1 /*
   2  * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.apple.laf;
  27 
  28 import java.awt.*;
  29 import java.awt.event.*;
  30 import java.awt.geom.Rectangle2D;
  31 import java.awt.image.BufferedImage;
  32 import java.beans.PropertyVetoException;
  33 
  34 import javax.swing.*;
  35 import javax.swing.plaf.*;
  36 
  37 import sun.swing.SwingUtilities2;
  38 
  39 /**
  40  * From MacDockIconUI
  41  *
  42  * A JRSUI L&F implementation of JInternalFrame.JDesktopIcon
  43  * @author
  44  * @version
  45  */
  46 public class AquaInternalFrameDockIconUI extends DesktopIconUI implements MouseListener, MouseMotionListener, ComponentListener {
  47     private static final String CACHED_FRAME_ICON_KEY = "apple.laf.internal.frameIcon";
  48 
  49     protected JInternalFrame.JDesktopIcon fDesktopIcon;
  50     protected JInternalFrame fFrame;
  51     protected ScaledImageLabel fIconPane;
  52     protected DockLabel fDockLabel;
  53     protected boolean fTrackingIcon = false;
  54     private TextUIDrawing textUIDrawing;
  55 
  56     public static ComponentUI createUI(final JComponent c) {
  57         return new AquaInternalFrameDockIconUI();
  58     }
  59 
  60     public void installUI(final JComponent c) {
  61         fDesktopIcon = (JInternalFrame.JDesktopIcon)c;
  62         installComponents();
  63         installListeners();
  64         textUIDrawing = SwingUtilities2.getTextUIDrawing(textUIDrawing);
  65     }
  66 
  67     public void uninstallUI(final JComponent c) {
  68         uninstallComponents();
  69         uninstallListeners();
  70         fDesktopIcon = null;
  71         fFrame = null;
  72         if (textUIDrawing != SwingUtilities2.DEFAULT_UI_TEXT_DRAWING
  73                 && textUIDrawing instanceof UIResource) {
  74             textUIDrawing = SwingUtilities2.DEFAULT_UI_TEXT_DRAWING;
  75         }
  76     }
  77 
  78     protected void installComponents() {
  79         fFrame = fDesktopIcon.getInternalFrame();
  80         fIconPane = new ScaledImageLabel();
  81         fDesktopIcon.setLayout(new BorderLayout());
  82         fDesktopIcon.add(fIconPane, BorderLayout.CENTER);
  83     }
  84 
  85     protected void uninstallComponents() {
  86         fDesktopIcon.setLayout(null);
  87         fDesktopIcon.remove(fIconPane);
  88     }
  89 
  90     protected void installListeners() {
  91         fDesktopIcon.addMouseListener(this);
  92         fDesktopIcon.addMouseMotionListener(this);
  93         fFrame.addComponentListener(this);
  94     }
  95 
  96     protected void uninstallListeners() {
  97         fFrame.removeComponentListener(this);
  98         fDesktopIcon.removeMouseMotionListener(this);
  99         fDesktopIcon.removeMouseListener(this);
 100     }
 101 
 102     public Dimension getMinimumSize(final JComponent c) {
 103         return new Dimension(32, 32);
 104     }
 105 
 106     public Dimension getMaximumSize(final JComponent c) {
 107         return new Dimension(128, 128);
 108     }
 109 
 110     public Dimension getPreferredSize(final JComponent c) {
 111         return new Dimension(64, 64); //$ Dock preferred size
 112     }
 113 
 114     public Insets getInsets(final JComponent c) {
 115         return new Insets(0, 0, 0, 0);
 116     }
 117 
 118     void updateIcon() {
 119         fIconPane.updateIcon();
 120     }
 121 
 122     public void mousePressed(final MouseEvent e) {
 123         fTrackingIcon = fIconPane.mouseInIcon(e);
 124         if (fTrackingIcon) fIconPane.repaint();
 125     }
 126 
 127     public void mouseReleased(final MouseEvent e) {// only when it's actually in the image
 128         if (fFrame.isIconifiable() && fFrame.isIcon()) {
 129             if (fTrackingIcon) {
 130                 fTrackingIcon = false;
 131                 if (fIconPane.mouseInIcon(e)) {
 132                     if (fDockLabel != null) fDockLabel.hide();
 133                     try {
 134                         fFrame.setIcon(false);
