| How to open a custom dialog for a property in a Custom Property Tab? [message #150923] |
Mon, 17 September 2007 02:07  |
Eclipse User |
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Originally posted by: michael.dev.NOSPAM.gmx.de
Hello All,
GMF 2 uses a Custom Property Tab named Core by default that uses a
AdvancedPropertySection and a DecoratingLabelProvider. I could not
figure out how to extend this mechanism to allow a property to open a
custom dialog. All samples I found refer to a different architecture.
Can anyone please show me how to make it possible for a property to open
a custom dialog. It would be great if you can provide a small code
sample but any hint could help. I do not like to use the Standard
Property Tab "Advanced" because it shows unwanted additional properties.
Thanks in advance.
Michael
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| Re: How to open a custom dialog for a property in a Custom Property Tab? [message #171873 is a reply to message #170864] |
Fri, 08 February 2008 07:05  |
| Eclipse User |
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Originally posted by: marsha.rohrer.swisscom.com
Hi,
You have to write a customized PropertySource which returns your
customized PropertyDescriptror:
public class CustomizedPropertySource extends PropertySource {
public CustomizedPropertySource(Object object,
IItemPropertySource itemPropertySource) {
super(object, itemPropertySource);
}
protected IPropertyDescriptor createPropertyDescriptor(
IItemPropertyDescriptor itemPropertyDescriptor) {
return new CustomizedPropertyDescriptor(object,
itemPropertyDescriptor);
}
}
In your property descriptor you check if the needed property is treated
and open your dialog:
public class CustomizedPropertyDescriptor extends PropertyDescriptor {
public CustomizedPropertyDescriptor(Object object,
IItemPropertyDescriptor itemPropertyDescriptor) {
super(object, itemPropertyDescriptor);
}
public CellEditor createPropertyEditor(Composite composite) {
CellEditor result = super.createPropertyEditor(composite);
if (result == null)
return result;
EClassifier eType = ((EStructuralFeature) itemPropertyDescriptor
.getFeature(object)).getEType();
if (object instanceof Activity) {
if (eType instanceof EDataType) {
EDataType eDataType = (EDataType) eType;
if (eDataType.getInstanceClass() == String.class) {
result = new ExtendedDialogCellEditor(composite,
getEditLabelProvider()) {
protected Object openDialogBox(Control cellEditorWindow) {
//create an new activity dialog instance
ActivitySelectionDialog dialog = new ActivitySelectionDialog(
cellEditorWindow.getShell(),
cellEditorWindow.getParent());
dialog.create();
if (dialog.open() == Window.OK) {
Object dialogResult = dialog.getResult()[0];
if (dialogResult instanceof ActivityFunctionWrapper) {
ActivityFunctionWrapper wrap = (ActivityFunctionWrapper)
dialogResult;
String res = wrap.getActivity()
.getActivityName()
+ ":"
+ wrap.getFunction()
.getFunctionName();
return res;
}
return null;
}
return null;
}
};
}
}
}
if (object instanceof Flow) {
if (eType instanceof EDataType) {
EDataType eDataType = (EDataType) eType;
if (eDataType.getInstanceClass() == String.class) {
result = new ExtendedDialogCellEditor(composite,
getEditLabelProvider()) {
protected Object openDialogBox(Control cellEditorWindow) {
//create a flow dialog instance
FlowSelectionDialog dialog = new FlowSelectionDialog(
cellEditorWindow.getShell());
dialog.create();
if (dialog.open() == Window.OK) {
Object dialogResult = dialog.getResult()[0];
if (dialogResult instanceof FlowReference) {
FlowReference flow = (FlowReference) dialogResult;
String res = flow.getFlowName() + ":"
+ flow.getVersion();
return res;
}
return null;
}
return null;
}
};
}
}
}
return result;
}
}
In your generated project you can find XXXPropertySection.java which
actually returns a PropertySource. Change that code to return your custom
PropertySource and then the dialog should open.
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