1title = 'Pmw.ScrolledText demonstration'
2
3# Import Pmw from this directory tree.
4import sys
5sys.path[:0] = ['../../..']
6
7import os
8import tkinter
9import Pmw
10
11class Demo:
12    def __init__(self, parent):
13        # Create the ScrolledText.
14        self.st = Pmw.ScrolledText(parent,
15                borderframe = 1,
16                labelpos = 'n',
17                label_text='ScrolledText.py',
18                usehullsize = 1,
19                hull_width = 400,
20                hull_height = 300,
21                text_padx = 10,
22                text_pady = 10,
23                text_wrap='none'
24        )
25
26        # Create a group widget to contain the scrollmode options.
27        w = Pmw.Group(parent, tag_text='Scroll mode')
28        w.pack(side = 'bottom', padx = 5, pady = 5)
29
30        hmode = Pmw.OptionMenu(w.interior(),
31                labelpos = 'w',
32                label_text = 'Horizontal:',
33                items = ['none', 'static', 'dynamic'],
34                command = self.sethscrollmode,
35                menubutton_width = 8,
36        )
37        hmode.pack(side = 'left', padx = 5, pady = 5)
38        hmode.invoke('dynamic')
39
40        vmode = Pmw.OptionMenu(w.interior(),
41                labelpos = 'w',
42                label_text = 'Vertical:',
43                items = ['none', 'static', 'dynamic'],
44                command = self.setvscrollmode,
45                menubutton_width = 8,
46        )
47        vmode.pack(side = 'left', padx = 5, pady = 5)
48        vmode.invoke('dynamic')
49
50        buttonBox = Pmw.ButtonBox(parent)
51        buttonBox.pack(side = 'bottom')
52        buttonBox.add('yview', text = 'Show\nyview', command = self.showYView)
53        buttonBox.add('scroll', text = 'Page\ndown', command = self.pageDown)
54        buttonBox.add('center', text = 'Center', command = self.centerPage)
55
56        # Pack this last so that the buttons do not get shrunk when
57        # the window is resized.
58        self.st.pack(padx = 5, pady = 5, fill = 'both', expand = 1)
59
60        # Read this file into the text widget.
61        head, tail = os.path.split(sys.argv[0])
62        self.st.importfile(os.path.join(head,'ScrolledText.py'))
63
64        self.st.insert('end', '\nThis demonstrates how to\n' +
65            'add a window to a text widget:  ')
66        counter = Pmw.Counter(self.st.component('text'),
67            entryfield_value = 9999)
68        self.st.window_create('end', window = counter)
69
70    def sethscrollmode(self, tag):
71        self.st.configure(hscrollmode = tag)
72
73    def setvscrollmode(self, tag):
74        self.st.configure(vscrollmode = tag)
75
76    def showYView(self):
77        print((self.st.yview()))
78
79    def pageDown(self):
80        self.st.yview('scroll', 1, 'page')
81
82    def centerPage(self):
83        top, bottom = self.st.yview()
84        size = bottom - top
85        middle = 0.5 - size / 2
86        self.st.yview('moveto', middle)
87
88######################################################################
89
90# Create demo in root window for testing.
91if __name__ == '__main__':
92    root = tkinter.Tk()
93    Pmw.initialise(root)
94    root.title(title)
95
96    exitButton = tkinter.Button(root, text = 'Exit', command = root.destroy)
97    exitButton.pack(side = 'bottom')
98    widget = Demo(root)
99    root.mainloop()
100