Mercurial Repositories > eric / file comparison
comparison: UI/SymbolsWidget.py
UI/SymbolsWidget.py
- changeset 365
- 0686ac00256e
- child 366
- 58f2122a5d6a
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| 363:8bda0881a970 | 365:0686ac00256e |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a widget to select a symbol in various formats. | |
| 8 """ | |
| 9 | |
| 10 import unicodedata | |
| 11 import html.entities | |
| 12 | |
| 13 from PyQt4.QtCore import pyqtSlot, pyqtSignal, QAbstractTableModel, QModelIndex, Qt | |
| 14 from PyQt4.QtGui import QWidget, QHeaderView, QAbstractItemView, QColor | |
| 15 | |
| 16 from .Ui_SymbolsWidget import Ui_SymbolsWidget | |
| 17 | |
| 18 class SymbolsModel(QAbstractTableModel): | |
| 19 """ | |
| 20 Class implementing the model for the symbols widget. | |
| 21 """ | |
| 22 def __init__(self, parent = None): | |
| 23 """ | |
| 24 Constructor | |
| 25 | |
| 26 @param parent reference to the parent object (QObject) | |
| 27 """ | |
| 28 QAbstractTableModel.__init__(self, parent) | |
| 29 | |
| 30 self.__headerData = [ | |
| 31 self.trUtf8("Code"), | |
| 32 self.trUtf8("Char"), | |
| 33 self.trUtf8("Hex"), | |
| 34 self.trUtf8("HTML"), | |
| 35 ] | |
| 36 | |
| 37 self.__unicode = True | |
| 38 | |
| 39 def setUnicode(self, u): | |
| 40 """ | |
| 41 Public method to set the mode of the model. | |
| 42 | |
| 43 @param u flag indicating unicode mode (boolean) | |
| 44 """ | |
| 45 self.__unicode = u | |
| 46 self.reset() | |
| 47 | |
| 48 def headerData(self, section, orientation, role = Qt.DisplayRole): | |
| 49 """ | |
| 50 Public method to get header data from the model. | |
| 51 | |
| 52 @param section section number (integer) | |
| 53 @param orientation orientation (Qt.Orientation) | |
| 54 @param role role of the data to retrieve (integer) | |
| 55 @return requested data | |
| 56 """ | |
| 57 if orientation == Qt.Horizontal and role == Qt.DisplayRole: | |
| 58 return self.__headerData[section] | |
| 59 | |
| 60 return QAbstractTableModel.headerData(self, section, orientation, role) | |
| 61 | |
| 62 def data(self, index, role = Qt.DisplayRole): | |
| 63 """ | |
| 64 Public method to get data from the model. | |
| 65 | |
| 66 @param index index to get data for (QModelIndex) | |
| 67 @param role role of the data to retrieve (integer) | |
| 68 @return requested data | |
| 69 """ | |
| 70 id = index.row() | |
| 71 | |
| 72 if role == Qt.DisplayRole: | |
| 73 col = index.column() | |
| 74 if col == 0: | |
| 75 return str(id) | |
| 76 elif col == 1: | |
| 77 return chr(id) | |
| 78 elif col == 2: | |
| 79 return "0x{0:04x}".format(id) | |
| 80 elif col == 3: | |
| 81 if id in html.entities.codepoint2name: | |
| 82 return "&{0};".format(html.entities.codepoint2name[id]) | |
| 83 | |
| 84 if role == Qt.BackgroundColorRole: | |
| 85 if index.column() == 0: | |
| 86 return QColor(Qt.lightGray) | |
| 87 | |
| 88 if role == Qt.TextColorRole: | |
| 89 char = chr(id) | |
| 90 if self.__isDigit(char): | |
| 91 return QColor(Qt.darkBlue) | |
| 92 elif self.__isLetter(char): | |
| 93 return QColor(Qt.darkGreen) | |
| 94 elif self.__isMark(char): | |
| 95 return QColor(Qt.darkRed) | |
| 96 elif self.__isSymbol(char): | |
| 97 return QColor(Qt.black) | |
| 98 elif self.__isPunct(char): | |
| 99 return QColor(Qt.darkMagenta) | |
| 100 else: | |
| 101 return QColor(Qt.darkGray) | |
| 102 | |
| 103 if role == Qt.TextAlignmentRole: | |
| 104 if index.column() in [0, 1, 3]: | |
| 105 return Qt.AlignHCenter | |
| 106 | |
| 107 return None | |
| 108 | |
| 109 def columnCount(self, parent): | |
| 110 """ | |
| 111 Public method to get the number of columns of the model. | |
| 112 | |
| 113 @param parent parent index (QModelIndex) | |
| 114 @return number of columns (integer) | |
| 115 """ | |
| 116 if parent.column() > 0: | |
| 117 return 0 | |
| 118 else: | |
| 119 return len(self.__headerData) | |
| 120 | |
| 121 def rowCount(self, parent): | |
| 122 """ | |
| 123 Public method to get the number of rows of the model. | |
| 124 | |
| 125 @param parent parent index (QModelIndex) | |
| 126 @return number of columns (integer) | |
| 127 """ | |
| 128 if parent.isValid(): | |
