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paper-pi/app/Http/Controllers/Main.php

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PHP
Executable File

<?php
/**
* Created by PhpStorm.
* User: k
* Date: 10.02.2017
* Time: 20:10
*/
namespace App\Http\Controllers;
set_time_limit(-1);
use App\Paper\Airly;
use App\Paper\Paper;
use Illuminate\Support\Facades\DB;
use Mike42\Escpos\PrintConnectors\FilePrintConnector;
use Mike42\Escpos\Printer;
use Intervention\Image\ImageManagerStatic as Image;
use Mike42\Escpos\EscposImage;
use Illuminate\Http\Request;
class Main extends Controller
{
private $paper = null;
const TEMPLATE = 'template';
const NOTE = 'note';
public function __construct()
{
$this->paper = new Paper();
}
/**
* post::/printImage
* @param Request $request
* @return \Illuminate\Http\RedirectResponse
* @throws \Exception
*/
public function imagePrint(Request $request)
{
if ($request->hasFile('photo')) {
$file = $request->photo;
} else {
$file = $request->input('url');
}
$image = Image::make($file);
if ($image->width() > $image->height()) {
$image->rotate(90);
}
$image = $image->greyscale()
->resize(370, null, function ($constraint) {
$constraint->aspectRatio();
$constraint->upsize();
});
$fileName = storage_path('temp.png');
$image->save($fileName, 100);
$img = imagecreatefrompng($fileName);
// imagefilter($img, IMG_FILTER_GRAYSCALE);
$width = imagesx($img);
$height = imagesy($img);
$img_arr = array();
// Parse image (can be combined with dither stage, but combining them is slower.)
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$img_arr[$x][$y] = imagecolorat($img, $x, $y);
}
}
// make a b/w output image.
$output = imagecreate($width, $height);
$black = imagecolorallocate($output, 0, 0, 0); //background color.
$white = imagecolorallocate($output, 0xff, 0xff, 0xff);
for ($y = 1; $y < $height - 3; $y++) {
for ($x = 1; $x < $width - 3; $x++) {
$old = $img_arr[$x][$y];
if ($old > 0xffffff * .5) { // This is the b/w threshold. Currently @ halfway between white and black.
$new = 0xffffff;
imagesetpixel($output, $x, $y, $white); // Only setting white pixels, because the image is already black.
} else {
$new = 0x000000;
}
$quant_error = $old - $new;
$error_diffusion = (1 / 8) * $quant_error; //I can do this because this dither uses 1 value for the applied error diffusion.
//dithering here.
$img_arr[$x + 1][$y] += $error_diffusion;
$img_arr[$x + 2][$y] += $error_diffusion;
$img_arr[$x - 1][$y + 1] += $error_diffusion;
$img_arr[$x][$y + 1] += $error_diffusion;
$img_arr[$x + 1][$y + 1] += $error_diffusion;
$img_arr[$x][$y + 2] += $error_diffusion;
}
}
// plop out a png of the dithered image.
// Header("Content-type: image/png");
imagepng($output, $fileName, 9); //to print to screen
$img = EscposImage::load($fileName, false);
$this->paper->getPrinter()->bitImage($img);
$this->paper->getPrinter()->feed(4);
return back();
}
/**
* get:/
* @param Request $request
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function listView(Request $request)
{
$notes = DB::select('SELECT * FROM note WHERE type = "note" ORDER BY updated_at DESC');
$templates = DB::select('SELECT * FROM note WHERE type = "template" ORDER BY updated_at DESC');
return view('list', [
'notes' => $notes,
'templates' => $templates,
'title' => $request->old('title'),
'text' => $request->old('text'),
'icon_selected' => $request->old('icon'),
'icons' => $this->paper->getIcons()
]);
}
/**
* get:/filte/{$filter?}
* @param Request $request
* @param null $filter
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function filterView(Request $request, $filter = 'empty')
{
$notes = DB::select('SELECT *, CASE WHEN icon IS NULL
THEN \'empty\'
ELSE icon
END AS new_icon FROM note WHERE type = "note" AND new_icon = :icon ORDER BY updated_at DESC', ['icon' => $filter]);
$templates = DB::select('SELECT *, CASE WHEN icon IS NULL
THEN \'empty\'
ELSE icon
END AS new_icon FROM note WHERE type = "template" AND new_icon = :icon ORDER BY updated_at DESC', ['icon' => $filter]);
return view('list', [
'filter' => $filter,
