import os
import sys
import ROOT
import copy
import math
import time
import ctypes
from array import array
from Alignment.OfflineValidation.DivergingColor import DivergingColor

'''
Class for the TkAlMap plots
to produce the plots use Alignment/OfflineValidation/python/runGCPTkAlMap.py 
'''

#TEST_COLOR_IDX = 2000
#TEST_COLOR = ROOT.TColor(TEST_COLOR_IDX, (0.)/255., (0.)/255., (255+0.)/255.)

KNOWN_VARIABLES = {
    'dr': {
        'name' : '#Deltar',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'dx': {
        'name' : '#Deltax',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'dy': {
        'name' : '#Deltay',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'dz': {
        'name' : '#Deltaz',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'rdphi': {
        'name' : 'r #Delta#phi',
        'units': '#mum rad',
        'scale': 10000.,
        'range': [-100., 100.],
        },
    'dphi': {
        'name' : '#Delta#phi',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },
    'dalpha': {
        'name' : '#Delta#alpha',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },
    'dbeta': {
        'name' : '#Delta#beta',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },
    'dgamma': {
        'name' : '#Delta#gamma',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },
    'du': {
        'name' : '#Deltau',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'dv': {
        'name' : '#Deltav',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'dw': {
        'name' : '#Deltaw',
        'units': '#mum',
        'scale': 10000.,
        'range': [-200., 200.],
        },
    'da': {
        'name' : '#Deltaa',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },
    'db': {
        'name' : '#Deltab',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },
    'dg': {
        'name' : '#Deltag',
        'units': 'mrad',
        'scale': 1000.,
        'range': [-100., 100.],
        },  
}

#ROOT.gStyle.SetLineScalePS(1)

def mean(data_list):
    return sum(data_list)/(len(data_list)+0.)
	
def StdDev(data_list):
    s2 = 0.
    m = mean(data_list)
    for point in data_list:
    	s2 += (point-m)**2
    return math.sqrt(s2/(len(data_list)+0.))

def read_TPLfile(file_name):
    o_file = open(file_name, 'r')
    lines = o_file.readlines()
    o_file.close()

    TPL_dict = {}
    for line in lines:
        if '#' in line: continue
        splt_line = line.replace('\n', '').split(' ')
        det_id = int(splt_line[0])
        x = []
        y = []
        for idx,coo in enumerate(splt_line[1:]):
            #print(coo)
            try:
                val = float(coo)
                if (idx%2) == 0: 
                    y.append(val)
                else: 
                    x.append(val)
            except ValueError:
                continue
        TPL_dict[det_id] = {}
        TPL_dict[det_id]['x'] = x
        TPL_dict[det_id]['y'] = y
    return TPL_dict

class TkAlMap:

    #def __init__(self, variable, title, root_file, two_sigma_cap=False, width=1500, height=800, GEO_file='TkMap_design_cfg.py', tracker='full'):
    def __init__(self, variable, title, root_file, use_default_range=False, two_sigma_cap=False, height=1400, GEO_file='TkAlMapDesign_phase1_cfg.py', tracker='full', palette=2, do_tanh=False, check_tracker=True):
        ROOT.gStyle.SetLineScalePS(1)

        # Configuration parameters
        self.GEO_file      = GEO_file
        self.tracker       = tracker
        self.width         = height 
        self.height        = height
        self.title         = title
        self.default_range = use_default_range
        self.two_sigma_cap = two_sigma_cap
        self.root_file     = root_file
        self.do_tanh       = do_tanh

        # Value Initialization
        self.max_val           = None
        self.min_val           = None
        self.color_bar_colors  = {}
        self.tree              = None
        self.is_cleaned        = False

        # Internal parameters    
        self.data_path = 'Alignment/OfflineValidation/data/TkAlMap/'
        self.cfg_path = 'Alignment/OfflineValidation/python/TkAlMap_cfg/'

