树形控件TreeCtrl关联的MFC中的类：CTreeCtrl
1、插入结点：InsertItem
2、获取与设置结点的文本：GetItemText、SetItemText
3、删除某个结点：DeleteItem
4、删除所有结点：DeleteAllItems
5、收起与展开结点：Expand
6、获取与设置选择结点：GetSelectedItem、SelectItem
7、获取与设置虚线的颜色：GetLineColor、SetLineColor
8、获取与设置文本的颜色：GetTextColor、SetTextColor
9、获取与设置Check：GetCheck、SetCheck
10、获取与设置扩展风格样式：GetExtendedStyle、SetExtendedStyle
11、获取与设置结点的图标：GetItemImage、SetItemImage
12、获取与设置图标列表：GetImageList、SetImageList
13、获取根结点：GetRootItem
14、获取父结点：GetParentItem
15、获取子结点：GetChildItem
16、获取下一个兄弟结点：GetNextSiblingItem
HTREEITEM hNext = m_TreeCtrl.GetNextSiblingItem(hSelect);
if ( hNext ) {
m_TreeCtrl.SetItemText(hNext, _T("ddddd"));
}
17、是否有子结点：ItemHasChildren
18、编辑结点：EditLabel
CString strText;
m_TreeCtrl.GetEditControl()->GetWindowText(strText);
m_TreeCtrl.SetItemText(pTVDispInfo->item.hItem, strText);
19、获取与设置某结点的附加数据：GetItemData、SetItemData
20、取得下一个结点，可以是：选择、兄弟、儿子、可见、下一个可见、上一个、根、父亲 等：GetNextItem
21、获取可视结点的个数、第一个可视结点、下一个可视结点、最后一个可视结点：
这里有必要跟大家解释一下可视结点的意思：即，当前窗口所能看见的结点的个数，如果超过了就会出现滚动条！
GetVisibleCount、GetFirstVisibleItem、GetNextVisibleItem、GetLastVisibleItem
UINT uCount = m_TreeCtrl.GetVisibleCount();
HTREEITEM hItem = m_TreeCtrl.GetFirstVisibleItem();
for (UINT idx = 0; idx < uCount; idx++) {
ASSERT(hItem != NULL);
m_TreeCtrl.SetCheck(hItem, !m_TreeCtrl.GetCheck(hItem));
hItem = m_TreeCtrl.GetNextVisibleItem(hItem);
}
22.获取与设置文本的颜色：GetTextColor、SetTextColor只能设置全部节点文本颜色，当我们只设置某一个节点的文本时需要重写CTreeCtrl类，写一个派生类
TreeCtrlEx.h TreeCtrlEx.cpp 其中的SetItemColor(HTREEITEM hItem, COLORREF color)来实现
TreeCtrlEx.h
/
//
// Author: Sami (M.ALSAMSAM), [email protected]
//
// Filename: TreeCtrlEx.h
//
// http : www.ittiger.net
//
//
#if !defined(AFX_TREECTRLEX_H__5D969ED4_7DEA_4FB5_8C1D_E12D1CCF0989__INCLUDED_)
#define AFX_TREECTRLEX_H__5D969ED4_7DEA_4FB5_8C1D_E12D1CCF0989__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include
//
class CTreeCtrlEx : public CTreeCtrl
{
DECLARE_DYNAMIC(CTreeCtrlEx)
public:
CTreeCtrlEx();
virtual ~CTreeCtrlEx();
void SetItemFont(HTREEITEM, LOGFONT&);
void SetItemBold(HTREEITEM, BOOL);
void SetItemColor(HTREEITEM, COLORREF);
BOOL GetItemFont(HTREEITEM, LOGFONT *);
BOOL GetItemBold(HTREEITEM);
COLORREF GetItemColor(HTREEITEM);
protected:
struct Color_Font {
COLORREF color;
LOGFONT logfont;
};
CMap
protected:
//{{AFX_MSG(CTreeCtrlEx)
afx_msg void OnPaint();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
#endif // !defined(AFX_TREECTRLEX_H__5D969ED4_7DEA_4FB5_8C1D_E12D1CCF0989__INCLUDED_)
TreeCtrlEx.cpp
/
//
// Author: Sami (M.ALSAMSAM), [email protected]
//
// Filename: TreeCtrlEx.cpp
//
// http : www.ittiger.net
//
//
#include "stdafx.h"
#include "ColorTree.h"
#include "TreeCtrlEx.h"
#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
//
CTreeCtrlEx::CTreeCtrlEx()
{
}
CTreeCtrlEx::~CTreeCtrlEx()
{
}
//
IMPLEMENT_DYNAMIC(CTreeCtrlEx, CTreeCtrl)
BEGIN_MESSAGE_MAP(CTreeCtrlEx, CTreeCtrl)
//{{AFX_MSG_MAP(CTreeCtrlEx)
ON_WM_PAINT()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
//
