Java/J2ME/Shape

Материал из Java эксперт
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Arc

   <source lang="java">

//jad file (please verify the jar size) /* MIDlet-Name: ArcExampleMIDlet MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: ArcExampleMIDlet.jar MIDlet-1: ArcExampleMIDlet, , ArcExampleMIDlet MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100

  • /

import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class ArcExampleMIDlet extends MIDlet { 

 private Display display;
 private MyCanvas canvas;
 public ArcExampleMIDlet() {
   display = Display.getDisplay(this);
   canvas = new MyCanvas(this);
 }
 protected void startApp() {
   display.setCurrent(canvas);
 }
 protected void pauseApp() {
 }
 protected void destroyApp(boolean unconditional) {
 }
 public void exitMIDlet() {
   destroyApp(true);
   notifyDestroyed();
 }

} class MyCanvas extends Canvas implements CommandListener { 

 private Command exit;
 private ArcExampleMIDlet arcExample;
 public MyCanvas(ArcExampleMIDlet arcExample) {
   this.arcExample = arcExample;
   exit = new Command("Exit", Command.EXIT, 1);
   addCommand(exit);
   setCommandListener(this);
 }
 protected void paint(Graphics graphics) {
   graphics.setColor(255, 255, 255);
   graphics.fillRect(0, 0, getWidth(), getHeight());
   graphics.setColor(255, 0, 0);
   graphics.drawArc(0, 0, getWidth(), getHeight(), 180, 180);
 }
 public void commandAction(Command command, Displayable displayable) {
   if (command == exit) {
     arcExample.exitMIDlet();
   }
 }

} 

      </source>



Arc Filled Example

   <source lang="java">

//jad file (please verify the jar size) /* MIDlet-Name: ArcFilledExample MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: ArcFilledExample.jar MIDlet-1: ArcFilledExample, , ArcFilledExample MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100

  • /

import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class ArcFilledExample extends MIDlet { 

 private Display display;
 private MyCanvas canvas;
 public ArcFilledExample() {
   display = Display.getDisplay(this);
   canvas = new MyCanvas(this);
 }
 protected void startApp() {
   display.setCurrent(canvas);
 }
 protected void pauseApp() {
 }
 protected void destroyApp(boolean unconditional) {
 }
 public void exitMIDlet() {
   destroyApp(true);
   notifyDestroyed();
 }

} class MyCanvas extends Canvas implements CommandListener { 

 private Command exit;
 private ArcFilledExample arcFilledExample;
 public MyCanvas(ArcFilledExample arcFilledExample) {
   this.arcFilledExample = arcFilledExample;
   exit = new Command("Exit", Command.EXIT, 1);
   addCommand(exit);
   setCommandListener(this);
 }
 protected void paint(Graphics graphics) {
   graphics.setColor(255, 255, 255);
   graphics.fillRect(0, 0, getWidth(), getHeight());
   graphics.setColor(255, 0, 0);
   graphics.fillArc(0, 0, getWidth(), getHeight(), 180, 180);
 }
 public void commandAction(Command command, Displayable displayable) {
   if (command == exit) {
     arcFilledExample.exitMIDlet();
   }
 }

} 

      </source>



Draw arc on a canvas

   <source lang="java">

/*--------------------------------------------------

  • Arcs.java
  • Draw arc on a canvas
  • Example from the book: Core J2ME Technology
  • Copyright John W. Muchow http://www.CoreJ2ME.ru
  • You may use/modify for any non-commercial purpose
  • -------------------------------------------------*/

import javax.microedition.midlet.*; import javax.microedition.lcdui.*; public class Arcs extends MIDlet { 

 private Display  display;    // The display
 private ArcsCanvas canvas;   // Canvas 

 public Arcs()
 {
   display = Display.getDisplay(this);
   canvas  = new ArcsCanvas(this);
 }

 protected void startApp()
 {
   display.setCurrent( canvas );
 }

 protected void pauseApp()
 { }
 protected void destroyApp( boolean unconditional )
 { }

 public void exitMIDlet()
 {
   destroyApp(true);
   notifyDestroyed();
 }

} /*--------------------------------------------------

  • Class ArcsCanvas
  • Draw arcs
  • -------------------------------------------------*/

class ArcsCanvas extends Canvas implements CommandListener { 

 private Command cmExit;  // Exit midlet
 private Arcs midlet;

 public ArcsCanvas(Arcs midlet)
 {
   this.midlet = midlet;
   
   // Create exit command & listen for events
   cmExit = new Command("Exit", Command.EXIT, 1);
   addCommand(cmExit);
   setCommandListener(this);
 } 
 /*--------------------------------------------------
 * Draw an arc 
 *-------------------------------------------------*/
 protected void paint(Graphics g)
 {
   // Start at 3 o"clock and rotate 225 degrees
   g.drawArc(5, 5, 75, 75, 0, 225);

// g.fillArc(5, 5, 75, 75, 0, 225); 

   // Start at 12 o"clock and rotate 225 degrees

// g.drawArc(5, 5, 75, 75, 90, 225); 

   // Change the size of the bounding box
   // Start at 12 o"clock and rotate 225 degrees

// g.drawArc(25, 35, 30, 50, 90, 225); 

 }
 public void commandAction(Command c, Displayable d)
 {
   if (c == cmExit)
     midlet.exitMIDlet();
 }

