David Smart / RA8875 Featured

Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.

Dependents:   FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more

Fork of SPI_TFT by Peter Drescher

See Components - RA8875 Based Display

Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.

Offline Help Manual (Windows chm)

/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)

Diff: RA8875.cpp

Revision:
144:ba002c4b21b3
Parent:
143:e872d65a710d
Child:
146:373d59f08357
--- a/RA8875.cpp	Sun Mar 19 22:11:04 2017 +0000
+++ b/RA8875.cpp	Sat May 06 20:14:48 2017 +0000
@@ -1406,6 +1406,31 @@
     return noerror;
 }
 
+
+RetCode_t RA8875::ThickLine(point_t p1, point_t p2, dim_t thickness, color_t color)
+{
+    if (thickness == 1) {
+        line(p1,p2, color);
+    } else {
+        int dx = abs(p2.x-p1.x), sx = p1.x<p2.x ? 1 : -1;
+        int dy = abs(p2.y-p1.y), sy = p1.y<p2.y ? 1 : -1;
+        int err = (dx>dy ? dx : -dy)/2, e2;
+        
+        for (;;) {
+            fillcircle(p1.x, p1.y, thickness/2, color);
+            if (p1.x==p2.x && p1.y==p2.y) 
+                break;
+            e2 = err;
+            if (e2 >-dx) 
+                { err -= dy; p1.x += sx; }
+            if (e2 < dy) 
+                { err += dx; p1.y += sy; }
+        }        
+    }
+    return noerror;
+}
+
+
 //
 // Rectangle functions all mostly helpers to the basic rectangle function
 //