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- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992-1998 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and related
- // electronic documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
-
- #include "stdafx.h"
-
- #ifdef AFX_CORE4_SEG
- #pragma code_seg(AFX_CORE4_SEG)
- #endif
-
- #ifdef _DEBUG
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
-
- #define new DEBUG_NEW
-
- /////////////////////////////////////////////////////////////////////////////
- // _AFX_CHECKLIST_STATE
-
- class _AFX_CHECKLIST_STATE : public CNoTrackObject
- {
- public:
- _AFX_CHECKLIST_STATE();
- virtual ~_AFX_CHECKLIST_STATE();
-
- HBITMAP m_hbitmapCheck;
- CSize m_sizeCheck;
- };
-
- _AFX_CHECKLIST_STATE::_AFX_CHECKLIST_STATE()
- {
- CBitmap bitmap;
-
- #ifndef _AFX_NO_CTL3D_SUPPORT
- if (afxData.bWin4 || AfxGetCtl3dState()->m_pfnSubclassDlgEx != NULL)
- #else
- if (afxData.bWin4)
- #endif
- VERIFY(bitmap.LoadBitmap(AFX_IDB_CHECKLISTBOX_95));
- else
- VERIFY(bitmap.LoadBitmap(AFX_IDB_CHECKLISTBOX_NT));
-
- BITMAP bm;
- bitmap.GetObject(sizeof (BITMAP), &bm);
- m_sizeCheck.cx = bm.bmWidth / 3;
- m_sizeCheck.cy = bm.bmHeight;
- m_hbitmapCheck = (HBITMAP)bitmap.Detach();
- }
-
- _AFX_CHECKLIST_STATE::~_AFX_CHECKLIST_STATE()
- {
- if (m_hbitmapCheck != NULL)
- ::DeleteObject(m_hbitmapCheck);
- }
-
- EXTERN_PROCESS_LOCAL(_AFX_CHECKLIST_STATE, _afxChecklistState)
-
- /////////////////////////////////////////////////////////////////////////////
- // AFX_CHECK_DATA
-
- struct AFX_CHECK_DATA
- {
- public:
- int m_nCheck;
- BOOL m_bEnabled;
- DWORD m_dwUserData;
-
- AFX_CHECK_DATA()
- {
- m_nCheck = 0;
- m_bEnabled = TRUE;
- m_dwUserData = 0;
- };
- };
-
- /////////////////////////////////////////////////////////////////////////////
- // CCheckListBox
-
- BEGIN_MESSAGE_MAP(CCheckListBox, CListBox)
- //{{AFX_MSG_MAP(CCheckListBox)
- ON_WM_LBUTTONDOWN()
- ON_WM_KEYDOWN()
- ON_WM_CREATE()
- ON_WM_LBUTTONDBLCLK()
- ON_MESSAGE(WM_SETFONT, OnSetFont)
- ON_MESSAGE(LB_ADDSTRING, OnLBAddString)
- ON_MESSAGE(LB_FINDSTRING, OnLBFindString)
- ON_MESSAGE(LB_FINDSTRINGEXACT, OnLBFindStringExact)
- ON_MESSAGE(LB_GETITEMDATA, OnLBGetItemData)
- ON_MESSAGE(LB_GETTEXT, OnLBGetText)
- ON_MESSAGE(LB_INSERTSTRING, OnLBInsertString)
- ON_MESSAGE(LB_SELECTSTRING, OnLBSelectString)
- ON_MESSAGE(LB_SETITEMDATA, OnLBSetItemData)
- ON_MESSAGE(LB_SETITEMHEIGHT, OnLBSetItemHeight)
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
-
- BOOL CCheckListBox::Create(DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID)
- {
- if (!(dwStyle & LBS_OWNERDRAWVARIABLE)) //must be one or the other
- dwStyle |= LBS_OWNERDRAWFIXED;
- return CListBox::Create(dwStyle, rect, pParentWnd, nID);
- }
-
- void CCheckListBox::SetCheckStyle(UINT nStyle)
- {
- ASSERT(nStyle == 0 || nStyle == BS_CHECKBOX ||
- nStyle == BS_AUTOCHECKBOX || nStyle == BS_AUTO3STATE ||
- nStyle == BS_3STATE);
-
- m_nStyle = nStyle;
- }
-
- void CCheckListBox::SetCheck(int nIndex, int nCheck)
- {
- ASSERT(::IsWindow(m_hWnd));
-
- if (nCheck == 2)
- {
- if (m_nStyle == BS_CHECKBOX || m_nStyle == BS_AUTOCHECKBOX)
- return;
- }
-
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, nIndex, 0);
