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RE: [ve-dev] Customised Swing layout manager
|
Hi
Joe,
I was able to get to the point where the Eclipse ve
identifies and initializes the LayoutPolicyFactory. On
choosing MyLayout from the Drop Down list in property palette the
Layoutpolicyfactory is initialized to UnKnownLayout2PolicyFactory . I am trying
to analyze why my LayoutPolicyFactory is not being initialized. Will get back to
you soon with the results.
Thank
You
Rashmi Ramachandra.
-----Original Message-----
From: ve-dev-bounces@xxxxxxxxxxx
[mailto:ve-dev-bounces@xxxxxxxxxxx]On Behalf Of Rashmi H.
Ramachandra
Sent: Monday, September 12, 2005 2:41 PM
To:
Discussions people developing code for the Visual Editor
project
Subject: NL:Re: [ve-dev] Customised Swing layout
manager
Hi Joe,
Selection of my LayoutManager from the drop down list does not log any
messages to the Error log view. MyLayout
and MyLayoutPolicyFactory are in
separate packages. I have followed "Extending The
Visual Editor" tutorial from the link http://www.eclipse.org/articles/index.html, while creating the project. According to the
article I have created a classpath container. The class path container is pointing to
the jar, which contains my layout
manager and my custom widgets.Custom widgets part has a customized container
(JPanel) that uses MyLayout and a custom component(JTextField) . I am
able to use the custom widgets and MyLayout with out any compilation errors.
The custom component is also visible in the correct position when I add it to
the container by manually providing the constraints like
container.add(component, myLayoutxconstraints(x,y,height,width)).But I am not
able to resize and move the component on the visual editor. For this I have
tried to implement the LayoutPolicyFactory and other classes related to my
requirement.
I am not adding the override
folder and the package related to the LayoutPolicyFactory to the jar
pointed by class path container. I am testing my project by
running it as a Eclipse Application from the run menu(invoking second
workbench).The eclipse environment should pick
up the plugin class , overrides and the classes related to LayoutPolicyFactory
, when I deploy my project as a Eclipse application to a
workbench.
In this context do I need to write proxy.jars
document pointing to the paths? As
all the class object can be found in the /bin folder of the project.
I have deployed the project to workbench in debug
mode. And opened the Visual Editor on a test.java class that's using
Mylayout . How do I debug into
LayoutPolicyFactory and ContainerGraphicalEditPart from the debug mode ?
Thank You and Regards,
Rashmi Ramachandra
Hi
Rashmi,
Is there anything being
written to the ErrorLog when you select your layout manager from the drop
down list in the property sheet ? You can see this using the Show
View>Error Log.
You have
myPackage as being the package with the MyLayout and also with the
MyLayoutPolicyFactory. The VE has two sides to it - one is the Eclipse
IDE that runs the viewer and editor code into which the
MyLayoutPolicyFactory should go. The other is the VM that the VE uses
to create its JavaBeans and this is the one MyLayout should be in. The
same packages are not shared between the two.
The user experience for your user should be that the
MyLayout.class file is in the build path of their Java project. By
default it won't be (because it's not part of the JFC classes) so your user
must do something to add it. The way the VE tends to do this is with a
classpath container, and the tutorial on
http://www.eclipse.org/articles/Article-VE-Custom-Widget/customwidget.html
shows how to create a container.
In your plugin you should keep separate the code that runs in the IDE
and is part of your plugin (which includes MyLayoutPolicyFactory) and the
code that runs in the VE's target VM. If you look at something like
the org.eclipse.ve.swt plugin you will see separate source folders - one
called ve_swt and one called vm_swt. Look also at the file proxy.jars
that redirects the VE in develpment mode so where it looks for a .jar file
on the target VM it instead looks inside the /bin folder in the
workbench.
To see whether your
code is working or not a good place to start would be to maually change a
JPanel to use your layout manager (i.e. using the Java source code) and make
sure this compiles. Then open the VE in debug mode and debug into the
ContainerGraphicalEditPart and the method createLayoutEditPolicy() which
will go down the path where it looks for the correct policy factory to use
for the layout manager.
Best
regards,
Joe Winchester
Please respond to Discussions
people developing code for the Visual Editor project
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code for the Visual Editor project" <ve-dev@xxxxxxxxxxx>
cc:
Subject:
Re: [ve-dev]
Customised Swing layout manager
Hi All,
On creating a custom LayoutManager.override, I have been able to get the new LayoutManager display name shown in
list for layout property in the property editor . The code I used in
the .override file is as below.
