/* * 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.Component;import java.awt.Container;import java.awt.Dimension;import java.awt.Graphics;import java.awt.Insets;import java.awt.LayoutManager;import java.awt.Rectangle;import java.beans.PropertyChangeEvent;import java.beans.PropertyChangeListener;import javax.swing.Box;import javax.swing.Icon;import javax.swing.JComponent;import javax.swing.JSeparator;import javax.swing.JToolBar;import javax.swing.plaf.ComponentUI;import javax.swing.plaf.basic.BasicToolBarUI;import sun.swing.plaf.synth.SynthIcon; /** * Provides the Synth L&F UI delegate for * {@link javax.swing.JToolBar}. * * @since 1.7 */public class SynthToolBarUI extends BasicToolBarUI                            implements PropertyChangeListener, SynthUI {    private Icon handleIcon = null;    private Rectangle contentRect = new Rectangle();     private SynthStyle style;    private SynthStyle contentStyle;    private SynthStyle dragWindowStyle;     /**     * 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 SynthToolBarUI();    }     /**     * @inheritDoc     */    @Override    protected void installDefaults() {        toolBar.setLayout(createLayout());        updateStyle(toolBar);    }     /**     * @inheritDoc     */    @Override    protected void installListeners() {        super.installListeners();        toolBar.addPropertyChangeListener(this);    }     /**     * @inheritDoc     */    @Override    protected void uninstallListeners() {        super.uninstallListeners();        toolBar.removePropertyChangeListener(this);    }     private void updateStyle(JToolBar c) {        SynthContext context = getContext(                c, Region.TOOL_BAR_CONTENT, null, ENABLED);        contentStyle = SynthLookAndFeel.updateStyle(context, this);        context.dispose();         context = getContext(c, Region.TOOL_BAR_DRAG_WINDOW, null, ENABLED);        dragWindowStyle = SynthLookAndFeel.updateStyle(context, this);        context.dispose();         context = getContext(c, ENABLED);        SynthStyle oldStyle = style;         style = SynthLookAndFeel.updateStyle(context, this);        if (oldStyle != style) {            handleIcon =                style.getIcon(context, "ToolBar.handleIcon");            if (oldStyle != null) {                uninstallKeyboardActions();                installKeyboardActions();            }        }        context.dispose();    }     /**     * @inheritDoc     */    @Override    protected void uninstallDefaults() {        SynthContext context = getContext(toolBar, ENABLED);         style.uninstallDefaults(context);        context.dispose();        style = null;         handleIcon = null;         context = getContext(toolBar, Region.TOOL_BAR_CONTENT,                             contentStyle, ENABLED);        contentStyle.uninstallDefaults(context);        context.dispose();        contentStyle = null;         context = getContext(toolBar, Region.TOOL_BAR_DRAG_WINDOW,                             dragWindowStyle, ENABLED);        dragWindowStyle.uninstallDefaults(context);        context.dispose();        dragWindowStyle = null;         toolBar.setLayout(null);    }     /**     * @inheritDoc     */    @Override    protected void installComponents() {}     /**     * @inheritDoc     */    @Override    protected void uninstallComponents() {}     /**     * Creates a {@code LayoutManager} to use with the toolbar.     *     * @return a {@code LayoutManager} instance     */    protected LayoutManager createLayout() {        return new SynthToolBarLayoutManager();    }     /**     * @inheritDoc     */    @Override    public SynthContext getContext(JComponent c) {        return getContext(c, SynthLookAndFeel.getComponentState(c));    }     private SynthContext getContext(JComponent c, int state) {        return SynthContext.getContext(SynthContext.class, c,                    SynthLookAndFeel.getRegion(c), style, state);    }     private SynthContext getContext(JComponent c, Region region, SynthStyle style) {        return SynthContext.getContext(SynthContext.class, c, region,                                       style, getComponentState(c, region));    }     private SynthContext getContext(JComponent c, Region region,                                    SynthStyle style, int state) {        return SynthContext.getContext(SynthContext.class, c, region,                                       style, state);    }     private int getComponentState(JComponent c, Region region) {        return SynthLookAndFeel.getComponentState(c);    }     /**     * 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);        context.getPainter().paintToolBarBackground(context,                          g, 0, 0, c.getWidth(), c.getHeight(),                          toolBar.getOrientation());        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();    }     /**     * @inheritDoc     */    @Override    public void paintBorder(SynthContext context, Graphics g, int x,                            int y, int w, int h) {        context.getPainter().paintToolBarBorder(context, g, x, y, w, h,                                                toolBar.getOrientation());    }     /**     * This implementation does nothing, because the {@code rollover}     * property of the {@code JToolBar} class is not used     * in the Synth Look and Feel.     */    @Override    protected void setBorderToNonRollover(Component c) {}     /**     * This implementation does nothing, because the {@code rollover}     * property of the {@code JToolBar} class is not used     * in the Synth Look and Feel.     */    @Override    protected void setBorderToRollover(Component c) {}     /**     * This implementation does nothing, because the {@code rollover}     * property of the {@code JToolBar} class is not used     * in the Synth Look and Feel.     */    @Override    protected void setBorderToNormal(Component c) {}     /**     * Paints the toolbar.     *     * @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) {        if (handleIcon != null && toolBar.isFloatable()) {            int startX = toolBar.getComponentOrientation().isLeftToRight() ?                0 : toolBar.getWidth() -                    SynthIcon.getIconWidth(handleIcon, context);            SynthIcon.paintIcon(handleIcon, context, g, startX, 0,                    SynthIcon.getIconWidth(handleIcon, context),                    SynthIcon.getIconHeight(handleIcon, context));        }         SynthContext subcontext = getContext(                toolBar, Region.TOOL_BAR_CONTENT, contentStyle);        paintContent(subcontext, g, contentRect);        subcontext.dispose();    }     /**     * Paints the toolbar content.     *     * @param context context for the component being painted     * @param g {@code Graphics} object used for painting     * @param bounds bounding box for the toolbar     */    protected void paintContent(SynthContext context, Graphics g,            Rectangle bounds) {        SynthLookAndFeel.updateSubregion(context, g, bounds);        context.getPainter().paintToolBarContentBackground(context, g,                             bounds.x, bounds.y, bounds.width, bounds.height,                             toolBar.getOrientation());        context.getPainter().paintToolBarContentBorder(context, g,                             bounds.x, bounds.y, bounds.width, bounds.height,                             toolBar.getOrientation());    }     /**     * @inheritDoc     */    @Override    protected void paintDragWindow(Graphics g) {        int w = dragWindow.getWidth();        int h = dragWindow.getHeight();        SynthContext context = getContext(                toolBar, Region.TOOL_BAR_DRAG_WINDOW, dragWindowStyle);        SynthLookAndFeel.updateSubregion(                context, g, new Rectangle(0, 0, w, h));        context.getPainter().paintToolBarDragWindowBackground(context,                                                           g, 0, 0, w, h,                                                           dragWindow.getOrientation());        context.getPainter().paintToolBarDragWindowBorder(context, g, 0, 0, w, h,                                                          dragWindow.getOrientation());        context.dispose();    }     //    // PropertyChangeListener    //     /**     * @inheritDoc     */    @Override    public void propertyChange(PropertyChangeEvent e) {        if (SynthLookAndFeel.shouldUpdateStyle(e)) {            updateStyle((JToolBar)e.getSource());        }    }      class SynthToolBarLayoutManager implements LayoutManager {        public void addLayoutComponent(String name, Component comp) {}         public void removeLayoutComponent(Component comp) {}         public Dimension minimumLayoutSize(Container parent) {            JToolBar tb = (JToolBar)parent;            Insets insets = tb.getInsets();            Dimension dim = new Dimension();            SynthContext context = getContext(tb);             if (tb.getOrientation() == JToolBar.HORIZONTAL) {                dim.width = tb.isFloatable() ?                    SynthIcon.getIconWidth(handleIcon, context) : 0;                Dimension compDim;                for (int i = 0; i < tb.getComponentCount(); i++) {                    Component component = tb.getComponent(i);                    if (component.isVisible()) {                        compDim = component.getMinimumSize();                        dim.width += compDim.width;                        dim.height = Math.max(dim.height, compDim.height);                    }                }            } else {                dim.height = tb.isFloatable() ?                    SynthIcon.getIconHeight(handleIcon, context) : 0;                Dimension compDim;                for (int i = 0; i < tb.getComponentCount(); i++) {                    Component component = tb.getComponent(i);                    if (component.isVisible()) {                        compDim = component.getMinimumSize();                        dim.width = Math.max(dim.width, compDim.width);                        dim.height += compDim.height;                    }                }            }            dim.width += insets.left + insets.right;            dim.height += insets.top + insets.bottom;             context.dispose();            return dim;        }         public Dimension preferredLayoutSize(Container parent) {            JToolBar tb = (JToolBar)parent;            Insets insets = tb.getInsets();            Dimension dim = new Dimension();            SynthContext context = getContext(tb);             if (tb.getOrientation() == JToolBar.HORIZONTAL) {                dim.width = tb.isFloatable() ?                    