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: DisplayDefs.h

Revision:
37:f19b7e7449dc
Parent:
32:0e4f2ae512e2
Child:
42:7cbdfd2bbfc5
--- a/DisplayDefs.h	Sat Jan 25 00:00:02 2014 +0000
+++ b/DisplayDefs.h	Sat Jan 25 19:47:33 2014 +0000
@@ -17,11 +17,22 @@
     not_enough_ram,         ///< could not allocate ram for scanline
 } RetCode_t;
 
+/// type that manages locations, which is typically an x or y pixel location,
+/// which can range from -N to +N (even if the screen is 0 to +n). @see textloc_t.
+typedef int16_t loc_t;
+
+/// type that manages text locations, which are row or column values in
+/// units of character, not pixel. @see loc_t.
+typedef uint16_t textloc_t;
+
+/// type that manages dimensions of width or height, which range from 0 to N.
+typedef uint16_t dim_t;
+
 /// type that manages x,y pairs
 typedef struct
 {
-    uint16_t x;             ///< x value in the point
-    uint16_t y;             ///< y value in the point
+    loc_t x;             ///< x value in the point
+    loc_t y;             ///< y value in the point
 } point_t;
 
 /// color type definition to let the compiler help keep us honest.