- if (lResult != LB_ERR)
- {
-
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lResult;
-
- if (pState == NULL)
- pState = new AFX_CHECK_DATA;
-
- pState->m_nCheck = nCheck;
- VERIFY(DefWindowProc(LB_SETITEMDATA, nIndex, (LPARAM)pState) != LB_ERR);
-
- InvalidateCheck(nIndex);
- }
- }
-
- int CCheckListBox::GetCheck(int nIndex)
- {
- ASSERT(::IsWindow(m_hWnd));
-
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, nIndex, 0);
- if (lResult != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lResult;
- if (pState != NULL)
- return pState->m_nCheck;
- }
- return 0; // The default
- }
-
- void CCheckListBox::Enable(int nIndex, BOOL bEnabled)
- {
- ASSERT(::IsWindow(m_hWnd));
-
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, nIndex, 0);
- if (lResult != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lResult;
-
- if (pState == NULL)
- pState = new AFX_CHECK_DATA;
-
- pState->m_bEnabled = bEnabled;
- VERIFY(DefWindowProc(LB_SETITEMDATA, nIndex, (LPARAM)pState) != LB_ERR);
-
- InvalidateItem(nIndex);
- }
- }
-
- int CCheckListBox::IsEnabled(int nIndex)
- {
- ASSERT(::IsWindow(m_hWnd));
-
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, nIndex, 0);
- if (lResult != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lResult;
- if (pState != NULL)
- return pState->m_bEnabled;
- }
- return TRUE; // The default
- }
-
- CRect CCheckListBox::OnGetCheckPosition(CRect, CRect rectCheckBox)
- {
- return rectCheckBox;
- }
-
- void CCheckListBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
- {
- // You must override DrawItem and MeasureItem for LBS_OWNERDRAWVARIABLE
- ASSERT((GetStyle() & (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS)) ==
- (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS));
-
- CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
-
- if (((LONG)(lpDrawItemStruct->itemID) >= 0) &&
- (lpDrawItemStruct->itemAction & (ODA_DRAWENTIRE | ODA_SELECT)))
- {
- int cyItem = GetItemHeight(lpDrawItemStruct->itemID);
- BOOL fDisabled = !IsWindowEnabled() || !IsEnabled(lpDrawItemStruct->itemID);
-
- COLORREF newTextColor = fDisabled ?
- RGB(0x80, 0x80, 0x80) : GetSysColor(COLOR_WINDOWTEXT); // light gray
- COLORREF oldTextColor = pDC->SetTextColor(newTextColor);
-
- COLORREF newBkColor = GetSysColor(COLOR_WINDOW);
- COLORREF oldBkColor = pDC->SetBkColor(newBkColor);
-
- if (newTextColor == newBkColor)
- newTextColor = RGB(0xC0, 0xC0, 0xC0); // dark gray
-
- if (!fDisabled && ((lpDrawItemStruct->itemState & ODS_SELECTED) != 0))
- {
- pDC->SetTextColor(GetSysColor(COLOR_HIGHLIGHTTEXT));
- pDC->SetBkColor(GetSysColor(COLOR_HIGHLIGHT));
- }
-
- if (m_cyText == 0)
- VERIFY(cyItem >= CalcMinimumItemHeight());
-
- CString strText;
- GetText(lpDrawItemStruct->itemID, strText);
-
- pDC->ExtTextOut(lpDrawItemStruct->rcItem.left,
- lpDrawItemStruct->rcItem.top + max(0, (cyItem - m_cyText) / 2),
- ETO_OPAQUE, &(lpDrawItemStruct->rcItem), strText, strText.GetLength(), NULL);
-
- pDC->SetTextColor(oldTextColor);
- pDC->SetBkColor(oldBkColor);
- }
-
- if ((lpDrawItemStruct->itemAction & ODA_FOCUS) != 0)
- pDC->DrawFocusRect(&(lpDrawItemStruct->rcItem));
- }
-
- void CCheckListBox::MeasureItem(LPMEASUREITEMSTRUCT)
- {
