Java/Swing JFC/LayeredPane
Содержание
A demonstration of the JLayeredPane class
<source lang="java">
/* Java Swing, 2nd Edition By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole ISBN: 0-596-00408-7 Publisher: O"Reilly
- /
// SimpleLayers.java //A demonstration of the JLayeredPane class. // import java.awt.Color; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLayeredPane; public class SimpleLayers extends JFrame {
public SimpleLayers() {
super("LayeredPane Demonstration");
setSize(200, 150);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JLayeredPane lp = getLayeredPane();
// Create 3 buttons
JButton top = new JButton();
top.setBackground(Color.white);
top.setBounds(20, 20, 50, 50);
JButton middle = new JButton();
middle.setBackground(Color.gray);
middle.setBounds(40, 40, 50, 50);
JButton bottom = new JButton();
bottom.setBackground(Color.black);
bottom.setBounds(60, 60, 50, 50);
// Place the buttons in different layers
lp.add(middle, new Integer(2));
lp.add(top, new Integer(3));
lp.add(bottom, new Integer(1));
}
public static void main(String[] args) {
SimpleLayers sl = new SimpleLayers();
sl.setVisible(true);
}
}
</source>
Implement buttons at different layers
<source lang="java">
import java.awt.Color; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLayeredPane; public class Main extends JFrame {
public Main() {
setSize(200, 150);
setDefaultCloseOperation(EXIT_ON_CLOSE);
JLayeredPane lp = getLayeredPane();
JButton top = new JButton();
top.setBackground(Color.white);
top.setBounds(20, 20, 50, 50);
JButton middle = new JButton();
middle.setBackground(Color.gray);
middle.setBounds(40, 40, 50, 50);
JButton bottom = new JButton();
bottom.setBackground(Color.black);
bottom.setBounds(60, 60, 50, 50);
lp.add(middle, new Integer(2));
lp.add(top, new Integer(3));
lp.add(bottom, new Integer(1));
setVisible(true);
}
public static void main(String[] args) {
new Main();
}
}
</source>
JLayeredPane Sample
<source lang="java">
import java.awt.BorderLayout; import java.awt.Container; import javax.swing.JDesktopPane; import javax.swing.JFrame; import javax.swing.JInternalFrame; import javax.swing.JLabel; import javax.swing.JLayeredPane; public class JLayeredPaneSample {
public static void main(String args[]) {
JFrame f = new JFrame("JDesktopPane Sample");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container content = f.getContentPane();
JLayeredPane desktop = new JDesktopPane();
desktop.setOpaque(false);
desktop.add(createLayer("Open 1"), JLayeredPane.POPUP_LAYER);
desktop.add(createLayer("Iconified"), JLayeredPane.DEFAULT_LAYER);
desktop.add(createLayer("Open 2"), JLayeredPane.PALETTE_LAYER);
content.add(desktop, BorderLayout.CENTER);
f.setSize(300, 200);
f.setVisible(true);
}
public static JInternalFrame createLayer(String label) {
return new SelfInternalFrame(label);
}
static class SelfInternalFrame extends JInternalFrame {
public SelfInternalFrame(String s) {
getContentPane().add(new JLabel(s), BorderLayout.CENTER);
setBounds(50, 50, 100, 100);
setResizable(true);
setClosable(true);
setMaximizable(true);
setIconifiable(true);
setTitle(s);
setVisible(true);
}
}
}
</source>
Layered Pane Demo
<source lang="java">
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; import javax.swing.event.*; public class LayeredPaneDemo extends JFrame {
public LayeredPaneDemo()
{
super("Custom MDI: Part II");
setSize(570,400);
getContentPane().setBackground(new Color(244,232,152));
getLayeredPane().setOpaque(true);
InnerFrame[] frames = new InnerFrame[5];
for(int i=0; i<5; i++)
{
frames[i] = new InnerFrame("InnerFrame " + i);
frames[i].setBounds(50+i*20, 50+i*20, 200, 200);
getLayeredPane().add(frames[i]);
}
WindowListener l = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
Dimension dim = getToolkit().getScreenSize();
setLocation(dim.width/2-getWidth()/2,
dim.height/2-getHeight()/2);
ImageIcon image = new ImageIcon("spiral.gif");
setIconImage(image.getImage());
addWindowListener(l);
setVisible(true);
}
public static void main(String[] args)
{
new LayeredPaneDemo();
}
} class InnerFrame extends JPanel {
private static ImageIcon ICONIZE_BUTTON_ICON = new ImageIcon("iconize.gif");
private static ImageIcon RESTORE_BUTTON_ICON = new ImageIcon("restore.gif");
private static ImageIcon CLOSE_BUTTON_ICON = new ImageIcon("close.gif");
private static ImageIcon PRESS_CLOSE_BUTTON_ICON = new ImageIcon("pressclose.gif");
private static ImageIcon PRESS_RESTORE_BUTTON_ICON = new ImageIcon("pressrestore.gif");
private static ImageIcon PRESS_ICONIZE_BUTTON_ICON = new ImageIcon("pressiconize.gif");
private static ImageIcon DEFAULT_FRAME_ICON = new ImageIcon("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 TITLE_BAR_BG_COLOR = new Color(108,190,116);
private static Color BORDER_COLOR = new Color(8,90,16);
private int m_titleBarHeight = TITLE_BAR_HEIGHT;
private int m_width = WIDTH;
private int m_height = HEIGHT;
private int m_iconizedWidth = ICONIZED_WIDTH;
private String m_title;
private JLabel m_titleLabel;
private JLabel m_iconLabel;
private boolean m_iconified;
private boolean m_iconizeable;
private boolean m_resizeable;
private boolean m_closeable;
// used to wrap title bar and contentPanel
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 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);
}
public InnerFrame(String title, ImageIcon frameIcon,
boolean resizeable, boolean iconizeable, boolean closeable) {
super.setLayout(new BorderLayout());
attachNorthResizeEdge();
attachSouthResizeEdge();
attachEastResizeEdge();
attachWestResizeEdge();
populateInnerFrame();
setTitle(title);
setResizeable(resizeable);
setIconizeable(iconizeable);
setCloseable(closeable);
if (frameIcon != null)
setFrameIcon(frameIcon);
}
protected void populateInnerFrame() {
m_frameContentPanel = new JPanel();
m_frameContentPanel.setLayout(new BorderLayout());
createTitleBar();
m_contentPanel = new JPanel();
m_frameContentPanel.add(m_titlePanel, BorderLayout.NORTH);
m_frameContentPanel.add(m_contentPanel, BorderLayout.CENTER);
super.add(m_frameContentPanel, BorderLayout.CENTER);
}
public Component add(Component c) {
return((m_contentPanel == null) ? null : m_contentPanel.add(c));
}
public void setLayout(LayoutManager mgr) {
if (m_contentPanel != null)
m_contentPanel.setLayout(mgr);
}
public void toFront() {
if (getParent() instanceof JLayeredPane)
((JLayeredPane) getParent()).moveToFront(this);
}
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 isIconified() {
return m_iconified;
}
public void setIconified(boolean b) {
m_iconified = b;
if (b) {
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 {
setBounds(getX(), getY(), m_width, m_height);
m_iconize.setIcon(ICONIZE_BUTTON_ICON);
m_iconize.setPressedIcon(PRESS_ICONIZE_BUTTON_ICON);
setResizeable(true);
}
revalidate();
}
////////////////////////////////////////////
//////////////// Title Bar /////////////////
////////////////////////////////////////////
public void setFrameIcon(ImageIcon fi) {
m_frameIcon = fi;
if (fi != null) {
if (m_frameIcon.getIconHeight() > TITLE_BAR_HEIGHT)
setTitleBarHeight(m_frameIcon.getIconHeight() + 2*FRAME_ICON_PADDING);
m_iconLabel.setIcon(m_frameIcon);
}
else setTitleBarHeight(TITLE_BAR_HEIGHT);
revalidate();
}
public ImageIcon getFrameIcon() {
return m_frameIcon;
}
public void setTitle(String s) {
m_title = s;
m_titleLabel.setText(s);
m_titlePanel.repaint();
}
public String getTitle() {
return m_title;
}
public void setTitleBarHeight(int h) {
m_titleBarHeight = h;
}
public int getTitleBarHeight() {
return m_titleBarHeight;
}
// create the title bar: m_titlePanel
protected void createTitleBar() {
m_titlePanel = new JPanel() {
public Dimension getPreferredSize() {
return new Dimension(InnerFrame.this.getWidth(),
m_titleBarHeight);
}
};
m_titlePanel.setLayout(new BorderLayout());
m_titlePanel.setOpaque(true);
