fixed toxix whitespace

Author: michaelkamprath

.gitignore

@@ -37,3 +37,6 @@ test/
 .pio
 .vscode
 .travis.yml
+
+# MacOS
+.DS_Store

CHANGELOG.md

@@ -6,7 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 ### Fixed
-- The row scan timing was too long on ESP32 platforms. Adjusted this timing to remove visible blinking. 
+- The row scan timing was too long on ESP32 platforms. Adjusted this timing to remove visible blinking.
+- Fixed Color Gradient example so thatit propery compiles.
 
 ## [2.0.2]
 ### Added

examples/10x10-matrix/color_gradient-10x10/color_gradient-10x10.ino

@@ -13,13 +13,13 @@ void setup() {
 			float dx = leds.columns() - x - 1;
 			float dy = leds.rows()-y - 1;
 
-			float d_tl = max(1.0-sqrt(x*x + y*y)/MAX_DISTANCE, 0);
-			float d_bl = max(1.0-sqrt(x*x + (leds.rows()-y)*(leds.rows()))/MAX_DISTANCE, 0);
-			float d_br = max(1.0-sqrt(dx*dx + dy*dy)/MAX_DISTANCE, 0);
+			float d_tl = max(1.0-sqrt(x*x + y*y)/MAX_DISTANCE, 0.0);
+			float d_bl = max(1.0-sqrt(x*x + (leds.rows()-y)*(leds.rows()))/MAX_DISTANCE, 0.0);
+			float d_br = max(1.0-sqrt(dx*dx + dy*dy)/MAX_DISTANCE, 0.0);
 
 			RGBColorType c = RGBColor::fromRGB( d_tl*255, d_br*194, d_bl*255);
 			leds.writePixel(x, y, c);
-		} 
+		}
 	}
 	leds.stopDrawing();
 	leds.loop();

examples/16x16-matrix/color_gradient-16x16-cprg/color_gradient-16x16-cprg.ino

@@ -13,13 +13,13 @@ void setup() {
 			float dx = leds.columns() - x - 1;
 			float dy = leds.rows()-y - 1;
 
-			float d_tl = max(1.0-sqrt(x*x + y*y)/MAX_DISTANCE, 0);
-			float d_bl = max(1.0-sqrt(x*x + (leds.rows()-y)*(leds.rows()))/MAX_DISTANCE, 0);
-			float d_br = max(1.0-sqrt(dx*dx + dy*dy)/MAX_DISTANCE, 0);
-	
+			float d_tl = max(1.0-sqrt(x*x + y*y)/MAX_DISTANCE, 0.0);
+			float d_bl = max(1.0-sqrt(x*x + (leds.rows()-y)*(leds.rows()))/MAX_DISTANCE, 0.0);
+			float d_br = max(1.0-sqrt(dx*dx + dy*dy)/MAX_DISTANCE, 0.0);
+
 			RGBColorType c = RGBColor::fromRGB( d_tl*255, d_br*194, d_bl*255);
 			leds.writePixel(x, y, c);
-		} 
+		}
 	}
 	leds.stopDrawing();
 	leds.loop();

examples/8x8-matrix/color_gradient-8x8/color_gradient-8x8.ino

@@ -13,13 +13,13 @@ void setup() {
 			float dx = leds.columns() - x - 1;
 			float dy = leds.rows()-y - 1;
 
-			float d_tl = max(1.0-sqrt(x*x + y*y)/MAX_DISTANCE, 0);
-			float d_bl = max(1.0-sqrt(x*x + (leds.rows()-y)*(leds.rows()))/MAX_DISTANCE, 0);
-			float d_br = max(1.0-sqrt(dx*dx + dy*dy)/MAX_DISTANCE, 0);
+			float d_tl = max(1.0-sqrt(x*x + y*y)/MAX_DISTANCE, 0.0);
+			float d_bl = max(1.0-sqrt(x*x + (leds.rows()-y)*(leds.rows()))/MAX_DISTANCE, 0.0);
+			float d_br = max(1.0-sqrt(dx*dx + dy*dy)/MAX_DISTANCE, 0.0);
 
 			RGBColorType c = RGBColor::fromRGB( d_tl*255, d_br*194, d_bl*255);
 			leds.writePixel(x, y, c);
-		} 
+		}
 	}
 	leds.stopDrawing();
 	leds.loop();

platformio.ini

@@ -1,13 +1,13 @@
-; This PlatformIO onfiguration is for development on this library only, 
-; not for usage of this library in other projects. 
+; This PlatformIO onfiguration is for development on this library only,
+; not for usage of this library in other projects.
 
 [platformio]
 src_dir = examples/16x16-matrix/color_gradient-16x16-cprg
 default_envs = teensy40
 lib_dir = .
 
