innerframe.java

Manning - Java Swing 2nd Edition (2003) swing2e源代码

/** 
 *  Copyright 1999-2002 Matthew Robinson and Pavel Vorobiev. 
 *  All Rights Reserved. 
 * 
 *  =================================================== 
 *  This program contains code from the book "Swing" 
 *  2nd Edition by Matthew Robinson and Pavel Vorobiev 
 *  http://www.spindoczine.com/sbe 
 *  =================================================== 
 * 
 *  The above paragraph must be included in full, unmodified 
 *  and completely intact in the beginning of any source code 
 *  file that references, copies or uses (in any way, shape 
 *  or form) code contained in this file. 
 */ 

package mdi;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.EmptyBorder;

public class InnerFrame 
extends JPanel implements RootPaneContainer, Externalizable
{
  private static String IMAGE_DIR = "mdi" + java.io.File.separator;
  private static ImageIcon ICONIZE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"iconize.gif");
  private static ImageIcon RESTORE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"restore.gif");
  private static ImageIcon CLOSE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"close.gif");
  private static ImageIcon MAXIMIZE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"maximize.gif");
  private static ImageIcon MINIMIZE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"minimize.gif");
  private static ImageIcon PRESS_CLOSE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"pressclose.gif");
  private static ImageIcon PRESS_RESTORE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"pressrestore.gif");
  private static ImageIcon PRESS_ICONIZE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"pressiconize.gif");
  private static ImageIcon PRESS_MAXIMIZE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"pressmaximize.gif");
  private static ImageIcon PRESS_MINIMIZE_BUTTON_ICON = new ImageIcon(IMAGE_DIR+"pressminimize.gif");
  private static ImageIcon DEFAULT_FRAME_ICON = new ImageIcon(IMAGE_DIR+"default.gif");
  private static int BORDER_THICKNESS = 4;
  private static int WIDTH = 200;
  private static int HEIGHT = 200;
  private static int TITLE_BAR_HEIGHT = 25;
  private static int FRAME_ICON_PADDING = 2;
  private static int ICONIZED_WIDTH = 150;
  private static Color DEFAULT_TITLE_BAR_BG_COLOR = new Color(108,190,116);
  private static Color DEFAULT_BORDER_COLOR = new Color(8,90,16);
  private static Color DEFAULT_SELECTED_TITLE_BAR_BG_COLOR = new Color(91,182,249);
  private static Color DEFAULT_SELECTED_BORDER_COLOR = new Color(0,82,149);

  private Color m_titleBarBackground = DEFAULT_TITLE_BAR_BG_COLOR;
  private Color m_titleBarForeground = Color.black;
  private Color m_BorderColor = DEFAULT_BORDER_COLOR;
  private Color m_selectedTitleBarBackground = DEFAULT_SELECTED_TITLE_BAR_BG_COLOR;
  private Color m_selectedBorderColor = DEFAULT_SELECTED_BORDER_COLOR;

  private int m_titleBarHeight = TITLE_BAR_HEIGHT;
  private int m_width = WIDTH;
  private int m_height = HEIGHT;
  private int m_iconizedWidth = ICONIZED_WIDTH;
  private int m_x;
  private int m_y;

  private String m_title;
  private JLabel m_titleLabel;
  private JLabel m_iconLabel;

  private boolean m_iconified;
  private boolean m_maximized;
  private boolean m_selected;

  private boolean m_iconizeable;
  private boolean m_resizeable;
  private boolean m_closeable;
  private boolean m_maximizeable;
 
  // only false when maximized
  private transient boolean m_draggable = true;

  private transient JRootPane m_rootPane;

