Theme Editor: Made %pv tag display bar and select from conditional branches correctly

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27398 a1c6a512-1295-4272-9138-f99709370657

utils/themeeditor/graphics/rbprogressbar.cpp

@@ -25,7 +25,8 @@
 #include "projectmodel.h"
 
 RBProgressBar::RBProgressBar(RBViewport *parent, const RBRenderInfo &info,
-                             int paramCount, skin_tag_parameter *params)
+                             int paramCount, skin_tag_parameter *params,
+                             bool pv)
                                  :QGraphicsItem(parent)
 {
     /* First we set everything to defaults */
@@ -72,7 +73,20 @@ RBProgressBar::RBProgressBar(RBViewport *parent, const RBRenderInfo &info,
 
 
     /* Finally, we scale the width according to the amount played */
-    int percent = info.device()->data("px").toInt();
+    int percent;
+    if(pv)
+    {
+        percent = (info.device()->data("pv").toInt() + 50) * 100 / 56;
+    }
+    else
+    {
+        percent = info.device()->data("px").toInt();
+    }
+    if(percent > 100)
+        percent = 100;
+    if(percent < 0)
+        percent = 0;
+
     w = w * percent / 100;
 
     size = QRectF(0, 0, w, h);

utils/themeeditor/graphics/rbprogressbar.h

@@ -34,7 +34,7 @@ class RBProgressBar : public QGraphicsItem
 {
 public:
     RBProgressBar(RBViewport* parent, const RBRenderInfo& info,
-                  int paramCount, skin_tag_parameter* params);
+                  int paramCount, skin_tag_parameter* params, bool pv = 0);
     virtual ~RBProgressBar();
 
     QRectF boundingRect() const;

utils/themeeditor/models/parsetreenode.cpp

@@ -660,6 +660,17 @@ bool ParseTreeNode::execTag(const RBRenderInfo& info, RBViewport* viewport)
             new RBProgressBar(viewport, info, element->params_count,
                               element->params);
             return true;
+
+        case 'v':
+            /* %pv */
+            if(element->params_count > 0)
+            {
+                new RBProgressBar(viewport, info, element->params_count,
+                                  element->params, true);
+                return true;
+            }
+            else
+                return false;
         }
 
         return false;
@@ -928,6 +939,26 @@ QVariant ParseTreeNode::evalTag(const RBRenderInfo& info, bool conditional,
                 child = ((branches - 1) * child / 100) + 1;
             }
         }
+        else if(QString(element->tag->name) == "pv")
+        {
+            /* ?pv gets scaled to the number of available children, sandwiched
+             * in between mute and 0/>0dB.  I assume a floor of -50dB for the
+             * time being
+             */
+            int dB = val.toInt();
+
+            if(dB < -50)
+                child = 0;
+            else if(dB == 0)
+                child = branches - 2;
+            else if(dB > 0)
+                child = branches - 1;
+            else
+            {
+                int options = branches - 3;
+                child = (options * (dB + 50)) / 50;
+            }
+        }
         else if(QString(element->tag->name) == "px")
         {
             child = val.toInt();

utils/themeeditor/resources/deviceoptions

@@ -105,7 +105,6 @@ artheight; Album Art Height ; spin(0,500) ; 100
 
 [Hardware Status]
 pv ; Current Volume (dB) ; spin(-100,100) ; 0
-?pv ; Current Volume (Conditional) ; combo(Mute, Below 0 dB, 0 dB, Above 0 dB) ; 0 dB
 bl ; Battery Level (-1 for unknown) ; spin(-1,100) ; 50
 bv ; Battery Volts ; spin(0,20) ; 5
 bt ; Time Left (-1 for unknown) ; spin(-1,500); 100