工作示例：
在 Windows 和 Linux 中測試和工作
更新：我已經更新了代碼，一切都在 Windows 和 Linux 中運行，盡管在 Windows 中，藍色透明窗口在從右到左調整大小時會抖動，從左到右很好。在 Linux 中不會發生抖動，有人知道為什么嗎？如果有人可以讓我知道下面的代碼是否適用于 MacOS，那也很棒。
import tkinter as tk
import tkinter.ttk as ttk
import tkinter.font as tkfont
class Treeview(ttk.Treeview):
def __init__(self, parent, **kwargs):
super().__init__(parent, **kwargs)
self.root = parent.winfo_toplevel()
self.selected_items = []
self.origin_x = \
self.origin_y = \
self.active_item = \
self.origin_item = None
sw = self.select_window = tk.Toplevel(self.root)
sw.wait_visibility(self.root)
sw.withdraw()
sw.config(bg='#00aaff')
sw.overrideredirect(True)
sw.wm_attributes('-alpha', 0.3)
sw.wm_attributes("-topmost", True)
self.font = tkfont.nametofont('TkTextFont')
self.style = parent.style
self.linespace = self.font.metrics('linespace') + 5
self.bind('<Escape>', self.tags_reset)
self.bind('<Button-1>', self.button_press)
self.bind('<ButtonRelease-1>', self.button_release)
def fixed_map(self, option):
return [elm for elm in self.style.map("Treeview", query_opt=option) if elm[:2] != ("!disabled", "!selected")]
def tag_add(self, tags, item):
self.tags_update('add', tags, item)
def tag_remove(self, tags, item=None):
self.tags_update('remove', tags, item)
def tag_replace(self, old, new, item=None):
for item in (item,) if item else self.tag_has(old):
self.tags_update('add', new, item)
self.tags_update('remove', old, item)
def tags_reset(self, _=None):
self.tag_remove(('selected', '_selected'))
self.tag_replace('selected_odd', 'odd')
self.tag_replace('selected_even', 'even')
def tags_update(self, opt, tags, item):
def get_items(node):
items.append(node)
for node in self.get_children(node):
get_items(node)
if not tags:
return
elif isinstance(tags, str):
tags = (tags,)
if not item:
items = []
for child in self.get_children():
get_items(child)
else:
items = (item,)
for item in items:
_tags = list(self.item(item, 'tags'))
for _tag in tags:
if opt == 'add':
if _tag not in _tags:
_tags.append(_tag)
elif opt == 'remove':
if _tag in _tags:
_tags.pop(_tags.index(_tag))
self.item(item, tags=_tags)
def button_press(self, event):
self.origin_x, self.origin_y = event.x, event.y
item = self.origin_item = self.active_item = self.identify('item', event.x, event.y)
sw = self.select_window
sw.geometry('0x0+0+0')
sw.deiconify()
self.bind('<Motion>', self.set_selected)
if not item:
if not event.state & 1 << 2:
self.tags_reset()
return
if event.state & 1 << 2:
if self.tag_has('odd', item):
self.tag_add('selected', item)
self.tag_replace('odd', 'selected_odd', item)
elif self.tag_has('even', item):
self.tag_add('selected', item)
self.tag_replace('even', 'selected_even', item)
elif self.tag_has('selected_odd', item):
self.tag_replace('selected_odd', 'odd', item)
elif self.tag_has('selected_even', item):
self.tag_replace('selected_even', 'even', item)
else:
self.tags_reset()
self.tag_add('selected', item)
if self.tag_has('odd', item):
self.tag_replace('odd', 'selected_odd', item)
elif self.tag_has('even', item):
self.tag_replace('even', 'selected_even', item)
def button_release(self, _):
self.select_window.withdraw()
self.unbind('<Motion>')
for item in self.selected_items:
if self.tag_has('odd', item) or self.tag_has('even', item):
self.tag_remove(('selected', '_selected'), item)
else:
self.tag_replace('_selected', 'selected', item)
def get_selected(self):
return sorted(self.tag_has('selected_odd') + self.tag_has('selected_even'))
def set_selected(self, event):
def selected_items():
items = []
window_y = int(self.root.geometry().rsplit('+', 1)[-1])
titlebar_height = self.root.winfo_rooty() - window_y
sw = self.select_window
start = sw.winfo_rooty() - titlebar_height - window_y
end = start + sw.winfo_height()
while start < end:
start += 1
