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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/gnu/awt/j2d/AbstractGraphicsState.java
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+/* Copyright (C) 2000, 2001 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);
+
+ public Object clone ()
+ {
+ try
+ {
+ return super.clone ();
+ }
+ catch (CloneNotSupportedException ex)
+ {
+ // This should never happen.
+ throw new InternalError ();
+ }
+ }
+}