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Arduino/app/Base.java

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/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Arduino project - http://arduino.berlios.de
Based on processing http://www.processing.org
Copyright (c) 2004-05 Ben Fry and Casey Reas
Copyright (c) 2001-04 Massachusetts Institute of Technology
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package processing.app;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.reflect.*;
import java.net.*;
import java.util.*;
import java.util.zip.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.text.*;
import javax.swing.undo.*;
import com.apple.mrj.*;
import com.ice.jni.registry.*;
import processing.core.*;
/**
* The base class for the main Arduino application.
* <P>
* Primary role of this class is for platform identification and
* general interaction with the system (launching URLs, loading
* files and images, etc) that comes from that.
*/
public class Base {
static final int VERSION = 10;
static final String VERSION_NAME = "0010 Alpha";
/**
* Path of filename opened on the command line,
* or via the MRJ open document handler.
*/
static String openedAtStartup;
Editor editor;
static public void main(String args[]) {
// make sure that this is running on java 1.4
if (PApplet.javaVersion < 1.4f) {
//System.err.println("no way man");
Base.showError("Need to install Java 1.4",
"This version of Processing requires \n" +
"Java 1.4 or later to run properly.\n" +
"Please visit java.com to upgrade.", null);
}
// grab any opened file from the command line
if (args.length == 1) {
Base.openedAtStartup = args[0];
}
// register a temporary/early version of the mrj open document handler,
// because the event may be lost (sometimes, not always) by the time
// that Editor is properly constructed.
MRJOpenDocumentHandler startupOpen = new MRJOpenDocumentHandler() {
public void handleOpenFile(File file) {
// this will only get set once.. later will be handled
// by the Editor version of this fella
if (Base.openedAtStartup == null) {
//System.out.println("handling outside open file: " + file);
Base.openedAtStartup = file.getAbsolutePath();
}
}
};
MRJApplicationUtils.registerOpenDocumentHandler(startupOpen);
Base app = new Base();
}
public Base() {
// set the look and feel before opening the window
try {
if (Base.isMacOS()) {
// Use the Quaqua L & F on OS X to make JFileChooser less awful
UIManager.setLookAndFeel("ch.randelshofer.quaqua.QuaquaLookAndFeel");
// undo quaqua trying to fix the margins, since we've already
// hacked that in, bit by bit, over the years
UIManager.put("Component.visualMargin", new Insets(1, 1, 1, 1));
} else if (Base.isLinux()) {
// Linux is by default even uglier than metal (Motif?).
// Actually, i'm using native menus, so they're even uglier
// and Motif-looking (Lesstif?). Ick. Need to fix this.
//String lfname = UIManager.getCrossPlatformLookAndFeelClassName();
//UIManager.setLookAndFeel(lfname);
// For 0120, trying out the gtk+ look and feel as the default.
// This is available in Java 1.4.2 and later, and it can't possibly
// be any worse than Metal. (Ocean might also work, but that's for
// Java 1.5, and we aren't going there yet)
UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
} else {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
//} catch (ClassNotFoundException cnfe) {
// just default to the native look and feel for this platform
// i.e. appears that some linux systems don't have the gtk l&f
//UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
// use native popups so they don't look so crappy on osx
JPopupMenu.setDefaultLightWeightPopupEnabled(false);
// build the editor object
editor = new Editor();
// get things rawkin
editor.pack();
// has to be here to set window size properly
editor.restorePreferences();
// show the window
editor.show();
// attempt to build libraries
editor.prepareLibraries();
// check for updates
if (Preferences.getBoolean("update.check")) {
new UpdateCheck(editor);
}
}
// .................................................................
/**
* returns true if the Arduino is running on a Mac OS machine,
* specifically a Mac OS X machine because it doesn't un on OS 9 anymore.
*/
static public boolean isMacOS() {
return PApplet.platform == PConstants.MACOSX;
}
/**
* returns true if running on windows.
*/
static public boolean isWindows() {
return PApplet.platform == PConstants.WINDOWS;
}
/**
* true if running on linux.
