--- a/QScintilla/Shell.py Sun Jul 09 19:42:44 2017 +0200
+++ b/QScintilla/Shell.py Sun Jul 09 19:44:33 2017 +0200
@@ -12,6 +12,11 @@
import sys
import re
+try:
+ from enum import Enum
+except ImportError:
+ from ThirdParty.enum import Enum
+
from PyQt5.QtCore import pyqtSignal, QFileInfo, Qt, QEvent
from PyQt5.QtGui import QClipboard, QPalette, QFont
from PyQt5.QtWidgets import QDialog, QInputDialog, QApplication, QMenu, \
@@ -83,6 +88,15 @@
return self.__shell
+class ShellHistoryStyle(Enum):
+ """
+ Class defining the shell history styles.
+ """
+ Disabled = 0
+ LinuxStyle = 1
+ WindowsStyle = 2
+
+
class Shell(QsciScintillaCompat):
"""
Class implementing a graphical Python shell.
@@ -90,10 +104,13 @@
A user can enter commands that are executed in the remote
Python interpreter.
- @signal searchStringFound(found) emitted to indicate the search
- result (boolean)
+ @signal searchStringFound(bool) emitted to indicate the search
+ result
+ @signal historyStyleChanged(int) emitted to indicate a change of
+ the history style
"""
searchStringFound = pyqtSignal(bool)
+ historyStyleChanged = pyqtSignal(int)
def __init__(self, dbs, vm, windowedVariant, parent=None):
"""
@@ -127,9 +144,9 @@
"""<b>The Shell Window</b>"""
"""<p>You can use the cursor keys while entering commands."""
""" There is also a history of commands that can be recalled"""
- """ using the up and down cursor keys. Pressing the up or"""
- """ down key after some text has been entered will start an"""
- """ incremental search.</p>"""
+ """ using the up and down cursor keys while holding down the"""
+ """ Ctrl-key. Pressing these keys after some text has been"""
+ """ entered will start an incremental search.</p>"""
"""<p>The shell has some special commands. 'reset' kills the"""
""" shell and starts a new one. 'clear' clears the display"""
""" of the shell window. 'start' is used to switch the shell"""
@@ -152,9 +169,9 @@
""" command while the program being debugged is running.</p>"""
"""<p>You can use the cursor keys while entering commands."""
""" There is also a history of commands that can be recalled"""
- """ using the up and down cursor keys. Pressing the up or"""
- """ down key after some text has been entered will start an"""
- """ incremental search.</p>"""
+ """ using the up and down cursor keys while holding down the"""
+ """ Ctrl-key. Pressing these keys after some text has been"""
+ """ entered will start an incremental search.</p>"""
"""<p>The shell has some special commands. 'reset' kills the"""
""" shell and starts a new one. 'clear' clears the display"""
""" of the shell window. 'start' is used to switch the shell"""
@@ -204,10 +221,11 @@
self.completionText = ""
# Initialize history
- self.historyLists = {}
- self.maxHistoryEntries = Preferences.getShell("MaxHistoryEntries")
- self.history = []
- self.histidx = -1
+ self.__historyLists = {}
+ self.__maxHistoryEntries = Preferences.getShell("MaxHistoryEntries")
+ self.__historyStyle = Preferences.getShell("HistoryStyle")
+ self.__history = []
+ self.__setHistoryIndex()
# remove obsolete shell histories (Python and Ruby)
for clientType in ["Python", "Ruby"]:
Preferences.Prefs.settings.remove("Shell/Histories/" + clientType)
@@ -253,7 +271,8 @@
self.menu.addAction(self.tr('Cut'), self.cut)
self.menu.addAction(self.tr('Copy'), self.copy)
self.menu.addAction(self.tr('Paste'), self.paste)
- self.menu.addMenu(self.hmenu)
+ self.menu.addMenu(self.hmenu).setEnabled(self.isHistoryEnabled())
+
self.menu.addSeparator()
self.menu.addAction(self.tr('Find'), self.__find)
self.menu.addSeparator()
@@ -312,6 +331,8 @@
QsciScintilla.SCI_WORDRIGHTEXTEND: self.extendSelectionWordRight,
QsciScintilla.SCI_VCHOMEEXTEND: self.__QScintillaVCHomeExtend,
QsciScintilla.SCI_LINEENDEXTEND: self.extendSelectionToEOL,
+
+ QsciScintilla.SCI_CANCEL: self.__QScintillaCancel,
}
self.grabGesture(Qt.PinchGesture)
@@ -338,7 +359,7 @@
"""
Public method to shutdown the shell.
