSKEYDOWN()
//}}AFX_MSG_MAP
#ifndef _WIN32_WCE_NO_CURSOR
ON_WM_SETCURSOR()
#endif
#ifndef _WIN32_WCE
ON_WM_RBUTTONUP()
ON_WM_SYSCOLORCHANGE()
ON_WM_CAPTURECHANGED()
#endif
#ifndef GRIDCONTROL_NO_CLIPBOARD
ON_COMMAND(ID_EDIT_COPY, OnEditCopy)
ON_UPDATE_COMMAND_UI(ID_EDIT_COPY, OnUpdateEditCopy)
ON_COMMAND(ID_EDIT_CUT, OnEditCut)
ON_UPDATE_COMMAND_UI(ID_EDIT_CUT, OnUpdateEditCut)
ON_COMMAND(ID_EDIT_PASTE, OnEditPaste)
ON_UPDATE_COMMAND_UI(ID_EDIT_PASTE, OnUpdateEditPaste)
#endif
#if (_WIN32_WCE >= 210)
ON_WM_SETTINGCHANGE()
#endif
#if !defined(_WIN32_WCE) && (_MFC_VER >= 0x0421)
ON_WM_MOUSEWHEEL()
#endif
ON_MESSAGE(WM_SETFONT, OnSetFont)
ON_MESSAGE(WM_GETFONT, OnGetFont)
ON_NOTIFY(GVN_ENDLABELEDIT, IDC_INPLACE_CONTROL, OnEndInPlaceEdit)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CGridCtrl message handlers
void CGridCtrl::OnPaint()
{
CPaintDC dc(this); // device context for painting
if (m_bDoubleBuffer) // Use a memory DC to remove flicker
{
CMemDC MemDC(&dc);
OnDraw(&MemDC);
}
else // Draw raw - this helps in debugging vis problems.
OnDraw(&dc);
}
BOOL CGridCtrl::OnEraseBkgnd(CDC* /*pDC*/)
{
return TRUE; // Don't erase the background.
}
// Custom background erasure. This gets called from within the OnDraw function,
// since we will (most likely) be using a memory DC to stop flicker. If we just
// erase the background normally through OnEraseBkgnd, and didn't fill the memDC's
// selected bitmap with colour, then all sorts of vis problems would occur
void CGridCtrl::EraseBkgnd(CDC* pDC)
{
CRect VisRect, ClipRect, rect;
CBrush FixedRowColBack(GetDefaultCell(TRUE, TRUE)->GetBackClr()),
FixedRowBack(GetDefaultCell(TRUE, FALSE)->GetBackClr()),
FixedColBack(GetDefaultCell(FALSE, TRUE)->GetBackClr()),
TextBack(GetDefaultCell(FALSE, FALSE)->GetBackClr());
CBrush Back(GetGridBkColor());
//CBrush Back(GetTextBkColor());
if (pDC->GetClipBox(ClipRect) == ERROR)
return;
GetVisibleNonFixedCellRange(VisRect);
int nFixedColumnWidth = GetFixedColumnWidth();
int nFixedRowHeight = GetFixedRowHeight();
// Draw Fixed row/column background
if (ClipRect.left < nFixedColumnWidth && ClipRect.top < nFixedRowHeight)
pDC->FillRect(CRect(ClipRect.left, ClipRect.top,
nFixedColumnWidth, VisRect.bottom),
&FixedRowColBack);
// Draw Fixed columns background
if (ClipRect.left < nFixedColumnWidth && ClipRect.top < VisRect.bottom)
pDC->FillRect(CRect(ClipRect.left, ClipRect.top,
nFixedColumnWidth, VisRect.bottom),
&FixedColBack);
// Draw Fixed rows background
if (ClipRect.top < nFixedRowHeight &&
ClipRect.right > nFixedColumnWidth && ClipRect.left < VisRect.right)
pDC->FillRect(CRect(nFixedColumnWidth-1, ClipRect.top,
VisRect.right, nFixedRowHeight),
&FixedRowBack);
// Draw non-fixed cell background
if (rect.IntersectRect(VisRect, ClipRect))
{
CRect CellRect(max(nFixedColumnWidth, rect.left),
max(nFixedRowHeight, rect.top),
rect.right, rect.bottom);
pDC->FillRect(CellRect, &TextBack);
}
// Draw right hand side of window outside grid
if (VisRect.right < ClipRect.right)
pDC->FillRect(CRect(VisRect.right, ClipRect.top,
ClipRect.right, ClipRect.bottom),
&Back);
// Draw bottom of window below grid
if (VisRect.bottom < ClipRect.bottom && ClipRect.left < VisRect.right)
pDC->FillRect(CRect(ClipRect.left, VisRect.bottom,
VisRect.right, ClipRect.bottom),
&Back);
}
void CGridCtrl::OnSize(UINT nType, int cx, int cy)
{
static BOOL bAlreadyInsideThisProcedure = FALSE;
if (bAlreadyInsideThisProcedure)
return;
if (!::IsWindow(m_hWnd))
return;
// Start re-entry blocking
bAlreadyInsideThisProcedure = TRUE;
EndEditing(); // destroy any InPlaceEdit's
CWnd::OnSize(nType, cx, cy);
ResetScrollBars();
// End re-entry blocking
bAlreadyInsideThisProcedure = FALSE;
}
UINT CGridCtrl::OnGetDlgCode()
{
UINT nCode = DLGC_WANTARROWS | DLGC_WANTCHARS; // DLGC_WANTALLKEYS; //
if (m_bHandleTabKey && !IsCTRLpressed())
nCode |= DLGC_WANTTAB;
return nCode;
}
#ifndef _WIN32_WCE
// If system colours change, then redo colours
void CGridCtrl::OnSysColorChange()
{
CWnd::OnSysColorChange();
if (GetDefaultCell(FALSE, FALSE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(FALSE, FALSE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(FALSE, FALSE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(FALSE, FALSE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetDefaultCell(TRUE, FALSE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(TRUE, FALSE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(TRUE, FALSE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(TRUE, FALSE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetDefaultCell(FALSE, TRUE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(FALSE, TRUE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(FALSE, TRUE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(FALSE, TRUE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetDefaultCell(TRUE, TRUE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(TRUE, TRUE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(TRUE, TRUE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(TRUE, TRUE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetGridBkColor() == m_crShadow)
SetGridBkColor(::GetSysColor(COLOR_3DSHADOW));
m_crWindowText = ::GetSysColor(COLOR_WINDOWTEXT);
m_crWindowColour = ::GetSysColor(COLOR_WINDOW);
m_cr3DFace = ::GetSysColor(COLOR_3DFACE);
m_crShadow = ::GetSysColor(COLOR_3DSHADOW);
}
#endif
#ifndef _WIN32_WCE_NO_CURSOR
// If we are drag-selecting cells, or drag and dropping, stop now
void CGridCtrl::OnCaptureChanged(CWnd *pWnd)
{
if (pWnd->GetSafeHwnd() == GetSafeHwnd())
return;
// kill timer if active
if (m_nTimerID != 0)
{
KillTimer(m_nTimerID);
m_nTimerID = 0;
}
#ifndef GRIDCONTROL_NO_DRAGDROP
// Kill drag and drop if active
if (m_MouseMode == MOUSE_DRAGGING)
m_MouseMode = MOUSE_NOTHING;
#endif
}
#endif
#if (_MFC_VER >= 0x0421) || (_WIN32_WCE >= 210)
// If system settings change, then redo colours
void CGridCtrl::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
{
CWnd::OnSettingChange(uFlags, lpszSection);
if (GetDefaultCell(FALSE, FALSE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(FALSE, FALSE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(FALSE, FALSE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(FALSE, FALSE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetDefaultCell(TRUE, FALSE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(TRUE, FALSE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(TRUE, FALSE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(TRUE, FALSE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetDefaultCell(FALSE, TRUE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(FALSE, TRUE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(FALSE, TRUE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(FALSE, TRUE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetDefaultCell(TRUE, TRUE)->GetTextClr() == m_crWindowText) // Still using system colours
GetDefaultCell(TRUE, TRUE)->SetTextClr(::GetSysColor(COLOR_WINDOWTEXT)); // set to new system colour
if (GetDefaultCell(TRUE, TRUE)->GetBackClr() == m_crWindowColour)
GetDefaultCell(TRUE, TRUE)->SetBackClr(::GetSysColor(COLOR_WINDOW));
if (GetGridBkColor() == m_crShadow)
SetGridBkColor(::GetSysColor(COLOR_3DSHADOW));
m_crWindowText = ::GetSysColor(COLOR_WINDOWTEXT);
m_crWindowColour = ::GetSysColor(COLOR_WINDOW);
m_cr3DFace = ::GetSysColor(COLOR_3DFACE);
m_crShadow = ::GetSysColor(COLOR_3DSHADOW);
m_nRowsPerWheelNotch = GetMouseScrollLines(); // Get the number of lines
}
#endif
// For drag-selection. Scrolls hidden cells into view
// TODO: decrease timer interval over time to speed up selection over time
void CGridCtrl::OnTimer(UINT nIDEvent)
{
ASSERT(nIDEvent == WM_LBUTTONDOWN);
if (nIDEvent != WM_LBUTTONDOWN)
return;
CPoint pt, origPt;
#ifdef _WIN32_WCE
if (m_MouseMode == MOUSE_NOTHING)
return;
origPt = GetMessagePos();
#else
if (!GetCursorPos(&origPt))
return;
#endif
ScreenToClient(&origPt);
