/*******************************************************************************
* 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
*******************************************************************************/
package org.eclipse.swt.snippets;
/*
* Printing example snippet: print text to printer, with word wrap and
* pagination
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.printing.PrintDialog;
import org.eclipse.swt.printing.Printer;
import org.eclipse.swt.printing.PrinterData;
import org.eclipse.swt.widgets.ColorDialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.FontDialog;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.MessageBox;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class Snippet133 {
Display display;
Shell shell;
Text text;
Font font;
Color foregroundColor, backgroundColor;
Printer printer;
GC gc;
Font printerFont;
Color printerForegroundColor, printerBackgroundColor;
int lineHeight = 0;
int tabWidth = 0;
int leftMargin, rightMargin, topMargin, bottomMargin;
int x, y;
int index, end;
String textToPrint;
String tabs;
StringBuffer wordBuffer;
public static void main(String[] args) {
new Snippet133().open();
}
void open() {
display = new Display();
font = new Font(display, "Courier", 10, SWT.NORMAL);
foregroundColor = display.getSystemColor(SWT.COLOR_BLACK);
backgroundColor = display.getSystemColor(SWT.COLOR_WHITE);
shell = new Shell(display);
shell.setLayout(new FillLayout());
shell.setText("Print Text");
shell.setMaximized(true);
text = new Text(shell, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL
| SWT.H_SCROLL);
text.setFont(font);
text.setForeground(foregroundColor);
text.setBackground(backgroundColor);
Menu menuBar = new Menu(shell, SWT.BAR);
shell.setMenuBar(menuBar);
MenuItem item = new MenuItem(menuBar, SWT.CASCADE);
item.setText("&File");
Menu fileMenu = new Menu(shell, SWT.DROP_DOWN);
item.setMenu(fileMenu);
item = new MenuItem(fileMenu, SWT.PUSH);
item.setText("&Open...");
item.setAccelerator(SWT.CTRL + 'O');
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
menuOpen();
}
});
item = new MenuItem(fileMenu, SWT.PUSH);
item.setText("Font...");
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
menuFont();
}
});
item = new MenuItem(fileMenu, SWT.PUSH);
item.setText("Foreground Color...");
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
menuForegroundColor();
}
});
item = new MenuItem(fileMenu, SWT.PUSH);
item.setText("Background Color...");
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
menuBackgroundColor();
}
});
item = new MenuItem(fileMenu, SWT.PUSH);
item.setText("&Print...");
item.setAccelerator(SWT.CTRL + 'P');
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
menuPrint();
}
});
new MenuItem(fileMenu, SWT.SEPARATOR);
item = new MenuItem(fileMenu, SWT.PUSH);
item.setText("E&xit");
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
System.exit(0);
}
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
if (font != null)
font.dispose();
if (foregroundColor != null)
foregroundColor.dispose();
if (backgroundColor != null)
backgroundColor.dispose();
}
void menuOpen() {
final String textString;
FileDialog dialog = new FileDialog(shell, SWT.OPEN);
dialog.setFilterExtensions(new String[] { "*.java", "*.*" });
String name = dialog.open();
if ((name == null) || (name.length() == 0))
return;
try {
File file = new File(name);
FileInputStream stream = new FileInputStream(file.getPath());
try {
Reader in = new BufferedReader(new InputStreamReader(stream));
char[] readBuffer = new char[2048];
StringBuffer buffer = new StringBuffer((int) file.length());
int n;
while ((n = in.read(readBuffer)) > 0) {
buffer.append(readBuffer, 0, n);
}
textString = buffer.toString();
stream.close();
} catch (IOException e) {
MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
box.setMessage("Error reading file:\n" + name);
box.open();
return;
}
} catch (FileNotFoundException e) {
MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
box.setMessage("File not found:\n" + name);
box.open();
return;
}
text.setText(textString);
}
void menuFont() {
FontDialog fontDialog = new FontDialog(shell);
fontDialog.setFontList(font.getFontData());
FontData fontData = fontDialog.open();
if (fontData != null) {
if (font != null)
font.dispose();
font = new Font(display, fontData);
text.setFont(font);
}
}
void menuForegroundColor() {
ColorDialog colorDialog = new ColorDialog(shell);
colorDialog.setRGB(foregroundColor.getRGB());
RGB rgb = colorDialog.open();
if (rgb != null) {
if (foregroundColor != null)
foregroundColor.dispose();
foregroundColor = new Color(display, rgb);
text.setForeground(foregroundColor);
}
}
void menuBackgroundColor() {
ColorDialog colorDialog = new ColorDialog(shell);
colorDialog.setRGB(backgroundColor.getRGB());
RGB rgb = colorDialog.open();
if (rgb != null) {
if (backgroundColor != null)
backgroundColor.dispose();
backgroundColor = new Color(display, rgb);
text.setBackground(backgroundColor);
}
}
void menuPrint() {
PrintDialog dialog = new PrintDialog(shell, SWT.NONE);
PrinterData data = dialog.open();
if (data == null)
return;
if (data.printToFile) {
data.fileName = "print.out"; // you probably want to ask the user
// for a filename
}
/*
* Get the text to print from the Text widget (you could get it from
* anywhere, i.e. your java model)
*/
textToPrint = text.getText();
/*
* Do the printing in a background thread so that spooling does not
* freeze the UI.
