/* DebugGraphics.java --
   Copyright (C) 2002, 2004, 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;

import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.image.ImageObserver;
import java.io.PrintStream;
import java.text.AttributedCharacterIterator;


/**
 * DebugGraphics
 * @author	Andrew Selkirk
 * @version	1.0
 */
public class DebugGraphics extends Graphics
{
  /**
   * LOG_OPTION
   */
  public static final int LOG_OPTION = 1;

  /**
   * FLASH_OPTION
   */
  public static final int FLASH_OPTION = 2;

  /**
   * BUFFERED_OPTION
   */
  public static final int BUFFERED_OPTION = 4;

  /**
   * NONE_OPTION
   */
  public static final int NONE_OPTION = -1;

  static Color debugFlashColor = Color.RED;
  static int debugFlashCount = 10;
  static int debugFlashTime = 1000;
  static PrintStream debugLogStream = System.out;

  /**
   * graphics
   */
  Graphics graphics;

  /**
   * color
   */
  Color color = Color.BLACK;
  
  /**
   * buffer
   */
  Image buffer;

  /**
   * debugOptions
   */
  int debugOptions;

  /**
   * graphicsID
   */
  int graphicsID;

  /**
   * xOffset
   */
  int xOffset;

  /**
   * yOffset
   */
  int yOffset;

  /**
   * Creates a <code>DebugGraphics</code> object.
   */
  public DebugGraphics()
  {
    // TODO
  }

  /**
   * Creates a <code>DebugGraphics</code> object.
   *
   * @param graphics The <code>Graphics</code> object to wrap
   * @param component TODO
   */
  public DebugGraphics(Graphics graphics, JComponent component)
  {
    this.graphics = graphics;
    // FIXME: What shall we do with component ?
  }

  /**
   * Creates a <code>DebugGraphics</code> object.
   *
   * @param graphics The <code>Graphics</code> object to wrap
   */
  public DebugGraphics(Graphics graphics)
  {
    this.graphics = graphics;
  }

  /**
   * Sets the color to draw stuff with.
   * 
   * @param color The color
   */
  public void setColor(Color color)
  {
    this.color = color;
  }

  /**
   * Creates a overrides <code>Graphics.create</code> to create a
   * <code>DebugGraphics</code> object.
   *
   * @return a new <code>DebugGraphics</code> object.
   */
  public Graphics create()
  {
    return new DebugGraphics(graphics.create());
  }

  /**
   * Creates a overrides <code>Graphics.create</code> to create a
   * <code>DebugGraphics</code> object.
   *
   * @param x the x coordinate
   * @param y the y coordinate
   * @param width the width
   * @param height the height
   *
   * @return a new <code>DebugGraphics</code> object.
   */
  public Graphics create(int x, int y, int width, int height)
  {
    return new DebugGraphics(graphics.create(x, y, width, height));
  }

  /**
   * flashColor
   *
   * @return Color
   */
  public static Color flashColor()
  {
    return debugFlashColor;
  }

  /**
   * setFlashColor
   *
   * @param color the color to use for flashing
   */
  public static void setFlashColor(Color color)
  {
    debugFlashColor = color;
  }

  /**
   * flashTime
   *
   * @return The time in milliseconds
   */
  public static int flashTime()
  {
    return debugFlashTime;
  }

  /**
   * setFlashTime
   *
   * @param time The time in milliseconds
   */
  public static void setFlashTime(int time)
  {
    debugFlashTime = time;
  }

  /**
   * flashCount
   *
   * @return The number of flashes
   */
  public static int flashCount()
  {
    return debugFlashCount;
  }

  /**
   * setFlashCount
   *
   * @param count The number of flashes
   */
  public static void setFlashCount(int count)
  {
    debugFlashCount = count;
  }

  /**
   * logStream
   *
   * @return The <code>PrintStream</code> to write logging messages to
   */
  public static PrintStream logStream()
  {
    return debugLogStream;
  }

  /**
   * setLogStream
   *
   * @param stream The currently set <code>PrintStream</code>.
   */
  public static void setLogStream(PrintStream stream)
  {
    debugLogStream = stream;
  }

  /**
   * getFont
   *
   * @return The font
   */
  public Font getFont()
  {
    return graphics.getFont();
  }

