page-templates -- Refine page templates

[deyan]

Page templates

• Creating a page template
  • Adding a page as template should create a new template and set the page to follow the template.
  • Changing a template should always be possible (from any child)
  • Page template should contain the following (chosen from the dialog)
    • Simple frames (with their keys)
    • Groups (with sub elements)
    • Chained frames (as simple frames, pointing the resource)
    • Auto chains
      • Frames as simple frames (or chained frames)
      • Chain identifier
• Applying a page template
  • Existing frames are preserved (simple frames)
  • Existing auto chained frames are deleted in case the template contains frame(s) from the same chain (with the same identifier)
• Optional - creating a new page from a template
  • Dragging a page template to the page preview palette should create a new page from this template
• Page template dialog
  • Since simple frames are not affected by applying template, there is no need their sub elements to be listed in the dialog. Only sub-elements from the chains are needed