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Python Tkinter - using dynamic names with labels?

75 New Member
I have application which creates data table from loaded data, table cells are created using labels.

I am trying to do following: when the mouse cursor is over the one label it will be highlighted using brighter background color

Expand|Select|Wrap|Line Numbers
  1. def mouse_enter(event):
  2.    self.label["bg"] = "#FFFFFF"
  3.  
  4. def mouse_leave(event):
  5.    self.label["bg"] = "#888888"
  6.  
  7. index = 0
  8. while index != 10:
  9.    self.label = Label(frame_x, bg="#888888", text=str(temp[index][0]))
  10.    self.label.place(x=10, y=35 + (index * 25), width=100)
  11.    self.label.bind ("Enter", mouse_enter)
  12.    self.label.bind ("Leave", mouse_leave)
  13.    index += 1
  14.  
so in the code all labels now get the same name, and ofcourse now they all are highlighted (sorry, only the last one) when mouse cursor will be over any label... but how to name these labels dynamically? (ofcourse the amount of labels isn't 10 in my application, it's based on the amount of data needed to display)
Mar 3 '08 #1
1 2211
dazzler
75 New Member
solved the problem... not only the dynamic names was problematic but also application needed to send additional info with the event handler...

I'll paste my solution if someone could find this useful ^^


Expand|Select|Wrap|Line Numbers
  1. def mouse_enter(self, event, index):
  2.    d["label_a%s" %index]["bg"] = "#FFFFFF"
  3.    d["label_b%s" %index]["bg"] = "#FFFFFF"
  4.  
  5. def mouse_leave(self, event, index):
  6.    d["label_a%s" %index]["bg"] = "#888888"
  7.    d["label_b%s" %index]["bg"] = "#888888"
  8.  
  9. d = {}  #dictionary
  10.  
  11. index = 0
  12. while index != 10:
  13.  
  14.    def handler_enter (event, self=self, index=index):
  15.       return mouse_enter (self, event, index)
  16.    def handler_leave (event, self=self, index=index):
  17.       return mouse_leave (self, event, index)
  18.  
  19.    d["label_a%s" %index] = Label(frame_x, bg="#888888", text=str(temp[index][0]))
  20.    d["label_a%s" %index].place(x=10, y=35 + (index * 25), width=100)
  21.    d["label_a%s" %index].bind ("Enter", handler_enter)
  22.    d["label_a%s" %index].bind ("Leave", handler_leave)
  23.  
  24.    d["label_b%s" %index] = Label(frame_x, bg="#888888", text=str(temp[index][1]))
  25.    d["label_b%s" %index].place(x=110, y=35 + (index * 25), width=100)
  26.    d["label_b%s" %index].bind ("Enter", handler_enter)
  27.    d["label_b%s" %index].bind ("Leave", handler_leave)
  28.  
  29.    index += 1
  30.  
Mar 4 '08 #2

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