Class MicroGraphics

Provide high level graphics functions

Assembly: MicroGraphics.dll

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Declaration

public class MicroGraphics : ITextDisplay, IDisplay

Implements:
Meadow.Peripherals.Displays.ITextDisplay, Meadow.Peripherals.Displays.IDisplay

Properties

PixelBuffer

PixelBuffer draw target

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Declaration

protected IPixelBuffer PixelBuffer { get; }

EnabledColor

The color used when a pixel is enabled (on)

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Declaration

public Color EnabledColor { get; }

DisabledColor

The color used when a pixel is not enabled (off)

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Declaration

public Color DisabledColor { get; }

CurrentFont

Font used for drawing text to the display

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Declaration

public IFont CurrentFont { get; set; }

ColorMode

Current color mode

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Declaration

public ColorMode ColorMode { get; }

Rotation

Current rotation used for drawing pixels to the display

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Declaration

public RotationType Rotation { get; set; }

Stroke

Stroke / line thickness when drawing lines or shape outlines

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Declaration

public int Stroke { get; set; }

PenColor

Current pen color

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Declaration

public Color PenColor { get; set; }

Height

Return the height of the display after accounting for the rotation

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Declaration

public int Height { get; }

Width

Return the width of the display after accounting for the rotation

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Declaration

public int Width { get; }

DisplayConfig

Text display configuration for use with text display menu

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Declaration

public TextDisplayConfig DisplayConfig { get; }

DelayBetweenFrames

Optional enforced delay between updates when calling ShowBuffered

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Declaration

public TimeSpan DelayBetweenFrames { get; set; }

CursorColumn

The current cursor column relative to text/font

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Declaration

public byte CursorColumn { get; }

CursorLine

The current cursor line relative to the text

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Declaration

public byte CursorLine { get; }

Fields

canvasState

The current canvas state

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Declaration

protected MicroGraphics.CanvasState? canvasState

display

Display object responsible for managing the buffer and rendering

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Declaration

protected readonly IPixelDisplay? display

IgnoreOutOfBoundsPixels

ignore pixels that are outside of the pixel buffer coordinate space

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Declaration

public bool IgnoreOutOfBoundsPixels

Methods

DrawLineAntialiased(float, float, float, float, Color)

Draws an anti-aliased line between two points using the Xiaolin Wu algorithm

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Declaration

public void DrawLineAntialiased(float x0, float y0, float x1, float y1, Color color)

Parameters

Type	Name	Description
System.Single	x0	The x-coordinate of the starting point of the line
System.Single	y0	The y-coordinate of the starting point of the line
System.Single	x1	The x-coordinate of the ending point of the line
System.Single	y1	The y-coordinate of the ending point of the line
Meadow.Color	color	The color of the line

DrawTriangleAntialiased(int, int, int, int, int, int, Color, bool)

Draw an anti-aliased triangle

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Declaration

public void DrawTriangleAntialiased(int x0, int y0, int x1, int y1, int x2, int y2, Color color, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x0	Vertex #0 x coordinate
System.Int32	y0	Vertex #0 y coordinate
System.Int32	x1	Vertex #1 x coordinate
System.Int32	y1	Vertex #1 y coordinate
System.Int32	x2	Vertex #2 x coordinate
System.Int32	y2	Vertex #2 y coordinate
Meadow.Color	color	The color of the triangle
System.Boolean	filled	Draw a filled triangle?

SaveState()

Save any state variables Includes: CurrentFont, Stroke, and Rotation

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Declaration

public void SaveState()

RestoreState()

Restore saved state variables and apply them to the MicroGraphics instance Includes: CurrentFont, Stroke, and Rotation

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Declaration

public void RestoreState()

DrawPixel(int, int, Color)

Draw a single pixel using the pen color

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Declaration

public virtual void DrawPixel(int x, int y, Color color)

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location
Meadow.Color	color	Color of pixel

DrawPixel(int, int, bool)

Draw a single pixel

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Declaration

public void DrawPixel(int x, int y, bool enabled)

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location
System.Boolean	enabled	Turn the pixel on (true) or off (false)

DrawPixel(int, int)

Draw a single pixel

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Declaration

public virtual void DrawPixel(int x, int y)

