仿以然胜甲修改

本次修改主要针对Desktop类

在第一篇中,Desktop类有一个问题就是不支持Rows设置为三或三以上的数

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.Generic;
namespace yrsj.Controls
{
    public class Desktop : Canvas
    {
        private string clickName = string.Empty;
        //记录单击控件名称
        private List<double> Tops = new List<double>();
        //Top位置坐标
        private List<CustomPanel> Panels = new List<CustomPanel>();
        //Panel集
        private int ctlNum = int.MaxValue;
        private int rowCtlNum = int.MinValue;
        private bool isLoaded = false;
        public static readonly DependencyProperty RowsProperty = DependencyProperty.Register("Rows", typeof(int), typeof(Desktop), new PropertyMetadata(1, RowsChanged));
        public int Rows
        {
            get
            {
                return (int)GetValue(RowsProperty);
            }
            set
            {
                SetValue(RowsProperty, value);
            }
        }
        private static void RowsChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
        {
            Desktop desktop = sender as Desktop;
            if (desktop == null) return;
            int rows = 0;
            if (e.NewValue != null) int.TryParse(e.NewValue.ToString(), out rows);
            if (rows > 0) desktop.rowCtlNum = (desktop.ctlNum / rows) + (desktop.ctlNum % rows > 0 ? 1 : 0);
        }
        public Desktop() : base()
        {
            this.MinWidth = 480;
            this.MinHeight = 400;
            this.Loaded += new RoutedEventHandler(Desktop_Loaded);
        }
        void Desktop_Loaded(object sender, RoutedEventArgs e)
        {
            if (isLoaded) return;
            for (int i = 0;
            i < this.Children.Count;
            i++)
            {
                CustomPanel panel = this.Children[i] as CustomPanel;
                if (panel == null) continue;
                if (panel.Name == null || panel.Name.Trim() == "") panel.Name = "panel" + i.ToString();
                panel.Click += BodyPanel_Click;
                panel.Margin = new Thickness(5, 3, 3, 3);
                Panels.Add(panel);
            }
            ctlNum = Panels.Count;
            if (Rows == 0) Rows = 1;
            rowCtlNum = (ctlNum / Rows) + (ctlNum % Rows > 0 ? 1 : 0);
            this.SizeChanged += new SizeChangedEventHandler(Desktop_SizeChanged);
            Desktop_SizeChanged(sender, null);
            isLoaded = true;
        }
        private void Desktop_SizeChanged(object sender, SizeChangedEventArgs e)
        {
            Double LWidth = 0;
            //小对象的宽度 Double MWidth = 0;
            //大对象的宽度 Double MHeight = 0;
            //大对象的高度 Double LHeight = 0;
            //小对象的高度 CalcPanelWidthAndHeight(out LWidth, out LHeight, out MWidth, out MHeight);
            //判断执行动画 if (string.IsNullOrEmpty(clickName) == true)//初始化动画,也就是第一次点击
            {
                this.Children.Clear();
                SetNormalState(MHeight, null);
            }
            else
            {
                Initialization(MWidth, MHeight, LWidth, LHeight);
            }
        }
        private void SetNormalState(double height, Storyboard sb)
        {
            Double MiddleWidth = this.ActualWidth / rowCtlNum - 5;
            //对象宽度 Double MiddleHeight = height / Rows - rowCtlNum - 5;
            //对象高度 int curRow = 0;
            for (int i = 0;
            i < ctlNum;
            i++)
            {
                if (i >= rowCtlNum) curRow = i / rowCtlNum;
                CustomPanel temp = Panels[i];
                double left = 0;
                double top = 0;
                if (i < rowCtlNum)//控制行Top
                {
                    top = 2;
                    //第一行顶点 left = MiddleWidth * i + i * 5;
                    //第一行的左边距
                }
                else
                {
                    top = this.ActualHeight / Rows * curRow;
                    //第二行顶点 left = MiddleWidth * (i - rowCtlNum * curRow) + (i - rowCtlNum * curRow) * 5;
                    //第二行的左边距
                }
                if (sb == null)
                {
                    temp.Width = MiddleWidth;
                    temp.Height = MiddleHeight;
                    temp.SetValue(Canvas.LeftProperty, left);
                    //与Margin有所不同 temp.SetValue(Canvas.TopProperty, top);
                    this.Children.Add(temp);
                }
                else ReducePanel(sb, temp, MiddleWidth, MiddleHeight, top, left);
            }
        }
        private void CalcPanelWidthAndHeight(out double lWidth, out double lHeight, out double mWidth, out double mHeight)
        {
            lWidth = 200;
            //小对象的宽度 mWidth = this.ActualWidth - lWidth - 5;
            //大对象的宽度 mHeight = this.ActualHeight - 5;
            //大对象的高度 lHeight = (mHeight - (ctlNum - 1) * 6) / (ctlNum - 1);
            //小对象的高度
        }
        private void BodyPanel_Click(object sender, RoutedEventArgs e)
        {
            CustomPanel panel = sender as CustomPanel;
            //Canvas ca = panel.Parent as Canvas;
            Double LWidth = 0;
            //小对象的宽度 Double MWidth = 0;
            //大对象的宽度 Double MHeight = 0;
            //大对象的高度 Double LHeight = 0;
            //小对象的高度 CalcPanelWidthAndHeight(out LWidth, out LHeight, out MWidth, out MHeight);
