1. /*

  2.  * @(#)MotifDesktopIconUI.java	1.24 04/04/15

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

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

  9. 

  10. import com.sun.java.swing.SwingUtilities2;

  11. import java.awt.*;

  12. import java.awt.event.*;

  13. import javax.swing.*;

  14. import javax.swing.border.*;

  15. import javax.swing.plaf.*;

  16. import javax.swing.plaf.basic.*;

  17. import java.beans.*;

  18. import java.util.EventListener;

  19. import java.io.Serializable;

  20. 

  21. 

  22. /**

  23.  * Motif rendition of the component.

  24.  *

  25.  * @version 1.24 04/15/04

  26.  * @author Thomas Ball

  27.  * @author Rich Schiavi

  28.  */

  29. public class MotifDesktopIconUI extends BasicDesktopIconUI

  30. {

  31.     protected DesktopIconActionListener desktopIconActionListener;

  32.     protected DesktopIconMouseListener  desktopIconMouseListener;

  33. 

  34.     protected Icon       defaultIcon;

  35.     protected IconButton iconButton;

  36.     protected IconLabel  iconLabel;

  37. 

  38.     // This is only used for its system menu, but we need a reference to it so

  39.     // we can remove its listeners.

  40.     private MotifInternalFrameTitlePane sysMenuTitlePane;

  41. 

  42.     JPopupMenu systemMenu;

  43.     EventListener mml;

  44. 

  45.     final static int LABEL_HEIGHT = 18;

  46.     final static int LABEL_DIVIDER = 4;    // padding between icon and label

  47. 

  48.     final static Font defaultTitleFont = new Font("SansSerif", Font.PLAIN, 12);

  49. 

  50.     public static ComponentUI createUI(JComponent c)    {

  51.         return new MotifDesktopIconUI();

  52.     }

  53. 

  54.     public MotifDesktopIconUI() {

  55.     }

  56. 

  57.     protected void installDefaults(){

  58. 	super.installDefaults();

  59. 	setDefaultIcon(UIManager.getIcon("DesktopIcon.icon"));

  60. 	iconButton = createIconButton(defaultIcon);

  61.         // An underhanded way of creating a system popup menu.

  62.         sysMenuTitlePane =  new MotifInternalFrameTitlePane(frame);

  63.         systemMenu = sysMenuTitlePane.getSystemMenu();

  64. 

  65.         MotifBorders.FrameBorder border = new MotifBorders.FrameBorder(desktopIcon);

  66. 	desktopIcon.setLayout(new BorderLayout());

  67.         iconButton.setBorder(border);

  68. 	desktopIcon.add(iconButton, BorderLayout.CENTER);

  69.         iconLabel = createIconLabel(frame);

  70.         iconLabel.setBorder(border);

  71.         desktopIcon.add(iconLabel, BorderLayout.SOUTH);

  72.         desktopIcon.setSize(desktopIcon.getPreferredSize());

  73.         desktopIcon.validate();

  74. 	JLayeredPane.putLayer(desktopIcon, JLayeredPane.getLayer(frame));

  75.     }

  76. 

  77.     protected void installComponents(){

  78.     }

  79. 

  80.     protected void uninstallComponents(){

  81.     }

  82.     

  83.     protected void installListeners(){

  84. 	super.installListeners();

  85. 	desktopIconActionListener = createDesktopIconActionListener();

  86. 	desktopIconMouseListener = createDesktopIconMouseListener();

  87. 	iconButton.addActionListener(desktopIconActionListener);

  88. 	iconButton.addMouseListener(desktopIconMouseListener);

  89.     }

  90. 

  91.     JInternalFrame.JDesktopIcon getDesktopIcon(){

  92.       return desktopIcon;

  93.     }

  94. 

  95.     void setDesktopIcon(JInternalFrame.JDesktopIcon d){

  96.       desktopIcon = d;

  97.     }

  98. 

  99.     JInternalFrame getFrame(){

  100.       return frame;

  101.     }

  102.   

  103.     void setFrame(JInternalFrame f){

  104.       frame = f ;

  105.     }

  106. 

  107.     protected void showSystemMenu(){

  108.       systemMenu.show(iconButton, 0, getDesktopIcon().getHeight());

  109.     }

  110.     

  111.     protected void hideSystemMenu(){

  112.       systemMenu.setVisible(false);

  113.     }

  114. 

  115.     protected IconLabel createIconLabel(JInternalFrame frame){

  116. 	return new IconLabel(frame);

  117.     }

  118.     

