I have two groups of codes and the first part is a turtle graphics window and second part is a Tkinter window. How should I those two parts together to one window?
My first part of the code
from turtle import *
def move(thing, distance):
thing.circle(250, distance)
def main():
rocket = Turtle()
ISS = Turtle()
bgpic('space.gif')
register_shape("ISSicon.gif")
ISS.shape("ISSicon.gif")
rocket.speed(10)
ISS.speed(10)
counter = 1
title("ISS")
screensize(750, 750)
ISS.hideturtle()
rocket.hideturtle()
ISS.penup()
ISS.left(90)
ISS.fd(250)
ISS.left(90)
ISS.showturtle()
ISS.pendown()
rocket.penup()
rocket.fd(250)
rocket.left(90)
rocket.showturtle()
rocket.pendown()
rocket.fillcolor("white")
while counter == 1:
move(ISS, 3)
move(rocket, 4)
main()
Second part
from Tkinter import *
control=Tk()
control.title("Control")
control.geometry("200x550+100+50")
cline0=Label(text="").pack()
cline1=Label(text="Speed (km/s)").pack()
control.mainloop()
Thanks a lot ;)
Uhm, I'm not sure if mixing them is a good idea. This turtle module frequently uses the update command from Tcl, and this will very likely cause problems when more involved code is added in the mix (it is nice that apparently turtle can live with it). Anyway, one way to mix both is by using RawTurtle in place of Turtle, so you can pass your own Canvas which turtle will adjust for its needs.
Here is an example (I also replaced the infinite loop by an infinite re-schedule, basically):
import Tkinter
import turtle
def run_turtles(*args):
for t, d in args:
t.circle(250, d)
root.after_idle(run_turtles, *args)
root = Tkinter.Tk()
root.withdraw()
frame = Tkinter.Frame(bg='black')
Tkinter.Label(frame, text=u'Hello', bg='grey', fg='white').pack(fill='x')
canvas = Tkinter.Canvas(frame, width=750, height=750)
canvas.pack()
frame.pack(fill='both', expand=True)
turtle1 = turtle.RawTurtle(canvas)
turtle2 = turtle.RawTurtle(canvas)
turtle1.ht(); turtle1.pu()
turtle1.left(90); turtle1.fd(250); turtle1.lt(90)
turtle1.st(); turtle1.pd()
turtle2.ht(); turtle2.pu()
turtle2.fd(250); turtle2.lt(90)
turtle2.st(); turtle2.pd()
root.deiconify()
run_turtles((turtle1, 3), (turtle2, 4))
root.mainloop()
Related
OrbGuiClass creates a tkinter gui with two static candlestick charts. The data is pulled from csvs which is why code won't run for you. The third chart is a top-level chart which I want to be live and it works on its own outside of a canvas, GUI, etc but with the GUI FuncAnimation not running. I have seen examples where it's outside of the class but this doesn't work either.
