Home » Eclipse Projects » JFace » [Databinding] Problems with DelegatingValueProperty
| [Databinding] Problems with DelegatingValueProperty [message #488964] |
Wed, 30 September 2009 21:55  |
 Heiko Ahlig
Messages: 62
Registered: July 2009 |
Member |
|
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Hi,
in consquence of Matthews answer for my last question/ problems ->
http://www.eclipse.org/forums/index.php?t=msg&th=153839& amp;start=0&S=a3c7e77489cf06ebc8fb6630bff94d9b
I try to use the DelegatingValueProperty.class in a more complex scenario.
And now I have the next problems when I work there with abstract classes
and generic types.
In my example I try 2 versions to build a DelegatingValueProperty
1.Version:
------------------------------------
IValueProperty viewProp = new DelegatingValueProperty(){
IValueProperty
dataCompositeProp=BeanProperties.value(DataComposite.class, "basic");
IValueProperty personProp = BeanProperties.value(Person.class, "name");
IValueProperty carProp = BeanProperties.value(Car.class, "marke");
IValueProperty cityProp = BeanProperties.value(City.class, "name");
protected IValueProperty doGetDelegate(Object source) {
if (source instanceof DataComposite){
DataComposite comp=(DataComposite)source;
if(comp.getBasic() instanceof Person){
return dataCompositeProp.value(personProp);}
else if(comp.getBasic() instanceof Car){
return dataCompositeProp.value(carProp);}
else if(comp.getBasic() instanceof City){
return dataCompositeProp.value(cityProp);}
return null;
}
else if(source instanceof Person){
return personProp;}
else if(source instanceof Car){
return carProp;}
else if(source instanceof City){
return cityProp;}
return null;
}};
It doesn't give errors but it also shows not all Labels, but I don't
know if:
valuePro.value(detailValueProp)
it's useable.
My 2. version generate binding errors like:
java.lang.IllegalArgumentException: Could not find property with name
name in class class de.miku.jfacetree.SnippetProblemTreeViewer$MainEntity
at
org.eclipse.core.internal.databinding.beans.BeanPropertyHelp er.getPropertyDescriptor(BeanPropertyHelper.java:177)
at
org.eclipse.core.databinding.beans.BeanProperties.value(Bean Properties.java:116)
.......
2. Version:
------------------------------------
IValueProperty viewProp = new DelegatingValueProperty(){
IValueProperty
dataCompositeProp=BeanProperties.value(DataComposite.class, "basic");
IValueProperty personProp = BeanProperties.value(Person.class, "name");
IValueProperty carProp = BeanProperties.value(Car.class, "marke");
IValueProperty cityProp = BeanProperties.value(City.class, "name");
protected IValueProperty doGetDelegate(Object source) {
if (source instanceof DataComposite){
DataComposite comp=(DataComposite)source;
if(comp.getBasic() instanceof Person){
return BeanProperties.value(DataComposite.class,"basic.name");}
else if(comp.getBasic() instanceof Car){
return BeanProperties.value(DataComposite.class,"basic.marke");}
else if(comp.getBasic() instanceof City){
return BeanProperties.value(DataComposite.class, "basic.name");}
return null;
}
else if(source instanceof Person){
return personProp;}
else if(source instanceof Car){
return carProp;}
else if(source instanceof City){
return cityProp;}
return null;
}};
Do are my aporachs completely wrong, or it is only a small error?
