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.h

Revision:
147:3494792458d9
Parent:
144:ba002c4b21b3
Child:
149:c62c4b2d6a15
--- a/RA8875.h	Thu Jun 01 11:00:40 2017 +0000
+++ b/RA8875.h	Mon Jun 12 22:15:08 2017 +0000
@@ -1163,10 +1163,36 @@
     ///
     /// @param[in] rect1 is a rectangular region.
     /// @param[in] rect2 is a second rectangular region.
-    /// @returns true if rect1 and rect2 intersect.
+    /// @returns true if any part of rect2 intersects rect1.
     ///
     bool Intersect(rect_t rect1, rect_t rect2);
     
+    /// Determine if a rectangle intersects another rectangle and provides
+    /// the area of intersection.
+    ///
+    /// @code
+    ///     +---------------------+
+    ///     | rect1               |
+    ///     |                     |
+    ///     |          +------------------+
+    ///     |          | rect3    |       |
+    ///     |          |          |       |
+    ///     +---------------------+       |
+    ///                | rect2            |
+    ///                +------------------+
+    /// @endcode
+    ///
+    /// @note that the first parameter is a pointer to a rect and the 
+    ///
+    /// @param[inout] pRect1 is a pointer to a rectangular region, and returns
+    ///             the area of intersection.
+    /// @param[in] pRect2 is a pointer to a second rectangular region.
+    /// @returns true if pRect1 and pRect2 intersect and pRect1 is written with
+    ///             the rectangle describing the intersection.
+    ///
+    bool Intersect(rect_t * rect1, const rect_t * rect2);
+    
+    
     /// Write a command to the display with a word of data.
     ///
     /// This is a high level command, and may invoke several primitives.