A wrapper Class library for using the touch lcd on the DISCO-F469NI Development board. More...

#include <DISCOF469LCD.h>

Public Member Functions
	DISCOF469LCD (void)
	Create a DISCOF469LCD object for using the graphics LCD on the DISCO-F469NI Development board.
void	Clear (uint32_t Color)
	Clears the LCD by filling it with the specified color pixels.
void	DrawPixel (uint16_t Xpos, uint16_t Ypos, uint32_t Color)
	Draws a pixel on the LCD.
uint32_t	ReadPixel (uint16_t Xpos, uint16_t Ypos)
	Reads the color of an LCD pixel.
void	DrawLine (uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint32_t Color)
	Draws a line on the LCD.
void	DrawRectangle (uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint32_t Color)
	Draws a rectangle on the LCD.
void	FillRectangle (uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint32_t Color)
	Draws a filled rectangle on the LCD.
void	DrawCircle (uint16_t Xpos, uint16_t Ypos, uint16_t Radius, uint32_t Color)
	Draws a circle on the LCD.
void	FillCircle (uint16_t Xpos, uint16_t Ypos, uint16_t Radius, uint32_t Color)
	Draws a filled circle on the LCD.
void	DrawEllipse (uint16_t Xpos, uint16_t Ypos, uint16_t XRadius, uint16_t YRadius, uint32_t Color)
	Draws an ellipse on the LCD.
void	FillEllipse (uint16_t Xpos, uint16_t Ypos, uint16_t XRadius, uint16_t YRadius, uint32_t Color)
	Draws a filled ellipse on the LCD.
void	DrawStringAtXY (uint16_t Xpos, uint16_t Ypos, uint8_t FontSize, uint32_t TextColor, uint32_t BackColor, char *Text)
	Displays a string on the LCD at Xpos,Ypos.
void	DrawStringAtLine (uint16_t Line, uint8_t FontSize, uint32_t TextColor, uint32_t BackColor, uint8_t Mode, char *Text)
	Displays a string on the LCD at a certain line based on the font size.
uint8_t	Touches (void)
	Determines if the touchscreen is being touched or not.
void	GetTouch1 (uint16_t x, uint16_t y)
	Gets the x and y coordinates of the first touch on the touchscreen.
void	GetTouch2 (uint16_t x, uint16_t y)
	Gets the x and y coordinates of the second touch on the touchscreen.

Detailed Description

A wrapper Class library for using the touch lcd on the DISCO-F469NI Development board.

The class uses the existing BSP class created by Team ST.

Example:

 #include "mbed.h"
 #include "DISCOF469LCD.h"
 
 DISCOF469LCD lcd;
 
 void DisplayPattern(void);
 
 int main() {
     char buf[40];               
     int numtouches;             
     bool cleared = false;
     uint16_t x1, y1, x2, y2;
 
     DisplayPattern();
     wait(4.0);
     lcd.Clear(LCD_WHITE);
     
     while(1) 
     {
         numtouches = lcd.Touches();     //read if the screen is touched
         if(numtouches > 0)              //has the screen been touched?
         {
             cleared = false;            //reset clear flag
             if(numtouches == 1)         //if one finger is on the screen
             {
                 lcd.GetTouch1(&x1, &y1);
                 sprintf(buf, "Touch 1: x=%3u y=%3u", x1, y1);
                 lcd.DrawStringAtLine(0,4,LCD_BLUE, LCD_WHITE, 0, buf);
                 lcd.FillCircle(x1, y1, 50, LCD_RED);
             }
             else if(numtouches == 2)    //if two fingers are on the screen
             {
                 lcd.GetTouch1(&x1, &y1);
                 lcd.GetTouch2(&x2, &y2);
                 sprintf(buf, "Touch 1: x=%3u y=%3u", x1, y1);
                 lcd.DrawStringAtLine(0,4,LCD_BLUE, LCD_WHITE, 0, buf);
                 sprintf(buf, "Touch 2: x=%3u y=%3u", x2, y2);
                 lcd.DrawStringAtLine(1,4,LCD_BLUE, LCD_WHITE, 0, buf);
                 lcd.FillCircle(x1, y1, 50, LCD_RED);
                 lcd.FillCircle(x2, y2, 50, LCD_BLUE);
             }
         }
         else
         {
             if(!cleared)                //if the screen hasn't been cleared 
             {
                 lcd.Clear(LCD_WHITE);   //clear the screen after fingers left screen
                 cleared = true;
             }
         }
     }
 }
 
