1158 lines
52 KiB
Java
1158 lines
52 KiB
Java
/*
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* Copyright (c) 2000, 2007, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.print;
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import java.awt.Color;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.Image;
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import java.awt.Polygon;
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import java.awt.Rectangle;
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import java.awt.Shape;
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import java.awt.image.ImageObserver;
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import java.text.AttributedCharacterIterator;
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/**
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* Implements the Graphics API but does all
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* rendering through a second Graphics instance.
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* The primary use of this class is to provide
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* a Graphics instance without the 2D API to
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* an application, but to implement the rendering
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* with a Graphics2D instance.
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*/
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public class ProxyGraphics extends Graphics {
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/**
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* The Graphics instance that performs the
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* drawing for this Graphics.
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*/
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private Graphics g;
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public ProxyGraphics(Graphics graphics) {
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g = graphics;
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}
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Graphics getGraphics() {
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return g;
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}
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/**
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* Creates a new <code>Graphics</code> object that is
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* a copy of this <code>Graphics</code> object.
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* @return a new graphics context that is a copy of
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* this graphics context.
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*/
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public Graphics create() {
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return new ProxyGraphics(g.create());
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}
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/**
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* Creates a new <code>Graphics</code> object based on this
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* <code>Graphics</code> object, but with a new translation and clip area.
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* The new <code>Graphics</code> object has its origin
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* translated to the specified point (<i>x</i>, <i>y</i>).
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* Its clip area is determined by the intersection of the original
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* clip area with the specified rectangle. The arguments are all
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* interpreted in the coordinate system of the original
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* <code>Graphics</code> object. The new graphics context is
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* identical to the original, except in two respects:
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* <p>
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* <ul>
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* <li>
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* The new graphics context is translated by (<i>x</i>, <i>y</i>).
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* That is to say, the point (<code>0</code>, <code>0</code>) in the
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* new graphics context is the same as (<i>x</i>, <i>y</i>) in
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* the original graphics context.
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* <li>
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* The new graphics context has an additional clipping rectangle, in
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* addition to whatever (translated) clipping rectangle it inherited
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* from the original graphics context. The origin of the new clipping
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* rectangle is at (<code>0</code>, <code>0</code>), and its size
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* is specified by the <code>width</code> and <code>height</code>
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* arguments.
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* </ul>
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* <p>
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* @param x the <i>x</i> coordinate.
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* @param y the <i>y</i> coordinate.
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* @param width the width of the clipping rectangle.
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* @param height the height of the clipping rectangle.
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* @return a new graphics context.
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* @see java.awt.Graphics#translate
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* @see java.awt.Graphics#clipRect
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*/
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public Graphics create(int x, int y, int width, int height) {
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return new ProxyGraphics(g.create(x, y, width, height));
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}
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/**
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* Translates the origin of the graphics context to the point
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* (<i>x</i>, <i>y</i>) in the current coordinate system.
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* Modifies this graphics context so that its new origin corresponds
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* to the point (<i>x</i>, <i>y</i>) in this graphics context's
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* original coordinate system. All coordinates used in subsequent
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* rendering operations on this graphics context will be relative
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* to this new origin.
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* @param x the <i>x</i> coordinate.
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* @param y the <i>y</i> coordinate.
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*/
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public void translate(int x, int y) {
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g.translate(x, y);
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}
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/**
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* Gets this graphics context's current color.
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* @return this graphics context's current color.
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* @see java.awt.Color
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* @see java.awt.Graphics#setColor
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*/
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public Color getColor() {
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return g.getColor();
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}
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/**
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* Sets this graphics context's current color to the specified
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* color. All subsequent graphics operations using this graphics
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* context use this specified color.
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* @param c the new rendering color.
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* @see java.awt.Color
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* @see java.awt.Graphics#getColor
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*/
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public void setColor(Color c) {
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g.setColor(c);
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}
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/**
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* Sets the paint mode of this graphics context to overwrite the
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* destination with this graphics context's current color.
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* This sets the logical pixel operation function to the paint or
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* overwrite mode. All subsequent rendering operations will
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* overwrite the destination with the current color.
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*/
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public void setPaintMode() {
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g.setPaintMode();
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}
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/**
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* Sets the paint mode of this graphics context to alternate between
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* this graphics context's current color and the new specified color.
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* This specifies that logical pixel operations are performed in the
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* XOR mode, which alternates pixels between the current color and
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* a specified XOR color.
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* <p>
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* When drawing operations are performed, pixels which are the
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* current color are changed to the specified color, and vice versa.
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* <p>
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* Pixels that are of colors other than those two colors are changed
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* in an unpredictable but reversible manner; if the same figure is
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* drawn twice, then all pixels are restored to their original values.
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* @param c1 the XOR alternation color
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*/
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public void setXORMode(Color c1) {
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g.setXORMode(c1);
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}
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/**
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* Gets the current font.
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* @return this graphics context's current font.
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* @see java.awt.Font
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* @see java.awt.Graphics#setFont
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*/
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public Font getFont() {
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return g.getFont();
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}
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/**
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* Sets this graphics context's font to the specified font.
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* All subsequent text operations using this graphics context
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* use this font.
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* @param font the font.
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* @see java.awt.Graphics#getFont
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* @see java.awt.Graphics#drawString(java.lang.String, int, int)
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* @see java.awt.Graphics#drawBytes(byte[], int, int, int, int)
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* @see java.awt.Graphics#drawChars(char[], int, int, int, int)
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*/
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public void setFont(Font font) {
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g.setFont(font);
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}
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/**
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* Gets the font metrics of the current font.
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* @return the font metrics of this graphics
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* context's current font.
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* @see java.awt.Graphics#getFont
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* @see java.awt.FontMetrics
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* @see java.awt.Graphics#getFontMetrics(Font)
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*/
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public FontMetrics getFontMetrics() {
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return g.getFontMetrics();
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}
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/**
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* Gets the font metrics for the specified font.
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* @return the font metrics for the specified font.
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* @param f the specified font
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* @see java.awt.Graphics#getFont
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* @see java.awt.FontMetrics
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* @see java.awt.Graphics#getFontMetrics()
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*/
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public FontMetrics getFontMetrics(Font f) {
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return g.getFontMetrics(f);
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}
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/**
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* Returns the bounding rectangle of the current clipping area.
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* This method refers to the user clip, which is independent of the
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* clipping associated with device bounds and window visibility.
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* If no clip has previously been set, or if the clip has been
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* cleared using <code>setClip(null)</code>, this method returns
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* <code>null</code>.
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* The coordinates in the rectangle are relative to the coordinate
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* system origin of this graphics context.
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* @return the bounding rectangle of the current clipping area,
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* or <code>null</code> if no clip is set.
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* @see java.awt.Graphics#getClip
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* @see java.awt.Graphics#clipRect
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* @see java.awt.Graphics#setClip(int, int, int, int)
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* @see java.awt.Graphics#setClip(Shape)
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* @since JDK1.1
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*/
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public Rectangle getClipBounds() {
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return g.getClipBounds();
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}
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/**
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* Intersects the current clip with the specified rectangle.
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* The resulting clipping area is the intersection of the current
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* clipping area and the specified rectangle. If there is no
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* current clipping area, either because the clip has never been
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* set, or the clip has been cleared using <code>setClip(null)</code>,
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* the specified rectangle becomes the new clip.
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* This method sets the user clip, which is independent of the
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* clipping associated with device bounds and window visibility.
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* This method can only be used to make the current clip smaller.
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* To set the current clip larger, use any of the setClip methods.
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* Rendering operations have no effect outside of the clipping area.
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* @param x the x coordinate of the rectangle to intersect the clip with
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* @param y the y coordinate of the rectangle to intersect the clip with
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* @param width the width of the rectangle to intersect the clip with
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* @param height the height of the rectangle to intersect the clip with
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* @see #setClip(int, int, int, int)
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* @see #setClip(Shape)
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*/
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public void clipRect(int x, int y, int width, int height) {
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g.clipRect(x, y, width, height);
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}
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/**
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* Sets the current clip to the rectangle specified by the given
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* coordinates. This method sets the user clip, which is
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* independent of the clipping associated with device bounds
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* and window visibility.
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* Rendering operations have no effect outside of the clipping area.
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* @param x the <i>x</i> coordinate of the new clip rectangle.
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* @param y the <i>y</i> coordinate of the new clip rectangle.
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* @param width the width of the new clip rectangle.
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* @param height the height of the new clip rectangle.
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* @see java.awt.Graphics#clipRect
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* @see java.awt.Graphics#setClip(Shape)
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* @since JDK1.1
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*/
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public void setClip(int x, int y, int width, int height) {
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g.setClip(x, y, width, height);
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}
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/**
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* Gets the current clipping area.
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* This method returns the user clip, which is independent of the
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* clipping associated with device bounds and window visibility.
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* If no clip has previously been set, or if the clip has been
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* cleared using <code>setClip(null)</code>, this method returns
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* <code>null</code>.
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* @return a <code>Shape</code> object representing the
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* current clipping area, or <code>null</code> if
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* no clip is set.
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* @see java.awt.Graphics#getClipBounds
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* @see java.awt.Graphics#clipRect
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* @see java.awt.Graphics#setClip(int, int, int, int)
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* @see java.awt.Graphics#setClip(Shape)
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* @since JDK1.1
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*/
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public Shape getClip() {
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return g.getClip();
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}
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/**
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* Sets the current clipping area to an arbitrary clip shape.
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* Not all objects that implement the <code>Shape</code>
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* interface can be used to set the clip. The only
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* <code>Shape</code> objects that are guaranteed to be
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* supported are <code>Shape</code> objects that are
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* obtained via the <code>getClip</code> method and via
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* <code>Rectangle</code> objects. This method sets the
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* user clip, which is independent of the clipping associated
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* with device bounds and window visibility.
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* @param clip the <code>Shape</code> to use to set the clip
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* @see java.awt.Graphics#getClip()
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* @see java.awt.Graphics#clipRect
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* @see java.awt.Graphics#setClip(int, int, int, int)
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* @since JDK1.1
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*/
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public void setClip(Shape clip) {
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g.setClip(clip);
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}
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/**
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* Copies an area of the component by a distance specified by
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* <code>dx</code> and <code>dy</code>. From the point specified
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* by <code>x</code> and <code>y</code>, this method
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* copies downwards and to the right. To copy an area of the
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* component to the left or upwards, specify a negative value for
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* <code>dx</code> or <code>dy</code>.
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* If a portion of the source rectangle lies outside the bounds
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* of the component, or is obscured by another window or component,
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* <code>copyArea</code> will be unable to copy the associated
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* pixels. The area that is omitted can be refreshed by calling
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* the component's <code>paint</code> method.
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* @param x the <i>x</i> coordinate of the source rectangle.
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* @param y the <i>y</i> coordinate of the source rectangle.
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* @param width the width of the source rectangle.
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* @param height the height of the source rectangle.
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* @param dx the horizontal distance to copy the pixels.
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* @param dy the vertical distance to copy the pixels.
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*/
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public void copyArea(int x, int y, int width, int height,
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int dx, int dy) {
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g.copyArea(x, y, width, height, dx, dy);
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}
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/**
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* Draws a line, using the current color, between the points
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* <code>(x1, y1)</code> and <code>(x2, y2)</code>
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* in this graphics context's coordinate system.
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* @param x1 the first point's <i>x</i> coordinate.
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* @param y1 the first point's <i>y</i> coordinate.
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* @param x2 the second point's <i>x</i> coordinate.
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* @param y2 the second point's <i>y</i> coordinate.