CRect rect;
GetClientRect(rect);
int nFixedRowHeight = GetFixedRowHeight();
int nFixedColWidth = GetFixedColumnWidth();
pt = origPt;
if (pt.y > rect.bottom)
{
//SendMessage(WM_VSCROLL, SB_LINEDOWN, 0);
SendMessage(WM_KEYDOWN, VK_DOWN, 0);
if (pt.x < rect.left)
pt.x = rect.left;
if (pt.x > rect.right)
pt.x = rect.right;
pt.y = rect.bottom;
OnSelecting(GetCellFromPt(pt));
}
else if (pt.y < nFixedRowHeight)
{
//SendMessage(WM_VSCROLL, SB_LINEUP, 0);
SendMessage(WM_KEYDOWN, VK_UP, 0);
if (pt.x < rect.left)
pt.x = rect.left;
if (pt.x > rect.right)
pt.x = rect.right;
pt.y = nFixedRowHeight + 1;
OnSelecting(GetCellFromPt(pt));
}
pt = origPt;
if (pt.x > rect.right)
{
// SendMessage(WM_HSCROLL, SB_LINERIGHT, 0);
SendMessage(WM_KEYDOWN, VK_RIGHT, 0);
if (pt.y < rect.top)
pt.y = rect.top;
if (pt.y > rect.bottom)
pt.y = rect.bottom;
pt.x = rect.right;
OnSelecting(GetCellFromPt(pt));
}
else if (pt.x < nFixedColWidth)
{
//SendMessage(WM_HSCROLL, SB_LINELEFT, 0);
SendMessage(WM_KEYDOWN, VK_LEFT, 0);
if (pt.y < rect.top)
pt.y = rect.top;
if (pt.y > rect.bottom)
pt.y = rect.bottom;
pt.x = nFixedColWidth + 1;
OnSelecting(GetCellFromPt(pt));
}
}
// move about with keyboard
void CGridCtrl::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
if (!IsValid(m_idCurrentCell))
{
CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
return;
}
CCellID next = m_idCurrentCell;
BOOL bChangeLine = FALSE;
if (IsCTRLpressed())
{
switch (nChar)
{
case 'A':
OnEditSelectAll();
break;
#ifndef GRIDCONTROL_NO_CLIPBOARD
case 'X':
OnEditCut();
break;
case VK_INSERT:
case 'C':
OnEditCopy();
break;
case 'V':
OnEditPaste();
break;
#endif
}
}
#ifndef GRIDCONTROL_NO_CLIPBOARD
if (IsSHIFTpressed() &&(nChar == VK_INSERT))
OnEditPaste();
#endif
BOOL bFoundVisible;
int iOrig;
switch (nChar)
{
case VK_DELETE:
if (IsCellEditable(m_idCurrentCell.row, m_idCurrentCell.col))
{
SendMessageToParent(m_idCurrentCell.row, m_idCurrentCell.col, GVN_BEGINLABELEDIT);
SetItemText(m_idCurrentCell.row, m_idCurrentCell.col, _T(""));
SetModified(TRUE, m_idCurrentCell.row, m_idCurrentCell.col);
SendMessageToParent(m_idCurrentCell.row, m_idCurrentCell.col, GVN_ENDLABELEDIT);
RedrawCell(m_idCurrentCell);
}
break;
case VK_TAB:
if (IsSHIFTpressed())
{
if (next.col > m_nFixedCols)
next.col--;
else if (next.col == m_nFixedCols && next.row > m_nFixedRows)
{
next.row--;
next.col = GetColumnCount() - 1;
bChangeLine = TRUE;
}
else
CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
}
else
{
if (next.col <(GetColumnCount() - 1))
next.col++;
else if (next.col == (GetColumnCount() - 1) &&
next.row <(GetRowCount() - 1))
{
next.row++;
next.col = m_nFixedCols;
bChangeLine = TRUE;
}
else
CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
}
break;
case VK_DOWN:
// don't let user go to a hidden row
bFoundVisible = FALSE;
iOrig = next.row;
next.row++;
while( next.row < GetRowCount())
{
if( GetRowHeight( next.row) > 0)
{
bFoundVisible = TRUE;
break;
}
next.row++;
}
if( !bFoundVisible)
next.row = iOrig;
break;
case VK_UP:
// don't let user go to a hidden row
bFoundVisible = FALSE;
iOrig = next.row;
next.row--;
while( next.row >= m_nFixedRows)
{
if( GetRowHeight( next.row) > 0)
{
bFoundVisible = TRUE;
break;
}
next.row--;
}
if( !bFoundVisible)
next.row = iOrig;
break;
case VK_RIGHT:
// don't let user go to a hidden column
bFoundVisible = FALSE;
iOrig = next.col;
next.col++;
while( next.col < GetColumnCount())
{
if( GetColumnWidth( next.col) > 0)
{
bFoundVisible = TRUE;
break;
}
next.col++;
}
if( !bFoundVisible)
next.col = iOrig;
break;
case VK_LEFT:
// don't let user go to a hidden column
bFoundVisible = FALSE;
iOrig = next.col;
next.col--;
while( next.col >= m_nFixedCols)
{
if( GetColumnWidth( next.col) > 0)
{
bFoundVisible = TRUE;
break;
}
next.col--;
}
if( !bFoundVisible)
next.col = iOrig;
break;
case VK_NEXT:
{
CCellID idOldTopLeft = GetTopleftNonFixedCell();
SendMessage(WM_VSCROLL, SB_PAGEDOWN, 0);
CCellID idNewTopLeft = GetTopleftNonFixedCell();
int increment = idNewTopLeft.row - idOldTopLeft.row;
if (increment)
{
next.row += increment;
if (next.row >(GetRowCount() - 1))
next.row = GetRowCount() - 1;
}
else
next.row = GetRowCount() - 1;
break;
}
case VK_PRIOR:
{
CCellID idOldTopLeft = GetTopleftNonFixedCell();
SendMessage(WM_VSCROLL, SB_PAGEUP, 0);
CCellID idNewTopLeft = GetTopleftNonFixedCell();
int increment = idNewTopLeft.row - idOldTopLeft.row;
if (increment)
{
next.row += increment;
if (next.row < m_nFixedRows)
next.row = m_nFixedRows;
}
else
next.row = m_nFixedRows;
break;
}
case VK_HOME:
// Home and Ctrl-Home work more like Excel
// and don't let user go to a hidden cell
if (IsCTRLpressed())
{
SendMessage(WM_VSCROLL, SB_TOP, 0);
SendMessage(WM_HSCROLL, SB_LEFT, 0);
next.row = m_nFixedRows;
next.col = m_nFixedCols;
}
else
{
SendMessage(WM_HSCROLL, SB_LEFT, 0);
next.col = m_nFixedCols;
}
// adjust column to avoid hidden columns and rows
while( next.col < GetColumnCount() - 1)
{
if( GetColumnWidth( next.col) > 0)
break;
next.col++;
}
while( next.row < GetRowCount() - 1)
{
if( GetRowHeight( next.row) > 0)
break;
next.row++;
}
break;
case VK_END:
// End and Ctrl-End work more like Excel
// and don't let user go to a hidden cell
if (IsCTRLpressed())
{
SendMessage(WM_VSCROLL, SB_BOTTOM, 0);
SendMessage(WM_HSCROLL, SB_RIGHT, 0);
next.row = GetRowCount() - 1;
next.col = GetColumnCount() - 1;
}
else
{
SendMessage(WM_HSCROLL, SB_RIGHT, 0);
next.col = GetColumnCount() - 1;
}
// adjust column to avoid hidden columns and rows
while( next.col > m_nFixedCols + 1)
{
if( GetColumnWidth( next.col) > 0)
break;
next.col--;
}
while( next.row > m_nFixedRows + 1)
{
if( GetRowHeight( next.row) > 0)
break;
next.row--;
}
break;
case VK_F2:
OnEditCell(m_idCurrentCell.row, m_idCurrentCell.col, CPoint( -1, -1), VK_LBUTTON);
break;
default:
CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
return;
}
if (next != m_idCurrentCell)
{
// While moving with the Cursorkeys the current ROW/CELL will get selected
// OR Selection will get expanded when SHIFT is pressed
// Cut n paste from OnLButtonDown - Franco Bez
// Added check for NULL mouse mode - Chris Maunder.
if (m_MouseMode == MOUSE_NOTHING)
{
m_PrevSelectedCellMap.RemoveAll();
m_MouseMode = m_bListMode? MOUSE_SELECT_ROW : MOUSE_SELECT_CELLS;
if (!IsSHIFTpressed() || nChar == VK_TAB)
m_SelectionStartCell = next;
OnSelecting(next);
m_MouseMode = MOUSE_NOTHING;
}
SetFocusCell(next);
if (!IsCellVisible(next))
{
switch (nChar)
{
case VK_RIGHT:
SendMessage(WM_HSCROLL, SB_LINERIGHT, 0);
break;
case VK_LEFT:
SendMessage(WM_HSCROLL, SB_LINELEFT, 0);
break;
case VK_DOWN:
SendMessage(WM_VSCROLL, SB_LINEDOWN, 0);
break;
case VK_UP:
SendMessage(WM_VSCROLL, SB_LINEUP, 0);
break;
case VK_TAB:
if (IsSHIFTpressed())
{
if (bChangeLine)
{
SendMessage(WM_VSCROLL, SB_LINEUP, 0);
SetScrollPos32(SB_HORZ, m_nHScrollMax);
break;
}
else
SendMessage(WM_HSCROLL, SB_LINELEFT, 0);
}
else
{
if (bChangeLine)
{
SendMessage(WM_VSCROLL, SB_LINEDOWN, 0);
SetScrollPos32(SB_HORZ, 0);
break;
}
else
SendMessage(WM_HSCROLL, SB_LINERIGHT, 0);
}
break;
}
EnsureVisible(next); // Make sure cell is visible
Invalidate();
}
EnsureVisible(next); // Make sure cell is visible
}
}
void CGridCtrl::OnSysKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
#ifdef GRIDCONTROL_USE_TITLETIPS
m_TitleTip.Hide(); // hide any titletips
#endif
CWnd::OnSysKeyDown(nChar, nRepCnt, nFlags);
}
// Instant editing of cells when keys are pressed
void CGridCtrl::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
// EFW - BUG FIX
if (!IsCTRLpressed() && m_MouseMode == MOUSE_NOTHING && nChar != VK_ESCAPE)
{
if (!m_bHandleTabKey || (m_bHandleTabKey && nChar != VK_TAB))
OnEditCell(m_idCurrentCell.row, m_idCurrentCell.col, CPoint( -1, -1), nChar);
}
CWnd::OnChar(nChar, nRepCnt, nFlags);
}
// Callback from any CInPlaceEdits that ended. This just calls OnEndEditCell,
// refreshes the edited cell and moves onto next cell if the return character
// from the edit says we should.