  // used to wrap m_titlePanel and m_rootPane
  private JPanel m_frameContentPanel;

  private JPanel m_titlePanel; 
  private JPanel m_contentPanel;
  private JPanel m_buttonPanel; 
  private JPanel m_buttonWrapperPanel;

  private InnerFrameButton m_iconize;
  private InnerFrameButton m_close;
  private InnerFrameButton m_maximize;

  private ImageIcon m_frameIcon = DEFAULT_FRAME_ICON;

  private NorthResizeEdge m_northResizer;
  private SouthResizeEdge m_southResizer;
  private EastResizeEdge m_eastResizer;
  private WestResizeEdge m_westResizer;

  public InnerFrame() {
    this("");
  }

  public InnerFrame(String title) {
    this(title, null);
  }

  public InnerFrame(String title, ImageIcon frameIcon) {
    this(title, frameIcon, true, true, true, true);
  }

  public InnerFrame(String title, ImageIcon frameIcon,
   boolean resizeable, boolean iconizeable, 
   boolean maximizeable, boolean closeable) {
    super.setLayout(new BorderLayout());
    attachNorthResizeEdge();
    attachSouthResizeEdge();
    attachEastResizeEdge();
    attachWestResizeEdge();
    populateInnerFrame();

    setTitle(title);
    setResizeable(resizeable);
    setIconizeable(iconizeable);
    setCloseable(closeable);
    setMaximizeable(maximizeable);
    if (frameIcon != null)
      setFrameIcon(frameIcon);
  }

  protected void populateInnerFrame() {
    m_rootPane = new JRootPane();
    m_frameContentPanel = new JPanel();
    m_frameContentPanel.setLayout(new BorderLayout());
    createTitleBar();
    m_contentPanel = new JPanel(new BorderLayout());
    setContentPane(m_contentPanel);
    m_frameContentPanel.add(m_titlePanel, BorderLayout.NORTH);
    m_frameContentPanel.add(m_rootPane, BorderLayout.CENTER);
    setupCapturePanel();
    super.add(m_frameContentPanel, BorderLayout.CENTER);
  }

  protected void setupCapturePanel() {
    CapturePanel mouseTrap = new CapturePanel();
    m_rootPane.getLayeredPane().add(mouseTrap, 
      new Integer(Integer.MIN_VALUE));
    mouseTrap.setBounds(0,0,10000,10000);
    setGlassPane(new GlassCapturePanel());
    getGlassPane().setVisible(true);
  } 

  // don't allow this in root pane containers 
  public Component add(Component c) {
    return null;
  }

  // don't allow this in root pane containers 
  public void setLayout(LayoutManager mgr) {
  }

  // make sure layouts don't make this too small 
  public Dimension getMinimumSize() {
    return new Dimension(150,100);
  }

  // make sure layouts don't make this too small 
  public Dimension getPreferredSize() {
    return new Dimension(250,200);
  }

  // make sure layouts don't make this too big
  // ..doesn't matter in layered panes because of null layout 
  public Dimension getMaximumSize() {
    return new Dimension(250,200);
  }

  public JMenuBar getJMenuBar() {
    return m_rootPane.getJMenuBar();
  }

  public JRootPane getRootPane() {
    return m_rootPane;
  }

  public Container getContentPane() {
    return m_rootPane.getContentPane();
  }

  public Component getGlassPane() {
    return m_rootPane.getGlassPane();
  }

  public JLayeredPane getLayeredPane() {
    return m_rootPane.getLayeredPane();
  }

  public void setJMenuBar(JMenuBar menu) {
    m_rootPane.setJMenuBar(menu);
  }

  public void setContentPane(Container content) {
    m_rootPane.setContentPane(content);
  }

  public void setGlassPane(Component glass) {
    m_rootPane.setGlassPane(glass);
  }

  public void setLayeredPane(JLayeredPane layered) {
    m_rootPane.setLayeredPane(layered);
  }

  public void toFront() {
    if (getParent() instanceof JLayeredPane)
      ((JLayeredPane) getParent()).moveToFront(this);
    if (!isSelected())
      setSelected(true);
  }

  public void close() {
    if (getParent() instanceof JLayeredPane) {
      JLayeredPane jlp = (JLayeredPane) getParent();
      jlp.remove(InnerFrame.this);
      jlp.repaint();
    }
  }

  public boolean isIconizeable() {
    return m_iconizeable;
  }

  public void setIconizeable(boolean b) {
    m_iconizeable = b;
    m_iconize.setVisible(b);
    m_titlePanel.revalidate();
  }

