#------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license.  The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Enthought, Inc.
# Description: <Enthought pyface package component>
#------------------------------------------------------------------------------
import wx
from wx import stc

import keyword

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

demoText = """\
## This version of the editor has been set up to edit Python source
## code.  Here is a copy of wxPython/demo/Main.py to play with.


"""

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


if wx.Platform == '__WXMSW__':
    faces = { 'times': 'Times New Roman',
              'mono' : 'Courier New',
              'helv' : 'Arial',
              'other': 'Comic Sans MS',
              'size' : 10,
              'size2': 8,
            }
else:
    faces = { 'times': 'Times',
              'mono' : 'Courier',
              'helv' : 'Helvetica',
              'other': 'new century schoolbook',
              'size' : 12,
              'size2': 10,
            }


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

class PythonSTC(stc.StyledTextCtrl):
    def __init__(self, parent, ID):
        stc.StyledTextCtrl.__init__(self, parent, ID,
                                  style = wx.NO_FULL_REPAINT_ON_RESIZE)

        self.CmdKeyAssign(ord('B'), stc.STC_SCMOD_CTRL, stc.STC_CMD_ZOOMIN)
        self.CmdKeyAssign(ord('N'), stc.STC_SCMOD_CTRL, stc.STC_CMD_ZOOMOUT)

        self.SetLexer(stc.STC_LEX_PYTHON)
        self.SetKeyWords(0, " ".join(keyword.kwlist))

        self.SetProperty("fold", "1")
        self.SetProperty("tab.timmy.whinge.level", "1")
        self.SetMargins(0,0)

        self.SetViewWhiteSpace(False)
        #self.SetBufferedDraw(False)

        self.SetEdgeMode(stc.STC_EDGE_BACKGROUND)
        self.SetEdgeColumn(78)

        # Setup a margin to hold fold markers
        ###  WHAT IS THIS VALUE?  WHAT ARE THE OTHER FLAGS?  DOES IT MATTER?
        self.SetFoldFlags(16)
        #mic
        #self.SetMarginType(2, stc.STC_MARGIN_SYMBOL)
        #self.SetMarginMask(2, stc.STC_MASK_FOLDERS)
        #self.SetMarginSensitive(2, True)
        #self.SetMarginWidth(2, 12)
        # line numbers in the margin
        self.SetMarginType(1, stc.STC_MARGIN_NUMBER)
        self.SetMarginWidth(1, 25)

        if 0: # simple folder marks, like the old version
            self.MarkerDefine(stc.STC_MARKNUM_FOLDER,
                              stc.STC_MARK_ARROW, "navy", "navy")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDEROPEN,
                              stc.STC_MARK_ARROWDOWN, "navy", "navy")
            # Set these to an invisible mark
            self.MarkerDefine(stc.STC_MARKNUM_FOLDEROPENMID,
                              stc.STC_MARK_BACKGROUND, "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDERMIDTAIL,
                              stc.STC_MARK_BACKGROUND, "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDERSUB,
                              stc.STC_MARK_BACKGROUND, "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDERTAIL,
                              stc.STC_MARK_BACKGROUND, "white", "black")

        elif 0: # more involved "outlining" folder marks
            self.MarkerDefine(stc.STC_MARKNUM_FOLDEREND,
                              stc.STC_MARK_BOXPLUSCONNECTED, "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDEROPENMID,
                              stc.STC_MARK_BOXMINUSCONNECTED,
                              "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDERMIDTAIL,
                              stc.STC_MARK_TCORNER,  "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDERTAIL,
                              stc.STC_MARK_LCORNER,  "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDERSUB,
                              stc.STC_MARK_VLINE,    "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDER,
                              stc.STC_MARK_BOXPLUS,  "white", "black")
            self.MarkerDefine(stc.STC_MARKNUM_FOLDEROPEN,
                              stc.STC_MARK_BOXMINUS, "white", "black")


        stc.EVT_STC_UPDATEUI(self,    ID, self.OnUpdateUI)
        stc.EVT_STC_MARGINCLICK(self, ID, self.OnMarginClick)


        # Make some styles,  The lexer defines what each style is used for, we
        # just have to define what each style looks like.  This set is adapted
        # from Scintilla sample property files.

        self.StyleClearAll()

        # Global default styles for all languages
        self.StyleSetSpec(stc.STC_STYLE_DEFAULT,
                          "face:%(helv)s,size:%(size)d" % faces)
        self.StyleSetSpec(stc.STC_STYLE_LINENUMBER,
                          "back:#C0C0C0,face:%(helv)s,size:%(size2)d" % faces)
        self.StyleSetSpec(stc.STC_STYLE_CONTROLCHAR,
                          "face:%(other)s" % faces)
        self.StyleSetSpec(stc.STC_STYLE_BRACELIGHT,
                          "fore:#FFFFFF,back:#0000FF,bold")
        self.StyleSetSpec(stc.STC_STYLE_BRACEBAD,
                          "fore:#000000,back:#FF0000,bold")

