Ejemplo n.º 1
0
    def applySettings(self):
        """Apply editor and lexer settings
        """
        if self.qscilexer is None:
            return

        # Apply fonts and colors
        config = core.config()["Editor"]
        defaultFont = QFont(config["DefaultFont"], config["DefaultFontSize"])
        self.qscilexer.setDefaultFont(defaultFont)
        for i in range(128):
            if self.qscilexer.description(i):
                font = self.qscilexer.font(i)
                font.setFamily(defaultFont.family())
                font.setPointSize(defaultFont.pointSize())
                self.qscilexer.setFont(font, i)
                # lexer->setColor(lexer->defaultColor(i), i);  # TODO configure lexer colors
                # lexer->setEolFill(lexer->defaultEolFill(i), i);
                # lexer->setPaper(lexer->defaultPaper(i), i);
                if config["DefaultDocumentColours"]:
                    self.qscilexer.setPaper(QColor(config["DefaultDocumentPaper"]), i)
                    self.qscilexer.setEolFill(True, i)
                else:
                    self.qscilexer.setPaper(self.qscilexer.defaultPaper(i), i)
                    self.qscilexer.setEolFill(self.qscilexer.defaultEolFill(i), i)

        if config["DefaultDocumentColours"]:
            self.qscilexer.setColor(QColor(config["DefaultDocumentPen"]), 0)
        else:
            self.qscilexer.setColor(self.qscilexer.defaultColor(0), 0)
Ejemplo n.º 2
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 def zoomTo( self, zoomFactor ):
     " Scales the font in accordance to the given zoom factor "
     font = QFont( GlobalData().skin.nolexerFont )
     newPointSize = font.pointSize() + zoomFactor
     font.setPointSize( newPointSize )
     self.__text.setFont( font )
     return
Ejemplo n.º 3
0
 def minimumSizeHint(self):
     font = QFont(self.font())
     font.setPointSize(font.pointSize() - 1)
     fm = QFontMetricsF(font)
     return QSize(fm.width(FractionSlider.WSTRING) *
                  self.__denominator,
                  (fm.height() * 4) + FractionSlider.YMARGIN)
Ejemplo n.º 4
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 def zoomTo(self, zoomFactor):
     " Scales the font in accordance to the given zoom factor "
     font = QFont(GlobalData().skin.nolexerFont)
     newPointSize = font.pointSize() + zoomFactor
     font.setPointSize(newPointSize)
     self.__text.setFont(font)
     return
Ejemplo n.º 5
0
 def detectRevisionMarginWidth( self ):
     """ Caculates the margin width depending on
         the margin font and the current zoom """
     skin = GlobalData().skin
     font = QFont( skin.lineNumFont )
     font.setPointSize( font.pointSize() + self.getZoom() )
     fontMetrics = QFontMetrics( font, self )
     return fontMetrics.width( 'W' * self.__maxLength ) + 3
Ejemplo n.º 6
0
 def detectRevisionMarginWidth(self):
     """ Caculates the margin width depending on
         the margin font and the current zoom """
     skin = GlobalData().skin
     font = QFont(skin.lineNumFont)
     font.setPointSize(font.pointSize() + self.getZoom())
     fontMetrics = QFontMetrics(font, self)
     return fontMetrics.width('W' * self.__maxLength) + 3
Ejemplo n.º 7
0
Archivo: mplayer.py Proyecto: Ptaah/Ekd
	def minimumSizeHint(self):
		"Pour être sûr que le texte du chrono ne soit pas tronqué"
		font = QFont(self.font())
		font.setPointSize(font.pointSize() - 1)
		fm = QFontMetricsF(font)
		l = fm.width(TracerChrono.TAILLE*2) # + 10.
		L = fm.height() + 2.
		return QSize(l, L)
Ejemplo n.º 8
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 def zoomTo( self, zoomFactor ):
     """ Scales the font in accordance to the given zoom factor.
         It is mostly used in diff viewers """
     font = QFont( GlobalData().skin.nolexerFont )
     origPointSize = font.pointSize()
     newPointSize = origPointSize + zoomFactor
     self.setTextSizeMultiplier( float( newPointSize ) /
                                 float( origPointSize ) )
     return
Ejemplo n.º 9
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def setFont(o, v):
    v = QFont(v)
    try:
        name = v.toString().split(',')[0]
    except (IndexError, ):
        name = v.rawName()
    size = v.pointSize()
    bold = 'Bold' if v.bold() else ''
    o.setFont(v)
    o.setText('%s %s %s' % (name, size, bold))
Ejemplo n.º 10
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 def paintEvent(self, event=None):
     font = QFont(self.font())
     font.setPointSize(font.pointSize() - 1)
     fm = QFontMetricsF(font)
     fracWidth = fm.width(FractionSlider.WSTRING)
     indent = fm.boundingRect("9").width() / 2.0
     if not X11:
         fracWidth *= 1.5
     span = self.width() - (FractionSlider.XMARGIN * 2)
     value = self.__numerator / float(self.__denominator)
     painter = QPainter(self)
     painter.setRenderHint(QPainter.Antialiasing)
     painter.setRenderHint(QPainter.TextAntialiasing)
     painter.setPen(self.palette().color(QPalette.Mid))
     painter.setBrush(self.palette().brush(
             QPalette.AlternateBase))
     painter.drawRect(self.rect())
     segColor = QColor(Qt.green).dark(120)
     segLineColor = segColor.dark()
     painter.setPen(segLineColor)
     painter.setBrush(segColor)
     painter.drawRect(FractionSlider.XMARGIN,
                      FractionSlider.YMARGIN, span, fm.height())
     textColor = self.palette().color(QPalette.Text)
     segWidth = span / self.__denominator
     segHeight = fm.height() * 2
     nRect = fm.boundingRect(FractionSlider.WSTRING)
     x = FractionSlider.XMARGIN
     yOffset = segHeight + fm.height()
     for i in range(self.__denominator + 1):
         painter.setPen(segLineColor)
         painter.drawLine(x, FractionSlider.YMARGIN, x, segHeight)
         painter.setPen(textColor)
         y = segHeight
         rect = QRectF(nRect)
         rect.moveCenter(QPointF(x, y + fm.height() / 2.0))
         painter.drawText(rect, Qt.AlignCenter,
                          QString.number(i))
         y = yOffset
         rect.moveCenter(QPointF(x, y + fm.height() / 2.0))
         painter.drawText(rect, Qt.AlignCenter,
                          QString.number(self.__denominator))
         painter.drawLine(QPointF(rect.left() + indent, y),
                          QPointF(rect.right() - indent, y))
         x += segWidth
     span = int(span)
     y = FractionSlider.YMARGIN - 0.5
     triangle = [QPointF(value * span, y),
                 QPointF((value * span) +
                         (2 * FractionSlider.XMARGIN), y),
                 QPointF((value * span) +
                         FractionSlider.XMARGIN, fm.height())]
     painter.setPen(Qt.yellow)
     painter.setBrush(Qt.darkYellow)
     painter.drawPolygon(QPolygonF(triangle))
Ejemplo n.º 11
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 def paintEvent(self, event=None):
     font = QFont(self.font())
     font.setPointSize(font.pointSize() - 1)
     fm = QFontMetricsF(font)
     fracWidth = fm.width(FractionSlider.WSTRING)
     indent = fm.boundingRect("9").width() / 2.0
     if not X11:
         fracWidth *= 1.5
     span = self.width() - (FractionSlider.XMARGIN * 2)
     value = self.__numerator / float(self.__denominator)
     painter = QPainter(self)
     painter.setRenderHint(QPainter.Antialiasing)
     painter.setRenderHint(QPainter.TextAntialiasing)
     painter.setPen(self.palette().color(QPalette.Mid))
     painter.setBrush(self.palette().brush(
             QPalette.AlternateBase))
     painter.drawRect(self.rect())
     segColor = QColor(Qt.green).dark(120)
     segLineColor = segColor.dark()
     painter.setPen(segLineColor)
     painter.setBrush(segColor)
     painter.drawRect(FractionSlider.XMARGIN,
                      FractionSlider.YMARGIN, span, fm.height())
     textColor = self.palette().color(QPalette.Text)
     segWidth = span / self.__denominator
     segHeight = fm.height() * 2
     nRect = fm.boundingRect(FractionSlider.WSTRING)
     x = FractionSlider.XMARGIN
     yOffset = segHeight + fm.height()
     for i in range(self.__denominator + 1):
         painter.setPen(segLineColor)
         painter.drawLine(x, FractionSlider.YMARGIN, x, segHeight)
         painter.setPen(textColor)
         y = segHeight
         rect = QRectF(nRect)
         rect.moveCenter(QPointF(x, y + fm.height() / 2.0))
         painter.drawText(rect, Qt.AlignCenter,
                          QString.number(i))
         y = yOffset
         rect.moveCenter(QPointF(x, y + fm.height() / 2.0))
         painter.drawText(rect, Qt.AlignCenter,
                          QString.number(self.__denominator))
         painter.drawLine(QPointF(rect.left() + indent, y),
                          QPointF(rect.right() - indent, y))
         x += segWidth
     span = int(span)
     y = FractionSlider.YMARGIN - 0.5
     triangle = [QPointF(value * span, y),
                 QPointF((value * span) +
                         (2 * FractionSlider.XMARGIN), y),
                 QPointF((value * span) +
                         FractionSlider.XMARGIN, fm.height())]
     painter.setPen(Qt.yellow)
     painter.setBrush(Qt.darkYellow)
     painter.drawPolygon(QPolygonF(triangle))
Ejemplo n.º 12
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 def set_font(self, font):
     """Set shell font"""
     if self.lexer() is None:
         self.setFont(font)
     else:
         lexer = self.lexer()
         for style in range(16):
             font_i = QFont(font)
             if font.weight() == QFont.Normal:
                 font_i.setWeight(lexer.defaultFont(style).weight())
             lexer.setFont(font_i, style)
         self.setLexer(self.lexer())
     margin_font = QFont(font)
     margin_font.setPointSize(margin_font.pointSize()-1)
     self.setMarginsFont(margin_font)
Ejemplo n.º 13
0
    def loadHistoryData(self):      
        tabledata = self.history.toList()   
        self.tablemodel = BeeralyzerTableModel(tabledata)
        self.historyTableView.setModel(self.tablemodel)
        self.historyTableView.setShowGrid(True)

        font = QFont(self.historTableFontFamily, self.historTableFontSize)
        self.displayHistoryTableFont(font.family(), font.pointSize())
        self.historyTableView.setFont(font)
        vh = self.historyTableView.verticalHeader()
        vh.setVisible(True)
        hh = self.historyTableView.horizontalHeader()
        hh.setStretchLastSection(True)
        self.historyTableView.setSortingEnabled(True)   
        self.historyTableView.resizeColumnsToContents()
Ejemplo n.º 14
0
 def test_1(self):
     font = QFont("Arial", 88)
     
     def continueFunc(dialog):
         page = dialog._pageForItem["Editor/Font"]
         
         page.lFont.setFont(font)
         