m_titlePanel.setBackground(TITLE_BAR_BG_COLOR);
m_titleLabel = new JLabel();
m_titleLabel.setForeground(Color.black);
m_close = new InnerFrameButton(CLOSE_BUTTON_ICON);
m_close.setPressedIcon(PRESS_CLOSE_BUTTON_ICON);
m_close.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.close();
}
});
m_iconize = new InnerFrameButton(ICONIZE_BUTTON_ICON);
m_iconize.setPressedIcon(PRESS_ICONIZE_BUTTON_ICON);
m_iconize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setIconified(!InnerFrame.this.isIconified());
}
});
m_buttonWrapperPanel = new JPanel();
m_buttonWrapperPanel.setOpaque(false);
m_buttonPanel = new JPanel(new GridLayout(1,2));
m_buttonPanel.setOpaque(false);
m_buttonPanel.add(m_iconize);
m_buttonPanel.add(m_close);
m_buttonPanel.setAlignmentX(0.5f);
m_buttonPanel.setAlignmentY(0.5f);
m_buttonWrapperPanel.add(m_buttonPanel);
m_iconLabel = new JLabel();
m_iconLabel.setBorder(new EmptyBorder(
FRAME_ICON_PADDING, FRAME_ICON_PADDING,
FRAME_ICON_PADDING, FRAME_ICON_PADDING));
if (m_frameIcon != null)
m_iconLabel.setIcon(m_frameIcon);
m_titlePanel.add(m_titleLabel, BorderLayout.CENTER);
m_titlePanel.add(m_buttonWrapperPanel, BorderLayout.EAST);
m_titlePanel.add(m_iconLabel, BorderLayout.WEST);
InnerFrameTitleBarMouseAdapter iftbma =
new InnerFrameTitleBarMouseAdapter(this);
m_titlePanel.addMouseListener(iftbma);
m_titlePanel.addMouseMotionListener(iftbma);
}
// title bar mouse adapter for frame dragging
class InnerFrameTitleBarMouseAdapter
extends MouseInputAdapter
{
InnerFrame m_if;
int m_XDifference, m_YDifference;
boolean m_dragging;
public InnerFrameTitleBarMouseAdapter(InnerFrame inf) {
m_if = inf;
}
public void mouseDragged(MouseEvent e) {
if (m_dragging)
m_if.setLocation(e.getX()-m_XDifference + getX(),
e.getY()-m_YDifference + getY());
}
public void mousePressed(MouseEvent e) {
m_if.toFront();
m_XDifference = e.getX();
m_YDifference = e.getY();
m_dragging = true;
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
}
// custom button class for title bar
class InnerFrameButton extends JButton
{
Dimension m_dim;
public InnerFrameButton(ImageIcon ii) {
super(ii);
m_dim = new Dimension(ii.getIconWidth(), ii.getIconHeight());
setOpaque(false);
setContentAreaFilled(false);
setBorder(null);
}
public Dimension getPreferredSize() {
return m_dim;
}
public Dimension getMinimumSize() {
return m_dim;
}
public Dimension getMaximumSize() {
return m_dim;
}
}
///////////////////////////////////////////////
//////////////// Resizability /////////////////
///////////////////////////////////////////////
public boolean isResizeable() {
return m_resizeable;
}
public void setResizeable(boolean b) {
if (!b && m_resizeable == true) {
m_northResizer.removeMouseListener(m_northResizer);
m_northResizer.removeMouseMotionListener(m_northResizer);
m_southResizer.removeMouseListener(m_southResizer);
m_southResizer.removeMouseMotionListener(m_southResizer);
m_eastResizer.removeMouseListener(m_eastResizer);
m_eastResizer.removeMouseMotionListener(m_eastResizer);
m_westResizer.removeMouseListener(m_westResizer);
m_westResizer.removeMouseMotionListener(m_westResizer);
}
else if (m_resizeable == false) {
m_northResizer.addMouseListener(m_northResizer);
m_northResizer.addMouseMotionListener(m_northResizer);
m_southResizer.addMouseListener(m_southResizer);
m_southResizer.addMouseMotionListener(m_southResizer);
m_eastResizer.addMouseListener(m_eastResizer);
m_eastResizer.addMouseMotionListener(m_eastResizer);
m_westResizer.addMouseListener(m_westResizer);
m_westResizer.addMouseMotionListener(m_westResizer);
}
m_resizeable = b;
}
protected void attachNorthResizeEdge() {
m_northResizer = new NorthResizeEdge(this);
super.add(m_northResizer, BorderLayout.NORTH);
}
protected void attachSouthResizeEdge() {
m_southResizer = new SouthResizeEdge(this);
super.add(m_southResizer, BorderLayout.SOUTH);
}
protected void attachEastResizeEdge() {
m_eastResizer = new EastResizeEdge(this);
super.add(m_eastResizer, BorderLayout.EAST);
}
protected void attachWestResizeEdge() {
m_westResizer = new WestResizeEdge(this);
super.add(m_westResizer, BorderLayout.WEST);
}
class EastResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected EastResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth() + e.getX() >= MIN_WIDTH)
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
m_resizeComponent.getWidth() + e.getX(),
m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.E_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
}
}
class WestResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int m_dragX, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected WestResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth()-
(e.getX()-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(
m_resizeComponent.getX() + (e.getX()-m_dragX),
m_resizeComponent.getY(),
m_resizeComponent.getWidth()-(e.getX()-m_dragX),
m_resizeComponent.getHeight());
else
if (m_resizeComponent.getX() + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.W_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_rightX = m_resizeComponent.getX() +
m_resizeComponent.getWidth();
m_dragging = true;
m_dragX = e.getX();
}
}
class NorthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int NORTH = 0;
private static final int NORTHEAST = 1;
private static final int NORTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX, m_lowerY;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected NorthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.N_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case NORTH:
if (h-(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y + (ey-m_dragY),
w, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w, MIN_HEIGHT);
break;
case NORTHEAST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w + (ex-(getWidth()-CORNER)),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w + (ex-(getWidth()-CORNER)),
MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
case NORTHWEST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
y + (ey-m_dragY), w-(ex-m_dragX),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w, h-(ey-m_dragY));
}
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
m_lowerY-MIN_HEIGHT, w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
m_lowerY = m_resizeComponent.getY()
+ m_resizeComponent.getHeight();
if (e.getX() < CORNER) {
m_mode = NORTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = NORTHEAST;
}
else {
m_mode = NORTH;
}
}
}
class SouthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int SOUTH = 0;
private static final int SOUTHEAST = 1;
private static final int SOUTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected SouthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.S_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case SOUTH:
if (h+(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y, w, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w, MIN_HEIGHT);
break;
case SOUTHEAST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x, y,
MIN_WIDTH, h+(ey-m_dragY));
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
y, MIN_WIDTH, MIN_HEIGHT);
break;
case SOUTHWEST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH, y,
MIN_WIDTH, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w,
h+(ey-m_dragY));
}
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
if (e.getX() < CORNER) {
m_mode = SOUTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = SOUTHEAST;
}
else {
m_mode = SOUTH;
}
}
}
}
</source>
LayeredPane Demo 2: Custom MDI
<source lang="java">
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; import javax.swing.event.*; public class LayeredPaneDemo2 extends JFrame {
public LayeredPaneDemo2()
{
super("Custom MDI: Part III");
setSize(570,400);
getContentPane().setBackground(new Color(244,232,152));
getLayeredPane().setOpaque(true); // VERY IMPORTANT!!
