问题
I need help in making my find dialog not interfere with my lexer. I used the find dialog in this question but it uses SetStyles which interferes with my lexer. Along with messing up the syntax highlighting, when I try to do the Find again, it just highlights random things. Any help is appreciated!
Editor:
import wx
import wx.stc as stc
import keyword
class MyFrame(wx.Frame):
def __init__(self, *args, **kwds):
kwds["style"] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)
self.tc = stc.StyledTextCtrl(self, style=wx.TE_MULTILINE | wx.TE_WORDWRAP)
self.bt_find = wx.Button(self, -1, "find")
self.bt_css = wx.Button(self, -1, "CSS")
self.Bind(wx.EVT_BUTTON, self.on_button, self.bt_find)
self.Bind(wx.EVT_FIND, self.on_find)
self.Bind(wx.EVT_BUTTON, self.CSS, self.bt_css)
self.pos = 0
self.size = 0
#
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.tc, 1, wx.EXPAND, 0)
sizer.Add(self.bt_find, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
sizer.Add(self.bt_css, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
self.SetSizer(sizer)
sizer.Fit(self)
self.Layout()
def on_button(self, event):
self.txt = self.tc.GetValue()
self.data = wx.FindReplaceData() # initializes and holds search parameters
dlg = wx.FindReplaceDialog(self.tc, self.data, 'Find')
dlg.Show()
def on_find(self, event):
self.tc.StartStyling(pos=0, mask=0xFF)
self.tc.SetStyling(length=len(self.txt), style=0)
fstring = event.GetFindString()
self.size = len(fstring)
while True:
self.pos = self.txt.find(fstring, self.pos)
if self.pos < 0:
break
self.tc.StyleSetSpec(1, "fore:#FF0000,back:#000000")
self.tc.StartStyling(pos=self.pos, mask=0xFF)
self.tc.SetStyling(length=self.size, style=1)
self.pos += 1
self.pos = 0
def CSS(self, e):
self.tc.SetLexer(stc.STC_LEX_CSS)
self.tc.SetKeyWords(0, " ".join(keyword.kwlist))
self.tc.StyleSetSpec(wx.stc.STC_CSS_ATTRIBUTE, 'fore:#0000FF')
self.tc.StyleSetSpec(wx.stc.STC_CSS_CLASS, 'fore:#0000FF')
self.tc.StyleSetSpec(wx.stc.STC_CSS_COMMENT, 'fore:#008000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_DEFAULT, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_DIRECTIVE, 'fore:#0000FF')
self.tc.StyleSetSpec(wx.stc.STC_CSS_DOUBLESTRING, 'fore:#800080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_ID, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_IDENTIFIER, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_IDENTIFIER2, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_IMPORTANT, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_OPERATOR, 'fore:#800000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_PSEUDOCLASS, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_SINGLESTRING, 'fore:#800080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_TAG, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_UNKNOWN_IDENTIFIER, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_UNKNOWN_PSEUDOCLASS, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_VALUE, 'fore:#668B8B')
if __name__ == "__main__":
app = wx.App()
frame_1 = MyFrame(None, wx.ID_ANY, "")
frame_1.Show()
app.MainLoop()
回答1:
At first, you should use style number that is not used by lexer, see style codes in _stc.py.
You can also use Colourise(0, -1) method to clear your custom styling and reapply default lexer's colorizing to whole document (see StyledTextCtrl documentation).
import wx
import wx.stc as stc
import keyword
SCE_FIND = 24 # style for highlighting of matching text
class MyFrame(wx.Frame):
def __init__(self, *args, **kwds):
kwds["style"] = wx.DEFAULT_FRAME_STYLE
wx.Frame.__init__(self, *args, **kwds)
self.tc = stc.StyledTextCtrl(self, style=wx.TE_MULTILINE | wx.TE_WORDWRAP)
self.bt_find = wx.Button(self, -1, "find")
self.bt_css = wx.Button(self, -1, "CSS")
self.Bind(wx.EVT_BUTTON, self.on_button, self.bt_find)
self.Bind(wx.EVT_FIND, self.on_find)
self.Bind(wx.EVT_FIND_CLOSE, self.on_find_close)
self.Bind(wx.EVT_BUTTON, self.CSS, self.bt_css)
self.pos = 0
self.size = 0
#
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.tc, 1, wx.EXPAND, 0)
sizer.Add(self.bt_find, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
sizer.Add(self.bt_css, 0, wx.ALIGN_CENTER_HORIZONTAL, 0)
self.SetSizer(sizer)
sizer.Fit(self)
self.Layout()
self.tc.StyleSetSpec(SCE_FIND, "fore:#FF0000,back:#000000")
def on_button(self, event):
self.txt = self.tc.GetValue()
self.data = wx.FindReplaceData() # initializes and holds search parameters
dlg = wx.FindReplaceDialog(self.tc, self.data, 'Find', wx.FR_NOUPDOWN | wx.FR_NOMATCHCASE)
dlg.Show()
def on_find(self, event):
fstring = event.GetFindString()
self.size = len(fstring)
while True:
self.pos = self.txt.find(fstring, self.pos)
if self.pos < 0:
break
self.tc.StartStyling(pos=self.pos, mask=0xFF)
self.tc.SetStyling(length=self.size, style=SCE_FIND)
self.pos += 1
self.pos = 0
def on_find_close(self, event):
self.tc.Colourise(0, -1)
def CSS(self, e):
self.tc.SetLexer(stc.STC_LEX_CSS)
self.tc.SetKeyWords(0, " ".join(keyword.kwlist))
self.tc.StyleSetSpec(wx.stc.STC_CSS_ATTRIBUTE, 'fore:#0000FF')
self.tc.StyleSetSpec(wx.stc.STC_CSS_CLASS, 'fore:#0000FF')
self.tc.StyleSetSpec(wx.stc.STC_CSS_COMMENT, 'fore:#008000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_DEFAULT, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_DIRECTIVE, 'fore:#0000FF')
self.tc.StyleSetSpec(wx.stc.STC_CSS_DOUBLESTRING, 'fore:#800080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_ID, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_IDENTIFIER, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_IDENTIFIER2, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_IMPORTANT, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_OPERATOR, 'fore:#800000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_PSEUDOCLASS, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_SINGLESTRING, 'fore:#800080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_TAG, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_UNKNOWN_IDENTIFIER, 'fore:#000000')
self.tc.StyleSetSpec(wx.stc.STC_CSS_UNKNOWN_PSEUDOCLASS, 'fore:#008080')
self.tc.StyleSetSpec(wx.stc.STC_CSS_VALUE, 'fore:#668B8B')
if __name__ == "__main__":
app = wx.App()
frame_1 = MyFrame(None, wx.ID_ANY, "")
frame_1.Show()
app.MainLoop()
来源：https://stackoverflow.com/questions/52911621/how-do-i-make-my-find-dialog-not-interfere-with-lexer-in-styledtextctrl