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*/
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public void drawLine(int x1, int y1, int x2, int y2) {
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g.drawLine(x1, y1, x2, y2);
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}
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/**
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* Fills the specified rectangle.
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* The left and right edges of the rectangle are at
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* <code>x</code> and <code>x + width - 1</code>.
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* The top and bottom edges are at
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* <code>y</code> and <code>y + height - 1</code>.
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* The resulting rectangle covers an area
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* <code>width</code> pixels wide by
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* <code>height</code> pixels tall.
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* The rectangle is filled using the graphics context's current color.
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* @param x the <i>x</i> coordinate
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* of the rectangle to be filled.
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* @param y the <i>y</i> coordinate
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* of the rectangle to be filled.
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* @param width the width of the rectangle to be filled.
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* @param height the height of the rectangle to be filled.
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* @see java.awt.Graphics#clearRect
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* @see java.awt.Graphics#drawRect
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*/
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public void fillRect(int x, int y, int width, int height) {
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g.fillRect(x, y, width, height);
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}
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/**
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* Draws the outline of the specified rectangle.
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* The left and right edges of the rectangle are at
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* <code>x</code> and <code>x + width</code>.
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* The top and bottom edges are at
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* <code>y</code> and <code>y + height</code>.
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* The rectangle is drawn using the graphics context's current color.
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* @param x the <i>x</i> coordinate
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* of the rectangle to be drawn.
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* @param y the <i>y</i> coordinate
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* of the rectangle to be drawn.
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* @param width the width of the rectangle to be drawn.
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* @param height the height of the rectangle to be drawn.
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* @see java.awt.Graphics#fillRect
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* @see java.awt.Graphics#clearRect
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*/
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public void drawRect(int x, int y, int width, int height) {
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g.drawRect(x, y, width, height);
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}
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/**
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* Clears the specified rectangle by filling it with the background
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* color of the current drawing surface. This operation does not
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* use the current paint mode.
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* <p>
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* Beginning with Java 1.1, the background color
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* of offscreen images may be system dependent. Applications should
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* use <code>setColor</code> followed by <code>fillRect</code> to
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* ensure that an offscreen image is cleared to a specific color.
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* @param x the <i>x</i> coordinate of the rectangle to clear.
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* @param y the <i>y</i> coordinate of the rectangle to clear.
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* @param width the width of the rectangle to clear.
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* @param height the height of the rectangle to clear.
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* @see java.awt.Graphics#fillRect(int, int, int, int)
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* @see java.awt.Graphics#drawRect
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* @see java.awt.Graphics#setColor(java.awt.Color)
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* @see java.awt.Graphics#setPaintMode
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* @see java.awt.Graphics#setXORMode(java.awt.Color)
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*/
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public void clearRect(int x, int y, int width, int height) {
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g.clearRect(x, y, width, height);
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}
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/**
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* Draws an outlined round-cornered rectangle using this graphics
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* context's current color. The left and right edges of the rectangle
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* are at <code>x</code> and <code>x + width</code>,
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* respectively. The top and bottom edges of the rectangle are at
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* <code>y</code> and <code>y + height</code>.
|
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* @param x the <i>x</i> coordinate of the rectangle to be drawn.
|
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* @param y the <i>y</i> coordinate of the rectangle to be drawn.
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* @param width the width of the rectangle to be drawn.
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* @param height the height of the rectangle to be drawn.
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* @param arcWidth the horizontal diameter of the arc
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* at the four corners.
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* @param arcHeight the vertical diameter of the arc
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* at the four corners.
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* @see java.awt.Graphics#fillRoundRect
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*/
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public void drawRoundRect(int x, int y, int width, int height,
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int arcWidth, int arcHeight) {
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g.drawRoundRect(x, y, width, height, arcWidth, arcHeight);
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}
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|
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/**
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* Fills the specified rounded corner rectangle with the current color.
|
|
* The left and right edges of the rectangle
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|
* are at <code>x</code> and <code>x + width - 1</code>,
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* respectively. The top and bottom edges of the rectangle are at
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|
* <code>y</code> and <code>y + height - 1</code>.
|
|
* @param x the <i>x</i> coordinate of the rectangle to be filled.
|
|
* @param y the <i>y</i> coordinate of the rectangle to be filled.
|
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* @param width the width of the rectangle to be filled.
|
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* @param height the height of the rectangle to be filled.
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* @param arcWidth the horizontal diameter
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* of the arc at the four corners.
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* @param arcHeight the vertical diameter
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* of the arc at the four corners.
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* @see java.awt.Graphics#drawRoundRect
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*/
|
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public void fillRoundRect(int x, int y, int width, int height,
|
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int arcWidth, int arcHeight) {
|
|
g.fillRoundRect(x, y, width, height, arcWidth, arcHeight);
|
|
}
|
|
|
|
/**
|
|
* Draws a 3-D highlighted outline of the specified rectangle.
|
|
* The edges of the rectangle are highlighted so that they
|
|
* appear to be beveled and lit from the upper left corner.
|
|
* <p>
|
|
* The colors used for the highlighting effect are determined
|
|
* based on the current color.
|
|
* The resulting rectangle covers an area that is
|
|
* <code>width + 1</code> pixels wide
|
|
* by <code>height + 1</code> pixels tall.
|
|
* @param x the <i>x</i> coordinate of the rectangle to be drawn.
|
|
* @param y the <i>y</i> coordinate of the rectangle to be drawn.
|
|
* @param width the width of the rectangle to be drawn.
|
|
* @param height the height of the rectangle to be drawn.
|
|
* @param raised a boolean that determines whether the rectangle
|
|
* appears to be raised above the surface
|
|
* or sunk into the surface.
|
|
* @see java.awt.Graphics#fill3DRect
|
|
*/
|
|
public void draw3DRect(int x, int y, int width, int height,
|
|
boolean raised) {
|
|
g.draw3DRect(x, y, width, height, raised);
|
|
}
|
|
|
|
/**
|
|
* Paints a 3-D highlighted rectangle filled with the current color.
