PICASSA

Patrick LuJoshua LundVijay Ram

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ROLES

GUI Making the GUI, communicating

with user Pat

GUI <-> Model Relations Keep the greater project design in

mind at all times and keep it working and the design logical

Vijay Model

Processing expression . We started off with Josh’s Arithmetica and was therefore a fitting role for him

Josh

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ARITHMETICA JUSTIFICATION

Use Josh’s Arithmetica code Cleaner Parser class Greater ease to extend Treats parenthesis, comma better

Creates “Grouper” objects

Take parts from Pat and Vijay’s code Operator functionality / hierarchy

Josh’s code design had more strengths than Pat and Vijay’s Therefore, we used it (it = Josh’s Arithmetica code)

PICASSA DESIGN

Arithmetica is the basis for the model Read function input Parse input/ create expression object

Tokens of Operator, Operand, Grouper Evaluate Expression at each pixel

Action performed by View Evaluate method of expression returns RGB Color

Easy to extend (see below) Add additional functions Functions are basis for all picture renderings

PICASSA DESIGN, CONT.

Certain input methods will not be accepted to simplify coding implementation Function separated by Return or newline

characters Shown in Demo

Grouper is classified separately from Operator

Justified because Groupers are different from Operators

Makes error-checking more tedious/ difficult

USER INTERFACE

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USER INTERFACE

File Menu Open Save

Buttons Random Evaluate Breed

Text Fields Current Expression Enter Expression Enter Expression

USER INTERFACE, CONT.

File Menu Save

Save Current image to file Load

Load image from file, display image expression

Buttons Random

Display a random expression in the View Evaluate

Evaluate a single expression inputted Breed

Merge two expressions inputted in the left/right boxes

USER INTERFACE, CONT. 2

Current progress Shown during demonstration

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DEMONSTRATION!

Watch!!!!

PRIORITIES FOR THE WEEK

Finish the project? Implement error checking Clean up Model-View Interaction Finish GUI Implement extensions

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EXTENSIONS

Allow users to view multiple images at once Separate windows, tabs, or a grid of

thumbnails) Allow users to "debug" expressions

Use mouse to display point and evaluated values

Allow users to save a history of old expressions

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