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location

DrawPixel(int)

Draw a single pixel using the pen color

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Declaration

public virtual void DrawPixel(int index)

Parameters

Type	Name	Description
System.Int32	index	pixel location in buffer

InvertPixel(int, int)

Invert the color of the pixel at the given location

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Declaration

public void InvertPixel(int x, int y)

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location

InvertRectangle(int, int, int, int)

Invert all pixels within a rectangle

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Declaration

public virtual void InvertRectangle(int x, int y, int width, int height)

Parameters

Type	Name	Description
System.Int32	x	x start
System.Int32	y	y start
System.Int32	width	width of area to invert
System.Int32	height	height of area to invert

DrawLine(int, int, int, int, bool)

Draw a line using Bresenhams line drawing algorithm

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Declaration

public void DrawLine(int x0, int y0, int x1, int y1, bool enabled)

Parameters

Type	Name	Description
System.Int32	x0	Abscissa of the starting point of the line
System.Int32	y0	Ordinate of the starting point of the line
System.Int32	x1	Abscissa of the end point of the line
System.Int32	y1	Ordinate of the end point of the line
System.Boolean	enabled	Turn the pixel on (true) or off (false)

DrawLine(int, int, int, float, bool)

Draw a line using polar coordinates

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Declaration

public void DrawLine(int x, int y, int length, float angle, bool enabled)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of line
System.Single	angle	Angle in radians
System.Boolean	enabled	Turn the pixel on (true) or off (false)

DrawLine(int, int, int, int)

Draw a line using Bresenhams line drawing algorithm

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Declaration

public void DrawLine(int x0, int y0, int x1, int y1)

Parameters

Type	Name	Description
System.Int32	x0	Abscissa of the starting point of the line
System.Int32	y0	Ordinate of the starting point of the line
System.Int32	x1	Abscissa of the end point of the line
System.Int32	y1	Ordinate of the end point of the line

DrawLine(int, int, int, float, Color)

Draw a line from a point to a position defined by a radius and an angle

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Declaration

public void DrawLine(int x, int y, int length, float angle, Color color)

Parameters

Type	Name	Description
System.Int32	x
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	length of line
System.Single	angle	angle to draw line in radians
Meadow.Color	color	The color of the line

DrawLine(int, int, int, int, Color)

Draw a line using Bresenhams line drawing algorithm

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Declaration

public void DrawLine(int x0, int y0, int x1, int y1, Color color)

Parameters

Type	Name	Description
System.Int32	x0	Abscissa of the starting point of the line
System.Int32	y0	Ordinate of the starting point of the line
System.Int32	x1	Abscissa of the end point of the line
System.Int32	y1	Ordinate of the end point of the line
Meadow.Color	color	Color of the line to be drawn

DrawHorizontalLine(int, int, int, bool)

Draw a horizontal line.

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Declaration

public void DrawHorizontalLine(int x, int y, int length, bool enabled)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of the line to draw
System.Boolean	enabled	Turn the pixel on (true) or off (false)

DrawHorizontalLine(int, int, int)

Draw a horizontal line

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Declaration

public void DrawHorizontalLine(int x, int y, int length)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of the line to draw

DrawHorizontalLine(int, int, int, Color)

Draw a horizontal line

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Declaration

public void DrawHorizontalLine(int x, int y, int length, Color color)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of the line to draw
Meadow.Color	color	The color of the line

DrawVerticalLine(int, int, int, bool)

Draw a vertical line.

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Declaration

public void DrawVerticalLine(int x, int y, int length, bool enabled)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of the line to draw
System.Boolean	enabled	Show the line when (true) or off (false)

DrawVerticalLine(int, int, int)

Draw a vertical line

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Declaration

public void DrawVerticalLine(int x, int y, int length)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of the line to draw

DrawVerticalLine(int, int, int, Color)

Draw a vertical line

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Declaration

public void DrawVerticalLine(int x, int y, int length, Color color)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the starting point of the line
System.Int32	y	Ordinate of the starting point of the line
System.Int32	length	Length of the line to draw
Meadow.Color	color	The color of the line

DrawArc(int, int, int, Angle, Angle, Color, bool)

