// Copyright 2000-2014, FreeHEP.
package org.freehep.graphics2d;
import java.awt.AlphaComposite;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Composite;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.Image;
import java.awt.Paint;
import java.awt.Polygon;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.Stroke;
import java.awt.Transparency;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ImageObserver;
import java.awt.image.RenderedImage;
import java.awt.image.renderable.RenderableImage;
import java.awt.print.PrinterGraphics;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.text.AttributedCharacterIterator;
import java.util.HashMap;
import java.util.Map;
import org.freehep.graphics2d.font.FontEncoder;
/**
* @author Charles Loomis
* @author Mark Donszelmann
* @version $Id:
* freehep-graphics2d/src/main/java/org/freehep/graphics2d/PixelGraphics2D
* .java f827db4cd880 2006/12/04 22:27:37 duns $
*/
public class PixelGraphics2D extends AbstractVectorGraphics {
public final static RenderingHints.Key KEY_SYMBOL_BLIT = new SymbolBlitKey();
public final static Object VALUE_SYMBOL_BLIT_ON = Boolean.TRUE;
public final static Object VALUE_SYMBOL_BLIT_OFF = Boolean.FALSE;
static class SymbolBlitKey extends RenderingHints.Key {
public SymbolBlitKey() {
super(94025);
}
public boolean isCompatibleValue(Object o) {
if (o.equals(VALUE_SYMBOL_BLIT_ON))
return true;
if (o.equals(VALUE_SYMBOL_BLIT_OFF))
return true;
return false;
}
public String toString() {
return "Symbol Blitting enable key";
}
}
// The host graphics context.
protected Graphics2D hostGraphics;
protected double lineWidth;
protected int resolution;
// tag handler
protected GenericTagHandler tagHandler;
// fast symbol handling, FIXME: does not work for fillAndDraw
private static final int MAX_BLIT_SIZE = 32;
private static Map /* <color, Image[fill][symbol][size]> */<WebColor, Image[][][]> symbols;
private WebColor webColor;
// graphics environment stuff
private static boolean displayLocal;
static {
symbols = new HashMap<WebColor, Image[][][]>();
displayLocal = false;
try {
String className = System.getProperty("java.awt.graphicsenv");
if (className != null) {
Class<?> clazz = Class.forName(className);
Method method = clazz.getMethod("isDisplayLocal");
if (Modifier.isStatic(method.getModifiers())) {
// JDK 1.6
displayLocal = (Boolean) method.invoke(null);
} else {
try {
// since JDK 1.7
displayLocal = (Boolean) method.invoke(clazz
.newInstance());
} catch (InstantiationException e) {
}
}
}
} catch (ClassNotFoundException e) {
// Windows case...
displayLocal = true;
} catch (Throwable e) {
// Sun api may change, so we don't know what errors are possible.
// Ignore them all.
}
}
public PixelGraphics2D(Graphics graphics) {
this();
setHostGraphics(graphics);
}
/**
*/
protected PixelGraphics2D(PixelGraphics2D graphics) {
super(graphics);
setHostGraphics(graphics.hostGraphics.create());
}
/**
* Constructor for the case that you only know the hostgraphics later on.
* NOTE: make sure you call setHostGraphics afterwards.
*/
protected PixelGraphics2D() {
super();
}
protected void setHostGraphics(Graphics graphics) {
hostGraphics = (Graphics2D) graphics;
resolution = (graphics instanceof PrinterGraphics) ? 0 : 1;
tagHandler = new GenericTagHandler(hostGraphics);
super.setBackground(hostGraphics.getBackground());
super.setColor(hostGraphics.getColor());
super.setPaint(hostGraphics.getPaint());
super.setFont(hostGraphics.getFont());
Stroke s = hostGraphics.getStroke();
if (s instanceof BasicStroke) {
lineWidth = ((BasicStroke) s).getLineWidth();
}
webColor = WebColor.create(getColor());
setRenderingHint(KEY_SYMBOL_BLIT, VALUE_SYMBOL_BLIT_ON);
}
public void startExport() {
}
public void endExport() {
}
public void printComment(String comment) {
}
public Graphics create(double x, double y, double width, double height) {
PixelGraphics2D graphics = new PixelGraphics2D(this);
graphics.translate(x, y);
graphics.clipRect(0, 0, width, height);
return graphics;
}
// //
// The methods which follow are those necessary for the Graphics
// and Graphics2D contexts. These simply call the appropriate
// method on the underlying graphics context.