"""
- for clientType in self.historyLists:
+ for clientType in self.__historyLists:
self.saveHistory(clientType)
def __bindLexer(self, language='Python3'):
@@ -549,21 +570,54 @@
self.clientCapabilities = cap
if clType != self.clientType:
self.clientType = clType
- self.__bindLexer(clType)
+ self.__bindLexer(self.clientType)
self.__setTextDisplay()
self.__setMargin0()
- self.__setAutoCompletion(clType)
- self.__setCallTips(clType)
+ self.__setAutoCompletion(self.clientType)
+ self.__setCallTips(self.clientType)
self.racEnabled = \
Preferences.getShell("AutoCompletionEnabled") and \
(cap & HasCompleter) > 0
- if clType not in self.historyLists:
+ if self.clientType not in self.__historyLists:
# load history list
- self.loadHistory(clType)
- self.history = self.historyLists[clType]
- self.histidx = -1
+ self.loadHistory(self.clientType)
+ self.__history = self.__historyLists[self.clientType]
+ self.__setHistoryIndex()
+
+ def __setHistoryIndex(self, index=None):
+ """
+ Private method to set the initial history index.
+ @param index index value to be set
+ @type int or None
+ """
+ if index is None:
+ # determine based on history style
+ if self.__historyStyle == ShellHistoryStyle.WindowsStyle:
+ idx = int(Preferences.Prefs.settings.value(
+ "Shell/HistoryIndexes/" + self.clientType, -1))
+ self.__histidx = idx
+ else:
+ self.__histidx = -1
+ else:
+ self.__histidx = index
+ if self.__histidx >= len(self.__history):
+ self.__histidx = -1
+ if self.clientType and \
+ self.__historyStyle == ShellHistoryStyle.WindowsStyle:
+ Preferences.Prefs.settings.setValue(
+ "Shell/HistoryIndexes/" + self.clientType, self.__histidx)
+
+ def __isHistoryIndexValid(self):
+ """
+ Private method to test, if the history index is valid.
+
+ @return flag indicating validity
+ @rtype bool
+ """
+ return (0 <= self.__histidx < len(self.__history))
+
def loadHistory(self, clientType):
"""
Public method to load the history for the given client type.
@@ -572,9 +626,9 @@
"""
hl = Preferences.Prefs.settings.value("Shell/Histories/" + clientType)
if hl is not None:
- self.historyLists[clientType] = hl[-self.maxHistoryEntries:]
+ self.__historyLists[clientType] = hl[-self.__maxHistoryEntries:]
else:
- self.historyLists[clientType] = []
+ self.__historyLists[clientType] = []
def reloadHistory(self):
"""
@@ -582,8 +636,8 @@
type.
