Merge pull request #887 from Dmitry422/dev

LCD Color Inversion

applications/services/gui/canvas.c

@@ -94,6 +94,16 @@ size_t canvas_get_buffer_size(const Canvas* canvas) {
     return u8g2_GetBufferTileWidth(&canvas->fb) * u8g2_GetBufferTileHeight(&canvas->fb) * 8;
 }
 
+bool canvas_is_inverted_lcd(Canvas* canvas) {
+    furi_assert(canvas);
+    return canvas->lcd_inversion;
+}
+
+void canvas_set_inverted_lcd(Canvas* canvas, bool inverted) {
+    furi_assert(canvas);
+    canvas->lcd_inversion = inverted;
+}
+
 void canvas_frame_set(
     Canvas* canvas,
     int32_t offset_x,
@@ -141,11 +151,24 @@ const CanvasFontParameters* canvas_get_font_params(const Canvas* canvas, Font fo
 
 void canvas_clear(Canvas* canvas) {
     furi_check(canvas);
-    u8g2_ClearBuffer(&canvas->fb);
+
+    if(canvas->lcd_inversion) {
+        u8g2_FillBuffer(&canvas->fb);
+    } else {
+        u8g2_ClearBuffer(&canvas->fb);
+    }
 }
 
 void canvas_set_color(Canvas* canvas, Color color) {
     furi_check(canvas);
+
+    if(canvas->lcd_inversion) {
+        if(color == ColorBlack) {
+            color = ColorWhite;
+        } else if(color == ColorWhite) {
+            color = ColorBlack;
+        }
+    }
     u8g2_SetDrawColor(&canvas->fb, color);
 }
 
@@ -155,7 +178,14 @@ void canvas_set_font_direction(Canvas* canvas, CanvasDirection dir) {
 }
 
 void canvas_invert_color(Canvas* canvas) {
-    canvas->fb.draw_color = !canvas->fb.draw_color;
+    if((canvas->fb.draw_color == ColorXOR) && canvas->lcd_inversion) {
+        // ColorXOR = 0x02, inversion change it to White = 0x00
+        // but if we have lcd_inversion ON then we need Black =0x01 instead White 0x00
+        // so we force changing color to black
+        canvas->fb.draw_color = ColorBlack;
+    } else {
+        canvas->fb.draw_color = !canvas->fb.draw_color;
+    }
 }
 
 void canvas_set_font(Canvas* canvas, Font font) {

applications/services/gui/canvas.h

@@ -447,6 +447,10 @@ void canvas_draw_icon_bitmap(
     int16_t h,
     const Icon* icon);
 
+bool canvas_is_inverted_lcd(Canvas* canvas);
+
+void canvas_set_inverted_lcd(Canvas* canvas, bool inverted);
+
 #ifdef __cplusplus
 }
 #endif

applications/services/gui/canvas_i.h

@@ -47,6 +47,7 @@ struct Canvas {
     CompressIcon* compress_icon;
     CanvasCallbackPairArray_t canvas_callback_pair;
     FuriMutex* mutex;
+    bool lcd_inversion;
 };
 
 /** Allocate memory and initialize canvas

applications/services/notification/notification_app.c

@@ -56,10 +56,6 @@ void night_shift_timer_callback(void* context) {
     NotificationApp* app = context;
     DateTime current_date_time;
 
-    // IN DEVELOPMENT
-    // // save current night_shift;
-    // float old_night_shift = app->current_night_shift;
-
     // take system time and convert to minutes
     furi_hal_rtc_get_datetime(&current_date_time);
     uint32_t time = current_date_time.hour * 60 + current_date_time.minute;
@@ -73,12 +69,6 @@ void night_shift_timer_callback(void* context) {
         app->current_night_shift = app->settings.night_shift;
         app->rgb_srv->current_night_shift = app->settings.night_shift;
     }
-
-    // IN DEVELOPMENT
-    // // if night shift was changed then update stock and rgb backlight to new value
-    // if(old_night_shift != app->current_night_shift) {
-    //      notification_message(app, &sequence_display_backlight_on);
-    // }
 }
 
 // --- NIGHT SHIFT END ---
@@ -630,6 +620,12 @@ static NotificationApp* notification_app_alloc(void) {
         furi_timer_alloc(night_shift_timer_callback, FuriTimerTypePeriodic, app);
     // --- NIGHT SHIFT END ---
 
+    Gui* tmp_gui = furi_record_open(RECORD_GUI);
+    Canvas* tmp_canvas = gui_direct_draw_acquire(tmp_gui);
+    canvas_set_inverted_lcd(tmp_canvas, false);
+    gui_direct_draw_release(tmp_gui);
+    furi_record_close(RECORD_GUI);
+
     return app;
 }
 
@@ -660,6 +656,13 @@ static void notification_apply_settings(NotificationApp* app) {
         night_shift_timer_start(app);
     }
     // --- NIGHT SHIFT END ---
+
+    //setup canvas variable "inversion" by settings value;
+    Gui* tmp_gui = furi_record_open(RECORD_GUI);
+    Canvas* tmp_canvas = gui_direct_draw_acquire(tmp_gui);
+    canvas_set_inverted_lcd(tmp_canvas, app->settings.lcd_inversion);
+    gui_direct_draw_release(tmp_gui);
+    furi_record_close(RECORD_GUI);
 }
 
 static void notification_init_settings(NotificationApp* app) {

applications/services/notification/notification_app.h

@@ -34,7 +34,7 @@ typedef struct {
     Light light;
 } NotificationLedLayer;
 
-#define NOTIFICATION_SETTINGS_VERSION 0x03
+#define NOTIFICATION_SETTINGS_VERSION 0x04
 #define NOTIFICATION_SETTINGS_PATH    INT_PATH(NOTIFICATION_SETTINGS_FILE_NAME)
 
 typedef struct {
@@ -48,6 +48,7 @@ typedef struct {
     float night_shift;
     uint32_t night_shift_start;
     uint32_t night_shift_end;
+    bool lcd_inversion;
 } NotificationSettings;
 
 struct NotificationApp {