// //
public void clearRect(int x, int y, int width, int height) {
hostGraphics.clearRect(x, y, width, height);
}
public void clipRect(int x, int y, int width, int height) {
hostGraphics.clipRect(x, y, width, height);
}
public void copyArea(int x, int y, int width, int height, int dx, int dy) {
hostGraphics.copyArea(x, y, width, height, dx, dy);
}
public Graphics create() {
return new PixelGraphics2D(this);
}
public void dispose() {
hostGraphics.dispose();
}
public void drawArc(int x, int y, int width, int height, int startAngle,
int arcAngle) {
hostGraphics.drawArc(x, y, width, height, startAngle, arcAngle);
}
public boolean drawImage(Image img, int x, int y, Color bgcolor,
ImageObserver observer) {
return hostGraphics.drawImage(img, x, y, getPrintColor(bgcolor),
observer);
}
public boolean drawImage(Image img, int x, int y, ImageObserver observer) {
return hostGraphics.drawImage(img, x, y, observer);
}
public boolean drawImage(Image img, int x, int y, int width, int height,
Color bgcolor, ImageObserver observer) {
return hostGraphics.drawImage(img, x, y, width, height,
getPrintColor(bgcolor), observer);
}
public boolean drawImage(Image img, int x, int y, int width, int height,
ImageObserver observer) {
return hostGraphics.drawImage(img, x, y, width, height, observer);
}
public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2,
int sx1, int sy1, int sx2, int sy2, Color bgcolor,
ImageObserver observer) {
return hostGraphics.drawImage(img, dx1, dy1, dx2, dy2, sx1, sy1, sx2,
sy2, getPrintColor(bgcolor), observer);
}
public boolean drawImage(Image img, int dx1, int dy1, int dx2, int dy2,
int sx1, int sy1, int sx2, int sy2, ImageObserver observer) {
return hostGraphics.drawImage(img, dx1, dy1, dx2, dy2, sx1, sy1, sx2,
sy2, observer);
}
public void drawLine(int x1, int y1, int x2, int y2) {
hostGraphics.drawLine(x1, y1, x2, y2);
}
public void drawOval(int x, int y, int width, int height) {
hostGraphics.drawOval(x, y, width, height);
}
public void drawPolygon(int[] xPoints, int[] yPoints, int nPoints) {
hostGraphics.drawPolygon(xPoints, yPoints, nPoints);
}
public void drawPolygon(Polygon p) {
hostGraphics.drawPolygon(p);
}
public void drawPolyline(int[] xPoints, int[] yPoints, int nPoints) {
hostGraphics.drawPolyline(xPoints, yPoints, nPoints);
}
public void drawRect(int x, int y, int width, int height) {
hostGraphics.drawRect(x, y, width, height);
}
public void drawString(String str, int x, int y) {
str = FontEncoder.getEncodedString(str, getFont().getName());
hostGraphics.drawString(str, x, y);
}
public void fillArc(int x, int y, int width, int height, int startAngle,
int arcAngle) {
hostGraphics.fillArc(x, y, width, height, startAngle, arcAngle);
}
public void fillOval(int x, int y, int width, int height) {
hostGraphics.fillOval(x, y, width, height);
}
public void fillPolygon(int[] xPoints, int[] yPoints, int nPoints) {
hostGraphics.fillPolygon(xPoints, yPoints, nPoints);
}
public void fillPolygon(Polygon p) {
hostGraphics.fillPolygon(p);
}
public void fillRect(int x, int y, int width, int height) {
hostGraphics.fillRect(x, y, width, height);
}
public void drawSymbol(double x, double y, double size, int symbol) {
if (size <= 0)
return;
int intSize = (int) Math.ceil(size);
if ((intSize > MAX_BLIT_SIZE)
|| (lineWidth != 1.0)
|| !isDisplayLocal()
|| (getRenderingHint(RenderingHints.KEY_ANTIALIASING) == RenderingHints.VALUE_ANTIALIAS_ON)
|| (getRenderingHint(KEY_SYMBOL_BLIT) == VALUE_SYMBOL_BLIT_OFF)) {
super.drawSymbol(x, y, size, symbol);
