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ColumnTreeCtrl.cpp
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ColumnTreeCtrl.cpp
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/*
Free Download Manager Copyright (c) 2003-2016 FreeDownloadManager.ORG
*/
#include "stdafx.h"
#include "ColumnTreeCtrl.h"
#include <shlwapi.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
#ifndef TVS_NOHSCROLL
#error CColumnTreeCtrl requires IE 5.0 or higher; _WIN32_IE should be greater than 0x500.
#endif
static void _DotHLine(HDC hdc, LONG x, LONG y, LONG w, COLORREF cr)
{
for (; w>0; w-=2, x+=2)
SetPixel(hdc, x, y, cr);
}
static void _DotVLine(HDC hdc, LONG x, LONG y, LONG w, COLORREF cr)
{
for (; w>0; w-=2, y+=2)
SetPixel(hdc, x, y, cr);
}
IMPLEMENT_DYNAMIC(CCustomTreeChildCtrl, CTreeCtrl)
CCustomTreeChildCtrl::CCustomTreeChildCtrl()
{
#ifdef _OWNER_DRAWN_TREE
m_bkImage.hbm=NULL;
m_bkImage.xOffsetPercent = 0;
m_bkImage.yOffsetPercent = 0;
m_imgBtns.Create (9, 9, ILC_COLOR32|ILC_MASK,2,1);
CBitmap* pBmpBtns = CBitmap::FromHandle(LoadBitmap(AfxGetInstanceHandle(),
MAKEINTRESOURCE(IDB_TREEBTNS)));
ASSERT(pBmpBtns);
m_imgBtns.Add(pBmpBtns,RGB(255,0,255));
#endif
}
CCustomTreeChildCtrl::~CCustomTreeChildCtrl()
{
}
BEGIN_MESSAGE_MAP(CCustomTreeChildCtrl, CTreeCtrl)
ON_WM_MOUSEMOVE()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONDBLCLK()
ON_WM_PAINT()
ON_WM_ERASEBKGND()
ON_WM_VSCROLL()
ON_WM_MOUSEWHEEL()
ON_WM_TIMER()
ON_WM_CREATE()
ON_WM_KEYDOWN()
END_MESSAGE_MAP()
BOOL CCustomTreeChildCtrl::GetBkImage(LVBKIMAGE* plvbkImage) const
{
memcpy(plvbkImage, &m_bkImage, sizeof(LVBKIMAGE));
return TRUE;
}
BOOL CCustomTreeChildCtrl::SetBkImage(LVBKIMAGE* plvbkImage)
{
memcpy(&m_bkImage, plvbkImage, sizeof(LVBKIMAGE));
Invalidate();
return TRUE;
}
void CCustomTreeChildCtrl::OnTimer(UINT_PTR nIDEvent)
{
}
void CCustomTreeChildCtrl::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
Invalidate();
CTreeCtrl::OnKeyDown(nChar, nRepCnt, nFlags);
}
void CCustomTreeChildCtrl::OnLButtonDown(UINT nFlags, CPoint point)
{
if (CheckHit(point))
{
UINT nHitFlags;
HTREEITEM hItem = HitTest(point, &nHitFlags);
if(hItem)
{
if (nHitFlags & TVHT_ONITEMSTATEICON)
GetParent ()->GetParent ()->PostMessage (WM_CUSTTREE_CHECKBOX_CLICKED, 0, (LPARAM)hItem);
#ifdef _OWNER_DRAWN_TREE
CRect rcItem, rcClient;
GetClientRect(&rcClient);
GetItemRect(hItem,&rcItem,FALSE);
if(rcItem.bottom>rcClient.bottom)
{
Invalidate();
