I have a problem using the bind option so I can click a button in my keyboard,
and call a function once the key is pressed.
I tried taking other codes that have the similar purpose and I saw that I'm doing pretty much the same, though I still have some problem I must've missed.
I will be very thankful if you help me with this.
Here's my code:
# -*- coding: utf-8 -*-
#Imports
from Tkinter import *
from PIL import ImageTk, Image
import time
import tkMessageBox
#===========================================================================================================================================#
#Tkinter Class
class App(Frame):
def __init__(self, master=None):
Frame.__init__(self, master)
self.pack()
#===========================================================================================================================================#
#Game Pieces Classes
class Board:
def __init__(self, rows = 7, columns = 6, picture_height = None, picture_width = None):
self.rows = rows
self.columns = columns
self.picture = ImageTk.PhotoImage(Image.open(r"C:\Users\Ariel\Desktop\Python\4inarow.gif"))
self.picture_height = self.picture.height()
self.picture_width = self.picture.width()
def create_and_pack(self, canvas):
board_item = canvas.create_image(700, 370, image = self.picture)
def __str__(self):
print "Rows:", self.rows, "Columns:", self.columns
class Disk:
def __init__(self, player_number = None):
self.picture = ImageTk.PhotoImage(Image.open(r"C:\Users\Ariel\Desktop\Python\me" + str(player_number) + ".gif"))
self.player_number = player_number
def create_and_pack(self, canvas, x, y):
disk_item = canvas.create_image(x, y, image = self.picture)
def get_x_parameter(self, number):
#X growing by 70~73 per number
x = 330
for i in range(7):
if number == i:
x = x + i * 72
return x
def get_y_parameter(self, number):
#Y lowered by 70~73 per number
y = 635
for i in range(6):
if number == i:
y = y - i * 72
return y
def place(self, canvas, x, y):
#First left down circle parameters
#480, 635
canvas.move(self.picture, x, y)
def __str__(self):
print "The disk's picture string:", self.picture, "The player disk's number:", self.player_number
#===========================================================================================================================================#
#Game Class
class Game:
def __init__(self, board = None, disk1 = None, disk2 = None):
self.disk1 = disk1
self.disk2 = disk2
self.board = board
#===========================================================================================================================================#
#KeyboardClass
class Keyboard:
def __init__(self, key_number = None):
self.key_number = key_number
def press_and_place(self, canvas, number, function):
canvas.focus_set()
canvas.bind("<" + str(number) + ">", function)
#===========================================================================================================================================#
#Main.
myapp = App()
myapp.master.title("4 in a Row")
myapp.master.maxsize(2000, 1200)
#---------------------------------------------------------------------------------------------------#
GameBoard = Board(7, 6)
FirstPlayerDisk = Disk(1)
SecondPlayerDisk = Disk(2)
GameClass = Game(GameBoard, FirstPlayerDisk, SecondPlayerDisk)
#---------------------------------------------------------------------------------------------------#
#Creating Canvas and placing the disks and the board.
board_canvas = Canvas(width = GameBoard.picture_width, height = GameBoard.picture_height)
board_canvas.pack(expand=1, fill=BOTH)
GameBoard.create_and_pack(board_canvas)
FirstPlayerDisk.create_and_pack(board_canvas, 330, 635)
SecondPlayerDisk.create_and_pack(board_canvas, 260, 635)
#---------------------------------------------------------------------------------------------------#
#Creating Keyboard instance and placing the first disk in the last row in a column of choice
number_choice = 3
KeyboardClass = Keyboard(number_choice)
first_player_x = FirstPlayerDisk.get_x_parameter(number_choice)
first_player_y = FirstPlayerDisk.get_y_parameter(number_choice)
KeyboardClass.press_and_place(board_canvas, number_choice, FirstPlayerDisk.place(board_canvas, first_player_x, first_player_y))
#---------------------------------------------------------------------------------------------------#
myapp.mainloop()
Thanks a lot in advance.
