public void ScrollBar_Should_Not_AutoHide_When_ViewportSize_Is_NaN()
{
var target = new ScrollBar();
target.Visibility = ScrollBarVisibility.Auto;
target.Minimum = 0;
target.Maximum = 100;
target.ViewportSize = double.NaN;
Assert.True(target.IsVisible);
}
public void ScrollBar_Should_Not_AutoHide_When_Visibility_Set_To_Visible()
{
var target = new ScrollBar();
target.Visibility = ScrollBarVisibility.Visible;
target.Minimum = 0;
target.Maximum = 100;
target.ViewportSize = 100;
Assert.True(target.IsVisible);
}
public void ScrollBar_Can_AutoHide()
{
var target = new ScrollBar();
target.Visibility = ScrollBarVisibility.Auto;
target.Minimum = 0;
target.Maximum = 100;
target.ViewportSize = 100;
Assert.False(target.IsVisible);
}
public void ScrollBar_Should_Hide_When_Visibility_Set_To_Hidden()
{
var target = new ScrollBar();
target.Visibility = ScrollBarVisibility.Hidden;
target.Minimum = 0;
target.Maximum = 100;
target.ViewportSize = 10;
Assert.False(target.IsVisible);
}
public void Setting_Track_Value_Should_Update_Value()
{
var target = new ScrollBar
{
Template = new FuncControlTemplate<ScrollBar>(Template),
};
target.ApplyTemplate();
var track = (Track)target.GetTemplateChildren().First(x => x.Name == "track");
track.Value = 50;
Assert.Equal(target.Value, 50);
}
public void Setting_Value_Should_Update_Track_Value()
{
var target = new ScrollBar
{
Template = new FuncControlTemplate<ScrollBar>(Template),
};
target.ApplyTemplate();
var track = target.GetTemplateChild<Track>("track");
target.Value = 50;
Assert.Equal(track.Value, 50);
}
private Control Template(ScrollBar control)
{
return new Border
{
Background = Brushes.Silver,
Content = new Track
{
Name = "track",
[~Track.MinimumProperty] = control[~ScrollBar.MinimumProperty],
[~Track.MaximumProperty] = control[~ScrollBar.MaximumProperty],
[~Track.ViewportSizeProperty] = control[~ScrollBar.ViewportSizeProperty],
[~Track.OrientationProperty] = control[~ScrollBar.OrientationProperty],
Thumb = new Thumb
{
Name = "thumb",
Template = ControlTemplate.Create<Thumb>(this.ThumbTemplate),
},
},
};
}
/// <summary>
/// The default template for the <see cref="ScrollBar"/> control.
/// </summary>
/// <param name="control">The control being styled.</param>
/// <returns>The root of the instantiated template.</returns>
public static Control Template(ScrollBar control)
{
return new Border
{
Background = Brushes.Silver,
Child = new Track
{
Name = "track",
[!Track.MinimumProperty] = control[!ScrollBar.MinimumProperty],
[!Track.MaximumProperty] = control[!ScrollBar.MaximumProperty],
[!!Track.ValueProperty] = control[!!ScrollBar.ValueProperty],
[!Track.ViewportSizeProperty] = control[!ScrollBar.ViewportSizeProperty],
[!Track.OrientationProperty] = control[!ScrollBar.OrientationProperty],
Thumb = new Thumb
{
Name = "thumb",
Template = new ControlTemplate<Thumb>(ThumbTemplate),
},
},
};
}
private static Control Template(ScrollBar control)
{
return new Border
{
Child = new Track
{
Name = "track",
[!Track.MinimumProperty] = control[!RangeBase.MinimumProperty],
[!Track.MaximumProperty] = control[!RangeBase.MaximumProperty],
[!!Track.ValueProperty] = control[!!RangeBase.ValueProperty],
[!Track.ViewportSizeProperty] = control[!ScrollBar.ViewportSizeProperty],
[!Track.OrientationProperty] = control[!ScrollBar.OrientationProperty],
Thumb = new Thumb
{
Template = new FuncControlTemplate<Thumb>(ThumbTemplate),
},
},
};
}
private static TabItem ImagesTab()
{
ScrollBar size;
return new TabItem
{
Header = "Images",
Content = new StackPanel
{
Orientation = Orientation.Vertical,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Gap = 8,
Children = new Controls
{
(size = new ScrollBar
{
Minimum = 100,
Maximum = 400,
Value = 100,
Orientation = Orientation.Horizontal,
}),
new ScrollViewer
{
Width = 200,
Height = 200,
CanScrollHorizontally = true,
Content = new Image
{
Source = new Bitmap("github_icon.png"),
[!Layoutable.WidthProperty] = size[!RangeBase.ValueProperty],
[!Layoutable.HeightProperty] = size[!RangeBase.ValueProperty],
},
},
new ProgressBar
{
[!RangeBase.MinimumProperty] = size[!RangeBase.MinimumProperty],
[!RangeBase.MaximumProperty] = size[!RangeBase.MaximumProperty],
[!RangeBase.ValueProperty] = size[!RangeBase.ValueProperty],
}
}
},
};
}
