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Diffstat (limited to 'libjava/classpath/gnu/java/awt/peer/swing/SwingComponentPeer.java')
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diff --git a/libjava/classpath/gnu/java/awt/peer/swing/SwingComponentPeer.java b/libjava/classpath/gnu/java/awt/peer/swing/SwingComponentPeer.java deleted file mode 100644 index 8be95dcb724..00000000000 --- a/libjava/classpath/gnu/java/awt/peer/swing/SwingComponentPeer.java +++ /dev/null @@ -1,1136 +0,0 @@ -/* SwingComponentPeer.java -- An abstract base class for Swing based peers - Copyright (C) 2006, 2007 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 gnu.java.awt.peer.swing; - -import java.awt.AWTEvent; -import java.awt.AWTException; -import java.awt.BufferCapabilities; -import java.awt.Color; -import java.awt.Component; -import java.awt.Container; -import java.awt.Cursor; -import java.awt.Dimension; -import java.awt.EventQueue; -import java.awt.Font; -import java.awt.FontMetrics; -import java.awt.Graphics; -import java.awt.GraphicsConfiguration; -import java.awt.Image; -import java.awt.Point; -import java.awt.Rectangle; -import java.awt.Toolkit; -import java.awt.BufferCapabilities.FlipContents; -import java.awt.event.FocusEvent; -import java.awt.event.KeyEvent; -import java.awt.event.MouseEvent; -import java.awt.event.PaintEvent; -import java.awt.image.ColorModel; -import java.awt.image.ImageObserver; -import java.awt.image.ImageProducer; -import java.awt.image.VolatileImage; -import java.awt.peer.ComponentPeer; -import java.awt.peer.ContainerPeer; -import java.awt.peer.LightweightPeer; - -import javax.swing.JComponent; -import javax.swing.RepaintManager; - -/** - * The base class for Swing based component peers. This provides the basic - * functionality needed for Swing based component peers. Many methods are - * implemented to forward to the Swing component. Others however forward - * to the component's parent and expect the toplevel component peer to provide - * a real implementation of it. These are for example the key methods - * {@link #getGraphics()} and {@link #createImage(int, int)}, as well as - * {@link #getLocationOnScreen()}. - * - * This class also provides the necesary hooks into the Swing painting and - * event handling system. In order to achieve this, it traps paint, mouse and - * key events in {@link #handleEvent(AWTEvent)} and calls some special methods - * ({@link #peerPaint(Graphics)}, {@link #handleKeyEvent(KeyEvent)}, - * {@link #handleMouseEvent(MouseEvent)} and - * {@link #handleMouseMotionEvent(MouseEvent)}) that call the corresponding - * Swing methods. - * - * @author Roman Kennke (kennke@aicas.com) - */ -public class SwingComponentPeer - implements ComponentPeer -{ - - /** - * The AWT component for this peer. - */ - protected Component awtComponent; - - /** - * The Swing component for this peer. - */ - protected SwingComponent swingComponent; - - /** - * The font that is set for this peer. - */ - protected Font peerFont; - - /** - * The current repaint area. - */ - protected Rectangle paintArea; - - /** - * Creates a SwingComponentPeer instance. Subclasses are expected to call - * this constructor and thereafter call {@link #init(Component, JComponent)} - * in order to setup the AWT and Swing components properly. - */ - protected SwingComponentPeer() - { - // Nothing to do here. - } - - /** - * Initializes the AWT and Swing component for this peer. It is expected that - * subclasses call this from within their constructor. - * - * @param awtComp the AWT component for this peer - * @param swingComp the Swing component for this peer - */ - protected void init(Component awtComp, SwingComponent swingComp) - { - awtComponent = awtComp; - swingComponent = swingComp; - if (swingComponent != null) - { - JComponent c = swingComponent.getJComponent(); - if (c != null) - { - c.addNotify(); - RepaintManager.currentManager(c).setDoubleBufferingEnabled(false); - System.setProperty("gnu.awt.swing.doublebuffering", "true"); - } - } - - // Register this heavyweight component with the nearest heavyweight - // container, so we get peerPaint() triggered by that container. - if (! (this instanceof LightweightPeer)) - { - Component comp = awtComponent; - Container parent = comp.getParent(); - while (parent != null && - ! (parent.getPeer() instanceof SwingContainerPeer)) - { - comp = parent; - parent = comp.getParent(); - } - - // At this point we have the ancestor with a SwingContainerPeer - // (or null peer). - if (parent != null && parent.getPeer() instanceof SwingContainerPeer) - { - SwingContainerPeer p = (SwingContainerPeer) parent.getPeer(); - p.addHeavyweightDescendent(awtComponent); - } - } - } - - /** - * Returns the construction status of the specified image. This is called - * by {@link Component#checkImage(Image, int, int, ImageObserver)}. - * - * @param img the image - * @param width the width of the image - * @param height the height of the image - * @param ob the image observer to be notified of updates of the status - * - * @return a bitwise ORed set of ImageObserver flags - */ - public int checkImage(Image img, int width, int height, ImageObserver ob) - { - return Toolkit.getDefaultToolkit().checkImage(img, width, height, ob); - } - - /** - * Creates an image by starting the specified image producer. This is called - * by {@link Component#createImage(ImageProducer)}. - * - * @param prod the image producer to be used to create the image - * - * @return the created image - */ - public Image createImage(ImageProducer prod) - { - Image image = Toolkit.getDefaultToolkit().createImage(prod); - return image; - } - - /** - * Creates an empty image with the specified <code>width</code> and - * <code>height</code>. - * - * This is implemented to let the parent component create the image. This - * eventually goes up to the top-level component peer, which is then expected - * to deliver the image. - * - * @param width the width of the image to be created - * @param height the height of the image to be created - * - * @return the created image - */ - public Image createImage(int width, int height) - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - return parentPeer.createImage(width, height); - } - - /** - * Disables the component. This is called by {@link Component#disable()}. - */ - public void disable() - { - if (swingComponent != null) - swingComponent.getJComponent().setEnabled(false); - } - - /** - * Disposes the component peer. This should release all resources held by the - * peer. This is called when the component is no longer in use. - */ - public void dispose() - { - // Unregister this heavyweight component from the nearest heavyweight - // container. - if (! (this instanceof LightweightPeer)) - { - Component comp = awtComponent; - Container parent = comp.getParent(); - while (parent != null && - ! (parent.getPeer() instanceof SwingContainerPeer)) - { - comp = parent; - parent = comp.getParent(); - } - - // At this point we have the ancestor with a SwingContainerPeer - // (or null peer). - if (parent != null && parent.getPeer() instanceof SwingContainerPeer) - { - SwingContainerPeer p = (SwingContainerPeer) parent.getPeer(); - p.removeHeavyweightDescendent(awtComponent); - } - } - - awtComponent = null; - swingComponent = null; - } - - /** - * Enables the component. This is called by {@link Component#enable()}. - */ - public void enable() - { - if (swingComponent != null) - swingComponent.getJComponent().setEnabled(true); - } - - /** - * Returns the color model of the component. This is currently not used. - * - * @return the color model of the component - */ - public ColorModel getColorModel() - { - // FIXME: When this peer method will be used, we need to provide an - // implementation of this, probably forwarding to the toplevel peer, like - // in the other methods. - return null; - } - - /** - * Returns the font metrics for the specified font. This is called by - * {@link Component#getFontMetrics(Font)}. - * - * This is implemented to query the font metrics from the parent component. - * This will eventually call the top-level component peer, which is then - * expected to deliver a font metrics object. - * - * @param f the font for which to query the font metrics - * - * @return the font metrics for the specified font - */ - public FontMetrics getFontMetrics(Font f) - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - return parentPeer.getFontMetrics(f); - } - - /** - * Returns a {@link Graphics} object suitable for drawing on this component. - * This is called by {@link Component#getGraphics()}. - * - * This is implemented to query the graphics from the parent component and - * adjust the clip and translation to match this component. - * This will eventually call the top-level component