我使用的ttkcalendar.py
可以找到in this link.
我已将其改编为Python 3.3
基本上我要做的就是将这个日历小部件输入到我的Tkinter应用程序中,该应用程序工作正常,并且没有问题。
我希望克服的问题是:
bold
。 - 已完成 treeview
中行的高度,因为在prevoius尝试中可以增加字体大小,但行高不会随字体大小而增加。 - 仍然擅长帮助 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relief
的{{1}}?
答案 0 :(得分:12)
也许和你一样,我希望线条能够根据需要进行扩展。但我用下面的代码确认了问题,省略了解决方案(两个样式行)。当我找不到解决方案here和相应的样式页面时,我用Google搜索并找到this。向下滚动到Emiliano的答案,以及下面的一些内容(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')
上面的答案被省略,是展示问题的最小代码示例。这是发布的东西!
编辑1:
要使Calendar小部件可以在其他应用程序中正确导入和使用,它应该使用自定义样式,因此其样式不会影响应用程序中的任何其他树视图。
style.configure('Calendar.Treeview', rowheight=40)
tree = ttk.Treeview(root, style='Calendar.Treeview')
编辑2:
我自己只是在学习ttk风格。为了回答你的解决问题,我在执行上述操作后,在style doc中尝试了以下内容,并在Idle的Shell中进行了以下操作,并在编辑1中进行了两次修改。
>>> 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,也没有看到任何设置效果。也许浮雕适用于列之间的边界。我不知道。 (请注意,更改rowheight立即可用,因此配置为“实时”。)
答案 1 :(得分:4)
我发现Tkinter Font对象有一个metrics()方法,它的高度为&#34; linespace&#34;。这允许动态缩放行高:
try:
from tkinter.font import Font
from tkinter.ttk import Style, Treeview
from tkinter import *
except:
from tkFont import Font
font ttk import Style, Treeview
from Tkinter import *
font=Font(family='Arial', size=20)
font.metrics()
#output: {'ascent': 31, 'descent': 7, 'linespace': 38, 'fixed': 0}
有了这个,你可以用:
获得字体高度font.metrics()['linespace']
#output: 38
然后使用它在Treeview小部件中设置rowheight:
fontheight=font.metrics()['linespace']
style=Style()
style.configure('Calendar.Treeview', font=font, rowheight=fontheight)
tree=Treeview(style='Calendar.Treeview')
更改字体对象参数可以轻松更新Treeview窗口小部件,但是rowheight不会更新,需要重做。例如,使用键盘快捷键缩放字体大小可能如下所示:
def scaleup():
font['size']+=1
style.configure('Calendar.Treeview', rowheight=font.metrics()['linespace'])
def scaledown():
font['size']-=1
style.configure('Calendar.Treeview', rowheight=font.metrics()['linespace'])
tree.bind('<Control-equal>', scaleup)
tree.bind('<Control-minus>', scaledown)
我实际上想用Control-MouseWheel做同样的事情,但还没有弄清楚行为(很高兴听到它是如何工作的)。
希望这很方便。
答案 2 :(得分:1)
如何更改树视图中行的高度,因为在prevoius尝试中可以增加字体大小,但行高不会随字体大小而增加。 - 仍然乐于助人
如果你还在等待这个问题的帮助,那么 way来改变行高,不过Google群组主管说它没有得到官方支持由Tk:
#apply any configuration options
ttk.Style().configure('Treeview',rowheight=30)