llvm-gcc-4.2/libjava/classpath/javax/swing/plaf/metal/MetalComboBoxUI.java - llvm-archive - Git at Google

 /* MetalComboBoxUI.java
    Copyright (C) 2005 Free Software Foundation, Inc.

 This file is part of GNU Classpath.

 GNU Classpath is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.

 GNU Classpath is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with GNU Classpath; see the file COPYING.  If not, write to the
 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 02110-1301 USA.

 Linking this library statically or dynamically with other modules is
 making a combined work based on this library.  Thus, the terms and
 conditions of the GNU General Public License cover the whole
 combination.

 As a special exception, the copyright holders of this library give you
 permission to link this library with independent modules to produce an
 executable, regardless of the license terms of these independent
 modules, and to copy and distribute the resulting executable under
 terms of your choice, provided that you also meet, for each linked
 independent module, the terms and conditions of the license of that
 module.  An independent module is a module which is not derived from
 or based on this library.  If you modify this library, you may extend
 this exception to your version of the library, but you are not
 obligated to do so.  If you do not wish to do so, delete this
 exception statement from your version. */


 package javax.swing.plaf.metal;

 import java.awt.Color;
 import java.awt.Container;
 import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.Insets;
 import java.awt.LayoutManager;
 import java.awt.event.MouseEvent;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;

 import javax.swing.CellRendererPane;
 import javax.swing.ComboBoxEditor;
 import javax.swing.Icon;
 import javax.swing.JButton;
 import javax.swing.JComboBox;
 import javax.swing.JComponent;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicComboBoxUI;
 import javax.swing.plaf.basic.BasicComboPopup;
 import javax.swing.plaf.basic.ComboPopup;


 /**
  * A UI delegate for the {@link JComboBox} component.
  */
 public class MetalComboBoxUI extends BasicComboBoxUI
 {
   /**
    * A layout manager that arranges the editor component (if active) and the
    * button that make up the combo box.
    */
   public class MetalComboBoxLayoutManager
     extends BasicComboBoxUI.ComboBoxLayoutManager
   {
     /**
      * Creates a new instance of the layout manager.
      */
     public MetalComboBoxLayoutManager()
     {
       // Nothing to do here.
     }

     /**
      * Arranges the editor (if visible) and button that comprise the combo
      * box.
      *
      * @param parent  the parent.
      */
     public void layoutContainer(Container parent)
     {
       layoutComboBox(parent, this);
     }

     /**
      * Calls the <code>layoutContainer(Container)</code> method in the super
      * class.
      *
      * @param parent  the container.
      */
     public void superLayout(Container parent)
     {
       super.layoutContainer(parent);
     }
   }

   /**
    * A listener used to handle property changes in the {@link JComboBox}
    * component, to ensure that the UI delegate accurately reflects the current
    * state in the rendering onscreen.
    */
   public class MetalPropertyChangeListener
     extends BasicComboBoxUI.PropertyChangeHandler
   {
     /**
      * Creates a new listener.
      */
     public MetalPropertyChangeListener()
     {
       // Nothing to do here.
     }

     /**
      * Handles a property change event, updating the UI components as
      * appropriate.
      *
      * @param e  the event.
      */
     public void propertyChange(PropertyChangeEvent e)
     {
       super.propertyChange(e);
       String name = e.getPropertyName();
       if (name.equals("editable"))
         editablePropertyChanged(e);
       else if (name.equals("enabled"))
         {
           if (arrowButton instanceof MetalComboBoxButton)
             {
               arrowButton.setFocusable(!comboBox.isEditable()
                                        && comboBox.isEnabled());
               comboBox.repaint();
             }
         }
       else if (name.equals("background"))
         {
           Color c = (Color) e.getNewValue();
           arrowButton.setBackground(c);
           listBox.setBackground(c);
         }
       else if (name.equals("foreground"))
         {
           Color c = (Color) e.getNewValue();
           arrowButton.setForeground(c);
           listBox.setForeground(c);
         }
     }
   }

   /**
    * A popup menu for the combo-box.
    *
    * @see #createPopup()
    *
    * @deprecated 1.4
    */
   public class MetalComboPopup extends BasicComboPopup
   {
     /**
      * Creates a new popup.
      *
      * @param cBox  the combo box.
      */
     public MetalComboPopup(JComboBox cBox)
     {
       super(cBox);
     }

     public void delegateFocus(MouseEvent e)
     {
       super.delegateFocus(e);
     }
   }

   /**
    * Constructs a new instance of MetalComboBoxUI.
    */
   public MetalComboBoxUI()
   {
     super();
   }

   /**
    * Returns an instance of MetalComboBoxUI.
    *
    * @param component the component for which we return an UI instance
    *
    * @return an instance of MetalComboBoxUI
    */
   public static ComponentUI createUI(JComponent component)
   {
     return new MetalComboBoxUI();
   }

