+++ /dev/null
-/* Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation
-
-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., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 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 java.awt;
-import java.awt.event.*;
-import java.awt.image.*;
-import java.io.PrintStream;
-import java.io.PrintWriter;
-import java.lang.reflect.*;
-import java.util.EventListener;
-import java.util.Locale;
-import java.util.ResourceBundle;
-import java.util.Vector;
-import java.awt.peer.ComponentPeer;
-import java.awt.peer.LightweightPeer;
-import java.beans.PropertyChangeSupport;
-import java.beans.PropertyChangeListener;
-// import javax.accessibility.AccessibleContext;
-
-/**
- * The root of all evil.
- *
- * Status: Incomplete. The event dispatch mechanism is implemented. All
- * other methods defined in the J2SE 1.3 API javadoc exist, but are mostly
- * incomplete or only stubs; except for methods relating to the Drag and Drop,
- * Input Method, and Accessibility frameworks: These methods are present but
- * commented out.
- */
-public abstract class Component implements ImageObserver, MenuContainer,
- java.io.Serializable
-{
- /**
- * Constant returned by the <code>getAlignmentY</code> method to indicate
- * that the component wishes to be aligned to the bottom relative to
- * other components.
- */
- public static final float BOTTOM_ALIGNMENT = (float)1.0;
-
- /**
- * Constant returned by the <code>getAlignmentY</code> and
- * <code>getAlignmentX</code> methods to indicate
- * that the component wishes to be aligned to the center relative to
- * other components.
- */
- public static final float CENTER_ALIGNMENT = (float)0.5;
-
- /**
- * Constant returned by the <code>getAlignmentY</code> method to indicate
- * that the component wishes to be aligned to the top relative to
- * other components.
- */
- public static final float TOP_ALIGNMENT = (float)0.0;
-
- /**
- * Constant returned by the <code>getAlignmentX</code> method to indicate
- * that the component wishes to be aligned to the right relative to
- * other components.
- */
- public static final float RIGHT_ALIGNMENT = (float)1.0;
-
- /**
- * Constant returned by the <code>getAlignmentX</code> method to indicate
- * that the component wishes to be aligned to the left relative to
- * other components.
- */
- public static final float LEFT_ALIGNMENT = (float)0.0;
-
- /* Make the treelock a String so that it can easily be identified
- in debug dumps. We clone the String in order to avoid a conflict in
- the unlikely event that some other package uses exactly the same string
- as a lock object. */
- static Object treeLock = new String("AWT_TREE_LOCK");
-
- /* Serialized fields from the serialization spec. */
- // FIXME: Default values?
- int x;
- int y;
- int width;
- int height;
- Color foreground;
- Color background;
- Font font;
- Font peerFont;
- Cursor cursor;
- Locale locale;
- boolean visible = true; // default (except for Window)
- boolean enabled = true;
- boolean valid;
- boolean hasFocus;
- //DropTarget dropTarget;
- Vector popups;
- String name;
- boolean nameExplicitlySet;
- Dimension minSize;
- Dimension prefSize;
- boolean newEventsOnly;
- long eventMask = AWTEvent.PAINT_EVENT_MASK;
- PropertyChangeSupport changeSupport;
- boolean isPacked;
- int componentSerializedDataVersion;
- /* AccessibleContext accessibleContext; */
-
- /* Anything else is non-serializable, and should be declared "transient". */
- transient Container parent;
- transient java.awt.peer.ComponentPeer peer;
-
- transient ComponentListener componentListener;
- transient FocusListener focusListener;
- transient KeyListener keyListener;
- transient MouseListener mouseListener;
- transient MouseMotionListener mouseMotionListener;
- transient InputMethodListener inputMethodListener;
- transient HierarchyListener hierarchyListener;
- transient HierarchyBoundsListener hierarchyBoundsListener;
-
- transient ComponentOrientation orientation = ComponentOrientation.UNKNOWN;
-
- /**
- * Default constructor for subclasses.
- */
- protected Component()
- {
- }
-
- /**
- * Returns the name of this component.
- *
- * @return The name of this component.
- */
- public String getName()
- {
- if (name == null && !nameExplicitlySet)
- name = generateName();
- return name;
- }
-
- /**
- * Sets the name of this component to the specified name.
- *
- * @param name The new name of this component.
- */
- public void setName(String name)
- {
- nameExplicitlySet = true;
- this.name = name;
- }
-
- /** Subclasses should override this to return unique component names like
- * "menuitem0".
- */
- String generateName()
- {
- // Component is abstract.
- return null;
- }
-
- /**
- * Returns the parent of this component.
- *
- * @return The parent of this component.
- */
- public Container getParent()
- {
- return parent;
- }
-
- // Sets the peer for this component.
- final void setPeer (ComponentPeer peer)
- {
- this.peer = peer;
- }
-
- /**
- * Returns the native windowing system peer for this component.
- *
- * @return The peer for this component.
- * @deprecated
- */
- // Classpath's Gtk peers rely on this.
- public java.awt.peer.ComponentPeer getPeer()
- {
- return peer;
- }
-
- // FIXME: java.awt.dnd classes not yet implemented
- /*
- public void setDropTarget(DropTarget dt)
- {
- this.dropTarget = dt;
- }
-
- public DropTarget getDropTarget()
- {
- return dropTarget;
- }
- */
-
- /** @since 1.3 */
- public GraphicsConfiguration getGraphicsConfiguration()
- {
- return getGraphicsConfigurationImpl();
- }
-
- /** Implementation method that allows classes such as Canvas and
- Window to override the graphics configuration without violating
- the published API. */
- GraphicsConfiguration getGraphicsConfigurationImpl()
- {
- if (peer != null)
- {
- GraphicsConfiguration config = peer.getGraphicsConfiguration();
- if (config != null)
- return config;
- }
-
- if (parent != null)
- return parent.getGraphicsConfiguration();
-
- return null;
- }
-
- /**
- * Returns the object used for synchronization locks on this component
- * when performing tree and layout functions.
- *
- * @return The synchronization lock for this component.
- */
- public final Object getTreeLock()
- {
- return treeLock;
- }
-
- // The sync lock object for this component.
- final void setTreeLock(Object tree_lock)
- {
- this.treeLock = tree_lock;
- }
-
- /**
- * Returns the toolkit in use for this component.
- *
- * @return The toolkit for this component.
- */
- public Toolkit getToolkit()
- {
- if (peer != null)
- {
- Toolkit tk = peer.getToolkit();
- if (tk != null)
- return tk;
- }
- if (parent != null)
- return parent.getToolkit ();
- return Toolkit.getDefaultToolkit ();
- }
-
- /**
- * Tests whether or not this component is valid. A invalid component needs
- * to have its layout redone.
- *
- * @return <code>true</code> if this component is valid, <code>false</code>
- * otherwise.
- */
- public boolean isValid()
- {
- return valid;
- }
-
- /** @since 1.2 */
- public boolean isDisplayable()
- {
- if (parent != null)
- return parent.isDisplayable();
- return false;
- }
-
- /**
- * Tests whether or not this component is visible.
- *
- * @return <code>true</code> if the component is visible,
- * <code>false</code> otherwise.
- */
- public boolean isVisible()
- {
- return visible;
- }
-
- /**
- * Tests whether or not this component is actually being shown on
- * the screen. This will be true if and only if it this component is
- * visible and its parent components are all visible.
- *
- * @return <code>true</code> if the component is showing on the screen,
- * <code>false</code> otherwise.
- */
- public boolean isShowing()
- {
- if (! visible || peer == null)
- return false;
-
- return parent == null ? true : parent.isShowing ();
- }
-
- /**
- * Tests whether or not this component is enabled.
- *
- * @return <code>true</code> if the component is enabled,
- * <code>false</code> otherwise.
