Project/LexerAssociationDialog.py

changeset 0
de9c2efb9d02
child 12
1d8dd9706f46
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Project/LexerAssociationDialog.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,158 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog to enter lexer associations for the project.
+"""
+
+import os
+
+from pygments.lexers import get_all_lexers
+
+from PyQt4.QtCore import Qt, pyqtSlot
+from PyQt4.QtGui import QHeaderView, QTreeWidgetItem, QDialog
+
+import QScintilla.Lexers
+
+from Ui_LexerAssociationDialog import Ui_LexerAssociationDialog
+
+class LexerAssociationDialog(QDialog, Ui_LexerAssociationDialog):
+    """
+    Class implementing a dialog to enter lexer associations for the project.
+    """
+    def __init__(self, project, parent = None):
+        """
+        Constructor
+        
+        @param project reference to the project object
+        @param parent reference to the parent widget (QWidget)
+        """
+        QDialog.__init__(self, parent)
+        self.setupUi(self)
+
+        self.editorLexerList.headerItem().setText(self.editorLexerList.columnCount(), "")
+        header = self.editorLexerList.header()
+        header.setResizeMode(QHeaderView.ResizeToContents)
+        header.setSortIndicator(0, Qt.AscendingOrder)
+        
+        try:
+            self.extsep = os.extsep
+        except AttributeError:
+            self.extsep = "."
+        
+        self.extras = ["-----------", self.trUtf8("Alternative")]
+        languages = \
+            [''] + sorted(QScintilla.Lexers.getSupportedLanguages().keys()) + self.extras
+        self.editorLexerCombo.addItems(languages)
+        
+        pygmentsLexers = [''] + sorted([l[0] for l in get_all_lexers()])
+        self.pygmentsLexerCombo.addItems(pygmentsLexers)
+        
+        # set initial values
+        self.project = project
+        for ext, lexer in self.project.pdata["LEXERASSOCS"].items():
+            QTreeWidgetItem(self.editorLexerList, [ext, lexer])
+        self.editorLexerList.sortByColumn(0, Qt.AscendingOrder)
+    
+    @pyqtSlot()
+    def on_addLexerButton_clicked(self):
+        """
+        Private slot to add the lexer association displayed to the list.
+        """
+        ext = self.editorFileExtEdit.text()
+        if ext.startswith(self.extsep):
+            ext.replace(self.extsep, "")
+        lexer = self.editorLexerCombo.currentText()
+        if lexer in self.extras:
+            pygmentsLexer = self.pygmentsLexerCombo.currentText()
+            if not pygmentsLexer:
+                lexer = pygmentsLexer
+            else:
+                lexer = "Pygments|{0}".format(pygmentsLexer)
+        if ext and lexer:
+            itmList = self.editorLexerList.findItems(\
+                ext, Qt.MatchFlags(Qt.MatchExactly), 0)
+            if itmList:
+                index = self.editorLexerList.indexOfTopLevelItem(itmList[0])
+                itm = self.editorLexerList.takeTopLevelItem(index)
+                del itm
+            itm = QTreeWidgetItem(self.editorLexerList, [ext, lexer])
+            self.editorFileExtEdit.clear()
+            self.editorLexerCombo.setCurrentIndex(0)
+            self.pygmentsLexerCombo.setCurrentIndex(0)
+            self.editorLexerList.sortItems(self.editorLexerList.sortColumn(), 
+                self.editorLexerList.header().sortIndicatorOrder())
+    
+    @pyqtSlot()
+    def on_deleteLexerButton_clicked(self):
+        """
+        Private slot to delete the currently selected lexer association of the list.
+        """
+        itmList = self.editorLexerList.selectedItems()
+        if itmList:
+            index = self.editorLexerList.indexOfTopLevelItem(itmList[0])
+            itm = self.editorLexerList.takeTopLevelItem(index)
+            del itm
+            
+            self.editorLexerList.clearSelection()
+            self.editorFileExtEdit.clear()
+            self.editorLexerCombo.setCurrentIndex(0)
+    
+    def on_editorLexerList_itemClicked(self, itm, column):
+        """
+        Private slot to handle the clicked signal of the lexer association list.
+        
+        @param itm reference to the selecte item (QTreeWidgetItem)
+        @param column column the item was clicked or activated (integer) (ignored)
+        """
+        if itm is None:
+            self.editorFileExtEdit.clear()
+            self.editorLexerCombo.setCurrentIndex(0)
+            self.pygmentsLexerCombo.setCurrentIndex(0)
+        else:
+            self.editorFileExtEdit.setText(itm.text(0))
+            lexer = itm.text(1)
+            if lexer.startswith("Pygments|"):
+                pygmentsLexer = lexer.split("|")[1]
+                pygmentsIndex = self.pygmentsLexerCombo.findText(pygmentsLexer)
+                lexer = self.trUtf8("Alternative")
+            else:
+                pygmentsIndex = 0
+            index = self.editorLexerCombo.findText(lexer)
+            self.editorLexerCombo.setCurrentIndex(index)
+            self.pygmentsLexerCombo.setCurrentIndex(pygmentsIndex)
+    
+    def on_editorLexerList_itemActivated(self, itm, column):
+        """
+        Private slot to handle the activated signal of the lexer association list.
+        
+        @param itm reference to the selecte item (QTreeWidgetItem)
+        @param column column the item was clicked or activated (integer) (ignored)
+        """
+        self.on_editorLexerList_itemClicked(itm, column)
+    
+    @pyqtSlot(str)
+    def on_editorLexerCombo_currentIndexChanged(self, text):
+        """
+        Private slot to handle the selection of a lexer.
+        
+        @param text text of the line edit (string)
+        """
+        if text in self.extras:
+            self.pygmentsLexerCombo.setEnabled(True)
+            self.pygmentsLabel.setEnabled(True)
+        else:
+            self.pygmentsLexerCombo.setEnabled(False)
+            self.pygmentsLabel.setEnabled(False)
+
+    def transferData(self):
+        """
+        Public slot to transfer the associations into the projects data structure.
+        """
+        self.project.pdata["LEXERASSOCS"] = {}
+        for index in range(self.editorLexerList.topLevelItemCount()):
+            itm = self.editorLexerList.topLevelItem(index)
+            pattern = itm.text(0)
+            self.project.pdata["LEXERASSOCS"][pattern] = itm.text(1)

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