/*--------------------------------------------------------------------
  This file is part of the Adafruit NeoMatrix library.

  NeoMatrix is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation, either version 3 of
  the License, or (at your option) any later version.

  NeoMatrix is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with NeoMatrix.  If not, see
  <http://www.gnu.org/licenses/>.
  --------------------------------------------------------------------*/

#ifndef _ADAFRUIT_NEOMATRIX_H_
#define _ADAFRUIT_NEOMATRIX_H_

#if ARDUINO >= 100
 #include <Arduino.h>
#else
 #include <WProgram.h>
 #include <pins_arduino.h>
#endif
#include <Adafruit_GFX.h>
#include <Adafruit_NeoPixel.h>

// Matrix layout information is passed in the 'matrixType' parameter for
// each constructor (the parameter immediately following is the LED type
// from NeoPixel.h).

// These define the layout for a single 'unified' matrix (e.g. one made
// from NeoPixel strips, or a single NeoPixel shield), or for the pixels
// within each matrix of a tiled display (e.g. multiple NeoPixel shields).

#define NEO_MATRIX_TOP         0x00 // Pixel 0 is at top of matrix
#define NEO_MATRIX_BOTTOM      0x01 // Pixel 0 is at bottom of matrix
#define NEO_MATRIX_LEFT        0x00 // Pixel 0 is at left of matrix
#define NEO_MATRIX_RIGHT       0x02 // Pixel 0 is at right of matrix
#define NEO_MATRIX_CORNER      0x03 // Bitmask for pixel 0 matrix corner
#define NEO_MATRIX_ROWS        0x00 // Matrix is row major (horizontal)
#define NEO_MATRIX_COLUMNS     0x04 // Matrix is column major (vertical)
#define NEO_MATRIX_AXIS        0x04 // Bitmask for row/column layout
#define NEO_MATRIX_PROGRESSIVE 0x00 // Same pixel order across each line
#define NEO_MATRIX_ZIGZAG      0x08 // Pixel order reverses between lines
#define NEO_MATRIX_SEQUENCE    0x08 // Bitmask for pixel line order

// These apply only to tiled displays (multiple matrices):

#define NEO_TILE_TOP           0x00 // First tile is at top of matrix
#define NEO_TILE_BOTTOM        0x10 // First tile is at bottom of matrix
#define NEO_TILE_LEFT          0x00 // First tile is at left of matrix
#define NEO_TILE_RIGHT         0x20 // First tile is at right of matrix
#define NEO_TILE_CORNER        0x30 // Bitmask for first tile corner
#define NEO_TILE_ROWS          0x00 // Tiles ordered in rows
#define NEO_TILE_COLUMNS       0x40 // Tiles ordered in columns
#define NEO_TILE_AXIS          0x40 // Bitmask for tile H/V orientation
#define NEO_TILE_PROGRESSIVE   0x00 // Same tile order across each line
#define NEO_TILE_ZIGZAG        0x80 // Tile order reverses between lines
#define NEO_TILE_SEQUENCE      0x80 // Bitmask for tile line order

class Adafruit_NeoMatrix : public Adafruit_GFX, public Adafruit_NeoPixel {

 public:

  // Constructor for single matrix:
  Adafruit_NeoMatrix(int w, int h, uint8_t pin = 6,
    uint8_t matrixType = NEO_MATRIX_TOP + NEO_MATRIX_LEFT + NEO_MATRIX_ROWS,
    neoPixelType ledType = NEO_GRB + NEO_KHZ800);

  // Constructor for tiled matrices:
  Adafruit_NeoMatrix(uint8_t matrixW, uint8_t matrixH, uint8_t tX,
    uint8_t tY, uint8_t pin = 6,
    uint8_t matrixType = NEO_MATRIX_TOP + NEO_MATRIX_LEFT + NEO_MATRIX_ROWS +
                         NEO_TILE_TOP + NEO_TILE_LEFT + NEO_TILE_ROWS,
    neoPixelType ledType = NEO_GRB + NEO_KHZ800);

  void
    drawPixel(int16_t x, int16_t y, uint16_t color),
    fillScreen(uint16_t color),
    setPassThruColor(uint32_t c),
    setPassThruColor(void),
    setRemapFunction(uint16_t (*fn)(uint16_t, uint16_t)),
    Update(),
    None(),
    ScrollText(String text, uint16_t Interval = 60, String color = "#FFFFFF");

  static uint16_t
    Color(uint8_t r, uint8_t g, uint8_t b);

  uint32_t parseColor(String value);

  boolean active = false;

 private:

  const uint8_t
    type;
  const uint8_t
    matrixWidth, matrixHeight, tilesX, tilesY;
  uint16_t
    (*remapFn)(uint16_t x, uint16_t y);

  uint32_t passThruColor;
  boolean  passThruFlag = false;
  String   scrolltext;
  int16_t scrolltextpos;

  uint16_t Interval;       // milliseconds between updates
  unsigned long lastUpdate;     // last update of position

};

#endif // _ADAFRUIT_NEOMATRIX_H_