        # Python styles
        # White space
        self.StyleSetSpec(stc.STC_P_DEFAULT,
                          "fore:#808080,face:%(helv)s,size:%(size)d" % faces)
        # Comment
        self.StyleSetSpec(stc.STC_P_COMMENTLINE,
                          "fore:#007F00,face:%(other)s,size:%(size)d" % faces)
        # Number
        self.StyleSetSpec(stc.STC_P_NUMBER,
                          "fore:#007F7F,size:%(size)d" % faces)
        # String
        self.StyleSetSpec(stc.STC_P_STRING,
                  "fore:#7F007F,italic,face:%(times)s,size:%(size)d" % faces)
        # Single quoted string
        self.StyleSetSpec(stc.STC_P_CHARACTER,
                  "fore:#7F007F,italic,face:%(times)s,size:%(size)d" % faces)
        # Keyword
        self.StyleSetSpec(stc.STC_P_WORD,
                          "fore:#00007F,bold,size:%(size)d" % faces)
        # Triple quotes
        self.StyleSetSpec(stc.STC_P_TRIPLE,
                          "fore:#7F0000,size:%(size)d" % faces)
        # Triple double quotes
        self.StyleSetSpec(stc.STC_P_TRIPLEDOUBLE,
                          "fore:#7F0000,size:%(size)d" % faces)
        # Class name definition
        self.StyleSetSpec(stc.STC_P_CLASSNAME,
                          "fore:#0000FF,bold,underline,size:%(size)d" % faces)
        # Function or method name definition
        self.StyleSetSpec(stc.STC_P_DEFNAME,
                          "fore:#007F7F,bold,size:%(size)d" % faces)
        # Operators
        self.StyleSetSpec(stc.STC_P_OPERATOR,
                          "bold,size:%(size)d" % faces)
        # Identifiers
        self.StyleSetSpec(stc.STC_P_IDENTIFIER,
                          "fore:#808080,face:%(helv)s,size:%(size)d" % faces)
        # Comment-blocks
        self.StyleSetSpec(stc.STC_P_COMMENTBLOCK,
                          "fore:#7F7F7F,size:%(size)d" % faces)
        # End of line where string is not closed
        self.StyleSetSpec(stc.STC_P_STRINGEOL,
          "fore:#000000,face:%(mono)s,back:#E0C0E0,eol,size:%(size)d" % faces)


        self.SetCaretForeground("BLUE")

        wx.EVT_KEY_DOWN(self, self.OnKeyPressed)


    def OnKeyPressed(self, event):
        if self.CallTipActive():
            self.CallTipCancel()

        # KeyCode used to be a method.  Now it is an integer.
        # Handle either case.
        if type(event.KeyCode) is int:
            # wx2.8+
            key = event.KeyCode
        else:
            # wx2.6
            key = event.KeyCode()

        if key == 32 and event.ControlDown():
            pos = self.GetCurrentPos()
            # Tips
            if event.ShiftDown():
                self.CallTipSetBackground("yellow")
                self.CallTipShow(pos, 'param1, param2')
            # Code completion
            else:
                # fixme: What is this mess!!!

                #lst = []
                #for x in range(50000):
                #    lst.append('%05d' % x)
                #st = " ".join(lst)
                #print len(st)
                #self.AutoCompShow(0, st)

                # fixme: What is this mess!!!
                kw = keyword.kwlist[:]
                kw.append("zzzzzz")
                kw.append("aaaaa")
                kw.append("__init__")
                kw.append("zzaaaaa")
                kw.append("zzbaaaa")
                kw.append("this_is_a_longer_value")
                kw.append("this_is_a_much_much_much_much_longer_value")

                kw.sort()  # Python sorts are case sensitive
                self.AutoCompSetIgnoreCase(False)  # so this needs to match

                self.AutoCompShow(0, " ".join(kw))
        else:
            event.Skip()


    def OnUpdateUI(self, evt):
        # check for matching braces
        braceAtCaret = -1
        braceOpposite = -1
        charBefore = None
        caretPos = self.GetCurrentPos()
        if caretPos > 0:
            charBefore = self.GetCharAt(caretPos - 1)
            styleBefore = self.GetStyleAt(caretPos - 1)

        # check before
        if (charBefore and
            chr(charBefore) in "[]{}()" and
            styleBefore==stc.STC_P_OPERATOR):
            braceAtCaret = caretPos - 1