   /**
    * Creates an editor for the combo box.
    *
    * @return An editor.
    */
   protected ComboBoxEditor createEditor()
   {
     return new MetalComboBoxEditor.UIResource();
   }

   /**
    * Creates a popup for the combo box.
    *
    * @return A popup.
    */
   protected ComboPopup createPopup()
   {
     return new MetalComboPopup(comboBox);
   }

   /**
    * Creates a new button for use in rendering the JComboBox.
    *
    * @return A button.
    */
   protected JButton createArrowButton()
   {
     JButton button = new MetalComboBoxButton(comboBox, new MetalComboBoxIcon(),
             new CellRendererPane(), listBox);
     button.setMargin(new Insets(0, 1, 1, 3));
     return button;
   }

   /**
    * Creates a new property change listener.
    *
    * @return A new property change listener.
    */
   public PropertyChangeListener createPropertyChangeListener()
   {
     return new MetalPropertyChangeListener();
   }

   public void paint(Graphics g, JComponent c)
   {
     // do nothing, the button and text field are painted elsewhere
   }

   /**
    * Updates the button and text field to reflect a change in the 'editable'
    * property.
    *
    * @param e  the event.
    *
    * @deprecated 1.4
    */
   protected void editablePropertyChanged(PropertyChangeEvent e)
   {
     if (arrowButton instanceof MetalComboBoxButton)
       {
         MetalComboBoxButton b = (MetalComboBoxButton) arrowButton;
         b.setIconOnly(comboBox.isEditable());
         b.setFocusable(!comboBox.isEditable() && comboBox.isEnabled());
         comboBox.repaint();
       }
   }

   /**
    * Creates a new layout manager for the UI delegate.
    *
    * @return A new layout manager.
    */
   protected LayoutManager createLayoutManager()
   {
     return new MetalComboBoxLayoutManager();
   }

   /**
    * Not used in Classpath.
    *
    * @deprecated 1.4
    */
   protected void removeListeners()
   {
     // no longer used in JDK 1.4
   }

   /**
    * Returns the minimum size for the combo.
    *
    * @param c  the component
    *
    * @return The minimum size for the combo box.
    */
   public Dimension getMinimumSize(JComponent c)
   {
     if (!isMinimumSizeDirty)
       return new Dimension(cachedMinimumSize);

     Dimension d;
     if (!comboBox.isEditable() && arrowButton != null
         && arrowButton instanceof MetalComboBoxButton)
       {
         MetalComboBoxButton b = (MetalComboBoxButton) arrowButton;
         d = getDisplaySize();
         Insets insets = b.getInsets();
         Insets arrowInsets = b.getInsets();
         Insets comboInsets = comboBox.getInsets();
         Icon icon = b.getComboIcon();
         d.width += comboInsets.left + comboInsets.right;
         d.width += arrowInsets.left + arrowInsets.right;
         d.width += arrowInsets.right + icon.getIconWidth();
         d.height += comboInsets.top + comboInsets.bottom;
         d.height += arrowInsets.top + arrowInsets.bottom;
       }
     else if (comboBox.isEditable() && arrowButton != null && editor != null)
       {
         d = super.getMinimumSize(c);
         Insets arrowMargin = arrowButton.getMargin();
         d.height += arrowMargin.top + arrowMargin.bottom;
         d.width += arrowMargin.left + arrowMargin.right;
       }
     else
       {
         d = super.getMinimumSize(c);
       }
     cachedMinimumSize.setSize(d.width, d.height);
     isMinimumSizeDirty = false;
     return new Dimension(cachedMinimumSize);
   }

   /**
    * Configures the editor for this combo box.
    */
   public void configureEditor()
   {
     super.configureEditor();
     if (popupKeyListener != null)
       editor.removeKeyListener(popupKeyListener);
     if (focusListener != null)
       editor.addFocusListener(focusListener);
   }

   /**
    * Unconfigures the editor for this combo box.
    */
   public void unconfigureEditor()
   {
     super.unconfigureEditor();
     if (focusListener != null)
       editor.removeFocusListener(focusListener);
   }

   /**
    * Lays out the ComboBox
    */
   public void layoutComboBox(Container parent,
                              MetalComboBoxUI.MetalComboBoxLayoutManager manager)
   {
     if (comboBox.isEditable())
       manager.superLayout(parent);
     else if (arrowButton != null)
       {
         Insets comboInsets = comboBox.getInsets();
         int width = comboBox.getWidth();
         int height = comboBox.getHeight();
         arrowButton.setBounds(comboInsets.left, comboInsets.top,
                               width - (comboInsets.left + comboInsets.right),
                               height - (comboInsets.top + comboInsets.bottom));
       }
   }
 }
	/* MetalComboBoxUI.java
	Copyright (C) 2005 Free Software Foundation, Inc.

