From 3756041e8abafad21f0bff253aa2bce0fca3feba Mon Sep 17 00:00:00 2001
From: Michael Neumann <mneumann@ntecs.de>
Date: Sun, 16 Aug 2015 16:13:14 +0200
Subject: DragonFly: Sync get/set audio volume with FreeBSD

---
 libLumina/LuminaOS-DragonFly.cpp | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/libLumina/LuminaOS-DragonFly.cpp b/libLumina/LuminaOS-DragonFly.cpp
index 2f9beb4b..f0e54ff7 100644
--- a/libLumina/LuminaOS-DragonFly.cpp
+++ b/libLumina/LuminaOS-DragonFly.cpp
@@ -10,6 +10,7 @@
 
 //can't read xbrightness settings - assume invalid until set
 static int screenbrightness = -1;
+static int audiovolume = -1;
 
 QString LOS::OSName(){ return "DragonFly BSD"; }
 
@@ -85,14 +86,31 @@ void LOS::setScreenBrightness(int percent){
 
 //Read the current volume
 int LOS::audioVolume(){ //Returns: audio volume as a percentage (0-100, with -1 for errors)
+  int out = audiovolume;
+  if(out < 0){
+    //First time session check: Load the last setting for this user
+    QString info = LUtils::readFile(QDir::homePath()+"/.lumina/.currentvolume").join("");
+    if(!info.isEmpty()){
+      out = info.simplified().toInt();
+      audiovolume = out; //unset this internal flag
+      return out;
+    }
+  }
+
+  //probe the system for the current volume (other utils could be changing it)
   QString info = LUtils::getCmdOutput("mixer -S vol").join(":").simplified(); //ignores any other lines
-  int out = -1;
   if(!info.isEmpty()){
     int L = info.section(":",1,1).toInt();
     int R = info.section(":",2,2).toInt();
     if(L>R){ out = L; }
     else{ out = R; }
+    if(out != audiovolume){
+      //Volume changed by other utility: adjust the saved value as well
+      LUtils::writeFile(QDir::homePath()+"/.lumina/.currentvolume", QStringList() << QString::number(out), true);
+    }
+    audiovolume = out;
   }
+
   return out;
 }
 
@@ -105,14 +123,17 @@ void LOS::setAudioVolume(int percent){
     int L = info.section(":",1,1).toInt();
     int R = info.section(":",2,2).toInt();
     int diff = L-R;
+    if((percent == L) && (L==R)){ return; } //already set to that volume
     if(diff<0){ R=percent; L=percent+diff; } //R Greater
     else{ L=percent; R=percent-diff; } //L Greater or equal
     //Check bounds
     if(L<0){L=0;}else if(L>100){L=100;}
     if(R<0){R=0;}else if(R>100){R=100;}
     //Run Command
+    audiovolume = percent; //save for checking later
     LUtils::runCmd("mixer vol "+QString::number(L)+":"+QString::number(R));
-  }	
+    LUtils::writeFile(QDir::homePath()+"/.lumina/.currentvolume", QStringList() << QString::number(percent), true);
+  }
 }
 
 //Change the current volume a set amount (+ or -)
-- 
cgit