class OrbGuiClass:
def __init__(self,root):
self.root=root
self.frame1=tk.Frame(root)
self.day_data=[self.dt,self.o,self.h,self.l,self.c]
self.tenwty_four=[self.ddt,self.oo,self.hh,self.ll,self.cc]
self.create_canvas()
self.create_live_canvas()
self.frame1.grid(row=4,column=2)
def create_canvas(self):
self.fig=Figure(figsize=(8,4))
self.ax1=self.fig.add_subplot(121,title='24 Hour Chart')
self.ax2=self.fig.add_subplot(122,title='Day Chart')
candlestick2_ochl(self.ax1,self.oo[9:len(self.oo)],
self.hh[9:len(self.hh)],self.ll[9:len(self.ll)],
self.cc[9:len(self.cc)])
candlestick2_ochl(self.ax2,self.o,self.h,self.l,self.c)
self.canvas = FigureCanvasTkAgg(self.fig, master=root)
self.canvas.get_tk_widget().grid(row=1,column=0,
columnspan=2,rowspan=2,sticky="ne")
self.canvas.show()
def create_live_canvas(self):
toplevel = tk.Toplevel()
self.fig2=Figure(figsize=(4,4), dpi=100)
self.ax=self.fig2.add_subplot(111)
self.canvas2 = FigureCanvasTkAgg(self.fig2, toplevel)
self.canvas2.show()
self.canvas2.get_tk_widget().pack()
self.anim=animation.FuncAnimation
(self.fig2,self.update,frames=100,interval=25)
def update(self, dummy):
#get_data() is a web crawling function that returns OHLC values
O,H,L,C= get_data()
self.ax=plt.gca()
self.ax.clear()
self.ax.set_xlim([-.5,.5])
candlestick2_ohlc(self.ax,O,H,L,C,width=.2,
colorup='g',colordown='r',alpha=1.0)
root = tk.Tk()
app=OrbGuiClass(root)
root.mainloop()
The only work around I can come up with to get this to work is to create a separate figure above the class using plt.figure() and running FuncAnimation below and then plt.show(). Also in order for this to work you need to include toplevel=tk.Toplevel() at top of the program and the gui will display in multiple windows. So now I have a taped together bike, but I was dreaming of a Ferrari. Ah reality. Make sure you put plt.figure() where I put it and Toplevel() below root=tk.Tk() and app=OrbGuiClass(root) because other wise your guy will be separated.
class OrbGuiClass:
def __init__(self,root):
def create_canvas(self):
self.fig=Figure(figsize=(8,4))
root = tk.Tk()
app=OrbGuiClass(root)
toplevel=tk.Toplevel()
fig2=plt.figure()
ax=fig2.add_subplot(111)
def update(dummy):
O,H,L,C= get_data()
ax=plt.gca()
ax.clear()
ax.set_xlim([-.5,.5])
candlestick2_ohlc(ax,O,H,L,C,width=.2,
colorup='g',colordown='r',alpha=1.0)
ani=animation.FuncAnimation(fig2,update,frames=100,interval=3000)
plt.show()
root.mainloop()
My computer doesn't have any way of letting me know if my NumLk is on or off, so I am trying to add an icon in my systray that will changed depending on the state of my NumLk. This .py will always be running when my computer is on.
So far I was able to mix 3 codes and I am able to display the icon in the systray but it doesn't get updated when the state of NumLk change. Actually if I press NumLk twice, I still get the same icon (the on one) and I get this error:
QCoreApplication::exec: The event loop is already running
File "\systray_icon_NumLk_on_off.py", line 21, in on_key_press
main(on)
File "\systray_icon_NumLk_on_off.py", line 46, in main
sys.exit(app.exec_())
SystemExit: -1
My code may not be the best way to do it, so any alternative is welcome! Here is what I came up so far:
#####get the state of NumLk key
from win32api import GetKeyState
from win32con import VK_NUMLOCK
#how to use: print(GetKeyState(VK_NUMLOCK))
#source: http://stackoverflow.com/questions/21160100/python-3-x-getting-the-state-of-caps-lock-num-lock-scroll-lock-on-windows
#####Detect if NumLk is pressed
import pyglet
from pyglet.window import key
window = pyglet.window.Window()
#source: http://stackoverflow.com/questions/28324372/detecting-a-numlock-capslock-scrlock-keypress-keyup-in-python
on=r'on.png'
off=r'off.png'
#window.event
def on_key_press(symbol, modifiers):
if symbol == key.NUMLOCK:
if GetKeyState(VK_NUMLOCK):
#print(GetKeyState(VK_NUMLOCK))#should be 0 and 1 but
main(on)
else:
main(off)
#window.event
def on_draw():
window.clear()
### display icon in systray
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
#source: http://stackoverflow.com/questions/893984/pyqt-show-menu-in-a-system-tray-application - add answer PyQt5
class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
def __init__(self, icon, parent=None):
QtWidgets.QSystemTrayIcon.__init__(self, icon, parent)
menu = QtWidgets.QMenu(parent)
exitAction = menu.addAction("Exit")
self.setContextMenu(menu)
def main(image):
app = QtWidgets.QApplication(sys.argv)
w = QtWidgets.QWidget()
trayIcon = SystemTrayIcon(QtGui.QIcon(image), w)
trayIcon.show()
sys.exit(app.exec_())
if __name__ == '__main__':
pyglet.app.run()
The reason for QCoreApplication::exec: The event loop is already running is actually because you're trying to start app.run() twice. Qt will notice there's already an instance running and throw this exception. When instead, what you want to do is just swap the icon in the already running instance.