- */
- public boolean isEnabled()
- {
- return enabled;
- }
-
- /**
- * Enables or disables this component.
- *
- * @param enabled <code>true</code> to enable this component,
- * <code>false</code> to disable it.
- *
- * @deprecated Deprecated in favor of <code>setEnabled()</code>.
- */
- public void setEnabled(boolean b)
- {
- this.enabled = b;
- if (peer != null)
- peer.setEnabled(b);
- }
-
- /**
- * Enables this component.
- *
- * @deprecated Deprecated in favor of <code>setEnabled()</code>.
- */
- public void enable()
- {
- setEnabled(true);
- }
-
- /**
- * Enables or disables this component.
- *
- * @param enabled <code>true</code> to enable this component,
- * <code>false</code> to disable it.
- *
- * @deprecated Deprecated in favor of <code>setEnabled()</code>.
- */
- public void enable(boolean b)
- {
- setEnabled(b);
- }
-
- /**
- * Disables this component.
- *
- * @deprecated Deprecated in favor of <code>setEnabled()</code>.
- */
- public void disable()
- {
- setEnabled(false);
- }
-
- public boolean isDoubleBuffered()
- {
- return false;
- }
-
- /** @since 1.2 */
- public void enableInputMethods(boolean enable)
- {
- // FIXME
- }
-
- /**
- * Makes this component visible or invisible.
- *
- * @param visible <code>true</code> to make this component visible,
- * </code>false</code> to make it invisible.
- * @specnote Inspection by subclassing shows that Sun's implementation
- * calls show(boolean) which then calls show() or hide(). It is
- * the show() method that is overriden in subclasses like Window.
- * We do the same to preserve compatibility for subclasses.
- */
- public void setVisible(boolean b)
- {
- if (peer != null)
- peer.setVisible (b);
- this.visible = b;
- }
-
- /**
- * Makes this component visible on the screen.
- *
- * @deprecated Deprecated in favor of <code>setVisible()</code>.
- */
- public void show()
- {
- setVisible (true);
- }
-
- /**
- * Makes this component visible or invisible.
- *
- * @param visible <code>true</code> to make this component visible,
- * </code>false</code> to make it invisible.
- *
- * @deprecated Deprecated in favor of <code>setVisible()</code>.
- */
- public void show(boolean b)
- {
- setVisible (b);
- }
-
- /**
- * Hides this component so that it is no longer shown on the screen.
- *
- * @deprecated Deprecated in favor of <code>setVisible()</code>.
- */
- public void hide()
- {
- setVisible (false);
- }
-
- /**
- * Returns this component's foreground color.
- *
- * @return This component's foreground color.
- */
- public Color getForeground()
- {
- if (foreground != null)
- return foreground;
- if (parent != null)
- return parent.getForeground();
- return null;
- }
-
- /**
- * Sets this component's foreground color to the specified color.
- *
- * @param foreground_color The new foreground color.
- */
- public void setForeground(Color c)
- {
- if (peer != null)
- peer.setForeground(c);
- this.foreground = c;
- }
-
- /**
- * Returns this component's background color.
- *
- * @return the background color of the component. null may be
- * returned instead of the actual background color, if this
- * method is called before the component is added to the
- * component hierarchy.
- */
- public Color getBackground()
- {
- if (background != null)
- return background;
- if (parent != null)
- return parent.getBackground();
- return null;
- }
-
- /**
- * Sets this component's background color to the specified color.
- *
- * @param background_color The new background color
- */
- public void setBackground(Color c)
- {
- if (peer != null)
- peer.setBackground(c);
- this.background = c;
- }
-
- /**
- * Returns the font in use for this component.
- *
- * @return The font for this component.
- */
- public Font getFont()
- {
- if (font != null)
- return font;
- if (parent != null)
- return parent.getFont();
- return null;
- }
-
- /**
- * Sets the font for this component to the specified font.
- *
- * @param font The new font for this component.
- */
- public void setFont(Font f)
- {
- if (peer != null)
- peer.setFont(f);
- this.font = f;
- }
-
- /**
- * Returns the locale for this component. If this component does not
- * have a locale, the locale of the parent component is returned. If the
- * component has no parent, the system default locale is returned.
- *
- * @return The locale for this component.
- */
- public Locale getLocale() throws IllegalComponentStateException
- {
- if (locale != null)
- return locale;
- if (parent == null)
- throw new IllegalComponentStateException
- ("Component has no parent: Can not determine Locale");
- return parent.getLocale();
- }
-
- /**
- * Sets the locale for this component to the specified locale.
- *
- * @param locale The new locale for this component.
- */
- public void setLocale(Locale l)
- {
- this.locale = l;
-
- /* new writing/layout direction perhaps, or make more/less
- room for localized text labels */
- invalidate();
- }
-
- /**
- * Returns the color model of the device this componet is displayed on.
- *
- * @return This object's color model.
- */
- public ColorModel getColorModel()
- {
- GraphicsConfiguration config = getGraphicsConfiguration();
-
- if (config != null)
- return config.getColorModel();
-
- return getToolkit().getColorModel();
- }
-
- /**
- * Returns the location of this component's top left corner relative to
- * its parent component.
- *
- * @return The location of this component.
- */
- public Point getLocation()
- {
- return new Point(x, y);
- }
-
- /**
- * Returns the location of this component's top left corner in screen
- * coordinates.
- *
- * @return The location of this component in screen coordinates.
- */
- public Point getLocationOnScreen()
- {
- if (! isShowing ())
- throw new IllegalComponentStateException ("component not showing");
-
- // We know peer != null here.
- return peer.getLocationOnScreen ();
- }
-
- /**
- * Returns the location of this component's top left corner relative to
- * its parent component.
- *
- * @return The location of this component.
- *
- * @deprecated This method is deprecated in favor of
- * <code>getLocation()</code>.
- */
- public Point location()
- {
- return getLocation();
- }
-
- /**
- * Moves this component to the specified location. The coordinates are
- * the new upper left corner of this component.
- *
- * @param x The new X coordinate of this component.
- * @param y The new Y coordinate of this component.
- */
- public void setLocation (int x, int y)
- {
- if ((this.x == x) && (this.y == y))
- return;
-
- invalidate();
-
- this.x = x;
- this.y = y;
- if (peer != null)
- peer.setBounds(x, y, width, height);
- }
-
- /**
- * Moves this component to the specified location. The coordinates are
- * the new upper left corner of this component.
- *
- * @param x The new X coordinate of this component.
- * @param y The new Y coordinate of this component.
- *
- * @deprecated Deprecated in favor for <code>setLocation</code>.
- */
- public void move(int x, int y)
- {
- setLocation(x,y);
- }
-
- /**
- * Moves this component to the specified location. The coordinates are
- * the new upper left corner of this component.
- *
- * @param p New coordinates for this component.
- */
- public void setLocation(Point p)
- {
- setLocation(p.x, p.y);
- }
-
- /**
- * Returns the size of this object.
- *
- * @return The size of this object.
- */
- public Dimension getSize()
- {
- return new Dimension(width, height);
- }
-
- /**
- * Returns the size of this object.
- *
- * @return The size of this object.
- *
- * @deprecated This method is deprecated in favor of <code>getSize</code>.
- */
- public Dimension size()
- {
- return getSize();
- }
-
- /**
- * Sets the size of this component to the specified width and height.
- *
- * @param width The new width of this component.
- * @param height The new height of this component.
- */
- public void setSize(int width, int height)
- {
- if ((this.width == width) && (this.height == height))
- return;
-
- invalidate();
-
- this.width = width;
- this.height = height;
- if (peer != null)
- peer.setBounds(x, y, width, height);
- }
-
- /**
- * Sets the size of this component to the specified value.
