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Diffstat (limited to 'libjava/classpath/javax/swing/plaf/metal/MetalRootPaneUI.java')
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diff --git a/libjava/classpath/javax/swing/plaf/metal/MetalRootPaneUI.java b/libjava/classpath/javax/swing/plaf/metal/MetalRootPaneUI.java new file mode 100644 index 000000000..84f1303f6 --- /dev/null +++ b/libjava/classpath/javax/swing/plaf/metal/MetalRootPaneUI.java @@ -0,0 +1,1075 @@ +/* MetalRootPaneUI.java + Copyright (C) 2005, 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.swing.plaf.metal; + +import java.awt.Color; +import java.awt.Component; +import java.awt.Container; +import java.awt.Dimension; +import java.awt.Frame; +import java.awt.Graphics; +import java.awt.Insets; +import java.awt.LayoutManager; +import java.awt.LayoutManager2; +import java.awt.Point; +import java.awt.Rectangle; +import java.awt.Window; +import java.awt.event.ActionEvent; +import java.awt.event.MouseEvent; +import java.beans.PropertyChangeEvent; + +import javax.swing.AbstractAction; +import javax.swing.Action; +import javax.swing.Icon; +import javax.swing.JButton; +import javax.swing.JComponent; +import javax.swing.JDialog; +import javax.swing.JFrame; +import javax.swing.JLabel; +import javax.swing.JLayeredPane; +import javax.swing.JMenu; +import javax.swing.JMenuBar; +import javax.swing.JRootPane; +import javax.swing.SwingConstants; +import javax.swing.SwingUtilities; +import javax.swing.UIManager; +import javax.swing.border.AbstractBorder; +import javax.swing.event.MouseInputAdapter; +import javax.swing.plaf.ComponentUI; +import javax.swing.plaf.basic.BasicRootPaneUI; + +/** + * A UI delegate for the {@link JRootPane} component. This implementation + * supports the JRootPane <code>windowDecorationStyle</code> property. + * + * @author Roman Kennke (kennke@aicas.com) + * + * @since 1.4 + */ +public class MetalRootPaneUI + extends BasicRootPaneUI +{ + + /** + * The border that is used on JRootPane when the windowDecorationStyle + * property of the JRootPane is set to a different value than NONE. + * + * @author Roman Kennke (kennke@aicas.com) + */ + private static class MetalFrameBorder + extends AbstractBorder + { + /** + * Returns the border insets. + * + * @param c the component + * @param newInsets the insets to be filled with the return value, may be + * <code>null</code> in which case a new object is created + * + * @return the border insets + */ + public Insets getBorderInsets(Component c, Insets newInsets) + { + if (newInsets == null) + newInsets = new Insets(5, 5, 5, 5); + else + { + newInsets.top = 5; + newInsets.left = 5; + newInsets.bottom = 5; + newInsets.right = 5; + } + return newInsets; + } + + /** + * Returns the border insets. + * + * @param c the component + * + * @return the border insets + */ + public Insets getBorderInsets(Component c) + { + return getBorderInsets(c, null); + } + + /** + * Paints the border for the specified component. + * + * @param c the component + * @param g the graphics device + * @param x the x-coordinate + * @param y the y-coordinate + * @param w the width + * @param h the height + */ + public void paintBorder(Component c, Graphics g, int x, int y, int w, + int h) + { + JRootPane f = (JRootPane) c; + Window frame = SwingUtilities.getWindowAncestor(f); + if (frame.isActive()) + g.