|
|
* The edges of the rectangle will be highlighted so that it appears
|
|
* as if the edges were beveled and lit from the upper left corner.
|
|
* The colors used for the highlighting effect will be determined from
|
|
* the current color.
|
|
* @param x the <i>x</i> coordinate of the rectangle to be filled.
|
|
* @param y the <i>y</i> coordinate of the rectangle to be filled.
|
|
* @param width the width of the rectangle to be filled.
|
|
* @param height the height of the rectangle to be filled.
|
|
* @param raised a boolean value that determines whether the
|
|
* rectangle appears to be raised above the surface
|
|
* or etched into the surface.
|
|
* @see java.awt.Graphics#draw3DRect
|
|
*/
|
|
public void fill3DRect(int x, int y, int width, int height,
|
|
boolean raised) {
|
|
g.fill3DRect(x, y, width, height, raised);
|
|
}
|
|
|
|
/**
|
|
* Draws the outline of an oval.
|
|
* The result is a circle or ellipse that fits within the
|
|
* rectangle specified by the <code>x</code>, <code>y</code>,
|
|
* <code>width</code>, and <code>height</code> arguments.
|
|
* <p>
|
|
* The oval covers an area that is
|
|
* <code>width + 1</code> pixels wide
|
|
* and <code>height + 1</code> pixels tall.
|
|
* @param x the <i>x</i> coordinate of the upper left
|
|
* corner of the oval to be drawn.
|
|
* @param y the <i>y</i> coordinate of the upper left
|
|
* corner of the oval to be drawn.
|
|
* @param width the width of the oval to be drawn.
|
|
* @param height the height of the oval to be drawn.
|
|
* @see java.awt.Graphics#fillOval
|
|
*/
|
|
public void drawOval(int x, int y, int width, int height) {
|
|
g.drawOval(x, y, width, height);
|
|
}
|
|
|
|
/**
|
|
* Fills an oval bounded by the specified rectangle with the
|
|
* current color.
|
|
* @param x the <i>x</i> coordinate of the upper left corner
|
|
* of the oval to be filled.
|
|
* @param y the <i>y</i> coordinate of the upper left corner
|
|
* of the oval to be filled.
|
|
* @param width the width of the oval to be filled.
|
|
* @param height the height of the oval to be filled.
|
|
* @see java.awt.Graphics#drawOval
|
|
*/
|
|
public void fillOval(int x, int y, int width, int height) {
|
|
g.fillOval(x, y, width, height);
|
|
}
|
|
|
|
/**
|
|
* Draws the outline of a circular or elliptical arc
|
|
* covering the specified rectangle.
|
|
* <p>
|
|
* The resulting arc begins at <code>startAngle</code> and extends
|
|
* for <code>arcAngle</code> degrees, using the current color.
|
|
* Angles are interpreted such that 0 degrees
|
|
* is at the 3 o'clock position.
|
|
* A positive value indicates a counter-clockwise rotation
|
|
* while a negative value indicates a clockwise rotation.
|
|
* <p>
|
|
* The center of the arc is the center of the rectangle whose origin
|
|
* is (<i>x</i>, <i>y</i>) and whose size is specified by the
|
|
* <code>width</code> and <code>height</code> arguments.
|
|
* <p>
|
|
* The resulting arc covers an area
|
|
* <code>width + 1</code> pixels wide
|
|
* by <code>height + 1</code> pixels tall.
|
|
* <p>
|
|
* The angles are specified relative to the non-square extents of
|
|
* the bounding rectangle such that 45 degrees always falls on the
|
|
* line from the center of the ellipse to the upper right corner of
|
|
* the bounding rectangle. As a result, if the bounding rectangle is
|
|
* noticeably longer in one axis than the other, the angles to the
|
|
* start and end of the arc segment will be skewed farther along the
|
|
* longer axis of the bounds.
|
|
* @param x the <i>x</i> coordinate of the
|
|
* upper-left corner of the arc to be drawn.
|
|
* @param y the <i>y</i> coordinate of the
|
|
* upper-left corner of the arc to be drawn.
|
|
* @param width the width of the arc to be drawn.
|
|
* @param height the height of the arc to be drawn.
|
|
* @param startAngle the beginning angle.
|
|
* @param arcAngle the angular extent of the arc,
|
|
* relative to the start angle.
|
|
* @see java.awt.Graphics#fillArc
|
|
*/
|
|
public void drawArc(int x, int y, int width, int height,
|
|
int startAngle, int arcAngle) {
|
|
g.drawArc(x, y, width, height, startAngle, arcAngle);
|
|
}
|
|
|
|
/**
|
|
* Fills a circular or elliptical arc covering the specified rectangle.
|
|
* <p>
|
|
* The resulting arc begins at <code>startAngle</code> and extends
|
|
* for <code>arcAngle</code> degrees.
|
|
* Angles are interpreted such that 0 degrees
|
|
* is at the 3 o'clock position.
|
|
* A positive value indicates a counter-clockwise rotation
|
|
* while a negative value indicates a clockwise rotation.
|
|
* <p>
|
|
* The center of the arc is the center of the rectangle whose origin
|
|
* is (<i>x</i>, <i>y</i>) and whose size is specified by the
|
|
* <code>width</code> and <code>height</code> arguments.
|
|
* <p>
|
|
* The resulting arc covers an area
|
|
* <code>width + 1</code> pixels wide
|
|
* by <code>height + 1</code> pixels tall.
|
|
* <p>
|
|
* The angles are specified relative to the non-square extents of
|
|
* the bounding rectangle such that 45 degrees always falls on the
|
|
* line from the center of the ellipse to the upper right corner of
|
|
* the bounding rectangle. As a result, if the bounding rectangle is
|
|
* noticeably longer in one axis than the other, the angles to the
|
|
* start and end of the arc segment will be skewed farther along the
|
|
* longer axis of the bounds.