        # Colorbar stuff
        self.start_color_idx   = 1200
        self.n_color_color_bar = 1000
 
        # Initialization functions
        self.set_palette(palette)
        self.set_var(variable)
        self.load_tree()
        if check_tracker: self.detect_tracker_version()
        self.load_geometry()
        self.set_colorbar_colors()

    def set_var(self, var, var_range=[None, None]):
        print('TkAlMap: setting variable to '+var)
        self.var = var
        self.var_name = var
        self.var_units = 'cm'
        self.var_scale = 1.
        self.var_min = var_range[0]
        self.var_max = var_range[1]
        if var in KNOWN_VARIABLES:
            self.var_name  = KNOWN_VARIABLES[var]['name']
            self.var_units = KNOWN_VARIABLES[var]['units']
            self.var_scale = KNOWN_VARIABLES[var]['scale']
            if self.var_min is None: self.var_min = KNOWN_VARIABLES[var]['range'][0]
            if self.var_max is None: self.var_max = KNOWN_VARIABLES[var]['range'][1]
        self.set_canvas()

    def set_canvas(self):
        canv_name = 'canvas_'+self.tracker+'_'+self.var
        if self.two_sigma_cap: canv_name += '_cap'
        self.canvas = ROOT.TCanvas(canv_name, 'TkAlMap '+self.var+' canvas', self.width, self.height)
        print('Actual w: '+str(self.canvas.GetWw())+', Actual h: '+str(self.canvas.GetWh()))

#### Color setup
    def setup_colors(self):
        self.load_var()
        self.prepare_map_colors()
        self.fill_colors()

    def prepare_map_colors(self):
        print('TkAlMap: preparing map colors')
        
        self.colors = []
        #self.palette = array('i', [])
        col_idx = self.start_color_idx + self.n_color_color_bar + 10
        self.col_dic = {} #Never used explicitly but needs to keep TColor values in the global memory
        self.rgb_map = {}
        #pal_idx = 0
        #self.pal_map = {}
        for val in self.val_list:
            cap_val = val
            if cap_val > self.max_val: cap_val = self.max_val
            if cap_val < self.min_val: cap_val = self.min_val
            r, g, b = self.get_color_rgb(cap_val)
            idx = self.get_color_rgb_idx(cap_val)
            if idx in self.colors: continue
            self.colors.append(idx)
            col_idx +=1
            self.rgb_map[idx] = col_idx

            try:
                col = ROOT.gROOT.GetColor(col_idx) #Here still OK
                col.SetRGB((r+0.)/255., (g+0.)/255., (b+0.)/255.) #Here segmentation if color index does not exist
                self.col_dic[idx] = col #Here the new color is saved in in the global variable
            except:
                #Here the 6 argument TColor init with dummy rgb must be used, 4 argument one does not work (ROOT bug?)
                #New color index is defined and SetRGB must also be called to overwrite dummy rgb
                col = ROOT.TColor(col_idx, 0., 0., 0., "", 1)
                col.SetRGB((r+0.)/255., (g+0.)/255., (b+0.)/255.)
                self.col_dic[idx] = col #Here the new color is saved in in the global variable
            #self.palette.append(col_idx)
        print('TkAlMap: map contains '+str(len(self.colors))+' colors')
     
    def set_palette(self, palette):
        self.palette = palette
        pal_str = 'TkAlMap: setting the palette to '+str(palette)
        if palette == 1: pal_str += ' (rainbow)'
        elif palette == 2: pal_str += ' (B->R diverging)'
        else: raise ValueError('TkAlMap: unkown palette value '+str(palette)+', allowed values are 1 and 2')
        print(pal_str)
        #ROOT.gstyle.SetPalette(len(self.colors), self.colors)
        #ROOT.gStyle.SetPalette(len(self.palette), self.palette)
        pass

    def get_color_rgb(self, val):
        if self.max_val is None or self.min_val is None:
            value_frac = val
        else:
            if self.do_tanh:
                val_th = math.tanh((val - self.mean_val)/(self.std_val))
                max_th = math.tanh((self.max_val - self.mean_val)/(self.std_val))
                min_th = math.tanh((self.min_val - self.mean_val)/(self.std_val))
                value_frac = (val_th - min_th + 0.)/(max_th - min_th)
            else:
                value_range = self.max_val - self.min_val
                if value_range == 0.: value_frac = 0.5
                else: value_frac = (val - self.min_val + 0.)/(value_range + 0.)
        if self.palette == 1:
            r = 255
            g = 255
            b = 255

