/**
* Opens a project.
*
* @param directory Where the project is stored.
* @return the BProject that describes the newly opened project or null if it cannot be opened.
*/
public final BProject openProject(File directory) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
// Yes somebody may just call it with null, for fun..
if (directory == null) return null;
Project openProj = Project.openProject(directory.getAbsolutePath(), null);
if (openProj == null) return null;
// a hack, since bluej does not handle "opening" of projects correctly.
// this code should really be into openProject or it should not be possible to open
// a project is the initial package name is not there.
Package pkg = openProj.getCachedPackage(openProj.getInitialPackageName());
if (pkg == null) return null;
// I make a new identifier out of this
Identifier aProject = new Identifier(openProj, pkg);
// This will make the frame if not already there. should not be needed...
try {
aProject.getPackageFrame();
} catch (ExtensionException exc) {
}
// Note: the previous Identifier is not used here.
return openProj.getBProject();
}
/**
* Creates a new BlueJ project.
*
* @param directory where you want the project be placed, it must be writable.
* @param projectType the type of project, such as ME or SE.
* @return the newly created BProject if successful, null otherwise.
*/
public BProject newProject(File directory, int projectType) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
String pathString = directory.getAbsolutePath();
if (!pathString.endsWith(File.separator)) pathString += File.separator;
if (!Project.createNewProject(pathString, projectType == ME_PROJECT)) return null;
return openProject(directory);
}
/**
* Returns the language-dependent label with the given key. The search order is to look first in
* the extension's <code>label</code> files and if the requested label is not found in the BlueJ
* system <code>label</code> files. Extensions' labels are stored in a Property format and must be
* jarred together with the extension. The path searched is equivalent to the bluej/lib/[language]
* style used for the BlueJ system labels. E.g. to create a set of labels which can be used by
* English, Italian and German users of an extension, the following files would need to be present
* in the extension's Jar file:
*
* <pre>
* lib/english/label
* lib/italian/label
* lib/german/label
* </pre>
*
* The files named <code>label</code> would contain the actual label key/value pairs.
*
* @param key Description of the Parameter
* @return The label value
*/
public String getLabel(String key) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
// If there are no label for this extension I can only return the system ones.
if (localLabels == null) return Config.getString(key, key);
// In theory there are label for this extension let me try to get them
String aLabel = localLabels.getProperty(key, null);
// Found what I wanted, job done.
if (aLabel != null) return aLabel;
// ok, the only hope is to get it from the system
return Config.getString(key, key);
}
/**
* Returns the currently selected package. The current package is the one that is currently
* selected by the user interface. It can return null if there is no currently open package.
*
* @return The currentPackage value
*/
public BPackage getCurrentPackage() {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
// This is here and NOT into a BProject since it depends on user interface.
PkgMgrFrame pmf = PkgMgrFrame.getMostRecent();
// If there is nothing at all open there is no Frame open...
if (pmf == null) return null;
Package pkg = pmf.getPackage();
// The frame may be there BUT have no package.
if (pkg == null) return null;
return pkg.getBPackage();
}
/**
* Returns all currently open projects. Returns an empty array if no projects are open.
*
* @return The openProjects value
*/
public BProject[] getOpenProjects() {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
Collection projects = Project.getProjects();
BProject[] result = new BProject[projects.size()];
Iterator iter;
int index;
for (iter = projects.iterator(), index = 0; iter.hasNext(); index++) {
Project prj = (Project) iter.next();
result[index] = prj.getBProject();
}
return result;
}
/**
* Notify to all valid extensions that this menu Item is about to be displayed.
*
* @param event The associated event
*/
@Override
public void popupMenuWillBecomeVisible(PopupMenuEvent event) {
int itemsCount = 0;
JPopupMenu aPopup = (JPopupMenu) event.getSource();
MenuElement[] elements = aPopup.getSubElements();
for (int index = 0; index < elements.length; index++) {
JComponent aComponent = (JComponent) elements[index].getComponent();
if (aComponent == null) {
continue;
}
if (!(aComponent instanceof JMenuItem)) {
continue;
}
ExtensionWrapper aWrapper =
(ExtensionWrapper) aComponent.getClientProperty("bluej.extmgr.ExtensionWrapper");
if (aWrapper == null) {
continue;
}
if (!aWrapper.isValid()) {
popupMenu.remove(aComponent);
continue;
}
aWrapper.safePostMenuItem(menuGenerator, (JMenuItem) aComponent);
itemsCount++;
}
if (itemsCount <= 0) {
popupMenu.remove(menuSeparator);
}
}
/**
* Sets a property associated with this extension into the standard BlueJ property repository. The
* property name does not need to be fully qualified since a prefix will be prepended to it.
*
* @param property The name of the required global property
* @param value the required value of that property.
*/
public void setExtensionPropertyString(String property, String value) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
String thisKey = myWrapper.getSettingsString(property);
Config.putPropString(thisKey, value);
}
/**
* Return a property associated with this extension from the standard BlueJ property repository.
* You must use the setExtensionPropertyString to write any property that you want stored. You can
* then come back and retrieve it using this function.
*
* @param property The name of the required global property.
* @param def The default value to use if the property cannot be found.
* @return the value of that property.
*/
public String getExtensionPropertyString(String property, String def) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
String thisKey = myWrapper.getSettingsString(property);
return Config.getPropString(thisKey, def);
}
/**
* Returns a property from BlueJ's properties, or the given default value if the property is not
* currently set.
*
* @param property The name of the required global property
* @param def The default value to use if the property cannot be found.
* @return the value of the property.
*/
public String getBlueJPropertyString(String property, String def) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
return Config.getPropString(property, def);
}
/**
* Returns the path of the user configuration directory. This can be used to locate user dependent
* information. Having the directory you can then locate a file within it.
*
* @return The userConfigDir value
*/
public File getUserConfigDir() {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
return Config.getUserConfigDir();
}
/**
* Returns the path of the <code><BLUEJ_HOME>/lib</code> system directory. This can be used
* to locate systemwide configuration files. Having the directory you can then locate a file
* within it.
*
* @return The systemLibDir value
*/
public File getSystemLibDir() {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
return Config.getBlueJLibDir();
}
/**
* Install a new preference panel for this extension. If you want to delete a previously installed
* preference panel, then set it to null
*
* @param prefGen a class instance that implements the PreferenceGenerator interface.
*/
public void setPreferenceGenerator(PreferenceGenerator prefGen) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
currentPrefGen = prefGen;
prefManager.panelRevalidate();
}
/**
* Install a new menu generator for this extension. If you want to delete a previously installed
* menu, then set it to null
*
* @param menuGen The new menuGenerator value
*/
public void setMenuGenerator(MenuGenerator menuGen) {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
currentMenuGen = menuGen;
}
/**
* Returns the current frame being displayed. Can be used (e.g.) as a "parent" frame for
* positioning modal dialogs. If there is a package currently open, it's probably better to use
* its <code>getFrame()</code> method to provide better placement.
*
* @return The currentFrame value
*/
public Frame getCurrentFrame() {
if (!myWrapper.isValid()) throw new ExtensionUnloadedException();
return PkgMgrFrame.getMostRecent();
}