EnsureVisible(hItem);
SelectItem(hItem);
return;
}
#endif
SelectItem(hItem);
}
CTreeCtrl::OnLButtonDown(nFlags, point);
}
else
{
SetFocus();
}
}
void CCustomTreeChildCtrl::OnLButtonDblClk(UINT nFlags, CPoint point)
{
if (CheckHit(point))
{
HTREEITEM hItem = HitTest(point);
if(hItem)
{
#ifdef _OWNER_DRAWN_TREE
CRect rcItem, rcClient;
GetClientRect(&rcClient);
GetItemRect(hItem,&rcItem,FALSE);
if(rcItem.bottom>rcClient.bottom)
{
Invalidate();
CTreeCtrl::OnLButtonDown(nFlags, point);
return;
}
#endif
SelectItem(hItem);
}
CTreeCtrl::OnLButtonDblClk(nFlags, point);
}
else
{
SetFocus();
}
}
void CCustomTreeChildCtrl::OnMouseMove(UINT nFlags, CPoint point)
{
if (::IsWindow (m_ttip.m_hWnd))
{
TOOLINFO ti;
WPARAM wp = MAKEWPARAM (point.x, point.y);
ti.lpszText = (TCHAR*)malloc (1000 * sizeof(TCHAR));
_tcscpy (ti.lpszText, _T(""));
GetParent ()->SendMessage (ID_CTCC_GETTOOLTIPTEXT, wp, (LPARAM)&ti);
static CString _strOld;
if (_strOld != ti.lpszText)
{
_strOld = ti.lpszText;
m_ttip.UpdateTipText (_strOld, this);
}
free (ti.lpszText);
}
if (CheckHit(point))
{
CTreeCtrl::OnMouseMove(nFlags, point);
}
}
#ifdef _OWNER_DRAWN_TREE
LRESULT CCustomTreeChildCtrl::CustomDrawNotify(LPNMTVCUSTOMDRAW lpnm)
{
lpnm->nmcd.hdr.hwndFrom = GetSafeHwnd();
lpnm->nmcd.hdr.code = NM_CUSTOMDRAW;
lpnm->nmcd.hdr.idFrom = GetWindowLong(m_hWnd, GWL_ID);
return GetParent()->SendMessage(WM_NOTIFY,(WPARAM)0,(LPARAM)lpnm);
}
LRESULT CCustomTreeChildCtrl::OwnerDraw(CDC* pDC)
{
NMTVCUSTOMDRAW nm;
DWORD dwFlags;
DWORD dwRet;
CRect rcClient;
GetClientRect(&rcClient);
memset(&nm,0,sizeof(NMTVCUSTOMDRAW));
nm.nmcd.dwDrawStage = CDDS_PREPAINT;
nm.nmcd.hdc = pDC->m_hDC;
nm.nmcd.rc = rcClient;
dwFlags = (DWORD)CustomDrawNotify(&nm);
COLORREF crBkgnd = IsWindowEnabled()?pDC->GetBkColor():GetSysColor(COLOR_BTNFACE);
pDC->FillSolidRect( rcClient, crBkgnd );
if(m_bkImage.hbm && IsWindowEnabled())
{
int xOffset = m_nOffsetX;
int yOffset = rcClient.left;
int yHeight = rcClient.Height();
SCROLLINFO scroll_info;
if ( GetScrollInfo( SB_VERT, &scroll_info, SIF_POS | SIF_RANGE ) )
{
yOffset = -scroll_info.nPos;
yHeight = max( scroll_info.nMax+1, rcClient.Height());
}
CDC dcTemp;
dcTemp.CreateCompatibleDC(pDC);
BITMAP bm;
::GetObject(m_bkImage.hbm,sizeof(BITMAP),&bm);
CBitmap* pOldBitmap =
dcTemp.SelectObject( CBitmap::FromHandle(m_bkImage.hbm) );
float x = (float)m_bkImage.xOffsetPercent/100*(float)rcClient.Width();
float y = (float)m_bkImage.yOffsetPercent/100*(float)rcClient.Height();
