shell.py

Wxpython Implemented on Windows CE, Source code

        (name, argspec, tip) = self.interp.getCallTip(command)
        if tip:
            dispatcher.send(signal='Shell.calltip', sender=self, calltip=tip)
        if not self.autoCallTip and not forceCallTip:
            return
        if argspec and insertcalltip and self.callTipInsert:
            startpos = self.GetCurrentPos()
            self.write(argspec + ')')
            endpos = self.GetCurrentPos()
            self.SetSelection(endpos, startpos)
        if tip:
            curpos = self.GetCurrentPos()
            tippos = curpos - (len(name) + 1)
            fallback = curpos - self.GetColumn(curpos)
            # In case there isn't enough room, only go back to the
            # fallback.
            tippos = max(tippos, fallback)
            self.CallTipShow(tippos, tip)
    
    def OnCallTipAutoCompleteManually (self, shiftDown):
        """AutoComplete and Calltips manually."""
        if self.AutoCompActive():
            self.AutoCompCancel()
        currpos = self.GetCurrentPos()
        stoppos = self.promptPosEnd

        cpos = currpos
        #go back until '.' is found
        pointavailpos = -1
        while cpos >= stoppos:
            if self.GetCharAt(cpos) == ord ('.'):
                pointavailpos = cpos
                break
            cpos -= 1

        #word from non whitespace until '.'
        if pointavailpos != -1:
            #look backward for first whitespace char
            textbehind = self.GetTextRange (pointavailpos + 1, currpos)
            pointavailpos += 1

            if not shiftDown:
                #call AutoComplete
                stoppos = self.promptPosEnd
                textbefore = self.GetTextRange(stoppos, pointavailpos)
                self.autoCompleteShow(textbefore, len (textbehind))
            else:
                #call CallTips
                cpos = pointavailpos
                begpos = -1
                while cpos > stoppos:
                    if chr(self.GetCharAt(cpos)).isspace():
                        begpos = cpos
                        break
                    cpos -= 1
                if begpos == -1:
                    begpos = cpos
                ctips = self.GetTextRange (begpos, currpos)
                ctindex = ctips.find ('(')
                if ctindex != -1 and not self.CallTipActive():
                    #insert calltip, if current pos is '(', otherwise show it only
                    self.autoCallTipShow(ctips[:ctindex + 1], 
                        self.GetCharAt(currpos - 1) == ord('(') and self.GetCurrentPos() == self.GetTextLength(),
                        True)
                

    def writeOut(self, text):
        """Replacement for stdout."""
        self.write(text)

    def writeErr(self, text):
        """Replacement for stderr."""
        self.write(text)

    def redirectStdin(self, redirect=True):
        """If redirect is true then sys.stdin will come from the shell."""
        if redirect:
            sys.stdin = self.reader
        else:
            sys.stdin = self.stdin

    def redirectStdout(self, redirect=True):
        """If redirect is true then sys.stdout will go to the shell."""
        if redirect:
            sys.stdout = PseudoFileOut(self.writeOut)
        else:
            sys.stdout = self.stdout

    def redirectStderr(self, redirect=True):
        """If redirect is true then sys.stderr will go to the shell."""
        if redirect:
            sys.stderr = PseudoFileErr(self.writeErr)
        else:
            sys.stderr = self.stderr

    def CanCut(self):
        """Return true if text is selected and can be cut."""
        if self.GetSelectionStart() != self.GetSelectionEnd() \
               and self.GetSelectionStart() >= self.promptPosEnd \
               and self.GetSelectionEnd() >= self.promptPosEnd:
            return True
        else:
            return False

    def CanPaste(self):
        """Return true if a paste should succeed."""
        if self.CanEdit() and editwindow.EditWindow.CanPaste(self):
            return True
        else:
            return False

    def CanEdit(self):
        """Return true if editing should succeed."""
        if self.GetSelectionStart() != self.GetSelectionEnd():
            if self.GetSelectionStart() >= self.promptPosEnd \
                   and self.GetSelectionEnd() >= self.promptPosEnd:
                return True
            else:
                return False
        else:
            return self.GetCurrentPos() >= self.promptPosEnd