- *
- * @param width The new width of the component.
- * @param height The new height of the component.
- *
- * @deprecated This method is deprecated in favor of <code>setSize</code>.
- */
- public void resize(int width, int height)
- {
- setSize(width, height);
- }
-
- /**
- * Sets the size of this component to the specified value.
- *
- * @param dim The new size of this component.
- */
- public void setSize(Dimension d)
- {
- setSize(d.width, d.height);
- }
-
- /**
- * Sets the size of this component to the specified value.
- *
- * @param dim The new size of this component.
- *
- * @deprecated This method is deprecated in favor of <code>setSize</code>.
- */
- public void resize(Dimension d)
- {
- setSize(d.width, d.height);
- }
-
- /**
- * Returns a bounding rectangle for this component. Note that the
- * returned rectange is relative to this component's parent, not to
- * the screen.
- *
- * @return The bounding rectangle for this component.
- */
- public Rectangle getBounds()
- {
- return new Rectangle (x, y, width, height);
- }
-
- /**
- * Returns a bounding rectangle for this component. Note that the
- * returned rectange is relative to this component's parent, not to
- * the screen.
- *
- * @return The bounding rectangle for this component.
- *
- * @deprecated Deprecated in favor of <code>getBounds()</code>.
- */
- public Rectangle bounds()
- {
- return getBounds();
- }
-
- /**
- * Sets the bounding rectangle for this component to the specified
- * values. Note that these coordinates are relative to the parent,
- * not to the screen.
- *
- * @param x The X coordinate of the upper left corner of the rectangle.
- * @param y The Y coordinate of the upper left corner of the rectangle.
- * @param width The width of the rectangle.
- * @param height The height of the rectangle.
- */
- public void setBounds(int x, int y, int w, int h)
- {
- if (this.x == x
- && this.y == y
- && this.width == w
- && this.height == h)
- return;
-
- invalidate();
-
- this.x = x;
- this.y = y;
- this.width = w;
- this.height = h;
-
- if (peer != null)
- peer.setBounds(x, y, w, h);
- }
-
- /**
- * Sets the bounding rectangle for this component to the specified
- * values. Note that these coordinates are relative to the parent,
- * not to the screen.
- *
- * @param x The X coordinate of the upper left corner of the rectangle.
- * @param y The Y coordinate of the upper left corner of the rectangle.
- * @param width The width of the rectangle.
- * @param height The height of the rectangle.
- *
- * @deprecated This method is deprecated in favor of
- * <code>setBounds(int, int, int, int)</code>.
- */
- public void reshape(int x, int y, int width, int height)
- {
- setBounds(x, y, width, height);
- }
-
- /**
- * Sets the bounding rectangle for this component to the specified
- * rectangle. Note that these coordinates are relative to the parent,
- * not to the screen.
- *
- * @param bounding_rectangle The new bounding rectangle.
- */
- public void setBounds(Rectangle r)
- {
- setBounds(r.x, r.y, r.width, r.height);
- }
-
- /** @since 1.2 */
- public int getX()
- {
- return x;
- }
-
- /** @since 1.2 */
- public int getY()
- {
- return y;
- }
-
- /** @since 1.2 */
- public int getWidth()
- {
- return width;
- }
-
- /** @since 1.2 */
- public int getHeight()
- {
- return height;
- }
-
- public Rectangle getBounds(Rectangle r)
- {
- r.x = this.x;
- r.y = this.y;
- r.width = this.width;
- r.height = this.height;
- return r;
- }
-
- public Dimension getSize(Dimension d)
- {
- d.width = this.width;
- d.height = this.height;
- return d;
- }
-
- public Point getLocation(Point p)
- {
- p.x = x;
- p.y = y;
- return p;
- }
-
- /** @since 1.2 */
- public boolean isOpaque()
- {
- return !isLightweight();
- }
-
- /**
- * Return whether the component is lightweight.
- *
- * @return true if component has a peer and and the peer is lightweight.
- *
- * @since 1.2
- */
- public boolean isLightweight()
- {
- return (peer != null) && (peer instanceof LightweightPeer);
- }
-
- /**
- * Returns the component's preferred size.
- *
- * @return The component's preferred size.
- */
- public Dimension getPreferredSize()
- {
- if (peer == null)
- return new Dimension(width, height);
- else
- return peer.getPreferredSize();
- }
-
- /**
- * Returns the component's preferred size.
- *
- * @return The component's preferred size.
- *
- * @deprecated Deprecated in favor of <code>getPreferredSize()</code>.
- */
- public Dimension preferredSize()
- {
- return getPreferredSize();
- }
-
- /**
- * Returns the component's minimum size.
- *
- * @return The component's minimum size.
- */
- public Dimension getMinimumSize()
- {
- if (peer == null)
- return new Dimension(width, height);
- else
- return peer.getMinimumSize();
- }
-
- /**
- * Returns the component's minimum size.
- *
- * @return The component's minimum size.
- *
- * @deprecated Deprecated in favor of <code>getMinimumSize()</code>
- */
- public Dimension minimumSize()
- {
- return getMinimumSize();
- }
-
- /**
- * Returns the component's maximum size.
- *
- * @return The component's maximum size.
- */
- public Dimension getMaximumSize()
- {
- return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
- }
-
- /**
- * Returns the preferred horizontal alignment of this component. The
- * value returned will be one of the constants defined in this class.
- *
- * @return The preferred horizontal alignment of this component.
- */
- public float getAlignmentX()
- {
- return CENTER_ALIGNMENT;
- }
-
- /**
- * Returns the preferred vertical alignment of this component. The
- * value returned will be one of the constants defined in this class.
- *
- * @return The preferred vertical alignment of this component.
- */
- public float getAlignmentY()
- {
- return CENTER_ALIGNMENT;
- }
-
- /**
- * Calls the layout manager to re-layout the component. This is called
- * during validation of a container in most cases.
- */
- public void doLayout()
- {
- // nothing to do unless we're a container
- }
-
- /**
- * Calls the layout manager to re-layout the component. This is called
- * during validation of a container in most cases.
- *
- * @deprecated This method is deprecated in favor of <code>doLayout()</code>.
- */
- public void layout()
- {
- doLayout();
- }
-
- /**
- * Called to ensure that the layout for this component is valid.
- */
- public void validate()
- {
- valid = true;
- }
-
- /**
- * Invalidates this component and all of its parent components. This will
- * cause them to have their layout redone.
- */
- public void invalidate()
- {
- valid = false;
-
- if ((parent != null) && parent.valid)
- parent.invalidate ();
- }
-
- /**
- * Returns a graphics object for this component. Returns <code>null</code>
- * if this component is not currently displayed on the screen.
- *
- * @return A graphics object for this component.
- */
- public Graphics getGraphics()
- {
- if (peer != null)
- {
- Graphics gfx = peer.getGraphics();
- if (gfx != null)
- return gfx;
-
- // create graphics for lightweight:
- Container parent = getParent();
- if (parent != null)
- {
- gfx = parent.getGraphics();
- Rectangle bounds = getBounds();
- gfx.setClip(bounds);
- gfx.translate(bounds.x, bounds.y);
- return gfx;
- }
- }
- return null;
- }
-
- /**
- * Returns the font metrics for the specified font in this component.
- *
- * @param font The font to retrieve metrics for.
- *
- * @return The font metrics for the specified font.
- */
- public FontMetrics getFontMetrics(Font font)
- {
- if (peer == null)
- return getToolkit().getFontMetrics(font);
- return peer.getFontMetrics (font);
- }
-
- /**
- * Sets the cursor for this component to the specified cursor.
- *
- * @param cursor The new cursor for this component.
