CS476/576

Assignment #2

Due Midnight, Tuesday   Oct 14, 2007

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Use  Curses/Xlib/Motif to write a program with the following descriptions:

NAME

drawfps – draw filled polygon shapes

SYNOPSIS

drawfps

DESCRIPTION

First, the program presents a Curses interface through which the user invokes a Motif interface.

The Curses interface gives the user the chance to see a help menu and then to start the Motif interface.

The Motif interface has a drawing canvas to draw filled polygon shapes using Xlib.

To draw a polygon, the user marks the vertices of the polygon by clicking and drawing points and

connecting the points with lines. When the user clicks back on the first vertex; a filled polygon is drawn.

In addition to drawing on the canvas, the program has two control areas:

Ø Color Control: to select one out the three colors: Red, Green and Blue.

Ø Program Control: has two buttons*:

Quit Button: Exit the program with a chance to confirm or cancel.

Reset Button: Clears the drawing area with a chance to confirm or cancel.

As a sample solution, try running the program under:

/home/cs476/public_html/fall08/assignments/a2/wahab/drawfps

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*The interaction with these two buttons follows a "modal" interface –one that prevents you from doing anything else until you've completed the current task.