Thanks in advance
Heiko
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filename="SnippetProblemTreeViewer.java"
package de.miku.jfacetree;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.property.list.IListProperty;
import org.eclipse.core.databinding.property.list.MultiListProperty ;
import org.eclipse.core.databinding.property.value.DelegatingValueP roperty;
import org.eclipse.core.databinding.property.value.IValueProperty;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.viewers.ObservableListTreeCont entProvider;
import org.eclipse.jface.databinding.viewers.ObservableMapCellLabel Provider;
import org.eclipse.jface.layout.TreeColumnLayout;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.TreeViewerColumn;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
* @since 3.2
*
*/
public class SnippetProblemTreeViewer {
protected Shell shell;
private TreeViewer viewer;
private Composite composite;
private Model model;
/**
* Launch the application
*
* @param args
*/
public static void main(String[] args) {
try {
SnippetProblemTreeViewer window = new SnippetProblemTreeViewer();
window.open();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Open the window
*/
public void open() {
final Display display = Display.getDefault();
Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
public void run() {
createContents();
shell.open();
shell.layout();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
});
}
protected void createContents() {
shell = new Shell();
shell.setSize(509, 375);
shell.setText("SnippetProblemTreeViewer.java");
shell.setLayout(new GridLayout());
composite = new Composite(shell, SWT.NONE);
viewer = new TreeViewer(composite, SWT.FULL_SELECTION | SWT.MULTI
| SWT.BORDER);
bindUI();
}
// Minimal JavaBeans support
public abstract class AbstractModelObject {
private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
this);
public void addPropertyChangeListener(PropertyChangeListener listener) {
propertyChangeSupport.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
propertyChangeSupport.removePropertyChangeListener(listener) ;
}
protected void firePropertyChange(String propertyName, Object oldValue,
Object newValue) {
propertyChangeSupport.firePropertyChange(propertyName, oldValue,
newValue);
}
}
public abstract class MainEntity extends AbstractModelObject {
// only dummy at this example
}
public class Car extends MainEntity {
private String marke;
private String sign;
public Car(String marke, String sign) {
super();
this.marke = marke;
this.sign = sign;
}
public String getMarke() {
return marke;
}
public void setMarke(String marke) {
firePropertyChange("marke", this.marke, this.marke = marke);
}
public String getSign() {
return sign;
}
public void setSign(String sign) {
firePropertyChange("sign", this.sign, this.sign = sign);
}
}
public class City extends MainEntity {
private String name;
private String zipCode;
public City(String zipCode, String name) {
super();
this.zipCode = zipCode;
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
firePropertyChange("name", this.name, this.name = name);
}
public String getZipCode() {
return zipCode;
}
public void setZipCode(String zipCode) {
firePropertyChange("zipCode", this.zipCode, this.zipCode = zipCode);
}
}
public class Person extends MainEntity {
private String name;
private int age;
public Person(String name, int age) {
super();
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
firePropertyChange("name", this.name, this.name = name);
}
public int getAge() {
return age;
}
public void setAge(int age) {
firePropertyChange("age", this.age, this.age = age);
}
}
public class DataComposite<T extends MainEntity> extends
AbstractModelObject {
private T basic;
private List<Car> cars;
private List<Person> persons;
private List<City> cities;
public void setBasic(T basic) {
this.basic = basic;
}
public T getBasic() {
return basic;
}
public void setCars(List<Car> cars) {
firePropertyChange("cars", this.cars, this.cars = cars);
}
public List<Car> getCars() {
if (this.cars == null) {
this.cars = new ArrayList<Car>();
}
return new ArrayList<Car>(this.cars);
}
public void setPersons(List<Person> persons) {