- */
- public void setCursor(Cursor cursor)
- {
- this.cursor = cursor;
- if (peer != null)
- peer.setCursor (cursor);
- }
-
- /**
- * Returns the cursor for this component.
- *
- * @return The cursor for this component.
- */
- public Cursor getCursor()
- {
- return this.cursor;
- }
-
- /**
- * Paints this component on the screen. The clipping region in the
- * graphics context will indicate the region that requires painting.
- *
- * @param graphics The graphics context for this paint job.
- */
- public void paint(Graphics g)
- {
- }
-
- /**
- * Updates this component. This method fills the component
- * with the background color, then sets the foreground color of the
- * specified graphics context to the foreground color of this component
- * and calls the <code>paint()</code> method.
- * // FIXME: What are the coords relative to?
- *
- * @param graphics The graphics context for this update.
- */
- public void update(Graphics g)
- {
- paint(g);
- }
-
- /**
- * Paints this entire component, including any sub-components.
- *
- * @param graphics The graphics context for this paint job.
- */
- public void paintAll(Graphics g)
- {
- if (!visible)
- return;
-
- if (peer != null)
- peer.paint(g);
- paint(g);
- }
-
- /**
- * Repaint this entire component. The <code>update()</code> method
- * on this component will be called as soon as possible.
- * // FIXME: What are the coords relative to?
- */
- public void repaint()
- {
- repaint(0, 0, 0, getWidth(), getHeight());
- }
-
- /**
- * Repaint this entire component. The <code>update()</code> method
- * on this component will be called in approximate the specified number
- * of milliseconds.
- * // FIXME: What are the coords relative to?
- *
- * @param tm The number of milliseconds before this component should
- * be repainted.
- */
- public void repaint(long tm)
- {
- repaint(tm, 0, 0, getWidth(), getHeight());
- }
-
- /**
- * Repaints the specified rectangular region within this component.
- * This <code>update</code> method on this component will be called as
- * soon as possible.
- * // FIXME: What are the coords relative to?
- *
- * @param x The X coordinate of the upper left of the region to repaint
- * @param y The Y coordinate of the upper left of the region to repaint
- * @param width The width of the region to repaint.
- * @param height The height of the region to repaint.
- */
- public void repaint(int x, int y, int width, int height)
- {
- repaint(0, x, y, width, height);
- }
-
- /**
- * Repaints the specified rectangular region within this component.
- * This <code>update</code> method on this component will be called in
- * approximately the specified number of milliseconds.
- * // FIXME: What are the coords relative to?
- *
- * @param tm The number of milliseconds before this component should
- * be repainted.
- * @param x The X coordinate of the upper left of the region to repaint
- * @param y The Y coordinate of the upper left of the region to repaint
- * @param width The width of the region to repaint.
- * @param height The height of the region to repaint.
- */
- public void repaint(long tm, int x, int y, int width, int height)
- {
- // Handle lightweight repainting by forwarding to native parent
- if (isLightweight() && (parent != null))
- {
- if (parent != null)
- parent.repaint(tm, x+getX(), y+getY(), width, height);
- return;
- }
-
- if (peer != null)
- peer.repaint(tm, x, y, width, height);
- }
-
- /**
- * Prints this component. This method is
- * provided so that printing can be done in a different manner from
- * painting. However, the implementation in this class simply calls
- * the <code>paint()</code> method.
- *
- * @param graphics The graphics context of the print device.
- */
- public void print(Graphics g)
- {
- paint(g);
- }
-
- /**
- * Prints this component, including all sub-components. This method is
- * provided so that printing can be done in a different manner from
- * painting. However, the implementation in this class simply calls
- * the <code>paintAll()</code> method.
- *
- * @param graphics The graphics context of the print device.
- */
- public void printAll(Graphics g)
- {
- paintAll(g);
- }
-
- /**
- * Called when an image has changed so that this component is
- * repainted.
- *
- * @param image The image that has been updated.
- * @param flags Flags as specified in <code>ImageObserver</code>.
- * @param x The X coordinate
- * @param y The Y coordinate
- * @param width The width
- * @param height The height
- *
- * @return <code>true</code> if the image has been fully loaded,
- * <code>false</code> otherwise.
- */
- public boolean imageUpdate (Image img, int infoflags, int x, int y,
- int w, int h)
- {
- // FIXME
- return false;
- }
-
- /**
- * Creates an image from the specified producer.
- *
- * @param producer The image procedure to create the image from.
- *
- * @return The resulting image.
- */
- public Image createImage(ImageProducer producer)
- {
- return peer.createImage(producer);
- }
-
- /**
- * Creates an image with the specified width and height for use in
- * double buffering.
- *
- * @param width The width of the image.
- * @param height The height of the image.
- *
- * @return The requested image.
- */
- public Image createImage(int width, int height)
- {
- return getGraphicsConfiguration().createCompatibleImage(width, height);
- }
-
- /**
- * Prepares the specified image for rendering on this component.
- *
- * @param image The image to prepare for rendering.
- * @param observer The image observer to notify of the status of the
- * image preparation.
- *
- * @return <code>true</code> if the image is already fully prepared
- * for rendering, <code>false</code> otherwise.
- */
- public boolean prepareImage(Image image, ImageObserver observer)
- {
- return prepareImage(image, image.getWidth(observer),
- image.getHeight(observer), observer);
- }
-
- /**
- * Prepares the specified image for rendering on this component at the
- * specified scaled width and height
- *
- * @param image The image to prepare for rendering.
- * @param width The scaled width of the image.
- * @param height The scaled height of the image.
- * @param observer The image observer to notify of the status of the
- * image preparation.
- *
- * @return <code>true</code> if the image is already fully prepared
- * for rendering, <code>false</code> otherwise.
- */
- public boolean prepareImage(Image image, int width, int height,
- ImageObserver observer)
- {
- return peer.prepareImage(image, width, height, observer);
- }
-
- /**
- * Returns the status of the loading of the specified image. The value
- * returned will be those flags defined in <code>ImageObserver</code>.
- *
- * @param image The image to check on.
- * @param observer The observer to be notified as the image loading
- * progresses.
- *
- * @return The image observer flags indicating the status of the load.
- */
- public int checkImage(Image image, ImageObserver observer)
- {
- return checkImage(image, image.getWidth(observer),
- image.getHeight(observer), observer);
- }
-
- /**
- * Returns the status of the loading of the specified image. The value
- * returned will be those flags defined in <code>ImageObserver</code>.
- *
- * @param image The image to check on.
- * @param width The scaled image width.
- * @param height The scaled image height.
- * @param observer The observer to be notified as the image loading
- * progresses.
- *
- * @return The image observer flags indicating the status of the load.
- */
- public int checkImage (Image image, int width, int height,
- ImageObserver observer)
- {
- if (peer != null)
- return peer.checkImage (image, width, height, observer);
- return getToolkit ().checkImage (image, width, height, observer);
- }
-
- /**
- * Tests whether or not the specified point is contained within this
- * component. Coordinates are relative to this component.
- *
- * @param x The X coordinate of the point to test.
- * @param y The Y coordinate of the point to test.
- *
- * @return <code>true</code> if the point is within this component,
- * <code>false</code> otherwise.
- */
- public boolean contains (int x, int y)
- {
- return (x >= 0) && (y >= 0) && (x < width) && (y < height);
- }
-
- /**
- * Tests whether or not the specified point is contained within this
- * component. Coordinates are relative to this component.
- *
- * @param x The X coordinate of the point to test.
- * @param y The Y coordinate of the point to test.
- *
- * @return <code>true</code> if the point is within this component,
- * <code>false</code> otherwise.
- *
- * @deprecated Deprecated in favor of <code>contains(int, int)</code>.
