救急:树控件的子节点怎样加图标

Question

/////////////////////////////////////////////////////////////////////////////
//
// Module Name : Upload file dialog 
// Class Name  : CUploadDlg
// File Name   : "UploadDlg.h"
//
#if !defined(AFX_UPLOADDLG_H__CF78EF8D_8200_4D6B_9839_00AE9C4DCB31__INCLUDED_)
#define AFX_UPLOADDLG_H__CF78EF8D_8200_4D6B_9839_00AE9C4DCB31__INCLUDED_#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000//////////////////////////////////
// Specify the Class
class CUploadDlg : public CDialog
{
// コンストラクション
public:
CString m_strSelFileName;
CMap<HTREEITEM,HTREEITEM&,CStringList*,CStringList*&> m_mapFiles; CStringList m_strFolderList;
HTREEITEM m_hPopupItem;
CString m_strPathName;
CString GetTreePath();
CString m_strPrjName;
CUploadDlg(int nFlag,CWnd* pParent = NULL);   // 標準のコンストラクタ// ダイアログ データ
//{{AFX_DATA(CUploadDlg)
enum { IDD = IDD_UPLOAD_VIEW };
CHotKeyCtrl m_hotKey;
CListBox m_FileList;
CTreeCtrl m_FileTree;
CString m_strFileName;
//}}AFX_DATA
// オーバーライド
// ClassWizard は仮想関数のオーバーライドを生成します。
//{{AFX_VIRTUAL(CUploadDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV サポート
//}}AFX_VIRTUAL// インプリメンテーション
protected: // 生成されたメッセージ マップ関数
//{{AFX_MSG(CUploadDlg)
virtual BOOL OnInitDialog();
afx_msg void OnHotKey(WPARAM wParam,LPARAM lParam);
virtual void OnOK();
virtual void OnCancel();
afx_msg void OnRclickTrDir(NMHDR* pNMHDR, LRESULT* pResult);
afx_msg void OnFolderNew();
afx_msg void OnFolderDel();
afx_msg void OnEndlabeleditTrDir(NMHDR* pNMHDR, LRESULT* pResult);
afx_msg void OnSelchangedTrDir(NMHDR* pNMHDR, LRESULT* pResult);
afx_msg void OnBeginlabeleditTrDir(NMHDR* pNMHDR, LRESULT* pResult);
afx_msg void OnSelchangeLbFile();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
private:
int m_nFlag;
BOOL CheckFolderName(CString strNewName);
BOOL RenameFolder(CString strNewName,CString strOldName);
void FreeMaps();
BOOL DeleteFolder(CString strFolder);
BOOL CreateFolder(CString strFolder);

BOOL InitTree(CString strPathName, HTREEITEM hRootNode);

void SetCtrlHotKey();
void DelCtrlHotKey();
void AppendNode(CString strPathName, HTREEITEM hRootNode);
CImageList m_imageList;
int m_nFolderIcon;
int m_nFolderSelIcon;
};//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ は前行の直前に追加の宣言を挿入します。#endif // !defined(AFX_UPLOADDLG_H__CF78EF8D_8200_4D6B_9839_00AE9C4DCB31__INCLUDED_)

Answer 1

//////////////////////CPP///////////////////////////////
// CUploadDlg メッセージ ハンドラBOOL CUploadDlg::OnInitDialog() 
{
CString strFileTypeInfo;
CStringList *pstrNewList;
CDialog::OnInitDialog();

if(0 == m_nFlag)
{
SetWindowText("アップロードファイルの指定");
}
else
{
SetWindowText("ダウンロードファイルの指定");
((CEdit *)GetDlgItem(IDC_ED_FILENAME))->ShowWindow(SW_HIDE);
GetDlgItem(IDC_ST_NAME)->ShowWindow(SW_HIDE);
GetDlgItem(IDOK)->EnableWindow(FALSE);
}
//m_btnOk.EnableWindow(FALSE);
long style = ::GetWindowLong(m_FileTree.GetSafeHwnd(),GWL_STYLE);
style = style|TVS_HASBUTTONS|TVS_HASLINES|TVS_LINESATROOT;
::SetWindowLong(m_FileTree.GetSafeHwnd(),GWL_STYLE,style);