I believe your problem lies in this line:
KeyboardClass.press_and_place(board_canvas, number_choice, FirstPlayerDisk.place(board_canvas, first_player_x, first_player_y))
the third argument FirstPlayerDisk.place(board_canvas, first_player_x, first_player_y) is actually a None type as
def place(self, canvas, x, y):
#First left down circle parameters
#480, 635
canvas.move(self.picture, x, y)
returns None
From How to bind a keypress to a button in Tkinter and this site, you need to pass the function, that is, simply FirstPlayerDisk.place (no parenthesis following it).
Related
I'm currently working on a Synthesizer inside Python for a school project and currently have a really troublesome issue. I have a Stack of Checkboxes which mark when a note is played and on which pitch inside a sequencer. My Problem is that whenever I open two Oscillators inside my synthesizer and put in the Values inside the checkboxes, the checkboxes duplicate their value over the multiple windows, but don't do it for the actual sequence, as in I have two lists with correct values, but the values aren't properly displayed inside the window.
To Replicate the Problem hit "new Oscillator" then click on "Arpeggio", do this a second time and click any Checkbox on the Arppeggio Windows
I know this might be a confusing explanation, but I'm going to link the complete code in the bottom so you can try it out and might know what I'm talking about.
The problem occurs inside the "Arpeggio" Class
import numpy # used for Waveform Calculation
from functools import partial # used for Command Combining
from tkinter import * # used for GUI
from tkinter import ttk # used for GUI
from tkinter import filedialog # used for GUI
np = numpy # Simplifying Libraries
tk = ttk # Simplifying Libraries
fd = filedialog # Simplifying Libraries
root = Tk()
#StartupFunction
def StartUp():
print("")
print("Starting Startup")
app = App(root) # Initializing GUI
print("Finished Startup")
main()
("Exiting Startup")
#Main Program Function
def main():
print("Executing Main")
root.mainloop()
print("Finished Main")
return 0
class Oscillator():
pass
class App(tk.Frame):
OscillatorWindowList = []
OscillatorList = []
SoundInputArrayList = []
def __init__(self, *args, **kwargs):
tk.Frame.__init__(self, *args, **kwargs)
root.title("PySynth")
root.geometry("984x300")
root.resizable(False, True)
root.maxsize(984,720)
btnNewOscillator = Button(root,text="New Oscillator",command=self.NewOscillator,relief=RIDGE,bg="#2d2d2d",fg="white")
btnNewOscillator.place(x = 8, y = 8+128)
def NewOscillator(self):
print("AddingOscillator")
self.OscillatorList.append(Oscillator())
self.SoundInputArrayList.append(SoundInputArray(root,len(self.OscillatorList)-1,len(self.OscillatorList)-1))
print(self.OscillatorList)
self.OscillatorWindowList.append(OscillatorGUI(root,self.OscillatorList[len(self.OscillatorList)-1],len(self.OscillatorList)))
def EXIT(self):
root.destroy()
#$SoundInputArray
class SoundInputArray():
actv = []
CheckbuttonList = []
CheckButtonFreq = []
i=0
ButtonCount = 32
VolumeSlider = None
btnArpeggio = None
Arpeggio = None
hasArpeggio = False
LFO = None
ArpeggioList = [(0,0)]
def __init__(self,master,oscillatorCount,number):
btnArpeggio = Button(master,text="Arpeggio",command=self.OpenArpeggio,relief=RIDGE,bg="#2d2d2d",fg="white")
btnArpeggio.place(x = 8, y = (1+oscillatorCount)*48 +128 )
def OpenArpeggio(self):
if self.Arpeggio == None:
self.Arpeggio = Arpeggio()
def GetArpeggio(self):
return self.Arpeggio
#$Arpeggio
class Arpeggio():
SoundValueList = None
def __init__(self):
GUI = Toplevel(root)
GUI.title("Arpeggio")
GUI.geometry("480x320")
GUI.resizable(False, False)
GUI.configure(bg="#171717")
self.SoundValueList = np.arange(0,16)
self.DrawUI(GUI)
self.ClearList()
def DrawUI(self,frame):
Button(frame,text="display", command= self.PrintSound, width=11,bg="#171717",).place(x = 4, y = 4)
Button(frame,text="empty", command= self.ClearList).place(x = 96, y = 4)
y = 1
x = 1
checkbuttonList = []
for y in range(1,13):
for x in range(0,16):
updatecommand = partial(self.UpdateList,x,y)
checkbuttonList.append(Checkbutton(frame, variable=self.SoundValueList[x], onvalue=y, offvalue=0,command = updatecommand))
checkbuttonList[len(checkbuttonList)-1].place(x = x*24 + 96, y= y*24 + 8)
def ClearList(self):
for i in range(0,16):
self.SoundValueList[i] = 0
def UpdateList(self,x,value):
if (self.SoundValueList[x] == value):
self.SoundValueList[x] = 0
else:
self.SoundValueList[x] = value
self.PrintSound()
def PrintSound(self):
print(self.SoundValueList)
def GetList(self):
print(self.SoundValueList)
return self.SoundValueList
StartUp() # Initiate Program
I am currently working on a chess program in python (Tkinter), I have got a board to generate with buttons so that I can click on pieces, I planned to use a canvas for each of the chess pieces and then move them around. Is there any way to make it so I can click through the canvas?
