# -*- coding: cp1250 -*-

import  string as _string
import  time as _time
import  wx
from math import*


class Canvas:
    def __init__(self,parent):
        self.okno=parent
        self.okno.SetBackgroundColour("#FCFCFE")
        self.radic = wx.FlexGridSizer(2,2,0,0)
        self.canvas = wx.ScrolledWindow(self.okno, -1)
       
        self.canvas.EnableScrolling(True, True)
        
        
        self.P_WIDTH = 1000
        self.P_HEIGHT = 1000
        self.canvas.SetScrollbars(20, 20, self.P_WIDTH/20, self.P_HEIGHT/20)

        self.radic.Add(self.canvas, 1, wx.EXPAND)
        self.radic.Add((0,0))
        sizer=wx.BoxSizer(wx.VERTICAL)
        self.radic.Add(sizer, 1, wx.EXPAND)
        self.radic.Add((0,0))
        self.radic.AddGrowableRow(0, 1)
        self.radic.AddGrowableCol(0, 1)
        sizer2=wx.BoxSizer(wx.HORIZONTAL)
        sizer2.Add(wx.StaticText(self.okno,label="  f(y)=   "),0,wx.ALIGN_CENTER)
        self.vstup=wx.TextCtrl(self.okno)
        sizer2.Add(self.vstup,1,0,wx.ALL)
        sizer.Add(sizer2,0,wx.EXPAND)
        sizer3=wx.BoxSizer(wx.HORIZONTAL)
        button1=wx.Button(self.okno,label="Show")
        sizer3.Add(button1,0,wx.ALIGN_RIGHT)
        sizer.Add(sizer3,0,wx.EXPAND)
        ##
        self.canvas.SetCursor(wx.CROSS_CURSOR)
        self.canvas.Bind(wx.EVT_PAINT, self.OnPaint)
        self.okno.SetSizer(self.radic)
        button1.Bind(wx.EVT_BUTTON,lambda e:self.vykresli())
        self.body=[(0,0,0,0)]
        self.pocet=0
        self.dc=False
    def vykresli(self):
        l=[]
        for prvek in self.vstup.GetValue().split(','):
            l.append(int(prvek))
        self.body=l
        self.dc.BeginDrawing()
        self.dc.DrawLineList([l])
        self.dc.EndDrawing()
    def OnPaint(self, evt):
        self.dc=wx.PaintDC(self.canvas)
        self.dc.BeginDrawing()
        self.dc.DrawLineList(self.body)
        self.dc.EndDrawing()
if __name__ == "__main__":
    okno = wx.App(0)
    parent=wx.MDIParentFrame(None,size=wx.Size(500,500))
    child=wx.MDIChildFrame(parent,title="Graf",id=-1)
    Canvas(child)
    child.Maximize()
    parent.Show()
    okno.MainLoop()

TypeError: Expected a sequence of (x1,y1, x1,y2) sequences.
Traceback (most recent call last):
  File "C:\Documents and Settings\Blu\Plocha\MaRoWx\graf_zkouska.py", line 140,
in OnPaint
    self.dc.DrawLineList(self.body)
  File "C:\Python24\lib\site-packages\wx-2.6-msw-unicode\wx\_gdi.py", line 4100,
 in DrawLineList
    return self._DrawLineList(lines, pens, [])
  File "C:\Python24\lib\site-packages\wx-2.6-msw-unicode\wx\_gdi.py", line 4042,
 in _DrawLineList
    return _gdi_.DC__DrawLineList(*args, **kwargs)

import wx
 
class MyFrame(wx.Frame):
 
    PENS = ['blue','red','green','black','purple']
 
    def __init__(self,parent=None,id=wx.ID_ANY,title="Line Drawer"):
        wx.Frame.__init__(self, parent, id, title)
 
 
        self.sizer = wx.FlexGridSizer(2,2,0,0)
 
        # Add canvas
        self.canvas = wx.ScrolledWindow(self, id=wx.ID_ANY)
        self.canvas.EnableScrolling(True, True)
        self.P_WIDTH = 1000
        self.P_HEIGHT = 1000
        self.canvas.SetScrollbars(20, 20, self.P_WIDTH/20, self.P_HEIGHT/20)
        self.sizer.Add(self.canvas, 1, wx.EXPAND)
 
        # Pad spacing to sizer
        self.pad_sizer=wx.BoxSizer(wx.VERTICAL)
        self.sizer.Add(self.pad_sizer, 1, wx.EXPAND)
 
        self.sizer.AddGrowableRow(0, 1)
        self.sizer.AddGrowableCol(0, 1)
 
        # Add text entry
        self.text_sizer=wx.BoxSizer(wx.HORIZONTAL)
        self.text_sizer.Add(wx.StaticText(self,label="  f(y)=   "),0,wx.ALIGN_CENTER)
        self.entry=wx.TextCtrl(self,style=wx.TE_PROCESS_ENTER)
        self.text_sizer.Add(self.entry,1,0,wx.ALL)
        self.sizer.Add(self.text_sizer,0,wx.EXPAND)
 
        # Add button
        self.button_sizer = wx.BoxSizer(wx.HORIZONTAL)
        self.button1=wx.Button(self,label="Show")
        self.button_sizer.Add(self.button1,0,wx.ALIGN_RIGHT)
        self.sizer.Add(self.button_sizer,0,wx.EXPAND)
 
        self.SetSizer(self.sizer)
 
        # housekeeping
        self.lines = []
        self.button1.Bind(wx.EVT_BUTTON,self.OnClick,self.button1)
        #self.entry.Bind(wx.EVT_COMMAND_ENTER,self.OnClick,self.entry) # <--- This doesn't work correctly.  TO-DO: make TextCtrl respond to <Enter>.
        self.canvas.Bind(wx.EVT_PAINT, self.OnPaint)
 
 
 
    def OnPaint(self, event):
        dc = wx.PaintDC(self.canvas)
 
        # This does different colors.
        for line_no in range(len(self.lines)):
 
            dc.SetPen(wx.Pen(self.PENS[line_no % len(self.PENS)],1))
            dc.DrawLine(*self.lines[line_no])
 
        # If you want all one color, use this instead:
        # dc.SetPen('black',1)
        # for line in self.lines:
        #    dc.DrawLine(*line)
 
    def OnClick(self, event=None):
        text = self.entry.GetValue()
        coords = text.split(',')
        try:
            x0,y0,x1,y1 = [int(x) for x in coords]
        except:
            return
        else:
            self.lines.append((x0,y0,x1,y1))
        self.canvas.Refresh()  # <-- The key to getting the drawing to work.
 
if __name__ == "__main__":
 
    app = wx.PySimpleApp()  # <-- much easier than MDIParentFrame...
    app.frame = MyFrame()
    app.frame.Show()
    app.MainLoop()