m_imageList.Create( GetSystemMetrics(SM_CXSMICON), 
          GetSystemMetrics(SM_CYSMICON), 
  ILC_COLOR24, 50, 50);
m_imageList.SetBkColor( GetSysColor(COLOR_WINDOW) ); CBitmap bitmap;
bitmap.LoadBitmap(IDB_BM_FOLDER);
m_nFolderIcon = m_imageList.Add(&bitmap, RGB(0, 0, 0));
bitmap.DeleteObject();
bitmap.LoadBitmap(IDB_BM_FOLDEROPEN);
m_nFolderSelIcon = m_imageList.Add(&bitmap, RGB(0, 0, 0));
bitmap.DeleteObject();

// m_nFolderIcon = m_imageList.Add(ExtractIcon( AfxGetApp()->m_hInstance, 
// "shell32.dll", 3));
// m_nFolderSelIcon = m_imageList.Add(ExtractIcon( AfxGetApp()->m_hInstance,
// "shell32.dll", 4));
m_FileTree.SetImageList(&m_imageList, TVSIL_NORMAL); int nRet = Com_GetFileTypeName(m_strPrjName, "1_0", strFileTypeInfo);
if(nRet == -1)
{
if(503 == ComC_GetErrorCode())
{
g_bConnect = TRUE;
}
ComC_ShowErrorMsg(nRet);
return FALSE;
}
m_FileTree.DeleteAllItems();
HTREEITEM hRootNode = m_FileTree.InsertItem(strFileTypeInfo,
m_nFolderIcon, m_nFolderSelIcon,TVI_ROOT); pstrNewList = new CStringList;
if(NULL == pstrNewList)
{
DisplayMessage(this,TEST_ERR_MALLOC_NG,MB_ICONWARNING);
return FALSE;
}
// pstrNewList->AddTail(strFileTypeInfo);
m_mapFiles[hRootNode] = pstrNewList; InitTree(" ", hRootNode);
m_FileTree.Expand(hRootNode, TVE_EXPAND);
m_FileTree.SelectItem(hRootNode);
HTREEITEM hNode = m_FileTree.GetSelectedItem();
SetCtrlHotKey(); return TRUE; 
}/////////////////////////////////////////////////////////////////////////////
// 
// Function Name : OnCancel
// Parameters    : -
// Return Value  : -
//
void CUploadDlg::OnCancel() 
{
FreeMaps();
DelCtrlHotKey();

CDialog::OnCancel();
}/////////////////////////////////////////////////////////////////////////////
// 
// Function Name : InitTree
// Parameters    : strPathName : Path
//               : hRootNode   : Root node
// Return Value  : -
//
BOOL CUploadDlg::InitTree(CString strPathName, HTREEITEM hRootNode)
{
CStringList strFlag, strFileName;
CStringList *pstrFiles; if(0 != m_nFlag)
GetDlgItem(IDOK)->EnableWindow(FALSE); pstrFiles = m_mapFiles[hRootNode];
int nRet = Com_RefreshFileList(strPathName, "1_0", m_strPrjName,
strFlag, strFileName);
if(nRet == -1)
{
if(503 == ComC_GetErrorCode())
{
g_bConnect = TRUE;
}
ComC_ShowErrorMsg(nRet);
return FALSE;
}
for(int i = 0; i < strFileName.GetCount();i++)
{
if(strFlag.GetAt(strFlag.FindIndex(i)) == "true")
{
HTREEITEM hNode = 
m_FileTree.InsertItem(strFileName.GetAt(strFileName.FindIndex(i)), 
m_nFolderIcon, m_nFolderSelIcon, hRootNode);
pstrFiles->AddTail(strFileName.GetAt(strFileName.FindIndex(i))); m_mapFiles[hNode] = new CStringList;
if(NULL == m_mapFiles[hNode])
{
DisplayMessage(this,TEST_ERR_MALLOC_NG,MB_ICONWARNING);
return FALSE;
} if(m_FileTree.ItemHasChildren(hRootNode))
{
CString strTemp;
if(strPathName != " ")
{
strTemp = strPathName+ "/" +
strFileName.GetAt(strFileName.FindIndex(i));
}
else
{
strTemp = strFileName.GetAt(strFileName.FindIndex(i));
}
InitTree(strTemp, hNode);
}
}
}
return TRUE;
}