 void DisplayPattern(void)
 {
     lcd.FillRectangle(0, 0, 50, 479,LCD_WHITE);
     lcd.FillRectangle(50, 0, 50, 479,LCD_SILVER);
     lcd.FillRectangle(100, 0, 50, 479,LCD_GRAY);
     lcd.FillRectangle(150, 0, 50, 479,LCD_BLACK);
     lcd.FillRectangle(200, 0, 50, 479,LCD_RED);
     lcd.FillRectangle(250, 0, 50, 479,LCD_MAROON);
     lcd.FillRectangle(300, 0, 50, 479,LCD_YELLOW);
     lcd.FillRectangle(350, 0, 50, 479,LCD_OLIVE);
     lcd.FillRectangle(400, 0, 50, 479,LCD_LIME);
     lcd.FillRectangle(450, 0, 50, 479,LCD_GREEN);
     lcd.FillRectangle(500, 0, 50, 479,LCD_AQUA);
     lcd.FillRectangle(550, 0, 50, 479,LCD_TEAL);
     lcd.FillRectangle(600, 0, 50, 479,LCD_BLUE);
     lcd.FillRectangle(650, 0, 50, 479,LCD_NAVY);
     lcd.FillRectangle(700, 0, 50, 479,LCD_FUCHSIA);
     lcd.FillRectangle(750, 0, 50, 479,LCD_PURPLE);
     lcd.DrawStringAtXY(0, 0, 1, LCD_WHITE, LCD_BLACK, "White");
     lcd.DrawStringAtXY(50, 0, 1, LCD_WHITE, LCD_BLACK, "Silver");
     lcd.DrawStringAtXY(100, 0, 1, LCD_WHITE, LCD_BLACK, "Gray");
     lcd.DrawStringAtXY(150, 0, 1, LCD_WHITE, LCD_BLACK, "Black");
     lcd.DrawStringAtXY(200, 0, 1, LCD_WHITE, LCD_BLACK, "Red");
     lcd.DrawStringAtXY(250, 0, 1, LCD_WHITE, LCD_BLACK, "Maroon");
     lcd.DrawStringAtXY(300, 0, 1, LCD_WHITE, LCD_BLACK, "Yellow");
     lcd.DrawStringAtXY(350, 0, 1, LCD_WHITE, LCD_BLACK, "Olive");
     lcd.DrawStringAtXY(400, 0, 1, LCD_WHITE, LCD_BLACK, "Lime");
     lcd.DrawStringAtXY(450, 0, 1, LCD_WHITE, LCD_BLACK, "Green");
     lcd.DrawStringAtXY(500, 0, 1, LCD_WHITE, LCD_BLACK, "Aqua");
     lcd.DrawStringAtXY(550, 0, 1, LCD_WHITE, LCD_BLACK, "Teal");
     lcd.DrawStringAtXY(600, 0, 1, LCD_WHITE, LCD_BLACK, "Blue");
     lcd.DrawStringAtXY(650, 0, 1, LCD_WHITE, LCD_BLACK, "Navy");
     lcd.DrawStringAtXY(700, 0, 1, LCD_WHITE, LCD_BLACK, "Fuchsia");
     lcd.DrawStringAtXY(750, 0, 1, LCD_WHITE, LCD_BLACK, "Purple");
 }

Definition at line 145 of file DISCOF469LCD.h.

Constructor & Destructor Documentation

DISCOF469LCD ( void )

Create a DISCOF469LCD object for using the graphics LCD on the DISCO-F469NI Development board.

Definition at line 6 of file DISCOF469LCD.cpp.

Member Function Documentation

void Clear ( uint32_t Color )

Clears the LCD by filling it with the specified color pixels.

Parameters:

Color Color to fill the screen with - represented in ARGB8888 color space format.

Definition at line 12 of file DISCOF469LCD.cpp.

void DrawCircle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Radius,
		uint32_t	Color
	)

Draws a circle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Radius	Circle radius
Color	Circle color in ARGB mode (8-8-8-8)

Definition at line 44 of file DISCOF469LCD.cpp.

void DrawEllipse	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	XRadius,
		uint16_t	YRadius,
		uint32_t	Color
	)

Draws an ellipse on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
XRadius	Ellipse X radius
YRadius	Ellipse Y radius
Color	Ellipse color in ARGB mode (8-8-8-8)

Definition at line 56 of file DISCOF469LCD.cpp.

void DrawLine	(	uint16_t	x1,
		uint16_t	y1,
		uint16_t	x2,
		uint16_t	y2,
		uint32_t	Color
	)

Draws a line on the LCD.