*/
static public boolean isLinux() {
return PApplet.platform == PConstants.LINUX;
}
// .................................................................
static final int kDocumentsFolderType =
('d' << 24) | ('o' << 16) | ('c' << 8) | 's';
static final int kPreferencesFolderType =
('p' << 24) | ('r' << 16) | ('e' << 8) | 'f';
static final int kDomainLibraryFolderType =
('d' << 24) | ('l' << 16) | ('i' << 8) | 'b';
static final short kUserDomain = -32763;
static public File getSettingsFolder() {
File dataFolder = null;
String pref = Preferences.get("settings.path");
if (pref != null) {
dataFolder = new File(pref);
} else if (Base.isMacOS()) {
// carbon folder constants
// http://developer.apple.com/documentation/Carbon/Reference
// /Folder_Manager/folder_manager_ref/constant_6.html#/
// /apple_ref/doc/uid/TP30000238/C006889
// additional information found int the local file:
// /System/Library/Frameworks/CoreServices.framework
// /Versions/Current/Frameworks/CarbonCore.framework/Headers/
// this is the 1.4 version.. but using 1.3 since i have the stubs
// import com.apple.eio.*
//println(FileManager.findFolder(kUserDomain,
// kDomainLibraryFolderType));
// not clear if i can write to this folder tho..
try {
/*
if (false) {
// this is because the mrjtoolkit stubs don't have the
// thows exception around them
new FileInputStream("ignored");
}
*/
// this method has to be dynamically loaded, because
MRJOSType domainLibrary = new MRJOSType("dlib");
Method findFolderMethod =
MRJFileUtils.class.getMethod("findFolder",
new Class[] { Short.TYPE,
MRJOSType.class });
File libraryFolder = (File)
findFolderMethod.invoke(null, new Object[] { new Short(kUserDomain),
domainLibrary });
dataFolder = new File(libraryFolder, "Arduino");
} catch (Exception e) {
// this could be FileNotFound or NoSuchMethod
//} catch (FileNotFoundException e) {
//e.printStackTrace();
//System.exit(1);
showError("Problem getting data folder",
"Error getting the Arduino data folder.", e);
}
} else if (Base.isWindows()) {
// looking for Documents and Settings/blah/Application Data/Arduino
// this is just based on the other documentation, and eyeballing
// that part of the registry.. not confirmed by any msft/msdn docs.
// HKEY_CURRENT_USER\Software\Microsoft
// \Windows\CurrentVersion\Explorer\Shell Folders
// Value Name: AppData
// Value Type: REG_SZ
// Value Data: path
try {
//RegistryKey topKey = Registry.getTopLevelKey("HKCU");
RegistryKey topKey = Registry.HKEY_CURRENT_USER;
String localKeyPath =
"Software\\Microsoft\\Windows\\CurrentVersion" +
"\\Explorer\\Shell Folders";
RegistryKey localKey = topKey.openSubKey(localKeyPath);
String appDataPath = cleanKey(localKey.getStringValue("AppData"));
//System.out.println("app data path is " + appDataPath);
//System.exit(0);
//topKey.closeKey(); // necessary?
//localKey.closeKey();
dataFolder = new File(appDataPath, "Arduino");
} catch (Exception e) {
showError("Problem getting data folder",
"Error getting the Arduino data folder.", e);
}
//return null;
} else {
// otherwise make a .arduino directory int the user's home dir
File home = new File(System.getProperty("user.home"));
dataFolder = new File(home, ".arduino");
}
// create the folder if it doesn't exist already
boolean result = true;
if (!dataFolder.exists()) {
result = dataFolder.mkdirs();
}
if (!result) {
// try the fallback location
System.out.println("Using fallback path for settings.");
String fallback = Preferences.get("settings.path.fallback");
dataFolder = new File(fallback);
if (!dataFolder.exists()) {
result = dataFolder.mkdirs();
}
}
if (!result) {
showError("Settings issues",
"Arduino cannot run because it could not\n" +
"create a folder to store your settings.", null);
}
return dataFolder;
}
static public File getSettingsFile(String filename) {
return new File(getSettingsFolder(), filename);
}
static File buildFolder;
static public File getBuildFolder() {
if (buildFolder == null) {
String buildPath = Preferences.get("build.path");
if (buildPath != null) {
buildFolder = new File(buildPath);
} else {
//File folder = new File(getTempFolder(), "build");
//if (!folder.exists()) folder.mkdirs();
buildFolder = createTempFolder("build");
buildFolder.deleteOnExit();
}
}
return buildFolder;
}
/**
* Get the path to the platform's temporary folder, by creating
* a temporary temporary file and getting its parent folder.
