Mercurial Repositories > eric / file comparison
comparison: Preferences/PreferencesLexer.py
Preferences/PreferencesLexer.py
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2002 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a special QextScintilla lexer to handle the preferences. | |
| 8 """ | |
| 9 | |
| 10 import sys | |
| 11 | |
| 12 from PyQt4.QtCore import * | |
| 13 from PyQt4.QtGui import QColor, QFont, QApplication | |
| 14 from PyQt4.Qsci import QsciLexer, QsciScintilla | |
| 15 | |
| 16 import QScintilla.Lexers | |
| 17 | |
| 18 import Preferences | |
| 19 | |
| 20 class PreferencesLexerError(Exception): | |
| 21 """ | |
| 22 Class defining a special error for the PreferencesLexer class. | |
| 23 """ | |
| 24 def __init__(self): | |
| 25 """ | |
| 26 Constructor | |
| 27 """ | |
| 28 self._errorMessage = \ | |
| 29 QApplication.translate("PreferencesLexerError", | |
| 30 "Unspecific PreferencesLexer error.") | |
| 31 | |
| 32 def __repr__(self): | |
| 33 """ | |
| 34 Private method returning a representation of the exception. | |
| 35 | |
| 36 @return string representing the error message | |
| 37 """ | |
| 38 return repr(self._errorMessage) | |
| 39 | |
| 40 def __str__(self): | |
| 41 """ | |
| 42 Private method returning a string representation of the exception. | |
| 43 | |
| 44 @return string representing the error message | |
| 45 """ | |
| 46 return self._errorMessage | |
| 47 | |
| 48 class PreferencesLexerLanguageError(PreferencesLexerError): | |
| 49 """ | |
| 50 Class defining a special error for the PreferencesLexer class. | |
| 51 """ | |
| 52 def __init__(self, language): | |
| 53 """ | |
| 54 Constructor | |
| 55 """ | |
| 56 PreferencesLexerError.__init__(self) | |
| 57 self._errorMessage = \ | |
| 58 QApplication.translate("PreferencesLexerError", | |
| 59 'Unsupported Lexer Language: {0}').format(language) | |
| 60 | |
| 61 class PreferencesLexer(QsciLexer): | |
| 62 """ | |
| 63 Subclass of QsciLexer to implement preferences specific lexer methods. | |
| 64 """ | |
| 65 def __init__(self, language, parent=None): | |
| 66 """ | |
| 67 Constructor | |
| 68 | |
| 69 @param language The lexer language. (string) | |
| 70 @param parent The parent widget of this lexer. (QextScintilla) | |
| 71 """ | |
| 72 QsciLexer.__init__(self, parent) | |
| 73 | |
| 74 # instantiate a lexer object for the given language | |
| 75 lex = QScintilla.Lexers.getLexer(language) | |
| 76 if lex is None: | |
| 77 raise PreferencesLexerLanguageError(language) | |
| 78 | |
| 79 # define the local store | |
| 80 self.colours = {} | |
| 81 self.defaultColours = {} | |
| 82 self.papers = {} | |
| 83 self.defaultPapers = {} | |
| 84 self.eolFills = {} | |
| 85 self.defaultEolFills = {} | |
| 86 self.fonts = {} | |
| 87 self.defaultFonts = {} | |
| 88 self.descriptions = {} | |
| 89 self.ind2style = {} | |
| 90 self.styles = [] | |
| 91 | |
| 92 # fill local store with default values from lexer | |
| 93 # and built up styles list and conversion table from index to style | |
| 94 self.__language = lex.language() | |
| 95 | |
| 96 index = 0 | |
| 97 for i in range(128): | |
| 98 desc = lex.description(i) | |
| 99 if desc: | |
| 100 self.descriptions[i] = desc | |
| 101 self.styles.append(desc) | |
| 102 | |
| 103 self.colours[i] = lex.defaultColor(i) | |
| 104 self.papers[i] = lex.defaultPaper(i) | |
| 105 self.eolFills[i] = lex.defaultEolFill(i) | |
| 106 self.fonts[i] = lex.defaultFont(i) | |
| 107 | |
| 108 self.defaultColours[i] = lex.defaultColor(i) | |
| 109 self.defaultPapers[i] = lex.defaultPaper(i) | |
| 110 self.defaultEolFills[i] = lex.defaultEolFill(i) | |
| 111 self.defaultFonts[i] = lex.defaultFont(i) | |
| 112 | |
| 113 self.ind2style[index] = i | |
| 114 index += 1 | |
| 115 | |
| 116 self.connect(self, SIGNAL("colorChanged (const QColor&, int)"), | |
| 117 self.setColor) | |
| 118 self.connect(self, SIGNAL("eolFillChanged (bool, int)"), | |
| 119 self.setEolFill) | |
| 120 self.connect(self, SIGNAL("fontChanged (const QFont&, int)"), | |
