class MyView(gui):
def __init__(self, platform, gradient, *args, **kwargs):
self.gradient = gradient
self.step_size = 3
self.gradient_type = ['linear', 'radial', 'square']
self.current_fill = 0
self.grads = []
self.platform = platform
if self.platform == 'Pythonista':
ui.View.__init__(self, *args, **kwargs)
self.next_button = ui.Button(frame= \
(330, 360, 30, 60), title = 'Next')
self.next_button.background_color = (0.4, 0.4, 0.4)
self.next_button.action = self.next_fill
self.next_button.height = 30
self.next_button.width = 60
self.next_button.tint_color = 'white'
self.next_button.font = ('<system>', 12)
self.add_subview(self.next_button)
elif self.platform == 'Kivy':
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.button import Button
self.root = FloatLayout()
self.frame = kwargs['frame']
self.next_button = Button(text='NEXT',
size_hint_y=None,
size_hint_x=None,
height=30,
width=60,
font_size=12,
pos=(330, 10),
on_press=self.next_fill)
self.root.add_widget(self.next_button)
elif self.platform == 'Tk':
from tkinter import Tk
from tkinter import Canvas
from tkinter import Frame
from tkinter import Label
from tkinter import NW
self.master = Tk()
self.root = Canvas(self.master, width=kwargs['frame'][2], \
height=kwargs['frame'][3])
self.root.pack()
self.frame = kwargs['frame']
contour = Frame(self.master, height=30, width=60)
contour.pack_propagate(0) # don't shrink
label = Label(contour, text='NEXT', fg='white', bg='#585858', \
height=30, width=60)
label.bind("<Button-1>", self.tk_button_down)
label.bind("<ButtonRelease-1>", self.tk_button_up)
label.pack()
label.config(font=('TkDefaultFont', 12), padx=0, pady=0)
contour.place(x=330, y=360, anchor=NW)
def next_fill(self, sender):
self.current_fill += 1
if self.current_fill == 3:
self.current_fill = 0
if self.platform == 'Pythonista':
self.set_needs_display()
else:
self.draw()
def tk_button_down(self, event):
event.widget.config(bg='#00A5D4')
def tk_button_up(self, event):
event.widget.config(bg='#585858')
self.next_fill(self.tk_button_up)
def present_all(self, mode):
if self.platform == 'Pythonista':
self.present(mode)
if self.platform == 'Tk':
self.draw()
self.root.mainloop()
elif self.platform == 'Kivy':
from kivy.base import runTouchApp
from kivy.core.window import Window
Window.size = self.frame[2:4]
self.draw()
runTouchApp(self.root)
def draw(self):
x, y, w, h = self.frame
((fr, fg, fb), (tr, tg, tb)) = gradient
num_steps = int(w / self.step_size)
for step in range(num_steps):
x = step * self.step_size
t = step / (num_steps * 1.0)
if self.platform == 'Pythonista':
if self.gradient_type[self.current_fill] == 'linear':
path = ui.Path.rect(x, 0, self.step_size, h)
elif self.gradient_type[self.current_fill] == 'radial':
if w - ((2 * step) * self.step_size) >= 0:
path = ui.Path.oval(x, x, w - 2 * x, h - 2 * x)
elif self.gradient_type[self.current_fill] == 'square':
if w - ((2 * step) * self.step_size) >= 0:
path = ui.Path.rect(x,x,w - ((2*step) * \
(self.step_size)),h - (2*step)*self.step_size)
ui.set_color((fr * (1 - t) + tr * t, fg * (1 - t) + tg * t,
fb * (1 - t) + tb * t))
path.fill()
ui.set_color((fr * (1 - t) + tr * t, fg * (1 - t) + tg * t,
fb * (1 - t) + tb * t))
path.fill()
elif self.platform == 'Tk':
if step == 0:
self.root.create_rectangle( 0, 0, w, h, \
fill='black', outline='black')
cl = '#' + '%02x' % int((fr*(1-t)+tr*t) * 255) + \
'%02x' % int((fg*(1-t)+tg*t) * 255) + \
'%02x' % int((fb*(1-t)+tb*t) * 255)
if self.gradient_type[self.current_fill] == 'linear':
self.root.create_rectangle( x, 0, self.step_size + x, h, \
fill=cl, outline=cl)
elif self.gradient_type[self.current_fill] == 'radial':
if w - ((2 * step) * self.step_size) >= 0:
self.root.create_oval( x + self.step_size, x + \
self.step_size, w - ((2*step) * (self.step_size)) \
+ x, h - (2*step)*self.step_size + x, \
fill=cl, outline=cl)
elif self.gradient_type[self.current_fill] == 'square':
if w - ((2 * step) * self.step_size) >= 0:
self.root.create_rectangle( x, x, w - ((2*step) * \
(self.step_size)) + x, h - (2*step)*self.step_size \
+ x, fill=cl, outline=cl)
elif self.platform == 'Kivy':
if step == 0:
from kivy.graphics import Color
from kivy.graphics import Rectangle
self.grads.append ((fr*(1-t)+tr*t, fg*(1-t)+tg*t, \
fb*(1-t)+tb*t))
self.root.canvas.add(Color (fr*(1-t)+tr*t, fg*(1-t)+tg*t, \
fb*(1-t)+tb*t))
if self.gradient_type[self.current_fill] == 'linear':
self.root.canvas.add(Rectangle(pos = (x, 0), \
size = (self.step_size,h)))
elif self.gradient_type[self.current_fill] == 'radial':
if w - ((2 * step) * self.step_size) >= 0:
if step == 0:
from kivy.graphics import Line
self.root.canvas.add(Line(circle = (w/2, h/2, w - \
(2*step)*self.step_size), width = self.step_size))
elif self.gradient_type[self.current_fill] == 'square':
if w - ((2 * step) * self.step_size) >= 0:
self.root.canvas.add(Rectangle(pos = (x, x), size = \
(w - (2*step)*self.step_size, \
h - (2*step)*self.step_size)))
self.root.remove_widget(self.next_button)
self.root.add_widget(self.next_button)