* <br/>
* Modified for revision 0094 to actually make the folder randomized
* to avoid conflicts in multi-user environments. (Bug 177)
*/
static public File createTempFolder(String name) {
try {
File folder = File.createTempFile(name, null);
//String tempPath = ignored.getParent();
//return new File(tempPath);
folder.delete();
folder.mkdirs();
return folder;
} catch (Exception e) {
e.printStackTrace();
}
return null; // TODO could we *really* ever reach this?
}
/*
static public void addBuildFolderToClassPath() {
String path = getBuildFolder().getAbsolutePath();
String jcp = System.getProperty("java.class.path");
if (jcp.indexOf(path) == -1) {
System.setProperty("java.class.path", path + File.pathSeparator + jcp);
//return new File(getProcessingDataFolder(), "build");
System.out.println("jcp is now " +
System.getProperty("java.class.path"));
}
}
*/
static public File getDefaultSketchbookFolder() {
File sketchbookFolder = null;
if (Base.isMacOS()) {
// looking for /Users/blah/Documents/Arduino
// carbon folder constants
// http://developer.apple.com/documentation/Carbon/Reference/Folder_Manager/folder_manager_ref/constant_6.html#//apple_ref/doc/uid/TP30000238/C006889
// additional information found int the local file:
// /System/Library/Frameworks/CoreServices.framework/Versions/Current/Frameworks/CarbonCore.framework/Headers/
// this is the 1.4 version.. but using 1.3 since i have the stubs
// import com.apple.eio.*
//println(FileManager.findFolder(kUserDomain,
// kDomainLibraryFolderType));
// not clear if i can write to this folder tho..
try {
MRJOSType domainDocuments = new MRJOSType("docs");
//File libraryFolder = MRJFileUtils.findFolder(domainDocuments);
// for 77, try switching this to the user domain, just to be sure
Method findFolderMethod =
MRJFileUtils.class.getMethod("findFolder",
new Class[] { Short.TYPE,
MRJOSType.class });
File documentsFolder = (File)
findFolderMethod.invoke(null, new Object[] { new Short(kUserDomain),
domainDocuments });
sketchbookFolder = new File(documentsFolder, "Arduino");
} catch (Exception e) {
//showError("Could not find folder",
// "Could not locate the Documents folder.", e);
sketchbookFolder = promptSketchbookLocation();
}
} else if (isWindows()) {
// looking for Documents and Settings/blah/My Documents/Arduino
// (though using a reg key since it's different on other platforms)
// http://support.microsoft.com/?kbid=221837&sd=RMVP
// The path to the My Documents folder is stored in the
// following registry key, where path is the complete path
// to your storage location:
// HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
// Value Name: Personal
// Value Type: REG_SZ
// Value Data: path
try {
RegistryKey topKey = Registry.HKEY_CURRENT_USER;
String localKeyPath =
"Software\\Microsoft\\Windows\\CurrentVersion" +
"\\Explorer\\Shell Folders";
RegistryKey localKey = topKey.openSubKey(localKeyPath);
String personalPath = cleanKey(localKey.getStringValue("Personal"));
//topKey.closeKey(); // necessary?
//localKey.closeKey();
sketchbookFolder = new File(personalPath, "Arduino");
} catch (Exception e) {
//showError("Problem getting folder",
// "Could not locate the Documents folder.", e);
sketchbookFolder = promptSketchbookLocation();
}
} else {
sketchbookFolder = promptSketchbookLocation();
/*
// on linux (or elsewhere?) prompt the user for the location
JFileChooser fc = new JFileChooser();
fc.setDialogTitle("Select the folder where " +
"Arduino programs should be stored...");
//fc.setSelectedFile(new File(sketchbookLocationField.getText()));
fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int returned = fc.showOpenDialog(new JDialog());
if (returned == JFileChooser.APPROVE_OPTION) {
//File file = fc.getSelectedFile();
//sketchbookLocationField.setText(file.getAbsolutePath());
sketchbookFolder = fc.getSelectedFile();
} else {
System.exit(0);
}
*/
}
// create the folder if it doesn't exist already
boolean result = true;
if (!sketchbookFolder.exists()) {
result = sketchbookFolder.mkdirs();
}
if (!result) {
// try the fallback location
System.out.println("Using fallback path for sketchbook.");
String fallback = Preferences.get("sketchbook.path.fallback");
sketchbookFolder = new File(fallback);
if (!sketchbookFolder.exists()) {
result = sketchbookFolder.mkdirs();
}
}
if (!result) {
showError("error",
"Arduino cannot run because it could not\n" +
"create a folder to store your sketchbook.", null);
}
return sketchbookFolder;
}
/**
* Check for a new sketchbook location.
