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https://gitee.com/csharpui/CPF.git
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494 lines
24 KiB
C#
494 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using CPF.Drawing;
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using System.ComponentModel;
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namespace CPF.Controls
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{
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/// <summary>
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/// 为所有 Panel 元素提供基类。 使用 Panel 元素放置和排列UIElement，对于Panel的继承者的子对象的如果尺寸超过Panel对齐方式是左上角而不是居中
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/// </summary>
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[Description("为所有 Panel 元素提供基类。 使用 Panel 元素放置和排列UIElement，对于Panel的继承者的子对象的如果尺寸超过Panel对齐方式是左上角而不是居中")]
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public class Panel : UIElement
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{
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/// <summary>
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/// 背景填充
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/// </summary>
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[UIPropertyMetadata(null, UIPropertyOptions.AffectsRender)]
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public ViewFill Background
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{
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get { return (ViewFill)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// Gets or sets the font family used to draw the control's text.
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/// </summary>
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[UIPropertyMetadata("宋体", UIPropertyOptions.AffectsRender | UIPropertyOptions.Inherits)]
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public string FontFamily
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{
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get { return (string)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// Gets or sets the size of the control's text in points.
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/// </summary>
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[UIPropertyMetadata(12f, UIPropertyOptions.AffectsRender | UIPropertyOptions.AffectsMeasure | UIPropertyOptions.Inherits)]
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public float FontSize
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{
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get { return (float)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// Gets or sets the font style used to draw the control's text.
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/// </summary>
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[UIPropertyMetadata(FontStyles.Regular, UIPropertyOptions.AffectsRender | UIPropertyOptions.AffectsMeasure | UIPropertyOptions.Inherits)]
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public FontStyles FontStyle
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{
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get { return (FontStyles)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 表示一个文本修饰，它是可添加到文本的视觉装饰（如下划线）。字符串格式： overline/Underline/Strikethrough [width[,Solid/Dash/Dot/DashDot/DashDotDot]] [color]
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/// </summary>
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[UIPropertyMetadata(typeof(TextDecoration), "", UIPropertyOptions.AffectsRender | UIPropertyOptions.Inherits)]
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[Description("表示一个文本修饰，它是可添加到文本的视觉装饰（如下划线）。字符串格式： overline/Underline/Strikethrough/none [width[,Solid/Dash/Dot/DashDot/DashDotDot]] [color]")]
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public TextDecoration TextDecoration
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{
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get { return (TextDecoration)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// Gets or sets the brush used to draw the control's text and other foreground elements.
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/// </summary>
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[UIPropertyMetadata(typeof(ViewFill), "Black", UIPropertyOptions.AffectsRender | UIPropertyOptions.Inherits)]
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public ViewFill Foreground
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{
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get { return (ViewFill)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 边框线条填充
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/// </summary>
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[Description("边框线条填充")]
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[UIPropertyMetadata(null, UIPropertyOptions.AffectsRender)]
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public ViewFill BorderFill
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{
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get { return (ViewFill)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 获取或设置线条类型
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/// </summary>
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[Description("获取或设置线条类型")]
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[UIPropertyMetadata(typeof(Stroke), "0", UIPropertyOptions.AffectsMeasure | UIPropertyOptions.AffectsRender)]
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public Stroke BorderStroke
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{
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get { return (Stroke)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 四周边框粗细
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/// </summary>
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[Description("四周边框粗细")]
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[UIPropertyMetadata(typeof(Thickness), "0", UIPropertyOptions.AffectsMeasure | UIPropertyOptions.AffectsRender)]
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public Thickness BorderThickness
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{
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get { return GetValue<Thickness>(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 获取或设置一个值，该值表示将 Border 的角倒圆的程度。
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/// </summary>
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[Description("获取或设置一个值，该值表示将 Border 的角倒圆的程度。")]
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[UIPropertyMetadata(typeof(CornerRadius), "0", UIPropertyOptions.AffectsRender)]
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public CornerRadius CornerRadius
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{
