allpy: ab9e2260a60a sandbox/ttk.py

allpy

view sandbox/ttk.py @ 178:ab9e2260a60a

Sequence.file_slice to import slice of large sequence

author	boris (netbook) <bnagaev@gmail.com>
date	Tue, 09 Nov 2010 15:05:06 +0300
parents
children	4e6e85851133

line source

1 from tkinter import ttk, filedialog

2 import tkinter

4 class Scrollbar(tkinter.Scrollbar):

6 def __init__(self, *args, **kw):

7 tkinter.Scrollbar.__init__(self, *args, **kw)

8 self['command'] = self._command

9 self._attached_widgets = set()

10 self._orient = {'horizontal': 'x', 'vertical': 'y'}[self['orient']]

12 def attach(self, widget):

13 self._attached_widgets.add(widget)

14 command = self._orient + 'scrollcommand'

15 widget[command] = lambda *args, **kw: self._set(widget, *args, **kw)

17 def _command(self, *args, **kw):

18 command = self._orient + 'view'

19 result = None

20 for widget in self._attached_widgets:

21 result = getattr(widget, command)(*args, **kw)

22 return result

24 def _set(self, sender, *args, **kw):

25 command = self._orient + 'view'

26 self.set(*args, **kw)

27 for widget in self._attached_widgets:

28 if widget is sender:

29 continue

30 getattr(widget, command)('moveto', args[0])

32 class MegaText(tkinter.Text):

34 def __init__(self, *args, **kw):

35 tkinter.Text.__init__(self, *args, **kw)

37 self.bind("<B1-Motion>", self._select)

38 self.bind("<B1-ButtonRelease>", self._select_end)

39 self.tag_configure('vselection', borderwidth=1, relief="solid", background='#ffbbbb')

41 def tag_clear(self, tag):

42 """Remove the tag from anywhere in the text."""

43 ranges = self.tag_ranges(tag)

44 for begin, end in zip(ranges[::2], ranges[1::2]):

45 self.tag_remove(tag, begin, end)

47 def insert(self, *args, **kw):

48 self['state'] = 'normal'

49 result = tkinter.Text.insert(self, *args, **kw)

50 self['state'] = 'disabled'

51 return result

53 def _select (self, ev):

54 index = self.index("@%s,%s" % (ev.x, ev.y))

55 line, pos = map(int, index.split('.'))

56 if not hasattr(self, '_selection'):

57 self._selection = [line, line, pos, pos]

58 self._selection[1] = line

59 self._selection[3] = pos

61 self.tag_clear('vselection')

62 line0, line1 = sorted(self._selection[0:2])

63 pos0, pos1 = sorted(self._selection[2:4])

64 for line in range(line0, line1 + 1):

65 self.tag_add(

66 'vselection',

67 '%s.%s' % (line, pos0),

68 '%s.%s' % (line, pos1)

69 )

70 return "break"

72 def _select_end(self, ev):

73 self._select(ev)

74 del self._selection

75 return "break"

77 def open_file():

78 global seqs

79 names.delete(0, 'end')

80 sequences.delete('1.0', 'end')

82 filename = filedialog.askopenfilename()

83 seqs = set()

84 for item in open(filename).read().split('\n>'):

85 lines = item.split('\n')

86 name = lines[0].lstrip('>').strip()

87 body = "".join(map(str.strip, lines[1:]))

89 names.insert('end', name)

90 sequences.insert('end', body+'\n')

91 line = int(sequences.index('end - 1 line').split('.')[0])

92 seqs.add((name, body, line))

94 def colorize():

95 length = len(list(seqs)[0][1])

96 num_seqs = len(seqs)

97 seq_weights = []

98 for pos in range(length):

99 weights = {}

100 for name, seq, _ in seqs:

101 char = seq[pos]

102 weights[char] = weights.get(char, 0) + 1

103 for char in weights:

104 weights[char] = weights[char] * 10 // num_seqs

105 seq_weights.append(weights)

106

107 for name, seq, line in seqs:

108 for pos in range(len(seq)):

109 char = seq[pos]

110 tag = 'id%d0' % seq_weights[pos].get(char, 0)

111 sequences.tag_add(tag, '%d.%d' % (line, pos))

112

113 for id in range(10+1):

114 w = (10 - id) * 256 / 10

115 color = '#%02x%02x%02x' % (w, w, w)

116 sequences.tag_configure('id%d0' % id, background=color)

117

118 root = tkinter.Tk()

119

120 root.option_add('*tearOff', False)

121 menu = tkinter.Menu(root)

122 menu_file = tkinter.Menu(menu)

123 menu_file.add_command(label='Open', command=open_file)

124 menu.add_cascade(menu=menu_file, label='File')

125 menu.add_command(label='Colorize', command=colorize)

126 root['menu'] = menu

127

128 main = ttk.PanedWindow(root, orient="horizontal")

129 names = tkinter.Listbox(main)

130 sequences = MegaText(main)

131

132 sequences['font'] = names['font'] = "Courier 10"

133

134 def _select(*args):

135 sequences.tag_clear('sel')

136 for line in names.curselection():

137 line = int(line) + 1

138 sequences.tag_add('sel', "%s.0" % line, "%s.end" % line)

139 sequences['inactiveselectbackground'] = 'blue'

140 names.bind('<<ListboxSelect>>', _select)

141

142 #sequences['spacing3'] = 1

143 sequences['exportselection'] = False

144 sequences['wrap'] = 'none'

145 #names['selectborderwidth'] = -1

146 names['highlightthickness'] = 0

147 names['activestyle'] = 'none'

148 names['exportselection'] = False

149

150 main.add(names)

151 main.add(sequences)

152 main.pack(side='right', fill='both', expand=True)

153

154 vscroll = Scrollbar(root, orient='vertical')

155 vscroll.attach(names)

156 vscroll.attach(sequences)

157 vscroll.pack(side='right', fill='y')

158

159 root.mainloop()