            //判断执行动画 if (string.IsNullOrEmpty(clickName) == true)//初始化动画,也就是第一次点击
            {
                clickName = panel.Name;
                //保存为上一个点击按钮 Initialization(MWidth, MHeight, LWidth, LHeight);
            }
            else
            {
                Storyboard sb = new Storyboard();
                if (panel.Name == clickName)//还原界面
                {
                    //当点击上一个点击的按钮时，还原初始界面 SetNormalState(MHeight, sb);
                    clickName = string.Empty;
                }
                else//位置交换
                {
                    CustomPanel ctl = this.FindName(clickName) as CustomPanel;
                    MaxPanel(sb, panel, MWidth - 5, MHeight - 10);
                    ctl.Button.IsMax = false;
                    ReducePanel(sb, ctl, LWidth, LHeight, Canvas.GetTop(panel), MWidth);
                    clickName = panel.Name;
                }
                sb.Begin();
            }
        }
        /// <summary>
        /// 获取每个对象顶点的位置数组
        /// </summary>
        /// <param name="ca"></param>
        /// <returns></returns>
        public List<double> topList(Canvas ca)
        {
            List<double> ListTmp = new List<double>();
            //Top位置坐标 //初始化Tops坐标 //Tops.Add((ctlNum - 1));
            Double MHeight = this.ActualHeight - 5;
            //大对象的高度 Double LTop = (MHeight - (ctlNum - 1) * 6) / (ctlNum - 1);
            //小对象的高度 for (int i = 0;
            i < ctlNum - 1;
            i++)
            {
                //95：初始化后控件高 3：间距 ListTmp.Add(i * LTop + i * 5 + 5);
            }
            return ListTmp;
        }
        /// <summary>
        /// 所有对象归位
        /// </summary>
        /// <param name="MaxWidth">大对象的宽</param>
        /// <param name="MaxHeight">大对象的高</param>
        /// <param name="LWidth">小对象的宽</param>
        /// <param name="LHeight">小对象的高</param>
        private void Initialization(double MaxWidth, double MaxHeight, Double LWidth, Double LHeight)
        {
            Tops = topList(this);
            Storyboard sb = new Storyboard();
            int iTop = 0;
            for (int i = 0;
            i < ctlNum;
            i++)
            {
                CustomPanel ctl = Panels[i];
                if (ctl.Name == clickName)//判断是否是单击对象
                {
                    MaxPanel(sb, ctl, MaxWidth - 5, MaxHeight - 10);
                    //第一次点击时
                }
                else
                {
                    ctl.Button.IsMax = false;
                    ReducePanel(sb, ctl, LWidth, LHeight, Tops[iTop], MaxWidth);
                    //其它的缩小归位 iTop++;
                }
            }
            sb.Begin();
        }
        /// <summary>
        /// 放大Panel对象
        /// </summary>
        /// <param name="sb"></param>
        /// <param name="panel"></param>
        private void MaxPanel(Storyboard sb, CustomPanel panel, double MaxWidth, double MaxHeight)
        {
            sb.Children.Add(CreateDoubleAnimation(panel, "(FrameworkElement.Width)", panel.Width, MaxWidth));
            sb.Children.Add(CreateDoubleAnimation(panel, "(FrameworkElement.Height)", panel.Height, MaxHeight));
            sb.Children.Add(CreateDoubleAnimation(panel, "(Canvas.Top)", Canvas.GetTop(panel), 5));
            sb.Children.Add(CreateDoubleAnimation(panel, "(Canvas.Left)", Canvas.GetLeft(panel), 0));
        }
        /// <summary>
        /// 缩小Panel对象,也就是小窗口的大小
        /// </summary>
        /// <param name="sb">动画板</param>
        /// <param name="panel">动画对象</param>
        /// <param name="width">宽度（缩小目标）</param>
        /// <param name="height">高度（缩小目标）</param>
        /// <param name="Top">对象最终顶边</param>
        /// <param name="Left">对象最终左边</param>
        private void ReducePanel(Storyboard sb, CustomPanel panel, double width, double height, double Top, double Left)
        {
            sb.Children.Add(CreateDoubleAnimation(panel, "(FrameworkElement.Width)", panel.Width, width));
            sb.Children.Add(CreateDoubleAnimation(panel, "(FrameworkElement.Height)", panel.Height, height));
            sb.Children.Add(CreateDoubleAnimation(panel, "(Canvas.Top)", Canvas.GetTop(panel), Top));
            sb.Children.Add(CreateDoubleAnimation(panel, "(Canvas.Left)", Canvas.GetLeft(panel), Left));
        }
        /// <summary>
        /// 创建一个DoubleAnimation动画对象
        /// </summary>
        /// <param name="element">动画对象</param>
        /// <param name="property">动画对象属性</param>
        /// <param name="from">起始值</param>
        /// <param name="to">结束值</param>
        /// <returns></returns>
        public static DoubleAnimation CreateDoubleAnimation(DependencyObject element, string property, double from, double to)
        {
            DoubleAnimation da = new DoubleAnimation();
            TimeSpan tsBeginTime = new TimeSpan(0, 0, 0, 0, 0);
            //开始时间 TimeSpan tsDuration = TimeSpan.FromMilliseconds(1000);
            //播放时间的长度 da.BeginTime = tsBeginTime;
            da.Duration = new Duration(tsDuration);
            //播放长度 da.To = to;
            da.From = from;
            da.EasingFunction = new PowerEase()
            {
                EasingMode = EasingMode.EaseOut, Power = 3
            }
            ;
            Storyboard.SetTarget(da, element);
            Storyboard.SetTargetProperty(da, new PropertyPath(property));
            return da;
        }
    }
}