用 tkinter 写的字体选择器

XiaoPaiShen

1. from tkinter import Tk, Frame, LabelFrame, OptionMenu, Checkbutton, Scale, Label, Button, StringVar, IntVar, BooleanVar, font
   
2. from tkinter import ttk
   
3. 
   
4. class Font_Selector:
   
5.     def __init__(self):        
   
6.         self.root = Tk()        
   
7.         self.root.title('Font Selector')
   
8.         self.root.geometry('600x400')
   
9. 
   
10.         self.font_var = {'family': StringVar(), 'size' : IntVar(), 'weight' : StringVar(), 'slant' : StringVar(), 'underline' : BooleanVar(), 'overstrike' : BooleanVar()}
    
11.         self.initial_font_var()
    
12. 
    
13.         self.legend = StringVar()
    
14.         self.legend_font = font.Font()
    
15.         self.build_legend_font()
    
16. 
    
17.     def initial_font_var(self, default=None):
    
18.         if not default:
    
19.             default = font.nametofont("TkDefaultFont")
    
20. 
    
21.         self.font_var['family'].set(default.cget('family'))
    
22.         self.font_var['size'].set(default.cget('size'))
    
23.         self.font_var['weight'].set(default.cget('weight'))
    
24.         self.font_var['slant'].set(default.cget('slant'))
    
25.         self.font_var['underline'].set(default.cget('underline'))
    
26.         self.font_var['overstrike'].set(default.cget('overstrike'))
    
27. 
    
28.     def build_legend_font(self):
    
29.         self.legend_font.config(family=self.font_var['family'].get())
    
30.         self.legend_font.config(size=self.font_var['size'].get())
    
31.         self.legend_font.config(weight=self.font_var['weight'].get())
    
32.         self.legend_font.config(slant=self.font_var['slant'].get())
    
33.         self.legend_font.config(underline=self.font_var['underline'].get())
    
34.         self.legend_font.config(overstrike=self.font_var['overstrike'].get())
    
35. 
    
36.     def build_setup(self):
    
37.         frame_setup = Frame(self.root, padx=5, pady=5)
    
38.         frame_setup.pack(fill='x')
    
39.         frame_setup.columnconfigure(1, weight=1)
    
40.         frame_setup.rowconfigure(1, weight=1)      
    
41. 
    
42.         frame_family = LabelFrame(frame_setup, text='families')
    
43.         frame_family.grid(row=0, column=0, padx=5, pady=5)
    
44. 
    
45.         font_families = font.families()
    
46.                
    
47.         self.families = ttk.Combobox(frame_family, name='family', state="readonly", textvariable=self.font_var['family'], values=font_families)
    
48.         self.families.grid(padx=10, pady=10, sticky='ew')
    
49. 
    
50.         frame_style = LabelFrame(frame_setup, text='style')
    
51.         frame_style.grid(row=0, column=1, sticky='ew', padx= 5)
    
52.         frame_style.columnconfigure(0, weight=1)
    
53.         frame_style.columnconfigure(1, weight=1)
    
54.         frame_style.columnconfigure(2, weight=1)
    
55.         frame_style.columnconfigure(3, weight=1)
    
56. 
    
57.         self.weight = Checkbutton(frame_style, name='weight', text='Bold', variable=self.font_var['weight'], onvalue='bold', offvalue='normal', command=lambda event='weight' : self.font_changed(event))
    
58.         self.weight.grid(row=0, column=0, padx=10, pady=8, sticky='ew')
    
59.         self.slant = Checkbutton(frame_style, name='slant', text='Italic', variable=self.font_var['slant'], onvalue='italic', offvalue='roman', command=lambda event='slant' : self.font_changed(event))
    
60.         self.slant.grid(row=0, column=1, padx=10, pady=8, sticky='ew')
    
61.         self.underline = Checkbutton(frame_style, name='underline', text='Underline', variable=self.font_var['underline'], command=lambda event='underline' : self.font_changed(event))
    
62.         self.underline.grid(row=0, column=2, padx=10, pady=8, sticky='ew')
    
63.         self.overstrike = Checkbutton(frame_style, name='overstrike', text='Overstrike', variable=self.font_var['overstrike'], command=lambda event='overstrike' : self.font_changed(event))
    
64.         self.overstrike.grid(row=0, column=3, padx=10, pady=8, sticky='ew')
    
65. 
    
66.         frame_size = LabelFrame(frame_setup, text='size')
    
67.         frame_size.grid(row=1, column=0, columnspan=2, sticky='ew', padx=5)
    
68.         frame_size.columnconfigure(0, weight=1)
    
69.         
    
70.         self.size = Scale(frame_size, variable = self.font_var['size'], from_=8, to=72, tickinterval=8, length=400, orient='horizontal', command=self.font_changed)
    
71.         self.size.grid(row=1, column=0, sticky='ew', padx= 5, pady=5)
    
72. 
    
73.     def build_legend(self):
    
74.         frame_legend = LabelFrame(self.root, text='legend', bg='red', padx=5, pady=5)
    
75.         frame_legend.pack(padx=10, fill='both', expand=True)
    
76. 
    
77.         frame_legend.rowconfigure(0, weight=1)
    
78.         frame_legend.columnconfigure(0, weight=1)
    
79. 
    
80.         self.legend.set('ABCDEabcde12345')
    
81.         self.legend = Label(frame_legend, textvariable=self.legend, font=self.legend_font, borderwidth=2, relief='groove', padx=10, pady=10)
    
82.         self.legend.grid(row=0, column=0, padx=5, pady=5, sticky='ewns')
    
83. 
    
84.     def font_changed(self, event):
    
85.         # key = str(event.widget).split(".")[-1]
    
86.         # value = event.widget.get()
    
87.         # self.font_var[key].set(value)
    
88.         self.build_legend_font()
    
89. 
    
90.            
    
91. 
    
92.     def build_event(self):
    
93.         self.families.bind('<<ComboboxSelected>>', self.font_changed)
    
94. 
    
95.     def build_footer(self):
    
96.         separator = Frame(self.root, height=2, bd=2, relief='groove')
    
97.         separator.pack(fill='x', padx=10, pady=2)
    
98.         frame_footer = Frame(self.root, padx=5, pady=5)
    
99.         frame_footer.pack(padx=10, fill='x')
    
100.         self.apply = Button(frame_footer, text='apply', width=10)
     
101.         self.apply.pack(side='right')        
     
102.         self.cancel = Button(frame_footer, text='cancel', width=10)
     
103.         self.cancel.pack(side='right', padx=10)
     
104.         self.ok = Button(frame_footer, text='ok', width=10)
     
105.         self.ok.pack(side='right')        
     
106.         
     
107.     def get_info(self):
     
108.         defaut = font.nametofont("TkDefaultFont")
     
109.         print('family: ', defaut.cget('family'))
     
110.         print('size: ', defaut.cget('size'))   
     
111.         print('weight: ', defaut.cget('weight'))   
     
112.         print('slant: ', defaut.cget('slant'))   
     
113.         print('underline: ', defaut.cget('underline'))
     
114.         print('overstrike: ', defaut.cget('overstrike'))      
     
115. 
     
116. if __name__ == '__main__':
     
117.    
     
118.     fs = Font_Selector()
     
119.     fs.get_info()
     
120.     fs.build_setup()
     
121.     fs.build_legend()
     
122.     fs.build_event()
     
123.     fs.build_footer()
     
124.     fs.root.mainloop()
     

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