| 121 self.setFont) | |
| 122 self.connect(self, SIGNAL("paperChanged (const QColor&, int )"), | |
| 123 self.setPaper) | |
| 124 | |
| 125 # read the last stored values from preferences file | |
| 126 self.readSettings(Preferences.Prefs.settings, "Scintilla") | |
| 127 | |
| 128 def defaultColor(self, style): | |
| 129 """ | |
| 130 Public method to get the default colour of a style. | |
| 131 | |
| 132 @param style the style number (int) | |
| 133 @return colour | |
| 134 """ | |
| 135 return self.defaultColours[style] | |
| 136 | |
| 137 def color(self, style): | |
| 138 """ | |
| 139 Public method to get the colour of a style. | |
| 140 | |
| 141 @param style the style number (int) | |
| 142 @return colour | |
| 143 """ | |
| 144 return self.colours[style] | |
| 145 | |
| 146 def setColor(self, c, style): | |
| 147 """ | |
| 148 Public method to set the colour for a style. | |
| 149 | |
| 150 @param c colour (int) | |
| 151 @param style the style number (int) | |
| 152 """ | |
| 153 self.colours[style] = QColor(c) | |
| 154 | |
| 155 def defaultPaper(self, style): | |
| 156 """ | |
| 157 Public method to get the default background for a style. | |
| 158 | |
| 159 @param style the style number (int) | |
| 160 @return colour | |
| 161 """ | |
| 162 return self.defaultPapers[style] | |
| 163 | |
| 164 def paper(self, style): | |
| 165 """ | |
| 166 Public method to get the background for a style. | |
| 167 | |
| 168 @param style the style number (int) | |
| 169 @return colour | |
| 170 """ | |
| 171 return self.papers[style] | |
| 172 | |
| 173 def setPaper(self, c, style): | |
| 174 """ | |
| 175 Public method to set the background for a style. | |
| 176 | |
| 177 @param c colour (int) | |
| 178 @param style the style number (int) | |
| 179 """ | |
| 180 self.papers[style] = QColor(c) | |
| 181 | |
| 182 def defaulEolFill(self, style): | |
| 183 """ | |
| 184 Public method to get the default eolFill flag for a style. | |
| 185 | |
| 186 @param style the style number (int) | |
| 187 @return eolFill flag | |
| 188 """ | |
| 189 return self.defaultEolFills[style] | |
| 190 | |
| 191 def eolFill(self, style): | |
| 192 """ | |
| 193 Public method to get the eolFill flag for a style. | |
| 194 | |
| 195 @param style the style number (int) | |
| 196 @return eolFill flag | |
| 197 """ | |
| 198 return self.eolFills[style] | |
| 199 | |
| 200 def setEolFill(self, eolfill, style): | |
| 201 """ | |
| 202 Public method to set the eolFill flag for a style. | |
| 203 | |
| 204 @param eolfill eolFill flag (boolean) | |
| 205 @param style the style number (int) | |
| 206 """ | |
| 207 self.eolFills[style] = eolfill | |
| 208 | |
| 209 def defaultFont(self, style): | |
| 210 """ | |
| 211 Public method to get the default font for a style. | |
| 212 | |
| 213 @param style the style number (int) | |
| 214 @return font | |
| 215 """ | |
| 216 return self.defaultFonts[style] | |
| 217 | |
| 218 def font(self, style): | |
| 219 """ | |
| 220 Public method to get the font for a style. | |
| 221 | |
| 222 @param style the style number (int) | |
| 223 @return font | |
| 224 """ | |
| 225 return self.fonts[style] | |
| 226 | |
| 227 def setFont(self, f, style): | |
| 228 """ | |
| 229 Public method to set the font for a style. | |
| 230 | |
| 231 @param f font | |
| 232 @param style the style number (int) | |
| 233 """ | |
| 234 self.fonts[style] = QFont(f) | |
| 235 | |
| 236 def language(self): | |
| 237 """ | |
| 238 Public method to get the lexers programming language. | |
| 239 | |
| 240 @return language | |
| 241 """ | |
| 242 return self.__language | |
| 243 | |
| 244 def description(self, style): | |
| 245 """ | |
| 246 Public method to get a descriptive string for a style. | |
| 247 | |
| 248 @param style the style number (int) | |
| 249 @return description of the style (string) | |
| 250 """ | |
| 251 if self.descriptions.has_key(style): | |
| 252 return self.descriptions[style] | |
| 253 else: | |
| 254 return "" |