firePropertyChange("persons", this.persons, this.persons = persons);
}
public List<Person> getPersons() {
if (this.persons == null) {
this.persons = new ArrayList<Person>();
}
return new ArrayList<Person>(persons);
}
public void setCities(List<City> cities) {
firePropertyChange("cities", this.cities, this.cities = cities);
}
public List<City> getCities() {
if (this.cities == null) {
this.cities = new ArrayList<City>();
}
return new ArrayList<City>(cities);
}
}
public class Model extends AbstractModelObject {
private List<DataComposite<? extends MainEntity>> result;
public List<DataComposite<? extends MainEntity>> getResult() {
if (result == null) {
result = new ArrayList<DataComposite<? extends MainEntity>>();
}
return new ArrayList<DataComposite<? extends MainEntity>>(result);
}
public void setResult(List<DataComposite<? extends MainEntity>> result) {
firePropertyChange("result", this.result, this.result = result);
}
public Model() {
init();
}
public void init() {
ArrayList<DataComposite<? extends MainEntity>> myList = new ArrayList<DataComposite<? extends MainEntity>>();
DataComposite<City> dci1 = new DataComposite<City>();
dci1.setBasic(getRandomCity());
dci1.setCars(getCarList());
myList.add(dci1);
DataComposite<City> dci2 = new DataComposite<City>();
dci2.setBasic(getRandomCity());
dci2.setPersons(getPersonList());
myList.add(dci2);
DataComposite<Person> dp = new DataComposite<Person>();
dp.setBasic(getRandomPerson());
dp.setCities(getCityList());
dp.setCars(getCarList());
myList.add(dp);
setResult(myList);
}
private Random random = new Random();
private Person[] persons = new Person[] { new Person("Heiko", 32),
new Person("Joachim", 56), new Person("Ellen", 52),
new Person("Uwe", 32), new Person("Albert", 80),
new Person("Irmtraud", 78), new Person("Thomas", 32),
new Person("Karsten", 56), new Person("Nadin", 52), };
private Person getRandomPerson() {
int x = random.nextInt(persons.length);
return persons[x];
}
private List<Person> getPersonList() {
return Arrays.asList(persons);
}
private Car[] cars = new Car[] { new Car("Volvo", "B-B-001"),
new Car("Opel", "Y-B-001"), new Car("VW", "BW-B-601"),
new Car("Audi", "BA-B-001"), new Car("Porsche", "WE-K-001"), };
private Car getRandomCar() {
int x = random.nextInt(cars.length);
return cars[x];
}
private List<Car> getCarList() {
return Arrays.asList(cars);
}
private City[] cities = new City[] { new City("14057", "Berlin"),
new City("06543", "Wippra"), new City("18004", "Leipzig"),
new City("55116", "Mainz"), new City("13123", "Berlin"), };
private City getRandomCity() {
int x = random.nextInt(cities.length);
return cities[x];
}
private List<City> getCityList() {
return Arrays.asList(cities);
}
}
public class ModObservableMapCellLabelProvider extends
ObservableMapCellLabelProvider {
Image compositeImage = createCompositeImage();
Image personImage = createPersonImage();
Image carImage = createCarImage();
Image cityImage = createCityImage();
public ModObservableMapCellLabelProvider(IObservableMap attributeMap) {
super(attributeMap);
}
private Image createCarImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
gc.fillArc(1, 1, 10, 10, 0, 360);
gc.dispose();
return catalogImage;
}
private Image createCityImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
gc.fillArc(1, 1, 10, 10, 0, 360);
gc.dispose();
return catalogImage;
}
private Image createPersonImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
gc.fillPolygon(new int[] { 1, 10, 5, 1, 6, 1, 10, 10, 1, 10 });
gc.dispose();
return catalogImage;
}
private Image createCompositeImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
gc.fillPolygon(new int[] { 1, 10, 5, 1, 6, 1, 10, 10, 1, 10 });
gc.dispose();
return catalogImage;
}
@Override
public void update(ViewerCell cell) {
super.update(cell);
if (cell.getElement() instanceof DataComposite) {
cell.setImage(compositeImage);
} else if (cell.getElement() instanceof Person) {
cell.setImage(personImage);
} else if (cell.getElement() instanceof Car) {
cell.setImage(carImage);
} else if (cell.getElement() instanceof City) {
cell.setImage(cityImage);
}
}
}
private void bindUI() {
IListProperty childrenProperty = new MultiListProperty(
new IListProperty[] {
/*
* Why doesn't work this?
