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 if wxPlatform == '__WXMSW__':
  36     face1 = 'Arial'
  37     face2 = 'Times New Roman'
  38     face3 = 'Courier New'
  39     pb = 6
  40 else:
  41     face1 = 'Helvetica'
  42     face2 = 'Times'
  43     face3 = 'Courier'
  44     pb = 10
  45
  46
  47 #----------------------------------------------------------------------
  48 # This shows how to catch the Modified event from the wxStyledTextCtrl
  49
  50 class MySTC(wxStyledTextCtrl):
  51     def __init__(self, parent, ID, log):
  52         wxStyledTextCtrl.__init__(self, parent, ID)
  53         self.log = log
  54
  55         EVT_STC_MODIFIED(self, ID, self.OnModified)
  56
  57
  58     def OnModified(self, evt):
  59         self.log.write("""OnModified
  60         Mod type:     %s
  61         At position:  %d
  62         Lines added:  %d
  63         Text Length:  %d
  64         Text:         %s\n""" % ( self.transModType(evt.GetModificationType()),
  65                                   evt.GetPosition(),
  66                                   evt.GetLinesAdded(),
  67                                   evt.GetLength(),
  68                                   evt.GetText() ))
  69
  70     def transModType(self, modType):
  71         st = ""
  72         table = [(wxSTC_MOD_INSERTTEXT, "InsertText"),
  73                  (wxSTC_MOD_DELETETEXT, "DeleteText"),
  74                  (wxSTC_MOD_CHANGESTYLE, "ChangeStyle"),
  75                  (wxSTC_MOD_CHANGEFOLD, "ChangeFold"),
  76                  (wxSTC_PERFORMED_USER, "UserFlag"),
  77                  (wxSTC_PERFORMED_UNDO, "Undo"),
  78                  (wxSTC_PERFORMED_REDO, "Redo"),
  79                  (wxSTC_LASTSTEPINUNDOREDO, "Last-Undo/Redo"),
  80                  (wxSTC_MOD_CHANGEMARKER, "ChangeMarker"),
  81                  (wxSTC_MOD_BEFOREINSERT, "B4-Insert"),
  82                  (wxSTC_MOD_BEFOREDELETE, "B4-Delete")
  83                  ]
  84
  85         for flag,text in table:
  86             if flag & modType:
  87                 st = st + text + " "
  88
  89         if not st:
  90             st = 'UNKNOWN'
  91
  92         return st
  93
  94
  95
  96 #----------------------------------------------------------------------
  97
  98 _USE_PANEL = 1
  99
 100 def runTest(frame, nb, log):
 101     if not _USE_PANEL:
 102         ed = p = MySTC(nb, -1, log)
 103
 104     else:
 105         p = wxPanel(nb, -1)
 106         ed = MySTC(p, -1, log)
 107         s = wxBoxSizer(wxHORIZONTAL)
 108         s.Add(ed, 1, wxEXPAND)
 109         p.SetSizer(s)
 110         p.SetAutoLayout(true)
 111
 112     ed.SetText(demoText)
 113     ed.EmptyUndoBuffer()
 114
 115     # make some styles
 116     ed.StyleSetSpec(wxSTC_STYLE_DEFAULT, "size:%d,face:%s" % (pb+2, face3))
 117     ed.StyleSetSpec(1, "size:%d,bold,face:%s,fore:#0000FF" % (pb+3, face1))
 118     ed.StyleSetSpec(2, "face:%s,italic,fore:#FF0000,size:%d" % (face2, pb+2))
 119     ed.StyleSetSpec(3, "face:%s,bold,size:%d" % (face2, pb+3))
 120     ed.StyleSetSpec(4, "face:%s,size:%d" % (face1, pb))
 121
 122
 123     # now set some text to those styles...  Normally this would be
 124     # done in an event handler that happens when text needs displayed.
