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 def runTest(frame, nb, log):
 100     ed = MySTC(nb, -1, log)
 101
 102     ed.SetText(demoText)
 103     ed.EmptyUndoBuffer()
 104
 105     # make some styles
 106     ed.StyleSetSpec(wxSTC_STYLE_DEFAULT, "size:%d,face:%s" % (pb+2, face3))
 107     ed.StyleSetSpec(1, "size:%d,bold,face:%s,fore:#0000FF" % (pb+3, face1))
 108     ed.StyleSetSpec(2, "face:%s,italic,fore:#FF0000,size:%d" % (face2, pb+2))
 109     ed.StyleSetSpec(3, "face:%s,bold,size:%d" % (face2, pb+3))
 110     ed.StyleSetSpec(4, "face:%s,size:%d" % (face1, pb))
 111
 112
 113     # now set some text to those styles...  Normally this would be
 114     # done in an event handler that happens when text needs displayed.
 115     ed.StartStyling(98, 0xff)
 116     ed.SetStyling(6, 1)  # set style for 6 characters using style 1
 117
 118     ed.StartStyling(190, 0xff)
 119     ed.SetStyling(20, 2)
 120
 121     ed.StartStyling(310, 0xff)
 122     ed.SetStyling(4, 3)
 123     ed.SetStyling(2, 0)
 124     ed.SetStyling(10, 4)
 125
 126
 127     # line numbers in the margin
 128     ed.SetMarginType(0, wxSTC_MARGIN_NUMBER)
 129     ed.SetMarginWidth(0, 22)
 130     ed.StyleSetSpec(wxSTC_STYLE_LINENUMBER, "size:%d,face:%s" % (pb, face1))
 131
 132     # setup some markers
 133     ed.SetMarginType(1, wxSTC_MARGIN_SYMBOL)
 134     ed.MarkerDefine(0, wxSTC_MARK_ROUNDRECT, "#CCFF00", "RED")
 135     ed.MarkerDefine(1, wxSTC_MARK_CIRCLE, "FOREST GREEN", "SIENNA")
 136     ed.MarkerDefine(2, wxSTC_MARK_SHORTARROW, "blue", "blue")
 137     ed.MarkerDefine(3, wxSTC_MARK_ARROW, "#00FF00", "#00FF00")
 138
 139     # put some markers on some lines
 140     ed.MarkerAdd(17, 0)
 141     ed.MarkerAdd(18, 1)
 142     ed.MarkerAdd(19, 2)
 143     ed.MarkerAdd(20, 3)
 144     ed.MarkerAdd(20, 0)
 145
 146
 147     # and finally, an indicator or two
 148     ed.IndicatorSetStyle(0, wxSTC_INDIC_SQUIGGLE)
 149     ed.IndicatorSetForeground(0, wxRED)
 150     ed.IndicatorSetStyle(1, wxSTC_INDIC_DIAGONAL)
 151     ed.IndicatorSetForeground(1, wxBLUE)
 152     ed.IndicatorSetStyle(2, wxSTC_INDIC_STRIKE)
 153     ed.IndicatorSetForeground(2, wxRED)
 154
 155     ed.StartStyling(836, wxSTC_INDICS_MASK)
 156     ed.SetStyling(10, wxSTC_INDIC0_MASK)
 157     ed.SetStyling(10, wxSTC_INDIC1_MASK)
 158     ed.SetStyling(10, wxSTC_INDIC2_MASK | wxSTC_INDIC1_MASK)
 159
 160
 161     return ed
 162
 163
 164
 165 #----------------------------------------------------------------------
 166
 167
 168 overview = """\
 169 <html><body>
 170 Once again, no docs yet.  <b>Sorry.</b>  But <a href="data/stc.h">this</a>
 171 and <a href="http://www.scintilla.org/ScintillaDoc.html">this</a> should
 172 be helpful.
 173 </body><html>
 174 """
 175
 176
 177
 178 if __name__ == '__main__':
 179     import sys
 180     app = wxPySimpleApp()
 181     frame = wxFrame(None, -1, "Tester...", size=(640, 480))
 182     win = runTest(frame, frame, sys.stdout)
 183     frame.Show(true)
 184     app.MainLoop()
 185
 186