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1 files changed, 483 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/plaf/metal/MetalScrollButton.java b/libjava/classpath/javax/swing/plaf/metal/MetalScrollButton.java
new file mode 100644
index 000000000..3273908b3
--- /dev/null
+++ b/libjava/classpath/javax/swing/plaf/metal/MetalScrollButton.java
@@ -0,0 +1,483 @@
+/* MetalScrollButton.java
+   Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package javax.swing.plaf.metal;
+
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Rectangle;
+
+import javax.swing.SwingUtilities;
+import javax.swing.plaf.basic.BasicArrowButton;
+
+/**
+ * A button used by the {@link MetalScrollBarUI}.  The button appearance
+ * varies according to the button direction, whether or not it is part of a
+ * "free standing" scroll bar, and the current state of the button.
+ */
+public class MetalScrollButton extends BasicArrowButton
+{
+
+  /**
+   * The maximum size for buttons.
+   * @see #getMaximumSize()
+   */
+  private static Dimension maximumSize;
+
+  /** The width of the button. */
+  private int buttonWidth;
+
+  /**
+   * A flag that indicates whether the button is part of a free standing
+   * scroll bar.  This affects how the border is drawn.
+   */
+  private boolean freeStanding;
+
+  /**
+   * Creates a new button.
+   *
+   * @param direction  the direction (this should be one of {@link #NORTH},
+   *                   {@link #SOUTH}, {@link #EAST} and {@link #WEST}, but
+   *                   this is not enforced).
+   * @param width  the button width.
+   * @param freeStanding  a flag indicating whether the scroll button is free
+   *                      standing or not.
+   */
+  public MetalScrollButton(int direction, int width, boolean freeStanding)
+  {
+    super(direction);
+    buttonWidth = width;
+    this.freeStanding = freeStanding;
+    setFocusable(false);
+  }
+
+  /**
+   * Returns the button width.
+   *
+   * @return The button width.
+   */
+  public int getButtonWidth()
+  {
+    return buttonWidth;
+  }
+
+  /**
+   * Sets the free standing flag.  This controls how the button border is
+   * drawn.
+   *
+   * @param freeStanding  the new value of the flag.
+   */
+  public void setFreeStanding(boolean freeStanding)
+  {
+    this.freeStanding = freeStanding;
+  }
+
+  /**
+   * Paints the button.
+   *
+   * @param g  the graphics device.
+   */
+  public void paint(Graphics g)
+  {
+    Rectangle bounds = SwingUtilities.getLocalBounds(this);
+
+    // fill the background
+    if (getModel().isPressed())
+      g.setColor(MetalLookAndFeel.getControlShadow());
+    else
+      g.setColor(MetalLookAndFeel.getControl());
+    g.fillRect(0, 0, bounds.width, bounds.height);
+
+    paintArrow(g, bounds.width, bounds.height);
+
+    // paint a border manually - I tried using a real (custom) Border
+    // but couldn't get it to stay set for the button, something was
+    // overwriting it...