- // You must override DrawItem and MeasureItem for LBS_OWNERDRAWVARIABLE
- ASSERT((GetStyle() & (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS)) ==
- (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS));
- }
-
- void CCheckListBox::PreDrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
- {
- _AFX_CHECKLIST_STATE* pChecklistState = _afxChecklistState;
-
- DRAWITEMSTRUCT drawItem;
- memcpy(&drawItem, lpDrawItemStruct, sizeof(DRAWITEMSTRUCT));
-
- if ((((LONG)drawItem.itemID) >= 0) &&
- ((drawItem.itemAction & (ODA_DRAWENTIRE | ODA_SELECT)) != 0))
- {
- int cyItem = GetItemHeight(drawItem.itemID);
-
- CDC* pDC = CDC::FromHandle(drawItem.hDC);
-
- COLORREF newBkColor = GetSysColor(COLOR_WINDOW);
-
- BOOL fDisabled = !IsWindowEnabled() || !IsEnabled(drawItem.itemID);
- if ((drawItem.itemState & ODS_SELECTED) && !fDisabled)
- newBkColor = GetSysColor(COLOR_HIGHLIGHT);
-
- COLORREF oldBkColor = pDC->SetBkColor(newBkColor);
-
- CDC bitmapDC;
- if (bitmapDC.CreateCompatibleDC(pDC))
- {
- int nCheck = GetCheck(drawItem.itemID);
- HBITMAP hOldBitmap = (HBITMAP)::SelectObject(bitmapDC.m_hDC, pChecklistState->m_hbitmapCheck);
-
- CRect rectCheck = drawItem.rcItem;
- rectCheck.left += 1;
- rectCheck.top += 1 + max(0, (cyItem - pChecklistState->m_sizeCheck.cy) / 2);
- rectCheck.right = rectCheck.left + pChecklistState->m_sizeCheck.cx;
- rectCheck.bottom = rectCheck.top + pChecklistState->m_sizeCheck.cy;
-
- CRect rectItem = drawItem.rcItem;
- rectItem.right = rectItem.left + pChecklistState->m_sizeCheck.cx + 2;
-
- CRect rectCheckBox = OnGetCheckPosition(rectItem, rectCheck);
-
- ASSERT(rectCheck.IntersectRect(rectItem, rectCheckBox));
- ASSERT((rectCheck == rectCheckBox) && (rectCheckBox.Size() == pChecklistState->m_sizeCheck));
-
- CBrush brush(newBkColor);
- pDC->FillRect(rectItem, &brush);
-
- pDC->BitBlt(rectCheckBox.left, rectCheckBox.top,
- pChecklistState->m_sizeCheck.cx, pChecklistState->m_sizeCheck.cy, &bitmapDC,
- pChecklistState->m_sizeCheck.cx * nCheck, 0, SRCCOPY);
-
- ::SelectObject(bitmapDC.m_hDC, hOldBitmap);
- }
- pDC->SetBkColor(oldBkColor);
- }
-
- if (drawItem.itemData != 0 && drawItem.itemData != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)drawItem.itemData;
- drawItem.itemData = pState->m_dwUserData;
- }
- drawItem.rcItem.left = drawItem.rcItem.left + pChecklistState->m_sizeCheck.cx + 2;
-
- DrawItem(&drawItem);
- }
-
- void CCheckListBox::PreMeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct)
- {
- int cyItem = CalcMinimumItemHeight();
-
- MEASUREITEMSTRUCT measureItem;
- memcpy(&measureItem, lpMeasureItemStruct, sizeof(MEASUREITEMSTRUCT));
-
- measureItem.itemHeight = cyItem;
- measureItem.itemWidth = (UINT)-1;
-
- // WINBUG: Windows95 and Windows NT disagree on what this value
- // should be. According to the docs, they are both wrong
- if (GetStyle() & LBS_OWNERDRAWVARIABLE)
- {
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, measureItem.itemID, 0);
- if (lResult != LB_ERR)
- measureItem.itemData = (UINT)lResult;
- else
- measureItem.itemData = 0;
-
- // WINBUG: This is only done in the LBS_OWNERDRAWVARIABLE case
- // because Windows 95 does not initialize itemData to zero in the
- // case of LBS_OWNERDRAWFIXED list boxes (it is stack garbage).
