annotate frontends/sortilege_old/editbox.py @ 587:952322b1d490

Remove trailing whitespaces.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Fri, 18 Jan 2013 17:55:34 +0100
parents 2a072735e459
children 84a6e83157c2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 sortilege: a SAT frontend
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b1794cbb88e5 2011 copyright upgrade
Goffi <goffi@goffi.org>
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6 Copyright (C) 2009, 2010, 2011 Jérôme Poisson (goffi@goffi.org)
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7
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8 This program is free software: you can redistribute it and/or modify
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2a072735e459 Licence modification: the full project is now under AGPL v3+ instead of GPL v3+
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9 it under the terms of the GNU Affero General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU Affero General Public License for more details.
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17
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18 You should have received a copy of the GNU Affero General Public License
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19 along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 """
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21
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22
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23 import curses
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24 from curses import ascii
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25 from window import Window
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26
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27 def C(k):
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28 """return the value of Ctrl+key"""
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29 return ord(ascii.ctrl(k))
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30
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31 def A(k):
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32 """return the value of Alt+key"""
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33 return ord(ascii.alt(k))
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34
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35 class EditBox(Window):
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36 """This class manage the edition of text"""
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37
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38 def __init__(self, parent, header, code="utf-8"):
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39 self.__header=header
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40 self.__text = unicode()
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41 self.__curs_pos=0
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42 self.__buffer=str()
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43 self.__replace_mode=False
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44 self.__parent=parent
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45 self.__code=code
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46
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47 Window.__init__(self, self.__parent, 1, self.__parent.getmaxyx()[1], self.__parent.getmaxyx()[0]-1,0, code=code)
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48 self.update()
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49
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50 def registerEnterCB(self, CB):
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51 self.__enterCB=CB
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52
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53 def resizeAdapt(self):
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54 """Adapt window size to self.__parent size.
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55 Must be called when self.__parent is resized."""
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56 self.resize(1, self.__parent.getmaxyx()[1], self.__parent.getmaxyx()[0]-1,0)
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57 self.update()
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58
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59 def __getTextToPrint(self):
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60 """return the text printed on the edit line"""
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61 width = self.rWidth - len(self.__header) -1
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62 if self.__curs_pos<width:
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63 begin = 0
0
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64 end = width
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65 else:
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66 begin = self.__curs_pos-width
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67 end = self.__curs_pos
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68 return self.__header+self.__text[begin:end]
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69
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70 def update(self):
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71 Window.update(self)
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72 text = self.__getTextToPrint()
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73 self.addYXStr(0, 0, text, limit=self.rWidth)
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74
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75 self.noutrefresh()
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76
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77 def __dec_cur(self):
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78 """move cursor on the left"""
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79 if self.__curs_pos>0:
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80 self.__curs_pos = self.__curs_pos - 1
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81
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82 def __inc_cur(self):
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83 """move cursor on the right"""
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84 if self.__curs_pos<len(self.__text):
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85 self.__curs_pos = self.__curs_pos + 1
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86
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87 def move_cur(self, x):
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88 pos = x+len(self.__header)
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89 if pos>=self.rWidth:
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90 pos=self.rWidth-1
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91 self.move(0, pos)
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92
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93 def clear_text(self):
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94 """Clear the text of the edit box"""
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95 self.__text=""
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96 self.__curs_pos=0
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97
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98 def replace_cur(self):
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99 """must be called earch time the cursor is moved"""
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100 self.move_cur(self.__curs_pos)
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101 self.noutrefresh()
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102
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103 def activate(self, state=True):
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104 cursor_mode = 1 if state else 0
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105 curses.curs_set(cursor_mode)
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106 Window.activate(self,state)
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107
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108 def handleKey(self, k):
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109 if ascii.isgraph(k) or ascii.isblank(k):
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110 pacman = 0 if not self.__replace_mode else 1
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111 self.__text = self.__text[:self.__curs_pos] + chr(k) + self.__text[self.__curs_pos + pacman:]
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112 self.__curs_pos = self.__curs_pos + 1
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113
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114 elif k==ascii.NL:
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115 try:
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116 self.__enterCB(self.__text)
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117 except NameError:
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118 pass # TODO: thrown an error here
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119 self.clear_text()
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120
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121 elif k==curses.KEY_BACKSPACE:
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122 self.__text = self.__text[:self.__curs_pos-1]+self.__text[self.__curs_pos:]
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123 self.__dec_cur()
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124
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125 elif k==curses.KEY_DC:
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126 self.__text = self.__text[:self.__curs_pos]+self.__text[self.__curs_pos+1:]
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127
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128 elif k==curses.KEY_IC:
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129 self.__replace_mode = not self.__replace_mode
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130
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131 elif k==curses.KEY_LEFT:
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132 self.__dec_cur()
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133
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134 elif k==curses.KEY_RIGHT:
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135 self.__inc_cur()
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136
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137 elif k==curses.KEY_HOME or k==C('a'):
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138 self.__curs_pos=0
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139
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140 elif k==curses.KEY_END or k==C('e'):
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141 self.__curs_pos=len(self.__text)
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142
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143 elif k==C('k'):
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144 self.__text = self.__text[:self.__curs_pos]
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145
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146 elif k==C('w'):
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147 before = self.__text[:self.__curs_pos]
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148 pos = before.rstrip().rfind(" ")+1
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149 self.__text = before[:pos] + self.__text[self.__curs_pos:]
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150 self.__curs_pos = pos
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151
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152 elif k>255:
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153 self.__buffer=""
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154
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155 else: ## FIXME: dangerous code, must be checked ! (specialy buffer overflow) ##
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156 #We now manage unicode
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157 self.__buffer = self.__buffer+chr(k)
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158 decoded=unicode()
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159 if len(self.__buffer)>4:
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160 self.__buffer=""
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161 return
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162 try:
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163 decoded = self.__buffer.decode(self.__code)
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164 except UnicodeDecodeError, e:
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165 if e.reason!="unexpected end of data":
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166 self.__buffer=""
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167 return
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168 if len(self.__buffer)==1: ## FIXME: awful ! only for test !
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169 self.__buffer=""
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170 return
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171 self.__text = self.__text + decoded
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172 self.__curs_pos = self.__curs_pos + 1
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173 self.__buffer=""
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174
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175 self.update()
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176