bundles/org.eclipse.swt/Eclipse SWT Program/win32/org/eclipse/swt/program/Program.java - platform/eclipse.platform.swt - Git at Google

 package org.eclipse.swt.program;

 /*
  * Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
  * This file is made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  */

 import org.eclipse.swt.internal.*;
 import org.eclipse.swt.internal.win32.*;
 import org.eclipse.swt.*;
 import org.eclipse.swt.graphics.*;

 import java.io.IOException;

 /**
  * Instances of this class represent programs and
  * their assoicated file extensions in the operating
  * system.
  */
 public final class Program {
 	String name;
 	String command;
 	String iconName;

 /**
  * Prevents uninitialized instances from being created outside the package.
  */
 Program () {
 }

 /**
  * Finds the program that is associated with an extension.
  * The extension may or may not begin with a '.'.
  *
  * @param extension the program extension
  * @return the program or nil
  *
  * @exception SWTError <ul>
  *		<li>ERROR_NULL_ARGUMENT when extension is null</li>
  *	</ul>
  */
 public static Program findProgram (String extension) {
 	if (extension == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
 	if (extension.length () == 0) return null;
 	if (extension.charAt (0) != '.') extension = "." + extension;
 	/* Use the character encoding for the default locale */
 	TCHAR key = new TCHAR (0, extension, true);
 	int [] phkResult = new int [1];
 	if (OS.RegOpenKeyEx (OS.HKEY_CLASSES_ROOT, key, 0, OS.KEY_READ, phkResult) != 0) {
 		return null;
 	}
 	int [] lpcbData = new int [] {256};
 	TCHAR lpData = new TCHAR (0, lpcbData [0]);
 	int result = OS.RegQueryValueEx (phkResult [0], null, 0, null, lpData, lpcbData);
 	OS.RegCloseKey (phkResult [0]);
 	if (result != 0) return null;
 	return getProgram (lpData.toString (0, lpData.strlen ()));
 }

 /**
  * Answer all program extensions in the operating system.
  *
  * @return an array of extensions
  */
 public static String [] getExtensions () {
 	String [] extensions = new String [1024];
 	/* Use the character encoding for the default locale */
 	TCHAR lpName = new TCHAR (0, 1024);
 	int [] lpcName = new int [] {lpName.length ()};
 	FILETIME ft = new FILETIME ();
 	int dwIndex = 0, count = 0;
 	while (OS.RegEnumKeyEx (OS.HKEY_CLASSES_ROOT, dwIndex, lpName, lpcName, null, null, null, ft) != OS.ERROR_NO_MORE_ITEMS) {
 		String extension = lpName.toString (0, lpcName [0]);
 		lpcName [0] = lpName.length ();
 		if (extension.length () > 0 && extension.charAt (0) == '.') {
 			if (count == extensions.length) {
 				String [] newExtensions = new String [extensions.length + 1024];
 				System.arraycopy (extensions, 0, newExtensions, 0, extensions.length);
 				extensions = newExtensions;
 			}
 			extensions [count++] = extension;
 		}
 		dwIndex++;
 	}
 	if (count != extensions.length) {
 		String [] newExtension = new String [count];
 		System.arraycopy (extensions, 0, newExtension, 0, count);
 		extensions = newExtension;
 	}
 	return extensions;
 }

 static String getKeyValue (String string, boolean expand) {
 	/* Use the character encoding for the default locale */
 	TCHAR key = new TCHAR (0, string, true);
 	int [] phkResult = new int [1];
 	if (OS.RegOpenKeyEx (OS.HKEY_CLASSES_ROOT, key, 0, OS.KEY_READ, phkResult) != 0) {
 		return null;
 	}
 	String result = null;
 	int [] lpcbData = new int [1];
 	if (OS.RegQueryValueEx (phkResult [0], (TCHAR) null, 0, null, null, lpcbData) == 0) {
 		/* Use the character encoding for the default locale */
 		TCHAR lpData = new TCHAR (0, lpcbData [0] / TCHAR.sizeof);
 		if (OS.RegQueryValueEx (phkResult [0], null, 0, null, lpData, lpcbData) == 0) {
 			if (!OS.IsWinCE && expand) {
 				int nSize = OS.ExpandEnvironmentStrings (lpData, null, 0);
 				TCHAR lpDst = new TCHAR (0, nSize);
 				OS.ExpandEnvironmentStrings (lpData, lpDst, nSize);
 				result = lpDst.toString (0, Math.max (0, nSize - 1));
 			} else {
 				int length = Math.max (0, lpData.length () - 1);
 				result = lpData.toString (0, length);
 			}
 		}
 	}
 	if (phkResult [0] != 0) OS.RegCloseKey (phkResult [0]);
 	return result;
 }

 static Program getProgram (String key) {

 	/* Name */
 	String name = getKeyValue (key, false);
 	if (name == null || name.length () == 0) return null;

