using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Documents;
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using System.Windows.Input;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using System.Windows.Navigation;
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using System.Windows.Shapes;
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namespace XHandler.Controls
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{
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/// <summary>
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/// 按照步骤 1a 或 1b 操作，然后执行步骤 2 以在 XAML 文件中使用此自定义控件。
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///
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/// 步骤 1a) 在当前项目中存在的 XAML 文件中使用该自定义控件。
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/// 将此 XmlNamespace 特性添加到要使用该特性的标记文件的根
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/// 元素中:
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///
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/// xmlns:MyNamespace="clr-namespace:XHandler.Controls"
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///
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///
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/// 步骤 1b) 在其他项目中存在的 XAML 文件中使用该自定义控件。
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/// 将此 XmlNamespace 特性添加到要使用该特性的标记文件的根
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/// 元素中:
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///
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/// xmlns:MyNamespace="clr-namespace:XHandler.Controls;assembly=XHandler.Controls"
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///
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/// 您还需要添加一个从 XAML 文件所在的项目到此项目的项目引用，
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/// 并重新生成以避免编译错误:
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///
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/// 在解决方案资源管理器中右击目标项目，然后依次单击
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/// “添加引用”->“项目”->[浏览查找并选择此项目]
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///
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///
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/// 步骤 2)
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/// 继续操作并在 XAML 文件中使用控件。
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///
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/// <MyNamespace:TipsChannel/>
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///
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/// </summary>
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public class TipsChannel : Grid
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{
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private int mark = 0;//sizechange执行次数
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public List<int> chs = new List<int>();
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public event EventHandler SelectedChangedEvent;
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static TipsChannel()
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{
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DefaultStyleKeyProperty.OverrideMetadata(typeof(TipsChannel), new FrameworkPropertyMetadata(typeof(TipsChannel)));
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}
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/// <summary>
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/// 通道数, 目前仅支持8通道
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/// </summary>
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public int TotalChannels
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{
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get { return (int)GetValue(TotalChannelsProperty); }
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set { SetValue(TotalChannelsProperty, value); }
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}
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public static readonly DependencyProperty TotalChannelsProperty =
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DependencyProperty.Register("TotalChannels", typeof(int), typeof(TipsChannel), new PropertyMetadata(0, OnTotalChannelChanged));
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#region 仅在第一次初始化界面时,设置界面的通道数目
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private static void OnTotalChannelChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
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{
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//TipsChannel tipsChannel = sender as TipsChannel;
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//int count = (int)e.NewValue;
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//tipsChannel.SetTotalChannelCount(count);
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}
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#endregion
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///// <summary>
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///// 选中通道集合
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///// </summary>
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//public string Selection
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//{
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// get { return (string)GetValue(SelectionProperty); }
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// set { SetValue(SelectionProperty, value); }
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//}
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//public static readonly DependencyProperty SelectionProperty =
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// DependencyProperty.Register("Selection", typeof(string), typeof(TipsChannel), new PropertyMetadata(""));
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/// <summary>
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/// 已被选中通道集合
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/// </summary>
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public List<int> SelectedChannels
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{
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get { return (List<int>)GetValue(SelectedChannelsProperty); }
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set { SetValue(SelectedChannelsProperty, value);}
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}
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public static readonly DependencyProperty SelectedChannelsProperty =
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DependencyProperty.Register("SelectedChannels", typeof(List<int>), typeof(TipsChannel), new PropertyMetadata(new List<int> (),OnSelectedChanged));
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#region 被选择的通道数变化事件
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private static void OnSelectedChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
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{
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TipsChannel tipsChannel = sender as TipsChannel;
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tipsChannel.SetSelectedChannels();
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}
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#endregion
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#region 重新设置被选择的通道
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public void SetSelectedChannels()
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{
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foreach (var child in Children)
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{
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if (child is Ellipse)
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{
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Ellipse ellipse = (Ellipse)child;
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//判断是什么
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if (SelectedChannels.Contains((int)ellipse.Tag))
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{
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ellipse.Fill = FindResource("blueBrush") as SolidColorBrush;
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ellipse.Stroke = FindResource("blueBrush") as SolidColorBrush;
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}
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else
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{
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ellipse.Fill = Brushes.White;
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ellipse.Stroke = new SolidColorBrush(Color.FromRgb(0x61, 0x64, 0x67));
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}
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}
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}
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}
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#endregion
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#region 所有通道是否开启选择编辑
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/// <summary>
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/// 可编辑
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/// </summary>
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public bool CanEdit
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{
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get { return (bool)GetValue(CanEditProperty); }
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set { SetValue(CanEditProperty, value); }
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}
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public static readonly DependencyProperty CanEditProperty =
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DependencyProperty.Register("CanEdit", typeof(bool), typeof(TipsChannel), new PropertyMetadata(false));
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#endregion
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Rectangle MouseRect;
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Point startPoint;
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bool isMouseDown = false;
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#region 构造函数
