From 9a4ce28683b667ab67d48d92196bab7e277d4800 Mon Sep 17 00:00:00 2001
From: Fred Sundvik <fsundvik@gmail.com>
Date: Sat, 1 Apr 2017 22:52:58 +0300
Subject: Display layer bitmap and keyboard led states on the LCD

---
 quantum/visualizer/visualizer.c | 38 +++++++++++++++++++++++++++++++++++++-
 quantum/visualizer/visualizer.h |  4 +++-
 2 files changed, 40 insertions(+), 2 deletions(-)

(limited to 'quantum/visualizer')

diff --git a/quantum/visualizer/visualizer.c b/quantum/visualizer/visualizer.c
index 5826d909e..62ebebcee 100644
--- a/quantum/visualizer/visualizer.c
+++ b/quantum/visualizer/visualizer.c
@@ -56,6 +56,8 @@ SOFTWARE.
 // mods status
 #include "action_util.h"
 
+#include "led.h"
+
 static visualizer_keyboard_status_t current_status = {
     .layer = 0xFFFFFFFF,
     .default_layer = 0xFFFFFFFF,
@@ -350,6 +352,39 @@ bool keyframe_display_mods_bitmap(keyframe_animation_t* animation, visualizer_st
     gdispFlush();
     return false;
 }
+
+bool keyframe_display_led_states(keyframe_animation_t* animation, visualizer_state_t* state)
+{
+    char output[sizeof("NUM CAPS SCRL COMP KANA")];
+    uint8_t pos = 0;
+
+    if (state->status.leds & (1u << USB_LED_NUM_LOCK)) {
+       memcpy(output + pos, "NUM ", 4);
+       pos += 4;
+    }
+    if (state->status.leds & (1u << USB_LED_CAPS_LOCK)) {
+       memcpy(output + pos, "CAPS ", 5);
+       pos += 5;
+    }
+    if (state->status.leds & (1u << USB_LED_SCROLL_LOCK)) {
+       memcpy(output + pos, "SCRL ", 5);
+       pos += 5;
+    }
+    if (state->status.leds & (1u << USB_LED_COMPOSE)) {
+       memcpy(output + pos, "COMP ", 5);
+       pos += 5;
+    }
+    if (state->status.leds & (1u << USB_LED_KANA)) {
+       memcpy(output + pos, "KANA ", 5);
+       pos += 5;
+    }
+    output[pos] = 0;
+    gdispClear(White);
+    gdispDrawString(0, 10, output, state->font_dejavusansbold12, Black);
+    gdispFlush();
+    return false;
+}
+
 #endif // LCD_ENABLE
 
 bool keyframe_disable_lcd_and_backlight(keyframe_animation_t* animation, visualizer_state_t* state) {
@@ -433,8 +468,9 @@ static DECLARE_THREAD_FUNCTION(visualizerThread, arg) {
                     user_visualizer_suspend(&state);
                 }
                 else {
+                    visualizer_keyboard_status_t prev_status = state.status;
                     state.status = current_status;
-                    update_user_visualizer_state(&state);
+                    update_user_visualizer_state(&state, prev_status);
                 }
                 state.prev_lcd_color = state.current_lcd_color;
             }
diff --git a/quantum/visualizer/visualizer.h b/quantum/visualizer/visualizer.h
index 315af5022..2c81cb9f7 100644
--- a/quantum/visualizer/visualizer.h
+++ b/quantum/visualizer/visualizer.h
@@ -136,6 +136,8 @@ bool keyframe_display_layer_text(keyframe_animation_t* animation, visualizer_sta
 bool keyframe_display_layer_bitmap(keyframe_animation_t* animation, visualizer_state_t* state);
 // Displays a bitmap (0/1) of all the currently active mods
 bool keyframe_display_mods_bitmap(keyframe_animation_t* animation, visualizer_state_t* state);
+// Displays the keyboard led states (CAPS (Caps lock), NUM (Num lock), SCRL (Scroll lock), COMP (Compose), KANA)
+bool keyframe_display_led_states(keyframe_animation_t* animation, visualizer_state_t* state);
 
 bool keyframe_disable_lcd_and_backlight(keyframe_animation_t* animation, visualizer_state_t* state);
 bool keyframe_enable_lcd_and_backlight(keyframe_animation_t* animation, visualizer_state_t* state);
@@ -146,7 +148,7 @@ bool enable_visualization(keyframe_animation_t* animation, visualizer_state_t* s
 
 // These functions have to be implemented by the user
 void initialize_user_visualizer(visualizer_state_t* state);
-void update_user_visualizer_state(visualizer_state_t* state);
+void update_user_visualizer_state(visualizer_state_t* state, visualizer_keyboard_status_t prev_status);
 void user_visualizer_suspend(visualizer_state_t* state);
 void user_visualizer_resume(visualizer_state_t* state);
 
-- 
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