Graphics2D类扩展Graphics类的几何坐标变换,色彩管理和文本布局提供更复杂的控制权。
类的声明
以下是的声明类java.awt.Graphics2D:
public abstract class Graphics2D extends Graphics
类的构造函数
| S.N. | 构造函数与说明 | 
|---|---|
| 1 | 
				Graphics2D() Constructs a new Graphics2D object.  | 
		
类方法
| S.N. | 方法和说明 | 
|---|---|
| 1 | 
				abstract void addRenderingHints(Map hints)  Sets the values of an arbitrary number of preferences for the rendering algorithms.  | 
		
| 2 | 
				abstract void clip(Shape s)  Intersects the current Clip with the interior of the specified Shape and sets the Clip to the resulting intersection.  | 
		
| 3 | 
				abstract void draw(Shape s)  Strokes the outline of a Shape using the settings of the current Graphics2D context.  | 
		
| 4 | 
				void draw3DRect(int x, int y, int width, int height, boolean raised)  Draws a 3-D highlighted outline of the specified rectangle.  | 
		
| 5 | 
				abstract void drawGlyphVector(GlyphVector g, float x, float y)  Renders the text of the specified GlyphVector using the Graphics2D context's rendering attributes.  | 
		
| 6 | 
				abstract void drawImage(BufferedImage img, BufferedImageOp op, int x, int y)  Renders a BufferedImage that is filtered with a BufferedImageOp.  | 
		
| 7 | 
				abstract boolean drawImage(Image img, AffineTransform xform, ImageObserver obs)  Renders an image, applying a transform from image space into user space before drawing.  | 
		
| 8 | 
				abstract void drawRenderableImage(RenderableImage img, AffineTransform xform)  Renders a RenderableImage, applying a transform from image space into user space before drawing.  | 
		
| 9 | 
				abstract void drawRenderedImage(RenderedImage img, AffineTransform xform)  Renders a RenderedImage, applying a transform from image space into user space before drawing.  | 
		
| 10 | 
				abstract void drawString(AttributedCharacterIterator iterator, float x, float y)  Renders the text of the specified iterator applying its attributes in accordance with the specification of the TextAttribute class.  | 
		
| 11 | 
				abstract void drawString(AttributedCharacterIterator iterator, int x, int y)  Renders the text of the specified iterator applying its attributes in accordance with the specification of the TextAttribute class.  | 
		
| 12 | 
				abstract void drawString(String str, float x, float y)  Renders the text specified by the specified String, using the current text attribute state in the Graphics2D context.  | 
		
| 13 | 
				abstract void drawString(String str, int x, int y)  Renders the text of the specified String, using the current text attribute state in the Graphics2D context.  | 
		
| 14 | 
				abstract void fill(Shape s)  Fills the interior of a Shape using the settings of the Graphics2D context.  | 
		
| 15 | 
				void fill3DRect(int x, int y, int width, int height, boolean raised)  Paints a 3-D highlighted rectangle filled with the current color.  | 
		
| 16 | 
				abstract Color getBackground()  Returns the background color used for clearing a region.  | 
		
| 17 | 
				abstract Composite getComposite()  Returns the current Composite in the Graphics2D context.  | 
		
| 18 | 
				abstract GraphicsConfiguration getDeviceConfiguration()  Returns the device configuration associated with this Graphics2D.  | 
		
| 19 | 
				abstract FontRenderContext getFontRenderContext()  Get the rendering context of the Font within this Graphics2D context.  | 
		
| 20 | 
				abstract Paint getPaint()  Returns the current Paint of the Graphics2D context.  | 
		
| 21 | 
				abstract Object getRenderingHint(RenderingHints.Key hintKey)  Returns the value of a single preference for the rendering algorithms.  | 
		
| 22 | 
				abstract RenderingHints getRenderingHints()  Gets the preferences for the rendering algorithms.  | 
		
| 23 | 
				abstract Stroke getStroke()  Returns the current Stroke in the Graphics2D context.  | 
		
| 24 | 
				abstract AffineTransform getTransform()  Returns a copy of the current Transform in the Graphics2D context.  | 
		
| 25 | 
				abstract boolean hit(Rectangle rect, Shape s, boolean onStroke)  Checks whether or not the specified Shape intersects the specified Rectangle, which is in device space.  | 
		
| 26 | 
				abstract void rotate(double theta) Concatenates the current Graphics2D Transform with a rotation transform.  | 
		
| 27 | 
				abstract void rotate(double theta, double x, double y)  Concatenates the current Graphics2D Transform with a translated rotation transform.  | 
		
| 28 | 
				abstract void scale(double sx, double sy)  Concatenates the current Graphics2D Transform with a scaling transformation Subsequent rendering is resized according to the specified scaling factors relative to the previous scaling.  | 
		
| 29 | 
				abstract void setBackground(Color color)  Sets the background color for the Graphics2D context.  | 
		
| 30 | 
				abstract void setComposite(Composite comp)  Sets the Composite for the Graphics2D context.  | 
		
| 31 | 
				abstract void setPaint(Paint paint)  Sets the Paint attribute for the Graphics2D context.  | 
		
| 32 | 
				abstract void setRenderingHint(RenderingHints.Key hintKey, Object hintValue)  Sets the value of a single preference for the rendering algorithms.  | 
		
| 33 | 
				abstract void setRenderingHints(Map hints)  Replaces the values of all preferences for the rendering algorithms with the specified hints.  | 
		
| 34 | 
				abstract void setStroke(Stroke s)  Sets the Stroke for the Graphics2D context.  | 
		
| 35 | 
				abstract void setTransform(AffineTransform Tx)  Overwrites the Transform in the Graphics2D context.  | 
		
| 36 | 
				abstract void shear(double shx, double shy)  Concatenates the current Graphics2D Transform with a shearing transform.  | 
		
| 37 | 
				abstract void transform(AffineTransform Tx)  Composes an AffineTransform object with the Transform in this Graphics2D according to the rule last-specified-first-applied.  | 
		
| 38 | 
				abstract void translate(double tx, double ty)  Concatenates the current Graphics2D Transform with a translation transform.  | 
		
| 39 | 
				abstract void translate(int x, int y)  Translates the origin of the Graphics2D context to the point (x, y) in the current coordinate system.  | 
		
继承的方法
这个类继承的方法从以下类:
- 
		
java.lang.Object
 
Graphics2D 实例
选择使用任何编辑器创建以下java程序 D:/ > AWT > com > zaixian > gui >
AWTGraphicsDemo.java
package com.zaixian.gui; import java.awt.*; import java.awt.event.*; import java.awt.geom.*; public class AWTGraphicsDemo extends Frame { public AWTGraphicsDemo(){ super("Java AWT Examples"); prepareGUI(); } public static void main(String[] args){ AWTGraphicsDemo awtGraphicsDemo = new AWTGraphicsDemo(); awtGraphicsDemo.setVisible(true); } private void prepareGUI(){ setSize(400,400); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent windowEvent){ System.exit(0); } }); } @Override public void paint(Graphics g) { Graphics2D g2 = (Graphics2D)g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); Font font = new Font("Serif", Font.PLAIN, 24); g2.setFont(font); g2.drawString("Welcome to TutorialsPoint", 50, 70); } }
编译程序,使用命令提示符。进入到D:/> AWT,然后键入以下命令。
D:AWT>javac comzaixianguiAWTGraphicsDemo.java
如果没有错误出现,这意味着编译成功。使用下面的命令来运行程序。
D:AWT>java com.zaixian.gui.AWTGraphicsDemo
验证下面的输出
	
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