ojluni/src/main/java/javax/swing/plaf/synth/SynthMenuItemUI.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code 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
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package javax.swing.plaf.synth;

 import java.awt.*;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import javax.swing.*;
 import javax.swing.plaf.*;
 import javax.swing.plaf.basic.*;
 import sun.swing.MenuItemLayoutHelper;


 /**
  * Provides the Synth L&F UI delegate for
  * {@link javax.swing.JMenuItem}.
  *
  * @author Georges Saab
  * @author David Karlton
  * @author Arnaud Weber
  * @author Fredrik Lagerblad
  * @since 1.7
  */
 public class SynthMenuItemUI extends BasicMenuItemUI implements
                                    PropertyChangeListener, SynthUI {
     private SynthStyle style;
     private SynthStyle accStyle;

     /**
      * Creates a new UI object for the given component.
      *
      * @param c component to create UI object for
      * @return the UI object
      */
     public static ComponentUI createUI(JComponent c) {
         return new SynthMenuItemUI();
     }

     /**
      * @inheritDoc
      */
     @Override
     public void uninstallUI(JComponent c) {
         super.uninstallUI(c);
         // Remove values from the parent's Client Properties.
         JComponent p = MenuItemLayoutHelper.getMenuItemParent((JMenuItem) c);
         if (p != null) {
             p.putClientProperty(
                     SynthMenuItemLayoutHelper.MAX_ACC_OR_ARROW_WIDTH, null);
         }
     }

     /**
      * @inheritDoc
      */
     @Override
     protected void installDefaults() {
         updateStyle(menuItem);
     }

     /**
      * @inheritDoc
      */
     @Override
     protected void installListeners() {
         super.installListeners();
         menuItem.addPropertyChangeListener(this);
     }

     private void updateStyle(JMenuItem mi) {
         SynthContext context = getContext(mi, ENABLED);
         SynthStyle oldStyle = style;

         style = SynthLookAndFeel.updateStyle(context, this);
         if (oldStyle != style) {
             String prefix = getPropertyPrefix();

             Object value = style.get(context, prefix + ".textIconGap");
             if (value != null) {
                 LookAndFeel.installProperty(mi, "iconTextGap", value);
             }
             defaultTextIconGap = mi.getIconTextGap();

             if (menuItem.getMargin() == null ||
                          (menuItem.getMargin() instanceof UIResource)) {
                 Insets insets = (Insets)style.get(context, prefix + ".margin");

                 if (insets == null) {
                     // Some places assume margins are non-null.
                     insets = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS;
                 }
                 menuItem.setMargin(insets);
             }
             acceleratorDelimiter = style.getString(context, prefix +
                                             ".acceleratorDelimiter", "+");

             arrowIcon = style.getIcon(context, prefix + ".arrowIcon");

             checkIcon = style.getIcon(context, prefix + ".checkIcon");
             if (oldStyle != null) {
                 uninstallKeyboardActions();
                 installKeyboardActions();
             }
         }
         context.dispose();

         SynthContext accContext = getContext(mi, Region.MENU_ITEM_ACCELERATOR,
                                              ENABLED);

         accStyle = SynthLookAndFeel.updateStyle(accContext, this);
         accContext.dispose();
     }

     /**
      * @inheritDoc
      */
     @Override
     protected void uninstallDefaults() {
         SynthContext context = getContext(menuItem, ENABLED);
         style.uninstallDefaults(context);
         context.dispose();
         style = null;

         SynthContext accContext = getContext(menuItem,
                                      Region.MENU_ITEM_ACCELERATOR, ENABLED);
         accStyle.uninstallDefaults(accContext);
         accContext.dispose();
         accStyle = null;

         super.uninstallDefaults();
     }

     /**
      * @inheritDoc
      */
     @Override
     protected void uninstallListeners() {
         super.uninstallListeners();
         menuItem.removePropertyChangeListener(this);
     }

     /**
      * @inheritDoc
      */
     @Override
     public SynthContext getContext(JComponent c) {
         return getContext(c, getComponentState(c));
     }

     SynthContext getContext(JComponent c, int state) {
         return SynthContext.getContext(SynthContext.class, c,
                     SynthLookAndFeel.getRegion(c), style, state);
     }

