processing/app/src/processing/app/Mode.java at fixJavaModeLoading · Jonham/processing · GitHub

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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */

Part of the Processing project - http://processing.org

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.awt.image.BufferedImage;

import java.awt.image.WritableRaster;

import java.io.*;

import java.util.*;

import java.util.List;

import javax.swing.*;

import javax.swing.border.Border;

import javax.swing.border.EmptyBorder;

import javax.swing.event.TreeExpansionEvent;

import javax.swing.event.TreeExpansionListener;

import javax.swing.tree.*;

import processing.app.contrib.ContributionType;

import processing.app.contrib.ExamplesContribution;

import processing.app.syntax.*;

import processing.app.ui.Editor;

import processing.app.ui.EditorState;

import processing.app.ui.Toolkit;

import processing.core.PApplet;

import processing.core.PConstants;

public abstract class Mode {

protected Base base;

protected File folder;

protected TokenMarker tokenMarker;

protected HashMap<String, String> keywordToReference =

new HashMap<String, String>();

protected Settings theme;

// protected Formatter formatter;

// protected Tool formatter;

// maps imported packages to their library folder

// protected HashMap<String, Library> importToLibraryTable;

protected HashMap<String, ArrayList<Library>> importToLibraryTable;

// these menus are shared so that they needn't be rebuilt for all windows

// each time a sketch is created, renamed, or moved.

protected JMenu examplesMenu; // this is for the menubar, not the toolbar

protected JMenu importMenu;

// protected JTree examplesTree;

protected JFrame examplesFrame;

// popup menu used for the toolbar

protected JMenu toolbarMenu;

protected File examplesFolder;

protected File librariesFolder;

protected File referenceFolder;

protected File examplesContribFolder;

public List<Library> coreLibraries;

public List<Library> contribLibraries;

/** Library folder for core. (Used for OpenGL in particular.) */

protected Library coreLibrary;

/**

* ClassLoader used to retrieve classes for this mode. Useful if you want

* to grab any additional classes that subclass what's in the mode folder.

protected ClassLoader classLoader;

static final int BACKGROUND_WIDTH = 1025;

static final int BACKGROUND_HEIGHT = 65;

protected Image backgroundImage;

// public Mode(Base base, File folder) {

// this(base, folder, base.getSketchbookLibrariesFolder());

// }

public Mode(Base base, File folder) {

this.base = base;

this.folder = folder;

tokenMarker = createTokenMarker();

// Get paths for the libraries and examples in the mode folder

examplesFolder = new File(folder, "examples");

librariesFolder = new File(folder, "libraries");

referenceFolder = new File(folder, "reference");

// Get path to the contributed examples compatible with this mode

examplesContribFolder = Base.getSketchbookExamplesFolder();

// rebuildToolbarMenu();

rebuildLibraryList();

// rebuildExamplesMenu();

try {

for (File file : getKeywordFiles()) {

loadKeywords(file);

}

} catch (IOException e) {

Base.showWarning("Problem loading keywords",

"Could not load keywords file for " + getTitle() + " mode.", e);

}

/**

* To add additional keywords, or to grab them from another mode, override

* this function. If your mode has no keywords, return a zero length array.

public File[] getKeywordFiles() {

return new File[] { new File(folder, "keywords.txt") };

}

protected void loadKeywords(File keywordFile) throws IOException {

// overridden for Python, where # is an actual keyword

loadKeywords(keywordFile, "#");

}

protected void loadKeywords(File keywordFile,

String commentPrefix) throws IOException {

BufferedReader reader = PApplet.createReader(keywordFile);

String line = null;

while ((line = reader.readLine()) != null) {

if (!line.trim().startsWith(commentPrefix)) {

// Was difficult to make sure that mode authors were properly doing

// tab-separated values. By definition, there can't be additional

// spaces inside a keyword (or filename), so just splitting on tokens.

