import wx
import colorsys
from math import cos, sin, radians


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

BASE  = 80.0    # sizes used in shapes drawn below
BASE2 = BASE/2
BASE4 = BASE/4


class TestPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent, -1)

        self.Bind(wx.EVT_PAINT, self.OnPaint)

    def OnPaint(self, evt):
        dc = wx.PaintDC(self)
        try:
            gc = wx.GraphicsContext.Create(dc)
        except NotImplementedError:
            dc.DrawText("This build of wxPython does not support the wx.GraphicsContext "
                        "family of classes.",
                        25, 25)
            return

        font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
        font.SetWeight(wx.BOLD)
        gc.SetFont(font, wx.BLACK) # wird ignoriert

        # make a path 
        path = gc.CreatePath()
        path.MoveToPoint(-BASE2, 0)
        path.AddLineToPoint(0, 0)
        path.AddLineToPoint(BASE4, BASE4)
        path.MoveToPoint(0, 0)
        path.AddLineToPoint(BASE4, -BASE4)

        # Now use that path to demonstrate various capbilites of the grpahics context
        gc.PushState()             # save current translation/scale/other state 
        gc.Translate(10, 10)       # reposition the context origin

        gc.SetPen(wx.Pen("navy", 1))

        for anzahl in range(5):
            self.TeilStrecke(gc, path, 10*BASE/(10+anzahl), 5./(5+anzahl), anzahl*10)
            
        gc.PopState()              # restore saved state
        gc.PushState()             # save it again

    def TeilStrecke(self, gc, path, laenge, faktor, winkel):
        gc.Scale(faktor, faktor)    # verkleinern mit Faktor 80%
        gc.Translate(laenge,laenge)     
        gc.Rotate(radians(winkel))
        gc.DrawPath(path)
        

class MyFrame(wx.Frame):
    """
    Grafik-Fenster.
    """
    def __init__(self, parent, title):
        wx.Frame.__init__(self, parent, -1, title,
                          pos=(50, 50), size=(600, 600))

        # Create the menubar
        menuBar = wx.MenuBar()

        # and a menu 
        menu = wx.Menu()
        menu2 =wx.Menu()

        # add an item to the menu, using \tKeyName automatically
        # creates an accelerator, the third param is some help text
        # that will show up in the statusbar
        menu.Append(wx.ID_EXIT, "B&eenden\tAlt-X", "Schliessen der Anwendung")

        # bind the menu event to an event handler
        self.Bind(wx.EVT_MENU, self.OnTimeToClose, id=wx.ID_EXIT)

        # and put the menu on the menubar
        menuBar.Append(menu, "&Datei")
        menuBar.Append(menu2, "&Hilfe")
        self.SetMenuBar(menuBar)

        self.CreateStatusBar()
        

        # Now create the Panel to put the other controls on.
        panel = TestPanel(self)


    def OnTimeToClose(self, evt):
        """Event handler for the Menu - click."""
        print( "ENDE!" )
        self.Close()

        



class MyApp(wx.App):
    def OnInit(self):
        frame = MyFrame(None, "Grafik")
        self.SetTopWindow(frame)
        frame.Show(True)
        return True
        
app = MyApp(redirect=False)
app.MainLoop()