Added some comments + minor formatting fixes.

Author: pgervais

src/mruby-zest/example/LfoVis.qml

@@ -1,3 +1,6 @@
+// Graphical visualization of oscillator parameters.
+// This widget handles a variety of plots, depending on the value of
+// lfo_vis.type. 
 Widget {
     id: lfo_vis
 
@@ -150,8 +153,8 @@ Widget {
             Proc.new {|phase| (0.05 ** phase) * 2.0 - 1.0}
         when :exp2
             Proc.new {|phase| (0.001 ** phase) * 2.0 - 1.0}
-	when :random
-	    Proc.new {|phase| 2*rand - 1 } #TODO: proper RAN LFO display
+        when :random
+	        Proc.new {|phase| 2*rand - 1 } #TODO: proper RAN LFO display
         else
             Proc.new {|x| Math.sin(2*3.14*x) }
         end

src/mruby-zest/example/ZynAddGlobal.qml

@@ -12,6 +12,7 @@ Widget {
     }
 
     Swappable {
+        // Graphical visualization of oscillator parameters.
         id: row1
 
         function setDataVis(type, tab) {

src/mruby-zest/example/ZynPadGlobal.qml

@@ -10,6 +10,7 @@ Widget {
     }
 
     Swappable {
+        // Graphical visualization of oscillator parameters.
         id: row1
         content: Qml::LfoVis
 
@@ -189,4 +190,4 @@ Widget {
         end
         set_view()
     }
-}
+}

src/mruby-zest/example/ZynSubGlobal.qml

@@ -10,6 +10,7 @@ Widget {
     }
 
     Swappable {
+        // Graphical visualization of oscillator parameters.
         id: row1
         content: Qml::LfoVis
 
@@ -26,7 +27,6 @@ Widget {
             Draw::Layout::hpack(l, selfBox, children)
         }
 
-
         Swappable { id: gen }
         Swappable { id: env }
     }

src/mruby-zest/qml/Swappable.qml

@@ -34,6 +34,7 @@ Widget {
         end
     }
 
+    // For debugging purposes.
     function dump_plist()
     {
         plist = swappable.db.instance_eval{@plist}

src/mruby-zest/qml/Widget.qml

@@ -83,6 +83,8 @@ Object {
         end
     }
 
+    // Returns the top-level object in the hierarchy. In the case of
+    // zest, it is a ZRunner instance.
     function root() {
         if(parent.respond_to?(:root))
             parent.root