Java/SWT JFace Eclipse/Shell Display — различия между версиями

Текущая версия на 05:55, 1 июня 2010

Содержание

1 Child Shell Example
2 Child Shell Example 2
3 Child Shell Example 3
4 Complex Shell Example
5 Composite Shell Example 2
6 Create and dispose children of a composite
7 Create a non-rectangular shell to simulate transparency
8 Create a splash screen in SWT
9 Create one repeating timer (every 500 ms)
10 Create two one shot timers (5000 ms, 2000 ms)
11 Display example snippet: get the bounds and client area of a display
12 Display: stop a repeating timer when a button is pressed
13 HelloWorld Display
14 Non Rectangular Window in SWT
15 Open a shell maximized (full screen)
16 Open a shell minimized (iconified)
17 Prevent a shell from closing (prompt the user)
18 Professional Shell
19 Ring Shell
20 Shell Style
21 Shell Styles Example
22 Shows the various styles of Decorations
23 Simplest SWT
24 SWT Composite Class
25 SWT Shell : create a non-rectangular window
26 Widget Test

Child Shell Example

// java -Djava.library.path=D:\Java_Dev\eclipse\plugins\org.eclipse.swt.win32_3.0.0\os\win32\x86.library.path=D:\Java_Dev\eclipse\plugins\org.eclipse.swt.win32_3.0.0\os\win32\x86 ClassName
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class ChildShellExample {
  Display d = new Display();
  ChildShellExample() {
    Shell s = new Shell(d);
    s.setSize(500, 500);
    s.open();
    ChildShell cs = new ChildShell(s);
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
    public static void main(String[] args){
      new ChildShellExample();
    }   
}
class ChildShell {
  ChildShell(Shell parent) {
    Shell child = new Shell(parent);
    child.setSize(200, 200);
    child.open();
  }
}

Child Shell Example 2

// java -Djava.library.path=D:\Java_Dev\eclipse\plugins\org.eclipse.swt.win32_3.0.0\os\win32\x86.library.path=D:\Java_Dev\eclipse\plugins\org.eclipse.swt.win32_3.0.0\os\win32\x86 ClassName
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class ChildShellExample2 {
  Display d = new Display();
  ChildShellExample2() {
    Shell s = new Shell(d);
    s.setSize(500, 500);
    s.open();
    ChildShell cs1 = new ChildShell(s);
    ChildShell cs2 = new ChildShell(s);
    ChildShell cs3 = new ChildShell(s);
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
    public static void main(String[] argv){
      new ChildShellExample2();
    }  
}
class ChildShell {
  ChildShell(Shell parent) {
    Shell child = new Shell(parent);
    child.setSize(200, 200);
    child.open();
  }
}

Child Shell Example 3

// java -Djava.library.path=D:\Java_Dev\eclipse\plugins\org.eclipse.swt.win32_3.0.0\os\win32\x86.library.path=D:\Java_Dev\eclipse\plugins\org.eclipse.swt.win32_3.0.0\os\win32\x86 ClassName

import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class ChildShellExample3 {
  Display d = new Display();
  ChildShellExample3() {
    Shell s = new Shell(d);
    s.setSize(500, 500);
    s.open();
    ChildShell cs1 = new ChildShell(s);
    System.out.println("Execution Continues");
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
  public static void main(String[] argv) {
    new ChildShellExample3();
  }
}
class ChildShell {
  ChildShell(Shell parent) {
    Shell child = new Shell(parent);
    child.setSize(200, 200);
    child.open();
  }
}

Complex Shell Example

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class ComplexShellExample {
  Display d;
  Shell s;
  ComplexShellExample() {
    d = new Display();
    s = new Shell(d);
    s.setSize(250, 275);
    
