Widget Identifier Refactor

The widget identification code was getting to be a bit messy... and was in a place that it really didn't fit.  All of that code has been refactored into a seperate class (and subclasses).  The code is much cleaner now.  Ideally, widget identification would be simple if the set_name() method was called on each and every widget --- but that's a bit much to expect.  

That aside, sugarbot can now identify every individual widget in Calculate.activity.  Unfortunately, there are multiple ways of naming some of the widgets.  For example, Calculate.activity's toolbars.py is responsible for drawing all of the toolbar widgets.  However, some of these have (potentially) multiple names.  In the below example, there are five identifiers that could potentially be used (the five strings used).  Currently, the first one is used, but only because I have not found a way to get at the second one.  It is probably better that the second one is not used, as internationalized text could cause issues with widget identification (the "_()" operator is used in lieu of gettext()).

toolbars.py excerpt:

        self.insert(IconToolButton('algebra-square', _('Square'),

            lambda x: calc.button_pressed(calc.TYPE_OP_POST, '^2'),

            lambda x: calc.button_pressed(calc.TYPE_TEXT, 'help(square)'),

            alt_html='x²'), -1)

Log excerpt showing identified widgets:

Tracking widget id 146431428 by identifier sugarbot Activity

Tracking widget id 146431748 by identifier sugar+graphics+toolcombobox+ToolComboBox

Tracking widget id 146431908 by identifier Keep

Tracking widget id 146474524 by identifier Stop

Tracking widget id 146475644 by identifier edit-copy

Tracking widget id 146476964 by identifier edit-paste

Tracking widget id 146482316 by identifier edit-cut

Tracking widget id 146483516 by identifier x2

Tracking widget id 146483636 by identifier √x

Tracking widget id 146484876 by identifier x-1

Tracking widget id 146484916 by identifier ex

Tracking widget id 147261556 by identifier xy

Tracking widget id 147262876 by identifier algebra-ln

Tracking widget id 147262916 by identifier algebra-fac

Tracking widget id 147272364 by identifier trigonometry-sin

Tracking widget id 147273604 by identifier trigonometry-cos

Tracking widget id 147274964 by identifier trigonometry-tan

Tracking widget id 147285612 by identifier trigonometry-asin

Tracking widget id 147286892 by identifier trigonometry-acos

Tracking widget id 147286852 by identifier trigonometry-atan

Tracking widget id 147297620 by identifier trigonometry-sinh

Tracking widget id 147298900 by identifier trigonometry-cosh

Tracking widget id 147300220 by identifier trigonometry-tanh

Tracking widget id 147300180 by identifier boolean-and

Tracking widget id 147310948 by identifier boolean-or

Tracking widget id 147312228 by identifier boolean-eq

Tracking widget id 147312268 by identifier boolean-neq

Tracking widget id 147322876 by identifier π

Tracking widget id 147324116 by identifier constants-e

Tracking widget id 147330788 by identifier Deg

Tracking widget id 147337740 by identifier enter

Tracking widget id 147337660 by identifier )

Tracking widget id 147337580 by identifier /

Tracking widget id 147337500 by identifier *

Tracking widget id 147337420 by identifier (

Tracking widget id 147332148 by identifier -

Tracking widget id 147332228 by identifier +

Tracking widget id 147333028 by identifier clear

Tracking widget id 147332948 by identifier .

Tracking widget id 147332868 by identifier 0

Tracking widget id 147332788 by identifier 3

Tracking widget id 147332708 by identifier 2

Tracking widget id 147332628 by identifier 1

Tracking widget id 147332548 by identifier 6

Tracking widget id 147332468 by identifier 5

Tracking widget id 147332388 by identifier 4

Tracking widget id 147332308 by identifier 9

Tracking widget id 147331988 by identifier 8

Tracking widget id 147332188 by identifier 7

Tracking widget id 147331828 by identifier calcMainEntry

Tracking widget id 147332028 by identifier Label

Tracking widget id 147337820 by identifier All equations

Tracking widget id 147337900 by identifier Show history

Tracking widget id 139099748 by identifier SugarActivity