         QTest.keyClick(dialog, Qt.Key_Enter)
     
     self.openSettings(continueFunc)
     
     self.assertEqual(core.config()['Qutepart']['Font']['Family'], font.family())
     self.assertEqual(core.config()['Qutepart']['Font']['Size'], font.pointSize())
     
     self.assertEqual(core.workspace().currentDocument().qutepart.font(), font)
Ejemplo n.º 15
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 def setTimestampMarginWidth(self):
     " Sets the timestamp margin width "
     settings = Settings()
     if settings.ioconsoleshowmargin:
         skin = GlobalData().skin
         font = QFont(skin.ioconsolemarginFont)
         font.setPointSize(font.pointSize() + settings.zoom)
         # The second parameter of the QFontMetrics is essential!
         # If it is not there then the width is not calculated properly.
         fontMetrics = QFontMetrics(font, self)
         # W is for extra space at the right of the timestamp
         width = fontMetrics.width('88:88:88.888W')
         self.setMarginWidth(self.TIMESTAMP_MARGIN, width)
     else:
         self.setMarginWidth(self.TIMESTAMP_MARGIN, 0)
     return
Ejemplo n.º 16
0
 def setTimestampMarginWidth( self ):
     " Sets the timestamp margin width "
     settings = Settings()
     if settings.ioconsoleshowmargin:
         skin = GlobalData().skin
         font = QFont( skin.ioconsolemarginFont )
         font.setPointSize( font.pointSize() + settings.zoom )
         # The second parameter of the QFontMetrics is essential!
         # If it is not there then the width is not calculated properly.
         fontMetrics = QFontMetrics( font, self )
         # W is for extra space at the right of the timestamp
         width = fontMetrics.width( '88:88:88.888W' )
         self.setMarginWidth( self.TIMESTAMP_MARGIN, width )
     else:
         self.setMarginWidth( self.TIMESTAMP_MARGIN, 0 )
     return
Ejemplo n.º 17
0
class ItemPrintDatasource:
    # If we want to print tables and trees with a good code re-use, we've got to abstract away the
    # fact that trees have nodes and stuff and start treating it as rows and columns, with some
    # cells having more indentation than others. That's what this class is about.:
    def __init__(self, printViewModel, baseFont):
        self.printViewModel = printViewModel # From core.gui.transaction_print
        self._rowFont = QFont(baseFont)
        self._splitFont = QFont(baseFont)
        self._splitFont.setPointSize(self._splitFont.pointSize()-2)
        self._headerFont = QFont(self._rowFont)
        self._headerFont.setBold(True)
    
    def columnCount(self):
        """Returns the number of columns *to print*."""
        raise NotImplementedError()
    
    def rowCount(self):
        """Returns the number of rows *to print*."""
        raise NotImplementedError()
    
    def splitCount(self, rowIndex):
        raise NotImplementedError()
    
    def splitValues(self, rowIndex, splitIndex):
        raise NotImplementedError()
    
    def data(self, rowIndex, colIndex, role):
        """Returns model data for the index at the *printable* (rowIndex, colIndex) cell."""
        raise NotImplementedError()
    
    def columnAtIndex(self, colIndex):
        """Returns the Column instance at index `colIndex`"""
        raise NotImplementedError()
    
    def indentation(self, rowIndex, colIndex):
        """Returns the indentation pixels for the (rowIndex, colIndex)."""
        return 0
    
    def rowFont(self):
        return self._rowFont
    
    def splitFont(self):
        return self._splitFont
    
    def headerFont(self):
        return self._headerFont
Ejemplo n.º 18
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 def paintEvent(self, event):
     bgcol = QColor('#111')
     if self.panic:
         fgcol = QColor('#e11')
     else:
         fgcol = QColor('#ddd')
     # Size and shit
     w, h = self.width(), self.height()
     minsize = min(w,h)*self.scale
     arcwidth = minsize*0.1
     minsize *= 0.86
     marginx = (w-minsize)/2
     marginy = (h-minsize)/2
     # Start drawing shit
     painter = QPainter(self)
     painter.setRenderHints(QPainter.Antialiasing | QPainter.TextAntialiasing)
     painter.setPen(QPen(fgcol, arcwidth, cap=Qt.FlatCap))
     #font = QFont('sv basic manual')
     font = QFont('bank gothic')
     font.setPointSize(get_font_size(font, minsize-2*arcwidth))
     smallfont = QFont(font)
     smallfont.setPointSizeF(font.pointSize()/2)
     painter.fillRect(QRectF(0,0,w,h), bgcol)
     # Timer dial thingy
     painter.setOpacity(0.05)
     painter.drawArc(marginx,marginy, minsize,minsize, 0, 5760)
     painter.setOpacity(1)
     arclength = min(1, self.totalseconds/self.panictime) * 5760
     painter.drawArc(marginx,marginy, minsize,minsize, 90*16, -arclength)
     # Timer text
     painter.setFont(font)
     textoptions = QtGui.QTextOption(Qt.AlignCenter)
     painter.drawText(QRectF(marginx, marginy, minsize, minsize),
                      self.get_text(0), textoptions)
     painter.setFont(smallfont)
     painter.setOpacity(0.5)
     painter.drawText(QRectF(marginx, marginy+minsize*0.4, minsize, minsize/2),
                      self.get_text(1), textoptions)
     #painter.setOpacity(0.15)
     #painter.drawText(QRectF(marginx, marginy+minsize*0.05, minsize, minsize/2),
     #                 self.get_text(2), textoptions)
     painter.end()
Ejemplo n.º 19
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 def setLanguage( self, language ):
     self._language = language
     
     # grab the language from the lang module if it is a string
     if ( language and type(language) != XLanguage ):
         language = XLanguage.byName(language)
         
     # collect the language's lexer
     if ( language ):
         lexer = language.createLexer(self, self._colorSet)
     else:
         lexer = None
     
     if ( lexer ):
         self.setLexer(lexer)
         lexer.setFont(self.font())
         mfont = QFont(self.font())
         mfont.setPointSize(mfont.pointSize() - 2)
         self.setMarginsFont(mfont)
     else:
         self.setLexer(None)
     
     self.setColorSet(self._colorSet)
Ejemplo n.º 20
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class ConfigDialog(QDialog):
    def __init__(self, parent=None):
        QDialog.__init__(self, parent)
        self._layout = QVBoxLayout(self)
        self._tabdialog = QTabWidget(self)
        self._layout.addWidget(self._tabdialog)
        w = _config_dialog.Ui_config_dialog()
        w.setupUi(self._tabdialog)
        self.widgets = w
        
        self._buttonbox = QDialogButtonBox(QDialogButtonBox.Save|QDialogButtonBox.Cancel)
        self._buttonbox.setParent(self)
        signal_connect(self._buttonbox, SIGNAL("accepted()"), self.accept)
        signal_connect(self._buttonbox, SIGNAL("rejected()"), self.reject)
        self._layout.addWidget(self._buttonbox)
        
        self._layout.setContentsMargins(3,3,3,3)
        
        self.font = QFont()
        self.color = QColor()
        
        self.config = yobot_interfaces.component_registry.get_component("client-config")
        
        self.account_items = {}
        
        signal_connect(w.account_add, SIGNAL("clicked()"), lambda: self.add_modify_account(add=True))
        signal_connect(w.account_edit, SIGNAL("clicked()"), lambda: self.add_modify_account(add=False))
        signal_connect(w.account_del, SIGNAL("clicked()"), self.remove_account)
        
        signal_connect(w.select_color, SIGNAL("clicked()"), lambda: self.change_formatting(color=True))
        signal_connect(w.select_font, SIGNAL("clicked()"), lambda: self.change_formatting(font=True))
        
        signal_connect(w.agent_address, SIGNAL("editingFinished()"), self.change_agent)
        self.connect_global_bool(w.html_relsize, "appearance", "use_html_relsize")
        self.connect_global_bool(w.show_joinpart, "appearance", "show_joinpart")
        self.input_validated = True
        
        self.setWindowTitle("Yobot Configuration")
        
    def connect_global_bool(self, widget, dictname, optname, default=False):
        signal_connect(widget, SIGNAL("toggled(bool)"),
                       lambda b: self.config.globals.setdefault(dictname, {}).__setitem__(optname, b))
        
    def load_settings(self):
        w = self.widgets
        if not self.config:
            log_warn("config object not available! bailing")
            return
        #for font..
        appearance = self.config.globals.setdefault("appearance", {})
        family = appearance.get("font_family", None)
        size = appearance.get("font_size", None)
        color = appearance.get("font_color", None)
        
        if family: self.font.setFamily(family)
        if size: self.font.setPointSize(size)
        if color: self.color.setNamedColor(color)
        
        bold = appearance.get("font_bold", False)
        italic = appearance.get("font_italic", False)
        underline = appearance.get("font_underline", False)
        html_relsize = appearance.get("use_html_relsize", False)
        show_joinpart = appearance.get("show_joinpart", False)
        
        self.font.setBold(bold)
        self.font.setItalic(italic)
        self.font.setUnderline(underline)
        w.html_relsize.setChecked(html_relsize)
        w.show_joinpart.setChecked(show_joinpart)
        
        self.change_formatting()
        
        #for the agent...
        agent = self.config.globals.get("agent_address", None)
        if agent: w.agent_address.setText(agent)
        self.change_agent()
        #for accounts:
        for a in self.config.accounts:
            log_warn("got account", a)
            if a.get("name", None) and a.get("improto", None):
                #get name and icon
                name, icon = getProtoIconAndName(getattr(yobotproto, a["improto"], ""))
                log_debug(icon, name)
                i = QTreeWidgetItem((a["name"], name))
                i.setIcon(1, icon)
                i.setData(0, ITEM_PLACEHOLDER_ROLE, a)
                self.account_items[i] = a
                self.widgets.accounts.addTopLevelItem(i)
                
    
    def remove_account(self):
        #get current item:
        w = self.widgets
        item = w.accounts.currentItem()
        
        #get the index (ugh.. this is tedious)
        itemindex = w.accounts.indexOfTopLevelItem(item)
        if itemindex == -1:
            log_err("couldn't get index!")
            return
        
        account = self.account_items[item]
        #remove the item from the widget:
        w.accounts.takeTopLevelItem(itemindex)
        
        #find the account in our global config list
        index = -1
        for i in xrange(0, len(self.config.accounts)):
            a = self.config.accounts[i]
            if str(a["name"]) == str(account["name"]) and str(a["improto"]) == str(account["improto"]):
                index = i
                break
            else:
                pass
        if index >= 0:
            log_debug("index:", index)
            self.config.accounts.pop(index)
        #finally, remove it from the mapping
        self.account_items.pop(item)
    
    def add_modify_account(self, add=False):
        dlg = AccountSettingsDialog(self)
        if not add:
            item = self.widgets.accounts.currentItem()
            if not item:
                return
            account = self.account_items.get(item)
            if not account:
                return
            #account = item.data(0, ITEM_PLACEHOLDER_ROLE).toPyObject()
            dlg.fill_from(account)
        else:
            item = QTreeWidgetItem()
        result = dlg.exec_()
        
        if not result == QDialog.Accepted:
            return
        new_a = dlg.values
        
        item.setText(0, new_a["name"])
        #get icon and name...
        name, icon = getProtoIconAndName(getattr(yobotproto, new_a["improto"], -1))
        item.setText(1, name)
        item.setIcon(1, icon)
        if add:
            if self.account_exists(new_a):
                print "account already exists.. not adding"
                return
            item.setData(0, ITEM_PLACEHOLDER_ROLE, new_a)
            self.widgets.accounts.addTopLevelItem(item)
            self.config.accounts.append(new_a)
        else:
            account.update(new_a)
            
    def account_exists(self, d):
        for a in self.config.accounts:
            if d["name"] == a["name"] and d["improto"] == a["improto"]:
                return True
        return False
    
    def change_formatting(self, color=False, font=False):
        if color:
            _color = QColorDialog.getColor(self.color, self, "Select Color")
            if _color.isValid():
                self.color = _color
        elif font:
            self.font, _ = QFontDialog.getFont(self.font, self, "Select Font")
            
        widgetformatter(self.widgets.sample_text, self.font, self.color,
                        klass="QPlainTextEdit")
        