*/
static protected File promptSketchbookLocation() {
File folder = null;
folder = new File(System.getProperty("user.home"), "sketchbook");
if (!folder.exists()) {
folder.mkdirs();
return folder;
}
folder = Base.selectFolder("Select (or create new) folder for sketches...",
null, null);
if (folder == null) {
System.exit(0);
}
return folder;
}
/**
* Implementation for choosing directories that handles both the
* Mac OS X hack to allow the native AWT file dialog, or uses
* the JFileChooser on other platforms. Mac AWT trick obtained from
* <A HREF="http://lists.apple.com/archives/java-dev/2003/Jul/msg00243.html">this post</A>
* on the OS X Java dev archive which explains the cryptic note in
* Apple's Java 1.4 release docs about the special System property.
*/
static public File selectFolder(String prompt, File folder, Frame frame) {
if (Base.isMacOS()) {
if (frame == null) frame = new Frame(); //.pack();
FileDialog fd = new FileDialog(frame, prompt, FileDialog.LOAD);
if (folder != null) {
fd.setDirectory(folder.getParent());
//fd.setFile(folder.getName());
}
System.setProperty("apple.awt.fileDialogForDirectories", "true");
fd.show();
System.setProperty("apple.awt.fileDialogForDirectories", "false");
if (fd.getFile() == null) {
return null;
}
return new File(fd.getDirectory(), fd.getFile());
} else {
JFileChooser fc = new JFileChooser();
fc.setDialogTitle(prompt);
if (folder != null) {
fc.setSelectedFile(folder);
}
fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
int returned = fc.showOpenDialog(new JDialog());
if (returned == JFileChooser.APPROVE_OPTION) {
return fc.getSelectedFile();
}
}
return null;
}
static public String cleanKey(String what) {
// jnireg seems to be reading the chars as bytes
// so maybe be as simple as & 0xff and then running through decoder
char c[] = what.toCharArray();
// if chars are in the tooHigh range, it's prolly because
// a byte from the jni registry was turned into a char
// and there was a sign extension.
// e.g. 0xFC (252, umlaut u) became 0xFFFC (65532).
// but on a japanese system, maybe this is two-byte and ok?
int tooHigh = 65536 - 128;
for (int i = 0; i < c.length; i++) {
if (c[i] >= tooHigh) c[i] &= 0xff;
/*
if ((c[i] >= 32) && (c[i] < 128)) {
System.out.print(c[i]);
} else {
System.out.print("[" + PApplet.hex(c[i]) + "]");
}
*/
}
//System.out.println();
return new String(c);
}
// .................................................................
// someone needs to be slapped
//static KeyStroke closeWindowKeyStroke;
/**
* Return true if the key event was a Ctrl-W or an ESC,
* both indicators to close the window.
* Use as part of a keyPressed() event handler for frames.
*/
/*
static public boolean isCloseWindowEvent(KeyEvent e) {
if (closeWindowKeyStroke == null) {
int modifiers = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();
closeWindowKeyStroke = KeyStroke.getKeyStroke('W', modifiers);
}
return ((e.getKeyCode() == KeyEvent.VK_ESCAPE) ||
KeyStroke.getKeyStrokeForEvent(e).equals(closeWindowKeyStroke));
}
*/
/**
* Registers key events for a Ctrl-W and ESC with an ActionListener
* that will take care of disposing the window.
