motiffilechooserui.java

Mobile 应用程序使用 Java Micro Edition (Java ME) 平台

/*
 * @(#)MotifFileChooserUI.java	1.52 07/06/20
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.sun.java.swing.plaf.motif;

import javax.swing.*;
import javax.swing.filechooser.*;
import javax.swing.event.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.io.File;
import java.io.IOException;
import java.util.*;
import sun.awt.shell.ShellFolder;
import sun.swing.SwingUtilities2;

/**
 * Motif FileChooserUI.
 *
 * @version 1.52 06/20/07
 * @author Jeff Dinkins
 */
public class MotifFileChooserUI extends BasicFileChooserUI {

    private FilterComboBoxModel filterComboBoxModel;

    protected JList directoryList = null;
    protected JList fileList = null;

    protected JTextField pathField = null;
    protected JComboBox filterComboBox = null;
    protected JTextField filenameTextField = null;

    private static final Dimension hstrut10 = new Dimension(10, 1);
    private static final Dimension vstrut10 = new Dimension(1, 10);

    private static final Insets insets = new Insets(10, 10, 10, 10);

    private static Dimension prefListSize = new Dimension(75, 150);

    private static Dimension WITH_ACCELERATOR_PREF_SIZE = new Dimension(650, 450);
    private static Dimension PREF_SIZE = new Dimension(350, 450);
    private static Dimension MIN_SIZE = new Dimension(200, 300);

    private static Dimension PREF_ACC_SIZE = new Dimension(10, 10);
    private static Dimension ZERO_ACC_SIZE = new Dimension(1, 1);

    private static Dimension MAX_SIZE = new Dimension(Short.MAX_VALUE, Short.MAX_VALUE);

    private static final Insets buttonMargin = new Insets(3, 3, 3, 3);

    private JPanel directoryPanel = new JPanel();
    private JPanel bottomPanel;

    protected JButton approveButton;

    private String enterFileNameLabelText = null;
    private int enterFileNameLabelMnemonic = 0;

    private String filesLabelText = null;
    private int filesLabelMnemonic = 0;

    private String foldersLabelText = null;
    private int foldersLabelMnemonic = 0;

    private String pathLabelText = null;
    private int pathLabelMnemonic = 0;

    private String filterLabelText = null;
    private int filterLabelMnemonic = 0;

    private String fileNameString(File file) {
        if (file == null) {
            return null;
        } else {
            JFileChooser fc = getFileChooser();
            if (fc.isDirectorySelectionEnabled() && !fc.isFileSelectionEnabled()) {
                return file.getPath();
            } else {
                return file.getName();
            }
        }
    }

    private String fileNameString(File[] files) {
        StringBuffer buf = new StringBuffer();
        for (int i = 0; files != null && i < files.length; i++) {
            if (i > 0) {
                buf.append(" ");
            }
            if (files.length > 1) {
                buf.append("\"");
            }
            buf.append(fileNameString(files[i]));
            if (files.length > 1) {
                buf.append("\"");
            }
        }
        return buf.toString();
    }

    public MotifFileChooserUI(JFileChooser filechooser) {
	super(filechooser);
    }

    public String getFileName() {
	if(filenameTextField != null) {
	    return filenameTextField.getText();
	} else {
	    return null;
	}
    }

    public void setFileName(String filename) {
	if(filenameTextField != null) {
	    filenameTextField.setText(filename);
	}
    }

    public String getDirectoryName() {
	return pathField.getText();
    }

    public void setDirectoryName(String dirname) {
	pathField.setText(dirname);
    }

    public void ensureFileIsVisible(JFileChooser fc, File f) {
	// PENDING(jeff)
    }

    public void rescanCurrentDirectory(JFileChooser fc) {
        getModel().validateFileCache();
    }