peer, which is then - * expected to deliver a graphics object. - * - * @return a graphics object suitable for drawing on this component - */ - public Graphics getGraphics() - { - Component parent = awtComponent.getParent(); - Graphics g = parent.getGraphics(); - g.translate(awtComponent.getX(), awtComponent.getY()); - g.setClip(0, 0, awtComponent.getWidth(), awtComponent.getHeight()); - return g; - } - - /** - * Returns the location of this component in screen coordinates. This is - * called by {@link Component#getLocationOnScreen()}. - * - * This is implemented to query the parent component peer for its screen - * location and adds the offset of this component to it. This will eventually - * call the top-level component's peer, which is then expected to provide - * it's screen location. - * - * @return the location of this component in screen coordinates - */ - public Point getLocationOnScreen() - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - Point location = parentPeer.getLocationOnScreen(); - location.x += awtComponent.getX(); - location.y += awtComponent.getY(); - return location; - } - - /** - * Returns the minimum size for the component. This is called by - * {@link Component#getMinimumSize()}. - * - * This is implemented to return the Swing component's minimum size. - * - * @return the minimum size for the component - */ - public Dimension getMinimumSize() - { - return minimumSize(); - } - - /** - * Returns the preferred size for the component. This is called by - * {@link Component#getPreferredSize()}. - * - * This is implemented to return the Swing component's preferred size. - * - * @return the preferred size for the component - */ - public Dimension getPreferredSize() - { - return preferredSize(); - } - - /** - * Returns the toolkit that created this peer. - * - * @return the toolkit that created this peer - */ - public Toolkit getToolkit() - { - return Toolkit.getDefaultToolkit(); - } - - /** - * Handles the given event. This is called from - * {@link Component#dispatchEvent(AWTEvent)} to give the peer a chance to - * react to events for the component. - * - * @param e the event - */ - public void handleEvent(AWTEvent e) - { - switch (e.getID()) - { - case PaintEvent.UPDATE: - case PaintEvent.PAINT: - if (awtComponent.isShowing()) - { - Rectangle clip ; - synchronized (this) - { - coalescePaintEvent((PaintEvent) e); - assert paintArea != null; - clip = paintArea; - paintArea = null; - } - Graphics g = awtComponent.getGraphics(); - try - { - g.clipRect(clip.x, clip.y, clip.width, clip.height); - peerPaint(g, e.getID() == PaintEvent.UPDATE); - } - finally - { - g.dispose(); - } - } - break; - case MouseEvent.MOUSE_PRESSED: - case MouseEvent.MOUSE_RELEASED: - case MouseEvent.MOUSE_CLICKED: - case MouseEvent.MOUSE_ENTERED: - case MouseEvent.MOUSE_EXITED: - handleMouseEvent((MouseEvent) e); - break; - case MouseEvent.MOUSE_MOVED: - case MouseEvent.MOUSE_DRAGGED: - handleMouseMotionEvent((MouseEvent) e); - break; - case KeyEvent.KEY_PRESSED: - case KeyEvent.KEY_RELEASED: - case KeyEvent.KEY_TYPED: - handleKeyEvent((KeyEvent) e); - break; - case FocusEvent.FOCUS_GAINED: - case FocusEvent.FOCUS_LOST: - handleFocusEvent((FocusEvent)e); - break; - default: - // Other event types are not handled here. - break; - } - } - - /** - * Makes the component invisible. This is called from - * {@link Component#hide()}. - * - * This is implemented to call setVisible(false) on the Swing component. - */ - public void hide() - { - if (swingComponent != null) - swingComponent.getJComponent().setVisible(false); - - Component parent = awtComponent.getParent(); - if (parent != null) - parent.repaint(awtComponent.getX(), awtComponent.getY(), - awtComponent.getWidth(), awtComponent.getHeight()); - } - - /** - * Returns <code>true</code> if the component can receive keyboard input - * focus. This is called from {@link Component#isFocusTraversable()}. - * - * This is implemented to return isFocusable() from the Swing component. - * - * @specnote Part of the earlier 1.1 API, replaced by isFocusable(). - */ - public boolean isFocusTraversable() - { - return swingComponent != null ? - swingComponent.getJComponent().isFocusable() : false; - } - - /** - * Returns <code>true</code> if the component can receive keyboard input - * focus. This is called from {@link Component#isFocusable()}. - * - * This is implemented to return isFocusable() from