String[] pieces = PApplet.splitTokens(line);

if (pieces.length >= 2) {

String keyword = pieces[0];

String coloring = pieces[1];

if (coloring.length() > 0) {

tokenMarker.addColoring(keyword, coloring);

}

if (pieces.length == 3) {

String htmlFilename = pieces[2];

if (htmlFilename.length() > 0) {

// if the file is for the version with parens,

// add a paren to the keyword

if (htmlFilename.endsWith("_")) {

keyword += "_";

}

keywordToReference.put(keyword, htmlFilename);

}

reader.close();

}

public void setClassLoader(ClassLoader loader) {

this.classLoader = loader;

}

public ClassLoader getClassLoader() {

return classLoader;

}

/**

* Setup additional elements that are only required when running with a GUI,

* rather than from the command-line. Note that this will not be called when

* the Mode is used from the command line (because Base will be null).

public void setupGUI() {

try {

// First load the default theme data for the whole PDE.

theme = new Settings(Base.getContentFile("lib/theme.txt"));

// The mode-specific theme.txt file should only contain additions,

// and in extremely rare cases, it might override entries from the

// main theme. Do not override for style changes unless they are

// objectively necessary for your Mode.

File modeTheme = new File(folder, "theme/theme.txt");

if (modeTheme.exists()) {

// Override the built-in settings with what the theme provides

theme.load(modeTheme);

}

// other things that have to be set explicitly for the defaults

theme.setColor("run.window.bgcolor", SystemColor.control);

// loadBackground();

} catch (IOException e) {

Base.showError("Problem loading theme.txt",

"Could not load theme.txt, please re-install Processing", e);

}

protected void loadBackground() {

String suffix = Toolkit.highResDisplay() ? "-2x.png" : ".png";

backgroundImage = loadImage("theme/mode" + suffix);

if (backgroundImage == null) {

// If the image wasn't available, try the other resolution.

// i.e. we don't (currently) have low-res versions of mode.png,

// so this will grab the 2x version and scale it when drawn.

suffix = !Toolkit.highResDisplay() ? "-2x.png" : ".png";

backgroundImage = loadImage("theme/mode" + suffix);

}

public void drawBackground(Graphics g, int offset) {

if (backgroundImage != null) {

if (!Toolkit.highResDisplay()) {

// Image might be downsampled from a 2x version. If so, we need nice

// anti-aliasing for the very geometric images we're using.

Graphics2D g2 = (Graphics2D) g;

g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,

RenderingHints.VALUE_ANTIALIAS_ON);

g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,

RenderingHints.VALUE_INTERPOLATION_BICUBIC);

}

g.drawImage(backgroundImage, 0, -offset,

BACKGROUND_WIDTH, BACKGROUND_HEIGHT, null);

}

public File getContentFile(String path) {

return new File(folder, path);

}

public InputStream getContentStream(String path) throws FileNotFoundException {

return new FileInputStream(getContentFile(path));

}

/**

* Return the pretty/printable/menu name for this mode. This is separate from

* the single word name of the folder that contains this mode. It could even

* have spaces, though that might result in sheer madness or total mayhem.

abstract public String getTitle();

/**

* Get an identifier that can be used to resurrect this mode and connect it

* to a sketch. Using this instead of getTitle() because there might be name

* clashes with the titles, but there should not be once the actual package,

* et al. is included.

* @return full name (package + class name) for this mode.

public String getIdentifier() {

return getClass().getCanonicalName();

}

/**

* Create a new editor associated with this mode.

abstract public Editor createEditor(Base base, String path, EditorState state);

//abstract public Editor createEditor(Base base, String path, int[] location);

/**

* Get the folder where this mode is stored.