*/
// BeanProperties.list(Model.class, "result"),
// BeanProperties.list(DataComposite.class,"persons"),
// BeanProperties.list(DataComposite.class,"cars"),
// BeanProperties.list(DataComposite.class, "cities")
BeanProperties.list("result"),
BeanProperties.list("persons"),
BeanProperties.list("cars"),
BeanProperties.list("cities") });
ObservableListTreeContentProvider contentProvider = new ObservableListTreeContentProvider(
childrenProperty.listFactory(), null);
viewer.setContentProvider(contentProvider);
TreeViewerColumn column = new TreeViewerColumn(viewer, SWT.LEFT);
TreeColumnLayout viewerLayout = new TreeColumnLayout();
viewerLayout.setColumnData(column.getColumn(),
new ColumnWeightData(100));
composite.setLayout(viewerLayout);
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
Button reinitModelButton = new Button(shell, SWT.PUSH);
reinitModelButton.setText("Reinit Model");
reinitModelButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
model.init();
}
});
/*
* Version 1
*/
IValueProperty viewProp = new DelegatingValueProperty() {
IValueProperty dataCompositeProp = BeanProperties.value(
DataComposite.class, "basic");
IValueProperty personProp = BeanProperties.value(Person.class,
"name");
IValueProperty carProp = BeanProperties.value(Car.class, "marke");
IValueProperty cityProp = BeanProperties.value(City.class, "name");
protected IValueProperty doGetDelegate(Object source) {
if (source instanceof DataComposite) {
DataComposite comp = (DataComposite) source;
if (comp.getBasic() instanceof Person) {
return dataCompositeProp.value(personProp);
} else if (comp.getBasic() instanceof Car) {
return dataCompositeProp.value(carProp);
} else if (comp.getBasic() instanceof City) {
return dataCompositeProp.value(cityProp);
}
return null;
} else if (source instanceof Person) {
return personProp;
} else if (source instanceof Car) {
return carProp;
} else if (source instanceof City) {
return cityProp;
}
return null;
}
};
/*
* Version 2
*/
// IValueProperty viewProp = new DelegatingValueProperty(){
// IValueProperty
// dataCompositeProp=BeanProperties.value(DataComposite.class, "basic");
// IValueProperty personProp = BeanProperties.value(Person.class,
// "name");
// IValueProperty carProp = BeanProperties.value(Car.class, "marke");
// IValueProperty cityProp = BeanProperties.value(City.class, "name");
//
//
// protected IValueProperty doGetDelegate(Object source) {
// if (source instanceof DataComposite){
// DataComposite comp=(DataComposite)source;
// if(comp.getBasic() instanceof Person){
// return BeanProperties.value(DataComposite.class,"basic.name");
// }
// else if(comp.getBasic() instanceof Car){
// return BeanProperties.value(DataComposite.class,"basic.marke");
// }
// else if(comp.getBasic() instanceof City){
// return BeanProperties.value(DataComposite.class, "basic.name");
// }
// return null;
// }
// else if(source instanceof Person){
// return personProp;
// }
// else if(source instanceof Car){
// return carProp;
// }
// else if(source instanceof City){
// return cityProp;
// }
//
// return null;
// }
// };
contentProvider.getKnownElements();
IObservableMap details = viewProp.observeDetail(contentProvider
.getKnownElements());
column.setLabelProvider(new ModObservableMapCellLabelProvider(details));
model = new Model();
viewer.setInput(model);
}
}
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| Re: [Databinding] Problems with DelegatingValueProperty -> Solved [message #489528 is a reply to message #489220] |
Sun, 04 October 2009 14:17  |
Heiko Ahlig
Messages: 62
Registered: July 2009 |
Member |
|
|
This is a multi-part message in MIME format.
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Hi Matthew,
thanks for your quick answer,
now it works fine.
But why are the properties-APi nowhere to find?
Greetings
Heiko
Am 02.10.2009 00:12, schrieb Matthew Hall:
> Heiko Ahlig wrote:
> > I try to use the DelegatingValueProperty.class in a more complex
> scenario.
> >
> > And now I have the next problems when I work there with abstract classes
> > and generic types.
> >
> > In my example I try 2 versions to build a DelegatingValueProperty
>
> > Do are my aporachs completely wrong, or it is only a small error?
>
> Here is the detail you're missing (from
> DelegatingValueProperty.doGetDelegate javadoc):
>
> * Implementers must ensure that repeated calls to this method with the same
> * source object returns the same delegate instance.
