def __init__(self, parent=None, language='Python'):
super(Editor, self).__init__(parent)
self.setIndentationsUseTabs(False)
self.setIndentationWidth(4)
# Set the default font
font = QtGui.QFont()
font.setFamily('DejaVu Sans Mono')
font.setFixedPitch(True)
font.setPointSize(10)
self.setFont(font)
self.setMarginsFont(font)
self.zoomIn()
# Margin 0 is used for line numbers
fontmetrics = QtGui.QFontMetrics(font)
self.setMarginsFont(font)
self.setMarginWidth(0, fontmetrics.width("000") + 6)
self.setMarginLineNumbers(0, True)
self.setMarginsBackgroundColor(QtGui.QColor("#cccccc"))
self._marker = None
# Clickable margin 1 for showing markers
#self.setMarginSensitivity(1, True)
#self.connect(self,
# SIGNAL('marginClicked(int, int, Qt::KeyboardModifiers)'),
# self.on_margin_clicked)
self.markerDefine(QsciScintilla.RightArrow, self.ARROW_MARKER_NUM)
self.setMarkerBackgroundColor(QtGui.QColor("#ee1111"),
self.ARROW_MARKER_NUM)
# Brace matching: enable for a brace immediately before or after
# the current position
#
self.setBraceMatching(QsciScintilla.SloppyBraceMatch)
# Current line visible with special background color
self.setCaretLineVisible(True)
self.setCaretLineBackgroundColor(QtGui.QColor("#ffe4e4"))
# Set Python lexer
# Set style for Python comments (style number 1) to a fixed-width
# courier.
#
lexer = getattr(Qsci, 'QsciLexer' + language)()
lexer.setDefaultFont(font)
self.setLexer(lexer)
self.SendScintilla(QsciScintilla.SCI_STYLESETFONT, 1, b'Courier')
# Don't want to see the horizontal scrollbar at all
# Use raw message to Scintilla here (all messages are documented
# here: http://www.scintilla.org/ScintillaDoc.html)
self.SendScintilla(QsciScintilla.SCI_SETHSCROLLBAR, 0)
self.setWrapMode(QsciScintilla.WrapWord)
self.setEolMode(QsciScintilla.EolUnix)
logdpi = screen.logicalDotsPerInch()
print(
# f'screen number: {screen_num}\n',
f'screen name: {name}\n'
f'screen size: {size}\n'
f'screen geometry: {geo}\n\n'
f'devicePixelRationF(): {pxr}\n'
f'physical dpi: {phydpi}\n'
f'logical dpi: {logdpi}\n')
# app-wide font
font = QtGui.QFont("Hack")
# use pixel size to be cross-resolution compatible?
font.setPixelSize(6)
fm = QtGui.QFontMetrics(font)
fontdpi = fm.fontDpi()
font_h = fm.height()
string = '10000'
str_br = fm.boundingRect(string)
str_w = str_br.width()
print(
# f'screen number: {screen_num}\n',
f'font dpi: {fontdpi}\n'
f'font height: {font_h}\n'
f'string bounding rect: {str_br}\n'
f'string width : {str_w}\n')