Your main problem here is actually the mix of libraries to solve one task if you ask me.
Rather two tasks, but using Qt5 for the graphical part is fine tho.
The way you use Pyglet is wrong from the get go.
Pyglet is intended to be a highly powerful and effective graphics library where you build a graphics engine ontop of it. For instance if you're making a game or a video-player or something.
The way you use win32api is also wrong because you're using it in a graphical window that only checks the value when a key is pressed inside that window.
Now, if you move your win32api code into a Thread (a QtThread to be precise) you can check the state no matter if you pressed your key inside your graphical window or not.
import sys
import win32api
import win32con
from PyQt5 import QtCore, QtGui, QtWidgets
from threading import Thread, enumerate
from time import sleep
class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
def __init__(self, icon, parent=None):
QtWidgets.QSystemTrayIcon.__init__(self, icon, parent)
menu = QtWidgets.QMenu(parent)
exitAction = menu.addAction("Exit")
exitAction.setShortcut('Ctrl+Q')
exitAction.setStatusTip('Exit application')
exitAction.triggered.connect(QtWidgets.qApp.quit)
self.setContextMenu(menu)
class KeyCheck(QtCore.QThread):
def __init__(self, mainWindow):
QtCore.QThread.__init__(self)
self.mainWindow = mainWindow
def run(self):
main = None
for t in enumerate():
if t.name == 'MainThread':
main = t
break
while main and main.isAlive():
x = win32api.GetAsyncKeyState(win32con.VK_NUMLOCK)
## Now, GetAsyncKeyState returns three values,
## 0 == No change since last time
## -3000 / 1 == State changed
##
## Either you use the positive and negative values to figure out which state you're at.
## Or you just swap it, but if you just swap it you need to get the startup-state correct.
if x == 1:
self.mainWindow.swap()
elif x < 0:
self.mainWindow.swap()
sleep(0.25)
class GUI():
def __init__(self):
self.app = QtWidgets.QApplication(sys.argv)
self.state = True
w = QtWidgets.QWidget()
self.modes = {
True : SystemTrayIcon(QtGui.QIcon('on.png'), w),
False : SystemTrayIcon(QtGui.QIcon('off.png'), w)
}
self.refresh()
keyChecker = KeyCheck(self)
keyChecker.start()
sys.exit(self.app.exec_())
def swap(self, state=None):
if state is not None:
self.state = state
else:
if self.state:
self.state = False
else:
self.state = True
self.refresh()
def refresh(self):
for mode in self.modes:
if self.state == mode:
self.modes[mode].show()
else:
self.modes[mode].hide()
GUI()
Note that I don't do Qt programming often (every 4 years or so).
So this code is buggy at it's best. You have to press Ctrl+C + Press "Exit" in your menu for this to stop.
I honestly don't want to put more time and effort in learning how to manage threads in Qt or how to exit the application properly, it's not my area of expertis. But this will give you a crude working example of how you can swap the icon in the lower corner instead of trying to re-instanciate the main() loop that you did.
I have an image sequence rendered out. which I want to payback in a simple QMainWindow or QDialog. This is what I have sofar. It loads the images into the qlabel, but I cant see the label being updated, its just show the last loaded image, and nothing in between.
