void bindTappedHandlers()
{
// Tapped and point handlers are always managed together
// So if one is set the other is also set.
if (TappedHandler != null)
{
return;
}
// Create the handlers
TappedHandler = (s, e) =>
{
TappedFlag = true;
e.Handled = false;
};
PointHandler = (s, e) =>
{
TappedFlag = true;
e.Handled = false;
};
// Bind them - this must happen on the UI thread
manager.InvokeOnUIThread(
() =>
{
manager.DisplayGrid.Tapped += TappedHandler;
manager.DisplayGrid.PointerPressed += PointHandler;
});
}
public void SetDisplayStringWidth(double width)
{
manager.InvokeOnUIThread(
() =>
{
displayTextBlock.Width = width;
});
}
public SnapsCoordinate GetTappedCoordinate()
{
SnapsCoordinate tappedPositionResult = new SnapsCoordinate();
AutoResetEvent GetTappedCompleteEvent = new AutoResetEvent(false);
manager.InvokeOnUIThread(
async() =>
{
tappedPositionResult = await GetTappedCoordinateAsync();
GetTappedCompleteEvent.Set();
});
GetTappedCompleteEvent.WaitOne();
return(tappedPositionResult);
}
public void SetBackgroundColor(int red, int green, int blue)
{
manager.InvokeOnUIThread(
() =>
{
Color newBackground = Color.FromArgb(
255,
SnapsManager.ColorClamp(red),
SnapsManager.ColorClamp(green),
SnapsManager.ColorClamp(blue));
SolidColorBrush brush = new SolidColorBrush(newBackground);
Background = brush;
}
);
}
public string DoReadMultiLineString(string prompt)
{
AutoResetEvent gotTextEvent = new AutoResetEvent(false);
string result = "";
manager.InvokeOnUIThread(
async() =>
{
TextInputTextBox.AcceptsReturn = true;
TextInputTextBox.Height = TextBoxMultiLineHeight;
result = await ReadStringAsync(prompt);
TextInputTextBox.AcceptsReturn = false;
TextInputTextBox.Height = TextBoxSingleLineHeight;
gotTextEvent.Set();
}
);
gotTextEvent.WaitOne();
return(result);
}
public string DoSelectFromButtonArray(string[] buttonTexts)
{
if (buttonTexts.Length > MAX_NO_OF_BUTTONS)
{
throw new Exception("Too many buttons in call to SelectButton");
}
AutoResetEvent gotTextEvent = new AutoResetEvent(false);
string result = "";
manager.InvokeOnUIThread(
async() =>
{
result = await SelectButtonAsync(buttonTexts);
gotTextEvent.Set();
}
);
gotTextEvent.WaitOne();
return(result);
}
public void SpeakString(string message)
{
AutoResetEvent speakCompletedEvent = new AutoResetEvent(false);
manager.InvokeOnUIThread(
async() =>
{
if (soundOutputElement != null)
{
SpeechSynthesizer synth = new Windows.Media.SpeechSynthesis.SpeechSynthesizer();
// Generate the audio stream from plain text.
SpeechSynthesisStream stream = await synth.SynthesizeTextToStreamAsync(message);
// Send the stream to the media object.
soundOutputElement.SetSource(stream, stream.ContentType);
await PlayCompleteSoundAsync();
speakCompletedEvent.Set();
}
}
);
speakCompletedEvent.WaitOne();
}
public LightPanel(SnapsManager manager, double width, double height, int xCells, int yCells)
{
this.manager = manager;
this.Width = width;
this.Height = height;
if (xCells > 32 || yCells > 32)
{
throw new Exception("Maximum panel dimension exceeded. No more than 32 panels in each direction");
}
AutoResetEvent lightPanelBuiltEvent = new AutoResetEvent(false);
manager.InvokeOnUIThread(
async() =>
{
if (this.Opacity != 1)
{
await FadeElements.FadeElementOpacityAsync(this, 0, 1, new TimeSpan(0, 0, 1));
}
clearLightPanel();
lightPanels = new Rectangle[xCells, yCells];
float panelWidth = (float)this.ActualWidth / xCells;
float panelHeight = (float)this.ActualHeight / yCells;
for (int x = 0; x < xCells; x++)
{
for (int y = 0; y < yCells; y++)
{
Rectangle p = new Rectangle();
p.Fill = new SolidColorBrush(Colors.White);
p.Stroke = new SolidColorBrush(Colors.Black);
p.Width = panelWidth;
p.Height = panelHeight;
Canvas.SetLeft(p, x * panelWidth);
Canvas.SetTop(p, y * panelHeight);
lightPanels[x, y] = p;
this.Children.Add(p);
}
}
lightPanelBuiltEvent.Set();
});
lightPanelBuiltEvent.WaitOne();
}
public string DoReadPassword(string prompt)
{
AutoResetEvent gotTextEvent = new AutoResetEvent(false);
string result = "";
manager.InvokeOnUIThread(
async() =>
{
result = await ReadPasswordAsync(prompt);
gotTextEvent.Set();
}
);
gotTextEvent.WaitOne();
return(result);
}
public void SetPanelCell(int x, int y, int red, int green, int blue)
{
if (lightPanels == null)
{
throw new Exception("No LightPanel has been created");
}
AutoResetEvent setPanelCompletedEvent = new AutoResetEvent(false);
manager.InvokeOnUIThread(
() =>
{
if (x < 0)
{
x = 0;
}
if (x >= lightPanels.GetLength(0))
{
x = lightPanels.GetLength(0) - 1;
}
if (y < 0)
{
y = 0;
}
if (y >= lightPanels.GetLength(1))
{
y = lightPanels.GetLength(1) - 1;
}
Color color = Color.FromArgb(
255,
SnapsManager.ColorClamp(red),
SnapsManager.ColorClamp(green),
SnapsManager.ColorClamp(blue));
Brush b = new SolidColorBrush(color);
lightPanels[x, y].Fill = b;
//LightPanel[x, y].Stroke = b;
setPanelCompletedEvent.Set();
});
setPanelCompletedEvent.WaitOne();
}