 [common]
-lib_deps = 
+lib_deps =
 	Adafruit GFX Library
 	Adafruit BusIO
 	SPI
@@ -17,7 +17,7 @@ lib_deps =
 platform = teensy
 board = teensy40
 framework = arduino
-lib_deps = 
+lib_deps =
 	TimerThree
 	${common.lib_deps}
 build_flags = -Wno-unknown-pragmas
@@ -26,7 +26,7 @@ build_flags = -Wno-unknown-pragmas
 platform = teensy
 board = teensy31
 framework = arduino
-lib_deps = 
+lib_deps =
 	TimerThree
 	${common.lib_deps}
 build_flags = -Wno-unknown-pragmas
@@ -87,6 +87,6 @@ build_flags = -Wno-unknown-pragmas
 
 ; SERIAL MONITOR OPTIONS
 ; Monitor and upload port is the same by default
-;monitor_port = 
+;monitor_port =
 ; Serial monitor baud rate
 monitor_speed = 9600

src/BaseLEDMatrix.cpp

@@ -2,17 +2,17 @@
 //     Copyright (C) 2017 Michael Kamprath
 //
 //     This file is part of Shift Register LED Matrix Project.
-// 
+//
 //     Shift Register LED Matrix Project is free software: you can redistribute it and/or modify
 //     it under the terms of the GNU General Public License as published by
 //     the Free Software Foundation, either version 3 of the License, or
 //     (at your option) any later version.
-// 
+//
 //     Shift Register LED Matrix Project 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 General Public License for more details.
-// 
+//
 //     You should have received a copy of the GNU General Public License
 //     along with Shift Register LED Matrix Project.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -441,7 +441,7 @@ void BaseLEDMatrix::startScanning(void) {
 	pmc_enable_periph_clk(ID_TC7);	 // enable peripheral clock TC7
 
 	/* we want wavesel 01 with RC */
-	TC_Configure(/* clock */ TC2,/* channel */ 1, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK2); 
+	TC_Configure(/* clock */ TC2,/* channel */ 1, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK2);
 	TC_SetRC(TC2, 1, 1000);
 	TC_Start(TC2, 1);
 

src/BaseLEDMatrix.h

@@ -2,17 +2,17 @@
 //     Copyright (C) 2017 Michael Kamprath
 //
 //     This file is part of Shift Register LED Matrix Project.
-// 
+//
 //     Shift Register LED Matrix Project is free software: you can redistribute it and/or modify
 //     it under the terms of the GNU General Public License as published by
 //     the Free Software Foundation, either version 3 of the License, or
 //     (at your option) any later version.
-// 
+//
 //     Shift Register LED Matrix Project 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 General Public License for more details.
-// 
+//
 //     You should have received a copy of the GNU General Public License
 //     along with Shift Register LED Matrix Project.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -35,13 +35,13 @@ class BaseLEDMatrix : public TimerAction {
 	typedef enum {
 		// the left most column in the hardware and MSB in the shift register chain is column 0
 		LED_BIG_ENDIAN,
-		
-		// The columns are laid out in 8 column "bytes" with column 0 being the left most 
-		// bit in the right most byte. Column 8 would be the left most bit in the second 
+
+		// The columns are laid out in 8 column "bytes" with column 0 being the left most
+		// bit in the right most byte. Column 8 would be the left most bit in the second
 		// to the right byte.
 		LED_LITTLE_ENDIAN_8
 	} DeviceBitEndian;
-	
+
 private:
 	unsigned int _rows;
 	unsigned int _columns;
@@ -54,37 +54,37 @@ class BaseLEDMatrix : public TimerAction {
 	unsigned int _interFrameOffTimeInterval;
 	unsigned int _blankLevel;
 	DeviceBitEndian _bitEndian;
-	 
+
 	bool _columnControlBitOn;
 	bool _rowControlBitOn;
-		
+
 	LEDMatrixBits **_curScreenBitFrames;
 	LEDMatrixBits **_screenBitFrames;
 	LEDMatrixBits *_allOffBits;
-	
+
 	bool _screenBitFrameToggle;
 	bool _interFrameTransmitOffToggle;
-	
+
 	unsigned int _scanPass;
 	unsigned int _scanRow;
 	int _isDrawingCount;
 
 	SPIConnection	_spi;
 	int _blankPin;
-	
+
 	void shiftOutControlRow( int row, int scanPass );
-	
+
 protected:
 	unsigned int controlRows() const          			{ return _controlRows; }
 	unsigned int controlColumns() const       			{ return _controlColumns; }
 	unsigned int rowGroups() const						{ return _rowGroups; }
 	unsigned int columnBitWidth() const					{ return _columnBitWidth; }
 	virtual void action();
-	
+
 	virtual void generateFrameBits(LEDMatrixBits& frameBits, size_t frame ) const = 0;
 	virtual bool matrixNeedsUpdate(void) const = 0;
 	virtual void matrixHasBeenUpdated(void) = 0;
-	
+
 	virtual unsigned int baseIntervalMultiplier( size_t frame ) const;
 public:
 
