Submission:
along with the usual paper submission at the beginning of the class,
also send an email
to
cs326@cse.unr.edu
containing:
- subject:
HW 8
- message
body:
your name
- attachment:
the electronic version of your code (preferably just one file with
all classes)
-
(100
pts) Write a Java application that implements a color sampler, with
the following functionality:
•
The
graphical user interface is illustrated by the following picture:
- Each
color is described by its name and its red, green and blue
components.
- Colors
are read from a file, with a format illustrated by the following
example:
-
Red
255
0
0
Green
0
255
0
Blue
0
0
255
Yellow
255
255
0
Cyan
0
255
255
Magenta
255
0
255
-
Orange
255
100
0
Pink
255
20
145
Grey
125
125
125
Black
0
0
0
White
255
255
255
-
For
the currently selected color, the three text fields show its R, G, B
values, while the top component (the “color sample”) is painted
with that color.
- The
currently selected color can be modified by using the + and –
buttons (preferably in increments of 5). Every time such a change
occurs, the appropriate text field and the color sample must also
change accordingly. In addition, a "*"
must be appended to the window title, to show that the current color
has been modified, but not saved. The following picture illustrates
the application window during such changes:
-
Pressing
the Save button causes the modified values for the current color to
be retained. The "*"
disappears
from the window title.
-
Pressing
the Reset button causes the original values of the current color (or
the ones last saved) to be restored. The text fields and the color
sample must change accordingly. The "*"
also
disappears from the window title.
- If
another color is selected from the list, any unsaved changes to the
current color are lost.
- The
colors (possibly modified and saved) are written back to the same
file upon program termination.
