motiffilechooserui.java

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

	    public Dimension getMaximumSize() {
		return new Dimension(MAX_SIZE.width, this.getPreferredSize().height);
	    }
	};
	approveButton.setMnemonic(getApproveButtonMnemonic(fc));
	approveButton.setToolTipText(getApproveButtonToolTipText(fc));
        approveButton.setInheritsPopupMenu(true);
	align(approveButton);
	approveButton.setMargin(buttonMargin);
	approveButton.addActionListener(getApproveSelectionAction());
	buttonPanel.add(approveButton);
	buttonPanel.add(Box.createGlue());

	JButton updateButton = new JButton(updateButtonText) {
	    public Dimension getMaximumSize() {
		return new Dimension(MAX_SIZE.width, this.getPreferredSize().height);
	    }
	};
	updateButton.setMnemonic(updateButtonMnemonic);
	updateButton.setToolTipText(updateButtonToolTipText);
        updateButton.setInheritsPopupMenu(true);
	align(updateButton);
	updateButton.setMargin(buttonMargin);
	updateButton.addActionListener(getUpdateAction());
	buttonPanel.add(updateButton);
	buttonPanel.add(Box.createGlue());

	JButton cancelButton = new JButton(cancelButtonText) {
	    public Dimension getMaximumSize() {
		return new Dimension(MAX_SIZE.width, this.getPreferredSize().height);
	    }
	};
	cancelButton.setMnemonic(cancelButtonMnemonic);
	cancelButton.setToolTipText(cancelButtonToolTipText);
        cancelButton.setInheritsPopupMenu(true);
	align(cancelButton);
	cancelButton.setMargin(buttonMargin);
	cancelButton.addActionListener(getCancelSelectionAction());
	buttonPanel.add(cancelButton);
	buttonPanel.add(Box.createGlue());

	JButton helpButton = new JButton(helpButtonText) {
	    public Dimension getMaximumSize() {
		return new Dimension(MAX_SIZE.width, this.getPreferredSize().height);
	    }
	};
	helpButton.setMnemonic(helpButtonMnemonic);
	helpButton.setToolTipText(helpButtonToolTipText);
	align(helpButton);
	helpButton.setMargin(buttonMargin);
	helpButton.setEnabled(false);
        helpButton.setInheritsPopupMenu(true);
	buttonPanel.add(helpButton);
	buttonPanel.add(Box.createGlue());
        buttonPanel.setInheritsPopupMenu(true);

	bottomPanel.add(buttonPanel, BorderLayout.SOUTH);
        bottomPanel.setInheritsPopupMenu(true);
	if (fc.getControlButtonsAreShown()) {
           fc.add(bottomPanel, BorderLayout.SOUTH);
        }
    }

    protected JPanel getBottomPanel() {
        if (bottomPanel == null) {
            bottomPanel = new JPanel(new BorderLayout(0, 4));
        }
        return bottomPanel;
    }

    private void doControlButtonsChanged(PropertyChangeEvent e) {
        if (getFileChooser().getControlButtonsAreShown()) {
            getFileChooser().add(bottomPanel,BorderLayout.SOUTH);
        } else {
            getFileChooser().remove(getBottomPanel());
        }
    }

    public void uninstallComponents(JFileChooser fc) {
	fc.removeAll();
	bottomPanel = null;
	directoryPanel = null;
    }

    protected void installStrings(JFileChooser fc) {
        super.installStrings(fc);

        Locale l = fc.getLocale();

	enterFileNameLabelText = UIManager.getString("FileChooser.enterFileNameLabelText",l);
	enterFileNameLabelMnemonic = UIManager.getInt("FileChooser.enterFileNameLabelMnemonic"); 
	
	filesLabelText = UIManager.getString("FileChooser.filesLabelText",l);
	filesLabelMnemonic = UIManager.getInt("FileChooser.filesLabelMnemonic"); 
	
	foldersLabelText = UIManager.getString("FileChooser.foldersLabelText",l);
	foldersLabelMnemonic = UIManager.getInt("FileChooser.foldersLabelMnemonic"); 
	
	pathLabelText = UIManager.getString("FileChooser.pathLabelText",l);
	pathLabelMnemonic = UIManager.getInt("FileChooser.pathLabelMnemonic"); 
	
	filterLabelText = UIManager.getString("FileChooser.filterLabelText",l);
	filterLabelMnemonic = UIManager.getInt("FileChooser.filterLabelMnemonic");  
    }

    protected void installIcons(JFileChooser fc) {
	// Since motif doesn't have button icons, leave this empty
	// which overrides the supertype icon loading
    }