Draw a circular arc between two angles

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Declaration

public void DrawArc(int centerX, int centerY, int radius, Angle startAngle, Angle endAngle, Color color, bool centerBetweenPixels = true)

Parameters

Type	Name	Description
System.Int32	centerX	Abscissa of the center point of the circle
System.Int32	centerY	Ordinate of the center point of the circle
System.Int32	radius	Radius of the circle
Meadow.Units.Angle	startAngle	The arc starting angle
Meadow.Units.Angle	endAngle	The arc ending angle
Meadow.Color	color	The color of the circle
System.Boolean	centerBetweenPixels	If true, the center of the arc is between the assigned pixel and the next pixel, false it's directly on the center pixel

DrawArc(int, int, int, Angle, Angle, bool, bool)

Draw a circular arc between two angles

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Declaration

public void DrawArc(int centerX, int centerY, int radius, Angle startAngle, Angle endAngle, bool enabled = true, bool centerBetweenPixels = true)

Parameters

Type	Name	Description
System.Int32	centerX	Abscissa of the center point of the circle
System.Int32	centerY	Ordinate of the center point of the circle
System.Int32	radius	Radius of the circle
Meadow.Units.Angle	startAngle	The arc starting angle
Meadow.Units.Angle	endAngle	The arc ending angle
System.Boolean	enabled	Should draw the arc (true) or remove (false)
System.Boolean	centerBetweenPixels	If true, the center of the arc is between the assigned pixel and the next pixel, false it's directly on the center pixel

DrawArc(int, int, int, Angle, Angle, bool)

Draw a circular arc between two angles using PenColor

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Declaration

public void DrawArc(int centerX, int centerY, int radius, Angle startAngle, Angle endAngle, bool centerBetweenPixels = true)

Parameters

Type	Name	Description
System.Int32	centerX	Abscissa of the center point of the circle
System.Int32	centerY	Ordinate of the center point of the circle
System.Int32	radius	Radius of the circle
Meadow.Units.Angle	startAngle	The arc starting angle
Meadow.Units.Angle	endAngle	The arc ending angle
System.Boolean	centerBetweenPixels	If true, the center of the arc is between the assigned pixel and the next pixel, false it's directly on the center pixel

DrawTriangle(int, int, int, int, int, int, Color, bool)

Draw a triangle

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Declaration

public void DrawTriangle(int x0, int y0, int x1, int y1, int x2, int y2, Color color, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x0	Vertex #0 x coordinate
System.Int32	y0	Vertex #0 y coordinate
System.Int32	x1	Vertex #1 x coordinate
System.Int32	y1	Vertex #1 y coordinate
System.Int32	x2	Vertex #2 x coordinate
System.Int32	y2	Vertex #2 y coordinate
Meadow.Color	color	Color of triangle
System.Boolean	filled	Draw a filled triangle?

DrawTriangle(int, int, int, int, int, int, bool, bool)

Draw a triangle

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Declaration

public void DrawTriangle(int x0, int y0, int x1, int y1, int x2, int y2, bool enabled = true, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x0	Vertex #0 x coordinate
System.Int32	y0	Vertex #0 y coordinate
System.Int32	x1	Vertex #1 x coordinate
System.Int32	y1	Vertex #1 y coordinate
System.Int32	x2	Vertex #2 x coordinate
System.Int32	y2	Vertex #2 y coordinate
System.Boolean	enabled	Should the triangle add (true) or remove (false)
System.Boolean	filled	Draw a filled triangle?

DrawTriangle(int, int, int, int, int, int, bool)

Draw a triangle

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Declaration

public void DrawTriangle(int x0, int y0, int x1, int y1, int x2, int y2, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x0	Vertex #0 x coordinate
System.Int32	y0	Vertex #0 y coordinate
System.Int32	x1	Vertex #1 x coordinate
System.Int32	y1	Vertex #1 y coordinate
System.Int32	x2	Vertex #2 x coordinate
System.Int32	y2	Vertex #2 y coordinate
System.Boolean	filled	Draw a filled triangle?