    def Cut(self):
        """Remove selection and place it on the clipboard."""
        if self.CanCut() and self.CanCopy():
            if self.AutoCompActive():
                self.AutoCompCancel()
            if self.CallTipActive():
                self.CallTipCancel()
            self.Copy()
            self.ReplaceSelection('')

    def Copy(self):
        """Copy selection and place it on the clipboard."""
        if self.CanCopy():
            ps1 = str(sys.ps1)
            ps2 = str(sys.ps2)
            command = self.GetSelectedText()
            command = command.replace(os.linesep + ps2, os.linesep)
            command = command.replace(os.linesep + ps1, os.linesep)
            command = self.lstripPrompt(text=command)
            data = wx.TextDataObject(command)
            self._clip(data)

    def CopyWithPrompts(self):
        """Copy selection, including prompts, and place it on the clipboard."""
        if self.CanCopy():
            command = self.GetSelectedText()
            data = wx.TextDataObject(command)
            self._clip(data)

    def CopyWithPromptsPrefixed(self):
        """Copy selection, including prompts prefixed with four
        spaces, and place it on the clipboard."""
        if self.CanCopy():
            command = self.GetSelectedText()
            spaces = ' ' * 4
            command = spaces + command.replace(os.linesep,
                                               os.linesep + spaces)
            data = wx.TextDataObject(command)
            self._clip(data)

    def _clip(self, data):
        if wx.TheClipboard.Open():
            wx.TheClipboard.UsePrimarySelection(False)
            wx.TheClipboard.SetData(data)
            wx.TheClipboard.Flush()
            wx.TheClipboard.Close()

    def Paste(self):
        """Replace selection with clipboard contents."""
        if self.CanPaste() and wx.TheClipboard.Open():
            ps2 = str(sys.ps2)
            if wx.TheClipboard.IsSupported(wx.DataFormat(wx.DF_TEXT)):
                data = wx.TextDataObject()
                if wx.TheClipboard.GetData(data):
                    self.ReplaceSelection('')
                    command = data.GetText()
                    command = command.rstrip()
                    command = self.fixLineEndings(command)
                    command = self.lstripPrompt(text=command)
                    command = command.replace(os.linesep + ps2, '\n')
                    command = command.replace(os.linesep, '\n')
                    command = command.replace('\n', os.linesep + ps2)
                    self.write(command)
            wx.TheClipboard.Close()


    def PasteAndRun(self):
        """Replace selection with clipboard contents, run commands."""
        text = ''
        if wx.TheClipboard.Open():
            if wx.TheClipboard.IsSupported(wx.DataFormat(wx.DF_TEXT)):
                data = wx.TextDataObject()
                if wx.TheClipboard.GetData(data):
                    text = data.GetText()
            wx.TheClipboard.Close()
        if text:
            self.Execute(text)
            

    def Execute(self, text):
        """Replace selection with text and run commands."""
        ps1 = str(sys.ps1)
        ps2 = str(sys.ps2)
        endpos = self.GetTextLength()
        self.SetCurrentPos(endpos)
        startpos = self.promptPosEnd
        self.SetSelection(startpos, endpos)
        self.ReplaceSelection('')
        text = text.lstrip()
        text = self.fixLineEndings(text)
        text = self.lstripPrompt(text)
        text = text.replace(os.linesep + ps1, '\n')
        text = text.replace(os.linesep + ps2, '\n')
        text = text.replace(os.linesep, '\n')
        lines = text.split('\n')
        commands = []
        command = ''
        for line in lines:
            if line.strip() == ps2.strip():
                # If we are pasting from something like a
                # web page that drops the trailing space
                # from the ps2 prompt of a blank line.
                line = ''
            lstrip = line.lstrip()
            if line.strip() != '' and lstrip == line and \
                    lstrip[:4] not in ['else','elif'] and \
                    lstrip[:6] != 'except':
                # New command.
                if command:
                    # Add the previous command to the list.
                    commands.append(command)
                # Start a new command, which may be multiline.
                command = line
            else:
                # Multiline command. Add to the command.
                command += '\n'
                command += line
        commands.append(command)
        for command in commands:
            command = command.replace('\n', os.linesep + ps2)
            self.write(command)
            self.processLine()


    def wrap(self, wrap=True):
        """Sets whether text is word wrapped."""
        try:
            self.SetWrapMode(wrap)
        except AttributeError:
            return 'Wrapping is not available in this version.'

    def zoom(self, points=0):
        """Set the zoom level.

