Adapter service for graphical output backends. More...

#include <drawingService.h>

Inheritance diagram for nsbaci::services::DrawingService:

Collaboration diagram for nsbaci::services::DrawingService:

Signals
void	drawCommandReceived (const nsbaci::types::DrawCommand &command)
	Emitted when a drawing command should be executed.
void	clearRequested (const nsbaci::types::Color &backgroundColor)
	Emitted when the canvas should be cleared.
void	drawRequested (const nsbaci::types::Drawable &drawable)
	Emitted when a shape should be drawn.
void	refreshRequested ()
	Emitted when the canvas should refresh.
void	canvasSizeChanged (const nsbaci::types::Size &size)
	Emitted when canvas size changes.

Public Member Functions
	DrawingService (QObject *parent=nullptr)
	DrawingService (const DrawingService &)=delete
DrawingService &	operator= (const DrawingService &)=delete
	DrawingService (DrawingService &&)=delete
DrawingService &	operator= (DrawingService &&)=delete
void	setColor (uint8_t r, uint8_t g, uint8_t b)
	Set the current drawing color using RGB values.
void	setColor (uint8_t r, uint8_t g, uint8_t b, uint8_t a)
	Set the current drawing color using RGBA values.
void	setColor (const nsbaci::types::Color &color)
	Set the current drawing color using a Color struct.
nsbaci::types::Color	getCurrentColor () const
	Get the current drawing color.
void	setPosition (int32_t x, int32_t y)
	Set the current drawing position.
void	setPosition (const nsbaci::types::Point &point)
	Set the current drawing position using a Point.
nsbaci::types::Point	getCurrentPosition () const
	Get the current drawing position.
void	clear ()
	Clear the canvas with optional background color.
void	clear (const nsbaci::types::Color &color)
	Clear the canvas with a specific color.
void	fill ()
	Fill the entire canvas with the current color.
void	refresh ()
	Request a canvas refresh/redraw.
void	setLineWidth (int32_t width)
	Set the line thickness for subsequent drawings.
int32_t	getLineWidth () const
	Get the current line width.
void	drawCircle (int32_t centerX, int32_t centerY, int32_t radius, bool filled=false)
	Draw a circle at the specified position.
void	drawRectangle (int32_t x, int32_t y, int32_t width, int32_t height, bool filled=false)
	Draw a rectangle at the specified position.
void	drawTriangle (int32_t x1, int32_t y1, int32_t x2, int32_t y2, int32_t x3, int32_t y3, bool filled=false)
	Draw a triangle with three vertices.
void	drawLine (int32_t x1, int32_t y1, int32_t x2, int32_t y2)
	Draw a line between two points.
void	drawEllipse (int32_t centerX, int32_t centerY, int32_t radiusX, int32_t radiusY, bool filled=false)
	Draw an ellipse at the specified position.
void	drawPixel (int32_t x, int32_t y)
	Draw a single pixel at the specified position.
void	drawText (int32_t x, int32_t y, const std::string &text, int32_t fontSize=12)
	Draw text at the specified position.
void	drawShape (const nsbaci::types::Shape &shape)
	Draw a generic shape.
nsbaci::types::Size	getCanvasSize () const
	Get the canvas size.
void	setCanvasSize (int32_t width, int32_t height)
	Set the canvas size.
void	reset ()
	Reset the drawing service to initial state.
void	processCommand (const nsbaci::types::DrawCommand &command)
	Process a drawing command from the runtime.

Detailed Description

Adapter service for graphical output backends.

The DrawingService manages drawing state and emits signals when drawing operations are requested by the runtime. It follows an SDL-like approach where you set the render color and then draw shapes.

Usage pattern:

setColor(r, g, b) - Set the current drawing color
drawCircle/drawRect/etc - Draw shapes with current color
clear() - Clear the canvas

The service emits signals that can be connected to any drawing backend (Qt widget, OpenGL, etc.)

Member Function Documentation

◆ canvasSizeChanged

void nsbaci::services::DrawingService::canvasSizeChanged ( const nsbaci::types::Size & size )

signal

Emitted when canvas size changes.

Parameters

size	The new canvas size.

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◆ clear()

void nsbaci::services::DrawingService::clear ( const nsbaci::types::Color & color )

Clear the canvas with a specific color.

Parameters

color The background color.

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◆ clearRequested

void nsbaci::services::DrawingService::clearRequested ( const nsbaci::types::Color & backgroundColor )

signal

Emitted when the canvas should be cleared.

Parameters

backgroundColor The color to clear with.

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◆ drawCircle()

void nsbaci::services::DrawingService::drawCircle	(	int32_t	centerX,
		int32_t	centerY,
		int32_t	radius,
		bool	filled = false )

Draw a circle at the specified position.

Parameters

centerX	Center X coordinate
centerY	Center Y coordinate
radius	Circle radius
filled	Whether to fill the circle

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◆ drawCommandReceived

void nsbaci::services::DrawingService::drawCommandReceived ( const nsbaci::types::DrawCommand & command )

signal

Emitted when a drawing command should be executed.

Parameters

command The drawing command to execute.

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◆ drawEllipse()

void nsbaci::services::DrawingService::drawEllipse	(	int32_t	centerX,
		int32_t	centerY,
		int32_t	radiusX,
		int32_t	radiusY,
		bool	filled = false )

Draw an ellipse at the specified position.