- */
- public boolean inside(int x, int y)
- {
- return contains(x,y);
- }
-
- /**
- * Tests whether or not the specified point is contained within this
- * component. Coordinates are relative to this component.
- *
- * @param point The point to test.
- *
- * @return <code>true</code> if the point is within this component,
- * <code>false</code> otherwise.
- */
- public boolean contains(Point p)
- {
- return contains(p.x, p.y);
- }
-
- /**
- * Returns the component occupying the position (x,y). This will either
- * be this component, an immediate child component, or <code>null</code>
- * if neither of the first two occupies the specified location.
- *
- * @param x The X coordinate to search for components at.
- * @param y The Y coordinate to search for components at.
- *
- * @return The component at the specified location, for <code>null</code>
- * if there is none.
- */
- public Component getComponentAt(int x, int y)
- {
- if (contains(x,y))
- return this;
- return null;
- }
-
- /**
- * Returns the component occupying the position (x,y). This will either
- * be this component, an immediate child component, or <code>null</code>
- * if neither of the first two occupies the specified location.
- *
- * @param x The X coordinate to search for components at.
- * @param y The Y coordinate to search for components at.
- *
- * @return The component at the specified location, for <code>null</code>
- * if there is none.
- *
- * @deprecated The method is deprecated in favor of
- * <code>getComponentAt()</code>.
- */
- public Component locate(int x, int y)
- {
- return getComponentAt(x, y);
- }
-
- /**
- * Returns the component occupying the specified point This will either
- * be this component, an immediate child component, or <code>null</code>
- * if neither of the first two occupies the specified location.
- *
- * @param point The point to search for components at.
- *
- * @return The component at the specified location, for <code>null</code>
- * if there is none.
- */
- public Component getComponentAt(Point p)
- {
- return getComponentAt(p.x, p.y);
- }
-
- /**
- * AWT 1.0 event dispatcher.
- *
- * @deprecated Deprecated in favor of <code>dispatchEvent()</code>.
- */
- public void deliverEvent(Event e)
- {
- }
-
- /** Forward AWT events to processEvent() if:
- * - Events have been enabled for this type of event via enableEvents(),
- * OR:
- * - There is at least one registered listener for this type of event
- *
- * @param event The event to dispatch
- *
- * @specnote This method is final, but we need to be able to
- * override it in order to handle other event types in our
- * subclasses. The solution is to define a second, non-final
- * method - dispatchEventImpl() - to actually do the work.
- * Investigations with Thread.dumpStack() on the dispatch thread
- * in JDK 1.3 show Sun's implementation is doing the same
- * thing.
- */
- public final void dispatchEvent(AWTEvent e)
- {
- dispatchEventImpl(e);
-
- /* Give the peer a chance to handle the event. */
- if (peer != null)
- peer.handleEvent(e);
- }
-
- void dispatchEventImpl(AWTEvent e)
- {
- // Make use of event id's in order to avoid multiple instanceof tests.
- if (e.id <= ComponentEvent.COMPONENT_LAST
- && e.id >= ComponentEvent.COMPONENT_FIRST
- && (componentListener != null
- || (eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0))
- processEvent(e);
- else if (e.id <= KeyEvent.KEY_LAST
- && e.id >= KeyEvent.KEY_FIRST
- && (keyListener != null
- || (eventMask & AWTEvent.KEY_EVENT_MASK) != 0))
- processEvent(e);
- else if (e.id <= MouseEvent.MOUSE_LAST
- && e.id >= MouseEvent.MOUSE_FIRST
- && (mouseListener != null
- || mouseMotionListener != null
- || (eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0))
- processEvent(e);
- else if (e.id <= FocusEvent.FOCUS_LAST
- && e.id >= FocusEvent.FOCUS_FIRST
- && (focusListener != null
- || (eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0))
- processEvent(e);
- else if (e.id <= InputMethodEvent.INPUT_METHOD_LAST
- && e.id >= InputMethodEvent.INPUT_METHOD_FIRST
- && (inputMethodListener != null
- || (eventMask & AWTEvent.INPUT_METHOD_EVENT_MASK) != 0))
- processEvent(e);
- else if (e.id <= HierarchyEvent.HIERARCHY_LAST
- && e.id >= HierarchyEvent.HIERARCHY_FIRST
- && (hierarchyListener != null
- || hierarchyBoundsListener != null
- || (eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0))
- processEvent(e);
- else if (e.id <= PaintEvent.PAINT_LAST
- && e.id >= PaintEvent.PAINT_FIRST
- && (eventMask & AWTEvent.PAINT_EVENT_MASK) != 0)
- processEvent(e);
- }
-
- /**
- * AWT 1.0 event dispatcher.
- *
- * @deprecated Deprecated in favor of <code>dispatchEvent()</code>.
- */
- public boolean postEvent(Event e)
- {
- return false;
- }
-
- /**
- * Adds the specified listener to this component.
- *
- * @param listener The new listener to add.
- */
- public synchronized void addComponentListener(ComponentListener l)
- {
- componentListener = AWTEventMulticaster.add(componentListener, l);
- if (componentListener != null)
- enableEvents(AWTEvent.COMPONENT_EVENT_MASK);
- }
-
- /**
- * Removes the specified listener from the component.
- *
- * @param listener The listener to remove.
- */
- public synchronized void removeComponentListener(ComponentListener l)
- {
- componentListener = AWTEventMulticaster.remove(componentListener, l);
- }
-
- /**
- * Adds the specified listener to this component.
- *
- * @param listener The new listener to add.
- */
- public synchronized void addFocusListener(FocusListener l)
- {
- focusListener = AWTEventMulticaster.add(focusListener, l);
- if (focusListener != null)
- enableEvents(AWTEvent.FOCUS_EVENT_MASK);
- }
-
- /**
- * Removes the specified listener from the component.
- *
- * @param listener The listener to remove.
- */
- public synchronized void removeFocusListener(FocusListener l)
- {
- focusListener = AWTEventMulticaster.remove(focusListener, l);
- }
-
- /** @since 1.3 */
- public synchronized void addHierarchyListener(HierarchyListener l)
- {
- hierarchyListener = AWTEventMulticaster.add(hierarchyListener, l);
- if (hierarchyListener != null)
- enableEvents(AWTEvent.HIERARCHY_EVENT_MASK);
- }
-
- /** @since 1.3 */
- public synchronized void removeHierarchyListener(HierarchyListener l)
- {
- hierarchyListener = AWTEventMulticaster.remove(hierarchyListener, l);
- }
-
- /** @since 1.3 */
- public synchronized void addHierarchyBoundsListener(HierarchyBoundsListener l)
- {
- hierarchyBoundsListener =
- AWTEventMulticaster.add(hierarchyBoundsListener, l);
- if (hierarchyBoundsListener != null)
- enableEvents(AWTEvent.HIERARCHY_EVENT_MASK);
- }
-
- /** @since 1.3 */
- public synchronized void
- removeHierarchyBoundsListener(HierarchyBoundsListener l)
- {
- hierarchyBoundsListener =
- AWTEventMulticaster.remove(hierarchyBoundsListener, l);
- }
-
- /**
- * Adds the specified listener to this component.
- *
- * @param listener The new listener to add.
- */
- public synchronized void addKeyListener(KeyListener l)
- {
- keyListener = AWTEventMulticaster.add(keyListener, l);
- if (keyListener != null)
- enableEvents(AWTEvent.KEY_EVENT_MASK);
- }
-
- /**
- * Removes the specified listener from the component.
- *
- * @param listener The listener to remove.
- */
- public synchronized void removeKeyListener(KeyListener l)
- {
- keyListener = AWTEventMulticaster.remove(keyListener, l);
- }
-
- /**
- * Adds the specified listener to this component.
- *
- * @param listener The new listener to add.