pDC->BitBlt(+(int)x,
(int)y,
bm.bmWidth, bm.bmHeight, &dcTemp, 0, 0, SRCCOPY);
dcTemp.SelectObject(pOldBitmap);
}
if(dwFlags&CDRF_NOTIFYPOSTERASE)
{
nm.nmcd.dwDrawStage = CDDS_POSTERASE;
dwRet = (DWORD)CustomDrawNotify(&nm);
}
CFont* pOldFont = pDC->SelectObject(GetFont());
CImageList* pstateList = GetImageList(TVSIL_STATE);
CImageList* pimgList = GetImageList(TVSIL_NORMAL);
CSize iconSize, stateImgSize;
if(pimgList)
{
IMAGEINFO ii;
if(pimgList->GetImageInfo(0, &ii))
iconSize = CSize(ii.rcImage.right-ii.rcImage.left,
ii.rcImage.bottom-ii.rcImage.top);
}
if(pstateList)
{
IMAGEINFO ii;
if(pstateList->GetImageInfo(0, &ii))
stateImgSize = CSize(ii.rcImage.right-ii.rcImage.left,
ii.rcImage.bottom-ii.rcImage.top);
}
HTREEITEM hItem = GetFirstVisibleItem();
while(hItem)
{
int nOldBkMode = pDC->SetBkMode(TRANSPARENT);
DWORD dwStyle = GetStyle();
DWORD dwState = GetItemState(hItem,0xFFFF);
BOOL bEnabled = IsWindowEnabled();
BOOL bSelected = dwState&TVIS_SELECTED;
BOOL bHasFocus = (GetFocus() && GetFocus()->m_hWnd==m_hWnd)?TRUE:FALSE;
nm.nmcd.dwItemSpec = (DWORD_PTR)hItem;
if(bEnabled)
{
if(bHasFocus)
{
nm.clrTextBk = bSelected?GetSysColor(COLOR_HIGHLIGHT):crBkgnd;
nm.clrText = ::GetSysColor(bSelected?COLOR_HIGHLIGHTTEXT:COLOR_MENUTEXT);
nm.nmcd.uItemState = dwState | (bSelected?CDIS_FOCUS:0);
}
else
{
if(GetStyle()&TVS_SHOWSELALWAYS)
{
nm.clrTextBk = bSelected?GetSysColor(COLOR_INACTIVEBORDER):crBkgnd;
nm.clrText = ::GetSysColor(COLOR_MENUTEXT);
}
else
{
nm.clrTextBk = crBkgnd;
nm.clrText = ::GetSysColor(COLOR_MENUTEXT);
}
}
}
else
{
nm.clrTextBk = bSelected?GetSysColor(COLOR_BTNSHADOW):crBkgnd;
nm.clrText = ::GetSysColor(COLOR_GRAYTEXT);
}
GetItemRect(hItem,&nm.nmcd.rc,0);
CRgn rgn;
rgn.CreateRectRgn(nm.nmcd.rc.left, nm.nmcd.rc.top,
nm.nmcd.rc.left+m_nFirstColumnWidth, nm.nmcd.rc.bottom);
pDC->SelectClipRgn(&rgn);
dwRet = CDRF_DODEFAULT;
if(dwFlags&CDRF_NOTIFYITEMDRAW)
{
nm.nmcd.dwDrawStage = CDDS_ITEMPREPAINT;
dwRet = (DWORD)CustomDrawNotify(&nm);
}
if(!(dwFlags&CDRF_SKIPDEFAULT))
{
CRect rcItem;
int nImage,nSelImage;
GetItemRect(hItem,&rcItem,TRUE);
GetItemImage(hItem,nImage,nSelImage);
int x = rcItem.left-3;
int yCenterItem = rcItem.top + (rcItem.bottom - rcItem.top)/2;
if(pimgList)
{
int nImageIndex = dwState&TVIS_SELECTED?nImage:nSelImage;
x-=iconSize.cx+1;
pimgList->Draw(pDC,nImageIndex,
CPoint(x, yCenterItem-iconSize.cy/2),ILD_TRANSPARENT);
}
