CanvasRGB Class Reference

A special version of canvas for color widget (and device) with 1 pixel/byte accoeding to 565 RGB color coding. More...

#include <canvas.h>

Inheritance diagram for CanvasRGB:

Collaboration diagram for CanvasRGB:

Public Member Functions
	CanvasRGB (uint8_t canvas_width_pixel, uint8_t canvas_height_pixel)
	Construct a new Canvas R G B object.
void	fill_canvas_with_color (ColorIndex color)
	fill the canvas buffer with the given color index
void	draw_pixel (const int x, const int y, const ColorIndex color=ColorIndex::WHITE)
	the graphic primitive to draw a pixel
Public Member Functions inherited from Canvas
	Canvas (uint8_t canvas_width_pixel, uint8_t canvas_height_pixel)
	Construct a new Canvas object.
void	clear_canvas_buffer ()
	fill the canvas buffer with 0x00

Additional Inherited Members
Public Attributes inherited from Canvas
CanvasFormat	canvas_format
	the actual format of the canvas
ColorIndex	canvas_fg_color
	a copy of the widget foreground color
ColorIndex	canvas_bg_color
	a copy of the widget background color
uint8_t	canvas_width_pixel
	the width (in pixel) of the canvas and also of those of the associated widget
uint8_t	canvas_height_pixel
	the height (in pixel) of the canvas and also of those of the associated widget
size_t	canvas_buffer_size
	the size (in bytes) of the buffer
uint8_t *	canvas_buffer {nullptr}
	the buffer

Detailed Description

A special version of canvas for color widget (and device) with 1 pixel/byte accoeding to 565 RGB color coding.

Constructor & Destructor Documentation

CanvasRGB()

CanvasRGB::CanvasRGB	(	uint8_t	canvas_width_pixel,
		uint8_t	canvas_height_pixel )

Construct a new Canvas R G B object.

Parameters

canvas_width_pixel
canvas_height_pixel

Here is the call graph for this function:

Member Function Documentation

draw_pixel()

void CanvasRGB::draw_pixel ( const int x, const int y, const ColorIndex color = ColorIndex::WHITE )

virtual

the graphic primitive to draw a pixel

Parameters

x	the x position of the pixel
y	the y position of the pixel
color	the color of the pixel

Implements Canvas.

fill_canvas_with_color()

void CanvasRGB::fill_canvas_with_color ( ColorIndex color )

virtual

fill the canvas buffer with the given color index

Note

the conversion from color index to RGB565 is done by the device after calling the show() member

Parameters

color

Implements Canvas.

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The documentation for this class was generated from the following files:

• canvas.h
• canvas.cpp