ImageIcon ii = new ImageIcon("earth.jpg");
InnerFrame[] frames = new InnerFrame[5];
for(int i=0; i<5; i++)
{
frames[i] = new InnerFrame("InnerFrame " + i);
frames[i].setBounds(50+i*20, 50+i*20, 200, 200);
frames[i].getContentPane().add(new JScrollPane(new JLabel(ii)));
getLayeredPane().add(frames[i]);
}
WindowListener l = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
Dimension dim = getToolkit().getScreenSize();
setLocation(dim.width/2-getWidth()/2,
dim.height/2-getHeight()/2);
ImageIcon image = new ImageIcon("spiral.gif");
setIconImage(image.getImage());
addWindowListener(l);
setVisible(true);
}
public static void main(String[] args)
{
new LayeredPaneDemo2();
}
} class InnerFrame extends JPanel implements RootPaneContainer {
private static ImageIcon ICONIZE_BUTTON_ICON = new ImageIcon("iconize.gif");
private static ImageIcon RESTORE_BUTTON_ICON = new ImageIcon("restore.gif");
private static ImageIcon CLOSE_BUTTON_ICON = new ImageIcon("close.gif");
private static ImageIcon MAXIMIZE_BUTTON_ICON = new ImageIcon("maximize.gif");
private static ImageIcon MINIMIZE_BUTTON_ICON = new ImageIcon("minimize.gif");
private static ImageIcon PRESS_CLOSE_BUTTON_ICON = new ImageIcon("pressclose.gif");
private static ImageIcon PRESS_RESTORE_BUTTON_ICON = new ImageIcon("pressrestore.gif");
private static ImageIcon PRESS_ICONIZE_BUTTON_ICON = new ImageIcon("pressiconize.gif");
private static ImageIcon PRESS_MAXIMIZE_BUTTON_ICON = new ImageIcon("pressmaximize.gif");
private static ImageIcon PRESS_MINIMIZE_BUTTON_ICON = new ImageIcon("pressminimize.gif");
private static ImageIcon DEFAULT_FRAME_ICON = new ImageIcon("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 TITLE_BAR_BG_COLOR = new Color(108,190,116);
private static Color BORDER_COLOR = new Color(8,90,16);
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_iconizeable;
private boolean m_resizeable;
private boolean m_closeable;
private boolean m_maximizeable;
// only false when maximized
private boolean m_draggable = true;
private 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());
m_rootPane.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);
}
// 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) {
}
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);
}
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();
}
////////////////////////////////////////////
//////////////// Title Bar /////////////////
////////////////////////////////////////////
public void setFrameIcon(ImageIcon fi) {
m_frameIcon = fi;
if (fi != null) {
if (m_frameIcon.getIconHeight() > TITLE_BAR_HEIGHT)
setTitleBarHeight(m_frameIcon.getIconHeight() + 2*FRAME_ICON_PADDING);
m_iconLabel.setIcon(m_frameIcon);
}
else setTitleBarHeight(TITLE_BAR_HEIGHT);
revalidate();
}
public ImageIcon getFrameIcon() {
return m_frameIcon;
}
public void setTitle(String s) {
m_title = s;
m_titleLabel.setText(s);
m_titlePanel.repaint();
}
public String getTitle() {
return m_title;
}
public void setTitleBarHeight(int h) {
m_titleBarHeight = h;
}
public int getTitleBarHeight() {
return m_titleBarHeight;
}
public boolean isDraggable() {
return m_draggable;
}
private void setDraggable(boolean b) {
m_draggable = b;
}
// create the title bar: m_titlePanel
protected void createTitleBar() {
m_titlePanel = new JPanel() {
public Dimension getPreferredSize() {
return new Dimension(InnerFrame.this.getWidth(),
m_titleBarHeight);
}
};
m_titlePanel.setLayout(new BorderLayout());
m_titlePanel.setOpaque(true);
m_titlePanel.setBackground(TITLE_BAR_BG_COLOR);
m_titleLabel = new JLabel();
m_titleLabel.setForeground(Color.black);
m_close = new InnerFrameButton(CLOSE_BUTTON_ICON);
m_close.setPressedIcon(PRESS_CLOSE_BUTTON_ICON);
m_close.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.close();
}
});
m_maximize = new InnerFrameButton(MAXIMIZE_BUTTON_ICON);
m_maximize.setPressedIcon(PRESS_MAXIMIZE_BUTTON_ICON);
m_maximize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setMaximized(!InnerFrame.this.isMaximized());
}
});
m_iconize = new InnerFrameButton(ICONIZE_BUTTON_ICON);
m_iconize.setPressedIcon(PRESS_ICONIZE_BUTTON_ICON);
m_iconize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setIconified(!InnerFrame.this.isIconified());
}
});
m_buttonWrapperPanel = new JPanel();
m_buttonWrapperPanel.setOpaque(false);
m_buttonPanel = new JPanel(new GridLayout(1,3));
m_buttonPanel.setOpaque(false);
m_buttonPanel.add(m_iconize);
m_buttonPanel.add(m_maximize);
m_buttonPanel.add(m_close);
m_buttonPanel.setAlignmentX(0.5f);
m_buttonPanel.setAlignmentY(0.5f);
m_buttonWrapperPanel.add(m_buttonPanel);
m_iconLabel = new JLabel();
m_iconLabel.setBorder(new EmptyBorder(
FRAME_ICON_PADDING, FRAME_ICON_PADDING,
FRAME_ICON_PADDING, FRAME_ICON_PADDING));
if (m_frameIcon != null)
m_iconLabel.setIcon(m_frameIcon);
m_titlePanel.add(m_titleLabel, BorderLayout.CENTER);
m_titlePanel.add(m_buttonWrapperPanel, BorderLayout.EAST);
m_titlePanel.add(m_iconLabel, BorderLayout.WEST);
InnerFrameTitleBarMouseAdapter iftbma =
new InnerFrameTitleBarMouseAdapter(this);
m_titlePanel.addMouseListener(iftbma);
m_titlePanel.addMouseMotionListener(iftbma);
}
// title bar mouse adapter for frame dragging
class InnerFrameTitleBarMouseAdapter
extends MouseInputAdapter
{
InnerFrame m_if;
int m_XDifference, m_YDifference;
boolean m_dragging;
public InnerFrameTitleBarMouseAdapter(InnerFrame inf) {
m_if = inf;
}
// don"t allow dragging outside of parent
public void mouseDragged(MouseEvent e) {
int ex = e.getX();
int ey = e.getY();
int x = m_if.getX();
int y = m_if.getY();
int w = m_if.getParent().getWidth();
int h = m_if.getParent().getHeight();
if (m_dragging & m_if.isDraggable()) {
if ((ey + y > 0 && ey + y < h) && (ex + x > 0 && ex + x < w))
m_if.setLocation(ex-m_XDifference + x, ey-m_YDifference + y);
else if (!(ey + y > 0 && ey + y < h) && (ex + x > 0 && ex + x < w)) {
if (!(ey + y > 0) && ey + y < h)
m_if.setLocation(ex-m_XDifference + x, 0-m_YDifference);
else if (ey + y > 0 && !(ey + y < h))
m_if.setLocation(ex-m_XDifference + x, h-m_YDifference);
}
else if ((ey + y > 0 && ey + y < h) && !(ex + x > 0 && ex + x < w)) {
if (!(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, ey-m_YDifference + y);
else if (ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, ey-m_YDifference + y);
}
else if (!(ey + y > 0) && ey + y < h && !(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, 0-m_YDifference);
else if (!(ey + y > 0) && ey + y < h && ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, 0-m_YDifference);
else if (ey + y > 0 && !(ey + y < h) && !(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, h-m_YDifference);
else if (ey + y > 0 && !(ey + y < h) && ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, h-m_YDifference);
}
}
public void mousePressed(MouseEvent e) {
m_if.toFront();
m_XDifference = e.getX();
m_YDifference = e.getY();
m_dragging = true;
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
}
// custom button class for title bar
class InnerFrameButton extends JButton
{
Dimension m_dim;
public InnerFrameButton(ImageIcon ii) {
super(ii);
m_dim = new Dimension(ii.getIconWidth(), ii.getIconHeight());
setOpaque(false);
setContentAreaFilled(false);
setBorder(null);
}
public Dimension getPreferredSize() {
return m_dim;
}
public Dimension getMinimumSize() {
return m_dim;
}
public Dimension getMaximumSize() {
return m_dim;
}
}
///////////////////////////////////////////////
/////////// Mouse Event Capturing /////////////
///////////////////////////////////////////////
class CapturePanel extends JPanel
{
public CapturePanel() {
MouseInputAdapter mia = new MouseInputAdapter() {};
