python - ttk.Treeview - 无法更改行高

Question

我正在使用 ttkcalendar.py 可以找到 in this link.

我已经对其进行了调整以用于 Python 3.3

基本上我想做的是将这个日历小部件输入到我的 Tkinter 应用程序中，它运行良好并且没有任何问题。

我希望克服的问题是:

1. 如何更改日历(月、日和日期)的字体大小 - 已完成
2. 如何更改所选日期，使其变为粗体。 - 完成
3. 如何更改 treeview 中行的高度，因为在之前的尝试中可以增加字体大小，但行高不会随着字体大小的增加而增加。 - 仍在等待帮助

提前致谢。

编辑 1:

在下面找到整个程序的代码:

import calendar
import tkinter as Tkinter
import tkinter.font as tkFont
from tkinter import ttk                             #Imports ttk Module

def get_calendar(locale, fwday):
    #Instantiate Proper Calendar Class
    if locale is None:
        return calendar.TextCalendar(fwday)
    else:
        return calendar.LocaleTextCalendar(fwday, locale)

class Calendar(ttk.Frame):
    datetime = calendar.datetime.datetime
    timedelta = calendar.datetime.timedelta

    def __init__(self, master=None, **kw):
        """
        WIDGET-SPECIFIC OPTIONS

            locale, firstweekday, year, month, selectbackground,
            selectforeground
        """
        #Remove Custom Options From kw BEFORE Initializating ttk.Frame
        fwday = kw.pop('firstweekday', calendar.MONDAY)
        year = kw.pop('year', self.datetime.now().year)
        month = kw.pop('month', self.datetime.now().month)
        locale = kw.pop('locale', None)
        sel_bg = kw.pop('selectbackground', '#EEEEEE')
        sel_fg = kw.pop('selectforeground', '#B6333B')

        self._date = self.datetime(year, month, 1)
        self._selection = None                          #No Date Selected

        ttk.Frame.__init__(self, master, **kw)

        self._cal = get_calendar(locale, fwday)

        self.__setup_styles()                           #Creates Custom Styles
        self.__place_widgets()                          #Pack/Grid Used Widgets
        self.__config_calendar()                        #Adjust Calendar Columns & Setup Tags
        #Configure a Canvas & Proper Bindings for Selecting Dates
        self.__setup_selection(sel_bg, sel_fg)

        #Store Item ids - Used for Insertion Later On
        self._items = [self._calendar.insert('', 'end', values='')
                            for _ in range(6)]
        #Insert Dates in the Currently Empty Calendar
        self._build_calendar()

        #Set Minimal Size for Widget
        self._calendar.bind('<Map>', self.__minsize)

    def __setitem__(self, item, value):
        if item in ('year', 'month'):
            raise AttributeError("attribute '%s' is not writeable" % item)
        elif item == 'selectbackground':
            self._canvas['background'] = value
        elif item == 'selectforeground':
            self._canvas.itemconfigure(self._canvas.text, item=value)
        else:
            ttk.Frame.__setitem__(self, item, value)

    def __getitem__(self, item):
        if item in ('year', 'month'):
            return getattr(self._date, item)
        elif item == 'selectbackground':
            return self._canvas['background']
        elif item == 'selectforeground':
            return self._canvas.itemcget(self._canvas.text, 'fill')
        else:
            r = ttk.tclobjs_to_py({item: ttk.Frame.__getitem__(self, item)})
            return r[item]

    def __setup_styles(self):
        #CUSTOM ttk Styles
        style = ttk.Style(self.master)
        arrow_layout = lambda dir: (
            [('Button.focus', {'children': [('Button.%sarrow' % dir, None)]})]
        )
        style.layout('L.TButton', arrow_layout('left'))
        style.layout('R.TButton', arrow_layout('right'))

    def __place_widgets(self):
        #Header Frame & Widgets
        hframe = ttk.Frame(self)
        lbtn = ttk.Button(hframe, style='L.TButton', command=self._prev_month)
        rbtn = ttk.Button(hframe, style='R.TButton', command=self._next_month)
        self._header = ttk.Label(hframe, width=15, anchor='center', font='Arial 20')
        #Main Calendar
        self._calendar = ttk.Treeview(show='', selectmode='none', height='6')
        #Pack The Widgets
        hframe.pack(in_=self, side='top', pady=4, anchor='center')
        lbtn.grid(in_=hframe)
        self._header.grid(in_=hframe, column=1, row=0, padx=12)
        rbtn.grid(in_=hframe, column=2, row=0)
        self._calendar.pack(in_=self, expand=1, fill='both', side='bottom')

    def __config_calendar(self):
        cols = self._cal.formatweekheader(3).split()
        self._calendar['columns'] = cols
        self._calendar.tag_configure('header', background='grey90', font='Arial 20')
        self._calendar.insert('', 'end', values=cols, tag=('header', 'dayFont'))
        #Change Font of dayFont TAG
        self._calendar.tag_configure('dayFont', font='Arial 20')
        #Adjust Column Widths
        font = tkFont.Font(size=20)
        maxwidth = max(font.measure(col) for col in cols)
        for col in cols:
            self._calendar.column(col, width=maxwidth, minwidth=maxwidth, anchor='c')

    def __setup_selection(self, sel_bg, sel_fg):
        self._font = tkFont.Font()
        canvas = Tkinter.Canvas(self._calendar, background=sel_bg, borderwidth=0, highlightthickness=0)
        self._canvas = canvas
        canvas.text = canvas.create_text(0, 0, fill=sel_fg, anchor='c')

        canvas.bind('<ButtonPress-1>', lambda evt: canvas.place_forget())
        self._calendar.bind('<Configure>', lambda evt: canvas.place_forget())
        self._calendar.bind('<ButtonPress-1>', self._pressed)

    def __minsize(self, evt):
        width, height = self._calendar.master.geometry().split('x')
        height = height[:height.index('+')]
        self._calendar.master.minsize(width, height)

    def _build_calendar(self):
        year, month = self._date.year, self._date.month