DrawCircle(int, int, int, bool, bool, bool)

Draw a circle

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Declaration

public void DrawCircle(int centerX, int centerY, int radius, bool enabled, bool filled = false, bool centerBetweenPixels = false)

Parameters

Type	Name	Description
System.Int32	centerX	Abscissa of the center point of the circle
System.Int32	centerY	Ordinate of the center point of the circle
System.Int32	radius	Radius of the circle
System.Boolean	enabled	Show the circle when true
System.Boolean	filled	Draw a filled circle?
System.Boolean	centerBetweenPixels	Set center between pixels

DrawCircle(int, int, int, Color, bool, bool)

Draw a circle

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Declaration

public void DrawCircle(int centerX, int centerY, int radius, Color color, bool filled = false, bool centerBetweenPixels = false)

Parameters

Type	Name	Description
System.Int32	centerX	Abscissa of the center point of the circle
System.Int32	centerY	Ordinate of the center point of the circle
System.Int32	radius	Radius of the circle
Meadow.Color	color	The color of the circle
System.Boolean	filled	Draw a filled circle
System.Boolean	centerBetweenPixels	If true, the center of the circle is between the assigned pixel and the next pixel, false it's directly on the center pixel

DrawCircle(int, int, int, bool, bool)

Draw a circle

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Declaration

public void DrawCircle(int centerX, int centerY, int radius, bool filled = false, bool centerBetweenPixels = false)

Parameters

Type	Name	Description
System.Int32	centerX	Abscissa of the center point of the circle
System.Int32	centerY	Ordinate of the center point of the circle
System.Int32	radius	Radius of the circle
System.Boolean	filled	Draw a filled circle?
System.Boolean	centerBetweenPixels	If true, the center of the circle is between the assigned pixel and the next pixel, false it's directly on the center pixel

DrawCircleQuadrant(int, int, int, int, bool, bool, bool)

Draws a circle quadrant (quarter circle)

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Declaration

public void DrawCircleQuadrant(int centerX, int centerY, int radius, int quadrant, bool enabled = true, bool filled = false, bool centerBetweenPixels = false)

Parameters

Type	Name
System.Int32	centerX
System.Int32	centerY
System.Int32	radius
System.Int32	quadrant
System.Boolean	enabled
System.Boolean	filled
System.Boolean	centerBetweenPixels

DrawCircleQuadrant(int, int, int, int, bool, bool)

Draws a circle quadrant (quarter circle)

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Declaration

public void DrawCircleQuadrant(int centerX, int centerY, int radius, int quadrant, bool filled = false, bool centerBetweenPixels = false)

Parameters

Type	Name
System.Int32	centerX
System.Int32	centerY
System.Int32	radius
System.Int32	quadrant
System.Boolean	filled
System.Boolean	centerBetweenPixels

DrawCircleQuadrant(int, int, int, int, Color, bool, bool)

Draws a circle quadrant (quarter circle)

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Declaration

public void DrawCircleQuadrant(int centerX, int centerY, int radius, int quadrant, Color color, bool filled = false, bool centerBetweenPixels = false)

Parameters

Type	Name
System.Int32	centerX
System.Int32	centerY
System.Int32	radius
System.Int32	quadrant
Meadow.Color	color
System.Boolean	filled
System.Boolean	centerBetweenPixels

DrawRectangle(int, int, int, int, bool, bool)

Draw a rectangle

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Declaration

public void DrawRectangle(int x, int y, int width, int height, bool enabled, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
System.Boolean	enabled	Turn pixels on (true) or turn pixels off (false)
System.Boolean	filled	Fill the rectangle (true) or draw the outline (false, default)

DrawRectangle(int, int, int, int, bool)

Draw a rectangle

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Declaration

public void DrawRectangle(int x, int y, int width, int height, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
System.Boolean	filled	Fill the rectangle (true) or draw the outline (false, default)

DrawRectangle(int, int, int, int, Color, bool)

Draw a rectangle

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Declaration

public void DrawRectangle(int x, int y, int width, int height, Color color, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
Meadow.Color	color	The color of the rectangle
System.Boolean	filled	Fill the rectangle (true) or draw the outline (false, default)

DrawHorizontalGradient(int, int, int, int, Color, Color)

Draw a horizontal gradient filled rectangle

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Declaration

public void DrawHorizontalGradient(int x, int y, int width, int height, Color colorLeft, Color colorRight)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
Meadow.Color	colorLeft	The start (left) color of the gradient
Meadow.Color	colorRight	The end (right) color of the gradient

