Preferences/PreferencesLexer.py

Fri, 01 Nov 2013 15:48:48 +0100

author
T.Rzepka <Tobias.Rzepka@gmail.com>
date
Fri, 01 Nov 2013 15:48:48 +0100
branch
Py2 comp.
changeset 3058
0a02c433f52d
parent 3057
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parent 3025
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child 3145
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permissions
-rw-r--r--

Merge with default branch after fixed indentation issues.

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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (c) 2002 - 2013 Detlev Offenbach <detlev@die-offenbachs.de>
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4 #
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5
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6 """
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7 Module implementing a special QextScintilla lexer to handle the preferences.
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8 """
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9
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10 from __future__ import unicode_literals # __IGNORE_WARNING__
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11
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12 from PyQt4.QtGui import QColor, QFont, QApplication
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13 from PyQt4.Qsci import QsciLexer
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14
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15 import Preferences
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16 import Globals
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17
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18
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19 class PreferencesLexerError(Exception):
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20 """
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21 Class defining a special error for the PreferencesLexer class.
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22 """
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23 def __init__(self):
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24 """
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25 Constructor
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26 """
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27 self._errorMessage = QApplication.translate(
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28 "PreferencesLexerError",
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29 "Unspecific PreferencesLexer error.")
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30
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31 def __repr__(self):
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32 """
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33 Private method returning a representation of the exception.
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34
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35 @return string representing the error message
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36 """
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37 return repr(self._errorMessage)
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38
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39 def __str__(self):
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40 """
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41 Private method returning a string representation of the exception.
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42
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43 @return string representing the error message
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44 """
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45 return self._errorMessage
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46
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47
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48 class PreferencesLexerLanguageError(PreferencesLexerError):
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49 """
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50 Class defining a special error for the PreferencesLexer class.
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51 """
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52 def __init__(self, language):
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53 """
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54 Constructor
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55
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56 @param language lexer language (string)
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57 """
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58 PreferencesLexerError.__init__(self)
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59 self._errorMessage = QApplication.translate(
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60 "PreferencesLexerError",
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61 'Unsupported Lexer Language: {0}').format(language)
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62
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63
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64 class PreferencesLexer(QsciLexer):
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65 """
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66 Subclass of QsciLexer to implement preferences specific lexer methods.
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67 """
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68 def __init__(self, language, parent=None):
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69 """
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70 Constructor
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71
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72 @param language The lexer language. (string)
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73 @param parent The parent widget of this lexer. (QextScintilla)
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74 @exception PreferencesLexerLanguageError raised to indicate an invalid
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75 lexer language
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76 """
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77 super(PreferencesLexer, self).__init__(parent)
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78
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79 # These default font families are taken from QScintilla
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80 if Globals.isWindowsPlatform():
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81 self.__defaultFontFamily = "Courier New"
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82 elif Globals.isMacPlatform():
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83 self.__defaultFontFamily = "Courier"
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84 else:
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85 self.__defaultFontFamily = "Bitstream Vera Sans Mono"
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86
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87 # instantiate a lexer object for the given language
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88 import QScintilla.Lexers
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89 lex = QScintilla.Lexers.getLexer(language)
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90 if lex is None:
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91 raise PreferencesLexerLanguageError(language)
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92
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93 # define the local store
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94 self.colours = {}
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95 self.defaultColours = {}
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96 self.papers = {}
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97 self.defaultPapers = {}
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98 self.eolFills = {}
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99 self.defaultEolFills = {}
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100 self.fonts = {}
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101 self.defaultFonts = {}
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102 self.descriptions = {}
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103 self.ind2style = {}
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104 self.styles = []
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105
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106 # fill local store with default values from lexer
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107 # and built up styles list and conversion table from index to style
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108 self.__language = lex.language()
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109
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110 index = 0
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111 for i in range(128):
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112 desc = lex.description(i)
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113 if desc:
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114 self.descriptions[i] = desc
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115 self.styles.append(desc)
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116
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117 self.colours[i] = lex.defaultColor(i)
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118 self.papers[i] = lex.defaultPaper(i)
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119 self.eolFills[i] = lex.defaultEolFill(i)
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120 self.fonts[i] = lex.defaultFont(i)
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121 # Override QScintilla's default font family to
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122 # always use a monospaced font
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123 self.fonts[i].setFamily(self.__defaultFontFamily)
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124
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125 self.defaultColours[i] = lex.defaultColor(i)
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126 self.defaultPapers[i] = lex.defaultPaper(i)
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127 self.defaultEolFills[i] = lex.defaultEolFill(i)
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128 self.defaultFonts[i] = lex.defaultFont(i)
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diff changeset
129 self.defaultFonts[i].setFamily(self.__defaultFontFamily)
0
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130
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131 self.ind2style[index] = i
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132 index += 1
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133
500
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diff changeset
134 self.colorChanged.connect(self.setColor)
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parents: 97
diff changeset
135 self.eolFillChanged.connect(self.setEolFill)
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parents: 97
diff changeset
136 self.fontChanged.connect(self.setFont)
c3abc7895a01 Continued porting signal/slot usage to the new API.
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parents: 97
diff changeset
137 self.paperChanged.connect(self.setPaper)
0
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138
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139 # read the last stored values from preferences file
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parents:
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140 self.readSettings(Preferences.Prefs.settings, "Scintilla")
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141
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142 def defaultColor(self, style):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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143 """