if(GetStyle()&TVS_CHECKBOXES && pstateList!=NULL)
{
DWORD dwStateImg = GetItemState(hItem,TVIS_STATEIMAGEMASK)>>12;
x-=stateImgSize.cx;
pstateList->Draw(pDC,dwStateImg,
CPoint(x, yCenterItem-stateImgSize.cy/2),ILD_TRANSPARENT);
}
if(dwStyle&TVS_HASLINES)
{
CPen pen;
pen.CreatePen(PS_DOT,1,GetLineColor());
CPen* pOldPen = pDC->SelectObject(&pen);
HTREEITEM hItemParent = GetParentItem(hItem);
if(hItemParent!=NULL ||dwStyle&TVS_LINESATROOT)
{
_DotHLine(pDC->m_hDC,x-iconSize.cx/2-2,yCenterItem,
iconSize.cx/2+2,RGB(128,128,128));
}
if(hItemParent!=NULL || dwStyle&TVS_LINESATROOT && GetPrevSiblingItem(hItem)!=NULL)
{
_DotVLine(pDC->m_hDC,x-iconSize.cx/2-2,rcItem.top,
yCenterItem-rcItem.top, RGB(128,128,128));
}
if(GetNextSiblingItem(hItem)!=NULL)
{
_DotVLine(pDC->m_hDC,x-iconSize.cx/2-2,yCenterItem,
rcItem.bottom-yCenterItem,RGB(128,128,128));
}
int x1 = x-iconSize.cx/2-2;
while(hItemParent!=NULL )
{
x1-=iconSize.cx+3;
if(GetNextSiblingItem(hItemParent)!=NULL)
{
_DotVLine(pDC->m_hDC,x1,rcItem.top,rcItem.Height(),RGB(128,128,128));
}
hItemParent = GetParentItem(hItemParent);
}
pDC->SelectObject(pOldPen);
}
if(dwStyle&TVS_HASBUTTONS && ItemHasChildren(hItem))
{
int nImg = GetItemState(hItem,TVIF_STATE)&TVIS_EXPANDED?1:0;
m_imgBtns.Draw(pDC, nImg, CPoint(x-iconSize.cx/2-6,yCenterItem-4),
ILD_TRANSPARENT);
}
}
pDC->SelectClipRgn(NULL);
if(dwRet&CDRF_NOTIFYPOSTPAINT)
{
nm.nmcd.dwDrawStage = CDDS_ITEMPOSTPAINT;
dwRet = (DWORD)CustomDrawNotify(&nm);
}
pDC->SetBkMode(nOldBkMode);
hItem = GetNextVisibleItem(hItem);
};
pDC->SelectObject(pOldFont);
return 0;
}
int CCustomTreeChildCtrl::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt)
{
Invalidate();
return CTreeCtrl::OnMouseWheel(nFlags, zDelta, pt);
}
void CCustomTreeChildCtrl::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar *pScrollBar)
{
Invalidate();
CTreeCtrl::OnVScroll(nSBCode, nPos, pScrollBar);
}
#endif
void CCustomTreeChildCtrl::OnPaint()
{
CRect rcClient;
GetClientRect(&rcClient);
CPaintDC dc(this);
CDC dcMem;
CBitmap bmpMem;
dcMem.CreateCompatibleDC(&dc);
if (bmpMem.CreateCompatibleBitmap(&dc, rcClient.Width(), rcClient.Height()))
{
CBitmap* pOldBmp = dcMem.SelectObject(&bmpMem);
#ifdef _OWNER_DRAWN_TREE
OwnerDraw(&dcMem);
#else
CWnd::DefWindowProc(WM_PAINT, (WPARAM)dcMem.m_hDC, 0);
#endif
dc.BitBlt(0, 0, rcClient.right, rcClient.bottom, &dcMem, 0, 0, SRCCOPY);
dcMem.SelectObject(pOldBmp);
bmpMem.DeleteObject();
}
dcMem.DeleteDC();
}