*/
static public void registerWindowCloseKeys(JRootPane root, //Window window,
ActionListener disposer) {
/*
JRootPane root = null;
if (window instanceof JFrame) {
root = ((JFrame)window).getRootPane();
} else if (window instanceof JDialog) {
root = ((JDialog)window).getRootPane();
}
*/
KeyStroke stroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
root.registerKeyboardAction(disposer, stroke,
JComponent.WHEN_IN_FOCUSED_WINDOW);
int modifiers = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();
stroke = KeyStroke.getKeyStroke('W', modifiers);
root.registerKeyboardAction(disposer, stroke,
JComponent.WHEN_IN_FOCUSED_WINDOW);
}
// .................................................................
static public void showReference(String referenceFile) {
openURL(Base.getContents("reference" + File.separator + referenceFile));
}
static public void showReference() {
showReference("index.html");
}
static public void showEnvironment() {
showReference("Guide_Environment.html");
}
static public void showTroubleshooting() {
showReference("Guide_Troubleshooting.html");
}
/**
* Opens the local copy of the FAQ that's included
* with the Processing download.
*/
static public void showFAQ() {
showReference("faq.html");
}
// .................................................................
/**
* Implements the cross-platform headache of opening URLs
* TODO This code should be replaced by PApplet.link(),
* however that's not a static method (because it requires
* an AppletContext when used as an applet), so it's mildly
* trickier than just removing this method.
*/
static public void openURL(String url) {
//System.out.println("opening url " + url);
try {
if (Base.isWindows()) {
// this is not guaranteed to work, because who knows if the
// path will always be c:\progra~1 et al. also if the user has
// a different browser set as their default (which would
// include me) it'd be annoying to be dropped into ie.
//Runtime.getRuntime().exec("c:\\progra~1\\intern~1\\iexplore "
// + currentDir
// the following uses a shell execute to launch the .html file
// note that under cygwin, the .html files have to be chmodded +x
// after they're unpacked from the zip file. i don't know why,
// and don't understand what this does in terms of windows
// permissions. without the chmod, the command prompt says
// "Access is denied" in both cygwin and the "dos" prompt.
//Runtime.getRuntime().exec("cmd /c " + currentDir + "\\reference\\" +
// referenceFile + ".html");
if (url.startsWith("http://")) {
// open dos prompt, give it 'start' command, which will
// open the url properly. start by itself won't work since
// it appears to need cmd
Runtime.getRuntime().exec("cmd /c start " + url);
} else {
// just launching the .html file via the shell works
// but make sure to chmod +x the .html files first
// also place quotes around it in case there's a space
// in the user.dir part of the url
Runtime.getRuntime().exec("cmd /c \"" + url + "\"");
}
} else if (Base.isMacOS()) {
//com.apple.eio.FileManager.openURL(url);
if (!url.startsWith("http://")) {
// prepend file:// on this guy since it's a file
url = "file://" + url;
// replace spaces with %20 for the file url
// otherwise the mac doesn't like to open it
// can't just use URLEncoder, since that makes slashes into
// %2F characters, which is no good. some might say "useless"
if (url.indexOf(' ') != -1) {
StringBuffer sb = new StringBuffer();
char c[] = url.toCharArray();
for (int i = 0; i < c.length; i++) {
if (c[i] == ' ') {
sb.append("%20");
} else {
sb.append(c[i]);
}
}
url = sb.toString();
}
}
com.apple.mrj.MRJFileUtils.openURL(url);
} else if (Base.isLinux()) {
// how's mozilla sound to ya, laddie?
//Runtime.getRuntime().exec(new String[] { "mozilla", url });
//String browser = Preferences.get("browser");
//Runtime.getRuntime().exec(new String[] { browser, url });
String launcher = Preferences.get("launcher.linux");
if (launcher != null) {
Runtime.getRuntime().exec(new String[] { launcher, url });
}
} else {
String launcher = Preferences.get("launcher");
if (launcher != null) {
Runtime.getRuntime().exec(new String[] { launcher, url });
} else {
System.err.println("Unspecified platform, no launcher available.");
}
}
} catch (IOException e) {
Base.showWarning("Could not open URL",
"An error occurred while trying to open\n" + url, e);
}
}
static boolean openFolderAvailable() {
if (Base.isWindows() || Base.isMacOS()) return true;
if (Base.isLinux()) {
// Assume that this is set to something valid
if (Preferences.get("launcher.linux") != null) {
return true;
}
// Attempt to use gnome-open
try {
Process p = Runtime.getRuntime().exec(new String[] { "gnome-open" });
int result = p.waitFor();
// Not installed will throw an IOException (JDK 1.4.2, Ubuntu 7.04)
Preferences.set("launcher.linux", "gnome-open");
return true;
} catch (Exception e) { }
// Attempt with kde-open
try {
Process p = Runtime.getRuntime().exec(new String[] { "kde-open" });
int result = p.waitFor();
Preferences.set("launcher.linux", "kde-open");
return true;
} catch (Exception e) { }
}
return false;
}
/**
* Implements the other cross-platform headache of opening
* a folder in the machine's native file browser.