- */
- public synchronized void addMouseListener(MouseListener l)
- {
- mouseListener = AWTEventMulticaster.add(mouseListener, l);
- if (mouseListener != null)
- enableEvents(AWTEvent.MOUSE_EVENT_MASK);
- }
-
- /**
- * Removes the specified listener from the component.
- *
- * @param listener The listener to remove.
- */
- public synchronized void removeMouseListener(MouseListener l)
- {
- mouseListener = AWTEventMulticaster.remove(mouseListener, l);
- }
-
- /**
- * Adds the specified listener to this component.
- *
- * @param listener The new listener to add.
- */
- public synchronized void addMouseMotionListener(MouseMotionListener l)
- {
- mouseMotionListener = AWTEventMulticaster.add(mouseMotionListener, l);
- if (mouseMotionListener != null)
- enableEvents(AWTEvent.MOUSE_EVENT_MASK);
- }
-
- /**
- * Removes the specified listener from the component.
- *
- * @param listener The listener to remove.
- */
- public synchronized void removeMouseMotionListener(MouseMotionListener l)
- {
- mouseMotionListener = AWTEventMulticaster.remove(mouseMotionListener, l);
- }
-
- /** @since 1.2 */
- public synchronized void addInputMethodListener(InputMethodListener l)
- {
- inputMethodListener = AWTEventMulticaster.add(inputMethodListener, l);
- if (inputMethodListener != null)
- enableEvents(AWTEvent.INPUT_METHOD_EVENT_MASK);
- }
-
- /** @since 1.2 */
- public synchronized void removeInputMethodListener(InputMethodListener l)
- {
- inputMethodListener = AWTEventMulticaster.remove(inputMethodListener, l);
- }
-
- /** Returns all registered EventListers of the given listenerType.
- * listenerType must be a subclass of EventListener, or a
- * ClassClassException is thrown.
- * @since 1.3
- */
- public EventListener[] getListeners(Class listenerType)
- {
- if (listenerType == ComponentListener.class)
- return getListenersImpl(listenerType, componentListener);
- else if (listenerType == FocusListener.class)
- return getListenersImpl(listenerType, focusListener);
- else if (listenerType == KeyListener.class)
- return getListenersImpl(listenerType, keyListener);
- else if (listenerType == MouseListener.class)
- return getListenersImpl(listenerType, mouseListener);
- else if (listenerType == MouseMotionListener.class)
- return getListenersImpl(listenerType, mouseMotionListener);
- else if (listenerType == InputMethodListener.class)
- return getListenersImpl(listenerType, inputMethodListener);
- else if (listenerType == HierarchyListener.class)
- return getListenersImpl(listenerType, hierarchyListener);
- else if (listenerType == HierarchyBoundsListener.class)
- return getListenersImpl(listenerType, hierarchyBoundsListener);
- else
- return getListenersImpl(listenerType, null);
- }
-
- static EventListener[] getListenersImpl(Class listenerType, EventListener el)
- {
- if (! EventListener.class.isAssignableFrom(listenerType))
- throw new ClassCastException();
-
- Vector v = new Vector();
- if (el != null)
- getListenerList (el, v);
- EventListener[] el_a = (EventListener[]) Array.newInstance(listenerType,
- v.size());
- v.copyInto(el_a);
- return el_a;
- }
-
- static void getListenerList(EventListener el, Vector v)
- {
- if (el instanceof AWTEventMulticaster)
- {
- AWTEventMulticaster mc = (AWTEventMulticaster) el;
- getListenerList(mc.a, v);
- getListenerList(mc.b, v);
- }
- else
- v.addElement(el);
- }
-
- // The input method framework is currently unimplemented.
- // /** @since 1.2 */
- //
- //public InputMethodRequests getInputMethodRequests()
- //
- // /** @since 1.2 */
- //
- // public InputContext getInputContext()
-
- /**
- * Enables the specified events. The events to enable are specified
- * by OR-ing together the desired masks from <code>AWTEvent</code>.
- * <p>
- * Events are enabled by default when a listener is attached to the
- * component for that event type. This method can be used by subclasses
- * to ensure the delivery of a specified event regardless of whether
- * or not a listener is attached.
- *
- * @param enable_events The desired events to enable.
- */
- protected final void enableEvents(long eventsToEnable)
- {
- eventMask |= eventsToEnable;
- // TODO: Unlike Sun's implementation, I think we should try and
- // enable/disable events at the peer (gtk/X) level. This will avoid
- // clogging the event pipeline with useless mousemove events that
- // we arn't interested in, etc. This will involve extending the peer
- // interface, but thats okay because the peer interfaces have been
- // deprecated for a long time, and no longer feature in the
- // API specification at all.
-
- if (isLightweight() && (parent != null))
- parent.enableEvents(eventsToEnable);
- else if (peer != null)
- peer.setEventMask (eventMask);
- }
-
- /**
- * Disables the specified events. The events to disable are specified
- * by OR-ing together the desired masks from <code>AWTEvent</code>.
- *
- * @param disable_events The desired events to disable.
- */
- protected final void disableEvents(long eventsToDisable)
- {
- eventMask &= ~eventsToDisable;
- // forward new event mask to peer?
- }
-
- /** coalesceEvents is called by the EventQueue if two events with the same
- * event id are queued. Returns a new combined event, or null if no
- * combining is done.
- */
- protected AWTEvent coalesceEvents(AWTEvent existingEvent, AWTEvent newEvent)
- {
- switch (existingEvent.id)
- {
- case MouseEvent.MOUSE_MOVED:
- case MouseEvent.MOUSE_DRAGGED:
- // Just drop the old (intermediate) event and return the new one.
- return newEvent;
- case PaintEvent.PAINT:
- case PaintEvent.UPDATE:
- return coalescePaintEvents((PaintEvent) existingEvent,
- (PaintEvent) newEvent);
- }
- return null;
- }
-
- /**
- * Coalesce paint events. Current heuristic is: Merge if the union of
- * areas is less than twice that of the sum of the areas. The X server
- * tend to create a lot of paint events that are adjacent but not
- * overlapping.
- *
- * <pre>
- * +------+
- * | +-----+ ...will be merged
- * | | |
- * | | |
- * +------+ |
- * +-----+
- *
- * +---------------+--+
- * | | | ...will not be merged
- * +---------------+ |
- * | |
- * | |
- * | |
- * | |
- * | |
- * +--+
- * </pre>
- */
- private PaintEvent coalescePaintEvents(PaintEvent queuedEvent,
- PaintEvent newEvent)
- {
- Rectangle r1 = queuedEvent.getUpdateRect();
- Rectangle r2 = newEvent.getUpdateRect();
- Rectangle union = r1.union(r2);
-
- int r1a = r1.width * r1.height;
- int r2a = r2.width * r2.height;
- int ua = union.width * union.height;
-
- if (ua > (r1a+r2a)*2)
- return null;
- /* The 2 factor should maybe be reconsidered. Perhaps 3/2
- would be better? */
-
- newEvent.setUpdateRect(union);
- return newEvent;
- }
-
- /**
- * Processes the specified event. In this class, this method simply
- * calls one of the more specific event handlers.
- *
- * @param event The event to process.
