AWT/Swing merge from GNU Classpath.

From-SVN: r56147

1 files changed, 321 insertions, 0 deletions

diff --git a/libjava/javax/accessibility/AccessibleComponent.java b/libjava/javax/accessibility/AccessibleComponent.java
new file mode 100644
index 0000000..7634eb5
--- /dev/null
+++ b/libjava/javax/accessibility/AccessibleComponent.java
@@ -0,0 +1,321 @@
+/* AccessibleComponent.java -- aids in accessibly rendering Java components
+   Copyright (C) 2000, 2001, 2002 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., 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 javax.accessibility;
+
+import java.awt.Color;
+import java.awt.Cursor;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.event.FocusListener;
+
+/**
+ * Objects which are to be rendered to a screen as part of a graphical
+ * user interface should implement this interface.  Accessibility
+ * software can use the implementations of this interface to determine
+ * and set the screen representation for an object.
+ *
+ * <p>The <code>AccessibleContext.getAccessibleComponent()</code> method
+ * should return <code>null</code> if an object does not implement this
+ * interface.
+ *
+ * @author Eric Blake <ebb9@email.byu.edu>
+ * @see Accessible
+ * @see AccessibleContext
+ * @see AccessibleContext#getAccessibleComponent()
+ * @since 1.2
+ * @status updated to 1.4
+ */
+public interface AccessibleComponent
+{
+  /**
+   * Get the background color of this component.
+   *
+   * @return the background color of this component, or null if not supported
+   * @see #setBackground(Color)
+   */
+  Color getBackground();
+
+  /**
+   * Set the background color of this component to the specified color.
+   *
+   * @param color the color to set the background to
+   * @see #getBackground()
+   */
+  void setBackground(Color color);
+
+  /**
+   * Get the foreground color of this component.
+   *
+   * @return the foreground color of this component, or null if not supported
+   * @see #setForeground(Color)
+   */
+  Color getForeground();
+
+  /**
+   * Set the foreground color of this component.
+   *
+   * @param color the color to set the foreground to
+   * @see #getForeground()
+   */
+  void setForeground(Color color);
+
+  /**
+   * Get the cursor of this component.
+   *
+   * @return the Cursor of this component, or null if not supported
+   * @see #setCursor(Cursor)
+   */
+  Cursor getCursor();
+
+  /**
+   * Set the cursor of the component.
+   *
+   * @param cursor the graphical representation of the cursor to use
+   * @see #getCursor()
+   */
+  void setCursor(Cursor cursor);
+
+  /**
+   * Get the font of this component
+   *
+   * @return the font of the component, or null if not supported
+   * @see setFont(Font)
+   */
+  Font getFont();
+
+  /**
+   * Set the font of this component.
+   *
+   * @param font the font to use
+   * @see #getFont()
+   */
+  void setFont(Font font);
+
+  /**
+   * Get the <code>FontMetrics</code> of the specified font in this component.
+   *
+   * @param font the specified font
+   * @return the metrics for the specified font, or null if not supported
+   * @throws NullPointerException if font is null
+   * @see #getFont()
+   */
+  FontMetrics getFontMetrics(Font font);
+
+  /**
+   * Indicates whether or not this component is enabled. An object which is
+   * enabled also has AccessibleState.ENABLED in its StateSet.
+   *
+   * @return true if the component is enabled
+   * @see #setEnabled(boolean)
+   * @see AccessibleContext#getAccessibleStateSet()
+   * @see AccessibleState#ENABLED
+   */
+  boolean isEnabled();
+
+  /**
+   * Set this component to an enabled or disabled state.
+   *
+   * @param b true to enable the component, else disable it
+   * @see #isEnabled()
+   */
+  void setEnabled(boolean b);
+
+  /**
+   * Indicates whether or not this component is visible or intends to be
+   * visible although one of its ancestors may not be. An object which is
+   * visible also has AccessibleState.VISIBLE in its StateSet. Check
+   * <code>isShowing()</code> to see if the object is on screen.
+   *
+   * @return true if the component is visible
+   * @see #setVisible(boolean)
+   * @see AccessibleContext#getAccessibleStateSet()
+   * @see AccessibleState#VISIBLE
+   */
+  boolean isVisible();
+
+  /**
+   * Set the visible state of this component.
+   *
+   * @param b true to make the component visible, else hide it
+   * @see #isVisible()
+   */
+  void setVisible(boolean b);
+
+  /**