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow()); + else + g.setColor(MetalLookAndFeel.getControlDarkShadow()); + + // Fill the border background. + g.fillRect(x, y, w, 5); + g.fillRect(x, y, 5, h); + g.fillRect(x + w - 5, y, 5, h); + g.fillRect(x, y + h - 5, w, 5); + + // Draw a dot in each corner. + g.setColor(MetalLookAndFeel.getControl()); + g.fillRect(x, y, 1, 1); + g.fillRect(x + w - 1, y, 1, 1); + g.fillRect(x + w - 1, y + h - 1, 1, 1); + g.fillRect(x, y + h - 1, 1, 1); + + // Draw the lines. + g.setColor(MetalLookAndFeel.getBlack()); + g.drawLine(x + 14, y + 2, x + w - 15, y + 2); + g.drawLine(x + 14, y + h - 3, x + w - 15, y + h - 3); + g.drawLine(x + 2, y + 14, x + 2, y + h - 15); + g.drawLine(x + w - 3, y + 14, x + w - 3, y + h - 15); + + // Draw the line highlights. + if (frame.isActive()) + g.setColor(MetalLookAndFeel.getPrimaryControlShadow()); + else + g.setColor(MetalLookAndFeel.getControlShadow()); + g.drawLine(x + 15, y + 3, x + w - 14, y + 3); + g.drawLine(x + 15, y + h - 2, x + w - 14, y + h - 2); + g.drawLine(x + 3, y + 15, x + 3, y + h - 14); + g.drawLine(x + w - 2, y + 15, x + w - 2, y + h - 14); + } + } + + /** + * The component that renders the title bar for frames. This duplicates + * most of {@link MetalInternalFrameTitlePane}. It is not reasonably possible + * to reuse that class because that is bound to the JInternalFrame and we + * need to handle JFrames/JRootPanes here. + * + * @author Roman Kennke (kennke@aicas.com) + */ + private static class MetalTitlePane extends JComponent + { + + /** + * Handles dragging of the title pane and moves the window accordingly. + */ + private class MouseHandler + extends MouseInputAdapter + { + /** + * The point where the dragging started. + */ + Point lastDragLocation; + + /** + * Receives notification when the mouse gets pressed on the title pane. + * This updates the lastDragLocation. + * + * @param ev the mouse event + */ + public void mousePressed(MouseEvent ev) + { + lastDragLocation = ev.getPoint(); + } + + /** + * Receives notification when the mouse is dragged on the title pane. + * This will move the nearest window accordingly. + * + * @param ev the mouse event + */ + public void mouseDragged(MouseEvent ev) + { + Point dragLocation = ev.getPoint(); + int deltaX = dragLocation.x - lastDragLocation.x; + int deltaY = dragLocation.y - lastDragLocation.y; + Window window = SwingUtilities.getWindowAncestor(rootPane); + Point loc = window.getLocation(); + window.setLocation(loc.x + deltaX, loc.y + deltaY); + // Note that we do not update the lastDragLocation. This is because + // we move the underlying window while dragging the component, which + // results in having the same lastDragLocation under the mouse while + // dragging. + } + } + + /** + * The Action responsible for closing the JInternalFrame. + */ + private class CloseAction extends AbstractAction + { + /** + * Creates a new action. + */ + public CloseAction() + { + super("Close"); + } + + /** + * This method is called when something closes the frame. + * + * @param e the ActionEvent + */ + public void actionPerformed(ActionEvent e) + { + Window frame = SwingUtilities.getWindowAncestor(rootPane); + if (frame instanceof JFrame) + { + JFrame jframe = (JFrame) frame; + switch (jframe.getDefaultCloseOperation()) + { + case JFrame.EXIT_ON_CLOSE: + jframe.setVisible(false); + jframe.dispose(); + System.exit(0); + break; + case JFrame.DISPOSE_ON_CLOSE: + jframe.setVisible(false); + jframe.dispose(); + break; + case JFrame.HIDE_ON_CLOSE: + jframe.setVisible(false); + break; + case JFrame.DO_NOTHING_ON_CLOSE: + default: + break; + } + } + else if (frame instanceof JDialog) + { + JDialog jdialog = (JDialog) frame; + switch (jdialog.getDefaultCloseOperation()) + { + case JFrame.DISPOSE_ON_CLOSE: + jdialog.setVisible(false); + jdialog.dispose(); + break; + case JFrame.HIDE_ON_CLOSE: + jdialog.setVisible(false); + break; + case JFrame.DO_NOTHING_ON_CLOSE: + default: + break; + } + } + } + } + + /** + * This action is performed when the iconify button is pressed. + */ + private class IconifyAction + extends AbstractAction + { + + public void actionPerformed(ActionEvent event) + { + Window w = SwingUtilities.getWindowAncestor(rootPane); + if (w instanceof Frame) + { + Frame f = (Frame) w; + int state = f.getExtendedState(); + f.setExtendedState(Frame.ICONIFIED); + } + } + + } + + /** + * This action is performed when the maximize button is pressed. + */ + private class MaximizeAction + extends AbstractAction + { + + public void actionPerformed(ActionEvent event) + { + Window w = SwingUtilities.getWindowAncestor(rootPane); + if (w instanceof Frame) + { + Frame f = (Frame) w; + int state = f.getExtendedState(); + f.setExtendedState(Frame.MAXIMIZED_BOTH); + } + } + } + + /** + * This helper class is used to create the minimize, maximize and close + * buttons in the top right corner of the Title Pane. These buttons are + * special since they cannot be given focus and have no border. + */ + private class PaneButton extends JButton + { + /** + * Creates a new PaneButton object with the given Action. + * + * @param a The Action that the button uses. + */ + public PaneButton(Action a) + { + super(a); + setMargin(new Insets(0, 0, 0, 0)); + } + + /** + * This method returns true if the Component can be focused. + * + * @return false. + */ + public boolean isFocusable() + { + // These buttons cannot be given focus. + return false; + } + + } + + /** + * The layout for the JRootPane when the <code>windowDecorationStyle</code> + * property is set. In addition to the usual JRootPane.RootLayout behaviour + * this lays out the titlePane. + * + * @author Roman Kennke (kennke@aicas.com) + */ + private class MetalTitlePaneLayout implements LayoutManager + { + /** + * Creates a new <code>TitlePaneLayout</code> object. + */ + public MetalTitlePaneLayout() + { + // Do nothing. + } + + /** + * Adds a Component to the Container. + * + * @param name The name to reference the added Component by. + * @param c The Component to add. + */ + public void addLayoutComponent(String name, Component c) + { + // Do nothing. + } + + /** + * This method is called to lay out the children of the Title Pane. + * + * @param c The Container to lay out. + */ + public void layoutContainer(Container c) + { + + Dimension size = c.getSize(); + Insets insets = c.getInsets(); + int width = size.width - insets.left - insets.right; + int height = size.height - insets.top - insets.bottom; + + int loc = width - insets.right - 1; + int top = insets.top + 2; + int buttonHeight = height - 4; + if (closeButton.isVisible()) + { + int buttonWidth = closeIcon.getIconWidth(); + loc -= buttonWidth + 2; + closeButton.setBounds(loc, top, buttonWidth, buttonHeight); + loc -= 6; + } + + if (maxButton.isVisible()) + { + int buttonWidth = maxIcon.getIconWidth(); + loc -= buttonWidth + 4; + maxButton.setBounds(loc, top, buttonWidth, buttonHeight); + } + + if (iconButton.isVisible()) + { + int buttonWidth = minIcon.getIconWidth(); + loc -= buttonWidth + 4; + iconButton.setBounds(loc, top, buttonWidth, buttonHeight); + loc -= 2; + } + + Dimension titlePreferredSize = title.getPreferredSize(); + title.setBounds(insets.left + 5, insets.top, + Math.min(titlePreferredSize.width, loc - insets.left - 10), + height); + + } + + /** + * This method returns the minimum size of the given Container given the + * children that it has. + * + * @param c The Container to get a minimum size for. + * + * @return The minimum size of the Container. + */ + public Dimension minimumLayoutSize(Container c) + { + return preferredLayoutSize(c); + } + + /** + * Returns the preferred size of the given Container taking + * into account the children that it has. + * + * @param c The Container to lay out. + * + * @return The preferred size of the Container. + */ + public Dimension preferredLayoutSize(Container c) + { + return new Dimension(22, 22); + } + + /** + * Removes a Component from the Container. + * + * @param c The Component to remove. + */ + public void removeLayoutComponent(Component c) + { + // Nothing to do here. + } + } + + JRootPane rootPane; + + /** The button that