feat: legible ReaSampler 9000 editor — bigger knobs, ms time constants, per-ring double-click reset, and an antialiased draw pass

src/shell/instrument/reasampler_editor.h

@@ -195,6 +195,13 @@ private:
     bool mouseDownDeck(const FaceLayout& fl, int x, int y);
     void mouseDownBrowse(int w, int h, int x, int y);
 
+    // Double-click = reset the radial knob under the pointer to its default. Returns false when
+    // no knob claims the point, and the caller then replays it as an ordinary mouse-down (the
+    // platform note at the window class explains why that fall-through is load-bearing).
+    bool onMouseDoubleClick(int x, int y);
+    bool doubleClickChrome(const FaceLayout& fl, int x, int y);
+    bool doubleClickDeck(const FaceLayout& fl, int x, int y);
+
     // Whether deck knob `id` belongs to a group whose enable toggle is off. The ONE predicate
     // behind both the Disabled paint and the inert grab, so they cannot disagree.
     bool deckKnobDisabled(int id) const;
@@ -335,16 +342,12 @@ private:
     void beginMarkerDrag(WaveMarker which, const SetupMarkers& m, std::int64_t frames, int x);
 
     // Deck knobs edit the parameter set's PlaySeconds (play mode + AHDSR; pitch engine + AD
-    // pitch envelope) — wall-clock seconds, rate-free; the build resolves to frames.
-
-    // The normalized [0,1] display value for control `id` given `play` (seconds -> 0..1 over
-    // a fixed ceiling, levels and fractions as-is, semitone depth centered at 0.5, curve
-    // exponents over their logarithmic travel).
+    // pitch envelope) — wall-clock seconds, rate-free; the build resolves to frames. The three
+    // adapters below are thin int-id wrappers over the pure `deck_values` module, which owns
+    // what each control's value means; see its header rather than restating the domains here.
     double controlValue(int id, const PlaySeconds& play) const;
-
-    // Applies a committed control interaction to `play`: a knob's normalized `value` or a
-    // toggle's `segment` (0/1). Mutates `play` in place.
     void applyControl(int id, PlaySeconds& play, double value, int segment) const;
+    void resetParamControl(int id);
 
     // Applies a knob/toggle interaction to the ONE parameter set for control `id`: ordinary
     // controls route through applyControl; kKeyTrack writes the keyTrack scalar (0..200%
@@ -385,8 +388,8 @@ private:
     // params edit, no reload).
     void applyDeckKnob(int id, double norm);
 
-    // The knob's live value label shown during hover/drag: seconds, percents, source
-    // frames, signed semitones, a voice count, or the master-gain dB.
+    // The knob's live value label shown during hover/drag: milliseconds, percents, Hz, signed
+    // semitones, a curve exponent, a voice count, or the master-gain dB.
     std::string deckValueLabel(int id) const;
 
     ReaSamplerProcessor* processor_ = nullptr;