Blender-Pipeline/UI/UI_Markdown.py

####################################
#                                  #
#        COPYRIGHT NOTICE          #
#                                  #
# This file is a part of Victori-  #
# ous Children Studio Organizer.   #
# Or simply VCStudio. Copyright    #
# of J.Y.Amihud. But don't be sad  #
# because I released the entire    #
# project under a GNU GPL license. #
# You may use Version 3 or later.  #
# See www.gnu.org/licenses if your #
# copy has no License file. Please #
# note. Ones I used the GPL v2 for #
# it. It's no longer the case.     #
#                                  #
####################################

import os
import urllib3

# GTK module ( Graphical interface
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
from gi.repository import GLib
from gi.repository import Gdk
import cairo

# Own modules
from settings import settings
from settings import talk
from settings import oscalls
from project_manager import pm_project

#UI modules
from UI import UI_elements
from UI import UI_color


################################################################################

# Markdown. Or .md file format is an easy way to give your simple text documents
# a bit of flare. Stuff like links, images and quotes are supported. Also bold
# an italic characters.



def Open(win, filename, name):

    
    
    # This function will parse a Markdown (.md) file into a readable python
    # dictionary object. That you can use for various things. 
    try:

        # If the file is local. AKA exists in the folder. And can be read.
        # Also it could be not .md

        if filename.startswith("lbry://"):

            # Sometimes the link is linking an lbry or https source.
            # meaning this link is has to be retrieved from the network.

            # For this we have to retrieve the data from the network.
            # The LBRY protocol has a little serive called spee.ch that
            # simply redirects you to the file on the protocol. Let's
            # try using it. ( the lbry3.vanwanet.com/speech/ is the
            # actuall link it redircts to )

            print("LBRY links: "+filename)
            filename = filename.replace("lbry://", "https://spee.ch/")
            print("REQUESTING: "+filename)
            http = urllib3.PoolManager()
            resp = http.request('GET', filename)
            print("FILE RECIEVED!")
            md = resp.data.decode('utf-8')
            print("FILE CONVERTED")

        
        elif not filename.endswith(".md"):
            1/0 # Quick fail switch

        else:
            # Sometimes a language File is provided. let's
            # look for it.

            l = win.settings["Language"]

            if os.path.exists(os.getcwd()+"/"+filename[:-3]+"_"+l+".md"):
                filename = filename[:-3]+"_"+l+".md"

            md = open(filename)
            md = md.read()

    except:

        # If reading fails. For example if it's a link to something on the
        # web. Then try just opening it in the standard application. 

        md = ""
        oscalls.Open(filename)
        win.current["mdfs"][name] = win.current["mdfs"]["failsafe"]
        

    # A few things before I gonna make everything. The - [ ] and the - [X] things.
    # This is the stuff I want to change to the corresponding icons.

    md = md.replace("- [ ]", "![](settings/themes/Default/icons/unchecked.png)")
    md = md.replace("- [X]", "![](settings/themes/Default/icons/checked.png)")
    md = md.replace("- [x]", "![](settings/themes/Default/icons/checked.png)")
    md = md.replace("- ", "• ")

    # This one is risky. I want to remove all the ../ so there will not be a
    # mistake.
    
    md = md.replace("../", "")

    # Spliting it for the read.
    md = md.split("\n")
    
    # First thing is I was to read the headings and convert it into a tree.
    
    
    tree = []
    indent = 1
    c = []
    
    for line in md:
    
        ty = "text"
        te = line
        
        # Here I want to simply get a type of each line. Later we going to parse
        # the links and other things. But first. Let's parse stuff based on
        # lines.
        
        if line.startswith("#"):
            # The titles of the chapter. The Headers are usually written similar
            # to how here in python you write comments. It's a # , space, and the
            # text.
            
