LEDMatrix - A library to manipulate 2D arrays, and output the…

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A library to manipulate 2D arrays, and output them to an LED Dot Matrix Display. The display must be wired up using a shift register combined with a nor latch.

Matrix.h@0:1deae5ffe9ed, 2012-02-13 (annotated)

Committer:: EricWieser
Date:: Mon Feb 13 22:19:58 2012 +0000
Revision:: 0:1deae5ffe9ed
Child:: 1:44819562ea31

Who changed what in which revision?

User	Revision	Line number	New contents of line
EricWieser	0:1deae5ffe9ed	1	#include <cassert>
EricWieser	0:1deae5ffe9ed	2	#include "Locations.h"
EricWieser	0:1deae5ffe9ed	3
EricWieser	0:1deae5ffe9ed	4	#ifndef Matrix_H
EricWieser	0:1deae5ffe9ed	5	#define Matrix_H
EricWieser	0:1deae5ffe9ed	6	template <class T> class Matrix {
EricWieser	0:1deae5ffe9ed	7	private:
EricWieser	0:1deae5ffe9ed	8	T* _data;
EricWieser	0:1deae5ffe9ed	9	int _width;
EricWieser	0:1deae5ffe9ed	10	int _height;
EricWieser	0:1deae5ffe9ed	11
EricWieser	0:1deae5ffe9ed	12	T& item(int x, int y) const{
EricWieser	0:1deae5ffe9ed	13	return _data[y*_width + x];
EricWieser	0:1deae5ffe9ed	14	}
EricWieser	0:1deae5ffe9ed	15
EricWieser	0:1deae5ffe9ed	16	void init() {
EricWieser	0:1deae5ffe9ed	17	_data = new T[_width*_height];
EricWieser	0:1deae5ffe9ed	18	}
EricWieser	0:1deae5ffe9ed	19	public:
EricWieser	0:1deae5ffe9ed	20	Matrix(int width, int height) : _width(width), _height(height) {
EricWieser	0:1deae5ffe9ed	21	init();
EricWieser	0:1deae5ffe9ed	22	}
EricWieser	0:1deae5ffe9ed	23
EricWieser	0:1deae5ffe9ed	24	template <int w, int h>
EricWieser	0:1deae5ffe9ed	25	Matrix(T (&array)[h][w]) : _width(w), _height(h) {
EricWieser	0:1deae5ffe9ed	26	init();
EricWieser	0:1deae5ffe9ed	27
EricWieser	0:1deae5ffe9ed	28	for(int x = 0; x < w; x++) {
EricWieser	0:1deae5ffe9ed	29	for(int y = 0; y < h; y++) {
EricWieser	0:1deae5ffe9ed	30	item(x, y) = array[y][x];
EricWieser	0:1deae5ffe9ed	31	}
EricWieser	0:1deae5ffe9ed	32	}
EricWieser	0:1deae5ffe9ed	33	}
EricWieser	0:1deae5ffe9ed	34
EricWieser	0:1deae5ffe9ed	35	Matrix(const Matrix<T> &that) : _width(that._width), _height(that._height) {
EricWieser	0:1deae5ffe9ed	36	init();
EricWieser	0:1deae5ffe9ed	37
EricWieser	0:1deae5ffe9ed	38	for(int i = 0; i < _width; i++) {
EricWieser	0:1deae5ffe9ed	39	for(int j = 0; j < _height; j++) {
EricWieser	0:1deae5ffe9ed	40	this->item(i, j) = that.item(i, j);
EricWieser	0:1deae5ffe9ed	41	}
EricWieser	0:1deae5ffe9ed	42	}
EricWieser	0:1deae5ffe9ed	43	}
EricWieser	0:1deae5ffe9ed	44
EricWieser	0:1deae5ffe9ed	45	~Matrix() {
EricWieser	0:1deae5ffe9ed	46	delete [] _data;
EricWieser	0:1deae5ffe9ed	47	}
EricWieser	0:1deae5ffe9ed	48
EricWieser	0:1deae5ffe9ed	49	int getWidth() const { return _width; }
EricWieser	0:1deae5ffe9ed	50	int getHeight() const { return _height; }
EricWieser	0:1deae5ffe9ed	51
EricWieser	0:1deae5ffe9ed	52	bool contains(int x, int y) const {
EricWieser	0:1deae5ffe9ed	53	return x >= 0 && x < _width && y >= 0 && y < _height;
EricWieser	0:1deae5ffe9ed	54	}
EricWieser	0:1deae5ffe9ed	55	bool containsRect(int x, int y, int w, int h) const {
EricWieser	0:1deae5ffe9ed	56	return x >= 0 && x + w <= _width && y >= 0 && y + h <= _height;
EricWieser	0:1deae5ffe9ed	57	}
EricWieser	0:1deae5ffe9ed	58
EricWieser	0:1deae5ffe9ed	59	T& operator() (const int x, const int y) {
EricWieser	0:1deae5ffe9ed	60	assert(contains(x, y));
EricWieser	0:1deae5ffe9ed	61	return item(x, y);
EricWieser	0:1deae5ffe9ed	62	}
EricWieser	0:1deae5ffe9ed	63
EricWieser	0:1deae5ffe9ed	64
EricWieser	0:1deae5ffe9ed	65	const T& operator() (const int x, const int y) const {
EricWieser	0:1deae5ffe9ed	66	assert(contains(x, y));