DrawVerticalGradient(int, int, int, int, Color, Color)

Draw a vertical gradient filled rectangle

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Declaration

public void DrawVerticalGradient(int x, int y, int width, int height, Color colorTop, Color colorBottom)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
Meadow.Color	colorTop	The start (top) color of the gradient
Meadow.Color	colorBottom	The end (bottom) color of the gradient

DrawRoundedRectangle(int, int, int, int, int, bool, bool)

Draw a rounded rectangle

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Declaration

public void DrawRoundedRectangle(int x, int y, int width, int height, int cornerRadius, bool enabled, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
System.Int32	cornerRadius	Radius of the corners of the rectangle
System.Boolean	enabled	Turn pixels on (true) or turn pixels off (false)
System.Boolean	filled	Fill the rectangle (true) or draw the outline (false, default)

DrawRoundedRectangle(int, int, int, int, int, bool)

Draw a rounded rectangle

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Declaration

public void DrawRoundedRectangle(int x, int y, int width, int height, int cornerRadius, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
System.Int32	cornerRadius	Radius of the corners of the rectangle
System.Boolean	filled	Fill the rectangle (true) or draw the outline (false, default)

DrawRoundedRectangle(int, int, int, int, int, Color, bool)

Draw a rounded rectangle

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Declaration

public void DrawRoundedRectangle(int x, int y, int width, int height, int cornerRadius, Color color, bool filled = false)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner
System.Int32	y	Ordinate of the top left corner
System.Int32	width	Width of the rectangle
System.Int32	height	Height of the rectangle
System.Int32	cornerRadius	Radius of the corners of the rectangle
Meadow.Color	color	The color of the rectangle
System.Boolean	filled	Fill the rectangle (true) or draw the outline (false, default)

MeasureText(string, ScaleFactor)

Get the size in pixels of a string using the current font

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Declaration

public Size MeasureText(string text, ScaleFactor scaleFactor = ScaleFactor.X1)

Returns

Meadow.Foundation.Graphics.Size

Parameters

Type	Name	Description
System.String	text	The string to measure
Meadow.Foundation.Graphics.ScaleFactor	scaleFactor	Scale factor used to calculate the size

MeasureText(string, IFont, ScaleFactor)

Get the size in pixels of a string for a given font and scale factor

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Declaration

public Size MeasureText(string text, IFont font, ScaleFactor scaleFactor = ScaleFactor.X1)

Returns

Meadow.Foundation.Graphics.Size

Parameters

Type	Name	Description
System.String	text	The string to measure
Meadow.Foundation.Graphics.IFont	font	The font used to calculate the text size
Meadow.Foundation.Graphics.ScaleFactor	scaleFactor	Scale factor used to calculate the size

DrawText(int, int, string, Color, ScaleFactor, HorizontalAlignment, VerticalAlignment, IFont?)

Draw a text message on the display using the current font.

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Declaration

public void DrawText(int x, int y, string text, Color color, ScaleFactor scaleFactor = ScaleFactor.X1, HorizontalAlignment alignmentH = HorizontalAlignment.Left, VerticalAlignment alignmentV = VerticalAlignment.Top, IFont? font = null)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the location of the text
System.Int32	y	Ordinate of the location of the text
System.String	text	Text to display
Meadow.Color	color	Color of the text
Meadow.Foundation.Graphics.ScaleFactor	scaleFactor	Scale factor used to calculate the size
Meadow.Foundation.Graphics.HorizontalAlignment	alignmentH	Horizontal alignment: Left, Center or right aligned text
Meadow.Foundation.Graphics.VerticalAlignment	alignmentV	Vertical alignment: Top, Center or bottom aligned text
Meadow.Foundation.Graphics.IFont	font	Optional font used to draw the text

DrawBuffer(int, int, IPixelBuffer, HorizontalAlignment, VerticalAlignment)

Draw a buffer onto the display buffer at the given location For best performance, source buffer should be the same color depth as the target display

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Declaration

public void DrawBuffer(int x, int y, IPixelBuffer buffer, HorizontalAlignment alignmentH = HorizontalAlignment.Left, VerticalAlignment alignmentV = VerticalAlignment.Top)