Parameters:

x1	Point 1 X position
y1	Point 1 Y position
x2	Point 2 X position
y2	Point 2 Y position
Color	Line color in ARGB mode (8-8-8-8)

Definition at line 26 of file DISCOF469LCD.cpp.

void DrawPixel	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint32_t	Color
	)

Draws a pixel on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Color	Pixel color in ARGB mode (8-8-8-8)

Definition at line 16 of file DISCOF469LCD.cpp.

void DrawRectangle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Width,
		uint16_t	Height,
		uint32_t	Color
	)

Draws a rectangle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Width	Rectangle width
Height	Rectangle height
Color	Rectangle color in ARGB mode (8-8-8-8)

Definition at line 32 of file DISCOF469LCD.cpp.

void DrawStringAtLine	(	uint16_t	Line,
		uint8_t	FontSize,
		uint32_t	TextColor,
		uint32_t	BackColor,
		uint8_t	Mode,
		char *	Text
	)

Displays a string on the LCD at a certain line based on the font size.

Parameters:

Line	Line where to display the string
FontSize	The size of the text (0 - 4)
TextColor	The text foreground color
BackColor	The text background color
Mode	Display mode (0=LEFT mode; 1=CENTER mode; 2=RIGHT mode)
Text	String to display on LCD

Definition at line 85 of file DISCOF469LCD.cpp.

void DrawStringAtXY	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint8_t	FontSize,
		uint32_t	TextColor,
		uint32_t	BackColor,
		char *	Text
	)

Displays a string on the LCD at Xpos,Ypos.

Parameters:

Xpos	X position (in pixel)
Ypos	Y position (in pixel)
FontSize	The size of the text (0 - 4)
TextColor	The text foreground color
BackColor	The text background color
Text	String to display on LCD

Definition at line 69 of file DISCOF469LCD.cpp.

void FillCircle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Radius,
		uint32_t	Color
	)

Draws a filled circle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Radius	Circle radius
Color	Circle color in ARGB mode (8-8-8-8)

Definition at line 50 of file DISCOF469LCD.cpp.

void FillEllipse	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	XRadius,
		uint16_t	YRadius,
		uint32_t	Color
	)

Draws a filled ellipse on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
XRadius	Ellipse X radius
YRadius	Ellipse Y radius
Color	Ellipse color in ARGB mode (8-8-8-8)

Definition at line 63 of file DISCOF469LCD.cpp.

void FillRectangle	(	uint16_t	Xpos,
		uint16_t	Ypos,
		uint16_t	Width,
		uint16_t	Height,
		uint32_t	Color
	)

Draws a filled rectangle on the LCD.

Parameters:

Xpos	X position
Ypos	Y position
Width	Rectangle width
Height	Rectangle height
Color	Rectangle color in ARGB mode (8-8-8-8)

Definition at line 38 of file DISCOF469LCD.cpp.

void GetTouch1	(	uint16_t *	x,
		uint16_t *	y
	)

Gets the x and y coordinates of the first touch on the touchscreen.

Parameters:

x	Pointer to the x coordinate
y	Pointer to the y coordinate

Definition at line 116 of file DISCOF469LCD.cpp.

void GetTouch2	(	uint16_t *	x,
		uint16_t *	y
	)

Gets the x and y coordinates of the second touch on the touchscreen.

Parameters:

x	Pointer to the x coordinate
y	Pointer to the y coordinate

Definition at line 125 of file DISCOF469LCD.cpp.

uint32_t ReadPixel	(	uint16_t	Xpos,
		uint16_t	Ypos
	)

Reads the color of an LCD pixel.

Parameters:

Xpos	X position
Ypos	Y position

Return values:

uint32_t Pixel color in ARGB mode (8-8-8-8)

Definition at line 21 of file DISCOF469LCD.cpp.

uint8_t Touches ( void )

Determines if the touchscreen is being touched or not.

Return values:

uint8_t Number of simulantanous touches on screen. 0 = not touched.

Definition at line 108 of file DISCOF469LCD.cpp.

Type:	Library
Created:	01 Mar 2018
Imports:	41
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	3
Followers:	5

DISCOF469LCD Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

DISCOF469LCD Class Reference

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Repository toolbox

Repository details

Important Information for this Arm website

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