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get { return (CornerRadius)GetValue(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 边框类型
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/// </summary>
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[UIPropertyMetadata(BorderType.BorderStroke, UIPropertyOptions.AffectsMeasure | UIPropertyOptions.AffectsRender)]
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public BorderType BorderType
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{
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get { return GetValue<BorderType>(); }
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set { SetValue(value); }
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}
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/// <summary>
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/// 定义一个控件组，一般由多个元素组成，在设计器中，子元素和该控件为一个控件组，点击子元素拖动时，将作为整体拖动整个控件组。
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/// </summary>
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[Description("定义一个控件组，一般由多个元素组成，在设计器中，子元素和该控件为一个控件组，点击子元素拖动时，将作为整体拖动整个控件组。如果该控件被子元素盖住，按Alt+Ctrl键加鼠标左键可以选中该控件。按住Alt键可以移动子元素。")]
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public bool IsGroup
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{
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get { return GetValue<bool>(); }
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set { SetValue(value); }
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}
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public Panel()
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{
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}
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/// <summary>
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/// 子元素
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/// </summary>
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[NotCpfProperty]
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public virtual new UIElementCollection Children
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{
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get
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{
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return base.Children;
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}
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}
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//Collection<UIElement> bind;
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//protected override bool OnSetValue(string propertyName, ref object value)
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//{
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// if (propertyName == nameof(Children))
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// {
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// if (bind != null)
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// {
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// bind.CollectionChanged -= List_CollectionChanged;
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// bind = null;
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// }
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// if (value is Collection<UIElement> list)
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// {
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// bind = list;
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// base.Children.Clear();
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// foreach (var item in list)
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// {
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// base.Children.Add(item);
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// }
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// list.CollectionChanged += List_CollectionChanged;
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// }
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// else if (value == null)
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// {
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// base.Children.Clear();
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// }
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// else
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// {
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// throw new Exception("Children只能支持Collection<UIElement>类型绑定");
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// }
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// value = base.Children;
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// }
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// return base.OnSetValue(propertyName, ref value);
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//}
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//private void List_CollectionChanged(object sender, CollectionChangedEventArgs<UIElement> e)
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//{
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// switch (e.Action)
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// {
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// case CollectionChangedAction.Add:
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// base.Children.Insert(e.Index, e.NewItem);
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// break;
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// case CollectionChangedAction.Remove:
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// base.Children.RemoveAt(e.Index);
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// break;
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// case CollectionChangedAction.Replace:
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// base.Children.RemoveAt(e.Index);
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// base.Children.Insert(e.Index, e.NewItem);
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// break;
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// case CollectionChangedAction.Sort:
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// base.Children.ElementList.Clear();
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// foreach (var item in (sender as Collection<UIElement>))
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// {
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// base.Children.ElementList.Add(item);
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// }
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// InvalidateMeasure();
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// break;
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// default:
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// break;
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// }
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//}