     SynthContext getContext(JComponent c, Region region) {
         return getContext(c, region, getComponentState(c, region));
     }

     private SynthContext getContext(JComponent c, Region region, int state) {
         return SynthContext.getContext(SynthContext.class, c,
                                        region, accStyle, state);
     }

     private int getComponentState(JComponent c) {
         int state;

         if (!c.isEnabled()) {
             state = DISABLED;
         }
         else if (menuItem.isArmed()) {
             state = MOUSE_OVER;
         }
         else {
             state = SynthLookAndFeel.getComponentState(c);
         }
         if (menuItem.isSelected()) {
             state |= SELECTED;
         }
         return state;
     }

     private int getComponentState(JComponent c, Region region) {
         return getComponentState(c);
     }

     /**
      * @inheritDoc
      */
     @Override
     protected Dimension getPreferredMenuItemSize(JComponent c,
                                                      Icon checkIcon,
                                                      Icon arrowIcon,
                                                      int defaultTextIconGap) {
         SynthContext context = getContext(c);
         SynthContext accContext = getContext(c, Region.MENU_ITEM_ACCELERATOR);
         Dimension value = SynthGraphicsUtils.getPreferredMenuItemSize(
                 context, accContext, c, checkIcon, arrowIcon,
                 defaultTextIconGap, acceleratorDelimiter,
                 MenuItemLayoutHelper.useCheckAndArrow(menuItem),
                 getPropertyPrefix());
         context.dispose();
         accContext.dispose();
         return value;
     }


     /**
      * Notifies this UI delegate to repaint the specified component.
      * This method paints the component background, then calls
      * the {@link #paint(SynthContext,Graphics)} method.
      *
      * <p>In general, this method does not need to be overridden by subclasses.
      * All Look and Feel rendering code should reside in the {@code paint} method.
      *
      * @param g the {@code Graphics} object used for painting
      * @param c the component being painted
      * @see #paint(SynthContext,Graphics)
      */
     @Override
     public void update(Graphics g, JComponent c) {
         SynthContext context = getContext(c);

         SynthLookAndFeel.update(context, g);
         paintBackground(context, g, c);
         paint(context, g);
         context.dispose();
     }

     /**
      * Paints the specified component according to the Look and Feel.
      * <p>This method is not used by Synth Look and Feel.
      * Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
      *
      * @param g the {@code Graphics} object used for painting
      * @param c the component being painted
      * @see #paint(SynthContext,Graphics)
      */
     @Override
     public void paint(Graphics g, JComponent c) {
         SynthContext context = getContext(c);

         paint(context, g);
         context.dispose();
     }

     /**
      * Paints the specified component.
      *
      * @param context context for the component being painted
      * @param g the {@code Graphics} object used for painting
      * @see #update(Graphics,JComponent)
      */
     protected void paint(SynthContext context, Graphics g) {
         SynthContext accContext = getContext(menuItem,
                                              Region.MENU_ITEM_ACCELERATOR);

         // Refetch the appropriate check indicator for the current state
         String prefix = getPropertyPrefix();
         Icon checkIcon = style.getIcon(context, prefix + ".checkIcon");
         Icon arrowIcon = style.getIcon(context, prefix + ".arrowIcon");
         SynthGraphicsUtils.paint(context, accContext, g, checkIcon, arrowIcon,
               acceleratorDelimiter, defaultTextIconGap, getPropertyPrefix());
         accContext.dispose();
     }

     void paintBackground(SynthContext context, Graphics g, JComponent c) {
         SynthGraphicsUtils.paintBackground(context, g, c);
     }

     /**
      * @inheritDoc
      */
     @Override
     public void paintBorder(SynthContext context, Graphics g, int x,
                             int y, int w, int h) {
         context.getPainter().paintMenuItemBorder(context, g, x, y, w, h);
     }