} 


      </source>



Filled Rectangle Example

   <source lang="java">

//jad file (please verify the jar size) /* MIDlet-Name: FilledRectangleExample MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: FilledRectangleExample.jar MIDlet-1: FilledRectangleExample, , FilledRectangleExample MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100

  • /

import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class FilledRectangleExample extends MIDlet { 

 private Display display;
 private MyCanvas canvas;
 public FilledRectangleExample() {
   display = Display.getDisplay(this);
   canvas = new MyCanvas(this);
 }
 protected void startApp() {
   display.setCurrent(canvas);
 }
 protected void pauseApp() {
 }
 protected void destroyApp(boolean unconditional) {
 }
 public void exitMIDlet() {
   destroyApp(true);
   notifyDestroyed();
 }

} class MyCanvas extends Canvas implements CommandListener { 

 private Command exit;
 private FilledRectangleExample filledRectangleExample;
 public MyCanvas(FilledRectangleExample filledRectangleExample) {
   this.filledRectangleExample = filledRectangleExample;
   exit = new Command("Exit", Command.EXIT, 1);
   addCommand(exit);
   setCommandListener(this);
 }
 protected void paint(Graphics graphics) {
   graphics.setColor(255, 255, 255);
   graphics.fillRect(0, 0, getWidth(), getHeight());
   graphics.setColor(0, 0, 255);
   graphics.fillRect(2, 2, 20, 20);
   graphics.fillRoundRect(20, 20, 60, 60, 15, 45);
 }
 public void commandAction(Command command, Displayable displayable) {
   if (command == exit) {
     filledRectangleExample.exitMIDlet();
   }
 }

} 

      </source>



Rectangle Example

   <source lang="java">

//jad file (please verify the jar size) /* MIDlet-Name: RectangleExample MIDlet-Version: 1.0 MIDlet-Vendor: MyCompany MIDlet-Jar-URL: RectangleExample.jar MIDlet-1: RectangleExample, , RectangleExample MicroEdition-Configuration: CLDC-1.0 MicroEdition-Profile: MIDP-1.0 MIDlet-JAR-SIZE: 100

  • /

import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class RectangleExample extends MIDlet { 

 private Display display;
 private MyCanvas canvas;
 public RectangleExample() {
   display = Display.getDisplay(this);
   canvas = new MyCanvas(this);
 }
 protected void startApp() {
   display.setCurrent(canvas);
 }
 protected void pauseApp() {
 }
 protected void destroyApp(boolean unconditional) {
 }
 public void exitMIDlet() {
   destroyApp(true);
   notifyDestroyed();
 }

} class MyCanvas extends Canvas implements CommandListener { 

 private Command exit = new Command("Exit", Command.EXIT, 1);
 private RectangleExample rectangleExample;
 public MyCanvas(RectangleExample rectangleExample) {
   this.rectangleExample = rectangleExample;
   addCommand(exit);
   setCommandListener(this);
 }
 protected void paint(Graphics graphics) {
   graphics.setColor(255, 255, 255);
   graphics.fillRect(0, 0, getWidth(), getHeight());
   graphics.setColor(255, 0, 0);
   graphics.drawRect(2, 2, 20, 20);
   graphics.drawRoundRect(20, 20, 60, 60, 15, 45);
 }
 public void commandAction(Command command, Displayable displayable) {
   if (command == exit) {
     rectangleExample.exitMIDlet();
   }
 }

} 


      </source>



Rectangles

   <source lang="java">

/*--------------------------------------------------

  • Rectangles.java
  • Draw rectangles on a canvas
  • Example from the book: Core J2ME Technology
  • Copyright John W. Muchow http://www.CoreJ2ME.ru
  • You may use/modify for any non-commercial purpose
  • -------------------------------------------------*/

import javax.microedition.midlet.*; import javax.microedition.lcdui.*; public class RectanglesMIDlet extends MIDlet { 

 private Display  display;    // The display
 private RectangleCanvas canvas;   // Canvas 

 public Rectangles()
 {
   display = Display.getDisplay(this);
   canvas  = new RectangleCanvas(this);
 }

 protected void startApp()
 {
   display.setCurrent( canvas );
 }

 protected void pauseApp()
 { }
 protected void destroyApp( boolean unconditional )
 { }

 public void exitMIDlet()
 {
   destroyApp(true);
   notifyDestroyed();
 }

} /*--------------------------------------------------

  • Class RectangleCanvas
  • Draw arcs
  • -------------------------------------------------*/

class RectangleCanvas extends Canvas implements CommandListener { 

 private Command cmExit;  // Exit midlet
 private Rectangles midlet;
 public RectangleCanvas(Rectangles midlet)
 {
   this.midlet = midlet;
   
   // Create exit command & listen for events
   cmExit = new Command("Exit", Command.EXIT, 1);
   addCommand(cmExit);
   setCommandListener(this);
 } 
 /*--------------------------------------------------
 * Draw an arc 
 *-------------------------------------------------*/
 protected void paint(Graphics g)
 {
   g.drawRect(1, 1, 25, 25);
   g.drawRoundRect(28, 28, 45, 45, 15, 45);

// g.fillRect(1, 1, 25, 25); // g.fillRoundRect(28, 28, 45, 45, 15, 45); 

 }
 public void commandAction(Command c, Displayable d)
 {
   if (c == cmExit)
     midlet.exitMIDlet();
 }

} 

      </source>
Источник — «http://jexp.ru/index.php?title=Java/J2ME/Shape&oldid=7291»