public SenseHat()
{
InitSenseHat().Wait();
// Recreate the font from the serialized bytes.
font = SingleColorFont.Deserialize(FontBytes);
}
protected override void Execute()
{
senseHat.Display.Clear();
senseHat.Display.Fill(Colors.White);
senseHat.Display.Direction = DisplayDirection.Deg90;
var font = SingleColorFont.Deserialize(FontBytes);
var characters = font.GetChars("The quick brown fox jumps over the lazy dog. Hello Raspberry Pi. ");
var characterRenderer = new SingleColorCharacterRenderer(GetCharacterColor);
var textScroller = new TextScroller <SingleColorCharacter>(senseHat.Display, characterRenderer, characters);
while (!cancellationTokenSource.Token.IsCancellationRequested)
{
if (!textScroller.Step())
{
textScroller.Reset();
}
senseHat.Display.Clear();
textScroller.Render();
senseHat.Display.Update();
waitEvent.Wait(100);
}
}
private static void SingleColorTinyFontWork()
{
var bitmap = new Bitmap(@"Font\TinyBWFont.png");
const string chars = " 0123456789ABCDEF+-%*=.:!?/\\'";
SingleColorFont tinyFont = SingleColorFontBuilder.GetSingleColorFont(bitmap, chars);
byte[] fontBytes = tinyFont.Serialize().ToArray();
var fontBytesAsCode = ToCSharp(fontBytes);
}
public override void Run()
{
// Get a copy of the rainbow colors.
SenseHat.Display.Reset();
SenseHat.Display.CopyScreenToColors(_rainbowColors);
// Recreate the font from the serialized bytes.
SingleColorFont font = SingleColorFont.Deserialize(FontBytes);
// Get the characters to scroll.
IEnumerable <SingleColorCharacter> characters = font.GetChars(_scrollText);
// Create the character renderer.
SingleColorCharacterRenderer characterRenderer = new SingleColorCharacterRenderer(GetCharacterColor);
// Create the text scroller.
var textScroller = new TextScroller <SingleColorCharacter>(
SenseHat.Display,
characterRenderer,
characters);
while (true)
{
// Step the scroller.
if (!textScroller.Step())
{
// Reset the scroller when reaching the end.
textScroller.Reset();
}
// Draw the background.
FillDisplay(textScroller.ScrollPixelOffset);
// Draw the scroll text.
textScroller.Render();
// Update the physical display.
SenseHat.Display.Update();
// Should the drawing mode change?
if (SenseHat.Joystick.Update() && (SenseHat.Joystick.EnterKey == KeyState.Pressing))
{
// The middle button is just pressed.
SwitchToNextScrollMode();
}
// Pause for a short while.
Sleep(TimeSpan.FromMilliseconds(50));
}
}
public SenseHat()
{
try
{
InitSenseHat().Wait();
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
// Recreate the font from the serialized bytes.
font = SingleColorFont.Deserialize(FontBytes);
}
private static void SingleColorFontWork()
{
var bitmap = new Bitmap(@"Font\BWFont.png");
const string chars = " ABCDEFGHIJKLMNOPQRSTUVWXYZÅÄÖÉÜabcdefghijklmnopqrstuvwxyzåäöéü0123456789.,?!\"#$%&-+*:;/\\<>()'`=";
SingleColorFont singleColorFont = SingleColorFontBuilder.GetSingleColorFont(bitmap, chars);
byte[] fontBytes = singleColorFont.Serialize().ToArray();
var fontBytesAsCode = ToCSharp(fontBytes);
Tuple <string, Bitmap> tuple = SingleColorFontBuilder.GetFontBitmap(fontBytes);
tuple.Item2.Save(@"Font\BWFont_recreated.png");
}
static TinyFont()
{
// These bytes are calculated by the RPi.SenseHat.Tools.
// See the method "SingleColorTinyFontWork"!
