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feat: add key handling.

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This commit is contained in:
rabbitism
2023-07-31 18:18:38 +08:00
parent 85f67a9c61
commit 3e3fe0a4b7
2 changed files with 82 additions and 6 deletions
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40
src/Ursa/Controls/ImageViewer/ImageViewer.cs
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@@ -72,10 +72,29 @@ public class ImageViewer: TemplatedControl
get => _translateY;
set => SetAndRaise(TranslateYProperty, ref _translateY, value);
}
public static readonly StyledProperty<double> SmallChangeProperty = AvaloniaProperty.Register<ImageViewer, double>(
nameof(SmallChange), defaultValue: 1);
public double SmallChange
{
get => GetValue(SmallChangeProperty);
set => SetValue(SmallChangeProperty, value);
}
public static readonly StyledProperty<double> LargeChangeProperty = AvaloniaProperty.Register<ImageViewer, double>(
nameof(LargeChange), defaultValue: 10);
public double LargeChange
{
get => GetValue(LargeChangeProperty);
set => SetValue(LargeChangeProperty, value);
}
static ImageViewer()
{
FocusableProperty.OverrideDefaultValue<ImageViewer>(true);
OverlayerProperty.Changed.AddClassHandler<ImageViewer>((o, e) => o.OnOverlayerChanged(e));
SourceProperty.Changed.AddClassHandler<ImageViewer>((o, e) => o.OnSourceChanged(e));
TranslateXProperty.Changed.AddClassHandler<ImageViewer>((o,e)=>o.OnTranslateXChanged(e));
@@ -201,4 +220,25 @@ public class ImageViewer: TemplatedControl
PseudoClasses.Set(PC_Moving, false);
_moving = false;
}
protected override void OnKeyDown(KeyEventArgs e)
{
double step = e.KeyModifiers.HasFlag(KeyModifiers.Control) ? LargeChange : SmallChange;
switch (e.Key)
{
case Key.Left:
TranslateX -= step;
break;
case Key.Right:
TranslateX += step;
break;
case Key.Up:
TranslateY -= step;
break;
case Key.Down:
TranslateY += step;
break;
}
base.OnKeyDown(e);
}
}