>
> I have one of two solutions to propose, depending on whether the
> DataComposite.basic property is mutable.
>
> Matthew
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name="SnippetProblemTreeViewer_Solved.java"
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filename="SnippetProblemTreeViewer_Solved.java"
package de.miku.jfacetree;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.property.list.IListProperty;
import org.eclipse.core.databinding.property.list.MultiListProperty ;
import org.eclipse.core.databinding.property.value.DelegatingValueP roperty;
import org.eclipse.core.databinding.property.value.IValueProperty;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.databinding.viewers.ObservableListTreeCont entProvider;
import org.eclipse.jface.databinding.viewers.ObservableMapCellLabel Provider;
import org.eclipse.jface.layout.TreeColumnLayout;
import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.TreeViewerColumn;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
* @since 3.2
*
*/
public class SnippetProblemTreeViewer_Solved {
protected Shell shell;
private TreeViewer viewer;
private Composite composite;
private Model model;
/**
* Launch the application
*
* @param args
*/
public static void main(String[] args) {
try {
SnippetProblemTreeViewer_Solved window = new SnippetProblemTreeViewer_Solved();
window.open();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Open the window
*/
public void open() {
final Display display = Display.getDefault();
Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
public void run() {
createContents();
shell.open();
shell.layout();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
});
}
protected void createContents() {
shell = new Shell();
shell.setSize(509, 375);
shell.setText("SnippetProblemTreeViewer.java");
shell.setLayout(new GridLayout());
composite = new Composite(shell, SWT.NONE);
viewer = new TreeViewer(composite, SWT.FULL_SELECTION | SWT.MULTI
| SWT.BORDER);
bindUI();
}
// Minimal JavaBeans support
public abstract class AbstractModelObject {
private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
this);
public void addPropertyChangeListener(PropertyChangeListener listener) {
propertyChangeSupport.addPropertyChangeListener(listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
propertyChangeSupport.removePropertyChangeListener(listener) ;
}
protected void firePropertyChange(String propertyName, Object oldValue,
Object newValue) {
propertyChangeSupport.firePropertyChange(propertyName, oldValue,
newValue);
}
}
public abstract class MainEntity extends AbstractModelObject {
// only dummy at this example
}
public class Car extends MainEntity {
private String marke;
private String sign;
public Car(String marke, String sign) {
super();
this.marke = marke;
this.sign = sign;
}
public String getMarke() {
return marke;
}
public void setMarke(String marke) {
firePropertyChange("marke", this.marke, this.marke = marke);
}
public String getSign() {
return sign;
}
public void setSign(String sign) {
firePropertyChange("sign", this.sign, this.sign = sign);
}
}
public class City extends MainEntity {
private String name;
private String zipCode;
public City(String zipCode, String name) {
super();
this.zipCode = zipCode;
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
firePropertyChange("name", this.name, this.name = name);
}
public String getZipCode() {
return zipCode;
}
public void setZipCode(String zipCode) {
firePropertyChange("zipCode", this.zipCode, this.zipCode = zipCode);
}
}
public class Person extends MainEntity {
private String name;
private int age;
public Person(String name, int age) {
super();
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
firePropertyChange("name", this.name, this.name = name);
}
public int getAge() {
return age;
}
public void setAge(int age) {
firePropertyChange("age", this.age, this.age = age);
}
}
public class DataComposite<T extends MainEntity> extends
AbstractModelObject {
private T basic;
private List<Car> cars;
