Support for displays with yellow color, new font and new demo 'harry'

README.md

@@ -23,6 +23,7 @@ With Get-Parameter 'scale' you adjust size of the text. Set 'debug' to true to g
 * `door_sign_csv` (list of people working in a room, information taken from a csv file or google spreadsheet)
 * `static_image` (showing a random image (scaled to display size) from server/contents/static_image. Just put your image here)
 * `weather_station` (showing demo temperature an weather with icons)
+* `harry` (simple shoutbox script - allows users to post their own message on the display!)
 
 ## Dependencies
 
@@ -35,4 +36,5 @@ This repository is part of article "Ausdauernde Infotafel" from German computer
 + add better examples with real data (like ical-calendar)
 
 ## New functions
-Support for red-black-white display!
++ Support for black-white-yellow (bwy) displays! (4.2bwy works, 7.5bwy is untested)
++ Support for red-black-white display!

esp32/doorsignEPD/doorsignEPD.ino

@@ -4,7 +4,7 @@
 
 #include <Basecamp.hpp>
 
-// Define your display type here: 2.9, 4.2 (bw and bwr) or 7.5 (bw or bwr) inches are supported:
+// Define your display type here: 2.9, 4.2 (bw, bwr or bwy) or 7.5 (bw, bwr or bwy) inches are supported:
 // Default: 4.2bwr
 #define DISPLAY_TYPE '4.2bwr'
 
@@ -42,34 +42,44 @@ long   sleepIntervalSetbyHeader = 0;                  //* Changed if the sleep i
 
 #if DISPLAY_TYPE == '1.5'
 #include <GxGDEP015OC1/GxGDEP015OC1.cpp>      // 1.54" b/w
-bool hasRed = false;
+bool hasColor = false;
 String displayType = "1.5";
 #endif
 #if DISPLAY_TYPE == '2.9'
 #include <GxGDEH029A1/GxGDEH029A1.cpp>      // 2.9" b/w
-bool hasRed = false;
+bool hasColor = false;
 String displayType = "2.9";
 #endif
 #if DISPLAY_TYPE == '4.2'
 #include <GxGDEW042T2/GxGDEW042T2.cpp>      // 4.2" b/w
-bool hasRed = false;
+bool hasColor = false;
 String displayType = "4.2";
 #endif
 #if DISPLAY_TYPE == '4.2bwr'
 #include <GxGDEW042Z15/GxGDEW042Z15.cpp>       // 4.2" b/w/r
-bool hasRed = true;
+bool hasColor = true;
 String displayType = "4.2bwr";
 #endif
+#if DISPLAY_TYPE == '4.2bwy'
+#include <GxGDEW042Z15/GxGDEW042Z15.cpp>       // 4.2" b/w/y
+bool hasColor = true;
+String displayType = "4.2bwy";
+#endif
 #if DISPLAY_TYPE == '7.5'
 #include <GxGDEW075T8/GxGDEW075T8.cpp>      // 7.5" b/w
-bool hasRed = false;
+bool hasColor = false;
 String displayType = "7.5";
 #endif
 #if DISPLAY_TYPE == '7.5bwr'
 #include <GxGDEW075Z09/GxGDEW075Z09.cpp>      // 7.5" b/w/r
-bool hasRed = true;
+bool hasColor = true;
 String displayType = "7.5bwr";
 #endif
+#if DISPLAY_TYPE == '7.5bwy'
+#include <GxGDEW075Z09/GxGDEW075Z09.cpp>      // 7.5" b/w/y
+bool hasColor = true;
+String displayType = "7.5bwy";
+#endif
 #include <GxIO/GxIO_SPI/GxIO_SPI.cpp>
 #include <GxIO/GxIO.cpp>
 #include <Fonts/FreeMonoBold9pt7b.h>
@@ -192,7 +202,7 @@ void drawPixels(char *data, size_t len, boolean start){
   Serial.println(String("Printing ") + len + " Bytes to the screen");
   for (size_t i=0; i<len; i++){
 
-    if (hasRed == true) {
+    if (hasColor == true) {
       for (int b = 7; b >= 0; b -= 2) {
         int bit = bitRead(data[i], b);
         int bit2 = bitRead(data[i], b - 1);
@@ -406,4 +416,4 @@ void loop() {
       Serial.println("Going to deep sleep now...");
       esp_deep_sleep_start();
     }
-};
+};

server/contents/door_sign.php

@@ -4,17 +4,27 @@
     const ROOM = 'Raum 267';
     const PERSONS = array("John Doe", "Jane Doe", "Otto Normalverbraucher");
 