+    if (freeStanding)
+      {
+        if (direction == WEST)
+          paintWestBorderFreeStanding(g, bounds.width, bounds.height);
+        else if (direction == EAST)
+          paintEastBorderFreeStanding(g, bounds.width, bounds.height);
+        else if (direction == SOUTH)
+          paintSouthBorderFreeStanding(g, bounds.width, bounds.height);
+        else // asume NORTH
+          paintNorthBorderFreeStanding(g, bounds.width, bounds.height);
+      }
+    else
+      {
+        if (direction == WEST)
+          paintWestBorder(g, bounds.width, bounds.height);
+        else if (direction == EAST)
+          paintEastBorder(g, bounds.width, bounds.height);
+        else if (direction == SOUTH)
+          paintSouthBorder(g, bounds.width, bounds.height);
+        else // asume NORTH
+          paintNorthBorder(g, bounds.width, bounds.height);
+      }
+  }
+
+  private void paintArrow(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      g.setColor(MetalLookAndFeel.getBlack());
+    else
+      g.setColor(MetalLookAndFeel.getControlDisabled());
+
+    if (direction == SOUTH)
+      {
+        int x = w / 2;
+        int y = h / 2 + 2;
+        for (int i = 1; i < 5; i++)
+          g.drawLine(x - i, y - i, x + i - 1, y - i);
+      }
+    else if (direction == EAST)
+      {
+        int x = w / 2 + 2;
+        int y = h / 2;
+        for (int i = 1; i < 5; i++)
+          g.drawLine(x - i, y - i, x - i, y + i - 1);
+      }
+    else if (direction == WEST)
+      {
+        int x = w / 2 - 3;
+        int y = h / 2;
+        for (int i = 1; i < 5; i++)
+          g.drawLine(x + i, y - i, x + i, y + i - 1);
+      }
+    else // assume NORTH
+      {
+        int x = w / 2;
+        int y = h / 2 - 3;
+        for (int i = 1; i < 5; i++)
+          g.drawLine(x - i, y + i, x + i - 1, y + i);
+      }
+  }
+  /**
+   * Paints the border for a button with a {@link #NORTH} direction that
+   * belongs to a free standing scroll bar.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintNorthBorderFreeStanding(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, w - 2, 0);
+        g.drawLine(0, 0, 0, h - 1);
+        g.drawLine(2, h - 1, w - 2, h - 1);
+        g.drawLine(w - 2, 2, w - 2, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(1, 1, 1, h - 2);
+        g.drawLine(1, 1, w - 3, 1);
+        g.drawLine(w - 1, 1, w - 1, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControl());
+        g.drawLine(1, h - 1, 1, h - 1);
+        g.drawLine(w - 2, 1, w - 2, 1);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, w - 1, 0);
+        g.drawLine(w - 1, 0, w - 1, h - 1);
+        g.drawLine(0, 0, 0, h - 1);
+      }
+  }
+
+  /**
+   * Paints the border for a button with a {@link #SOUTH} direction that
+   * belongs to a free standing scroll bar.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintSouthBorderFreeStanding(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, w - 2, 0);
+        g.drawLine(0, 0, 0, h - 1);
+        g.drawLine(2, h - 1, w - 2, h - 1);
+        g.drawLine(w - 2, 2, w - 2, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(1, 1, 1, h - 1);
+        g.drawLine(1, 1, w - 1, 1);
+        g.drawLine(w - 1, 1, w - 1, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControl());
+        g.drawLine(1, h - 1, 1, h - 1);
+        g.drawLine(w - 1, 1, w - 1, 1);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, h - 1, w - 1, h - 1);
+        g.drawLine(w - 1, 0, w - 1, h - 1);
+        g.drawLine(0, 0, 0, h - 1);
+      }
+  }
+
+  /**
+   * Paints the border for a button with an {@link #EAST} direction that
+   * belongs to a free standing scroll bar.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintEastBorderFreeStanding(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, w - 2, 0);
+        g.drawLine(w - 2, 0, w - 2, h - 2);
+        g.drawLine(0, h - 2, w - 2, h - 2);
+
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(0, 1, w - 1, 1);
+        g.drawLine(w - 1, 1, w - 1, h - 1);
+        g.drawLine(0, h - 1, w - 1, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControl());
+        g.drawLine(w - 2, 1, w - 2, 1);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, w - 1, 0);
+        g.drawLine(w - 1, 0, w - 1, h - 1);
+        g.drawLine(0, h - 1, w - 1, h - 1);
+      }
+  }
+
+  /**