            if value_frac < 0.25:
                r = 0
                g = int(255.*((value_frac/0.25)))
                b = 255         
            elif value_frac < 0.5:
                r = 0
                g = 255
                b = int(255.*(1. -(value_frac - 0.25)/0.25)) 
            elif value_frac < 0.75:
                r = int(255.*((value_frac - 0.5)/0.25))
                g = 255
                b = 0 
            else:
                r = 255 
                g = int(255.*(1. -(value_frac - 0.75)/0.25)) 
                b = 0
            return r, g, b 
        elif self.palette == 2:
            red   = [59,   76, 192]
            blue  = [180,   4,  38]
            white = [255, 255, 255] 
            r, g, b = DivergingColor(red, blue, white, value_frac) 
            return r, g, b
        else: raise ValueError('TkAlMap: unkown palette value '+str(palette)+', allowed values are 1 and 2')

    def get_color_rgb_idx(self, val):
        r, g, b = self.get_color_rgb(val)
        #return r*1000000+g*1000+b+1000000000
        offset = 100
        return int(r*255*255 + g*255 + r + g + b + offset)

    def fill_colors(self):
        print('TkAlMap: filling the colors')
        #self.set_palette()
        for module in self.mod_val_dict:
            if module in self.TkAlMap_TPL_dict:
                val = self.mod_val_dict[module]
                cap_val = val
                if cap_val > self.max_val: cap_val = self.max_val
                if cap_val < self.min_val: cap_val = self.min_val
                rgb = self.get_color_rgb_idx(cap_val)
                col = self.rgb_map[rgb]
                #col = self.pal_map[rgb]
                #col = self.col_dic[rgb]
                self.TkAlMap_TPL_dict[module].SetFillColor(col)
                #self.TkAlMap_TPL_dict[module].SetFillColor(TEST_COLOR_IDX)
            ####else: print('Warning: Unknown module '+str(module))

    def set_colorbar_axis(self):
        print('TkAlMap: setting color bar axis')
        b_x1 = self.image_x1
        b_x2 = self.image_x2
        b_y1 = 0.06
        b_y2 = 0.06
        b_width = 0.01
        self.color_bar_axis = ROOT.TGaxis(b_x1, b_y1, b_x2, b_y2, self.min_val, self.max_val, 50510, '+S')
        self.color_bar_axis.SetName('color_bar_axis')
        self.color_bar_axis.SetLabelSize(0.02)
        self.color_bar_axis.SetTickSize(0.01)
        if self.two_sigma_cap and not self.default_range: self.color_bar_axis.SetTitle('{#mu - 2#sigma #leq '+self.var_name+' #leq #mu + 2#sigma} ['+self.var_units+']')
        elif self.default_range: self.color_bar_axis.SetTitle('{'+str(self.min_val)+' #leq '+self.var_name+' #leq '+str(self.max_val)+'} ['+self.var_units+']')
        else: self.color_bar_axis.SetTitle(self.var_name+' ['+self.var_units+']')
        self.color_bar_axis.SetTitleSize(0.025)

    def set_colorbar_colors(self):
        print('TkAlMap: initialize color bar colors')
        if self.max_val is None or self.min_val is None:
            col_step = 1./(self.n_color_color_bar + 0.)
            val = col_step/2.
        else:
            b_range = self.max_val - self.min_val
            col_step = (b_range + 0.)/(self.n_color_color_bar + 0.)
            val = self.min_val + col_step/2.

        b_x1 = self.image_x1
        b_x2 = self.image_x2
        b_y1 = 0.06
        b_y2 = 0.06
        b_width = 0.01
        b_xrange = b_x2 - b_x1
        b_yrange = b_y2 - b_y1
        b_dx = (b_xrange + 0.)/(self.n_color_color_bar + 0.)
        b_dy = (b_yrange + 0.)/(self.n_color_color_bar + 0.)

        self.color_bar = {}
        x1 = b_x1
        y1 = b_y1
            
        col_idx = self.start_color_idx
        for i_c in range(self.n_color_color_bar):
            col_idx += 1
            r, g, b = self.get_color_rgb(val)
            try:
                col = ROOT.gROOT.GetColor(col_idx) #Here still OK
                col.SetRGB((r+0.)/255., (g+0.)/255., (b+0.)/255.) #Here segmentation if color index does not exist
                self.color_bar_colors[col_idx] = col #Here the new color is saved in in the global variable
            except:
                #Here the 6 argument TColor init with dummy rgb must be used, 4 argument one does not work (ROOT bug?)
                #New color index is defined and SetRGB must also be called to overwrite dummy rgb
                col = ROOT.TColor(col_idx, 0., 0., 0., "", 1)
                col.SetRGB((r+0.)/255., (g+0.)/255., (b+0.)/255.)
                self.color_bar_colors[col_idx] = col #Here the new color is saved in in the global variable 
            x2 = x1 + b_dx 
            y2 = y1 + b_dy + b_width 
            x = array('d', [x1, x1, x2, x2])
            y = array('d', [y1, y2, y2, y1])
            self.color_bar[col_idx] = ROOT.TPolyLine(len(x), x, y)
            self.color_bar[col_idx].SetFillColor(col_idx)
            self.color_bar[col_idx].SetLineColor(col_idx)
 