	This file is part of GNU Classpath.

	GNU Classpath is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	GNU Classpath is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with GNU Classpath; see the file COPYING. If not, write to the
	Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	02110-1301 USA.

	Linking this library statically or dynamically with other modules is
	making a combined work based on this library. Thus, the terms and
	conditions of the GNU General Public License cover the whole
	combination.

	As a special exception, the copyright holders of this library give you
	permission to link this library with independent modules to produce an
	executable, regardless of the license terms of these independent
	modules, and to copy and distribute the resulting executable under
	terms of your choice, provided that you also meet, for each linked
	independent module, the terms and conditions of the license of that
	module. An independent module is a module which is not derived from
	or based on this library. If you modify this library, you may extend
	this exception to your version of the library, but you are not
	obligated to do so. If you do not wish to do so, delete this
	exception statement from your version. */


	package javax.swing.plaf.metal;

	import java.awt.Color;
	import java.awt.Container;
	import java.awt.Dimension;
	import java.awt.Graphics;
	import java.awt.Insets;
	import java.awt.LayoutManager;
	import java.awt.event.MouseEvent;
	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;

	import javax.swing.CellRendererPane;
	import javax.swing.ComboBoxEditor;
	import javax.swing.Icon;
	import javax.swing.JButton;
	import javax.swing.JComboBox;
	import javax.swing.JComponent;
	import javax.swing.plaf.ComponentUI;
	import javax.swing.plaf.basic.BasicComboBoxUI;
	import javax.swing.plaf.basic.BasicComboPopup;
	import javax.swing.plaf.basic.ComboPopup;


	/**
	* A UI delegate for the {@link JComboBox} component.
	*/
	public class MetalComboBoxUI extends BasicComboBoxUI
	{
	/**
	* A layout manager that arranges the editor component (if active) and the
	* button that make up the combo box.
	*/
	public class MetalComboBoxLayoutManager
	extends BasicComboBoxUI.ComboBoxLayoutManager
	{
	/**
	* Creates a new instance of the layout manager.
	*/
	public MetalComboBoxLayoutManager()
	{
	// Nothing to do here.
	}

	/**
	* Arranges the editor (if visible) and button that comprise the combo
	* box.
	*
	* @param parent the parent.
	*/
	public void layoutContainer(Container parent)
	{
	layoutComboBox(parent, this);
	}

	/**
	* Calls the <code>layoutContainer(Container)</code> method in the super
	* class.
	*
	* @param parent the container.
	*/
	public void superLayout(Container parent)
	{
	super.layoutContainer(parent);
	}
	}

	/**
	* A listener used to handle property changes in the {@link JComboBox}
	* component, to ensure that the UI delegate accurately reflects the current
	* state in the rendering onscreen.
	*/
	public class MetalPropertyChangeListener
	extends BasicComboBoxUI.PropertyChangeHandler
	{
	/**
	* Creates a new listener.
	*/
	public MetalPropertyChangeListener()
	{
	// Nothing to do here.
	}

	/**
	* Handles a property change event, updating the UI components as
	* appropriate.
	*
	* @param e the event.
	*/
	public void propertyChange(PropertyChangeEvent e)
	{
	super.propertyChange(e);
	String name = e.getPropertyName();
	if (name.equals("editable"))
	editablePropertyChanged(e);
	else if (name.equals("enabled"))
	{
	if (arrowButton instanceof MetalComboBoxButton)
	{
	arrowButton.setFocusable(!comboBox.isEditable()
	&& comboBox.isEnabled());
	comboBox.repaint();
	}
	}
	else if (name.equals("background"))
	{
	Color c = (Color) e.getNewValue();
	arrowButton.setBackground(c);
	listBox.setBackground(c);
	}
	else if (name.equals("foreground"))
	{
	Color c = (Color) e.getNewValue();
	arrowButton.setForeground(c);
	listBox.setForeground(c);
	}
	}
	}

	/**
	* A popup menu for the combo-box.
	*
	* @see #createPopup()
	*
	* @deprecated 1.4
	*/
	public class MetalComboPopup extends BasicComboPopup
	{
	/**
	* Creates a new popup.
	*
	* @param cBox the combo box.
	*/
	public MetalComboPopup(JComboBox cBox)
	{
	super(cBox);
	}

	public void delegateFocus(MouseEvent e)
	{
	super.delegateFocus(e);
	}
	}

	/**
	* Constructs a new instance of MetalComboBoxUI.
	*/
	public MetalComboBoxUI()
	{
	super();
	}

	/**
	* Returns an instance of MetalComboBoxUI.
	*
	* @param component the component for which we return an UI instance
	*
	* @return an instance of MetalComboBoxUI
	*/
	public static ComponentUI createUI(JComponent component)
	{
	return new MetalComboBoxUI();
	}

