#!/usr/bin/python

# This file is part of the Printrun suite.
#
# Printrun 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 3 of the License, or
# (at your option) any later version.
#
# Printrun 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 Printrun.  If not, see <http://www.gnu.org/licenses/>.

import wx, random

from bufferedcanvas import *

class Graph(BufferedCanvas):
    '''A class to show a Graph with Pronterface.'''

    def __init__(self, parent, id, pos=wx.DefaultPosition,
                 size=wx.DefaultSize, style=0):
        # Forcing a no full repaint to stop flickering
        style = style | wx.NO_FULL_REPAINT_ON_RESIZE
        #call super function
        #super(Graph, self).__init__(parent, id, pos, size, style)
        BufferedCanvas.__init__(self, parent, id)

        self.SetSize(wx.Size(170, 100))

        self.extruder0temps       = [0]
        self.extruder0targettemps = [0]
        self.extruder1temps       = [0]
        self.extruder1targettemps = [0]
        self.bedtemps             = [0]
        self.bedtargettemps       = [0]

        self.timer = wx.Timer(self)
        self.Bind(wx.EVT_TIMER, self.updateTemperatures, self.timer)

        self.maxyvalue  = 250
        self.ybars      = 5
        self.xbars      = 6 # One bar per 10 second
        self.xsteps     = 60 # Covering 1 minute in the graph

        self.y_offset   = 1 # This is to show the line even when value is 0 and maxyvalue

        self._lastyvalue = 0


        #self.sizer = wx.BoxSizer(wx.HORIZONTAL)
        #self.sizer.Add(wx.Button(self, -1, "Button1", (0,0)))
        #self.SetSizer(self.sizer)



    def OnPaint(self, evt):
        dc = wx.PaintDC(self)
        gc = wx.GraphicsContext.Create(dc)

    def Destroy(self):
        #call the super method
        super(wx.Panel, self).Destroy()


    def updateTemperatures(self, event):
        self.AddBedTemperature(self.bedtemps[-1])
        self.AddBedTargetTemperature(self.bedtargettemps[-1])
        self.AddExtruder0Temperature(self.extruder0temps[-1])
        self.AddExtruder0TargetTemperature(self.extruder0targettemps[-1])
        #self.AddExtruder1Temperature(self.extruder1temps[-1])
        #self.AddExtruder1TargetTemperature(self.extruder1targettemps[-1])
        self.Refresh()


    def drawgrid(self, dc, gc):
        #cold,medium,hot = wx.Colour(0,167,223),wx.Colour(239,233,119),wx.Colour(210,50.100)
        #col1 = wx.Colour(255,0,0, 255)
        #col2 = wx.Colour(255,255,255, 128)

        #b = gc.CreateLinearGradientBrush(0, 0, w, h, col1, col2)

        gc.SetPen(wx.Pen(wx.Colour(255,0,0,0), 4))
        #gc.SetBrush(gc.CreateBrush(wx.Brush(wx.Colour(245,245,255,252))))
        #gc.SetBrush(b)
        gc.DrawRectangle(0, 0, self.width, self.height)

        #gc.SetBrush(wx.Brush(wx.Colour(245,245,255,52)))

        #gc.SetBrush(gc.CreateBrush(wx.Brush(wx.Colour(0,0,0,255))))
        #gc.SetPen(wx.Pen(wx.Colour(255,0,0,0), 4))

        #gc.DrawLines(wx.Point(0,0), wx.Point(50,10))

        #path = gc.CreatePath()
        #path.MoveToPoint(0.0, 0.0)
        #path.AddLineToPoint(0.0, 100.0)
        #path.AddLineToPoint(100.0, 0.0)
        #path.AddCircle( 50.0, 50.0, 50.0 )
        #path.CloseSubpath()
        #gc.DrawPath(path)
        #gc.StrokePath(path)


        font = wx.Font(10, wx.DEFAULT, wx.NORMAL, wx.BOLD)
        gc.SetFont(font, wx.Colour(23,44,44))

        dc.SetPen(wx.Pen(wx.Colour(225,225,225), 1))
        for x in range(self.xbars):
            dc.DrawLine(x*(float(self.width)/self.xbars), 0, x*(float(self.width)/self.xbars), self.height)

        dc.SetPen(wx.Pen(wx.Colour(225,225,225), 1))
        for y in range(self.ybars):
            y_pos = y*(float(self.height)/self.ybars)
            dc.DrawLine(0,y_pos, self.width,y_pos)
            gc.DrawText(unicode(int(self.maxyvalue - (y * (self.maxyvalue/self.ybars)))), 1, y_pos - (font.GetPointSize() / 2))

        if self.timer.IsRunning() == False:
            font = wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.BOLD)
            gc.SetFont(font, wx.Colour(3,4,4))
            gc.DrawText("Graph offline", self.width/2 - (font.GetPointSize() * 3), self.height/2 - (font.GetPointSize() * 1))

        #dc.DrawCircle(50,50, 1)

