implement long press on curve in mixes to launch edit of curve

radio/src/gui/colorlcd/menu_model.h

@@ -25,6 +25,12 @@
 
 class ModelMenu: public TabsGroup {
   public:
+#if defined(DEBUG_WINDOWS)
+  std::string getName() const override
+  {
+    return "ModelMenu";
+  }
+#endif  
     ModelMenu();
 };
 

radio/src/gui/colorlcd/model_curves.cpp

@@ -24,6 +24,19 @@
 
 #define SET_DIRTY() storageDirty(EE_MODEL)
 
+
+// initialize a new curves points to the default for a 5 point
+// curve.
+void initPoints(const CurveHeader &curve, int8_t *points)
+{
+  int dx = 2000 / (5 + curve.points - 1);
+  for (uint8_t i = 0; i < 5 + curve.points; i++) {
+    int x = -1000 + i * dx;
+    points[i] = x / 10;
+  }
+}
+
+
 class CurveEditWindow : public Page
 {
   public:
@@ -264,6 +277,20 @@ ModelCurvesPage::ModelCurvesPage() :
 {
 }
 
+
+// can be called from any other screen to edit a curve.
+// currently called from model_mixes.cpp on longpress.
+void ModelCurvesPage::pushEditCurve(int index)
+{
+  if (! isCurveUsed(index)) {
+    CurveHeader &curve = g_model.curves[index];
+    int8_t * points = curveAddress(index);
+    initPoints(curve, points);
+  }
+  
+  new CurveEditWindow(index);
+}
+
 void ModelCurvesPage::rebuild(FormWindow * window, int8_t focusIndex)
 {
   coord_t scrollPosition = window->getScrollPositionY();
@@ -364,11 +391,7 @@ void ModelCurvesPage::build(FormWindow * window, int8_t focusIndex)
       button->setPressHandler([=]() {
         Menu *menu = new Menu(window);
         menu->addLine(STR_EDIT, [=]() {
-            int dx = 2000 / (5 + curve.points - 1);
-            for (uint8_t i = 0; i < 5 + curve.points; i++) {
-              int x = -1000 + i * dx;
-              points[i] = x / 10;
-            }
+            initPoints(curve, points);
             editCurve(window, index);
         });
         menu->addLine(STR_CURVE_PRESET, presetCurveFct);

radio/src/gui/colorlcd/model_curves.h

@@ -27,6 +27,7 @@
 class ModelCurvesPage: public PageTab {
   public:
     ModelCurvesPage();
+    static void pushEditCurve(int index);
 
     virtual void build(FormWindow * window) override
     {

radio/src/gui/colorlcd/model_mixes.cpp

@@ -24,12 +24,66 @@
 #include "bitfield.h"
 #include "model_inputs.h"
 #include "gvar_numberedit.h"
+#include "model_curves.h"
+
 
 #define SET_DIRTY()     storageDirty(EE_MODEL)
-
 #define PASTE_BEFORE    -2
 #define PASTE_AFTER     -1
 
+class CurvesListChoice : public Choice
+{
+  public:
+    CurvesListChoice(FormGroup * parent, const rect_t &rect, int vmin, int vmax, std::function<int()> getValue, std::function<void(int)> setValue = nullptr, WindowFlags windowFlags = 0);
+    void setLongPressHandler(std::function<void(event_t)> handler);
+
+#if defined(HARDWARE_KEYS)
+    void onEvent(event_t event) override;
+#endif
+
+#if defined(HARDWARE_TOUCH)
+    bool onTouchEnd(coord_t x, coord_t y) override;
+#endif
+
+#if defined(DEBUG_WINDOWS)
+    std::string getName() const override
+    {
+      return "CurvesListChoice";
+    }
+#endif
+
+protected:
+    std::function<void(event_t)> longPressHandler = nullptr;
+};
+
+void CurvesListChoice::setLongPressHandler(std::function<void(event_t)> handler)
+{
+  longPressHandler = handler;
+}
+
+CurvesListChoice::CurvesListChoice(FormGroup * parent, const rect_t & rect, int vmin, int vmax, std::function<int()> getValue, std::function<void(int)> setValue, WindowFlags windowFlags) :
+  Choice(parent, rect, vmin, vmax, getValue, setValue, windowFlags)
+{
+}
+
+bool CurvesListChoice::onTouchEnd(coord_t x, coord_t y)
+{
+  return Choice::onTouchEnd(x,y);
+}
+
+void CurvesListChoice::onEvent(event_t event)
+{
+  if (event == EVT_KEY_LONG(KEY_ENTER)) {
+    if (longPressHandler) {
+      killEvents(event);
+      longPressHandler(event);
+      return;
+    }
+  }
+
+  Choice::onEvent(event);
+}
+
 uint8_t getMixesCount()
 {
   uint8_t count = 0;
@@ -228,9 +282,16 @@ class MixEditWindow : public Page
         break;
 
       case CURVE_REF_CUSTOM: {
-        auto choice = new Choice(curveParamField, rect, -MAX_CURVES, MAX_CURVES,
+        auto choice = new CurvesListChoice(curveParamField, rect, -MAX_CURVES, MAX_CURVES,
                                  GET_SET_DEFAULT(line->curve.value));
         choice->setTextHandler([](int value) { return getCurveString(value); });
+        choice->setLongPressHandler([this](event_t event) {
+          MixData *mix = mixAddress(mixIndex);
+          auto a = parent->getName();
+          // if no curve is specified then dont link to curve page
+          if (mix->curve.value != 0)
+            ModelCurvesPage::pushEditCurve(abs(mix->curve.value) - 1);
+        });
         break;
       }
     }