* @since 3.0a3

public File getFolder() {

return folder;

}

public File getExamplesFolder() {

return examplesFolder;

}

public File getLibrariesFolder() {

return librariesFolder;

}

public File getReferenceFolder() {

return referenceFolder;

}

public void rebuildLibraryList() {

//new Exception("Rebuilding library list").printStackTrace(System.out);

// reset the table mapping imports to libraries

importToLibraryTable = new HashMap<String, ArrayList<Library>>();

coreLibraries = Library.list(librariesFolder);

for (Library lib : coreLibraries) {

lib.addPackageList(importToLibraryTable);

}

File contribLibrariesFolder = Base.getSketchbookLibrariesFolder();

if (contribLibrariesFolder != null) {

contribLibraries = Library.list(contribLibrariesFolder);

for (Library lib : contribLibraries) {

lib.addPackageList(importToLibraryTable);

}

public Library getCoreLibrary() {

return null;

}

public Library getLibrary(String pkgName) throws SketchException {

ArrayList<Library> libraries = importToLibraryTable.get(pkgName);

if (libraries == null) {

return null;

} else if (libraries.size() > 1) {

String primary = "More than one library is competing for this sketch.";

String secondary = "The import " + pkgName + " points to multiple libraries:<br>";

for (Library library : libraries) {

String location = library.getPath();

if (location.startsWith(getLibrariesFolder().getAbsolutePath())) {

location = "part of Processing";

}

secondary += "<b>" + library.getName() + "</b> (" + location + ")<br>";

}

secondary += "Extra libraries need to be removed before this sketch can be used.";

Base.showWarningTiered("Duplicate Library Problem", primary, secondary, null);

throw new SketchException("Duplicate libraries found for " + pkgName + ".");

} else {

return libraries.get(0);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

// abstract public EditorToolbar createToolbar(Editor editor);

public JMenu getToolbarMenu() {

if (toolbarMenu == null) {

// toolbarMenu = new JMenu();

rebuildToolbarMenu();

}

return toolbarMenu;

}

public void insertToolbarRecentMenu() {

if (toolbarMenu == null) {

rebuildToolbarMenu();

} else {

toolbarMenu.insert(base.getToolbarRecentMenu(), 1);

}

public void removeToolbarRecentMenu() {

toolbarMenu.remove(base.getToolbarRecentMenu());

}

protected void rebuildToolbarMenu() { //JMenu menu) {

JMenuItem item;

if (toolbarMenu == null) {

toolbarMenu = new JMenu();

} else {

toolbarMenu.removeAll();

}

//System.out.println("rebuilding toolbar menu");

// Add the single "Open" item

item = Toolkit.newJMenuItem("Open...", 'O');

item.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

base.handleOpenPrompt();

}

});

toolbarMenu.add(item);

insertToolbarRecentMenu();

item = Toolkit.newJMenuItemShift("Examples...", 'O');

item.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

showExamplesFrame();

}

});

toolbarMenu.add(item);

item = new JMenuItem(Language.text("examples.add_examples"));

item.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

base.handleOpenExampleManager();

}

});

toolbarMenu.add(item);

// Add a list of all sketches and subfolders

toolbarMenu.addSeparator();

base.populateSketchbookMenu(toolbarMenu);

// boolean found = false;

// try {

// found = base.addSketches(toolbarMenu, base.getSketchbookFolder(), true);

// } catch (IOException e) {

// Base.showWarning("Sketchbook Toolbar Error",

// "An error occurred while trying to list the sketchbook.", e);

// }

// if (!found) {

// JMenuItem empty = new JMenuItem("(empty)");

// empty.setEnabled(false);

// toolbarMenu.add(empty);

// }

}

protected int importMenuIndex = -1;

/**

* Rather than re-building the library menu for every open sketch (very slow

* and prone to bugs when updating libs, particularly with the contribs mgr),

* share a single instance across all windows.

* @since 3.0a6

* @param sketchMenu the Sketch menu that's currently active

public void removeImportMenu(JMenu sketchMenu) {

JMenu importMenu = getImportMenu();

//importMenuIndex = sketchMenu.getComponentZOrder(importMenu);

importMenuIndex = Toolkit.getMenuItemIndex(sketchMenu, importMenu);

sketchMenu.remove(importMenu);

}

/**

* Re-insert the Import Library menu. Added function so that other modes

* need not have an 'import' menu.