        #gc.SetPen(wx.Pen(wx.Colour(255,0,0,0), 1))
        #gc.DrawLines([[20,30], [10,53]])
        #dc.SetPen(wx.Pen(wx.Colour(255,0,0,0), 1))

    def drawtemperature(self, dc, gc, temperature_list, text, text_xoffset, r, g, b, a):
        if self.timer.IsRunning() == False:
            dc.SetPen(wx.Pen(wx.Colour(128,128,128,128), 1))
        else:
            dc.SetPen(wx.Pen(wx.Colour(r,g,b,a), 1))

        x_add = float(self.width)/self.xsteps
        x_pos = float(0.0)
        lastxvalue = float(0.0)

        for temperature in (temperature_list):
            y_pos = int((float(self.height-self.y_offset)/self.maxyvalue)*temperature) + self.y_offset
            if (x_pos > 0.0): # One need 2 points to draw a line.
                dc.DrawLine(lastxvalue,self.height-self._lastyvalue, x_pos, self.height-y_pos)

            lastxvalue = x_pos
            x_pos = float(x_pos) + x_add
            self._lastyvalue = y_pos

        if len(text) > 0:
            font = wx.Font(8, wx.DEFAULT, wx.NORMAL, wx.BOLD)
            #font = wx.Font(8, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
            if self.timer.IsRunning() == False:
                gc.SetFont(font, wx.Colour(128,128,128))
            else:
                gc.SetFont(font, wx.Colour(r,g,b))

            #gc.DrawText(text, self.width - (font.GetPointSize() * ((len(text) * text_xoffset + 1))), self.height - self._lastyvalue - (font.GetPointSize() / 2))
            gc.DrawText(text, x_pos - x_add - (font.GetPointSize() * ((len(text) * text_xoffset + 1))), self.height - self._lastyvalue - (font.GetPointSize() / 2))
            #gc.DrawText(text, self.width - (font.GetPixelSize().GetWidth() * ((len(text) * text_xoffset + 1) + 1)), self.height - self._lastyvalue - (font.GetPointSize() / 2))


    def drawbedtemp(self, dc, gc):
        self.drawtemperature(dc, gc, self.bedtemps, "Bed",2, 255,0,0, 128)

    def drawbedtargettemp(self, dc, gc):
        self.drawtemperature(dc, gc, self.bedtargettemps, "Bed Target",2, 255,120,0, 128)


    def drawextruder0temp(self, dc, gc):
        self.drawtemperature(dc, gc, self.extruder0temps, "Ex0",1, 0,155,255, 128)

    def drawextruder0targettemp(self, dc, gc):
        self.drawtemperature(dc, gc, self.extruder0targettemps, "Ex0 Target",2, 0,5,255, 128)


    def drawextruder1temp(self, dc, gc):
        self.drawtemperature(dc, gc, self.extruder1temps, "Ex1",3, 55,55,0, 128)

    def drawextruder1targettemp(self, dc, gc):
        self.drawtemperature(dc, gc, self.extruder1targettemps, "Ex1 Target",2, 55,55,0, 128)


    def SetBedTemperature(self, value):
        self.bedtemps.pop()
        self.bedtemps.append(value)

    def AddBedTemperature(self, value):
        self.bedtemps.append(value)
        if (len(self.bedtemps)-1) * float(self.width)/self.xsteps > self.width:
            self.bedtemps.pop(0)


    def SetBedTargetTemperature(self, value):
        self.bedtargettemps.pop()
        self.bedtargettemps.append(value)

    def AddBedTargetTemperature(self, value):
        self.bedtargettemps.append(value)
        if (len(self.bedtargettemps)-1) * float(self.width)/self.xsteps > self.width:
            self.bedtargettemps.pop(0)


    def SetExtruder0Temperature(self, value):
        self.extruder0temps.pop()
        self.extruder0temps.append(value)

    def AddExtruder0Temperature(self, value):
        self.extruder0temps.append(value)
        if (len(self.extruder0temps)-1) * float(self.width)/self.xsteps > self.width:
            self.extruder0temps.pop(0)


    def SetExtruder0TargetTemperature(self, value):
        self.extruder0targettemps.pop()
        self.extruder0targettemps.append(value)

    def AddExtruder0TargetTemperature(self, value):
        self.extruder0targettemps.append(value)
        if (len(self.extruder0targettemps)-1) * float(self.width)/self.xsteps > self.width:
            self.extruder0targettemps.pop(0)


    def SetExtruder1Temperature(self, value):
        self.extruder1temps.pop()
        self.extruder1temps.append(value)

    def AddExtruder1Temperature(self, value):
        self.extruder1temps.append(value)
        if (len(self.extruder1temps)-1) * float(self.width)/self.xsteps > self.width:
            self.extruder1temps.pop(0)


    def SetExtruder1TargetTemperature(self, value):
        self.extruder1targettemps.pop()
        self.extruder1targettemps.append(value)

    def AddExtruder1TargetTemperature(self, value):
        self.extruder1targettemps.append(value)
        if (len(self.extruder1targettemps)-1) * float(self.width)/self.xsteps > self.width:
            self.extruder1targettemps.pop(0)


    def StartPlotting(self, time):
        self.Refresh()
        self.timer.Start(time)

    def StopPlotting(self):
        self.timer.Stop()
        self.Refresh()

    def draw(self, dc, w, h):
        dc.Clear()
        gc = wx.GraphicsContext.Create(dc)
        self.width = w
        self.height = h
        self.drawgrid(dc, gc)
        self.drawbedtargettemp(dc, gc)
        self.drawbedtemp(dc, gc)
        self.drawextruder0targettemp(dc, gc)
        self.drawextruder0temp(dc, gc)
        self.drawextruder1targettemp(dc, gc)
        self.drawextruder1temp(dc, gc)