	/**
	* Creates an editor for the combo box.
	*
	* @return An editor.
	*/
	protected ComboBoxEditor createEditor()
	{
	return new MetalComboBoxEditor.UIResource();
	}

	/**
	* Creates a popup for the combo box.
	*
	* @return A popup.
	*/
	protected ComboPopup createPopup()
	{
	return new MetalComboPopup(comboBox);
	}

	/**
	* Creates a new button for use in rendering the JComboBox.
	*
	* @return A button.
	*/
	protected JButton createArrowButton()
	{
	JButton button = new MetalComboBoxButton(comboBox, new MetalComboBoxIcon(),
	new CellRendererPane(), listBox);
	button.setMargin(new Insets(0, 1, 1, 3));
	return button;
	}

	/**
	* Creates a new property change listener.
	*
	* @return A new property change listener.
	*/
	public PropertyChangeListener createPropertyChangeListener()
	{
	return new MetalPropertyChangeListener();
	}

	public void paint(Graphics g, JComponent c)
	{
	// do nothing, the button and text field are painted elsewhere
	}

	/**
	* Updates the button and text field to reflect a change in the 'editable'
	* property.
	*
	* @param e the event.
	*
	* @deprecated 1.4
	*/
	protected void editablePropertyChanged(PropertyChangeEvent e)
	{
	if (arrowButton instanceof MetalComboBoxButton)
	{
	MetalComboBoxButton b = (MetalComboBoxButton) arrowButton;
	b.setIconOnly(comboBox.isEditable());
	b.setFocusable(!comboBox.isEditable() && comboBox.isEnabled());
	comboBox.repaint();
	}
	}

	/**
	* Creates a new layout manager for the UI delegate.
	*
	* @return A new layout manager.
	*/
	protected LayoutManager createLayoutManager()
	{
	return new MetalComboBoxLayoutManager();
	}

	/**
	* Not used in Classpath.
	*
	* @deprecated 1.4
	*/
	protected void removeListeners()
	{
	// no longer used in JDK 1.4
	}

	/**
	* Returns the minimum size for the combo.
	*
	* @param c the component
	*
	* @return The minimum size for the combo box.
	*/
	public Dimension getMinimumSize(JComponent c)
	{
	if (!isMinimumSizeDirty)
	return new Dimension(cachedMinimumSize);

	Dimension d;
	if (!comboBox.isEditable() && arrowButton != null
	&& arrowButton instanceof MetalComboBoxButton)
	{
	MetalComboBoxButton b = (MetalComboBoxButton) arrowButton;
	d = getDisplaySize();
	Insets insets = b.getInsets();
	Insets arrowInsets = b.getInsets();
	Insets comboInsets = comboBox.getInsets();
	Icon icon = b.getComboIcon();
	d.width += comboInsets.left + comboInsets.right;
	d.width += arrowInsets.left + arrowInsets.right;
	d.width += arrowInsets.right + icon.getIconWidth();
	d.height += comboInsets.top + comboInsets.bottom;
	d.height += arrowInsets.top + arrowInsets.bottom;
	}
	else if (comboBox.isEditable() && arrowButton != null && editor != null)
	{
	d = super.getMinimumSize(c);
	Insets arrowMargin = arrowButton.getMargin();
	d.height += arrowMargin.top + arrowMargin.bottom;
	d.width += arrowMargin.left + arrowMargin.right;
	}
	else
	{
	d = super.getMinimumSize(c);
	}
	cachedMinimumSize.setSize(d.width, d.height);
	isMinimumSizeDirty = false;
	return new Dimension(cachedMinimumSize);
	}

	/**
	* Configures the editor for this combo box.
	*/
	public void configureEditor()
	{
	super.configureEditor();
	if (popupKeyListener != null)
	editor.removeKeyListener(popupKeyListener);
	if (focusListener != null)
	editor.addFocusListener(focusListener);
	}

	/**
	* Unconfigures the editor for this combo box.
	*/
	public void unconfigureEditor()
	{
	super.unconfigureEditor();
	if (focusListener != null)
	editor.removeFocusListener(focusListener);
	}

	/**
	* Lays out the ComboBox
	*/
	public void layoutComboBox(Container parent,
	MetalComboBoxUI.MetalComboBoxLayoutManager manager)
	{
	if (comboBox.isEditable())
	manager.superLayout(parent);
	else if (arrowButton != null)
	{
	Insets comboInsets = comboBox.getInsets();
	int width = comboBox.getWidth();
	int height = comboBox.getHeight();
	arrowButton.setBounds(comboInsets.left, comboInsets.top,
	width - (comboInsets.left + comboInsets.right),
	height - (comboInsets.top + comboInsets.bottom));
	}
	}
	}