 	/* Command */
 	String COMMAND = "\\shell\\open\\command";
 	String command = getKeyValue (key + COMMAND, true);
 	if (command == null || command.length () == 0) return null;

 	/* Icon */
 	String DEFAULT_ICON = "\\DefaultIcon";
 	String iconName = getKeyValue (key + DEFAULT_ICON, true);
 	if (iconName == null || iconName.length () == 0) return null;

 	Program program = new Program ();
 	program.name = name;
 	program.command = command;
 	program.iconName = iconName;
 	return program;
 }

 /**
  * Answers all available programs in the operating system.
  *
  * @return an array of programs
  */
 public static Program [] getPrograms () {
 	Program [] programs = new Program [1024];
 	/* Use the character encoding for the default locale */
 	TCHAR lpName = new TCHAR (0, 1024);
 	int [] lpcName = new int [] {lpName.length ()};
 	FILETIME ft = new FILETIME ();
 	int dwIndex = 0, count = 0;
 	while (OS.RegEnumKeyEx (OS.HKEY_CLASSES_ROOT, dwIndex, lpName, lpcName, null, null, null, ft) != OS.ERROR_NO_MORE_ITEMS) {
 		String path = lpName.toString (0, lpcName [0]);
 		lpcName [0] = lpName.length ();
 		Program program = getProgram (path);
 		if (program != null) {
 			if (count == programs.length) {
 				Program [] newPrograms = new Program [programs.length + 1024];
 				System.arraycopy (programs, 0, newPrograms, 0, programs.length);
 				programs = newPrograms;
 			}
 			programs [count++] = program;
 		}
 		dwIndex++;
 	}
 	if (count != programs.length) {
 		Program [] newPrograms = new Program [count];
 		System.arraycopy (programs, 0, newPrograms, 0, count);
 		programs = newPrograms;
 	}
 	return programs;
 }

 /**
  * Launches the executable associated with the file in
  * the operating system.  If the file is an executable,
  * then the executable is launched.
  *
  * @param fileName the file or program name
  * @return <code>true</code> if the file is launched, otherwise <code>false</code>
  *
  * @exception SWTError <ul>
  *		<li>ERROR_NULL_ARGUMENT when fileName is null</li>
  *	</ul>
  */
 public static boolean launch (String fileName) {
 	if (fileName == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);

 	/* Use the character encoding for the default locale */
 	int hHeap = OS.GetProcessHeap ();
 	TCHAR buffer1 = new TCHAR (0, "open", true);
 	int byteCount1 = buffer1.length () * TCHAR.sizeof;
 	int lpVerb = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount1);
 	OS.MoveMemory (lpVerb, buffer1, byteCount1);
 	TCHAR buffer2 = new TCHAR (0, fileName, true);
 	int byteCount2 = buffer2.length () * TCHAR.sizeof;
 	int lpFile = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount2);
 	OS.MoveMemory (lpFile, buffer2, byteCount2);

 	SHELLEXECUTEINFO info = new SHELLEXECUTEINFO ();
 	info.cbSize = SHELLEXECUTEINFO.sizeof;
 	info.lpVerb = lpVerb;
 	info.lpFile = lpFile;
 	info.nShow = OS.SW_SHOW;

 	boolean result = OS.ShellExecuteEx (info);

 	if (lpVerb != 0) OS.HeapFree (hHeap, 0, lpVerb);
 	if (lpFile != 0) OS.HeapFree (hHeap, 0, lpFile);

 	return result;
 }

 /**
  * Executes the program with the file as the single argument
  * in the operating system.  It is the responsibility of the
  * programmer to ensure that the file contains valid data for
  * this program.
  *
  * @param fileName the file or program name
  * @return <code>true</code> if the file is launched, otherwise <code>false</code>
  *
  * @exception SWTError <ul>
  *		<li>ERROR_NULL_ARGUMENT when fileName is null</li>
  *	</ul>
  */
 public boolean execute (String fileName) {
 	if (fileName == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
 	boolean quote = true;
 	String prefix = command, suffix = "";
 	int index = command.indexOf ("%1");
 	if (index != -1) {
 		int count=0;
 		int i=index + 2, length = command.length ();
 		while (i < length) {
 			if (command.charAt (i) == '"') count++;
 			i++;
 		}
 		quote = count % 2 == 0;
 		prefix = command.substring (0, index);
 		suffix = command.substring (index + 2, length);
 	}
 	if (quote) fileName = " \"" + fileName + "\"";
 	try {
 		Compatibility.exec(prefix + fileName + suffix);
 	} catch (IOException e) {
 		return false;
 	}
 	return true;
 }