    public PropertyChangeListener createPropertyChangeListener(JFileChooser fc) {
	return new PropertyChangeListener() {
	    public void propertyChange(PropertyChangeEvent e) {
		String prop = e.getPropertyName();
		if(prop.equals(JFileChooser.SELECTED_FILE_CHANGED_PROPERTY)) {
		    File f = (File) e.getNewValue();
		    if(f != null) {
			setFileName(getFileChooser().getName(f));
		    }
                } else if (prop.equals(JFileChooser.SELECTED_FILES_CHANGED_PROPERTY)) {
                    File[] files = (File[]) e.getNewValue();
                    JFileChooser fc = getFileChooser();
                    if (files != null && files.length > 0 && (files.length > 1 || fc.isDirectorySelectionEnabled() 
                            || !files[0].isDirectory())) {
                        setFileName(fileNameString(files));
                    }
                } else if (prop.equals(JFileChooser.FILE_FILTER_CHANGED_PROPERTY)) {
                    fileList.clearSelection();
		} else if(prop.equals(JFileChooser.DIRECTORY_CHANGED_PROPERTY)) {
		    directoryList.clearSelection();
		    ListSelectionModel sm = directoryList.getSelectionModel();
                    if (sm instanceof DefaultListSelectionModel) {
		        ((DefaultListSelectionModel)sm).moveLeadSelectionIndex(0);       
		        ((DefaultListSelectionModel)sm).setAnchorSelectionIndex(0);
		    }
		    fileList.clearSelection();
		    sm = fileList.getSelectionModel();
		    if (sm instanceof DefaultListSelectionModel) {
		        ((DefaultListSelectionModel)sm).moveLeadSelectionIndex(0);
		        ((DefaultListSelectionModel)sm).setAnchorSelectionIndex(0);
		    }
		    File currentDirectory = getFileChooser().getCurrentDirectory();
		    if(currentDirectory != null) {
			try {
			    setDirectoryName(ShellFolder.getNormalizedFile((File)e.getNewValue()).getPath());
			} catch (IOException ioe) {
			    setDirectoryName(((File)e.getNewValue()).getAbsolutePath());
			}
			if ((getFileChooser().getFileSelectionMode() == JFileChooser.DIRECTORIES_ONLY) && !getFileChooser().isMultiSelectionEnabled()) {
			    setFileName(getDirectoryName());
			}
		    }
		} else if(prop.equals(JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY)) {
		    directoryList.clearSelection();
		} else if(prop == JFileChooser.MULTI_SELECTION_ENABLED_CHANGED_PROPERTY) {
		    if(getFileChooser().isMultiSelectionEnabled()) {
			fileList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
		    } else {
			fileList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
			fileList.clearSelection();
			getFileChooser().setSelectedFiles(null);
		    }
		} else if(prop == JFileChooser.ACCESSORY_CHANGED_PROPERTY) {
		    if(getAccessoryPanel() != null) {
			if(e.getOldValue() != null) {
			    getAccessoryPanel().remove((JComponent) e.getOldValue());
			}
			JComponent accessory = (JComponent) e.getNewValue();
			if(accessory != null) {
			    getAccessoryPanel().add(accessory, BorderLayout.CENTER);
			    getAccessoryPanel().setPreferredSize(PREF_ACC_SIZE);
			    getAccessoryPanel().setMaximumSize(MAX_SIZE);
			} else {
			    getAccessoryPanel().setPreferredSize(ZERO_ACC_SIZE);
			    getAccessoryPanel().setMaximumSize(ZERO_ACC_SIZE);
			}
		    }
		} else if (prop == JFileChooser.APPROVE_BUTTON_TEXT_CHANGED_PROPERTY ||
			   prop == JFileChooser.APPROVE_BUTTON_TOOL_TIP_TEXT_CHANGED_PROPERTY ||
			   prop == JFileChooser.DIALOG_TYPE_CHANGED_PROPERTY) {
		    approveButton.setText(getApproveButtonText(getFileChooser()));
		    approveButton.setToolTipText(getApproveButtonToolTipText(getFileChooser()));
		} else if (prop.equals(JFileChooser.CONTROL_BUTTONS_ARE_SHOWN_CHANGED_PROPERTY)) {
                    doControlButtonsChanged(e);
                } else if (prop.equals("componentOrientation")) {
		    ComponentOrientation o = (ComponentOrientation)e.getNewValue();
		    JFileChooser cc = (JFileChooser)e.getSource();
		    if (o != (ComponentOrientation)e.getOldValue()) {
			cc.applyComponentOrientation(o);
		    }
		}
	    }
	};
    }

    //
    // ComponentUI Interface Implementation methods
    //
    public static ComponentUI createUI(JComponent c) {
        return new MotifFileChooserUI((JFileChooser)c);
    }

    public void installUI(JComponent c) {
	super.installUI(c);
    }

    public void uninstallUI(JComponent c) {
	c.removePropertyChangeListener(filterComboBoxModel);
	approveButton.removeActionListener(getApproveSelectionAction());
	filenameTextField.removeActionListener(getApproveSelectionAction());
	super.uninstallUI(c);
    }

    public void installComponents(JFileChooser fc) {
	fc.setLayout(new BorderLayout(10, 10));
	fc.setAlignmentX(JComponent.CENTER_ALIGNMENT);

	JPanel interior = new JPanel() {
	    public Insets getInsets() {
		return insets;
	    }
	};
        interior.setInheritsPopupMenu(true);
	align(interior);
	interior.setLayout(new BoxLayout(interior, BoxLayout.PAGE_AXIS));

	fc.add(interior, BorderLayout.CENTER);

	// PENDING(jeff) - I18N
	JLabel l = new JLabel(pathLabelText);
	l.setDisplayedMnemonic(pathLabelMnemonic);
	align(l);
	interior.add(l);

	File currentDirectory = fc.getCurrentDirectory();
	String curDirName = null;
	if(currentDirectory != null) {
	    curDirName = currentDirectory.getPath();
	}
	pathField = new JTextField(curDirName) {
	    public Dimension getMaximumSize() {
		Dimension d = super.getMaximumSize();
		d.height = getPreferredSize().height;
		return d;
	    }
	};
        pathField.setInheritsPopupMenu(true);
	l.setLabelFor(pathField);
	align(pathField);