closes the JInternalFrame. */ + JButton closeButton; + + /** The button that iconifies the JInternalFrame. */ + JButton iconButton; + + /** The button that maximizes the JInternalFrame. */ + JButton maxButton; + + Icon minIcon; + + /** The icon displayed in the maximize button. */ + Icon maxIcon; + + /** The icon displayed in the iconify button. */ + private Icon iconIcon; + + /** The icon displayed in the close button. */ + Icon closeIcon; + + /** + * The background color of the TitlePane when the JInternalFrame is not + * selected. + */ + private Color notSelectedTitleColor; + + /** + * The background color of the TitlePane when the JInternalFrame is + * selected. + */ + private Color selectedTitleColor; + + /** + * The label used to display the title. This label is not added to the + * TitlePane. + */ + JLabel title; + + /** The action associated with closing the JInternalFrame. */ + private Action closeAction; + + /** The action associated with iconifying the JInternalFrame. */ + private Action iconifyAction; + + /** The action associated with maximizing the JInternalFrame. */ + private Action maximizeAction; + + /** The JMenuBar that is located at the top left of the Title Pane. */ + private JMenuBar menuBar; + + /** The JMenu inside the menuBar. */ + protected JMenu windowMenu; + + MetalTitlePane(JRootPane rp) + { + rootPane = rp; + setLayout(createLayout()); + title = new JLabel(); + title.setHorizontalAlignment(SwingConstants.LEFT); + title.setHorizontalTextPosition(SwingConstants.LEFT); + title.setOpaque(false); + installTitlePane(); + } + + protected LayoutManager createLayout() + { + return new MetalTitlePaneLayout(); + } + + /** + * This method installs the TitlePane onto the JInternalFrameTitlePane. It + * also creates any children components that need to be created and adds + * listeners to the appropriate components. + */ + protected void installTitlePane() + { + installDefaults(); + installListeners(); + createActions(); + assembleSystemMenu(); + createButtons(); + setButtonIcons(); + addSubComponents(); + enableActions(); + } + + private void enableActions() + { + // TODO: Implement this. + } + + private void addSubComponents() + { + add(menuBar); + add(closeButton); + add(iconButton); + add(maxButton); + } + + private void installListeners() + { + MouseInputAdapter mouseHandler = new MouseHandler(); + addMouseListener(mouseHandler); + addMouseMotionListener(mouseHandler); + } + + private void createActions() + { + closeAction = new CloseAction(); + iconifyAction = new IconifyAction(); + maximizeAction = new MaximizeAction(); + } + + private void assembleSystemMenu() + { + menuBar = createSystemMenuBar(); + windowMenu = createSystemMenu(); + menuBar.add(windowMenu); + addSystemMenuItems(windowMenu); + enableActions(); + } + + protected JMenuBar createSystemMenuBar() + { + if (menuBar == null) + menuBar = new JMenuBar(); + menuBar.removeAll(); + return menuBar; + } + + protected JMenu createSystemMenu() + { + if (windowMenu == null) + windowMenu = new JMenu(); + windowMenu.removeAll(); + return windowMenu; + } + + private void addSystemMenuItems(JMenu menu) + { + // TODO: Implement this. + } + + protected void createButtons() + { + closeButton = new PaneButton(closeAction); + closeButton.setText(null); + iconButton = new PaneButton(iconifyAction); + iconButton.setText(null); + maxButton = new PaneButton(maximizeAction); + maxButton.setText(null); + closeButton.setBorderPainted(false); + closeButton.setContentAreaFilled(false); + iconButton.setBorderPainted(false); + iconButton.setContentAreaFilled(false); + maxButton.setBorderPainted(false); + maxButton.setContentAreaFilled(false); + } + + protected void setButtonIcons() + { + if (closeIcon != null && closeButton != null) + closeButton.setIcon(closeIcon); + if (iconIcon != null && iconButton != null) + iconButton.setIcon(iconIcon); + if (maxIcon != null && maxButton != null) + maxButton.setIcon(maxIcon); + } + + /** + * Paints a representation of the current state of the internal frame. + * + * @param g the graphics device. + */ + public void paintComponent(Graphics g) + { + Window frame = SwingUtilities.getWindowAncestor(rootPane); + Color savedColor = g.getColor(); + paintTitleBackground(g); + paintChildren(g); + Dimension d = getSize(); + if (frame.isActive()) + g.