[platform-ui-dev] New perspective layout support for views

[Simon_Arsenault@xxxxxxx]

In integration build 2002-04-23, there will be new support for layout views
in a perspective via XML.

1) adding view placeholder
Using the extension point org.eclipse.ui.perspectiveExtensions, a client
could add views to an existing perspective, but these were made visible by
default. Now, there is a visible attribute to control this. If false, only
a placeholder is added and when the view is opened by the user later on, it
will open at the specified placeholder location, not as a fast view.

2) initial fast view width
In the extension point org.eclipse.ui.views, a new attribute called
fastViewWidthRatio was added. When the view is opened the first time as a
fast view, this value will be used is specfied. Views like Synchronize from
the team plug-in are not useful using the default width ratio assigned to
fast views. Now, a more suitable value can be provided.

3) adding view as fast view
Using the extension point org.eclipse.ui.perspectiveExtensions, a client
can add a view as a fast view and also specify the default width ratio to
use when opening it.

Simon :-)