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//protected override object OnGetDefaultValue(PropertyMetadataAttribute pm)
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//{
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// if (pm.PropertyName == nameof(Children))
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// {
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// return base.Children;
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// }
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// return base.OnGetDefaultValue(pm);
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//}
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protected override Size MeasureOverride(in Size availableSize)
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{
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var ava = availableSize;
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Size size;
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if (BorderType == BorderType.BorderStroke)
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{
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var b = BorderStroke;
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ava.Width = Math.Max(0, ava.Width - b.Width - b.Width);
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ava.Height = Math.Max(0, ava.Height - b.Width - b.Width);
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size = base.MeasureOverride(ava);
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size.Width = size.Width + b.Width + b.Width;
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size.Height = size.Height + b.Width + b.Width;
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}
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else
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{
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var b = BorderThickness;
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ava.Width = Math.Max(0, ava.Width - b.Left - b.Right);
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ava.Height = Math.Max(0, ava.Height - b.Top - b.Bottom);
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size = base.MeasureOverride(ava);
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size.Width = size.Width + b.Left + b.Right;
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size.Height = size.Height + b.Top + b.Bottom;
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}
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return size;
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}
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protected override Size ArrangeOverride(in Size finalSize)
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{
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var rect = new Rect(0, 0, finalSize.Width, finalSize.Height);
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if (BorderType == BorderType.BorderStroke)
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{
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var b = BorderStroke;
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rect.Location = new Point(b.Width, b.Width);
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rect.Size = new Size(Math.Max(0, rect.Width - b.Width - b.Width), Math.Max(0, rect.Height - b.Width - b.Width));
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}
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else
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{
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var b = BorderThickness;
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rect.Location = new Point(b.Left, b.Top);
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rect.Size = new Size(Math.Max(0, rect.Width - b.Left - b.Right), Math.Max(0, rect.Height - b.Top - b.Bottom));
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}
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foreach (UIElement child in Children)
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{
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child.Arrange(rect);
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}
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return finalSize;
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}
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protected override void OnRender(DrawingContext dc)
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{
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var cr = CornerRadius;
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var s = ActualSize;
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var rect = new Rect(0, 0, Math.Max(0, s.Width), Math.Max(0, s.Height));
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if (BorderType == BorderType.BorderStroke)
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{
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var bs = BorderStroke;
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using (var path = new PathGeometry())
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{
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if (UseLayoutRounding)
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{
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bs.Width = (float)Math.Round(bs.Width * Root.RenderScaling) / Root.RenderScaling;
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}
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var w2 = bs.Width / 2;
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path.BeginFigure(w2 + cr.TopLeft + rect.Left, w2 + rect.Top);
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path.LineTo(rect.Right - w2 - cr.TopRight, w2 + rect.Top);
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path.ArcTo(new Point(rect.Right - w2, w2 + cr.TopRight + rect.Top), new Size(cr.TopRight, cr.TopRight), 90, true, false);
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path.LineTo(rect.Right - w2, rect.Bottom - cr.BottomRight - w2);
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path.ArcTo(new Point(rect.Right - w2 - cr.BottomRight, rect.Bottom - w2), new Size(cr.BottomRight, cr.BottomRight), 90, true, false);
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path.LineTo(w2 + cr.BottomLeft + rect.Left, rect.Bottom - w2);
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path.ArcTo(new Point(w2 + rect.Left, rect.Bottom - w2 - cr.BottomLeft), new Size(cr.BottomLeft, cr.BottomLeft), 90, true, false);
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path.LineTo(w2 + rect.Left, w2 + cr.TopLeft + rect.Top);
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path.ArcTo(new Point(w2 + cr.TopLeft + rect.Left, w2 + rect.Top), new Size(cr.TopLeft, cr.TopLeft), 90, true, false);
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path.EndFigure(true);
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var ba = Background;