Parameters

Type	Name	Description
System.Int32	x	x location of target to draw buffer
System.Int32	y	y location of target to draw buffer
Meadow.Peripherals.Displays.IPixelBuffer	buffer	the source buffer to write to the display buffer
Meadow.Foundation.Graphics.HorizontalAlignment	alignmentH	Horizontal alignment: Left, Center or right align the buffer to the x location
Meadow.Foundation.Graphics.VerticalAlignment	alignmentV	Vertical alignment: Top, Center or bottom align the buffer to the y location

DrawBuffer(int, int, IPixelBuffer)

Draw a buffer onto the display buffer at the given location For best performance, source buffer should be the same color depth as the target display

View Source

Declaration

public void DrawBuffer(int x, int y, IPixelBuffer buffer)

Parameters

Type	Name	Description
System.Int32	x	x location of target to draw buffer
System.Int32	y	y location of target to draw buffer
Meadow.Peripherals.Displays.IPixelBuffer	buffer	the source buffer to write to the display buffer

DrawBufferWithTransparencyColor(int, int, IPixelBuffer, Color)

Draw a buffer onto the display buffer at the given location with a transparency color that will not be drawn

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Declaration

public void DrawBufferWithTransparencyColor(int x, int y, IPixelBuffer buffer, Color transparencyColor)

Parameters

Type	Name	Description
System.Int32	x	x location of target to draw buffer
System.Int32	y	y location of target to draw buffer
Meadow.Peripherals.Displays.IPixelBuffer	buffer	the source buffer to write to the display buffer
Meadow.Color	transparencyColor	the color to ignore when drawing the buffer

GetPixel(int, int)

Get the color for a pixel at a given location

View Source

Declaration

public virtual Color GetPixel(int x, int y)

Returns

Meadow.Color

Parameters

Type	Name	Description
System.Int32	x	x location
System.Int32	y	y location

DrawPixelWithAlpha(float, float, Color)

Draws a pixel with alpha blending at the specified coordinates using the given color and it's alpha value

View Source

Declaration

public void DrawPixelWithAlpha(float x, float y, Color color)

Parameters

Type	Name	Description
System.Single	x	The x-coordinate of the pixel
System.Single	y	The y-coordinate of the pixel
Meadow.Color	color	The color to draw

DrawPixelWithAlpha(float, float, Color, float)

Draws a pixel with alpha blending at the specified coordinates using the given color an external alpha value

View Source

Declaration

public void DrawPixelWithAlpha(float x, float y, Color color, float alpha)

Parameters

Type	Name	Description
System.Single	x	The x-coordinate of the pixel
System.Single	y	The y-coordinate of the pixel
Meadow.Color	color	The color to draw
System.Single	alpha	The alpha value

DrawImage(int, int, Image, HorizontalAlignment, VerticalAlignment)

Draw an Image onto the display buffer at the specified location

View Source

Declaration

public void DrawImage(int x, int y, Image image, HorizontalAlignment alignmentH = HorizontalAlignment.Left, VerticalAlignment alignmentV = VerticalAlignment.Top)

Parameters

Type	Name	Description
System.Int32	x	x location of target to draw buffer
System.Int32	y	x location of target to draw buffer
Meadow.Foundation.Graphics.Image	image	the source image to write to the display buffer
Meadow.Foundation.Graphics.HorizontalAlignment	alignmentH	Horizontal alignment: Left, Center or right align the image to the x location
Meadow.Foundation.Graphics.VerticalAlignment	alignmentV	Vertical alignment: Top, Center or bottom align the image to the y location

DrawImage(int, int, Image)

Draw an Image onto the display buffer at the specified location

View Source

Declaration

public void DrawImage(int x, int y, Image image)

Parameters

Type	Name	Description
System.Int32	x	x location of target to draw buffer
System.Int32	y	x location of target to draw buffer
Meadow.Foundation.Graphics.Image	image	the source image to write to the display buffer

DrawImage(Image)

Draw an Image onto the display buffer at (0, 0)

View Source

Declaration

public void DrawImage(Image image)

Parameters

Type	Name	Description
Meadow.Foundation.Graphics.Image	image	the source image to write to the display buffer

