Add a LEDMode based on AlphaSquare.

The new singleton objects implements a LED mode where each pressed key
will light up the appropriate symbol on the LEDs, on the side it was
pressed on. We use different timers for each half.

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

examples/LED-AlphaSquare/LED-AlphaSquare.ino

@@ -75,9 +75,9 @@ const macro_t *macroAction(uint8_t macroIndex, uint8_t keyState) {
 }
 
 void setup () {
-  Kaleidoscope.setup (KEYMAP_SIZE);
+  Kaleidoscope.setup ();
 
-  Kaleidoscope.use (&LEDControl, &AlphaSquare, &Macros, NULL);
+  USE_PLUGINS (&AlphaSquare, &AlphaSquareEffect, &Macros);
   AlphaSquare.color = { 0xcb, 0xc0, 0xff };
 }
 

src/Kaleidoscope-LED-AlphaSquare.h

@@ -19,3 +19,4 @@
 #pragma once
 
 #include <Kaleidoscope/LED-AlphaSquare.h>
+#include <Kaleidoscope/AlphaSquare-Effect.h>

src/Kaleidoscope/AlphaSquare-Effect.cpp

@@ -0,0 +1,76 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope-LED-AlphaSquare -- 4x4 pixel LED alphabet
+ * Copyright (C) 2017  Gergely Nagy
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <Kaleidoscope-LED-AlphaSquare.h>
+
+namespace KaleidoscopePlugins {
+  namespace LEDEffects {
+    uint16_t AlphaSquareEffect::length = 200;
+    uint32_t AlphaSquareEffect::endTimeLeft, AlphaSquareEffect::endTimeRight;
+    Key AlphaSquareEffect::lastKeyLeft, AlphaSquareEffect::lastKeyRight;
+
+    AlphaSquareEffect::AlphaSquareEffect (void) {
+    }
+
+    void
+    AlphaSquareEffect::begin (void) {
+      Kaleidoscope.useEventHandlerHook (eventHandlerHook);
+      LEDMode::begin ();
+    }
+
+    void
+    AlphaSquareEffect::update (void) {
+      if (endTimeLeft && millis () > endTimeLeft) {
+        ::AlphaSquare.clear (lastKeyLeft);
+        endTimeLeft = 0;
+      }
+      if (endTimeRight && millis () > endTimeRight) {
+        ::AlphaSquare.clear (lastKeyRight);
+        endTimeRight = 0;
+      }
+    }
+
+    Key
+    AlphaSquareEffect::eventHandlerHook (Key key, byte row, byte col, uint8_t keyState) {
+      if (keyState & INJECTED)
+        return key;
+
+      if (key < Key_A || key > Key_0)
+        return key;
+
+      if (!key_is_pressed (keyState))
+        return key;
+
+      uint8_t displayCol = 2;
+
+      if (col < COLS / 2) {
+        lastKeyLeft = key;
+        endTimeLeft = millis () + length;
+      } else {
+        lastKeyRight = key;
+        endTimeRight = millis () + length;
+        displayCol = 10;
+      }
+
+      ::AlphaSquare.display (key, displayCol);
+      return key;
+    }
+  };
+};
+
+KaleidoscopePlugins::LEDEffects::AlphaSquareEffect AlphaSquareEffect;

src/Kaleidoscope/AlphaSquare-Effect.h

@@ -0,0 +1,43 @@
+/* -*- mode: c++ -*-
+ * Kaleidoscope-LED-AlphaSquare -- 4x4 pixel LED alphabet
+ * Copyright (C) 2017  Gergely Nagy
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-LEDControl.h>
+
+namespace KaleidoscopePlugins {
+  namespace LEDEffects {
+    class AlphaSquareEffect : public LEDMode {
+    public:
+      AlphaSquareEffect (void);
+
+      virtual void begin (void) final;
+      virtual void update (void) final;
+
+      static uint16_t length;
+    private:
+      static uint32_t endTimeLeft, endTimeRight;
+      static Key lastKeyLeft, lastKeyRight;
+
+      static Key eventHandlerHook (Key key, uint8_t row, uint8_t col, uint8_t keyState);
+    };
+  };
+};
+
+extern KaleidoscopePlugins::LEDEffects::AlphaSquareEffect AlphaSquareEffect;

src/Kaleidoscope/LED-AlphaSquare.h

@@ -16,6 +16,8 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#pragma once
+
 #include <Kaleidoscope.h>
 #include <Kaleidoscope-LEDControl.h>