            x1 += b_dx
            y1 += b_dy
            val += col_step

#### Load functions
    def load_tree(self):
        print('TkAlMap: loading tree ')
        tree_name = 'alignTree'
        r_file = ROOT.TFile(self.root_file)
        if r_file is None: raise ValueError('The file "'+self.root_file+'" could not be opened')

        tree_tmp = r_file.Get(tree_name)
        #self.tree = copy.deepcopy(tree_tmp)
        self.tmp_file_name = str(time.time()).replace('.', '_')+'_TkAlMapTempFile.root'
        self.tmp_file = ROOT.TFile(self.tmp_file_name, 'recreate')
        self.tree = tree_tmp.CloneTree()
        r_file.Close()
        self.is_cleaned = False

        if self.tree is None: raise ValueError('The tree "'+tree_name+'" was not found in file "'+self.root_file+'"')
        


    def load_var(self):
        print('TkAlMap: loading variable values ')
        #tree_name = 'alignTree'
        #r_file = ROOT.TFile(self.root_file)
        #if r_file is None: raise ValueError('The file "'+self.root_file+'" could not be opened')

        #tree_tmp = r_file.Get(tree_name)
        #tree = copy.deepcopy(tree_tmp)
        #r_file.Close()

        #if tree is None: raise ValueError('The tree "'+tree_name+'" was not found in file "'+self.root_file+'"')

        self.mod_val_dict = {}
        self.val_list = []
        for event in self.tree:
            module = event.id
            var = self.var
            if var == 'rdphi':
                val = getattr(event, 'r')*getattr(event, 'dphi')
            else: 
                val = getattr(event, var)
            val *= self.var_scale
            self.mod_val_dict[module] = val
            #if val not in self.val_list: self.val_list.append(val)
            if module in self.TkAlMap_TPL_dict: self.val_list.append(val)
            ####else:
            ####    if 'full' in self.tracker:
            ####        print('Warning: Unknown module '+str(module))
        #r_file.Close()
        if len(self.val_list) == 0:
            print('Warning: no values filled, 0 moduleId\'s matched')
            self.val_list = [-10+idx*0.5 for idx in range(41)]
        self.val_list.sort()
        self.mean_val = mean(self.val_list)
        self.std_val = StdDev(self.val_list)
        self.min_val = min(self.val_list) 
        self.max_val = max(self.val_list)
        
        if self.two_sigma_cap and not self.default_range:
           print('-- Capping max and min: ')
           print('---- True values   : '+str(self.max_val)+', '+str(self.min_val))
           self.min_val = max(min(self.val_list), self.mean_val - 2*self.std_val)
           self.max_val = min(max(self.val_list), self.mean_val + 2*self.std_val)
           print('---- Capped values : '+str(self.max_val)+', '+str(self.min_val))

        if self.default_range:
           #if not self.var in KNOWN_VARIABLES: print('Warning: capping to default range not possible for unknown variable "'+self.var+'"')
           if self.var_min is None or self.var_max is None: print('Warning: capping to default range for unknown variable "'+self.var+'" while range was not set is not possible')
           else:
               print('-- Capping max and min to default ranges: ')
               print('---- True values   : '+str(self.max_val)+', '+str(self.min_val))
               self.min_val = self.var_min
               self.max_val = self.var_max
               print('---- Capped values : '+str(self.max_val)+', '+str(self.min_val))

        if self.min_val == self.max_val:
            print('Warning: minimum value was equal to maximum value, '+str(self.max_val))
            self.min_val = self.mean_val - 1.
            self.max_val = self.mean_val + 1.