    s.setText("A Shell Composite Example");
    GridLayout gl = new GridLayout();
    gl.numColumns = 4;
    s.setLayout(gl);
    s.setLayout(gl);
    GridComposite gc = new GridComposite(s);
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.horizontalSpan = 4;
    gc.setLayoutData(gd);
    gd = new GridData();
    RowComposite rc = new RowComposite(s);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    rc.setLayoutData(gd);
    s.open();
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
  public static void main(String[] arg) {
    new ComplexShellExample();
  }
}
class RowComposite extends Composite {
  final Button okBtn;
  final Button cancelBtn;
  public RowComposite(Composite c) {
    super(c, SWT.NO_FOCUS);
    RowLayout rl = new RowLayout();
    rl.wrap = false;
    rl.pack = false;
    this.setLayout(rl);
    okBtn = new Button(this, SWT.BORDER | SWT.PUSH);
    okBtn.setText("OK");
    okBtn.setSize(30, 20);
    cancelBtn = new Button(this, SWT.BORDER | SWT.PUSH);
    cancelBtn.setText("Cancel");
    cancelBtn.setSize(30, 20);
    cancelBtn.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        System.out.println("Cancel was clicked");
      }
    });
  }
  public static void main(String[] arg) {
  }
}
class GridComposite extends Composite {
  public GridComposite(Composite c) {
    super(c, SWT.BORDER);
    GridLayout gl = new GridLayout();
    gl.numColumns = 3;
    this.setLayout(gl);
    final Label l1 = new Label(this, SWT.BORDER);
    l1.setText("Column One");
    final Label l2 = new Label(this, SWT.BORDER);
    l2.setText("Column Two");
    final Label l3 = new Label(this, SWT.BORDER);
    l3.setText("Column Three");
    final Text t1 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t2 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t3 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t4 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t5 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t6 = new Text(this, SWT.SINGLE | SWT.BORDER);
    GridData gd = new GridData();
    gd.horizontalAlignment = GridData.CENTER;
    l1.setLayoutData(gd);
    gd = new GridData();
    gd.horizontalAlignment = GridData.CENTER;
    l2.setLayoutData(gd);
    gd = new GridData();
    gd.horizontalAlignment = GridData.CENTER;
    l3.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t1.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t2.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t3.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t4.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t5.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t6.setLayoutData(gd);
  }
}

Composite Shell Example 2

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class CompositeShellExample2 {
  Display d;
  Shell s;
  CompositeShellExample2() {
    d = new Display();
    s = new Shell(d);
    GridLayout gl = new GridLayout();
    gl.numColumns = 4;
    s.setLayout(gl);
    s.setSize(250, 275);
    
    s.setText("A Shell Composite Example");
    s.setLayout(gl);
    GridComposite gc = new GridComposite(s);
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.horizontalSpan = 4;
    gc.setLayoutData(gd);
    gd = new GridData();
    Composite c1 = new Composite(s, SWT.NO_FOCUS);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    c1.setLayoutData(gd);
    Composite c2 = new Composite(s, SWT.NO_FOCUS);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    c2.setLayoutData(gd);
    Composite c = new Composite(s, SWT.NO_FOCUS);
    c.setLayout(new RowLayout());
    Button b1 = new Button(c, SWT.PUSH | SWT.BORDER);
    b1.setText("OK");
    Button b2 = new Button(c, SWT.PUSH | SWT.BORDER);
    b2.setText("Cancel");
    gd = new GridData(GridData.FILL_HORIZONTAL);
    c.setLayoutData(gd);
    s.open();
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
  public static void main(String[] arg) {
    new CompositeShellExample2();
  }
}
class GridComposite extends Composite {
  public GridComposite(Composite c) {
    super(c, SWT.BORDER);
    GridLayout gl = new GridLayout();
    gl.numColumns = 3;
    this.setLayout(gl);
    final Label l1 = new Label(this, SWT.BORDER);
    l1.setText("Column One");
    final Label l2 = new Label(this, SWT.BORDER);
    l2.setText("Column Two");
    final Label l3 = new Label(this, SWT.BORDER);
    l3.setText("Column Three");
    final Text t1 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t2 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t3 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t4 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t5 = new Text(this, SWT.SINGLE | SWT.BORDER);
    final Text t6 = new Text(this, SWT.SINGLE | SWT.BORDER);
    GridData gd = new GridData();
    gd.horizontalAlignment = GridData.CENTER;
    l1.setLayoutData(gd);
    gd = new GridData();
    gd.horizontalAlignment = GridData.CENTER;
    l2.setLayoutData(gd);
    gd = new GridData();
    gd.horizontalAlignment = GridData.CENTER;
    l3.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t1.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t2.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t3.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t4.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t5.setLayoutData(gd);
    gd = new GridData(GridData.FILL_HORIZONTAL);
    t6.setLayoutData(gd);
  }
}