*/
printer = new Printer(data);
Thread printingThread = new Thread("Printing") {
public void run() {
print(printer);
printer.dispose();
}
};
printingThread.start();
}
void print(Printer printer) {
if (printer.startJob("Text")) { // the string is the job name - shows up
// in the
SWT全接触,提供全部的组件测试小程序,机会难得 （661个子文件） 
Snippet133.class 11KB Snippet156.class 7KB Snippet135.class 7KB Snippet186.class 6KB Snippet81.class 6KB Snippet139.class 4KB Snippet83.class 4KB Snippet128.class 4KB Snippet194.class 4KB Snippet199.class 4KB EventDispatch.class 4KB Snippet162.class 4KB Snippet193.class 4KB Snippet25.class 4KB Snippet119.class 4KB Snippet79$MyTransfer.class 4KB Snippet75.class 4KB Snippet205.class 3KB Snippet150.class 3KB Snippet111$1$2.class 3KB Snippet171$MyTransfer.class 3KB Snippet208.class 3KB Snippet141$1.class 3KB Snippet125$2.class 3KB Snippet171$MyTransfer2.class 3KB Snippet165.class 3KB Snippet204.class 3KB Snippet154.class 3KB Snippet91$2.class 3KB Snippet152.class 3KB Snippet48.class 3KB Snippet132.class 3KB Snippet96.class 3KB Snippet91.class 3KB Snippet181.class 3KB Snippet179$1.class 3KB Snippet65.class 3KB Snippet140.class 3KB Snippet143.class 3KB Snippet205$1.class 3KB Snippet203.class 3KB Snippet111$1.class 3KB Snippet188.class 3KB Snippet124$1.class 3KB Snippet140$1.class 3KB Snippet134.class 3KB Snippet187.class 3KB Snippet135$2.class 3KB Snippet196$1.class 3KB Snippet174.class 3KB Snippet104.class 3KB Snippet171.class 3KB Snippet70.class 3KB Snippet200.class 3KB Snippet92.class 3KB Snippet10.class 3KB Snippet185.class 3KB Snippet123.class 3KB Snippet126.class 3KB Snippet207.class 3KB Snippet192.class 3KB Snippet157$1.class 2KB Snippet185$2.class 2KB Snippet129.class 2KB Snippet141.class 2KB Snippet187$1.class 2KB Snippet94.class 2KB Snippet107.class 2KB Snippet162$1.class 2KB Snippet122.class 2KB Snippet106.class 2KB Snippet167.class 2KB Snippet191.class 2KB Snippet172.class 2KB Snippet38.class 2KB Snippet110.class 2KB Snippet3.class 2KB Snippet69.class 2KB Snippet47.class 2KB Snippet95$1.class 2KB Snippet2.class 2KB Snippet88.class 2KB Snippet149.class 2KB Snippet170.class 2KB Snippet145.class 2KB Snippet111.class 2KB Snippet68.class 2KB Snippet61.class 2KB Snippet10$1.class 2KB Snippet166.class 2KB Snippet82.class 2KB Snippet77.class 2KB Snippet207$1.class 2KB Snippet204$1.class 2KB Snippet78.class 2KB Snippet103.class 2KB Snippet124.class 2KB Snippet21.class 2KB Snippet79.class 2KB Snippet198.class 2KB共 661 条
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资源评论
water173512014-03-13不错,美中不足的是代码命名没有意义,需要一个一个打开查看,不方便查找.而且没有相应的文档说明
