FilesExpand file tree

 angular-prototype

/

terminal.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

162 lines (118 loc) · 4.43 KB

 angular-prototype

/

terminal.py

Copy path

Top

File metadata and controls

• Code
• Blame

162 lines (118 loc) · 4.43 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

# encoding: utf-8

"""

Utilities for working with terminals.

Authors:

* Brian E. Granger

* Fernando Perez

* Alexander Belchenko (e-mail: bialix AT ukr.net)

"""

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

# Copyright (C) 2008-2011 The IPython Development Team

#

# Distributed under the terms of the BSD License. The full license is in

# the file COPYING, distributed as part of this software.

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

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

# Imports

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

import os

import struct

import sys

import warnings

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

# Code

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

# This variable is part of the expected API of the module:

ignore_termtitle = True

def _term_clear():

pass

if os.name == 'posix':

def _term_clear():

os.system('clear')

if sys.platform == 'win32':

def _term_clear():

os.system('cls')

def term_clear():

_term_clear()

def toggle_set_term_title(val):

"""Control whether set_term_title is active or not.

set_term_title() allows writing to the console titlebar. In embedded

widgets this can cause problems, so this call can be used to toggle it on

or off as needed.

The default state of the module is for the function to be disabled.

Parameters

----------

val : bool

If True, set_term_title() actually writes to the terminal (using the

appropriate platform-specific module). If False, it is a no-op.

"""

global ignore_termtitle

ignore_termtitle = not(val)

def _set_term_title(*args,**kw):

"""Dummy no-op."""

pass

def _set_term_title_xterm(title):

""" Change virtual terminal title in xterm-workalikes """

sys.stdout.write('\033]0;%s\007' % title)

if os.name == 'posix':

TERM = os.environ.get('TERM','')

if TERM.startswith('xterm'):

_set_term_title = _set_term_title_xterm

if sys.platform == 'win32':

try:

import ctypes

SetConsoleTitleW = ctypes.windll.kernel32.SetConsoleTitleW

SetConsoleTitleW.argtypes = [ctypes.c_wchar_p]

def _set_term_title(title):

"""Set terminal title using ctypes to access the Win32 APIs."""

SetConsoleTitleW(title)

except ImportError:

def _set_term_title(title):

"""Set terminal title using the 'title' command."""

global ignore_termtitle

try:

# Cannot be on network share when issuing system commands

curr = os.getcwdu()

os.chdir("C:")

ret = os.system("title " + title)

finally:

os.chdir(curr)

if ret:

# non-zero return code signals error, don't try again

ignore_termtitle = True

def set_term_title(title):

"""Set terminal title using the necessary platform-dependent calls."""

if ignore_termtitle:

return

_set_term_title(title)

def freeze_term_title():

warnings.warn("This function is deprecated, use toggle_set_term_title()")

global ignore_termtitle

ignore_termtitle = True

def get_terminal_size(defaultx=80, defaulty=25):

return defaultx, defaulty

if sys.platform == 'win32':

def get_terminal_size(defaultx=80, defaulty=25):

"""Return size of current terminal console.

This function try to determine actual size of current working

console window and return tuple (sizex, sizey) if success,

or default size (defaultx, defaulty) otherwise.

Dependencies: ctypes should be installed.

Author: Alexander Belchenko (e-mail: bialix AT ukr.net)

"""

try:

import ctypes

except ImportError:

return defaultx, defaulty

h = ctypes.windll.kernel32.GetStdHandle(-11)

csbi = ctypes.create_string_buffer(22)

res = ctypes.windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)

if res:

(bufx, bufy, curx, cury, wattr,

left, top, right, bottom, maxx, maxy) = struct.unpack(

"hhhhHhhhhhh", csbi.raw)

sizex = right - left + 1

sizey = bottom - top + 1

return (sizex, sizey)

else:

return (defaultx, defaulty)