Create and dispose children of a composite

/*
 * Composite example snippet: create and dispose children of a composite
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
public class Snippet98 {
  static int pageNum = 0;
  static Composite pageComposite;
  public static void main(String args[]) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setLayout(new GridLayout());
    Button button = new Button(shell, SWT.PUSH);
    button.setText("Push");
    pageComposite = new Composite(shell, SWT.NONE);
    pageComposite.setLayout(new GridLayout());
    pageComposite.setLayoutData(new GridData());
    button.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event event) {
        if ((pageComposite != null) && (!pageComposite.isDisposed())) {
          pageComposite.dispose();
        }
        pageComposite = new Composite(shell, SWT.NONE);
        pageComposite.setLayout(new GridLayout());
        pageComposite.setLayoutData(new GridData());
        if (pageNum++ % 2 == 0) {
          Table table = new Table(pageComposite, SWT.BORDER);
          table.setLayoutData(new GridData());
          for (int i = 0; i < 5; i++) {
            new TableItem(table, SWT.NONE).setText("table item "
                + i);
          }
        } else {
          new Button(pageComposite, SWT.RADIO).setText("radio");
        }
        shell.layout(true);
      }
    });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Create a non-rectangular shell to simulate transparency

/*
 * Create a non-rectangular shell to simulate transparency
 * 
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.graphics.Region;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class Snippet180 {
  public static void main(String[] args) {
    Display display = new Display();
    final Image image = display.getSystemImage(SWT.ICON_WARNING);
    // Shell must be created with style SWT.NO_TRIM
    final Shell shell = new Shell(display, SWT.NO_TRIM | SWT.ON_TOP);
    shell.setBackground(display.getSystemColor(SWT.COLOR_RED));
    // define a region
    Region region = new Region();
    Rectangle pixel = new Rectangle(0, 0, 1, 1);
    for (int y = 0; y < 200; y += 2) {
      for (int x = 0; x < 200; x += 2) {
        pixel.x = x;
        pixel.y = y;
        region.add(pixel);
      }
    }
    // define the shape of the shell using setRegion
    shell.setRegion(region);
    Rectangle size = region.getBounds();
    shell.setSize(size.width, size.height);
    shell.addPaintListener(new PaintListener() {
      public void paintControl(PaintEvent e) {
        Rectangle bounds = image.getBounds();
        Point size = shell.getSize();
        e.gc.drawImage(image, 0, 0, bounds.width, bounds.height, 10,
            10, size.x - 20, size.y - 20);
      }
    });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    region.dispose();
    display.dispose();
  }
}

Create a splash screen in SWT

/*
 * Shell example snippet: create a splash screen
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;
public class Snippet104 {
  public static void main(String[] args) {
    final Display display = new Display();
    final int[] count = new int[] { 4 };
    final Image image = new Image(display, 300, 300);
    final Shell splash = new Shell(SWT.ON_TOP);
    final ProgressBar bar = new ProgressBar(splash, SWT.NONE);
    bar.setMaximum(count[0]);
    Label label = new Label(splash, SWT.NONE);
    label.setImage(image);
    FormLayout layout = new FormLayout();
    splash.setLayout(layout);
    FormData labelData = new FormData();
    labelData.right = new FormAttachment(100, 0);
    labelData.bottom = new FormAttachment(100, 0);
    label.setLayoutData(labelData);
    FormData progressData = new FormData();
    progressData.left = new FormAttachment(0, 5);
    progressData.right = new FormAttachment(100, -5);
    progressData.bottom = new FormAttachment(100, -5);
    bar.setLayoutData(progressData);
    splash.pack();
    Rectangle splashRect = splash.getBounds();
    Rectangle displayRect = display.getBounds();
    int x = (displayRect.width - splashRect.width) / 2;
    int y = (displayRect.height - splashRect.height) / 2;
    splash.setLocation(x, y);
    splash.open();
    display.asyncExec(new Runnable() {
      public void run() {
        Shell[] shells = new Shell[count[0]];
        for (int i = 0; i < count[0]; i++) {
          shells[i] = new Shell(display);
          shells[i].setSize(300, 300);
          shells[i].addListener(SWT.Close, new Listener() {
            public void handleEvent(Event e) {
              --count[0];
            }
          });
          bar.setSelection(i + 1);
          try {
            Thread.sleep(1000);
          } catch (Throwable e) {
          }
        }
        splash.close();
        image.dispose();
        for (int i = 0; i < count[0]; i++) {
          shells[i].open();
        }
      }
    });
    while (count[0] != 0) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Create one repeating timer (every 500 ms)