 /**
  * Returns the receiver's image data.  This is the icon
  * that is associated with the reciever in the operating
  * system.
  *
  * @return the image data for the program, may be null
  */
 public ImageData getImageData () {
 	int nIconIndex = 0;
 	String fileName = iconName;
 	int index = iconName.indexOf (',');
 	if (index != -1) {
 		fileName = iconName.substring (0, index);
 		String iconIndex = iconName.substring (index + 1, iconName.length ()).trim ();
 		try {
 			nIconIndex = Integer.parseInt (iconIndex);
 		} catch (NumberFormatException e) {};
 	}
 	/* Use the character encoding for the default locale */
 	TCHAR lpszFile = new TCHAR (0, fileName, true);
 	int [] phiconSmall = new int[1], phiconLarge = null;
 	OS.ExtractIconEx (lpszFile, nIconIndex, phiconLarge, phiconSmall, 1);
 	if (phiconSmall [0] == 0) return null;
 	Image image = Image.win32_new (null, SWT.ICON, phiconSmall[0]);
 	ImageData imageData = image.getImageData ();
 	image.dispose ();
 	return imageData;
 }

 /**
  * Returns the receiver's name.  This is as short and
  * descriptive a name as possible for the program.  If
  * the program has no descriptive name, this string may
  * be the executable name, path or empty.
  *
  * @return an the name of the program
  */
 public String getName () {
 	return name;
 }

 /**
  * Returns true if the receiver and the argument represent
  * the same program.
  *
  * @return true if the programs are the same
  */
 public boolean equals(Object other) {
 	if (this == other) return true;
 	if (other instanceof Program) {
 		final Program program = (Program) other;
 		return name.equals(program.name) && command.equals(program.command)
 			&& iconName.equals(program.iconName);
 	}
 	return false;
 }

 /**
  * Returns a hash code suitable for this object.
  *
  * @return a hash code
  */
 public int hashCode() {
 	return name.hashCode() ^ command.hashCode() ^ iconName.hashCode();
 }

 public String toString () {
 	return "Program {" + name + "}";
 }

 }
	package org.eclipse.swt.program;

	/*
	* Copyright (c) 2000, 2002 IBM Corp. All rights reserved.
	* This file is made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*/

	import org.eclipse.swt.internal.*;
	import org.eclipse.swt.internal.win32.*;
	import org.eclipse.swt.*;
	import org.eclipse.swt.graphics.*;

	import java.io.IOException;

	/**
	* Instances of this class represent programs and
	* their assoicated file extensions in the operating
	* system.
	*/
	public final class Program {
	String name;
	String command;
	String iconName;

	/**
	* Prevents uninitialized instances from being created outside the package.
	*/
	Program () {
	}

	/**
	* Finds the program that is associated with an extension.
	* The extension may or may not begin with a '.'.
	*
	* @param extension the program extension
	* @return the program or nil
	*
	* @exception SWTError <ul>
	* <li>ERROR_NULL_ARGUMENT when extension is null</li>
	* </ul>
	*/
	public static Program findProgram (String extension) {
	if (extension == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
	if (extension.length () == 0) return null;
	if (extension.charAt (0) != '.') extension = "." + extension;
	/* Use the character encoding for the default locale */
	TCHAR key = new TCHAR (0, extension, true);
	int [] phkResult = new int [1];
	if (OS.RegOpenKeyEx (OS.HKEY_CLASSES_ROOT, key, 0, OS.KEY_READ, phkResult) != 0) {
	return null;
	}
	int [] lpcbData = new int [] {256};
	TCHAR lpData = new TCHAR (0, lpcbData [0]);
	int result = OS.RegQueryValueEx (phkResult [0], null, 0, null, lpData, lpcbData);
	OS.RegCloseKey (phkResult [0]);
	if (result != 0) return null;
	return getProgram (lpData.toString (0, lpData.strlen ()));
	}

