annotate frontends/sortilege_old/editbox.py @ 762:aed7d99276b8

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