class CommandShell(QsciScintilla):
def __init__(self, parent=None):
super(CommandShell, self).__init__(parent)
self.setMinimumHeight(50)
self.setMaximumHeight(50)
self.settings = QSettings()
self.lex = QsciLexerPython(self)
self.apis = QsciAPIs(self.lex)
self.lex.setAPIs(self.apis)
self.setLexers()
self.SendScintilla(QsciScintilla.SCI_SETHSCROLLBAR, 0)
self.SendScintilla(QsciScintilla.SCI_SETVSCROLLBAR, 0)
self.setFolding(0)
self._start_prompt = _start_prompt
self.prompt = self._start_prompt
self.currentfunction = None
self.setAutoCompletionSource(self.AcsAPIs)
self.setAutoCompletionThreshold(1)
self.setAutoCompletionReplaceWord(True)
self.setCallTipsStyle(QsciScintilla.CallTipsNoContext)
self.parent().installEventFilter(self)
self.textChanged.connect(self.text_changed)
self._lastcompletions = None
def text_changed(self):
if not self.get_data().strip():
return
try:
completions = command.completions_for_line(self.get_data())
if completions == self._lastcompletions:
self.autoCompleteFromAPIs()
return
self._lastcompletions = completions
self.apis.cancelPreparation()
self.apis.clear()
for value in completions:
data = u"{}".format(value)
self.apis.add(data)
self.apis.prepare()
except command.NoFunction:
return
def end(self):
self.parent().removeEventFilter(self)
self.close()
def eventFilter(self, object, event):
if event.type() == QEvent.Resize:
self.adjust_size()
return QWidget.eventFilter(self, object, event)
def keyPressEvent(self, e):
if e.key() in (Qt.Key_Return, Qt.Key_Enter):
self.entered()
elif e.key() == Qt.Key_Escape:
self.close()
elif e.key() in (Qt.Key_Backspace, Qt.Key_Delete):
_, newindex = self.getCursorPosition()
if newindex > len(self.prompt):
QsciScintilla.keyPressEvent(self, e)
else:
QsciScintilla.keyPressEvent(self, e)
def show_prompt(self, prompt=_start_prompt, data=None):
self.clear()
if not prompt == _start_prompt:
prompt += ":"
text = prompt
if data:
text = prompt + str(data)
self.setText(text)
self.prompt = prompt
self.move_cursor_to_end()
def get_end_pos(self):
"""Return (line, index) position of the last character"""
line = self.lines() - 1
return (line, len(self.text(line)))
def move_cursor_to_end(self):
"""Move cursor to end of text"""
line, index = self.get_end_pos()
self.setCursorPosition(line, index)
self.ensureCursorVisible()
self.ensureLineVisible(line)
def get_data(self):
line = self.text()
line = line[len(self.prompt):]
return line
def entered(self):
line = self.get_data()
if not self.currentfunction:
try:
gen = command.parse_line_data(line)
except command.NoFunction:
return
if gen:
self.currentfunction = gen
line = None
else:
self.currentfunction = None
self.show_prompt()
return
try:
prompt, data = self.currentfunction.send(line)
self.show_prompt(prompt, data)
except StopIteration:
self.currentfunction = None
self.show_prompt()
def setLexers(self):
loadFont = self.settings.value("pythonConsole/fontfamilytext", "Monospace")
fontSize = self.settings.value("pythonConsole/fontsize", 10, type=int)
font = QFont(loadFont)
font.setFixedPitch(True)
font.setPointSize(fontSize)
font.setStyleHint(QFont.TypeWriter)
font.setStretch(QFont.SemiCondensed)
font.setLetterSpacing(QFont.PercentageSpacing, 87.0)
font.setBold(False)
self.lex.setFont(font)
self.lex.setDefaultFont(font)
self.setLexer(self.lex)
def adjust_size(self):
fm = QFontMetrics(self.font())
self.setMaximumHeight(20)
self.resize(self.parent().width(), 20)
self.move(0, self.parent().height() - self.height())
def showEvent(self, event):
self.adjust_size()
self.show_prompt()
self.setFocus()
def activated(self):
visible = self.isVisible()
self.setVisible(not visible)
class APIs(QObject):
"""
Class implementing an API storage entity.
