public void Print(string message, Color background, Color foreground)
{
if (senseHat == null)
{
return;
}
// Get the characters to scroll.
IEnumerable <SingleColorCharacter> characters = font.GetChars(message);
// Create the character renderer.
SingleColorCharacterRenderer characterRenderer = new SingleColorCharacterRenderer(_ => foreground);
// Create the text scroller.
var textScroller = new TextScroller <SingleColorCharacter>(
senseHat.Display,
characterRenderer,
characters);
while (textScroller.Step())
{
// Draw the background.
senseHat.Display.Fill(background);
// Draw the scroll text.
textScroller.Render();
// Update the physical display.
senseHat.Display.Update();
// Pause for a short while.
waitEvent.Wait(TimeSpan.FromMilliseconds(50));
}
}
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));
}
}
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;
}
}
