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Set thumb sizes of menu scroll bars to 25 percent of their scroll-able height

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This commit is contained in:
Peter Kirmeier 2023-08-18 21:36:03 +02:00
parent 4b5e75180c
commit cfd53b516e
2 changed files with 28 additions and 5 deletions
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4
Resources/ScrollBarStyles.xaml
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@ -165,7 +165,7 @@
<RepeatButton Style="{StaticResource ScrollBarPageButton}" Command="ScrollBar.PageUpCommand" />
</Track.DecreaseRepeatButton>
<Track.Thumb>
<Thumb Style="{StaticResource ScrollBarThumb}" Margin="0">
<Thumb Style="{StaticResource ScrollBarThumb}" Margin="0" MinHeight="10">
<Thumb.BorderBrush>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
@ -221,7 +221,7 @@
<RepeatButton Style="{StaticResource ScrollBarPageButton}" Command="ScrollBar.PageLeftCommand" />
</Track.DecreaseRepeatButton>
<Track.Thumb>
<Thumb Style="{StaticResource ScrollBarThumb}" Margin="0">
<Thumb Style="{StaticResource ScrollBarThumb}" Margin="0" MinWidth="10">
<Thumb.BorderBrush>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
<LinearGradientBrush.GradientStops>

29
UserInterface/Menu.xaml.cs
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@ -11,6 +11,7 @@ namespace SystemTrayMenu.UserInterface
using System.IO;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Input;
using System.Windows.Media;
@ -558,15 +559,15 @@ namespace SystemTrayMenu.UserInterface
if (IsLoaded)
{
AdjustWindowPositionInternal(originLocation);
AdjustWindowPositionAndInnerLayoutInternal(originLocation);
}
else
{
// Layout cannot be calculated during loading, postpone this event
Loaded += (_, _) => AdjustWindowPositionInternal(originLocation);
Loaded += (_, _) => AdjustWindowPositionAndInnerLayoutInternal(originLocation);
}
void AdjustWindowPositionInternal(in Point originLocation)
void AdjustWindowPositionAndInnerLayoutInternal(in Point originLocation)
{
double scaling = Math.Round(Scaling.Factor, 0, MidpointRounding.AwayFromZero);
double overlappingOffset = 0D;
@ -810,7 +811,29 @@ namespace SystemTrayMenu.UserInterface
windowFrame.CornerRadius = new CornerRadius(CornerRadius);
}
// Make sure we have latest values of all control sizes
UpdateLayout();
// Adjust size of scroll bar thumb
// See: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/controls/how-to-customize-the-thumb-size-on-a-scrollbar?view=netframeworkdesktop-4.8#create-a-scrollbar-with-a-fixed-thumb-size
ScrollBar? dgvSrollBar = dgv.FindVisualChildOfType<ScrollBar>(0);
if (dgvSrollBar != null)
{
Track? dgvSrollBarTrack = dgvSrollBar.FindVisualChildOfType<Track>(0);
if (dgvSrollBarTrack != null)
{
RepeatButton? dgvSrollBarLineButton = dgvSrollBar.FindVisualChildOfType<RepeatButton>(0);
Thumb? dgvSrollBarThumb = dgvSrollBarTrack.FindVisualChildOfType<Thumb>(0);
if (dgvSrollBarLineButton != null && dgvSrollBarThumb != null)
{
// Disable auto resizing
dgvSrollBarTrack.ViewportSize = double.NaN;
// We set the thumb size of the scroll bar to 25% of the thumbs space but at least to 10
dgvSrollBarThumb.Height = (dgv.ActualHeight - (dgvSrollBarLineButton.ActualHeight * 2)) * 0.25d;
}
}
}
}
}