- if (measureItem.itemData != 0 && measureItem.itemData != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)measureItem.itemData;
- measureItem.itemData = pState->m_dwUserData;
- }
- }
-
- MeasureItem(&measureItem);
-
- lpMeasureItemStruct->itemHeight = max(measureItem.itemHeight,(UINT) cyItem);
- lpMeasureItemStruct->itemWidth = measureItem.itemWidth;
- }
-
- int CCheckListBox::PreCompareItem(LPCOMPAREITEMSTRUCT lpCompareItemStruct)
- {
- COMPAREITEMSTRUCT compareItem;
- memcpy(&compareItem, lpCompareItemStruct, sizeof(COMPAREITEMSTRUCT));
-
- if (compareItem.itemData1 != 0 && compareItem.itemData1 != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)compareItem.itemData1;
- compareItem.itemData1 = pState->m_dwUserData;
- }
- if (compareItem.itemData2 != 0 && compareItem.itemData2 != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)compareItem.itemData2;
- compareItem.itemData2 = pState->m_dwUserData;
- }
- return CompareItem(&compareItem);
- }
-
- void CCheckListBox::PreDeleteItem(LPDELETEITEMSTRUCT lpDeleteItemStruct)
- {
- DELETEITEMSTRUCT deleteItem;
- memcpy(&deleteItem, lpDeleteItemStruct, sizeof(DELETEITEMSTRUCT));
-
- // WINBUG: The following if block is required because Windows NT
- // version 3.51 does not properly fill out the LPDELETEITEMSTRUCT.
- if (deleteItem.itemData == 0)
- {
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, deleteItem.itemID, 0);
- if (lResult != LB_ERR)
- deleteItem.itemData = (UINT)lResult;
- }
-
- if (deleteItem.itemData != 0 && deleteItem.itemData != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)deleteItem.itemData;
- deleteItem.itemData = pState->m_dwUserData;
- delete pState;
- }
- DeleteItem(&deleteItem);
- }
-
- BOOL CCheckListBox::OnChildNotify(UINT message, WPARAM wParam, LPARAM lParam,
- LRESULT* pResult)
- {
- switch (message)
- {
- case WM_DRAWITEM:
- ASSERT(pResult == NULL); // no return value expected
- PreDrawItem((LPDRAWITEMSTRUCT)lParam);
- break;
- case WM_MEASUREITEM:
- ASSERT(pResult == NULL); // no return value expected
- PreMeasureItem((LPMEASUREITEMSTRUCT)lParam);
- break;
- case WM_COMPAREITEM:
- ASSERT(pResult != NULL); // return value expected
- *pResult = PreCompareItem((LPCOMPAREITEMSTRUCT)lParam);
- break;
- case WM_DELETEITEM:
- ASSERT(pResult == NULL); // no return value expected
- PreDeleteItem((LPDELETEITEMSTRUCT)lParam);
- break;
- default:
- return CListBox::OnChildNotify(message, wParam, lParam, pResult);
- }
- return TRUE;
- }
-
- #ifdef _DEBUG
- void CCheckListBox::PreSubclassWindow()
- {
- CListBox::PreSubclassWindow();
-
- // CCheckListBoxes must be owner drawn
- ASSERT(GetStyle() & (LBS_OWNERDRAWFIXED | LBS_OWNERDRAWVARIABLE));
- }
- #endif
-
- int CCheckListBox::CalcMinimumItemHeight()
- {
- int nResult;
-
- _AFX_CHECKLIST_STATE* pChecklistState = _afxChecklistState;
-
- if ((GetStyle() & (LBS_HASSTRINGS | LBS_OWNERDRAWFIXED)) ==
- (LBS_HASSTRINGS | LBS_OWNERDRAWFIXED))
- {
- CClientDC dc(this);
- CFont* pOldFont = dc.SelectObject(GetFont());
- TEXTMETRIC tm;
- VERIFY (dc.GetTextMetrics ( &tm ));
- dc.SelectObject(pOldFont);
-
- m_cyText = tm.tmHeight;
- nResult = max(pChecklistState->m_sizeCheck.cy + 1, m_cyText);
- }
- else
- {
- nResult = pChecklistState->m_sizeCheck.cy + 1;
- }
-
- return nResult;
- }
-
- void CCheckListBox::InvalidateCheck(int nIndex)
