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Java by API/org.eclipse.swt.widgets/Tree - История изменений
2026-04-22T03:26:34Z
История изменений этой страницы в вики
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http://www.jexp.ru/index.php?title=Java_by_API/org.eclipse.swt.widgets/Tree&diff=356&oldid=prev
в 17:43, 31 мая 2010
2010-05-31T17:43:48Z
<p></p>
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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://www.jexp.ru/index.php?title=Java_by_API/org.eclipse.swt.widgets/Tree&diff=357&oldid=prev
Admin: 1 версия
2010-05-31T14:16:14Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== new Tree(Composite parent, int style) ==<br />
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<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.layout.FillLayout;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
import org.eclipse.swt.widgets.Tree;<br />
import org.eclipse.swt.widgets.TreeItem;<br />
public class MainClass {<br />
public static void main(String[] a) {<br />
final Display d = new Display();<br />
final Shell s = new Shell(d);<br />
s.setSize(250, 200);<br />
s.setText("A Table Shell Example");<br />
s.setLayout(new FillLayout());<br />
Tree t = new Tree(s, SWT.SINGLE | SWT.BORDER);<br />
TreeItem child1 = new TreeItem(t, SWT.NONE, 0);<br />
child1.setText("1");<br />
TreeItem child2 = new TreeItem(t, SWT.NONE, 1);<br />
child2.setText("2");<br />
TreeItem child2a = new TreeItem(child2, SWT.NONE, 0);<br />
child2a.setText("2A");<br />
TreeItem child2b = new TreeItem(child2, SWT.NONE, 1);<br />
child2b.setText("2B");<br />
TreeItem child3 = new TreeItem(t, SWT.NONE, 2);<br />
child3.setText("3");<br />
s.open();<br />
while (!s.isDisposed()) {<br />
if (!d.readAndDispatch())<br />
d.sleep();<br />
}<br />
d.dispose();<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
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== Tree: addKeyListener(KeyListener lis) ==<br />
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<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.custom.TreeEditor;<br />
import org.eclipse.swt.events.FocusAdapter;<br />
import org.eclipse.swt.events.FocusEvent;<br />
import org.eclipse.swt.events.KeyAdapter;<br />
import org.eclipse.swt.events.KeyEvent;<br />
import org.eclipse.swt.layout.FillLayout;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
import org.eclipse.swt.widgets.Text;<br />
import org.eclipse.swt.widgets.Tree;<br />
import org.eclipse.swt.widgets.TreeItem;<br />
public class MainClass {<br />
public static void main(String[] a) {<br />
<br />
final Display d = new Display();<br />
final Shell shell = new Shell(d);<br />
shell.setSize(250, 200);<br />
<br />
<br />
shell.setLayout(new FillLayout());<br />
final Tree tree = new Tree(shell, SWT.SINGLE);<br />
for (int i = 0; i < 3; i++) {<br />
TreeItem iItem = new TreeItem(tree, SWT.NONE);<br />
iItem.setText("Edit me by pressing F2 " + (i + 1));<br />
iItem.setExpanded(true);<br />
}<br />
final TreeEditor editor = new TreeEditor(tree);<br />
editor.horizontalAlignment = SWT.LEFT;<br />
editor.grabHorizontal = true;<br />
tree.addKeyListener(new KeyAdapter() {<br />
public void keyPressed(KeyEvent event) {<br />
if (event.keyCode == SWT.F2 && tree.getSelectionCount() == 1) {<br />
final TreeItem item = tree.getSelection()[0];<br />
final Text text = new Text(tree, SWT.NONE);<br />
text.setText(item.getText());<br />
text.setFocus();<br />
text.addFocusListener(new FocusAdapter() {<br />
public void focusLost(FocusEvent event) {<br />
item.setText(text.getText());<br />
text.dispose();<br />
}<br />
});<br />
editor.setEditor(text, item);<br />
}<br />
}<br />
});<br />
<br />
shell.open();<br />
while (!shell.isDisposed()) {<br />
if (!d.readAndDispatch())<br />
