it is now possible to add custom buttons into wxHtmlHelpFrame's toolbar

[wxWidgets.git] / utils / wxPython / lib / editor / editor.py

#----------------------------------------------------------------------
# Name:        wxPython.lib.editor.wxEditor
# Purpose:     An intelligent text editor with colorization capabilities.
#
# Author:      Dirk Holtwic, Robin Dunn
#
# Created:     15-Dec-1999
# RCS-ID:      $Id$
# Copyright:   (c) 1999 by Dirk Holtwick, 1999
# Licence:     wxWindows license
#----------------------------------------------------------------------


# PLEASE NOTE:  This is experimental code.  It needs an overhall in the
#               drawing and update code, and there is occasionally a
#               mysteriously disappearing line...
#
#               I am working on a StyledTextEditor that will likely
#               render this editor obsolete...  But this one is at
#               least somewhat functional now while the other is still
#               vapor.
#
#               - Robin


from wxPython.wx import *
from string import *
from keyword import *
from regsub import *
from tokenizer import *

#---------------------------------------------------------------------------


class Line:
    def __init__(self, text=""):
        self.text       = text      # the string itself
        self.syntax     = []        # the colors of the line
        self.editable   = true      # edit?
        self.visible    = 0         # will be incremented if not
        self.indent     = 0         # not used yet

#----------------------------------------------------------------------

class wxEditor(wxScrolledWindow):

    def __init__(self, parent, id,
                 pos=wxDefaultPosition, size=wxDefaultSize, style=0):
    ###############################################################
        """
        Alles hat einen Anfang
        """

        wxScrolledWindow.__init__(self, parent, id,
                                  pos, size,
                                  style|wxWANTS_CHARS)

        # the syntax informations, if they don't exist,
        # all syntax stuff will be ignored

        # cursor pos
        self.cx = 0
        self.cy = 0

        # the lines that are visible
        self.lines = []
        self.line = 0
        self.len = 0

        self.ocy = 0

        # border pos
        #self.bx = 0
        #self.by = 0

        # screen
        self.sx = 0
        self.sy = 0
        self.sw = 0
        self.sh = 0
        self.osx= 0
        self.osy= 0

        # font
        dc = wxClientDC(self)

        if wxPlatform == "__WXMSW__":
            self.font = wxFont(10, wxMODERN, wxNORMAL, wxNORMAL)
        else:
            self.font = wxFont(12, wxMODERN, wxNORMAL, wxNORMAL, false)
        dc.SetFont(self.font)

        # font weight, height
        self.fw = dc.GetCharWidth()
        self.fh = dc.GetCharHeight()

        #  back, for colour
        self.bcol = wxNamedColour('white')
        self.fcol = wxNamedColour('black')

        self.cfcol = wxNamedColour('black')
        self.cbcol = wxNamedColour('red')

        # nicht edierbare zeile (hintergrund)
        self.nedcol = wxNamedColour('grey')

        self.SetBackgroundColour(self.bcol)
        #dc.SetForegroundColour(self.fcol)

        # events
        EVT_LEFT_DOWN(self, self.OnMouseClick)
        EVT_RIGHT_DOWN(self, self.OnMouseClick)
        EVT_SCROLLWIN(self, self.OnScroll)

        self.o_cx = self.cx
        self.o_cy = self.cy
        self.o_sx = self.sx
        self.o_sy = self.sy
        self.o_line = self.line
        self.sco_x = 0
        self.sco_y = 0

        self.tabsize = 4

        self.update = true
        self.in_scroll =FALSE
        self.inUpdate = FALSE


        bw,bh = self.GetSizeTuple()
        # double buffering
        self.mdc = wxMemoryDC()
        self.mdc.SelectObject(wxEmptyBitmap(bw,bh))
        # disable physical scrolling because invisible parts are not drawn
        self.EnableScrolling(FALSE, FALSE)

        # the ordinary text as it is
        self.SetText()
        self.SetFocus()


#---------------------------------------------------------------------------

    def CalcLines(self):
    ###############################################################
        self.lines = []
        x =maxlen =0
        for line in self.text:
            if line.visible==0:
                self.lines.append(x)
            else:
                if len(line.text) >maxlen:
                    maxlen =len(line.text)
            x = x + 1
        self.len = len(self.lines)
        self.max_linelength =maxlen


    def SetFontTab(self, fonttab):
    ###############################################################
        """ Fonttabelle zum schnellen Zugriff """
        self.ftab = fonttab


    def SetText(self, text = [""]):
    ###############################################################
        """ Text mittels Liste setzen """
        self.cx = 0
        self.cy = 0
        self.text = []

        for t in text:
            self.text.append(Line(t))

        for l in range(0,len(text)-1):
            #self.UpdateSyntax(l)
            self.OnUpdateHighlight(l)

        self.OnInit()

        self.update = true
        self.UpdateView(None, true)


    # show new text
    def GetText(self):
    ###############################################################
        """ Der gesamte Text als Liste """
        text = []
        for line in self.text:
            text.append(line.text)
        return text


    def IsEmpty(self):
    ###############################################################
        """see if at least one text line is not empty"""
        for line in self.text:
            if line.text: return 0
        return 1


    def IsLine(self, line):
    ###############################################################