【发布时间】：2019-01-02 15:47:09
【问题描述】：
我的目标是让我的新的自定义 GUI 应用程序（它是 tkinter.Frame 的子类）在调整其父窗口大小时在两个方向上独立展开。当我第一次使用原生 tkinter 类在脚本中构建它时，这很有效（请参阅帖子底部的代码），但自从我将它重组为子类（请参阅下面的第一个代码块）后，它坚持保留它的调整大小时的原始比例。也就是说，如果我最大化父窗口，主 GUI 框架只会沿对角线展开，直到它到达屏幕底部。然后右侧窗口的其余部分将保留为空白的灰色空间。
我的问题是：我在导致此问题的类实现中做错了什么？
Here is a screenshot 的问题，下面是用于生成图片中的 GUI 的代码（请原谅丑陋的配色方案，它只是为了在设计/调试时帮助我的框架保持笔直）：
[编辑删除不必要的代码（在这部分中，生成我看到的帧所需的代码比最初想象的要多，所以我不能剪那么多）：]
from tkinter import *
from tkinter import ttk
class CharDbGui(Frame):
# Mage character database object
def __init__(self, root, database=None, *args, **kwargs):
Frame.__init__(self, root, *args, **kwargs)
self.root = root
### Broad layout into color-coded frames first ###
self.rowweight(range(1, 5), [10, 40, 40, 10])
self.colweight(range(1, 4), [25, 75, 25])
top_toolbar = Frame(self, bg="green", height=50, width=1)
top_toolbar.grid(row=1, column=1, columnspan=4, sticky=E+W+N+S)
leftbox = Frame(self, height=1, width=1)
leftbox.grid(row=2, column=1, rowspan=2, sticky=N+S+E+W)
midbox = Frame(self, bg="white", height=1, width=1)
midbox.grid(row=2, column=2, rowspan=2, sticky=N+S+E+W)
righttopbox = Frame(self, bg="black", height=1, width=1)
righttopbox.grid(row=2, column=3, sticky=N+S+E+W)
rightbottombox = Frame(self, bg="purple", height=1, width=1)
rightbottombox.grid(row=3, column=3, sticky=N+S+E+W)
bottombox = Frame(self, bg="orange", height=1, width=1)
bottombox.grid(row=4, column=1, columnspan=4, sticky=N+S+E+W)
entity_type_list = ttk.Treeview(leftbox)
entity_type_list.pack(expand=True, side=LEFT, fill=BOTH)
sb_etl = Scrollbar(leftbox)
sb_etl.pack(side=LEFT, fill=Y)
### Placeholder widgets ###
mainbox = Text(midbox, bg="white")
mainbox.pack(expand=True, fill=BOTH)
reserved = Text(rightbottombox, bg="purple", width=1)
reserved.pack(expand=True, fill=BOTH)
logbox = Text(bottombox, height=6, width=80, bg="orange")
logbox.pack(expand=True, fill=BOTH)
### Create buttons at upper half of right edge ###
# Create frame to contain the buttons
bwidth = 12 # button width
b1 = Button(righttopbox, text="New", width=12)
b1.grid(row=1, column=1, sticky="")
b2 = Button(righttopbox, text="Edit", width=12)
b2.grid(row=2, column=1, sticky="")
b3 = Button(righttopbox, text="Organize", width=12)
b3.grid(row=3, column=1, sticky="")
b4 = Button(righttopbox, text="Templates", width=12)
b4.grid(row=4, column=1, sticky="")
b5 = Button(righttopbox, text="Delete", width=12)
b5.grid(row=5, column=1, sticky="")
# Space buttons vertically
righttopbox.grid_rowconfigure(1, weight=1)
righttopbox.grid_rowconfigure(2, weight=1)
righttopbox.grid_rowconfigure(3, weight=1)
righttopbox.grid_rowconfigure(4, weight=1)
righttopbox.grid_rowconfigure(5, weight=1)
# add self to root
self.pack(expand=True, fill=BOTH)
def rowweight(self, index, weight):