d.sleep();<br />
}<br />
d.dispose();<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
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<br />
<br />
== Tree: addSelectionListener(SelectionListener lis) ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.events.SelectionAdapter;<br />
import org.eclipse.swt.events.SelectionEvent;<br />
import org.eclipse.swt.events.TreeEvent;<br />
import org.eclipse.swt.events.TreeListener;<br />
import org.eclipse.swt.graphics.Image;<br />
import org.eclipse.swt.layout.FillLayout;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.List;<br />
import org.eclipse.swt.widgets.Shell;<br />
import org.eclipse.swt.widgets.Tree;<br />
import org.eclipse.swt.widgets.TreeItem;<br />
public class MainClass {<br />
public static void main(String[] a) {<br />
final Display d = new Display();<br />
final Shell s = new Shell(d);<br />
s.setSize(250, 200);<br />
s.setText("A Tree Shell Example");<br />
s.setLayout(new FillLayout(SWT.HORIZONTAL));<br />
final Tree t = new Tree(s, SWT.SINGLE | SWT.BORDER);<br />
final TreeItem child1 = new TreeItem(t, SWT.NONE, 0);<br />
child1.setText("1");<br />
// child1.setImage(new Image(d, "c:\\icons\\folder.gif"));<br />
final TreeItem child2 = new TreeItem(t, SWT.NONE, 1);<br />
child2.setText("2");<br />
final TreeItem child2a = new TreeItem(child2, SWT.NONE, 0);<br />
child2a.setText("2A");<br />
final TreeItem child2b = new TreeItem(child2, SWT.NONE, 1);<br />
child2b.setText("2B");<br />
final TreeItem child3 = new TreeItem(t, SWT.NONE, 2);<br />
child3.setText("3");<br />
final List l = new List(s, SWT.BORDER | SWT.SINGLE);<br />
t.addTreeListener(new TreeListener() {<br />
public void treeExpanded(TreeEvent e) {<br />
TreeItem ti = (TreeItem) e.item;<br />
// ti.setImage(new Image(d, "c:\\icons\\open.gif"));<br />
}<br />
public void treeCollapsed(TreeEvent e) {<br />
TreeItem ti = (TreeItem) e.item;<br />
// ti.setImage(new Image(d, "c:\\icons\\folder.gif"));<br />
}<br />
});<br />
t.addSelectionListener(new SelectionAdapter() {<br />
public void widgetSelected(SelectionEvent e) {<br />
TreeItem ti = (TreeItem) e.item;<br />
populateList(ti.getText());<br />
}<br />
private void populateList(String type) {<br />
if (type.equals("1")) {<br />
l.removeAll();<br />
l.add("1");<br />
l.add("2");<br />
}<br />
if (type.equals("2")) {<br />
l.removeAll();<br />
}<br />
if (type.equals("2A")) {<br />
l.removeAll();<br />
l.add("3");<br />
l.add("4");<br />
}<br />
if (type.equals("2B")) {<br />
l.removeAll();<br />
l.add("5");<br />
l.add("6");<br />
}<br />
if (type.equals("3")) {<br />
l.removeAll();<br />
l.add("7");<br />
l.add("8");<br />
}<br />
}<br />
});<br />
s.open();<br />
while (!s.isDisposed()) {<br />
if (!d.readAndDispatch())<br />
d.sleep();<br />
}<br />
d.dispose();<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
== Tree: addTreeListener(TreeListener lis) ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.events.SelectionAdapter;<br />
import org.eclipse.swt.events.SelectionEvent;<br />
import org.eclipse.swt.events.TreeEvent;<br />
import org.eclipse.swt.events.TreeListener;<br />
import org.eclipse.swt.graphics.Image;<br />
import org.eclipse.swt.layout.FillLayout;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.List;<br />
import org.eclipse.swt.widgets.Shell;<br />
import org.eclipse.swt.widgets.Tree;<br />
import org.eclipse.swt.widgets.TreeItem;<br />
public class MainClass {<br />
public static void main(String[] a) {<br />
final Display d = new Display();<br />
final Shell s = new Shell(d);<br />
s.setSize(250, 200);<br />
s.setText("A Tree Shell Example");<br />
s.setLayout(new FillLayout(SWT.HORIZONTAL));<br />
final Tree t = new Tree(s, SWT.SINGLE | SWT.BORDER);<br />
final TreeItem child1 = new TreeItem(t, SWT.NONE, 0);<br />