node = self.identify('item', event.x, start)
if not node or node in items:
continue
items.append(node)
return sorted(items)
def set_row_colors():
items = self.selected_items = selected_items()
for item in items:
if self.tag_has('selected', item):
if item == self.origin_item:
continue
if self.tag_has('selected_odd', item):
self.tag_replace('selected_odd', 'odd', item)
elif self.tag_has('selected_even', item):
self.tag_replace('selected_even', 'even', item)
elif self.tag_has('odd', item):
self.tag_replace('odd', 'selected_odd', item)
elif self.tag_has('even', item):
self.tag_replace('even', 'selected_even', item)
self.tag_add('_selected', item)
for item in self.tag_has('_selected'):
if item not in items:
self.tag_remove('_selected', item)
if self.tag_has('odd', item):
self.tag_replace('odd', 'selected_odd', item)
elif self.tag_has('even', item):
self.tag_replace('even', 'selected_even', item)
elif self.tag_has('selected_odd', item):
self.tag_replace('selected_odd', 'odd', item)
elif self.tag_has('selected_even', item):
self.tag_replace('selected_even', 'even', item)
root_x = self.root.winfo_rootx()
if event.x < self.origin_x:
width = self.origin_x - event.x
coord_x = root_x + event.x
else:
width = event.x - self.origin_x
coord_x = root_x + self.origin_x
if coord_x+width > root_x+self.winfo_width():
width -= (coord_x+width)-(root_x+self.winfo_width())
elif self.winfo_pointerx() < root_x:
width -= (root_x - self.winfo_pointerx())
coord_x = root_x
root_y = self.winfo_rooty()
if event.y < self.origin_y:
height = self.origin_y - event.y
coord_y = root_y + event.y
else:
height = event.y - self.origin_y
coord_y = root_y + self.origin_y
if coord_y+height > root_y+self.winfo_height():
height -= (coord_y+height)-(root_y+self.winfo_height())
elif self.winfo_pointery() < root_y + self.linespace:
height -= (root_y - self.winfo_pointery() + self.linespace)
coord_y = root_y + self.linespace
if height < 0:
height = self.winfo_rooty() + self.origin_y
set_row_colors()
self.select_window.geometry(f'{width}x{height}+{coord_x}+{coord_y}')
class App(tk.Tk):
def __init__(self):
super().__init__()
def print_selected_items(_):
print(tv.get_selected())
return 'break'
style = self.style = ttk.Style()
tv = Treeview(self)
style.map("Treeview", foreground=tv.fixed_map("foreground"), background=tv.fixed_map("background"))
tv.heading('#0', text='Name')
tv.tag_configure('odd', background='#ffffff')
tv.tag_configure('even', background='#aaaaaa')
tv.tag_configure('selected_odd', background='#b0eab2')
tv.tag_configure('selected_even', background='#25a625')
color_tag = 'odd'
for idx in range(0, 4):
# Populating the tree with test data.
color_tag = 'even' if color_tag == 'odd' else 'odd'
tv.insert('', idx, f'{idx}', text=f'Item {idx+1}', open=1, tags=(color_tag,))
color_tag = 'even' if color_tag == 'odd' else 'odd'
iid = f'{idx}_{0}'
tv.insert(f'{idx}', '0', iid, text=f'Menu {idx+1}', open=1, tags=(color_tag,))
for i in range(0, 5):
color_tag = 'even' if color_tag == 'odd' else 'odd'
tv.insert(iid, i, f'{iid}_{i}', text=f'Sub item {i+1}', tags=(color_tag,))
color_tag = 'even' if color_tag == 'odd' else 'odd'
tv.insert(iid, 5, f'{iid}_{5}', text=f'Another Menu {idx+1}', open=1, tags=(color_tag,))
iid = f'{iid}_{5}'
for i in range(0, 3):
color_tag = 'even' if color_tag == 'odd' else 'odd'
tv.insert(iid, i, f'{iid}_{i}', text=f'Sub item {i+1}', tags=(color_tag,))
self.title('Treeview Demo')
self.geometry('275x650+3000+250')
self.rowconfigure(0, weight=1)
self.columnconfigure(0, weight=1)
tv.config(selectmode="none")
tv.grid(sticky='NSEW')
button = ttk.Button(self, text='Get Selected Items')
button.grid()
button.bind('<Button-1>', print_selected_items)
def main():
app = App()
app.mainloop()
if __name__ == '__main__':
main()