DrawText(int, int, string, ScaleFactor, HorizontalAlignment, VerticalAlignment)

Draw a text message on the display using the current font

View Source

Declaration

public void DrawText(int x, int y, string text, ScaleFactor scaleFactor = ScaleFactor.X1, HorizontalAlignment alignmentH = HorizontalAlignment.Left, VerticalAlignment alignmentV = VerticalAlignment.Top)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the location of the text
System.Int32	y	Ordinate of the location of the text
System.String	text	Text to display
Meadow.Foundation.Graphics.ScaleFactor	scaleFactor	Scale factor used to calculate the size
Meadow.Foundation.Graphics.HorizontalAlignment	alignmentH	Horizontal alignment: Left, Center or right aligned text
Meadow.Foundation.Graphics.VerticalAlignment	alignmentV	Vertical alignment: Top, Center or bottom aligned text

Show()

Update the display target from the buffer (thread safe)

View Source

Declaration

public virtual void Show()

ShowBuffered()

Update the display target from the buffer (thread safe) while respecting MinimumTimeBetweenUpdates

View Source

Declaration

public virtual Task ShowBuffered()

Returns

System.Threading.Tasks.Task

ShowUnsafe()

Update the display target from the buffer (not thread safe)

View Source

Declaration

public virtual void ShowUnsafe()

ShowUnsafe(int, int, int, int)

Update a region of the display Note: not all displays support partial updates

View Source

Declaration

public virtual void ShowUnsafe(int left, int top, int right, int bottom)

Parameters

Type	Name
System.Int32	left
System.Int32	top
System.Int32	right
System.Int32	bottom

Show(int, int, int, int)

Update a region of the the display target from the buffer (thread safe) Note: not all displays support partial updates

View Source

Declaration

public virtual void Show(int left, int top, int right, int bottom)

Parameters

Type	Name	Description
System.Int32	left	The left coordinate of the display area to update
System.Int32	top	The top coordinate of the display area to update
System.Int32	right	The right coordinate of the display area to update
System.Int32	bottom	The bottom coordinate of the display area to update

Show(Rect)

Update a region of the display Note: not all displays support partial updates

View Source

Declaration

public virtual void Show(Rect rect)

Parameters

Type	Name
Meadow.Foundation.Graphics.Rect	rect

Clear(bool)

Clear the pixel buffer

View Source

Declaration

public virtual void Clear(bool updateDisplay = false)

Parameters

Type	Name	Description
System.Boolean	updateDisplay	Update the display immediately when true

Clear(int, int, int, int, bool)

Clear a region of the display pixel buffer

View Source

Declaration

public virtual void Clear(int originX, int originY, int width, int height, bool updateDisplay = false)

Parameters

Type	Name	Description
System.Int32	originX	The X coord to start
System.Int32	originY	The Y coord to start
System.Int32	width	The width of the region to clear
System.Int32	height	The height of the region to clear
System.Boolean	updateDisplay	Update the display immediately when true

Clear(Color, bool)

Clear the pixel buffer to a color

View Source

Declaration

public virtual void Clear(Color color, bool updateDisplay = false)

Parameters

Type	Name	Description
Meadow.Color	color	Color to set display
System.Boolean	updateDisplay	Update the display immediately when true

DrawBitmap(int, int, int, int, byte[], Color, ScaleFactor)

Writes a 1-bit bitmap stored in a byte array

View Source

Declaration

protected void DrawBitmap(int x, int y, int width, int height, byte[] bitmap, Color color, ScaleFactor scaleFactor = ScaleFactor.X1)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner of the bitmap
System.Int32	y	Ordinate of the top left corner of the bitmap
System.Int32	width	Width of the bitmap in pixels
System.Int32	height	Height of the bitmap in pixels
System.Byte[]	bitmap	Bitmap to display
Meadow.Color	color	The color of the bitmap
Meadow.Foundation.Graphics.ScaleFactor	scaleFactor	The integer scale factor (default is 1)

DrawBitmap(int, int, int, int, byte[], ScaleFactor)

Writes a 1-bit bitmap to the buffer - used for font rendering

View Source

Declaration

protected void DrawBitmap(int x, int y, int width, int height, byte[] bitmap, ScaleFactor scaleFactor = ScaleFactor.X1)

