/*
* 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
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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());
}
}
}