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/* Copyright (C) 2000 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package gnu.awt.j2d;
import java.awt.Color;
import java.awt.Image;
import java.awt.Shape;
import java.awt.Rectangle;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.image.ImageObserver;
/**
* Base class for graphics state objects (State pattern, GOF book)
* that represents the current pipeline configuration. The Graphics2D
* object forwards most of the requests to the state object. The
* Graphics2D object itself only administers properties that are not
* specific for a certain state.
*/
public abstract class AbstractGraphicsState implements Cloneable
{
Graphics2DImpl frontend;
public void setFrontend(Graphics2DImpl frontend)
{
this.frontend = frontend;
}
public void dispose()
{
frontend = null;
}
// -------- Graphics methods:
public abstract void setColor(Color color);
public abstract void setPaintMode();
public abstract void setXORMode(Color altColor);
public abstract void setFont(Font font);
public abstract FontMetrics getFontMetrics(Font font);
public abstract void setClip(Shape clip);
public abstract Shape getClip();
public abstract Rectangle getClipBounds();
public abstract void copyArea(int x, int y,
int width, int height,
int dx, int dy);
public abstract void drawLine(int x1, int y1,
int x2, int y2);
public abstract void fillRect(int x, int y,
int width, int height);
public abstract void clearRect(int x, int y,
int width, int height);
public abstract void drawRoundRect(int x, int y,
int width, int height,
int arcWidth, int arcHeight);
public abstract void fillRoundRect(int x, int y,
int width, int height,
int arcWidth, int arcHeight);
public abstract void drawOval(int x, int y,
int width, int height);
public abstract void fillOval(int x, int y,
int width, int height);
public abstract void drawArc(int x, int y,
int width, int height,
int startAngle, int arcAngle);
public abstract void fillArc(int x, int y,
int width, int height,
int startAngle, int arcAngle);
public abstract void drawPolyline(int[] xPoints, int[] yPoints,int nPoints);
public abstract void drawPolygon(int[] xPoints, int[] yPoints, int nPoints);
public abstract void fillPolygon(int[] xPoints, int[] yPoints, int nPoints);
public abstract boolean drawImage(Image image, int x, int y,
ImageObserver observer);
// -------- Graphics2D methods:
public abstract void draw(Shape shape);
public abstract void fill(Shape shape);
public abstract boolean hit(Rectangle rect, Shape text, boolean onStroke);
public abstract void drawString(String text, int x, int y);
public abstract void drawString(String text, float x, float y);
public abstract void translate(int x, int y);
public abstract void translate(double tx, double ty);
public abstract void rotate(double theta);
public abstract void rotate(double theta, double x, double y);
public abstract void scale(double scaleX, double scaleY);
public abstract void shear(double shearX, double shearY);
}
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