Ok, let’s get straight to the point. I got 2 questions
1. Why self.StyleSetSpec(stc.STC_STYLE_DEFAULT, “fore:#000000” + FontSet) not working?
2. Why the custom lexer is not applied?
This is the source code
import wx, re, keyword
from wx import stc
class BaseLexer(object):
"""Defines simple interface for custom lexer objects"""
def __init__(self):
super(BaseLexer, self).__init__()
def StyleText(self, event):
raise NotImplementedError
class STC_LEX_VOTONUSA(BaseLexer):
# Define some style IDs
STC_VOTONUSA_DEFAULT = wx.NewId()
STC_VOTONUSA_VALUE = wx.NewId()
STC_VOTONUSA_OBJECT = wx.NewId()
STC_VOTONUSA_TYPE = wx.NewId()
STC_VOTONUSA_OPERATION = wx.NewId()
STC_VOTONUSA_COMMENT =wx.NewId()
STC_VOTONUSA_QUALIFIER = wx.NewId()
def __init__(self):
super(STC_LEX_VOTONUSA, self).__init__()
# Attributes
self.Comment = re.compile("""
//
""", re.X)
self.Types = re.compile("""
\\b
(void|integer|shortint|(short)?word|float|boolean|char|record|program|module)
\\b
""", re.I|re.X)
self.Operation = re.compile("""
(read|write)(line)?|if|main|case|while|use|return|exit|in_case|repeat_until
(\+|-|\*|/|%|\*\*|:|!|<|>)?=?|
(\{|\}|\(|\)|\[|\])
""", re.I|re.X)
self.Value = re.compile("""
[(`\d*)+\'\w*\']*|\'.*\'|[\+-]*\d*\.?\d*
""", re.I|re.X)
self.Qualifier = re.compile("""
interface|implementation
""", re.I|re.X)
self.Object = re.compile("""
s
""", re.I|re.X)
def GetLastWord(self, Line, CaretPos):
"""
Get the last word from a line
"""
LastWord = re.search(
"""
\s*
(
".*"| # String data type
\w*| # Any letter/number
(\+|-|\*|/|%|\*\*|:|!|<|>)?=?| # Assignment, Comparison & Mathematical
(\{|\}|\(|\)|\[|\]) # Brackets
)
\s*\Z
""",
Line[:CaretPos], re.VERBOSE)
return LastWord
def StyleText(self, event):
"""Handle the EVT_STC_STYLENEEDED event"""
Obj = event.GetEventObject()
# Get Last Correctly Styled
LastStyledPos = Obj.GetEndStyled()
# Get Styling Range
Line = Obj.LineFromPosition(LastStyledPos)
StartPos = Obj.PositionFromLine(Line)
EndPos = event.GetPosition()
# Walk the Range and Style Them
while StartPos < EndPos:
Obj.StartStyling(StartPos, 0x1f)
LastWord = self.GetLastWord(Line, CaretPos)
if self.Comment.search(LastWord):
# Set Comment Keyword style
Style = self.STC_VOTONUSA_COMMENT
elif self.Type.search(LastWord):
# Set Type Keyword style
Style = self.STC_VOTONUSA_TYPE
elif self.Operation.search(LastWord):
# Set Operation Keyword style
Style = self.STC_VOTONUSA_OPERATION
elif self.Value.search(LastWord):
# Set Value Keyword style
Style = self.STC_VOTONUSA_VALUE
elif self.Qualifier.search(LastWord):
# Set Qualifier Keyqord style
Style = self.STC_VOTONUSA_QUALIFIER
elif self.Object.search(LastWord):
# Set Object Keyword style
Style = self.STC_VOTONUSA_OBJECT
# Set the styling byte information for length of LastWord from
# current styling position (StartPos) with the given style.
Obj.SetStyling(len(LastWord), Style)
StartPos += len(LastWord)
class CustomSTC(stc.StyledTextCtrl):
def __init__(self, parent):
super(CustomSTC, self).__init__(parent)
# Attributes
self.custlex = None
Font = wx.Font(12, wx.FONTFAMILY_MODERN, wx.FONTSTYLE_NORMAL, wx.FONTWEIGHT_NORMAL)
Face = Font.GetFaceName()
Size = Font.GetPointSize()
# Setup
kwlist = u" ".join(keyword.kwlist)
self.SetKeyWords(0, kwlist)
self.StyleClearAll()
self.SetLexer(wx.NewId(), STC_LEX_VOTONUSA)
self.EnableLineNumbers()
FontSet = "face:%s, size:%d" % (Face, Size)
self.StyleSetSpec(stc.STC_STYLE_LINENUMBER, FontSet)
# Set Default to Black
self.StyleSetSpec(stc.STC_STYLE_DEFAULT, "fore:#000000" + FontSet)
# Set Comment to Pink
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_COMMENT, "fore:#ff007f" + FontSet)
# Set Value to Green
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_VALUE, "fore:#00ff00" + FontSet)
# Set Object to Brown
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_OBJECT, "fore:#a52a2a" + FontSet)
# Set Type to Red
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_TYPE, "fore:#ff0000" + FontSet)
# Set Operation to Blue
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_OPERATION, "fore:#0000ff" + FontSet)
# Set Qualifier to Orange
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_QUALIFIER, "fore:#cc3232" + FontSet)
# Event Handlers
self.Bind(stc.EVT_STC_STYLENEEDED, self.OnStyle)
def EnableLineNumbers(self, enable=True):
"""Enable/Disable line number margin"""
if enable:
self.SetMarginType(1, stc.STC_MARGIN_NUMBER)
self.SetMarginMask(1, 0)
self.SetMarginWidth(1, 25)
else:
self.SetMarginWidth(1, 0)
def OnStyle(self, event):
# Delegate to custom lexer object if one exists
if self.custlex:
self.custlex.StyleText(event)
else:
event.Skip()
def SetLexer(self, lexerid, lexer=None):
"""
Overrides StyledTextCtrl.SetLexer
Adds optional param to pass in custom container
lexer object.
"""
self.custlex = lexer
super(CustomSTC, self).SetLexer(lexerid)
class NUSAIPT(wx.Frame):
def __init__(self, *args, **kwargs):
wx.Frame.__init__(self, None, wx.ID_ANY, 'VOTO NUSA IPT')
self.TextArea = CustomSTC(self)
self.Show()
app = wx.App()
frame = NUSAIPT()
app.MainLoop()
If I change
self.SetLexer(wx.NewId(), STC_LEX_VOTONUSA)
into
self.SetLexer(stc.STC_LEX_CPP)
and
self.StyleSetSpec(STC_LEX_VOTONUSA.STC_VOTONUSA_COMMENT, "fore:#ff007f" + FontSet)
into
self.StyleSetSpec(stc.STC_C_COMMENT, "fore:#ff007f" + FontSet)
the comment highlighting worked. so the mistake should be in self.SetLexer(wx.NewId(), STC_LEX_VOTONUSA) or STC_LEX_VOTONUSA.STC_VOTONUSA_COMMENT
Thanks in advance. Hope to see some answer soon.
Just stuck with same problem yesterday, here are my results. Hope it’s not too late 🙂
First, i set lexer to this one, and internal lexer as you do:
Bind to event and OnStyle method are same.
And also i changed id of styles from
wx.newId()to just numbers starting from 1.Without it i didn’t see any styling at all. Also
stc.STC_STYLE_DEFAULTstarted to work too.Full listing: