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= Analysis =

== Overview ==
Text performance is still not good enough. The purpose of this task is to improve it and make Sophie usable with large text (see [wiki:TEXT_PERFORMANCE_R0#Comments]). At this revision, testing and profiling should indicate bottlenecks that need to be fixed.

== Task requirements ==
 * Fix known issues after the first revision of the task:
  * Mouse clicking leads to a lot of processing currently.
  * The text that is drawn is not calculated after a synchronization with server, a saved book and after performing "undo/redo".
 * Determine bottlenecks that slow down text performance (describe them in design):
  * Manual testing should help see which regular user operations on text take a lot of time to perform.
  * Automatic testing using performance tests should pin out the most time-consuming pieces of code.
 * Suggest solutions or ways of improvement (describe them in design)
  * Provide estimate for how much time is needed for them to be done.
 * Implement feasible solutions based on the estimates given and the available time left.

== Task result ==
 * The [wiki:TEXT_PERFORMANCE_R1#Design Design] section of this wiki page
 * Source code

== Implementation idea ==
Look at the tests and results from the first revision of this task. The number of characters used in the test might be increased for easier interpretation of results.

== Related ==
TEXT_PERFORMANCE_R0

== How to demo ==
 * Show the better performance by pasting a large text and editing it.
 * Run the performance tests written and describe the results.

= Design =
^Describe your design here.

= Implementation =
^Describe and link the implementation results here (from the wiki or the repository).

= Testing =
^Place the testing results here.

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