+    // if display has a color, use it!
     $fontSize = $scale;
+    if(DISPLAYS[$displayType]['color'] == "red") {
+        $fontcolor = $red;
+    }
+    elseif (DISPLAYS[$displayType]['color'] == "yellow") {
+        $fontcolor = $yellow;
+    }
+    else {
+        $fontcolor = $black;
+    }
 
     $cursorY += $fontSize*1.5;
-    imagettftext($im, $fontSize, 0, 10, $cursorY, $red, $DEFAULT_FONT['bold'], ROOM);
+    imagettftext($im, $fontSize, 0, 10, $cursorY, $fontcolor, $DEFAULT_FONT['bold'], ROOM);
     $cursorY += 5;
     imageline ($im , 10 , $cursorY , $displayWidth - 20, $cursorY , $black );
 
-    $fontSize = 0.5*$scale;
+    $fontSize = 18;
     foreach(PERSONS as $person){
         $cursorY = $cursorY+$fontSize*1.5;
-    imagettftext($im, $fontSize, 0, 20, $cursorY, $black, $DEFAULT_FONT['regular'], $person );
+    imagettftext($im, $fontSize, 0, 20, $cursorY, -$black, $TERMINUS_FONT['regular'], $person );
     }
 
 ?>

server/contents/harry.php

@@ -0,0 +1,97 @@
+<?php
+/**
+ * Harrys Shoutbox - let harry hamster talk!
+ * the last 3 messages are shown to the public
+ * 
+ * Be sure, that the message file (./contents/harry/messages.txt)
+ * is writeable by the webserver, on you need to linux:
+ * 		sudo chown www-data messages.txt
+ * 		sudo chmod 774 messages.txt
+ * 
+ * New messages can be postet via harry-talk.php in main dir.
+ */
+
+/**
+ * show qr-code public on display?
+ *  
+ * you may add your qr-code (./contents/harry/qr.png) which points to 
+ * harry-talk.php on your server, so users can upload messages
+ * use https://www.the-qrcode-generator.com/ and download the png
+ * scaling from 200x200 to 67x67 is done by this script
+ */
+$showQr = true;
+
+// how long the display sleeps in seconds - to show user the next update time
+$deepSleepSeconds = 300;
+
+// for harry you need a big display
+if($displayHeight < 300 || $displayWidth < 400 ) {
+    echo "Bad news for you, you need a bigger display. :(";
+    exit;
+}
+
+// read message file
+$messages = file("./contents/harry/messages.txt");
+
+// place harry
+$harry = imagecreatefrompng("./contents/harry/harry-scared.png"); # choose your harry (see images in folder harry)
+imagecopy($im, $harry, 0, $displayHeight-imagesy($harry)-16, 0, 0, imagesx($harry), imagesy($harry));
+
+// place bubble, qr code and status
+imagerectangle($im, 80, 1, $displayWidth-2, $displayHeight-17, $black);
+imagerectangle($im, 81, 0, $displayWidth-3, $displayHeight-16, $black);
+
+imageline($im, 80, $displayHeight-90, 80, $displayHeight-100, $white);
+imageline($im, 81, $displayHeight-90, 81, $displayHeight-100, $white);
+imageline($im, 80, $displayHeight-90, 70, $displayHeight-100, $black);
+imageline($im, 79, $displayHeight-90, 69, $displayHeight-100, $black);
+imageline($im, 80, $displayHeight-100, 70, $displayHeight-100, $black);
+imageline($im, 79, $displayHeight-101, 69, $displayHeight-101, $black);
+
+if ($showQr == true) {
+	imagettftext($im, 9, 0, 10, 15, -$black, $TERMINUS_FONT['regular'], "Let Harry\n  speak:");
+	$qr = imagecreatefrompng("./contents/harry/qr.png");
+	$qr = imagescale($qr, 67, 67);
+	imagecopy($im, $qr, 5, 35, 0, 0, imagesx($qr), imagesy($qr));
+}
+
+imagefilledrectangle($im, 0, $displayHeight-13, $displayWidth, $displayHeight, $black);
+imagettftext($im, 9, 0, 1, $displayHeight-3, -$white, $TERMINUS_FONT['regular'], "updated:".date("d.m.y H:i",time())." | next update:".date("H:i",time()+$deepSleepSeconds)." | Harry © by Tim 2017");
+
+// write messages
+$i=0;
+foreach ($messages as $message){
+	$msg = explode(";", $message);
+	imagettftext($im, 18, 0, 85, 20+($i*98), -$black, $TERMINUS_FONT['bold'], fittext($msg[0], floor(($displayWidth-95)/12)));
+	imagettftext($im, 9, 0, $displayWidth-180, 83+($i*98), -$black, $TERMINUS_FONT['regular'], $msg[1]);
+	$i++;
+}
+
+/**
+ * functions
+ */
+
+// fit text into lines
+function fittext($text, $linelenght) {
+	$words = explode(' ', $text);
+	$output = "";
+	$line = "";
+	foreach ( $words as $word ) {
+		if (strlen($line) == 0) {
+            $line = $word;
+		}
+		else {
+			if (strlen( $line." ".$word ) > $linelenght) {
+				$output = $output.$line."\n";
+				$line = $word;
+			}
+			else {
+				$line = $line." ".$word;
+			}
+		}
+	}
+	$output = $output.$line;
+	return $output;
+}
+
+?>

