def __init__(self):
self.numelements = 100
self.frame = swing.JFrame(windowClosing=self.do_quit)
# build menu bar
menubar = swing.JMenuBar()
file = swing.JMenu("File")
file.add(swing.JMenuItem("Load", actionPerformed=self.do_load))
file.add(swing.JMenuItem("Save", actionPerformed=self.do_save))
file.add(swing.JMenuItem("Quit", actionPerformed=self.do_quit))
menubar.add(file)
self.frame.JMenuBar = menubar
# create widgets
self.chart = Chart(visible=1)
self.execentry = swing.JTextArea(default_setup, 8, 60)
self.evalentry = swing.JTextField(default_expression,
actionPerformed=self.update)
# create options panel
optionsPanel = swing.JPanel(
awt.FlowLayout(alignment=awt.FlowLayout.LEFT))
# whether the plot is a line graph or a filled graph
self.filled = swing.JRadioButton("Filled",
actionPerformed=self.set_filled)
optionsPanel.add(self.filled)
self.line = swing.JRadioButton("Line", actionPerformed=self.set_line)
optionsPanel.add(self.line)
styleGroup = swing.ButtonGroup()
styleGroup.add(self.filled)
styleGroup.add(self.line)
# color selection
optionsPanel.add(swing.JLabel("Color:", RIGHT))
colorlist = filter(lambda x: x[0] != '_', dir(colors))
self.colorname = swing.JComboBox(colorlist)
self.colorname.itemStateChanged = self.set_color
optionsPanel.add(self.colorname)
# number of points
optionsPanel.add(swing.JLabel("Number of Points:", RIGHT))
self.sizes = [50, 100, 200, 500]
self.numpoints = swing.JComboBox(self.sizes)
self.numpoints.selectedIndex = self.sizes.index(self.numelements)
self.numpoints.itemStateChanged = self.set_numpoints
optionsPanel.add(self.numpoints)
# do the rest of the layout in a GridBag
self.do_layout(optionsPanel)
#########################################################################
# implement a simple calculator in Jython; evaluation runs a full
# expression all at once using the Python eval() built-in--Jython's
# source-code compiler is present at run-time, as in standard Python
#########################################################################
from java import awt # get access to Java class libraries
from pawt import swing # they look like Python modules here
labels = ['0', '1', '2', '+', # labels for calculator buttons
'3', '4', '5', '-', # will be used for a 4x4 grid
'6', '7', '8', '*',
'9', '.', '=', '/' ]
keys = swing.JPanel(awt.GridLayout(4, 4)) # do Java class library magic
display = swing.JTextField() # Python data auto-mapped to Java
def push(event): # callback for regular keys
display.replaceSelection(event.actionCommand)
def enter(event): # callback for the '=' key
display.text = str(eval(display.text)) # use Python eval() to run expr
display.selectAll()
for label in labels: # build up button widget grid
key = swing.JButton(label) # on press, invoke Python funcs
if label == '=':
key.actionPerformed = enter
else:
key.actionPerformed = push
keys.add(key)
#!/jython
from pawt import swing
import sys
from java.awt import Color, BorderLayout
def quit(e):
sys.exit()
top = swing.JFrame("PySwing")
box = swing.JPanel()
hello = swing.JLabel("hello world")
quit = swing.JButton("QUIT",
actionPerformed=quit,
background=Color.red,
foreground=Color.white)
box.add("North", hello)
box.add("South", quit)
top.contentPane.add(box)
top.pack()
top.visible = 1
#!/usr/bin/env jython
from pawt import swing
import sys
from java.awt import Color, BorderLayout
def quit(e):
sys.exit()
top = swing.JFrame("PySwing")
box = swing.JPanel(BorderLayout())
hello = swing.JLabel("Hello World!")
quit = swing.JButton("QUIT", actionPerformed=quit,
background=Color.red, foreground=Color.white)
box.add("North", hello)
box.add("South", quit)
top.contentPane.add(box)
top.pack()
top.visible = 1 # or True for Jython 2.2+
try:
xBeta[:] = [] #Makes those empty lists so they are ready to hold new
yBeta[:] = [] #data
elements[:] = []
setUp()
plot.removeAllGraphData() #To get rid of previous plots
plotAns()
filler.removeAll() #Removes previous table
makeTable() #Adds the new table
except ValueError:
error.text = "Make sure all of the magnet displays are displaying numbers before plotting."
#Putting stuff on panels-----------------------------------------------------
buttons = swing.JPanel(awt.GridLayout(3, 2, 1, 10))
for label in labels: #Adding most of the buttons
key = swing.JButton(label)
if label == 'clear x':
key.actionPerformed = clrx
if label == 'clear y':
key.actionPerformed = clry
if label == 'clear results':
key.actionPerformed = clrr
if label == 'clear all':
key.actionPerformed = clra
if label == 'clear energy':
key.actionPerformed = clre
if label == 'calculate':
key.actionPerformed = calc