/*
 * Display example snippet: create one repeating timer (every 500 ms)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class Snippet16 {
  public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display);
    final int time = 500;
    Runnable timer = new Runnable() {
      public void run() {
        Point point = display.getCursorLocation();
        Rectangle rect = shell.getBounds();
        if (rect.contains(point)) {
          System.out.println("In");
        } else {
          System.out.println("Out");
        }
        display.timerExec(time, this);
      }
    };
    display.timerExec(time, timer);
    shell.setSize(200, 200);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Create two one shot timers (5000 ms, 2000 ms)

/*
 * Display example snippet: create two one shot timers (5000 ms, 2000 ms)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class Snippet60 {
public static void main (String [] args) {
  Display display = new Display ();
  Shell shell = new Shell (display);
  shell.setSize (200, 200);
  shell.open ();
  display.timerExec (5000, new Runnable () {
    public void run () {
      System.out.println ("5000");
    }
  });
  display.timerExec (2000, new Runnable () {
    public void run () {
      System.out.println ("2000");
    }
  });
  while (!shell.isDisposed ()) {
    if (!display.readAndDispatch ()) display.sleep ();
  }
  display.dispose ();
}
}

Display example snippet: get the bounds and client area of a display

/*
 * Display example snippet: get the bounds and client area of a display
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.widgets.Display;
public class Snippet42 {
  public static void main(String[] args) {
    Display display = new Display();
    System.out.println("BOUNDS=" + display.getBounds() + " CLIENT="
        + display.getClientArea());
    display.dispose();
  }
}

Display: stop a repeating timer when a button is pressed

/*
 * Display example snippet: stop a repeating timer when a button is pressed
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.RowData;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
public class Snippet68 {
  public static void main(String[] args) {
    final Display display = new Display();
    final Color red = display.getSystemColor(SWT.COLOR_RED);
    final Color blue = display.getSystemColor(SWT.COLOR_BLUE);
    Shell shell = new Shell(display);
    shell.setLayout(new RowLayout());
    Button button = new Button(shell, SWT.PUSH);
    button.setText("Stop Timer");
    final Label label = new Label(shell, SWT.BORDER);
    label.setBackground(red);
    final int time = 500;
    final Runnable timer = new Runnable() {
      public void run() {
        if (label.isDisposed())
          return;
        Color color = label.getBackground().equals(red) ? blue : red;
        label.setBackground(color);
        display.timerExec(time, this);
      }
    };
    display.timerExec(time, timer);
    button.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event event) {
        display.timerExec(-1, timer);
      }
    });
    button.pack();
    label.setLayoutData(new RowData(button.getSize()));
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

HelloWorld Display

/******************************************************************************
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * All right reserved. 
 * 
 * Created on Jan 15, 2004 1:22:06 AM by JACK
 * $Id$
 * 
 * visit: http://www.asprise.ru/swt
 *****************************************************************************/

import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class HelloWorldDisplay {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    
    shell.setText("Hello, world!");
    
    shell.open();
    // Set up the event loop.
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        // If no more entries in event queue
        display.sleep();
      }
    }
    display.dispose();
  }
}

Non Rectangular Window in SWT

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Region;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
public class NonRectangularClass {
  static int[] createCircle(int xOffset, int yOffset, int radius) {
    int[] circlePoints = new int[10 * radius];
    for (int loopIndex = 0; loopIndex < 2 * radius + 1; loopIndex++) {
      int xCurrent = loopIndex - radius;
      int yCurrent = (int) Math.sqrt(radius * radius - xCurrent
          * xCurrent);
      int doubleLoopIndex = 2 * loopIndex;
      circlePoints[doubleLoopIndex] = xCurrent + xOffset;
      circlePoints[doubleLoopIndex + 1] = yCurrent + yOffset;
      circlePoints[10 * radius - doubleLoopIndex - 2] = xCurrent
          + xOffset;
      circlePoints[10 * radius - doubleLoopIndex - 1] = -yCurrent
          + yOffset;
    }
    return circlePoints;
  }
  public static void main(String[] args) {
    final Display display = new Display();
    final Shell shell = new Shell(display, SWT.NO_TRIM);
    Region region = new Region();
    region.add(createCircle(50, 50, 50));
    region.subtract(createCircle(50, 50, 20));
    shell.setRegion(region);
    shell.setSize(region.getBounds().width, region.getBounds().height);
    shell.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
    Button button = new Button(shell, SWT.PUSH);
    button.setText("Exit");
    button.setBounds(35, 6, 35, 20);
    button.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event event) {
        shell.close();
      }
    });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    region.dispose();
    display.dispose();
  }
}

