в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:20:20Z

1 версия

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== Append line to Text ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class TextAppendLine {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Text text = new Text(shell, SWT.BORDER | SWT.V_SCROLL);
text.setBounds(10, 10, 100, 100);
for (int i = 0; i < 16; i++) {
text.append("Line " + i + "\n");
}
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Change Text Font ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class FontTextChange {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Text text = new Text(shell, SWT.MULTI|SWT.BORDER);
text.setBounds(10, 10, 150, 150);
Font initialFont = text.getFont();
FontData[] fontData = initialFont.getFontData();
for (int i = 0; i < fontData.length; i++) {
fontData[i].setHeight(24);
}
Font newFont = new Font(display, fontData);
text.setFont(newFont);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
newFont.dispose();
display.dispose();
}
}</source>



== Create a multiple-line text field ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class CreateMultipleLineText {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
// Create a multiple-line text field
Text t = new Text(shell, SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL);
t.setLayoutData(new GridData(GridData.FILL_BOTH));

shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Create a password text field ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class PasswordFieldTextExample {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, false));

// Create a password text field
new Text(shell, SWT.PASSWORD | SWT.BORDER);

shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Create a read-only text field ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class ReadOnlyTextExample {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, false));

// Create a read-only text field
new Text(shell, SWT.READ_ONLY | SWT.BORDER).setText("Read Only");

shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Create a right-aligned single-line text field ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class RightalignTextExample {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, false));

// Create a right-aligned single-line text field
new Text(shell, SWT.RIGHT | SWT.BORDER);

shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Create a single-line text field ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class SingleLinefieldTextExample {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, false));

// Create a single-line text field
new Text(shell, SWT.BORDER);

shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>



== Draw on the background of Text ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.TraverseEvent;
import org.eclipse.swt.events.TraverseListener;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class TextBackgroundDraw {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final Text text = new Text(shell, SWT.SINGLE | SWT.BORDER);
text.setText("press tab to draw");
text.addTraverseListener(new TraverseListener() {
public void keyTraversed(TraverseEvent e) {
if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
e.doit = true;
GC gc = new GC(text);
// Erase background first.
Rectangle rect = text.getClientArea();
gc.fillRectangle(rect.x, rect.y, rect.width, rect.height);
Font font = new Font(display, "Arial", 32, SWT.BOLD);
gc.setFont(font);
gc.drawString("tab event", 15, 10);
gc.dispose();
}
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
}</source>



== Get Caret Position ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class CaretPosition {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Text text = new Text(shell, SWT.BORDER | SWT.V_SCROLL);
text.setBounds(10, 10, 100, 100);
text.append("Line \n");
text.setSelection(30);
System.out.println("selection=" + text.getSelection());
System.out.println("caret position=" + text.getCaretPosition());
System.out.println("caret location=" + text.getCaretLocation());
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Introducing Text and Text Styles ==

<p>SWT offers the Text class for text-entry fields.</p>
StyleDescriptionSWT.MULTICreates a multiple-line text field.SWT.SINGLECreates a single-line text field. This is the default. You may specifiy only one of SWT.MULTI or SWT.SINGLE.SWT.READ_ONLYCreates a text field with uneditable contents.SWT.WRAPWith multiple-line text fields, causes text to wrap.SWT.BORDERDraws a border around the text field. Note that this style isn"t set by default, and your text fields will look funny without it.SWT.CENTERCenters the text in this text field.SWT.LEFTLeft-aligns the text in this text field. This is the default.SWT.RIGHTRight-aligns the text in this text field. You may specify only one of SWT.CENTER, SWT.LEFT, or SWT.RIGHT.SWT.PASSWORDCreates a text field suitable for password entry-it doesn"t display the actual characters the user types, but rather it displays asterisks.SWT.H_SCROLLCreates a horizontal scrollbar to scroll this text field.SWT.V_SCROLLCreates a vertical scrollbar to scroll this text field.
<p>SWT.SINGLE | SWT.LEFT is set by default</p>

== Resize a text control ==



<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class TextControlResize {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Text text = new Text(shell, SWT.BORDER);
int columns = 10;
GC gc = new GC(text);
FontMetrics fm = gc.getFontMetrics();
int width = columns * fm.getAverageCharWidth();
int height = fm.getHeight();
gc.dispose();
text.setSize(text.ruputeSize(width, height));
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Select all text in Text ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class TextTextSelection {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final Text t = new Text(shell, SWT.BORDER | SWT.MULTI);
t.setText("here is some text to be selected");

t.selectAll();
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Set size for Text ==



<source lang="java">
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class TextSetSize {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Text text = new Text(shell, 0);
text.setText("ASDF");
text.setSize(64, 32);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Set the selection (start, end) ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class SelectionStartEnd {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
Text text = new Text(shell, SWT.BORDER | SWT.V_SCROLL);
text.setBounds(10, 10, 400, 100);
text.append("text text text text text text text text text text text text text ");
shell.open();
text.setSelection(30, 38);
System.out.println("selection=" + text.getSelection());
System.out.println("caret position=" + text.getCaretPosition());
System.out.println("caret location=" + text.getCaretLocation());
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== Text: type in one text, output to another ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.VerifyEvent;
import org.eclipse.swt.events.VerifyListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class TextLink {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final Text text0 = new Text(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
final Text text1 = new Text(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);

text0.addVerifyListener(new VerifyListener() {
public void verifyText(VerifyEvent event) {
text1.setTopIndex(text0.getTopIndex());
text1.setSelection(event.start, event.end);
text1.insert(event.text);
}
});

shell.setBounds(10, 10, 200, 200);
shell.open();

while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}

display.dispose();
}
}</source>

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в 17:44, 31 мая 2010

Admin: 1 версия