103 lines
3.7 KiB
C#
103 lines
3.7 KiB
C#
using CPF.Drawing;
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using CPF.Platform;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Text;
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namespace CPF.Controls
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{
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/// <summary>
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/// 用于内嵌原生控件，一般来说原生控件无法使用渲染变换，无法调整ZIndex，只能在最前端，可能无法透明。一般尽可能少用该控件
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/// </summary>
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[Description("用于内嵌原生控件，一般来说原生控件无法使用渲染变换，无法调整ZIndex，只能在最前端，可能无法透明。一般尽可能少用该控件")]
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public class NativeElement : UIElement
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{
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/// <summary>
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/// 用于内嵌原生控件，一般来说原生控件无法使用渲染变换，无法调整ZIndex，只能在最前端，可能无法透明。一般尽可能少用该控件
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/// </summary>
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public NativeElement()
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{ }
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INativeImpl nativeImpl;
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protected override bool OnSetValue(string propertyName, ref object value)
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{
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if (propertyName == nameof(RenderTransform) || propertyName == nameof(Effect) || propertyName == nameof(ZIndex))
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{
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throw new NotSupportedException("不支持" + propertyName);
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}
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return base.OnSetValue(propertyName, ref value);
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}
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/// <summary>
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/// 设置对应平台的控件句柄
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/// </summary>
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[Description("设置对应平台的控件句柄")]
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public object Content
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{
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get { return GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 背景色，有些平台可能无法透明
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/// </summary>
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[Description("背景色，有些平台可能无法透明"), UIPropertyMetadata(typeof(Color), "#fff", UIPropertyOptions.AffectsRender)]
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public Color BackColor
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{
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get { return (Color)GetValue(); }
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set { SetValue(value); }
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}
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[Browsable(false)]
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public INativeImpl NativeImpl { get => nativeImpl; }
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[PropertyChanged(nameof(Content))]
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void OnContentChanged(object newValue, object oldValue, PropertyMetadataAttribute attribute)
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{
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nativeImpl?.SetContent(newValue);
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}
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[PropertyChanged(nameof(BackColor))]
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void OnBackColorChanged(object newValue, object oldValue, PropertyMetadataAttribute attribute)
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{
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nativeImpl?.SetBackColor((Color)newValue);
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}
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protected override void OnAttachedToVisualTree()
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{
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if (!DesignMode)
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{
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nativeImpl = Application.GetRuntimePlatform().CreateNative();
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nativeImpl.SetOwner(this);
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nativeImpl.SetContent(Content);
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nativeImpl.SetBackColor(BackColor);
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nativeImpl.SetParent(Root.ViewImpl);
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Root.LayoutManager.nativeElements.Add(this);
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}
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base.OnAttachedToVisualTree();
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}
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protected override void OnDetachedFromVisualTree()
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{
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nativeImpl?.SetParent(null);
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Root.LayoutManager.nativeElements.Remove(this);
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base.OnDetachedFromVisualTree();
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}
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protected override void OnRender(DrawingContext dc)
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{
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if (DesignMode)
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{
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using (var sb = new SolidColorBrush(BackColor))
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{
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dc.FillRectangle(sb, new Rect(0, 0, ActualSize.Width, ActualSize.Height));
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}
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}
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base.OnRender(dc);
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}
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protected override void Dispose(bool disposing)
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{
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nativeImpl?.Dispose();
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base.Dispose(disposing);
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}
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}
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}
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