Open a shell maximized (full screen)

/*
 * Shell example snippet: open a shell maximized (full screen)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class Snippet28 {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setMaximized(true);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Open a shell minimized (iconified)

/*
 * Shell example snippet: open a shell minimized (iconified)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class Snippet27 {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setMinimized(true);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Prevent a shell from closing (prompt the user)

/*
 * Shell example snippet: prevent a shell from closing (prompt the user)
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
public class Snippet99 {
  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.addListener(SWT.Close, new Listener() {
      public void handleEvent(Event event) {
        int style = SWT.APPLICATION_MODAL | SWT.YES | SWT.NO;
        MessageBox messageBox = new MessageBox(shell, style);
        messageBox.setText("Information");
        messageBox.setMessage("Close the shell?");
        event.doit = messageBox.open() == SWT.YES;
      }
    });
    shell.pack();
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

Professional Shell

import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.*;
public class ProfessionalShell {
    
     ProfessionalShell()    {
        Display d = new Display();
        Shell s = new Shell(d);
        s.setSize(500,500);
        s.setImage(new Image(d, "jexp.gif"));
        s.setText("A Shell Example");
        s.open();
        while(!s.isDisposed()){
            if(!d.readAndDispatch())
                d.sleep();
        }
        d.dispose();
    }
   public static void main(String[] argv) {
     new ProfessionalShell();
  }
     
}

Ring Shell

/******************************************************************************
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * All right reserved. 
 * 
 * Created on Jan 25, 2004 7:58:06 PM by JACK
 * $Id$
 * 
 * visit: http://www.asprise.ru/swt
 *****************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.events.MouseMoveListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.graphics.Region;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class RingShell {
  
  int[] createCircle(int radius, int centerX, int centerY) {
    int[] points = new int[360 * 2];
    for(int i=0; i<360; i++) {
      points[i*2] = centerX + (int)(radius * Math.cos(Math.toRadians(i)));
      points[i*2+1] = centerY + (int)(radius * Math.sin(Math.toRadians(i)));
    }
    return points;
  }
  
  Point originalPosition = null;
  public RingShell() {
    final Display display = new Display();
    final Shell shell = new Shell(display, SWT.NO_TRIM | SWT.ON_TOP);
    shell.setBackground(display.getSystemColor(SWT.COLOR_DARK_MAGENTA));
    
    Region region = new Region();
    region.add(createCircle(100, 100, 100));
    region.subtract(createCircle(50, 100, 100));
    shell.setRegion(region);
    
    // Make the shell movable by using the mouse pointer. 
    shell.addMouseListener(new MouseListener() {
      public void mouseDoubleClick(MouseEvent e) {
        shell.dispose(); // Double click to dispose the shell.
      }
      public void mouseDown(MouseEvent e) {
        originalPosition = new Point(e.x, e.y);
      }
      public void mouseUp(MouseEvent e) {
        originalPosition = null;
      }
    });
    
    shell.addMouseMoveListener(new MouseMoveListener() {
      public void mouseMove(MouseEvent e) {
        if(originalPosition == null)
          return;
        Point point = display.map(shell, null, e.x, e.y);
        shell.setLocation(point.x - originalPosition.x, point.y - originalPosition.y);
        System.out.println("Moved from: " + originalPosition + " to " + point);
      }
    });
    
    Rectangle regionBounds = region.getBounds();
    shell.setSize(regionBounds.width, regionBounds.height);
    shell.open();
    // Set up the event loop.
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        // If no more entries in event queue
        display.sleep();
      }
    }
    display.dispose();
    region.dispose();
  }
  
  public static void main(String[] args) {
    new RingShell();
  }
}

Shell Style

/******************************************************************************
 * Copyright (c) 1998, 2004 Jackwind Li Guojie
 * All right reserved. 
 * 
 * Created on Jan 25, 2004 4:28:59 PM by JACK
 * $Id$
 * 
 * visit: http://www.asprise.ru/swt
 *****************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class ShellTrim {
  Display display = new Display();
  Shell shell = new Shell(display, SWT.SHELL_TRIM | SWT.TOOL);
  //Shell shell = new Shell(display, SWT.NO_TRIM);
  // Shell shell = new Shell(display, SWT.MAX);
  public ShellTrim() {
    init();
    
    shell.setText("Style: SHELL_TRIM | TOOL");
    shell.pack();
    shell.open();
    
