tkinter-canvas

问题 I've been trying to make a function run when I click a rectangle on a tk canvas. Here is the code: from tkinter import * window = Tk() c = Canvas(window, width=300, height=300) def clear(): canvas.delete(ALL) playbutton = c.create_rectangle(75, 25, 225, 75, fill="red") playtext = c.create_text(150, 50, text="Play", font=("Papyrus", 26), fill='blue') c.pack() window.mainloop() does anyone know what I should do? 回答1: You can add tags on the items you want to bind events to. The event you want

问题 I've been trying to make a function run when I click a rectangle on a tk canvas. Here is the code: from tkinter import * window = Tk() c = Canvas(window, width=300, height=300) def clear(): canvas.delete(ALL) playbutton = c.create_rectangle(75, 25, 225, 75, fill="red") playtext = c.create_text(150, 50, text="Play", font=("Papyrus", 26), fill='blue') c.pack() window.mainloop() does anyone know what I should do? 回答1: You can add tags on the items you want to bind events to. The event you want

问题 So I have this code which draws a simple rectangle: from tkinter import * root = Tk() canvas = Canvas(root, width = 500, height = 500) canvas.pack() canvas.create_rectangle(100, 100, 400, 400, fill='black') mainloop() Now I've been looking everywhere, and can't seem to find a way to change the fill colour at all, and ideally I'd like to be able to do this on click. I'm actually going to be using this to change the colour of hexagons generated by a function I wrote that works fine using create

问题 So I have this code which draws a simple rectangle: from tkinter import * root = Tk() canvas = Canvas(root, width = 500, height = 500) canvas.pack() canvas.create_rectangle(100, 100, 400, 400, fill='black') mainloop() Now I've been looking everywhere, and can't seem to find a way to change the fill colour at all, and ideally I'd like to be able to do this on click. I'm actually going to be using this to change the colour of hexagons generated by a function I wrote that works fine using create

问题 I've been working with the turtle module and want to use it as a starting point to work on a simple image recognition program that could recognize numbers/letters. I need to be able to save the turtle as an image I could manipulate- recaling, rotating, etc. to try to regulate the images. I've been researching for hours and cannot seem to find anything that works. I have discovered how to save the Turtle output as a Tkinter canvas: import turtle t = turtle.Turtle() # Draw something canvas = t

问题 I've created a white text in the center of my canvas, but my background is very colorful and one part of it is a very light color, so some corners of my sentence doesn't appear. I can't find any options to set borders or an outline. what could I do? 回答1: Create a text item, get the bounding box of that item, use that data to create a rectangle, and raise the text above the rectangle. import Tkinter as tk root = tk.Tk() canvas = tk.Canvas(root, background="white") canvas.pack(fill="both",

问题 I am trying to get rounded buttons for my script using tkinter. I found the following code: from tkinter import * import tkinter as tk class CustomButton(tk.Canvas): def __init__(self, parent, width, height, color, command=None): tk.Canvas.__init__(self, parent, borderwidth=1, relief="raised", highlightthickness=0) self.command = command padding = 4 id = self.create_oval((padding,padding, width+padding, height+padding), outline=color, fill=color) (x0,y0,x1,y1) = self.bbox("all") width = (x1

问题 Hello I am making a table with a header for text to name the columns, cells to store data, and scrolling. The problem I'm having is that my Table is not displaying correctly. What should happen is the Headers should display above with no other space below them. (other than the small padding I added) The cells display correctly right below the headers. The scrolling works for the cells in the y direction. The scrolling also works in the x direction for both the cells and headers. The function

问题 Firstly I should state that I am aware of other posts on this site with similar names. I have been through them but they do not, so far as I can tell, address my problem. I would actually say my problem is far more simple than most of those examples. Simply put, I wanted to create a transparent rectangle that I could use to show a drag select area. When I found out that tkinter doesn't do transparency, I decided on the idea of simply drawing four lines to create the appearance of a rectangle

问题 Firstly I should state that I am aware of other posts on this site with similar names. I have been through them but they do not, so far as I can tell, address my problem. I would actually say my problem is far more simple than most of those examples. Simply put, I wanted to create a transparent rectangle that I could use to show a drag select area. When I found out that tkinter doesn't do transparency, I decided on the idea of simply drawing four lines to create the appearance of a rectangle