            # The amount of hashes. ## or ### gives different sized text. Officialy
            # it should support up to 6 hashes. ######. But why not make it more
            # just in case.
            
            ty = line.count("#") # This might give bugs
        
        elif line.startswith("> "):
            
            # The > sign in the Markdown language is used for quatations. 
            
            ty = "quote"
            
        tree.append([ty, te+"\n"])        
        
    # Now the stage 0 is over and we parsed the basic things. Now is the hard
    # part to parse out all the images and stuff inside them. It's going to be
    # done per part. And we are going to use the same technique I used for the
    # conversion of the legacy projects. See : studio/story.py
    
    # We are going to itterate over each letter. And decide what to do by that
    
    newtree = []
    
    for block in tree:
        
        part = ""
        skip = 0
        
        for n, l in enumerate(block[-1]):
            
            if skip > n:
                continue
            
            part = part + l
            
            # Here we are going to do something if a give condition is met.
            # Usually I gonna do something if [part] ends with a given markdown
            # thing. I don't have a mnual of markdown on me. So please make it
            # more supported. I guess. I might forget things I rarely use.
            
            # Links are made with [stuff you click on](https://example.com)
            # but similar to it. Images are done ![Tooltip](Image.png)
            # and even weirder you can put one into the other. Like
            # [![Tooltip](Image.png)](https://example.com)
            # Which going to give you a clickable image.
            
            # For this version what we are going to do is next. 
            # If we got [![ then it's a clickable image
            # If we got ![ then it's just image
            # and if we got [ then it's a link.
        
            if part.endswith("[!["):
                
                # IMAGE LINK
                newtree.append([block[0], part[:-3]])

                tooltip = ""
                imageurl = ""
                url = ""
                t = False
                iu = False
                skip = n
                for le in block[-1][n:]: # For letters in the rest of text

                    skip = skip + 1

                    if le == "]":
                        t = True
                    elif le == ")" and t and not iu:
                        iu = True
                    elif le == ")" and t and iu:
                        break
                    elif not t:
                        tooltip = tooltip +le
                    elif t and not iu:
                        imageurl = imageurl + le
                    else:
                        url = url+le

                tooltip = tooltip[tooltip.find("[")+1:]
                imageurl = imageurl[imageurl.find("(")+1:]
                url = url[url.find("(")+1:]
                
                apnd = ["image_link", tooltip, imageurl, url]
                
                newtree.append(apnd)

                part = ""
                
            
            elif part.endswith("!["):
                
                # IMAGE

                newtree.append([block[0], part[:-2]])
                
                tooltip = ""
                url = ""
                t = False
                skip = n
                for le in block[-1][n:]: # For letters in the rest of text

                    skip = skip + 1

                    if le == "]":
                        t = True
                    elif le == ")" and t:
                        break
                    elif not t:
                        tooltip = tooltip +le
                    else:
                        url = url+le

                tooltip = tooltip[tooltip.find("[")+1:]
                url = url[url.find("(")+1:]

                apnd = ["image", tooltip, url]
                newtree.append(apnd)
                
                part = ""
                
            
            elif part.endswith("[") and not block[-1][n:].startswith('[!['):
                
                # LINK
                newtree.append([block[0], part[:-1]])
                
                
                tooltip = ""
                url = ""
                t = False
                skip = n
                for le in block[-1][n:]: # For letters in the rest of text

                    skip = skip + 1

                    if le == "]":
                        t = True
                    elif le == ")" and t:
                        break
                    elif not t:
                        tooltip = tooltip +le
                    else:
                        url = url+le

                tooltip = tooltip[tooltip.find("[")+1:]
                url = url[url.find("(")+1:]
                    
                apnd = ["link", tooltip, url]
                newtree.append(apnd)
                
                part = ""
                
                
                
            # Now I want to deal with `, *, ** and ***. If you want to help me you
            # can implement other types. Such as _, __, ___ and so on. Markdown is
            # a very rich language. I'm going to use the cut down version I see other
            # people use.

            # BTW this is the time. Feb 28. When I switched from Gedit to GNU Emacs.
            # Interesting feeling using this programm. I kind a love it even tho
            # so many stuff in not intuitive. Like saving is not Ctrl - S but
            # Ctrl - X -> Ctrl - S.

