SWT(JFace)体验之List演示汇总第1/2页

代码如下：

DropDownAndSimple.java

复制代码代码如下:

package swt_jface.demo3;

import org.eclipse.swt.SWT;

import org.eclipse.swt.layout.RowLayout;

import org.eclipse.swt.widgets.Combo;

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() {

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();

while (!shell.isDisposed()) {

if (!display.readAndDispatch()) {

display.sleep();

}

}

display.dispose();

}

public static void main(String[] args) {

new DropDownAndSimple();

}

}

SampleCombo.java

复制代码代码如下:

package swt_jface.demo3;

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.Combo;

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() {

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

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 ? "" : 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();

while (!shell.isDisposed()) {

if (!display.readAndDispatch()) {

display.sleep();

}

}

display.dispose();

}

public static void main(String[] args) {

new SampleCombo();

}

}

SampleList.java

复制代码代码如下:

package swt_jface.demo3;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.layout.RowLayout;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.List;

import org.eclipse.swt.widgets.Shell;

public class SampleList {

Display display = new Display();

Shell shell = new Shell(display);

public SampleList() {

RowLayout rowLayout = new RowLayout();

shell.setLayout(rowLayout);

(new Label(shell, SWT.NULL)).setText("What programming languages are you proficient in? ");

final List list = new List(shell, SWT.SINGLE | SWT.BORDER | SWT.V_SCROLL);

String[] languages = new String[]{"Java", "C", "C++", "SmallTalk"};

for(int i=0; i

list.add(languages[i]);

list.addSelectionListener(new SelectionListener() {

public void widgetSelected(SelectionEvent e) {

System.err.println(list.getSelectionIndex());

int[] indices = list.getSelectionIndices();

String[] items = list.getSelection();

StringBuffer sb = new StringBuffer("Selected indices: ");

for(int i=0; i < indices.length; i++) {

sb.append(indices[i]);

sb.append("(");

sb.append(items[i]);

sb.append(")");

if(i == indices.length-1)

sb.append('.');

else

sb.append(", ");

}

System.out.println(sb.toString());

}

public void widgetDefaultSelected(SelectionEvent e) {

int[] indices = list.getSelectionIndices();

String[] items = list.getSelection();

StringBuffer sb = new StringBuffer("Default selected indices: ");

for(int i=0; i < indices.length; i++) {

sb.append(indices[i]);

sb.append("(");

sb.append(items[i]);

sb.append(")");

if(i == indices.length-1)

sb.append('.');

else

sb.append(", ");

}

System.out.println(sb.toString());

}

});

list.selectAll();

//list.select(1);

shell.pack();

shell.open();

while (!shell.isDisposed()) {

if (!display.readAndDispatch()) {

display.sleep();

}

}

display.dispose();

}

public static void main(String[] args) {

new SampleList();

}

}

SingleMultiLists.java

复制代码代码如下:

package swt_jface.demo3;

import org.eclipse.swt.SWT;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.List;

import org.eclipse.swt.widgets.Shell;

public class SingleMultiLists {

Display display = new Display();

Shell shell = new Shell(display);

public SingleMultiLists() {

GridLayout gridLayout = new GridLayout(2, true);

shell.setLayout(gridLayout);

(new Label(shell, SWT.NULL)).setText("SINGLE");

(new Label(shell, SWT.NULL)).setText("MULTI");

List singleSelectList = new List(shell, SWT.BORDER);

List mutliSelectList = new List(shell, SWT.MULTI | SWT.BORDER);

String[] items = new String[]{"Item 1", "Item 2", "Item 3", "Item 4"};

for(int i=0; i

singleSelectList.add(items[i]);

mutliSelectList.add(items[i]);

}

shell.pack();

shell.open();

while (!shell.isDisposed()) {

if (!display.readAndDispatch()) {

display.sleep();

}

}

display.dispose();

}

public static void main(String[] args) {

new SingleMultiLists();

}

}

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