From 3c9ccd2c50440a10fc6b56a2dbca848585fcf61a Mon Sep 17 00:00:00 2001
From: Willy-JL <willy.leslie@icloud.com>
Date: Wed, 1 Mar 2023 00:46:40 +0000
Subject: [PATCH] Left handed mode

---
 .../xtreme_app/scenes/xtreme_app_scene_misc.c | 14 ++++++++++++++
 applications/services/gui/canvas.c            |  9 +++++++++
 applications/services/gui/gui.c               | 19 +++++++++++++++++++
 applications/services/xtreme/settings.c       |  1 +
 applications/services/xtreme/settings.h       |  1 +
 5 files changed, 44 insertions(+)

diff --git a/applications/main/xtreme_app/scenes/xtreme_app_scene_misc.c b/applications/main/xtreme_app/scenes/xtreme_app_scene_misc.c
index 22b5fb1b0..eec11c94a 100644
--- a/applications/main/xtreme_app/scenes/xtreme_app_scene_misc.c
+++ b/applications/main/xtreme_app/scenes/xtreme_app_scene_misc.c
@@ -3,6 +3,7 @@
 enum VarItemListIndex {
     VarItemListIndexSortDirsFirst,
     VarItemListIndexDarkMode,
+    VarItemListIndexLeftHanded,
     VarItemListIndexChangeDeviceName,
 };
 
@@ -27,6 +28,14 @@ static void xtreme_app_scene_misc_dark_mode_changed(VariableItem* item) {
     app->save_settings = true;
 }
 
+static void xtreme_app_scene_misc_left_handed_changed(VariableItem* item) {
+    XtremeApp* app = variable_item_get_context(item);
+    bool value = variable_item_get_current_value_index(item);
+    variable_item_set_current_value_text(item, value ? "ON" : "OFF");
+    XTREME_SETTINGS()->left_handed = value;
+    app->save_settings = true;
+}
+
 void xtreme_app_scene_misc_on_enter(void* context) {
     XtremeApp* app = context;
     XtremeSettings* xtreme_settings = XTREME_SETTINGS();
@@ -43,6 +52,11 @@ void xtreme_app_scene_misc_on_enter(void* context) {
     variable_item_set_current_value_index(item, xtreme_settings->dark_mode);
     variable_item_set_current_value_text(item, xtreme_settings->dark_mode ? "ON" : "OFF");
 
+    item = variable_item_list_add(
+        var_item_list, "Exp. Left Handed", 2, xtreme_app_scene_misc_left_handed_changed, app);
+    variable_item_set_current_value_index(item, xtreme_settings->left_handed);
+    variable_item_set_current_value_text(item, xtreme_settings->left_handed ? "ON" : "OFF");
+
     variable_item_list_add(var_item_list, "Change Device Name", 0, NULL, app);
 
     variable_item_list_set_enter_callback(
diff --git a/applications/services/gui/canvas.c b/applications/services/gui/canvas.c
index f2a5f359f..eadbd4834 100644
--- a/applications/services/gui/canvas.c
+++ b/applications/services/gui/canvas.c
@@ -27,6 +27,8 @@ Canvas* canvas_init() {
     // Wake up display
     u8g2_SetPowerSave(&canvas->fb, 0);
 
+    canvas_set_orientation(canvas, CanvasOrientationHorizontal);
+
     // Clear buffer and send to device
     canvas_clear(canvas);
     canvas_commit(canvas);
@@ -408,6 +410,13 @@ void canvas_set_bitmap_mode(Canvas* canvas, bool alpha) {
 
 void canvas_set_orientation(Canvas* canvas, CanvasOrientation orientation) {
     furi_assert(canvas);
+    if(XTREME_SETTINGS()->left_handed) {
+        if(orientation == CanvasOrientationHorizontal) {
+            orientation = CanvasOrientationHorizontalFlip;
+        } else if(orientation == CanvasOrientationHorizontalFlip) {
+            orientation = CanvasOrientationHorizontal;
+        }
+    }
     if(canvas->orientation != orientation) {
         switch(orientation) {
         case CanvasOrientationHorizontal:
diff --git a/applications/services/gui/gui.c b/applications/services/gui/gui.c
index 835bca2c8..8e3c432c5 100644
--- a/applications/services/gui/gui.c
+++ b/applications/services/gui/gui.c
@@ -326,6 +326,25 @@ static void gui_input(Gui* gui, InputEvent* input_event) {
             gui->ongoing_input_view_port = view_port;
         }
 
+        if(XTREME_SETTINGS()->left_handed) {
+            switch(input_event->key) {
+                case InputKeyUp:
+                    input_event->key = InputKeyDown;
+                    break;
+                case InputKeyDown:
+                    input_event->key = InputKeyUp;
+                    break;
+                case InputKeyLeft:
+                    input_event->key = InputKeyRight;
+                    break;
+                case InputKeyRight:
+                    input_event->key = InputKeyLeft;
+                    break;
+                default:
+                    break;
+            }
+        }
+
         if(view_port && view_port == gui->ongoing_input_view_port) {
             view_port_input(view_port, input_event);
         } else if(gui->ongoing_input_view_port && input_event->type == InputTypeRelease) {
diff --git a/applications/services/xtreme/settings.c b/applications/services/xtreme/settings.c
index cb9e1bb2b..8036c8d58 100644
--- a/applications/services/xtreme/settings.c
+++ b/applications/services/xtreme/settings.c
@@ -42,6 +42,7 @@ void XTREME_SETTINGS_LOAD() {
             xtreme_settings->butthurt_timer = 43200; // 12 H
             xtreme_settings->sort_dirs_first = true; // ON
             xtreme_settings->dark_mode = false; // OFF
+            xtreme_settings->left_handed = false; // OFF
         }
     }
 }
diff --git a/applications/services/xtreme/settings.h b/applications/services/xtreme/settings.h
index f1ddfd9a6..b870235ec 100644
--- a/applications/services/xtreme/settings.h
+++ b/applications/services/xtreme/settings.h
@@ -31,6 +31,7 @@ typedef struct {
     int32_t butthurt_timer;
     bool sort_dirs_first;
     bool dark_mode;
+    bool left_handed;
 } XtremeSettings;
 
 XtremeSettings* XTREME_SETTINGS();