        #print(self.val_list)

    def detect_tracker_version(self):
        print('TkAlMap: detecting Tk version')
        #tree_name = 'alignTree'
        #r_file = ROOT.TFile(self.root_file)
        #if r_file is None: raise ValueError('The file "'+self.root_file+'" could not be opened')

        ##tree = r_file.Get(tree_name)
        #tree_tmp = r_file.Get(tree_name)
        #tree = copy.deepcopy(tree_tmp)
        #r_file.Close()

        #if tree is None: raise ValueError('The tree "'+tree_name+'" was not found in file "'+self.root_file+'"')
        phase = None
        for event in self.tree:
            module = event.id
            if module > 303040000 and module < 306450000:
                phase = 1
                break
            elif module > 302055000 and module < 302198000:
                phase = 0 
                break
        #r_file.Close()

        if phase is None: raise ValueError('TkAlMap: unknown tracker detected, is this phase2?')
        
        pahse_str = 'phase'+str(phase)
        print('TkAlMap: '+pahse_str+' tracker detected')
        if not pahse_str in self.GEO_file:
            print('TkAlMap: changing tracker to '+pahse_str+ ', if this is unwanted set "check_tracker" to False')
            self.GEO_file = 'TkAlMapDesign_'+pahse_str+'_cfg.py'
            #self.load_geometry()

    def load_geometry(self):
        source_path = os.getenv('CMSSW_BASE') + '/src/' 
        var = {}
        if sys.version_info[0] == 2:
            execfile(source_path + self.cfg_path + self.GEO_file, var)
        elif sys.version_info[0] == 3:
            _filename = source_path + self.cfg_path + self.GEO_file
            exec(compile(open(_filename, "rb").read(), _filename, 'exec'), var)

        MapStructure = var['TkMap_GEO']
        
        all_modules = {}
        all_text = {}
        x_max = -9999.
        y_max = -9999.
        x_min = 9999.
        y_min = 9999.
        for det in MapStructure:
            if 'pixel' in self.tracker:
                if not 'pixel' in det: continue 
            elif 'strips' in self.tracker:
                if not 'strips' in det: continue 
            for sub in MapStructure[det]:
                for part in MapStructure[det][sub]:
                    if part == 'latex':
                        all_text[det+'_'+sub] = MapStructure[det][sub][part]
                        continue
                    if 'latex' in MapStructure[det][sub][part]:
                        all_text[det+'_'+sub+'_'+part] = MapStructure[det][sub][part]['latex']
                    _filename = self.data_path +MapStructure[det][sub][part]['file']
                    TPL_file = [os.path.join(dir,_filename) for dir in os.getenv('CMSSW_SEARCH_PATH','').split(":") if os.path.exists(os.path.join(dir,_filename))][0]
                    TPL_dict = read_TPLfile(TPL_file)
                    for module in TPL_dict:
                        x_canv = []
                        y_canv = []
                        for idx in range(len(TPL_dict[module]['x'])):
                            x_canv.append(TPL_dict[module]['x'][idx]*MapStructure[det][sub][part]['x_scale'] + MapStructure[det][sub][part]['x_off'])
                            y_canv.append(TPL_dict[module]['y'][idx]*MapStructure[det][sub][part]['y_scale'] + MapStructure[det][sub][part]['y_off'])
                        if max(x_canv) > x_max: x_max = max(x_canv)
                        if max(y_canv) > y_max: y_max = max(y_canv)
                        if min(x_canv) < x_min: x_min = min(x_canv)
                        if min(y_canv) < y_min: y_min = min(y_canv)
                        TPL_dict[module]['x'] = x_canv
                        TPL_dict[module]['y'] = y_canv
                    all_modules.update(TPL_dict)

        r_margin = 3
        l_margin = 3
        #t_margin = 15
        t_margin = 11
        b_margin = 8

        x_max += r_margin
        x_min -= l_margin
        y_max += t_margin
        y_min -= b_margin

        x_range = x_max - x_min
        y_range = y_max - y_min

        self.width = int(self.height*(x_range + 0.)/(y_range + 0.))
        self.canvas.SetWindowSize(self.width, self.height)

