oxyii · September 13, 2021 20:29 · Sep 13, 2021
diff --git a/qrcode_espi.cpp b/qrcode_espi.cpp
@@ -0,0 +1,44 @@
+#include <Arduino.h>
+#include "qrencode.h"
+#include "qrcode_espi.h"
+
+
+QRcode_eSPI::QRcode_eSPI(TFT_eSPI *display) {
+    this->display = display;
+}
+
+
+void QRcode_eSPI::init() {
+    //display->init();
+    this->screenwidth = display->width();
+    this->screenheight = display->height();
+    display->fillScreen(TFT_WHITE);
+    int min = screenwidth;
+    if (screenheight<screenwidth)
+        min = screenheight;
+    multiply = min/WD;
+    offsetsX = (screenwidth-(WD*multiply))/2;
+    offsetsY = (screenheight-(WD*multiply))/2;
+}
+
+void QRcode_eSPI::screenwhite() {
+    display->fillScreen(TFT_WHITE);
+}
+
+void QRcode_eSPI::screenupdate() {
+    // No hay que hacer nada
+}
+
+void QRcode_eSPI::drawPixel(int x, int y, int color) {
+    if(color==1) {
+        color = TFT_BLACK;
+    } else {
+        color = TFT_WHITE;
+    }
+    display->drawPixel(x,y,color);
+    if (this->multiply>1) {
+        display->drawPixel(x+1,y,color);
+        display->drawPixel(x+1,y+1,color);
+        display->drawPixel(x,y+1,color);
+    }
+}
diff --git a/qrcode_espi.h b/qrcode_espi.h
@@ -0,0 +1,26 @@
+#ifndef ESPQRST7735_H
+#define ESPQRST7735_H
+/* ESP_QRcode. tft version for ST7735
+ * include this .h if you have a TFT display
+ */
+
+#define TFTDISPLAY
+
+#include <TFT_eSPI.h>
+#include <SPI.h>
+#include "qrcode.h"
+
+class QRcode_eSPI : public QRcodeDisplay
+{
+	private:
+		TFT_eSPI *display;
+        void drawPixel(int x, int y, int color);
+	public:
+
+		QRcode_eSPI(TFT_eSPI *display);
+
+		void init();
+		void screenwhite();
+		void screenupdate();
+};
+#endif