	/**
	* Answer all program extensions in the operating system.
	*
	* @return an array of extensions
	*/
	public static String [] getExtensions () {
	String [] extensions = new String [1024];
	/* Use the character encoding for the default locale */
	TCHAR lpName = new TCHAR (0, 1024);
	int [] lpcName = new int [] {lpName.length ()};
	FILETIME ft = new FILETIME ();
	int dwIndex = 0, count = 0;
	while (OS.RegEnumKeyEx (OS.HKEY_CLASSES_ROOT, dwIndex, lpName, lpcName, null, null, null, ft) != OS.ERROR_NO_MORE_ITEMS) {
	String extension = lpName.toString (0, lpcName [0]);
	lpcName [0] = lpName.length ();
	if (extension.length () > 0 && extension.charAt (0) == '.') {
	if (count == extensions.length) {
	String [] newExtensions = new String [extensions.length + 1024];
	System.arraycopy (extensions, 0, newExtensions, 0, extensions.length);
	extensions = newExtensions;
	}
	extensions [count++] = extension;
	}
	dwIndex++;
	}
	if (count != extensions.length) {
	String [] newExtension = new String [count];
	System.arraycopy (extensions, 0, newExtension, 0, count);
	extensions = newExtension;
	}
	return extensions;
	}

	static String getKeyValue (String string, boolean expand) {
	/* Use the character encoding for the default locale */
	TCHAR key = new TCHAR (0, string, true);
	int [] phkResult = new int [1];
	if (OS.RegOpenKeyEx (OS.HKEY_CLASSES_ROOT, key, 0, OS.KEY_READ, phkResult) != 0) {
	return null;
	}
	String result = null;
	int [] lpcbData = new int [1];
	if (OS.RegQueryValueEx (phkResult [0], (TCHAR) null, 0, null, null, lpcbData) == 0) {
	/* Use the character encoding for the default locale */
	TCHAR lpData = new TCHAR (0, lpcbData [0] / TCHAR.sizeof);
	if (OS.RegQueryValueEx (phkResult [0], null, 0, null, lpData, lpcbData) == 0) {
	if (!OS.IsWinCE && expand) {
	int nSize = OS.ExpandEnvironmentStrings (lpData, null, 0);
	TCHAR lpDst = new TCHAR (0, nSize);
	OS.ExpandEnvironmentStrings (lpData, lpDst, nSize);
	result = lpDst.toString (0, Math.max (0, nSize - 1));
	} else {
	int length = Math.max (0, lpData.length () - 1);
	result = lpData.toString (0, length);
	}
	}
	}
	if (phkResult [0] != 0) OS.RegCloseKey (phkResult [0]);
	return result;
	}

	static Program getProgram (String key) {

	/* Name */
	String name = getKeyValue (key, false);
	if (name == null \|\| name.length () == 0) return null;

	/* Command */
	String COMMAND = "\\shell\\open\\command";
	String command = getKeyValue (key + COMMAND, true);
	if (command == null \|\| command.length () == 0) return null;

	/* Icon */
	String DEFAULT_ICON = "\\DefaultIcon";
	String iconName = getKeyValue (key + DEFAULT_ICON, true);
	if (iconName == null \|\| iconName.length () == 0) return null;

	Program program = new Program ();
	program.name = name;
	program.command = command;
	program.iconName = iconName;
	return program;
	}

	/**
	* Answers all available programs in the operating system.
	*
	* @return an array of programs
	*/
	public static Program [] getPrograms () {
	Program [] programs = new Program [1024];
	/* Use the character encoding for the default locale */
	TCHAR lpName = new TCHAR (0, 1024);
	int [] lpcName = new int [] {lpName.length ()};
	FILETIME ft = new FILETIME ();
	int dwIndex = 0, count = 0;
	while (OS.RegEnumKeyEx (OS.HKEY_CLASSES_ROOT, dwIndex, lpName, lpcName, null, null, null, ft) != OS.ERROR_NO_MORE_ITEMS) {
	String path = lpName.toString (0, lpcName [0]);
	lpcName [0] = lpName.length ();
	Program program = getProgram (path);
	if (program != null) {
	if (count == programs.length) {
	Program [] newPrograms = new Program [programs.length + 1024];
	System.arraycopy (programs, 0, newPrograms, 0, programs.length);
	programs = newPrograms;
	}
	programs [count++] = program;
	}
	dwIndex++;
	}
	if (count != programs.length) {
	Program [] newPrograms = new Program [count];
	System.arraycopy (programs, 0, newPrograms, 0, count);
	programs = newPrograms;
	}
	return programs;
	}

