projects / OpenSPARC-T2-DV / blame
| Commit | Line | Data |
|---|---|---|
| 86530b38 AT |
1 | from Tkinter import * |
| 2 | ||
| 3 | class ScrolledList: | |
| 4 | ||
| 5 | default = "(None)" | |
| 6 | ||
| 7 | def __init__(self, master, **options): | |
| 8 | # Create top frame, with scrollbar and listbox | |
| 9 | self.master = master | |
| 10 | self.frame = frame = Frame(master) | |
| 11 | self.frame.pack(fill="both", expand=1) | |
| 12 | self.vbar = vbar = Scrollbar(frame, name="vbar") | |
| 13 | self.vbar.pack(side="right", fill="y") | |
| 14 | self.listbox = listbox = Listbox(frame, exportselection=0, | |
| 15 | background="white") | |
| 16 | if options: | |
| 17 | listbox.configure(options) | |
| 18 | listbox.pack(expand=1, fill="both") | |
| 19 | # Tie listbox and scrollbar together | |
| 20 | vbar["command"] = listbox.yview | |
| 21 | listbox["yscrollcommand"] = vbar.set | |
| 22 | # Bind events to the list box | |
| 23 | listbox.bind("<ButtonRelease-1>", self.click_event) | |
| 24 | listbox.bind("<Double-ButtonRelease-1>", self.double_click_event) | |
| 25 | listbox.bind("<ButtonPress-3>", self.popup_event) | |
| 26 | listbox.bind("<Key-Up>", self.up_event) | |
| 27 | listbox.bind("<Key-Down>", self.down_event) | |
| 28 | # Mark as empty | |
| 29 | self.clear() | |
| 30 | ||
| 31 | def close(self): | |
| 32 | self.frame.destroy() | |
| 33 | ||
| 34 | def clear(self): | |
| 35 | self.listbox.delete(0, "end") | |
| 36 | self.empty = 1 | |
| 37 | self.listbox.insert("end", self.default) | |
| 38 | ||
| 39 | def append(self, item): | |
| 40 | if self.empty: | |
| 41 | self.listbox.delete(0, "end") | |
| 42 | self.empty = 0 | |
| 43 | self.listbox.insert("end", str(item)) | |
| 44 | ||
| 45 | def get(self, index): | |
| 46 | return self.listbox.get(index) | |
| 47 | ||
| 48 | def click_event(self, event): | |
| 49 | self.listbox.activate("@%d,%d" % (event.x, event.y)) | |
| 50 | index = self.listbox.index("active") | |
| 51 | self.select(index) | |
| 52 | self.on_select(index) | |
| 53 | return "break" | |
| 54 | ||
| 55 | def double_click_event(self, event): | |
| 56 | index = self.listbox.index("active") | |
| 57 | self.select(index) | |
| 58 | self.on_double(index) | |
| 59 | return "break" | |
| 60 | ||
| 61 | menu = None | |
| 62 | ||
| 63 | def popup_event(self, event): | |
| 64 | if not self.menu: | |
| 65 | self.make_menu() | |
| 66 | menu = self.menu | |
| 67 | self.listbox.activate("@%d,%d" % (event.x, event.y)) | |
| 68 | index = self.listbox.index("active") | |
| 69 | self.select(index) | |
| 70 | menu.tk_popup(event.x_root, event.y_root) | |
| 71 | ||
| 72 | def make_menu(self): | |
| 73 | menu = Menu(self.listbox, tearoff=0) | |
| 74 | self.menu = menu | |
| 75 | self.fill_menu() | |
| 76 | ||
| 77 | def up_event(self, event): | |
| 78 | index = self.listbox.index("active") | |
| 79 | if self.listbox.selection_includes(index): | |
| 80 | index = index - 1 | |
| 81 | else: | |
| 82 | index = self.listbox.size() - 1 | |
| 83 | if index < 0: | |
| 84 | self.listbox.bell() | |
| 85 | else: | |
| 86 | self.select(index) | |
| 87 | self.on_select(index) | |
| 88 | return "break" | |
| 89 | ||
| 90 | def down_event(self, event): | |
| 91 | index = self.listbox.index("active") | |
| 92 | if self.listbox.selection_includes(index): | |
| 93 | index = index + 1 | |
| 94 | else: | |
| 95 | index = 0 | |
| 96 | if index >= self.listbox.size(): | |
| 97 | self.listbox.bell() | |
| 98 | else: | |
| 99 | self.select(index) | |
| 100 | self.on_select(index) | |
| 101 | return "break" | |
| 102 | ||
| 103 | def select(self, index): | |
| 104 | self.listbox.focus_set() | |
| 105 | self.listbox.activate(index) | |
| 106 | self.listbox.selection_clear(0, "end") | |
| 107 | self.listbox.selection_set(index) | |
| 108 | self.listbox.see(index) | |
| 109 | ||
| 110 | # Methods to override for specific actions | |
| 111 | ||
| 112 | def fill_menu(self): | |
| 113 | pass | |
| 114 | ||
| 115 | def on_select(self, index): | |
| 116 | pass | |
| 117 | ||
| 118 | def on_double(self, index): | |
| 119 | pass | |
| 120 | ||
| 121 | ||
| 122 | def test(): | |
| 123 | root = Tk() | |
| 124 | root.protocol("WM_DELETE_WINDOW", root.destroy) | |
| 125 | class MyScrolledList(ScrolledList): | |
| 126 | def fill_menu(self): self.menu.add_command(label="pass") | |
| 127 | def on_select(self, index): print "select", self.get(index) | |
| 128 | def on_double(self, index): print "double", self.get(index) | |
| 129 | s = MyScrolledList(root) | |
| 130 | for i in range(30): | |
| 131 | s.append("item %02d" % i) | |
| 132 | return root | |
| 133 | ||
| 134 | def main(): | |
| 135 | root = test() | |
| 136 | root.mainloop() | |
| 137 | ||
| 138 | if __name__ == '__main__': | |
| 139 | main() |