= Book Window =
Book window is the window where the books "live". Book windows are windows into the main application window. Each book window has it's own tab in the [wiki:OPENED_BOOKS_TABBAR Opened Books Tabbar].
 * The book window defines several extension points. They are:
  * [source:trunk/sophie2-platform/modules/org.sophie2.messy/src/main/java/org/sophie2/messy/view/book/BookPanel.java BookPanel] - holds the elements that control the view of the book
  * !BookPanelElement - an element controlling single aspect of the view
  * !PageArea - displays single a page of a book

 * Base view of !BookWindow:

[[Image(source:/trunk/sophie2-platform/doc/spec-diagrams/BookWindow.png, 60%)]]
 * UML diagram for Book window which is represented by [source:/trunk/sophie2-platform/modules/org.sophie2.messy/src/main/java/org/sophie2/messy/view/book/BookView.java BookView] class in the project source code:
[[Image(source:/trunk/sophie2-platform/doc/uml-design-diagrams/BookView.png, 50%)]]
 * [source:/trunk/sophie2-platform/modules/org.sophie2.messy/src/main/java/org/sophie2/messy/view/book/BookView.java BookView implementation]

 * Book window behavior.

    * Each !BookWindow is responsible for displaying a single book.
    * At the time of creation of a window it is bound to a book.
    * It is then responsible for displaying the current page of the book.
    * This is done through the extension connected to the !PageArea extension point (if such is present).