Java/SWT JFace Eclipse/Combo
Содержание
Combo (ComboBox) Example
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.rubo; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class SWTComboExample {
Display d;
Shell s;
SWTComboExample() {
d = new Display();
s = new Shell(d);
s.setSize(250, 250);
s.setText("A Combo Example");
final Combo c = new Combo(s, SWT.READ_ONLY);
c.setBounds(50, 50, 150, 65);
String items[] = { "Item One", "Item Two", "Item Three", "Item Four",
"Item Five" };
c.setItems(items);
s.open();
while (!s.isDisposed()) {
if (!d.readAndDispatch())
d.sleep();
}
d.dispose();
}
public static void main(String[] argv) {
new SWTComboExample();
}
}
</source>
Combo (ComboBox) Example 2
<source lang="java">
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.widgets.rubo; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class ComboExample2 {
Display d;
Shell s;
ComboExample2() {
d = new Display();
s = new Shell(d);
s.setSize(250, 250);
s.setText("A Combo Example");
final Combo c1 = new Combo(s, SWT.READ_ONLY);
c1.setBounds(50, 50, 150, 65);
final Combo c2 = new Combo(s, SWT.READ_ONLY);
c2.setBounds(50, 85, 150, 65);
c2.setEnabled(false);
String items[] = { "Item One", "Item Two", "Item Three", "Item Four",
"Item Five" };
c1.setItems(items);
c1.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (c1.getText().equals("Item One")) {
String newItems[] = { "Item One A", "Item One B",
"Item One C" };
c2.setItems(newItems);
c2.setEnabled(true);
} else if (c1.getText().equals("Item Two")) {
String newItems[] = { "Item Two A", "Item Two B",
"Item Two C" };
c2.setItems(newItems);
c2.setEnabled(true);
} else {
c2.add("Not Applicable");
c2.setText("Not Applicable");
}
}
});
s.open();
while (!s.isDisposed()) {
if (!d.readAndDispatch())
d.sleep();
}
d.dispose();
}
public static void main(String[] argv) {
new ComboExample2();
}
}
</source>
Create a combo box (non-editable)
<source lang="java">
/*
* Combo example snippet: create a combo box (non-editable) * * 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.rubo; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class Snippet26 {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Combo combo = new Combo(shell, SWT.READ_ONLY);
combo.setItems(new String[] { "A", "B", "C" });
combo.setSize(200, 200);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
</source>
demonstrates combos (combobox)
<source lang="java">
//Send questions, comments, bug reports, etc. to the authors: //Rob Warner (rwarner@interspatial.ru) //Robert Harris (rbrt_harris@yahoo.ru) import org.eclipse.swt.SWT; import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; /**
* This class demonstrates combos */
public class ComboExample {
// Strings to use as list items
private static final String[] ITEMS = { "Alpha", "Bravo", "Charlie", "Delta",
"Echo", "Foxtrot", "Golf", "Hotel", "India", "Juliet", "Kilo", "Lima", "Mike",
"November", "Oscar", "Papa", "Quebec", "Romeo", "Sierra", "Tango", "Uniform",
"Victor", "Whiskey", "X-Ray", "Yankee", "Zulu"
};
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new RowLayout());
// Create a drop-down combo
Combo combo = new Combo(shell, SWT.DROP_DOWN);
combo.setItems(ITEMS);
// Create a read only combo
Combo readOnly = new Combo(shell, SWT.DROP_DOWN | SWT.READ_ONLY);
readOnly.setItems(ITEMS);
// Create a "simple" combo
Combo simple = new Combo(shell, SWT.SIMPLE);
simple.setItems(ITEMS);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
</source>
DropDown Demo
<source lang="java">
/******************************************************************************
* Copyright (c) 1998, 2004 Jackwind Li Guojie * All right reserved. * * Created on Feb 8, 2004 3:43:08 PM by JACK * $Id$ * * visit: http://www.asprise.ru/swt *****************************************************************************/
import org.eclipse.swt.SWT; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.widgets.rubo; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class DropDownAndSimple {
Display display = new Display();
Shell shell = new Shell(display);
public DropDownAndSimple() {
init();
RowLayout rowLayout = new RowLayout();
rowLayout.spacing = 15;
rowLayout.marginWidth = 15;
rowLayout.marginHeight = 15;
shell.setLayout(rowLayout);
Combo comboDropDown = new Combo(shell, SWT.DROP_DOWN | SWT.BORDER);
Combo comboSimple = new Combo(shell, SWT.SIMPLE | SWT.BORDER);
for(int i=0; i<3; i++) {
comboDropDown.add("item " + i);
comboSimple.add("item " + i);
}
shell.pack();
shell.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 DropDownAndSimple();
}
}
</source>
Sample Combo
<source lang="java">
/******************************************************************************
* Copyright (c) 1998, 2004 Jackwind Li Guojie * All right reserved. * * Created on Feb 8, 2004 9:25:39 AM by JACK * $Id$ * * visit: http://www.asprise.ru/swt *****************************************************************************/
import java.util.Arrays; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.rubo; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; public class SampleCombo {
Display display = new Display();
Shell shell = new Shell(display);
public SampleCombo() {
init();
shell.setLayout(new GridLayout(2, false));
(new Label(shell, SWT.NULL)).setText("Select your favorite programming language: ");
//final CCombo combo = new CCombo(shell, SWT.FLAT);
final Combo combo = new Combo(shell, SWT.NULL);
String[] languages = new String[]{"Java", "C", "C++", "SmallTalk"};
Arrays.sort(languages);
for(int i=0; i<languages.length; i++)
combo.add(languages[i]);
//combo.add("Perl", 5);
//combo.setItem(5, "Perl");
combo.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
System.out.println("Selected index: " + combo.getSelectionIndex() + ", selected item: " + combo.getItem(combo.getSelectionIndex()) + ", text content in the text field: " + combo.getText());
}
public void widgetDefaultSelected(SelectionEvent e) {
System.out.println("Default selected index: " + combo.getSelectionIndex() + ", selected item: " + (combo.getSelectionIndex() == -1 ? "<null>" : combo.getItem(combo.getSelectionIndex())) + ", text content in the text field: " + combo.getText());
String text = combo.getText();
if(combo.indexOf(text) < 0) { // Not in the list yet.
combo.add(text);
// Re-sort
String[] items = combo.getItems();
Arrays.sort(items);
combo.setItems(items);
}
}
});
shell.pack();
shell.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 SampleCombo();
}
}
</source>
SWT Combo
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.widgets.rubo; import org.eclipse.swt.widgets.ruposite; public class Ch5ComboComposite extends Composite {
public Ch5ComboComposite(Composite parent) {
super(parent, SWT.NONE);
buildControls();
}
protected void buildControls() {
setLayout(new RowLayout());
int[] comboStyles = { SWT.SIMPLE, SWT.DROP_DOWN, SWT.READ_ONLY };
for (int idxComboStyle = 0; idxComboStyle < comboStyles.length; ++idxComboStyle) {
Combo combo = new Combo(this, comboStyles[idxComboStyle]);
combo.add("Option #1");
combo.add("Option #2");
combo.add("Option #3");
}
}
}
</source>
