Graphics

Graphics specific functions such as drawing lines, circles, rectangles etc. More...

Functions
void	glcd_draw_bitmap (const unsigned char *data)
	Draw bitmap to screen buffer. More...
void	glcd_draw_circle (uint8_t x0, uint8_t y0, uint8_t r, uint8_t color)
	Draw circle but do not fill. More...
void	glcd_draw_line (uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t color)
	Draw line. More...
void	glcd_draw_rect (uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color)
	Draw rectangle but do not fill. More...
void	glcd_draw_rect_shadow (uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color)
	Draw rectangle but do not fill. More...
void	glcd_draw_rect_thick (uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t tx, uint8_t ty, uint8_t color)
	Draw rectangle but do not fill. More...
void	glcd_fill_circle (uint8_t x0, uint8_t y0, uint8_t r, uint8_t color)
	Draw circle and fill. More...
void	glcd_fill_rect (uint8_t x, uint8_t y, uint8_t w, uint8_t h, uint8_t color)
	Draw rectangle and fill with colour. More...
uint8_t	glcd_get_pixel (uint8_t x, uint8_t y)
	Get state of pixel from specified location. More...
void	glcd_invert_area (uint8_t x, uint8_t y, uint8_t w, uint8_t h)
	Invert pixels in a retangular area. More...
void	glcd_invert_pixel (uint8_t x, uint8_t y)
	Invert state of pixel of specified location. More...
void	glcd_set_pixel (uint8_t x, uint8_t y, uint8_t color)
	Set pixel to specified colour. More...

Detailed Description

Graphics specific functions such as drawing lines, circles, rectangles etc.

Function Documentation

void glcd_draw_bitmap

(

const unsigned char *

data

)

Draw bitmap to screen buffer.

Note this will draw to the entire buffer, its not yet possible to draw partially to the LCD. Not yet supported with AVR pgmspace.

Parameters

data	Pointer to bitmap data.

Definition at line 279 of file graphics.c.

Referenced by glcd_test_bitmap_128x64().

void glcd_draw_circle	(	uint8_t	x0,
		uint8_t	y0,
		uint8_t	r,
		uint8_t	color
	)

Draw circle but do not fill.

The border of the rectangle is the same as fill colour

Parameters

x0	Centre x-coordinate (left-most)
y0	Centre y-coordinate (top-most)
r	Radius
color	Colour of border

See Also

ColourConstants

Definition at line 190 of file graphics.c.

void glcd_draw_line	(	uint8_t	x0,
		uint8_t	y0,
		uint8_t	x1,
		uint8_t	y1,
		uint8_t	color
	)

Draw line.

Parameters

x0	Start x-coordinate
y0	Start y-coordinate
x1	End x-coordinate
y1	End y-coordinate
color	Colour to set pixels

See Also

ColourConstants

Definition at line 85 of file graphics.c.

Referenced by glcd_draw_rect_shadow(), and glcd_scrolling_bar_graph().

void glcd_draw_rect	(	uint8_t	x,
		uint8_t	y,
		uint8_t	w,
		uint8_t	h,
		uint8_t	color
	)

Draw rectangle but do not fill.

The border of the rectangle is the same as fill colour

Parameters

x	Start x-coordinate (left-most)
y	Start y-coordinate (top-most)
w	Width
h	Height
color	Colour of border

See Also

ColourConstants

Definition at line 140 of file graphics.c.

Referenced by glcd_bar_graph_horizontal(), glcd_bar_graph_vertical(), glcd_draw_rect_shadow(), glcd_scrolling_bar_graph(), and glcd_test_rectangles().

void glcd_draw_rect_shadow	(	uint8_t	x,
		uint8_t	y,
		uint8_t	w,
		uint8_t	h,
		uint8_t	color
	)

Draw rectangle but do not fill.

Place a shadow line on the bottom-right of the window. The border of the rectangle is the same as fill colour

Parameters

x	Start x-coordinate (left-most)
y	Start y-coordinate (top-most)
w	Width
h	Height
color	Colour of border

See Also

ColourConstants

Definition at line 183 of file graphics.c.

Referenced by glcd_test_rectangles().

void glcd_draw_rect_thick	(	uint8_t	x,
		uint8_t	y,
		uint8_t	w,
		uint8_t	h,
		uint8_t	tx,
		uint8_t	ty,
		uint8_t	color
	)

Draw rectangle but do not fill.

User specified thickness. The border of the rectangle is the same as fill colour

Parameters

x	Start x-coordinate (left-most)
y	Start y-coordinate (top-most)
w	Width (outermost pixels)
h	Height
tx	Thickness of horizontal border along X axis
ty	Thickness of vertical border along Y axis
color	Colour of border

See Also

ColourConstants

Definition at line 154 of file graphics.c.

Referenced by glcd_test_rectangles().

void glcd_fill_circle	(	uint8_t	x0,
		uint8_t	y0,
		uint8_t	r,
		uint8_t	color
	)

Draw circle and fill.

The border of the rectangle is the same as fill colour

Parameters

x0	Centre x-coordinate (left-most)
y0	Centre y-coordinate (top-most)
r	Radius
color	Colour of border

See Also

ColourConstants

Definition at line 229 of file graphics.c.

Referenced by glcd_test_circles().

void glcd_fill_rect	(	uint8_t	x,
		uint8_t	y,
		uint8_t	w,
		uint8_t	h,
		uint8_t	color
	)

Draw rectangle and fill with colour.

The border of the rectangle is the same as fill colour

Parameters

x	Start x-coordinate (left-most)
y	Start y-coordinate (top-most)
w	Width
h	Height
color	Colour to fill with

See Also

ColourConstants

Definition at line 128 of file graphics.c.

Referenced by glcd_bar_graph_horizontal(), glcd_bar_graph_horizontal_no_border(), glcd_bar_graph_vertical(), and glcd_bar_graph_vertical_no_border().

uint8_t glcd_get_pixel	(	uint8_t	x,
		uint8_t	y
	)

Get state of pixel from specified location.

Parameters

x	X-coordinate
y	Y-coordinate

Returns

Colour

Definition at line 64 of file graphics.c.

Referenced by glcd_scrolling_bar_graph().

void glcd_invert_area	(	uint8_t	x,
		uint8_t	y,
		uint8_t	w,
		uint8_t	h
	)

Invert pixels in a retangular area.

Parameters

x	Start x-coordinate (left-most)
y	Start y-coordinate (top-most)
w	Width
h	Height

Definition at line 267 of file graphics.c.

Referenced by glcd_tiny_invert_line().

void glcd_invert_pixel	(	uint8_t	x,
		uint8_t	y
	)

Invert state of pixel of specified location.

Parameters

x	X-coordinate
y	Y-coordinate

Definition at line 76 of file graphics.c.

Referenced by glcd_invert_area().

void glcd_set_pixel	(	uint8_t	x,
		uint8_t	y,
		uint8_t	color
	)

Set pixel to specified colour.

Parameters

x	X-coordinate
y	Y-coordinate
color	Colour to set pixel

See Also

ColourConstants

Definition at line 46 of file graphics.c.

Referenced by glcd_draw_char_xy(), glcd_draw_circle(), glcd_draw_line(), glcd_draw_rect(), glcd_draw_rect_thick(), glcd_fill_circle(), glcd_fill_rect(), glcd_scrolling_bar_graph(), and glcd_tiny_draw_char_xy().