Parameters

centerX	Center X coordinate
centerY	Center Y coordinate
radiusX	Horizontal radius
radiusY	Vertical radius
filled	Whether to fill the ellipse

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◆ drawLine()

void nsbaci::services::DrawingService::drawLine	(	int32_t	x1,
		int32_t	y1,
		int32_t	x2,
		int32_t	y2 )

Draw a line between two points.

Parameters

x1,y1	Start point
x2,y2	End point

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◆ drawPixel()

void nsbaci::services::DrawingService::drawPixel	(	int32_t	x,
		int32_t	y )

Draw a single pixel at the specified position.

Parameters

x	X coordinate
y	Y coordinate

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◆ drawRectangle()

void nsbaci::services::DrawingService::drawRectangle	(	int32_t	x,
		int32_t	y,
		int32_t	width,
		int32_t	height,
		bool	filled = false )

Draw a rectangle at the specified position.

Parameters

x	Top-left X coordinate
y	Top-left Y coordinate
width	Rectangle width
height	Rectangle height
filled	Whether to fill the rectangle

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◆ drawRequested

void nsbaci::services::DrawingService::drawRequested ( const nsbaci::types::Drawable & drawable )

signal

Emitted when a shape should be drawn.

Parameters

drawable The drawable object containing shape and color.

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◆ drawShape()

void nsbaci::services::DrawingService::drawShape ( const nsbaci::types::Shape & shape )

Draw a generic shape.

Parameters

shape The shape to draw.

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◆ drawText()

void nsbaci::services::DrawingService::drawText	(	int32_t	x,
		int32_t	y,
		const std::string &	text,
		int32_t	fontSize = 12 )

Draw text at the specified position.

Parameters

x	X coordinate
y	Y coordinate
text	The text to draw
fontSize	Font size in points

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◆ drawTriangle()

void nsbaci::services::DrawingService::drawTriangle	(	int32_t	x1,
		int32_t	y1,
		int32_t	x2,
		int32_t	y2,
		int32_t	x3,
		int32_t	y3,
		bool	filled = false )

Draw a triangle with three vertices.

Parameters

x1,y1	First vertex
x2,y2	Second vertex
x3,y3	Third vertex
filled	Whether to fill the triangle

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◆ getCanvasSize()

nsbaci::types::Size nsbaci::services::DrawingService::getCanvasSize ( ) const

inline

Get the canvas size.

Returns: The canvas size.

◆ getCurrentColor()

nsbaci::types::Color nsbaci::services::DrawingService::getCurrentColor ( ) const

inline

Get the current drawing color.

Returns: The current color.

◆ getCurrentPosition()

nsbaci::types::Point nsbaci::services::DrawingService::getCurrentPosition ( ) const

inline

Get the current drawing position.

Returns: The current position.

◆ getLineWidth()

int32_t nsbaci::services::DrawingService::getLineWidth ( ) const

inline

Get the current line width.

Returns: The current line width.

◆ processCommand()

void nsbaci::services::DrawingService::processCommand ( const nsbaci::types::DrawCommand & command )

Process a drawing command from the runtime.

This method is intended to be called from the runtime's drawing callback. It processes the command and emits the appropriate signal.

Parameters

command The drawing command to process.

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◆ setCanvasSize()

void nsbaci::services::DrawingService::setCanvasSize	(	int32_t	width,
		int32_t	height )

Set the canvas size.

Parameters

width	Canvas width
height	Canvas height

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◆ setColor() [1/3]

void nsbaci::services::DrawingService::setColor ( const nsbaci::types::Color & color )

Set the current drawing color using a Color struct.

Parameters

color The color to set.

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◆ setColor() [2/3]

void nsbaci::services::DrawingService::setColor	(	uint8_t	r,
		uint8_t	g,
		uint8_t	b )

Set the current drawing color using RGB values.

Parameters

r	Red component (0-255)
g	Green component (0-255)
b	Blue component (0-255)

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◆ setColor() [3/3]

void nsbaci::services::DrawingService::setColor	(	uint8_t	r,
		uint8_t	g,
		uint8_t	b,
		uint8_t	a )

Set the current drawing color using RGBA values.

Parameters

r	Red component (0-255)
g	Green component (0-255)
b	Blue component (0-255)
a	Alpha component (0-255)

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◆ setLineWidth()

void nsbaci::services::DrawingService::setLineWidth ( int32_t width )

Set the line thickness for subsequent drawings.

Parameters

width Line width in pixels.

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◆ setPosition() [1/2]

void nsbaci::services::DrawingService::setPosition ( const nsbaci::types::Point & point )

Set the current drawing position using a Point.

Parameters

point The position to set.

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◆ setPosition() [2/2]

void nsbaci::services::DrawingService::setPosition	(	int32_t	x,
		int32_t	y )

Set the current drawing position.

Parameters

x	X coordinate
y	Y coordinate

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

Signals

Public Member Functions

Detailed Description

Member Function Documentation

◆ canvasSizeChanged

◆ clear()

◆ clearRequested

◆ drawCircle()

◆ drawCommandReceived

◆ drawEllipse()

◆ drawLine()

◆ drawPixel()

◆ drawRectangle()

◆ drawRequested

◆ drawShape()

◆ drawText()

◆ drawTriangle()

◆ getCanvasSize()

◆ getCurrentColor()

◆ getCurrentPosition()

◆ getLineWidth()

◆ processCommand()

◆ setCanvasSize()

◆ setColor() [1/3]

◆ setColor() [2/3]

◆ setColor() [3/3]

◆ setLineWidth()

◆ setPosition() [1/2]

◆ setPosition() [2/2]