private List<Person> persons;
private List<City> cities;
public void setBasic(T basic) {
this.basic = basic;
}
public T getBasic() {
return basic;
}
public void setCars(List<Car> cars) {
firePropertyChange("cars", this.cars, this.cars = cars);
}
public List<Car> getCars() {
if (this.cars == null) {
this.cars = new ArrayList<Car>();
}
return new ArrayList<Car>(this.cars);
}
public void setPersons(List<Person> persons) {
firePropertyChange("persons", this.persons, this.persons = persons);
}
public List<Person> getPersons() {
if (this.persons == null) {
this.persons = new ArrayList<Person>();
}
return new ArrayList<Person>(persons);
}
public void setCities(List<City> cities) {
firePropertyChange("cities", this.cities, this.cities = cities);
}
public List<City> getCities() {
if (this.cities == null) {
this.cities = new ArrayList<City>();
}
return new ArrayList<City>(cities);
}
}
public class Model extends AbstractModelObject {
private List<DataComposite<? extends MainEntity>> result;
public List<DataComposite<? extends MainEntity>> getResult() {
if (result == null) {
result = new ArrayList<DataComposite<? extends MainEntity>>();
}
return new ArrayList<DataComposite<? extends MainEntity>>(result);
}
public void setResult(List<DataComposite<? extends MainEntity>> result) {
firePropertyChange("result", this.result, this.result = result);
}
public Model() {
init();
}
public void init() {
ArrayList<DataComposite<? extends MainEntity>> myList = new ArrayList<DataComposite<? extends MainEntity>>();
DataComposite<City> dci1 = new DataComposite<City>();
dci1.setBasic(getRandomCity());
dci1.setCars(getCarList());
myList.add(dci1);
DataComposite<City> dci2 = new DataComposite<City>();
dci2.setBasic(getRandomCity());
dci2.setPersons(getPersonList());
myList.add(dci2);
DataComposite<Person> dp = new DataComposite<Person>();
dp.setBasic(getRandomPerson());
dp.setCities(getCityList());
dp.setCars(getCarList());
myList.add(dp);
setResult(myList);
}
private Random random = new Random();
private Person[] persons = new Person[] { new Person("Heiko", 32),
new Person("Joachim", 56), new Person("Ellen", 52),
new Person("Uwe", 32), new Person("Albert", 80),
new Person("Irmtraud", 78), new Person("Thomas", 32),
new Person("Karsten", 56), new Person("Nadin", 52), };
private Person getRandomPerson() {
int x = random.nextInt(persons.length);
return persons[x];
}
private List<Person> getPersonList() {
return Arrays.asList(persons);
}
private Car[] cars = new Car[] { new Car("Volvo", "B-B-001"),
new Car("Opel", "Y-B-001"), new Car("VW", "BW-B-601"),
new Car("Audi", "BA-B-001"), new Car("Porsche", "WE-K-001"), };
private Car getRandomCar() {
int x = random.nextInt(cars.length);
return cars[x];
}
private List<Car> getCarList() {
return Arrays.asList(cars);
}
private City[] cities = new City[] { new City("14057", "Berlin"),
new City("06543", "Wippra"), new City("18004", "Leipzig"),
new City("55116", "Mainz"), new City("13123", "Berlin"), };
private City getRandomCity() {
int x = random.nextInt(cities.length);
return cities[x];
}
private List<City> getCityList() {
return Arrays.asList(cities);
}
}
public class ModObservableMapCellLabelProvider extends
ObservableMapCellLabelProvider {
Image compositeImage = createCompositeImage();
Image personImage = createPersonImage();
Image carImage = createCarImage();
Image cityImage = createCityImage();
public ModObservableMapCellLabelProvider(IObservableMap attributeMap) {
super(attributeMap);
}
private Image createCarImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
gc.fillArc(1, 1, 10, 10, 0, 360);
gc.dispose();
return catalogImage;
}
private Image createCityImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
gc.fillArc(1, 1, 10, 10, 0, 360);
gc.dispose();
return catalogImage;
}
private Image createPersonImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_BLUE));
gc.fillPolygon(new int[] { 1, 10, 5, 1, 6, 1, 10, 10, 1, 10 });
gc.dispose();
return catalogImage;
}
private Image createCompositeImage() {
Display display = Display.getCurrent();