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parents:
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144 Public method to get the default colour of a style.
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145
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146 @param style the style number (int)
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147 @return colour
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parents:
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148 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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149 return self.defaultColours[style]
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150
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151 def color(self, style):
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parents:
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152 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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153 Public method to get the colour of a style.
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154
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155 @param style the style number (int)
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156 @return colour
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parents:
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157 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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158 return self.colours[style]
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parents:
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159
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parents:
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160 def setColor(self, c, style):
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parents:
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161 """
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parents:
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162 Public method to set the colour for a style.
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163
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164 @param c colour (int)
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parents:
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165 @param style the style number (int)
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166 """
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parents:
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167 self.colours[style] = QColor(c)
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168
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169 def defaultPaper(self, style):
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parents:
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170 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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171 Public method to get the default background for a style.
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172
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173 @param style the style number (int)
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parents:
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174 @return colour
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parents:
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175 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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176 return self.defaultPapers[style]
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177
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178 def paper(self, style):
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179 """
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parents:
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180 Public method to get the background for a style.
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181
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182 @param style the style number (int)
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183 @return colour
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parents:
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184 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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185 return self.papers[style]
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186
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parents:
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187 def setPaper(self, c, style):
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parents:
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188 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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189 Public method to set the background for a style.
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190
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parents:
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191 @param c colour (int)
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192 @param style the style number (int)
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Detlev Offenbach <detlev@die-offenbachs.de>
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193 """
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parents:
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194 self.papers[style] = QColor(c)
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195
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196 def defaulEolFill(self, style):
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parents:
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197 """
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parents:
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198 Public method to get the default eolFill flag for a style.
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199
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200 @param style the style number (int)
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201 @return eolFill flag
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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202 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
203 return self.defaultEolFills[style]
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parents:
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204
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
205 def eolFill(self, style):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
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206 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207 Public method to get the eolFill flag for a style.
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208
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diff changeset
209 @param style the style number (int)
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210 @return eolFill flag
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212 return self.eolFills[style]
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213
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parents:
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214 def setEolFill(self, eolfill, style):
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215 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 Public method to set the eolFill flag for a style.
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217
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parents:
diff changeset
218 @param eolfill eolFill flag (boolean)
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219 @param style the style number (int)
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220 """
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parents:
diff changeset
221 self.eolFills[style] = eolfill
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222
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223 def defaultFont(self, style):
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parents:
diff changeset
224 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
225 Public method to get the default font for a style.
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parents:
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226
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parents:
diff changeset
227 @param style the style number (int)
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parents:
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228 @return font
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parents:
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229 """
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parents:
diff changeset
230 return self.defaultFonts[style]
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231
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232 def font(self, style):
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parents:
diff changeset
233 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
234 Public method to get the font for a style.
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parents:
diff changeset
235
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parents:
diff changeset
236 @param style the style number (int)
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parents:
diff changeset
237 @return font
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parents:
diff changeset
238 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
239 return self.fonts[style]
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diff changeset
240
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parents:
diff changeset
241 def setFont(self, f, style):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
242 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
243 Public method to set the font for a style.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
244
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
245 @param f font
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
246 @param style the style number (int)
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
247 """
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parents:
diff changeset
248 self.fonts[style] = QFont(f)
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249
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parents:
diff changeset
250 def language(self):
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
251 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
252 Public method to get the lexers programming language.
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
253
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parents:
diff changeset
254 @return language
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parents:
diff changeset
255 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
256 return self.__language
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257
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diff changeset
258 def description(self, style):
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parents:
diff changeset
259 """
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
260 Public method to get a descriptive string for a style.
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diff changeset
261
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parents:
diff changeset
262 @param style the style number (int)
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parents:
diff changeset
263 @return description of the style (string)
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parents:
diff changeset
264 """
12
1d8dd9706f46 First commit after changing to Python 3.1.
Detlev Offenbach <detlev@die-offenbachs.de>
parents: 0
diff changeset
265 if style in self.descriptions:
0
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parents:
diff changeset
266 return self.descriptions[style]
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parents:
diff changeset
267 else:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
268 return ""

eric ide

mercurial