        #now, change the config objects..
        fmt = self.config.globals["appearance"]
        fmt.update({
            "font_family":str(self.font.family()),
            "font_size":int(self.font.pointSize()),
            "font_color":str(self.color.name()),
            "font_bold":bool(self.font.bold()),
            "font_italic":bool(self.font.italic()),
            "font_underline":bool(self.font.underline())
        })
    
    def change_agent(self):
        #bah.. the same boring thing as always
        s = str(self.widgets.agent_address.text())
        if len(s.rsplit(":", 1)) == 2 and not str.isdigit(s.rsplit(":",1)[1]):
            self.input_validated = False
            self.widgets.agent_address.setStyleSheet("background-color:red;")
        else:
            self.widgets.agent_address.setStyleSheet("background-color:green")
            if s:
                self.config.globals["agent_address"] = str(s)
            self.input_validated = True
            
            
    
    def accept(self):
        #do some stuff first, like save
        if self.input_validated:
            self.config.save()
            QDialog.accept(self)
        else:
            QErrorMessage(self).showMessage("Bad input.. (somewhere?)")
Ejemplo n.º 21
0
class TextEditBaseWidget(QPlainTextEdit, BaseEditMixin):
    """Text edit base widget"""
    BRACE_MATCHING_SCOPE = ('sof', 'eof')
    CELL_SEPARATORS = ('#%%', '# %%', '# <codecell>')
    
    def __init__(self, parent=None):
        QPlainTextEdit.__init__(self, parent)
        BaseEditMixin.__init__(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        
        self.extra_selections_dict = {}
        
        self.connect(self, SIGNAL('textChanged()'), self.changed)
        self.connect(self, SIGNAL('cursorPositionChanged()'),
                     self.cursor_position_changed)
        
        self.indent_chars = " "*4
        
        # Code completion / calltips
        if parent is not None:
            mainwin = parent
            while not isinstance(mainwin, QMainWindow):
                mainwin = mainwin.parent()
                if mainwin is None:
                    break
            if mainwin is not None:
                parent = mainwin
        self.completion_widget = CompletionWidget(self, parent)
        self.codecompletion_auto = False
        self.codecompletion_case = True
        self.codecompletion_single = False
        self.codecompletion_enter = False
        self.calltips = True
        self.calltip_position = None
        self.calltip_size = 600
        self.calltip_font = QFont()
        self.completion_text = ""
        
        # Highlight current line color
        self.currentline_color = QColor(Qt.red).lighter(190)

        # Brace matching
        self.bracepos = None
        self.matched_p_color = QColor(Qt.green)
        self.unmatched_p_color = QColor(Qt.red)
        
    def setup_calltips(self, size=None, font=None):
        self.calltip_size = size
        self.calltip_font = font
    
    def setup_completion(self, size=None, font=None):
        self.completion_widget.setup_appearance(size, font)
        
    def set_indent_chars(self, indent_chars):
        self.indent_chars = indent_chars
        
    def set_palette(self, background, foreground):
        """
        Set text editor palette colors:
        background color and caret (text cursor) color
        """
        palette = QPalette()
        palette.setColor(QPalette.Base, background)
        palette.setColor(QPalette.Text, foreground)
        self.setPalette(palette)


    #------Line number area
    def get_linenumberarea_width(self):
        """Return line number area width"""
        # Implemented in CodeEditor, but needed here for completion widget
        return 0


    #------Extra selections
    def get_extra_selections(self, key):
        return self.extra_selections_dict.get(key, [])

    def set_extra_selections(self, key, extra_selections):
        self.extra_selections_dict[key] = extra_selections
        
    def update_extra_selections(self):
        extra_selections = []
        for key, extra in list(self.extra_selections_dict.items()):
            if key == 'current_line':
                # Python 3 compatibility (weird): current line has to be 
                # highlighted first
                extra_selections = extra + extra_selections
            else:
                extra_selections += extra
        self.setExtraSelections(extra_selections)
        
    def clear_extra_selections(self, key):
        self.extra_selections_dict[key] = []
        self.update_extra_selections()
        
        
    def changed(self):
        """Emit changed signal"""
        self.emit(SIGNAL('modificationChanged(bool)'),
                  self.document().isModified())


    #------Highlight current line
    def highlight_current_line(self):
        """Highlight current line"""
        selection = QTextEdit.ExtraSelection()
#        selection.format.setProperty(QTextFormat.FullWidthSelection,
#                                     QVariant(True))
        selection.format.setBackground(self.currentline_color)
        selection.cursor = self.textCursor()
        selection.cursor.clearSelection()
        self.set_extra_selections('current_line', [selection])
        self.update_extra_selections()

    def unhighlight_current_line(self):
        """Unhighlight current line"""
        self.clear_extra_selections('current_line')


    #------Brace matching
    def find_brace_match(self, position, brace, forward):
        start_pos, end_pos = self.BRACE_MATCHING_SCOPE
        if forward:
            bracemap = {'(': ')', '[': ']', '{': '}'}
            text = self.get_text(position, end_pos)
            i_start_open = 1
            i_start_close = 1
        else:
            bracemap = {')': '(', ']': '[', '}': '{'}
            text = self.get_text(start_pos, position)
            i_start_open = len(text)-1
            i_start_close = len(text)-1

        while True:
            if forward:
                i_close = text.find(bracemap[brace], i_start_close)
            else:
                i_close = text.rfind(bracemap[brace], 0, i_start_close+1)
            if i_close > -1:
                if forward:
                    i_start_close = i_close+1
                    i_open = text.find(brace, i_start_open, i_close)
                else:
                    i_start_close = i_close-1
                    i_open = text.rfind(brace, i_close, i_start_open+1)
                if i_open > -1:
                    if forward:
                        i_start_open = i_open+1
                    else:
                        i_start_open = i_open-1
                else:
                    # found matching brace
                    if forward:
                        return position+i_close
                    else:
                        return position-(len(text)-i_close)
            else:
                # no matching brace
                return
    
    def __highlight(self, positions, color=None, cancel=False):
        if cancel:
            self.clear_extra_selections('brace_matching')
            return
        extra_selections = []
        for position in positions:
            if position > self.get_position('eof'):
                return
            selection = QTextEdit.ExtraSelection()
            selection.format.setBackground(color)
            selection.cursor = self.textCursor()
            selection.cursor.clearSelection()
            selection.cursor.setPosition(position)
            selection.cursor.movePosition(QTextCursor.NextCharacter,
                                          QTextCursor.KeepAnchor)
            extra_selections.append(selection)
        self.set_extra_selections('brace_matching', extra_selections)
        self.update_extra_selections()

    def cursor_position_changed(self):
        """Brace matching"""
        if self.bracepos is not None:
            self.__highlight(self.bracepos, cancel=True)
            self.bracepos = None
        cursor = self.textCursor()
        if cursor.position() == 0:
            return
        cursor.movePosition(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        text = to_text_string(cursor.selectedText())
        pos1 = cursor.position()
        if text in (')', ']', '}'):
            pos2 = self.find_brace_match(pos1, text, forward=False)
        elif text in ('(', '[', '{'):
            pos2 = self.find_brace_match(pos1, text, forward=True)
        else:
            return
        if pos2 is not None:
            self.bracepos = (pos1, pos2)
            self.__highlight(self.bracepos, color=self.matched_p_color)
        else:
            self.bracepos = (pos1,)
            self.__highlight(self.bracepos, color=self.unmatched_p_color)


    #-----Widget setup and options
    def set_codecompletion_auto(self, state):
        """Set code completion state"""
        self.codecompletion_auto = state
        
    def set_codecompletion_case(self, state):
        """Case sensitive completion"""
        self.codecompletion_case = state
        self.completion_widget.case_sensitive = state
        
    def set_codecompletion_single(self, state):
        """Show single completion"""
        self.codecompletion_single = state
        self.completion_widget.show_single = state
        
    def set_codecompletion_enter(self, state):
        """Enable Enter key to select completion"""
        self.codecompletion_enter = state
        self.completion_widget.enter_select = state
        
    def set_calltips(self, state):
        """Set calltips state"""
        self.calltips = state

    def set_wrap_mode(self, mode=None):
        """
        Set wrap mode
        Valid *mode* values: None, 'word', 'character'
        """
        if mode == 'word':
            wrap_mode = QTextOption.WrapAtWordBoundaryOrAnywhere
        elif mode == 'character':
            wrap_mode = QTextOption.WrapAnywhere
        else:
            wrap_mode = QTextOption.NoWrap
        self.setWordWrapMode(wrap_mode)
        
        
    #------Reimplementing Qt methods
    def copy(self):
        """
        Reimplement Qt method
        Copy text to clipboard with correct EOL chars
        """
        QApplication.clipboard().setText(self.get_selected_text())
        

    #------Text: get, set, ...
    def get_selection_as_executable_code(self):
        """Return selected text as a processed text,
        to be executable in a Python/IPython interpreter"""
        ls = self.get_line_separator()
        
        _indent = lambda line: len(line)-len(line.lstrip())
        
        line_from, line_to = self.get_selection_bounds()
        text = self.get_selected_text()
        if not text:
            return

        lines = text.split(ls)
        if len(lines) > 1:
            # Multiline selection -> eventually fixing indentation
            original_indent = _indent(self.get_text_line(line_from))
            text = (" "*(original_indent-_indent(lines[0])))+text
            
        # If there is a common indent to all lines, find it.
        # Moving from bottom line to top line ensures that blank
        # lines inherit the indent of the line *below* it,
        # which is the desired behavior.
        min_indent = 999
        current_indent = 0
        lines = text.split(ls)
        for i in range(len(lines)-1, -1, -1):
            line = lines[i]
            if line.strip():
                current_indent = _indent(line)
                min_indent = min(current_indent, min_indent)
            else:
                lines[i] = ' ' * current_indent
        if min_indent:
            lines = [line[min_indent:] for line in lines]

        # Remove any leading whitespace or comment lines
        # since they confuse the reserved word detector that follows below
        first_line = lines[0].lstrip()
        while first_line == '' or first_line[0] == '#':
            lines.pop(0)
            first_line = lines[0].lstrip()
        