- {
- CRect rect;
- _AFX_CHECKLIST_STATE* pChecklistState = _afxChecklistState;
-
- GetItemRect(nIndex, rect);
- rect.right = rect.left + pChecklistState->m_sizeCheck.cx + 2;
- InvalidateRect(rect, FALSE);
- }
-
- void CCheckListBox::InvalidateItem(int nIndex)
- {
- CRect rect;
- GetItemRect(nIndex, rect);
- InvalidateRect(rect, FALSE);
- }
-
- int CCheckListBox::CheckFromPoint(CPoint point, BOOL& bInCheck)
- {
- // assume did not hit anything
- bInCheck = FALSE;
- int nIndex = -1;
-
- _AFX_CHECKLIST_STATE* pChecklistState = _afxChecklistState;
- if ((GetStyle() & (LBS_OWNERDRAWFIXED|LBS_MULTICOLUMN)) == LBS_OWNERDRAWFIXED)
- {
- // optimized case for ownerdraw fixed, single column
- int cyItem = GetItemHeight(0);
- if (point.y < cyItem * GetCount())
- {
- nIndex = GetTopIndex() + point.y / cyItem;
- if (point.x < pChecklistState->m_sizeCheck.cx + 2)
- ++bInCheck;
- }
- }
- else
- {
- // general case for ownerdraw variable or multiple column
- for (int i = GetTopIndex(); i < GetCount(); i++)
- {
- CRect itemRect;
- GetItemRect(i, &itemRect);
- if (itemRect.PtInRect(point))
- {
- nIndex = i;
- if (point.x < itemRect.left + pChecklistState->m_sizeCheck.cx + 2)
- ++bInCheck;
- break;
- }
- }
- }
- return nIndex;
- }
-
- void CCheckListBox::SetSelectionCheck( int nCheck )
- {
- int* piSelectedItems;
- int nSelectedItems;
- int iSelectedItem;
-
- nSelectedItems = GetSelCount();
- if( nSelectedItems > 0 )
- {
- piSelectedItems = (int*)_alloca( nSelectedItems*sizeof( int ) );
- GetSelItems( nSelectedItems, piSelectedItems );
- for( iSelectedItem = 0; iSelectedItem < nSelectedItems; iSelectedItem++ )
- {
- if( IsEnabled( piSelectedItems[iSelectedItem] ) )
- {
- SetCheck( piSelectedItems[iSelectedItem], nCheck );
- InvalidateCheck( piSelectedItems[iSelectedItem] );
- }
- }
- }
- }
-
- void CCheckListBox::OnLButtonDown(UINT nFlags, CPoint point)
- {
- SetFocus();
-
- // determine where the click is
- BOOL bInCheck;
- int nIndex = CheckFromPoint(point, bInCheck);
-
- // if the item is disabled, then eat the click
- if (!IsEnabled(nIndex))
- return;
-
- if (m_nStyle != BS_CHECKBOX && m_nStyle != BS_3STATE)
- {
- // toggle the check mark automatically if the check mark was hit
- if (bInCheck)
- {
- CWnd* pParent = GetParent();
- ASSERT_VALID( pParent );
-
- int nModulo = (m_nStyle == BS_AUTO3STATE) ? 3 : 2;
- int nCheck;
- int nNewCheck;
-
- nCheck = GetCheck( nIndex );
- nCheck = (nCheck == nModulo) ? nCheck-1 : nCheck;
- nNewCheck = (nCheck+1)%nModulo;
- SetCheck( nIndex, nNewCheck );
- InvalidateCheck( nIndex );
-
- if( (GetStyle()&(LBS_EXTENDEDSEL|LBS_MULTIPLESEL)) && GetSel(
- nIndex ) )
- {
- // The listbox is a multi-select listbox, and the user clicked on
- // a selected check, so change the check on all of the selected
- // items.
- SetSelectionCheck( nNewCheck );
- }
- else
- {
- CListBox::OnLButtonDown( nFlags, point );
- }
-
- // Inform parent of check
- pParent->SendMessage( WM_COMMAND, MAKEWPARAM( GetDlgCtrlID(),
- CLBN_CHKCHANGE ), (LPARAM)m_hWnd );
- return;
- }
- }
-
- // do default listbox selection logic
- CListBox::OnLButtonDown( nFlags, point );
- }
-
- void CCheckListBox::OnLButtonDblClk(UINT nFlags, CPoint point)
- {
- BOOL bInCheck;
- CheckFromPoint(point, bInCheck);
-
- if (bInCheck)
- {
- // Double and single clicks act the same on the check box!