        # check after
        if braceAtCaret < 0:
            charAfter = self.GetCharAt(caretPos)
            styleAfter = self.GetStyleAt(caretPos)
            if (charAfter and
                chr(charAfter) in "[]{}()" and
                styleAfter == stc.STC_P_OPERATOR):
                braceAtCaret = caretPos

        if braceAtCaret >= 0:
            braceOpposite = self.BraceMatch(braceAtCaret)

        if braceAtCaret != -1  and braceOpposite == -1:
            self.BraceBadLight(braceAtCaret)
        else:
            self.BraceHighlight(braceAtCaret, braceOpposite)
            #pt = self.PointFromPosition(braceOpposite)
            #self.Refresh(True, Rect(pt.x, pt.y, 5,5))
            #print pt
            #self.Refresh(False)


    def OnMarginClick(self, evt):
        # fold and unfold as needed
        if evt.GetMargin() == 2:
            if evt.GetShift() and evt.GetControl():
                self.FoldAll()
            else:
                lineClicked = self.LineFromPosition(evt.GetPosition())
                if self.GetFoldLevel(lineClicked) & stc.STC_FOLDLEVELHEADERFLAG:
                    if evt.GetShift():
                        self.SetFoldExpanded(lineClicked, True)
                        self.Expand(lineClicked, True, True, 1)
                    elif evt.GetControl():
                        if self.GetFoldExpanded(lineClicked):
                            self.SetFoldExpanded(lineClicked, False)
                            self.Expand(lineClicked, False, True, 0)
                        else:
                            self.SetFoldExpanded(lineClicked, True)
                            self.Expand(lineClicked, True, True, 100)
                    else:
                        self.ToggleFold(lineClicked)


    def FoldAll(self):
        lineCount = self.GetLineCount()
        expanding = True

        # find out if we are folding or unfolding
        for lineNum in range(lineCount):
            if self.GetFoldLevel(lineNum) & stc.STC_FOLDLEVELHEADERFLAG:
                expanding = not self.GetFoldExpanded(lineNum)
                break;

        lineNum = 0
        while lineNum < lineCount:
            level = self.GetFoldLevel(lineNum)
            if level & stc.STC_FOLDLEVELHEADERFLAG and \
               (level & stc.STC_FOLDLEVELNUMBERMASK) == stc.STC_FOLDLEVELBASE:

                if expanding:
                    self.SetFoldExpanded(lineNum, True)
                    lineNum = self.Expand(lineNum, True)
                    lineNum = lineNum - 1
                else:
                    lastChild = self.GetLastChild(lineNum, -1)
                    self.SetFoldExpanded(lineNum, False)
                    if lastChild > lineNum:
                        self.HideLines(lineNum+1, lastChild)

            lineNum = lineNum + 1



    def Expand(self, line, doExpand, force=False, visLevels=0, level=-1):
        lastChild = self.GetLastChild(line, level)
        line = line + 1
        while line <= lastChild:
            if force:
                if visLevels > 0:
                    self.ShowLines(line, line)
                else:
                    self.HideLines(line, line)
            else:
                if doExpand:
                    self.ShowLines(line, line)

            if level == -1:
                level = self.GetFoldLevel(line)

            if level & stc.STC_FOLDLEVELHEADERFLAG:
                if force:
                    if visLevels > 1:
                        self.SetFoldExpanded(line, True)
                    else:
                        self.SetFoldExpanded(line, False)
                    line = self.Expand(line, doExpand, force, visLevels-1)

                else:
                    if doExpand and self.GetFoldExpanded(line):
                        line = self.Expand(line, True, force, visLevels-1)
                    else:
                        line = self.Expand(line, False, force, visLevels-1)
            else:
                line = line + 1;

        return line


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

_USE_PANEL = 1

def runTest(frame, nb, log):
    if not _USE_PANEL:
        ed = p = stc.PythonSTC(nb, -1)
    else:
        p = wx.Panel(nb, -1, style = wx.NO_FULL_REPAINT_ON_RESIZE)
        ed = PythonSTC(p, -1)
        s = wx.BoxSizer(wx.HORIZONTAL)
        s.Add(ed, 1, wx.EXPAND)
        p.SetSizer(s)
        p.SetAutoLayout(True)


    ed.SetText(demoText + open('Main.py').read())
    ed.EmptyUndoBuffer()
    ed.Colourise(0, -1)

    # line numbers in the margin
    ed.SetMarginType(1, stc.STC_MARGIN_NUMBER)
    ed.SetMarginWidth(1, 25)

    return p



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


overview = """\
<html><body>
Once again, no docs yet.  <b>Sorry.</b>  But <a href="data/stc.h.html">this</a>
and <a href="http://www.scintilla.org/ScintillaDoc.html">this</a> should
be helpful.
</body><html>
"""


if __name__ == '__main__':
    # fixme: This has been re-factored into not working.  No run module.
    import sys,os
    import run
    run.main(['', os.path.basename(sys.argv[0])])

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