|
|
* @param x the <i>x</i> coordinate of the
|
|
* upper-left corner of the arc to be filled.
|
|
* @param y the <i>y</i> coordinate of the
|
|
* upper-left corner of the arc to be filled.
|
|
* @param width the width of the arc to be filled.
|
|
* @param height the height of the arc to be filled.
|
|
* @param startAngle the beginning angle.
|
|
* @param arcAngle the angular extent of the arc,
|
|
* relative to the start angle.
|
|
* @see java.awt.Graphics#drawArc
|
|
*/
|
|
public void fillArc(int x, int y, int width, int height,
|
|
int startAngle, int arcAngle) {
|
|
|
|
g.fillArc(x, y, width, height, startAngle, arcAngle);
|
|
}
|
|
|
|
/**
|
|
* Draws a sequence of connected lines defined by
|
|
* arrays of <i>x</i> and <i>y</i> coordinates.
|
|
* Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point.
|
|
* The figure is not closed if the first point
|
|
* differs from the last point.
|
|
* @param xPoints an array of <i>x</i> points
|
|
* @param yPoints an array of <i>y</i> points
|
|
* @param nPoints the total number of points
|
|
* @see java.awt.Graphics#drawPolygon(int[], int[], int)
|
|
* @since JDK1.1
|
|
*/
|
|
public void drawPolyline(int xPoints[], int yPoints[],
|
|
int nPoints) {
|
|
g.drawPolyline(xPoints, yPoints, nPoints);
|
|
}
|
|
|
|
/**
|
|
* Draws a closed polygon defined by
|
|
* arrays of <i>x</i> and <i>y</i> coordinates.
|
|
* Each pair of (<i>x</i>, <i>y</i>) coordinates defines a point.
|
|
* <p>
|
|
* This method draws the polygon defined by <code>nPoint</code> line
|
|
* segments, where the first <code>nPoint - 1</code>
|
|
* line segments are line segments from
|
|
* <code>(xPoints[i - 1], yPoints[i - 1])</code>
|
|
* to <code>(xPoints[i], yPoints[i])</code>, for
|
|
* 1 ≤ <i>i</i> ≤ <code>nPoints</code>.
|
|
* The figure is automatically closed by drawing a line connecting
|
|
* the final point to the first point, if those points are different.
|
|
* @param xPoints a an array of <code>x</code> coordinates.
|
|
* @param yPoints a an array of <code>y</code> coordinates.
|
|
* @param nPoints a the total number of points.
|
|
* @see java.awt.Graphics#fillPolygon
|
|
* @see java.awt.Graphics#drawPolyline
|
|
*/
|
|
public void drawPolygon(int xPoints[], int yPoints[],
|
|
int nPoints) {
|
|
g.drawPolygon(xPoints, yPoints, nPoints);
|
|
}
|
|
|
|
/**
|
|
* Draws the outline of a polygon defined by the specified
|
|
* <code>Polygon</code> object.
|
|
* @param p the polygon to draw.
|
|
* @see java.awt.Graphics#fillPolygon
|
|
* @see java.awt.Graphics#drawPolyline
|
|
*/
|
|
public void drawPolygon(Polygon p) {
|
|
g.drawPolygon(p);
|
|
}
|
|
|
|
/**
|
|
* Fills a closed polygon defined by
|
|
* arrays of <i>x</i> and <i>y</i> coordinates.
|
|
* <p>
|
|
* This method draws the polygon defined by <code>nPoint</code> line
|
|
* segments, where the first <code>nPoint - 1</code>
|
|
* line segments are line segments from
|
|
* <code>(xPoints[i - 1], yPoints[i - 1])</code>
|
|
* to <code>(xPoints[i], yPoints[i])</code>, for
|
|
* 1 ≤ <i>i</i> ≤ <code>nPoints</code>.
|
|
* The figure is automatically closed by drawing a line connecting
|
|
* the final point to the first point, if those points are different.
|
|
* <p>
|
|
* The area inside the polygon is defined using an
|
|
* even-odd fill rule, also known as the alternating rule.
|
|
* @param xPoints a an array of <code>x</code> coordinates.
|
|
* @param yPoints a an array of <code>y</code> coordinates.
|
|
* @param nPoints a the total number of points.
|
|
* @see java.awt.Graphics#drawPolygon(int[], int[], int)
|
|
*/
|
|
public void fillPolygon(int xPoints[], int yPoints[],
|
|
int nPoints) {
|
|
g.fillPolygon(xPoints, yPoints, nPoints);
|
|
}
|
|
|
|
/**
|
|
* Fills the polygon defined by the specified Polygon object with
|
|
* the graphics context's current color.
|
|
* <p>
|
|
* The area inside the polygon is defined using an
|
|
* even-odd fill rule, also known as the alternating rule.
|
|
* @param p the polygon to fill.
|
|
* @see java.awt.Graphics#drawPolygon(int[], int[], int)
|
|
*/
|
|
public void fillPolygon(Polygon p) {
|
|
g.fillPolygon(p);
|
|
}
|
|
|
|
/**
|
|
* Draws the text given by the specified string, using this
|
|
* graphics context's current font and color. The baseline of the
|
|
* leftmost character is at position (<i>x</i>, <i>y</i>) in this
|
|
* graphics context's coordinate system.
|
|
* @param str the string to be drawn.
