Add QRCode class and Lvgl widget for Lua scripts.

radio/src/gui/colorlcd/view_about.cpp

@@ -41,14 +41,11 @@ const std::string edgetx_url = "https://edgetx.org";
 AboutUs::AboutUs() :
     BaseDialog(MainWindow::instance(), STR_ABOUT_US, true, 220, LV_SIZE_CONTENT)
 {
-  new StaticText(form, rect_t{0, 0, LV_PCT(100), LV_SIZE_CONTENT},
+  new StaticText(form, {0, 0, LV_PCT(100), LV_SIZE_CONTENT},
                  about_str + "\n" + copyright_str,
                  COLOR_THEME_SECONDARY1 | CENTERED);
 
-  auto qrBox = new Window(form, {0, 0, LV_PCT(100), 160});
-  auto qr = lv_qrcode_create(qrBox->getLvObj(), 150,
-                             makeLvColor(COLOR_THEME_SECONDARY1),
-                             makeLvColor(COLOR_THEME_SECONDARY3));
-  lv_qrcode_update(qr, edgetx_url.c_str(), edgetx_url.length());
-  lv_obj_center(qr);
+  auto qrBox = new Window(form, {0, 0, LV_PCT(100), QR_SZ});
+  auto qr = new QRCode(qrBox, 0, 0, QR_SZ, edgetx_url);
+  lv_obj_center(qr->getLvObj());
 }

radio/src/gui/colorlcd/view_about.h

@@ -25,4 +25,6 @@ class AboutUs : public BaseDialog
 {
  public:
   AboutUs();
+
+  static LAYOUT_VAL(QR_SZ, 150, 150)
 };

radio/src/lua/api_colorlcd_lvgl.cpp

@@ -69,6 +69,11 @@ static int luaLvglImage(lua_State *L)
   return luaLvglObj(L, [=]() { return new LvglWidgetImage(); });
 }
 
+static int luaLvglQRCode(lua_State *L)
+{
+  return luaLvglObj(L, [=]() { return new LvglWidgetQRCode(); });
+}
+
 static int luaLvglMeter(lua_State *L)
 {
   return luaLvglObj(L, [=]() { return new LvglWidgetMeter(); });
@@ -217,6 +222,8 @@ static void buildLvgl(lua_State *L, int srcIndex, int refIndex)
       lvobj = new LvglWidgetArc();
     else if (strcasecmp(p.type, "image") == 0)
       lvobj = new LvglWidgetImage();
+    else if (strcasecmp(p.type, "qrcode") == 0)
+      lvobj = new LvglWidgetQRCode();
     else if (strcasecmp(p.type, "meter") == 0)
       lvobj = new LvglWidgetMeter();
     else if (!luaLvglManager->isWidget()) {
@@ -280,6 +287,7 @@ LROT_FUNCENTRY(rectangle, luaLvglRectangle)
 LROT_FUNCENTRY(circle, luaLvglCircle)
 LROT_FUNCENTRY(arc, luaLvglArc)
 LROT_FUNCENTRY(image, luaLvglImage)
+LROT_FUNCENTRY(qrcode, luaLvglQRCode)
 LROT_FUNCENTRY(meter, luaLvglMeter)
 LROT_FUNCENTRY(button, luaLvglButton)
 LROT_FUNCENTRY(toggle, luaLvglToggle)

radio/src/lua/lua_lvgl_widget.cpp

@@ -581,6 +581,22 @@ void LvglWidgetImage::build(lua_State *L)
 
 //-----------------------------------------------------------------------------
 
+void LvglWidgetQRCode::parseParam(lua_State *L, const char *key)
+{
+  if (!strcmp(key, "data")) {
+    data = luaL_checkstring(L, -1);
+  } else {
+    LvglWidgetObject::parseParam(L, key);
+  }
+}
+
+void LvglWidgetQRCode::build(lua_State *L)
+{
+  window = new QRCode(lvglManager->getCurrentParent(), x, y, w, data);
+}
+
+//-----------------------------------------------------------------------------
+
 class LvglWidgetScaleIndicator : public LvglWidgetObjectBase
 {
  public:

radio/src/lua/lua_lvgl_widget.h

@@ -248,6 +248,21 @@ class LvglWidgetImage : public LvglWidgetObject
 
 //-----------------------------------------------------------------------------
 
+class LvglWidgetQRCode : public LvglWidgetObject
+{
+ public:
+  LvglWidgetQRCode() : LvglWidgetObject() {}
+
+  void build(lua_State *L) override;
+
+ protected:
+  std::string data;
+
+  void parseParam(lua_State *L, const char *key) override;
+};
+
+//-----------------------------------------------------------------------------
+
 class LvglWidgetMeterScale;
 
 class LvglWidgetMeter : public LvglWidgetRoundObject

radio/src/thirdparty/libopenui/src/static.cpp

@@ -356,3 +356,14 @@ void StaticLZ4Image::deleteLater(bool detach, bool trash)
     Window::deleteLater(detach, trash);
   }
 }
+
+//-----------------------------------------------------------------------------
+
+QRCode::QRCode(Window *parent, coord_t x, coord_t y, coord_t sz, std::string data) :
+    Window(parent, {x, y, sz, sz})
+{
+  auto qr = lv_qrcode_create(lvobj, sz,
+                             makeLvColor(COLOR_THEME_SECONDARY1),
+                             makeLvColor(COLOR_THEME_SECONDARY3));
+  lv_qrcode_update(qr, data.c_str(), data.length());
+}

radio/src/thirdparty/libopenui/src/static.h

@@ -164,6 +164,8 @@ class StaticImage : public Window
   lv_obj_t *image = nullptr;
 };
 
+//-----------------------------------------------------------------------------
+
 class StaticBitmap : public Window
 {
  public:
@@ -183,6 +185,8 @@ class StaticBitmap : public Window
   BitmapBuffer *img = nullptr;
 };
 
+//-----------------------------------------------------------------------------
+
 class StaticLZ4Image : public Window
 {
  public:
@@ -198,3 +202,17 @@ class StaticLZ4Image : public Window
 
   void deleteLater(bool detach, bool trash) override;
 };
+
+//-----------------------------------------------------------------------------
+
+class QRCode : public Window
+{
+ public:
+  QRCode(Window *parent, coord_t x, coord_t y, coord_t sz, std::string data);
+
+#if defined(DEBUG_WINDOWS)
+  std::string getName() const override { return "QRCode"; }
+#endif
+
+ protected:
+};