    protected void uninstallIcons(JFileChooser fc) {
	// Since motif doesn't have button icons, leave this empty
	// which overrides the supertype icon loading
    }

    protected JScrollPane createFilesList() {
	fileList = new JList();

	if(getFileChooser().isMultiSelectionEnabled()) {
	    fileList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
	} else {
	    fileList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
	}
	
	fileList.setModel(new MotifFileListModel());
        fileList.getSelectionModel().removeSelectionInterval(0, 0);
	fileList.setCellRenderer(new FileCellRenderer());
	fileList.addListSelectionListener(createListSelectionListener(getFileChooser()));
	fileList.addMouseListener(createDoubleClickListener(getFileChooser(), fileList));
        fileList.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                JFileChooser chooser = getFileChooser();
                if (SwingUtilities.isLeftMouseButton(e) && !chooser.isMultiSelectionEnabled()) {
                    int index = SwingUtilities2.loc2IndexFileList(fileList, e.getPoint());
                    if (index >= 0) {
                        File file = (File) fileList.getModel().getElementAt(index);
                        setFileName(chooser.getName(file));
                    }
                }
            }
        });
	align(fileList);
	JScrollPane scrollpane = new JScrollPane(fileList);
	scrollpane.setPreferredSize(prefListSize);
	scrollpane.setMaximumSize(MAX_SIZE);
	align(scrollpane);
        fileList.setInheritsPopupMenu(true);
        scrollpane.setInheritsPopupMenu(true);
	return scrollpane;
    }

    protected JScrollPane createDirectoryList() {
	directoryList = new JList();
	align(directoryList);

	directoryList.setCellRenderer(new DirectoryCellRenderer());
	directoryList.setModel(new MotifDirectoryListModel());
        directoryList.getSelectionModel().removeSelectionInterval(0, 0);
	directoryList.addMouseListener(createDoubleClickListener(getFileChooser(), directoryList));
	directoryList.addListSelectionListener(createListSelectionListener(getFileChooser()));
        directoryList.setInheritsPopupMenu(true);

	JScrollPane scrollpane = new JScrollPane(directoryList);
	scrollpane.setMaximumSize(MAX_SIZE);
	scrollpane.setPreferredSize(prefListSize);
        scrollpane.setInheritsPopupMenu(true);
	align(scrollpane);
	return scrollpane;
    }

    public Dimension getPreferredSize(JComponent c) {
	Dimension prefSize =
	    (getFileChooser().getAccessory() != null) ? WITH_ACCELERATOR_PREF_SIZE : PREF_SIZE;
	Dimension d = c.getLayout().preferredLayoutSize(c);
	if (d != null) {
	    return new Dimension(d.width < prefSize.width ? prefSize.width : d.width,
				 d.height < prefSize.height ? prefSize.height : d.height);
	} else {
	    return prefSize;
	}
    }

    public Dimension getMinimumSize(JComponent x)  {
	return MIN_SIZE;
    }

    public Dimension getMaximumSize(JComponent x) {
	return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
    }

    protected void align(JComponent c) {
	c.setAlignmentX(JComponent.LEFT_ALIGNMENT);
	c.setAlignmentY(JComponent.TOP_ALIGNMENT);
    }

    protected class FileCellRenderer extends DefaultListCellRenderer  {
	public Component getListCellRendererComponent(JList list, Object value, int index,
						      boolean isSelected, boolean cellHasFocus) {

	    super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
	    setText(getFileChooser().getName((File) value));
            setInheritsPopupMenu(true);
	    return this;
	}
    }

    protected class DirectoryCellRenderer extends DefaultListCellRenderer  {
	public Component getListCellRendererComponent(JList list, Object value, int index,
						      boolean isSelected, boolean cellHasFocus) {

	    super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
	    setText(getFileChooser().getName((File) value));
            setInheritsPopupMenu(true);
	    return this;
	}
    }

    protected class MotifDirectoryListModel extends AbstractListModel implements ListDataListener {
	public MotifDirectoryListModel() {
	    getModel().addListDataListener(this);
	}

	public int getSize() {
	    return getModel().getDirectories().size();
	}

	public Object getElementAt(int index) {
	    return getModel().getDirectories().elementAt(index);
	}

	public void intervalAdded(ListDataEvent e) {
            fireIntervalAdded(this, e.getIndex0(), e.getIndex1());
	}

	public void intervalRemoved(ListDataEvent e) {
            fireIntervalRemoved(this, e.getIndex0(), e.getIndex1());
	}