  /**
   * setFont
   *
   * @param font The font to use for drawing text
   */
  public void setFont(Font font)
  {
    graphics.setFont(font);
  }

  /**
   * Returns the color used for drawing.
   * 
   * @return The color.
   */
  public Color getColor()
  {
    return color;
  }

  /**
   * Returns the font metrics of the current font.
   *
   * @return a <code>FontMetrics</code> object
   */
  public FontMetrics getFontMetrics()
  {
    return graphics.getFontMetrics();
  }

  /**
   * Returns the font metrics for a given font.
   *
   * @param font the font to get the metrics for
   *
   * @return a <code>FontMetrics</code> object
   */
  public FontMetrics getFontMetrics(Font font)
  {
    return graphics.getFontMetrics(font);
  }

  /**
   * translate
   *
   * @param x the x coordinate
   * @param y the y coordinate
   */
  public void translate(int x, int y)
  {
    graphics.translate(x, y);
  }

  /**
   * setPaintMode
   */
  public void setPaintMode()
  {
    graphics.setPaintMode();
  }

  /**
   * setXORMode
   *
   * @param color the color
   */
  public void setXORMode(Color color)
  {
    graphics.setXORMode(color);
  }

  /**
   * getClipBounds
   *
   * @return Rectangle
   */
  public Rectangle getClipBounds()
  {
    return graphics.getClipBounds();
  }

  /**
   * Intersects the current clip region with the given region.
   *
   * @param x The x-position of the region
   * @param y The y-position of the region
   * @param width The width of the region
   * @param height The height of the region
   */
  public void clipRect(int x, int y, int width, int height)
  {
    graphics.clipRect(x, y, width, height);
  }

  /**
   * Sets the clipping region.
   *
   * @param x The x-position of the region
   * @param y The y-position of the region
   * @param width The width of the region
   * @param height The height of the region
   */
  public void setClip(int x, int y, int width, int height)
  {
    graphics.setClip(x, y, width, height);
  }

  /**
   * Returns the current clipping region.
   *
   * @return Shape
   */
  public Shape getClip()
  {
    return graphics.getClip();
  }

  /**
   * Sets the current clipping region
   *
   * @param shape The clippin region
   */
  public void setClip(Shape shape)
  {
    graphics.setClip(shape);
  }

  private void sleep(int milliseconds)
  {
    try
      {
        Thread.sleep(milliseconds);
      }
    catch (InterruptedException e)
      {
        // Ignore this.
      }
  }
  
  /**
   * Draws a rectangle.
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   */
  public void drawRect(int x, int y, int width, int height)
  {
    for (int index = 0; index < (debugFlashCount - 1); ++index)
      {
        graphics.setColor(color);
        graphics.drawRect(x, y, width, height);
        sleep(debugFlashTime);

        graphics.setColor(debugFlashColor);
        graphics.drawRect(x, y, width, height);
        sleep(debugFlashTime);
      }

    graphics.setColor(color);
    graphics.drawRect(x, y, width, height);
  }

  /**
   * Draws a filled rectangle.
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   */
  public void fillRect(int x, int y, int width, int height)
  {
    for (int index = 0; index < (debugFlashCount - 1); ++index)
      {
        graphics.setColor(color);
        graphics.fillRect(x, y, width, height);
        sleep(debugFlashTime);

        graphics.setColor(debugFlashColor);
        graphics.fillRect(x, y, width, height);
        sleep(debugFlashTime);
      }

    graphics.setColor(color);
    graphics.fillRect(x, y, width, height);
  }

  /**
   * clearRect
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   */
  public void clearRect(int x, int y, int width, int height)
  {
    graphics.clearRect(x, y, width, height);
  }

  /**
   * drawRoundRect
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   * @param arcWidth TODO
   * @param arcHeight TODO
   */
  public void drawRoundRect(int x, int y, int width, int height, 
			    int arcWidth, int arcHeight)
  {
    graphics.drawRoundRect(x, y, width, height, arcWidth, arcHeight);
  }

  /**
   * fillRoundRect
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   * @param arcWidth TODO
   * @param arcHeight TODO
   */
  public void fillRoundRect(int x, int y, int width, int height, 
			    int arcWidth, int arcHeight)
  {
    graphics.fillRoundRect(x, y, width, height, arcWidth, arcHeight);
  }