@signal apiPreparationFinished() emitted after the API preparation has finished
@signal apiPreparationCancelled() emitted after the API preparation has been cancelled
@signal apiPreparationStarted() emitted after the API preparation has started
"""
def __init__(self, language, forPreparation = False, parent = None):
"""
Constructor
@param language language of the APIs object (string)
@param forPreparation flag indicating this object is just needed
for a preparation process (boolean)
@param parent reference to the parent object (QObject)
"""
QObject.__init__(self, parent)
self.setObjectName("APIs_%s" % language)
self.__inPreparation = False
self.__language = language
self.__forPreparation = forPreparation
self.__lexer = Lexers.getLexer(self.__language)
self.__apifiles = Preferences.getEditorAPI(self.__language)
self.__apifiles.sort()
if self.__lexer is None:
self.__apis = None
else:
self.__apis = QsciAPIs(self.__lexer)
self.connect(self.__apis, SIGNAL("apiPreparationFinished()"),
self.__apiPreparationFinished)
self.connect(self.__apis, SIGNAL("apiPreparationCancelled()"),
self.__apiPreparationCancelled)
self.connect(self.__apis, SIGNAL("apiPreparationStarted()"),
self.__apiPreparationStarted)
self.__loadAPIs()
def __loadAPIs(self):
"""
Private method to load the APIs.
"""
if self.__apis.isPrepared():
# load a prepared API file
if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
self.prepareAPIs()
self.__apis.loadPrepared()
else:
# load the raw files and prepare the API file
if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
self.prepareAPIs(ondemand = True)
def reloadAPIs(self):
"""
Public method to reload the API information.
"""
if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
self.prepareAPIs()
self.__loadAPIs()
def getQsciAPIs(self):
"""
Public method to get a reference to QsciAPIs object.
@return reference to the QsciAPIs object (QsciAPIs)
"""
if not self.__forPreparation and Preferences.getEditor("AutoPrepareAPIs"):
self.prepareAPIs()
return self.__apis
def __apiPreparationFinished(self):
"""
Private method called to save an API, after it has been prepared.
"""
res = self.__apis.savePrepared()
self.__inPreparation = False
self.emit(SIGNAL('apiPreparationFinished()'))
def __apiPreparationCancelled(self):
"""
Private method called, after the API preparation process has been cancelled.
"""
self.__inPreparation = False
self.emit(SIGNAL('apiPreparationCancelled()'))
def __apiPreparationStarted(self):
"""
Private method called, when the API preparation process started.
"""
self.__inPreparation = True
self.emit(SIGNAL('apiPreparationStarted()'))
def prepareAPIs(self, ondemand = False, rawList = None):
"""
Public method to prepare the APIs if necessary.
@keyparam ondemand flag indicating a requested preparation (boolean)
@keyparam rawList list of raw API files (QStringList)
"""
if self.__apis is None or self.__inPreparation:
return
needsPreparation = False
if ondemand:
needsPreparation = True
else:
# check, if a new preparation is necessary
preparedAPIs = self.__defaultPreparedName()
if not preparedAPIs.isEmpty():
preparedAPIsInfo = QFileInfo(preparedAPIs)
if not preparedAPIsInfo.exists():
needsPreparation = True
else:
preparedAPIsTime = preparedAPIsInfo.lastModified()
apifiles = Preferences.getEditorAPI(self.__language)
apifiles.sort()
if self.__apifiles != apifiles:
needsPreparation = True
for apifile in apifiles:
if QFileInfo(apifile).lastModified() > preparedAPIsTime:
needsPreparation = True
break
if needsPreparation:
# do the preparation
self.__apis.clear()
if rawList:
apifiles = rawList
else:
apifiles = Preferences.getEditorAPI(self.__language)
for apifile in apifiles:
self.__apis.load(apifile)
self.__apis.prepare()
self.__apifiles = apifiles
def cancelPreparation(self):
"""
Public slot to cancel the APIs preparation.
"""
self.__apis and self.__apis.cancelPreparation()
def installedAPIFiles(self):
"""
Public method to get a list of installed API files.
@return list of installed API files (QStringList)
"""
if self.__apis is not None:
if Utilities.isWindowsPlatform():
qsciPath = os.path.join(Utilities.getPyQt4ModulesDirectory(), "qsci")
if os.path.exists(qsciPath):
# it's the installer
if self.__lexer.lexer() is not None:
apidir = os.path.join(qsciPath, "api", self.__lexer.lexer())
fnames = QStringList()
filist = QDir(apidir).entryInfoList(["*.api"], QDir.Files,
QDir.IgnoreCase)
for fi in filist:
fnames.append(fi.absoluteFilePath())
return fnames
else:
return QStringList()
return self.__apis.installedAPIFiles()
else:
return QStringList()
def __defaultPreparedName(self):
"""
Private method returning the default name of a prepared API file.
@return complete filename for the Prepared APIs file (QString)
"""
if self.__apis is not None:
return self.__apis.defaultPreparedName()
else:
return QString()
