目前我的程序將打開一個圖像，使用該圖像你可以點擊它的任何地方，它會返回你點擊位置的像素坐標。從這些坐標中，您可以輸入一些文本，它會向您顯示編輯后的圖像。然而，我想知道是否有一種方法可以在視覺上幫助用戶向他們顯示他們點擊的位置。這是我當前用于打開圖像并單擊它以返回坐標的代碼。我正在使用 tkinter，我知道我應該從 tkinter import * 中退出，但現在為時已晚：/。 ### Function to open files ###img_window = tkinter.PanedWindow(top, orient='vertical')def file_opener(): global actual_img global original_img top.filename = filedialog.askopenfilename(initialdir="*/Images/", title ="Select an Image", filetypes=((".png", "*.png"),(".jpg", "*.jpg"))) original_img = Image.open(top.filename) #################### CLICK LOCATION OF WHERE YOU WANT TO ADD TEXT #################### event2canvas = lambda e, c: (c.canvasx(e.x), c.canvasy(e.y)) imgApp = tkinter.Toplevel() # creating an img var of my original image img = ImageTk.PhotoImage(original_img) #setting up a tkinter canvas with scrollbars frame = tkinter.Frame(imgApp, bd=2, relief=tkinter.SUNKEN) frame.grid_rowconfigure(0, weight=1) frame.grid_columnconfigure(0, weight=1) xscroll = tkinter.Scrollbar(frame, orient=tkinter.HORIZONTAL) xscroll.grid(row=1, column=0, sticky=tkinter.E+tkinter.W) yscroll = tkinter.Scrollbar(frame) yscroll.grid(row=0, column=1, sticky=tkinter.N+tkinter.S) canvas = tkinter.Canvas(frame, bd=0, xscrollcommand=xscroll.set, yscrollcommand=yscroll.set, width = img.width(), height = img.height()) canvas.grid(row=0, column=0, sticky=tkinter.N+tkinter.S+tkinter.E+tkinter.W) xscroll.config(command=canvas.xview) yscroll.config(command=canvas.yview) frame.pack(fill=tkinter.BOTH, expand = 1) # adding the image to canvas canvas.create_image(0,0,image=img,anchor="nw") canvas.config(scrollregion=canvas.bbox(tkinter.ALL)) #function to be called when mouse is clicked def returncoords(event): global cx, cy #outputting x and y coords to console cx, cy = event2canvas(event, canvas) return cx, cy
1 回答
千巷貓影
TA貢獻1829條經驗 獲得超7個贊
這是我的解決方案：當圖像被打開時，它會顯示 tcross 光標，當用戶單擊時它會更改光標，直到用戶釋放。
canvas.create_image(0,0,image=img,anchor="nw")
canvas.config(cursor = "tcross")
canvas.config(scrollregion=canvas.bbox(tkinter.ALL))
# function to be called when mouse is clicked
def returnCoords(event):
global cx, cy
# change the cursor when button is held / click so user knows they selected a coordinate
canvas.config(cursor = "dotbox")
cx, cy = event2canvas(event, canvas)
return cx, cy
def returnCursor(event):
canvas.config(cursor = "arrow")
time.sleep(.7)
imgApp.destroy()
# mouseclick event / release
canvas.bind("<ButtonPress-1>", returnCoords)
canvas.bind("<ButtonRelease-1>", returnCursor)
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