Diff: NextionLCD.cpp

Revision:

0:ad3c413532ad

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NextionLCD.cpp	Sun Feb 04 20:36:03 2018 +0000
@@ -0,0 +1,89 @@
+#include "NextionLCD.h"
+#include "mbed.h"
+ 
+
+/* ***************************************** Public Functions ***************************************** */
+
+NextionLCD::NextionLCD(PinName Tx, PinName Rx) : lcd(Tx, Rx) {
+    lcd.baud(9600);
+    mTouch=false;
+    mRxIdx=0;
+    lcd.printf("rest%c%c%c", 0xff, 0xff, 0xff);
+    lcd.printf("rest%c%c%c", 0xff, 0xff, 0xff);
+    wait(1.0);
+    lcd.printf("sendxy=1%c%c%c", 0xff, 0xff, 0xff);
+    lcd.attach(this,&NextionLCD::RxInterrupt,Serial::RxIrq);
+}
+
+void NextionLCD::ClrScr(uint16_t color) {
+    lcd.printf("cls %d%c%c%c", color, 0xff, 0xff, 0xff);
+}
+
+void NextionLCD::DrawString(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint8_t font, uint16_t fontcolor, uint16_t backcolor, uint8_t xcenter, uint8_t ycenter, char *str) {
+    lcd.printf("xstr %d,%d,%d,%d,%d,%d,%d,%d,%d,1,\"%s\"%c%c%c", x, y, w, h, font, fontcolor, backcolor, xcenter, ycenter, str,0xff, 0xff, 0xff);
+}
+
+void NextionLCD::DrawPixel(uint16_t x, uint16_t y, uint16_t color) {
+    lcd.printf("fill %d,%d,1,1,%d%c%c%c", x, y, color, 0xff, 0xff, 0xff);
+}
+
+void NextionLCD::DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color) {
+    lcd.printf("line %d,%d,%d,%d,%d%c%c%c", x1, y1, x2, y2, color, 0xff, 0xff, 0xff);
+}
+
+void NextionLCD::DrawRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color) {
+    lcd.printf("draw %d,%d,%d,%d,%d%c%c%c", x, y, x+w, y+h, color, 0xff, 0xff, 0xff);
+}
+
+void NextionLCD::FillRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t color) {
+    lcd.printf("fill %d,%d,%d,%d,%d%c%c%c", x, y, w, h, color, 0xff, 0xff, 0xff);
+}
+
+void NextionLCD::DrawCircle(uint16_t x, uint16_t y, uint16_t r, uint16_t color) {
+    lcd.printf("cir %d,%d,%d,%d%c%c%c", x, y, r, color, 0xff, 0xff, 0xff);
+}
+
+void NextionLCD::FillCircle(uint16_t x, uint16_t y, uint16_t r, uint16_t color) {
+    lcd.printf("cirs %d,%d,%d,%d%c%c%c", x, y, r, color, 0xff, 0xff, 0xff);
+}
+
+bool NextionLCD::Touch(void) {
+    return mTouch;
+}
+
+int NextionLCD::TouchX(void) {
+    return mTouchX;
+}
+
+int NextionLCD::TouchY(void) {
+    return mTouchY;
+}
+
+
+
+/* ***************************************** Private Functions ***************************************** */
+
+
+
+
+/************************* Private Callback Functions *************************/
+void NextionLCD::RxInterrupt(void) {
+    char c;
+
+    if(lcd.readable()) {
+        c = lcd.getc(); 
+        mRxMsg[mRxIdx] = c;
+        mRxIdx++;
+        if ((mRxIdx >= 3) && (mRxMsg[mRxIdx-1] == 0xff) && (mRxMsg[mRxIdx-2] == 0xff) && (mRxMsg[mRxIdx-3] == 0xff)) {  //valid rx message
+            mRxIdx=0;
+            if(mRxMsg[0] == 0x67) {         //Touch coordinate data return
+                mTouchX = (mRxMsg[1]*256) + mRxMsg[2];
+                mTouchY = (mRxMsg[3]*256) + mRxMsg[4];
+                if(mRxMsg[5] == 0x01)
+                    mTouch = true;
+                else
+                    mTouch = false;
+            }
+        }
+    }
+}
\ No newline at end of file