        if (x_range + 0.)/(self.width + 0.) > (y_range + 0.)/(self.height + 0.):
            x_scale = x_range
            y_scale = (self.height + 0.)/(self.width + 0.)*x_range
        else:
            y_scale = y_range
            x_scale = (self.width + 0.)/(self.height + 0.)*y_range
        self.TkAlMap_TPL_dict = {} 
        for module in all_modules:
            x = array('d', [])
            y = array('d', [])
            for idx in range(len(all_modules[module]['x'])):
                x.append((all_modules[module]['x'][idx] - x_min + 0.)/(x_scale + 0.))
                y.append((all_modules[module]['y'][idx] - y_min + 0.)/(y_scale + 0.))
            # Begin point is end point
            x.append((all_modules[module]['x'][0] - x_min + 0.)/(x_scale + 0.))
            y.append((all_modules[module]['y'][0] - y_min + 0.)/(y_scale + 0.))
            #print(x, y)
            self.TkAlMap_TPL_dict[module] = ROOT.TPolyLine(len(x), x, y) 
            #self.TkAlMap_TPL_dict[module].SetFillColor(1)
            self.TkAlMap_TPL_dict[module].SetLineColor(1)
            #print('lineW', self.TkAlMap_TPL_dict[module].GetLineWidth())
            #self.TkAlMap_TPL_dict[module].Draw('f')
            #self.TkAlMap_TPL_dict[module].Draw()

        self.image_x1 = (l_margin + 0.)/(x_scale + 0.) 
        self.image_x2 = (x_max - r_margin - x_min + 0.)/(x_scale + 0.) 
        self.image_y1 = (b_margin + 0.)/(y_scale + 0.) 
        self.image_y2 = (y_max - t_margin - y_min + 0.)/(y_scale + 0.) 

        self.x_scale = x_scale
        self.y_scale = y_scale

        #TL = ROOT.TLatex()
        #TL.SetTextSize(0.025)
        self.TkAlMap_text_dict = {}
        for key in all_text:
            x = (all_text[key]['x'] - x_min + 0.)/(x_scale + 0.)
            y = (all_text[key]['y'] - y_min + 0.)/(y_scale + 0.)
            self.TkAlMap_text_dict[key] = {}
            self.TkAlMap_text_dict[key]['x'] = x
            self.TkAlMap_text_dict[key]['y'] = y
            self.TkAlMap_text_dict[key]['alignment'] = all_text[key]['alignment']
            self.TkAlMap_text_dict[key]['text'] = all_text[key]['text']
            #TL.SetTextAlign(all_text[key]['alignment'])
            #TL.DrawLatex(x, y, all_text[key]['text'])

#### Titles and info
    def draw_title(self):
        TL = ROOT.TLatex()
        TL.SetTextSize(0.035)
        TL.SetTextFont(42)
        TL.SetTextAlign(13)
        x1 = self.image_x1
        y1 = 1-(5./(self.y_scale+0.))
        self.canvas.cd()
        TL.DrawLatex(x1, y1, self.title)
         
    def draw_cms_prelim(self):
        TL = ROOT.TLatex()
        factor = 1. / 0.82
        TL.SetTextSize(0.035*factor)
        TL.SetTextAlign(11)
        TL.SetTextFont(61)

        w_cms = ctypes.c_uint(0)
        h_cms = ctypes.c_uint(0)
        TL.GetTextExtent(w_cms, h_cms, 'CMS')
        x1 = self.image_x1
        y1 = 1. - (h_cms.value+0.)/(self.height+0.) - (1./(self.y_scale+0.))
        self.canvas.cd()
        TL.DrawLatex(x1, y1, 'CMS')
  
        TL.SetTextSize(0.035)
        TL.SetTextFont(42)
        x1_prel = x1 + 1.1*(w_cms.value+0.)/(self.width+0.)
        TL.DrawLatex(x1_prel, y1, '#it{Preliminary}')
        
        self.draw_event_info(y1)

    def draw_event_info(self, y):
        TL = ROOT.TLatex()
        TL.SetTextSize(0.035)
        TL.SetTextFont(42)
        TL.SetTextAlign(31)

        x1 = self.image_x2
        y1 = y
        self.canvas.cd()
        TL.DrawLatex(x1, y1, 'pp collisions 13TeV')
        

#### Draw functions
    def draw_text(self):
        print('TkAlMap: drawing text')
        self.canvas.cd()
        TL = ROOT.TLatex()
        TL.SetTextSize(0.025)
        for key in self.TkAlMap_text_dict:
            TL.SetTextAlign(self.TkAlMap_text_dict[key]['alignment'])
            TL.DrawLatex(self.TkAlMap_text_dict[key]['x'], self.TkAlMap_text_dict[key]['y'], self.TkAlMap_text_dict[key]['text'])
        self.draw_cms_prelim()
        self.draw_title()
        self.canvas.Update()

    def draw_TPL(self):
        print('TkAlMap: drawing PolyLines')
        self.canvas.cd()
        for module in self.TkAlMap_TPL_dict:
            self.TkAlMap_TPL_dict[module].Draw('f')
            self.TkAlMap_TPL_dict[module].Draw()
        self.canvas.Update()