addMouseListener(mia);
addMouseMotionListener(mia);
}
}
///////////////////////////////////////////////
//////////////// Resizability /////////////////
///////////////////////////////////////////////
public boolean isResizeable() {
return m_resizeable;
}
public void setResizeable(boolean b) {
if (!b && m_resizeable == true) {
m_northResizer.removeMouseListener(m_northResizer);
m_northResizer.removeMouseMotionListener(m_northResizer);
m_southResizer.removeMouseListener(m_southResizer);
m_southResizer.removeMouseMotionListener(m_southResizer);
m_eastResizer.removeMouseListener(m_eastResizer);
m_eastResizer.removeMouseMotionListener(m_eastResizer);
m_westResizer.removeMouseListener(m_westResizer);
m_westResizer.removeMouseMotionListener(m_westResizer);
}
else if (b && m_resizeable == false) {
m_northResizer.addMouseListener(m_northResizer);
m_northResizer.addMouseMotionListener(m_northResizer);
m_southResizer.addMouseListener(m_southResizer);
m_southResizer.addMouseMotionListener(m_southResizer);
m_eastResizer.addMouseListener(m_eastResizer);
m_eastResizer.addMouseMotionListener(m_eastResizer);
m_westResizer.addMouseListener(m_westResizer);
m_westResizer.addMouseMotionListener(m_westResizer);
}
m_resizeable = b;
}
protected void attachNorthResizeEdge() {
m_northResizer = new NorthResizeEdge(this);
super.add(m_northResizer, BorderLayout.NORTH);
}
protected void attachSouthResizeEdge() {
m_southResizer = new SouthResizeEdge(this);
super.add(m_southResizer, BorderLayout.SOUTH);
}
protected void attachEastResizeEdge() {
m_eastResizer = new EastResizeEdge(this);
super.add(m_eastResizer, BorderLayout.EAST);
}
protected void attachWestResizeEdge() {
m_westResizer = new WestResizeEdge(this);
super.add(m_westResizer, BorderLayout.WEST);
}
class EastResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected EastResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth() + e.getX() >= MIN_WIDTH)
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
m_resizeComponent.getWidth() + e.getX(),
m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.E_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
}
}
class WestResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int m_dragX, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected WestResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth()-
(e.getX()-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(
m_resizeComponent.getX() + (e.getX()-m_dragX),
m_resizeComponent.getY(),
m_resizeComponent.getWidth()-(e.getX()-m_dragX),
m_resizeComponent.getHeight());
else
if (m_resizeComponent.getX() + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.W_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_rightX = m_resizeComponent.getX() +
m_resizeComponent.getWidth();
m_dragging = true;
m_dragX = e.getX();
}
}
class NorthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int NORTH = 0;
private static final int NORTHEAST = 1;
private static final int NORTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX, m_lowerY;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected NorthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.N_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case NORTH:
if (h-(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y + (ey-m_dragY),
w, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w, MIN_HEIGHT);
break;
case NORTHEAST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w + (ex-(getWidth()-CORNER)),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w + (ex-(getWidth()-CORNER)),
MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
case NORTHWEST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
y + (ey-m_dragY), w-(ex-m_dragX),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w, h-(ey-m_dragY));
}
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
m_lowerY-MIN_HEIGHT, w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
m_lowerY = m_resizeComponent.getY()
+ m_resizeComponent.getHeight();
if (e.getX() < CORNER) {
m_mode = NORTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = NORTHEAST;
}
else {
m_mode = NORTH;
}
}
}
class SouthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int SOUTH = 0;
private static final int SOUTHEAST = 1;
private static final int SOUTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected SouthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(BORDER_COLOR);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.S_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case SOUTH:
if (h+(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y, w, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w, MIN_HEIGHT);
break;
case SOUTHEAST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x, y,
MIN_WIDTH, h+(ey-m_dragY));
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
y, MIN_WIDTH, MIN_HEIGHT);
break;
case SOUTHWEST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH, y,
MIN_WIDTH, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w,
h+(ey-m_dragY));
}
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
if (e.getX() < CORNER) {
m_mode = SOUTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = SOUTHEAST;
}
else {
m_mode = SOUTH;
}
}
}
}
</source>
LayeredPane Demo 3: Custom MDI
<source lang="java">
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.border.*; import javax.swing.event.*; public class LayeredPaneDemo3 extends JFrame {
public LayeredPaneDemo3()
{
super("Custom MDI: Part IV");
setSize(570,400);
getContentPane().setBackground(new Color(244,232,152));
setLayeredPane(new MDIPane());
ImageIcon ii = new ImageIcon("earth.jpg");
InnerFrame[] frames = new InnerFrame[5];
for(int i=0; i<5; i++)
{
frames[i] = new InnerFrame("InnerFrame " + i);
frames[i].setBounds(50+i*20, 50+i*20, 200, 200);
frames[i].getContentPane().add(
new JScrollPane(new JLabel(ii)));
getLayeredPane().add(frames[i]);
}
WindowListener l = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
Dimension dim = getToolkit().getScreenSize();
setLocation(dim.width/2-getWidth()/2,
dim.height/2-getHeight()/2);
ImageIcon image = new ImageIcon("spiral.gif");
setIconImage(image.getImage());
addWindowListener(l);
setVisible(true);
}
public static void main(String[] args)
{
new LayeredPaneDemo3();
}
} class InnerFrame extends JPanel implements RootPaneContainer {
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 boolean m_draggable = true;
private 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) {
}
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() {
return m_selectedTitleBarBackground;
}
protected void updateTitleBarColors() {
if (isSelected())
m_titlePanel.setBackground(m_selectedTitleBarBackground);
else
m_titlePanel.setBackground(m_titleBarBackground);
}
public void setFrameIcon(ImageIcon fi) {
m_frameIcon = fi;
if (fi != null) {
if (m_frameIcon.getIconHeight() > TITLE_BAR_HEIGHT)
setTitleBarHeight(m_frameIcon.getIconHeight() + 2*FRAME_ICON_PADDING);
m_iconLabel.setIcon(m_frameIcon);
}
else setTitleBarHeight(TITLE_BAR_HEIGHT);
revalidate();
}
public ImageIcon getFrameIcon() {
return m_frameIcon;
}
public void setTitle(String s) {
m_title = s;
m_titleLabel.setText(s);
m_titlePanel.repaint();
}
public String getTitle() {
return m_title;
}
public void setTitleBarHeight(int h) {
m_titleBarHeight = h;
}
public int getTitleBarHeight() {
return m_titleBarHeight;
}
public boolean isDraggable() {
return m_draggable;
}
private void setDraggable(boolean b) {
m_draggable = b;
}
// create the title bar: m_titlePanel
protected void createTitleBar() {
m_titlePanel = new JPanel() {
public Dimension getPreferredSize() {
return new Dimension(InnerFrame.this.getWidth(),