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow()); + else + g.setColor(MetalLookAndFeel.getControlDarkShadow()); + + // put a dot in each of the top corners + g.drawLine(0, 0, 0, 0); + g.drawLine(d.width - 1, 0, d.width - 1, 0); + + g.drawLine(0, d.height - 1, d.width - 1, d.height - 1); + + // draw the metal pattern + if (UIManager.get("InternalFrame.activeTitleGradient") != null + && frame.isActive()) + { + MetalUtils.paintGradient(g, 0, 0, getWidth(), getHeight(), + SwingConstants.VERTICAL, + "InternalFrame.activeTitleGradient"); + } + + Rectangle b = title.getBounds(); + int startX = b.x + b.width + 5; + int endX = startX; + if (iconButton.isVisible()) + endX = Math.max(iconButton.getX(), endX); + else if (maxButton.isVisible()) + endX = Math.max(maxButton.getX(), endX); + else if (closeButton.isVisible()) + endX = Math.max(closeButton.getX(), endX); + endX -= 7; + if (endX > startX) + MetalUtils.fillMetalPattern(this, g, startX, 3, endX - startX, getHeight() - 6, Color.white, Color.gray); + g.setColor(savedColor); + } + + /** + * This method paints the TitlePane's background. + * + * @param g The Graphics object to paint with. + */ + protected void paintTitleBackground(Graphics g) + { + Window frame = SwingUtilities.getWindowAncestor(rootPane); + + if (!isOpaque()) + return; + + Color saved = g.getColor(); + Dimension dims = getSize(); + + Color bg = getBackground(); + if (frame.isActive()) + bg = selectedTitleColor; + else + bg = notSelectedTitleColor; + g.setColor(bg); + g.fillRect(0, 0, dims.width, dims.height); + g.setColor(saved); + } + + /** + * This method installs the defaults determined by the look and feel. + */ + private void installDefaults() + { + title.setFont(UIManager.getFont("InternalFrame.titleFont")); + selectedTitleColor = UIManager.getColor("InternalFrame.activeTitleBackground"); + notSelectedTitleColor = UIManager.getColor("InternalFrame.inactiveTitleBackground"); + closeIcon = UIManager.getIcon("InternalFrame.closeIcon"); + iconIcon = UIManager.getIcon("InternalFrame.iconifyIcon"); + maxIcon = UIManager.getIcon("InternalFrame.maximizeIcon"); + minIcon = MetalIconFactory.getInternalFrameAltMaximizeIcon(16); + Frame frame = (Frame) SwingUtilities.getWindowAncestor(rootPane); + title = new JLabel(frame.getTitle(), + MetalIconFactory.getInternalFrameDefaultMenuIcon(), + SwingConstants.LEFT); + } + } + + private static class MetalRootLayout + implements LayoutManager2 + { + + /** + * The cached layout info for the glass pane. + */ + private Rectangle glassPaneBounds; + + /** + * The cached layout info for the layered pane. + */ + private Rectangle layeredPaneBounds; + + /** + * The cached layout info for the content pane. + */ + private Rectangle contentPaneBounds; + + /** + * The cached layout info for the menu bar. + */ + private Rectangle menuBarBounds; + + /** + * The cached layout info for the title pane. + */ + private Rectangle titlePaneBounds; + + /** + * The cached preferred size. + */ + private Dimension prefSize; + + /** + * The title pane for l&f decorated frames. + */ + private MetalTitlePane titlePane; + + /** + * Creates a new MetalRootLayout. + * + * @param tp the title pane + */ + MetalRootLayout(MetalTitlePane tp) + { + titlePane = tp; + } + + public void addLayoutComponent(Component component, Object constraints) + { + // Nothing to do here. + } + + public