    def draw_color_bar(self):
        print('TkAlMap: drawing color bar')
        self.canvas.cd()
        for box in self.color_bar:
            self.color_bar[box].Draw('f')
            #self.color_bar[box].Draw()
        self.color_bar_axis.Draw()
        self.canvas.Update()

    def save(self, out_dir='.', extension='pdf'):
        name = '_'.join(['TkAlMap', self.tracker, self.var])
        if self.two_sigma_cap and not self.default_range:
            name += '_4sig'
        elif self.default_range:
            name += '_drange'
        path = out_dir + '/' + name + '.' + extension
        print('TkAlMap: saving canvas in "'+path+'"')
        self.canvas.SaveAs(path)


#### Do all
    def analyse(self):
        self.setup_colors()
        self.set_colorbar_axis()
        if self.do_tanh: self.set_colorbar_colors()
        self.draw_TPL()
        self.draw_text()
        self.draw_color_bar()

### Test functions
    def plot_variable_distribution(self, nbins=200, out_dir='.'):
        print('TkAlMap: drawing variable distribution')
        canv_name = 'histogram_canvas_'+self.tracker+'_'+self.var
        if self.two_sigma_cap: canv_name += '_cap'
        canvas = ROOT.TCanvas(canv_name, 'TkAlMap '+self.var+' histogram canvas', 800, 800)
 
        h_min = min(min(self.val_list), self.mean_val - 2*self.std_val) - self.std_val
        h_max = max(max(self.val_list), self.mean_val + 2*self.std_val) + self.std_val
        hist = ROOT.TH1F(self.var+'_hist', 'Variable distribution', nbins, h_min, h_max)
        for val in self.val_list:
            hist.Fill(val)
        hist.GetXaxis().SetTitle(self.var_name+' ['+self.var_units+']')
        hist.GetYaxis().SetTitle('modules')
        ROOT.gStyle.SetOptStat(0)
        hist.Draw('e1')
        canvas.Update()
        left = ROOT.TLine(self.mean_val - 2*self.std_val, canvas.GetUymin(), self.mean_val - 2*self.std_val, canvas.GetUymax())
        left.SetLineColor(2) 
        left.SetLineStyle(9) 
        left.Draw() 
        right = ROOT.TLine(self.mean_val + 2*self.std_val, canvas.GetUymin(), self.mean_val + 2*self.std_val, canvas.GetUymax())
        right.SetLineColor(2) 
        right.SetLineStyle(9) 
        right.Draw() 
        mid = ROOT.TLine(self.mean_val, canvas.GetUymin(), self.mean_val, canvas.GetUymax())
        mid.SetLineColor(1)
        mid.SetLineStyle(9) 
        mid.Draw()
        canvas.Update()
        name = '_'.join(['VariableDistribution', self.var, self.tracker])
        path = out_dir + '/' + name + '.png' 
        canvas.SaveAs(path)


### Clean up
    def clean_up(self):
        if not self.is_cleaned:
            print('TkAlMap: deleting temporary file "'+self.tmp_file_name+'"')
            self.tmp_file.Close()
            os.remove(self.tmp_file_name)
            self.is_cleaned = True

    def __del__(self):
        self.clean_up()


if __name__ == '__main__':
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=780, tracker='strips')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=780)
    TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=1400, GEO_file='TkAlMapDesign_phase0_cfg.py')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=780, GEO_file='TkAlMapDesign_phase0_cfg.py')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=780, GEO_file='TkAlMapDesign_phase0_cfg.py', tracker='pixel')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=780, GEO_file='TkAlMapDesign_phase1_cfg.py', tracker='pixel')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, height=780, GEO_file='TkAlMapDesign_phase0_cfg.py', tracker='strips')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True, tracker='pixel')
    #TkMap = TkAlMap('test', 'Here goes the title', 'run/tree.root', True)

    var_list = ['dx', 'dy']
    #var_list = ['dx']
    for var in var_list:
        TkMap_temp = copy.deepcopy(TkMap)
        TkMap_temp.set_var(var)
        #TkMap.load_var()
        #TkMap.draw_text()
        #TkMap.draw_TPL()
        TkMap_temp.analyse()
        TkMap_temp.save(extension='png')
        TkMap_temp.save()
    raw_input('exit')