m_titleBarHeight);
}
};
m_titlePanel.setLayout(new BorderLayout());
m_titlePanel.setOpaque(true);
m_titlePanel.setBackground(m_titleBarBackground);
m_titleLabel = new JLabel();
m_titleLabel.setForeground(m_titleBarForeground);
m_close = new InnerFrameButton(CLOSE_BUTTON_ICON);
m_close.setPressedIcon(PRESS_CLOSE_BUTTON_ICON);
m_close.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.close();
}
});
m_maximize = new InnerFrameButton(MAXIMIZE_BUTTON_ICON);
m_maximize.setPressedIcon(PRESS_MAXIMIZE_BUTTON_ICON);
m_maximize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setMaximized(!InnerFrame.this.isMaximized());
}
});
m_iconize = new InnerFrameButton(ICONIZE_BUTTON_ICON);
m_iconize.setPressedIcon(PRESS_ICONIZE_BUTTON_ICON);
m_iconize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setIconified(!InnerFrame.this.isIconified());
}
});
m_buttonWrapperPanel = new JPanel();
m_buttonWrapperPanel.setOpaque(false);
m_buttonPanel = new JPanel(new GridLayout(1,3));
m_buttonPanel.setOpaque(false);
m_buttonPanel.add(m_iconize);
m_buttonPanel.add(m_maximize);
m_buttonPanel.add(m_close);
m_buttonPanel.setAlignmentX(0.5f);
m_buttonPanel.setAlignmentY(0.5f);
m_buttonWrapperPanel.add(m_buttonPanel);
m_iconLabel = new JLabel();
m_iconLabel.setBorder(new EmptyBorder(
FRAME_ICON_PADDING, FRAME_ICON_PADDING,
FRAME_ICON_PADDING, FRAME_ICON_PADDING));
if (m_frameIcon != null)
m_iconLabel.setIcon(m_frameIcon);
m_titlePanel.add(m_titleLabel, BorderLayout.CENTER);
m_titlePanel.add(m_buttonWrapperPanel, BorderLayout.EAST);
m_titlePanel.add(m_iconLabel, BorderLayout.WEST);
InnerFrameTitleBarMouseAdapter iftbma =
new InnerFrameTitleBarMouseAdapter(this);
m_titlePanel.addMouseListener(iftbma);
m_titlePanel.addMouseMotionListener(iftbma);
}
// title bar mouse adapter for frame dragging
class InnerFrameTitleBarMouseAdapter
extends MouseInputAdapter
{
InnerFrame m_if;
int m_XDifference, m_YDifference;
boolean m_dragging;
public InnerFrameTitleBarMouseAdapter(InnerFrame inf) {
m_if = inf;
}
// don"t allow dragging outside of parent
public void mouseDragged(MouseEvent e) {
int ex = e.getX();
int ey = e.getY();
int x = m_if.getX();
int y = m_if.getY();
int w = m_if.getParent().getWidth();
int h = m_if.getParent().getHeight();
if (m_dragging & m_if.isDraggable()) {
if ((ey + y > 0 && ey + y < h) && (ex + x > 0 && ex + x < w))
m_if.setLocation(ex-m_XDifference + x, ey-m_YDifference + y);
else if (!(ey + y > 0 && ey + y < h) && (ex + x > 0 && ex + x < w)) {
if (!(ey + y > 0) && ey + y < h)
m_if.setLocation(ex-m_XDifference + x, 0-m_YDifference);
else if (ey + y > 0 && !(ey + y < h))
m_if.setLocation(ex-m_XDifference + x, h-m_YDifference);
}
else if ((ey + y > 0 && ey + y < h) && !(ex + x > 0 && ex + x < w)) {
if (!(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, ey-m_YDifference + y);
else if (ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, ey-m_YDifference + y);
}
else if (!(ey + y > 0) && ey + y < h && !(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, 0-m_YDifference);
else if (!(ey + y > 0) && ey + y < h && ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, 0-m_YDifference);
else if (ey + y > 0 && !(ey + y < h) && !(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, h-m_YDifference);
else if (ey + y > 0 && !(ey + y < h) && ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, h-m_YDifference);
}
}
public void mousePressed(MouseEvent e) {
m_if.toFront();
m_XDifference = e.getX();
m_YDifference = e.getY();
m_dragging = true;
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
}
// custom button class for title bar
class InnerFrameButton extends JButton
{
Dimension m_dim;
public InnerFrameButton(ImageIcon ii) {
super(ii);
m_dim = new Dimension(ii.getIconWidth(), ii.getIconHeight());
setOpaque(false);
setContentAreaFilled(false);
setBorder(null);
}
public Dimension getPreferredSize() {
return m_dim;
}
public Dimension getMinimumSize() {
return m_dim;
}
public Dimension getMaximumSize() {
return m_dim;
}
}
///////////////////////////////////////////////
/////////// Mouse Event Capturing /////////////
///////////////////////////////////////////////
class CapturePanel extends JPanel
{
public CapturePanel() {
MouseInputAdapter mia = new MouseInputAdapter() {};
addMouseListener(mia);
addMouseMotionListener(mia);
}
}
///////////////////////////////////////////////
///////////// GlassPane Selector //////////////
///////////////////////////////////////////////
class GlassCapturePanel extends JPanel
{
public GlassCapturePanel() {
MouseInputAdapter mia = new MouseInputAdapter() {
public void mousePressed(MouseEvent e) {
InnerFrame.this.toFront();
}
};
addMouseListener(mia);
addMouseMotionListener(mia);
setOpaque(false);
}
}
///////////////////////////////////////////////
//////////////// Resizability /////////////////
///////////////////////////////////////////////
public void setBorderColor(Color c) {
m_BorderColor = c;
updateBorderColors();
}
public Color getBorderColor() {
return m_BorderColor;
}
public void setSelectedBorderColor(Color c) {
m_selectedBorderColor = c;
updateBorderColors();
}
public Color getSelectedBorderColor() {
return m_selectedBorderColor;
}
protected void updateBorderColors() {
if (isSelected()) {
m_northResizer.setBackground(m_selectedBorderColor);
m_southResizer.setBackground(m_selectedBorderColor);
m_eastResizer.setBackground(m_selectedBorderColor);
m_westResizer.setBackground(m_selectedBorderColor);
} else {
m_northResizer.setBackground(m_BorderColor);
m_southResizer.setBackground(m_BorderColor);
m_eastResizer.setBackground(m_BorderColor);
m_westResizer.setBackground(m_BorderColor);
}
}
public boolean isResizeable() {
return m_resizeable;
}
public void setResizeable(boolean b) {
if (!b && m_resizeable == true) {
m_northResizer.removeMouseListener(m_northResizer);
m_northResizer.removeMouseMotionListener(m_northResizer);
m_southResizer.removeMouseListener(m_southResizer);
m_southResizer.removeMouseMotionListener(m_southResizer);
m_eastResizer.removeMouseListener(m_eastResizer);
m_eastResizer.removeMouseMotionListener(m_eastResizer);
m_westResizer.removeMouseListener(m_westResizer);
m_westResizer.removeMouseMotionListener(m_westResizer);
}
else if (b && m_resizeable == false) {
m_northResizer.addMouseListener(m_northResizer);
m_northResizer.addMouseMotionListener(m_northResizer);
m_southResizer.addMouseListener(m_southResizer);
m_southResizer.addMouseMotionListener(m_southResizer);
m_eastResizer.addMouseListener(m_eastResizer);
m_eastResizer.addMouseMotionListener(m_eastResizer);
m_westResizer.addMouseListener(m_westResizer);
m_westResizer.addMouseMotionListener(m_westResizer);
}
m_resizeable = b;
}
protected void attachNorthResizeEdge() {
m_northResizer = new NorthResizeEdge(this);
super.add(m_northResizer, BorderLayout.NORTH);
}
protected void attachSouthResizeEdge() {
m_southResizer = new SouthResizeEdge(this);
super.add(m_southResizer, BorderLayout.SOUTH);
}
protected void attachEastResizeEdge() {
m_eastResizer = new EastResizeEdge(this);
super.add(m_eastResizer, BorderLayout.EAST);
}
protected void attachWestResizeEdge() {
m_westResizer = new WestResizeEdge(this);
super.add(m_westResizer, BorderLayout.WEST);
}
class EastResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected EastResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth() + e.getX() >= MIN_WIDTH)
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
m_resizeComponent.getWidth() + e.getX(),
m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.E_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
}
}
class WestResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int m_dragX, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected WestResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth()-
(e.getX()-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(
m_resizeComponent.getX() + (e.getX()-m_dragX),
m_resizeComponent.getY(),
m_resizeComponent.getWidth()-(e.getX()-m_dragX),
m_resizeComponent.getHeight());
else
if (m_resizeComponent.getX() + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.W_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_rightX = m_resizeComponent.getX() +
m_resizeComponent.getWidth();
m_dragging = true;
m_dragX = e.getX();
}
}
class NorthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int NORTH = 0;
private static final int NORTHEAST = 1;
private static final int NORTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX, m_lowerY;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected NorthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.N_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case NORTH:
if (h-(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y + (ey-m_dragY),
w, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w, MIN_HEIGHT);
break;
case NORTHEAST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w + (ex-(getWidth()-CORNER)),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w + (ex-(getWidth()-CORNER)),
MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
case NORTHWEST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
y + (ey-m_dragY), w-(ex-m_dragX),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w, h-(ey-m_dragY));
}
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
m_lowerY-MIN_HEIGHT, w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
m_lowerY = m_resizeComponent.getY()
+ m_resizeComponent.getHeight();
if (e.getX() < CORNER) {
m_mode = NORTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = NORTHEAST;
}
else {
m_mode = NORTH;
}
}
}
class SouthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int SOUTH = 0;
private static final int SOUTHEAST = 1;
private static final int SOUTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected SouthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.S_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case SOUTH:
if (h+(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y, w, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w, MIN_HEIGHT);
break;
case SOUTHEAST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x, y,
MIN_WIDTH, h+(ey-m_dragY));
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
y, MIN_WIDTH, MIN_HEIGHT);
break;
case SOUTHWEST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH, y,
MIN_WIDTH, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w,
h+(ey-m_dragY));
}
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
if (e.getX() < CORNER) {
m_mode = SOUTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = SOUTHEAST;
}
else {
m_mode = SOUTH;
}
}
}
} class MDIPane extends JLayeredPane implements ComponentListener {
public MDIPane() {
addComponentListener(this);
setOpaque(true);
// default background color
setBackground(new Color(244,232,152));
}
public void componentHidden(ComponentEvent e) {}
public void componentMoved(ComponentEvent e) {}
public void componentShown(ComponentEvent e) {}
public void componentResized(ComponentEvent e) { lineup(); }
public void lineup() {
int frameHeight, frameWidth, currentX, currentY, lheight, lwidth;
lwidth = getWidth();
lheight = getHeight();
currentX = 0;
currentY = lheight;
Component[] components = getComponents();
for (int i=components.length-1; i>-1; i--) {
if (components[i] instanceof InnerFrame) {
InnerFrame tempFrame = (InnerFrame) components[i];
frameHeight = tempFrame.getHeight();
frameWidth = tempFrame.getWidth();
if (tempFrame.isMaximized()) {
tempFrame.setBounds(0,0,getWidth(),getHeight());
tempFrame.validate();
tempFrame.repaint();
}
else if (tempFrame.isIconified()) {
if (currentX+frameWidth > lwidth) {
currentX = 0;
currentY -= frameHeight;
}
tempFrame.setLocation(currentX, currentY-frameHeight);
currentX += frameWidth;
}
}
}
}
}
</source>
LayeredPane Demo 4: Custom MDI
<source lang="java">
import javax.swing.border.*; import javax.swing.event.*; import java.io.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class LayeredPaneDemo4 extends JFrame {
public LayeredPaneDemo4()
{
super("Custom MDI: Part V");
setSize(570,400);
getContentPane().setBackground(new Color(244,232,152));
setLayeredPane(new MDIPane());
ImageIcon ii = new ImageIcon("earth.jpg");
InnerFrame[] frames = new InnerFrame[5];
for(int i=0; i<5; i++)
{
frames[i] = new InnerFrame("InnerFrame " + i);
frames[i].setBounds(50+i*20, 50+i*20, 200, 200);
frames[i].getContentPane().add(
new JScrollPane(new JLabel(ii)));
getLayeredPane().add(frames[i]);
}
WindowListener l = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
Dimension dim = getToolkit().getScreenSize();
setLocation(dim.width/2-getWidth()/2,
dim.height/2-getHeight()/2);
ImageIcon image = new ImageIcon("spiral.gif");
setIconImage(image.getImage());
addWindowListener(l);
setVisible(true);
}
public static void main(String[] args)
{
new LayeredPaneDemo4();
}
}
class MDIPane extends JLayeredPane implements ComponentListener {
public MDIPane() {
addComponentListener(this);
setOpaque(true);
// default background color
setBackground(new Color(244,232,152));
}
public void componentHidden(ComponentEvent e) {}
public void componentMoved(ComponentEvent e) {}
public void componentShown(ComponentEvent e) {}
public void componentResized(ComponentEvent e) { lineup(); }
public void lineup() {
int frameHeight, frameWidth, currentX, currentY, lheight, lwidth;
lwidth = getWidth();
lheight = getHeight();
currentX = 0;
currentY = lheight;
Component[] components = getComponents();
for (int i=components.length-1; i>-1; i--) {
if (components[i] instanceof InnerFrame) {
InnerFrame tempFrame = (InnerFrame) components[i];
frameHeight = tempFrame.getHeight();
frameWidth = tempFrame.getWidth();
if (tempFrame.isMaximized()) {
tempFrame.setBounds(0,0,getWidth(),getHeight());
tempFrame.validate();
tempFrame.repaint();
}
else if (tempFrame.isIconified()) {
if (currentX+frameWidth > lwidth) {
currentX = 0;
currentY -= frameHeight;
}
tempFrame.setLocation(currentX, currentY-frameHeight);
currentX += frameWidth;
}
}
}
}
} 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() {
return m_selectedTitleBarBackground;
}
protected void updateTitleBarColors() {
if (isSelected())
m_titlePanel.setBackground(m_selectedTitleBarBackground);
else
m_titlePanel.setBackground(m_titleBarBackground);
}
public void setFrameIcon(ImageIcon fi) {
m_frameIcon = fi;
if (fi != null) {
if (m_frameIcon.getIconHeight() > TITLE_BAR_HEIGHT)
setTitleBarHeight(m_frameIcon.getIconHeight() + 2*FRAME_ICON_PADDING);
m_iconLabel.setIcon(m_frameIcon);
}
else setTitleBarHeight(TITLE_BAR_HEIGHT);
revalidate();
}
public ImageIcon getFrameIcon() {
return m_frameIcon;
}
public void setTitle(String s) {
m_title = s;
m_titleLabel.setText(s);
m_titlePanel.repaint();
}
public String getTitle() {
return m_title;
}
public void setTitleBarHeight(int h) {
m_titleBarHeight = h;
}
public int getTitleBarHeight() {
return m_titleBarHeight;
}
public boolean isDraggable() {
return m_draggable;
}
private void setDraggable(boolean b) {
m_draggable = b;
}
// create the title bar: m_titlePanel
protected void createTitleBar() {
m_titlePanel = new JPanel() {
public Dimension getPreferredSize() {
return new Dimension(InnerFrame.this.getWidth(),
m_titleBarHeight);
}
};
m_titlePanel.setLayout(new BorderLayout());
m_titlePanel.setOpaque(true);