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public TipsChannel()
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{
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InitializeComponent();
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}
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#endregion
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#region 初始化函数
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void InitializeComponent()
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{
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Initialized += TipsChannel_Initialized;
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//SizeChanged += TipsChannel_SizeChanged;
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PreviewMouseDown += TipsChannel_PreviewMouseDown;
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PreviewMouseMove += TipsChannel_PreviewMouseMove;
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PreviewMouseUp += TipsChannel_PreviewMouseUp;
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MouseLeave += TipsChannel_MouseLeave;
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}
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#endregion
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#region 鼠标离开控件显示区域后，更改鼠标按下状态标志
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private void TipsChannel_MouseLeave(object sender, MouseEventArgs e)
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{
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isMouseDown = false;
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}
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#endregion
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#region 鼠标抬起控件显示区域后，更改鼠标按下状态标志
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private void TipsChannel_PreviewMouseUp(object sender, MouseButtonEventArgs e)
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{
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isMouseDown = false;
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}
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#endregion
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#region 鼠标被按下后，在控件内选择通道事件
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private void TipsChannel_PreviewMouseMove(object sender, MouseEventArgs e)
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{
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if (!CanEdit)
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return;
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if (isMouseDown)
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{
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Point curPos = e.GetPosition(this);
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if ((Math.Abs(curPos.X - startPoint.X) > SystemParameters.MinimumHorizontalDragDistance)
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|| (Math.Abs(curPos.Y - startPoint.Y) > SystemParameters.MinimumVerticalDragDistance))
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{
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Rect rect = GetCorrectRect(startPoint, curPos);
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foreach (var child in Children)
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{
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if (child is Ellipse)
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{
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Ellipse ellipse = (Ellipse)child;
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GeneralTransform generalTransform1 = ellipse.TransformToAncestor(this);
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Point currentPoint = generalTransform1.Transform(new Point(0, 0));
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Rect childRect = new Rect(currentPoint.X, currentPoint.Y, ellipse.ActualWidth, ellipse.ActualHeight);
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if (childRect.IntersectsWith(rect))
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{
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ellipse.Fill = FindResource("blueBrush") as SolidColorBrush;
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ellipse.Stroke = FindResource("blueBrush") as SolidColorBrush;
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if (SelectedChannels.Contains((int)ellipse.Tag))
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{
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}
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else
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{
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SelectedChannels.Add((int)ellipse.Tag);
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}
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}
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}
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}
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}
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}
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}
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#endregion
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#region 获取当前鼠标选中的矩形区域
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Rect GetCorrectRect(Point start, Point end)
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{
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if (end.X < start.X)
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{
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double tmp = start.X;
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start.X = end.X;
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end.X = tmp;
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}
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if (end.Y < start.Y)
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{
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double tmp = start.Y;
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start.Y = end.Y;
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end.Y = tmp;
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}
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return new Rect(start.X, start.Y, end.X - start.X, end.Y - start.Y);
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}
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#endregion
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#region 鼠标按下后事件
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private void TipsChannel_PreviewMouseDown(object sender, MouseButtonEventArgs e)
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{
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if (!CanEdit)
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return;
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startPoint = e.GetPosition(this);
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HitTestResult result = VisualTreeHelper.HitTest(this, startPoint);
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if (result.VisualHit is Ellipse)
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{
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var a = (Ellipse)result.VisualHit;
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//if (SelectedChannels.Contains((int)a.Tag))
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//{
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// SelectedChannels.Remove((int)a.Tag);
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//}
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//else
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//{
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// SelectedChannels.Add((int)a.Tag);
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//}
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isMouseDown = true;
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ResetSelection(a);
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}
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}
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#endregion
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#region 重新设置当前选中的区域内的通道
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private void ResetSelection(Ellipse e)
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{
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foreach (var child in Children)
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{
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if (child is Ellipse)
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{
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Ellipse ellipse = (Ellipse)child;
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//判断是什么
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if (ellipse.Tag == e.Tag)//当前选中的看看是否已选中，如果选中则变为不选中，如果不选中则变为选中
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{
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if (SelectedChannels.Contains((int)e.Tag))
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{
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ellipse.Fill = Brushes.White;
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ellipse.Stroke = new SolidColorBrush(Color.FromRgb(0x61, 0x64, 0x67));
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SelectedChannels.Remove((int)e.Tag);
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}
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else
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{
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ellipse.Fill = FindResource("blueBrush") as SolidColorBrush;
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ellipse.Stroke = FindResource("blueBrush") as SolidColorBrush;
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SelectedChannels.Add((int)e.Tag);
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}
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}
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//ellipse.Fill = Brushes.White;
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//ellipse.Stroke = new SolidColorBrush(Color.FromRgb(0x61, 0x64, 0x67));
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}
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}
