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54 changes: 54 additions & 0 deletions
54
GammaJul.ReSharper.EnhancedTooltip/Presentation/IconScaling.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| using System; | ||
| using System.Windows; | ||
| using System.Windows.Documents; | ||
| using System.Windows.Media; | ||
| using JetBrains.Annotations; | ||
| using JetBrains.Util; | ||
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|
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| namespace GammaJul.ReSharper.EnhancedTooltip.Presentation { | ||
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| public static class IconScaling { | ||
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| public static readonly DependencyProperty IsScalingWithFontSizeProperty = DependencyProperty.RegisterAttached( | ||
| "IsScalingWithFontSize", | ||
| typeof(bool), | ||
| typeof(IconScaling), | ||
| new FrameworkPropertyMetadata(BooleanBoxes.False, OnFontSizeForScaleChanged)); | ||
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| public static double GetIsScalingWithFontSize([NotNull] DependencyObject owner) { | ||
| if (owner == null) | ||
| throw new ArgumentNullException("owner"); | ||
| return (double) owner.GetValue(IsScalingWithFontSizeProperty); | ||
| } | ||
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| public static void SetIsScalingWithFontSize([NotNull] DependencyObject owner, bool value) { | ||
| if (owner == null) | ||
| throw new ArgumentNullException("owner"); | ||
| owner.SetValue(IsScalingWithFontSizeProperty, value); | ||
| } | ||
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| private static void OnFontSizeForScaleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { | ||
| var element = d as FrameworkElement; | ||
| if (element == null) | ||
| return; | ||
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| FontFamily fontFamily = TextElement.GetFontFamily(element); | ||
| if (fontFamily == null) | ||
| return; | ||
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| double fontSize = TextElement.GetFontSize(element); | ||
| if (Double.IsNaN(fontSize)) | ||
| return; | ||
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| double size = fontFamily.LineSpacing * fontSize; | ||
| if (size < 18.0) { | ||
| // Scaling isn't a real need at these small sizes, use the best looking 16x16 instead. | ||
| size = 16.0; | ||
| } | ||
| element.Width = element.Height = size; | ||
| } | ||
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| } | ||
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| } |
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