Maybe someone knows something?
from PySide import QtCore, QtGui
import shiboken
import maya.OpenMayaUI as apiUI
import time
def getMayaWindow():
"""
Get the main Maya window as a QtGui.QMainWindow instance
#return: QtGui.QMainWindow instance of the top level Maya windows
"""
ptr = apiUI.MQtUtil.mainWindow()
if ptr is not None:
return shiboken.wrapInstance(long(ptr), QtGui.QWidget)
class Viewer(QtGui.QMainWindow):
def __init__(self, parent = getMayaWindow()):
super(Viewer, self).__init__(parent)
self.setGeometry(400, 600, 400, 300)
self.setUi()
def setUi(self):
self.label = QtGui.QLabel()
self.setCentralWidget(self.label)
def showUi(self):
self.show()
def loadImage(self, path):
self.label.clear()
image = QtGui.QImage(path)
pp = QtGui.QPixmap.fromImage(image)
self.label.setPixmap(pp.scaled(
self.label.size(),
QtCore.Qt.KeepAspectRatio,
QtCore.Qt.SmoothTransformation))
x = Viewer()
x.showUi()
for i in range(1, 11):
x.loadImage("C://anim%03d.png" % i)
time.sleep(0.5)
You change pixmaps in loop and sleep (stop) all GUI thread, that's why your GUI freeze.
http://www.tutorialspoint.com/python/time_sleep.htm
It is not correct. qLabel.repaint() it is bad solution because it still blocks GUI. Of course you can use processEvents but it is bad approach too.
You should use QTimer for this purpose, use timeout() signal, create slot and change pixmaps in this slot. In this case your GUI will not be blocked because QTimer works asynchronously and images will be successfuly changed.
Same code with loop and sleep can help you only when this code will execute in another thread (multi threading) but it is not necessary because there is special class QTimer.
(Python beginner, excuse me if the question is too childish) Below the label which says “Hello”, create a label or bar or whatever to show the updating positions of my two turtles (what I mean by updating is that as a turtle moves the two coordinates of its position changes at the same time)
import Tkinter
import turtle
def run_turtles(*args):
for t, d in args:
t.circle(250, d)
root.after_idle(run_turtles, *args)
root = Tkinter.Tk()
root.withdraw()
frame = Tkinter.Frame(bg='black')
Tkinter.Label(frame, text=u'Hello', bg='grey', fg='white').pack(fill='x')
canvas = Tkinter.Canvas(frame, width=750, height=750)
canvas.pack()
frame.pack(fill='both', expand=True)
turtle1 = turtle.RawTurtle(canvas)
turtle2 = turtle.RawTurtle(canvas)
turtle1.ht(); turtle1.pu()
turtle1.left(90); turtle1.fd(250); turtle1.lt(90)
turtle1.st(); turtle1.pd()
turtle2.ht(); turtle2.pu()
turtle2.fd(250); turtle2.lt(90)
turtle2.st(); turtle2.pd()
root.deiconify()
run_turtles((turtle1, 3), (turtle2, 4))
root.mainloop()
Thank You Very Very Much!!
Save a reference to the Label: turtleLabel = Tkinter.Label(frame, text=u'Hello', bg='grey', fg='white')
And then in your run_turtles-function you can update the label by setting its text:
turtleLabel['text'] = "Here be coordinates"
You can also change the text with the configure method:
turtleLabel.configure(text="Here be coordinates")
Note that you can't call pack in the same statement that you create the widget; packreturns None which would negate trying to save the reference to the widget.
I am using Python 3.1 by the way.
I am trying to build a simple GUI using Tkinter - label, text entry field, button on the first row and editable text area with scrollbar to the right and on the bottom of it - on the second row. Please help me fix up the layout. What I have below does not quite work. If I have to use a grid, I will. I wish to keep the code very simple - I want to "sell" Python to some of my coworkers. So, I want to get a somewhat decent look and feel. Suggest better padding if you do not mind. Also, if my variable names, etc. seem weird, then please make a note.
At the same time I want to pretend that this is a throw-away script which I have not spent much time on. Since I am asking for your help, it ain't so, but they do not need to know ;). So, I do not want to introduce fancy code to create nice borders, etc. I just want something that is visually appealing, clean and simple. If I do not, then my presentation will not achieve its goal.