* @since 3.0a6

* @param sketchMenu the Sketch menu that's currently active

public void insertImportMenu(JMenu sketchMenu) {

// hard-coded as 4 in 3.0a5, change to 5 for 3.0a6, but... yuck

//sketchMenu.insert(mode.getImportMenu(), 4);

// This is -1 on when the editor window is first shown, but that's fine

// because the import menu has just been added in the Editor constructor.

if (importMenuIndex != -1) {

sketchMenu.insert(getImportMenu(), importMenuIndex);

}

public JMenu getImportMenu() {

if (importMenu == null) {

rebuildImportMenu();

}

return importMenu;

}

public void rebuildImportMenu() { //JMenu importMenu) {

if (importMenu == null) {

importMenu = new JMenu(Language.text("menu.library"));

} else {

//System.out.println("rebuilding import menu");

importMenu.removeAll();

}

JMenuItem addLib = new JMenuItem(Language.text("menu.library.add_library"));

addLib.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

base.handleOpenLibraryManager();

}

});

importMenu.add(addLib);

importMenu.addSeparator();

rebuildLibraryList();

ActionListener listener = new ActionListener() {

public void actionPerformed(ActionEvent e) {

base.activeEditor.handleImportLibrary(e.getActionCommand());

}

};

// try {

// pw = new PrintWriter(new FileWriter(System.getProperty("user.home") + "/Desktop/libs.csv"));

// } catch (IOException e1) {

// e1.printStackTrace();

// }

if (coreLibraries.size() == 0) {

JMenuItem item = new JMenuItem(getTitle() + " " + Language.text("menu.library.no_core_libraries"));

item.setEnabled(false);

importMenu.add(item);

} else {

for (Library library : coreLibraries) {

JMenuItem item = new JMenuItem(library.getName());

item.addActionListener(listener);

// changed to library-name to facilitate specification of imports from properties file

item.setActionCommand(library.getName());

importMenu.add(item);

}

if (contribLibraries.size() != 0) {

importMenu.addSeparator();

JMenuItem contrib = new JMenuItem(Language.text("menu.library.contributed"));

contrib.setEnabled(false);

importMenu.add(contrib);

HashMap<String, JMenu> subfolders = new HashMap<String, JMenu>();

for (Library library : contribLibraries) {

JMenuItem item = new JMenuItem(library.getName());

item.addActionListener(listener);

// changed to library-name to facilitate specification if imports from properties file

item.setActionCommand(library.getName());

String group = library.getGroup();

if (group != null) {

JMenu subMenu = subfolders.get(group);

if (subMenu == null) {

subMenu = new JMenu(group);

importMenu.add(subMenu);

subfolders.put(group, subMenu);

}

subMenu.add(item);

} else {

importMenu.add(item);

}

public JMenu getExamplesMenu() {

if (examplesMenu == null) {

rebuildExamplesMenu();

}

return examplesMenu;

}

public void rebuildExamplesMenu() {

if (examplesMenu == null) {

examplesMenu = new JMenu("Examples");

}

rebuildExamplesMenu(examplesMenu, false);

}

public void rebuildExamplesMenu(JMenu menu, boolean replace) {

try {

// break down the examples folder for examples

File[] subfolders = getExampleCategoryFolders();

for (File sub : subfolders) {

Base.addDisabledItem(menu, sub.getName());

// JMenuItem categoryItem = new JMenuItem(sub.getName());

// categoryItem.setEnabled(false);

// menu.add(categoryItem);

base.addSketches(menu, sub, replace);

menu.addSeparator();

}

// if (coreLibraries == null) {

// rebuildLibraryList();

// }

// get library examples

Base.addDisabledItem(menu, "Libraries");

for (Library lib : coreLibraries) {

if (lib.hasExamples()) {

JMenu libMenu = new JMenu(lib.getName());

base.addSketches(libMenu, lib.getExamplesFolder(), replace);

menu.add(libMenu);

}

// get contrib library examples

boolean any = false;

for (Library lib : contribLibraries) {

if (lib.hasExamples()) {

any = true;

}

if (any) {

menu.addSeparator();