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if (ba != null)
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{
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using (var brush = ba.CreateBrush(rect, Root.RenderScaling))
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{
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dc.FillPath(brush, path);
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}
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}
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if (bs.Width > 0)
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{
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var bf = BorderFill;
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if (bf != null)
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{
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using (var brush = bf.CreateBrush(rect, Root.RenderScaling))
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{
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dc.DrawPath(brush, bs, path);
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}
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}
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}
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}
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}
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else
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{
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var bt = BorderThickness;
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if (!cr.IsZero)
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{
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using (var path = new PathGeometry())
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{
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using (var p = new PathGeometry())
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{
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var w2 = 0.5f;
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p.BeginFigure(w2 + cr.TopLeft + bt.Left + rect.Left, w2 + bt.Top + rect.Top);
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p.LineTo(rect.Right - w2 - cr.TopRight - bt.Right, w2 + bt.Top + rect.Top);
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p.ArcTo(new Point(rect.Right - w2 - bt.Right, w2 + cr.TopRight + bt.Top + rect.Top), new Size(cr.TopRight, cr.TopRight), 90, true, false);
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p.LineTo(rect.Right - w2 - bt.Right, rect.Bottom - cr.BottomRight - w2 - bt.Bottom);
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p.ArcTo(new Point(rect.Right - w2 - cr.BottomRight - bt.Right, rect.Bottom - w2 - bt.Bottom), new Size(cr.BottomRight, cr.BottomRight), 90, true, false);
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p.LineTo(w2 + cr.BottomLeft + bt.Left + rect.Left, rect.Bottom - w2 - bt.Bottom);
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p.ArcTo(new Point(w2 + bt.Left + rect.Left, rect.Bottom - w2 - cr.BottomLeft - bt.Bottom), new Size(cr.BottomLeft, cr.BottomLeft), 90, true, false);
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p.LineTo(w2 + bt.Left + rect.Left, w2 + cr.TopLeft + bt.Top + rect.Top);
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p.ArcTo(new Point(w2 + cr.TopLeft + bt.Left + rect.Left, w2 + bt.Top + rect.Top), new Size(cr.TopLeft, cr.TopLeft), 90, true, false);
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p.EndFigure(true);
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//w2 = 1;
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path.BeginFigure(w2 + cr.TopLeft + rect.Left, w2 + rect.Top);
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path.LineTo(rect.Right - w2 - cr.TopRight, w2 + rect.Top);
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path.ArcTo(new Point(rect.Right - w2, w2 + cr.TopRight + rect.Top), new Size(cr.TopRight, cr.TopRight), 90, true, false);
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path.LineTo(rect.Right - w2, rect.Bottom - cr.BottomRight - w2);
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path.ArcTo(new Point(rect.Right - w2 - cr.BottomRight, rect.Bottom - w2), new Size(cr.BottomRight, cr.BottomRight), 90, true, false);
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path.LineTo(w2 + cr.BottomLeft + rect.Left, rect.Bottom - w2);
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path.ArcTo(new Point(w2 + rect.Left, rect.Bottom - w2 - cr.BottomLeft), new Size(cr.BottomLeft, cr.BottomLeft), 90, true, false);
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path.LineTo(w2 + rect.Left, w2 + cr.TopLeft + rect.Top);
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path.ArcTo(new Point(w2 + cr.TopLeft + rect.Left, w2 + rect.Top), new Size(cr.TopLeft, cr.TopLeft), 90, true, false);
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path.EndFigure(true);
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using (var geo = new Geometry(path))
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{
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using (var ge = new Geometry(p))
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{
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geo.Xor(ge);
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var bf = BorderFill;
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Brush brush = null;
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var str = new Stroke(1);
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var ww = 0.8f;
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if (bf != null)
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{
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brush = bf.CreateBrush(rect, Root.RenderScaling);
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}
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if (brush != null)
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{
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dc.FillGeometry(brush, geo);
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}
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var ba = Background;
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if (ba != null)
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{
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using (var brush1 = ba.CreateBrush(rect, Root.RenderScaling))
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{
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dc.FillGeometry(brush1, ge);
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dc.DrawPath(brush1, new Stroke(0.8f), p);
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}
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}
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if (brush != null)
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{