Dimension maximumLayoutSize(Container target) + { + return preferredLayoutSize(target); + } + + public float getLayoutAlignmentX(Container target) + { + return 0.0F; + } + + public float getLayoutAlignmentY(Container target) + { + return 0.0F; + } + + public void invalidateLayout(Container target) + { + synchronized (this) + { + glassPaneBounds = null; + layeredPaneBounds = null; + contentPaneBounds = null; + menuBarBounds = null; + titlePaneBounds = null; + prefSize = null; + } + } + + public void addLayoutComponent(String name, Component component) + { + // Nothing to do here. + } + + public void removeLayoutComponent(Component component) + { + // TODO Auto-generated method stub + + } + + public Dimension preferredLayoutSize(Container parent) + { + JRootPane rp = (JRootPane) parent; + JLayeredPane layeredPane = rp.getLayeredPane(); + Component contentPane = rp.getContentPane(); + Component menuBar = rp.getJMenuBar(); + + // We must synchronize here, otherwise we cannot guarantee that the + // prefSize is still non-null when returning. + synchronized (this) + { + if (prefSize == null) + { + Insets i = parent.getInsets(); + prefSize = new Dimension(i.left + i.right, i.top + i.bottom); + Dimension contentPrefSize = contentPane.getPreferredSize(); + prefSize.width += contentPrefSize.width; + prefSize.height += contentPrefSize.height + + titlePane.getPreferredSize().height; + if (menuBar != null) + { + Dimension menuBarSize = menuBar.getPreferredSize(); + if (menuBarSize.width > contentPrefSize.width) + prefSize.width += menuBarSize.width - contentPrefSize.width; + prefSize.height += menuBarSize.height; + } + } + // Return a copy here so the cached value won't get trashed by some + // other component. + return new Dimension(prefSize); + } + } + + public Dimension minimumLayoutSize(Container parent) + { + return preferredLayoutSize(parent); + } + + public void layoutContainer(Container parent) + { + JRootPane rp = (JRootPane) parent; + JLayeredPane layeredPane = rp.getLayeredPane(); + Component contentPane = rp.getContentPane(); + Component menuBar = rp.getJMenuBar(); + Component glassPane = rp.getGlassPane(); + + if (glassPaneBounds == null || layeredPaneBounds == null + || contentPaneBounds == null || menuBarBounds == null) + { + Insets i = rp.getInsets(); + int containerWidth = parent.getBounds().width - i.left - i.right; + int containerHeight = parent.getBounds().height - i.top - i.bottom; + + // 1. The glassPane fills entire viewable region (bounds - insets). + // 2. The layeredPane filles entire viewable region. + // 3. The titlePane is placed at the upper edge of the layeredPane. + // 4. The menuBar is positioned at the upper edge of layeredPane. + // 5. The contentPane fills viewable region minus menuBar minus + // titlePane, if present. + + // +-------------------------------+ + // | JLayeredPane | + // | +--------------------------+ | + // | | titlePane + | + // | +--------------------------+ | + // | +--------------------------+ | + // | | menuBar | | + // | +--------------------------+ | + // | +--------------------------+ | + // | |contentPane | | + // | | | | + // | | | | + // | | | | + // | +--------------------------+ | + // +-------------------------------+ + + // Setup titlePaneBounds. + if (titlePaneBounds == null) + titlePaneBounds = new Rectangle(); + titlePaneBounds.width = containerWidth; + titlePaneBounds.height = titlePane.getPreferredSize().height; + + // Setup menuBarBounds. + if (menuBarBounds == null) + menuBarBounds = new Rectangle(); + menuBarBounds.setBounds(0, + titlePaneBounds.y + titlePaneBounds.height, + containerWidth, 0); + if (menuBar != null) + { + Dimension menuBarSize = menuBar.getPreferredSize(); + if (menuBarSize.height > containerHeight) + menuBarBounds.height = containerHeight; + else + menuBarBounds.height = menuBarSize.height; + } + + // Setup contentPaneBounds. + if (contentPaneBounds == null) + contentPaneBounds = new Rectangle(); + contentPaneBounds.setBounds(0, + menuBarBounds.y + menuBarBounds.height, + containerWidth, + containerHeight - menuBarBounds.y + - menuBarBounds.height); + glassPaneBounds = new Rectangle(i.left, i.top, containerWidth, containerHeight); + layeredPaneBounds = new Rectangle(i.left, i.top, containerWidth, containerHeight); + } + + // Layout components. + glassPane.setBounds(glassPaneBounds); + layeredPane.setBounds(layeredPaneBounds); + if (menuBar != null) + menuBar.setBounds(menuBarBounds); + contentPane.setBounds(contentPaneBounds); + titlePane.setBounds(titlePaneBounds); + } + + } + + /** + * The shared UI instance for MetalRootPaneUIs. + */ + private static MetalRootPaneUI instance; + + /** + * Constructs a shared instance of <code>MetalRootPaneUI</code>. + */ + public MetalRootPaneUI() + { + super(); + } + + /** + * Returns a shared instance of <code>MetalRootPaneUI</code>. + * + * @param component the component for which we return an UI instance + * + * @return A shared instance of <code>MetalRootPaneUI</code>. + */ + public static ComponentUI createUI(JComponent component) + { + if (instance == null) + instance = new MetalRootPaneUI(); + return instance; + } + + /** + * Installs this UI to the root pane. If the + * <code>windowDecorationsStyle</code> property is set on the root pane, + * the Metal window decorations are installed on the root pane. + * + * @param c + */ + public void installUI(JComponent c) + { + super.installUI(c); + JRootPane rp = (JRootPane) c; + if (rp.getWindowDecorationStyle() != JRootPane.NONE) + installWindowDecorations(rp); + } + + /** + * Uninstalls the UI from the root pane. This performs the superclass + * behaviour and uninstalls the window decorations that have possibly been + * installed by {@link #installUI}. + * + * @param c the root pane + */ + public void uninstallUI(JComponent c) + { + JRootPane rp = (JRootPane) c; + if (rp.getWindowDecorationStyle() != JRootPane.NONE) + uninstallWindowDecorations(rp); + super.uninstallUI(c); + } + + /** + * Receives notification if any of the JRootPane's property changes. In + * particular this catches changes to the <code>windowDecorationStyle</code> + * property and installs the window decorations accordingly. + * + * @param ev the property change event + */ + public void propertyChange(PropertyChangeEvent ev) + { + super.propertyChange(ev); + String propertyName = ev.getPropertyName(); + if (propertyName.equals("windowDecorationStyle")) + { + JRootPane rp = (JRootPane) ev.getSource(); + if (rp.getWindowDecorationStyle() != JRootPane.NONE) + installWindowDecorations(rp); + else + uninstallWindowDecorations(rp); + } + } + + /** + * Installs the window decorations to the root pane. This sets up a border, + * a title pane and a layout manager that can layout the root pane with that + * title pane. + * + * @param rp the root pane. + */ + private void installWindowDecorations(JRootPane rp) + { + rp.setBorder(new MetalFrameBorder()); + MetalTitlePane titlePane = new MetalTitlePane(rp); + rp.setLayout(new MetalRootLayout(titlePane)); + // We should have a contentPane already. + assert rp.getLayeredPane().getComponentCount() > 0 + : "We should have a contentPane already"; + + rp.getLayeredPane().add(titlePane, + JLayeredPane.FRAME_CONTENT_LAYER, 1); + } + + /** + * Uninstalls the window decorations from the root pane. This should rarely + * be necessary, but we do it anyway. + * + * @param rp the root pane + */ + private void uninstallWindowDecorations(JRootPane rp) + { + rp.setBorder(null); + JLayeredPane lp = rp.getLayeredPane(); + for (int i = lp.getComponentCount() - 1; i >= 0; --i) + { + if (lp.getComponent(i) instanceof MetalTitlePane) + { + lp.remove(i); + break; + } + } + } +} |