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ScrolledList.py
from Tkinter import * from idlelib import macosxSupport 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 macosxSupport.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): root = Tk() root.title("Test ScrolledList") width, height, x, y = list(map(int, re.split('[x+]', parent.geometry()))) root.geometry("+%d+%d"%(x, y + 150)) 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(root) for i in range(30): scrolled_list.append("Item %02d" % i) root.mainloop() if __name__ == '__main__': from idlelib.idle_test.htest import run run(_scrolled_list)
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