"""
self.loadHistory(self.clientType)
- self.history = self.historyLists[self.clientType]
- self.histidx = -1
+ self.__history = self.__historyLists[self.clientType]
+ self.__setHistoryIndex()
def saveHistory(self, clientType):
"""
@@ -591,9 +645,10 @@
@param clientType type of the debug client (string)
"""
- if clientType in self.historyLists:
+ if clientType in self.__historyLists:
Preferences.Prefs.settings.setValue(
- "Shell/Histories/" + clientType, self.historyLists[clientType])
+ "Shell/Histories/" + clientType,
+ self.__historyLists[clientType])
def getHistory(self, clientType):
"""
@@ -604,9 +659,9 @@
@return reference to the history list (list of strings)
"""
if clientType is None:
- return self.history
- elif clientType in self.historyLists:
- return self.historyLists[clientType]
+ return self.__history
+ elif clientType in self.__historyLists:
+ return self.__historyLists[clientType]
else:
return []
@@ -615,23 +670,26 @@
Public slot to clear the current history.
"""
if self.clientType:
- self.historyLists[self.clientType] = []
- self.history = self.historyLists[self.clientType]
+ self.__historyLists[self.clientType] = []
+ self.__history = self.__historyLists[self.clientType]
else:
- self.history = []
- self.histidx = -1
+ self.__history = []
+ self.__setHistoryIndex(index=-1)
def selectHistory(self):
"""
Public slot to select a history entry to execute.
"""
+ current = self.__histidx
+ if current == -1:
+ current = len(self.__history) - 1
cmd, ok = QInputDialog.getItem(
self,
self.tr("Select History"),
self.tr("Select the history entry to execute"
" (most recent shown last)."),
- self.history,
- 0, False)
+ self.__history,
+ current, False)
if ok:
self.__insertHistory(cmd)
@@ -640,11 +698,11 @@
Public slot to show the shell history dialog.
"""
from .ShellHistoryDialog import ShellHistoryDialog
- dlg = ShellHistoryDialog(self.history, self.vm, self)
+ dlg = ShellHistoryDialog(self.__history, self.vm, self)
if dlg.exec_() == QDialog.Accepted:
- self.historyLists[self.clientType] = dlg.getHistory()
- self.history = self.historyLists[self.clientType]
- self.histidx = -1
+ self.__historyLists[self.clientType], idx = dlg.getHistory()
+ self.__history = self.__historyLists[self.clientType]
+ self.__setHistoryIndex(index=idx)
def clearAllHistories(self):
"""
@@ -652,7 +710,7 @@
"""
Preferences.Prefs.settings.beginGroup("Shell/Histories")
for clientType in Preferences.Prefs.settings.childKeys():
- self.historyLists[clientType] = []
+ self.__historyLists[clientType] = []
self.saveHistory(clientType)
Preferences.Prefs.settings.endGroup()
@@ -1343,62 +1401,78 @@
@param cmd QScintilla command
"""
- line, col = self.__getEndPos()
- buf = self.text(line)
- if buf.startswith(sys.ps1):
- buf = buf.replace(sys.ps1, "")
- if buf.startswith(sys.ps2):
- buf = buf.replace(sys.ps2, "")
- if buf and self.incrementalSearchActive:
- if self.incrementalSearchString:
- idx = self.__rsearchHistory(self.incrementalSearchString,
- self.histidx)
- if idx >= 0:
- self.histidx = idx
- self.__useHistory()
+ if self.isHistoryEnabled():
+ line, col = self.__getEndPos()
+ buf = self.text(line)
+ if buf.startswith(sys.ps1):
+ buf = buf.replace(sys.ps1, "")
+ if buf.startswith(sys.ps2):
+ buf = buf.replace(sys.ps2, "")
+ if buf and self.incrementalSearchActive:
+ if self.incrementalSearchString and \
+ buf.startswith(self.incrementalSearchString):
+ idx, found = self.__rsearchHistory(
+ self.incrementalSearchString, self.__histidx)
+ if found and idx >= 0:
+ self.__setHistoryIndex(index=idx)
+ self.__useHistory()
+ else:
+ idx, found = self.__rsearchHistory(buf)
+ if found and idx >= 0:
+ self.__setHistoryIndex(index=idx)
+ self.incrementalSearchString = buf
+ self.__useHistory()
else:
- idx = self.__rsearchHistory(buf)
- if idx >= 0:
- self.histidx = idx
- self.incrementalSearchString = buf
- self.__useHistory()
- else:
- if self.histidx < 0:
- self.histidx = len(self.history)
- if self.histidx > 0:
- self.histidx = self.histidx - 1
+ if self.__histidx < 0:
+ # wrap around
+ self.__setHistoryIndex(index=len(self.__history) - 1)
+ else:
+ self.__setHistoryIndex(index=self.__histidx - 1)
self.__useHistory()
-
+
def __QScintillaHistoryDown(self, cmd):
"""
Private method to handle the Ctrl+Down key.