| 129 return 0 | |
| 130 else: | |
| 131 if self.__unicode: | |
| 132 return 65536 | |
| 133 else: | |
| 134 return 256 | |
| 135 | |
| 136 def __isDigit(self, char): | |
| 137 """ | |
| 138 Private method to check, if a character is a digit. | |
| 139 | |
| 140 @param char character to test (one character string) | |
| 141 @return flag indicating a digit (boolean) | |
| 142 """ | |
| 143 return unicodedata.category(char) == "Nd" | |
| 144 | |
| 145 def __isLetter(self, char): | |
| 146 """ | |
| 147 Private method to check, if a character is a letter. | |
| 148 | |
| 149 @param char character to test (one character string) | |
| 150 @return flag indicating a letter (boolean) | |
| 151 """ | |
| 152 return unicodedata.category(char) in ["Lu", "Ll", "Lt", "Lm", "Lo"] | |
| 153 | |
| 154 def __isMark(self, char): | |
| 155 """ | |
| 156 Private method to check, if a character is a mark character. | |
| 157 | |
| 158 @param char character to test (one character string) | |
| 159 @return flag indicating a mark character (boolean) | |
| 160 """ | |
| 161 return unicodedata.category(char) in ["Mn", "Mc", "Me"] | |
| 162 | |
| 163 def __isSymbol(self, char): | |
| 164 """ | |
| 165 Private method to check, if a character is a symbol. | |
| 166 | |
| 167 @param char character to test (one character string) | |
| 168 @return flag indicating a symbol (boolean) | |
| 169 """ | |
| 170 return unicodedata.category(char) in ["Sm", "Sc", "Sk", "So"] | |
| 171 | |
| 172 def __isPunct(self, char): | |
| 173 """ | |
| 174 Private method to check, if a character is a punctuation character. | |
| 175 | |
| 176 @param char character to test (one character string) | |
| 177 @return flag indicating a punctuation character (boolean) | |
| 178 """ | |
| 179 return unicodedata.category(char) in ["Pc", "Pd", "Ps", "Pe", "Pi", "Pf", "Po"] | |
| 180 | |
| 181 class SymbolsWidget(QWidget, Ui_SymbolsWidget): | |
| 182 """ | |
| 183 Class implementing a widget to select a symbol in various formats. | |
| 184 | |
| 185 @signal insertSymbol(str) emitted after the user has selected a symbol | |
| 186 """ | |
| 187 insertSymbol = pyqtSignal(str) | |
| 188 | |
| 189 def __init__(self, parent = None): | |
| 190 """ | |
| 191 Constructor | |
| 192 | |
| 193 @param parent reference to the parent widget (QWidget) | |
| 194 """ | |
| 195 QWidget.__init__(self, parent) | |
| 196 self.setupUi(self) | |
| 197 | |
| 198 self.__model = SymbolsModel(self) | |
| 199 self.symbolsTable.setModel(self.__model) | |
| 200 self.symbolsTable.horizontalHeader().setResizeMode(QHeaderView.Fixed) | |
| 201 | |
| 202 fm = self.fontMetrics() | |
| 203 em = fm.width("M") | |
| 204 self.symbolsTable.horizontalHeader().resizeSection(0, em * 5) | |
| 205 self.symbolsTable.horizontalHeader().resizeSection(1, em * 5) | |
| 206 self.symbolsTable.horizontalHeader().resizeSection(2, em * 6) | |
| 207 self.symbolsTable.horizontalHeader().resizeSection(3, em * 8) | |
| 208 self.symbolsTable.verticalHeader().setDefaultSectionSize(fm.height() + 4) | |
| 209 | |
| 210 @pyqtSlot(QModelIndex) | |
| 211 def on_symbolsTable_activated(self, index): | |
| 212 """ | |
| 213 Private slot to signal the selection of a symbol. | |
| 214 | |
| 215 @param index index of the selected symbol (QModelIndex) | |
| 216 """ | |
| 217 txt = self.__model.data(index) | |
| 218 if txt: | |
| 219 self.insertSymbol.emit(txt) | |
| 220 | |
| 221 @pyqtSlot(bool) | |
| 222 def on_unicodeButton_toggled(self, checked): | |
| 223 """ | |
| 224 Private slot to switch unicode mode. | |
| 225 | |
| 226 @param checked flag indicating that the button is pressed (boolean) | |
| 227 """ | |
| 228 self.symbolsTable.setUpdatesEnabled(False) | |
| 229 self.__model.setUnicode(checked) | |
| 230 self.symbolsTable.setUpdatesEnabled(True) | |
| 231 | |
| 232 @pyqtSlot() | |
| 233 def on_symbolSpinBox_editingFinished(self): | |
| 234 """ | |
| 235 Private slot to move the table to the entered symbol id. | |
| 236 """ | |
| 237 id = self.symbolSpinBox.value() | |
| 238 self.symbolsTable.selectRow(id) | |
| 239 self.symbolsTable.scrollTo( | |
| 240 self.__model.index(id, 0), QAbstractItemView.PositionAtCenter) |
