I develop JFace Wizard dialog. WindowBuilder allow to edit wizard pages, but i don't want to put my pages into separate files. How to instruct WindowBuilder parser to allow edit private class ? I've tried #wbp.parser.preferredRoot and #wbp.parser.entryPoint tags as below, but doesn't work.
public class ResetPasswordDialog extends Wizard {
...
#Override
public void addPages() {
Page1 p = new Page1(); // #wbp.parser.preferredRoot
addPage(p);
addPage(new Page2());
addPage(new Page3());
}
}
class Page1 extends WizardPage {
/**
* #wbp.parser.entryPoint
*/
#Override
public void createControl(Composite parent) {
...
}
}
class Page2 extends WizardPage {
}
class Page3 extends WizardPage {
}
WindowBuilder will not work with private components or inner classes. This is intentional and will not be changed. If you want to use WindowBuilder, each class must be extracted to a separate file.
Related
As the question states, I want to know how I can make a function in a class that other classes can access, but subclasses cannot. I have a class that has some public getters and setters that I want my document class to have access to call, but I don't want the subclass to have these functions because they'd be useless on the subclass.
For example
public class SomeClass
{
public function SomeClass() {}
public function notInherited():void { trace("Not inherited"; }
}
public class OtherClass extends SomeClass
{
public function OtherClass()
{
notInherited(); //Want this to return an error
}
}
public class HasAccess
{
public function HasAccess()
{
notInherited(); //Not inherited
}
}
I know this probably has something to do with custom namespaces, but after searching up about them I still don't really have much understanding of how they work. That's about it; thanks for reading.
You can't do this quite in the general terms you've asked, but you can do this if you put your document class and your other class in the same package and use internal instead of public, and you put your sub-class in a different package. The internal keyword limits access to classes in the same package.
Example (notice the package statements):
package main {
public class Main extends MovieClip {
public function Main() {
var stuff:Stuff = new Stuff();
stuff.doStuff();
}
}
}
package main {
public class Stuff {
internal function doStuff():void { }
}
}
package other {
public class OtherStuff extends Stuff {
public function OtherStuff() {
// no access to this.doStuff()
}
}
}
As for using a namespace, this can be a good option to make the intent of your code more clear, but it doesn't actually limit access in any new way, it just requires access to be more deliberate: while the namespace does hide visibility of the API to anyone who doesn't use the namespace, anyone can use the namespace and have access to the API without any additional limits (ie public, internal and protected).
Still, this may be all you are after. Here's an example which uses a public namespace and no packages:
// my_stuff.as
package {
public namespace my_stuff;
}
// Stuff.as
package {
public class Stuff {
my_stuff function doStuff():void { }
}
}
// Main.as
package {
import flash.display.MovieClip;
public class Main extends MovieClip {
public function Main() {
use namespace my_stuff; // you can put this above the class to give the entire class access to the namespace
var stuff:Stuff = new Stuff();
stuff.doStuff();
}
}
}
// OtherStuff.as
package {
public class OtherStuff extends Stuff {
public function OtherStuff() {
this.doStuff(); // not allowed
this.my_stuff::doStuff(); // allowed
// also allowed
use namespace my_stuff;
this.doStuff();
}
}
}
(Note that if your namespace is in a package, ex package stuff { public namespace my_stuff }, you must import the namespace just like a class, for example: import stuff.my_stuff)
i have a class with the entry point and the onModuleLoad. That class have a getter for the panel public void sethauptPanel(Composite composite) {
hauptPanel.clear();
hauptPanel.add(composite);
}
but i need to send an object from my class to change it
MenuItem anmelden = new MenuItem(konstanten.anmelden(), new Command() {
#Override
public void execute() {
sethauptPanel(new AdminLoginView(!!!!this!!!));
}
});
I try this, but than he have the Command. I try classname classname = this.
But i can't change the panel.
You have to use className.this
So if your class is named : MainPanel
you should use : new AdminLoginView(MainPanel.this);
This is first class with "gordz()" function
public class Model extends Object implements IModel
{
public static function gordz() : void
{
newobject = gallas.pop();
}
}
Now i try to override the function but i still want that old code is executed... How can i extend this function correctly?
public class LOL extends Model
{
override public static function gordz() : void
{
... //New code + execute old code
}
}
Neither super
You cannot use the super statement in a static method.
nor override
You cannot use the override attribute on any of the following:
[...]
Static methods
can be used in a static method.
Whatever you are trying to do should be accomplished in a different way.
In the document class, I got the following code:
package {
...
public class Main extends Sprite {
public function Main(){
...
model:IModel = new Model();
controller:IController = new Controller(model);
var controls:CompositeView = new Controls(model,controller)
//Accessing controls.x provokes 1202: Access of undefined property x in package view
}
}
}
Where class CompositeView is a extension of Component which in turn extends Sprite.
Component:
package view
{
....
public class Component extends Sprite
{
...
}
}
CompositeView:
package view
{
....
public class CompositeView extends Component
{
...
}
}
Controls:
package view
{
....
public class Controls extends CompositeView
{
...
}
}
But unfortunately, when I try to access controls.x I get a undefined property error.
Changing the package for all classes to the same name fixed this issue. E.g use package for everything instead of package and package.view.
What can be done in Actionscript to keep code organization and avoid this issue ?
Problem solved: var controls was used as a package name, changing name of the variable solved.
I have Swing application which manipulate shapes. In my toolbar I have a zoom function that the user activate by clicking on a button, then the cursor of the mouse changes to a magnifier which is an image.
My problem is actually the cursor, for some raisons, when I set the cursor on the panel displaying the shapes, I can't save my model and I get the java.io.NotSerializableException: sun.awt.image.ToolkitImage exception.
My model
public class Document implements IDocObservable,Serializable{
...
public void updateCursor() {
Iterator<IDocObserver> iter = docObservers.iterator();
while (iter.hasNext()) {
iter.next().docCursorChanged();
}
}
...
}
The action
public class ZoomInAction extends AbstractAction {
public void actionPerformed(ActionEvent arg0) {
...
Application.getInstance().getActiveDocument().updateCursor();
}
}
The display Panel (note : if I comment the setCursor(..) line, I'am able to save )
public class Window extends JPanel implements IDocObserver{
...
public void paint(Graphics g){
//drawing the differents shapes
}
#Override
public void docCursorChanged() {
setCursor(Utile.getZoomInCursor();
}
}
}
The class that provide the cursor
public class Utile {
private static Image zoomIn = toolkit.getImage(Utile.class.getResource("/images/zoomin_mouse.png"));
...
public static Cursor getZoomInCursor() {
return toolkit.createCustomCursor(zoomIn, hotSpot, "");
}
}
The writing of the object is a standard Java methode with outStream.writeObject(doc);
thanks
You aren't just serializing a model, you are serializing a list of IDocObservers, which includes Window extends JPanel implements IDocObserver. IOW you are serializing a JPanel. Don't do that: see the warning at the top of the Javadoc. You don't need to save the observers along with the observable, surely: can't you make that list transient?