S13-Words-for-the-Future-notebooks/ASCII-canvas-to-PDF.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# ASCII Canvas"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "(using Reportlab to export it as a PDF)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "width = 75\n",
    "height = 65"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "multipage = False"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "# Simple fill-up of a page, to set the reach of our canvas\n",
    "lines = [] # All the lines will be stored here\n",
    "\n",
    "for linenumber in range(height):\n",
    "    line = 'x' * width\n",
    "    lines.append(line)\n",
    "\n",
    "print('\\n'.join(lines))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "# Another way to fill-up the page\n",
    "import random \n",
    "\n",
    "lines = []\n",
    "\n",
    "txt = open('txt/language.txt', 'r').read()\n",
    "words = txt.split()\n",
    "\n",
    "for linenumber in range(height):\n",
    "    word = random.choice(words)\n",
    "    length_of_word = len(word)\n",
    "    nr_of_words_fit_in_line = width / length_of_word\n",
    "    line = word * int(nr_of_words_fit_in_line)\n",
    "    lines.append(line)\n",
    "    \n",
    "print('\\n'.join(lines))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": true
   },
   "outputs": [],
   "source": [
    "# Same as above + a \"switch\" to make multipaged PDFs\n",
    "import random \n",
    "\n",
    "multipage = True\n",
    "number_of_pages = 100\n",
    "\n",
    "lines = []\n",
    "pages = []\n",
    "\n",
    "txt = open('txt/language.txt', 'r').read()\n",
    "words = txt.split()\n",
    "\n",
    "for page in range(number_of_pages):\n",
    "    \n",
    "    for linenumber in range(height):\n",
    "        word = random.choice(words)\n",
    "        length_of_word = len(word)\n",
    "        nr_of_words_fit_in_line = width / length_of_word\n",
    "        line = word * int(nr_of_words_fit_in_line)\n",
    "        lines.append(line)\n",
    "        \n",
    "    # Add a page\n",
    "    pages.append(lines)\n",
    "    lines = []\n",
    "\n",
    "for page in pages:\n",
    "    print('\\n'.join(page))\n",
    "    print('-' * width)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Exporting with Reportlab"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from reportlab.pdfgen.canvas import Canvas\n",
    "from reportlab.lib.pagesizes import A4\n",
    "from reportlab.lib.units import mm\n",
    "\n",
    "pagewidth = 210*mm\n",
    "pageheight = 297*mm\n",
    "\n",
    "c = Canvas(\"ASCII-canvas-to-PDF.pdf\", pagesize=(pagewidth, pageheight), bottomup=0)\n",
    "c.setFont('Courier', 12)\n",
    "\n",
    "start_y = 10*mm # start position of the lines\n",
    "\n",
    "y = start_y\n",
    "lineheight = 4*mm\n",
    "\n",
    "if multipage == True:\n",
    "    for page in pages:\n",
    "        for line in page:\n",
    "            c.drawCentredString(pagewidth/2, y, line)\n",
    "            y += lineheight\n",
    "        c.showPage()\n",
    "        y = start_y\n",
    "else:\n",
    "    for line in lines:\n",
    "        c.drawCentredString(pagewidth/2, y, line)\n",
    "        y += lineheight\n",
    "    \n",
    "c.save()"
   ]
  }
 ],
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  "language_info": {
   "codemirror_mode": {
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