AWT » AWT BasicStroke類

AWT BasicStroke類

BasicStroke的類宣告中的顏色預設sRGB顏色空間或顏色的任意顏色空間中的顏色確定。

類的宣告

以下是宣告的java.awt.BasicStroke類：

public class BasicStroke
   extends Object
      implements Stroke

欄位域

以下是java.awt.geom.Arc2D類欄位：

  • static int CAP_BUTT -- 結束未封閉的子路徑和虛線線段與不加裝飾。

  • static int CAP_ROUND -- 結束未封閉的子路徑和虛線線段與一個圓形的裝飾，有一個半徑等於一半的筆寬。

  • static int CAP_SQUARE -- 結束未封閉的子路徑和虛線段的具有方形的突起，伸出的端部的線寬度的一半的距離等於的段。

  • static int JOIN_BEVEL -- 加入通過其廣泛的輪廓用直線段連線外眼角的路徑段。

  • static int JOIN_MITER -- 加入路徑段延伸的外邊緣，直到他們滿足。

  • static int JOIN_ROUND -- 加入路徑段，通過舍入的拐角處的半徑處的線寬度的一半。

類別建構函式

S.N. 建構函式與說明
1 BasicStroke() 
Constructs a new BasicStroke with defaults for all attributes.
2 BasicStroke(float width) 
Constructs a solid BasicStroke with the specified line width and with default values for the cap and join styles.
3 BasicStroke(float width, int cap, int join)
Constructs a solid BasicStroke with the specified attributes.
4 BasicStroke(float width, int cap, int join, float miterlimit)
Constructs a solid BasicStroke with the specified attributes.
5 BasicStroke(float width, int cap, int join, float miterlimit, float[] dash, float dash_phase) 
Constructs a new BasicStroke with the specified attributes.

類方法

S.N. 方法和說明
1 Shape createStrokedShape(Shape s) 
Returns a Shape whose interior defines the stroked outline of a specified Shape.
2 boolean equals(Object obj) 
Tests if a specified object is equal to this BasicStroke by first testing if it is a BasicStroke and then comparing its width, join, cap, miter limit, dash, and dash phase attributes with those of this BasicStroke.
3 float[] getDashArray() 
Returns the array representing the lengths of the dash segments.
4 float getDashPhase() 
Returns the current dash phase.
5 int getEndCap() 
Returns the end cap style.
6 int getLineJoin() 
Returns the line join style.
7 float getLineWidth() 
Returns the line width.
8 float getMiterLimit() 
Returns the limit of miter joins.
9 int hashCode() 
Returns the hashcode for this stroke.

繼承的方法

這個類繼承的方法從以下類：

  • java.lang.Object

BasicStroke 範例

選擇使用任何編輯器建立以下java程式 D:/ > AWT > com > yiibai > gui >

AWTGraphicsDemo.java 
package com.yiibai.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.setStroke(new BasicStroke(3.0f));
      g2.setPaint(Color.blue);

      Rectangle2D shape = new Rectangle2D.Float();
      shape.setFrame(100, 150, 200,100);
      g2.draw(shape);

      Rectangle2D shape1 = new Rectangle2D.Float();
      shape1.setFrame(110, 160, 180,80);
      g2.setStroke(new BasicStroke(1.0f));
   
      g2.draw(shape1);
      Font plainFont = new Font("Serif", Font.PLAIN, 24);        
      g2.setFont(plainFont);
      g2.setColor(Color.DARK_GRAY);
      g2.drawString("TutorialsPoint", 130, 200);
   }
}

編譯程式，使用命令提示字元。進入到D:/> AWT，然後鍵入以下命令。

D:AWT>javac comyiibaiguiAwtGraphicsDemo.java

如果沒有錯誤出現，這意味著編譯成功。使用下面的命令來執行程式。

D:AWT>java com.yiibai.gui.AwtGraphicsDemo

驗證下面的輸出

AWT BasicStroke