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Java by API/java.awt.datatransfer/Clipboard - История изменений
2026-04-11T13:16:41Z
История изменений этой страницы в вики
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http://jexp.ru/index.php?title=Java_by_API/java.awt.datatransfer/Clipboard&diff=2335&oldid=prev
в 17:43, 31 мая 2010
2010-05-31T17:43:48Z
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 17:43, 31 мая 2010</td>
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http://jexp.ru/index.php?title=Java_by_API/java.awt.datatransfer/Clipboard&diff=2336&oldid=prev
Admin: 1 версия
2010-05-31T14:44:18Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Clipboard: getContents(Object requestor) ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import java.awt.Button;<br />
import java.awt.Frame;<br />
import java.awt.GridBagConstraints;<br />
import java.awt.GridBagLayout;<br />
import java.awt.TextArea;<br />
import java.awt.datatransfer.Clipboard;<br />
import java.awt.datatransfer.ClipboardOwner;<br />
import java.awt.datatransfer.DataFlavor;<br />
import java.awt.datatransfer.StringSelection;<br />
import java.awt.datatransfer.Transferable;<br />
import java.awt.event.ActionEvent;<br />
import java.awt.event.ActionListener;<br />
/** Taken from the Sun documentation on Clipboard API */<br />
public class MainClass extends Frame implements ClipboardOwner, ActionListener {<br />
TextArea srcText, dstText;<br />
Button copyButton, pasteButton;<br />
Clipboard clipboard = getToolkit().getSystemClipboard();<br />
public MainClass() {<br />
super("Clipboard Test");<br />
GridBagLayout gridbag = new GridBagLayout();<br />
GridBagConstraints c = new GridBagConstraints();<br />
setLayout(gridbag);<br />
srcText = new TextArea(8, 32);<br />
c.gridwidth = 2;<br />
c.anchor = GridBagConstraints.CENTER;<br />
gridbag.setConstraints(srcText, c);<br />
add(srcText);<br />
copyButton = new Button("Copy Above");<br />
copyButton.setActionCommand("copy");<br />
copyButton.addActionListener(this);<br />
c.gridy = 1;<br />
c.gridwidth = 1;<br />
gridbag.setConstraints(copyButton, c);<br />
add(copyButton);<br />
pasteButton = new Button("Paste Below");<br />
pasteButton.setActionCommand("paste");<br />
pasteButton.addActionListener(this);<br />
pasteButton.setEnabled(false);<br />
c.gridx = 1;<br />
gridbag.setConstraints(pasteButton, c);<br />
add(pasteButton);<br />
dstText = new TextArea(8, 32);<br />
c.gridx = 0;<br />
c.gridy = 2;<br />
c.gridwidth = 2;<br />
gridbag.setConstraints(dstText, c);<br />
add(dstText);<br />
pack();<br />
}<br />
public void actionPerformed(ActionEvent evt) {<br />
String cmd = evt.getActionCommand();<br />
if (cmd.equals("copy")) {<br />
// Implement Copy operation<br />
String srcData = srcText.getText();<br />
if (srcData != null) {<br />
StringSelection contents = new StringSelection(srcData);<br />
clipboard.setContents(contents, this);<br />
pasteButton.setEnabled(true);<br />
}<br />
} else if (cmd.equals("paste")) {<br />
// Implement Paste operation<br />
Transferable content = clipboard.getContents(this);<br />
if (content != null) {<br />
try {<br />
String dstData = (String) content.getTransferData(DataFlavor.stringFlavor);<br />
dstText.append(dstData);<br />
} catch (Exception e) {<br />
System.out.println("Couldn"t get contents in format: "<br />
+ DataFlavor.stringFlavor.getHumanPresentableName());<br />
}<br />
}<br />
}<br />
}<br />
public void lostOwnership(Clipboard clipboard, Transferable contents) {<br />
System.out.println("Clipboard contents replaced");<br />
}<br />
public static void main(String[] args) {<br />
MainClass test = new MainClass();<br />
test.setVisible(true);<br />
}<br />
}<br />
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</source><br />
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<!-- end source code --><br />
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== Clipboard: setContents(Transferable contents, ClipboardOwner owner) ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import java.awt.Button;<br />
import java.awt.Frame;<br />
import java.awt.GridBagConstraints;<br />
import java.awt.GridBagLayout;<br />
import java.awt.TextArea;<br />
import java.awt.datatransfer.Clipboard;<br />
import java.awt.datatransfer.ClipboardOwner;<br />
import java.awt.datatransfer.DataFlavor;<br />
import java.awt.datatransfer.StringSelection;<br />
import java.awt.datatransfer.Transferable;<br />
import java.awt.event.ActionEvent;<br />
import java.awt.event.ActionListener;<br />
/** Taken from the Sun documentation on Clipboard API */<br />
public class MainClass extends Frame implements ClipboardOwner, ActionListener {<br />
TextArea srcText, dstText;<br />
Button copyButton, pasteButton;<br />
Clipboard clipboard = getToolkit().getSystemClipboard();<br />
public MainClass() {<br />
super("Clipboard Test");<br />
GridBagLayout gridbag = new GridBagLayout();<br />
GridBagConstraints c = new GridBagConstraints();<br />
setLayout(gridbag);<br />
srcText = new TextArea(8, 32);<br />
c.gridwidth = 2;<br />
c.anchor = GridBagConstraints.CENTER;<br />
gridbag.setConstraints(srcText, c);<br />
add(srcText);<br />
copyButton = new Button("Copy Above");<br />
copyButton.setActionCommand("copy");<br />
copyButton.addActionListener(this);<br />
c.gridy = 1;<br />
c.gridwidth = 1;<br />
gridbag.setConstraints(copyButton, c);<br />
add(copyButton);<br />
pasteButton = new Button("Paste Below");<br />
pasteButton.setActionCommand("paste");<br />
pasteButton.addActionListener(this);<br />
pasteButton.setEnabled(false);<br />
c.gridx = 1;<br />
gridbag.setConstraints(pasteButton, c);<br />
add(pasteButton);<br />
dstText = new TextArea(8, 32);<br />
c.gridx = 0;<br />
c.gridy = 2;<br />
c.gridwidth = 2;<br />
gridbag.setConstraints(dstText, c);<br />
add(dstText);<br />
pack();<br />
}<br />
public void actionPerformed(ActionEvent evt) {<br />
String cmd = evt.getActionCommand();<br />
if (cmd.equals("copy")) {<br />
// Implement Copy operation<br />
String srcData = srcText.getText();<br />
if (srcData != null) {<br />
StringSelection contents = new StringSelection(srcData);<br />
clipboard.setContents(contents, this);<br />
pasteButton.setEnabled(true);<br />
}<br />
} else if (cmd.equals("paste")) {<br />
// Implement Paste operation<br />
Transferable content = clipboard.getContents(this);<br />
if (content != null) {<br />
try {<br />
String dstData = (String) content.getTransferData(DataFlavor.stringFlavor);<br />
dstText.append(dstData);<br />
} catch (Exception e) {<br />
System.out.println("Couldn"t get contents in format: "<br />
+ DataFlavor.stringFlavor.getHumanPresentableName());<br />
}<br />
}<br />
}<br />
}<br />
public void lostOwnership(Clipboard clipboard, Transferable contents) {<br />
System.out.println("Clipboard contents replaced");<br />
}<br />
public static void main(String[] args) {<br />
MainClass test = new MainClass();<br />
test.setVisible(true);<br />
}<br />
}<br />
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</source><br />
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<!-- end source code --></div>
Admin