            # Things like Alt-; to comment multiple lines at ones is HUGE. Also it
            # was built by programmers for programmers. So it's a very good tool.

            elif part.endswith("**") and not block[-1][n+2:].startswith('*'):
                
                # DOUBLE **
                
                newtree.append([block[0], part[:-2]])

                if block[0] == "text":
                    block[0] = "text_b"
                else:
                    block[0] = "text"

                part = ""
            
            elif part.endswith("*") and not block[-1][n+1:].startswith('*'):
                
                # SINGLE *
                
                newtree.append([block[0], part[:-1]])

                if block[0] == "text":
                    block[0] = "text_i"
                else:
                    block[0] = "text"

                part = ""


            elif part.endswith("`"):
                
                # SINGLE `
                
                newtree.append([block[0], part[:-1]])

                if block[0] == "text":
                    block[0] = "text_c"
                else:
                    block[0] = "text"

                part = ""
            
        newtree.append([block[0], part])
        
        
    
    tree = newtree
        
    return(tree)

def search_convert(s):

    # This function convers a chapter name into a link
    # such links are use in notabug.org to link to chapters
    # for example example.com/file.md#chapter-name
    # With this url it will load the example.com/file.md and
    # then skip to the "Chapter Name" chapter.

    # This function transforms "Chapter Name" into "chapter-name"
    
    l = " ./\|[]{}()?!@#$%^&*`~:;'\"=,<>"
    s = s.lower().replace(" ","-")
    r = ""
    for i in s:
        if i not in l:
            r = r + i
    return r

def draw(outlayer, win, name, x, y, width, height):
    
    # Now you maybe woundering where is the filname to read from. Well. We are 
    # making it now.
    
    if "mdfs" not in win.current:
        win.current["mdfs"] = {}
        win.current["mdfs"]["failsafe"] = ""
    
    if name not in win.current["mdfs"]:
        win.current["mdfs"][name] = ""

    
    filename = win.current["mdfs"][name]
    filename = filename.replace("../", "")
    win.current["mdfs"][name] = filename

    # The # sing usually calls for search with in the text.

    if "#" in filename and not "@" in filename:
        filename, search = filename.split("#")
        win.current["mdfs"][name] = filename
    else:
        search = ""
     
    # First we don't want to waste resources to parse the file on each frame
    # so let's load it ones.
    
    if "mds" not in win.current:
        win.current["mds"] = {}
    
    if filename not in win.current["mds"]:
        win.current["mds"][filename] = Open(win, filename, name)
    
    md = win.current["mds"][filename]
    
    # This peace of code outputs the parsed object into terminal for reading.
    
    # for i in md: 
    #    if type(i) == str:
    #        print("'"+i+"' ,")
    #    else:
    #        print(i, ",")
            
    
    # Background
    UI_color.set(outlayer, win, "node_background")
    UI_elements.roundrect(outlayer, win,
        x,
        y,
        width,
        height,
        10)
    outlayer.fill()
    
    # The name of the file first. I think it's gonna make sense to make it in 
    # an entry. So people could insert any filename, or link in future.
    
    try:
        UI_elements.text(outlayer, win, "markdown_name",
            x+10,
            y+5,
            int(width/2)-120,
            40,
            set_text=filename,
            fill=False)
        
        if win.text["markdown_name"]["text"] != filename \
        and win.textactive != "markdown_name":
            win.text["markdown_name"]["text"] = filename

        # Let me make it user editable as well. Because I'm a nerd
        # and I want to see how it handles various problems.

        elif win.text["markdown_name"]["text"] != filename:

            def do():
                win.current["mdfs"]["failsafe"] = filename
                win.current["mdfs"][name] = win.text["markdown_name"]["text"]
                
            UI_elements.roundrect(outlayer, win, 
                x+int(width/2)-150,
                y+5,
                40,
                40,
                10,
                button=do,
                icon="ok",
                tip=talk.text("checked"))

            
    except:
        pass

    # Users should be able to chose whether automatic downloading of stuff
    # will be done by the software. This is why I want to add this setting
    # here too. And not barried somewhere in the settings.
    if width > 350:
        download_ok = "unchecked"
        if win.settings["auto_download_images"]:
            download_ok = "checked"

        def do():
            win.settings["auto_download_images"] = not win.settings["auto_download_images"]
            settings.write("auto_download_images", win.settings["auto_download_images"])

