wxPython/demo/wxStyledTextCtrl_1.py

   1
   2 from wxPython.wx import *
   3 from wxPython.stc import *
   4
   5 #----------------------------------------------------------------------
   6
   7 demoText = """\
   8
   9 This editor is provided by a class named wxStyledTextCtrl.  As
  10 the name suggests, you can define styles that can be applied to
  11 sections of text.  This will typically be used for things like
  12 syntax highlighting code editors, but I'm sure that there are other
  13 applications as well.  A style is a combination of font, point size,
  14 forground and background colours.  The editor can handle
  15 proportional fonts just as easily as monospaced fonts, and various
  16 styles can use different sized fonts.
  17
  18 There are a few canned language lexers and colourizers included,
  19 (see the next demo) or you can handle the colourization yourself.
  20 If you do you can simply register an event handler and the editor
  21 will let you know when the visible portion of the text needs
  22 styling.
  23
  24 wxStyledTextEditor also supports setting markers in the margin...
  25
  26
  27
  28
  29 ...and indicators within the text.  You can use these for whatever
  30 you want in your application.  Cut, Copy, Paste, Drag and Drop of
  31 text works, as well as virtually unlimited Undo and Redo
  32 capabilities, (right click to try it out.)
  33
  34 """
  35
  36 if wxPlatform == '__WXMSW__':
  37     face1 = 'Arial'
  38     face2 = 'Times New Roman'
  39     face3 = 'Courier New'
  40     pb = 6
  41 else:
  42     face1 = 'Helvetica'
  43     face2 = 'Times'
  44     face3 = 'Courier'
  45     pb = 10
  46
  47
  48 #----------------------------------------------------------------------
  49 # This shows how to catch the Modified event from the wxStyledTextCtrl
  50
  51 class MySTC(wxStyledTextCtrl):
  52     def __init__(self, parent, ID, log):
  53         wxStyledTextCtrl.__init__(self, parent, ID)
  54         self.log = log
  55
  56         EVT_STC_MODIFIED(self, ID, self.OnModified)
  57
  58
  59     def OnModified(self, evt):
  60         self.log.write("""OnModified
  61         Mod type:     %s
  62         At position:  %d
  63         Lines added:  %d
  64         Text Length:  %d
  65         Text:         %s\n""" % ( self.transModType(evt.GetModificationType()),
  66                                   evt.GetPosition(),
  67                                   evt.GetLinesAdded(),
  68                                   evt.GetLength(),
  69                                   evt.GetText() ))
  70
  71     def transModType(self, modType):
  72         st = ""
  73         table = [(wxSTC_MOD_INSERTTEXT, "InsertText"),
  74                  (wxSTC_MOD_DELETETEXT, "DeleteText"),
  75                  (wxSTC_MOD_CHANGESTYLE, "ChangeStyle"),
  76                  (wxSTC_MOD_CHANGEFOLD, "ChangeFold"),
  77                  (wxSTC_PERFORMED_USER, "UserFlag"),
  78                  (wxSTC_PERFORMED_UNDO, "Undo"),
  79                  (wxSTC_PERFORMED_REDO, "Redo"),
  80                  (wxSTC_LASTSTEPINUNDOREDO, "Last-Undo/Redo"),
  81                  (wxSTC_MOD_CHANGEMARKER, "ChangeMarker"),
  82                  (wxSTC_MOD_BEFOREINSERT, "B4-Insert"),
  83                  (wxSTC_MOD_BEFOREDELETE, "B4-Delete")
  84                  ]
  85
  86         for flag,text in table:
  87             if flag & modType:
  88                 st = st + text + " "
  89
  90         if not st:
  91             st = 'UNKNOWN'
  92
  93         return st
  94
  95
  96
  97 #----------------------------------------------------------------------
  98
  99 _USE_PANEL = 1
 100
 101 def runTest(frame, nb, log):
 102     if not _USE_PANEL:
 103         ed = p = MySTC(nb, -1, log)
 104
 105     else:
 106         p = wxPanel(nb, -1)
 107         ed = MySTC(p, -1, log)
 108         s = wxBoxSizer(wxHORIZONTAL)
 109         s.Add(ed, 1, wxEXPAND)
 110         p.SetSizer(s)
 111         p.SetAutoLayout(true)
 112
 113     ed.SetText(demoText)
 114     ed.EmptyUndoBuffer()
 115
 116     # make some styles
 117     ed.StyleSetSpec(wxSTC_STYLE_DEFAULT, "size:%d,face:%s" % (pb+2, face3))
 118     ed.StyleSetSpec(1, "size:%d,bold,face:%s,fore:#0000FF" % (pb+3, face1))
 119     ed.StyleSetSpec(2, "face:%s,italic,fore:#FF0000,size:%d" % (face2, pb+2))
 120     ed.StyleSetSpec(3, "face:%s,bold,size:%d" % (face2, pb+3))
 121     ed.StyleSetSpec(4, "face:%s,size:%d" % (face1, pb))
 122
 123
 124     # now set some text to those styles...  Normally this would be
 125     # done in an event handler that happens when text needs displayed.