	/**
	* Launches the executable associated with the file in
	* the operating system. If the file is an executable,
	* then the executable is launched.
	*
	* @param fileName the file or program name
	* @return <code>true</code> if the file is launched, otherwise <code>false</code>
	*
	* @exception SWTError <ul>
	* <li>ERROR_NULL_ARGUMENT when fileName is null</li>
	* </ul>
	*/
	public static boolean launch (String fileName) {
	if (fileName == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);

	/* Use the character encoding for the default locale */
	int hHeap = OS.GetProcessHeap ();
	TCHAR buffer1 = new TCHAR (0, "open", true);
	int byteCount1 = buffer1.length () * TCHAR.sizeof;
	int lpVerb = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount1);
	OS.MoveMemory (lpVerb, buffer1, byteCount1);
	TCHAR buffer2 = new TCHAR (0, fileName, true);
	int byteCount2 = buffer2.length () * TCHAR.sizeof;
	int lpFile = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount2);
	OS.MoveMemory (lpFile, buffer2, byteCount2);

	SHELLEXECUTEINFO info = new SHELLEXECUTEINFO ();
	info.cbSize = SHELLEXECUTEINFO.sizeof;
	info.lpVerb = lpVerb;
	info.lpFile = lpFile;
	info.nShow = OS.SW_SHOW;

	boolean result = OS.ShellExecuteEx (info);

	if (lpVerb != 0) OS.HeapFree (hHeap, 0, lpVerb);
	if (lpFile != 0) OS.HeapFree (hHeap, 0, lpFile);

	return result;
	}

	/**
	* Executes the program with the file as the single argument
	* in the operating system. It is the responsibility of the
	* programmer to ensure that the file contains valid data for
	* this program.
	*
	* @param fileName the file or program name
	* @return <code>true</code> if the file is launched, otherwise <code>false</code>
	*
	* @exception SWTError <ul>
	* <li>ERROR_NULL_ARGUMENT when fileName is null</li>
	* </ul>
	*/
	public boolean execute (String fileName) {
	if (fileName == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
	boolean quote = true;
	String prefix = command, suffix = "";
	int index = command.indexOf ("%1");
	if (index != -1) {
	int count=0;
	int i=index + 2, length = command.length ();
	while (i < length) {
	if (command.charAt (i) == '"') count++;
	i++;
	}
	quote = count % 2 == 0;
	prefix = command.substring (0, index);
	suffix = command.substring (index + 2, length);
	}
	if (quote) fileName = " \"" + fileName + "\"";
	try {
	Compatibility.exec(prefix + fileName + suffix);
	} catch (IOException e) {
	return false;
	}
	return true;
	}

	/**
	* Returns the receiver's image data. This is the icon
	* that is associated with the reciever in the operating
	* system.
	*
	* @return the image data for the program, may be null
	*/
	public ImageData getImageData () {
	int nIconIndex = 0;
	String fileName = iconName;
	int index = iconName.indexOf (',');
	if (index != -1) {
	fileName = iconName.substring (0, index);
	String iconIndex = iconName.substring (index + 1, iconName.length ()).trim ();
	try {
	nIconIndex = Integer.parseInt (iconIndex);
	} catch (NumberFormatException e) {};
	}
	/* Use the character encoding for the default locale */
	TCHAR lpszFile = new TCHAR (0, fileName, true);
	int [] phiconSmall = new int[1], phiconLarge = null;
	OS.ExtractIconEx (lpszFile, nIconIndex, phiconLarge, phiconSmall, 1);
	if (phiconSmall [0] == 0) return null;
	Image image = Image.win32_new (null, SWT.ICON, phiconSmall[0]);
	ImageData imageData = image.getImageData ();
	image.dispose ();
	return imageData;
	}

	/**
	* Returns the receiver's name. This is as short and
	* descriptive a name as possible for the program. If
	* the program has no descriptive name, this string may
	* be the executable name, path or empty.
	*
	* @return an the name of the program
	*/
	public String getName () {
	return name;
	}

	/**
	* Returns true if the receiver and the argument represent
	* the same program.
	*
	* @return true if the programs are the same
	*/
	public boolean equals(Object other) {
	if (this == other) return true;
	if (other instanceof Program) {
	final Program program = (Program) other;
	return name.equals(program.name) && command.equals(program.command)
	&& iconName.equals(program.iconName);
	}
	return false;
	}

	/**
	* Returns a hash code suitable for this object.
	*
	* @return a hash code
	*/
	public int hashCode() {
	return name.hashCode() ^ command.hashCode() ^ iconName.hashCode();
	}

	public String toString () {
	return "Program {" + name + "}";
	}

	}