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
* @see java.awt.Graphics#drawBytes
|
|
* @see java.awt.Graphics#drawChars
|
|
*/
|
|
public void drawString(String str, int x, int y) {
|
|
g.drawString(str, x, y);
|
|
}
|
|
|
|
/**
|
|
* Draws the text given by the specified iterator, using this
|
|
* graphics context's current color. The iterator has to specify a font
|
|
* for each character. The baseline of the
|
|
* leftmost character is at position (<i>x</i>, <i>y</i>) in this
|
|
* graphics context's coordinate system.
|
|
* @param iterator the iterator whose text is to be drawn
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
* @see java.awt.Graphics#drawBytes
|
|
* @see java.awt.Graphics#drawChars
|
|
*/
|
|
public void drawString(AttributedCharacterIterator iterator,
|
|
int x, int y) {
|
|
g.drawString(iterator, x, y);
|
|
}
|
|
|
|
/**
|
|
* Draws the text given by the specified character array, using this
|
|
* graphics context's current font and color. The baseline of the
|
|
* first character is at position (<i>x</i>, <i>y</i>) in this
|
|
* graphics context's coordinate system.
|
|
* @param data the array of characters to be drawn
|
|
* @param offset the start offset in the data
|
|
* @param length the number of characters to be drawn
|
|
* @param x the <i>x</i> coordinate of the baseline of the text
|
|
* @param y the <i>y</i> coordinate of the baseline of the text
|
|
* @see java.awt.Graphics#drawBytes
|
|
* @see java.awt.Graphics#drawString
|
|
*/
|
|
public void drawChars(char data[], int offset, int length, int x, int y) {
|
|
g.drawChars(data, offset, length, x, y);
|
|
}
|
|
|
|
/**
|
|
* Draws the text given by the specified byte array, using this
|
|
* graphics context's current font and color. The baseline of the
|
|
* first character is at position (<i>x</i>, <i>y</i>) in this
|
|
* graphics context's coordinate system.
|
|
* @param data the data to be drawn
|
|
* @param offset the start offset in the data
|
|
* @param length the number of bytes that are drawn
|
|
* @param x the <i>x</i> coordinate of the baseline of the text
|
|
* @param y the <i>y</i> coordinate of the baseline of the text
|
|
* @see java.awt.Graphics#drawChars
|
|
* @see java.awt.Graphics#drawString
|
|
*/
|
|
public void drawBytes(byte data[], int offset, int length, int x, int y) {
|
|
g.drawBytes(data, offset, length, x, y);
|
|
}
|
|
|
|
/**
|
|
* Draws as much of the specified image as is currently available.
|
|
* The image is drawn with its top-left corner at
|
|
* (<i>x</i>, <i>y</i>) in this graphics context's coordinate
|
|
* space. Transparent pixels in the image do not affect whatever
|
|
* pixels are already there.
|
|
* <p>
|
|
* This method returns immediately in all cases, even if the
|
|
* complete image has not yet been loaded, and it has not been dithered
|
|
* and converted for the current output device.
|
|
* <p>
|
|
* If the image has not yet been completely loaded, then
|
|
* <code>drawImage</code> returns <code>false</code>. As more of
|
|
* the image becomes available, the process that draws the image notifies
|
|
* the specified image observer.
|
|
* @param img the specified image to be drawn.
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
* @param observer object to be notified as more of
|
|
* the image is converted.
|
|
* @see java.awt.Image
|
|
* @see java.awt.image.ImageObserver
|
|
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
|
|
*/
|
|
public boolean drawImage(Image img, int x, int y,
|
|
ImageObserver observer) {
|
|
return g.drawImage(img, x, y, observer);
|
|
}
|
|
|
|
/**
|
|
* Draws as much of the specified image as has already been scaled
|
|
* to fit inside the specified rectangle.
|
|
* <p>
|
|
* The image is drawn inside the specified rectangle of this
|
|
* graphics context's coordinate space, and is scaled if
|
|
* necessary. Transparent pixels do not affect whatever pixels
|
|
* are already there.
|
|
* <p>
|
|
* This method returns immediately in all cases, even if the
|
|
* entire image has not yet been scaled, dithered, and converted
|
|
* for the current output device.
|
|
* If the current output representation is not yet complete, then
|
|
* <code>drawImage</code> returns <code>false</code>. As more of
|
|
* the image becomes available, the process that draws the image notifies
|
|
* the image observer by calling its <code>imageUpdate</code> method.
|
|
* <p>
|
|
* A scaled version of an image will not necessarily be
|
|
* available immediately just because an unscaled version of the
|
|
* image has been constructed for this output device. Each size of
|
|
* the image may be cached separately and generated from the original
|
|
* data in a separate image production sequence.
|
|
* @param img the specified image to be drawn.
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
* @param width the width of the rectangle.
|
|
* @param height the height of the rectangle.
|
|
* @param observer object to be notified as more of
|
|
* the image is converted.
|
|
* @see java.awt.Image
|
|
* @see java.awt.image.ImageObserver
|
|
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
|
|
*/
|
|
public boolean drawImage(Image img, int x, int y,
|
|
int width, int height,
|
|
ImageObserver observer) {
|
|
return g.drawImage(img, x, y, width, height, observer);
|
|
}
|
|
|
|
/**
|
|
* Draws as much of the specified image as is currently available.
|
|
* The image is drawn with its top-left corner at
|
|
* (<i>x</i>, <i>y</i>) in this graphics context's coordinate
|
|
* space. Transparent pixels are drawn in the specified
|
|
* background color.
|
|
* <p>
|
|
* This operation is equivalent to filling a rectangle of the
|
|
* width and height of the specified image with the given color and then
|
|
* drawing the image on top of it, but possibly more efficient.
|
|
* <p>
|
|
* This method returns immediately in all cases, even if the
|
|
* complete image has not yet been loaded, and it has not been dithered
|
|
* and converted for the current output device.
|
|
* <p>
|
|
* If the image has not yet been completely loaded, then
|
|
* <code>drawImage</code> returns <code>false</code>. As more of
|
|
* the image becomes available, the process that draws the image notifies
|
|
* the specified image observer.
|
|
* @param img the specified image to be drawn.