child1.setText("1");<br />
// child1.setImage(new Image(d, "c:\\icons\\folder.gif"));<br />
final TreeItem child2 = new TreeItem(t, SWT.NONE, 1);<br />
child2.setText("2");<br />
final TreeItem child2a = new TreeItem(child2, SWT.NONE, 0);<br />
child2a.setText("2A");<br />
final TreeItem child2b = new TreeItem(child2, SWT.NONE, 1);<br />
child2b.setText("2B");<br />
final TreeItem child3 = new TreeItem(t, SWT.NONE, 2);<br />
child3.setText("3");<br />
final List l = new List(s, SWT.BORDER | SWT.SINGLE);<br />
t.addTreeListener(new TreeListener() {<br />
public void treeExpanded(TreeEvent e) {<br />
TreeItem ti = (TreeItem) e.item;<br />
// ti.setImage(new Image(d, "c:\\icons\\open.gif"));<br />
}<br />
public void treeCollapsed(TreeEvent e) {<br />
TreeItem ti = (TreeItem) e.item;<br />
// ti.setImage(new Image(d, "c:\\icons\\folder.gif"));<br />
}<br />
});<br />
t.addSelectionListener(new SelectionAdapter() {<br />
public void widgetSelected(SelectionEvent e) {<br />
TreeItem ti = (TreeItem) e.item;<br />
populateList(ti.getText());<br />
}<br />
private void populateList(String type) {<br />
if (type.equals("1")) {<br />
l.removeAll();<br />
l.add("1");<br />
l.add("2");<br />
}<br />
if (type.equals("2")) {<br />
l.removeAll();<br />
}<br />
if (type.equals("2A")) {<br />
l.removeAll();<br />
l.add("3");<br />
l.add("4");<br />
}<br />
if (type.equals("2B")) {<br />
l.removeAll();<br />
l.add("5");<br />
l.add("6");<br />
}<br />
if (type.equals("3")) {<br />
l.removeAll();<br />
l.add("7");<br />
l.add("8");<br />
}<br />
}<br />
});<br />
s.open();<br />
while (!s.isDisposed()) {<br />
if (!d.readAndDispatch())<br />
d.sleep();<br />
}<br />
d.dispose();<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --><br />
<br />
<br />
<br />
<br />
<br />
== Tree: getSelection() ==<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="java"><br />
<br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.custom.TreeEditor;<br />
import org.eclipse.swt.events.FocusAdapter;<br />
import org.eclipse.swt.events.FocusEvent;<br />
import org.eclipse.swt.events.KeyAdapter;<br />
import org.eclipse.swt.events.KeyEvent;<br />
import org.eclipse.swt.layout.FillLayout;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
import org.eclipse.swt.widgets.Text;<br />
import org.eclipse.swt.widgets.Tree;<br />
import org.eclipse.swt.widgets.TreeItem;<br />
public class MainClass {<br />
public static void main(String[] a) {<br />
<br />
final Display d = new Display();<br />
final Shell shell = new Shell(d);<br />
shell.setSize(250, 200);<br />
<br />
<br />
shell.setLayout(new FillLayout());<br />
final Tree tree = new Tree(shell, SWT.SINGLE);<br />
for (int i = 0; i < 3; i++) {<br />
TreeItem iItem = new TreeItem(tree, SWT.NONE);<br />
iItem.setText("Edit me by pressing F2 " + (i + 1));<br />
iItem.setExpanded(true);<br />
}<br />
final TreeEditor editor = new TreeEditor(tree);<br />
editor.horizontalAlignment = SWT.LEFT;<br />
editor.grabHorizontal = true;<br />
tree.addKeyListener(new KeyAdapter() {<br />
public void keyPressed(KeyEvent event) {<br />
if (event.keyCode == SWT.F2 && tree.getSelectionCount() == 1) {<br />
final TreeItem item = tree.getSelection()[0];<br />
final Text text = new Text(tree, SWT.NONE);<br />
text.setText(item.getText());<br />
text.setFocus();<br />
text.addFocusListener(new FocusAdapter() {<br />
public void focusLost(FocusEvent event) {<br />
item.setText(text.getText());<br />
text.dispose();<br />
}<br />
});<br />
editor.setEditor(text, item);<br />
}<br />
}<br />
});<br />
<br />
shell.open();<br />
while (!shell.isDisposed()) {<br />
if (!d.readAndDispatch())<br />
d.sleep();<br />
}<br />
d.dispose();<br />
}<br />
}<br />
<br />
</source><br />
<br />
<br />
<!-- end source code --></div>
Admin