class GUI(tkinter.Tk):
def __init__(self,):
tkinter.Tk.__init__(self)
self.title('Van der Pol Generator Visualizer v1.0')
self.geometry('800x450')
self.colors = self.get_colors()
self.parameters_label = tkinter.Label(self, text='Parameters', font=("Arial", 16))
self.parameters_label.place(x=20, y=17)
self.l_parameter_label = tkinter.Label(self, text='l = ', font=('Times New Roman', 13, 'italic'))
self.l_parameter_label.place(x=20, y=60)
self.l_parameter_entry = tkinter.Entry(self)
self.l_parameter_entry.config(width=8)
self.l_parameter_entry.place(x=60, y=63)
self.m_parameter_label = tkinter.Label(self, text='m = ', font=('Times New Roman', 13, 'italic'))
self.m_parameter_label.place(x=20, y=90)
self.m_parameter_entry = tkinter.Entry(self)
self.m_parameter_entry.config(width=8)
self.m_parameter_entry.place(x=60, y=93)
self.start_x_label = tkinter.Label(self, text='Start X = ', font=('Arial', 11))
self.start_x_label.place(x=20, y=160)
self.start_x_entry = tkinter.Entry(self)
self.start_x_entry.config(width=8)
self.start_x_entry.insert(0, '0.0')
self.start_x_entry.place(x=90, y=163)
self.start_y_label = tkinter.Label(self, text='Start Y = ', font=('Arial', 11))
self.start_y_label.place(x=20, y=180)
self.start_y_entry = tkinter.Entry(self)
self.start_y_entry.config(width=8)
self.start_y_entry.insert(0, '0.1')
self.start_y_entry.place(x=90, y=183)
self.h_label = tkinter.Label(self, text='h = ', font=('Arial', 11))
self.h_label.place(x=180, y=160)
self.steps_label = tkinter.Label(self, text='Steps = ', font=('Arial', 11))
self.steps_label.place(x=180, y=180)
self.h_entry = tkinter.Entry(self)
self.h_entry.config(width=8)
self.h_entry.insert(0, '0.01')
self.h_entry.place(x=210, y=163)
self.steps_entry = tkinter.Entry(self)
self.steps_entry.config(width=8)
self.steps_entry.insert(0, '10000')
self.steps_entry.place(x=240, y=183)
self.color_label = tkinter.Label(self, text='Color', font=('Arial', 11))
self.color_label.place(x=20, y=240)
self.color_box = Combobox(self, values=self.colors)
self.color_box.set('Black')
self.color_box.place(x=20, y=265)
self.add_button = tkinter.Button(self, text='Add', font=('Arial', 13), width=10, command=self.add_graphic)
self.add_button.place(x=220, y=260)
self.show_button = tkinter.Button(self, text='SHOW', font=('Arial', 14), width=15, height=2, command=self.show)
self.show_button.place(x=300, y=350)
self.plot = Plot()
self.info_labels = tkinter.Listbox(self, selectmode='MULTIPLE', width=60, height=17)
self.info_labels.bind('<<ListboxSelect>>', self.on_select)
self.info_labels.place(x=420, y=20)
def on_select(self, event):
selected = event.widget.curselection()
if not selected:
return
num = selected[0]
self.plot.remove(0)
self.info_labels.delete(num)
def show(self):
self.plot.draw()
def get_values(self):
try:
l_parameter = float(self.l_parameter_entry.get())
except ValueError:
self.show_error('l parameter is invalid')
return
try:
m_parameter = float(self.m_parameter_entry.get())
except ValueError:
self.show_error('m parameter is invalid')
return
start_x = float(self.start_x_entry.get())
start_y = float(self.start_y_entry.get())
h = float(self.h_entry.get())
steps = int(self.steps_entry.get())
color = self.color_box.get()
color = re.sub('\s*', '', color)
return l_parameter, m_parameter, (start_x, start_y), h, steps, color
def add_graphic(self):
values = self.get_values()
if not values:
return
l, m, start, h, steps, color = values
try:
generator = VanDerPolGenerator(l, m, start, h, steps)
self.plot.add(generator, color)
self.info_labels.insert('end', self.plot.str(-1))
except:
descr = sys.exc_info()[0]
self.show_error(descr)
def show_error(self, description):
messagebox.showerror('Error', description)
def get_colors(self):
file = open('all_colors.txt')
colors = file.readlines()
without_spaces = []
for color in colors:
new_color = color.replace('\s', '')
without_spaces.append(new_color)
file.close()
return without_spaces