# Adjust weight(s) of row(s).
if type(index) == int: # Singleton case
assert(type(weight) == int)
self.root.grid_rowconfigure(index, weight=weight)
else: # Range case
assert(len(index) == len(weight))
for i, w in zip(index, weight):
self.root.grid_rowconfigure(i, weight=w)
def colweight(self, index, weight):
# Adjust weight(s) of column(s).
if type(index) == int: # Singleton case
assert(type(weight) == int)
self.root.grid_columnconfigure(index, weight=weight)
else: # Range case
assert(len(index) == len(weight))
for i, w in zip(index, weight):
self.root.grid_columnconfigure(i, weight=w)
def fillDefaults(self):
# Placeholder values to test with
self.root.title("Test Database")
# Populate the list with some initial values
initvals_etl = ["Characters", "Items"]
for x in initvals_etl:
self.tree.insert('', END, x, text=str(x))
y = self.tree.insert('', END, "nums", text="Numbers")
for x in range(100):
self.tree.insert(y, END, x, text=str(x))
def launch(self):
self.root.mainloop()
if __name__ == '__main__':
root = Tk()
gui = CharDbGui(root)
root.wm_state('zoomed')
gui.launch()
然后here is a picture 我想要它的样子，下面是用于生成它的非类代码：
[编辑删除不必要的代码：]
from tkinter import *
from tkinter import ttk
### FUNCTION DEFINITIONS ###
def rowweight(index, weight):
# Adjust weight(s) of row(s).
if type(index) == int: # Singleton case
assert(type(weight) == int)
master.grid_rowconfigure(index, weight=weight)
else: # Range case
assert(len(index) == len(weight))
for i, w in zip(index, weight):
master.grid_rowconfigure(i, weight=w)
def colweight(index, weight):
# Adjust weight(s) of column(s).
if type(index) == int: # Singleton case
assert(type(weight) == int)
master.grid_columnconfigure(index, weight=weight)
else: # Range case
assert(len(index) == len(weight))
for i, w in zip(index, weight):
master.grid_columnconfigure(i, weight=w)
### BUILDING THE GUI LAYOUT AND WIDGETS ###
# Create window that frames all our pieces
master = Tk()
master.title("Test Database")
### Broad layout into frames first ###
rowweight(range(1, 5), [10, 40, 40, 10])
colweight(range(1, 4), [25, 75, 25])
top_toolbar = Frame(master, bg="green", height=50, width=1)
top_toolbar.grid(row=1, column=1, columnspan=4, sticky=E+W+N+S)
leftbox = Frame(master, height=1, width=1)
leftbox.grid(row=2, column=1, rowspan=2, sticky=N+S+E+W)
midbox = Frame(master, bg="white", height=1, width=1)
midbox.grid(row=2, column=2, rowspan=2, sticky=N+S+E+W)
righttopbox = Frame(master, bg="black", height=1, width=1)
righttopbox.grid(row=2, column=3, sticky=N+S+E+W)
rightbottombox = Frame(master, bg="purple", height=1, width=1)
rightbottombox.grid(row=3, column=3, sticky=N+S+E+W)
bottombox = Frame(master, bg="orange", height=1, width=1)
bottombox.grid(row=4, column=1, columnspan=4, sticky=N+S+E+W)
master.mainloop()
【问题讨论】：
-
您为根设置了权重，但您需要为框架设置它。将
self.root.grid_columnconfigure(index, weight=weight)更改为self.grid_columnconfigure(index, weight=weight)，行也一样。 -
一共4个地方需要去掉
root属性。 -
如果您尝试解决“框架扩展”问题，我建议您删除尽可能多的小部件。就目前而言，您发布了太多不相关的代码。
-
在
class CharDbGui()中添加这一行self.columnconfigure(2, weight=1)和self.rowconfigure(3, weight=1)。这应该可以解决您的调整大小问题。 -
啊，很好，小说，谢谢。返回并添加“根”内容时意外过度使用它。我为所有不相关的代码道歉；我是新来的，Python 的新手，因为我无法发现问题，所以我不确定什么是相关的。将来我会尽力做得更好，我会回过头来编辑这篇文章，只包含相关部分，因为我知道它们是什么。再次感谢您为我发现了这一点。
标签： python user-interface tkinter expand subclassing