# Copyright (c) 2019 Esben Rossel
 # All rights reserved.
 #
 # Author: Esben Rossel <esbenrossel@gmail.com>
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.

import os
import tkinter as tk
from PIL import Image,ImageTk

def center_window(size, window) :
    window_width = size[0] #Fetches the width you gave as arg. Alternatively window.winfo_width can be used if width is not to be fixed by you.
    window_height = size[1] #Fetches the height you gave as arg. Alternatively window.winfo_height can be used if height is not to be fixed by you.
    if window==None:
        window_x = 200
        window_y = 200
    else:
        window_x = int((window.winfo_screenwidth() / 2) - (window_width / 2)) #Calculates the x for the window to be in the centre
        window_y = int((window.winfo_screenheight() / 2) - (window_height / 2)) #Calculates the y for the window to be in the centre

    window_geometry = str(window_width) + 'x' + str(window_height) + '+' + str(window_x) + '+' + str(window_y) #Creates a geometric string argument
    window.geometry(window_geometry) #Sets the geometry accordingly.
    return





      
def jfshelpme(win,helpfor):
    #### this is where we store the pictures etc
    directory_path = os.path.dirname(__file__)
    file_path = os.path.join(directory_path, 'images\\')

    top = tk.Toplevel(win)
    scrolling = tk.Scrollbar(top)
    scrolling.pack(side=tk.RIGHT, fill=tk.Y)
    
    frame = tk.Frame(top)
    frame.pack()
    text = tk.Text(frame, height=30, width=100, wrap=tk.WORD)
    text.pack(side=tk.LEFT, fill=tk.Y)
    scrolling.config(command=text.yview)
    text.config(yscrollcommand=scrolling.set)
   
    image1 = Image.open(file_path+'nm405.gif')
    photoImg = ImageTk.PhotoImage(image1)
    image2 = Image.open(file_path+'methods.gif')
    photoImg2= ImageTk.PhotoImage(image2)
    image3 = Image.open(file_path+'kinetics.gif')
    photoImg3= ImageTk.PhotoImage(image3)

    text.tag_configure('it', font=('Arial', 10, 'italic'))
    text.tag_configure('h1', font=('Verdana', 16, 'bold'))
    text.tag_configure('h2', font=('Verdana', 12, 'bold'))
    text.tag_configure('h3', font=('Verdana', 10, 'bold'))

    if (helpfor == 0): #do you need help with the device?
        text.image_create(tk.END,image=photoImg)
        text.insert(tk.END, " Calibration\n", 'h1')
        text.insert(tk.END, "\nTo calibrate the Instrument we need two laserpointer of different colors und known wavelength.\nFor example a blue [405nm] and red [650nm] one.\n")
        text.insert(tk.END, "1) First take two messurements with your device und save the files with the [Save] button under a comprehensible name (e.g. 405nm.data) \n")
        text.insert(tk.END, "2) Open the calibration dialog and insert the wavelength in [nm] and afterwards select the respective file. <first peak> stands for the lower and <second peak> for the higher wavelength.\n")
        text.insert(tk.END, "3) Now you can use the [Calibrate] button to calibrate the instrument and [Save Config] will the store the configuration.\n")
        text.insert(tk.END,"\nAfter this procedure you can switch the [nm] scale on and use other option:\n")
        text.insert(tk.END,'\nMethods\n','h2')
        text.insert(tk.END,"\nAs a Photometer to messure the transmittance or absorbance depending on the concentration of colored compounds.\n\n")
        text.image_create(tk.END,image=photoImg2)
        text.insert(tk.END,"\n\nKinetic\n",'h2')
        text.insert(tk.END,"\nThe instrument can messure in specific intervalls over time the change in absorbance. From this data it is possible to determine the rate of the reaction.\n")
        text.image_create(tk.END,image=photoImg3)
    ### at the end
    text.config(state=tk.DISABLED)
    top.focus_set()
    top.grab_set()
    top.wait_window()