try:
from Tkinter import *
except:
from tkinter import *
class grid_piece():
def __init__(self, canvas, row, column, colour_boolean, size):
colour_1 = '#934904'
colour_2 = '#fce2c9'
self.row = row
self.column = column
grid_piece = Button(canvas, height = size // 100,
width = size // 50,
command=lambda: my_board.button_press([row, column]))
grid_piece.grid(row=row, column = column)
if colour_boolean:
grid_piece.configure(bg = colour_1, fg = colour_1)
else:
grid_piece.configure(bg = colour_2, fg = colour_2)
class pawn():
def __init__(self, size, canvas, position):
self.pawn_canvas = Canvas(canvas, width = size // 8, height = size // 8
)
self.pawn_canvas.grid(row = position[0], column = position[1])
class Board():
def __init__(self, master, size):
self.canvas = Canvas(master, width=size, height=size)
self.canvas.pack()
self.size = size
def generate_board(self):
colour_boolean = True
self.board_array = []
for column in range(8):
column_pieces = []
colour_boolean = not colour_boolean
for row in range(8):
colour_boolean = not colour_boolean
piece = grid_piece(self.canvas, row, column, colour_boolean, self.size)
column_pieces.append(piece)
self.board_array.append(column_pieces)
def display_pieces(self):
white_pieces = []
black_pieces = []
for x in range(8):
Pawn = pawn(self.size, self.canvas, [1, x])
white_pieces.append(Pawn)
def button_press(self, position):
print(position)
def onclick(*args):
print(*args)
root = Tk()
my_board = Board(root, 600)
my_board.generate_board()
my_board.display_pieces()
root.mainloop()
Here is an image of my board, the white squares are blank canvases that I will turn into objects once I create the pieces.
When I run Python script in python3 it works well but in python 2.7 I get an error and I should run this code in Python 2.7 :
this is my code:I want to test some algorithms on path-finding and want to create a window consisting of grids where I can drag my mouse while clicked to create walls and delete them with right click and drag
import Tkinter
class Cell():
FILLED_COLOR_BG = "green"
EMPTY_COLOR_BG = "white"
FILLED_COLOR_BORDER = "green"
EMPTY_COLOR_BORDER = "black"
def __init__(self, master, x, y, size):
""" Constructor of the object called by Cell(...) """
self.master = master
self.abs = x
self.ord = y
self.size= size
self.fill= False
def _switch(self):
""" Switch if the cell is filled or not. """
self.fill= not self.fill
def draw(self):
""" order to the cell to draw its representation on the canvas """
if self.master != None :
fill = Cell.FILLED_COLOR_BG
outline = Cell.FILLED_COLOR_BORDER
if not self.fill:
fill = Cell.EMPTY_COLOR_BG
outline = Cell.EMPTY_COLOR_BORDER
xmin = self.abs * self.size
xmax = xmin + self.size
ymin = self.ord * self.size
ymax = ymin + self.size
self.master.create_rectangle(xmin, ymin, xmax, ymax, fill = fill, outline = outline)
class CellGrid(Canvas):
def __init__(self,master, rowNumber, columnNumber, cellSize, *args, **kwargs):
Canvas.__init__(self, master, width = cellSize * columnNumber , height = cellSize * rowNumber, *args, **kwargs)
self.cellSize = cellSize
self.grid = []
for row in range(rowNumber):
line = []
for column in range(columnNumber):
line.append(Cell(self, column, row, cellSize))
self.grid.append(line)
#memorize the cells that have been modified to avoid many switching of state during mouse motion.
