/** Reads the view from the specified uri. */
@Override
public void read(URI f, URIChooser chooser) throws IOException {
try {
final Drawing drawing = createDrawing();
InputFormat inputFormat = drawing.getInputFormats().get(0);
inputFormat.read(f, drawing, true);
SwingUtilities.invokeAndWait(
new Runnable() {
@Override
public void run() {
view.getDrawing().removeUndoableEditListener(undo);
view.setDrawing(drawing);
view.getDrawing().addUndoableEditListener(undo);
undo.discardAllEdits();
}
});
} catch (InterruptedException e) {
InternalError error = new InternalError();
e.initCause(e);
throw error;
} catch (InvocationTargetException e) {
InternalError error = new InternalError();
e.initCause(e);
throw error;
}
}
/**
* Set the object to be edited.
*
* @param value The object to be edited.
*/
public void setObject(Object value) {
if (!(_type.isInstance(value))) {
throw new IllegalArgumentException(value.getClass() + " is not of type " + _type);
}
_value = value;
// Disable event generation.
_squelchChangeEvents = true;
// Iterate over each property, doing a lookup on the associated editor
// and setting the editor's value to the value of the property.
Iterator it = _prop2Editor.keySet().iterator();
while (it.hasNext()) {
PropertyDescriptor desc = (PropertyDescriptor) it.next();
PropertyEditor editor = (PropertyEditor) _prop2Editor.get(desc);
Method reader = desc.getReadMethod();
if (reader != null) {
try {
Object val = reader.invoke(_value, null);
editor.setValue(val);
} catch (IllegalAccessException ex) {
ex.printStackTrace();
} catch (InvocationTargetException ex) {
ex.getTargetException().printStackTrace();
}
}
}
// Enable event generation.
_squelchChangeEvents = false;
}
/**
* Try to execute given method on given object. Handles invocation target exceptions. XXX nearly
* duplicates tryMethod in JGEngine.
*
* @return null means method does not exist or returned null/void
*/
static Object tryMethod(Object o, String name, Object[] args) {
try {
Method met = JREEngine.getMethod(o.getClass(), name, args);
if (met == null) return null;
return met.invoke(o, args);
} catch (InvocationTargetException ex) {
Throwable ex_t = ex.getTargetException();
ex_t.printStackTrace();
return null;
} catch (IllegalAccessException ex) {
System.err.println("Unexpected exception:");
ex.printStackTrace();
return null;
}
}
public void propertyChange(PropertyChangeEvent e) {
if (_squelchChangeEvents) return;
PropertyEditor editor = (PropertyEditor) e.getSource();
PropertyDescriptor prop = (PropertyDescriptor) _editor2Prop.get(editor);
Method writer = prop.getWriteMethod();
if (writer != null) {
try {
Object[] params = {editor.getValue()};
writer.invoke(_value, params);
setObject(_value);
firePropertyChange(_value, prop.getName(), null, editor.getValue());
} catch (IllegalAccessException ex) {
ex.printStackTrace();
} catch (InvocationTargetException ex) {
ex.getTargetException().printStackTrace();
}
}
}
/** Clears the view. */
@Override
public void clear() {
final Drawing newDrawing = createDrawing();
try {
SwingUtilities.invokeAndWait(
new Runnable() {
@Override
public void run() {
view.getDrawing().removeUndoableEditListener(undo);
view.setDrawing(newDrawing);
view.getDrawing().addUndoableEditListener(undo);
undo.discardAllEdits();
}
});
} catch (InvocationTargetException ex) {
ex.printStackTrace();
} catch (InterruptedException ex) {
ex.printStackTrace();
}
}
/**
* ** Invokes this MethodAction with the currently specified array/list of arguments ** @return
* The return Object
*/
public Object invoke() throws Throwable {
this.error = null;
this.rtnValue = null;
try {
if (this.method instanceof Constructor) {
this.rtnValue = ((Constructor) this.method).newInstance(this.getArgs());
} else if (this.method instanceof Method) {
this.rtnValue = ((Method) this.method).invoke(this.getTarget(), this.getArgs());
}
return this.rtnValue;
} catch (InvocationTargetException ite) {
this.error = ite.getCause();
if (this.error == null) {
this.error = ite;
}
throw this.error;
} catch (Throwable t) { // trap any remaining method invocation error
this.error = t;
throw this.error;
}
}
/** Look on disk for an editor with the class name 'ocName'. */
PluggableEditor loadEditorFromDisk(String ocName) {
// if here, we need to look on disk for a pluggable editor class...
log.finer("looking for ocName: " + ocName);
try {
Class c = myLoader.loadClass(ocName);
Constructor constructor = c.getConstructor(new Class[0]);
// XXX If the pluggable editor has an error in the constructor, under some
// XXX circumstances it can fail so badly that this call never returns, and
// XXX the thread hangs! It doesn't even get to the exception handler below...
// XXX but sometimes if the constructor fails everything works as expected. Wierd.
PluggableEditor editor = (PluggableEditor) constructor.newInstance(new Object[0]);
editors.put(ocName, editor); // add the new editor to our list
return editor;
} catch (Exception e) // expected condition - just means no pluggable editor available
{
if (e
instanceof
InvocationTargetException) // rare exception - an error was encountered in the plugin's
// constructor.
{
log.warning("unable to load special editor for: '" + ocName + "' " + e);
if (JXConfig.debugLevel >= 1) {
log.warning("Error loading plugin class: ");
((InvocationTargetException) e).getTargetException().printStackTrace();
}
}
log.log(Level.FINEST, "'Expected' Error loading " + ocName, e);
editors.put(ocName, NONE); // add a blank place holder - we can't load
// an editor for this, and there's no point looking again. (change if want dynamic loading,
// i.e. look *every* time)
}
return null; // only here if an error has occured.
}