void CTreeCtrlEx::SetItemFont(HTREEITEM hItem, LOGFONT& logfont)
{
Color_Font cf;
if( !m_mapColorFont.Lookup( hItem, cf ) )
cf.color = (COLORREF)-1;
cf.logfont = logfont;
m_mapColorFont[hItem] = cf;
}
//
void CTreeCtrlEx::SetItemBold(HTREEITEM hItem, BOOL bBold)
{
SetItemState(hItem, bBold ? TVIS_BOLD: 0, TVIS_BOLD);
}
//
void CTreeCtrlEx::SetItemColor(HTREEITEM hItem, COLORREF color)
{
Color_Font cf;
if(!m_mapColorFont.Lookup(hItem, cf))
cf.logfont.lfFaceName[0] = '\0';
cf.color = color;
m_mapColorFont[hItem] = cf;
}
//
BOOL CTreeCtrlEx::GetItemFont(HTREEITEM hItem, LOGFONT * plogfont)
{
Color_Font cf;
if(!m_mapColorFont.Lookup(hItem, cf))
return FALSE;
if(cf.logfont.lfFaceName[0] == '\0')
return FALSE;
*plogfont = cf.logfont;
return TRUE;
}
//
BOOL CTreeCtrlEx::GetItemBold(HTREEITEM hItem)
{
return GetItemState(hItem, TVIS_BOLD) & TVIS_BOLD;
}
//
COLORREF CTreeCtrlEx::GetItemColor(HTREEITEM hItem)
{
// Returns (COLORREF)-1 if color was not set
Color_Font cf;
if(!m_mapColorFont.Lookup(hItem, cf))
return (COLORREF) - 1;
return cf.color;
}
//
void CTreeCtrlEx::OnPaint()
{
CPaintDC dc(this);
// Create a memory DC compatible with the paint DC
CDC memDC;
memDC.CreateCompatibleDC(&dc);
CRect rcClip, rcClient;
dc.GetClipBox( &rcClip );
GetClientRect(&rcClient);
// Select a compatible bitmap into the memory DC
CBitmap bitmap;
bitmap.CreateCompatibleBitmap( &dc, rcClient.Width(), rcClient.Height() );
memDC.SelectObject( &bitmap );
// Set clip region to be same as that in paint DC
CRgn rgn;
rgn.CreateRectRgnIndirect( &rcClip );
memDC.SelectClipRgn(&rgn);
rgn.DeleteObject();
// First let the control do its default drawing.
CWnd::DefWindowProc(WM_PAINT, (WPARAM)memDC.m_hDC, 0);
HTREEITEM hItem = GetFirstVisibleItem();
int iItemCount = GetVisibleCount() + 1;
while(hItem && iItemCount--)
{
CRect rect;
// Do not meddle with selected items or drop highlighted items
UINT selflag = TVIS_DROPHILITED | TVIS_SELECTED;
Color_Font cf;
//if ( !(GetTreeCtrl().GetItemState( hItem, selflag ) & selflag )
// && m_mapColorFont.Lookup( hItem, cf ))
if ((GetItemState(hItem, selflag) & selflag)
&& ::GetFocus() == m_hWnd)
;
else if (m_mapColorFont.Lookup(hItem, cf))
{
CFont *pFontDC;
CFont fontDC;
LOGFONT logfont;
if(cf.logfont.lfFaceName[0] != '\0')
logfont = cf.logfont;
else {
// No font specified, so use window font
CFont *pFont = GetFont();
pFont->GetLogFont( &logfont );
}
if(GetItemBold(hItem))
logfont.lfWeight = 700;
fontDC.CreateFontIndirect(&logfont);
pFontDC = memDC.SelectObject(&fontDC );
if(cf.color != (COLORREF) - 1)
memDC.SetTextColor(cf.color);
else
memDC.SetTextColor(GetSysColor(COLOR_WINDOWTEXT));
CString sItem = GetItemText(hItem);
GetItemRect(hItem, &rect, TRUE);
memDC.SetBkColor( GetSysColor(COLOR_WINDOW));
memDC.TextOut(rect.left + 2, rect.top + 1, sItem);
memDC.SelectObject(pFontDC);
}
hItem = GetNextVisibleItem(hItem);
}
dc.BitBlt(rcClip.left, rcClip.top, rcClip.Width(), rcClip.Height(), &memDC,
rcClip.left, rcClip.top, SRCCOPY);
memDC.DeleteDC();
}