BOOL CCustomTreeChildCtrl::OnEraseBkgnd(CDC* pDC)
{
return TRUE;
}
BOOL CCustomTreeChildCtrl::CheckHit(CPoint point)
{
UINT fFlags;
HTREEITEM hItem = HitTest(point, &fFlags);
CRect rcItem,rcClient;
GetClientRect(rcClient);
GetItemRect(hItem, &rcItem, TRUE);
if (fFlags & TVHT_ONITEMICON ||
fFlags & TVHT_ONITEMBUTTON ||
fFlags & TVHT_ONITEMSTATEICON)
return TRUE;
if(GetStyle()&TVS_FULLROWSELECT)
{
rcItem.right = rcClient.right;
if(rcItem.PtInRect(point))
return TRUE;
return FALSE;
}
if (fFlags & TVHT_ONITEMLABEL)
{
rcItem.right = m_nFirstColumnWidth;
if (!rcItem.PtInRect(point))
return FALSE;
CString strSub;
AfxExtractSubString(strSub, GetItemText(hItem), 0, '\t');
CDC* pDC = GetDC();
pDC->SelectObject(GetFont());
rcItem.right = rcItem.left + pDC->GetTextExtent(strSub).cx + 6;
ReleaseDC(pDC);
if (!rcItem.PtInRect(point))
return FALSE;
return TRUE;
}
return FALSE;
}
#define COLUMN_MARGIN 1
#ifdef _OWNER_DRAWN_TREE
#define DEFMINFIRSTCOLWIDTH 0
#else
#define DEFMINFIRSTCOLWIDTH 100
#endif
IMPLEMENT_DYNCREATE(CColumnTreeCtrl, CStatic)
BEGIN_MESSAGE_MAP(CColumnTreeCtrl, CStatic)
ON_WM_PAINT()
ON_WM_ERASEBKGND()
ON_WM_SIZE()
ON_WM_HSCROLL()
ON_WM_SETTINGCHANGE()
ON_WM_ENABLE()
ON_MESSAGE (ID_CTCC_GETTOOLTIPTEXT, OnCtccGetToolTipText)
END_MESSAGE_MAP()
CColumnTreeCtrl::CColumnTreeCtrl()
{
m_uMinFirstColWidth = DEFMINFIRSTCOLWIDTH;
m_bHeaderChangesBlocked = FALSE;
m_xOffset = 0;
m_bCreatingWindowByOurself = false;
}
CColumnTreeCtrl::~CColumnTreeCtrl()
{
}
BOOL CColumnTreeCtrl::Create(DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID)
{
m_bCreatingWindowByOurself = true;
CStatic::Create(_T(""), dwStyle, rect, pParentWnd, nID);
m_bCreatingWindowByOurself = false;
Initialize();
return TRUE;
}
void CColumnTreeCtrl::PreSubclassWindow()
{
if (!m_bCreatingWindowByOurself)
Initialize();
}
#ifdef DEBUG
void CColumnTreeCtrl::AssertValid( ) const
{
CStatic::AssertValid();
ASSERT( m_Tree.m_hWnd );
ASSERT( m_Header.m_hWnd );
ASSERT( m_Header2.m_hWnd );
}
#endif
void CColumnTreeCtrl::Initialize()
{
if (m_Tree.m_hWnd)
return;
CRect rcClient;
GetClientRect(&rcClient);
m_Tree.Create(WS_CHILD | WS_VISIBLE | TVS_NOHSCROLL, CRect(), this, TreeID);
m_Header.Create(WS_CHILD | WS_VISIBLE | HDS_FULLDRAG , rcClient, this, HeaderID);
m_Header2.Create(WS_CHILD , rcClient, this, Header2ID);
m_horScroll.Create(SBS_HORZ|WS_CHILD|SBS_BOTTOMALIGN,rcClient,this,HScrollID);
CFont* pFont = m_Tree.GetFont();
m_Header.SetFont(pFont);