void CGridCtrl::OnEndInPlaceEdit(NMHDR* pNMHDR, LRESULT* pResult)
{
GV_DISPINFO *pgvDispInfo = (GV_DISPINFO *)pNMHDR;
GV_ITEM *pgvItem = &pgvDispInfo->item;
// In case OnEndInPlaceEdit called as window is being destroyed
if (!IsWindow(GetSafeHwnd()))
return;
OnEndEditCell(pgvItem->row, pgvItem->col, pgvItem->strText);
//InvalidateCellRect(CCellID(pgvItem->row, pgvItem->col));
SendMessageToParent(pgvItem->row, pgvItem->col, GVN_ENDLABELEDIT);
switch (pgvItem->lParam)
{
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_END:
OnKeyDown(pgvItem->lParam, 0, 0);
OnEditCell(m_idCurrentCell.row, m_idCurrentCell.col, CPoint( -1, -1), pgvItem->lParam);
}
*pResult = 0;
}
// Handle horz scrollbar notifications
void CGridCtrl::OnHScroll(UINT nSBCode, UINT /*nPos*/, CScrollBar* /*pScrollBar*/)
{
EndEditing();
#ifndef GRIDCONTROL_NO_TITLETIPS
m_TitleTip.Hide(); // hide any titletips
#endif
int scrollPos = GetScrollPos32(SB_HORZ);
CCellID idTopLeft = GetTopleftNonFixedCell();
CRect rect;
GetClientRect(rect);
switch (nSBCode)
{
case SB_LINERIGHT:
if (scrollPos < m_nHScrollMax)
{
// may have contiguous hidden columns. Blow by them
while (idTopLeft.col < (GetColumnCount()-1)
&& GetColumnWidth( idTopLeft.col) < 1 )
{
idTopLeft.col++;
}
int xScroll = GetColumnWidth(idTopLeft.col);
SetScrollPos32(SB_HORZ, scrollPos + xScroll);
if (GetScrollPos32(SB_HORZ) == scrollPos)
break; // didn't work
rect.left = GetFixedColumnWidth();
//rect.left = GetFixedColumnWidth() + xScroll;
//ScrollWindow(-xScroll, 0, rect);
//rect.left = rect.right - xScroll;
InvalidateRect(rect);
}
break;
case SB_LINELEFT:
if (scrollPos > 0 && idTopLeft.col > GetFixedColumnCount())
{
int iColToUse = idTopLeft.col-1;
// may have contiguous hidden columns. Blow by them
while( iColToUse > GetFixedColumnCount()
&& GetColumnWidth( iColToUse) < 1 )
{
iColToUse--;
}
int xScroll = GetColumnWidth(iColToUse);
SetScrollPos32(SB_HORZ, max(0, scrollPos - xScroll));
rect.left = GetFixedColumnWidth();
//ScrollWindow(xScroll, 0, rect);
//rect.right = rect.left + xScroll;
InvalidateRect(rect);
}
break;
case SB_PAGERIGHT:
if (scrollPos < m_nHScrollMax)
{
rect.left = GetFixedColumnWidth();
int offset = rect.Width();
int pos = min(m_nHScrollMax, scrollPos + offset);
SetScrollPos32(SB_HORZ, pos);
rect.left = GetFixedColumnWidth();
InvalidateRect(rect);
}
break;
case SB_PAGELEFT:
if (scrollPos > 0)
{
rect.left = GetFixedColumnWidth();
int offset = -rect.Width();
int pos = max(0, scrollPos + offset);
SetScrollPos32(SB_HORZ, pos);
rect.left = GetFixedColumnWidth();
InvalidateRect(rect);
}
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
{
SetScrollPos32(SB_HORZ, GetScrollPos32(SB_HORZ, TRUE));
m_idTopLeftCell.row = -1;
CCellID idNewTopLeft = GetTopleftNonFixedCell();
if (idNewTopLeft != idTopLeft)
{
rect.left = GetFixedColumnWidth();
InvalidateRect(rect);
}
}
break;
case SB_LEFT:
if (scrollPos > 0)
{
SetScrollPos32(SB_HORZ, 0);
Invalidate();
}
break;
case SB_RIGHT:
if (scrollPos < m_nHScrollMax)
{
SetScrollPos32(SB_HORZ, m_nHScrollMax);
Invalidate();
}
break;
default:
break;
}
}
// Handle vert scrollbar notifications
void CGridCtrl::OnVScroll(UINT nSBCode, UINT /*nPos*/, CScrollBar* /*pScrollBar*/)
{
EndEditing();
#ifndef GRIDCONTROL_NO_TITLETIPS
m_TitleTip.Hide(); // hide any titletips
#endif
// Get the scroll position ourselves to ensure we get a 32 bit value
int scrollPos = GetScrollPos32(SB_VERT);
CCellID idTopLeft = GetTopleftNonFixedCell();
CRect rect;
GetClientRect(rect);
switch (nSBCode)
{
case SB_LINEDOWN:
if (scrollPos < m_nVScrollMax)
{
// may have contiguous hidden rows. Blow by them
while( idTopLeft.row < (GetRowCount()-1)
&& GetRowHeight( idTopLeft.row) < 1 )
{
idTopLeft.row++;
}
int yScroll = GetRowHeight(idTopLeft.row);
SetScrollPos32(SB_VERT, scrollPos + yScroll);
if (GetScrollPos32(SB_VERT) == scrollPos)
break; // didn't work
rect.top = GetFixedRowHeight();
//rect.top = GetFixedRowHeight() + yScroll;
//ScrollWindow(0, -yScroll, rect);
//rect.top = rect.bottom - yScroll;
InvalidateRect(rect);
}
break;
case SB_LINEUP:
if (scrollPos > 0 && idTopLeft.row > GetFixedRowCount())
{
int iRowToUse = idTopLeft.row-1;
// may have contiguous hidden rows. Blow by them
while( iRowToUse > GetFixedRowCount()
&& GetRowHeight( iRowToUse) < 1 )
{
iRowToUse--;
}
int yScroll = GetRowHeight( iRowToUse);
SetScrollPos32(SB_VERT, max(0, scrollPos - yScroll));
rect.top = GetFixedRowHeight();
//ScrollWindow(0, yScroll, rect);
//rect.bottom = rect.top + yScroll;
InvalidateRect(rect);
}
break;
case SB_PAGEDOWN:
if (scrollPos < m_nVScrollMax)
{
rect.top = GetFixedRowHeight();
scrollPos = min(m_nVScrollMax, scrollPos + rect.Height());
SetScrollPos32(SB_VERT, scrollPos);
rect.top = GetFixedRowHeight();
InvalidateRect(rect);
}
break;
case SB_PAGEUP:
if (scrollPos > 0)
{
rect.top = GetFixedRowHeight();
int offset = -rect.Height();
int pos = max(0, scrollPos + offset);
SetScrollPos32(SB_VERT, pos);
rect.top = GetFixedRowHeight();
InvalidateRect(rect);
}
break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
{
SetScrollPos32(SB_VERT, GetScrollPos32(SB_VERT, TRUE));
m_idTopLeftCell.row = -1;
CCellID idNewTopLeft = GetTopleftNonFixedCell();
if (idNewTopLeft != idTopLeft)
{
rect.top = GetFixedRowHeight();
InvalidateRect(rect);
}
}
break;
case SB_TOP:
if (scrollPos > 0)
{
SetScrollPos32(SB_VERT, 0);
Invalidate();
}
break;
case SB_BOTTOM:
if (scrollPos < m_nVScrollMax)
{
SetScrollPos32(SB_VERT, m_nVScrollMax);
Invalidate();
}
default:
break;
}
}
/////////////////////////////////////////////////////////////////////////////
// CGridCtrl implementation functions
void CGridCtrl::OnDraw(CDC* pDC)
{
if (!m_bAllowDraw)
return;
CRect clipRect;
if (pDC->GetClipBox(&clipRect) == ERROR)
return;
EraseBkgnd(pDC); // OnEraseBkgnd does nothing, so erase bkgnd here.
// This necessary since we may be using a Memory DC.
CRect rect;
int row, col;
CGridCellBase* pCell;
int nFixedRowHeight = GetFixedRowHeight();
int nFixedColWidth = GetFixedColumnWidth();
CCellID idTopLeft = GetTopleftNonFixedCell();
int minVisibleRow = idTopLeft.row,
minVisibleCol = idTopLeft.col;
CRect VisRect;
CCellRange VisCellRange = GetVisibleNonFixedCellRange(VisRect);
int maxVisibleRow = VisCellRange.GetMaxRow(),
maxVisibleCol = VisCellRange.GetMaxCol();
if (GetVirtualMode())
SendCacheHintToParent(VisCellRange);
// draw top-left cells 0..m_nFixedRows-1, 0..m_nFixedCols-1
rect.bottom = -1;
for (row = 0; row < m_nFixedRows; row++)
{
rect.top = rect.bottom+1;
rect.bottom = rect.top + GetRowHeight(row)-1;
rect.right = -1;
for (col = 0; col < m_nFixedCols; col++)
{
rect.left = rect.right+1;
rect.right = rect.left + GetColumnWidth(col)-1;
pCell = GetCell(row, col);
if (pCell)
pCell->Draw(pDC, row, col, rect, FALSE);
}
}
// draw fixed column cells: m_nFixedRows..n, 0..m_nFixedCols-1
rect.bottom = nFixedRowHeight-1;
for (row = minVisibleRow; row <= maxVisibleRow; row++)
{
rect.top = rect.bottom+1;
rect.bottom = rect.top + GetRowHeight(row)-1;
// rect.bottom = bottom pixel of previous row
if (rect.top > clipRect.bottom)
break; // Gone past cliprect
if (rect.bottom < clipRect.top)
continue; // Reached cliprect yet?
rect.right = -1;
for (col = 0; col < m_nFixedCols; col++)
{
rect.left = rect.right+1;
rect.right = rect.left + GetColumnWidth(col)-1;
if (rect.left > clipRect.right)
break; // gone past cliprect
if (rect.right < clipRect.left)
continue; // Reached cliprect yet?
pCell = GetCell(row, col);
if (pCell)
pCell->Draw(pDC, row, col, rect, FALSE);
}
}
// draw fixed row cells 0..m_nFixedRows, m_nFixedCols..n
rect.bottom = -1;
for (row = 0; row < m_nFixedRows; row++)
{
rect.top = rect.bottom+1;
rect.bottom = rect.top + GetRowHeight(row)-1;
// rect.bottom = bottom pixel of previous row
if (rect.top > clipRect.bottom)
break; // Gone past cliprect
if (rect.bottom < clipRect.top)
continue; // Reached cliprect yet?
rect.right = nFixedColWidth-1;
for (col = minVisibleCol; col <= maxVisibleCol; col++)
{
rect.left = rect.right+1;
rect.right = rect.left + GetColumnWidth(col)-1;
if (rect.left > clipRect.right)
break; // gone past cliprect
if (rect.right < clipRect.left)
continue; // Reached cliprect yet?
pCell = GetCell(row, col);
if (pCell)
pCell->Draw(pDC, row, col, rect, FALSE);
}
}
// draw rest of non-fixed cells
rect.bottom = nFixedRowHeight-1;
for (row = minVisibleRow; row <= maxVisibleRow; row++)
{
rect.top = rect.bottom+1;
rect.bottom = rect.top + GetRowHeight(row)-1;
// rect.bottom = bottom pixel of previous row
if (rect.top > clipRect.bottom)
break; // Gone past cliprect
if (rect.bottom < clipRect.top)
continue; // Reached cliprect yet?
rect.right = nFixedColWidth-1;
for (col = minVisibleCol; col <= maxVisibleCol; col++)
{
rect.left = rect.right+1;
rect.right = rect.left + GetColumnWidth(col)-1;
if (rect.left > clipRect.right)
break; // gone past cliprect
if (rect.right < clipRect.left)
continue; // Reached cliprect yet?
pCell = GetCell(row, col);
// TRACE(_T("Cell %d,%d type: %sn"), row, col, pCell->GetRuntimeClass()->m_lpszClassName);
if (pCell)
pCell->Draw(pDC, row, col, rect, FALSE);
}
}
CPen pen;
pen.CreatePen(PS_SOLID, 0, m_crGridLineColour);
pDC->SelectObject(&pen);
// draw vertical lines (drawn at ends of cells)
if (m_nGridLines == GVL_BOTH || m_nGridLines == GVL_VERT)
{
int x = nFixedColWidth;
for (col = minVisibleCol; col <= maxVisibleCol; col++)
{
x += GetColumnWidth(col);
pDC->MoveTo(x-1, nFixedRowHeight);
pDC->LineTo(x-1, VisRect.bottom);
}
}
// draw horizontal lines (drawn at bottom of each cell)
if (m_nGridLines == GVL_BOTH || m_nGridLines == GVL_HORZ)
{
int y = nFixedRowHeight;
for (row = minVisibleRow; row <= maxVisibleRow; row++)
{
y += GetRowHeight(row);
pDC->MoveTo(nFixedColWidth, y-1);
pDC->LineTo(VisRect.right, y-1);
}
}
pDC->SelectStockObject(NULL_PEN);
}
////////////////////////////////////////////////////////////////////////////////////////
// CGridCtrl Cell selection stuff
// Is a given cell designation valid (ie within the bounds of our number
// of columns/rows)?