 125     ed.StartStyling(98, 0xff)
 126     ed.SetStyling(6, 1)  # set style for 6 characters using style 1
 127
 128     ed.StartStyling(190, 0xff)
 129     ed.SetStyling(20, 2)
 130
 131     ed.StartStyling(310, 0xff)
 132     ed.SetStyling(4, 3)
 133     ed.SetStyling(2, 0)
 134     ed.SetStyling(10, 4)
 135
 136
 137     # line numbers in the margin
 138     ed.SetMarginType(0, wxSTC_MARGIN_NUMBER)
 139     ed.SetMarginWidth(0, 22)
 140     ed.StyleSetSpec(wxSTC_STYLE_LINENUMBER, "size:%d,face:%s" % (pb, face1))
 141
 142     # setup some markers
 143     ed.SetMarginType(1, wxSTC_MARGIN_SYMBOL)
 144     ed.MarkerDefine(0, wxSTC_MARK_ROUNDRECT, "#CCFF00", "RED")
 145     ed.MarkerDefine(1, wxSTC_MARK_CIRCLE, "FOREST GREEN", "SIENNA")
 146     ed.MarkerDefine(2, wxSTC_MARK_SHORTARROW, "blue", "blue")
 147     ed.MarkerDefine(3, wxSTC_MARK_ARROW, "#00FF00", "#00FF00")
 148
 149     # put some markers on some lines
 150     ed.MarkerAdd(17, 0)
 151     ed.MarkerAdd(18, 1)
 152     ed.MarkerAdd(19, 2)
 153     ed.MarkerAdd(20, 3)
 154     ed.MarkerAdd(20, 0)
 155
 156
 157     # and finally, an indicator or two
 158     ed.IndicatorSetStyle(0, wxSTC_INDIC_SQUIGGLE)
 159     ed.IndicatorSetForeground(0, wxRED)
 160     ed.IndicatorSetStyle(1, wxSTC_INDIC_DIAGONAL)
 161     ed.IndicatorSetForeground(1, wxBLUE)
 162     ed.IndicatorSetStyle(2, wxSTC_INDIC_STRIKE)
 163     ed.IndicatorSetForeground(2, wxRED)
 164
 165     ed.StartStyling(836, wxSTC_INDICS_MASK)
 166     ed.SetStyling(10, wxSTC_INDIC0_MASK)
 167     ed.SetStyling(10, wxSTC_INDIC1_MASK)
 168     ed.SetStyling(10, wxSTC_INDIC2_MASK | wxSTC_INDIC1_MASK)
 169
 170     # some test stuff...
 171     if 1:
 172         print "GetTextLength(): ", ed.GetTextLength(), len(ed.GetText())
 173         print "GetText(): ", repr(ed.GetText())
 174         print
 175         print "GetStyledText(98, 104): ", repr(ed.GetStyledText(98, 104)), len(ed.GetStyledText(98, 104))
 176         print
 177         print "GetCurLine(): ", repr(ed.GetCurLine())
 178         print
 179         print "GetLine(1): ", repr(ed.GetLine(1))
 180         print
 181         ed.SetSelection(25, 35)
 182         print "GetSelectedText(): ", repr(ed.GetSelectedText())
 183         print "GetTextRange(25, 35): ", repr(ed.GetTextRange(25, 35))
 184
 185         ed.GotoPos(0)
 186
 187     return p
 188
 189
 190
 191 #----------------------------------------------------------------------
 192
 193
 194 overview = """\
 195 <html><body>
 196 Once again, no docs yet.  <b>Sorry.</b>  But <a href="data/stc.h">this</a>
 197 and <a href="http://www.scintilla.org/ScintillaDoc.html">this</a> should
 198 be helpful.
 199 </body><html>
 200 """
 201
 202
 203
 204 if __name__ == '__main__':
 205     import sys
 206     app = wxPySimpleApp()
 207     frame = wxFrame(None, -1, "Tester...", size=(640, 480))
 208     win = runTest(frame, frame, sys.stdout)
 209     frame.Show(true)
 210     app.MainLoop()
 211
 212