  119.     protected IconButton createIconButton(Icon i){

  120. 	return new IconButton(i);

  121.     }

  122.     

  123.     protected DesktopIconActionListener createDesktopIconActionListener(){

  124. 	return new DesktopIconActionListener();

  125.     }

  126. 

  127.     protected DesktopIconMouseListener createDesktopIconMouseListener(){

  128. 	return new DesktopIconMouseListener();

  129.     }

  130.     

  131.     protected void uninstallDefaults(){

  132. 	super.uninstallDefaults();

  133. 	desktopIcon.setLayout(null);

  134. 	desktopIcon.remove(iconButton);

  135. 	desktopIcon.remove(iconLabel);

  136.     }

  137. 	

  138.     protected void uninstallListeners(){

  139.         super.uninstallListeners();

  140.         iconButton.removeActionListener(desktopIconActionListener);

  141.         iconButton.removeMouseListener(desktopIconMouseListener);

  142.         sysMenuTitlePane.uninstallListeners();

  143.     }

  144. 

  145.     public Dimension getMinimumSize(JComponent c) {

  146.         JInternalFrame iframe = desktopIcon.getInternalFrame();

  147. 	

  148.         int w = defaultIcon.getIconWidth();

  149.         int h = defaultIcon.getIconHeight() + LABEL_HEIGHT + LABEL_DIVIDER;

  150. 

  151. 	Border border = iframe.getBorder();

  152. 	if(border != null) {

  153. 	    w += border.getBorderInsets(iframe).left + 

  154.                 border.getBorderInsets(iframe).right;

  155. 	    h += border.getBorderInsets(iframe).bottom + 

  156.                 border.getBorderInsets(iframe).top;

  157.         }

  158. 

  159. 	return new Dimension(w, h);

  160.     }

  161. 

  162.     public Dimension getPreferredSize(JComponent c) {

  163.         return getMinimumSize(c);

  164.     }

  165. 

  166.     public Dimension getMaximumSize(JComponent c){

  167.         return getMinimumSize(c);

  168.     }

  169. 

  170.     /**

  171.       * Returns the default desktop icon.

  172.       */

  173.     public Icon getDefaultIcon() {

  174. 	return defaultIcon;

  175.     }

  176. 

  177.     /**

  178.       * Sets the icon used as the default desktop icon.

  179.       */

  180.     public void setDefaultIcon(Icon newIcon) {

  181. 	defaultIcon = newIcon;

  182.     }

  183. 

  184.     protected class IconLabel extends JPanel {

  185. 	JInternalFrame frame;

  186. 

  187.         IconLabel(JInternalFrame f) {

  188.             super();

  189. 	    this.frame = f;

  190.             setFont(defaultTitleFont);

  191. 

  192.             // Forward mouse events to titlebar for moves.

  193.             addMouseMotionListener(new MouseMotionListener() {

  194.                 public void mouseDragged(MouseEvent e) {

  195.                     forwardEventToParent(e);

  196.                 }

  197.                 public void mouseMoved(MouseEvent e) {

  198.                     forwardEventToParent(e);

  199.                 }

  200.             });

  201.             addMouseListener(new MouseListener() {

  202.                 public void mouseClicked(MouseEvent e) {

  203.                     forwardEventToParent(e);

  204.                 }

  205.                 public void mousePressed(MouseEvent e) {

  206.                     forwardEventToParent(e);

  207.                 }

  208.                 public void mouseReleased(MouseEvent e) {

  209.                     forwardEventToParent(e);

  210.                 }

  211.                 public void mouseEntered(MouseEvent e) {

  212.                     forwardEventToParent(e);

  213.                 }

  214.                 public void mouseExited(MouseEvent e) {

  215.                     forwardEventToParent(e);

  216.                 }

  217.             });

  218.         }

  219. 

  220.         void forwardEventToParent(MouseEvent e) {

  221.             getParent().dispatchEvent(new MouseEvent(

  222.                 getParent(), e.getID(), e.getWhen(), e.getModifiers(),

  223.                 e.getX(), e.getY(), e.getClickCount(), e.isPopupTrigger()));

  224.         }

  225. 

  226.         public boolean isFocusTraversable() { 

  227.             return false; 

  228.         }

  229. 

  230.         public Dimension getMinimumSize() {

  231.             return new Dimension(defaultIcon.getIconWidth() + 1,

  232.                                  LABEL_HEIGHT + LABEL_DIVIDER);

  233.         }

  234. 

  235.         public Dimension getPreferredSize() {

  236.             String title = frame.getTitle();

  237.             FontMetrics fm = frame.getFontMetrics(defaultTitleFont);

  238.             int w = 4;

  239.             if (title != null) {

  240.                 w += SwingUtilities2.stringWidth(frame, fm, title);

  241.             }

  242.             return new Dimension(w, LABEL_HEIGHT + LABEL_DIVIDER);

  243.         }

  244. 

  245.         public void paint(Graphics g) {

  246.             super.paint(g);

  247. 

  248.             // touch-up frame

  249.             int maxX = getWidth() - 1;

  250.             Color shadow = 

  251.                 UIManager.getColor("inactiveCaptionBorder").darker().darker();

  252.             g.setColor(shadow);

  253.             g.setClip(0, 0, getWidth(), getHeight());

  254.             g.drawLine(maxX - 1, 1, maxX - 1, 1);

  255.             g.drawLine(maxX, 0, maxX, 0);

  256. 

  257.             // fill background

  258.             g.setColor(UIManager.getColor("inactiveCaption"));

  259.             g.fillRect(2, 1, maxX - 3, LABEL_HEIGHT + 1);

  260. 

  261.             // draw text -- clipping to truncate text like CDE/Motif

  262.             g.setClip(2, 1, maxX - 4, LABEL_HEIGHT);

  263.             int y = LABEL_HEIGHT - SwingUtilities2.getFontMetrics(frame, g).

  264.                                                    getDescent();

  265.             g.setColor(UIManager.getColor("inactiveCaptionText"));

  266.             String title = frame.getTitle();

  267.             if (title != null) {

  268.                 SwingUtilities2.drawString(frame, g, title, 4, y);

  269.             }

  270.         }

  271.     }

  272. 

  273.     protected class IconButton extends JButton {

  274.         Icon icon;

  275. 

  276.         IconButton(Icon icon) {

  277.             super(icon);

  278.             this.icon = icon;

  279.             // Forward mouse events to titlebar for moves.

  280.             addMouseMotionListener(new MouseMotionListener() {

  281.                 public void mouseDragged(MouseEvent e) {

  282.                     forwardEventToParent(e);

  283.                 }

  284.                 public void mouseMoved(MouseEvent e) {

  285.                     forwardEventToParent(e);

  286.                 }

  287.             });

  288.             addMouseListener(new MouseListener() {

  289.                 public void mouseClicked(MouseEvent e) {

  290.                     forwardEventToParent(e);

  291.                 }

  292.                 public void mousePressed(MouseEvent e) {

  293.                     forwardEventToParent(e);

  294.                 }

  295.                 public void mouseReleased(MouseEvent e) {

  296.                     if (!systemMenu.isShowing()) {

  297.                         forwardEventToParent(e);

  298.                     }

  299.                 }

  300.                 public void mouseEntered(MouseEvent e) {

  301.                     forwardEventToParent(e);

  302.                 }

  303.                 public void mouseExited(MouseEvent e) {

  304.                     forwardEventToParent(e);

  305.                 }

  306.             });

  307.         }

  308. 

  309.         void forwardEventToParent(MouseEvent e) {

  310.             getParent().dispatchEvent(new MouseEvent(

  311.                 getParent(), e.getID(), e.getWhen(), e.getModifiers(),

  312.                 e.getX(), e.getY(), e.getClickCount(), e.isPopupTrigger()));

  313.         }

  314. 

  315.         public boolean isFocusTraversable() { 

  316.             return false; 

  317.         }

  318.     }

  319. 

  320. 

  321.     protected class DesktopIconActionListener implements ActionListener {

  322.         public void actionPerformed(ActionEvent e){

  323. 	    systemMenu.show(iconButton, 0, getDesktopIcon().getHeight());

  324. 	}

  325.     }

  326. 

  327.     protected class DesktopIconMouseListener extends MouseAdapter {

  328. 	// if we drag or move we should deengage the popup

  329.         public void mousePressed(MouseEvent e){

  330. 	    if (e.getClickCount() == 2){

  331. 		try {

  332. 		    getFrame().setIcon(false);

  333. 		} catch (PropertyVetoException e2){ }

  334. 		systemMenu.setVisible(false);

  335. 		/* the mouse release will not get reported correctly,

  336. 		   because the icon will no longer be in the hierarchy;

  337. 		   maybe that should be fixed, but until it is, we need

  338. 		   to do the required cleanup here. */

  339. 	        getFrame().getDesktopPane().getDesktopManager().endDraggingFrame((JComponent)e.getSource());

  340. 	    }

  341. 	}

  342.     }

  343. }