m_titlePanel.setBackground(m_titleBarBackground);
m_titleLabel = new JLabel();
m_titleLabel.setForeground(m_titleBarForeground);
m_close = new InnerFrameButton(CLOSE_BUTTON_ICON);
m_close.setPressedIcon(PRESS_CLOSE_BUTTON_ICON);
m_close.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.close();
}
});
m_maximize = new InnerFrameButton(MAXIMIZE_BUTTON_ICON);
m_maximize.setPressedIcon(PRESS_MAXIMIZE_BUTTON_ICON);
m_maximize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setMaximized(!InnerFrame.this.isMaximized());
}
});
m_iconize = new InnerFrameButton(ICONIZE_BUTTON_ICON);
m_iconize.setPressedIcon(PRESS_ICONIZE_BUTTON_ICON);
m_iconize.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
InnerFrame.this.setIconified(!InnerFrame.this.isIconified());
}
});
m_buttonWrapperPanel = new JPanel();
m_buttonWrapperPanel.setOpaque(false);
m_buttonPanel = new JPanel(new GridLayout(1,3));
m_buttonPanel.setOpaque(false);
m_buttonPanel.add(m_iconize);
m_buttonPanel.add(m_maximize);
m_buttonPanel.add(m_close);
m_buttonPanel.setAlignmentX(0.5f);
m_buttonPanel.setAlignmentY(0.5f);
m_buttonWrapperPanel.add(m_buttonPanel);
m_iconLabel = new JLabel();
m_iconLabel.setBorder(new EmptyBorder(
FRAME_ICON_PADDING, FRAME_ICON_PADDING,
FRAME_ICON_PADDING, FRAME_ICON_PADDING));
if (m_frameIcon != null)
m_iconLabel.setIcon(m_frameIcon);
m_titlePanel.add(m_titleLabel, BorderLayout.CENTER);
m_titlePanel.add(m_buttonWrapperPanel, BorderLayout.EAST);
m_titlePanel.add(m_iconLabel, BorderLayout.WEST);
InnerFrameTitleBarMouseAdapter iftbma =
new InnerFrameTitleBarMouseAdapter(this);
m_titlePanel.addMouseListener(iftbma);
m_titlePanel.addMouseMotionListener(iftbma);
}
// title bar mouse adapter for frame dragging
class InnerFrameTitleBarMouseAdapter
extends MouseInputAdapter
{
InnerFrame m_if;
int m_XDifference, m_YDifference;
boolean m_dragging;
public InnerFrameTitleBarMouseAdapter(InnerFrame inf) {
m_if = inf;
}
// don"t allow dragging outside of parent
public void mouseDragged(MouseEvent e) {
int ex = e.getX();
int ey = e.getY();
int x = m_if.getX();
int y = m_if.getY();
int w = m_if.getParent().getWidth();
int h = m_if.getParent().getHeight();
if (m_dragging & m_if.isDraggable()) {
if ((ey + y > 0 && ey + y < h) && (ex + x > 0 && ex + x < w))
m_if.setLocation(ex-m_XDifference + x, ey-m_YDifference + y);
else if (!(ey + y > 0 && ey + y < h) && (ex + x > 0 && ex + x < w)) {
if (!(ey + y > 0) && ey + y < h)
m_if.setLocation(ex-m_XDifference + x, 0-m_YDifference);
else if (ey + y > 0 && !(ey + y < h))
m_if.setLocation(ex-m_XDifference + x, h-m_YDifference);
}
else if ((ey + y > 0 && ey + y < h) && !(ex + x > 0 && ex + x < w)) {
if (!(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, ey-m_YDifference + y);
else if (ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, ey-m_YDifference + y);
}
else if (!(ey + y > 0) && ey + y < h && !(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, 0-m_YDifference);
else if (!(ey + y > 0) && ey + y < h && ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, 0-m_YDifference);
else if (ey + y > 0 && !(ey + y < h) && !(ex + x > 0) && ex + x < w)
m_if.setLocation(0-m_XDifference, h-m_YDifference);
else if (ey + y > 0 && !(ey + y < h) && ex + x > 0 && !(ex + x < w))
m_if.setLocation(w-m_XDifference, h-m_YDifference);
}
}
public void mousePressed(MouseEvent e) {
m_if.toFront();
m_XDifference = e.getX();
m_YDifference = e.getY();
m_dragging = true;
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
}
// custom button class for title bar
class InnerFrameButton extends JButton
{
Dimension m_dim;
public InnerFrameButton(ImageIcon ii) {
super(ii);
m_dim = new Dimension(ii.getIconWidth(), ii.getIconHeight());
setOpaque(false);
setContentAreaFilled(false);
setBorder(null);
}
public Dimension getPreferredSize() {
return m_dim;
}
public Dimension getMinimumSize() {
return m_dim;
}
public Dimension getMaximumSize() {
return m_dim;
}
}
///////////////////////////////////////////////
/////////// Mouse Event Capturing /////////////
///////////////////////////////////////////////
class CapturePanel extends JPanel
{
public CapturePanel() {
MouseInputAdapter mia = new MouseInputAdapter() {};
addMouseListener(mia);
addMouseMotionListener(mia);
}
}
///////////////////////////////////////////////
///////////// GlassPane Selector //////////////
///////////////////////////////////////////////
class GlassCapturePanel extends JPanel
{
public GlassCapturePanel() {
MouseInputAdapter mia = new MouseInputAdapter() {
public void mousePressed(MouseEvent e) {
InnerFrame.this.toFront();
}
};
addMouseListener(mia);
addMouseMotionListener(mia);
setOpaque(false);
}
}
///////////////////////////////////////////////
//////////////// Resizability /////////////////
///////////////////////////////////////////////
public void setBorderColor(Color c) {
m_BorderColor = c;
updateBorderColors();
}
public Color getBorderColor() {
return m_BorderColor;
}
public void setSelectedBorderColor(Color c) {
m_selectedBorderColor = c;
updateBorderColors();
}
public Color getSelectedBorderColor() {
return m_selectedBorderColor;
}
protected void updateBorderColors() {
if (isSelected()) {
m_northResizer.setBackground(m_selectedBorderColor);
m_southResizer.setBackground(m_selectedBorderColor);
m_eastResizer.setBackground(m_selectedBorderColor);
m_westResizer.setBackground(m_selectedBorderColor);
} else {
m_northResizer.setBackground(m_BorderColor);
m_southResizer.setBackground(m_BorderColor);
m_eastResizer.setBackground(m_BorderColor);
m_westResizer.setBackground(m_BorderColor);
}
}
public boolean isResizeable() {
return m_resizeable;
}
public void setResizeable(boolean b) {
if (!b && m_resizeable == true) {
m_northResizer.removeMouseListener(m_northResizer);
m_northResizer.removeMouseMotionListener(m_northResizer);
m_southResizer.removeMouseListener(m_southResizer);
m_southResizer.removeMouseMotionListener(m_southResizer);
m_eastResizer.removeMouseListener(m_eastResizer);
m_eastResizer.removeMouseMotionListener(m_eastResizer);
m_westResizer.removeMouseListener(m_westResizer);
m_westResizer.removeMouseMotionListener(m_westResizer);
}
else if (b && m_resizeable == false) {
m_northResizer.addMouseListener(m_northResizer);
m_northResizer.addMouseMotionListener(m_northResizer);
m_southResizer.addMouseListener(m_southResizer);
m_southResizer.addMouseMotionListener(m_southResizer);
m_eastResizer.addMouseListener(m_eastResizer);
m_eastResizer.addMouseMotionListener(m_eastResizer);
m_westResizer.addMouseListener(m_westResizer);
m_westResizer.addMouseMotionListener(m_westResizer);
}
m_resizeable = b;
}
protected void attachNorthResizeEdge() {
m_northResizer = new NorthResizeEdge(this);
super.add(m_northResizer, BorderLayout.NORTH);
}
protected void attachSouthResizeEdge() {
m_southResizer = new SouthResizeEdge(this);
super.add(m_southResizer, BorderLayout.SOUTH);
}
protected void attachEastResizeEdge() {
m_eastResizer = new EastResizeEdge(this);
super.add(m_eastResizer, BorderLayout.EAST);
}
protected void attachWestResizeEdge() {
m_westResizer = new WestResizeEdge(this);
super.add(m_westResizer, BorderLayout.WEST);
}
class EastResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected EastResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth() + e.getX() >= MIN_WIDTH)
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
m_resizeComponent.getWidth() + e.getX(),
m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.E_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
}
}
class WestResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private int WIDTH = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int m_dragX, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
