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= Analysis =

== Overview ==
This task should provide a model for page elements (currently only frames). In this revision only a basic prototype is required.

== Task requirements ==
 * Revise the code for pages and frames and clean it up.
 * Modularize some things in the main.view if necessary.
 * Provide a class diagram(s) for the page elements and their components (styles, bounding rectangles, etc.).
 * Consider future design ideas and add them to the diagram - these include stickies and connectors and will be implemented in the next revision.
 * Review the existing unit tests and fix them if needed.

== Task result ==
The result of this task should be:
 * source code
 * class diagram(s)
 * working unit tests

== Implementation idea ==
 * Review the existing source code.
 * Create the class diagram(s).
 * Refactor and clean up according to the diagram.
 * Run unit tests and fix problems if any.

== Related ==
[wiki:BASE_BOOK_COMMONS_R0]

== How to demo ==
 * Show the class diagrams and explain them.
 * Show the source code related to page elements.
 * Run unit tests to demonstrate the model.

= Design =
 * Revising
    * remove org.sophie2.base.model.book.Frame.getPageNumber() - it is not used anywhere and could be helpful only if it's used a lot.
    * remove org.sophie2.base.model.book.Frame.borderColor() - it is in org.sophie2.base.model.book.Frame.border()

    * move org.sophie2.base.model.book.Frame.contentLocation() and org.sophie2.base.model.book.Frame.contentSize() into org.sophie2.base.model.book.Frame.content()
    * if org.sophie2.base.model.book.Frame.bounds() is about content, alse move it into org.sophie2.base.model.book.Frame.content()
    * move org.sophie2.base.model.book.Frame.borderInsets() into org.sophie2.base.model.book.Frame.border()

    * org.sophie2.base.model.book.Frame.getResource() can be renamed or documented better to make it clear that it is only a "shortcut" to something in the content.

 * Future design ideas
    * stickies
      Stickies will either extend frames with the new ability to be glued to a frame or be just regular frames with a special type of content.
         - In both ways a page will have a list with frames that are not stickies and a list with stickies.
         - In both ways there should be a property that points to the frame that the sticky is glued to. Since a frame position is currently calculated from content position, it is reasonable to stick the content to the frame and recalculate content position when the frame is moved.
    * connectors
      Only frames that have specific types of content connect to other frames. That's why a connector should be a property of a content that points to another frame (or content). Note that the sticky is again just property pointing to a frame (or content - the relation is 1 to 1, so it is up to the programmer) in a specific type of content, so designing stickies can be part of designing connectors.

= Implementation =
^(Implementation results should be described and linked here (from the wiki or the repository))^

= Testing =

= Comments =
^(Write comments for this or later revisions here.)