return;
}
blitSymbol(x, y, intSize, symbol, false);
}
public void fillSymbol(double x, double y, double size, int symbol) {
if (size <= 0)
return;
int intSize = (int) Math.ceil(size);
if ((intSize > MAX_BLIT_SIZE)
|| (lineWidth != 1.0)
|| !isDisplayLocal()
|| (getRenderingHint(RenderingHints.KEY_ANTIALIASING) == RenderingHints.VALUE_ANTIALIAS_ON)
|| (getRenderingHint(KEY_SYMBOL_BLIT) == VALUE_SYMBOL_BLIT_OFF)) {
super.fillSymbol(x, y, size, symbol);
return;
}
blitSymbol(x, y, intSize, symbol, true);
}
// FIXME: overridden to avoid blitting
public void fillAndDrawSymbol(double x, double y, double size, int symbol,
Color fillColor) {
Color color = getColor();
setColor(fillColor);
super.fillSymbol(x, y, size, symbol);
setColor(color);
super.drawSymbol(x, y, size, symbol);
}
private void blitSymbol(double x, double y, int size, int symbol,
boolean fill) {
Image[][][] images = symbols.get(webColor);
if (images == null) {
images = new Image[2][NUMBER_OF_SYMBOLS][MAX_BLIT_SIZE];
symbols.put(webColor, images);
}
Image image = images[fill ? 1 : 0][symbol][size - 1];
int imageSize = size + 1;
double imageSize2 = imageSize / 2.0;
if (image == null) {
image = getDeviceConfiguration().createCompatibleImage(
imageSize + 1, imageSize + 1, Transparency.BITMASK);
VectorGraphics imageGraphics = VectorGraphics.create(image
.getGraphics());
Composite composite = imageGraphics.getComposite();
imageGraphics.setComposite(AlphaComposite.Clear);
imageGraphics.fillRect(0, 0, size, size);
imageGraphics.setComposite(composite);
imageGraphics.setColor(getColor());
if (fill) {
fillSymbol(imageGraphics, imageSize2, imageSize2, size, symbol);
} else {
drawSymbol(imageGraphics, imageSize2, imageSize2, size, symbol);
}
images[fill ? 1 : 0][symbol][size - 1] = image;
}
drawImage(image, (int) (x - imageSize2), (int) (y - imageSize2), null);
}
public void setLineWidth(double width) {
super.setLineWidth(width);
lineWidth = width;
}
public Shape getClip() {
return hostGraphics.getClip();
}
public Rectangle getClipBounds() {
return hostGraphics.getClipBounds();
}
public Rectangle getClipBounds(Rectangle r) {
return hostGraphics.getClipBounds(r);
}
public FontMetrics getFontMetrics(Font f) {
return hostGraphics.getFontMetrics(f);
}
public void setClip(int x, int y, int width, int height) {
hostGraphics.setClip(x, y, width, height);
}
public void setClip(Shape clip) {
hostGraphics.setClip(clip);
}
public void setFont(Font font) {
if (font == null)
return;
super.setFont(font);
if (font.getName().equals("Symbol")
|| font.getName().equals("ZapfDingbats")) {
Font newFont = new Font("Serif", font.getSize(), font.getStyle());
font = newFont.deriveFont(font.getSize2D());
}
hostGraphics.setFont(font);
}
public void setColor(Color color) {
if (color == null)
return;
if (color.equals(getColor()))
return;
super.setColor(color);
hostGraphics.setColor(getPrintColor(color));
webColor = WebColor.create(color);
}
public void setPaint(Paint paint) {
if (paint == null)
return;
if (paint.equals(getPaint()))
return;
if (paint instanceof Color) {
setColor((Color) paint);
} else {
super.setPaint(paint);
hostGraphics.setPaint(paint);
}
}
public void setPaintMode() {
hostGraphics.setPaintMode();
}
public void setXORMode(Color c1) {
hostGraphics.setXORMode(getPrintColor(c1));
}
public void translate(int x, int y) {
hostGraphics.translate(x, y);
}
// //
// The ones from the Graphic2D context. This overrides some
// methods defined in VectorGraphics2D by simply calling the
// underlying host graphics context.
