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c# - 缩小 MahApps.Metro 中的 ProgressRing

转载 作者:太空狗 更新时间:2023-10-29 21:28:12 25 4
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看起来 MahApps.Metro ProgressRing 控件默认的最小尺寸为 60x60。

ProgressRing 有一个名为“IsLarge”的属性,但即使将其设置为“False”,它似乎也无法使 ProgressRing 小于 60x60。

显然,更改 Height 和 Width 属性也不会对此产生影响。

在 GitHUb 上看作为 ProgressRing 的实际 c# 代码,看起来有几个属性可以影响椭圆直径等,但这些属性是私有(private)属性,不能从外部调用设置。

我怎样才能把它变小?说 20x20 还是 30x30?

在下面的代码中,我指定了 IsLarge=False,并将大小设置为 30x30,但它仍然默认为 60x60。

<Window x:Class="WpfApplication3.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Colours.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Fonts.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Controls.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/Orange.xaml" />
<ResourceDictionary Source="pack://application:,,,/MahApps.Metro;component/Styles/Accents/BaseLight.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
<Grid>
<Controls:ProgressRing IsActive="True" IsLarge="False" Height="30" Width="30"></Controls:ProgressRing>
</Grid>
</Window>

以下是在 GitHub - MahApps.Metro 上找到的“ProgressRing.cs”文件中的代码片段

namespace MahApps.Metro.Controls
{
[TemplateVisualState(Name = "Large", GroupName = "SizeStates")]
[TemplateVisualState(Name = "Small", GroupName = "SizeStates")]
[TemplateVisualState(Name = "Inactive", GroupName = "ActiveStates")]
[TemplateVisualState(Name = "Active", GroupName = "ActiveStates")]
public class ProgressRing : Control


private void SetMaxSideLength(double width)
{
MaxSideLength = width <= 60 ? 60.0 : width;
}

private void SetEllipseDiameter(double width)
{
if (width <= 60)
{
EllipseDiameter = 6.0;
}
else
{
EllipseDiameter = width * 0.1 + 6;
}
}

private void UpdateLargeState()
{
Action action;

if (IsLarge)
action = () => VisualStateManager.GoToState(this, "Large", true);
else
action = () => VisualStateManager.GoToState(this, "Small", true);

if (_deferredActions != null)
_deferredActions.Add(action);

else
action();
}

编辑:MainWindow.xaml

<Grid>
<Controls:ProgressRing x:Name="PRing" IsLarge="False" MinHeight="15" MinWidth="15" Height="15" Width="15"></Controls:ProgressRing>
</Grid>

编辑:MainWindow.xaml.cs

    public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
PRing.EllipseDiameter = 5;
}
}

最佳答案

您必须为 ProgressRing 找到一种样式,并为自己设置 WidthHeight。对我来说,样式位于:MahApps.Metro master\MahApps.Metro\Themes\ProgressRing.xaml:

<Style TargetType="{x:Type Controls:ProgressRing}">
<Setter Property="Foreground" Value="{DynamicResource AccentColorBrush}"/>
<Setter Property="IsHitTestVisible" Value="False"/>
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="MinHeight" Value="30"/>
<Setter Property="MinWidth" Value="30"/>

...

默认有60WidthHeight。据我了解,简单设置 WidthHeight 仅直接影响椭圆。

编辑:

什么会使环更小,您可以通过代码使用参数 EllipseDiameterEllipseOffset,因为 XAML 它们将不可用(如 私有(private))。

private void SetEllipseDiameter(double width)
{
if (width <= 60)
{
EllipseDiameter = 3.0; // as default 6.0
}
else
{
EllipseDiameter = width * 0.1 + 6;
}
}

private void SetEllipseOffset(double width)
{
if (width <= 60)
{
EllipseOffset = new Thickness(0, 12, 0, 0); // as default 24
}
else
{
EllipseOffset = new Thickness(0, width * 0.4 + 12, 0, 0);
}
}

EDIT2:

要设置Ellipse 的直径可以按如下方式完成。我们确实有属性EllipseDiameter setter public:

public double EllipseDiameter
{
get
{
return (double)GetValue(EllipseDiameterProperty);
}

set // default as private
{
SetValue(EllipseDiameterProperty, value);
}
}

SetEllipseDiameter 中正在检查 Ellipse 的大小,如果 Width 小于 60,则设置 6.0。我们注释掉。

private void SetEllipseDiameter(double width)
{
//if (width <= 60)
//{
// EllipseDiameter = 6.0;
//}
//else
//{
// EllipseDiameter = width * 0.1 + 6;
//}
}

然后在 Style 中设置 Ellipse 的直径:

<Setter Property="MinHeight" Value="30"/>
<Setter Property="MinWidth" Value="30"/>
<Setter Property="EllipseDiameter" Value="3.0" />

EllipseOffset 也是如此。他也是,一开始是private,并检查小于 60 的 Width:

private void SetEllipseOffset(double width)
{
// you can drop this check
if (width <= 60)
{
EllipseOffset = new Thickness(0, 24, 0, 0);
}
else
{
EllipseOffset = new Thickness(0, width * 0.4 + 24, 0, 0);
}
}

使用这些参数进行这些操作,您可以配置ProgressRing 控件的WidthHeight

关于c# - 缩小 MahApps.Metro 中的 ProgressRing,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17774185/

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