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Re: Re: [ve-dev] How to add new layout mangers to ve
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Hi Jeffrey,
Thanks that was of great help -:)
My plugin without layout managers is running fine on VE 1.0
M1,but as soon as I add override info for layouts in
beaninfo.registration and run my plugin, my pallette loads
without the swing and custom components.
Also the following error messages are shown :
Error parsing plugin manifest file at
c:\layout\eclipse\plugins\com.myobj.custom
Problems occurred when invoking code from plug-in:
"org.eclipse.core.runtime"
Problems occurred when invoking code from plug-in:
"org.eclipse.core.runtime"
and so on.
Following is my plugin.xml file :
<?xml version="1.0" ?>
- <plugin name="Custom" id="com.myobj.custom" version="1.0.0">
- <requires>
<import plugin="org.eclipse.jem.beaninfo" />
<import plugin="org.eclipse.ve.java.core" />
<import plugin="org.eclipse.jdt.ui" />
<import plugin="org.eclipse.jdt.core" />
<import plugin="org.eclipse.jdt.launching" />
</requires>
- <extension point="org.eclipse.jem.beaninfo.registrations">
- <registration container="MYOBJ_CONTAINER"
plugin="com.myobj.custom">
- <beaninfo kind="plugin" path="bin/myobjectbeaninfo.jar">
<searchpath package="com.myobj.custom.beaninfo" />
</beaninfo>
</registration>
- <registration
container="org.eclipse.jdt.launching.JRE_CONTAINER">
<override package="com.myobj.custom.layout"
path="overrides/com/myobj/custom/layout"></override>
</registration>
</extension>
- <extension point="org.eclipse.jdt.ui.classpathContainerPage">
<classpathContainerPage id="MYOBJ_CONTAINER" name="Custom"
class="org.eclipse.ve.internal.java.wizard.RegisteredClasspathContainerWizardPage"
/>
</extension>
- <extension
point="org.eclipse.jdt.core.classpathContainerInitializer">
<classpathContainerInitializer
class="org.eclipse.ve.internal.java.core.RegisteredClasspathContainerInitializer"
id="MYOBJ_CONTAINER" />
</extension>
- <extension point="org.eclipse.ve.java.core.contributors">
<palette container="MYOBJ_CONTAINER"
categories="myobjpalette.xmi" plugin="com.myobj.custom" />
</extension>
- <extension point="org.eclipse.ve.java.core.registrations">
- <registration container="MYOBJ_CONTAINER"
description="MyCustomToolBar">
<library runtime="bin/myobject.jar" src="src/myobject_src.zip"
prefix="src" />
</registration>
</extension>
</plugin>
Kindly help me in sorting out the error.
Thanks & Regards
Tanul
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---- On Thu, 27 May 2004, Jeffrey Myers (myersj@xxxxxxxxxx)
wrote:
> Hi Tanul,
>
> The ability to add custom layout managers is a new feature in
VE 1.0
> (should work in M1)... so it hasn't been tested much yet.
Here's some
> instructions, if they don't work, please let us know.
> Note: right now we only support adding layout managers with no
agument
> constructors. Layout managers with constructors requiring
arguments, such
> as BoxLayout are still handled as special cases requiring more
code.
>
> 1)
> Assuming you want to add a Swing/AWT layout manager, in your
plugin,
> create a file overrides/java/awt/LayoutManager.override (for
SWT this
> would be overrides/org/eclipse/swt/widgets/Layout.override)
>
> 2)
> Look at the existing LayoutManager.override in the same place
in the
> org.eclipse.ve.jfc plugin as a guide.
> Copy the top of that override's file, the xmi tag declaration
into your
> file:
>
> <?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">
>
> Now add an eAnnotation tag to your override:
> <event:AddMany featureName="eAnnotations">
>
> 3)
> For each layout you want to add, put in this block of xmi:
> <addedEObjects xsi:type="ecore:EAnnotation"
> source="org.eclipse.ve.LayoutInfo">
> <details
> key="org.eclipse.ve.internal.jfc.core.layoutManagerClass"
> value="java.awt.BorderLayout"/>
> <details
>
key="org.eclipse.ve.internal.jfc.core.layoutManagerDisplayName"
> value="BorderLayout"/>
> </addedEObjects>
>
> Replace the "java.awt.BorderLayout" value with your own custom
layout
> class (fully qualified class name).
