Summary
Refactor preview action related codes on GUI
Bugzilla Bug (s) Resolved
Description：
Engine has supported to obtain extended output formats contributed by emitters,
so preview action and menus on GUI don't need to hard code any emitter's
format. Preview menus have been modified to support output format extension in
fixing bug 146517.
This refactor has done three parts
1.Remove PreviewAction.java;
2.Move the preview method locats in PreviewAction.java to
PreviewToolbarMenuAction.java and PreviewCascadingMenuGroup.java respectively.
3.Enable the preview toolbar menu and preview cascading menu group if report
template is opened on editor.
NOTE!：
1.In previous
PreviewAction.java, preview in PDF needs to check the
"com.lowagie.itext" is included in BIRT firstly. Now we think GUI
doesn't need to do any check for emitters. Towards this case, PDF emitter
should be responsible to response if required resources is missed.
2.Some hard coded behaviors still remain because the icon for preview menu
needs to be appointed according to format, towards this issue, a bug is
reported to engine, suggest to define a attribute for icon on emitter extending
point. And if this suggestion is adopted, refactor is likely required once
more.
Tests Description Manual test and code review.
Notes to Build Team
Notes to Developers
Please take this refactor into account when fixing bug 159063
Notes to QA
Notes to Documentation
Files Added
Files Edited
/org.eclipse.birt.report.designer.ui.preview/src/org/eclipse/birt/report/designer/ui/actions/PreviewCascadingMenuGroup.java
/org.eclipse.birt.report.designer.ui.preview/src/org/eclipse/birt/report/designer/ui/actions/PreviewToolbarMenuAction.java
