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Update ProgressBar.cs

pull/11555/head
Jumar Macato 3 years ago
parent
df22fb29bc
commit
08a01d1fd8
1 changed files with 43 additions and 46 deletions
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  1. 89
      src/Avalonia.Controls/ProgressBar.cs

89
src/Avalonia.Controls/ProgressBar.cs
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@ -174,18 +174,13 @@ namespace Avalonia.Controls
/// </remarks>
public double Percentage
{
get { return _percentage; }
get => _percentage;
private set { SetAndRaise(PercentageProperty, ref _percentage, value); }
}
static ProgressBar()
{
ValueProperty.OverrideMetadata<ProgressBar>(new(defaultBindingMode: BindingMode.OneWay));
ValueProperty.Changed.AddClassHandler<ProgressBar>((x, _) => x.UpdateIndicatorWhenPropChanged());
MinimumProperty.Changed.AddClassHandler<ProgressBar>((x, _) => x.UpdateIndicatorWhenPropChanged());
MaximumProperty.Changed.AddClassHandler<ProgressBar>((x, _) => x.UpdateIndicatorWhenPropChanged());
IsIndeterminateProperty.Changed.AddClassHandler<ProgressBar>((x, _) => x.UpdateIndicatorWhenPropChanged());
OrientationProperty.Changed.AddClassHandler<ProgressBar>((x, _) => x.UpdateIndicatorWhenPropChanged());
}
/// <summary>
@ -251,6 +246,15 @@ namespace Avalonia.Controls
{
base.OnPropertyChanged(change);
if (change.Property == ValueProperty ||
change.Property == MinimumProperty ||
change.Property == MaximumProperty ||
change.Property == IsIndeterminateProperty ||
change.Property == OrientationProperty)
{
UpdateIndicator();
}
if (change.Property == IsIndeterminateProperty)
{
UpdatePseudoClasses(change.GetNewValue<bool>(), null);
@ -286,57 +290,50 @@ namespace Avalonia.Controls
// Gets the size of the parent indicator container
var barSize = _indicator?.VisualParent?.Bounds.Size ?? Bounds.Size;
if (_indicator != null)
if (_indicator == null) return;
if (IsIndeterminate)
{
if (IsIndeterminate)
{
// Pulled from ModernWPF.
// Pulled from ModernWPF.
var dim = Orientation == Orientation.Horizontal ? barSize.Width : barSize.Height;
var barIndicatorWidth = dim * 0.4; // Indicator width at 40% of ProgressBar
var barIndicatorWidth2 = dim * 0.6; // Indicator width at 60% of ProgressBar
var dim = Orientation == Orientation.Horizontal ? barSize.Width : barSize.Height;
var barIndicatorWidth = dim * 0.4; // Indicator width at 40% of ProgressBar
var barIndicatorWidth2 = dim * 0.6; // Indicator width at 60% of ProgressBar
TemplateSettings.ContainerWidth = barIndicatorWidth;
TemplateSettings.Container2Width = barIndicatorWidth2;
TemplateSettings.ContainerWidth = barIndicatorWidth;
TemplateSettings.Container2Width = barIndicatorWidth2;
TemplateSettings.ContainerAnimationStartPosition = barIndicatorWidth * -1.8; // Position at -180%
TemplateSettings.ContainerAnimationEndPosition = barIndicatorWidth * 3.0; // Position at 300%
TemplateSettings.ContainerAnimationStartPosition = barIndicatorWidth * -1.8; // Position at -180%
TemplateSettings.ContainerAnimationEndPosition = barIndicatorWidth * 3.0; // Position at 300%
TemplateSettings.Container2AnimationStartPosition = barIndicatorWidth2 * -1.5; // Position at -150%
TemplateSettings.Container2AnimationEndPosition = barIndicatorWidth2 * 1.66; // Position at 166%
TemplateSettings.Container2AnimationStartPosition = barIndicatorWidth2 * -1.5; // Position at -150%
TemplateSettings.Container2AnimationEndPosition = barIndicatorWidth2 * 1.66; // Position at 166%
TemplateSettings.IndeterminateStartingOffset = -dim;
TemplateSettings.IndeterminateEndingOffset = dim;
}
else
{
var percent = Math.Abs(Maximum - Minimum) < double.Epsilon ?
1.0 :
(Value - Minimum) / (Maximum - Minimum);
TemplateSettings.IndeterminateStartingOffset = -dim;
TemplateSettings.IndeterminateEndingOffset = dim;
// When the Orientation changed, the indicator's Width or Height should set to double.NaN.
// Indicator size calculation should consider the ProgressBar's Padding property setting
if (Orientation == Orientation.Horizontal)
{
_indicator.Width = (barSize.Width - _indicator.Margin.Left - _indicator.Margin.Right) * percent;
_indicator.Height = double.NaN;
}
else
{
var percent = Math.Abs(Maximum - Minimum) < double.Epsilon ?
1.0 :
(Value - Minimum) / (Maximum - Minimum);
// When the Orientation changed, the indicator's Width or Height should set to double.NaN.
// Indicator size calculation should consider the ProgressBar's Padding property setting
if (Orientation == Orientation.Horizontal)
{
_indicator.Width = (barSize.Width - _indicator.Margin.Left - _indicator.Margin.Right) * percent;
_indicator.Height = double.NaN;
}
else
{
_indicator.Width = double.NaN;
_indicator.Height = (barSize.Height - _indicator.Margin.Top - _indicator.Margin.Bottom) *
percent;
}
Percentage = percent * 100;
_indicator.Width = double.NaN;
_indicator.Height = (barSize.Height - _indicator.Margin.Top - _indicator.Margin.Bottom) *
percent;
}
}
}
private void UpdateIndicatorWhenPropChanged()
{
UpdateIndicator();
Percentage = percent * 100;
}
}
private void UpdatePseudoClasses(

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