> Replace the "BorderLayout" value with the display name you
wish to see in
> the property sheet's cell editor.
>
> 4)
> Add the closing tags to the end of your file:
> </event:AddMany>
> </xmi:XMI>
>
> Save your override file.
>
> 5)
> Next we need to register with beaninfo to notify it that
you've written an
> override
> Open the plugin.xml for your plugin.
> Add the following extension within your plugin.xml:
> <extension
> point="org.eclipse.jem.beaninfo.registrations">
> <registration
>
container="org.eclipse.jdt.launching.JRE_CONTAINER">
> <override
> package="java.awt"
> path="overrides/java/awt">
> </override>
> </registration>
> </extension>
>
> Save your plugin.xml.
> Launching the VE with your plugin active should now show your
custom
> layout on the layout property editor for Swing/AWT. Selecting
it should
> drop an instance of that class with a no argument constructor.
>
> 6)
> To provide visual feedback and the ability to edit the layout
graphically
> requires quite a lot more work.
>
> First, create an override for your custom layout class. If
your class is
> called org.foo.layouts.MyCustomLayout, you'll need to create
the file
> overrides/org/foo/layouts/MyCustomLayout.override in your
plugin.
>
> In this file add the following xmi:
> <?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="org.eclipse.ve.jfc/org.eclipse.ve.internal.jfc.core.BorderLayoutPolicyFactory"/>
> </addedEObjects>
> <addedEObjects xsi:type="codeGenHelpers:CodeGenHelperClass"
> source="codegen.CodeGenHelperClass"
> modelled="true"/>
> </event:AddMany>
>
> Change the value of "
>
org.eclipse.ve.jfc/org.eclipse.ve.internal.jfc.core.BorderLayoutPolicyFactory
> " to
> "my.plugin/my.plugin.MyCustomLayoutPolicyFactory" (replacing
with real
> plugin/layout names of course)
>
> 7)
> Now create the MyCustomLayoutPolicyFactory class, extending
the
> org.eclipse.ve.internal.java.visual.ILayoutPolicyFactory
interface.
>
> 8)
> Back in your plugin.xml, add an override tag pointing to your
custom
> layout's package.
> Look for where you entered:
> <override
> package="java.awt"
> path="overrides/java/awt">
> </override>
> And below that, add:
> <override
> package="org.foo.layouts"
> path="overrides/org/foo/layouts">
> </override>
> (same package and path used in step 6)
>
> 9)
> Now to actually implement your desired graphical behavior,
you'll need to
> implement the methods in MyCustomLayoutPolicyFactory. Your
best bet for
> getting up to speed on how to accomplish this is reading
through the
> existing layout edit policies included with the VE in
Swing/AWT and SWT.
> The class
org.eclipse.ve.internal.jfc.core.FlowLayoutPolicyFactory would
> be a good place to start looking.
>
>
> If you have questions, please ask here on the dev list or on
the VE
> newsgroup. If you have feedback or problems with these
instructions
> please let me know... once we get the bugs shaken out we'll
probably post
> these instructions as an article in our developer
documentation section.
>
> Good luck,
>
> Jeff Myers
> ----------------
> Eclipse Visual Editor Development
> 919-254-9130 - T/L 444, HYSA/501/F121
> IBM SWG at RTP, 3039 Cornwallis Rd, RTP, NC 27709
> Lotus Notes: Jeffrey Myers/Durham/IBM Internet:
myersj@xxxxxxxxxx
>
>
>
>
> tanul sangal <tanulsangal@xxxxxxxxxx>
> Sent by: ve-dev-admin@xxxxxxxxxxx
> 05/27/2004 03:02 AM
> Please respond to ve-dev
>
> To: ve-dev@xxxxxxxxxxx
> cc:
> Subject: [ve-dev] How to add new layout mangers
to ve
>
>
> Hi,
>
> I have a plugin for ve which is adding some of my custom
> components to the ve palette.
> Now I want to add some custom layout managers so that they can
> behave within the ve in the same way as existing layout
> managers.
>
> Kindly provide me with some input on how can this be achieved.
>
> Best Regards
> Tanul
>
>
>