        #Update Header Text (Month, YEAR)
        header = self._cal.formatmonthname(year, month, 0)
        self._header['text'] = header.title()

        #Update Calendar Showing Dates
        cal = self._cal.monthdayscalendar(year, month)

        for indx, item in enumerate(self._items):
            week = cal[indx] if indx < len(cal) else []
            fmt_week = [('%02d' % day) if day else '' for day in week]
            self._calendar.item(item, values=fmt_week, tag='bodyFont')
            self._calendar.tag_configure('bodyFont', font='Arial 10')        


    def _show_selection(self, text, bbox): #SELECTION FONT
        """Configure canvas for a new selection."""
        x, y, width, height = bbox

        textw = self._font.measure(text)

        canvas = self._canvas
        canvas.configure(width=width, height=height)
        canvas.coords(canvas.text, width - textw, height / 2 - 1)
        canvas.itemconfigure(canvas.text, text=text, font='Arial 15 bold')
        canvas.place(in_=self._calendar, x=x, y=y)

    #Callbacks

    def _pressed(self, evt):
        """Clicked somewhere in the calendar."""
        x, y, widget = evt.x, evt.y, evt.widget
        item = widget.identify_row(y)
        column = widget.identify_column(x)

        if not column or not item in self._items:       #Clicked in the Weekdays Row or Just Outside The Columns
            return

        item_values = widget.item(item)['values']
        if not len(item_values):                        #Row is Empty For This Month
            return

        text = item_values[int(column[1]) - 1]
        if not text:                                    #Date is Empty
            return

        bbox = widget.bbox(item, column)
        if not bbox:                                    #Calendar is not Visible Yet
            return

        #Update & Then Show Selection
        text = '%02d' % text
        self._selection = (text, item, column)
        self._show_selection(text, bbox)

    def _prev_month(self):
        """Updated calendar to show the previous month."""
        self._canvas.place_forget()

        self._date = self._date - self.timedelta(days=1)
        self._date = self.datetime(self._date.year, self._date.month, 1)
        #Reconstruct Calendar
        self._build_calendar()

    def _next_month(self):
        """Update calendar to show the next month."""
        self._canvas.place_forget()

        year, month = self._date.year, self._date.month
        self._date = self._date + self.timedelta(
            days=calendar.monthrange(year, month)[1] + 1)
        self._date = self.datetime(self._date.year, self._date.month, 1)

        self._build_calendar() 

    #Properties
    #-----------------------------------------------------

    @property
    def selection(self):
        """Return a datetime representing the current selected date."""
        if not self._selection:
            return None

        year, month = self._date.year, self._date.month
        return self.datetime(year, month, int(self._selection[0]))

#----------------------------------

编辑 2:

如何更改 Treeview 的 relief？

Answer 1

也许像您一样，我希望线路会根据需要扩展。但是我用下面的代码确认了问题，省略了解决方案(两条样式行)。当我找不到解决方案时here和相应的样式页面，我用谷歌搜索并找到了this .向下滚动到 Emiliano 的回答，以及以下部分内容(还有一个缩进选项)。

import tkinter as tk
from tkinter import ttk

root = tk.Tk()
root.geometry('500x200')
style = ttk.Style(root)
style.configure('Treeview', rowheight=40)  #SOLUTION
tree = ttk.Treeview(root)
tree.insert('', 0, text='Line 1 of many XXX', tags='T')
tree.insert('', 1, text='Line 2 of many XXX', tags='T')
tree.insert('', 2, text='Line 3 of many XXX', tags='T')
tree.column('#0', stretch=True)
tree.tag_configure('T', font='Arial 20')
tree.pack(fill='x')

上面省略了答案，是展示问题的最小代码示例。这就是要发布的内容!

编辑 1:

要使日历小部件在另一个应用程序中正确导入和使用，它应该使用自定义样式，这样它的样式就不会影响应用程序中的任何其他 TreeView 。

style.configure('Calendar.Treeview', rowheight=40)
tree = ttk.Treeview(root, style='Calendar.Treeview')

编辑 2:

我自己正在学习 ttk 样式。为了回答你的救济问题，我去了这个 style doc并在运行上述命令后在 Idle 的 Shell 中尝试以下操作，并在编辑 1 中进行了两项修改。

>>> style.layout('Calendar.Treeview')
[('Treeview.field', {'sticky': 'nswe', 'children': [('Treeview.padding',
{'sticky': 'nswe', 'children': [('Treeview.treearea', {'sticky': 'nswe'})]})], 'border': '1'})]
>>> style.element_options('Calendar.Treeview.border')
('-relief',)
>>> style.lookup('Calendar.Treeview.border', 'relief')
''
>>> style.configure('Calendar.Treeview.border', relief='raised')
{}

我没有看到任何边框，也没有看到设置的任何效果。也许救济适用于列之间的边界。我不知道。 (请注意，更改行高会立即可用，因此配置是“实时”的。)