It is a great idea, works good too.
Just one thing: If you type:
30-1
Then you type first 30: it displays 30
Then you typ -: it displays 0
Better if it still displays 30, maybe the "30" could "flash" once or something ;P

I`m fixed your bug and found new one :). I don't know Python so I can not fix it, but it should be very easy.

How to reproduce:
1. start this theme
2. press '1' (displaied 1)
3. press 'MR' (displaied 1, should be 0)

Patch:
diff -ru Dashboard_Calculator_orig/db_calculator.py Dashboard_Calculator/db_calculator.py
--- Dashboard_Calculator_orig/db_calculator.py 2002-01-02 11:22:43 +0400
+++ Dashboard_Calculator/db_calculator.py 2005-01-19 23:13:28 +0400
@@ -16,6 +16,7 @@
total = 0
hasfraction = False
isresult = False
+newnumber = False

textlabel = 0

@@ -154,7 +155,7 @@
global dbtnNums
global dbtnOps
global dbtnMemOps
- global activeOp, memory, display, total, hasfraction, isresult
+ global activeOp, memory, display, total, hasfraction, isresult, newnumber
global textlabel

uplist = []
@@ -167,8 +168,13 @@
if (isresult):
isresult = False
hasfraction = False
+ newnumber = False
display = "0"

+ if (newnumber):
+ display = "0"
+ newnumber = False
+
#handle digits
if ((len(display) < 7 and not hasfraction) or (len(display) < 8 and hasfraction)):

@@ -205,7 +211,7 @@
else:
total = float(display)
activeOp = "/"
- display = "0"
+ newnumber = True
isresult = False
hasfraction = False

@@ -221,7 +227,7 @@
else:
total = float(display)
activeOp = "*"
- display = "0"
+ newnumber = True
isresult = False
hasfraction = False

@@ -237,7 +243,7 @@
else:
total = float(display)
activeOp = "-"
- display = "0"
+ newnumber = True
isresult = False
hasfraction = False

@@ -253,7 +259,7 @@
else:
total = float(display)
activeOp = "+"
- display = "0"
+ newnumber = True
isresult = False
hasfraction = False

@@ -269,7 +275,7 @@
#handle decimal button
if (not hasfraction):
hasfraction = True
-
+
if (isFloat(display) and float(display) == 0):
display = "0."
else:
@@ -282,6 +288,7 @@
display = "0"
isresult = False
hasfraction = False
+ newnumber = False


if meter in btnMemOps:
@@ -304,6 +311,12 @@
elif (btnMemOps.index(meter) == 3):
#handle mr button
display = memory
+ # BUG: press 1, then MR: nothing heppens, should be display=0 (redraw?)
+ # message in the console:
+ # Call to meterClicked failed
+ # Traceback (most recent call last):
+ # File "db_calculator.py", line 318, in meterClicked
+ # ValueError: substring not found
hasfraction = (display.index(".") >= 0)

Just caution for users, as we getting used to single click in KDE, this is one, is double clicks for inputs/operations. Have pleasant experience :-)

If you right click on the theme and lock it, it will be single click. This is the same for any other SK theme.

This is definetly the most professional karamba theme I have seen yet! Keep up the great work! (how about a ipod style calculator instead of orange?)

Although it's not very original, I do like it :)

Nice work and I am waiting for more suprises :-).