From 97efa76200c4ff2e3c804fff6931e1c21369ab46 Mon Sep 17 00:00:00 2001
From: Antoine Weill--Duflos <antoine@haply.co>
Date: Sun, 1 Dec 2024 15:32:45 -0500
Subject: [PATCH] add flip_y

---
 esphome/components/inkplate6/display.py   | 4 +++-
 esphome/components/inkplate6/inkplate.cpp | 3 +++
 esphome/components/inkplate6/inkplate.h   | 3 +++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/esphome/components/inkplate6/display.py b/esphome/components/inkplate6/display.py
index 8fe7f7d41d..05cd8705b6 100644
--- a/esphome/components/inkplate6/display.py
+++ b/esphome/components/inkplate6/display.py
@@ -35,7 +35,7 @@ CONF_POWERUP_PIN = "powerup_pin"
 CONF_SPH_PIN = "sph_pin"
 CONF_SPV_PIN = "spv_pin"
 CONF_VCOM_PIN = "vcom_pin"
-
+CONF_FLIP_Y = "flip_y"
 
 inkplate6_ns = cg.esphome_ns.namespace("inkplate6")
 Inkplate6 = inkplate6_ns.class_(
@@ -62,6 +62,7 @@ CONFIG_SCHEMA = cv.All(
         {
             cv.GenerateID(): cv.declare_id(Inkplate6),
             cv.Optional(CONF_GREYSCALE, default=False): cv.boolean,
+            cv.Optional(CONF_FLIP_Y, default=False): cv.boolean,
             cv.Optional(CONF_PARTIAL_UPDATING, default=True): cv.boolean,
             cv.Optional(CONF_FULL_UPDATE_EVERY, default=10): cv.uint32_t,
             cv.Optional(CONF_MODEL, default="inkplate_6"): cv.enum(
@@ -126,6 +127,7 @@ async def to_code(config):
         cg.add(var.set_writer(lambda_))
 
     cg.add(var.set_greyscale(config[CONF_GREYSCALE]))
+    cg.add(var.set_flip_y(config[CONF_FLIP_Y]))
     cg.add(var.set_partial_updating(config[CONF_PARTIAL_UPDATING]))
     cg.add(var.set_full_update_every(config[CONF_FULL_UPDATE_EVERY]))
 
diff --git a/esphome/components/inkplate6/inkplate.cpp b/esphome/components/inkplate6/inkplate.cpp
index f4d0fedf83..eb853d9aec 100644
--- a/esphome/components/inkplate6/inkplate.cpp
+++ b/esphome/components/inkplate6/inkplate.cpp
@@ -156,6 +156,9 @@ void HOT Inkplate6::draw_absolute_pixel_internal(int x, int y, Color color) {
   if (x >= this->get_width_internal() || y >= this->get_height_internal() || x < 0 || y < 0)
     return;
 
+  if (this->flip_y_)
+    y = this->get_height_internal() - y - 1;
+
   if (this->greyscale_) {
     int x1 = x / 2;
     int x_sub = x % 2;
diff --git a/esphome/components/inkplate6/inkplate.h b/esphome/components/inkplate6/inkplate.h
index ca2ad46f1e..ce3683ea09 100644
--- a/esphome/components/inkplate6/inkplate.h
+++ b/esphome/components/inkplate6/inkplate.h
@@ -92,6 +92,8 @@ class Inkplate6 : public display::DisplayBuffer, public i2c::I2CDevice {
     if (this->is_ready())
       this->initialize_();
   }
+  void set_flip_y(bool flip_y) { this->flip_y_ = flip_y; }
+
   void set_partial_updating(bool partial_updating) { this->partial_updating_ = partial_updating; }
   void set_full_update_every(uint32_t full_update_every) { this->full_update_every_ = full_update_every; }
 
@@ -221,6 +223,7 @@ class Inkplate6 : public display::DisplayBuffer, public i2c::I2CDevice {
 
   bool block_partial_{true};
   bool greyscale_;
+  bool flip_y_;
   bool partial_updating_;
 
   InkplateModel model_;