        # Add an EOL character after indentation blocks that start with some 
        # Python reserved words, so that it gets evaluated automatically
        # by the console
        varname = re.compile('[a-zA-Z0-9_]*') # matches valid variable names
        maybe = False
        nextexcept = ()
        for n, line in enumerate(lines):
            if not _indent(line):
                word = varname.match(line).group()
                if maybe and word not in nextexcept:
                    lines[n-1] += ls
                    maybe = False
                if word:
                    if word in ('def', 'for', 'while', 'with', 'class'):
                        maybe = True
                        nextexcept = ()
                    elif word == 'if':
                        maybe = True
                        nextexcept = ('elif', 'else')
                    elif word == 'try':
                        maybe = True
                        nextexcept = ('except', 'finally')
        if maybe:
            if lines[-1].strip() == '':
                lines[-1] += ls
            else:
                lines.append(ls)
        
        return ls.join(lines)

    def get_cell_as_executable_code(self):
        """Return cell contents as executable code"""
        start_pos, end_pos = self.__save_selection()
        self.select_current_cell()
        text = self.get_selection_as_executable_code()
        self.__restore_selection(start_pos, end_pos)
        return text

    def is_cell_separator(self, cursor=None, block=None):
        """Return True if cursor (or text block) is on a block separator"""
        assert cursor is not None or block is not None
        if cursor is not None:
            cursor0 = QTextCursor(cursor)
            cursor0.select(QTextCursor.BlockUnderCursor)
            text = to_text_string(cursor0.selectedText())
        else:
            text = to_text_string(block.text())
        return text.lstrip().startswith(self.CELL_SEPARATORS)

    def select_current_cell(self):
        """Select cell under cursor
        cell = group of lines separated by CELL_SEPARATORS"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.StartOfBlock)
        cur_pos = prev_pos = cursor.position()
        # Moving to the next line that is not a separator, if we are
        # exactly at one of them
        while self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        # If not, move backwards to find the previous separator
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.PreviousBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                if self.is_cell_separator(cursor):
                    return
                else:
                    break
        cursor.setPosition(prev_pos)
        cell_at_file_start = cursor.atStart()
        # Once we find it (or reach the beginning of the file)
        # move to the next separator (or the end of the file)
        # so we can grab the cell contents
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock,
                                QTextCursor.KeepAnchor)
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                cursor.movePosition(QTextCursor.EndOfBlock,
                                    QTextCursor.KeepAnchor)
                break
            prev_pos = cur_pos
        # Do nothing if we moved from beginning to end without
        # finding a separator
        if cell_at_file_start and cursor.atEnd():
            return
        self.setTextCursor(cursor)

    def go_to_next_cell(self):
        """Go to the next cell of lines"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.NextBlock)
        cur_pos = prev_pos = cursor.position()
        while not self.is_cell_separator(cursor):
            # Moving to the next code cell
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        self.setTextCursor(cursor)

    def get_line_count(self):
        """Return document total line number"""
        return self.blockCount()

    def __save_selection(self):
        """Save current cursor selection and return position bounds"""
        cursor = self.textCursor()
        return cursor.selectionStart(), cursor.selectionEnd()

    def __restore_selection(self, start_pos, end_pos):
        """Restore cursor selection from position bounds"""
        cursor = self.textCursor()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)

    def __duplicate_line_or_selection(self, after_current_line=True):
        """Duplicate current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if not to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.PreviousBlock)
                end_pos = cursor.position()
            
        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                cursor_temp = QTextCursor(cursor)
                cursor_temp.clearSelection()
                cursor_temp.insertText(self.get_line_separator())
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)            
        text = cursor.selectedText()
        cursor.clearSelection()
        
        if not after_current_line:
            # Moving cursor before current line/selected text
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos += len(text)
            end_pos += len(text)
        
        cursor.insertText(text)
        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)
    
    def duplicate_line(self):
        """
        Duplicate current line or selected text
        Paste the duplicated text *after* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=True)
    
    def copy_line(self):
        """
        Copy current line or selected text
        Paste the duplicated text *before* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=False)
        
    def __move_line_or_selection(self, after_current_line=True):
        """Move current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            # Check if start_pos is at the start of a block
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()

            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.NextBlock)
                end_pos = cursor.position()
        else:
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()
            cursor.movePosition(QTextCursor.NextBlock)
            end_pos = cursor.position()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        
        sel_text = to_text_string(cursor.selectedText())
        cursor.removeSelectedText()
        
        if after_current_line:
            text = to_text_string(cursor.block().text())
            start_pos += len(text)+1
            end_pos += len(text)+1
            cursor.movePosition(QTextCursor.NextBlock)
        else:
            cursor.movePosition(QTextCursor.PreviousBlock)
            text = to_text_string(cursor.block().text())
            start_pos -= len(text)+1
            end_pos -= len(text)+1
        cursor.insertText(sel_text)

        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)
    
    def move_line_up(self):
        """Move up current line or selected text"""
        self.__move_line_or_selection(after_current_line=False)
        
    def move_line_down(self):
        """Move down current line or selected text"""
        self.__move_line_or_selection(after_current_line=True)
        
    def extend_selection_to_complete_lines(self):
        """Extend current selection to complete lines"""
        cursor = self.textCursor()
        start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        if cursor.atBlockStart():
            cursor.movePosition(QTextCursor.PreviousBlock,
                                QTextCursor.KeepAnchor)
            cursor.movePosition(QTextCursor.EndOfBlock,
                                QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)
        
    def delete_line(self):
        """Delete current line"""
        cursor = self.textCursor()
        if self.has_selected_text():
            self.extend_selection_to_complete_lines()
            start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
            cursor.setPosition(start_pos)
        else:
            start_pos = end_pos = cursor.position()
        cursor.beginEditBlock()
        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
        cursor.removeSelectedText()
        cursor.endEditBlock()
        self.ensureCursorVisible()


    #------Code completion / Calltips
    def show_calltip(self, title, text, color='#2D62FF',
                     at_line=None, at_position=None):
        """Show calltip"""
        if text is None or len(text) == 0:
            return
        # Saving cursor position:
        if at_position is None:
            at_position = self.get_position('cursor')
        self.calltip_position = at_position
        # Preparing text:
        weight = 'bold' if self.calltip_font.bold() else 'normal'
        size = self.calltip_font.pointSize()
        family = self.calltip_font.family()
        format1 = '<div style=\'font-size: %spt; color: %s\'>' % (size, color)
        format2 = '<hr><div style=\'font-family: "%s"; font-size: %spt; font-weight: %s\'>' % (family, size, weight)
        if isinstance(text, list):
            text = "\n    ".join(text)
        text = text.replace('\n', '<br>')
        if len(text) > self.calltip_size:
            text = text[:self.calltip_size] + " ..."
        tiptext = format1 + ('<b>%s</b></div>' % title) \
                  + format2 + text + "</div>"
        # Showing tooltip at cursor position:
        cx, cy = self.get_coordinates('cursor')
        if at_line is not None:
            cx = 5
            cursor = QTextCursor(self.document().findBlockByNumber(at_line-1))
            cy = self.cursorRect(cursor).top()
        point = self.mapToGlobal(QPoint(cx, cy))
        point.setX(point.x()+self.get_linenumberarea_width())
        QToolTip.showText(point, tiptext)

    def hide_tooltip_if_necessary(self, key):
        """Hide calltip when necessary"""
        try:
            calltip_char = self.get_character(self.calltip_position)
            before = self.is_cursor_before(self.calltip_position,
                                           char_offset=1)
            other = key in (Qt.Key_ParenRight, Qt.Key_Period, Qt.Key_Tab)
            if calltip_char not in ('?', '(') or before or other:
                QToolTip.hideText()
        except (IndexError, TypeError):
            QToolTip.hideText()

    def show_completion_widget(self, textlist, automatic=True):
        """Show completion widget"""
        self.completion_widget.show_list(textlist, automatic=automatic)
        
    def hide_completion_widget(self):
        """Hide completion widget"""
        self.completion_widget.hide()

    def show_completion_list(self, completions, completion_text="",
                             automatic=True):
        """Display the possible completions"""
        if len(completions) == 0 or completions == [completion_text]:
            return
        self.completion_text = completion_text
        # Sorting completion list (entries starting with underscore are 
        # put at the end of the list):
        underscore = set([comp for comp in completions
                          if comp.startswith('_')])
        completions = sorted(set(completions)-underscore, key=str_lower)+\
                      sorted(underscore, key=str_lower)
        self.show_completion_widget(completions, automatic=automatic)
        
    def select_completion_list(self):
        """Completion list is active, Enter was just pressed"""
        self.completion_widget.item_selected()
        
    def insert_completion(self, text):
        if text:
            cursor = self.textCursor()
            cursor.movePosition(QTextCursor.PreviousCharacter,
                                QTextCursor.KeepAnchor,
                                len(self.completion_text))
            cursor.removeSelectedText()
            self.insert_text(text)

    def is_completion_widget_visible(self):
        """Return True is completion list widget is visible"""
        return self.completion_widget.isVisible()
    
        
    #------Standard keys
    def stdkey_clear(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.NextCharacter, QTextCursor.KeepAnchor)
        self.remove_selected_text()
    
    def stdkey_backspace(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        self.remove_selected_text()

    def __get_move_mode(self, shift):
        return QTextCursor.KeepAnchor if shift else QTextCursor.MoveAnchor

    def stdkey_up(self, shift):
        self.moveCursor(QTextCursor.Up, self.__get_move_mode(shift))

    def stdkey_down(self, shift):
        self.moveCursor(QTextCursor.Down, self.__get_move_mode(shift))

    def stdkey_tab(self):
        self.insert_text(self.indent_chars)

    def stdkey_home(self, shift, ctrl, prompt_pos=None):
        """Smart HOME feature: cursor is first moved at 
        indentation position, then at the start of the line"""
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.Start, move_mode)
        else:
            cursor = self.textCursor()
            if prompt_pos is None:
                start_position = self.get_position('sol')
            else:
                start_position = self.get_position(prompt_pos)
            text = self.get_text(start_position, 'eol')
            indent_pos = start_position+len(text)-len(text.lstrip())
            if cursor.position() != indent_pos:
                cursor.setPosition(indent_pos, move_mode)
            else:
                cursor.setPosition(start_position, move_mode)
            self.setTextCursor(cursor)

    def stdkey_end(self, shift, ctrl):
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.End, move_mode)
        else:
            self.moveCursor(QTextCursor.EndOfBlock, move_mode)

    def stdkey_pageup(self):
        pass

    def stdkey_pagedown(self):
        pass

    def stdkey_escape(self):
        pass

                
    #----Qt Events
    def mousePressEvent(self, event):
        """Reimplement Qt method"""
        if os.name != 'posix' and event.button() == Qt.MidButton:
            self.setFocus()
            event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
                                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
            QPlainTextEdit.mousePressEvent(self, event)
            QPlainTextEdit.mouseReleaseEvent(self, event)
            self.paste()
        else:
            QPlainTextEdit.mousePressEvent(self, event)

    def focusInEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        self.emit(SIGNAL("focus_in()"))
        QPlainTextEdit.focusInEvent(self, event)
        
    def focusOutEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        QPlainTextEdit.focusOutEvent(self, event)
    
    def wheelEvent(self, event):
        """Reimplemented to emit zoom in/out signals when Ctrl is pressed"""
        # This feature is disabled on MacOS, see Issue 1510:
        # http://code.google.com/p/spyderlib/issues/detail?id=1510
        if sys.platform != 'darwin':
            if event.modifiers() & Qt.ControlModifier:
                if event.delta() < 0:
                    self.emit(SIGNAL("zoom_out()"))
                elif event.delta() > 0:
                    self.emit(SIGNAL("zoom_in()"))
                return
        QPlainTextEdit.wheelEvent(self, event)
Ejemplo n.º 22
0
class Framework(QObject):