self.switched = []
#bind click action
self.bind("<Button-1>", self.handleMouseClick)
#bind moving while clicking
self.bind("<B1-Motion>", self.handleMouseMotion)
#bind release button action - clear the memory of midified cells.
self.bind("<ButtonRelease-1>", lambda event: self.switched.clear())
self.draw()
def draw(self):
for row in self.grid:
for cell in row:
cell.draw()
def _eventCoords(self, event):
row = int(event.y / self.cellSize)
column = int(event.x / self.cellSize)
return row, column
def handleMouseClick(self, event):
row, column = self._eventCoords(event)
cell = self.grid[row][column]
cell._switch()
cell.draw()
#add the cell to the list of cell switched during the click
self.switched.append(cell)
def handleMouseMotion(self, event):
row, column = self._eventCoords(event)
cell = self.grid[row][column]
if cell not in self.switched:
cell._switch()
cell.draw()
self.switched.append(cell)
if __name__ == "__main__" :
app = Tk()
grid = CellGrid(app, 50, 50, 10)
grid.pack()
app.mainloop()
And error:
NameError: name 'Canvas' is not defined
How can I change my code in order to runnig this in Python 2.7?
Well, it's not defined all right, I wonder how could it run on Py3, unless Tkinter there dumped Canvas into your namespace somehow.
You probably wanted to do class CellGrid(Tkinter.Canvas), but I don't remember the exact structure of Tkinter offhand, so it might be in a subpackage or something.
You need to import elements of module you want to use, in your case:
from Tkinter import Canvas, Tk
You can also do:
from Tkinter import *
but it is not recomended way of doing. Your code may not work right, if you use many modules, and they two of them happend to have same name of method.
Last way is just
import Tkinker
but then every time you use element of this module, you need to add full path so if you wanna use Canvas, you need to useTkinker.Canvas.
Also remember that in Python 2.7 you import Tkinter and in 3.X import tkinter
I have been creating a GUI application for university using Tkinter and python.
I am however having a problem where when the application first loads, or when i make the window smaller, the only widget visible is the Plotter (extends canvas) widget. If i expand the window however, the others become visible.
This is my code:
from assign2_support import *
import tkinter as tk
from tkinter import *
from tkinter.messagebox import *
import random
from tkinter.filedialog import askopenfilename
def get_station_name(filename):
temp1 = list(filename.split("/"))
temp = list((temp1[len(temp1) - 1]).split("."))
