Class EPaperTriColorBase

Provide an interface for ePaper 3 color displays

Assembly: EPaper.dll

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public abstract class EPaperTriColorBase : EPaperBase, ISpiPeripheral, IDisposable, IGraphicsDisplay

Inheritance: System.Object -> Meadow.Foundation.Displays.EPaperBase

Derived:
Meadow.Foundation.Displays.Epd4in2bV2, Meadow.Foundation.Displays.Il0373, Meadow.Foundation.Displays.Il0376F, Meadow.Foundation.Displays.Il0398, Meadow.Foundation.Displays.Il91874, Meadow.Foundation.Displays.Ssd1680, Meadow.Foundation.Displays.Ssd1681, Meadow.Foundation.Displays.Uc8151c

Implements:
Meadow.Hardware.ISpiPeripheral, System.IDisposable, Meadow.Foundation.Graphics.IGraphicsDisplay

Properties

EnabledColor

The color to draw when a pixel is enabled

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public Color EnabledColor { get; }

DisabledColor

The color to draw when a pixel is disabled

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public Color DisabledColor { get; }

IsBlackInverted

Is the black pixel data inverted

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protected abstract bool IsBlackInverted { get; }

IsColorInverted

Is the color pixel data inverted

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protected abstract bool IsColorInverted { get; }

ColorMode

Display color mode

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public ColorMode ColorMode { get; }

SupportedColorModes

The Color mode supported by the display

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public ColorMode SupportedColorModes { get; }

Width

Width of display in pixels

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public virtual int Width { get; }

Height

Height of display in pixels

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public virtual int Height { get; }

PixelBuffer

The pixel buffer - not directly accessible Use buffer.BlackBuffer and buffer.ColorBuffer to access byte arrays

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public IPixelBuffer PixelBuffer { get; }

Fields

imageBuffer

The buffer the holds the black pixel data for the display

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protected Buffer2bppEPaper imageBuffer

Methods

CreateBuffer(int, int)

Create an offscreen buffer for the display

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protected virtual void CreateBuffer(int width, int height)

Parameters

Type	Name	Description
System.Int32	width	The width in pixels
System.Int32	height	The height in pixels

Initialize()

Initialize the display

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protected abstract void Initialize()

Clear(bool)

Clear the display buffer

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public void Clear(bool updateDisplay = false)

Parameters

Type	Name	Description
System.Boolean	updateDisplay	Update the display if true

Fill(Color, bool)

Fill the display buffer with a color

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public void Fill(Color color, bool updateDisplay = false)

Parameters

Type	Name	Description
Meadow.Color	color	The color - normalized to black, white or color
System.Boolean	updateDisplay	Refresh the display if true

Fill(int, int, int, int, Color)

Fill a region of the display buffer with a color

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public void Fill(int x, int y, int width, int height, Color color)

Parameters

Type	Name	Description
System.Int32	x	The x location
System.Int32	y	The y location
System.Int32	width	The width to fill in pixels
System.Int32	height	The height to fill in pixels
Meadow.Color	color	The color to fill - normalized to black, white or color

Clear(bool, bool)

Clear the display buffer

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public void Clear(bool enabled, bool updateDisplay = false)

Parameters

Type	Name	Description
System.Boolean	enabled	If true, fill with the enabled color (default is white)
System.Boolean	updateDisplay	If true, refresh the display

DrawPixel(int, int, bool)

Draw a pixel

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

Parameters

Type	Name	Description
System.Int32	x	The x location in pixels
System.Int32	y	The y location in pixels
System.Boolean	enabled	If true, use the enabled color (default is white)

DrawBlackPixel(int, int, bool)

Draw a black pixel

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

Parameters

Type	Name	Description
System.Int32	x	The x location in pixels
System.Int32	y	The y location in pixels
System.Boolean	enabled	If true, use the enabled color (default is white)

InvertPixel(int, int)

Invert a pixel

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public void InvertPixel(int x, int y)

Parameters

Type	Name	Description
System.Int32	x	The x location in pixels
System.Int32	y	The y location in pixels

DrawColoredPixel(int, int, bool)

Set a colored pixel (on or off)

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public void DrawColoredPixel(int x, int y, bool isOn)

Parameters

Type	Name	Description
System.Int32	x	The x pixel location
System.Int32	y	The y pixel location
System.Boolean	isOn	True for on, false for off

DrawPixel(int, int, Color)

Draw a pixel

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

Parameters

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

WriteBuffer(int, int, IPixelBuffer)

Write a buffer to the display buffer

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public void WriteBuffer(int x, int y, IPixelBuffer displayBuffer)

Parameters

Type	Name	Description
System.Int32	x	The x position in pixels to write the buffer
System.Int32	y	The y position in pixels to write the buffer
Meadow.Foundation.Graphics.Buffers.IPixelBuffer	displayBuffer	The buffer to write

SendCommand(Command)

Send a command to the display

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protected void SendCommand(EPaperTriColorBase.Command command)

Parameters

Type	Name	Description
Meadow.Foundation.Displays.EPaperTriColorBase.Command	command	The command

Show()

Update the display

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public virtual void Show()

Exceptions

System.NotImplementedException

Show(int, int, int, int)

Update a region of the display from the offscreen buffer

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

Parameters

Type	Name	Description
System.Int32	left	Left bounds in pixels
System.Int32	top	Top bounds in pixels
System.Int32	right	Right bounds in pixels
System.Int32	bottom	Bottom bounds in pixels

Implements

• Meadow.Hardware.ISpiPeripheral
• System.IDisposable
• Meadow.Foundation.Graphics.IGraphicsDisplay