Java example source code file (AquaInternalFramePaneUI.java)

This example Java source code file (AquaInternalFramePaneUI.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

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Java - Java tags/keywords

aquadockingdesktopmanager, aquainternalframepaneui, awt, basicdesktoppaneui, bean, component, container, dimension, dock_edge_slack, docklayoutmanager, event, graphics2d, gui, insets, jcomponent, jinternalframe, mouseevent, plaf, propertyvetoexception, swing

The AquaInternalFramePaneUI.java Java example source code

/*
 * Copyright (c) 2011, 2012, 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 com.apple.laf;

import java.awt.*;
import java.awt.event.*;
import java.beans.PropertyVetoException;

import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicDesktopPaneUI;

public class AquaInternalFramePaneUI extends BasicDesktopPaneUI implements MouseListener {

    JComponent fDock;
    DockLayoutManager fLayoutMgr;

    public static ComponentUI createUI(final JComponent c) {
        return new AquaInternalFramePaneUI();
    }

    public void update(final Graphics g, final JComponent c) {
        if (c.isOpaque()) {
            super.update(g, c);
            return;
        }
        paint(g, c);
    }

    public void installUI(final JComponent c) {
        super.installUI(c);
        fLayoutMgr = new DockLayoutManager();
        c.setLayout(fLayoutMgr);

        c.addMouseListener(this);
    }

    public void uninstallUI(final JComponent c) {
        c.removeMouseListener(this);

        if (fDock != null) {
            c.remove(fDock);
            fDock = null;
        }
        if (fLayoutMgr != null) {
            c.setLayout(null);
            fLayoutMgr = null;
        }
        super.uninstallUI(c);
    }

    // Our superclass hardcodes DefaultDesktopManager - how rude!
    protected void installDesktopManager() {
        if (desktop.getDesktopManager() == null) {
            desktopManager = new AquaDockingDesktopManager();
            desktop.setDesktopManager(desktopManager);
        }
    }

    protected void uninstallDesktopManager() {
        final DesktopManager manager = desktop.getDesktopManager();
        if (manager instanceof AquaDockingDesktopManager) {
            desktop.setDesktopManager(null);
        }
    }

    JComponent getDock() {
        if (fDock == null) {
            fDock = new Dock(desktop);
            desktop.add(fDock, new Integer(399)); // Just below the DRAG_LAYER
        }
        return fDock;
    }

    class DockLayoutManager implements LayoutManager {
        public void addLayoutComponent(final String name, final Component comp) {
        }

        public void removeLayoutComponent(final Component comp) {
        }

        public Dimension preferredLayoutSize(final Container parent) {
            return parent.getSize();
        }

        public Dimension minimumLayoutSize(final Container parent) {
            return parent.getSize();
        }

        public void layoutContainer(final Container parent) {
            if (fDock != null) ((Dock)fDock).updateSize();
        }
    }

    class Dock extends JComponent implements Border {
        static final int DOCK_EDGE_SLACK = 8;

        Dock(final JComponent parent) {
            setBorder(this);
            setLayout(new FlowLayout(FlowLayout.CENTER, 0, 0));
            setVisible(false);
        }

        public void removeNotify() {
            fDock = null;
            super.removeNotify();
        }

        void updateSize() {
            final Dimension d = getPreferredSize();
            setBounds((getParent().getWidth() - d.width) / 2, getParent().getHeight() - d.height, d.width, d.height);
        }

        public Component add(final Component c) {
            super.add(c);
            if (!isVisible()) {
                setVisible(true);
            }

            updateSize();
            validate();
            return c;
        }

        public void remove(final Component c) {
            super.remove(c);
            if (getComponentCount() == 0) {
                setVisible(false);
            } else {
                updateSize();
                validate();
            }
        }

        public Insets getBorderInsets(final Component c) {
            return new Insets(DOCK_EDGE_SLACK / 4, DOCK_EDGE_SLACK, 0, DOCK_EDGE_SLACK);
        }

        public boolean isBorderOpaque() {
            return false;
        }

        public void paintBorder(final Component c, final Graphics g, final int x, final int y, final int w, final int h) {
            if (!(g instanceof Graphics2D)) return;
            final Graphics2D g2d = (Graphics2D)g;

            final int height = getHeight();
            final int width = getWidth();

            final Object priorAA = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
            g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

            g2d.setColor(UIManager.getColor("DesktopIcon.borderColor"));
            g2d.fillRoundRect(4, 4, width - 9, height + DOCK_EDGE_SLACK, DOCK_EDGE_SLACK, DOCK_EDGE_SLACK);

            g2d.setColor(UIManager.getColor("DesktopIcon.borderRimColor"));
            g2d.setStroke(new BasicStroke(2.0f));
            g2d.drawRoundRect(4, 4, width - 9, height + DOCK_EDGE_SLACK, DOCK_EDGE_SLACK, DOCK_EDGE_SLACK);

            if (priorAA != null) g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, priorAA);
        }
    }

    class AquaDockingDesktopManager extends AquaInternalFrameManager {
        public void openFrame(final JInternalFrame f) {
            final JInternalFrame.JDesktopIcon desktopIcon = f.getDesktopIcon();
            final Container dock = desktopIcon.getParent();
            if (dock == null) return;

            if (dock.getParent() != null) dock.getParent().add(f);
            removeIconFor(f);
        }

        public void deiconifyFrame(final JInternalFrame f) {
            final JInternalFrame.JDesktopIcon desktopIcon = f.getDesktopIcon();
            final Container dock = desktopIcon.getParent();
            if (dock == null) return;

            if (dock.getParent() != null) dock.getParent().add(f);
            removeIconFor(f);
            // <rdar://problem/3712485> removed f.show(). show() is now deprecated and
            // it wasn't sending our frame to front nor selecting it. Now, we move it
            // to front and select it manualy. (vm)
            f.moveToFront();
            try {
                f.setSelected(true);
            } catch(final PropertyVetoException pve) { /* do nothing */ }
        }

        public void iconifyFrame(final JInternalFrame f) {
            final JInternalFrame.JDesktopIcon desktopIcon = f.getDesktopIcon();
            // paint the frame onto the icon before hiding the frame, else the contents won't show
            ((AquaInternalFrameDockIconUI)desktopIcon.getUI()).updateIcon();
            super.iconifyFrame(f);
        }

        void addIcon(final Container c, final JInternalFrame.JDesktopIcon desktopIcon) {
            final DesktopPaneUI ui = ((JDesktopPane)c).getUI();
            ((AquaInternalFramePaneUI)ui).getDock().add(desktopIcon);
        }
    }

    public void mousePressed(final MouseEvent e) {
        JInternalFrame selectedFrame = desktop.getSelectedFrame();
        if (selectedFrame != null) {
            try {
                selectedFrame.setSelected(false);
            } catch (PropertyVetoException ex) {}
            desktop.getDesktopManager().deactivateFrame(selectedFrame);
        }
    }

    public void mouseReleased(final MouseEvent e) { }
    public void mouseClicked(final MouseEvent e) { }
    public void mouseEntered(final MouseEvent e) { }
    public void mouseExited(final MouseEvent e) { }
}