+   * Indicates whether or not this component is visible by checking
+   * the visibility of this component and its ancestors. The component may
+   * be hidden on screen by another component like pop-up help. An object
+   * which is showing on screen also has AccessibleState.SHOWING in its
+   * StateSet.
+   *
+   * @return true if component and ancestors are visible
+   * @see #isVisible()
+   * @see #setVisible(boolean)
+   * @see AccessibleContext#getAccessibleStateSet()
+   * @see AccessibleState#SHOWING
+   */
+  boolean isShowing();
+
+  /**
+   * Tests whether or not the specified point is contained within
+   * this component.  The coordinates are specified relative to this
+   * component's coordinate system.
+   *
+   * @param point the Point to locate
+   * @return true if the point is within this component
+   * @throws NullPointerException if point is null
+   * @see #getBounds()
+   */
+  boolean contains(Point point);
+
+  /**
+   * Get the location of this component in the screen's coordinate space.
+   * The point specified is the top-left corner of this component.
+   *
+   * @return the location on screen, or null if off-screen
+   * @see #getBounds()
+   * @see #getLocation()
+   */
+  Point getLocationOnScreen();
+
+  /**
+   * Get the location of this component in the parent's coordinate system.
+   * The point specified is the top-left corner of this component.
+   *
+   * @return the location in the parent on screen, or null if off-screen
+   * @see #getBounds()
+   * @see #getLocationOnScreen()
+   * @see #setLocation(Point)
+   */
+  Point getLocation();
+
+  /**
+   * Set the location of this component relative to its parent.  The point
+   * specified represents the top-left corner of this component.
+   *
+   * @param point the top-left corner of this component relative to the parent
+   * @throws NullPointerException if point is null
+   * @see #getLocation()
+   */
+  void setLocation(Point point);
+
+  /**
+   * Get the bounds of this component relative to its parent - it's width,
+   * height, and relative location to its parent.
+   *
+   * @return the bounds of this component, or null if not on screen
+   * @see #contains(Point)
+   */
+  Rectangle getBounds();
+
+  /**
+   * Set the bounds of this component to the specified height and width, and
+   * relative location to its parent.
+   *
+   * @param rectangle the new height, width, and relative location
+   * @throws NullPointerException if rectangle is null
+   */
+  void setBounds(Rectangle rectangle);
+
+  /**
+   * Get the size of this component - it's width and height.
+   *
+   * @return the dimensions of this component, or null if not on screen
+   * @see #setSize(Dimension)
+   */
+  Dimension getSize();
+
+  /**
+   * Set the size of this component to the given dimensions.
+   *
+   * @param dimension the new size of the component
+   * @throws NullPointerException if dimension is null
+   * @see #getSize()
+   */
+  void setSize(Dimension dimension);
+
+  /**
+   * If an object exists at the specified point which is a child of this
+   * parent component, and it is accessible, then it is returned.
+   *
+   * @param point the location within this component's coordinate system
+   * @return the accessible child object at that point, or null
+   */
+  Accessible getAccessibleAt(Point point);
+
+  /**
+   * Indicates whether or not this component can accept focus. An object
+   * which can accept focus also has AccessibleState.FOCUSABLE in its
+   * StateSet.
+   *
+   * @return true if the component can accept focus
+   * @see AccessibleContext#getAccessibleStateSet()
+   * @see AccessibleState#FOCUSABLE
+   * @see AccessibleState#FOCUSED
+   */
+  boolean isFocusTraversable();
+
+  /**
+   * If this method is called this component will attempt to gain focus,
+   * but if it cannot accept focus nothing happens. On success, the StateSet
+   * will contain AccessibleState.FOCUSED
+   *
+   * @see #isFocusTraversable()
+   * @see AccessibleState#FOCUSED
+   */
+  void requestFocus();
+
+  /**
+   * Adds the specified listener to this component.
+   *
+   * @param listener the listener to add to this component
+   * @see #removeFocusListener(FocusListener)
+   */
+  void addFocusListener(FocusListener listener);
+
+  /**
+   * Removes the specified listener from this component.
+   *
+   * @param listener the listener to remove
+   * @see #addFocusListener(FocusListener)
+   */
+  void removeFocusListener(FocusListener listener);
+} // interface AccessibleComponent