145 lines
4.3 KiB
Python
145 lines
4.3 KiB
Python
from tkinter import *
|
|
from idlelib import macosx
|
|
from tkinter.ttk import Scrollbar
|
|
|
|
class ScrolledList:
|
|
|
|
default = "(None)"
|
|
|
|
def __init__(self, master, **options):
|
|
# Create top frame, with scrollbar and listbox
|
|
self.master = master
|
|
self.frame = frame = Frame(master)
|
|
self.frame.pack(fill="both", expand=1)
|
|
self.vbar = vbar = Scrollbar(frame, name="vbar")
|
|
self.vbar.pack(side="right", fill="y")
|
|
self.listbox = listbox = Listbox(frame, exportselection=0,
|
|
background="white")
|
|
if options:
|
|
listbox.configure(options)
|
|
listbox.pack(expand=1, fill="both")
|
|
# Tie listbox and scrollbar together
|
|
vbar["command"] = listbox.yview
|
|
listbox["yscrollcommand"] = vbar.set
|
|
# Bind events to the list box
|
|
listbox.bind("<ButtonRelease-1>", self.click_event)
|
|
listbox.bind("<Double-ButtonRelease-1>", self.double_click_event)
|
|
if macosx.isAquaTk():
|
|
listbox.bind("<ButtonPress-2>", self.popup_event)
|
|
listbox.bind("<Control-Button-1>", self.popup_event)
|
|
else:
|
|
listbox.bind("<ButtonPress-3>", self.popup_event)
|
|
listbox.bind("<Key-Up>", self.up_event)
|
|
listbox.bind("<Key-Down>", self.down_event)
|
|
# Mark as empty
|
|
self.clear()
|
|
|
|
def close(self):
|
|
self.frame.destroy()
|
|
|
|
def clear(self):
|
|
self.listbox.delete(0, "end")
|
|
self.empty = 1
|
|
self.listbox.insert("end", self.default)
|
|
|
|
def append(self, item):
|
|
if self.empty:
|
|
self.listbox.delete(0, "end")
|
|
self.empty = 0
|
|
self.listbox.insert("end", str(item))
|
|
|
|
def get(self, index):
|
|
return self.listbox.get(index)
|
|
|
|
def click_event(self, event):
|
|
self.listbox.activate("@%d,%d" % (event.x, event.y))
|
|
index = self.listbox.index("active")
|
|
self.select(index)
|
|
self.on_select(index)
|
|
return "break"
|
|
|
|
def double_click_event(self, event):
|
|
index = self.listbox.index("active")
|
|
self.select(index)
|
|
self.on_double(index)
|
|
return "break"
|
|
|
|
menu = None
|
|
|
|
def popup_event(self, event):
|
|
if not self.menu:
|
|
self.make_menu()
|
|
menu = self.menu
|
|
self.listbox.activate("@%d,%d" % (event.x, event.y))
|
|
index = self.listbox.index("active")
|
|
self.select(index)
|
|
menu.tk_popup(event.x_root, event.y_root)
|
|
|
|
def make_menu(self):
|
|
menu = Menu(self.listbox, tearoff=0)
|
|
self.menu = menu
|
|
self.fill_menu()
|
|
|
|
def up_event(self, event):
|
|
index = self.listbox.index("active")
|
|
if self.listbox.selection_includes(index):
|
|
index = index - 1
|
|
else:
|
|
index = self.listbox.size() - 1
|
|
if index < 0:
|
|
self.listbox.bell()
|
|
else:
|
|
self.select(index)
|
|
self.on_select(index)
|
|
return "break"
|
|
|
|
def down_event(self, event):
|
|
index = self.listbox.index("active")
|
|
if self.listbox.selection_includes(index):
|
|
index = index + 1
|
|
else:
|
|
index = 0
|
|
if index >= self.listbox.size():
|
|
self.listbox.bell()
|
|
else:
|
|
self.select(index)
|
|
self.on_select(index)
|
|
return "break"
|
|
|
|
def select(self, index):
|
|
self.listbox.focus_set()
|
|
self.listbox.activate(index)
|
|
self.listbox.selection_clear(0, "end")
|
|
self.listbox.selection_set(index)
|
|
self.listbox.see(index)
|
|
|
|
# Methods to override for specific actions
|
|
|
|
def fill_menu(self):
|
|
pass
|
|
|
|
def on_select(self, index):
|
|
pass
|
|
|
|
def on_double(self, index):
|
|
pass
|
|
|
|
|
|
def _scrolled_list(parent): # htest #
|
|
top = Toplevel(parent)
|
|
width, height, x, y = list(map(int, re.split('[x+]', parent.geometry())))
|
|
top.geometry("+%d+%d"%(x+200, y + 175))
|
|
class MyScrolledList(ScrolledList):
|
|
def fill_menu(self): self.menu.add_command(label="right click")
|
|
def on_select(self, index): print("select", self.get(index))
|
|
def on_double(self, index): print("double", self.get(index))
|
|
|
|
scrolled_list = MyScrolledList(top)
|
|
for i in range(30):
|
|
scrolled_list.append("Item %02d" % i)
|
|
|
|
if __name__ == '__main__':
|
|
# At the moment, test_scrolledlist merely creates instance, like htest.
|
|
from idlelib.idle_test.htest import run
|
|
run(_scrolled_list)
|