  public boolean isCloseable() {
    return m_closeable;
  }

  public void setCloseable(boolean b) {
    m_closeable = b;
    m_close.setVisible(b);
    m_titlePanel.revalidate();
  }

  public boolean isMaximizeable() {
    return m_maximizeable;
  }

  public void setMaximizeable(boolean b) {
    m_maximizeable = b;
    m_maximize.setVisible(b);
    m_titlePanel.revalidate();
  }

  public boolean isIconified() {
    return m_iconified;
  }

  public void setIconified(boolean b) {
    m_iconified = b;
    if (b) {
      if (isMaximized())
        setMaximized(false);
      toFront();
      m_width = getWidth();     // remember width
      m_height = getHeight();   // remember height
      setBounds(getX(), getY(), ICONIZED_WIDTH, 
        m_titleBarHeight + 2*BORDER_THICKNESS);
      m_iconize.setIcon(RESTORE_BUTTON_ICON);
      m_iconize.setPressedIcon(PRESS_RESTORE_BUTTON_ICON);
      setResizeable(false);
    }
    else {
      toFront();
      setBounds(getX(), getY(), m_width, m_height);
      m_iconize.setIcon(ICONIZE_BUTTON_ICON);
      m_iconize.setPressedIcon(PRESS_ICONIZE_BUTTON_ICON);
      setResizeable(true);
    }
    revalidate();
  }

  public boolean isMaximized() {
    return m_maximized;
  }

  public void setMaximized(boolean b) {
    m_maximized = b;
    if (b)
    {
      if (isIconified())
        setIconified(false);
      toFront();
      m_width = getWidth();     // remember width
      m_height = getHeight();   // remember height
      m_x = getX();             // remember x
      m_y = getY();             // remember y
      setBounds(0, 0, getParent().getWidth(), getParent().getHeight());
      m_maximize.setIcon(MINIMIZE_BUTTON_ICON);
      m_maximize.setPressedIcon(PRESS_MINIMIZE_BUTTON_ICON);
      setResizeable(false);
      setDraggable(false);
    }
    else {
      toFront();
      setBounds(m_x, m_y, m_width, m_height);
      m_maximize.setIcon(MAXIMIZE_BUTTON_ICON);
      m_maximize.setPressedIcon(PRESS_MAXIMIZE_BUTTON_ICON);
      setResizeable(true);
      setDraggable(true);
    }
    revalidate();
  }

  public boolean isSelected() {
    return m_selected;
  }

  public void setSelected(boolean b) {
    if (b) 
    {       
      if (m_selected != true && getParent() instanceof JLayeredPane) 
      {
        JLayeredPane jlp = (JLayeredPane) getParent();
        int layer = jlp.getLayer(this);
        Component[] components = jlp.getComponentsInLayer(layer);
        for (int i=0; i<components.length; i++) {
          if (components[i] instanceof InnerFrame) {
            InnerFrame tempFrame = (InnerFrame) components[i];
            if (!tempFrame.equals(this))
              tempFrame.setSelected(false);
          }
        }
        m_selected = true;
        updateBorderColors();
        updateTitleBarColors();
        getGlassPane().setVisible(false);
        repaint();
      }
    }
    else 
    {  
      m_selected = false;
      updateBorderColors();
      updateTitleBarColors();
      getGlassPane().setVisible(true);
      repaint();
    }
  }

  ////////////////////////////////////////////
  //////////////// Title Bar /////////////////
  ////////////////////////////////////////////

  public void setTitleBarBackground(Color c) {
    m_titleBarBackground = c;
    updateTitleBarColors();
  }

  public Color getTitleBarBackground() {
    return m_titleBarBackground;
  }

  public void setTitleBarForeground(Color c) {
    m_titleBarForeground = c;
    m_titleLabel.setForeground(c);
    m_titlePanel.repaint();
  }

  public Color getTitleBarForeground() {
    return m_titleBarForeground;
  }

  public void setSelectedTitleBarBackground(Color c) {
    m_titleBarBackground = c;
    updateTitleBarColors();
  }

  public Color getSelectedTitleBarBackground() {