c#-在WPF中使用矢量图形作为图标
作者:互联网
我的MVVM应用程序中具有MenuItems的以下基类
public class StandardMenuItem : MenuItemBase, IExecutableItem
{
...
public Image Icon { get; private set; }
...
}
我最初的想法是使用Image来支持我在MenuItems上显示的图标.现在,我开始在应用程序的前端使用这些MenuItem,并找到了我想使用的一流矢量图形库.
<ResourceDictionary x:Class="resources_icons_xaml"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<Canvas x:Key="appbar_acorn" Width="48" Height="48" Clip="F1 M 0,0L 48,0L 48,48L 0,48L 0,0">
<Path Width="22.3248" Height="25.8518" Canvas.Left="13.6757" Canvas.Top="11.4012" Stretch="Fill" Fill="{DynamicResource BlackBrush}" Data="F1 M 16.6309,18.6563C 17.1309,8.15625 29.8809,14.1563 29.8809,14.1563C 30.8809,11.1563 34.1308,11.4063 34.1308,11.4063C 33.5,12 34.6309,13.1563 34.6309,13.1563C 32.1309,13.1562 31.1309,14.9062 31.1309,14.9062C 41.1309,23.9062 32.6309,27.9063 32.6309,27.9062C 24.6309,24.9063 21.1309,22.1562 16.6309,18.6563 Z M 16.6309,19.9063C 21.6309,24.1563 25.1309,26.1562 31.6309,28.6562C 31.6309,28.6562 26.3809,39.1562 18.3809,36.1563C 18.3809,36.1563 18,38 16.3809,36.9063C 15,36 16.3809,34.9063 16.3809,34.9063C 16.3809,34.9063 10.1309,30.9062 16.6309,19.9063 Z "/>
</Canvas>
...
<ResourceDictionary/>
我的问题是,通过代码使用这些矢量图形似乎并不简单.我知道如何在XAML中包含此类图形
<!-- Include Resource Dictionary -->
<MenuItem Header="Show Difference Details"
ToolTip="Launch the grouped data file and analysis window."
IsEnabled="{Binding GroupedDataIsDifferent}"
Caliburn:Message.Attach="[Event Click] = [Action ShowDifferenceDetailsAsync()]">
<MenuItem.Icon>
<Rectangle Width="16" Height="16">
<Rectangle.Fill>
<VisualBrush Stretch="Uniform" Visual="{StaticResource appbar_column_two}" />
</Rectangle.Fill>
</Rectangle>
</MenuItem.Icon>
</MenuItem>
但这不是我的问题.我的问题是:
>如何为我的StandardMenuItem使用图标/图像中资源字典中的矢量图形?
>如果1.的答案是“您不能”,如何在代码中将矢量图形转换为图标?
谢谢你的时间.
编辑.我希望能够使用代码来拾取图形.所以对于我的菜单项,我有一个方法
public StandardMenuItem WithIcon(Assembly source, string path)
{
var manager = IoC.Get<IResourceManager>();
var iconSource = manager.GetBitmap(path, source.GetAssemblyName());
if (source != null)
{
IconSource = path;
}
return this;
}
我现在的问题是获取所需矢量图像的正确路径.可以说,在我的解决方案中,我的矢量图像位于“ Graphics / Icons.xaml”中,资源称为“ appbar_acorn”,如何引用呢?
解决方法:
干得好
首先将Icon属性更改为string
例如
public string Icon { get; private set; }
将图标值分配为要使用的图标的键
Icon = "appbar_acorn";
在资源中定义转换器
<l:StringToResourceConverter x:Key="StringToResourceConverter" />
l:指转换器的名称空间,例如xmlns:l =“ clr-namespace:CSharpWPF”
用法
<MenuItem Icon="{Binding Icon,Converter={StaticResource StringToResourceConverter}}"
Header="Menu"/>
结果
这是转换器类
namespace CSharpWPF
{
class StringToResourceConverter: IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return Application.Current.FindResource(value);
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
}
您可能需要调整图标的大小和在画布上的位置,在上面的示例中,我删除了Canvas.Left =“ 13.6757”& Canvas.Top =“ 11.4012”,但对于菜单图标来说仍然有点小
标签:vector-graphics,wpf,c 来源: https://codeday.me/bug/20191029/1957640.html