  /**
   * drawLine
   *
   * @param x1 The x-position of the start 
   * @param y1 The y-position of the start
   * @param x2 The x-position of the end
   * @param y2 The y-position of the end
   */
  public void drawLine(int x1, int y1, int x2, int y2)
  {
    graphics.drawLine(x1, y1, x2, y2);
  }

  /**
   * draw3DRect
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   * @param raised TODO
   */
  public void draw3DRect(int x, int y, int width, int height, boolean raised)
  {
    graphics.draw3DRect(x, y, width, height, raised);
  }

  /**
   * fill3DRect
   *
   * @param x The x-position of the rectangle
   * @param y The y-position of the rectangle
   * @param width The width of the rectangle
   * @param height The height of the rectangle
   * @param raised TODO
   */
  public void fill3DRect(int x, int y, int width, int height, boolean raised)
  {
    graphics.fill3DRect(x, y, width, height, raised);
  }

  /**
   * drawOval
   *
   * @param x the x coordinate
   * @param y the y coordiante
   * @param width the width
   * @param height the height
   */
  public void drawOval(int x, int y, int width, int height)
  {
    graphics.drawOval(x, y, width, height);
  }

  /**
   * fillOval
   *
   * @param x the x coordinate
   * @param y the y coordinate
   * @param width the width
   * @param height the height
   */
  public void fillOval(int x, int y, int width, int height)
  {
    graphics.fillOval(x, y, width, height);
  }

  /**
   * drawArc
   *
   * @param x the x coordinate
   * @param y the y coordinate
   * @param width the width
   * @param height the height
   * @param startAngle TODO
   * @param arcAngle TODO
   */
  public void drawArc(int x, int y, int width, int height, 
		      int startAngle, int arcAngle)
  {
    graphics.drawArc(x, y, width, height, startAngle, arcAngle);
  }

  /**
   * fillArc
   *
   * @param x the coordinate
   * @param y the y coordinate
   * @param width the width
   * @param height the height
   * @param startAngle TODO
   * @param arcAngle TODO
   */
  public void fillArc(int x, int y, int width, int height, 
		      int startAngle, int arcAngle)
  {
    graphics.fillArc(x, y, width, height, startAngle, arcAngle);
  }

  /**
   * drawPolyline
   *
   * @param xpoints TODO
   * @param ypoints TODO
   * @param npoints TODO
   */
  public void drawPolyline(int[] xpoints, int[] ypoints, int npoints)
  {
    graphics.drawPolyline(xpoints, ypoints, npoints);
  }

  /**
   * drawPolygon
   *
   * @param xpoints TODO
   * @param ypoints TODO
   * @param npoints TODO
   */
  public void drawPolygon(int[] xpoints, int[] ypoints, int npoints)
  {
    graphics.drawPolygon(xpoints, ypoints, npoints);
  }

  /**
   * fillPolygon
   *
   * @param xpoints TODO
   * @param ypoints TODO
   * @param npoints TODO
   */
  public void fillPolygon(int[] xpoints, int[] ypoints, int npoints)
  {
    graphics.fillPolygon(xpoints, ypoints, npoints);
  }

  /**
   * drawString
   *
   * @param string the string
   * @param x the x coordinate
   * @param y the y coordinate
   */
  public void drawString(String string, int x, int y)
  {
    graphics.drawString(string, x, y);
  }

  /**
   * drawString
   *
   * @param iterator TODO
   * @param x the x coordinate
   * @param y the y coordinate
   */
  public void drawString(AttributedCharacterIterator iterator,
			 int x, int y)
  {
    graphics.drawString(iterator, x, y);
  }

  /**
   * drawBytes
   * 
   * @param data TODO
   * @param offset TODO
   * @param length TODO
   * @param x the x coordinate
   * @param y the y coordinate
   */
  public void drawBytes(byte[] data, int offset, int length,
			int x, int y)
  {
    graphics.drawBytes(data, offset, length, x, y);
  }

  /**
   * drawChars
   * 
   * @param data array of characters to draw
   * @param offset offset in array
   * @param length number of characters in array to draw
   * @param x x-position
   * @param y y-position
   */
  public void drawChars(char[] data, int offset, int length, 
			int x, int y)
  {
    for (int index = 0; index < (debugFlashCount - 1); ++index)
      {
        graphics.setColor(color);
        graphics.drawChars(data, offset, length, x, y);
        sleep(debugFlashTime);

        graphics.setColor(debugFlashColor);
        graphics.drawChars(data, offset, length, x, y);
        sleep(debugFlashTime);
      }

    graphics.setColor(color);
    graphics.drawChars(data, offset, length, x, y);
  }

