Java Forums
Register Today's Posts Search Today's Posts Mark Forums Read

Main Menu
Home
Today's Posts
FAQ
Search
Contact Us

Java Network
Linux Archive
Java Tips
Java Tips Blog

Sponsored Links





Welcome to the Java Forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community, you will:

  • have access to post topics
  • communicate privately with other members (PM)
  • not see advertisements between posts
  • have the possibility to earn one of our surprises if you are an active member
  • access many other special features that will be introduced later.

Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact us.
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 07-07-2008, 06:34 PM
Moderator
  
Join Date: Nov 2007
Posts: 1,657
Java Tip will become famous soon enoughJava Tip will become famous soon enough
SWT Clipboard Example
Code:
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.dnd.ByteArrayTransfer;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.swt.dnd.HTMLTransfer;
import org.eclipse.swt.dnd.RTFTransfer;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.dnd.TransferData;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.DirectoryDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.List;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.swt.widgets.Text;

public class ClipboardExample {

  Clipboard clipboard;

  Shell shell;

  Text copyText;

  Text pasteText;

  Text copyRtfText;

  Text pasteRtfText;

  Text copyHtmlText;

  Text pasteHtmlText;

  Table copyFileTable;

  Table pasteFileTable;

  Text text;

  Combo combo;

  StyledText styledText;

  Label status;

  static final int SIZE = 60;

  public static void main(String[] args) {
    Display display = new Display();
    new ClipboardExample().open(display);
    display.dispose();
  }

  public void open(Display display) {
    clipboard = new Clipboard(display);
    shell = new Shell(display);
    shell.setText("SWT Clipboard");
    shell.setLayout(new FillLayout());

    ScrolledComposite sc = new ScrolledComposite(shell, SWT.H_SCROLL
        | SWT.V_SCROLL);
    Composite parent = new Composite(sc, SWT.NONE);
    sc.setContent(parent);
    parent.setLayout(new GridLayout(2, true));

    Group copyGroup = new Group(parent, SWT.NONE);
    copyGroup.setText("Copy From:");
    GridData data = new GridData(GridData.FILL_BOTH);
    copyGroup.setLayoutData(data);
    copyGroup.setLayout(new GridLayout(3, false));

    Group pasteGroup = new Group(parent, SWT.NONE);
    pasteGroup.setText("Paste To:");
    data = new GridData(GridData.FILL_BOTH);
    pasteGroup.setLayoutData(data);
    pasteGroup.setLayout(new GridLayout(3, false));

    Group controlGroup = new Group(parent, SWT.NONE);
    controlGroup.setText("Control API:");
    data = new GridData(GridData.FILL_BOTH);
    data.horizontalSpan = 2;
    controlGroup.setLayoutData(data);
    controlGroup.setLayout(new GridLayout(5, false));

    Group typesGroup = new Group(parent, SWT.NONE);
    typesGroup.setText("Available Types");
    data = new GridData(GridData.FILL_BOTH);
    data.horizontalSpan = 2;
    typesGroup.setLayoutData(data);
    typesGroup.setLayout(new GridLayout(2, false));

    status = new Label(parent, SWT.BORDER);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.horizontalSpan = 2;
    data.heightHint = 60;
    status.setLayoutData(data);

    createTextTransfer(copyGroup, pasteGroup);
    createRTFTransfer(copyGroup, pasteGroup);
    createHTMLTransfer(copyGroup, pasteGroup);
    createFileTransfer(copyGroup, pasteGroup);
    createMyTransfer(copyGroup, pasteGroup);
    createControlTransfer(controlGroup);
    createAvailableTypes(typesGroup);

    sc.setMinSize(parent.computeSize(SWT.DEFAULT, SWT.DEFAULT));
    sc.setExpandHorizontal(true);
    sc.setExpandVertical(true);