the Swing component. - */ - public boolean isFocusable() - { - return swingComponent != null ? - swingComponent.getJComponent().isFocusable() : false; - } - - /** - * Returns the minimum size for the component. This is called by - * {@link Component#minimumSize()}. - * - * This is implemented to return the Swing component's minimum size. - * - * @return the minimum size for the component - */ - public Dimension minimumSize() - { - Dimension retVal; - if (swingComponent != null) - retVal = swingComponent.getJComponent().getMinimumSize(); - else - retVal = new Dimension(0, 0); - return retVal; - } - - /** - * Returns the preferred size for the component. This is called by - * {@link Component#getPreferredSize()}. - * - * This is implemented to return the Swing component's preferred size. - * - * @return the preferred size for the component - */ - public Dimension preferredSize() - { - Dimension retVal; - if (swingComponent != null) - retVal = swingComponent.getJComponent().getPreferredSize(); - else - retVal = new Dimension(0, 0); - return retVal; - } - - /** - * Paints the component. This is triggered by - * {@link Component#paintAll(Graphics)}. - * - * @param graphics the graphics to paint with - */ - public void paint(Graphics graphics) - { - peerPaint(graphics, false); - } - - /** - * Prepares an image for rendering on this component. This is called by - * {@link Component#prepareImage(Image, int, int, ImageObserver)}. - * - * @param img the image to prepare - * @param width the desired width of the rendered image - * @param height the desired height of the rendered image - * @param ob the image observer to be notified of updates in the preparation - * process - * - * @return <code>true</code> if the image has been fully prepared, - * <code>false</code> otherwise (in which case the image observer - * receives updates) - */ - public boolean prepareImage(Image img, int width, int height, ImageObserver ob) - { - Component parent = awtComponent.getParent(); - if(parent != null) - { - ComponentPeer parentPeer = parent.getPeer(); - return parentPeer.prepareImage(img, width, height, ob); - } - else - { - return Toolkit.getDefaultToolkit().prepareImage(img, width, height, ob); - } - } - - public void print(Graphics graphics) - { - // FIXME: I don't know what this method is supposed to do. - } - - /** - * Repaints the specified rectangle of this component. This is called from - * {@link Component#repaint(long, int, int, int, int)}. - * - * This is implemented to call repaint() on the Swing component. - * - * @param tm number of milliseconds to wait with repainting - * @param x the X coordinate of the upper left corner of the damaged - * rectangle - * @param y the Y coordinate of the upper left corner of the damaged - * rectangle - * @param width the width of the damaged rectangle - * @param height the height of the damaged rectangle - */ - public void repaint(long tm, int x, int y, int width, int height) - { - // NOTE: This is never called by AWT but is mandated by the peer interface. - if (swingComponent != null) - swingComponent.getJComponent().repaint(tm, x, y, width, height); - else - { - PaintEvent ev = new PaintEvent(awtComponent, PaintEvent.UPDATE, - new Rectangle(x, y, width, height)); - Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(ev); - } - } - - /** - * Requests that this component receives the focus. This is called from - * {@link Component#requestFocus()}. - * - * This calls requestFocus() on the Swing component. - * - * @specnote Part of the earlier 1.1 API, apparently replaced by argument - * form of the same method. - */ - public void requestFocus() - { - // NOTE: This is never called by AWT but is mandated by the peer interface. - Toolkit tk = Toolkit.getDefaultToolkit(); - EventQueue q = tk.getSystemEventQueue(); - q.postEvent(new FocusEvent(awtComponent, FocusEvent.FOCUS_GAINED, false)); - } - - /** - * Requests that this component receives the focus. This is called from - * {@link Component#requestFocus()}. - * - * This calls requestFocus() on the Swing component. - * - * @param source the actual component that requests focus (may be a - * lightweight descendant of the heavyweight container) - * @param tmp true when the change is temporary - * @param allowWindowFocus - * @param tm the timestamp of the focus change - * - * @return true when the focus change is guaranteed to be granted, false - * otherwise - */ - public boolean requestFocus(Component source, boolean tmp, - boolean allowWindowFocus, long tm) - { - Toolkit tk = Toolkit.getDefaultToolkit(); - EventQueue q = tk.getSystemEventQueue(); - q.postEvent(new FocusEvent(source, FocusEvent.FOCUS_GAINED, tmp)); - return true; - } - - /** - * Notifies the peer that the bounds of this component have changed. This - * is called by {@link Component#reshape(int, int, int, int)}. - * - * This is implemented to call setBounds() on the Swing component. - * - * @param x the X coordinate of the upper left corner of the component - * @param y the Y coordinate of the upper left corner of the component - * @param width the width of the component - * @param height the height of the component - */ - public void reshape(int x, int y, int width, int height) - { - if (swingComponent != null) - swingComponent.getJComponent().setBounds(x, y, width, height); - } - - /** - * Sets the background color of the component. This is called by - * {@link Component#setBackground(Color)}. - * - * This is implemented to call setBackground() on the Swing component. - * - * @param color the background color to set - */ - public void setBackground(Color color) - { - if (swingComponent != null) - swingComponent.getJComponent().setBackground(color); - } - - /** - * Notifies the peer that the bounds of this component have changed. This - * is called by {@link Component#setBounds(int, int, int, int)}. - * - * This is implemented to call setBounds() on the Swing component. - * - * @param x the X coordinate of the upper left corner of the component - * @param y the Y coordinate of the upper left corner of the component - * @param width the width of the component - * @param height the height of the component - */ - public void setBounds(int x, int y, int width, int height) - { - reshape(x, y, width, height); - } - - /** - * Sets the cursor of the component. This is called by - * {@link Component#setCursor(Cursor)}. - * - * This is implemented to call setCursor() on the Swing component. - * - * @specnote Part of the earlier 1.1 API, apparently no longer needed. - */ - public void setCursor(Cursor cursor) - { - if (swingComponent != null) - swingComponent.getJComponent().setCursor(cursor); - } - - /** - * Sets the enabled/disabled state of this component. This is called by - * {@link Component#setEnabled(boolean)}. - * - * This is implemented to call setEnabled() on the Swing component. - * - * @param enabled <code>true</code> to enable the component, - * <code>false</code> to disable it - */ - public void setEnabled(boolean enabled) - { - if (swingComponent != null) - swingComponent.getJComponent().setEnabled(enabled); - } - - /** - * Sets the font of the component. This is called by - * {@link Component#setFont(Font)}. - * - * This is implemented to call setFont() on the Swing component. - * - * @param font the font to set - */ - public void setFont(Font font) - { - peerFont = font; - if (swingComponent != null) - swingComponent.getJComponent().setFont(font); - } - - /** - * Sets the foreground color of the component. This is called by - * {@link Component#setForeground(Color)}. - * - * This is implemented to call setForeground() on the Swing component. - * - * @param color the foreground color to set - */ - public void setForeground(Color color) - { - if (swingComponent != null) - swingComponent.getJComponent().setForeground(color); - } - - /** - * Sets the visibility state of the component. This is called by - * {@link Component#setVisible(boolean)}. - * - * This is implemented to call setVisible() on the Swing component. - * - * @param visible <code>true</code> to make the component visible, - * <code>false</code> to make it invisible - */ - public void setVisible(boolean visible) - { - if (visible) - show(); - else - hide(); - } - - /** - * Makes the component visible. This is called by {@link Component#show()}. - * - * This is implemented to call setVisible(true) on the Swing component. - */ - public void show() - { - if (swingComponent != null) - swingComponent.getJComponent().setVisible(true); - } - - /** - * Get the graphics configuration of the component. The color model - * of the component can be derived from the configuration. - * - * This is implemented to return the GraphicsConfiguration of the parent - * component. This will eventually call the toplevel component peer, which - * is