Base.addDisabledItem(menu, "Contributed");

for (Library lib : contribLibraries) {

if (lib.hasExamples()) {

JMenu libMenu = new JMenu(lib.getName());

base.addSketches(libMenu, lib.getExamplesFolder(), replace);

menu.add(libMenu);

}

} catch (IOException e) {

e.printStackTrace();

}

/**

* Override this to control the order of the first set of example folders

* and how they appear in the examples window.

public File[] getExampleCategoryFolders() {

return examplesFolder.listFiles(new FilenameFilter() {

public boolean accept(File dir, String name) {

return dir.isDirectory() && name.charAt(0) != '.';

}

});

}

public DefaultMutableTreeNode buildExamplesTree() {

DefaultMutableTreeNode root = new DefaultMutableTreeNode("Examples");

try {

File[] examples = getExampleCategoryFolders();

for (File subFolder : examples) {

DefaultMutableTreeNode subNode = new DefaultMutableTreeNode(subFolder.getName());

if (base.addSketches(subNode, subFolder)) {

root.add(subNode);

}

DefaultMutableTreeNode foundationLibraries =

new DefaultMutableTreeNode(Language.text("examples.core_libraries"));

// Get examples for core libraries

for (Library lib : coreLibraries) {

if (lib.hasExamples()) {

DefaultMutableTreeNode libNode = new DefaultMutableTreeNode(lib.getName());

if (base.addSketches(libNode, lib.getExamplesFolder()))

foundationLibraries.add(libNode);

}

if(foundationLibraries.getChildCount() > 0) {

root.add(foundationLibraries);

}

// Get examples for third party libraries

DefaultMutableTreeNode contributedLibExamples = new

DefaultMutableTreeNode(Language.text("examples.libraries"));

for (Library lib : contribLibraries) {

if (lib.hasExamples()) {

DefaultMutableTreeNode libNode =

new DefaultMutableTreeNode(lib.getName());

base.addSketches(libNode, lib.getExamplesFolder());

contributedLibExamples.add(libNode);

}

if(contributedLibExamples.getChildCount() > 0){

root.add(contributedLibExamples);

}

} catch (IOException e) {

e.printStackTrace();

}

DefaultMutableTreeNode contributedExamplesNode =

buildContributedExamplesTrees();

if(contributedExamplesNode.getChildCount() > 0){

root.add(contributedExamplesNode);

}

return root;

}

private DefaultMutableTreeNode buildContributedExamplesTrees() {

DefaultMutableTreeNode contribExamplesNode =

new DefaultMutableTreeNode(Language.text("examples.contributed"));

try {

File[] subfolders =

ContributionType.EXAMPLES.listCandidates(examplesContribFolder);

if (subfolders == null) {

subfolders = new File[0]; //empty array

}

for (File sub : subfolders) {

if (!ExamplesContribution.isCompatible(base, sub))

continue;

DefaultMutableTreeNode subNode =

new DefaultMutableTreeNode(sub.getName());

if (base.addSketches(subNode, sub)) {

contribExamplesNode.add(subNode);

int exampleNodeNumber = -1;

for (int y = 0; y < subNode.getChildCount(); y++)

if (subNode.getChildAt(y).toString().equals("examples"))

exampleNodeNumber = y;

if (exampleNodeNumber == -1)

continue;

TreeNode exampleNode = subNode.getChildAt(exampleNodeNumber);

subNode.remove(exampleNodeNumber);

int count = exampleNode.getChildCount();

for (int x = 0; x < count; x++) {

subNode.add((DefaultMutableTreeNode) exampleNode.getChildAt(0));

}

} catch (IOException e) {

e.printStackTrace();

}

return contribExamplesNode;

}

public void rebuildExamplesFrame() {

if (examplesFrame != null) {

boolean visible = examplesFrame.isVisible();

Rectangle bounds = null;

if (visible) {

bounds = examplesFrame.getBounds();

examplesFrame.setVisible(false);

}

examplesFrame = null;

if (visible) {

showExamplesFrame();

examplesFrame.setBounds(bounds);

