From 0893b0a26886f64c0fa456a4cc69fef0992d7ad9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Hru=C5=A1ka?= <ondra@ondrovo.com>
Date: Sun, 12 Nov 2017 10:20:04 +0100
Subject: [PATCH] added update topic for doublelines

---
 js/term/screen.js        | 15 ++++++++++-----
 js/term/screen_parser.js | 30 +++++++++++++++++++++---------
 2 files changed, 31 insertions(+), 14 deletions(-)

diff --git a/js/term/screen.js b/js/term/screen.js
index 7985eec..ee3e448 100644
--- a/js/term/screen.js
+++ b/js/term/screen.js
@@ -93,11 +93,11 @@ module.exports = class TermScreen extends EventEmitter {
     this.screenLines = []
 
     // For testing TODO remove
-    this.screenLines[0] = 0b001
-    this.screenLines[1] = 0b010
-    this.screenLines[2] = 0b100
-    this.screenLines[3] = 0b011
-    this.screenLines[4] = 0b101
+    //   this.screenLines[0] = 0b001
+    //   this.screenLines[1] = 0b010
+    //   this.screenLines[2] = 0b100
+    //   this.screenLines[3] = 0b011
+    //   this.screenLines[4] = 0b101
 
     let selecting = false
 
@@ -500,6 +500,11 @@ module.exports = class TermScreen extends EventEmitter {
           this.emit('opts-update')
           break
 
+        case 'double-lines':
+          this.screenLines = update.lines
+          this.renderScreen('double-lines')
+          break
+
         case 'static-opts':
           this.layout.window.fontFamily = update.fontStack || null
           this.layout.window.fontSize = update.fontSize
diff --git a/js/term/screen_parser.js b/js/term/screen_parser.js
index c3a8546..9773dbc 100644
--- a/js/term/screen_parser.js
+++ b/js/term/screen_parser.js
@@ -27,15 +27,17 @@ function du (str) {
 }
 
 /* eslint-disable no-multi-spaces */
-const TOPIC_SCREEN_OPTS  = 'O'
-const TOPIC_STATIC_OPTS  = 'P'
-const TOPIC_CONTENT      = 'S'
-const TOPIC_TITLE        = 'T'
-const TOPIC_BUTTONS      = 'B'
-const TOPIC_CURSOR       = 'C'
-const TOPIC_INTERNAL     = 'D'
-const TOPIC_BELL         = '!'
-const TOPIC_BACKDROP     = 'W'
+//                                mnemonic
+const TOPIC_SCREEN_OPTS  = 'O' // O-ptions
+const TOPIC_STATIC_OPTS  = 'P' // P-arams
+const TOPIC_CONTENT      = 'S' // S-creen
+const TOPIC_TITLE        = 'T' // T-itle
+const TOPIC_BUTTONS      = 'B' // B-uttons
+const TOPIC_CURSOR       = 'C' // C-ursor
+const TOPIC_INTERNAL     = 'D' // D-ebug
+const TOPIC_BELL         = '!' // !!!
+const TOPIC_BACKDROP     = 'W' // W-allpaper
+const TOPIC_DOUBLE_LINES = 'H' // H-uge
 
 const OPT_CURSOR_VISIBLE   = (1 << 0)
 const OPT_DEBUGBAR         = (1 << 1)
@@ -188,6 +190,16 @@ module.exports = class ScreenParser {
           fontSize
         })
 
+      } else if (topic === TOPIC_DOUBLE_LINES) {
+        let lines = []
+        const count = du(strArray[ci++])
+        for (let i = 0; i < count; i++) {
+          // format: INDEX<<3 | (dbl-h-bot : dbl-h-top : dbl-w)
+          let n = du(strArray[ci++])
+          lines[n >> 3] = n & 0b111
+        }
+        updates.push({ topic: 'double-lines', lines: lines })
+
       } else if (topic === TOPIC_TITLE) {
         updates.push({ topic: 'title', title: collectOneTerminatedString() })