BOOL CGridCtrl::IsValid(int nRow, int nCol) const
{
return (nRow >= 0 && nRow < m_nRows && nCol >= 0 && nCol < m_nCols);
}
BOOL CGridCtrl::IsValid(const CCellID& cell) const
{
return IsValid(cell.row, cell.col);
}
// Is a given cell range valid (ie within the bounds of our number
// of columns/rows)?
BOOL CGridCtrl::IsValid(const CCellRange& range) const
{
return (range.GetMinRow() >= 0 && range.GetMinCol() >= 0 &&
range.GetMaxRow() >= 0 && range.GetMaxCol() >= 0 &&
range.GetMaxRow() < m_nRows && range.GetMaxCol() < m_nCols &&
range.GetMinRow() <= range.GetMaxRow() && range.GetMinCol() <= range.GetMaxCol());
}
// Enables/Disables redraw for certain operations like columns auto-sizing etc,
// but not for user caused things such as selection changes.
void CGridCtrl::SetRedraw(BOOL bAllowDraw, BOOL bResetScrollBars /* = FALSE */)
{
// TRACE(_T("%s: Setting redraw to %sn"),
// GetRuntimeClass()->m_lpszClassName, bAllowDraw? _T("TRUE") : _T("FALSE"));
if (bAllowDraw && !m_bAllowDraw)
{
m_bAllowDraw = TRUE;
Refresh();
}
if (bResetScrollBars)
ResetScrollBars();
}
// Forces a redraw of a cell immediately (using a direct DC construction,
// or the supplied dc)
BOOL CGridCtrl::RedrawCell(const CCellID& cell, CDC* pDC /* = NULL */)
{
return RedrawCell(cell.row, cell.col, pDC);
}
BOOL CGridCtrl::RedrawCell(int nRow, int nCol, CDC* pDC /* = NULL */)
{
BOOL bResult = TRUE;
BOOL bMustReleaseDC = FALSE;
if (!m_bAllowDraw || !IsCellVisible(nRow, nCol))
return FALSE;
CRect rect;
if (!GetCellRect(nRow, nCol, rect))
return FALSE;
if (!pDC)
{
pDC = GetDC();
if (pDC)
bMustReleaseDC = TRUE;
}
if (pDC)
{
// Redraw cells directly
if (nRow < m_nFixedRows || nCol < m_nFixedCols)
{
CGridCellBase* pCell = GetCell(nRow, nCol);
if (pCell)
bResult = pCell->Draw(pDC, nRow, nCol, rect, TRUE);
}
else
{
CGridCellBase* pCell = GetCell(nRow, nCol);
if (pCell)
bResult = pCell->Draw(pDC, nRow, nCol, rect, TRUE);
// Since we have erased the background, we will need to redraw the gridlines
CPen pen;
pen.CreatePen(PS_SOLID, 0, m_crGridLineColour);
CPen* pOldPen = (CPen*) pDC->SelectObject(&pen);
if (m_nGridLines == GVL_BOTH || m_nGridLines == GVL_HORZ)
{
pDC->MoveTo(rect.left, rect.bottom);
pDC->LineTo(rect.right + 1, rect.bottom);
}
if (m_nGridLines == GVL_BOTH || m_nGridLines == GVL_VERT)
{
pDC->MoveTo(rect.right, rect.top);
pDC->LineTo(rect.right, rect.bottom + 1);
}
pDC->SelectObject(pOldPen);
}
} else
InvalidateRect(rect, TRUE); // Could not get a DC - invalidate it anyway
// and hope that OnPaint manages to get one
if (bMustReleaseDC)
ReleaseDC(pDC);
return bResult;
}
// redraw a complete row
BOOL CGridCtrl::RedrawRow(int row)
{
BOOL bResult = TRUE;
CDC* pDC = GetDC();
for (int col = 0; col < GetColumnCount(); col++)
bResult = RedrawCell(row, col, pDC) && bResult;
if (pDC)
ReleaseDC(pDC);
return bResult;
}
// redraw a complete column
BOOL CGridCtrl::RedrawColumn(int col)
{
BOOL bResult = TRUE;
CDC* pDC = GetDC();
for (int row = 0; row < GetRowCount(); row++)
bResult = RedrawCell(row, col, pDC) && bResult;
if (pDC)
ReleaseDC(pDC);
return bResult;
}
// Sets the currently selected cell, returning the previous current cell
CCellID CGridCtrl::SetFocusCell(int nRow, int nCol)
{
return SetFocusCell(CCellID(nRow, nCol));
}
CCellID CGridCtrl::SetFocusCell(CCellID cell)
{
if (cell == m_idCurrentCell)
return m_idCurrentCell;
CCellID idPrev = m_idCurrentCell;
// EFW - Bug Fix - Force focus to be in a non-fixed cell
if(cell.row != -1 && cell.row < GetFixedRowCount())
cell.row = GetFixedRowCount();
if(cell.col != -1 && cell.col < GetFixedColumnCount())
cell.col = GetFixedColumnCount();
m_idCurrentCell = cell;
if (IsValid(idPrev))
{
SendMessageToParent(idPrev.row, idPrev.col, GVN_SELCHANGING);
SetItemState(idPrev.row, idPrev.col,
GetItemState(idPrev.row, idPrev.col) & ~GVIS_FOCUSED);
RedrawCell(idPrev); // comment to reduce flicker
if (GetTrackFocusCell() && idPrev.col != m_idCurrentCell.col)
for (int row = 0; row < m_nFixedRows; row++)
RedrawCell(row, idPrev.col);
if (GetTrackFocusCell() && idPrev.row != m_idCurrentCell.row)
for (int col = 0; col < m_nFixedCols; col++)
RedrawCell(idPrev.row, col);
}
if (IsValid(m_idCurrentCell))
{
SetItemState(m_idCurrentCell.row, m_idCurrentCell.col,
GetItemState(m_idCurrentCell.row, m_idCurrentCell.col) | GVIS_FOCUSED);
RedrawCell(m_idCurrentCell); // comment to reduce flicker
if (GetTrackFocusCell() && idPrev.col != m_idCurrentCell.col)
for (int row = 0; row < m_nFixedRows; row++)
RedrawCell(row, m_idCurrentCell.col);
if (GetTrackFocusCell() && idPrev.row != m_idCurrentCell.row)
for (int col = 0; col < m_nFixedCols; col++)
RedrawCell(m_idCurrentCell.row, col);
SendMessageToParent(m_idCurrentCell.row, m_idCurrentCell.col, GVN_SELCHANGED);
// EFW - New addition. If in list mode, make sure the selected
// row highlight follows the cursor.
// Removed by C Maunder 27 May
//if (m_bListMode)
//{
// m_PrevSelectedCellMap.RemoveAll();
// m_MouseMode = MOUSE_SELECT_ROW;
// OnSelecting(m_idCurrentCell);
// Leave this off so that you can still drag the highlight around
// without selecting rows.
// m_MouseMode = MOUSE_NOTHING;
//}
}
return idPrev;
}
// Sets the range of currently selected cells
void CGridCtrl::SetSelectedRange(const CCellRange& Range,
BOOL bForceRepaint /* = FALSE */, BOOL bSelectCells/*=TRUE*/)
{
SetSelectedRange(Range.GetMinRow(), Range.GetMinCol(),
Range.GetMaxRow(), Range.GetMaxCol(),
bForceRepaint, bSelectCells);
}
void CGridCtrl::SetSelectedRange(int nMinRow, int nMinCol, int nMaxRow, int nMaxCol,
BOOL bForceRepaint /* = FALSE */, BOOL bSelectCells/*=TRUE*/)
{
if (!m_bEnableSelection)
return;
CDC* pDC = NULL;
if (bForceRepaint)
pDC = GetDC();
// EFW - Bug fix - Don't allow selection of fixed rows
if(nMinRow >= 0 && nMinRow < GetFixedRowCount())
nMinRow = GetFixedRowCount();
if(nMaxRow >= 0 && nMaxRow < GetFixedRowCount())
nMaxRow = GetFixedRowCount();
if(nMinCol >= 0 && nMinCol < GetFixedColumnCount())
nMinCol = GetFixedColumnCount();
if(nMaxCol >= 0 && nMaxCol < GetFixedColumnCount())
nMaxCol = GetFixedColumnCount();
// If we are selecting cells, then first clear out the list of currently selected cells, then
if (bSelectCells)
{
// Unselect all previously selected cells
for (POSITION pos = m_SelectedCellMap.GetStartPosition(); pos != NULL; )
{
DWORD key;
CCellID cell;
m_SelectedCellMap.GetNextAssoc(pos, key, (CCellID&)cell);
// Reset the selection flag on the cell
if (IsValid(cell))
{
// This will remove the cell from the m_SelectedCellMap map
SetItemState(cell.row, cell.col,
GetItemState(cell.row, cell.col) & ~GVIS_SELECTED);
// If this is to be reselected, continue on past the redraw
if (nMinRow <= cell.row && cell.row <= nMaxRow &&
nMinCol <= cell.col && cell.col <= nMaxCol)
continue;
if (bForceRepaint && pDC) // Redraw NOW
RedrawCell(cell.row, cell.col, pDC);
else
InvalidateCellRect(cell); // Redraw at leisure
}
else
{
m_SelectedCellMap.RemoveKey( key); // if it's not valid, get rid of it!
}
}
// if we are selecting cells, and there are previous selected cells to be retained
// (eg Ctrl is being held down) then copy them to the newly created list, and mark
// all these cells as selected
// Note that if we are list mode, single row selection, the we won't be adding
// the previous cells. Only the current row of cells will be added (see below)
if (!GetSingleRowSelection() &&
nMinRow >= 0 && nMinCol >= 0 && nMaxRow >= 0 && nMaxCol >= 0)
{
for (pos = m_PrevSelectedCellMap.GetStartPosition(); pos != NULL; /* nothing */)
{
DWORD key;
CCellID cell;
m_PrevSelectedCellMap.GetNextAssoc(pos, key, (CCellID&)cell);
if (!IsValid(cell))
continue;
int nState = GetItemState(cell.row, cell.col);
// Set state as Selected. This will add the cell to m_SelectedCellMap
SetItemState(cell.row, cell.col, nState | GVIS_SELECTED);
// Redraw (immediately or at leisure)
if (bForceRepaint && pDC)
RedrawCell(cell.row, cell.col, pDC);
else
InvalidateCellRect(cell);
}
}
}
// Now select/deselect all cells in the cell range specified. If selecting, and the cell
// has already been marked as selected (above) then ignore it. If we are deselecting and
// the cell isn't selected, then ignore
if (nMinRow >= 0 && nMinCol >= 0 && nMaxRow >= 0 && nMaxCol >= 0 &&
nMaxRow < m_nRows && nMaxCol < m_nCols &&
nMinRow <= nMaxRow && nMinCol <= nMaxCol)
{
for (int row = nMinRow; row <= nMaxRow; row++)
for (int col = nMinCol; col <= nMaxCol; col++)
{
int nState = GetItemState(row, col);
// Why is there no XOR operator in C??? We have bitwise XOR ^, but what about ^^??
if ( (bSelectCells && (nState & GVIS_SELECTED)) ||
(!bSelectCells && !(nState & GVIS_SELECTED)) )
continue; // Already selected or deselected - ignore
// Set the selected state. This will add/remove the cell to m_SelectedCellMap
if (bSelectCells)
SetItemState(row, col, nState | GVIS_SELECTED);
else
SetItemState(row, col, GetItemState(row, col) & ~GVIS_SELECTED);
// Redraw (immediately or at leisure)
if (bForceRepaint && pDC)
RedrawCell(row, col, pDC);
else
InvalidateCellRect(row, col);
}
}
// TRACE(_T("%d cells selected.n"), m_SelectedCellMap.GetCount());
if (pDC != NULL)
ReleaseDC(pDC);
}
// selects all cells
void CGridCtrl::SelectAllCells()
{
if (!m_bEnableSelection)
return;
SetSelectedRange(m_nFixedRows, m_nFixedCols, GetRowCount()-1, GetColumnCount()-1);
}
// selects columns
void CGridCtrl::SelectColumns(CCellID currentCell,
BOOL bForceRedraw /*=FALSE*/, BOOL bSelectCells /*=TRUE*/)
{
if (!m_bEnableSelection)
return;
//if (currentCell.col == m_idCurrentCell.col) return;
if (currentCell.col < m_nFixedCols)
return;
if (!IsValid(currentCell))
return;
if (GetSingleColSelection())
SetSelectedRange(GetFixedRowCount(), currentCell.col,
GetRowCount()-1, currentCell.col,
bForceRedraw, bSelectCells);
else
SetSelectedRange(GetFixedRowCount(),
min(m_SelectionStartCell.col, currentCell.col),
GetRowCount()-1,
max(m_SelectionStartCell.col, currentCell.col),
bForceRedraw, bSelectCells);
}
// selects rows
void CGridCtrl::SelectRows(CCellID currentCell,
BOOL bForceRedraw /*=FALSE*/, BOOL bSelectCells /*=TRUE*/)
{
if (!m_bEnableSelection)
return;
//if (currentCell.row; == m_idCurrentCell.row) return;
if (currentCell.row < m_nFixedRows)
return;
if (!IsValid(currentCell))
return;
if (GetSingleRowSelection())
SetSelectedRange(currentCell.row, GetFixedColumnCount(),
currentCell.row, GetColumnCount()-1,
bForceRedraw, bSelectCells);
else
SetSelectedRange(min(m_SelectionStartCell.row, currentCell.row),
GetFixedColumnCount(),
max(m_SelectionStartCell.row, currentCell.row),
GetColumnCount()-1,
bForceRedraw, bSelectCells);
}
// selects cells
void CGridCtrl::SelectCells(CCellID currentCell,
BOOL bForceRedraw /*=FALSE*/, BOOL bSelectCells /*=TRUE*/)
{
if (!m_bEnableSelection)
return;
int row = currentCell.row;
int col = currentCell.col;
if (row < m_nFixedRows || col < m_nFixedCols)
return;
if (!IsValid(currentCell))
return;
// Prevent unnecessary redraws
//if (currentCell == m_LeftClickDownCell) return;
//else if (currentCell == m_idCurrentCell) return;
SetSelectedRange(min(m_SelectionStartCell.row, row),
min(m_SelectionStartCell.col, col),
max(m_SelectionStartCell.row, row),
max(m_SelectionStartCell.col, col),
bForceRedraw, bSelectCells);
}
// Called when mouse/keyboard selection is a-happening.
void CGridCtrl::OnSelecting(const CCellID& currentCell)
{
if (!m_bEnableSelection)
return;
switch (m_MouseMode)
{
case MOUSE_SELECT_ALL:
SelectAllCells();
break;
case MOUSE_SELECT_COL:
SelectColumns(currentCell, FALSE);
break;
case MOUSE_SELECT_ROW:
SelectRows(currentCell, FALSE);
break;
case MOUSE_SELECT_CELLS:
SelectCells(currentCell, FALSE);
break;
}
// EFW - Bug fix [REMOVED CJM: this will cause infinite loop in list mode]
// SetFocusCell(max(currentCell.row, m_nFixedRows), max(currentCell.col, m_nFixedCols));
}
#ifndef GRIDCONTROL_NO_CLIPBOARD
////////////////////////////////////////////////////////////////////////////////////////
// Clipboard functions
// Deletes the contents from the selected cells
void CGridCtrl::CutSelectedText()
{
if (!IsEditable())
return;
// Clear contents of selected cells.
for (POSITION pos = m_SelectedCellMap.GetStartPosition(); pos != NULL; )
{
DWORD key;
CCellID cell;
m_SelectedCellMap.GetNextAssoc(pos, key, (CCellID&)cell);
if (!IsCellEditable(cell))
continue;
CGridCellBase* pCell = GetCell(cell.row, cell.col);
if (pCell)
{
// don't clear hidden cells
if( m_arRowHeights[ cell.row] > 0
&& m_arColWidths[cell.col] > 0 )
{
SendMessageToParent(cell.row, cell.col, GVN_BEGINLABELEDIT);
pCell->SetText(_T(""));
SetModified(TRUE, cell.row, cell.col);
SendMessageToParent(cell.row, cell.col, GVN_ENDLABELEDIT);
}
}
}
Refresh();
}
// Copies text from the selected cells to the clipboard
COleDataSource* CGridCtrl::CopyTextFromGrid()
{
USES_CONVERSION;
CCellRange Selection = GetSelectedCellRange();
if (!IsValid(Selection))
return NULL;
// Write to shared file (REMEBER: CF_TEXT is ANSI, not UNICODE, so we need to convert)
CSharedFile sf(GMEM_MOVEABLE | GMEM_DDESHARE | GMEM_ZEROINIT);
// Get a tab delimited string to copy to cache
CString str;
CGridCellBase *pCell;
for (int row = Selection.GetMinRow(); row <= Selection.GetMaxRow(); row++)
{
// don't copy hidden cells
if( m_arRowHeights[row] <= 0 )
continue;
str.Empty();
for (int col = Selection.GetMinCol(); col <= Selection.GetMaxCol(); col++)
{
// don't copy hidden cells
if( m_arColWidths[col] <= 0 )
continue;
pCell = GetCell(row, col);
if (pCell &&(pCell->GetState() & GVIS_SELECTED))
{
// if (!pCell->GetText())
// str += _T(" ");
// else
str += pCell->GetText();
}
if (col != Selection.GetMaxCol())
str += _T("t");
}
if (row != Selection.GetMaxRow())
str += _T("n");
sf.Write(T2A(str.GetBuffer(1)), str.GetLength());
str.ReleaseBuffer();
}
char c = '';
sf.Write(&c, 1);
DWORD dwLen = sf.GetLength();
HGLOBAL hMem = sf.Detach();
if (!hMem)
return NULL;
hMem = ::GlobalReAlloc(hMem, dwLen, GMEM_MOVEABLE | GMEM_DDESHARE | GMEM_ZEROINIT);
if (!hMem)
return NULL;
// Cache data
COleDataSource* pSource = new COleDataSource();
pSource->CacheGlobalData(CF_TEXT, hMem);
return pSource;
}
// Pastes text from the clipboard to the selected cells
BOOL CGridCtrl::PasteTextToGrid(CCellID cell, COleDataObject* pDataObject)
{
if (!IsValid(cell) || !IsCellEditable(cell) || !pDataObject->IsDataAvailable(CF_TEXT))
return FALSE;
// Get the text from the COleDataObject
HGLOBAL hmem = pDataObject->GetGlobalData(CF_TEXT);
CMemFile sf((BYTE*) ::GlobalLock(hmem), ::GlobalSize(hmem));
// CF_TEXT is ANSI text, so we need to allocate a char* buffer
// to hold this.
LPSTR szBuffer = new char[::GlobalSize(hmem)];
if (!szBuffer)
return FALSE;
sf.Read(szBuffer, ::GlobalSize(hmem));
::GlobalUnlock(hmem);
// Now store in generic TCHAR form so we no longer have to deal with
// ANSI/UNICODE problems
CString strText = szBuffer;
delete szBuffer;
// Parse text data and set in cells...
strText.LockBuffer();
CString strLine = strText;
int nLine = 0;
// Find the end of the first line
int nIndex;
do
{
int nColumn = 0;
nIndex = strLine.Find(_T("n"));
// Store the remaining chars after the newline
CString strNext = (nIndex < 0)? _T("") : strLine.Mid(nIndex + 1);
// Remove all chars after the newline
if (nIndex >= 0)
strLine = strLine.Left(nIndex);
// Make blank entries a "space"
if (strLine.IsEmpty() && nIndex >= 0)
strLine = _T(" ");
LPTSTR szLine = strLine.GetBuffer(1);
// Break the current line into tokens (tab or comma delimited)
LPTSTR pszCellText = _tcstok(szLine, _T("t,n"));
// skip hidden rows
int iRowVis = cell.row + nLine;
while( iRowVis < GetRowCount())
{
if( GetRowHeight( iRowVis) > 0)
break;
nLine++;
iRowVis++;
}
while (pszCellText != NULL)
{
// skip hidden columns
int iColVis = cell.col + nColumn;
while( iColVis < GetColumnCount())
{
if( GetColumnWidth( iColVis) > 0)
break;
nColumn++;
iColVis++;
}
CCellID TargetCell(iRowVis, iColVis);
if (IsValid(TargetCell))
{
CString strCellText = pszCellText;
strCellText.TrimLeft();
strCellText.TrimRight();
SendMessageToParent(TargetCell.row, TargetCell.col, GVN_BEGINLABELEDIT);
SetItemText(TargetCell.row, TargetCell.col, strCellText);
SetModified(TRUE, TargetCell.row, TargetCell.col);
SendMessageToParent(TargetCell.row, TargetCell.col, GVN_ENDLABELEDIT);
// Make sure cell is not selected to avoid data loss
SetItemState(TargetCell.row, TargetCell.col,
GetItemState(TargetCell.row, TargetCell.col) & ~GVIS_SELECTED);
}
pszCellText = _tcstok(NULL, _T("t,n"));
nColumn++;
}
strLine.ReleaseBuffer();
strLine = strNext;
nLine++;
} while (nIndex >= 0);
strText.UnlockBuffer();
Refresh();
return TRUE;
}
#endif
#ifndef GRIDCONTROL_NO_DRAGDROP
// Start drag n drop
void CGridCtrl::OnBeginDrag()
{
if (!m_bAllowDragAndDrop)
return;
COleDataSource* pSource = CopyTextFromGrid();
if (pSource)
{
SendMessageToParent(GetSelectedCellRange().GetTopLeft().row,
GetSelectedCellRange().GetTopLeft().col,
GVN_BEGINDRAG);
m_MouseMode = MOUSE_DRAGGING;
DROPEFFECT dropEffect = pSource->DoDragDrop(DROPEFFECT_COPY | DROPEFFECT_MOVE);
if (dropEffect & DROPEFFECT_MOVE)
CutSelectedText();
if (pSource)
delete pSource; // Did not pass source to clipboard, so must delete
}
}
// Handle drag over grid
DROPEFFECT CGridCtrl::OnDragOver(COleDataObject* pDataObject, DWORD dwKeyState,
CPoint point)
{
// Any text data available for us?