- */
- protected void processEvent(AWTEvent e)
- {
-
- /* Note: the order of these if statements are
- important. Subclasses must be checked first. Eg. MouseEvent
- must be checked before ComponentEvent, since a MouseEvent
- object is also an instance of a ComponentEvent. */
-
- if (e instanceof FocusEvent)
- processFocusEvent((FocusEvent) e);
- else if (e instanceof PaintEvent)
- processPaintEvent((PaintEvent) e);
- else if (e instanceof MouseEvent)
- {
- if (e.id == MouseEvent.MOUSE_MOVED
- || e.id == MouseEvent.MOUSE_DRAGGED)
- processMouseMotionEvent((MouseEvent) e);
- else
- processMouseEvent((MouseEvent) e);
- }
- else if (e instanceof ComponentEvent)
- processComponentEvent((ComponentEvent) e);
- else if (e instanceof KeyEvent)
- processKeyEvent((KeyEvent) e);
- else if (e instanceof InputMethodEvent)
- processInputMethodEvent((InputMethodEvent) e);
- else if (e instanceof HierarchyEvent)
- {
- if (e.id == HierarchyEvent.HIERARCHY_CHANGED)
- processHierarchyEvent((HierarchyEvent) e);
- else
- processHierarchyBoundsEvent((HierarchyEvent) e);
- }
- }
-
- /**
- * Called when a component event is dispatched and component events are
- * enabled. This method passes the event along to any listeners
- * that are attached.
- *
- * @param event The <code>ComponentEvent</code> to process.
- */
- protected void processComponentEvent(ComponentEvent e)
- {
- if (componentListener == null)
- return;
- switch (e.id)
- {
- case ComponentEvent.COMPONENT_HIDDEN:
- componentListener.componentHidden(e);
- break;
-
- case ComponentEvent.COMPONENT_MOVED:
- componentListener.componentMoved(e);
- break;
-
- case ComponentEvent.COMPONENT_RESIZED:
- componentListener.componentResized(e);
- break;
-
- case ComponentEvent.COMPONENT_SHOWN:
- componentListener.componentShown(e);
- break;
- }
- }
-
- /**
- * Called when a focus event is dispatched and component events are
- * enabled. This method passes the event along to any listeners
- * that are attached.
- *
- * @param event The <code>FocusEvent</code> to process.
- */
- protected void processFocusEvent(FocusEvent e)
- {
- if (focusListener == null)
- return;
- switch (e.id)
- {
- case FocusEvent.FOCUS_GAINED:
- focusListener.focusGained(e);
- break;
- case FocusEvent.FOCUS_LOST:
- focusListener.focusLost(e);
- break;
- }
- }
-
- /**
- * Called when a key event is dispatched and component events are
- * enabled. This method passes the event along to any listeners
- * that are attached.
- *
- * @param event The <code>KeyEvent</code> to process.
- */
- protected void processKeyEvent(KeyEvent e)
- {
- if (keyListener == null)
- return;
- switch (e.id)
- {
- case KeyEvent.KEY_PRESSED:
- keyListener.keyPressed(e);
- break;
- case KeyEvent.KEY_RELEASED:
- keyListener.keyReleased(e);
- break;
- case KeyEvent.KEY_TYPED:
- keyListener.keyTyped(e);
- break;
- }
- }
-
- /**
- * Called when a regular mouse event is dispatched and component events are
- * enabled. This method passes the event along to any listeners
- * that are attached.
- *
- * @param event The <code>MouseEvent</code> to process.
- */
- protected void processMouseEvent(MouseEvent e)
- {
- if (mouseListener == null)
- return;
- switch (e.id)
- {
- case MouseEvent.MOUSE_CLICKED:
- mouseListener.mouseClicked(e);
- break;
- case MouseEvent.MOUSE_ENTERED:
- mouseListener.mouseEntered(e);
- break;
- case MouseEvent.MOUSE_EXITED:
- mouseListener.mouseExited(e);
- break;
- case MouseEvent.MOUSE_PRESSED:
- mouseListener.mousePressed(e);
- break;
- case MouseEvent.MOUSE_RELEASED:
- mouseListener.mouseReleased(e);
- break;
- }
- }
-
- /**
- * Called when a mouse motion event is dispatched and component events are
- * enabled. This method passes the event along to any listeners
- * that are attached.
- *
- * @param event The <code>MouseMotionEvent</code> to process.
- */
- protected void processMouseMotionEvent(MouseEvent e)
- {
- if (mouseMotionListener == null)
- return;
- switch (e.id)
- {
- case MouseEvent.MOUSE_DRAGGED:
- mouseMotionListener.mouseDragged(e);
- break;
- case MouseEvent.MOUSE_MOVED:
- mouseMotionListener.mouseMoved(e);
- break;
- }
- }
-
- /** @since 1.2 */
- protected void processInputMethodEvent(InputMethodEvent e)
- {
- if (inputMethodListener == null)
- return;
- switch (e.id)
- {
- case InputMethodEvent.CARET_POSITION_CHANGED:
- inputMethodListener.caretPositionChanged(e);
- break;
- case InputMethodEvent.INPUT_METHOD_TEXT_CHANGED:
- inputMethodListener.inputMethodTextChanged(e);
- break;
- }
- }
-
- /** @since 1.3 */
- protected void processHierarchyEvent(HierarchyEvent e)
- {
- if (hierarchyListener == null)
- return;
- if (e.id == HierarchyEvent.HIERARCHY_CHANGED)
- hierarchyListener.hierarchyChanged(e);
- }
-
- /** @since 1.3 */
- protected void processHierarchyBoundsEvent(HierarchyEvent e)
- {
- if (hierarchyBoundsListener == null)
- return;
- switch (e.id)
- {
- case HierarchyEvent.ANCESTOR_MOVED:
- hierarchyBoundsListener.ancestorMoved(e);
- break;
- case HierarchyEvent.ANCESTOR_RESIZED:
- hierarchyBoundsListener.ancestorResized(e);
- break;
- }
- }
-
- private void processPaintEvent(PaintEvent event)
- {
- // Can't do graphics without peer
- if (peer == null)
- return;
-
- Graphics gfx = getGraphics();
- Shape clip = event.getUpdateRect();
- gfx.setClip(clip);
-
- switch (event.id)
- {
- case PaintEvent.PAINT:
- paint(gfx);
- break;
- case PaintEvent.UPDATE:
- update(gfx);
- break;
- default:
- throw new IllegalArgumentException("unknown paint event");
- }
- }
-
- /**
- * AWT 1.0 event processor.
- *
- * @deprecated Deprecated in favor of <code>processEvent</code>.
- */
- public boolean handleEvent(Event evt)
- {
- return false;
- }
-
- /**
- * AWT 1.0 mouse event.
- *
- * @deprecated Deprecated in favor of <code>processMouseEvent()</code>.
- */
- public boolean mouseDown(Event evt, int x, int y)
- {
- return false;
- }
-
- /**
- * AWT 1.0 mouse event.
- *
- * @deprecated Deprecated in favor of <code>processMouseMotionEvent()</code>.
- */
- public boolean mouseDrag(Event evt, int x, int y)
- {
- return false;
- }
-
- /**
- * AWT 1.0 mouse event.
- *
- * @deprecated Deprecated in favor of <code>processMouseEvent()</code>.
- */
- public boolean mouseUp(Event evt, int x, int y)
- {
- return false;
- }
-
- /**
- * AWT 1.0 mouse event.
- *
- * @deprecated Deprecated in favor of <code>processMouseMotionEvent()</code>.
- */
- public boolean mouseMove(Event evt, int x, int y)
- {
- return false;
- }
-
- /**
- * AWT 1.0 mouse event.
- *
- * @deprecated Deprecated in favor of <code>processMouseEvent()</code>.
- */
- public boolean mouseEnter(Event evt, int x, int y)
- {
- return false;
- }
-
- /**
- * AWT 1.0 mouse event.
- *
- * @deprecated Deprecated in favor of <code>processMouseEvent()</code>.
- */
- public boolean mouseExit(Event evt, int x, int y)
- {
- return false;
- }
-
- /**
- * AWT 1.0 key press event.
- *
- * @deprecated Deprecated in favor of <code>processKeyEvent</code>.