return temp[0]
def isInDict(value, dic):
if value in dic:
return True
else:
return False
#TemperaturePlotApp class
class TemperaturePlotApp(tk.Frame):
def __init__(self, parent, *args, **kwargs):
tk.Frame.__init__(self, parent, *args, **kwargs)
self.stations = TemperatureData()
self.color = ['#f90909', '#ffa405', '#c0c203', '#1abd04', '#058096', '#042ee1',
'#d30af1','#ec06b3']
self.selected = dict()
self.usedColors = dict()
self.master.title("Max Temperature")
self.button = tk.Button(self, text="File", command=self.load_file, width=10)
self.button.pack(side = 'top', anchor = tk.W)
self.plotter = Plotter(self,width=850, height=400, bg="white", highlightthickness=0)
self.plotter.pack(fill='both', expand=tk.YES)
self.plotter.bind("<B1-Motion>", self.onPlotClicked)
self.plotter.bind("<Button 1>", self.onPlotClicked)
# tag all of the drawn widgets TODO delete
self.plotter.addtag_all("all")
self.df = DataFrame(self)
self.df.pack(fill = tk.X, anchor = tk.N, pady = 10)
self.sf = SelectionFrame(self)
self.sf.pack(fill = tk.X, anchor = tk.N)
self.pack(fill = 'both', side = 'left', expand = tk.YES)
def loadStation(self, stationName):
self.stations.load_data(stationName + ".txt")
def onPlotClicked(self, event):
x = event.x
year = self.ct.get_year(x)
self.df.setYear(year)
try:
self.plotter.delete(self.l)
except:
pass
self.l = self.plotter.create_line(x, 0, x, self.plotter.winfo_height(), fill = "black")
for s in self.stations.get_stations():
if self.selected[s] == True:
temp = self.stations.get_data()[s].get_temp(int(year))
print(temp)
self.df.setDatumText(s, temp)
def plotData(self):
self.plotter.delete(tk.ALL)
minY, maxY, minT, maxT = self.stations.get_ranges()
self.ct = CoordinateTranslator(self.plotter.winfo_width(),self.plotter.winfo_height(), minY, maxY, minT, maxT)
self.i = 0
data = self.stations.get_data()
for s in self.stations.get_stations():
firstRun = True
if s in self.usedColors:
pass
else:
self.usedColors[s] = random.choice(self.color)
if self.sf.isCheckButton(s) == False:
self.sf.addCheckButton(s, self.usedColors[s], lambda: self.toggleCheckButton(s))
self.selected[s] = self.stations.is_selected(self.i)
if self.selected[s] == True:
if self.df.isInDataFrameLabels(s) == False:
self.df.addDatum("", self.usedColors[s], s)
if self.df.isHidden(s) == True:
self.df.showDatum(s)
for d in data[s].get_data_points():
if firstRun:
self.lastX, self.lastY = self.ct.temperature_coords(d[0], d[1])
firstRun = False
else:
x, y = self.ct.temperature_coords(d[0], d[1])
self.plotter.create_line(self.lastX, self.lastY, x, y, fill = self.usedColors[s])
self.lastX = x
self.lastY = y
else:
self.df.hideDatum(s)
self.i = self.i + 1
def toggleCheckButton(self, stationName):
if self.selected[stationName] == True:
self.selected[stationName] = False
else:
self.selected[stationName] = True
self.plotData()
def load_file(self):
fname = askopenfilename(filetypes=([("Text files","*.txt")]))
if fname:
fn = get_station_name(fname)
self.loadStation(fn)
self.plotData()
try:
print(fname) # TODO Delete
except:
showinfo("Failed to read file", "failed to read file: " + fname)
return
# Start DataFrame class
class DataFrame(tk.Frame):
def __init__(self,parent, *args,**kwargs):
tk.Frame.__init__(self, parent,*args,**kwargs)
self.lb = dict()
self.l = tk.Label(self, text="Data for ")
self.l.pack(side = 'left')
self.year = tk.Label(self, text="")
self.year.pack(side = 'left')
self.hidden = dict()
def addDatum(self, txt, color, stationName):
l1 = tk.Label(self, text=txt, fg = color)
self.lb[stationName] = l1
l1.pack(side = 'left')
self.hidden[stationName] = False
def setDatumText(self, stationName, txt):
self.lb[stationName].configure(text = txt)
def hideDatum(self, stationName):
self.lb[stationName].pack_forget()
self.hidden[stationName] = True
def showDatum(self, stationName):
self.lb[stationName].pack(side = 'left')
self.hidden[stationName] = False
def isHidden(self, stationName):
return self.hidden[stationName]
def setYear(self, year):
self.year.configure(text = str(year) + ":")
def getDataFrameLabels(self):
return self.lb
def isInDataFrameLabels(self,stationName):
return isInDict(stationName, self.lb)
# Start SelectionFrame Class
class SelectionFrame(tk.Frame):
def __init__(self,parent,*args,**kwargs):
tk.Frame.__init__(self, parent,*args,**kwargs)