@param cmd QScintilla command
"""
- line, col = self.__getEndPos()
- buf = self.text(line)
- if buf.startswith(sys.ps1):
- buf = buf.replace(sys.ps1, "")
- if buf.startswith(sys.ps2):
- buf = buf.replace(sys.ps2, "")
- if buf and self.incrementalSearchActive:
- if self.incrementalSearchString:
- idx = self.__searchHistory(
- self.incrementalSearchString, self.histidx)
- if idx >= 0:
- self.histidx = idx
- self.__useHistory()
+ if self.isHistoryEnabled():
+ line, col = self.__getEndPos()
+ buf = self.text(line)
+ if buf.startswith(sys.ps1):
+ buf = buf.replace(sys.ps1, "")
+ if buf.startswith(sys.ps2):
+ buf = buf.replace(sys.ps2, "")
+ if buf and self.incrementalSearchActive:
+ if self.incrementalSearchString and \
+ buf.startswith(self.incrementalSearchString):
+ idx, found = self.__searchHistory(
+ self.incrementalSearchString, self.__histidx)
+ if found and idx >= 0:
+ self.__setHistoryIndex(index=idx)
+ self.__useHistory()
+ else:
+ idx, found = self.__searchHistory(buf)
+ if found and idx >= 0:
+ self.__setHistoryIndex(index=idx)
+ self.incrementalSearchString = buf
+ self.__useHistory()
else:
- idx = self.__searchHistory(buf)
- if idx >= 0:
- self.histidx = idx
- self.incrementalSearchString = buf
- self.__useHistory()
- else:
- if self.histidx >= 0 and self.histidx < len(self.history):
- self.histidx += 1
+ if self.__histidx >= len(self.__history) - 1:
+ # wrap around
+ self.__setHistoryIndex(index=0)
+ else:
+ self.__setHistoryIndex(index=self.__histidx + 1)
self.__useHistory()
-
+
+ def __QScintillaCancel(self):
+ """
+ Private method to handle the ESC command.
+ """
+ if self.incrementalSearchActive:
+ self.__resetIncrementalHistorySearch()
+ self.__insertHistory("")
+
def __QScintillaCharLeftExtend(self):
"""
Private method to handle the Extend Selection Left command.
@@ -1447,12 +1521,18 @@
self.inCommandExecution = True
self.interruptCommandExecution = False
if not cmd:
+ # make sure cmd is a string
cmd = ''
- if len(self.history) == 0 or self.history[-1] != cmd:
- if len(self.history) == self.maxHistoryEntries:
- del self.history[0]
- self.history.append(cmd)
- self.histidx = -1
+ # TODO: change according to history style
+ # Linux - append (i.e. keep as is)
+ # Windows - modify current entry if index not at end, add otherwise
+ if self.isHistoryEnabled():
+ if cmd != "" and (
+ len(self.__history) == 0 or self.__history[-1] != cmd):
+ if len(self.__history) == self.__maxHistoryEntries:
+ del self.__history[0]
+ self.__history.append(cmd)
+ self.__histidx = -1
if cmd.startswith('start '):
if not self.passive:
cmdList = cmd.split(None, 1)
@@ -1522,12 +1602,11 @@
"""
Private method to display a command from the history.