 135                     } catch(final PropertyVetoException e2) {}
 136                 } else {
 137                     fIconPane.repaint();
 138                 }
 139             }
 140         }
 141 
 142         // if the mouse was completely outside fIconPane, hide the label
 143         if (fDockLabel != null && !fIconPane.getBounds().contains(e.getX(), e.getY())) fDockLabel.hide();
 144     }
 145 
 146     public void mouseEntered(final MouseEvent e) {
 147         if ((e.getModifiers() & InputEvent.BUTTON1_MASK) != 0) return;
 148         String title = fFrame.getTitle();
 149         if (title == null || title.equals("")) title = "Untitled";
 150         fDockLabel = new DockLabel(title);
 151         fDockLabel.show(fDesktopIcon);
 152     }
 153 
 154     public void mouseExited(final MouseEvent e) {
 155         if (fDockLabel != null && (e.getModifiers() & InputEvent.BUTTON1_MASK) == 0) fDockLabel.hide();
 156     }
 157 
 158     public void mouseClicked(final MouseEvent e) { }
 159 
 160     public void mouseDragged(final MouseEvent e) { }
 161 
 162     public void mouseMoved(final MouseEvent e) { }
 163 
 164     public void componentHidden(final ComponentEvent e) { }
 165 
 166     public void componentMoved(final ComponentEvent e) { }
 167 
 168     public void componentResized(final ComponentEvent e) {
 169         fFrame.putClientProperty(CACHED_FRAME_ICON_KEY, null);
 170     }
 171 
 172     public void componentShown(final ComponentEvent e) {
 173         fFrame.putClientProperty(CACHED_FRAME_ICON_KEY, null);
 174     }
 175 
 176     @SuppressWarnings("serial") // Superclass is not serializable across versions
 177     class ScaledImageLabel extends JLabel {
 178         ScaledImageLabel() {
 179             super(null, null, CENTER);
 180         }
 181 
 182         void updateIcon() {
 183             final Object priorIcon = fFrame.getClientProperty(CACHED_FRAME_ICON_KEY);
 184             if (priorIcon instanceof ImageIcon) {
 185                 setIcon((ImageIcon)priorIcon);
 186                 return;
 187             }
 188 
 189             int width = fFrame.getWidth();
 190             int height = fFrame.getHeight();
 191 
 192             // Protect us from unsized frames, like in JCK test DefaultDesktopManager2008
 193             if (width <= 0 || height <= 0) {
 194                 width = 128;
 195                 height = 128;
 196             }
 197 
 198             final Image fImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB_PRE);
 199             final Graphics g = fImage.getGraphics();
 200             fFrame.paint(g);
 201             g.dispose();
 202 
 203             final float scale = (float)fDesktopIcon.getWidth() / (float)Math.max(width, height) * 0.89f;
 204             // Sending in -1 for width xor height causes it to maintain aspect ratio
 205             final ImageIcon icon = new ImageIcon(fImage.getScaledInstance((int)(width * scale), -1, Image.SCALE_SMOOTH));
 206             fFrame.putClientProperty(CACHED_FRAME_ICON_KEY, icon);
 207             setIcon(icon);
 208         }
 209 
 210         public void paint(final Graphics g) {
 211             if (getIcon() == null) updateIcon();
 212 
 213             g.translate(0, 2);
 214 
 215             if (!fTrackingIcon) {
 216                 super.paint(g);
 217                 return;
 218             }
 219 
 220             final ImageIcon prev = (ImageIcon)getIcon();
 221             final ImageIcon pressedIcon = new ImageIcon(AquaUtils.generateSelectedDarkImage(prev.getImage()));
 222             setIcon(pressedIcon);
 223             super.paint(g);
 224             setIcon(prev);
 225         }
 226 
 227         boolean mouseInIcon(final MouseEvent e) {
 228             return getBounds().contains(e.getX(), e.getY());
 229         }
 230 
 231         public Dimension getPreferredSize() {
 232             return new Dimension(64, 64); //$ Dock preferred size
 233         }
 234     }
 235 