- */
- public boolean keyDown(Event evt, int key)
- {
- return false;
- }
-
- /**
- * AWT 1.0 key press event.
- *
- * @deprecated Deprecated in favor of <code>processKeyEvent</code>.
- */
- public boolean keyUp(Event evt, int key)
- {
- return false;
- }
-
- /**
- * AWT 1.0 action event processor.
- *
- * @deprecated Deprecated in favor of the <code>ActionListener</code>
- * interface.
- */
- public boolean action(Event evt, Object what)
- {
- return false;
- }
-
- /**
- * Called to inform this component it has been added to a container.
- * A native peer - if any - is created at this time. This method is
- * called automatically by the AWT system and should not be called by
- * user level code.
- */
- public void addNotify()
- {
- if (peer == null)
- peer = getToolkit().createComponent(this);
-
- /* Now that all the children has gotten their peers, we should
- have the event mask needed for this component and its
- lightweight subcomponents. */
-
- peer.setEventMask(eventMask);
-
- /* We do not invalidate here, but rather leave that job up to
- the peer. For efficiency, the peer can choose not to
- invalidate if it is happy with the current dimensions,
- etc. */
- }
-
- /**
- * Called to inform this component is has been removed from its
- * container. Its native peer - if any - is destroyed at this time.
- * This method is called automatically by the AWT system and should
- * not be called by user level code.
- */
- public void removeNotify()
- {
- if (peer != null)
- peer.dispose();
- peer = null;
- }
-
- /** @deprecated */
- public boolean gotFocus(Event evt, Object what)
- {
- return false;
- }
-
- /** @deprecated */
- public boolean lostFocus(Event evt, Object what)
- {
- return false;
- }
-
- /**
- * Tests whether or not this component is in the group that can
- * be traversed using the keyboard traversal mechanism (such as the TAB
- * key).
- *
- * @return <code>true</code> if the component is traversed via the TAB
- * key, <code>false</code> otherwise.
- */
- public boolean isFocusTraversable()
- {
- return enabled && visible && (peer == null || peer.isFocusTraversable ());
- }
-
- /**
- * Requests that this component be given focus. The <code>gotFocus()</code>
- * method on this event will be called when and if this request was
- * successful.
- */
- public void requestFocus()
- {
- // If there's no peer then this component can't get the focus. We
- // treat it as a silent rejection of the request.
- if (peer != null)
- peer.requestFocus ();
- }
-
- // This method is used to implement transferFocus().
- // CHILD is the child making the request.
- // This is overridden by Container; when called for an ordinary
- // component there is no child and so we always return null.
- Component findNextFocusComponent (Component child)
- {
- return null;
- }
-
- /**
- * Transfers focus to the next component in the focus traversal order.
- */
- public void transferFocus()
- {
- Component next;
- if (parent == null)
- next = findNextFocusComponent (null);
- else
- next = parent.findNextFocusComponent (this);
- if (next != null && next != this)
- next.requestFocus ();
- }
-
- /**
- * AWT 1.0 focus event processor.
- *
- * @deprecated Deprecated in favor of <code>transferFocus()</code>.
- */
- public void nextFocus()
- {
- transferFocus();
- }
-
- /** @since 1.2 */
- public boolean hasFocus()
- {
- return hasFocus;
- }
-
- /**
- * Adds the specified popup menu to this component.
- *
- * @param menu The popup menu to be added.
- */
- public synchronized void add(PopupMenu popup)
- {
- if (popups == null)
- popups = new Vector();
- popups.addElement(popup);
- }
-
- /**
- * Removes the specified popup menu from this component.
- *
- * @param menu The popup menu to remove.
- */
- public synchronized void remove(MenuComponent popup)
- {
- popups.removeElement(popup);
- }
-
- /**
- * Returns a debugging string representing this component.
- *
- * @return A string representing this component.
- */
- protected String paramString()
- {
- StringBuffer param = new StringBuffer();
- String name = getName();
- if (name != null)
- {
- param.append(name);
- param.append(",");
- }
- param.append(width);
- param.append("x");
- param.append(height);
- param.append("+");
- param.append(x);
- param.append("+");
- param.append(y);
-
- if (!isValid())
- param.append(",invalid");
- if (!isVisible())
- param.append(",invisible");
- if (!isEnabled())
- param.append(",disabled");
- if (!isOpaque())
- param.append(",translucent");
- if (isDoubleBuffered())
- param.append(",doublebuffered");
-
- return param.toString();
- }
-
- /**
- * Returns a string representation of this component.
- *
- * @return A string representation of this component
- */
- public String toString()
- {
- return this.getClass().getName() + "[" + paramString() + "]";
- }
-
- /**
- * Prints a listing of this component to the standard output.
- */
- public void list ()
- {
- list (System.out, 0);
- }
-
- /**
- * Prints a listing of this component to the specified print stream.
- *
- * @param stream The <code>PrintStream</code> to print to.
- */
- public void list (PrintStream out)
- {
- list (out, 0);
- }
-
- /**
- * Prints a listing of this component to the specified print stream,
- * starting at the specified indentation point.
- *
- * @param stream The <code>PrintStream</code> to print to.
- * @param indent The indentation point.
- */
- public void list (PrintStream out, int indent)
- {
- for (int i = 0; i < indent; ++i)
- out.print (' ');
- out.println (toString ());
- }
-
- /**
- * Prints a listing of this component to the specified print writer.
- *
- * @param writer The <code>PrintWrinter</code> to print to.
- */
- public void list (PrintWriter out)
- {
- list (out, 0);
- }
-
- /**
- * Prints a listing of this component to the specified print writer,
- * starting at the specified indentation point.
- *
- * @param writer The <code>PrintWriter</code> to print to.
- * @param indent The indentation point.
- */
- public void list (PrintWriter out, int indent)
- {
- for (int i = 0; i < indent; ++i)
- out.print (' ');
- out.println (toString ());
- }
-
- public void addPropertyChangeListener(PropertyChangeListener listener)
- {
- if (changeSupport == null)
- changeSupport = new PropertyChangeSupport(this);
- changeSupport.addPropertyChangeListener(listener);
- }
-
- public void removePropertyChangeListener(PropertyChangeListener listener)
- {
- if (changeSupport != null)
- changeSupport.removePropertyChangeListener(listener);
- }
-
- public void addPropertyChangeListener(String propertyName,
- PropertyChangeListener listener)
- {
- if (changeSupport == null)
- changeSupport = new PropertyChangeSupport(this);
- changeSupport.addPropertyChangeListener(propertyName, listener);
- }
-
- public void removePropertyChangeListener(String propertyName,
- PropertyChangeListener listener)
- {
- if (changeSupport != null)
- changeSupport.removePropertyChangeListener(propertyName, listener);
- }
-
- protected void firePropertyChange(String propertyName, Object oldValue,
- Object newValue)
- {
- if (changeSupport != null)
- changeSupport.firePropertyChange(propertyName, oldValue, newValue);
- }
-
- public void setComponentOrientation(ComponentOrientation o)
- {
- orientation = o;
- }
-
- public ComponentOrientation getComponentOrientation()
- {
- return orientation;
- }
-
- /*
- public AccessibleContext getAccessibleContext()
- {
- return accessibleContext;
- }
- */
-
-/**
- * AWT 1.0 focus event processor.
- *
- * @deprecated Deprecated in favor of <code>processFocusEvent</code>.
-
-public boolean
-gotFocus(Event event, Object what)
-{
- return(true);
-}
-*/
-
-/**
- * AWT 1.0 focus event processor.
- *
- * @deprecated Deprecated in favor of <code>processFocusEvent</code>.
-
-public boolean
-lostFocus(Event event, Object what)
-{
- return(true);
-}
-*/
-
-}
projects / msp430-gcc.git / blobdiff