    X_RAFT_ID = 'X-RAFT-ID'

    def __init__(self, parent = None):
        QObject.__init__(self, parent)
        self._global_cookie_jar = InMemoryCookieJar(self, self)
        self._db = None
        self._contentExtractor = None
        self._networkAccessManager = None
        self._scopeController = None
        self._scopeConfig = None
        self._requestResponseFactory = None
        self.zoom_size = 0
        self.base_font = QFont()
        self.monospace_font = QFont('Courier New')
        self.monospace_font.setFixedPitch(True)
        self.monospace_font.setStyleHint(QFont.TypeWriter)
        pointSize = self.monospace_font.pointSize()
        basePointSize = self.base_font.pointSize()
        if pointSize <= basePointSize:
            pointSize = basePointSize + 2
            self.monospace_font.setPointSize(pointSize)
        self.python_code_font = QFont()
        self.python_code_font.setPointSize(pointSize)
        self.home_dir = QDir.toNativeSeparators(QDir.homePath())
        self.raft_dir = self.create_raft_directory(self.home_dir, '.raft')
        self.user_db_dir = self.create_raft_directory(self.raft_dir, 'db')
        self.user_data_dir = self.create_raft_directory(self.raft_dir, 'data')
        self.user_analyzer_dir = self.create_raft_directory(self.raft_dir, 'analyzers')
        self.user_web_path = self.create_raft_directory(self.raft_dir, 'web')
        self.web_db_path = self.user_web_path
        # TODO: there may be a Qt way to give executable path as well
        self._executable_path = os.path.abspath(os.path.dirname(sys.argv[0]))
        self._data_dir = os.path.join(self._executable_path, 'data')
        self._analyzer_dir = os.path.join(self._executable_path, 'analyzers')
        self._raft_config_cache = {}
        # configuration defaults
        self._default_useragent = 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_7; en-us) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1'
        # callbacks
        self._open_url_in_browser = None
        self._open_content_in_browser = None
        
    def create_raft_directory(self, basepath, dirname):
        dirtarget = os.path.join(basepath, dirname)
        if not os.path.exists(dirtarget):
            os.mkdir(dirtarget)
        return dirtarget

    def useragent(self):
        if self._db is None:
            return self._default_useragent
        if self.get_raft_config_value('browser_custom_user_agent', bool, False):
            return self.get_raft_config_value('browser_user_agent_value', str, self._default_useragent)
        else:
            return self._default_useragent

    def default_useragent(self):
        return self._default_useragent
        
    def getDB(self):
        if self._db is None:
            raise Exception('database is not initialized')
        return self._db

    def setDB(self, db, dbname):
        if self._db is not None:
            raise Exception('database is already initialized')
        self._db = db
        self._db_uuid = self._db.get_db_uuid()
        self.web_db_path = self.create_raft_directory(self.user_web_path, self._db_uuid)
        self._raft_config_cache = {}
        self.emit(SIGNAL('raftConfigPopulated()'))
        self.emit(SIGNAL('databaseAttached()'))

    def closeDB(self):
        self.emit(SIGNAL('databaseDetached()'))
        self._db = None

    def subscribe_database_events(self, attach_callback, detach_callback):
        QObject.connect(self, SIGNAL('databaseAttached()'), attach_callback, Qt.DirectConnection)
        QObject.connect(self, SIGNAL('databaseDetached()'), detach_callback, Qt.DirectConnection)
        # if database is already available, invoke attach callback directly
        if self._db is not None:
            attach_callback()

    def get_temp_db_filename(self):
        # default filename is temp.raftdb
        return os.path.join(self.user_db_dir, 'temp.raftdb')

    def get_web_db_path(self):
        return self.web_db_path

    def get_user_home_dir(self):
        return self.home_dir

    def get_analyzer_paths(self):
        return [self._analyzer_dir, self.user_analyzer_dir]

    def get_data_dir(self):
        return self._data_dir

    def getContentExtractor(self):
        return self._contentExtractor

    def setContentExtractor(self, contentExtractor):
        self._contentExtractor = contentExtractor

    def getRequestResponseFactory(self):
        return self._requestResponseFactory

    def setRequestResponseFactory(self, requestResponseFactory):
        self._requestResponseFactory = requestResponseFactory

    def getScopeController(self):
        return self._scopeController

    def setScopeController(self, scopeController):
        self._scopeController = scopeController

    def getSpiderConfig(self):
        return self._spiderConfig

    def setSpiderConfig(self, spiderConfig):
        self._spiderConfig = spiderConfig

    def getNetworkAccessManager(self):
        return self._networkAccessManager

    def setNetworkAccessManager(self, networkAccessManager):
        self._networkAccessManager = networkAccessManager

    def subscribe_response_data_added(self, callback):
        QObject.connect(self, SIGNAL('responseDataAdded()'), callback, Qt.DirectConnection) 

    def signal_response_data_added(self):
        self.emit(SIGNAL('responseDataAdded()'))
        QThread.yieldCurrentThread()

    def subscribe_zoom_in(self, callback):
        QObject.connect(self, SIGNAL('zoomIn()'), callback, Qt.DirectConnection) 

    def unsubscribe_zoom_in(self, callback):
        QObject.disconnect(self, SIGNAL('zoomIn()'), callback) 

    def get_zoom_size(self):
        return self.zoom_size

    def signal_zoom_in(self):
        self.zoom_size += 1
        self.emit(SIGNAL('zoomIn()'))

    def subscribe_zoom_out(self, callback):
        QObject.connect(self, SIGNAL('zoomOut()'), callback, Qt.DirectConnection) 

    def unsubscribe_zoom_out(self, callback):
        QObject.disconnect(self, SIGNAL('zoomOut()'), callback) 

    def signal_zoom_out(self):
        self.zoom_size -= 1
        self.emit(SIGNAL('zoomOut()'))

    def get_font(self):
        return self.base_font

    def get_monospace_font(self):
        return self.monospace_font

    def get_python_code_font(self):
        return self.python_code_font

    def subscribe_responses_cleared(self, callback):
        QObject.connect(self, SIGNAL('responsesCleared()'), callback, Qt.DirectConnection)

    def signal_responses_cleared(self):
        self.emit(SIGNAL('responsesCleared()'))

    def set_global_cookie_jar(self, cookie_jar):
        self._global_cookie_jar = cookie_jar

    def get_global_cookie_jar(self):
        return self._global_cookie_jar

    def signal_cookie_jar_updated(self):
        self.emit(SIGNAL('cookieJarUpdated()'))

    def import_raw_cookie_list(self, raw_cookie_list):
        cookieJar = self.get_global_cookie_jar()
        # merge cookies
        cookie_list = cookieJar.allCookies()
        for raw_cookie in raw_cookie_list:
            cookies = QNetworkCookie.parseCookies(raw_cookie)
            for cookie in cookies:
                if cookie not in cookie_list:
                    cookie_list.append(cookie)

        cookieJar.setAllCookies(cookie_list)
        self.signal_cookie_jar_updated()

    def subscribe_cookie_jar_updated(self, callback):
        QObject.connect(self, SIGNAL('cookieJarUpdated()'), callback, Qt.DirectConnection)

    def subscribe_raft_config_populated(self, callback):
        QObject.connect(self, SIGNAL('raftConfigPopulated()'), callback, Qt.DirectConnection)
        if self._db is not None:
            callback()

    def unsubscribe_raft_config_populated(self, callback):
        QObject.disconnect(self, SIGNAL('raftConfigPopulated()'), callback)

    def subscribe_raft_config_updated(self, callback):
        QObject.connect(self, SIGNAL('raftConfigUpdated(QString, QVariant)'), callback, Qt.DirectConnection)

    def unsubscribe_raft_config_updated(self, callback):
        QObject.disconnect(self, SIGNAL('raftConfigUpdated(QString, QVariant)'), callback)

    def set_raft_config_value(self, name, value):
        if name in self._raft_config_cache:
            if str(value) == str(self._raft_config_cache[name]):
                return
        cursor = self._db.allocate_thread_cursor()
        self._db.set_config_value(cursor, 'RAFT', name, value)
        cursor.close()
        self._db.release_thread_cursor(cursor)
        self._raft_config_cache[name] = value
        self.emit(SIGNAL('raftConfigUpdated(QString, QVariant)'), name, value)

    def get_raft_config_value(self, name, rtype = str, default_value = None):
        if name in self._raft_config_cache:
            value = self._raft_config_cache[name]
            if value is not None:
                return rtype(value)
            else:
                return default_value
        cursor = self._db.allocate_thread_cursor()
        value = self._db.get_config_value(cursor, 'RAFT', name, rtype, default_value)
        cursor.close()
        self._db.release_thread_cursor(cursor)
        self._raft_config_cache[name] = value
        return value

    def set_config_value(self, component, name, value):
        if 'RAFT' == component.upper():
            self.set_raft_config_value(name, value)
        else:
            cursor = self._db.allocate_thread_cursor()
            self._db.set_config_value(cursor, component, name, value)
            cursor.close()
            self._db.release_thread_cursor(cursor)

    def get_config_value(self, component, name, rtype = str, default_value = None):
        # TODO: implement config cache
        if 'RAFT' == component.upper():
            return self.get_raft_config_value(name, rtype, default_value)
        else:
            cursor = self._db.allocate_thread_cursor()
            value = self._db.get_config_value(cursor, component, name, rtype, default_value)
            cursor.close()
            self._db.release_thread_cursor(cursor)
            return value
    
    def clear_config_value(self, component, name=None):
        cursor = self._db.allocate_thread_cursor()
        value = self._db.clear_config_value(cursor, component, name)
        cursor.close()
        self._db.release_thread_cursor(cursor)
    
    @functools.lru_cache(maxsize=16, typed=False)
    def get_request_response(self, response_id):
        return self._requestResponseFactory.fill(response_id)

    def report_implementation_issue(self, message):
        self.send_log_message('INTERNAL ERROR', '\n'.join(message))
        print(('INTERNAL ERROR:\n%s' % message))

    def report_implementation_error(self, exc):
        message = traceback.format_exception(type(exc), exc, exc.__traceback__)
        self.send_log_message('INTERNAL ERROR', '\n'.join(message))
        print(('INTERNAL ERROR:\n%s' % message))

    def report_exception(self, exc):
        message = traceback.format_exception(type(exc), exc, exc.__traceback__)
        self.send_log_message('EXCEPTION', '\n'.join(message))
        print(('EXCEPTION:\n%s' % message))

    def log_warning(self, msg):
        self.send_log_message('WARNING', msg)
        print(('WARNING', msg))

    def console_log(self, msg):
        self.send_log_message('LOG', msg)
        print(msg)

    def debug_log(self, msg):
        self.send_log_message('DEBUG', msg)
        print(('DEBUG', msg))

    def subscribe_add_differ_response_id(self, callback):
        QObject.connect(self, SIGNAL('differAddResponseId(int)'), callback, Qt.DirectConnection)

    def send_response_id_to_differ(self, Id):
        # TODO: consider accepting cursor
        cursor = self._db.allocate_thread_cursor()
        if self._db.add_differ_item(cursor, int(Id)):
            self.emit(SIGNAL('differAddResponseId(int)'), int(Id))
        cursor.close()
        self._db.release_thread_cursor(cursor)

    def send_response_list_to_differ(self, id_list):
        # TODO: consider accepting cursor
        cursor = self._db.allocate_thread_cursor()
        added_list = self._db.add_differ_list(cursor, id_list)
        # TODO: send as whole list?
        for Id in added_list:
            self.emit(SIGNAL('differAddResponseId(int)'), int(Id))
        cursor.close()
        self._db.release_thread_cursor(cursor)

    def subscribe_populate_requester_response_id(self, callback):
        QObject.connect(self, SIGNAL('requesterPopulateResponseId(int)'), callback, Qt.DirectConnection)
        
    def subscribe_populate_bulk_requester_responses(self, callback):
        QObject.connect(self, SIGNAL('bulkRequesterPopulateResponses(QList<int>)'), callback, Qt.DirectConnection)
        
    def subscribe_populate_webfuzzer_response_id(self, callback):
        QObject.connect(self, SIGNAL('webfuzzerPopulateResponseId(int)'), callback, Qt.DirectConnection)

    def subscribe_populate_domfuzzer_response_id(self, callback):
        QObject.connect(self, SIGNAL('domfuzzerPopulateResponseId(int)'), callback, Qt.DirectConnection)

    def subscribe_populate_domfuzzer_response_list(self, callback):
        QObject.connect(self, SIGNAL('domfuzzerPopulateResponseList(QStringList)'), callback, Qt.DirectConnection)

    def subscribe_populate_spider_response_id(self, callback):
        QObject.connect(self, SIGNAL('spiderPopulateResponseId(int)'), callback, Qt.DirectConnection)

    def subscribe_populate_spider_response_list(self, callback):
        QObject.connect(self, SIGNAL('spiderPopulateResponseList(QStringList)'), callback, Qt.DirectConnection)

    def send_response_id_to_requester(self, Id):
        self.emit(SIGNAL('requesterPopulateResponseId(int)'), int(Id))