	// Change to folder on return
	pathField.addActionListener(getUpdateAction());
	interior.add(pathField);

	interior.add(Box.createRigidArea(vstrut10));


	// CENTER: left, right accessory
	JPanel centerPanel = new JPanel();
	centerPanel.setLayout(new BoxLayout(centerPanel, BoxLayout.LINE_AXIS));
	align(centerPanel);

	// left panel - Filter & folderList
	JPanel leftPanel = new JPanel();
	leftPanel.setLayout(new BoxLayout(leftPanel, BoxLayout.PAGE_AXIS));
	align(leftPanel);

	// add the filter PENDING(jeff) - I18N
	l = new JLabel(filterLabelText);
	l.setDisplayedMnemonic(filterLabelMnemonic);
	align(l);
	leftPanel.add(l);

	filterComboBox = new JComboBox() {
	    public Dimension getMaximumSize() {
		Dimension d = super.getMaximumSize();
		d.height = getPreferredSize().height;
		return d;
	    }
	};
        filterComboBox.setInheritsPopupMenu(true);
        l.setLabelFor(filterComboBox);
	filterComboBoxModel = createFilterComboBoxModel();
	filterComboBox.setModel(filterComboBoxModel);
	filterComboBox.setRenderer(createFilterComboBoxRenderer());
	fc.addPropertyChangeListener(filterComboBoxModel);
	align(filterComboBox);
	leftPanel.add(filterComboBox);

	// leftPanel.add(Box.createRigidArea(vstrut10));

	// Add the Folder List PENDING(jeff) - I18N
	l = new JLabel(foldersLabelText);
	l.setDisplayedMnemonic(foldersLabelMnemonic);
	align(l);
	leftPanel.add(l);
	JScrollPane sp = createDirectoryList();
        sp.getVerticalScrollBar().setFocusable(false);
        sp.getHorizontalScrollBar().setFocusable(false);
        sp.setInheritsPopupMenu(true);
	l.setLabelFor(sp.getViewport().getView());
	leftPanel.add(sp);
        leftPanel.setInheritsPopupMenu(true);


	// create files list
	JPanel rightPanel = new JPanel();
	align(rightPanel);
	rightPanel.setLayout(new BoxLayout(rightPanel, BoxLayout.PAGE_AXIS));
        rightPanel.setInheritsPopupMenu(true);

	l = new JLabel(filesLabelText);
	l.setDisplayedMnemonic(filesLabelMnemonic);
	align(l);
	rightPanel.add(l);
	sp = createFilesList();
	l.setLabelFor(sp.getViewport().getView());
	rightPanel.add(sp);
        sp.setInheritsPopupMenu(true);

	centerPanel.add(leftPanel);
	centerPanel.add(Box.createRigidArea(hstrut10));
	centerPanel.add(rightPanel);
        centerPanel.setInheritsPopupMenu(true);

	JComponent accessoryPanel = getAccessoryPanel();
	JComponent accessory = fc.getAccessory();
	if(accessoryPanel != null) {
	    if(accessory == null) {
		accessoryPanel.setPreferredSize(ZERO_ACC_SIZE);
		accessoryPanel.setMaximumSize(ZERO_ACC_SIZE);
	    } else {
		getAccessoryPanel().add(accessory, BorderLayout.CENTER);
		accessoryPanel.setPreferredSize(PREF_ACC_SIZE);
		accessoryPanel.setMaximumSize(MAX_SIZE);
	    }
	    align(accessoryPanel);
	    centerPanel.add(accessoryPanel);
            accessoryPanel.setInheritsPopupMenu(true);
	}
	interior.add(centerPanel);
	interior.add(Box.createRigidArea(vstrut10));

	// add the filename field PENDING(jeff) - I18N
	l = new JLabel(enterFileNameLabelText);
	l.setDisplayedMnemonic(enterFileNameLabelMnemonic);
	align(l);
	interior.add(l);

	filenameTextField = new JTextField() {
	    public Dimension getMaximumSize() {
		Dimension d = super.getMaximumSize();
		d.height = getPreferredSize().height;
		return d;
	    }
	};
        filenameTextField.setInheritsPopupMenu(true);
	l.setLabelFor(filenameTextField);
	filenameTextField.addActionListener(getApproveSelectionAction());
	align(filenameTextField);
	filenameTextField.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	interior.add(filenameTextField);

	bottomPanel = getBottomPanel();
	bottomPanel.add(new JSeparator(), BorderLayout.NORTH);

	// Add buttons
	JPanel buttonPanel = new JPanel();
	align(buttonPanel);
	buttonPanel.setLayout(new BoxLayout(buttonPanel, BoxLayout.LINE_AXIS));
	buttonPanel.add(Box.createGlue());

	approveButton = new JButton(getApproveButtonText(fc)) {