  /**
   * drawImage
   *
   * @param image The image to draw
   * @param x The x position
   * @param y The y position
   * @param observer The image observer
   * @return boolean
   */
  public boolean drawImage(Image image, int x, int y,
			   ImageObserver observer)
  {
    return graphics.drawImage(image, x, y, observer);
  }

  /**
   * drawImage
   * 
   * @param image The image to draw
   * @param x The x position
   * @param y The y position
   * @param width The width of the area to draw the image
   * @param height The height of the area to draw the image
   * @param observer The image observer
   *
   * @return boolean
   */
  public boolean drawImage(Image image, int x, int y, int width, 
			   int height, ImageObserver observer)
  {
    return graphics.drawImage(image, x, y, width, height, observer);
  }

  /**
   * drawImage
   * 
   * @param image The image to draw
   * @param x The x position
   * @param y The y position
   * @param background The color for the background in the opaque regions
   * of the image
   * @param observer The image observer
   *
   * @return boolean
   */
  public boolean drawImage(Image image, int x, int y, 
			   Color background, ImageObserver observer)
  {
    return graphics.drawImage(image, x, y, background, observer);
  }

  /**
   * drawImage
   * 
   * @param image The image to draw
   * @param x The x position
   * @param y The y position
   * @param width The width of the area to draw the image
   * @param height The height of the area to draw the image
   * @param background The color for the background in the opaque regions
   * of the image
   * @param observer The image observer
   *
   * @return boolean
   */
  public boolean drawImage(Image image, int x, int y, int width, int height, 
			   Color background, ImageObserver observer)
  {
    return graphics.drawImage(image, x, y, width, height, background, observer);
  }

  /**
   * drawImage
   * 
   * @param image The image to draw
   * @param dx1 TODO
   * @param dy1 TODO
   * @param dx2 TODO
   * @param dy2 TODO
   * @param sx1 TODO
   * @param sy1 TODO
   * @param sx2 TODO
   * @param sy2 TODO
   * @param observer The image observer
   * 
   * @return boolean
   */
  public boolean drawImage(Image image, int dx1, int dy1,
			   int dx2, int dy2, int sx1, int sy1, int sx2, int sy2,
			   ImageObserver observer)
  {
    return graphics.drawImage(image, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, observer);
  }

  /**
   * drawImage
   *
   * @param image The image to draw
   * @param dx1 TODO
   * @param dy1 TODO
   * @param dx2 TODO
   * @param dy2 TODO
   * @param sx1 TODO
   * @param sy1 TODO
   * @param sx2 TODO
   * @param sy2 TODO
   * @param background The color for the background in the opaque regions
   * of the image
   * @param observer The image observer
   *
   * @return boolean
   */
  public boolean drawImage(Image image, int dx1, int dy1,
			   int dx2, int dy2, int sx1, int sy1, int sx2, int sy2,
			   Color background, ImageObserver observer)
  {
    return graphics.drawImage(image, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, background, observer);
  }

  /**
   * copyArea
   *
   * @param x The x position of the source area
   * @param y The y position of the source area
   * @param width The width of the area
   * @param height The height of the area
   * @param destx The x position of the destination area
   * @param desty The y posiiton of the destination area
   */
  public void copyArea(int x, int y, int width, int height, 
		       int destx, int desty)
  {
    graphics.copyArea(x, y, width, height, destx, desty);
  }

  /**
   * Releases all system resources that this <code>Graphics</code> is using.
   */
  public void dispose()
  {
    graphics.dispose();
    graphics = null;
  }

  /**
   * isDrawingBuffer
   *
   * @return boolean
   */
  public boolean isDrawingBuffer()
  {
    return false; // TODO
  }

  /**
   * setDebugOptions
   *
   * @param options the debug options
   */
  public void setDebugOptions(int options)
  {
    debugOptions = options;
  }

  /**
   * getDebugOptions
   *
   * @return the debug options
   */
  public int getDebugOptions()
  {
    return debugOptions;
  }
}