+   * Paints the border for a button with a {@link #WEST} direction that
+   * belongs to a free standing scroll bar.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintWestBorderFreeStanding(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, w - 1, 0);
+        g.drawLine(0, 0, 0, h - 2);
+        g.drawLine(0, h - 2, w - 1, h - 2);
+
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(1, 1, w - 1, 1);
+        g.drawLine(1, 1, 1, h - 1);
+        g.drawLine(1, h - 1, w - 1, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControl());
+        g.drawLine(1, h - 2, 1, h - 2);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, w - 1, 0);
+        g.drawLine(0, 0, 0, h - 1);
+        g.drawLine(0, h - 1, w - 1, h - 1);
+      }
+  }
+
+  /**
+   * Paints the border for a button with a {@link #NORTH} direction that
+   * belongs to a scroll bar that is not free standing.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintNorthBorder(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, 0, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(1, 0, 1, h - 1);
+        g.drawLine(1, 0, w - 1, 0);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, 0, h - 1);
+      }
+  }
+
+  /**
+   * Paints the border for a button with a {@link #SOUTH} direction that
+   * belongs to a scroll bar that is not free standing.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintSouthBorder(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, 0, h - 1);
+        g.drawLine(0, h - 1, w - 1, h - 1);
+
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(1, 0, 1, h - 1);
+        g.drawLine(1, 0, w - 1, 0);
+
+        g.setColor(MetalLookAndFeel.getControl());
+        g.drawLine(1, h - 1, 1, h - 1);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, 0, h - 1);
+      }
+  }
+
+  /**
+   * Paints the border for a button with an {@link #EAST} direction that
+   * belongs to a scroll bar that is not free standing.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintEastBorder(Graphics g, int w, int h)
+  {
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, w - 1, 0);
+        g.drawLine(w - 1, 2, w - 1, h - 1);
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(0, 1, w - 2, 1);
+        g.drawLine(0, 1, 0, h - 1);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, w - 1, 0);
+      }
+  }
+
+  /**
+   * Paints the border for a button with a {@link #WEST} direction that
+   * belongs to a scroll bar that is not free standing.
+   *
+   * @param g  the graphics device.
+   * @param w  the button width.
+   * @param h  the button height.
+   */
+  private void paintWestBorder(Graphics g, int w, int h)
+  {
+    Rectangle bounds = SwingUtilities.getLocalBounds(this);
+    if (isEnabled())
+      {
+        g.setColor(MetalLookAndFeel.getControlDarkShadow());
+        g.drawLine(0, 0, bounds.width - 1, 0);
+        g.setColor(MetalLookAndFeel.getControlHighlight());
+        g.drawLine(0, 1, bounds.width - 1, 1);
+        g.drawLine(0, 1, 0, bounds.height - 1);
+      }
+    else
+      {
+        g.setColor(MetalLookAndFeel.getControlDisabled());
+        g.drawLine(0, 0, bounds.width - 1, 0);
+      }
+  }
+
+  /**
+   * Returns the preferred size for the button, which varies depending on
+   * the direction of the button and whether or not it is free standing.
+   *
+   * @return The preferred size.
+   */
+  public Dimension getPreferredSize()
+  {
+    int adj = 1;
+    if (!freeStanding)
+      adj = 2;
+
+    if (direction == EAST)
+      return new Dimension(buttonWidth - adj, buttonWidth);
+    else if (direction == WEST)
+      return new Dimension(buttonWidth - 2, buttonWidth);
+    else if (direction == SOUTH)
+      return new Dimension(buttonWidth, buttonWidth - adj);
+    else // assume NORTH
+      return new Dimension(buttonWidth, buttonWidth - 2);
+  }
+
+  /**
+   * Returns the minimum size for the button.
+   *
+   * @return The minimum size for the button.
+   */
+  public Dimension getMinimumSize()
+  {
+    return getPreferredSize();
+  }
+
+  /**
+   * Returns the maximum size for the button.
+   *
+   * @return <code>Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE)</code>.
+   */
+  public Dimension getMaximumSize()
+  {
+    if (maximumSize == null)
+      maximumSize = new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
+    return maximumSize;
+  }
+
+}