	// PENDING(jeff) - this is inefficient - should sent out
	// incremental adjustment values instead of saying that the
	// whole list has changed.
	public void fireContentsChanged() {
	    fireContentsChanged(this, 0, getModel().getDirectories().size()-1);
	}

	// PENDING(jeff) - fire the correct interval changed - currently sending
	// out that everything has changed
	public void contentsChanged(ListDataEvent e) {
	    fireContentsChanged();
	}

    }

    protected class MotifFileListModel extends AbstractListModel implements ListDataListener {
	public MotifFileListModel() {
	    getModel().addListDataListener(this);
	}

	public int getSize() {
	    return getModel().getFiles().size();
	}

	public boolean contains(Object o) {
	    return getModel().getFiles().contains(o);
	}

	public int indexOf(Object o) {
	    return getModel().getFiles().indexOf(o);
	}

	public Object getElementAt(int index) {
	    return getModel().getFiles().elementAt(index);
	}

	public void intervalAdded(ListDataEvent e) {
            fireIntervalAdded(this, e.getIndex0(), e.getIndex1());
	}

	public void intervalRemoved(ListDataEvent e) {
            fireIntervalRemoved(this, e.getIndex0(), e.getIndex1());
	}

	// PENDING(jeff) - this is inefficient - should sent out
	// incremental adjustment values instead of saying that the
	// whole list has changed.
	public void fireContentsChanged() {
	    fireContentsChanged(this, 0, getModel().getFiles().size()-1);
	}

	// PENDING(jeff) - fire the interval changed
	public void contentsChanged(ListDataEvent e) {
	    fireContentsChanged();
	}

    }

    //
    // DataModel for Types Comboxbox
    //
    protected FilterComboBoxModel createFilterComboBoxModel() {
	return new FilterComboBoxModel();
    }

    //
    // Renderer for Types ComboBox
    //
    protected FilterComboBoxRenderer createFilterComboBoxRenderer() {
	return new FilterComboBoxRenderer();
    }


    /**
     * Render different type sizes and styles.
     */
    public class FilterComboBoxRenderer extends DefaultListCellRenderer {
	public Component getListCellRendererComponent(JList list,
	    Object value, int index, boolean isSelected,
	    boolean cellHasFocus) {

	    super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);

	    if (value != null && value instanceof FileFilter) {
		setText(((FileFilter)value).getDescription());
	    }

	    return this;
	}
    }

    /**
     * Data model for a type-face selection combo-box.
     */
    protected class FilterComboBoxModel extends AbstractListModel implements ComboBoxModel, PropertyChangeListener {
	protected FileFilter[] filters;
	protected FilterComboBoxModel() {
	    super();
	    filters = getFileChooser().getChoosableFileFilters();
	}

	public void propertyChange(PropertyChangeEvent e) {
	    String prop = e.getPropertyName();
	    if(prop == JFileChooser.CHOOSABLE_FILE_FILTER_CHANGED_PROPERTY) {
		filters = (FileFilter[]) e.getNewValue();
		fireContentsChanged(this, -1, -1);
	    } else if (prop == JFileChooser.FILE_FILTER_CHANGED_PROPERTY) {
		fireContentsChanged(this, -1, -1);
	    }
	}

	public void setSelectedItem(Object filter) {
	    if(filter != null) {
		getFileChooser().setFileFilter((FileFilter) filter);
		fireContentsChanged(this, -1, -1);
	    }
	}

	public Object getSelectedItem() {
	    // Ensure that the current filter is in the list.
	    // NOTE: we shouldnt' have to do this, since JFileChooser adds
	    // the filter to the choosable filters list when the filter
	    // is set. Lets be paranoid just in case someone overrides
	    // setFileFilter in JFileChooser.
	    FileFilter currentFilter = getFileChooser().getFileFilter();
	    boolean found = false;
	    if(currentFilter != null) {
		for(int i=0; i < filters.length; i++) {
		    if(filters[i] == currentFilter) {
			found = true;
		    }
		}
		if(found == false) {
		    getFileChooser().addChoosableFileFilter(currentFilter);
		}
	    }
	    return getFileChooser().getFileFilter();
	}

	public int getSize() {
	    if(filters != null) {
		return filters.length;
	    } else {
		return 0;
	    }
	}

	public Object getElementAt(int index) {
	    if(index > getSize() - 1) {
		// This shouldn't happen. Try to recover gracefully.
		return getFileChooser().getFileFilter();
	    }
	    if(filters != null) {
		return filters[index];
	    } else {
		return null;
	    }
	}
    }

    protected JButton getApproveButton(JFileChooser fc) {
	return approveButton;
    }

}