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I am trying to write a small text editor using the StyledTextControl in wxPython. Most of the styling is working, but spaces remain unstyled and are shown as white areas, the picture shows the effect.
I have tried these functions, but with no effect.
self.SetWhitespaceForeground(0, wx.Colour(255, 255, 0)) self.SetWhitespaceBackground(0, wx.Colour(0, 0, 32))The example is also setting the default foreground and background styles:
self.StyleSetBackground(wx.stc.STC_STYLE_DEFAULT, wx.Colour(0,0,32)) self.StyleSetForeground(wx.stc.STC_STYLE_DEFAULT, wx.Colour(255,255,0))I cannot find any documentation that might suggest what I have done wrong, can anyone assist please.
I have written the following sample test script to recreate the issue:
import wx import wx.stc as stc MSSQL_KEYWORDS = "select insert update delete from exec create table not null" MSSQL_DATATYPES = "int float money varchar datetime smalldatetime" MSSQL_SYSTABLES = "sysdatabases sys" MSSQL_GLOBAL_VARIABLES = "@@spid" MSSQL_FUNCTIONS = "getdate()" MSSQL_STORED_PROCEDURES = "sp_who" class QueryEditor(stc.StyledTextCtrl): def __init__(self, parent, font): super().__init__(parent) face_name = font.GetFaceName() style_spec = f"face:{face_name},size:{font.PointSize}" # Lexer self.StyleSetSpec(stc.STC_STYLE_DEFAULT, style_spec) self.StyleClearAll() self.SetLexer(stc.STC_LEX_MSSQL) self.SetKeyWords(0, MSSQL_KEYWORDS) self.SetKeyWords(1, MSSQL_DATATYPES) self.SetKeyWords(2, MSSQL_SYSTABLES) self.SetKeyWords(3, MSSQL_GLOBAL_VARIABLES) self.SetKeyWords(4, MSSQL_FUNCTIONS) self.SetKeyWords(5, MSSQL_STORED_PROCEDURES) # Styles self.StyleSetSpec(wx.stc.STC_MSSQL_COMMENT,'fore:#808080,italic,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_LINE_COMMENT,'fore:#808080,italic,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_NUMBER, 'fore:#008080,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_OPERATOR, 'fore:magenta,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_IDENTIFIER, 'fore:green,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_VARIABLE, 'fore:green,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_COLUMN_NAME, 'fore:green,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_STATEMENT, 'fore:cyan,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_DATATYPE, 'fore:green,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_SYSTABLE, 'fore:green,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_GLOBAL_VARIABLE, 'fore:white,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_FUNCTION, 'fore:red,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_DATATYPE, 'fore:magenta,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_STORED_PROCEDURE, 'fore:yellow,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_DEFAULT_PREF_DATATYPE, 'fore:green,back:#000020') self.StyleSetSpec(wx.stc.STC_MSSQL_COLUMN_NAME_2, 'fore:green,back:#000020') self.SetWhitespaceForeground(True, wx.Colour(255,255,0)) self.SetWhitespaceBackground(True, wx.Colour(0,0,32)) self.StyleSetBackground(wx.stc.STC_STYLE_DEFAULT, wx.Colour(0,0,32)) self.StyleSetForeground(wx.stc.STC_STYLE_DEFAULT, wx.Colour(255,255,0)) # Margins & Caret self.SetMargins(0, wx.stc.STC_MARGIN_NUMBER | wx.stc.STC_MARGIN_COLOUR) self.SetMarginWidth(0, 40) self.StyleSetSpec(stc.STC_STYLE_LINENUMBER, "face:Menlo,size:10,fore:#000000,back:#C0C0C0") self.SetCaretForeground(wx.Colour(255, 255, 0)) class MainFrame(wx.Frame): def __init__(self): super().__init__(None, title="STC Sample", size=wx.Size(700,500)) font = wx.Font(wx.FontInfo(12).FaceName('Menlo')) ed = QueryEditor(self, font) ed.SetValue(''' SELECT @@SPID -- Global variable SELECT getdate() -- function exec sp_who -- Stored procedure select * from sys.sysdatabases -- System table -- A comment line /* ** A comment block */ create table foo ( key_col int not null, value_col varchar(25) null) ''') self.Show() if __name__ == "__main__": app = wx.App(False) MainFrame() app.MainLoop()