- OnLButtonDown(nFlags, point);
- return;
- }
-
- CListBox::OnLButtonDblClk(nFlags, point);
- }
-
- void CCheckListBox::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
- {
- if (nChar == VK_SPACE)
- {
- int nIndex = GetCaretIndex();
- CWnd* pParent = GetParent();
- ASSERT_VALID(pParent);
-
- if (nIndex != LB_ERR)
- {
- if (m_nStyle != BS_CHECKBOX && m_nStyle != BS_3STATE)
- {
- if ((GetStyle() & LBS_MULTIPLESEL) != 0)
- {
- if (IsEnabled(nIndex))
- {
- BOOL bSelected = GetSel(nIndex);
- if (bSelected)
- {
- int nModulo = (m_nStyle == BS_AUTO3STATE) ? 3 : 2;
- int nCheck = GetCheck(nIndex);
- nCheck = (nCheck == nModulo) ? nCheck - 1 : nCheck;
- SetCheck(nIndex, (nCheck + 1) % nModulo);
-
- // Inform of check
- pParent->SendMessage(WM_COMMAND,
- MAKEWPARAM(GetDlgCtrlID(), CLBN_CHKCHANGE),
- (LPARAM)m_hWnd);
- }
- SetSel(nIndex, !bSelected);
- }
- else
- SetSel(nIndex, FALSE); // unselect disabled items
-
- return;
- }
- else
- {
- // If there is a selection, the space bar toggles that check,
- // all other keys are the same as a standard listbox.
-
- if (IsEnabled(nIndex))
- {
- int nModulo = (m_nStyle == BS_AUTO3STATE) ? 3 : 2;
- int nCheck = GetCheck(nIndex);
- nCheck = (nCheck == nModulo) ? nCheck - 1 : nCheck;
- int nNewCheck = (nCheck+1)%nModulo;
- SetCheck(nIndex, nNewCheck);
-
- InvalidateCheck(nIndex);
-
- if( GetStyle()&LBS_EXTENDEDSEL )
- {
- // The listbox is a multi-select listbox, and the user
- // clicked on a selected check, so change the check on all
- // of the selected items.
- SetSelectionCheck( nNewCheck );
- }
-
- // Inform of check
- pParent->SendMessage(WM_COMMAND,
- MAKEWPARAM(GetDlgCtrlID(), CLBN_CHKCHANGE),
- (LPARAM)m_hWnd);
- }
- else
- SetSel(nIndex, FALSE); // unselect disabled items
-
- return;
- }
- }
- }
- }
- CListBox::OnKeyDown(nChar, nRepCnt, nFlags);
- }
-
- int CCheckListBox::OnCreate(LPCREATESTRUCT lpCreateStruct)
- {
- if (CListBox::OnCreate(lpCreateStruct) == -1)
- return -1;
-
- if ((GetStyle() & (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS))
- == (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS))
- SetItemHeight(0, CalcMinimumItemHeight());
-
- return 0;
- }
-
- LRESULT CCheckListBox::OnSetFont(WPARAM , LPARAM)
- {
- Default();
-
- if ((GetStyle() & (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS))
- == (LBS_OWNERDRAWFIXED | LBS_HASSTRINGS))
- SetItemHeight(0, CalcMinimumItemHeight());
-
- return 0;
- }
-
- LRESULT CCheckListBox::OnLBAddString(WPARAM wParam, LPARAM lParam)
- {
- AFX_CHECK_DATA* pState = NULL;
-
- if (!(GetStyle() & LBS_HASSTRINGS))
- {
- pState = new AFX_CHECK_DATA;
-
- pState->m_dwUserData = lParam;
- lParam = (LPARAM)pState;
- }
-
- LRESULT lResult = DefWindowProc(LB_ADDSTRING, wParam, lParam);
-
- if (lResult == LB_ERR && pState != NULL)
- delete pState;
-
- return lResult;
- }
-
- LRESULT CCheckListBox::OnLBFindString(WPARAM wParam, LPARAM lParam)
- {
- if (GetStyle() & LBS_HASSTRINGS)
- return DefWindowProc(LB_FINDSTRING, wParam, lParam);
-
- int nIndex = wParam;