EricWieser	0:1deae5ffe9ed	67	return item(x, y);
EricWieser	0:1deae5ffe9ed	68	}
EricWieser	0:1deae5ffe9ed	69
EricWieser	0:1deae5ffe9ed	70	T& operator[] (const IntLocation p) {
EricWieser	0:1deae5ffe9ed	71	return (*this)(p.x, p.y);
EricWieser	0:1deae5ffe9ed	72	}
EricWieser	0:1deae5ffe9ed	73	const T& operator[] (const IntLocation p) const {
EricWieser	0:1deae5ffe9ed	74	return (*this)(p.x, p.y);
EricWieser	0:1deae5ffe9ed	75	}
EricWieser	0:1deae5ffe9ed	76
EricWieser	0:1deae5ffe9ed	77
EricWieser	0:1deae5ffe9ed	78	Matrix<T> slice(int x, int y, int w, int h) const {
EricWieser	0:1deae5ffe9ed	79	assert(containsRect(x, y, w, h));
EricWieser	0:1deae5ffe9ed	80
EricWieser	0:1deae5ffe9ed	81	Matrix<T> b = Matrix<T>(w, h);
EricWieser	0:1deae5ffe9ed	82
EricWieser	0:1deae5ffe9ed	83	for(int i = 0; i < w; i++) {
EricWieser	0:1deae5ffe9ed	84	for(int j = 0; j < h; j++) {
EricWieser	0:1deae5ffe9ed	85	b.item(i, j) = this->item(x + i, y + j);
EricWieser	0:1deae5ffe9ed	86	}
EricWieser	0:1deae5ffe9ed	87	}
EricWieser	0:1deae5ffe9ed	88	return b;
EricWieser	0:1deae5ffe9ed	89	}
EricWieser	0:1deae5ffe9ed	90
EricWieser	0:1deae5ffe9ed	91
EricWieser	0:1deae5ffe9ed	92	void overlay(const Matrix<T> &that, int x, int y) {
EricWieser	0:1deae5ffe9ed	93	assert(containsRect(x, y, that._width, that._height));
EricWieser	0:1deae5ffe9ed	94
EricWieser	0:1deae5ffe9ed	95	for(int i = 0; i < that._width; i++) {
EricWieser	0:1deae5ffe9ed	96	for(int j = 0; j < that._height; j++) {
EricWieser	0:1deae5ffe9ed	97	this->item(i, j) = that.item(x + i, y + j);
EricWieser	0:1deae5ffe9ed	98	}
EricWieser	0:1deae5ffe9ed	99	}
EricWieser	0:1deae5ffe9ed	100	}
EricWieser	0:1deae5ffe9ed	101
EricWieser	0:1deae5ffe9ed	102	void overlay(const Matrix<T> &that, int sx, int sy, int w, int h, int dx, int dy) {
EricWieser	0:1deae5ffe9ed	103	assert(containsRect(dx, dy, w, h) && that.containsRect(sx, sy, w, h));
EricWieser	0:1deae5ffe9ed	104
EricWieser	0:1deae5ffe9ed	105	for(int i = 0; i < w; i++) {
EricWieser	0:1deae5ffe9ed	106	for(int j = 0; j < h; j++) {
EricWieser	0:1deae5ffe9ed	107	this->item(dx + i, dy + j) = that.item(sx + i, sy + j);
EricWieser	0:1deae5ffe9ed	108	}
EricWieser	0:1deae5ffe9ed	109	}
EricWieser	0:1deae5ffe9ed	110	}
EricWieser	0:1deae5ffe9ed	111
EricWieser	0:1deae5ffe9ed	112	T* column(int x) const {
EricWieser	0:1deae5ffe9ed	113	assert(x >= 0 && x <= _width);
EricWieser	0:1deae5ffe9ed	114	T* col = new T[_height];
EricWieser	0:1deae5ffe9ed	115	for(int j = 0; j < _height; j++) {
EricWieser	0:1deae5ffe9ed	116	col[j] = this->item(x, j);
EricWieser	0:1deae5ffe9ed	117	}
EricWieser	0:1deae5ffe9ed	118	return col;
EricWieser	0:1deae5ffe9ed	119	}
EricWieser	0:1deae5ffe9ed	120	T* row(int y) const {
EricWieser	0:1deae5ffe9ed	121	assert(y >= 0 && y <= _height);
EricWieser	0:1deae5ffe9ed	122	T* row = new T[_width];
EricWieser	0:1deae5ffe9ed	123	for(int i = 0; i < _width; i++) {
EricWieser	0:1deae5ffe9ed	124	row[i] = this->item(i, y);
EricWieser	0:1deae5ffe9ed	125	}
EricWieser	0:1deae5ffe9ed	126	return row;
EricWieser	0:1deae5ffe9ed	127	}
EricWieser	0:1deae5ffe9ed	128
EricWieser	0:1deae5ffe9ed	129	void clear() {
EricWieser	0:1deae5ffe9ed	130	for(int x = 0; x < _width; x++)
EricWieser	0:1deae5ffe9ed	131	for(int y = 0; y < _width; y++)
EricWieser	0:1deae5ffe9ed	132	(*this)(x, y) = T();
EricWieser	0:1deae5ffe9ed	133	}
EricWieser	0:1deae5ffe9ed	134	};
EricWieser	0:1deae5ffe9ed	135	#endif

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Type:	Library
Created:	13 Feb 2012
Imports:	92
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	0
Followers:	4

Matrix.h@0:1deae5ffe9ed, 2012-02-13 (annotated)

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