    Shell shell2 = new Shell();
    shell2.pack();
    shell2.open();
    //textUser.forceFocus();
    // Set up the event loop.
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        // If no more entries in event queue
        display.sleep();
      }
    }
    display.dispose();
  }
  private void init() {
  }
  public static void main(String[] args) {
    new ShellTrim();
  }
}

Shell Styles Example

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class ShellStylesExample {
  ShellStylesExample() {
    Display d = new Display();
    Shell s = new Shell(d, SWT.CLOSE | SWT.RESIZE);
    s.setSize(300, 300);
    s.open();
    while (!s.isDisposed()) {
      if (!d.readAndDispatch())
        d.sleep();
    }
    d.dispose();
  }
  public static void main() {
    new ShellStylesExample();
  }
}

Shows the various styles of Decorations

//Send questions, comments, bug reports, etc. to the authors:
//Rob Warner (rwarner@interspatial.ru)
//Robert Harris (rbrt_harris@yahoo.ru)
import org.eclipse.swt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
/**
 * This application shows the various styles of Decorations
 */
public class DecorationsExample {
  /**
   * Runs the application
   */
  public void run() {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("Decorations Example");
    createContents(shell);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
  /**
   * Creates the various Decorations
   * 
   * @param composite the parent composite
   */
  public void createContents(Composite composite) {
    // There are nine distinct styles, so create
    // a 3x3 grid
    composite.setLayout(new GridLayout(3, true));
    // The SWT.BORDER style
    Decorations d = new Decorations(composite, SWT.BORDER);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.BORDER");
    // The SWT.CLOSE style
    d = new Decorations(composite, SWT.CLOSE);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.CLOSE");
    // The SWT.MIN style
    d = new Decorations(composite, SWT.MIN);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.MIN");
    // The SWT.MAX style
    d = new Decorations(composite, SWT.MAX);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.MAX");
    // The SWT.NO_TRIM style
    d = new Decorations(composite, SWT.NO_TRIM);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.NO_TRIM");
    // The SWT.RESIZE style
    d = new Decorations(composite, SWT.RESIZE);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.RESIZE");
    // The SWT.TITLE style
    d = new Decorations(composite, SWT.TITLE);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.TITLE");
    // The SWT.ON_TOP style
    d = new Decorations(composite, SWT.ON_TOP);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.ON_TOP");
    // The SWT.TOOL style
    d = new Decorations(composite, SWT.TOOL);
    d.setLayoutData(new GridData(GridData.FILL_BOTH));
    d.setLayout(new FillLayout());
    new Label(d, SWT.CENTER).setText("SWT.TOOL");
  }
  /**
   * The entry point for the application
   * 
   * @param args the command line arguments
   */
  public static void main(String[] args) {
    new DecorationsExample().run();
  }
}

Simplest SWT

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class HelloSWT {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("My First SWT GUI");
    shell.setSize(200, 100);
    Text helloText = new Text(shell, SWT.CENTER);
    helloText.setText("Hello SWT!");
    helloText.setBounds(47, 20, 100, 20);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

SWT Composite Class

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.ruposite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
public class CompositeClass {
  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    shell.setSize(300, 300);
    shell.setLayout(new RowLayout());
    shell.setText("Composite Example");
    final Composite composite = new Composite(shell, SWT.NONE);
    GridLayout gridLayout = new GridLayout();
    gridLayout.numColumns = 4;
    composite.setLayout(gridLayout);
    for (int loopIndex = 0; loopIndex < 28; loopIndex++) {
      Label label = new Label(composite, SWT.SHADOW_NONE);
      label.setText("Label " + loopIndex);
    }
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}