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if (cr.TopLeft > 0 && (bt.Top > 0 || bt.Left > 0))
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{
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using (var pp = new PathGeometry())
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{
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pp.BeginFigure(ww + rect.Left, ww + cr.TopLeft + rect.Top);
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pp.ArcTo(new Point(ww + cr.TopLeft + rect.Left, ww + rect.Top), new Size(cr.TopLeft, cr.TopLeft), 90, true, false);
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pp.EndFigure(false);
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dc.DrawPath(brush, str, pp);
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}
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}
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if (cr.TopRight > 0 && (bt.Top > 0 || bt.Right > 0))
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{
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using (var pp = new PathGeometry())
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{
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pp.BeginFigure(rect.Right - ww - cr.TopRight, ww + rect.Top);
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pp.ArcTo(new Point(rect.Right - ww, ww + cr.TopRight + rect.Top), new Size(cr.TopRight, cr.TopRight), 90, true, false);
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pp.EndFigure(false);
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dc.DrawPath(brush, str, pp);
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}
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}
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if (cr.BottomLeft > 0 && (bt.Bottom > 0 || bt.Left > 0))
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{
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using (var pp = new PathGeometry())
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{
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pp.BeginFigure(ww + cr.BottomLeft + rect.Left, rect.Bottom - ww);
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pp.ArcTo(new Point(ww + rect.Left, rect.Bottom - ww - cr.BottomLeft), new Size(cr.BottomLeft, cr.BottomLeft), 90, true, false);
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pp.EndFigure(false);
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dc.DrawPath(brush, str, pp);
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}
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}
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if (cr.BottomRight > 0 && (bt.Bottom > 0 || bt.Right > 0))
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{
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using (var pp = new PathGeometry())
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{
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pp.BeginFigure(rect.Right - ww, rect.Bottom - cr.BottomRight - ww);
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pp.ArcTo(new Point(rect.Right - ww - cr.BottomRight, rect.Bottom - ww), new Size(cr.BottomRight, cr.BottomRight), 90, true, false);
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pp.EndFigure(false);
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dc.DrawPath(brush, str, pp);
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}
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}
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ww = 0.5f;
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str = new Stroke(1);
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if (bt.Left > 0)
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{
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dc.DrawLine(str, brush, new Point(ww + rect.Left, ww + cr.TopLeft + rect.Top), new Point(ww + rect.Left, rect.Bottom - cr.BottomLeft - ww));
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}
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if (bt.Top > 0)
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{
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dc.DrawLine(str, brush, new Point(ww + cr.TopLeft + rect.Left, ww + rect.Top), new Point(rect.Right - ww - cr.TopRight, ww + rect.Top));
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}
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if (bt.Right > 0)
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{
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dc.DrawLine(str, brush, new Point(rect.Right - ww, ww + cr.TopRight + rect.Top), new Point(rect.Right - ww, rect.Bottom - cr.BottomRight - ww));
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}
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if (bt.Bottom > 0)
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{
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dc.DrawLine(str, brush, new Point(ww + cr.BottomLeft + rect.Left, rect.Bottom - ww), new Point(rect.Right - ww - cr.BottomRight, rect.Bottom - ww));
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}
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brush.Dispose();
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}
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}
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}
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
var bf = BorderFill;
|
||
if (UseLayoutRounding || !IsAntiAlias)
|
||
{
|
||
var sc = Root.RenderScaling;
|
||
bt.Left = (float)Math.Round(bt.Left * sc) / sc;
|
||
bt.Right = (float)Math.Round(bt.Right * sc) / sc;
|
||
bt.Top = (float)Math.Round(bt.Top * sc) / sc;
|
||
bt.Bottom = (float)Math.Round(bt.Bottom * sc) / sc;
|
||
}
|
||
if (bf != null)
|
||
{
|
||
using (var brush = bf.CreateBrush(rect, Root.RenderScaling))
|
||
{
|
||
if (bt.Top > 0)
|
||
{
|
||
dc.DrawLine(new Stroke(bt.Top), brush, new Point(rect.Left, bt.Top / 2 + rect.Top), new Point(rect.Right, bt.Top / 2 + rect.Top));
|
||
}
|
||
if (bt.Left > 0)
|
||
{
|
||
dc.DrawLine(new Stroke(bt.Left), brush, new Point(bt.Left / 2 + rect.Left, rect.Top), new Point(bt.Left / 2 + rect.Left, rect.Bottom));
|
||
}
|
||
if (bt.Right > 0)
|
||
{
|
||
dc.DrawLine(new Stroke(bt.Right), brush, new Point(rect.Right - bt.Right / 2, rect.Top), new Point(rect.Right - bt.Right / 2, rect.Bottom));
|
||
}
|
||
if (bt.Bottom > 0)
|
||
{
|
||
dc.DrawLine(new Stroke(bt.Bottom), brush, new Point(rect.Left, rect.Bottom - bt.Bottom / 2), new Point(rect.Right, rect.Bottom - bt.Bottom / 2));
|
||
}
|
||
}
|
||
}
|
||
var ba = Background;
|
||
if (ba != null)
|
||
{
|
||
using (var brush = ba.CreateBrush(rect, Root.RenderScaling))
|
||
{
|
||
dc.FillRectangle(brush, new Rect(bt.Left + rect.Left, bt.Top + rect.Top, Math.Max(0, rect.Width - bt.Left - bt.Right), Math.Max(0, rect.Height - bt.Top - bt.Bottom)));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
}
|