    def send_responses_to_bulk_requester(self, ids):
        self.emit(SIGNAL('bulkRequesterPopulateResponses(QList<int>)'), ids)
        
    def send_response_id_to_webfuzzer(self, Id):
        self.emit(SIGNAL('webfuzzerPopulateResponseId(int)'), int(Id))

    def send_response_id_to_domfuzzer(self, Id):
        self.emit(SIGNAL('domfuzzerPopulateResponseId(int)'), int(Id))

    def send_response_list_to_domfuzzer(self, id_list):
        self.emit(SIGNAL('domfuzzerPopulateResponseList(QStringList)'), id_list)

    def send_response_id_to_spider(self, Id):
        self.emit(SIGNAL('spiderPopulateResponseId(int)'), int(Id))

    def send_response_list_to_spider(self, id_list):
        self.emit(SIGNAL('spiderPopulateResponseList(QStringList)'), id_list)

    def subscribe_add_sequence_builder_response_id(self, callback):
        QObject.connect(self, SIGNAL('sequenceBuilderAddResponseId(int)'), callback, Qt.DirectConnection)

    def send_response_id_to_sequence_builder(self, Id):
        # TODO: consider accepting cursor
        cursor = self._db.allocate_thread_cursor()
        if self._db.add_sequence_builder_manual_item(cursor, int(Id)):
            self.emit(SIGNAL('sequenceBuilderAddResponseId(int)'), int(Id))
        cursor.close()
        self._db.release_thread_cursor(cursor)
        
    def subscribe_sequences_changed(self, callback):
        QObject.connect(self, SIGNAL('sequencesChanged()'), callback, Qt.DirectConnection)

    def signal_sequences_changed(self):
        self.emit(SIGNAL('sequencesChanged()'))

    def subscribe_populate_tester_csrf(self, callback):
        QObject.connect(self, SIGNAL('testerPopulateCSRFResponseId(int)'), callback, Qt.DirectConnection)

    def send_to_tester_csrf(self, Id):
        self.emit(SIGNAL('testerPopulateCSRFResponseId(int)'), int(Id))

    def subscribe_populate_tester_click_jacking(self, callback):
        QObject.connect(self, SIGNAL('testerPopulateClickJackingResponseId(int)'), callback, Qt.DirectConnection)

    def send_to_tester_click_jacking(self, Id):
        self.emit(SIGNAL('testerPopulateClickJackingResponseId(int)'), int(Id))

    def subscribe_log_events(self, callback):
        QObject.connect(self, SIGNAL('logMessageReceived(QString, QString)'), callback, Qt.DirectConnection)

    def send_log_message(self, message_type, message):
        self.emit(SIGNAL('logMessageReceived(QString, QString)'), message_type, message)

    def register_browser_openers(self, open_url, open_content):
        if self._open_url_in_browser is None:
            self._open_url_in_browser = open_url
            QObject.connect(self, SIGNAL('openUrlInBrowser(QString)'), self._open_url_in_browser, Qt.DirectConnection)

        if self._open_content_in_browser is None:
            self._open_content_in_browser = open_content
            QObject.connect(self, SIGNAL('openContentInBrowser(QString, QByteArray, QString)'), self._open_content_in_browser, Qt.DirectConnection)

    def open_url_in_browser(self, url):
        self.emit(SIGNAL('openUrlInBrowser(QString)'), url)

    def open_content_in_browser(self, url, body, mimetype=''):
        if isinstance(body, str):
            data = body.encode('utf-8') # TODO: vary based on mimetype ?
        else:
            data = body
        self.emit(SIGNAL('openContentInBrowser(QString, QByteArray, QString)'), url, data, mimetype)
Ejemplo n.º 23
0
class QnoteroItemDelegate(QStyledItemDelegate):

	"""Draws pretty result items"""

	def __init__(self, qnotero):
	
		"""
		Constructor
		
		Arguments:
		qnotero -- a Qnotero instance
		"""
	
		QStyledItemDelegate.__init__(self, qnotero)		
		self.qnotero = qnotero
		self.boldFont = QFont()
		self.boldFont.setBold(True)
		self.regularFont = QFont()
		self.italicFont = QFont()
		self.italicFont.setItalic(True)
		self.tagFont = QFont()
		self.tagFont.setBold(True)
		self.tagFont.setPointSize(self.boldFont.pointSize() - 2)
		
		self.dy = QFontMetrics(self.boldFont) \
			.size(Qt.TextSingleLine, "Dummy").height() \
			*self.qnotero.theme.lineHeight()		
		
		
		self.margin = 0.5*self.dy
		self._margin = 0.1*self.dy		
		self.height = 5*self.dy+self._margin
		self.noPdfPixmap = self.qnotero.theme.pixmap("nopdf")
		self.pdfPixmap = self.qnotero.theme.pixmap("pdf")
		self.aboutPixmap = self.qnotero.theme.pixmap("about")
		self.notePixmap = self.qnotero.theme.pixmap("note")
		self.pixmapSize = self.pdfPixmap.height()+0.5*self.dy		
		self.roundness = self.qnotero.theme.roundness()		
			
	def sizeHint(self, option, index):
	
		"""
		Suggest a size for the widget
		
		Arguments:
		option -- a QStyleOptionView
		index -- a QModelIndex
		
		Returns:
		A QSize
		"""
		
		return QSize(0, self.height)
		
	def paint(self, painter, option, index):
	
		"""
		Draws the widget
		
		Arguments:
		painter -- a QPainter
		option -- a QStyleOptionView
		index -- a QModelIndex		
		"""
		
		# Retrieve the data
		model = index.model()
		record = model.data(index)
		text = record.toString()				
		zoteroItem = zoteroCache[unicode(text)]		
		l = zoteroItem.full_format().split("\n")
		if zoteroItem.fulltext == None:
			pixmap = self.noPdfPixmap
		else:
			pixmap = self.pdfPixmap
			
		# Choose the colors
		self.palette = self.qnotero.ui.listWidgetResults.palette()				
		if option.state & QStyle.State_MouseOver:
			background = self.palette.Highlight
			foreground = self.palette.HighlightedText
			_note = zoteroItem.get_note()			
			if _note != None:
				self.qnotero.showNoteHint()
			else:
				self.qnotero.hideNoteHint()
			
		elif option.state & QStyle.State_Selected:
			background = self.palette.Dark
			foreground = self.palette.WindowText
		else:
			background = self.palette.Base
			foreground = self.palette.WindowText
							
		# Draw the frame		
		_rect = option.rect.adjusted(self._margin, self._margin, \
			-2*self._margin, -self._margin)		
		pen = painter.pen()	
		pen.setColor(self.palette.color(background))
		painter.setPen(pen)
		painter.setBrush(self.palette.brush(background))
		painter.drawRoundedRect(_rect, self.roundness, self.roundness)
		font = painter.font
		pen = painter.pen()
		pen.setColor(self.palette.color(foreground))
		painter.setPen(pen)		
		
		# Draw icon		
		_rect = QRect(option.rect)
		_rect.moveBottom(_rect.bottom() + 0.5*self.dy)
		_rect.moveLeft(_rect.left() + 0.5*self.dy)
		_rect.setHeight(self.pixmapSize)
		_rect.setWidth(self.pixmapSize)
		painter.drawPixmap(_rect, pixmap)
					
		# Draw the text
		_rect = option.rect.adjusted(self.pixmapSize+self.dy, 0.5*self.dy, \
			-self.dy, 0)
		
		f = [self.tagFont, self.italicFont, self.regularFont, \
			self.boldFont]
		l.reverse()		
		while len(l) > 0:
			s = l.pop()
			if len(f) > 0:
				painter.setFont(f.pop())
			painter.drawText(_rect, Qt.AlignLeft, s)
			_rect = _rect.adjusted(0, self.dy, 0, 0)				
Ejemplo n.º 24
0
class CharMap(QWidget):
    """A widget displaying a table of characters."""
    characterSelected = pyqtSignal(str)
    characterClicked = pyqtSignal(str)
    
    def __init__(self, parent=None):
        super(CharMap, self).__init__(parent)
        self._showToolTips = True
        self._showWhatsThis = True
        self._selected = -1
        self._column_count = 32
        self._square = 24
        self._range = (0, 0)
        self._font = QFont()
        
    def setRange(self, first, last):
        self._range = (first, last)
        self._selected = -1
        self.adjustSize()
        self.update()
    
    def range(self):
        return self._range
    
    def square(self):
        """Returns the width of one item (determined by font size)."""
        return self._square
    
    def select(self, charcode):
        """Selects the specified character (int or str)."""
        if not isinstance(charcode, int):
            charcode = ord(charcode)
        if not self._range[0] <= charcode <= self._range[1]:
            charcode = -1
        if self._selected != charcode:
            self._selected = charcode
            self.characterSelected.emit(chr(charcode))
            self.update()
    
    def character(self):
        """Returns the currently selected character, if any."""
        if self._selected != -1:
            return chr(self._selected)
    
    def setDisplayFont(self, font):
        self._font.setFamily(font.family())
        self.update()
    
    def displayFont(self):
        return QFont(self._font)
    
    def setDisplayFontSize(self, size):
        self._font.setPointSize(size)
        self._square = max(24, QFontMetrics(self._font).xHeight() * 3)
        self.adjustSize()
        self.update()
    
    def displayFontSize(self):
        return self._font.pointSize()
    
    def setDisplayFontSizeF(self, size):
        self._font.setPointSizeF(size)
        self._square = max(24, QFontMetrics(self._font).xHeight() * 3)
        self.adjustSize()
        self.update()
    
    def displayFontSizeF(self):
        return self._font.pointSizeF()
    
    def setColumnCount(self, count):
        """Sets how many columns should be used."""
        count = max(1, count)
        self._column_count = count
        self.adjustSize()
        self.update()
    
    def columnCount(self):
        return self._column_count
        
    def sizeHint(self):
        return self.sizeForColumnCount(self._column_count)

    def paintEvent(self, ev):
        rect = ev.rect()
        s = self._square
        rows = range(rect.top() // s, rect.bottom() // s + 1)
        cols = range(rect.left() // s, rect.right() // s + 1)
        
        painter = QPainter(self)
        painter.setPen(QPen(self.palette().color(QPalette.Window)))
        painter.setFont(self._font)
        metrics = QFontMetrics(self._font)
        
        # draw characters on white tiles
        tile = self.palette().color(QPalette.Base)
        selected_tile = self.palette().color(QPalette.Highlight)
        selected_tile.setAlpha(96)
        selected_box = self.palette().color(QPalette.Highlight)
        
        text_pen = QPen(self.palette().text())
        disabled_pen = QPen(self.palette().color(QPalette.Disabled, QPalette.Text))
        selection_pen = QPen(selected_box)
        for row in rows:
            for col in cols:
                char = row * self._column_count + col + self._range[0]
                if char > self._range[1]:
                    break
                printable = self.isprint(char)
                painter.setClipRect(col * s, row * s, s, s)
                if char == self._selected:
                    painter.fillRect(col * s + 1, row * s + 1, s - 2, s - 2, selected_tile)
                    painter.setPen(selection_pen)
                    painter.drawRect(col * s, row * s, s - 1, s - 1)
                elif printable:
                    painter.fillRect(col * s + 1, row * s + 1, s - 2, s - 2, tile)
                painter.setPen(text_pen if printable else disabled_pen)
                t = chr(char)
                x = col * s + s // 2 - metrics.width(t) // 2
                y = row * s + 4 + metrics.ascent()
                painter.drawText(x, y, t)
            else:
                continue
            break
    
    def sizeForColumnCount(self, count):
        """Returns the size the widget would have in a certain column count.
        