     /**
      * @inheritDoc
      */
     @Override
     public void propertyChange(PropertyChangeEvent e) {
         if (SynthLookAndFeel.shouldUpdateStyle(e)) {
             updateStyle((JMenuItem)e.getSource());
         }
     }
 }
	/*
	* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/
	package javax.swing.plaf.synth;

	import java.awt.*;
	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;
	import javax.swing.*;
	import javax.swing.plaf.*;
	import javax.swing.plaf.basic.*;
	import sun.swing.MenuItemLayoutHelper;


	/**
	* Provides the Synth L&F UI delegate for
	* {@link javax.swing.JMenuItem}.
	*
	* @author Georges Saab
	* @author David Karlton
	* @author Arnaud Weber
	* @author Fredrik Lagerblad
	* @since 1.7
	*/
	public class SynthMenuItemUI extends BasicMenuItemUI implements
	PropertyChangeListener, SynthUI {
	private SynthStyle style;
	private SynthStyle accStyle;

	/**
	* Creates a new UI object for the given component.
	*
	* @param c component to create UI object for
	* @return the UI object
	*/
	public static ComponentUI createUI(JComponent c) {
	return new SynthMenuItemUI();
	}

	/**
	* @inheritDoc
	*/
	@Override
	public void uninstallUI(JComponent c) {
	super.uninstallUI(c);
	// Remove values from the parent's Client Properties.
	JComponent p = MenuItemLayoutHelper.getMenuItemParent((JMenuItem) c);
	if (p != null) {
	p.putClientProperty(
	SynthMenuItemLayoutHelper.MAX_ACC_OR_ARROW_WIDTH, null);
	}
	}

	/**
	* @inheritDoc
	*/
	@Override
	protected void installDefaults() {
	updateStyle(menuItem);
	}

	/**
	* @inheritDoc
	*/
	@Override
	protected void installListeners() {
	super.installListeners();
	menuItem.addPropertyChangeListener(this);
	}

	private void updateStyle(JMenuItem mi) {
	SynthContext context = getContext(mi, ENABLED);
	SynthStyle oldStyle = style;

	style = SynthLookAndFeel.updateStyle(context, this);
	if (oldStyle != style) {
	String prefix = getPropertyPrefix();

	Object value = style.get(context, prefix + ".textIconGap");
	if (value != null) {
	LookAndFeel.installProperty(mi, "iconTextGap", value);
	}
	defaultTextIconGap = mi.getIconTextGap();

	if (menuItem.getMargin() == null \|\|
	(menuItem.getMargin() instanceof UIResource)) {
	Insets insets = (Insets)style.get(context, prefix + ".margin");

	if (insets == null) {
	// Some places assume margins are non-null.
	insets = SynthLookAndFeel.EMPTY_UIRESOURCE_INSETS;
	}
	menuItem.setMargin(insets);
	}
	acceleratorDelimiter = style.getString(context, prefix +
	".acceleratorDelimiter", "+");

	arrowIcon = style.getIcon(context, prefix + ".arrowIcon");

	checkIcon = style.getIcon(context, prefix + ".checkIcon");
	if (oldStyle != null) {
	uninstallKeyboardActions();
	installKeyboardActions();
	}
	}
	context.dispose();

	SynthContext accContext = getContext(mi, Region.MENU_ITEM_ACCELERATOR,
	ENABLED);

	accStyle = SynthLookAndFeel.updateStyle(accContext, this);
	accContext.dispose();
	}

	/**
	* @inheritDoc
	*/
	@Override
	protected void uninstallDefaults() {
	SynthContext context = getContext(menuItem, ENABLED);
	style.uninstallDefaults(context);
	context.dispose();
	style = null;

	SynthContext accContext = getContext(menuItem,
	Region.MENU_ITEM_ACCELERATOR, ENABLED);
	accStyle.uninstallDefaults(accContext);
	accContext.dispose();
	accStyle = null;

	super.uninstallDefaults();
	}

	/**
	* @inheritDoc
	*/
	@Override
	protected void uninstallListeners() {
	super.uninstallListeners();
	menuItem.removePropertyChangeListener(this);
	}

	/**
	* @inheritDoc
	*/
	@Override
	public SynthContext getContext(JComponent c) {
	return getContext(c, getComponentState(c));
	}

	SynthContext getContext(JComponent c, int state) {
	return SynthContext.getContext(SynthContext.class, c,
	SynthLookAndFeel.getRegion(c), style, state);
	}