Parameters

Type	Name	Description
System.Int32	x	Abscissa of the top left corner of the bitmap
System.Int32	y	Ordinate of the top left corner of the bitmap
System.Int32	width	Width of the bitmap in pixels
System.Int32	height	Height of the bitmap in pixels
System.Byte[]	bitmap	Bitmap to display
Meadow.Foundation.Graphics.ScaleFactor	scaleFactor	The integer scale factor (default is 1)

GetXForRotation(int, int)

Get x pixel position for the current graphics rotation

View Source

Declaration

public int GetXForRotation(int x, int y)

Returns

System.Int32

Parameters

Type	Name	Description
System.Int32	x	The non-rotated x position
System.Int32	y	The non-rotated y position

GetYForRotation(int, int)

Get y pixel position for the current graphics rotation

View Source

Declaration

public int GetYForRotation(int x, int y)

Returns

System.Int32

Parameters

Type	Name	Description
System.Int32	x	The non-rotated x position
System.Int32	y	The non-rotated y position

DrawPath(GraphicsPath, bool, bool)

Draw a graphics path

View Source

Declaration

public void DrawPath(GraphicsPath path, bool enabled, bool filled = false)

Parameters

Type	Name	Description
Meadow.Foundation.Graphics.GraphicsPath	path	The path
System.Boolean	enabled	Should pixels be enabled (on) or disabled (off)
System.Boolean	filled	Fill the path (true) or draw the outline (false, default)

DrawPath(GraphicsPath, bool)

Draw a graphics path

View Source

Declaration

public void DrawPath(GraphicsPath path, bool filled = false)

Parameters

Type	Name	Description
Meadow.Foundation.Graphics.GraphicsPath	path	The path
System.Boolean	filled	Fill the path (true) or draw the outline (false, default)

DrawPath(GraphicsPath, Color, bool)

Draw a graphics path

View Source

Declaration

public void DrawPath(GraphicsPath path, Color color, bool filled = false)

Parameters

Type	Name	Description
Meadow.Foundation.Graphics.GraphicsPath	path	The path
Meadow.Color	color	The color to draw the path
System.Boolean	filled	Fill the path (true) or draw the outline (false, default)

FillPath(GraphicsPath, Color)

Draw a filled graphics path

View Source

Declaration

protected void FillPath(GraphicsPath path, Color fillColor)

Parameters

Type	Name	Description
Meadow.Foundation.Graphics.GraphicsPath	path	The path
Meadow.Color	fillColor	The color to fill the path

Write(string)

Write text to the display

View Source

Declaration

public void Write(string text)

Parameters

Type	Name	Description
System.String	text	The text

Exceptions

System.Exception
Throws if no font is set

WriteLine(string, byte, bool)

Write a line of text in White

View Source

Declaration

public void WriteLine(string text, byte lineNumber, bool showCursor = false)

Parameters

Type	Name	Description
System.String	text	The text
System.Byte	lineNumber	The line to write
System.Boolean	showCursor	True to show the cursor

Exceptions

System.Exception
Throws if no font is set

WriteLine(string, byte, Color, bool)

Write a line of text

View Source

Declaration

public void WriteLine(string text, byte lineNumber, Color textColor, bool showCursor = false)

Parameters

Type	Name	Description
System.String	text	The text
System.Byte	lineNumber	The line to write
Meadow.Color	textColor	Optional color to use for drawing the text
System.Boolean	showCursor	True to show the cursor

Exceptions

System.Exception
Throws if no font is set

ClearLines()

Clear all lines of text

View Source

Declaration

public void ClearLines()

ClearLine(byte)

Clear a single line of text

View Source

Declaration

public void ClearLine(byte lineNumber)

Parameters

Type	Name	Description
System.Byte	lineNumber	The line to clear

SetCursorPosition(byte, byte)

Set the cursor position relative to the text

View Source

Declaration

public void SetCursorPosition(byte column, byte line)

Parameters

Type	Name	Description
System.Byte	column	The text column
System.Byte	line	The line column

Implements

• Meadow.Peripherals.Displays.ITextDisplay
• Meadow.Peripherals.Displays.IDisplay