self.cb = dict()
self.l = tk.Label(self, text="Station Selection: ").pack(side = 'left')
def addCheckButton(self, text, color, com):
c = tk.Checkbutton(self, text = text, fg = color, activeforeground = color, command = com)
self.cb[text] = c
c.select()
c.pack(side = 'left')
def getCheckButtons(self):
return self.cb
def isCheckButton(self, stationName):
if stationName in self.cb:
return True
else:
return False
# Start Plotter Class
class Plotter(tk.Canvas):
def __init__(self, parent,*args,**kwargs):
Canvas.__init__(self,parent,**kwargs)
self.bind("<Configure>", self.on_resize)
self.height = self.winfo_reqheight()
self.width = self.winfo_reqwidth()
def on_resize(self,event):
# determine the ratio of old width/height to new width/height
wscale = float(event.width)/self.width
hscale = float(event.height)/self.height
self.width = event.width
self.height = event.height
# resize the canvas
self.config(width=self.width, height=self.height)
# rescale all the objects tagged with the "all" tag
self.scale("all",0,0,wscale,hscale)
#Begin TemperatureData class
class TemperatureData:
def __init__(self):
self._data = dict()
self._stationNames = list()
self._stationsSelected = list()
def load_data(self, filename):
station_name = get_station_name(filename)
self._stationNames.append(station_name)
self._stationsSelected.append(True)
station = Station(filename)
self._data[station_name] = station
def get_data(self):
return self._data
def toggle_selected(self, i):
if self._stationsSelected[i] == True:
self._stationsSelected[i] = False
else:
self._stationsSelected[i] = True
def is_selected(self, i):
return self._stationsSelected[i]
def get_stations(self):
return self._stationNames
def get_ranges(self):
min_year = None
max_year = None
min_temp = None
max_temp = None
for k, v in self._data.items():
if min_year == None or max_year == None or min_temp == None or max_temp == None:
min_year, max_year = v.get_year_range()
min_temp, max_temp = v.get_temp_range()
else:
t_min_year, t_max_year = v.get_year_range()
t_min_temp, t_max_temp = v.get_temp_range()
min_year = min(min_year, t_min_year)
max_year = max(max_year, t_max_year)
min_temp = min(min_temp, t_min_temp)
max_temp = max(max_temp, t_max_temp)
return (min_year, max_year, min_temp, max_temp)
#End TemperatureData class
# My support
def load_stations(stations_file):
"""Return the list of station names
load_stations() -> list(str)
"""
fd = open(stations_file, "r")
stations = []
for line in fd:
line = line.strip()
if not line:
continue
stations.append(line)
fd.close()
return stations
##################################################
# !!!!!! Do not change (or add to) the code below !!!!!
###################################################
def main():
root = tk.Tk()
app = TemperaturePlotApp(root)
app.pack()
root.geometry("800x400")
root.mainloop()
if __name__ == '__main__':
main()
If someone wouldnt mind pointing out to me why this is happening, i would much appreciate it, as the assignment is due in 4 hours, and i have no idea what to do.
EDIT:
assign2_support.py file code:
#
# Support for assignment 2
#
# Imports for use in your assignment
import tkinter as tk
import os.path
from tkinter import filedialog
from tkinter import messagebox
# colours for drawing lines and text
COLOURS = ['#f90909', '#ffa405', '#c0c203', '#1abd04', '#058096', '#042ee1',
'#d30af1','#ec06b3']
def load_data_points(filename):
"""Return the data contained in the given file.
load_data_points(str) -> dict(int:float)
"""
fd = open(filename, 'r')
data = {}
for line in fd:
parts = line.split(',')
data[int(parts[0])] = float(parts[1])
return data
class FileExtensionException(Exception):
pass
class Station(object):
"""A class for storing yearly average temperature data for a given station
"""
def __init__(self, stationfile):
""" Constructor: Station(str)"""
self._data = load_data_points(stationfile)
keys = self._data.keys()
self._min_year = min(keys)
self._max_year = max(keys)
temps = self._data.values()
self._min_temp = min(temps)
self._max_temp = max(temps)
base = os.path.basename(stationfile)
if not base.endswith('.txt'):
raise(FileExtensionException())
self._name = base.replace(".txt", "")
def get_temp(self, year):
"""Return the temperature average for the given year.