if (!m_bAllowDragAndDrop || !IsEditable() || !pDataObject->IsDataAvailable(CF_TEXT))
return DROPEFFECT_NONE;
// Find which cell we are over and drop-highlight it
CCellID cell = GetCellFromPt(point, FALSE);
// If not valid, set the previously drop-highlighted cell as no longer drop-highlighted
if (!IsValid(cell))
{
OnDragLeave();
m_LastDragOverCell = CCellID(-1,-1);
return DROPEFFECT_NONE;
}
if (!IsCellEditable(cell))
return DROPEFFECT_NONE;
// Have we moved over a different cell than last time?
if (cell != m_LastDragOverCell)
{
// Set the previously drop-highlighted cell as no longer drop-highlighted
if (IsValid(m_LastDragOverCell))
{
UINT nState = GetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col);
SetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col,
nState & ~GVIS_DROPHILITED);
RedrawCell(m_LastDragOverCell);
}
m_LastDragOverCell = cell;
// Set the new cell as drop-highlighted
if (IsValid(m_LastDragOverCell))
{
UINT nState = GetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col);
SetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col,
nState | GVIS_DROPHILITED);
RedrawCell(m_LastDragOverCell);
}
}
// Return an appropraite value of DROPEFFECT so mouse cursor is set properly
if (dwKeyState & MK_CONTROL)
return DROPEFFECT_COPY;
else
return DROPEFFECT_MOVE;
}
// Something has just been dragged onto the grid
DROPEFFECT CGridCtrl::OnDragEnter(COleDataObject* pDataObject, DWORD dwKeyState,
CPoint point)
{
// Any text data available for us?
if (!m_bAllowDragAndDrop || !pDataObject->IsDataAvailable(CF_TEXT))
return DROPEFFECT_NONE;
// Find which cell we are over and drop-highlight it
m_LastDragOverCell = GetCellFromPt(point, FALSE);
if (!IsValid(m_LastDragOverCell))
return DROPEFFECT_NONE;
if (!IsCellEditable(m_LastDragOverCell))
return DROPEFFECT_NONE;
if (IsValid(m_LastDragOverCell))
{
UINT nState = GetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col);
SetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col,
nState | GVIS_DROPHILITED);
RedrawCell(m_LastDragOverCell);
}
// Return an appropraite value of DROPEFFECT so mouse cursor is set properly
if (dwKeyState & MK_CONTROL)
return DROPEFFECT_COPY;
else
return DROPEFFECT_MOVE;
}
// Something has just been dragged away from the grid
void CGridCtrl::OnDragLeave()
{
// Set the previously drop-highlighted cell as no longer drop-highlighted
if (IsValid(m_LastDragOverCell))
{
UINT nState = GetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col);
SetItemState(m_LastDragOverCell.row, m_LastDragOverCell.col,
nState & ~GVIS_DROPHILITED);
RedrawCell(m_LastDragOverCell);
}
}
// Something has just been dropped onto the grid
BOOL CGridCtrl::OnDrop(COleDataObject* pDataObject, DROPEFFECT /*dropEffect*/,
CPoint /* point */)
{
if (!m_bAllowDragAndDrop || !IsCellEditable(m_LastDragOverCell))
return FALSE;
m_MouseMode = MOUSE_NOTHING;
OnDragLeave();
return PasteTextToGrid(m_LastDragOverCell, pDataObject);
}
#endif
#ifndef GRIDCONTROL_NO_CLIPBOARD
void CGridCtrl::OnEditCut()
{
if (!IsEditable())
return;
COleDataSource* pSource = CopyTextFromGrid();
if (!pSource)
return;
pSource->SetClipboard();
CutSelectedText();
}
void CGridCtrl::OnEditCopy()
{
COleDataSource* pSource = CopyTextFromGrid();
if (!pSource)
return;
pSource->SetClipboard();
}
void CGridCtrl::OnEditPaste()
{
if (!IsEditable())
return;
// Get the Focus cell, or if none, get the topleft (non-fixed) cell
CCellID cell = GetFocusCell();
if (!IsValid(cell))
cell = GetTopleftNonFixedCell();
if (!IsValid(cell))
return;
// Attach a COleDataObject to the clipboard and paste the data to the grid
COleDataObject obj;
if (obj.AttachClipboard())
PasteTextToGrid(cell, &obj);
}
#endif
void CGridCtrl::OnEditSelectAll()
{
SelectAllCells();
}
#ifndef GRIDCONTROL_NO_CLIPBOARD
void CGridCtrl::OnUpdateEditCopy(CCmdUI* pCmdUI)
{
CCellRange Selection = GetSelectedCellRange();
pCmdUI->Enable(Selection.Count() && IsValid(Selection));
}
void CGridCtrl::OnUpdateEditCut(CCmdUI* pCmdUI)
{
CCellRange Selection = GetSelectedCellRange();
pCmdUI->Enable(IsEditable() && Selection.Count() && IsValid(Selection));
}
void CGridCtrl::OnUpdateEditPaste(CCmdUI* pCmdUI)
{
CCellID cell = GetFocusCell();
BOOL bCanPaste = IsValid(cell) && IsCellEditable(cell) &&
::IsClipboardFormatAvailable(CF_TEXT);
pCmdUI->Enable(bCanPaste);
}
#endif
void CGridCtrl::OnUpdateEditSelectAll(CCmdUI* pCmdUI)
{
pCmdUI->Enable(m_bEnableSelection);
}
////////////////////////////////////////////////////////////////////////////////////////
// hittest-like functions
// TRUE if the mouse is over a row resize area
BOOL CGridCtrl::MouseOverRowResizeArea(CPoint& point)
{
if (point.x >= GetFixedColumnWidth())
return FALSE;
CCellID idCurrentCell = GetCellFromPt(point);
CPoint start;
if (!GetCellOrigin(idCurrentCell, &start))
return FALSE;
int endy = start.y + GetRowHeight(idCurrentCell.row);
if ((point.y - start.y <= m_nResizeCaptureRange && idCurrentCell.row != 0) ||
endy - point.y <= m_nResizeCaptureRange)
{
return TRUE;
}
else
return FALSE;
}
// TRUE if the mouse is over a column resize area. point is in Client coords
BOOL CGridCtrl::MouseOverColumnResizeArea(CPoint& point)
{
if (point.y >= GetFixedRowHeight())
return FALSE;
CCellID idCurrentCell = GetCellFromPt(point);
CPoint start;
if (!GetCellOrigin(idCurrentCell, &start))
return FALSE;
int endx = start.x + GetColumnWidth(idCurrentCell.col);
if ((point.x - start.x <= m_nResizeCaptureRange && idCurrentCell.col != 0) ||
endx - point.x <= m_nResizeCaptureRange)
{
return TRUE;
}
else
return FALSE;
}
// Get cell from point
CCellID CGridCtrl::GetCellFromPt(CPoint point, BOOL bAllowFixedCellCheck /*=TRUE*/)
{
CCellID cellID; // return value
CCellID idTopLeft = GetTopleftNonFixedCell();
if (!IsValid(idTopLeft))
return cellID;
// calculate column index
int fixedColWidth = GetFixedColumnWidth();
if (point.x < 0 || (!bAllowFixedCellCheck && point.x < fixedColWidth)) // not in window
cellID.col = -1;
else if (point.x < fixedColWidth) // in fixed col
{
int xpos = 0;
for (int col = 0; col < m_nFixedCols; col++)
{
xpos += GetColumnWidth(col);
if (xpos > point.x)
break;
}
cellID.col = col;
}
else // in non-fixed col
{
int xpos = fixedColWidth;
for (int col = idTopLeft.col; col < GetColumnCount(); col++)
{
xpos += GetColumnWidth(col);
if (xpos > point.x)
break;
}
if (col >= GetColumnCount())
cellID.col = -1;
else
cellID.col = col;
}
// calculate row index
int fixedRowHeight = GetFixedRowHeight();
if (point.y < 0 || (!bAllowFixedCellCheck && point.y < fixedRowHeight)) // not in window
cellID.row = -1;
else if (point.y < fixedRowHeight) // in fixed col
{
int ypos = 0;
for (int row = 0; row < m_nFixedRows; row++)
{
ypos += GetRowHeight(row);
if (ypos > point.y)
break;
}
cellID.row = row;
}
else
{
int ypos = fixedRowHeight;
for (int row = idTopLeft.row; row < GetRowCount(); row++)
{
ypos += GetRowHeight(row);
if (ypos > point.y)
break;
}
if (row >= GetRowCount())
cellID.row = -1;
else
cellID.row = row;
}
return cellID;
}
////////////////////////////////////////////////////////////////////////////////
// CGridCtrl cellrange functions
// Gets the first non-fixed cell ID
CCellID CGridCtrl::GetTopleftNonFixedCell()
{
// Used cached value if possible
if (m_idTopLeftCell.IsValid())
return m_idTopLeftCell;
int nVertScroll = GetScrollPos(SB_VERT),