m_Header2.SetFont(pFont);
BOOL bIsComCtl6 = FALSE;
HMODULE hComCtlDll = LoadLibrary(_T("comctl32.dll"));
if (hComCtlDll)
{
typedef HRESULT (CALLBACK *PFNDLLGETVERSION)(DLLVERSIONINFO*);
PFNDLLGETVERSION pfnDllGetVersion = (PFNDLLGETVERSION)GetProcAddress(hComCtlDll, "DllGetVersion");
if (pfnDllGetVersion)
{
DLLVERSIONINFO dvi;
ZeroMemory(&dvi, sizeof(dvi));
dvi.cbSize = sizeof(dvi);
HRESULT hRes = (*pfnDllGetVersion)(&dvi);
if (SUCCEEDED(hRes) && dvi.dwMajorVersion >= 6)
bIsComCtl6 = TRUE;
}
FreeLibrary(hComCtlDll);
}
WINDOWPOS wp;
HDLAYOUT hdlayout;
hdlayout.prc = &rcClient;
hdlayout.pwpos = ℘
m_Header.Layout(&hdlayout);
m_cyHeader = hdlayout.pwpos->cy;
m_xOffset = bIsComCtl6 ? 9 : 6;
m_xPos = 0;
UpdateColumns();
}
void CColumnTreeCtrl::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
{
m_Tree.SendMessage(WM_SETTINGCHANGE);
m_horScroll.SendMessage(WM_SETTINGCHANGE);
CRect rcClient;
GetClientRect(&rcClient);
m_Header.SendMessage(WM_SETTINGCHANGE);
m_Header2.SendMessage(WM_SETTINGCHANGE);
m_Header.SetFont(CFont::FromHandle((HFONT)GetStockObject(DEFAULT_GUI_FONT)));
m_Header2.SetFont(CFont::FromHandle((HFONT)GetStockObject(DEFAULT_GUI_FONT)));
WINDOWPOS wp;
HDLAYOUT hdlayout;
hdlayout.prc = &rcClient;
hdlayout.pwpos = ℘
m_Header.Layout(&hdlayout);
m_cyHeader = hdlayout.pwpos->cy;
RepositionControls();
}
void CColumnTreeCtrl::OnPaint()
{
CPaintDC dc(this);
CRect rcClient;
GetClientRect(&rcClient);
int cyHScroll = GetSystemMetrics(SM_CYHSCROLL);
int cxVScroll = GetSystemMetrics(SM_CXVSCROLL);
CBrush brush;
brush.CreateSolidBrush(::GetSysColor(COLOR_BTNFACE));
CRect rc;
SCROLLINFO scrinfo;
scrinfo.cbSize = sizeof(scrinfo);
m_Tree.GetScrollInfo(SB_VERT,&scrinfo,SIF_ALL);
BOOL bVScrollVisible = scrinfo.nMin!=scrinfo.nMax?TRUE:FALSE;
if(bVScrollVisible)
{
rc.SetRect(rcClient.right-cxVScroll, rcClient.bottom-cyHScroll,
rcClient.right, rcClient.bottom);
dc.FillRect(rc,&brush);
}
}
BOOL CColumnTreeCtrl::OnEraseBkgnd(CDC* pDC)
{
return FALSE;
}
void CColumnTreeCtrl::OnSize(UINT nType, int cx, int cy)
{
RepositionControls();
}
void CColumnTreeCtrl::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
SCROLLINFO scrinfo;
scrinfo.cbSize = sizeof(scrinfo);
m_Tree.GetScrollInfo(SB_VERT,&scrinfo,SIF_ALL);
BOOL bVScrollVisible = scrinfo.nMin!=scrinfo.nMax?TRUE:FALSE;
int cxTotal = m_cxTotal+(bVScrollVisible?GetSystemMetrics(SM_CXVSCROLL):0);
CRect rcClient;
GetClientRect(&rcClient);
int cx = rcClient.Width();