server/contents/harry/messages.txt

@@ -0,0 +1,3 @@
+Only 52 characters? FAKE NEWS!!!;Trump - 11.03.2018 16:36
+This is a shoutbox, so shout!;Admin - 11.03.2018 16:32
+Look at my horse, my horse is amazing!;Sir! - 11.03.2018 16:30

server/fonts/terminus/COPYING

@@ -0,0 +1,97 @@
+Copyright (c) 2010 Dimitar Toshkov Zhekov,
+with Reserved Font Name "Terminus Font".
+
+Copyright (c) 2011 Tilman Blumenbach,
+with Reserved Font Name "Terminus (TTF)".
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

server/harry-talk.php

@@ -0,0 +1,71 @@
+<html lang="en-EN">
+<head>
+<title>Doorsign</title>
+</head>
+<body>
+     <h1>Let Harry speak!</h1>
+<?php 
+// list of bad words - 'feel like a little dictator' option
+// don't remove '/;/' from filtering list or evil things might 
+// happen to your dictatorship uhm... I mean csv file... ;)
+$badWords = array('/\bkim\b/i','/fuck/i','/;/'); 
+
+if (!isset($_GET['submess']) || !isset($_GET['name']))  {
+    print("<p>Write your message here and let Harry Hamster speak! You have 52 characters.</p>
+    <form action=\"harry-talk.php\">
+        your message:<br><textarea name=\"submess\" rows=\"3\" cols=\"24\" maxlength=\"52\" autofocus required wrap=\"soft\"></textarea><br>
+        your name: <input type=\"text\" name=\"name\" maxlength=\"8\" size=\"8\" required><br>
+        <input type=\"submit\" value=\"Let Harry speak!\">
+    </form>");
+}
+else {
+    $writeout = true;
+
+    // check for length
+    if(mb_strlen($_GET['submess']) > 52) {
+        print("<p>Message to long</p>");
+        $writeout = false;
+    } 
+    if (strlen($_GET['name']) > 8) {
+        print("<p>Name to long!</p>");
+        $writeout = false;
+    }
+
+    // check for to long words
+    $words = explode(' ', $_GET['submess']);
+    foreach ( $words as $word ) {
+        if (mb_strlen( $word ) > 13) {
+            print("<p>You are using to long words. The character per word limit is 13.</p>");
+            $writeout = false;
+        }
+    }
+
+    // if everything is fine write message to file
+    if ($writeout == true) {
+
+        // some filtering I'm sure I've been missing something...
+        $message = trim($_GET['submess']);
+        $name = $_GET['name'];
+        $message = preg_replace($badWords, "*", $message);
+        $message = str_replace(array("\r", "\n"), '', $message);
+        $name = preg_replace($badWords, "*", $name);
+        $name = str_replace(array("\r", "\n"), '', $name);
+
+        $messinput = file("./contents/harry/messages.txt");
+        $fp = fopen("./contents/harry/messages.txt", "w");
+        fwrite($fp, $message.";".$name." - ".date("d.m.Y H:i")."\n");
+        fwrite($fp, $messinput[0]);
+        fwrite($fp, $messinput[1]);
+        fclose($fp);
+        print("</p>Your message was accepted! Soon it will be shown on the display.</p>");
+    }
+    else {
+        print("<p><a href=\"harry-talk.php\">I try it again!</a></p>");
+    }
+}
+
+?>
+    <h2>display content right now:<h2>
+        <img src="index.php?debug=true&content=harry&display=4.2">
+    <p>
+</body>