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chs = SelectedChannels;
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if (SelectedChangedEvent != null)
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{
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SelectedChangedEvent(this, EventArgs.Empty);
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}
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}
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#endregion
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//#region 控件显示外观大小变化事件
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//private void TipsChannel_SizeChanged(object sender, SizeChangedEventArgs e)
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//{
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// if(mark>=1)
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// {
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// return;
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// }
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// this.ColumnDefinitions.Clear();
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// this.RowDefinitions.Clear();
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// this.Children.Clear();
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// AddItems();
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// mark++;
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//}
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//#endregion
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#region 控件初始化事件, 根据设置的通道总数，构建界面通道显示
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private void TipsChannel_Initialized(object sender, EventArgs e)
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{
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//if (mark >= 1)
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//{
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// return;
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//}
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this.ColumnDefinitions.Clear();
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this.RowDefinitions.Clear();
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this.Children.Clear();
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AddItems();
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mark++;
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}
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#endregion
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#region 初始化控件内的通道数目
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private void AddItems()
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{
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if (TotalChannels > 8)
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TotalChannels = 8;
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this.RowDefinitions.Add(new RowDefinition());
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this.RowDefinitions.Add(new RowDefinition());
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for (int i = 0; i < TotalChannels; i++)
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{
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this.ColumnDefinitions.Add(new ColumnDefinition());
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}
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for (int i = 0; i < TotalChannels; i++)
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{
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Ellipse ellipse = new Ellipse()
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{
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Margin = new Thickness(4, 2, 4, 2),
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Width = 24,
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Height = 24,
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StrokeThickness = 1,
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Fill = FindResource("blueBrush") as SolidColorBrush,
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Stroke = FindResource("blueBrush") as SolidColorBrush,
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Tag = i + 1
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};
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this.Children.Add(ellipse);
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if (!SelectedChannels.Contains(i + 1))
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{
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SelectedChannels.Add(i + 1);
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}
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Grid.SetRow(ellipse, 0);
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Grid.SetColumn(ellipse, i);
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TextBlock tb = new TextBlock()
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{
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Text = (i + 1).ToString(),
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FontSize = 14,
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HorizontalAlignment = HorizontalAlignment.Center,
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};
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this.Children.Add(tb);
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Grid.SetRow(tb, 1);
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Grid.SetColumn(tb, i);
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}
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}
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#endregion
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#region 重新构建通道显示
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public void ResetChannelItems()
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{
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SelectedChannels.Clear();
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this.ColumnDefinitions.Clear();
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this.RowDefinitions.Clear();
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this.Children.Clear();
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int currentChannelTotal = TotalChannels;//当前通道总数量
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this.RowDefinitions.Add(new RowDefinition());
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this.RowDefinitions.Add(new RowDefinition());
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for (int i = 0; i < currentChannelTotal; i++)
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{
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this.ColumnDefinitions.Add(new ColumnDefinition());
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}
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for (int i = 0; i < currentChannelTotal; i++)
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{
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#region 构建通道示意圆圈
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Ellipse ellipse = new Ellipse()
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{
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Margin = new Thickness(4, 2, 4, 2),
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Width = 24,
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Height = 24,
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StrokeThickness = 1,
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Fill = FindResource("blueBrush") as SolidColorBrush,
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Stroke = FindResource("blueBrush") as SolidColorBrush,
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Tag = i + 1
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};
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this.Children.Add(ellipse);
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if (!SelectedChannels.Contains(i + 1))
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{
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SelectedChannels.Add(i + 1);
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}
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Grid.SetRow(ellipse, 0);
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Grid.SetColumn(ellipse, i);
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#endregion
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#region 构建通道编号文字
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TextBlock tb = new TextBlock()
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{
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Text = (i + 1).ToString(),
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FontSize = 14,
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HorizontalAlignment = HorizontalAlignment.Center,
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};
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this.Children.Add(tb);
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Grid.SetRow(tb, 1);
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Grid.SetColumn(tb, i);
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#endregion
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}
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}
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#endregion
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#region
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public void SetTotalChannelCount(int count)
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{
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mark = 0;
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this.ColumnDefinitions.Clear();
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this.RowDefinitions.Clear();
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this.Children.Clear();
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TotalChannels = count;
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AddItems();
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chs = SelectedChannels;
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}
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#endregion
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}
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}
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