int xLast = m_xPos;
switch (nSBCode)
{
case SB_LINELEFT:
m_xPos -= 15;
break;
case SB_LINERIGHT:
m_xPos += 15;
break;
case SB_PAGELEFT:
m_xPos -= cx;
break;
case SB_PAGERIGHT:
m_xPos += cx;
break;
case SB_LEFT:
m_xPos = 0;
break;
case SB_RIGHT:
m_xPos = cxTotal - cx;
break;
case SB_THUMBTRACK:
m_xPos = nPos;
break;
}
if (m_xPos < 0)
m_xPos = 0;
else if (m_xPos > cxTotal - cx)
m_xPos = cxTotal - cx;
if (xLast == m_xPos)
return;
m_Tree.m_nOffsetX = m_xPos;
SetScrollPos(SB_HORZ, m_xPos);
CWnd::OnHScroll(nSBCode,nPos,pScrollBar);
RepositionControls();
}
void CColumnTreeCtrl::OnHeaderItemChanging(NMHDR* pNMHDR, LRESULT* pResult)
{
if(m_bHeaderChangesBlocked)
{
m_bHeaderChangesBlocked = FALSE;
*pResult = TRUE;
return;
}
*pResult = FALSE;
LPNMHEADER pnm = (LPNMHEADER)pNMHDR;
if(pnm->iItem==0)
{
CRect rc;
m_Header.GetItemRect(0,&rc);
if(pnm->pitem->cxy<m_uMinFirstColWidth)
{
pnm->pitem->cxy=m_uMinFirstColWidth+1;
*pResult = TRUE;
}
return;
}
}
void CColumnTreeCtrl::OnHeaderItemChanged(NMHDR* pNMHDR, LRESULT* pResult)
{
UpdateColumns();
m_Tree.Invalidate();
}
void CColumnTreeCtrl::OnTreeCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
NMCUSTOMDRAW* pNMCustomDraw = (NMCUSTOMDRAW*)pNMHDR;
NMTVCUSTOMDRAW* pNMTVCustomDraw = (NMTVCUSTOMDRAW*)pNMHDR;
switch (pNMCustomDraw->dwDrawStage)
{
case CDDS_PREPAINT:
*pResult = CDRF_NOTIFYITEMDRAW;
break;
case CDDS_ITEMPREPAINT:
*pResult = CDRF_DODEFAULT | CDRF_NOTIFYPOSTPAINT;
break;
case CDDS_ITEMPOSTPAINT:
{
HTREEITEM hItem = (HTREEITEM)pNMCustomDraw->dwItemSpec;
CRect rcItem = pNMCustomDraw->rc;
if (rcItem.IsRectEmpty())
{
*pResult = CDRF_DODEFAULT;
break;
}
CDC dc;
dc.Attach(pNMCustomDraw->hdc);
CRect rcLabel;
m_Tree.GetItemRect(hItem, &rcLabel, TRUE);
COLORREF crTextBk = pNMTVCustomDraw->clrTextBk;
COLORREF crWnd = GetSysColor((IsWindowEnabled()?COLOR_WINDOW:COLOR_BTNFACE));
#ifndef _OWNER_DRAWN_TREE
dc.FillSolidRect(&rcLabel, crWnd);
#endif
int nColsCnt = m_Header.GetItemCount();
int xOffset = 0;
int i=0;
for (i=0; i<nColsCnt; i++)
{
xOffset += m_arrColWidths[i];
rcItem.right = xOffset-1;
dc.DrawEdge(&rcItem, BDR_SUNKENINNER, BF_RIGHT);
}
dc.DrawEdge(&rcItem, BDR_SUNKENINNER, BF_BOTTOM);
CString strText = m_Tree.GetItemText(hItem);
CString strSub;
AfxExtractSubString(strSub, strText, 0, '\t');
CRect rcText(0,0,0,0);
dc.DrawText(strSub, &rcText, DT_NOPREFIX | DT_CALCRECT);
rcLabel.right = min(rcLabel.left + rcText.right + 4, m_arrColWidths[0] - 4);