// //
public void addRenderingHints(Map<?, ?> hints) {
hostGraphics.addRenderingHints(hints);
}
public void clip(Shape clip) {
hostGraphics.clip(clip);
}
public void draw(Shape s) {
hostGraphics.draw(s);
}
public void drawGlyphVector(GlyphVector g, float x, float y) {
hostGraphics.drawGlyphVector(g, x, y);
}
public void drawImage(BufferedImage img, BufferedImageOp op, int x, int y) {
hostGraphics.drawImage(img, op, x, y);
}
public boolean drawImage(Image img, AffineTransform xform, ImageObserver obs) {
return hostGraphics.drawImage(img, xform, obs);
}
public void drawRenderableImage(RenderableImage img, AffineTransform xform) {
hostGraphics.drawRenderableImage(img, xform);
}
public void drawRenderedImage(RenderedImage img, AffineTransform xform) {
hostGraphics.drawRenderedImage(img, xform);
}
public void drawString(AttributedCharacterIterator iterator, float x,
float y) {
hostGraphics.drawString(iterator, x, y);
}
public void drawString(AttributedCharacterIterator iterator, int x, int y) {
hostGraphics.drawString(iterator, x, y);
}
public void drawString(String str, float x, float y) {
str = FontEncoder.getEncodedString(str, getFont().getName());
hostGraphics.drawString(str, x, y);
}
public void fill(Shape s) {
hostGraphics.fill(s);
}
public Composite getComposite() {
return hostGraphics.getComposite();
}
public GraphicsConfiguration getDeviceConfiguration() {
return hostGraphics.getDeviceConfiguration();
}
public FontRenderContext getFontRenderContext() {
return hostGraphics.getFontRenderContext();
}
public Object getRenderingHint(RenderingHints.Key hintKey) {
return hostGraphics.getRenderingHint(hintKey);
}
public RenderingHints getRenderingHints() {
return hostGraphics.getRenderingHints();
}
public Stroke getStroke() {
return hostGraphics.getStroke();
}
public AffineTransform getTransform() {
return hostGraphics.getTransform();
}
public boolean hit(Rectangle rect, Shape s, boolean onStroke) {
return hostGraphics.hit(rect, s, onStroke);
}
public void rotate(double theta) {
hostGraphics.rotate(theta);
}
public void rotate(double theta, double x, double y) {
hostGraphics.rotate(theta, x, y);
}
public void scale(double sx, double sy) {
hostGraphics.scale(sx, sy);
}
public void setBackground(Color color) {
super.setBackground(color);
hostGraphics.setBackground(getPrintColor(color));
}
public void setComposite(Composite comp) {
hostGraphics.setComposite(comp);
}
public void setRenderingHint(RenderingHints.Key hintKey, Object hintValue) {
hostGraphics.setRenderingHint(hintKey, hintValue);
}
public void setRenderingHints(Map<?, ?> hints) {
hostGraphics.setRenderingHints(hints);
}
public void setStroke(Stroke s) {
hostGraphics.setStroke(s);
}
public void setTransform(AffineTransform Tx) {
hostGraphics.setTransform(Tx);
}
public void shear(double shx, double shy) {
hostGraphics.shear(shx, shy);
}
public void transform(AffineTransform Tx) {
hostGraphics.transform(Tx);
}
public void translate(double tx, double ty) {
hostGraphics.translate(tx, ty);
}
// //
// The following methods are those specific to the VectorGraphics
// interfaces, but which are simple extensions of integer method
// calls to doubles.
// //
public void clearRect(double x, double y, double width, double height) {
clearRect((int) x, (int) y, (int) width, (int) height);
}
public void clipRect(double x, double y, double width, double height) {
clipRect((int) x, (int) y, (int) width, (int) height);
}
public void drawString(String str, double x, double y) {
drawString(str, (int) Math.round(x), (int) Math.round(y));
}
public void setClip(double x, double y, double width, double height) {
setClip(new Rectangle2D.Double(x, y, width, height));
}
public String toString() {
return "PixelGraphics2D[" + hostGraphics.toString() + "]";
}
public static boolean isDisplayLocal() {
return displayLocal;
}
/**
* Implementation of createShape makes sure that the points are different by
* at least one pixel.
*/
protected Shape createShape(double[] xPoints, double[] yPoints,
int nPoints, boolean close) {
return new ArrayPath(xPoints, yPoints, nPoints, close, resolution);
}
/*
* protected GeneralPath createShape(double[] xPoints, double[] yPoints, int
* nPoints, boolean close) { GeneralPath path = new
* GeneralPath(GeneralPath.WIND_EVEN_ODD); if (nPoints > 0) {
* path.moveTo((float)xPoints[0], (float)yPoints[0]); double lastX =
* xPoints[0]; double lastY = yPoints[0]; if (close &&
* (Math.abs(xPoints[nPoints-1] - lastX) < resolution) &&
* (Math.abs(yPoints[nPoints-1] - lastY) < resolution)) { nPoints--; } for
* (int i = 1; i < nPoints; i++) { if ((Math.abs(xPoints[i] - lastX) >
* resolution) || (Math.abs(yPoints[i] - lastY) > resolution)) {
* path.lineTo((float)xPoints[i], (float)yPoints[i]); lastX = xPoints[i];
* lastY = yPoints[i]; } } if (close) path.closePath(); } return path; }
*/
}