    Point size = shell.computeSize(SWT.DEFAULT, SWT.DEFAULT);
    Rectangle monitorArea = shell.getMonitor().getClientArea();
    shell.setSize(Math.min(size.x, monitorArea.width - 20), Math.min(
        size.y, monitorArea.height - 20));
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    clipboard.dispose();
  }

  void createTextTransfer(Composite copyParent, Composite pasteParent) {

    // TextTransfer
    Label l = new Label(copyParent, SWT.NONE);
    l.setText("TextTransfer:"); //$NON-NLS-1$
    copyText = new Text(copyParent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL
        | SWT.H_SCROLL);
    copyText.setText("some\nplain\ntext");
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    copyText.setLayoutData(data);
    Button b = new Button(copyParent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String data = copyText.getText();
        if (data.length() > 0) {
          status.setText("");
          clipboard.setContents(new Object[] { data },
              new Transfer[] { TextTransfer.getInstance() });
        } else {
          status.setText("nothing to copy");
        }
      }
    });

    l = new Label(pasteParent, SWT.NONE);
    l.setText("TextTransfer:"); //$NON-NLS-1$
    pasteText = new Text(pasteParent, SWT.READ_ONLY | SWT.MULTI
        | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    pasteText.setLayoutData(data);
    b = new Button(pasteParent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String data = (String) clipboard.getContents(TextTransfer
            .getInstance());
        if (data != null && data.length() > 0) {
          status.setText("");
          pasteText.setText("begin paste>" + data + "<end paste");
        } else {
          status.setText("nothing to paste");
        }
      }
    });
  }

  void createRTFTransfer(Composite copyParent, Composite pasteParent) {
    // RTF Transfer
    Label l = new Label(copyParent, SWT.NONE);
    l.setText("RTFTransfer:"); //$NON-NLS-1$
    copyRtfText = new Text(copyParent, SWT.MULTI | SWT.BORDER
        | SWT.V_SCROLL | SWT.H_SCROLL);
    copyRtfText.setText("some\nrtf\ntext");
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    copyRtfText.setLayoutData(data);
    Button b = new Button(copyParent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String data = copyRtfText.getText();
        if (data.length() > 0) {
          status.setText("");
          data = "{\\rtf1{\\colortbl;\\red255\\green0\\blue0;}\\uc1\\b\\i "
              + data + "}";
          clipboard.setContents(new Object[] { data },
              new Transfer[] { RTFTransfer.getInstance() });
        } else {
          status.setText("nothing to copy");
        }
      }
    });

    l = new Label(pasteParent, SWT.NONE);
    l.setText("RTFTransfer:"); //$NON-NLS-1$
    pasteRtfText = new Text(pasteParent, SWT.READ_ONLY | SWT.MULTI
        | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    pasteRtfText.setLayoutData(data);
    b = new Button(pasteParent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String data = (String) clipboard.getContents(RTFTransfer
            .getInstance());
        if (data != null && data.length() > 0) {
          status.setText("");
          pasteRtfText.setText("start paste>" + data + "<end paste");
        } else {
          status.setText("nothing to paste");
        }
      }
    });
  }

  void createHTMLTransfer(Composite copyParent, Composite pasteParent) {
    // HTML Transfer
    Label l = new Label(copyParent, SWT.NONE);
    l.setText("HTMLTransfer:"); //$NON-NLS-1$
    copyHtmlText = new Text(copyParent, SWT.MULTI | SWT.BORDER
        | SWT.V_SCROLL | SWT.H_SCROLL);
    copyHtmlText.setText("<b>Hello World</b>");
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    copyHtmlText.setLayoutData(data);
    Button b = new Button(copyParent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String data = copyHtmlText.getText();
        if (data.length() > 0) {
          status.setText("");
          clipboard.setContents(new Object[] { data },
              new Transfer[] { HTMLTransfer.getInstance() });
        } else {
          status.setText("nothing to copy");
        }
      }
    });

    l = new Label(pasteParent, SWT.NONE);
    l.setText("HTMLTransfer:"); //$NON-NLS-1$
    pasteHtmlText = new Text(pasteParent, SWT.READ_ONLY | SWT.MULTI
        | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    pasteHtmlText.setLayoutData(data);
    b = new Button(pasteParent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String data = (String) clipboard.getContents(HTMLTransfer
            .getInstance());
        if (data != null && data.length() > 0) {
          status.setText("");
          pasteHtmlText.setText("start paste>" + data + "<end paste");
        } else {
          status.setText("nothing to paste");
        }
      }
    });
  }

  void createFileTransfer(Composite copyParent, Composite pasteParent) {
    // File Transfer
    Label l = new Label(copyParent, SWT.NONE);
    l.setText("FileTransfer:"); //$NON-NLS-1$

    Composite c = new Composite(copyParent, SWT.NONE);
    c.setLayout(new GridLayout(2, false));
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    c.setLayoutData(data);

    copyFileTable = new Table(c, SWT.MULTI | SWT.BORDER);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    data.horizontalSpan = 2;
    copyFileTable.setLayoutData(data);