}

public void showExamplesFrame() {

if (examplesFrame == null) {

examplesFrame = new JFrame(getTitle() + " " + Language.text("examples"));

Toolkit.setIcon(examplesFrame);

Toolkit.registerWindowCloseKeys(examplesFrame.getRootPane(), new ActionListener() {

public void actionPerformed(ActionEvent e) {

examplesFrame.setVisible(false);

}

});

JPanel examplesPanel = new JPanel();

examplesPanel.setLayout(new BorderLayout());

examplesPanel.setBackground(Color.WHITE);

final JPanel openExamplesManagerPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));

JButton addExamplesButton = new JButton(Language.text("examples.add_examples"));

openExamplesManagerPanel.add(addExamplesButton);

openExamplesManagerPanel.setOpaque(false);

Border lineBorder = BorderFactory.createMatteBorder(0, 0, 1, 0, Color.BLACK);

Border paddingBorder = BorderFactory.createEmptyBorder(3, 5, 1, 4);

openExamplesManagerPanel.setBorder(BorderFactory.createCompoundBorder(lineBorder, paddingBorder));

openExamplesManagerPanel.setAlignmentX(Component.LEFT_ALIGNMENT);

openExamplesManagerPanel.setCursor(new Cursor(Cursor.HAND_CURSOR));

addExamplesButton.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

base.handleOpenExampleManager();

}

});

final JTree tree = new JTree(buildExamplesTree());

tree.setOpaque(true);

tree.setAlignmentX(Component.LEFT_ALIGNMENT);

tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

tree.setShowsRootHandles(true);

// expand the root

tree.expandRow(0);

// now hide the root

tree.setRootVisible(false);

// After 2.0a7, no longer expanding each of the categories at Casey's

// request. He felt that the window was too complicated too quickly.

// for (int row = tree.getRowCount()-1; row >= 0; --row) {

// tree.expandRow(row);

// }

tree.addMouseListener(new MouseAdapter() {

public void mouseClicked(MouseEvent e) {

if (e.getClickCount() == 2) {

DefaultMutableTreeNode node =

(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

int selRow = tree.getRowForLocation(e.getX(), e.getY());

//TreePath selPath = tree.getPathForLocation(e.getX(), e.getY());

//if (node != null && node.isLeaf() && node.getPath().equals(selPath)) {

if (node != null && node.isLeaf() && selRow != -1) {

SketchReference sketch = (SketchReference) node.getUserObject();

base.handleOpen(sketch.getPath());

}

});

tree.addKeyListener(new KeyAdapter() {

public void keyPressed(KeyEvent e) {

if (e.getKeyCode() == KeyEvent.VK_ESCAPE) { // doesn't fire keyTyped()

examplesFrame.setVisible(false);

}

public void keyTyped(KeyEvent e) {

if (e.getKeyChar() == KeyEvent.VK_ENTER) {

DefaultMutableTreeNode node =

(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

if (node != null && node.isLeaf()) {

SketchReference sketch = (SketchReference) node.getUserObject();

base.handleOpen(sketch.getPath());

}

});

tree.addTreeExpansionListener(new TreeExpansionListener() {

@Override

public void treeExpanded(TreeExpansionEvent event) {

updateExpanded(tree);

}

@Override

public void treeCollapsed(TreeExpansionEvent event) {

updateExpanded(tree);

}

});

tree.setBorder(new EmptyBorder(0, 5, 5, 5));

if (Base.isMacOS()) {

tree.setToggleClickCount(2);

} else {

tree.setToggleClickCount(1);

}

JScrollPane treePane = new JScrollPane(tree);

treePane.setPreferredSize(new Dimension(250, 300));

treePane.setBorder(new EmptyBorder(2, 0, 0, 0));

treePane.setOpaque(true);

treePane.setBackground(Color.WHITE);

treePane.setAlignmentX(Component.LEFT_ALIGNMENT);

examplesPanel.add(openExamplesManagerPanel,BorderLayout.PAGE_START);

examplesPanel.add(treePane, BorderLayout.CENTER);

examplesFrame.getContentPane().add(examplesPanel);

examplesFrame.pack();

restoreExpanded(tree);