var fontBytes = new byte[]
{
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x30, 0x00, 0x00, 0x1f, 0x11, 0x1f, 0xff, 0x00, 0x31, 0x00, 0x00,
0x12, 0x1f, 0x10, 0xff, 0x00, 0x32, 0x00, 0x00, 0x1d, 0x15, 0x17, 0xff, 0x00, 0x33, 0x00, 0x00, 0x15, 0x15, 0x1f,
0xff, 0x00, 0x34, 0x00, 0x00, 0x07, 0x04, 0x1f, 0xff, 0x00, 0x35, 0x00, 0x00, 0x17, 0x15, 0x1d, 0xff, 0x00, 0x36,
0x00, 0x00, 0x1f, 0x15, 0x1c, 0xff, 0x00, 0x37, 0x00, 0x00, 0x01, 0x1d, 0x07, 0xff, 0x00, 0x38, 0x00, 0x00, 0x1f,
0x15, 0x1f, 0xff, 0x00, 0x39, 0x00, 0x00, 0x07, 0x15, 0x1f, 0xff, 0x00, 0x41, 0x00, 0x00, 0x1e, 0x05, 0x1e, 0xff,
0x00, 0x42, 0x00, 0x00, 0x1f, 0x15, 0x0a, 0xff, 0x00, 0x43, 0x00, 0x00, 0x0e, 0x11, 0x11, 0xff, 0x00, 0x44, 0x00,
0x00, 0x1f, 0x11, 0x0e, 0xff, 0x00, 0x45, 0x00, 0x00, 0x1f, 0x15, 0x11, 0xff, 0x00, 0x46, 0x00, 0x00, 0x1f, 0x05,
0x01, 0xff, 0x00, 0x2b, 0x00, 0x00, 0x04, 0x0e, 0x04, 0xff, 0x00, 0x2d, 0x00, 0x00, 0x04, 0x04, 0x04, 0xff, 0x00,
0x25, 0x00, 0x00, 0x19, 0x04, 0x13, 0xff, 0x00, 0x2a, 0x00, 0x00, 0x15, 0x0e, 0x15, 0xff, 0x00, 0x3d, 0x00, 0x00,
0x0a, 0x0a, 0x0a, 0xff, 0x00, 0x2e, 0x00, 0x00, 0x00, 0x10, 0x00, 0xff, 0x00, 0x3a, 0x00, 0x00, 0x00, 0x0a, 0x00,
0xff, 0x00, 0x21, 0x00, 0x00, 0x00, 0x17, 0x00, 0xff, 0x00, 0x3f, 0x00, 0x00, 0x01, 0x15, 0x07, 0xff, 0x00, 0x2f,
0x00, 0x00, 0x18, 0x04, 0x03, 0xff, 0x00, 0x5c, 0x00, 0x00, 0x03, 0x04, 0x18, 0xff, 0x00, 0x27, 0x00, 0x00, 0x00,
0x03, 0x00
};
Font = SingleColorFont.Deserialize(fontBytes);
}
private async void StartScrollInternal()
{
try
{
SenseHat = await SenseHatFactory.GetSenseHat();
}
catch { }
if (SenseHat == null)
{
return;
}
SenseHat.Display.Direction = DisplayDirection.Deg270;
// Get a copy of the rainbow colors.
SenseHat.Display.Reset();
SenseHat.Display.CopyScreenToColors(_rainbowColors);
// Recreate the font from the serialized bytes.
SingleColorFont font = SingleColorFont.Deserialize(FontBytes);
// Get the characters to scroll.
IEnumerable <SingleColorCharacter> characters = font.GetChars(_scrollText);
// Create the character renderer.
SingleColorCharacterRenderer characterRenderer = new SingleColorCharacterRenderer(GetCharacterColor);
// Create the text scroller.
var textScroller = new TextScroller <SingleColorCharacter>(
SenseHat.Display,
characterRenderer,
characters);
while (true)
{
if (this.scrollTaskCancellationTokenSource.IsCancellationRequested)
{
SenseHat.Display.Clear();
SenseHat.Display.Update();
break;
}
// Step the scroller.
if (!textScroller.Step())
{
// Reset the scroller when reaching the end.
textScroller.Reset();
}
// Draw the background.
FillDisplay(textScroller.ScrollPixelOffset);
// Draw the scroll text.
textScroller.Render();
// Update the physical display.
SenseHat.Display.Update();
// Pause for a short while.
await Task.Delay(TimeSpan.FromMilliseconds(50));
}
}
public async Task display()
{
try
{
_scrollText = "Device Bot - Azure IoT Hub";
// Get a copy of the rainbow colors.
senseHat = await SenseHatFactory.GetSenseHat();
senseHat.Display.Reset();
senseHat.Display.CopyScreenToColors(_rainbowColors);
// Recreate the font from the serialized bytes.
SingleColorFont font = SingleColorFont.Deserialize(FontBytes);
// Get the characters to scroll.
IEnumerable <SingleColorCharacter> characters = font.GetChars(_scrollText);
// Create the character renderer.
SingleColorCharacterRenderer characterRenderer = new SingleColorCharacterRenderer(GetCharacterColor);
// Create the text scroller.
var textScroller = new TextScroller <SingleColorCharacter>(
senseHat.Display,
characterRenderer,
characters);
while (true)
{
// Step the scroller.
if (!textScroller.Step())
{
// Reset the scroller when reaching the end.
textScroller.Reset();
}
// Draw the background.
FillDisplay(textScroller.ScrollPixelOffset);
// Draw the scroll text.
textScroller.Render();
// Update the physical display.
senseHat.Display.Update();
// Should the drawing mode change?
if (senseHat.Joystick.Update() && (senseHat.Joystick.EnterKey == KeyState.Pressing))
{
// The middle button is just pressed.
SwitchToNextScrollMode();
}
// Pause for a short while.
//Task.wait(TimeSpan.FromMilliseconds(50));
await Task.Delay(500);
}
}
catch (Exception ex)
{
throw ex;
}
}