protected WestResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(WIDTH, m_resizeComponent.getHeight());
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
if (m_resizeComponent.getWidth()-
(e.getX()-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(
m_resizeComponent.getX() + (e.getX()-m_dragX),
m_resizeComponent.getY(),
m_resizeComponent.getWidth()-(e.getX()-m_dragX),
m_resizeComponent.getHeight());
else
if (m_resizeComponent.getX() + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
else
m_resizeComponent.setBounds(m_resizeComponent.getX(),
m_resizeComponent.getY(),
MIN_WIDTH, m_resizeComponent.getHeight());
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.W_RESIZE_CURSOR));
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_rightX = m_resizeComponent.getX() +
m_resizeComponent.getWidth();
m_dragging = true;
m_dragX = e.getX();
}
}
class NorthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int NORTH = 0;
private static final int NORTHEAST = 1;
private static final int NORTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX, m_lowerY;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected NorthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.NE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.N_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case NORTH:
if (h-(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y + (ey-m_dragY),
w, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w, MIN_HEIGHT);
break;
case NORTHEAST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w + (ex-(getWidth()-CORNER)),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, w + (ex-(getWidth()-CORNER)),
MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
case NORTHWEST:
if (h-(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
y + (ey-m_dragY), w-(ex-m_dragX),
h-(ey-m_dragY));
else if (h-(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y + (ey-m_dragY), MIN_WIDTH, h-(ey-m_dragY));
else
m_resizeComponent.setBounds(x,
y + (ey-m_dragY), w, h-(ey-m_dragY));
}
else if (!(h-(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX),
m_lowerY-MIN_HEIGHT, w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
m_lowerY-MIN_HEIGHT, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
m_lowerY = m_resizeComponent.getY()
+ m_resizeComponent.getHeight();
if (e.getX() < CORNER) {
m_mode = NORTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = NORTHEAST;
}
else {
m_mode = NORTH;
}
}
}
class SouthResizeEdge extends JPanel
implements MouseListener, MouseMotionListener {
private static final int SOUTH = 0;
private static final int SOUTHEAST = 1;
private static final int SOUTHWEST = 2;
private int CORNER = 10;
private int HEIGHT = BORDER_THICKNESS;
private int MIN_WIDTH = ICONIZED_WIDTH;
private int MIN_HEIGHT = TITLE_BAR_HEIGHT+(2*HEIGHT);
private int m_width, m_dragX, m_dragY, m_rightX;
private boolean m_dragging;
private JComponent m_resizeComponent;
private int m_mode;
protected SouthResizeEdge(JComponent c) {
m_resizeComponent = c;
setOpaque(true);
setBackground(m_BorderColor);
}
public Dimension getPreferredSize() {
return new Dimension(m_resizeComponent.getWidth(), HEIGHT);
}
public void mouseClicked(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {
if (!m_dragging) {
if (e.getX() < CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SW_RESIZE_CURSOR));
}
else if(e.getX() > getWidth()-CORNER) {
setCursor(Cursor.getPredefinedCursor(
Cursor.SE_RESIZE_CURSOR));
}
else {
setCursor(Cursor.getPredefinedCursor(
Cursor.S_RESIZE_CURSOR));
}
}
}
public void mouseReleased(MouseEvent e) {
m_dragging = false;
}
public void mouseDragged(MouseEvent e) {
int h = m_resizeComponent.getHeight();
int w = m_resizeComponent.getWidth();
int x = m_resizeComponent.getX();
int y = m_resizeComponent.getY();
int ex = e.getX();
int ey = e.getY();
switch (m_mode) {
case SOUTH:
if (h+(ey-m_dragY) >= MIN_HEIGHT)
m_resizeComponent.setBounds(x, y, w, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w, MIN_HEIGHT);
break;
case SOUTHEAST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH))
m_resizeComponent.setBounds(x, y,
MIN_WIDTH, h+(ey-m_dragY));
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w + (ex-(getWidth()-CORNER)) >= MIN_WIDTH)
m_resizeComponent.setBounds(x, y,
w + (ex-(getWidth()-CORNER)), MIN_HEIGHT);
else
m_resizeComponent.setBounds(x,
y, MIN_WIDTH, MIN_HEIGHT);
break;
case SOUTHWEST:
if (h+(ey-m_dragY) >= MIN_HEIGHT
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), h+(ey-m_dragY));
else if (h+(ey-m_dragY) >= MIN_HEIGHT
&& !(w-(ex-m_dragX) >= MIN_WIDTH)) {
if (x + MIN_WIDTH < m_rightX)
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH, y,
MIN_WIDTH, h+(ey-m_dragY));
else
m_resizeComponent.setBounds(x, y, w,
h+(ey-m_dragY));
}
else if (!(h+(ey-m_dragY) >= MIN_HEIGHT)
&& w-(ex-m_dragX) >= MIN_WIDTH)
m_resizeComponent.setBounds(x + (ex-m_dragX), y,
w-(ex-m_dragX), MIN_HEIGHT);
else
m_resizeComponent.setBounds(m_rightX-MIN_WIDTH,
y, MIN_WIDTH, MIN_HEIGHT);
break;
}
m_rightX = x + w;
m_resizeComponent.validate();
}
public void mouseEntered(MouseEvent e) {
mouseMoved(e);
}
public void mouseExited(MouseEvent e) {
if (!m_dragging)
setCursor(Cursor.getPredefinedCursor(
Cursor.DEFAULT_CURSOR));
}
public void mousePressed(MouseEvent e) {
toFront();
m_dragging = true;
m_dragX = e.getX();
m_dragY = e.getY();
if (e.getX() < CORNER) {
m_mode = SOUTHWEST;
}
else if(e.getX() > getWidth()-CORNER) {
m_mode = SOUTHEAST;
}
else {
m_mode = SOUTH;
}
}
}
///////////////////////////////////////////////
/////////////// Serialization /////////////////
///////////////////////////////////////////////
public void writeExternal(ObjectOutput out)
throws IOException
{
out.writeObject(m_titleBarBackground);
out.writeObject(m_titleBarForeground);
out.writeObject(m_BorderColor);
out.writeObject(m_selectedTitleBarBackground);
out.writeObject(m_selectedBorderColor);
out.writeObject(m_title);
out.writeBoolean(m_iconizeable);
out.writeBoolean(m_resizeable);
out.writeBoolean(m_closeable);
out.writeBoolean(m_maximizeable);
out.writeObject(m_frameIcon);
out.writeObject(getBounds());
}
public void readExternal(ObjectInput in)
throws IOException, ClassNotFoundException
{
setTitleBarBackground((Color)in.readObject());
setTitleBarForeground((Color)in.readObject());
setBorderColor((Color)in.readObject());
setSelectedTitleBarBackground((Color)in.readObject());
setSelectedBorderColor((Color)in.readObject());
setTitle((String)in.readObject());
setIconizeable(in.readBoolean());
setResizeable(in.readBoolean());
setCloseable(in.readBoolean());
setMaximizeable(in.readBoolean());
setSelected(false);
setFrameIcon((ImageIcon)in.readObject());
Rectangle r = (Rectangle)in.readObject();
r.x = getX();
r.y = getY();
setBounds(r.x,r.x,r.width,r.height);
}
}
</source>
Layered Panel demo 2
<source lang="java">
import java.awt.Color; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import javax.swing.JButton; import javax.swing.JFrame; public class LayeredPaneDemo extends JFrame {
public LayeredPaneDemo() {
super("");
setSize(570, 400);
getContentPane().setBackground(new Color(244, 232, 152));
getLayeredPane().setOpaque(true);
JButton[] frames = new JButton[5];
for (int i = 0; i < 5; i++) {
frames[i] = new JButton("InnerFrame " + i);
frames[i].setBounds(50 + i * 20, 50 + i * 20, 200, 200);
getLayeredPane().add(frames[i]);
}
WindowListener l = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
addWindowListener(l);
setVisible(true);
}
public static void main(String[] args) {
new LayeredPaneDemo();
}
}
</source>