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
* @param bgcolor the background color to paint under the
|
|
* non-opaque portions of the image.
|
|
* @param observer object to be notified as more of
|
|
* the image is converted.
|
|
* @see java.awt.Image
|
|
* @see java.awt.image.ImageObserver
|
|
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
|
|
*/
|
|
public boolean drawImage(Image img, int x, int y,
|
|
Color bgcolor,
|
|
ImageObserver observer) {
|
|
return g.drawImage(img, x, y, bgcolor, observer);
|
|
}
|
|
|
|
/**
|
|
* Draws as much of the specified image as has already been scaled
|
|
* to fit inside the specified rectangle.
|
|
* <p>
|
|
* The image is drawn inside the specified rectangle of this
|
|
* graphics context's coordinate space, and is scaled if
|
|
* necessary. Transparent pixels are drawn in the specified
|
|
* background color.
|
|
* This operation is equivalent to filling a rectangle of the
|
|
* width and height of the specified image with the given color and then
|
|
* drawing the image on top of it, but possibly more efficient.
|
|
* <p>
|
|
* This method returns immediately in all cases, even if the
|
|
* entire image has not yet been scaled, dithered, and converted
|
|
* for the current output device.
|
|
* If the current output representation is not yet complete then
|
|
* <code>drawImage</code> returns <code>false</code>. As more of
|
|
* the image becomes available, the process that draws the image notifies
|
|
* the specified image observer.
|
|
* <p>
|
|
* A scaled version of an image will not necessarily be
|
|
* available immediately just because an unscaled version of the
|
|
* image has been constructed for this output device. Each size of
|
|
* the image may be cached separately and generated from the original
|
|
* data in a separate image production sequence.
|
|
* @param img the specified image to be drawn.
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
* @param width the width of the rectangle.
|
|
* @param height the height of the rectangle.
|
|
* @param bgcolor the background color to paint under the
|
|
* non-opaque portions of the image.
|
|
* @param observer object to be notified as more of
|
|
* the image is converted.
|
|
* @see java.awt.Image
|
|
* @see java.awt.image.ImageObserver
|
|
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
|
|
*/
|
|
public boolean drawImage(Image img, int x, int y,
|
|
int width, int height,
|
|
Color bgcolor,
|
|
ImageObserver observer) {
|
|
|
|
return g.drawImage(img, x, y, width, height, bgcolor, observer);
|
|
}
|
|
|
|
/**
|
|
* Draws as much of the specified area of the specified image as is
|
|
* currently available, scaling it on the fly to fit inside the
|
|
* specified area of the destination drawable surface. Transparent pixels
|
|
* do not affect whatever pixels are already there.
|
|
* <p>
|
|
* This method returns immediately in all cases, even if the
|
|
* image area to be drawn has not yet been scaled, dithered, and converted
|
|
* for the current output device.
|
|
* If the current output representation is not yet complete then
|
|
* <code>drawImage</code> returns <code>false</code>. As more of
|
|
* the image becomes available, the process that draws the image notifies
|
|
* the specified image observer.
|
|
* <p>
|
|
* This method always uses the unscaled version of the image
|
|
* to render the scaled rectangle and performs the required
|
|
* scaling on the fly. It does not use a cached, scaled version
|
|
* of the image for this operation. Scaling of the image from source
|
|
* to destination is performed such that the first coordinate
|
|
* of the source rectangle is mapped to the first coordinate of
|
|
* the destination rectangle, and the second source coordinate is
|
|
* mapped to the second destination coordinate. The subimage is
|
|
* scaled and flipped as needed to preserve those mappings.
|
|
* @param img the specified image to be drawn
|
|
* @param dx1 the <i>x</i> coordinate of the first corner of the
|
|
* destination rectangle.
|
|
* @param dy1 the <i>y</i> coordinate of the first corner of the
|
|
* destination rectangle.
|
|
* @param dx2 the <i>x</i> coordinate of the second corner of the
|
|
* destination rectangle.
|
|
* @param dy2 the <i>y</i> coordinate of the second corner of the
|
|
* destination rectangle.
|
|
* @param sx1 the <i>x</i> coordinate of the first corner of the
|
|
* source rectangle.
|
|
* @param sy1 the <i>y</i> coordinate of the first corner of the
|
|
* source rectangle.
|
|
* @param sx2 the <i>x</i> coordinate of the second corner of the
|
|
* source rectangle.
|
|
* @param sy2 the <i>y</i> coordinate of the second corner of the
|
|
* source rectangle.
|
|
* @param observer object to be notified as more of the image is
|
|
* scaled and converted.
|
|
* @see java.awt.Image
|
|
* @see java.awt.image.ImageObserver
|
|
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
|
|
* @since JDK1.1
|
|
*/
|
|
public boolean drawImage(Image img,
|
|
int dx1, int dy1, int dx2, int dy2,
|
|
int sx1, int sy1, int sx2, int sy2,
|
|
ImageObserver observer) {
|
|
|
|
return g.drawImage(img, dx1, dy1, dx2, dy2,
|
|
sx1, sy1, sx2, sy2,
|
|
observer);
|
|
}
|
|
|
|
/**
|
|
* Draws as much of the specified area of the specified image as is
|
|
* currently available, scaling it on the fly to fit inside the
|
|
* specified area of the destination drawable surface.
|
|
* <p>
|
|
* Transparent pixels are drawn in the specified background color.
|
|
* This operation is equivalent to filling a rectangle of the
|
|
* width and height of the specified image with the given color and then
|
|
* drawing the image on top of it, but possibly more efficient.
|
|
* <p>
|
|
* This method returns immediately in all cases, even if the
|
|
* image area to be drawn has not yet been scaled, dithered, and converted
|
|
* for the current output device.
|
|
* If the current output representation is not yet complete then
|
|
* <code>drawImage</code> returns <code>false</code>. As more of
|
|
* the image becomes available, the process that draws the image notifies
|
|
* the specified image observer.