Image catalogImage = new Image(display, 12, 12);
GC gc = new GC(catalogImage);
gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
gc.fillPolygon(new int[] { 1, 10, 5, 1, 6, 1, 10, 10, 1, 10 });
gc.dispose();
return catalogImage;
}
@Override
public void update(ViewerCell cell) {
super.update(cell);
if (cell.getElement() instanceof DataComposite) {
cell.setImage(compositeImage);
} else if (cell.getElement() instanceof Person) {
cell.setImage(personImage);
} else if (cell.getElement() instanceof Car) {
cell.setImage(carImage);
} else if (cell.getElement() instanceof City) {
cell.setImage(cityImage);
}
}
}
private void bindUI() {
IListProperty childrenProperty = new MultiListProperty(
new IListProperty[] {
BeanProperties.list("result"),
BeanProperties.list("persons"),
BeanProperties.list("cars"),
BeanProperties.list("cities") });
ObservableListTreeContentProvider contentProvider = new ObservableListTreeContentProvider(
childrenProperty.listFactory(), null);
viewer.setContentProvider(contentProvider);
TreeViewerColumn column = new TreeViewerColumn(viewer, SWT.LEFT);
TreeColumnLayout viewerLayout = new TreeColumnLayout();
viewerLayout.setColumnData(column.getColumn(),
new ColumnWeightData(100));
composite.setLayout(viewerLayout);
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
Button reinitModelButton = new Button(shell, SWT.PUSH);
reinitModelButton.setText("Reinit Model");
reinitModelButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
model.init();
}
});
/*
* Version 1
*/
IValueProperty viewProp = new DelegatingValueProperty() {
IValueProperty dataCompositeProp = BeanProperties.value(DataComposite.class, "basic");
IValueProperty personProp = BeanProperties.value(Person.class,"name");
IValueProperty basicPersonProp=dataCompositeProp.value(personProp);
IValueProperty carProp = BeanProperties.value(Car.class, "marke");
IValueProperty basicCarProp=dataCompositeProp.value(carProp);
IValueProperty cityProp = BeanProperties.value(City.class, "name");
IValueProperty basicCityProp=dataCompositeProp.value(cityProp);
protected IValueProperty doGetDelegate(Object source) {
if (source instanceof DataComposite) {
DataComposite comp = (DataComposite) source;
if (comp.getBasic() instanceof Person) {
return basicPersonProp;
} else if (comp.getBasic() instanceof Car) {
return basicCarProp;
} else if (comp.getBasic() instanceof City) {
return basicCityProp;
}
return null;
} else if (source instanceof Person) {
return personProp;
} else if (source instanceof Car) {
return carProp;
} else if (source instanceof City) {
return cityProp;
}
return null;
}
};
/*
* Version 2
*/
// IValueProperty viewProp = new DelegatingValueProperty(){
// IValueProperty
// dataCompositeProp=BeanProperties.value(DataComposite.class, "basic");
// IValueProperty personProp = BeanProperties.value(Person.class,
// "name");
// IValueProperty carProp = BeanProperties.value(Car.class, "marke");
// IValueProperty cityProp = BeanProperties.value(City.class, "name");
//
//
// protected IValueProperty doGetDelegate(Object source) {
// if (source instanceof DataComposite){
// DataComposite comp=(DataComposite)source;
// if(comp.getBasic() instanceof Person){
// return BeanProperties.value(DataComposite.class,"basic.name");
// }
// else if(comp.getBasic() instanceof Car){
// return BeanProperties.value(DataComposite.class,"basic.marke");
// }
// else if(comp.getBasic() instanceof City){
// return BeanProperties.value(DataComposite.class, "basic.name");
// }
// return null;
// }
// else if(source instanceof Person){
// return personProp;
// }
// else if(source instanceof Car){
// return carProp;
// }
// else if(source instanceof City){
// return cityProp;
// }
//
// return null;
// }
// };
contentProvider.getKnownElements();
IObservableMap details = viewProp.observeDetail(contentProvider
.getKnownElements());
column.setLabelProvider(new ModObservableMapCellLabelProvider(details));
model = new Model();
viewer.setInput(model);
}
}
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