        This can be used in e.g. a resizable scroll area.
        
        """
        first, last = self._range
        rows = ((last - first) // count) + 1
        return QSize(count, rows) * self._square

    def columnCountForWidth(self, width):
        """Returns the number of columns that would fit into the given width."""
        return width // self._square

    def mousePressEvent(self, ev):
        charcode = self.charcodeAt(ev.pos())
        if charcode != -1 and self.isprint(charcode):
            self.select(charcode)
            if ev.button() != Qt.RightButton:
                self.characterClicked.emit(chr(charcode))
    
    def charcodeRect(self, charcode):
        """Returns the rectangular box around the given charcode, if any."""
        if self._range[0] <= charcode <= self._range[1]:
            row, col = divmod(charcode - self._range[0], self._column_count)
            s = self._square
            return QRect(col * s, row * s, s, s)
        
    def charcodeAt(self, position):
        row = position.y() // self._square
        col = position.x() // self._square
        if col <= self._column_count:
            charcode = self._range[0] + row * self._column_count + col
            if charcode <= self._range[1]:
                return charcode
        return -1

    def event(self, ev):
        if ev.type() == QEvent.ToolTip:
            if self._showToolTips:
                c = self.charcodeAt(ev.pos())
                if c:
                    text = self.getToolTipText(c)
                    if text:
                        rect = self.charcodeRect(c)
                        QToolTip.showText(ev.globalPos(), text, self, rect)
                        ev.accept()
                        return True
        elif ev.type() == QEvent.QueryWhatsThis:
            if self._showWhatsThis:
                ev.accept()
                return True
        elif ev.type() == QEvent.WhatsThis:
            ev.accept()
            if self._showWhatsThis:
                c = self.charcodeAt(ev.pos())
                text = self.getWhatsThisText(c) if c else None
                if text:
                    QWhatsThis.showText(ev.globalPos(), text, self)
                else:
                    QWhatsThis.leaveWhatsThisMode()
            return True
        return super(CharMap, self).event(ev)
    
    def getToolTipText(self, charcode):
        try:
            return unicodedata.name(chr(charcode))
        except ValueError:
            pass
    
    def getWhatsThisText(self, charcode):
        try:
            name = unicodedata.name(chr(charcode))
        except ValueError:
            return
        return whatsthis_html.format(
            self._font.family(), chr(charcode), name, charcode)
    
    def setShowToolTips(self, enabled):
        self._showToolTips = bool(enabled)
    
    def showToolTips(self):
        return self._showToolTips

    def setShowWhatsThis(self, enabled):
        self._showWhatsThis = bool(enabled)
    
    def showWhatsThis(self):
        return self._showWhatsThis

    def isprint(self, charcode):
        """Returns True if the given charcode is printable."""
        return isprint(charcode)
Ejemplo n.º 25
0
class TextEditBaseWidget(QPlainTextEdit, BaseEditMixin):
    """Text edit base widget"""
    BRACE_MATCHING_SCOPE = ('sof', 'eof')
    CELL_SEPARATORS = ('#%%', '# %%', '# <codecell>')

    def __init__(self, parent=None):
        QPlainTextEdit.__init__(self, parent)
        BaseEditMixin.__init__(self)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.extra_selections_dict = {}

        self.connect(self, SIGNAL('textChanged()'), self.changed)
        self.connect(self, SIGNAL('cursorPositionChanged()'),
                     self.cursor_position_changed)

        self.indent_chars = " " * 4

        # Code completion / calltips
        if parent is not None:
            mainwin = parent
            while not isinstance(mainwin, QMainWindow):
                mainwin = mainwin.parent()
                if mainwin is None:
                    break
            if mainwin is not None:
                parent = mainwin
        self.completion_widget = CompletionWidget(self, parent)
        self.codecompletion_auto = False
        self.codecompletion_case = True
        self.codecompletion_single = False
        self.codecompletion_enter = False
        self.calltips = True
        self.calltip_position = None
        self.calltip_size = 600
        self.calltip_font = QFont()
        self.completion_text = ""

        # Highlight current line color
        self.currentline_color = QColor(Qt.red).lighter(190)

        # Brace matching
        self.bracepos = None
        self.matched_p_color = QColor(Qt.green)
        self.unmatched_p_color = QColor(Qt.red)

    def setup_calltips(self, size=None, font=None):
        self.calltip_size = size
        self.calltip_font = font

    def setup_completion(self, size=None, font=None):
        self.completion_widget.setup_appearance(size, font)

    def set_indent_chars(self, indent_chars):
        self.indent_chars = indent_chars

    def set_palette(self, background, foreground):
        """
        Set text editor palette colors:
        background color and caret (text cursor) color
        """
        palette = QPalette()
        palette.setColor(QPalette.Base, background)
        palette.setColor(QPalette.Text, foreground)
        self.setPalette(palette)

    #------Line number area
    def get_linenumberarea_width(self):
        """Return line number area width"""
        # Implemented in CodeEditor, but needed here for completion widget
        return 0

    #------Extra selections
    def get_extra_selections(self, key):
        return self.extra_selections_dict.get(key, [])

    def set_extra_selections(self, key, extra_selections):
        self.extra_selections_dict[key] = extra_selections

    def update_extra_selections(self):
        extra_selections = []
        for key, extra in list(self.extra_selections_dict.items()):
            if key == 'current_line':
                # Python 3 compatibility (weird): current line has to be
                # highlighted first
                extra_selections = extra + extra_selections
            else:
                extra_selections += extra
        self.setExtraSelections(extra_selections)

    def clear_extra_selections(self, key):
        self.extra_selections_dict[key] = []
        self.update_extra_selections()

    def changed(self):
        """Emit changed signal"""
        self.emit(SIGNAL('modificationChanged(bool)'),
                  self.document().isModified())

    #------Highlight current line
    def highlight_current_line(self):
        """Highlight current line"""
        selection = QTextEdit.ExtraSelection()
        #        selection.format.setProperty(QTextFormat.FullWidthSelection,
        #                                     QVariant(True))
        selection.format.setBackground(self.currentline_color)
        selection.cursor = self.textCursor()
        selection.cursor.clearSelection()
        self.set_extra_selections('current_line', [selection])
        self.update_extra_selections()

    def unhighlight_current_line(self):
        """Unhighlight current line"""
        self.clear_extra_selections('current_line')

    #------Brace matching
    def find_brace_match(self, position, brace, forward):
        start_pos, end_pos = self.BRACE_MATCHING_SCOPE
        if forward:
            bracemap = {'(': ')', '[': ']', '{': '}'}
            text = self.get_text(position, end_pos)
            i_start_open = 1
            i_start_close = 1
        else:
            bracemap = {')': '(', ']': '[', '}': '{'}
            text = self.get_text(start_pos, position)
            i_start_open = len(text) - 1
            i_start_close = len(text) - 1

        while True:
            if forward:
                i_close = text.find(bracemap[brace], i_start_close)
            else:
                i_close = text.rfind(bracemap[brace], 0, i_start_close + 1)
            if i_close > -1:
                if forward:
                    i_start_close = i_close + 1
                    i_open = text.find(brace, i_start_open, i_close)
                else:
                    i_start_close = i_close - 1
                    i_open = text.rfind(brace, i_close, i_start_open + 1)
                if i_open > -1:
                    if forward:
                        i_start_open = i_open + 1
                    else:
                        i_start_open = i_open - 1
                else:
                    # found matching brace
                    if forward:
                        return position + i_close
                    else:
                        return position - (len(text) - i_close)
            else:
                # no matching brace
                return

    def __highlight(self, positions, color=None, cancel=False):
        if cancel:
            self.clear_extra_selections('brace_matching')
            return
        extra_selections = []
        for position in positions:
            if position > self.get_position('eof'):
                return
            selection = QTextEdit.ExtraSelection()
            selection.format.setBackground(color)
            selection.cursor = self.textCursor()
            selection.cursor.clearSelection()
            selection.cursor.setPosition(position)
            selection.cursor.movePosition(QTextCursor.NextCharacter,
                                          QTextCursor.KeepAnchor)
            extra_selections.append(selection)
        self.set_extra_selections('brace_matching', extra_selections)
        self.update_extra_selections()

    def cursor_position_changed(self):
        """Brace matching"""
        if self.bracepos is not None:
            self.__highlight(self.bracepos, cancel=True)
            self.bracepos = None
        cursor = self.textCursor()
        if cursor.position() == 0:
            return
        cursor.movePosition(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        text = to_text_string(cursor.selectedText())
        pos1 = cursor.position()
        if text in (')', ']', '}'):
            pos2 = self.find_brace_match(pos1, text, forward=False)
        elif text in ('(', '[', '{'):
            pos2 = self.find_brace_match(pos1, text, forward=True)
        else:
            return
        if pos2 is not None:
            self.bracepos = (pos1, pos2)
            self.__highlight(self.bracepos, color=self.matched_p_color)
        else:
            self.bracepos = (pos1, )
            self.__highlight(self.bracepos, color=self.unmatched_p_color)

    #-----Widget setup and options
    def set_codecompletion_auto(self, state):
        """Set code completion state"""
        self.codecompletion_auto = state

    def set_codecompletion_case(self, state):
        """Case sensitive completion"""
        self.codecompletion_case = state
        self.completion_widget.case_sensitive = state

    def set_codecompletion_single(self, state):
        """Show single completion"""
        self.codecompletion_single = state
        self.completion_widget.show_single = state

    def set_codecompletion_enter(self, state):
        """Enable Enter key to select completion"""
        self.codecompletion_enter = state
        self.completion_widget.enter_select = state

    def set_calltips(self, state):
        """Set calltips state"""
        self.calltips = state

    def set_wrap_mode(self, mode=None):
        """
        Set wrap mode
        Valid *mode* values: None, 'word', 'character'
        """
        if mode == 'word':
            wrap_mode = QTextOption.WrapAtWordBoundaryOrAnywhere
        elif mode == 'character':
            wrap_mode = QTextOption.WrapAnywhere
        else:
            wrap_mode = QTextOption.NoWrap
        self.setWordWrapMode(wrap_mode)

    #------Reimplementing Qt methods
    def copy(self):
        """
        Reimplement Qt method
        Copy text to clipboard with correct EOL chars
        """
        QApplication.clipboard().setText(self.get_selected_text())

    #------Text: get, set, ...
    def get_selection_as_executable_code(self):
        """Return selected text as a processed text,
        to be executable in a Python/IPython interpreter"""
        ls = self.get_line_separator()

        _indent = lambda line: len(line) - len(line.lstrip())

        line_from, line_to = self.get_selection_bounds()
        text = self.get_selected_text()
        if not text:
            return

        lines = text.split(ls)
        if len(lines) > 1:
            # Multiline selection -> eventually fixing indentation
            original_indent = _indent(self.get_text_line(line_from))
            text = (" " * (original_indent - _indent(lines[0]))) + text

        # If there is a common indent to all lines, find it.
        # Moving from bottom line to top line ensures that blank
        # lines inherit the indent of the line *below* it,
        # which is the desired behavior.
        min_indent = 999
        current_indent = 0
        lines = text.split(ls)
        for i in range(len(lines) - 1, -1, -1):
            line = lines[i]
            if line.strip():
                current_indent = _indent(line)
                min_indent = min(current_indent, min_indent)
            else:
                lines[i] = ' ' * current_indent
        if min_indent:
            lines = [line[min_indent:] for line in lines]

        # Remove any leading whitespace or comment lines
        # since they confuse the reserved word detector that follows below
        first_line = lines[0].lstrip()
        while first_line == '' or first_line[0] == '#':
            lines.pop(0)
            first_line = lines[0].lstrip()