        UI_elements.roundrect(outlayer, win, 
            x+int(width/2)-100,
            y+5,
            int(width/2)-150,
            40,
            10,
            button=do,
            icon=download_ok,
            tip=talk.text("auto_download_images"))

        UI_color.set(outlayer, win, "text_normal")
        outlayer.set_font_size(20)
        outlayer.move_to(x+int(width/2)-50,
                         y+30)
        outlayer.show_text(talk.text("auto_download_images")[:int((int(width/2)-150)/9)])

    # I want to include 2 button to the top raw besides the adress bar.
    # A button to open the file in the standard application. ( Edit )
    # A button to open the NoABug repository version ( NotABug )
    if width > 150 and not filename.startswith("lbry://"):
        # EDIT

        def do():
            oscalls.Open(filename)

        UI_elements.roundrect(outlayer, win, 
            x+int(width)-100,
            y+5,
            40,
            40,
            10,
            button=do,
            icon="edit",
            tip=talk.text("edit_markdown"))

        # NOTABUG

        def do():
            oscalls.Open("https://notabug.org/jyamihud/VCStudio/src/master/"+filename)

        UI_elements.roundrect(outlayer, win, 
            x+int(width)-50,
            y+5,
            40,
            40,
            10,
            button=do,
            icon="notabug",
            tip=talk.text("notabug_markdown"))

    elif width > 100:

        # ODYSEE ( LBRY ) open in browser

        def do():
            oscalls.Open(filename.replace("lbry://", "https://odysee.com/"))

        UI_elements.roundrect(outlayer, win, 
            x+int(width)-50,
            y+5,
            40,
            40,
            10,
            button=do,
            icon="lbry",
            tip="Odysee.com (LBRY)")
        
    # Now let's draw the bastard. We are going to do it the same way as in the
    # script writer. But rather simplified. For example we are not making an
    # editor. But only a reader. So we don't need the selection. And we don't
    # need to calculate every letter preciselly. With something like codes
    # I can do that every ` object will be drawn in a text entry object. Why
    # not.
    
    # I need to make a new Layer because we are going to clip it for the text.
    
    textsurface = cairo.ImageSurface(cairo.FORMAT_ARGB32, int(width), int(height))
    layer = cairo.Context(textsurface)
    layer.select_font_face("Monospace", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
    layer_i = cairo.Context(textsurface)
    layer_i.select_font_face("Monospace", cairo.FONT_SLANT_ITALIC, cairo.FONT_WEIGHT_NORMAL)
    layer_b = cairo.Context(textsurface)
    layer_b.select_font_face("Monospace", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD)
    layer_bi = cairo.Context(textsurface)
    layer_bi.select_font_face("Monospace", cairo.FONT_SLANT_ITALIC, cairo.FONT_WEIGHT_BOLD)
    
    
    
    UI_elements.roundrect(layer, win, 0,50,width, height-50, 10,fill=False)
    layer.clip()
    UI_elements.roundrect(layer_b, win, 0,50,width, height-50, 10,fill=False)
    layer_b.clip()
    UI_elements.roundrect(layer_bi, win, 0,50,width, height-50, 10,fill=False)
    layer_bi.clip()
    UI_elements.roundrect(layer_i, win, 0,50,width, height-50, 10,fill=False)
    layer_i.clip()
    
    ############################################################################
    #                    HERE WE DRAWING TEXT TO THE SCREEN                    #
    ############################################################################
    
    if "markdown" not in win.scroll:
        win.scroll["markdown"] = 0
    
    current_Y = 70
    tyleX = 10
    newX = 10
    newY = 0

    
    for block in md:
        
