我需要能够创建 tkinter Canvas 项目的副本,以便可以将图像的副本从原始图像中拖出。我对图像进行了拖动操作,但我似乎无法复制图像项目。任何帮助将不胜感激!谢谢。
编辑:抱歉一开始没有包含我的代码。由于给出的答案,我能够解决这个问题。这是我现在可以使用的代码的精简示例:
from tkinter import *
from PIL import Image, ImageTk
def OnBaseButtonPress(event):
#record the item and its location
drag_data["item"] = c.find_closest(event.x, event.y)
i = c.itemcget(drag_data["item"], "image") #finds the image source of the object
refs.append(i) #keep a reference!
c.create_image(c.coords(drag_data["item"]), image=i, tags="base") #creates an identical object at the position
drag_data["x"] = event.x
drag_data["y"] = event.y
def OnBaseButtonRelease(event):
#reset drag info
drag_data["item"] = None
drag_data["x"] = 0
drag_data["y"] = 0
def OnBaseMotion(event):
#calculate how far the item has moved
delta_x = event.x - drag_data["x"]
delta_y = event.y - drag_data["y"]
#move the object that amount
c.move(drag_data["item"], delta_x, delta_y)
#record the new position
drag_data["x"] = event.x
drag_data["y"] = event.y
#set up canvas and image
root = Tk()
c = Canvas(root, width=800, height=600)
c.pack()
test = ImageTk.PhotoImage(Image.open("test.png"))
c.create_image(400, 300, image=test, tags="base")
refs=[] #used to keep references to images used in functions
#bind mouse keys
c.tag_bind("base", "<ButtonPress-1>", OnBaseButtonPress)
c.tag_bind("base", "<ButtonRelease-1>", OnBaseButtonRelease)
c.tag_bind("base", "<B1-Motion>", OnBaseMotion)
drag_data={"x": 0, "y": 0, "item": None}
mainloop()
最佳答案
您可以获得项目类型canvas.type(item)
,项目配置canvas.itemconfig(item)
,等等
然后您可以重新创建一个相同的对象。
另请参阅:Tkinter - making a second canvas display the contents of another .
关于python - 复制 Tkinter Canvas 项目,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20275893/