 236     @SuppressWarnings("serial") // Superclass is not serializable across versions
 237     class DockLabel extends JLabel {
 238         static final int NUB_HEIGHT = 7;
 239         static final int ROUND_ADDITIONAL_HEIGHT = 8;
 240         static final int ROUND_ADDITIONAL_WIDTH = 12;
 241 
 242         DockLabel(final String text) {
 243             super(text);
 244             setBorder(null);
 245             setOpaque(false);
 246             setFont(AquaFonts.getDockIconFont());
 247 
 248             final FontMetrics metrics = getFontMetrics(getFont());
 249             setSize(SwingUtilities.computeStringWidth(metrics, getText()) + ROUND_ADDITIONAL_WIDTH * 2, metrics.getAscent() + NUB_HEIGHT + ROUND_ADDITIONAL_HEIGHT);
 250         }
 251 
 252         public void paint(final Graphics g) {
 253             final int width = getWidth();
 254             final int height = getHeight();
 255 
 256             final Font font = getFont();
 257             final FontMetrics metrics = getFontMetrics(font);
 258             g.setFont(font);
 259 
 260             final String text = getText().trim();
 261             final int ascent = metrics.getAscent();
 262 
 263             final Rectangle2D stringBounds = metrics.getStringBounds(text, g);
 264             final int halfway = width / 2;
 265 
 266             final int x = (halfway - (int)stringBounds.getWidth() / 2);
 267 
 268             final Graphics2D g2d = g instanceof Graphics2D ? (Graphics2D)g : null;
 269             if (g2d != null) {
 270                 g.setColor(UIManager.getColor("DesktopIcon.labelBackground"));
 271                 final Object origAA = g2d.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
 272                 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
 273 
 274                 final int roundHeight = height - ROUND_ADDITIONAL_HEIGHT + 1;
 275                 g.fillRoundRect(0, 0, width, roundHeight, roundHeight, roundHeight);
 276 
 277                 final int[] xpts = { halfway, halfway + NUB_HEIGHT, halfway - NUB_HEIGHT };
 278                 final int[] ypts = { height, height - NUB_HEIGHT, height - NUB_HEIGHT };
 279                 g.fillPolygon(xpts, ypts, 3);
 280 
 281                 g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, origAA);
 282             }
 283 
 284             g.setColor(Color.black);
 285             textUIDrawing.drawString(this, g, text, x, 2 + ascent);
 286             g.setColor(Color.white);
 287             textUIDrawing.drawString(this, g, text, x, 1 + ascent);
 288         }
 289 
 290         public void show(final Component invoker) {
 291             final int desiredLocationX = (invoker.getWidth() - getWidth()) / 2;
 292             final int desiredLocationY = -(getHeight() + 6);
 293 
 294             Container parent = invoker.getParent();
 295 
 296             for (Container p = parent; p != null; p = p.getParent()) {
 297                 if (p instanceof JRootPane) {
 298                     if (p.getParent() instanceof JInternalFrame) continue;
 299                     parent = ((JRootPane)p).getLayeredPane();
 300                     for (p = parent.getParent(); p != null && (!(p instanceof java.awt.Window)); p = p.getParent());
 301                     break;
 302                 }
 303             }
 304 
 305             final Point p = SwingUtilities.convertPoint(invoker, desiredLocationX, desiredLocationY, parent);
 306             setLocation(p.x, p.y);
 307             if (parent instanceof JLayeredPane) {
 308                 ((JLayeredPane)parent).add(this, JLayeredPane.POPUP_LAYER, 0);
 309             }
 310         }
 311 
 312         @Deprecated
 313         public void hide() {
 314             final Container parent = getParent();
 315             final Rectangle r = this.getBounds();
 316             if (parent == null) return;
 317             parent.remove(this);
 318             parent.repaint(r.x, r.y, r.width, r.height);
 319         }
 320     }
 321 }