|
|
* <p>
|
|
* This method always uses the unscaled version of the image
|
|
* to render the scaled rectangle and performs the required
|
|
* scaling on the fly. It does not use a cached, scaled version
|
|
* of the image for this operation. Scaling of the image from source
|
|
* to destination is performed such that the first coordinate
|
|
* of the source rectangle is mapped to the first coordinate of
|
|
* the destination rectangle, and the second source coordinate is
|
|
* mapped to the second destination coordinate. The subimage is
|
|
* scaled and flipped as needed to preserve those mappings.
|
|
* @param img the specified image to be drawn
|
|
* @param dx1 the <i>x</i> coordinate of the first corner of the
|
|
* destination rectangle.
|
|
* @param dy1 the <i>y</i> coordinate of the first corner of the
|
|
* destination rectangle.
|
|
* @param dx2 the <i>x</i> coordinate of the second corner of the
|
|
* destination rectangle.
|
|
* @param dy2 the <i>y</i> coordinate of the second corner of the
|
|
* destination rectangle.
|
|
* @param sx1 the <i>x</i> coordinate of the first corner of the
|
|
* source rectangle.
|
|
* @param sy1 the <i>y</i> coordinate of the first corner of the
|
|
* source rectangle.
|
|
* @param sx2 the <i>x</i> coordinate of the second corner of the
|
|
* source rectangle.
|
|
* @param sy2 the <i>y</i> coordinate of the second corner of the
|
|
* source rectangle.
|
|
* @param bgcolor the background color to paint under the
|
|
* non-opaque portions of the image.
|
|
* @param observer object to be notified as more of the image is
|
|
* scaled and converted.
|
|
* @see java.awt.Image
|
|
* @see java.awt.image.ImageObserver
|
|
* @see java.awt.image.ImageObserver#imageUpdate(java.awt.Image, int, int, int, int, int)
|
|
* @since JDK1.1
|
|
*/
|
|
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 g.drawImage(img, dx1, dy1, dx2, dy2,
|
|
sx1, sy1, sx2, sy2,
|
|
bgcolor,
|
|
observer);
|
|
}
|
|
|
|
/**
|
|
* Disposes of this graphics context and releases
|
|
* any system resources that it is using.
|
|
* A <code>Graphics</code> object cannot be used after
|
|
* <code>dispose</code>has been called.
|
|
* <p>
|
|
* When a Java program runs, a large number of <code>Graphics</code>
|
|
* objects can be created within a short time frame.
|
|
* Although the finalization process of the garbage collector
|
|
* also disposes of the same system resources, it is preferable
|
|
* to manually free the associated resources by calling this
|
|
* method rather than to rely on a finalization process which
|
|
* may not run to completion for a long period of time.
|
|
* <p>
|
|
* Graphics objects which are provided as arguments to the
|
|
* <code>paint</code> and <code>update</code> methods
|
|
* of components are automatically released by the system when
|
|
* those methods return. For efficiency, programmers should
|
|
* call <code>dispose</code> when finished using
|
|
* a <code>Graphics</code> object only if it was created
|
|
* directly from a component or another <code>Graphics</code> object.
|
|
* @see java.awt.Graphics#finalize
|
|
* @see java.awt.Component#paint
|
|
* @see java.awt.Component#update
|
|
* @see java.awt.Component#getGraphics
|
|
* @see java.awt.Graphics#create
|
|
*/
|
|
public void dispose() {
|
|
g.dispose();
|
|
}
|
|
|
|
/**
|
|
* Empty finalizer as no clean up needed here.
|
|
*/
|
|
public void finalize() {
|
|
}
|
|
|
|
/**
|
|
* Returns a <code>String</code> object representing this
|
|
* <code>Graphics</code> object's value.
|
|
* @return a string representation of this graphics context.
|
|
*/
|
|
public String toString() {
|
|
return getClass().getName() + "[font=" + getFont() + ",color=" + getColor() + "]";
|
|
}
|
|
|
|
/**
|
|
* @deprecated As of JDK version 1.1,
|
|
* replaced by <code>getClipBounds()</code>.
|
|
*/
|
|
@Deprecated
|
|
public Rectangle getClipRect() {
|
|
return g.getClipRect();
|
|
}
|
|
|
|
/**
|
|
* Returns true if the specified rectangular area intersects
|
|
* the bounding rectangle of the current clipping area.
|
|
* The coordinates in the rectangle are relative to the coordinate
|
|
* system origin of this graphics context.
|
|
*
|
|
* @param x the x coordinate of the rectangle to test against the clip
|
|
* @param y the y coordinate of the rectangle to test against the clip
|
|
* @param width the width of the rectangle to test against the clip
|
|
* @param height the height of the rectangle to test against the clip
|
|
*/
|
|
public boolean hitClip(int x, int y, int width, int height) {
|
|
return g.hitClip(x, y, width, height);
|
|
}
|
|
|
|
/**
|
|
* Returns the bounding rectangle of the current clipping area.
|
|
* The coordinates in the rectangle are relative to the coordinate
|
|
* system origin of this graphics context. This method differs
|
|
* from {@link #getClipBounds() getClipBounds} in that an existing
|
|
* rectangle is used instead of allocating a new one.
|
|
* This method refers to the user clip, which is independent of the
|
|
* clipping associated with device bounds and window visibility.
|
|
* If no clip has previously been set, or if the clip has been
|
|
* cleared using <code>setClip(null)</code>, this method returns the
|
|
* specified <code>Rectangle</code>.
|
|
* @param r the rectangle where the current clipping area is
|
|
* copied to. Any current values in this rectangle are
|
|
* overwritten.
|
|
* @return the bounding rectangle of the current clipping area.
|
|
*/
|
|
public Rectangle getClipBounds(Rectangle r) {
|
|
return g.getClipBounds(r);
|
|
}
|
|
}
|