SWT Shell : create a non-rectangular window

/*
 * Shell example snippet: create a non-rectangular window
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.graphics.Region;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
public class Snippet134 {
  static int[] circle(int r, int offsetX, int offsetY) {
    int[] polygon = new int[8 * r + 4];
    // x^2 + y^2 = r^2
    for (int i = 0; i < 2 * r + 1; i++) {
      int x = i - r;
      int y = (int) Math.sqrt(r * r - x * x);
      polygon[2 * i] = offsetX + x;
      polygon[2 * i + 1] = offsetY + y;
      polygon[8 * r - 2 * i - 2] = offsetX + x;
      polygon[8 * r - 2 * i - 1] = offsetY - y;
    }
    return polygon;
  }
  public static void main(String[] args) {
    final Display display = new Display();
    // Shell must be created with style SWT.NO_TRIM
    final Shell shell = new Shell(display, SWT.NO_TRIM | SWT.ON_TOP);
    shell.setBackground(display.getSystemColor(SWT.COLOR_RED));
    // define a region that looks like a key hole
    Region region = new Region();
    region.add(circle(67, 67, 67));
    region.subtract(circle(20, 67, 50));
    region.subtract(new int[] { 67, 50, 55, 105, 79, 105 });
    // define the shape of the shell using setRegion
    shell.setRegion(region);
    Rectangle size = region.getBounds();
    shell.setSize(size.width, size.height);
    // add ability to move shell around
    Listener l = new Listener() {
      Point origin;
      public void handleEvent(Event e) {
        switch (e.type) {
        case SWT.MouseDown:
          origin = new Point(e.x, e.y);
          break;
        case SWT.MouseUp:
          origin = null;
          break;
        case SWT.MouseMove:
          if (origin != null) {
            Point p = display.map(shell, null, e.x, e.y);
            shell.setLocation(p.x - origin.x, p.y - origin.y);
          }
          break;
        }
      }
    };
    shell.addListener(SWT.MouseDown, l);
    shell.addListener(SWT.MouseUp, l);
    shell.addListener(SWT.MouseMove, l);
    // add ability to close shell
    Button b = new Button(shell, SWT.PUSH);
    b.setBackground(shell.getBackground());
    b.setText("close");
    b.pack();
    b.setLocation(10, 68);
    b.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event e) {
        shell.close();
      }
    });
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    region.dispose();
    display.dispose();
  }
}

Widget Test

/*******************************************************************************
 * Copyright (c) 2004 Berthold Daum. All rights reserved. This program and the
 * accompanying materials are made available under the terms of the Common
 * Public License v1.0 which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors: Berthold Daum
 ******************************************************************************/
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class widgetTest {
  public static void main(String[] args) {
    // Create Display instance
    final Display display = new Display();
    // Create top level Shell (pass display as parent)
    final Shell toplevelShell = new Shell(display);
    // Set title line
    toplevelShell.setText("TopLevel.Titelzeile");
    // Display shell
    toplevelShell.open();
    // Create a dialog shell (pass toplevelShell as parent)
    final Shell dialogShell = new Shell(toplevelShell);
    // Set title line
    dialogShell.setText("Dialog.Titelzeile");
    // Display shell
    dialogShell.open();
    // Wait until top level shell is closed
    while (!toplevelShell.isDisposed()) {
      // Check for waiting events
      if (!display.readAndDispatch())
        display.sleep();
    }
  }
}

Java/SWT JFace Eclipse/Shell Display — различия между версиями

Текущая версия на 05:55, 1 июня 2010

Содержание

Child Shell Example

Child Shell Example 2

Child Shell Example 3

Complex Shell Example

Composite Shell Example 2

Create and dispose children of a composite

Create a non-rectangular shell to simulate transparency

Create a splash screen in SWT

Create one repeating timer (every 500 ms)

Create two one shot timers (5000 ms, 2000 ms)

Display example snippet: get the bounds and client area of a display

Display: stop a repeating timer when a button is pressed

HelloWorld Display

Non Rectangular Window in SWT

Open a shell maximized (full screen)

Open a shell minimized (iconified)

Prevent a shell from closing (prompt the user)

Professional Shell

Ring Shell

Shell Style

Shell Styles Example

Shows the various styles of Decorations

Simplest SWT

SWT Composite Class

SWT Shell : create a non-rectangular window

Widget Test

Навигация

Персональные инструменты

Пространства имён

Варианты

Просмотры

Ещё

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Инструменты

Версия 18:01, 31 мая 2010 (просмотреть исходный код) (обсуждение)	Текущая версия на 05:55, 1 июня 2010 (просмотреть исходный код) Admin (обсуждение \| вклад) м (1 версия)
(нет различий)