        # THE # HEADERS
        
        if type(block[0]) == int:

            current_Y = current_Y + newY + 100
            
            UI_color.set(layer_b, win, "text_normal")
            layer_b.set_font_size(30-(block[0]*4))
            layer_b.move_to(
                10,
                current_Y + win.scroll["markdown"]
                )
            layer_b.show_text(block[1].replace("\n", "").replace("#", " "))
            
            current_Y = current_Y + 40

            if search and search in search_convert(block[1].replace("\n", "").replace("#", "")):
                win.scroll["markdown"] = 0 - current_Y + 140
                search = ""
            
            newX = 10
            newY = 0
        
        # IMAGES

        # This going to be hard. I have an interesting idea about it.
        # 1.) Make the images whos links are in the internet loadable.
        #     This will require some clever thinking. Because not all
        #     users want to automatically download images from a source
        #     that they don't trust. I'm hosting most of the images
        #     at the moment on NotABug.org with the project's code.
        #     But. That I trust it. Doesn't mean everybody trust it
        #     or should trust it. So Downloading of images should be
        #     optional. We can make a button to download a given image
        #     and a setting in the settings to download them automatically.
        #
        #     Now thinking about it. The Update system should use something
        #     similar.
        #
        # 2.) Warping of text around the image. This is something original
        #     markdown not really supports. On NotABug the images in the text
        #     look a bit ugly because they stretch the line height.
        #     I propose using a kind of warp around system. Let me demonstrate.

        #     ###############  This is a sample text about the Image.png. That
        #     #             #  is going to warp around the image like so.
        #     #  Image.png  #  More text is needed to show the extent of this
        #     #             #  effect. So I'm going to ramble about something.
        #     #             #  Hello World! Are you a true hacker? I hope you
        #     ###############  are. And not a cracker. Now see what's going to
        #     happen when the image is ended. The next line is written under
        #     the image. Which is a cool look. Now ...

        #     I have no idea what to do if the image is going to be rendered in
        #     the middle of the paragraph. Maybe the image in the middle should
        #     act like in a normal implementation. And only at the start as
        #     what I showed you now. 

        elif "image" in block[0]:
            

            
            
            # ICONS

            # Sometimes I link Icons from OldSchool theme to the text. They
            # look good on a white background in the NotABug.org page.
            # But. Since they are icons that might have different themes for
            # the users let's make them theme respecting.

            if "settings/themes/" in block[2] and "/icons/" in block[2]:
                iconname = block[2][block[2].rfind('/')+1:]
                block[2] = "settings/themes/"+win.settings["Theme"]+"/icons/"+iconname

                UI_elements. image(layer, win, "settings/themes/"\
                        +win.settings["Theme"]+"/icons/"+iconname,
                                   tyleX,
                                   current_Y + win.scroll["markdown"]-30)
                tyleX = tyleX + 40

            # OTHER IMAGES

            # I think the handling of the images loading should be done in the
            # UI_elements.py file. So I could easy reimplement this feature
            # else where.
            
            else:

                if newY:
                    current_Y = current_Y + newY + 40
                    tyleX = 10
                newX = 10
                newY = 0
                
                UI_elements. image(layer, win, block[2],
                    tyleX,
                    current_Y + win.scroll["markdown"]-15,
                                   cell="markdown",offset=[x,y],width=width-40,fit="fit_width")
                try:
                    imH = win.images["markdown"][block[2]]['image'].get_height()
                    imW = win.images["markdown"][block[2]]['image'].get_width()
                except:
                    imH = 40
                    imW = 40


                bx = tyleX
                by = current_Y
                
                if imW < width/2:
                    tyleX = tyleX + imW

                    newX = imW + 40
                    newY = imH - 20
                else:
                    tyleX = 10
                    current_Y = current_Y + imH

            # LINKED IMAGES

            if "link" in block[0]:

                # If the image is linked. We are going to separate it in 2 categoies.
                # If automatic downloading is on. There is no difference. Else. There
                # will be a difference. Since the image from the Internet going to be
                # a button to download it. We need to offset the link button. SO.

                def do():
                    if block[3].endswith(".md"):
                        win.current["mdfs"]["failsafe"] = filename
                        win.current["mdfs"][name] = block[3]
                        win.current["current_help_selected"] = ""
                        win.scroll["markdown"] = 0
                    else:
                        oscalls.Open(block[3])

                try:
                    downloadbutton = win.images["markdown"][block[2]]["image"] == "download_button"
                except:
                    downloadbutton = False

                    
                if not win.settings["auto_download_images"]\
                and block[2].startswith("http")\
                and downloadbutton:

                    # Here goes the offsetted link.
                    
                    UI_elements.roundrect(layer, win,  tyleX,
                    current_Y + win.scroll["markdown"]-15,40,40,10,
                          icon="internet",
                          button=do,
                          offset=[x,y],
                          tip=block[3])
                    
                    tyleX = tyleX + 60

                else:

                    # Full on image
                    
                    UI_elements.roundrect(layer, win,  bx,
                        by + win.scroll["markdown"]-15,imW, imH,10,
                        button=do,
                        offset=[x,y],
                        tip=block[3],
                        fill=False)
                    layer.stroke()
    
        # TEXT
        
        elif block[0] in ["text", "text_i", "text_b", "text_ib", "text_c", "link"]:
            for word in block[1].split(" "):
                
                if tyleX + len(word)*12+12 > width :
                    tyleX = newX
                    newY = max(0, newY-30)
                    if newY == 0:
                        newX = 10
                    current_Y = current_Y + 30

                # Any type of Text. Whether it's Normal, Bold or Italic gonna
                # have the same color.
                
                if "text" in block[0]:
                    UI_color.set(layer, win, "text_normal")
                    UI_color.set(layer_i, win, "text_normal")
                    UI_color.set(layer_b, win, "text_normal")
                    UI_color.set(layer_bi, win, "text_normal")

                # Unless it's a link. Then I have a special color for it in the
                # theme. I tried reusing pre-existing. Non of them works across
                # multiple themes.
                    
                else:
                    

                    # Here I gonna introduce the logic of the links. Because
                    # I'm lazy.

                    if "markdown_mouse_link" not in win.current:
                        win.current["markdown_mouse_link"] =  ""

                    if win.current["mx"] in range(int(x+tyleX-6), int(x+tyleX-6+len(word)*12+12))\
                    and win.current["my"] in range(int(y+current_Y + win.scroll["markdown"]-20),
                                                   int(y+current_Y + win.scroll["markdown"]+5)):
                        win.current["markdown_mouse_link"] = block[2]

                        UI_elements.tooltip(win,block[2])
                        
                        # AHh... I'll do a clicker here.
                        if not win.current["LMB"] and win.previous["LMB"]:

                            if block[2].startswith("#"):
                                win.current["mdfs"][name] = win.current["mdfs"][name] + block[2]
                                win.current["current_help_selected"] = ""
                            else:
                                win.current["mdfs"]["failsafe"] = filename
                                win.current["mdfs"][name] = block[2]
                                win.current["current_help_selected"] = ""
                                win.scroll["markdown"] = 0
                                

                    elif win.current["mx"] not in range(win.previous["mx"]-5, win.previous["mx"]+5):
                        win.current["markdown_mouse_link"] =  ""


                        
                    # If mouse hovering over a link. Draw a line under the link.
                        
                    if win.current["markdown_mouse_link"] == block[2]:
                        UI_color.set(layer, win, "text_normal")
                        UI_elements.roundrect(layer, win,
                                              tyleX-6,
                                              current_Y + win.scroll["markdown"],
                                              len(word)*12+12,
                                              4,
                                              2)    

                    UI_color.set(layer, win, "text_link")

                    
                # Italic text
                
                if "_i" in block[0]:
                    layer_i.set_font_size(20)
                    layer_i.move_to(
                        tyleX,
                        current_Y + win.scroll["markdown"]
                        )
                    layer_i.show_text(word.replace("\n", ""))

                # Bold text
                
                elif "_b" in block[0]:
                    layer_b.set_font_size(20)
                    layer_b.move_to(
                        tyleX,
                        current_Y + win.scroll["markdown"]
                        )
                    layer_b.show_text(word.replace("\n", ""))

                # Any other text
                
                else:    

                    if "_c" in block[0]:

                        UI_color.set(layer, win, "node_background")
                        UI_elements.roundrect(layer, win,
                            tyleX-6,
                            current_Y + win.scroll["markdown"]-20,
                            len(word)*12+12,
                            25,
                            5)
                        UI_color.set(layer, win, "text_normal")

                    layer.set_font_size(20)
                    layer.move_to(
                        tyleX,
                        current_Y + win.scroll["markdown"]
                        )
                    layer.show_text(word.replace("\n", ""))