"""
- if self.histidx < len(self.history):
- cmd = self.history[self.histidx]
+ if self.__isHistoryIndexValid():
+ cmd = self.__history[self.__histidx]
else:
cmd = ""
- self.incrementalSearchString = ""
- self.incrementalSearchActive = False
+ self.__resetIncrementalHistorySearch()
self.__insertHistory(cmd)
@@ -1542,40 +1621,58 @@
self.prline, self.lineLength(self.prline))
self.removeSelectedText()
self.__insertText(cmd)
-
+
+ def __resetIncrementalHistorySearch(self):
+ """
+ Private method to reset the incremental history search.
+ """
+ self.incrementalSearchString = ""
+ self.incrementalSearchActive = False
+
def __searchHistory(self, txt, startIdx=-1):
"""
Private method used to search the history.
- @param txt text to match at the beginning (string)
- @param startIdx index to start search from (integer)
- @return index of found entry (integer)
+ @param txt text to match at the beginning
+ @type str
+ @param startIdx index to start search from
+ @type int
+ @return tuple containing the index of found entry and a flag indicating
+ that something was found
+ @rtype tuple of (int, bool)
"""
if startIdx == -1:
idx = 0
else:
idx = startIdx + 1
- while idx < len(self.history) and \
- not self.history[idx].startswith(txt):
+ while idx < len(self.__history) and \
+ not self.__history[idx].startswith(txt):
idx += 1
- return idx
+ found = (idx < len(self.__history) and
+ self.__history[idx].startswith(txt))
+ return idx, found
def __rsearchHistory(self, txt, startIdx=-1):
"""
Private method used to reverse search the history.
- @param txt text to match at the beginning (string)
- @param startIdx index to start search from (integer)
- @return index of found entry (integer)
+ @param txt text to match at the beginning
+ @type str
+ @param startIdx index to start search from
+ @type int
+ @return tuple containing the index of found entry and a flag indicating
+ that something was found
+ @rtype tuple of (int, bool)
"""
if startIdx == -1:
- idx = len(self.history) - 1
+ idx = len(self.__history) - 1
else:
idx = startIdx - 1
while idx >= 0 and \
- not self.history[idx].startswith(txt):
+ not self.__history[idx].startswith(txt):
idx -= 1
- return idx
+ found = idx >= 0 and self.__history[idx].startswith(txt)
+ return idx, found
def focusNextPrevChild(self, nextChild):
"""
@@ -1649,10 +1746,15 @@
self.__setCallTips()
# do the history related stuff
- self.maxHistoryEntries = Preferences.getShell("MaxHistoryEntries")
- for key in list(self.historyLists.keys()):
- self.historyLists[key] = \
- self.historyLists[key][-self.maxHistoryEntries:]
+ self.__maxHistoryEntries = Preferences.getShell("MaxHistoryEntries")
+ for key in list(self.__historyLists.keys()):
+ self.__historyLists[key] = \
+ self.__historyLists[key][-self.__maxHistoryEntries:]
+ self.__historyStyle = Preferences.getShell("HistoryStyle")
+ self.__setHistoryIndex()
+ self.historyStyleChanged.emit(self.__historyStyle)
+ if not self.__windowed:
+ self.hmenu.menuAction().setEnabled(self.isHistoryEnabled())
# do stdout /stderr stuff
showStdOutErr = Preferences.getShell("ShowStdOutErr")
@@ -1898,3 +2000,21 @@
txt, False, caseSensitive, wholeWord, False,
forward=False, line=line, index=index)
self.searchStringFound.emit(ok)
+
+ def historyStyle(self):
+ """
+ Public method to get the shell history style.
+
+ @return shell history style
+ @rtype ShellHistoryStyle
+ """
+ return self.__historyStyle
+
+ def isHistoryEnabled(self):
+ """
+ Public method to check, if the history is enabled.
+
+ @return flag indicating if history is enabled
+ @rtype bool
+ """
+ return self.__historyStyle != ShellHistoryStyle.Disabled
