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Java Tutorial/SWT/ControlEditor - История изменений
2026-04-21T14:07:49Z
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в 17:44, 31 мая 2010
2010-05-31T17:44:26Z
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Admin: 1 версия
2010-05-31T15:21:18Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Control Editors ==<br />
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<p>ControlEditor offers basic control-editing abilities.<br />
It has three derived classes: TableEditor, TreeEditor, and TableTreeEditor.</p><br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
import java.util.HashMap;<br />
import java.util.Map;<br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.custom.ControlEditor;<br />
import org.eclipse.swt.events.ModifyEvent;<br />
import org.eclipse.swt.events.ModifyListener;<br />
import org.eclipse.swt.graphics.Color;<br />
import org.eclipse.swt.graphics.Point;<br />
import org.eclipse.swt.graphics.RGB;<br />
import org.eclipse.swt.widgets.ruposite;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
import org.eclipse.swt.widgets.Text;<br />
public class ControlEditorSample {<br />
private static final Map COLORS = new HashMap();<br />
static {<br />
COLORS.put("red", new RGB(255, 0, 0));<br />
COLORS.put("green", new RGB(0, 255, 0));<br />
COLORS.put("blue", new RGB(0, 0, 255));<br />
COLORS.put("yellow", new RGB(255, 255, 0));<br />
COLORS.put("black", new RGB(0, 0, 0));<br />
COLORS.put("white", new RGB(255, 255, 255));<br />
}<br />
static Display display = new Display();<br />
static Color color = new Color(display, 255, 0, 0);<br />
public static void main(String[] args) {<br />
final Shell shell = new Shell(display);<br />
shell.setText("Control Editor");<br />
final Composite composite = new Composite(shell, SWT.NONE);<br />
composite.setBackground(color);<br />
composite.setBounds(0, 0, 300, 100);<br />
ControlEditor editor = new ControlEditor(composite);<br />
final Text text = new Text(composite, SWT.BORDER);<br />
text.addModifyListener(new ModifyListener() {<br />
public void modifyText(ModifyEvent event) {<br />
RGB rgb = (RGB) COLORS.get(text.getText());<br />
if (rgb != null) {<br />
if (color != null)<br />
color.dispose();<br />
color = new Color(shell.getDisplay(), rgb);<br />
composite.setBackground(color);<br />
}<br />
}<br />
});<br />
// Place the editor in the top middle of the parent composite<br />
editor.horizontalAlignment = SWT.CENTER;<br />
editor.verticalAlignment = SWT.TOP;<br />
Point size = text.ruputeSize(SWT.DEFAULT, SWT.DEFAULT);<br />
editor.minimumWidth = size.x;<br />
editor.minimumHeight = size.y;<br />
editor.setEditor(text);<br />
shell.pack();<br />
shell.open();<br />
while (!shell.isDisposed()) {<br />
if (!display.readAndDispatch()) {<br />
display.sleep();<br />
}<br />
}<br />
if (color != null)<br />
color.dispose();<br />
display.dispose();<br />
}<br />
}</source><br />
<br />
<br />
<!-- end source code --><br />
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<br />
== Control Editor With Dialog ==<br />
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<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.custom.ControlEditor;<br />
import org.eclipse.swt.events.SelectionAdapter;<br />
import org.eclipse.swt.events.SelectionEvent;<br />
import org.eclipse.swt.graphics.Color;<br />
import org.eclipse.swt.graphics.Point;<br />
import org.eclipse.swt.graphics.RGB;<br />
import org.eclipse.swt.widgets.Button;<br />
import org.eclipse.swt.widgets.ColorDialog;<br />
import org.eclipse.swt.widgets.ruposite;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
public class ControlEditorWithDialog {<br />
static Display display = new Display();<br />
static Color color = new Color(display, 255, 0, 0);<br />
public static void main(String[] args) {<br />
final Shell shell = new Shell(display);<br />
shell.setText("Control Editor Two");<br />
final Composite composite = new Composite(shell, SWT.NONE);<br />
composite.setBackground(color);<br />
composite.setBounds(0, 0, 300, 100);<br />
ControlEditor editor = new ControlEditor(composite);<br />
// Create the control associated with the editor<br />
Button button = new Button(composite, SWT.PUSH);<br />
button.setText("Change Color...");<br />
button.addSelectionListener(new SelectionAdapter() {<br />
public void widgetSelected(SelectionEvent event) {<br />
ColorDialog dialog = new ColorDialog(shell);<br />
if (color != null)<br />
dialog.setRGB(color.getRGB());<br />
RGB rgb = dialog.open();<br />
if (rgb != null) {<br />
if (color != null)<br />
color.dispose();<br />
color = new Color(shell.getDisplay(), rgb);<br />
composite.setBackground(color);<br />
}<br />
}<br />
});<br />
// Place the editor along the bottom of the parent composite<br />
editor.grabHorizontal = true;<br />
editor.verticalAlignment = SWT.BOTTOM;<br />
Point size = button.ruputeSize(SWT.DEFAULT, SWT.DEFAULT);<br />
editor.minimumHeight = size.y;<br />
editor.setEditor(button);<br />
shell.pack();<br />
shell.open();<br />
while (!shell.isDisposed()) {<br />
if (!display.readAndDispatch()) {<br />
display.sleep();<br />
}<br />
}<br />
if (color != null)<br />
color.dispose();<br />
display.dispose();<br />
}<br />
}</source><br />
<br />
<br />
<!-- end source code --></div>
Admin