nHorzScroll = GetScrollPos(SB_HORZ);
m_idTopLeftCell.col = m_nFixedCols;
int nRight = 0;
while (nRight < nHorzScroll && m_idTopLeftCell.col < (GetColumnCount()-1))
nRight += GetColumnWidth(m_idTopLeftCell.col++);
m_idTopLeftCell.row = m_nFixedRows;
int nTop = 0;
while (nTop < nVertScroll && m_idTopLeftCell.row < (GetRowCount()-1))
nTop += GetRowHeight(m_idTopLeftCell.row++);
//TRACE2("TopLeft cell is row %d, col %dn",m_idTopLeftCell.row, m_idTopLeftCell.col);
return m_idTopLeftCell;
}
// This gets even partially visible cells
CCellRange CGridCtrl::GetVisibleNonFixedCellRange(LPRECT pRect /*=NULL*/)
{
CRect rect;
GetClientRect(rect);
CCellID idTopLeft = GetTopleftNonFixedCell();
// calc bottom
int bottom = GetFixedRowHeight();
for (int i = idTopLeft.row; i < GetRowCount(); i++)
{
bottom += GetRowHeight(i);
if (bottom >= rect.bottom)
{
bottom = rect.bottom;
break;
}
}
int maxVisibleRow = min(i, GetRowCount() - 1);
// calc right
int right = GetFixedColumnWidth();
for (i = idTopLeft.col; i < GetColumnCount(); i++)
{
right += GetColumnWidth(i);
if (right >= rect.right)
{
right = rect.right;
break;
}
}
int maxVisibleCol = min(i, GetColumnCount() - 1);
if (pRect)
{
pRect->left = pRect->top = 0;
pRect->right = right;
pRect->bottom = bottom;
}
return CCellRange(idTopLeft.row, idTopLeft.col, maxVisibleRow, maxVisibleCol);
}
// used by ResetScrollBars() - This gets only fully visible cells
CCellRange CGridCtrl::GetUnobstructedNonFixedCellRange()
{
CRect rect;
GetClientRect(rect);
CCellID idTopLeft = GetTopleftNonFixedCell();
// calc bottom
int bottom = GetFixedRowHeight();
for (int i = idTopLeft.row; i < GetRowCount(); i++)
{
bottom += GetRowHeight(i);
if (bottom >= rect.bottom)
break;
}
int maxVisibleRow = min(i, GetRowCount() - 1);
if (maxVisibleRow > 0 && bottom > rect.bottom)
maxVisibleRow--;
// calc right
int right = GetFixedColumnWidth();
for (i = idTopLeft.col; i < GetColumnCount(); i++)
{
right += GetColumnWidth(i);
if (right >= rect.right)
break;
}
int maxVisibleCol = min(i, GetColumnCount() - 1);
if (maxVisibleCol > 0 && right > rect.right)
maxVisibleCol--;
return CCellRange(idTopLeft.row, idTopLeft.col, maxVisibleRow, maxVisibleCol);
}
// Returns the minimum bounding range of the current selection
// If no selection, then the returned CCellRange will be invalid
CCellRange CGridCtrl::GetSelectedCellRange() const
{
CCellRange Selection(GetRowCount(), GetColumnCount(), -1,-1);
for (POSITION pos = m_SelectedCellMap.GetStartPosition(); pos != NULL; )
{
DWORD key;
CCellID cell;
m_SelectedCellMap.GetNextAssoc(pos, key, (CCellID&)cell);
Selection.SetMinRow( min(Selection.GetMinRow(), cell.row) );
Selection.SetMinCol( min(Selection.GetMinCol(), cell.col) );
Selection.SetMaxRow( max(Selection.GetMaxRow(), cell.row) );
Selection.SetMaxCol( max(Selection.GetMaxCol(), cell.col) );
}
return Selection;
}
// Returns ALL the cells in the grid
CCellRange CGridCtrl::GetCellRange() const
{
return CCellRange(0, 0, GetRowCount() - 1, GetColumnCount() - 1);
}
// Resets the selected cell range to the empty set.
void CGridCtrl::ResetSelectedRange()
{
m_PrevSelectedCellMap.RemoveAll();
SetSelectedRange(-1,-1,-1,-1);
SetFocusCell(-1,-1);
}
// Get/Set scroll position using 32 bit functions
int CGridCtrl::GetScrollPos32(int nBar, BOOL bGetTrackPos /* = FALSE */)
{
SCROLLINFO si;
si.cbSize = sizeof(SCROLLINFO);
if (bGetTrackPos)
{
if (GetScrollInfo(nBar, &si, SIF_TRACKPOS))
return si.nTrackPos;
}
else
{
if (GetScrollInfo(nBar, &si, SIF_POS))
return si.nPos;
}
return 0;
}
BOOL CGridCtrl::SetScrollPos32(int nBar, int nPos, BOOL bRedraw /* = TRUE */)
{
m_idTopLeftCell.row = -1;
SCROLLINFO si;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_POS;
si.nPos = nPos;
return SetScrollInfo(nBar, &si, bRedraw);
}
void CGridCtrl::EnableScrollBars(int nBar, BOOL bEnable /*=TRUE*/)
{
if (bEnable)
{
if (!IsVisibleHScroll() && (nBar == SB_HORZ || nBar == SB_BOTH))
{
CWnd::EnableScrollBarCtrl(SB_HORZ, bEnable);
m_nBarState |= GVL_HORZ;
}
if (!IsVisibleVScroll() && (nBar == SB_VERT || nBar == SB_BOTH))
{
CWnd::EnableScrollBarCtrl(SB_VERT, bEnable);
m_nBarState |= GVL_VERT;
}
}
else
{
if ( IsVisibleHScroll() && (nBar == SB_HORZ || nBar == SB_BOTH))
{
CWnd::EnableScrollBarCtrl(SB_HORZ, bEnable);
m_nBarState &= ~GVL_HORZ;
}
if ( IsVisibleVScroll() && (nBar == SB_VERT || nBar == SB_BOTH))
{
CWnd::EnableScrollBarCtrl(SB_VERT, bEnable);
m_nBarState &= ~GVL_VERT;
}
}
}
// If resizing or cell counts/sizes change, call this - it'll fix up the scroll bars
void CGridCtrl::ResetScrollBars()
{
// Force a refresh.
m_idTopLeftCell.row = -1;
if (!m_bAllowDraw || !::IsWindow(GetSafeHwnd()))
return;
CRect rect;
// This would have caused OnSize event - Brian
//EnableScrollBars(SB_BOTH, FALSE);
GetClientRect(rect);
if (rect.left == rect.right || rect.top == rect.bottom)
return;
if (IsVisibleVScroll())
rect.right += GetSystemMetrics(SM_CXVSCROLL) + GetSystemMetrics(SM_CXBORDER);
if (IsVisibleHScroll())
rect.bottom += GetSystemMetrics(SM_CYHSCROLL) + GetSystemMetrics(SM_CYBORDER);
rect.left += GetFixedColumnWidth();
rect.top += GetFixedRowHeight();
if (rect.left >= rect.right || rect.top >= rect.bottom)
{
EnableScrollBarCtrl(SB_BOTH, FALSE);
return;
}
CRect VisibleRect(GetFixedColumnWidth(), GetFixedRowHeight(), rect.right, rect.bottom);
CRect VirtualRect(GetFixedColumnWidth(), GetFixedRowHeight(), GetVirtualWidth(), GetVirtualHeight());
// Removed to fix single row scrollbar problem (Pontus Goffe)
// CCellRange visibleCells = GetUnobstructedNonFixedCellRange();
// if (!IsValid(visibleCells)) return;
//TRACE(_T("Visible: %d x %d, Virtual %d x %d. H %d, V %dn"),
// VisibleRect.Width(), VisibleRect.Height(),
// VirtualRect.Width(), VirtualRect.Height(),
// IsVisibleHScroll(), IsVisibleVScroll());
// If vertical scroll bar, horizontal space is reduced
if (VisibleRect.Height() < VirtualRect.Height())
VisibleRect.right -= ::GetSystemMetrics(SM_CXVSCROLL);
// If horz scroll bar, vert space is reduced
if (VisibleRect.Width() < VirtualRect.Width())
VisibleRect.bottom -= ::GetSystemMetrics(SM_CYHSCROLL);
// Recheck vertical scroll bar
//if (VisibleRect.Height() < VirtualRect.Height())
// VisibleRect.right -= ::GetSystemMetrics(SM_CXVSCROLL);
if (VisibleRect.Height() < VirtualRect.Height())
{
EnableScrollBars(SB_VERT, TRUE);
m_nVScrollMax = VirtualRect.Height() - 1;
}
else
{
EnableScrollBars(SB_VERT, FALSE);
m_nVScrollMax = 0;
}
if (VisibleRect.Width() < VirtualRect.Width())
{
EnableScrollBars(SB_HORZ, TRUE);
m_nHScrollMax = VirtualRect.Width() - 1;
}
else
{
EnableScrollBars(SB_HORZ, FALSE);
m_nHScrollMax = 0;
}
ASSERT(m_nVScrollMax < INT_MAX && m_nHScrollMax < INT_MAX); // This should be fine
SCROLLINFO si;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_PAGE;
si.nPage = (m_nHScrollMax>0)? VisibleRect.Width() : 0;
SetScrollInfo(SB_HORZ, &si, FALSE);
si.nPage = (m_nVScrollMax>0)? VisibleRect.Height() : 0;
SetScrollInfo(SB_VERT, &si, FALSE);
SetScrollRange(SB_VERT, 0, m_nVScrollMax, TRUE);
SetScrollRange(SB_HORZ, 0, m_nHScrollMax, TRUE);
//TRACE(_T("H scroll: %d, V Scroll %dn"), m_nHScrollMax, m_nVScrollMax);
}
////////////////////////////////////////////////////////////////////////////////////
// Row/Column position functions
// returns the top left point of the cell. Returns FALSE if cell not visible.
