{"id":4311,"date":"2019-12-13T07:44:46","date_gmt":"2019-12-13T06:44:46","guid":{"rendered":"https:\/\/pythonprogramming.altervista.org\/?p=4311"},"modified":"2019-12-13T07:48:53","modified_gmt":"2019-12-13T06:48:53","slug":"create-a-presentation-with-python-presentations","status":"publish","type":"post","link":"https:\/\/pythonprogramming.altervista.org\/create-a-presentation-with-python-presentations\/","title":{"rendered":"Create a Presentation with Python-Presentations"},"content":{"rendered":"

Let’s take a look at my new app<\/strong> to make presentations<\/strong>. I made other scripts to create presentations, but this one uses PIL<\/strong> to make it, so I think it’s quite fun<\/strong>. It uses some code that I used to make covers<\/strong>, so I thought to change it to make a whole presentation<\/strong>, instead of a single cover. After we create the slides<\/strong> (images), we will join them into a pdf<\/strong> file that we can use to show it.<\/p>\n

What do you need<\/h2>\n

You will need the PIL<\/strong> module<\/strong> (that is very useful, so don’t waste your time and install it).<\/p>\n

You install it this way: go in the cmd<\/strong> (windows button<\/strong> + r and then type cmd and press enter):<\/p>\n

pip install pillow<\/strong><\/p>\n

Pillow<\/strong> is a fork of PIL and works well.<\/p>\n

The code to make the slides<\/h2>\n

This is the whole code to make the image slides. You insert the text like you can see in the last lines of code.<\/p>\n

from PIL import Image, ImageDraw, ImageFilter, ImageFont\r\nfrom random import randint, random, choice, randrange\r\n\r\ndef sfondo():\r\n    i = Image.new(\"RGB\", (1000,600), \"black\")\r\n    font = ImageFont.truetype(\"arial.ttf\", 4)\r\n    d = ImageDraw.Draw(i)\r\n    w,h = i.size\r\n    for x in range(0, w, 8):\r\n        for y in range(0, h, 8):\r\n            boolean = randint(0,9)\r\n            bool2 = int(random()*100)\r\n            ca, cb, cc = [randrange(100,255,10) for x in range(3)]\r\n            d.text((x,y), str(boolean), (ca,cb,cc,bool2), font=font) # left corner up (h=0);\r\n    i = i.filter(ImageFilter.SMOOTH)\r\n    return i\r\n#i.save(\"1929\\\\matrix2.png\")\r\n\r\n# ================= SECOND PART\r\n\r\ndef add_words():\r\n    num = 8\r\n    font = ImageFont.truetype(\"impact.ttf\", num)\r\n    d = ImageDraw.Draw(i)\r\n    w,h = i.size\r\n    for x in range(30, 100, num+50):\r\n        opacity = 100 + int(random()*255)\r\n        for y in range(0, h, num+16):\r\n            x = randint(50,600)\r\n            y = randint(150,500)\r\n            stringa = choice(\"\"\"Google\r\n    firebase\r\n    Python\r\n    \"\"\".splitlines())\r\n            opacity = randint(100,255)\r\n            num = randint(8,70)\r\n            ca, cb, cc = [randrange(100,255,10) for x in range(3)]\r\n            d.text((x,y), stringa, (ca,cb,cc,opacity), font=ImageFont.truetype(\"impact.ttf\", num))\r\n    #i = i.filter(ImageFilter.SMOOTH)\r\n    #i = i.filter(ImageFilter.CONTOUR)\r\n    i = i.filter(ImageFilter.SMOOTH)\r\n#add_words()\r\n\r\ndef random_color():\r\n    a,b,c = [randrange(100,255,10) for x in range(3)]\r\n    return a,b,c\r\n\r\ncounter = 0\r\ndef create_slide(testo):\r\n    global counter\r\n    i = sfondo()\r\n    counter +=1\r\n    opacity = randint(100,255)\r\n    num = randint(8,70)\r\n    d = ImageDraw.Draw(i)\r\n    testo = testo.split(\"\\n\")\r\n    lentesto = len(testo)\r\n    print(lentesto)\r\n    # Stampa il titolo di sicuro\r\n    a,b,c = random_color()\r\n    d.text((20,50), testo[0], (a,b,c,opacity), font=ImageFont.truetype(\"impact.ttf\", 54))\r\n    for n in range(lentesto):\r\n        if n==0:\r\n            pass\r\n        else:\r\n            a,b,c = random_color()\r\n            d.text((30,100+50*n), testo[n], (a,b,c,opacity), font=ImageFont.truetype(\"impact.ttf\", 50))\r\n    \r\n   \r\n    filename = f\"1929\\\\00{counter}.png\"\r\n    i.save(filename)\r\n    print(\"Salvato: \" + filename)\r\n    i.show()\r\n\r\n# Put your text with max 6 elements for line \/ each line is a slide\r\nslides = [\r\n# ======================  [1] ===  \" Le cause della crisi\"   \r\n\"\"\"La crisi del 1929\r\nLe cause:\r\n- crollo in borsa\r\n- panico clienti banche\r\n- debolezza sistema bancario\r\n- Debiti di guerra\r\n\"\"\",\r\n# ========================  [2]\r\n\"\"\"Dopo la Ia G.M.\r\n- Europa in crisi economica\r\n- Germania => ripagare => Francia, Ingh.\r\n- Inghilterra e Francia => debiti => USA\r\n- Germania => Francia e Ingh. => USA\r\n\"\"\"\r\n    \r\n         ]\r\nfor slide in slides:\r\n    print(slide)\r\n    create_slide(slide)\r\n<\/pre>\n
Now we make the pdf from the slides images<\/h2>\n
from fpdf import FPDF\r\nfrom PIL import Image\r\nimport glob\r\n\r\n\r\ndef makePdf(pdfFileName, listPages, dir=''):\r\n    \"Takes filename and number of pages abd creates pdf\"\r\n    if (dir):\r\n        dir += \"\/\"\r\n\r\n    cover = Image.open(dir + str(listPages[0]))\r\n    width, height = cover.size\r\n\r\n    pdf = FPDF(unit=\"pt\", format=[width, height])\r\n\r\n    for page in listPages:\r\n        pdf.add_page()\r\n        pdf.image(dir + str(page), 0, 0)\r\n\r\n    pdf.output(dir + pdfFileName + \".pdf\", \"F\")\r\n\r\n\r\nx = [f for f in glob.glob(\"1929\/*.png\")]\r\nprint(x)\r\ny = len(x)\r\n\r\n\r\nnomefile = input(\"Nomedelfile: \")\r\n\r\nmakePdf(nomefile, x)\r\n<\/pre>\n
The examples slides (2 slides)<\/h2>\n
This is the output. Think that the color will change randomly, so each time you create the images, they will be different until you freeze then into the pdf file.<\/p>\n
\"\"<\/a><\/p>\n
\"\"<\/a><\/p>\n
Python and Powerpoint<\/h4>\r\n\r\n\t