SynthIcon.getIconWidth(handleIcon, context) : 0;                Dimension compDim;                for (int i = 0; i < tb.getComponentCount(); i++) {                    Component component = tb.getComponent(i);                    if (component.isVisible()) {                        compDim = component.getPreferredSize();                        dim.width += compDim.width;                        dim.height = Math.max(dim.height, compDim.height);                    }                }            } else {                dim.height = tb.isFloatable() ?                    SynthIcon.getIconHeight(handleIcon, context) : 0;                Dimension compDim;                for (int i = 0; i < tb.getComponentCount(); i++) {                    Component component = tb.getComponent(i);                    if (component.isVisible()) {                        compDim = component.getPreferredSize();                        dim.width = Math.max(dim.width, compDim.width);                        dim.height += compDim.height;                    }                }            }            dim.width += insets.left + insets.right;            dim.height += insets.top + insets.bottom;             context.dispose();            return dim;        }         public void layoutContainer(Container parent) {            JToolBar tb = (JToolBar)parent;            Insets insets = tb.getInsets();            boolean ltr = tb.getComponentOrientation().isLeftToRight();            SynthContext context = getContext(tb);             Component c;            Dimension d;             // JToolBar by default uses a somewhat modified BoxLayout as            // its layout manager. For compatibility reasons, we want to            // support Box "glue" as a way to move things around on the            // toolbar. "glue" is represented in BoxLayout as a Box.Filler            // with a minimum and preferred size of (0,0).            // So what we do here is find the number of such glue fillers            // and figure out how much space should be allocated to them.            int glueCount = 0;            for (int i=0; i<tb.getComponentCount(); i++) {                if (isGlue(tb.getComponent(i))) glueCount++;            }             if (tb.getOrientation() == JToolBar.HORIZONTAL) {                int handleWidth = tb.isFloatable() ?                    SynthIcon.getIconWidth(handleIcon, context) : 0;                 // Note: contentRect does not take insets into account                // since it is used for determining the bounds that are                // passed to paintToolBarContentBackground().                contentRect.x = ltr ? handleWidth : 0;                contentRect.y = 0;                contentRect.width = tb.getWidth() - handleWidth;                contentRect.height = tb.getHeight();                 // However, we do take the insets into account here for                // the purposes of laying out the toolbar child components.                int x = ltr ?                    handleWidth + insets.left :                    tb.getWidth() - handleWidth - insets.right;                int baseY = insets.top;                int baseH = tb.getHeight() - insets.top - insets.bottom;                 // we need to get the minimum width for laying things out                // so that we can calculate how much empty space needs to                // be distributed among the "glue", if any                int extraSpacePerGlue = 0;                if (glueCount > 0) {                    int minWidth = minimumLayoutSize(parent).width;                    extraSpacePerGlue = (tb.getWidth() - minWidth) / glueCount;                    if (extraSpacePerGlue < 0) extraSpacePerGlue = 0;                }                 for (int i = 0; i < tb.getComponentCount(); i++) {                    c = tb.getComponent(i);                    if (c.isVisible()) {                        d = c.getPreferredSize();                        int y, h;                        if (d.height >= baseH || c instanceof JSeparator) {                            // Fill available height                            y = baseY;                            h = baseH;                        } else {                            // Center component vertically in the available space                            y = baseY + (baseH / 2) - (d.height / 2);                            h = d.height;                        }                        //if the component is a "glue" component then add to its                        //width the extraSpacePerGlue it is due                        if (isGlue(c)) d.width += extraSpacePerGlue;                        c.setBounds(ltr ? x : x - d.width, y, d.width, h);                        x = ltr ? x + d.width : x - d.width;

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