#	Programmer:	Daniel Pozmanter
#	E-mail:		drpython@bluebottle.com
#	Note:		You must reply to the verification e-mail to get through.
#
#	Copyright 2003-2005 Daniel Pozmanter
#
#	Distributed under the terms of the GPL (GNU Public License)
#
#	DrPython is free software; you can redistribute it and/or modify
#	it under the terms of the GNU General Public License as published by
#	the Free Software Foundation; either version 2 of the License, or
#	(at your option) any later version.
#
#	This program is distributed in the hope that it will be useful,
#	but WITHOUT ANY WARRANTY; without even the implied warranty of
#	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#	GNU General Public License for more details.
#
#	You should have received a copy of the GNU General Public License
#	along with this program; if not, write to the Free Software
#	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
	
#Go To Source Browser

import re
import wx
from drSingleChoiceDialog import drSingleChoiceDialog

respacecount = re.compile(r'\S')

def GetMatches(text, resourcebrowser):
	matches = []
	positions = []
		
	matcher = resourcebrowser.finditer(text)
	
	try:
		match = matcher.next()
	except:
		match = None
	while (match is not None):
		matches.append(match.group().replace('\t', '    '))
		positions.append(match.start())
		try:
			match = matcher.next()
		except:
			match = None
		
	return matches, positions

class drSourceBrowserGoToDialog(drSingleChoiceDialog):
	
	def __init__(self, parent, Document, matches, positions):
		drSingleChoiceDialog.__init__(self, parent, 'Source Browser Go To', matches, False, SetSizer=False)
		
		self.Document = Document
		
		self.positions = positions
		
		self.txtLine = wx.TextCtrl(self, -1, '', (0, 0), (350, -1), style=wx.TE_READONLY)
		self.txtDefinedIn = wx.TextCtrl(self, -1, '', (0, 0), (350, -1), style=wx.TE_READONLY)
		
		self.lineSizer = wx.BoxSizer(wx.HORIZONTAL)
		self.lineSizer.Add(wx.StaticText(self, -1, '  '), 0, wx.SHAPED)
		self.lineSizer.Add(self.txtLine, 1, wx.EXPAND)
		self.lineSizer.Add(wx.StaticText(self, -1, '  '), 0, wx.SHAPED)
		
		self.defSizer = wx.BoxSizer(wx.HORIZONTAL)
		self.defSizer.Add(wx.StaticText(self, -1, '  '), 0, wx.SHAPED)
		self.defSizer.Add(self.txtDefinedIn, 1, wx.EXPAND)
		self.defSizer.Add(wx.StaticText(self, -1, '  '), 0, wx.SHAPED)	
		
		self.theSizer.Insert(2, wx.StaticText(self, -1, '  '), 0, wx.SHAPED)
		self.theSizer.Insert(3, self.lineSizer, 0, wx.EXPAND)
		self.theSizer.Insert(4, self.defSizer, 0, wx.EXPAND)
		
		self.SetSizerAndFit(self.theSizer)
		
		self.Bind(wx.EVT_LIST_ITEM_SELECTED, self.OnSelected, id=self.ID_CHOICES)
		
		self.OnSelected(None)
		
	def OnSelected(self, event):
		sel = self.listChoices.GetFirstSelected()
		if sel > -1:
			pos = self.listChoices.GetItemData(sel)			
			
			spaces = respacecount.search(self.choices[pos]).start() - 1
						
			definedin = self.Document.GetFilenameTitle()
			
			if spaces > 0:
				x = pos
				while x > -1:
					if ((respacecount.search(self.choices[x]).start() - 1) < spaces):
						definedin = self.choices[x].rstrip()
						break
					x -= 1			
			
			linenumber = str(self.Document.LineFromPosition(self.positions[pos]) + 1)			
			
			self.txtLine.SetValue('Line Number:      ' + linenumber)
			self.txtDefinedIn.SetValue('Defined In:    ' + definedin)
		
def SourceBrowserGoTo(frame, Document):
	compchar = Document.GetIndentationCharacter()
	resourcebrowser = re.compile(r'(^'+compchar+'*?class\s.*[(:])|(^'+compchar+'*?def\s.*[(:])|(^'+compchar+'*?import\s.*$)|(^'+compchar+'*?from\s.*$)', re.MULTILINE)
	text = Document.GetText()
	
	matches, positions = GetMatches(text, resourcebrowser)
		
	d = drSourceBrowserGoToDialog(frame, Document, matches, positions)
	answer = d.ShowModal()
	d.Destroy()

	if (answer == wx.ID_OK):
		i = d.GetSelection()
		line = Document.LineFromPosition(positions[i])
		Document.EnsureVisible(line)
		Document.ScrollToLine(line)
		Document.GotoLine(line)
		Document.GotoPos(positions[i])
	
	Document.SetFocus()	
	Document.SetSTCFocus(True)