EllipseButton CreateBaseButton <T>(T icon, double scale)
{
var button = new EllipseButton()
{
Width = BUTTON_SIZE,
Height = BUTTON_SIZE,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Bottom,
Margin = new Thickness(0),
RenderTransform = new CompositeTransform()
{
TranslateX = 0,
TranslateY = 0,
ScaleX = scale,
ScaleY = scale,
CenterX = BUTTON_SIZE / 2,
CenterY = BUTTON_SIZE,
},
};
button.Clicked += ElementTapped;
if (typeof(T) == typeof(BitmapImage))
{
button.Icon = icon as BitmapImage;
}
else if (typeof(T) == typeof(DataTemplate))
{
button.IconTemplate = icon as DataTemplate;
}
return(button);
}
/// <summary>
/// Clear all buttons and create new buttons.
/// </summary>
/// <param name="info"></param>
void UpdateCandidates(ShootModeInfo info)
{
if (info == null)
{
return;
}
var targetShootMode = info.ShootModeCapability.Current;
var selectedIndex = FindCandidateIndex(info.ShootModeCapability, targetShootMode);
int currentIndex = 0;
Buttons.Children.Clear();
foreach (var i in info.ShootModeCapability.Candidates)
{
var scale = i == targetShootMode ? 1.0 : 0.6;
double newX = (currentIndex - selectedIndex) * 50;
if (newX < 0)
{
newX -= 30;
}
else if (newX > 0)
{
newX += 30;
}
EllipseButton button = null;
if (selectedIndex == currentIndex)
{
if (CurrentModeButtonTemplate != null)
{
button = CreateBaseButton(CurrentModeButtonTemplate, scale);
}
else
{
button = CreateBaseButton(CurrentModeButtonImage, scale);
}
}
else
{
if (info.IconTemplates?.ContainsKey(i) ?? false)
{
button = CreateBaseButton(info.IconTemplates[i], scale);
}
else if (info.Icons?.ContainsKey(i) ?? false)
{
button = CreateBaseButton(info.Icons[i], scale);
}
}
if (button != null)
{
Buttons.Children.Add(button);
(button.RenderTransform as CompositeTransform).TranslateX = newX;
}
currentIndex++;
}
}