'notes' => $notes,
'templates' => $templates,
'title' => $request->old('title'),
'text' => $request->old('text'),
'icon_selected' => $request->old('icon'),
'icons' => $this->paper->getIcons()
]);
}
/**
* post::/print/{id}
* @param Request $request
* @param $id
* @return \Illuminate\Http\RedirectResponse
*/
public function printText(Request $request, $id)
{
$note = $this->printNote($id);
$request->session()->flash('print_status', 'Wydrukowano notatkę: ' . $note->topic . '!');
return back();
}
public function printNote($noteId)
{
$note = DB::table('note')->where('id', $noteId)->first();
$this->paper->sendPrint($note->topic, $note->text, $note->icon);
return $note;
}
public function noteLast()
{
$note = DB::table('note')->orderBy('id', 'desc')->first();
$this->printNote($note->id);
}
private function templateReplace($input)
{
return str_replace(['[d]', '[m]', '[y]', '[h]', '[i]', '[s]'],
[date('d'), date('m'), date('Y'), date('H'), date('i'), date('s')],
$input);
}
/**
* get::/edit/{id}/{slug}
* post::/edit/{id}/{slug}
* @param Request $request
* @param $id
* @param $slug
* @return \Illuminate\Contracts\View\Factory|\Illuminate\Http\RedirectResponse|\Illuminate\View\View
*/
public function edit(Request $request, $id, $slug)
{
$note = DB::table('note')->where('id', $id)->first();
if ($request->isMethod('post')) {
if ($request->exists('save') ||
$request->exists('save_template')) {
if ($note->type == $this::TEMPLATE) {
$id = DB::table('note')
->insertGetId([
'topic' => $this->templateReplace($request->input('title')),
'topic_slug' => str_slug($request->input('title'), '_'),
'text' => $this->templateReplace($request->input('text')),
'icon' => $request->input('icon'),
'type' => self::NOTE,
'created_at' => time(),
'updated_at' => time()
]);
$note = DB::table('note')->where('id', $id)->first();
} else {
DB::table('note')
->where('id', $note->id)
->update([
'topic' => $request->input('title'),
'topic_slug' => str_slug($request->input('title'), '_'),
'text' => $request->input('text'),
'icon' => $request->input('icon'),
'updated_at' => time(),
]);
}
} elseif ($request->exists('delete')) {
DB::table('note')
->where('id', $note->id)
->delete();
return redirect()->route('list');
} elseif ($request->exists('print')) {
$this->paper->sendPrint($request->input('title'), $request->input('text'), $request->input('icon'));
}
return redirect()->route('edit', ['id' => $note->id, 'slug' => $note->topic_slug]);
} else {
return view('edit', [
'title' => $note->topic,
'text' => $note->text,
'icon_selected' => $note->icon,
'type' => $note->type,
'id' => $note->id,
'icons' => $this->paper->getIcons(),
'topic_slug' => $note->topic_slug,
]);
}
}
/**
* post::/
* @param Request $request
* @return $this|\Illuminate\Http\RedirectResponse
*/
public function main(Request $request)
{
if ($request->exists('save')) {
$id = DB::table('note')
->insertGetId([
'topic' => $request->input('title'),
'topic_slug' => str_slug($request->input('title'), '_'),
'text' => $request->input('text'),
'icon' => $request->input('icon'),
'type' => self::NOTE,
'created_at' => time(),
'updated_at' => time()
]);
$note = DB::table('note')->where('id', $id)->first();
return redirect()->route('edit', ['id' => $note->id, 'slug' => $note->topic_slug]);
} elseif ($request->exists('save_template')) {
$id = DB::table('note')
->insertGetId([
'topic' => $request->input('title'),
'topic_slug' => str_slug($request->input('title'), '_'),
'text' => $request->input('text'),
'icon' => $request->input('icon'),
'type' => self::TEMPLATE,
'created_at' => time(),
'updated_at' => time()
]);
$note = DB::table('note')->where('id', $id)->first();
return redirect()->route('edit', ['id' => $note->id, 'slug' => $note->topic_slug]);
} else {
$this->paper->sendPrint($request->input('title'), $request->input('text'), $request->input('icon'));
$request->session()->flash('print_status', 'Wydrukowano szybką notatkę: ' . (strlen($request->input('title')) ? $request->input('title') : substr($request->input('text'), 0, 20)) . '!');
return back()->withInput();
}
}
}