*/
static public void openFolder(File file) {
try {
String folder = file.getAbsolutePath();
if (Base.isWindows()) {
// doesn't work
//Runtime.getRuntime().exec("cmd /c \"" + folder + "\"");
// works fine on winxp, prolly win2k as well
Runtime.getRuntime().exec("explorer \"" + folder + "\"");
// not tested
//Runtime.getRuntime().exec("start explorer \"" + folder + "\"");
} else if (Base.isMacOS()) {
openURL(folder); // handles char replacement, etc
} else if (Base.isLinux()) {
String launcher = Preferences.get("launcher.linux");
if (launcher != null) {
Runtime.getRuntime().exec(new String[] { launcher, folder });
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* "No cookie for you" type messages. Nothing fatal or all that
* much of a bummer, but something to notify the user about.
*/
static public void showMessage(String title, String message) {
if (title == null) title = "Message";
JOptionPane.showMessageDialog(new Frame(), message, title,
JOptionPane.INFORMATION_MESSAGE);
}
/**
* Non-fatal error message with optional stack trace side dish.
*/
static public void showWarning(String title, String message,
Exception e) {
if (title == null) title = "Warning";
JOptionPane.showMessageDialog(new Frame(), message, title,
JOptionPane.WARNING_MESSAGE);
//System.err.println(e.toString());
if (e != null) e.printStackTrace();
}
/**
* Show an error message that's actually fatal to the program.
* This is an error that can't be recovered. Use showWarning()
* for errors that allow P5 to continue running.
*/
static public void showError(String title, String message,
Throwable e) {
if (title == null) title = "Error";
JOptionPane.showMessageDialog(new Frame(), message, title,
JOptionPane.ERROR_MESSAGE);
if (e != null) e.printStackTrace();
System.exit(1);
}
// ...................................................................
static public String getContents(String what) {
String basePath = System.getProperty("user.dir");
/*
// do this later, when moving to .app package
if (PApplet.platform == PConstants.MACOSX) {
basePath = System.getProperty("processing.contents");
}
*/
return basePath + File.separator + what;
}
static public String getLibContents(String what) {
return getContents("lib" + File.separator + what);
}
static public Image getImage(String name, Component who) {
Image image = null;
Toolkit tk = Toolkit.getDefaultToolkit();
image = tk.getImage(getLibContents(name));
MediaTracker tracker = new MediaTracker(who);
tracker.addImage(image, 0);
try {
tracker.waitForAll();
} catch (InterruptedException e) { }
return image;
}
static public InputStream getStream(String filename) throws IOException {
return new FileInputStream(getLibContents(filename));
}
// ...................................................................
static public byte[] grabFile(File file) throws IOException {
int size = (int) file.length();
FileInputStream input = new FileInputStream(file);
byte buffer[] = new byte[size];
int offset = 0;
int bytesRead;
while ((bytesRead = input.read(buffer, offset, size-offset)) != -1) {
offset += bytesRead;
if (bytesRead == 0) break;
}
input.close(); // weren't properly being closed
input = null;
return buffer;
}
static public void copyFile(File afile, File bfile) throws IOException {
InputStream from = new BufferedInputStream(new FileInputStream(afile));
OutputStream to = new BufferedOutputStream(new FileOutputStream(bfile));
byte[] buffer = new byte[16 * 1024];
int bytesRead;
while ((bytesRead = from.read(buffer)) != -1) {
to.write(buffer, 0, bytesRead);
}
to.flush();
from.close(); // ??
from = null;
to.close(); // ??
to = null;
bfile.setLastModified(afile.lastModified()); // jdk13+ required
//} catch (IOException e) {
// e.printStackTrace();
//}
}
/**
* Grab the contents of a file as a string.