BOOL CGridCtrl::GetCellOrigin(int nRow, int nCol, LPPOINT p)
{
int i;
if (!IsValid(nRow, nCol))
return FALSE;
CCellID idTopLeft;
if (nCol >= m_nFixedCols || nRow >= m_nFixedRows)
idTopLeft = GetTopleftNonFixedCell();
if ((nRow >= m_nFixedRows && nRow < idTopLeft.row) ||
(nCol>= m_nFixedCols && nCol < idTopLeft.col))
return FALSE;
p->x = 0;
if (nCol < m_nFixedCols) // is a fixed column
for (i = 0; i < nCol; i++)
p->x += GetColumnWidth(i);
else
{ // is a scrollable data column
for (i = 0; i < m_nFixedCols; i++)
p->x += GetColumnWidth(i);
for (i = idTopLeft.col; i < nCol; i++)
p->x += GetColumnWidth(i);
}
p->y = 0;
if (nRow < m_nFixedRows) // is a fixed row
for (i = 0; i < nRow; i++)
p->y += GetRowHeight(i);
else
{ // is a scrollable data row
for (i = 0; i < m_nFixedRows; i++)
p->y += GetRowHeight(i);
for (i = idTopLeft.row; i < nRow; i++)
p->y += GetRowHeight(i);
}
return TRUE;
}
BOOL CGridCtrl::GetCellOrigin(const CCellID& cell, LPPOINT p)
{
return GetCellOrigin(cell.row, cell.col, p);
}
// Returns the bounding box of the cell
BOOL CGridCtrl::GetCellRect(const CCellID& cell, LPRECT pRect)
{
return GetCellRect(cell.row, cell.col, pRect);
}
BOOL CGridCtrl::GetCellRect(int nRow, int nCol, LPRECT pRect)
{
CPoint CellOrigin;
if (!GetCellOrigin(nRow, nCol, &CellOrigin))
return FALSE;
pRect->left = CellOrigin.x;
pRect->top = CellOrigin.y;
pRect->right = CellOrigin.x + GetColumnWidth(nCol)-1;
pRect->bottom = CellOrigin.y + GetRowHeight(nRow)-1;
//TRACE("Row %d, col %d: L %d, T %d, W %d, H %d: %d,%d - %d,%dn",
// nRow,nCol, CellOrigin.x, CellOrigin.y, GetColumnWidth(nCol), GetRowHeight(nRow),
// pRect->left, pRect->top, pRect->right, pRect->bottom);
return TRUE;
}
BOOL CGridCtrl::GetTextRect(const CCellID& cell, LPRECT pRect)
{
return GetTextRect(cell.row, cell.col, pRect);
}
BOOL CGridCtrl::GetTextRect(int nRow, int nCol, LPRECT pRect)
{
CGridCellBase* pCell = GetCell( nRow, nCol);
if( pCell == NULL)
return FALSE;
if( !GetCellRect( nRow, nCol, pRect) )
return FALSE;
return pCell->GetTextRect( pRect);
}
// Returns the bounding box of a range of cells
BOOL CGridCtrl::GetCellRangeRect(const CCellRange& cellRange, LPRECT lpRect)
{
CPoint MinOrigin,MaxOrigin;
if (!GetCellOrigin(cellRange.GetMinRow(), cellRange.GetMinCol(), &MinOrigin))
return FALSE;
if (!GetCellOrigin(cellRange.GetMaxRow(), cellRange.GetMaxCol(), &MaxOrigin))
return FALSE;
lpRect->left = MinOrigin.x;
lpRect->top = MinOrigin.y;
lpRect->right = MaxOrigin.x + GetColumnWidth(cellRange.GetMaxCol()) - 1;
lpRect->bottom = MaxOrigin.y + GetRowHeight(cellRange.GetMaxRow()) - 1;
return TRUE;
}
////////////////////////////////////////////////////////////////////////////////////
// Grid attribute functions
LRESULT CGridCtrl::OnSetFont(WPARAM hFont, LPARAM /*lParam */)
{
LRESULT result = Default();
// Get the logical font
LOGFONT lf;
if (!GetObject((HFONT) hFont, sizeof(LOGFONT), &lf))
return result;
m_cellDefault.SetFont(&lf);
m_cellFixedColDef.SetFont(&lf);
m_cellFixedRowDef.SetFont(&lf);
m_cellFixedRowColDef.SetFont(&lf);
Refresh();
return result;
}
LRESULT CGridCtrl::OnGetFont(WPARAM /*wParam*/, LPARAM /*lParam*/)
{
//LOGFONT lf;
//m_cellDefault.GetFontObject()->GetLogFont(&lf);
return (LRESULT) m_cellDefault.GetFontObject()->GetSafeHandle();
}
#ifndef _WIN32_WCE_NO_CURSOR
BOOL CGridCtrl::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
if (nHitTest == HTCLIENT)
{
switch (m_MouseMode)
{
case MOUSE_OVER_COL_DIVIDE:
SetCursor(AfxGetApp()->LoadStandardCursor(IDC_SIZEWE));
break;
case MOUSE_OVER_ROW_DIVIDE:
SetCursor(AfxGetApp()->LoadStandardCursor(IDC_SIZENS));
break;
#ifndef GRIDCONTROL_NO_DRAGDROP
case MOUSE_DRAGGING:
break;
#endif
default:
if (!GetVirtualMode())
{
CPoint pt(GetMessagePos());
ScreenToClient(&pt);
CCellID cell = GetCellFromPt(pt);
if (IsValid(cell))
{
CGridCellBase* pCell = GetCell(cell.row, cell.col);
if (pCell)
return pCell->OnSetCursor();
}
}
SetCursor(AfxGetApp()->LoadStandardCursor(IDC_ARROW));
}
return TRUE;
}
return CWnd::OnSetCursor(pWnd, nHitTest, message);
}
#endif
////////////////////////////////////////////////////////////////////////////////////
// Row/Column count functions
BOOL CGridCtrl::SetFixedRowCount(int nFixedRows)
{
if (m_nFixedRows == nFixedRows)
return TRUE;
ASSERT(nFixedRows >= 0);
ResetSelectedRange();
// Force recalculation
m_idTopLeftCell.col = -1;
if (nFixedRows > GetRowCount())
if (!SetRowCount(nFixedRows))
return FALSE;
if (m_idCurrentCell.row < nFixedRows)
SetFocusCell(-1, - 1);
if (!GetVirtualMode())
{
if (nFixedRows > m_nFixedRows)
{
for (int i = m_nFixedRows; i < nFixedRows; i++)
for (int j = 0; j < GetColumnCount(); j++)
{
SetItemState(i, j, GetItemState(i, j) | GVIS_FIXED | GVIS_FIXEDROW);
SetItemBkColour(i, j, CLR_DEFAULT );
SetItemFgColour(i, j, CLR_DEFAULT );
}
}
else
{
for (int i = nFixedRows; i < m_nFixedRows; i++)
{
for (int j = 0; j < GetFixedColumnCount(); j++)
SetItemState(i, j, GetItemState(i, j) & ~GVIS_FIXEDROW );
for (j = GetFixedColumnCount(); j < GetColumnCount(); j++)
{
SetItemState(i, j, GetItemState(i, j) & ~(GVIS_FIXED | GVIS_FIXEDROW) );
SetItemBkColour(i, j, CLR_DEFAULT );
SetItemFgColour(i, j, CLR_DEFAULT );
}
}
}
}
m_nFixedRows = nFixedRows;
Refresh();
return TRUE;
}
BOOL CGridCtrl::SetFixedColumnCount(int nFixedCols)
{
if (m_nFixedCols == nFixedCols)
return TRUE;
ASSERT(nFixedCols >= 0);
if (nFixedCols > GetColumnCount())
if (!SetColumnCount(nFixedCols))
return FALSE;
if (m_idCurrentCell.col < nFixedCols)
SetFocusCell(-1, - 1);
ResetSelectedRange();
// Force recalculation
m_idTopLeftCell.col = -1;
if (!GetVirtualMode())
{
if (nFixedCols > m_nFixedCols)
{
for (int i = 0; i < GetRowCount(); i++)
for (int j = m_nFixedCols; j < nFixedCols; j++)
{
SetItemState(i, j, GetItemState(i, j) | GVIS_FIXED | GVIS_FIXEDCOL);
SetItemBkColour(i, j, CLR_DEFAULT );
SetItemFgColour(i, j, CLR_DEFAULT );
}
}
else
{
for (int i = 0; i < GetFixedRowCount(); i++)
for (int j = nFixedCols; j < m_nFixedCols; j++)
SetItemState(i, j, GetItemState(i, j) & ~GVIS_FIXEDCOL );
for (i = GetFixedRowCount(); i < GetRowCount(); i++)
for (int j = nFixedCols; j < m_nFixedCols; j++)
{
SetItemState(i, j, GetItemState(i, j) & ~(GVIS_FIXED | GVIS_FIXEDCOL) );
SetItemBkColour(i, j, CLR_DEFAULT );
SetItemFgColour(i, j, CLR_DEFAULT );
}
}
}
m_nFixedCols = nFixedCols;
Refresh();
return TRUE;
}
BOOL CGridCtrl::SetRowCount(int nRows)
{
BOOL bResult = TRUE;
ASSERT(nRows >= 0);
if (nRows == GetRowCount())
return bResult;
// Force recalculation
m_idTopLeftCell.col = -1;
if (nRows < m_nFixedRows)
m_nFixedRows = nRows;
if (m_idCurrentCell.row >= nRows)
SetFocusCell(-1, - 1);
int addedRows = nRows - GetRowCount();
// If we are about to lose rows, then we need to delete the GridCell objects
// in each column within each row
if (addedRows < 0)
{
if (!GetVirtualMode())
{
for (int row = nRows; row < m_nRows; row++)
{
// Delete cells
for (int col = 0; col < m_nCols; col++)
DestroyCell(row, col);
// Delete rows
GRID_ROW* pRow = m_RowData[row];
if (pRow)
delete pRow;
}
}
m_nRows = nRows;
}
TRY
{
m_arRowHeights.SetSize(nRows);
if (GetVirtualMode())
{
m_nRows = nRows;
if (addedRows > 0)
{
int startRow = nRows - addedRows;
for (int row = startRow; row < nRows; row++)
m_arRowHeights[row] = m_cellDefault.GetHeight();
}
}
else
{
// Change the number of rows.
m_RowData.SetSize(nRows);
// If we have just added rows, we need to construct new elements for each cell
// and set the default row height
if (addedRows > 0)
{
// initialize row heights and data
int startRow = nRows - addedRows;
for (int row = startRow; row < nRows; row++)
{
m_arRowHeights[row] = m_cellDefault.GetHeight();
m_RowData[row] = new GRID_ROW;
m_RowData[row]->SetSize(m_nCols);
for (int col = 0; col < m_nCols; col++)
{
GRID_ROW* pRow = m_RowData[row];
if (pRow && !GetVirtualMode())
pRow->SetAt(col, CreateCell(row, col));
}
m_nRows++;
}
}
}
}
CATCH (CMemoryException, e)
{
e->ReportError();
bResult = FALSE;
}
END_CATCH
SetModified();
ResetScrollBars();
Refresh();
return TRUE;
}
BOOL CGridCtrl::SetColumnCount(int nCols)
{
BOOL bResult = TRUE;
ASSERT(nCols >= 0);
if (nCols == GetColumnCount())
return bResult;
// Force recalculation
m_idTopLeftCell.col = -1;
if (nCols < m_nFixedCols)
m_nFixedCols = nCols;
if (m_idCurrentCell.col >= nCols)
SetFocusCell(-1, - 1);
int addedCols = nCols - GetColumnCount();
// If we are about to lose columns, then we need to delete the GridCell objects
// within each column
if (addedCols < 0 && !GetVirtualMode())
{
for (int row = 0; row < m_nRows; row++)
for (int col = nCols; col < GetColumnCount(); col++)
DestroyCell(row, col);
}
TRY
{
// Change the number of columns.
m_arColWidths.SetSize(nCols);
// Change the number of columns in each row.
if (!GetVirtualMode())
for (int i = 0; i < m_nRows; i++)
if (m_RowData[i])
m_RowData[i]->SetSize(nCols);
// If we have just added columns, we need to construct new elements for each cell
// and set the default column width
if (addedCols > 0)
{
// initialized column widths