gain/balance presets in KnobGadget

notes

@@ -33,9 +33,12 @@ parameters {
 TODO {
     immediate frontburner {
         - fix warnings in mixboard
-        decide whether to standardize knob setup orderings
-        bump gain knob max to +12dB
-        preset function for gain and balance? autoGain (templated because bind)
+        - decide whether to standardize knob setup orderings
+        - bump gain knob max to +12dB
+        - preset function for gain and balance? autoGain (templated because bind)
+        
+        SVFilter::normalize()
+        ^ AudioFrame::clamp()
         
         revert action
         

xybrid/nodelib/svfilter.h

@@ -6,6 +6,7 @@
 #include "data/audioframe.h"
 
 namespace Xybrid::NodeLib {
+    /// 12db Chamberlin State Variable Filter
     class SVFilter {
         //
     public:

xybrid/nodes/gadget/gainbalance.cpp

@@ -74,6 +74,6 @@ void GainBalance::onGadgetCreated() {
     obj->showPluginName = false;
     auto l = new LayoutGadget(obj);
 
-    (new KnobGadget(l))->bind(gain)->setLabel("Gain")->setRange(-60, 6, .1)->setTextFunc(KnobGadget::textGain);
-    (new KnobGadget(l))->bind(balance)->setLabel("Balance")->setRange(-1.0, 1.0)->setTextFunc(KnobGadget::textBalance);
+    KnobGadget::autoGain(l, gain);
+    KnobGadget::autoBalance(l, balance);
 }

xybrid/nodes/gadget/mixboard.cpp

@@ -160,7 +160,7 @@ void MixBoard::onGadgetCreated() {
         /*auto mute = */(new ToggleGadget(tl))->bind(sections[i].mute)->setColor({255, 0, 0})->setToolTip("Mute", {-1, 0});
         /*auto solo = */(new ToggleGadget(tl))->bind(sections[i].solo)->setColor({191, 191, 0})->setToolTip("Solo", {-1, 0});
 
-        /*auto gain = */(new KnobGadget(ln))->bind(sections[i].gain)->setRange(-60, 6, .1)->setLabel("Gain")->setTextFunc(KnobGadget::textGain);
+        /*auto gain = */KnobGadget::autoGain(ln, sections[i].gain);
 
         auto end = (new LayoutGadget(ln, true))->setMetrics(-1, spc);
         auto bIns = (new ButtonGadget(end))->setSize(16, 16)->setText("+");

xybrid/nodes/sampler/beatpad.cpp

@@ -214,7 +214,7 @@ void BeatPad::initUI(NodeUIScene* scene) {
     sampleSelector->setSize(320, 96);
 
     auto r1 = (new LayoutGadget(ol))->setMetrics(0, -1, 0.0);
-    auto gain = (new KnobGadget(r1))->setRange(-60, 12, .1)->setLabel("Gain")->setTextFunc(KnobGadget::textGain);
+    auto gain = KnobGadget::autoGain(r1);
 
     // create functions now that all UI elements exist to be referenced
     state->selectNote = [=](int16_t n) {

xybrid/ui/gadgets/knobgadget.h

@@ -89,6 +89,12 @@ namespace Xybrid::UI {
         static QString textBalance(double);
 
         static void autoCreate(LayoutGadget*, NodeLib::ADSR&);
+
+        // common presets
+        static inline KnobGadget* autoGain(QGraphicsItem* p) { return (new KnobGadget(p))->setRange(-60, 12, .1)->setLabel("Gain")->setTextFunc(KnobGadget::textGain); }
+        template<typename T> static inline KnobGadget* autoGain(QGraphicsItem* p, T& v) { return autoGain(p)->bind(v); }
+        static inline KnobGadget* autoBalance(QGraphicsItem* p) { return (new KnobGadget(p))->setRange(-1.0, 1.0, .01)->setLabel("Balance")->setTextFunc(KnobGadget::textBalance); }
+        template<typename T> static inline KnobGadget* autoBalance(QGraphicsItem* p, T& v) { return autoBalance(p)->bind(v); }
     };
 
 }