*/
static public String loadFile(File file) throws IOException {
// empty code file.. no worries, might be getting filled up later
if (file.length() == 0) return "";
InputStreamReader isr = new InputStreamReader(new FileInputStream(file));
BufferedReader reader = new BufferedReader(isr);
StringBuffer buffer = new StringBuffer();
String line = null;
while ((line = reader.readLine()) != null) {
buffer.append(line);
buffer.append('\n');
}
reader.close();
return buffer.toString();
}
/**
* Spew the contents of a String object out to a file.
*/
static public void saveFile(String str,
File file) throws IOException {
ByteArrayInputStream bis = new ByteArrayInputStream(str.getBytes());
InputStreamReader isr = new InputStreamReader(bis);
BufferedReader reader = new BufferedReader(isr);
FileWriter fw = new FileWriter(file);
PrintWriter writer = new PrintWriter(new BufferedWriter(fw));
String line = null;
while ((line = reader.readLine()) != null) {
writer.println(line);
}
writer.flush();
writer.close();
}
static public void copyDir(File sourceDir,
File targetDir) throws IOException {
targetDir.mkdirs();
String files[] = sourceDir.list();
for (int i = 0; i < files.length; i++) {
if (files[i].equals(".") || files[i].equals("..")) continue;
File source = new File(sourceDir, files[i]);
File target = new File(targetDir, files[i]);
if (source.isDirectory()) {
//target.mkdirs();
copyDir(source, target);
target.setLastModified(source.lastModified());
} else {
copyFile(source, target);
}
}
}
/**
* Remove all files in a directory and the directory itself.
*/
static public void removeDir(File dir) {
if (dir.exists()) {
removeDescendants(dir);
if (!dir.delete()) {
System.err.println("Could not delete " + dir);
}
}
}
/**
* Recursively remove all files within a directory,
* used with removeDir(), or when the contents of a dir
* should be removed, but not the directory itself.
* (i.e. when cleaning temp files from lib/build)
*/
static public void removeDescendants(File dir) {
if (!dir.exists()) return;
String files[] = dir.list();
for (int i = 0; i < files.length; i++) {
if (files[i].equals(".") || files[i].equals("..")) continue;
File dead = new File(dir, files[i]);
if (!dead.isDirectory()) {
if (!Preferences.getBoolean("compiler.save_build_files")) {
if (!dead.delete()) {
// temporarily disabled
System.err.println("Could not delete " + dead);
}
}
} else {
removeDir(dead);
//dead.delete();
}
}
}
/**
* Calculate the size of the contents of a folder.
* Used to determine whether sketches are empty or not.
* Note that the function calls itself recursively.
*/
static public int calcFolderSize(File folder) {
int size = 0;
String files[] = folder.list();
// null if folder doesn't exist, happens when deleting sketch
if (files == null) return -1;
for (int i = 0; i < files.length; i++) {
if (files[i].equals(".") || (files[i].equals("..")) ||
files[i].equals(".DS_Store")) continue;
File fella = new File(folder, files[i]);
if (fella.isDirectory()) {
size += calcFolderSize(fella);
} else {
size += (int) fella.length();
}
}
return size;
}
/**
* Gets a list of all files within the specified folder,
* and returns a list of their relative paths.
* Ignores any files/folders prefixed with a dot.
*/
static public String[] listFiles(String path, boolean relative) {
return listFiles(new File(path), relative);
}
static public String[] listFiles(File folder, boolean relative) {
String path = folder.getAbsolutePath();
Vector vector = new Vector();
listFiles(relative ? (path + File.separator) : "", path, vector);
String outgoing[] = new String[vector.size()];
vector.copyInto(outgoing);
return outgoing;
}
static protected void listFiles(String basePath,
String path, Vector vector) {
File folder = new File(path);
String list[] = folder.list();
if (list == null) return;
for (int i = 0; i < list.length; i++) {
if (list[i].charAt(0) == '.') continue;
File file = new File(path, list[i]);
String newPath = file.getAbsolutePath();
if (newPath.startsWith(basePath)) {
newPath = newPath.substring(basePath.length());
}
vector.add(newPath);
if (file.isDirectory()) {
listFiles(basePath, newPath, vector);
}
}
}
}
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