get_temp(int) -> float
"""
return self._data.get(year)
def get_data_points(self):
"""Return the data as a list of points in year order
get_data_points() -> list((int, float))
"""
return [(year, self._data[year]) for year in sorted(self._data.keys())]
def get_year_range(self):
""" Return the range of years in the data
get_year_range() -> (int, int)
"""
return (self._min_year, self._max_year)
def get_temp_range(self):
"""Return the range of temperatures in the data
get_temp_range() -> (float, float)
"""
return (self._min_temp, self._max_temp)
def get_name(self):
return self._name
def __repr__(self):
return "Station({0})".format(self._name)
class CoordinateTranslator(object):
"""A class which manages translation of data values into (x, y) coordinates.
The application manages real-world data (year, temp), but the Canvas
drawings require (x, y) coordinates. This class
converts between the two.
"""
def __init__(self, width, height, min_year, max_year, min_temp, max_temp):
"""
Create a CoordinateTranslator with the given canvas width/height,
the smallest and largest years and
the smallest and largest temperatures
Constructor: CoordinateTranslator(int, int, int, int, float, float)
"""
self._min_year = min_year
self._max_year = max_year
self._min_temp = min_temp
self._max_temp = max_temp
self.resize(width, height)
def resize(self, width, height):
"""Adjust the scaling factors to account for a new width/height.
After the Canvas resizes, call this method to fix the scaling.
"""
self._xscale = (self._max_year - self._min_year) / width
self._yscale = (self._max_temp - self._min_temp) / height
self._width = width
self._height = height
def temperature_coords(self, year, temperature):
"""Given a year and a temperature,
return (x, y) coordinates to plot.
temperature_coords(int, float) -> (float, float)
"""
return ((year - self._min_year)/ self._xscale,
self._height - (temperature - self._min_temp) / self._yscale)
def get_year(self, x):
"""Given an x coordinate on the Canvas, return the year that it
corresponds to.
get_year(float) -> int
"""
return int(x * self._xscale + 0.5) + self._min_year
## CSSE7030
def best_fit(points):
"""Given points are a list of (x,y) points ordered by x
this function computes the best line fit over that range and
returns the coords of end points of the line.
best_fit(list((floatt, float)) -> ((float, float), (float, float))
"""
count = len(points)
if count == 0:
# needed to avoid division by zero
# return something that will not appear on screen if drawn
return ((-1,-1), (-1, -1))
x_values = [x for x, _ in points]
y_values = [y for _, y in points]
sum_x = sum(x_values)
sum_y = sum(y_values)
sum_x2 = sum(x**2 for x in x_values)
sum_y2 = sum(y**2 for y in y_values)
sum_xy = sum(x*y for x,y in points)
x_mean = sum_x/count
y_mean = sum_y/count
slope = (sum_xy - sum_x * y_mean) / (sum_x2 - sum_x * x_mean)
y_inter = y_mean - slope * x_mean
return ((x_values[0], slope * x_values[0] + y_inter),
(x_values[-1], slope * x_values[-1] + y_inter))
Thanks heaps
Corey :)
You are creating a canvas with a requested size of 850x400. You are fixing the window size to be 800x400. Because there's not enough room in the window to fit everything in, Tkinter has to start reducing widgets, or removing widgets from view. It won't attempt to reduce a widget below its requested size, so it's not going to shrink your canvas. So, it's next option is to start hiding widgets from view.
When tkinter has to start hiding part or all of a widget from view, it starts with the widget last in the "packing list" -- the last widget to have called pack(...). Thus, if you pack the canvas last, before the bottom frame, it will be the one that starts getting shrunk below its requested size.
A simple fix is to remove the width and height attributes of the canvas, and also remove the binding on <Configure>. This lets tkinter decide the size of the canvas, which when set up properly, means that it will grow and shrink to fit the available space.
