Add a `led.theme` Focus command

Allows setting all of the LEDs to custom, distinct colors (as opposed to
`led.setAll`, which sets them all to the same color). This allows one to
upload a theme in one go, without having to set each LED one by one.

Fixes #5.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

src/Kaleidoscope-LEDControl.cpp

@@ -161,7 +161,8 @@ LEDControl_::focusHook (const char *command) {
   enum {
     SETALL,
     MODE,
-    AT
+    AT,
+    THEME,
   } subCommand;
 
   if (strncmp_P (command, PSTR ("led."), 4) != 0)
@@ -172,6 +173,8 @@ LEDControl_::focusHook (const char *command) {
     subCommand = SETALL;
   else if (strcmp_P (command + 4, PSTR ("mode")) == 0)
     subCommand = MODE;
+  else if (strcmp_P (command + 4, PSTR ("theme")) == 0)
+    subCommand = THEME;
   else
     return false;
 
@@ -226,6 +229,32 @@ LEDControl_::focusHook (const char *command) {
       }
       break;
     }
+  case THEME:
+    {
+      if (Serial.peek () == '\n') {
+        for (uint8_t idx = 0; idx < LED_COUNT; idx++) {
+          cRGB c = LEDControl.led_get_crgb_at (idx);
+
+          Focus.printColor (c);
+          Focus.printSpace ();
+        }
+        Serial.println ();
+        break;
+      }
+
+      uint8_t idx = 0;
+      while (idx < LED_COUNT && Serial.peek() != '\n') {
+        cRGB color;
+
+        color.r = Serial.parseInt ();
+        color.g = Serial.parseInt ();
+        color.b = Serial.parseInt ();
+
+        LEDControl.led_set_crgb_at (idx, color);
+        idx++;
+      }
+      break;
+    }
   }
 
   return true;

src/Kaleidoscope-LEDControl.h

@@ -59,4 +59,5 @@ extern LEDControl_ LEDControl;
 #define FOCUS_HOOK_LEDCONTROL FOCUS_HOOK (LEDControl.focusHook, \
                                           "led.at\n"            \
                                           "led.setAll\n"        \
+                                          "led.theme\n"         \
                                           "led.mode")