expected to provide a real implementation. - * - * @return the graphics configuration of the component - */ - public GraphicsConfiguration getGraphicsConfiguration() - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - return parentPeer.getGraphicsConfiguration(); - } - - /** - * Part of an older API, no longer needed. - */ - public void setEventMask(long mask) - { - // Nothing to do here. - } - - /** - * Returns <code>true</code> if this component has been obscured, - * <code>false</code> otherwise. This will only work if - * {@link #canDetermineObscurity()} also returns <code>true</code>. - * - * This is not yet implemented. - * - * @return <code>true</code> if this component has been obscured, - * <code>false</code> otherwise. - */ - public boolean isObscured() - { - return false; - } - - /** - * Returns <code>true</code> if this component peer can determine if the - * component has been obscured, <code>false</code> otherwise. - * - * This is not yet implemented. - * - * @return <code>true</code> if this component peer can determine if the - * component has been obscured, <code>false</code> otherwise - */ - public boolean canDetermineObscurity() - { - return false; - } - - /** - * Coalesces the specified paint event. - * - * @param e the paint event - */ - public void coalescePaintEvent(PaintEvent e) - { - synchronized (this) - { - Rectangle newRect = e.getUpdateRect(); - if (paintArea == null) - paintArea = newRect; - else - Rectangle.union(paintArea, newRect, paintArea); - } - } - - /** - * Updates the cursor. This is not yet implemented. - */ - public void updateCursorImmediately() - { - // Nothing to do here yet. - } - - /** - * Returns true, if this component can handle wheel scrolling, - * <code>false</code> otherwise. - * - * This is not yet implemented and returns <code>false</code>. - * - * @return true, if this component can handle wheel scrolling, - * <code>false</code> otherwise - */ - public boolean handlesWheelScrolling() - { - return false; - } - - /** - * A convenience method that creates a volatile image. The volatile - * image is created on the screen device on which this component is - * displayed, in the device's current graphics configuration. - * - * This is implemented to let the parent component peer create an image. - * This eventually ends up in the toplevel component peer, which is then - * responsible for creating the real image. - * - * @param width width of the image - * @param height height of the image - * - * @see VolatileImage - * - * @since 1.2 - */ - public VolatileImage createVolatileImage(int width, int height) - { - Component parent = awtComponent.getParent(); - VolatileImage im = null; - if (parent != null) - { - ComponentPeer parentPeer = parent.getPeer(); - im = parentPeer.createVolatileImage(width, height); - } - return im; - } - - /** - * Create a number of image buffers that implement a buffering - * strategy according to the given capabilities. - * - * This is implemented to forward to the parent component peer. Eventually - * this ends up in the top level component peer, which is then responsible - * for doing the real work. - * - * @param numBuffers the number of buffers - * @param caps the buffering capabilities - * - * @throws AWTException if the specified buffering strategy is not - * implemented - * - * @since 1.2 - */ - public void createBuffers(int numBuffers, BufferCapabilities caps) throws AWTException - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - parentPeer.createBuffers(numBuffers, caps); - } - - /** - * Return the back buffer of this component. - * - * This is implemented to forward to the parent. Eventually this ends - * up in the toplevel component, which is then responsible for providing - * a back buffer. - * - * @return the back buffer of this component. - * - * @since 1.2 - */ - public Image getBackBuffer() - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - return parentPeer.getBackBuffer(); - } - - /** - * Perform a page flip, leaving the contents of the back buffer in - * the specified state. - * - * This is implemented to forward to the parent. Eventually this ends - * up in the toplevel component, which is then responsible for doing the real - * work. - * - * @param contents the state in which to leave the back buffer - * - * @since 1.2 - */ - public void flip(FlipContents