You can also save packing of the canvas to the very last, which makes it the first widget to start getting "chopped off" when there isn't enough room.
For the complete description of the packing algorithm see http://tcl.tk/man/tcl8.5/TkCmd/pack.htm#M26
I want to be able to select a button based on what row and column it is in on a grid and the button and control its Text and Relief. I haven't been able to find anything on widgets or cells used in this manner.
Edit:
I changed where root is placed and now it says that I can't use a tuple that I recieved for 'relief' which makes sense, I need to access the widget itself. Any reccomendations
import tkinter
import functools
import random
from time import sleep
width = input('Enter the grid width. ')
height = input('Enter the grid height. ')
numb = input('Enter the number of bombs. ')
Matrix = [[0 for lp in range(int(width))] for fg in range(int(height))]
def ranintx():
return random.randint(0,int(width))
def raninty():
return random.randint(0,int(height))
def placemines():
y = ranintx()
x = raninty()
for ranintformine in range(int(numb)):
x = ranintx()
y = raninty()
Matrix[y-1][x-1] = 1
placemines()
def sunken(event, self, x, y):
button = event.widget
button['relief'] = 'sunken'
if x - 1 < 0 :
return
if x > int(width) + 1 :
return
if y - 1 < 0 :
return
if y > int(height) + 1 :
return
if Matrix[x][y] == 1 :
top = tkinter.Toplevel()
top.title("About this application...")
msg = tkinter.Message(top, text="You Lose")
msg.pack()
button = tkinter.Button(top, text="Dismiss", command=top.destroy)
button.pack()
print('Column = {}\nRow = {}'.format(x, y))
else:
n1 = x - 1
n2 = y - 1
for lp in range(3):
for lp2 in range(3):
abutton = root.grid_location(n1, n2)
abutton['relief'] = ['sunken']
# I want to be able to change and select the button here. This was one of my poor attempt
n2 =+ 1
n1 =+ 1
def push(event, self, x, y):
button = event.widget
if Matrix[x][y] == 1 :
print('Column = {}\nRow = {}'.format(x, y))
class MineSweep(tkinter.Frame):
#classmethod
def main(cls, width, height):
window = cls(root, width, height)
'''placemine()'''
root.mainloop()
def __init__(self, master, width, height):
super().__init__(master)
self.__width = width
self.__height = height
self.__build_buttons()
self.grid()
#def sunken(event):
# button = event.widget
# button['relief'] = 'sunken'
def __build_buttons(self):
self.__buttons = []
for y in range(self.__height):
row = []
for x in range(self.__width):
button = tkinter.Button(self, state='disabled')
button.grid(column=x, row=y)
button['text'] = ' '
print(grid.slaves)
self.checked = True
#button['command'] = functools.partial(self.__push, x, y)
button.bind("<Button-3>",
lambda event, arg=x, brg=y: push(event, self, arg, brg))
button['relief'] = 'raised'
button.bind("<Button-1>",
lambda event, arg=x, brg=y: sunken(event, self, arg, brg))
#button['command'] = sunken
row.append(button)
self.__buttons.append(row)
root = tkinter.Tk()
if __name__ == '__main__':
MineSweep.main(int(width), int(height))
You have a few things wrong with your program. First, sunken should be a method on the class. It's very weird to have it outside the class, and then you pass in self as some other argument. It works, but it makes the code very confusing.
That being said, you're actually very close to making this work. You're already saving a reference to each button in a list of lists, so you should be able to get the widget with self.__buttons[y][x]. However, because sunken is not part of the class, and because you named the variable with two underscores, the variable is not accessible to the sunken function.
If you change the variable to have a single underscore instead of a double, your code should work more-or-less exactly as it is (once you fix the syntax and indentation errors). The other solution is to make sunken a method on the class and fix how you call it (remove the self argument, call it as self.sunken), it will work with two underscores.
Frankly, using two underscores has zero practical benefit. Avoid the temptation to use it. At the very least, don't use it until you have your basic logic working, then you can go back and hide attributes you don't want to be exposed.