@@ -93,26 +93,26 @@ class BaseLEDMatrix : public TimerAction {
 	 *
 	 *	@param rows the number of  rows in the LED matrix.
 	 *	@param columns the number of columns in the LED matrix.
-	 *	@param controlRows the number of powered rows in the LED matrix. Control rows are 
+	 *	@param controlRows the number of powered rows in the LED matrix. Control rows are
 	 *	            expected to have shared power to the LEDs.
 	 *	@param controlColumns the number of control columns in the LED matrix.
-	 *	@param columnBitWidth the number of bits needed to represent one physical LED in 
+	 *	@param columnBitWidth the number of bits needed to represent one physical LED in
 	 *              a column. E.g., and RGB LED needs 3 bits.
 	 *	@param pwmCycleScanCount the number of row scans needed for the PWM cycle of the matrix.
 	 *	@param columnControlBitOn what value a column bit should be set to to the column on.
-	 *	@param rowControlBitOn what value a row bit should be set to to turn the row on. 
-	 *               E.g. of the row is common anode and a PNP transistor is being use 
+	 *	@param rowControlBitOn what value a row bit should be set to to turn the row on.
+	 *               E.g. of the row is common anode and a PNP transistor is being use
 	 *               to switch power to the row, the row bit likely needs to be LOW to
 	 *               cause the transistor to power the row.
 	 *	@param interFrameOffTimeMicros Controls whether an all-off signal is sent to the
-	 *				 shift registers in between row updates in order to mitigate LED 
-	 *				 ghosting. A value of 0 indicates that no all-off signal should be 
+	 *				 shift registers in between row updates in order to mitigate LED
+	 *				 ghosting. A value of 0 indicates that no all-off signal should be
 	 *				 sent. A value greater than 0 indicates how many microseconds should
-	 *				 be waited until the next row update gets shifted out. Usually a value 
+	 *				 be waited until the next row update gets shifted out. Usually a value
 	 *				 less than 3 microseconds is sufficient for most slow row power
 	 *				 switching.
 	 *  @param slavePin which pin is used for the latch signal.
-	 *  @param maxSPISpeed The requested max SPI speed. The board typically picks the 
+	 *  @param maxSPISpeed The requested max SPI speed. The board typically picks the
 	 *				smaller of this and it's own max.
 	 */
 	BaseLEDMatrix(
@@ -126,48 +126,48 @@ class BaseLEDMatrix : public TimerAction {
 			bool rowControlBitOn = LOW,
 			unsigned int interFrameOffTimeMicros = 0,
 #if defined( ESP8266 )
-			int slavePin = D8	
+			int slavePin = D8
 #elif defined( ESP32 )
-			int slavePin = 5	
+			int slavePin = 5
 #else
-			int slavePin = 10	
+			int slavePin = 10
 #endif
 			,
 			DeviceBitEndian bitEndian = LED_BIG_ENDIAN,
 			unsigned long maxSPISpeed = 18000000
 		);
 	virtual ~BaseLEDMatrix();
-	
+
 	/**
 	 * Should be called before any operations against this object is performed. Child
-	 * classes implementing matrix-type specific implementation should call this parent 
+	 * classes implementing matrix-type specific implementation should call this parent
 	 * class implementation of setup() before doing their own setup work.
 	 */
-	virtual void setup();  
+	virtual void setup();
 
 	void enableBlanking(int blankPin = 9 );
 	void disableBlanking( void );
 	void blank(void);
 	void unblank(void);
 
 	/**
-	 * Increments the draw lock. While a matrix has a non-zero draw lock, any changes to 
+	 * Increments the draw lock. While a matrix has a non-zero draw lock, any changes to
 	 * the image() buffer will not be pass through to the matrix scan buffer.
 	 */
 	void startDrawing(void)   			{ _isDrawingCount++; }
-	
+
 	/**
-	 * Decrements the draw lock. All calls to startDrawing() should be balanced with a 
+	 * Decrements the draw lock. All calls to startDrawing() should be balanced with a
 	 * call to stopDrawing().
 	 */
 	void stopDrawing(void)    			{ _isDrawingCount--; if (_isDrawingCount < 0) { _isDrawingCount = 0; }}
-	
-	
+
+
 	/**
 	 * Returns true is a draw lock is active.
 	 */
 	bool isDrawing(void) const			{ return (_isDrawingCount > 0); }
-	
+
 	/**
 	 * Returns the number of rows in this matrix.
 	 *
@@ -183,7 +183,7 @@ class BaseLEDMatrix : public TimerAction {
 	unsigned int columns() const       			{ return _columns; }
 
 	/**
-	 * Begins the row scan timer interrupt, which in turn starts sending data through the 
+	 * Begins the row scan timer interrupt, which in turn starts sending data through the
 	 * SPI interface to the LED matrix.
 	 */
 	void startScanning(void);
@@ -196,7 +196,7 @@ class BaseLEDMatrix : public TimerAction {
 	DeviceBitEndian bitEndian(void) const			{ return _bitEndian; }
 
 	/**
-	 * This methods are "private" to this class but have to be declared public so 
+	 * This methods are "private" to this class but have to be declared public so
 	 * the timer interrupt can access them.
 	 */
 	bool doInterFrameTransmitOff( void ) const;