Thank you, my code is below:
class App:
def __init__(self, parent):
frame = Frame(parent)
self.__setup_gui(frame) # Call Helper
frame.pack(padx=15, pady=15)
parent.title('To be changed')
def __setup_gui(self, frame):
# First Row
self.cs_label = Label(frame, text='Change Set: ')
self.cs_label.pack(side=LEFT, padx=10, pady=10)
self.cs_val = Entry(frame, width=10)
self.cs_val.pack(side=LEFT, padx=10, pady=10)
self.get_button = Button(frame, text='Get', command=self.get_content)
self.get_button.pack(side=LEFT, padx=10, pady=10)
# Text area and scrollbar
self.text_area = Text(frame, height=10, width=50, background='white')
# Put a scroll bar in the frame
scroll = Scrollbar(frame)
self.text_area.configure(yscrollcommand=scroll.set)
self.text_area.pack(side=TOP)
scroll.pack(side=RIGHT,fill=Y)
self.clipboard_var = IntVar()
self.notepad_var = IntVar()
def get_content(self):
print(self.clipboard_var.get())
print(self.notepad_var.get())
###################################################################################################
if __name__ == '__main__':
root = Tk()
app = App(root)
root.mainloop()
You definitely want the grid manager -- Pack only works for a vertical or horizontal stackup by itself. You can use multiple frames to work around it, but I find it's easier to expand a GUI if you just do it with Grid to start.
Here's what I've worked up real quick based what you said and the code. I reduced/removed the padding -- it looked huge for me -- and I set up two scrollbars, in a subframe to make the padding work out more easily. Note that to make the horizontal scrollbar useful your Text area needs to have wrap=NONE; otherwise you might as well use the easy 'ScrolledText' widget from tkinter.scrolledtext and skip the horizontal scroll bar.
I've now reframed things a bit to allow for resize, with a minimum size that shows the top buttons -- see the uses of minsize and row/columnconfigure.
BTW, it looks like your variables aren't being pulled from anywhere -- is that intentional?
from tkinter import *
class App:
def __init__(self, parent):
self.__setup_gui(parent) # Call Helper
parent.title('To be changed')
def __setup_gui(self, parent):
# First Row
self.rowframe = Frame(parent)
self.rowframe.grid()
self.cs_label = Label(self.rowframe, text='Change Set: ')
self.cs_label.grid(row=0, column=0, padx=2, pady=2)
self.cs_val = Entry(self.rowframe, width=10)
self.cs_val.grid(row=0, column=1, padx=2, pady=2)
self.get_button = Button(self.rowframe, text='Get', command=self.get_content)
self.get_button.grid(row=0, column=2, padx=2, pady=2)
parent.update_idletasks()
parent.minsize(width=self.rowframe.winfo_width(), height=self.rowframe.winfo_height())
# Text area and scrollbars
self.textframe = Frame(parent)
self.textframe.grid(row=1, columnspan=2, padx=2, pady=2, sticky=N+S+E+W)
self.hscroll = Scrollbar(self.textframe, orient=HORIZONTAL)
self.vscroll = Scrollbar(self.textframe)
self.text_area = Text(self.textframe, height=10, width=50, wrap=NONE, background='white', yscrollcommand=self.vscroll.set, xscrollcommand=self.hscroll.set)
self.text_area.grid(row=0, column=0, sticky=N+S+E+W)
self.hscroll.config(command=self.text_area.xview)
self.hscroll.grid(row=1, column=0, sticky=E+W)
self.vscroll.config(command=self.text_area.yview)
self.vscroll.grid(row=0, column=1, sticky=N+S)
# Row 0 defaults to 0
parent.rowconfigure(1, weight=1)
parent.columnconfigure(1, weight=1)
# Textarea setup
self.textframe.rowconfigure(0, weight=1)
self.textframe.columnconfigure(0, weight=1)
self.clipboard_var = IntVar()
self.notepad_var = IntVar()
def get_content(self):
print(self.clipboard_var.get())
print(self.notepad_var.get())
###################################################################################################
if __name__ == '__main__':
root = Tk()
app = App(root)
root.mainloop()
Now, all that said...you might get more visual appeal with PyGTK, PyQt, or wxPython, though tkinter coming "standard" is a nice feature.