}

// Space for the editor plus a li'l gap

int roughWidth = examplesFrame.getWidth() + 20;

Point p = null;

// If no window open, or the editor is at the edge of the screen

if (base.activeEditor == null ||

(p = base.activeEditor.getLocation()).x < roughWidth) {

// Center the window on the screen

examplesFrame.setLocationRelativeTo(null);

} else {

// Open the window relative to the editor

examplesFrame.setLocation(p.x - roughWidth, p.y);

}

examplesFrame.setVisible(true);

}

protected void updateExpanded(JTree tree) {

Enumeration en = tree.getExpandedDescendants(new TreePath(tree.getModel().getRoot()));

//en.nextElement(); // skip the root "Examples" node

StringBuilder s = new StringBuilder();

while (en.hasMoreElements()) {

//System.out.println(en.nextElement());

TreePath tp = (TreePath) en.nextElement();

Object[] path = tp.getPath();

for (Object o : path) {

DefaultMutableTreeNode p = (DefaultMutableTreeNode) o;

String name = (String) p.getUserObject();

//System.out.print(p.getUserObject().getClass().getName() + ":" + p.getUserObject() + " -> ");

//System.out.print(name + " -> ");

s.append(name);

s.append(File.separatorChar);

}

//System.out.println();

s.setCharAt(s.length() - 1, File.pathSeparatorChar);

}

s.setLength(s.length() - 1); // nix that last separator

String pref = "examples." + getClass().getName() + ".visible";

Preferences.set(pref, s.toString());

Preferences.save();

// System.out.println(s);

// System.out.println();

}

protected void restoreExpanded(JTree tree) {

String pref = "examples." + getClass().getName() + ".visible";

String value = Preferences.get(pref);

if (value != null) {

String[] paths = PApplet.split(value, File.pathSeparator);

for (String path : paths) {

// System.out.println("trying to expand " + path);

String[] items = PApplet.split(path, File.separator);

DefaultMutableTreeNode[] nodes = new DefaultMutableTreeNode[items.length];

expandTree(tree, null, items, nodes, 0);

}

void expandTree(JTree tree, Object object, String[] items, DefaultMutableTreeNode[] nodes, int index) {

// if (object == null) {

// object = model.getRoot();

// }

TreeModel model = tree.getModel();

if (index == 0) {

nodes[0] = (DefaultMutableTreeNode) model.getRoot();

expandTree(tree, nodes[0], items, nodes, 1);

} else if (index < items.length) {

// String item = items[0];

// TreeModel model = object.getModel();

// System.out.println(object.getClass().getName());

DefaultMutableTreeNode node = (DefaultMutableTreeNode) object;

int count = model.getChildCount(node);

// System.out.println("child count is " + count);

for (int i = 0; i < count; i++) {

DefaultMutableTreeNode child = (DefaultMutableTreeNode) model.getChild(node, i);

if (items[index].equals(child.getUserObject())) {

nodes[index] = child;

expandTree(tree, child, items, nodes, index+1);

}

} else { // last one

// PApplet.println(nodes);

tree.expandPath(new TreePath(nodes));

}

// protected TreePath findPath(FileItem item) {

// ArrayList<FileItem> items = new ArrayList<FileItem>();

//// FileItem which = item.isDirectory() ? item : (FileItem) item.getParent();

//// FileItem which = item;

// FileItem which = (FileItem) item.getParent();

// while (which != null) {

// items.add(0, which);

// which = (FileItem) which.getParent();

// }

// return new TreePath(items.toArray());

//// FileItem[] array = items.toArray();

//// return new TreePath(array);

// }

// public static void loadExpansionState(JTree tree, Enumeration enumeration) {

// if (enumeration != null) {

// while (enumeration.hasMoreElements()) {

// TreePath treePath = (TreePath) enumeration.nextElement();

// tree.expandPath(treePath);

// }

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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processing/app/src/processing/app/Mode.java at fixJavaModeLoading · Jonham/processing · GitHub

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