                # Moving of to the next word.
                    
                if "\n" in word:
                    tyleX = newX
                    newY = max(0, newY-30)
                    if newY == 0:
                        newX = 10
                    current_Y = current_Y + 30
                else:
                    
                    tyleX = tyleX + len(word)*12+12
        
                
            
            
        
    ############################################################################

    # #########################################

    # BEFORE WE GONNA END THE DRAWING OF THE
    # MARKDOWN. IF IT'S UPDATE INFORMATION WE
    # NEED TO GET THE USER A LIST OF FILES WITH
    # 2 BUTTONS. TO OPEN, TO VIEW IN NOTABUG
    # AND TO SEE HISTORY.

    # #########################################

    if "update_markdown_files" in win.current:
        files = win.current["update_markdown_files"]

        tyleX = 50

        for file in files:

            if int(current_Y + win.scroll["markdown"] + 100) in range(0-100, win.current["h"]):

                # Making the layer
                nodesurface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 170, 250)
                node = cairo.Context(nodesurface)
                node.select_font_face("Monospace", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)


                UI_elements.roundrect(node, win, 
                    0,
                    0,
                    170,
                    250,
                    10,
                    fill=False)

                node.clip()

                # Background
                UI_color.set(node, win, "dark_overdrop")
                node.rectangle(0,0,170, 250)
                node.fill()

                # Banner
                UI_color.set(node, win, "node_asset") 
                node.rectangle(0,0,170, 20)
                node.fill()

                # Outputting the layer
                layer.set_source_surface(nodesurface, 
                        tyleX-10,
                        current_Y + win.scroll["markdown"] + 120)
                layer.paint()

                # ICON
                UI_elements.image(layer, win, file, 
                            tyleX,
                            current_Y + win.scroll["markdown"] + 140, 
                            150,
                            150,
                            cell="update_previews")
                # NAME
                UI_color.set(layer, win, "text_normal")
                layer.set_font_size(12)
                layer.move_to(tyleX,
                    current_Y + win.scroll["markdown"] + 135)
                layer.show_text(file[file.rfind("/")+1:][:22]) 

                # BUTTON
                def do():
                    win.current["mdfs"]["failsafe"] = filename
                    win.current["mdfs"][name] = file
                    win.current["update_markdown_files"] = []
                layer.set_line_width(4)    
                UI_elements.roundrect(layer, win, 
                    tyleX-10,
                    current_Y + win.scroll["markdown"] + 120,
                    170,
                    200,
                    10,
                    button=do,
                    tip=file,
                    fill=False,
                    offset=[x,y])

                layer.stroke()
                layer.set_line_width(2)

                # Two buttons for notabug version and history of the file

                ntbg = "https://notabug.org/jyamihud/VCStudio/src/master/"
                
                def do():
                    oscalls.Open(ntbg+file)
                UI_elements.roundrect(layer, win, 
                    tyleX+35,
                    current_Y + win.scroll["markdown"] + 120+205,
                    40,
                    40,
                    10,
                    button=do,
                    tip=ntbg+file,
                    icon="notabug",
                    offset=[x,y])

                ntbg = "https://notabug.org/jyamihud/VCStudio/commits/master/"
                
                def do():
                    oscalls.Open(ntbg+file)
                UI_elements.roundrect(layer, win, 
                    tyleX+75,
                    current_Y + win.scroll["markdown"] + 120+205,
                    40,
                    40,
                    10,
                    button=do,
                    tip=ntbg+file,
                    icon="history",
                    offset=[x,y])
                
            tyleX = tyleX +  200

            if tyleX > width-210:
                tyleX = 50

                current_Y = current_Y + 270

        current_Y = current_Y + 400
            
    # Scroll
    UI_elements.scroll_area(outlayer, win, "markdown", 
        x+0,
        y+0,
        width+30, 
        height-0,
        current_Y,
        bar=True,
        mmb=True,
        bar_always=True)
    
    
    # Outputting the layer
    outlayer.set_source_surface(textsurface, x, y)
    outlayer.paint()