        This number of points is added to the size of all fonts.  It
        may be positive to magnify or negative to reduce."""
        self.SetZoom(points)



    def LoadSettings(self, config):
        self.autoComplete              = config.ReadBool('Options/AutoComplete', True)
        self.autoCompleteIncludeMagic  = config.ReadBool('Options/AutoCompleteIncludeMagic', True)
        self.autoCompleteIncludeSingle = config.ReadBool('Options/AutoCompleteIncludeSingle', True)
        self.autoCompleteIncludeDouble = config.ReadBool('Options/AutoCompleteIncludeDouble', True)

        self.autoCallTip = config.ReadBool('Options/AutoCallTip', True)
        self.callTipInsert = config.ReadBool('Options/CallTipInsert', True)
        self.SetWrapMode(config.ReadBool('View/WrapMode', True))

        useAA = config.ReadBool('Options/UseAntiAliasing', self.GetUseAntiAliasing())
        self.SetUseAntiAliasing(useAA)
        self.lineNumbers = config.ReadBool('View/ShowLineNumbers', True)
        self.setDisplayLineNumbers (self.lineNumbers)
        zoom = config.ReadInt('View/Zoom/Shell', -99)
        if zoom != -99:
            self.SetZoom(zoom)


    
    def SaveSettings(self, config):
        config.WriteBool('Options/AutoComplete', self.autoComplete)
        config.WriteBool('Options/AutoCompleteIncludeMagic', self.autoCompleteIncludeMagic)
        config.WriteBool('Options/AutoCompleteIncludeSingle', self.autoCompleteIncludeSingle)
        config.WriteBool('Options/AutoCompleteIncludeDouble', self.autoCompleteIncludeDouble)
        config.WriteBool('Options/AutoCallTip', self.autoCallTip)
        config.WriteBool('Options/CallTipInsert', self.callTipInsert)
        config.WriteBool('Options/UseAntiAliasing', self.GetUseAntiAliasing())
        config.WriteBool('View/WrapMode', self.GetWrapMode())
        config.WriteBool('View/ShowLineNumbers', self.lineNumbers)
        config.WriteInt('View/Zoom/Shell', self.GetZoom())



## NOTE: The DnD of file names is disabled until I can figure out how
## best to still allow DnD of text.


## #seb : File drag and drop
## class FileDropTarget(wx.FileDropTarget):
##     def __init__(self, obj):
##         wx.FileDropTarget.__init__(self)
##         self.obj = obj
##     def OnDropFiles(self, x, y, filenames):
##         if len(filenames) == 1:
##             txt = 'r\"%s\"' % filenames[0]
##         else:
##             txt = '( '
##             for f in filenames:
##                 txt += 'r\"%s\" , ' % f
##             txt += ')'
##         self.obj.AppendText(txt)
##         pos = self.obj.GetCurrentPos()
##         self.obj.SetCurrentPos( pos )
##         self.obj.SetSelection( pos, pos )



## class TextAndFileDropTarget(wx.DropTarget):
##     def __init__(self, shell):
##         wx.DropTarget.__init__(self)
##         self.shell = shell
##         self.compdo = wx.DataObjectComposite()
##         self.textdo = wx.TextDataObject()
##         self.filedo = wx.FileDataObject()
##         self.compdo.Add(self.textdo)
##         self.compdo.Add(self.filedo, True)
        
##         self.SetDataObject(self.compdo)
                
##     def OnDrop(self, x, y):
##         return True
    
##     def OnData(self, x, y, result):
##         self.GetData()
##         if self.textdo.GetTextLength() > 1:
##             text = self.textdo.GetText()
##             # *** Do somethign with the dragged text here...
##             self.textdo.SetText('')
##         else:
##             filenames = str(self.filename.GetFilenames())
##             if len(filenames) == 1:
##                 txt = 'r\"%s\"' % filenames[0]
##             else:
##                 txt = '( '
##                 for f in filenames:
##                     txt += 'r\"%s\" , ' % f
##                 txt += ')'
##             self.shell.AppendText(txt)
##             pos = self.shell.GetCurrentPos()
##             self.shell.SetCurrentPos( pos )
##             self.shell.SetSelection( pos, pos )

##         return result