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:
147:3494792458d9
Parent:
146:373d59f08357
Child:
148:33e99de1aca6
--- a/RA8875.cpp	Thu Jun 01 11:00:40 2017 +0000
+++ b/RA8875.cpp	Mon Jun 12 22:15:08 2017 +0000
@@ -525,20 +525,47 @@
 
 bool RA8875::Intersect(rect_t rect1, rect_t rect2)
 {
+#if 1
+    // If one rectangle is on left side of other
+    if (max(rect1.p1.x,rect1.p2.x) < min(rect2.p1.x,rect2.p2.x)
+        || min(rect1.p1.x, rect1.p2.x) > max(rect2.p1.x, rect2.p2.x))
+        return false;
+    // If one rectangle is above other
+    if (max(rect1.p1.y, rect1.p2.y) < min(rect2.p1.y, rect2.p2.y)
+        || min(rect1.p1.y, rect1.p2.y) > max(rect2.p1.y, rect2.p2.y))
+        return false;
+    return true;            // all that's left is they overlap
+#else
     point_t bl, tr;
-    
     bl.x = rect2.p1.x;
     bl.y = rect2.p2.y;
     tr.x = rect2.p2.x;
     tr.y = rect2.p1.y;
     if (Intersect(rect1, rect2.p1) || Intersect(rect1, rect2.p2)
-    || Intersect(rect1, bl) || Intersect(rect1, tr))
+        || Intersect(rect1, bl) || Intersect(rect1, tr))
         return true;
     else
         return false;
+#endif
 }
 
 
+bool RA8875::Intersect(rect_t * pRect1, const rect_t * pRect2)
+{
+    if (Intersect(*pRect1, *pRect2)) {
+        rect_t iSect;
+        
+        iSect.p1.x = max(pRect1->p1.x, pRect2->p1.x);
+        iSect.p1.y = max(pRect1->p1.y, pRect2->p1.y);
+        iSect.p2.x = min(pRect1->p2.x, pRect2->p2.x);
+        iSect.p2.y = min(pRect1->p2.y, pRect2->p2.y);
+        *pRect1 = iSect;
+        return true;
+    } else {
+        return false;
+    }
+}
+
 
 RetCode_t RA8875::WriteCommandW(uint8_t command, uint16_t data)
 {