    Button b = new Button(c, SWT.PUSH);
    b.setText("Select file(s)");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        FileDialog dialog = new FileDialog(shell, SWT.OPEN | SWT.MULTI);
        String result = dialog.open();
        if (result != null && result.length() > 0) {
          // copyFileTable.removeAll();
          String separator = System.getProperty("file.separator");
          String path = dialog.getFilterPath();
          String[] names = dialog.getFileNames();
          for (int i = 0; i < names.length; i++) {
            TableItem item = new TableItem(copyFileTable, SWT.NONE);
            item.setText(path + separator + names[i]);
          }
        }
      }
    });
    b = new Button(c, SWT.PUSH);
    b.setText("Select directory");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        DirectoryDialog dialog = new DirectoryDialog(shell, SWT.OPEN);
        String result = dialog.open();
        if (result != null && result.length() > 0) {
          // copyFileTable.removeAll();
          TableItem item = new TableItem(copyFileTable, SWT.NONE);
          item.setText(result);
        }
      }
    });

    b = new Button(copyParent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        TableItem[] items = copyFileTable.getItems();
        if (items.length > 0) {
          status.setText("");
          String[] data = new String[items.length];
          for (int i = 0; i < data.length; i++) {
            data[i] = items[i].getText();
          }
          clipboard.setContents(new Object[] { data },
              new Transfer[] { FileTransfer.getInstance() });
        } else {
          status.setText("nothing to copy");
        }
      }
    });

    l = new Label(pasteParent, SWT.NONE);
    l.setText("FileTransfer:"); //$NON-NLS-1$
    pasteFileTable = new Table(pasteParent, SWT.MULTI | SWT.BORDER);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    pasteFileTable.setLayoutData(data);
    b = new Button(pasteParent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        String[] data = (String[]) clipboard.getContents(FileTransfer
            .getInstance());
        if (data != null && data.length > 0) {
          status.setText("");
          pasteFileTable.removeAll();
          for (int i = 0; i < data.length; i++) {
            TableItem item = new TableItem(pasteFileTable, SWT.NONE);
            item.setText(data[i]);
          }
        } else {
          status.setText("nothing to paste");
        }
      }
    });
  }

  void createMyTransfer(Composite copyParent, Composite pasteParent) {
    // MyType Transfer
    // TODO
  }

  void createControlTransfer(Composite parent) {
    Label l = new Label(parent, SWT.NONE);
    l.setText("Text:");
    Button b = new Button(parent, SWT.PUSH);
    b.setText("Cut");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        text.cut();
      }
    });
    b = new Button(parent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        text.copy();
      }
    });
    b = new Button(parent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        text.paste();
      }
    });
    text = new Text(parent, SWT.BORDER | SWT.MULTI | SWT.H_SCROLL
        | SWT.V_SCROLL);
    GridData data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    text.setLayoutData(data);

    l = new Label(parent, SWT.NONE);
    l.setText("Combo:");
    b = new Button(parent, SWT.PUSH);
    b.setText("Cut");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        combo.cut();
      }
    });
    b = new Button(parent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        combo.copy();
      }
    });
    b = new Button(parent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        combo.paste();
      }
    });
    combo = new Combo(parent, SWT.NONE);
    combo.setItems(new String[] { "Item 1", "Item 2", "Item 3",
        "A longer Item" });

    l = new Label(parent, SWT.NONE);
    l.setText("StyledText:");
    l = new Label(parent, SWT.NONE);
    l.setVisible(false);
    b = new Button(parent, SWT.PUSH);
    b.setText("Copy");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        styledText.copy();
      }
    });
    b = new Button(parent, SWT.PUSH);
    b.setText("Paste");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        styledText.paste();
      }
    });
    styledText = new StyledText(parent, SWT.BORDER | SWT.MULTI
        | SWT.H_SCROLL | SWT.V_SCROLL);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.heightHint = data.widthHint = SIZE;
    styledText.setLayoutData(data);
  }

  void createAvailableTypes(Composite parent) {
    final List list = new List(parent, SWT.BORDER | SWT.H_SCROLL
        | SWT.V_SCROLL);
    GridData data = new GridData(GridData.FILL_BOTH);
    data.heightHint = 100;
    list.setLayoutData(data);
    Button b = new Button(parent, SWT.PUSH);
    b.setText("Get Available Types");
    b.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        list.removeAll();
        String[] names = clipboard.getAvailableTypeNames();
        for (int i = 0; i < names.length; i++) {
          list.add(names[i]);
        }
      }
    });
  }
}

/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 ******************************************************************************/
class MyTypeTransfer extends ByteArrayTransfer {

  private static final String MYTYPENAME = "name_list"; //$NON-NLS-1$

  private static final int MYTYPEID = registerType(MYTYPENAME);

  private static MyTypeTransfer _instance = new MyTypeTransfer();

  public static MyTypeTransfer getInstance() {
    return _instance;
  }

  public void javaToNative(Object object, TransferData transferData) {
    if (!checkMyType(object) || !isSupportedType(transferData)) {
      DND.error(DND.ERROR_INVALID_DATA);
    }
    MyType[] myTypes = (MyType[]) object;
    try {
      // write data to a byte array and then ask super to convert to
      // pMedium
      ByteArrayOutputStream out = new ByteArrayOutputStream();
      DataOutputStream writeOut = new DataOutputStream(out);
      for (int i = 0, length = myTypes.length; i < length; i++) {
        byte[] buffer = myTypes[i].firstName.getBytes();
        writeOut.writeInt(buffer.length);
        writeOut.write(buffer);
        buffer = myTypes[i].firstName.getBytes();
        writeOut.writeInt(buffer.length);
        writeOut.write(buffer);
      }
      byte[] buffer = out.toByteArray();
      writeOut.close();
      super.javaToNative(buffer, transferData);
    } catch (IOException e) {
    }
  }

  public Object nativeToJava(TransferData transferData) {
    if (isSupportedType(transferData)) {

      byte[] buffer = (byte[]) super.nativeToJava(transferData);
      if (buffer == null)
        return null;

      MyType[] myData = new MyType[0];
      try {
        ByteArrayInputStream in = new ByteArrayInputStream(buffer);
        DataInputStream readIn = new DataInputStream(in);
        while (readIn.available() > 20) {
          MyType datum = new MyType();
          int size = readIn.readInt();
          byte[] name = new byte[size];
          readIn.read(name);
          datum.firstName = new String(name);
          size = readIn.readInt();
          name = new byte[size];
          readIn.read(name);
          datum.lastName = new String(name);
          MyType[] newMyData = new MyType[myData.length + 1];
          System.arraycopy(myData, 0, newMyData, 0, myData.length);
          newMyData[myData.length] = datum;
          myData = newMyData;
        }
        readIn.close();
      } catch (IOException ex) {
        return null;
      }
      return myData;
    }

    return null;
  }

  protected String[] getTypeNames() {
    return new String[] { MYTYPENAME };
  }

  protected int[] getTypeIds() {
    return new int[] { MYTYPEID };
  }

  boolean checkMyType(Object object) {
    if (object == null || !(object instanceof MyType[])
        || ((MyType[]) object).length == 0)
      return false;
    MyType[] myTypes = (MyType[]) object;
    for (int i = 0; i < myTypes.length; i++) {
      if (myTypes[i] == null || myTypes[i].firstName == null
          || myTypes[i].firstName.length() == 0
          || myTypes[i].lastName == null
          || myTypes[i].lastName.length() == 0)
        return false;
    }
    return true;
  }

  protected boolean validate(Object object) {
    return checkMyType(object);
  }
}

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors: IBM Corporation - initial API and implementation
 ******************************************************************************/
class MyType {
  String firstName;

  String lastName;
}
__________________
Want to make your IDE the best?
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
to our beloved Java Forums! (closes on July 27, 2008)
Bookmark Post in Technorati
Reply With Quote
Sponsored Links
Reply

« First JFace application | Enabling/disabling menu depending on clipboard content availability »

Thread Tools
Display Modes
Linear Mode Linear Mode

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] Creating List of Values Using ClipBoard Object Judoon_Platoon Java Applets 2 05-21-2008 10:07 AM
Using the clipboard Java Tip java.awt.datatransfer 0 04-17-2008 12:52 AM
Sending Image Objects through the Clipboard Java Tip java.awt.datatransfer 0 04-17-2008 12:52 AM


All times are GMT +3. The time now is 08:30 PM.
Contact Us - Java Forums - Sitemap - Top

VBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2007, Crawlability, Inc.
Copyright ©2006 - 2007, www.java-forums.org