<?xml version="1.0"
encoding="UTF-8"?>
<xmi:XMI xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:org.eclipse.ve.internal.jcm="http:///org/eclipse/ve/internal/jcm.ecore"
xmlns:org.eclipse.ve.internal.cde.decorators="http:///org/eclipse/ve/internal/cde/decorators.ecore"
xmlns:org.eclipse.jem.java="java.xmi" xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
xmlns:event="event.xmi">
<event:Add
featureName="eAnnotations">
<addedEObjects
xsi:type="ecore:EAnnotation"
source="org.eclipse.ve.LayoutInfo">
<details
key="org.eclipse.ve.internal.jfc.core.layoutManagerClass"
value="mypackage.MyLayout"/>
<details
key="org.eclipse.ve.internal.jfc.core.layoutManagerDisplayName"
value="MyLayout"/>
</addedEObjects>
</event:Add>
</xmi:XMI>
How do
We know that the class MyLayout has been initialized and recognised the
LayoutManager class by VE. I have tried adding breakpoints to my
LayoutManager class and running VE in debug mode. I have not been able to
trace the class as the breakpoints are not being recognised.
MyLayout.override file is
as below
<?xml version="1.0"
encoding="UTF-8"?>
<event:AddMany xmi:version="2.0"
xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:org.eclipse.ve.internal.jcm="http:///org/eclipse/ve/internal/jcm.ecore" xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"
xmlns:codeGenHelpers="platform:/plugin/org.eclipse.ve.java.core/overrides/codegenHelpers.ecore"
xmlns:event="event.xmi"
featureName="eAnnotations">
<addedEObjects
xsi:type="org.eclipse.ve.internal.jcm:BeanDecorator">
<keyedValues xsi:type="ecore:EStringToStringMapEntry"
key="org.eclipse.ve.internal.jfc.core.layoutpolicyfactoryclassnamekey"
value="My_Plugin/mypackage.MyLayoutPolicyFactory"/>
</addedEObjects>
<addedEObjects
xsi:type="codeGenHelpers:CodeGenHelperClass"
source="codegen.CodeGenHelperClass"
modelled="true"/>
</event:AddMany>
Breakpoint added
to MyLayoutPolicyFactory are
not being recognized while testing the plugin.Is there anything wrong in the
above declaration?
How do I
run eclipse 3.1 in debug mode to track the process of execution of the
classes that are referenced in the .override files?
Thank You &
Best Regards,
Rashmi
Ramachandra
-----Original Message-----
From: ve-dev-bounces@xxxxxxxxxxx
[mailto:ve-dev-bounces@xxxxxxxxxxx]On Behalf Of Peter
Walker
Sent: Friday, August 26, 2005 9:00 PM
To:
Discussions people developing code for the Visual Editor
project
Subject: NL:Re: [ve-dev] Customised Swing layout
manager
Rashmi,
To clarify about what
override file to create, for SWT layouts use Layout.override, for AWT/Swing
layouts, use LayoutManager.override.
Regards...
Peter Walker
Rich
Kulp/Raleigh/IBM@IBMUS Sent by:
ve-dev-bounces@xxxxxxxxxxx
08/26/2005 09:50 AM
Please respond
to Discussions people developing code for the Visual Editor
project |
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To
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project <ve-dev@xxxxxxxxxxx>
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Subject
| Re: [ve-dev]
Customised Swing layout
manager |
|
Hi,
A little typo, to get
your layout manager to show in the property sheet you create an override for
Layout.override, not Container.override. You just create a new override, put
the extension point in to pick it up as an override and add another
annotation. See the Layout.override that already exists to see how to do
that.
Rich
Joe Winchester
<WINCHEST@xxxxxxxxxx> Sent by:
ve-dev-bounces@xxxxxxxxxxx
08/26/2005 08:24 AM
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to Discussions people developing code for the Visual Editor
project |
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cc
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Subject
| Re: [ve-dev]
Customised Swing layout
manager |
|
Hi
Rashmi,
The
best way is to look at how this is done for a layout manager like, say,
BorderLayout. There is a file BorderLayout.override and this
defines the decorator for a factory, and the factory lets you control things
like GEF edit policies (that you will need to build). Look at the
existing factories and you should get a feel for how to do this.
To get your
layout manager to appear in the drop down list of available layout managers
in the property sheet look at Container.override. You could change the
base file to add your own which would work OK for you, but better would be
to have your own Container.override in your own plugin and defined your own
layout manager.
If you need help understanding how to create
a plugin and get started with .override try the Visual Editor tutorial on
eclipse corner and the VE homepage.
Best regards and please keep us informed of
how you get on,
Joe Winchester
Please respond to Discussions
people developing code for the Visual Editor project
<ve-dev@xxxxxxxxxxx>
Sent by:
ve-dev-bounces@xxxxxxxxxxx
To:
<ve-dev@xxxxxxxxxxx>
cc:
Subject: [ve-dev] Customised Swing layout manager
Hi all,
I have implemented a
swing layout manager along with the constraints class. I loaded it to the
eclipse enviroment as a bundle in the plugin. Now when i use this layout in
a visual class I am able to arrange the components by changing the
constraints values from the source view. But i am unable to move the
component on the design view(changing the constraints from the properties
and design view) .Can you help me out to solve my layout poblem. Do i need
to implement some a layout assistant that will interface with my layout
manager and the visualeditor.
Best Regards
-Rashmi
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