contents) - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - parentPeer.flip(contents); - } - - /** - * Destroy the resources created by createBuffers. - * - * This is implemented to forward to the parent component peer. Eventually - * this ends up in the top level component peer, which is then responsible - * for doing the real work. - * - * @since 1.2 - */ - public void destroyBuffers() - { - Component parent = awtComponent.getParent(); - ComponentPeer parentPeer = parent.getPeer(); - parentPeer.destroyBuffers(); - } - - /** - * Get the bounds of this component peer. - * - * This is implemented to forward to the Swing component. - * - * @return component peer bounds - * @since 1.5 - */ - public Rectangle getBounds() - { - Rectangle retVal; - if (swingComponent != null) - retVal = swingComponent.getJComponent().getBounds(); - else - retVal = new Rectangle(); - return retVal; - } - - /** - * Reparent this component under another container. - * - * @param parent - * @since 1.5 - */ - public void reparent(ContainerPeer parent) - { - // Nothing to do here. - } - - /** - * Set the bounds of this component peer. - * - * This is implemented to forward to the swing component. - * - * @param x the new x co-ordinate - * @param y the new y co-ordinate - * @param width the new width - * @param height the new height - * @param z the new stacking level - * @since 1.5 - */ - public void setBounds(int x, int y, int width, int height, int z) - { - if (swingComponent != null) - swingComponent.getJComponent().setBounds(x, y, width, height); - // FIXME: Somehow handle the Z order. - } - - /** - * Check if this component supports being reparented. - * - * @return true if this component can be reparented, - * false otherwise. - * @since 1.5 - */ - public boolean isReparentSupported() - { - return true; - } - - - /** - * Layout this component peer. - * - * @since 1.5 - */ - public void layout() - { - if (swingComponent != null) - swingComponent.getJComponent().doLayout(); - } - - /** - * Triggers 'heavyweight' painting of the components. This usually calls - * paint() on the Swing component. - * - * @param g the graphics context to use for painting - * @param update wether we need to call update or paint on the AWT component - */ - protected void peerPaint(Graphics g, boolean update) - { - peerPaintComponent(g); - - Graphics userGraphics = g.create(); - try{ - if (update) - awtComponent.update(userGraphics); - else - awtComponent.paint(userGraphics); - } finally { - userGraphics.dispose(); - } - - } - - /** - * Paints the actual 'heavyweight' swing component, if there is one - * associated to this peer. - * - * @param g the graphics to paint the component with - */ - protected void peerPaintComponent(Graphics g) - { - // Paint the actual Swing component if this peer has one. - if (swingComponent != null) - swingComponent.getJComponent().paint(g); - } - - /** - * Handles mouse events on the component. This is usually forwarded to the - * SwingComponent's processMouseEvent() method. - * - * @param e the mouse event - */ - protected void handleMouseEvent(MouseEvent e) - { - if (swingComponent != null) - swingComponent.handleMouseEvent(e); - } - - /** - * Handles mouse motion events on the component. This is usually forwarded - * to the SwingComponent's processMouseMotionEvent() method. - * - * @param e the mouse motion event - */ - protected void handleMouseMotionEvent(MouseEvent e) - { - if (swingComponent != null) - swingComponent.handleMouseMotionEvent(e); - } - - /** - * Handles key events on the component. This is usually forwarded to the - * SwingComponent's processKeyEvent() method. - * - * @param e the key event - */ - protected void handleKeyEvent(KeyEvent e) - { - if (swingComponent != null) - swingComponent.handleKeyEvent(e); - } - - /** - * Handles focus events on the component. This is usually forwarded to the - * SwingComponent's processFocusEvent() method. - * - * @param e the key event - */ - protected void handleFocusEvent(FocusEvent e) - { - if (swingComponent != null) - swingComponent.handleFocusEvent(e); - } - - - /** - * Returns the AWT component for this peer. - * - * @return the AWT component for this peer - */ - public Component getComponent() - { - return awtComponent; - } - - public boolean requestFocus(Component lightweightChild, boolean temporary, - boolean focusedWindowChangeAllowed, - long time, sun.awt.CausedFocusEvent.Cause cause) - { - return true; - } - -} |