Answer 2

package pced.main;import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.plaf.ColorUIResource;
import pced.common.*;
public class ItemCellRenderer extends JPanel
        implements TreeCellRenderer {
    protected TreeLabel label;
    ImageIcon iconWhite = null;
    ImageIcon iconBlack = null;
    public ItemCellRenderer() {
        String strPath = PcedSysProp.getHomePath();
        iconWhite = new ImageIcon(strPath + "\\icon\\whitepoint.gif");
        iconBlack = new ImageIcon(strPath + "\\icon\\blackpoint.gif");
        setLayout(null);
        add(label = new TreeLabel());
        label.setForeground(UIManager.getColor(TestDefine.TREE_TEXTFOREGROUND));
    }    public Component getTreeCellRendererComponent(JTree tree, Object value,
            boolean isSelected, boolean expanded,
            boolean leaf, int row, boolean hasFocus) {
        String  stringValue = tree.convertValueToText(value, isSelected,
                expanded, leaf, row, hasFocus);
        setEnabled(tree.isEnabled());
        label.setFont(tree.getFont());
        label.setText(stringValue);
        label.setSelected(isSelected);
        label.setFocus(hasFocus);
        if(isSelected)
        {
            label.setIcon(iconBlack);
        }
        else
        {
            label.setIcon(iconWhite);
        }
        return this;
    } 
    public Dimension getPreferredSize() {
        Dimension d_label = label.getPreferredSize();
        return new Dimension(d_label.width, d_label.height);
    }
    public void doLayout() {
        Dimension d_label = label.getPreferredSize();
        int y_check = 0;
        int y_label = 0;
        y_label = (d_label.height)/2;
        label.setLocation(0,y_label);
        label.setBounds(0,0,d_label.width,d_label.height);
    }
    public void setBackground(Color color) {
        if (color instanceof ColorUIResource)
        {
            color = null;
        }
        super.setBackground(color);
    }    public class TreeLabel extends JLabel {
        boolean isSelected;
        boolean hasFocus;        public TreeLabel() {
        }
        public void setBackground(Color color) {
            if(color instanceof ColorUIResource)
            {
                color = null;
            }
            super.setBackground(color);
        }
        public void paint(Graphics g) {
            String str;
            if ((str = getText()) != null)
            {
                if (0 < str.length())
                {
                    if (isSelected)
                    {
                        label.setForeground(Color.white);
                        g.setColor(Color.BLUE);
                    }
                    else
                    {
                        label.setForeground(Color.black);
                        g.setColor(UIManager.getColor(TestDefine.TREE_TEXTBACKGROUND));
                    }
                    Dimension d = getPreferredSize();
                    int imageOffset = 0;
                    Icon currentI = getIcon();
                    if (currentI != null)
                    {
                        imageOffset = currentI.getIconWidth() + Math.max(0,
                                getIconTextGap() - 1);
                    }
                    g.fillRect(imageOffset, 0, d.width -1 - imageOffset, d.height);
                    if (hasFocus)
                    {
                        g.setColor(UIManager.getColor(TestDefine.TREE_SELBORDERCOLOR));
                        g.drawRect(imageOffset, 0, d.width -1 - imageOffset,
                                   d.height -1);
                    }
                }
            }
            super.paint(g);
        }        public Dimension getPreferredSize() {
            Dimension retDimension = super.getPreferredSize();
            if (retDimension != null)
            {
                retDimension = new Dimension(retDimension.width + 3,
                        retDimension.height);
            }
            return retDimension;
        }        public void setSelected(boolean isSelected) {
            this.isSelected = isSelected;
        }        public void setFocus(boolean hasFocus) {
            this.hasFocus = hasFocus;
        }
    }
}

Answer 3

private void initJTree()
    {
        jt = new JTree(buildTreeNode());
        //jt.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
        jt.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
        jt.setCellRenderer(new ItemCellRenderer());
        jt.addPropertyChangeListener(new java.beans.PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent e) {
                jt_propertyChange(e);
            }
        });
刚才发错了!:)