	SynthContext getContext(JComponent c, Region region) {
	return getContext(c, region, getComponentState(c, region));
	}

	private SynthContext getContext(JComponent c, Region region, int state) {
	return SynthContext.getContext(SynthContext.class, c,
	region, accStyle, state);
	}

	private int getComponentState(JComponent c) {
	int state;

	if (!c.isEnabled()) {
	state = DISABLED;
	}
	else if (menuItem.isArmed()) {
	state = MOUSE_OVER;
	}
	else {
	state = SynthLookAndFeel.getComponentState(c);
	}
	if (menuItem.isSelected()) {
	state \|= SELECTED;
	}
	return state;
	}

	private int getComponentState(JComponent c, Region region) {
	return getComponentState(c);
	}

	/**
	* @inheritDoc
	*/
	@Override
	protected Dimension getPreferredMenuItemSize(JComponent c,
	Icon checkIcon,
	Icon arrowIcon,
	int defaultTextIconGap) {
	SynthContext context = getContext(c);
	SynthContext accContext = getContext(c, Region.MENU_ITEM_ACCELERATOR);
	Dimension value = SynthGraphicsUtils.getPreferredMenuItemSize(
	context, accContext, c, checkIcon, arrowIcon,
	defaultTextIconGap, acceleratorDelimiter,
	MenuItemLayoutHelper.useCheckAndArrow(menuItem),
	getPropertyPrefix());
	context.dispose();
	accContext.dispose();
	return value;
	}


	/**
	* Notifies this UI delegate to repaint the specified component.
	* This method paints the component background, then calls
	* the {@link #paint(SynthContext,Graphics)} method.
	*
	* <p>In general, this method does not need to be overridden by subclasses.
	* All Look and Feel rendering code should reside in the {@code paint} method.
	*
	* @param g the {@code Graphics} object used for painting
	* @param c the component being painted
	* @see #paint(SynthContext,Graphics)
	*/
	@Override
	public void update(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	SynthLookAndFeel.update(context, g);
	paintBackground(context, g, c);
	paint(context, g);
	context.dispose();
	}

	/**
	* Paints the specified component according to the Look and Feel.
	* <p>This method is not used by Synth Look and Feel.
	* Painting is handled by the {@link #paint(SynthContext,Graphics)} method.
	*
	* @param g the {@code Graphics} object used for painting
	* @param c the component being painted
	* @see #paint(SynthContext,Graphics)
	*/
	@Override
	public void paint(Graphics g, JComponent c) {
	SynthContext context = getContext(c);

	paint(context, g);
	context.dispose();
	}

	/**
	* Paints the specified component.
	*
	* @param context context for the component being painted
	* @param g the {@code Graphics} object used for painting
	* @see #update(Graphics,JComponent)
	*/
	protected void paint(SynthContext context, Graphics g) {
	SynthContext accContext = getContext(menuItem,
	Region.MENU_ITEM_ACCELERATOR);

	// Refetch the appropriate check indicator for the current state
	String prefix = getPropertyPrefix();
	Icon checkIcon = style.getIcon(context, prefix + ".checkIcon");
	Icon arrowIcon = style.getIcon(context, prefix + ".arrowIcon");
	SynthGraphicsUtils.paint(context, accContext, g, checkIcon, arrowIcon,
	acceleratorDelimiter, defaultTextIconGap, getPropertyPrefix());
	accContext.dispose();
	}

	void paintBackground(SynthContext context, Graphics g, JComponent c) {
	SynthGraphicsUtils.paintBackground(context, g, c);
	}

	/**
	* @inheritDoc
	*/
	@Override
	public void paintBorder(SynthContext context, Graphics g, int x,
	int y, int w, int h) {
	context.getPainter().paintMenuItemBorder(context, g, x, y, w, h);
	}

	/**
	* @inheritDoc
	*/
	@Override
	public void propertyChange(PropertyChangeEvent e) {
	if (SynthLookAndFeel.shouldUpdateStyle(e)) {
	updateStyle((JMenuItem)e.getSource());
	}
	}
	}