 126     ed.StartStyling(98, 0xff)
 127     ed.SetStyling(6, 1)  # set style for 6 characters using style 1
 128
 129     ed.StartStyling(190, 0xff)
 130     ed.SetStyling(20, 2)
 131
 132     ed.StartStyling(310, 0xff)
 133     ed.SetStyling(4, 3)
 134     ed.SetStyling(2, 0)
 135     ed.SetStyling(10, 4)
 136
 137
 138     # line numbers in the margin
 139     ed.SetMarginType(0, wxSTC_MARGIN_NUMBER)
 140     ed.SetMarginWidth(0, 22)
 141     ed.StyleSetSpec(wxSTC_STYLE_LINENUMBER, "size:%d,face:%s" % (pb, face1))
 142
 143     # setup some markers
 144     ed.SetMarginType(1, wxSTC_MARGIN_SYMBOL)
 145     ed.MarkerDefine(0, wxSTC_MARK_ROUNDRECT, "#CCFF00", "RED")
 146     ed.MarkerDefine(1, wxSTC_MARK_CIRCLE, "FOREST GREEN", "SIENNA")
 147     ed.MarkerDefine(2, wxSTC_MARK_SHORTARROW, "blue", "blue")
 148     ed.MarkerDefine(3, wxSTC_MARK_ARROW, "#00FF00", "#00FF00")
 149
 150     # put some markers on some lines
 151     ed.MarkerAdd(17, 0)
 152     ed.MarkerAdd(18, 1)
 153     ed.MarkerAdd(19, 2)
 154     ed.MarkerAdd(20, 3)
 155     ed.MarkerAdd(20, 0)
 156
 157
 158     # and finally, an indicator or two
 159     ed.IndicatorSetStyle(0, wxSTC_INDIC_SQUIGGLE)
 160     ed.IndicatorSetForeground(0, wxRED)
 161     ed.IndicatorSetStyle(1, wxSTC_INDIC_DIAGONAL)
 162     ed.IndicatorSetForeground(1, wxBLUE)
 163     ed.IndicatorSetStyle(2, wxSTC_INDIC_STRIKE)
 164     ed.IndicatorSetForeground(2, wxRED)
 165
 166     ed.StartStyling(836, wxSTC_INDICS_MASK)
 167     ed.SetStyling(10, wxSTC_INDIC0_MASK)
 168     ed.SetStyling(10, wxSTC_INDIC1_MASK)
 169     ed.SetStyling(10, wxSTC_INDIC2_MASK | wxSTC_INDIC1_MASK)
 170
 171
 172     return p
 173
 174
 175
 176 #----------------------------------------------------------------------
 177
 178
 179 overview = """\
 180 <html><body>
 181 Once again, no docs yet.  <b>Sorry.</b>  But <a href="data/stc.h">this</a>
 182 and <a href="http://www.scintilla.org/ScintillaDoc.html">this</a> should
 183 be helpful.
 184 </body><html>
 185 """
 186
 187
 188
 189 if __name__ == '__main__':
 190     import sys
 191     app = wxPySimpleApp()
 192     frame = wxFrame(None, -1, "Tester...", size=(640, 480))
 193     win = runTest(frame, frame, sys.stdout)
 194     frame.Show(true)
 195     app.MainLoop()
 196
 197