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SWT Clipboard Example
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
plain
text");
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
rtf
text");
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;
}