        # Add an EOL character after indentation blocks that start with some
        # Python reserved words, so that it gets evaluated automatically
        # by the console
        varname = re.compile('[a-zA-Z0-9_]*')  # matches valid variable names
        maybe = False
        nextexcept = ()
        for n, line in enumerate(lines):
            if not _indent(line):
                word = varname.match(line).group()
                if maybe and word not in nextexcept:
                    lines[n - 1] += ls
                    maybe = False
                if word:
                    if word in ('def', 'for', 'while', 'with', 'class'):
                        maybe = True
                        nextexcept = ()
                    elif word == 'if':
                        maybe = True
                        nextexcept = ('elif', 'else')
                    elif word == 'try':
                        maybe = True
                        nextexcept = ('except', 'finally')
        if maybe:
            if lines[-1].strip() == '':
                lines[-1] += ls
            else:
                lines.append(ls)

        return ls.join(lines)

    def get_cell_as_executable_code(self):
        """Return cell contents as executable code"""
        start_pos, end_pos = self.__save_selection()
        self.select_current_cell()
        text = self.get_selection_as_executable_code()
        self.__restore_selection(start_pos, end_pos)
        return text

    def is_cell_separator(self, cursor=None, block=None):
        """Return True if cursor (or text block) is on a block separator"""
        assert cursor is not None or block is not None
        if cursor is not None:
            cursor0 = QTextCursor(cursor)
            cursor0.select(QTextCursor.BlockUnderCursor)
            text = to_text_string(cursor0.selectedText())
        else:
            text = to_text_string(block.text())
        return text.lstrip().startswith(self.CELL_SEPARATORS)

    def select_current_cell(self):
        """Select cell under cursor
        cell = group of lines separated by CELL_SEPARATORS"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.StartOfBlock)
        cur_pos = prev_pos = cursor.position()
        # Moving to the next line that is not a separator, if we are
        # exactly at one of them
        while self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        # If not, move backwards to find the previous separator
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.PreviousBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                if self.is_cell_separator(cursor):
                    return
                else:
                    break
        cursor.setPosition(prev_pos)
        cell_at_file_start = cursor.atStart()
        # Once we find it (or reach the beginning of the file)
        # move to the next separator (or the end of the file)
        # so we can grab the cell contents
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                cursor.movePosition(QTextCursor.EndOfBlock,
                                    QTextCursor.KeepAnchor)
                break
            prev_pos = cur_pos
        # Do nothing if we moved from beginning to end without
        # finding a separator
        if cell_at_file_start and cursor.atEnd():
            return
        self.setTextCursor(cursor)

    def go_to_next_cell(self):
        """Go to the next cell of lines"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.NextBlock)
        cur_pos = prev_pos = cursor.position()
        while not self.is_cell_separator(cursor):
            # Moving to the next code cell
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        self.setTextCursor(cursor)

    def get_line_count(self):
        """Return document total line number"""
        return self.blockCount()

    def __save_selection(self):
        """Save current cursor selection and return position bounds"""
        cursor = self.textCursor()
        return cursor.selectionStart(), cursor.selectionEnd()

    def __restore_selection(self, start_pos, end_pos):
        """Restore cursor selection from position bounds"""
        cursor = self.textCursor()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)

    def __duplicate_line_or_selection(self, after_current_line=True):
        """Duplicate current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if not to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.PreviousBlock)
                end_pos = cursor.position()

        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                cursor_temp = QTextCursor(cursor)
                cursor_temp.clearSelection()
                cursor_temp.insertText(self.get_line_separator())
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
        text = cursor.selectedText()
        cursor.clearSelection()

        if not after_current_line:
            # Moving cursor before current line/selected text
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos += len(text)
            end_pos += len(text)

        cursor.insertText(text)
        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)

    def duplicate_line(self):
        """
        Duplicate current line or selected text
        Paste the duplicated text *after* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=True)

    def copy_line(self):
        """
        Copy current line or selected text
        Paste the duplicated text *before* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=False)

    def __move_line_or_selection(self, after_current_line=True):
        """Move current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            # Check if start_pos is at the start of a block
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()

            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.NextBlock)
                end_pos = cursor.position()
        else:
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()
            cursor.movePosition(QTextCursor.NextBlock)
            end_pos = cursor.position()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)

        sel_text = to_text_string(cursor.selectedText())
        cursor.removeSelectedText()

        if after_current_line:
            text = to_text_string(cursor.block().text())
            start_pos += len(text) + 1
            end_pos += len(text) + 1
            cursor.movePosition(QTextCursor.NextBlock)
        else:
            cursor.movePosition(QTextCursor.PreviousBlock)
            text = to_text_string(cursor.block().text())
            start_pos -= len(text) + 1
            end_pos -= len(text) + 1
        cursor.insertText(sel_text)

        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)

    def move_line_up(self):
        """Move up current line or selected text"""
        self.__move_line_or_selection(after_current_line=False)

    def move_line_down(self):
        """Move down current line or selected text"""
        self.__move_line_or_selection(after_current_line=True)

    def extend_selection_to_complete_lines(self):
        """Extend current selection to complete lines"""
        cursor = self.textCursor()
        start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        if cursor.atBlockStart():
            cursor.movePosition(QTextCursor.PreviousBlock,
                                QTextCursor.KeepAnchor)
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)

    def delete_line(self):
        """Delete current line"""
        cursor = self.textCursor()
        if self.has_selected_text():
            self.extend_selection_to_complete_lines()
            start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
            cursor.setPosition(start_pos)
        else:
            start_pos = end_pos = cursor.position()
        cursor.beginEditBlock()
        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
        cursor.removeSelectedText()
        cursor.endEditBlock()
        self.ensureCursorVisible()

    #------Code completion / Calltips
    def show_calltip(self,
                     title,
                     text,
                     color='#2D62FF',
                     at_line=None,
                     at_position=None):
        """Show calltip"""
        if text is None or len(text) == 0:
            return
        # Saving cursor position:
        if at_position is None:
            at_position = self.get_position('cursor')
        self.calltip_position = at_position
        # Preparing text:
        weight = 'bold' if self.calltip_font.bold() else 'normal'
        size = self.calltip_font.pointSize()
        family = self.calltip_font.family()
        format1 = '<div style=\'font-size: %spt; color: %s\'>' % (size, color)
        format2 = '<hr><div style=\'font-family: "%s"; font-size: %spt; font-weight: %s\'>' % (
            family, size, weight)
        if isinstance(text, list):
            text = "\n    ".join(text)
        text = text.replace('\n', '<br>')
        if len(text) > self.calltip_size:
            text = text[:self.calltip_size] + " ..."
        tiptext = format1 + ('<b>%s</b></div>' % title) \
                  + format2 + text + "</div>"
        # Showing tooltip at cursor position:
        cx, cy = self.get_coordinates('cursor')
        if at_line is not None:
            cx = 5
            cursor = QTextCursor(self.document().findBlockByNumber(at_line -
                                                                   1))
            cy = self.cursorRect(cursor).top()
        point = self.mapToGlobal(QPoint(cx, cy))
        point.setX(point.x() + self.get_linenumberarea_width())
        QToolTip.showText(point, tiptext)

    def hide_tooltip_if_necessary(self, key):
        """Hide calltip when necessary"""
        try:
            calltip_char = self.get_character(self.calltip_position)
            before = self.is_cursor_before(self.calltip_position,
                                           char_offset=1)
            other = key in (Qt.Key_ParenRight, Qt.Key_Period, Qt.Key_Tab)
            if calltip_char not in ('?', '(') or before or other:
                QToolTip.hideText()
        except (IndexError, TypeError):
            QToolTip.hideText()

    def show_completion_widget(self, textlist, automatic=True):
        """Show completion widget"""
        self.completion_widget.show_list(textlist, automatic=automatic)

    def hide_completion_widget(self):
        """Hide completion widget"""
        self.completion_widget.hide()

    def show_completion_list(self,
                             completions,
                             completion_text="",
                             automatic=True):
        """Display the possible completions"""
        if len(completions) == 0 or completions == [completion_text]:
            return
        self.completion_text = completion_text
        # Sorting completion list (entries starting with underscore are
        # put at the end of the list):
        underscore = set(
            [comp for comp in completions if comp.startswith('_')])
        completions = sorted(set(completions)-underscore, key=str_lower)+\
                      sorted(underscore, key=str_lower)
        self.show_completion_widget(completions, automatic=automatic)

    def select_completion_list(self):
        """Completion list is active, Enter was just pressed"""
        self.completion_widget.item_selected()

    def insert_completion(self, text):
        if text:
            cursor = self.textCursor()
            cursor.movePosition(QTextCursor.PreviousCharacter,
                                QTextCursor.KeepAnchor,
                                len(self.completion_text))
            cursor.removeSelectedText()
            self.insert_text(text)

    def is_completion_widget_visible(self):
        """Return True is completion list widget is visible"""
        return self.completion_widget.isVisible()

    #------Standard keys
    def stdkey_clear(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.NextCharacter, QTextCursor.KeepAnchor)
        self.remove_selected_text()

    def stdkey_backspace(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        self.remove_selected_text()

    def __get_move_mode(self, shift):
        return QTextCursor.KeepAnchor if shift else QTextCursor.MoveAnchor

    def stdkey_up(self, shift):
        self.moveCursor(QTextCursor.Up, self.__get_move_mode(shift))

    def stdkey_down(self, shift):
        self.moveCursor(QTextCursor.Down, self.__get_move_mode(shift))

    def stdkey_tab(self):
        self.insert_text(self.indent_chars)

    def stdkey_home(self, shift, ctrl, prompt_pos=None):
        """Smart HOME feature: cursor is first moved at 
        indentation position, then at the start of the line"""
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.Start, move_mode)
        else:
            cursor = self.textCursor()
            if prompt_pos is None:
                start_position = self.get_position('sol')
            else:
                start_position = self.get_position(prompt_pos)
            text = self.get_text(start_position, 'eol')
            indent_pos = start_position + len(text) - len(text.lstrip())
            if cursor.position() != indent_pos:
                cursor.setPosition(indent_pos, move_mode)
            else:
                cursor.setPosition(start_position, move_mode)
            self.setTextCursor(cursor)

    def stdkey_end(self, shift, ctrl):
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.End, move_mode)
        else:
            self.moveCursor(QTextCursor.EndOfBlock, move_mode)

    def stdkey_pageup(self):
        pass

    def stdkey_pagedown(self):
        pass

    def stdkey_escape(self):
        pass

    #----Qt Events
    def mousePressEvent(self, event):
        """Reimplement Qt method"""
        if os.name != 'posix' and event.button() == Qt.MidButton:
            self.setFocus()
            event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
                                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
            QPlainTextEdit.mousePressEvent(self, event)
            QPlainTextEdit.mouseReleaseEvent(self, event)
            self.paste()
        else:
            QPlainTextEdit.mousePressEvent(self, event)

    def focusInEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        self.emit(SIGNAL("focus_in()"))
        QPlainTextEdit.focusInEvent(self, event)

    def focusOutEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        QPlainTextEdit.focusOutEvent(self, event)

    def wheelEvent(self, event):
        """Reimplemented to emit zoom in/out signals when Ctrl is pressed"""
        # This feature is disabled on MacOS, see Issue 1510:
        # http://code.google.com/p/spyderlib/issues/detail?id=1510
        if sys.platform != 'darwin':
            if event.modifiers() & Qt.ControlModifier:
                if event.delta() < 0:
                    self.emit(SIGNAL("zoom_out()"))
                elif event.delta() > 0:
                    self.emit(SIGNAL("zoom_in()"))
                return
        QPlainTextEdit.wheelEvent(self, event)