- if (nIndex == -1) nIndex = 0;
-
- for(; nIndex < GetCount(); nIndex++)
- if ((DWORD)lParam == GetItemData(nIndex))
- return nIndex;
-
- return LB_ERR;
- }
-
- LRESULT CCheckListBox::OnLBFindStringExact(WPARAM wParam, LPARAM lParam)
- {
- if (GetStyle() & (LBS_HASSTRINGS | LBS_SORT))
- return DefWindowProc(LB_FINDSTRINGEXACT, wParam, lParam);
-
- int nIndex = wParam;
- if (nIndex == -1) nIndex = 0;
-
- for(; nIndex < GetCount(); nIndex++)
- if ((DWORD)lParam == GetItemData(nIndex))
- return nIndex;
-
- return LB_ERR;
- }
-
- LRESULT CCheckListBox::OnLBGetItemData(WPARAM wParam, LPARAM lParam)
- {
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, wParam, lParam);
-
- if (lResult != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lResult;
-
- if (pState == NULL)
- return 0; // default
-
- lResult = pState->m_dwUserData;
- }
- return lResult;
- }
-
- LRESULT CCheckListBox::OnLBGetText(WPARAM wParam, LPARAM lParam)
- {
- LRESULT lResult = DefWindowProc(LB_GETTEXT, wParam, lParam);
-
- if (GetStyle() & LBS_HASSTRINGS)
- return lResult;
-
- if (lResult != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lParam;
-
- if (pState != NULL)
- lParam = pState->m_dwUserData;
- }
- return lResult;
- }
-
- LRESULT CCheckListBox::OnLBInsertString(WPARAM wParam, LPARAM lParam)
- {
- AFX_CHECK_DATA* pState = NULL;
-
- if (!(GetStyle() & LBS_HASSTRINGS))
- {
- pState = new AFX_CHECK_DATA;
- pState->m_dwUserData = lParam;
- lParam = (LPARAM)pState;
- }
-
- LRESULT lResult = DefWindowProc(LB_INSERTSTRING, wParam, lParam);
-
- if (lResult == LB_ERR && pState != NULL)
- delete pState;
-
- return lResult;
- }
-
- LRESULT CCheckListBox::OnLBSelectString(WPARAM wParam, LPARAM lParam)
- {
- if (GetStyle() & LBS_HASSTRINGS)
- return DefWindowProc(LB_SELECTSTRING, wParam, lParam);
-
- int nIndex = wParam;
- if (nIndex == -1) nIndex = 0;
-
- for(; nIndex < GetCount(); nIndex++)
- if ((DWORD)lParam == GetItemData(nIndex))
- {
- SetCurSel(nIndex);
- return nIndex;
- }
-
- return LB_ERR;
- }
-
- LRESULT CCheckListBox::OnLBSetItemData(WPARAM wParam, LPARAM lParam)
- {
- LRESULT lResult = DefWindowProc(LB_GETITEMDATA, wParam, 0);
-
- if (lResult != LB_ERR)
- {
- AFX_CHECK_DATA* pState = (AFX_CHECK_DATA*)lResult;
-
- if (pState == NULL)
- pState = new AFX_CHECK_DATA;
-
- pState->m_dwUserData = lParam;
- lResult = DefWindowProc(LB_SETITEMDATA, wParam, (LPARAM)pState);
-
- if (lResult == LB_ERR)
- delete pState;
- }
- return lResult;
- }
-
- LRESULT CCheckListBox::OnLBSetItemHeight(WPARAM wParam, LPARAM lParam)
- {
- int nHeight = max(CalcMinimumItemHeight(),(int)LOWORD(lParam));
- return DefWindowProc(LB_SETITEMHEIGHT, wParam, MAKELPARAM(nHeight,0));
- }
-
- #ifdef AFX_INIT_SEG
- #pragma code_seg(AFX_INIT_SEG)
- #endif
-
- IMPLEMENT_DYNAMIC(CCheckListBox, CListBox)
-
- #pragma warning(disable: 4074)
- #pragma init_seg(lib)
-
- PROCESS_LOCAL(_AFX_CHECKLIST_STATE, _afxChecklistState)
-
- /////////////////////////////////////////////////////////////////////////////
-