/*
         * 初始化一个图片控件
         */
        private Canvas initOneVideo(StorageVideo storageVideo)
        {
            VideoListTag tag = new VideoListTag();

            tag.isSelected   = false;
            tag.storageVideo = storageVideo;
            Canvas videoCanvas = new Canvas();

            videoCanvas.Name   = "videoCanvas";
            videoCanvas.Width  = 100;
            videoCanvas.Height = 100;
            videoCanvas.Margin = new Thickness(10);
            videoCanvas.Tag    = tag;

            //1.按钮
            StorageImage storageImage = storageImageBll.get(storageVideo.storageImageId);
            string       imgFullPath  = FileUtil.notExistsShowDefault(storageImage?.url, Params.ImageNotExists);

            imgFullPath = AppDomain.CurrentDomain.BaseDirectory + imgFullPath;

            Image videoImage = new Image();

            videoImage.Name    = "videoImage1";
            videoImage.Width   = 100;
            videoImage.Height  = 75;
            videoImage.Source  = FileUtil.readImage2(imgFullPath, 200);
            videoImage.Stretch = Stretch.UniformToFill;

            //2.按钮行
            Canvas bg = new Canvas();

            bg.Name       = "bg";
            bg.Background = Brushes.Black;
            bg.Width      = 100;
            bg.Height     = 24;
            bg.Opacity    = 0.6;
            bg.SetValue(Canvas.BottomProperty, 25.0);
            bg.SetValue(Canvas.LeftProperty, 0.0);

            //时长
            string mmss   = VideoUtil.duration2mmss(storageVideo.duration);
            Label  lLabel = new Label();

            lLabel.Width      = 50;
            lLabel.Height     = 24;
            lLabel.Content    = mmss;
            lLabel.Foreground = Brushes.White;
            lLabel.SetValue(Canvas.LeftProperty, 0.0);
            lLabel.SetValue(Canvas.TopProperty, 0.0);
            bg.Children.Add(lLabel);

            //删除按钮
            Button rbtn = new Button();

            rbtn.Width           = 16;
            rbtn.Height          = 16;
            rbtn.BorderThickness = new Thickness(0);
            rbtn.Background      = new ImageBrush
            {
                ImageSource = FileUtil.readImage(AppDomain.CurrentDomain.BaseDirectory + "/myfile/sysimg/ico-image-remove.png")
                ,
                Stretch = Stretch.UniformToFill
            };
            rbtn.SetValue(Canvas.RightProperty, -8.0);
            rbtn.SetValue(Canvas.TopProperty, -8.0);
            // bg.Children.Add(rbtn);
            // rbtn.Click += rbtnClick;


            //标题
            Label titleLabel = new Label();

            titleLabel.Width   = 100;
            titleLabel.Height  = 25;
            titleLabel.Content = storageVideo.origFilename;
            titleLabel.SetValue(Canvas.LeftProperty, 0.0);
            titleLabel.SetValue(Canvas.BottomProperty, 0.0);
            titleLabel.ToolTip = storageVideo.origFilename;

            //勾选
            Button selectButton = new Button();

            selectButton.Name            = "selectButton";
            selectButton.Tag             = storageVideo.id;
            selectButton.Width           = 24;
            selectButton.Height          = 24;
            selectButton.BorderThickness = new Thickness(0);
            selectButton.SetValue(Canvas.LeftProperty, 7.0);
            selectButton.SetValue(Canvas.TopProperty, 7.0);
            selectButton.Background = new ImageBrush
            {
                ImageSource = new BitmapImage(new Uri(@"Resources/ico_media_select.png", UriKind.Relative)),
                Stretch     = Stretch.UniformToFill
            };
            selectButton.Visibility = Visibility.Hidden;


            videoCanvas.MouseEnter          += videoCanvasMouseEnter;
            videoCanvas.MouseLeave          += videoCanvasMouseLeave;
            videoCanvas.MouseLeftButtonDown += selectButtonClick;
            selectButton.Click += selectButtonClick;



            videoCanvas.Children.Add(videoImage);
            videoCanvas.Children.Add(bg);
            videoCanvas.Children.Add(titleLabel);
            videoCanvas.Children.Add(selectButton);
            // videoCanvas.Children.Add(rbtn);

            return(videoCanvas);
        }
        /*
         * 添加已选择的视频
         */
        private Canvas initSelectedVideo(StorageVideo video)
        {
            VideoListTag tag = new VideoListTag();

            tag.isSelected   = false;
            tag.storageVideo = video;
            Canvas selectedVideoCanvas = new Canvas();

            selectedVideoCanvas.Name   = "selectedVideoCanvas";
            selectedVideoCanvas.Width  = 100;
            selectedVideoCanvas.Height = 100;
            selectedVideoCanvas.Margin = new Thickness(10);
            selectedVideoCanvas.Tag    = tag;

            //1.按钮
            StorageImage storageImage = storageImageBll.get(video.storageImageId);
            string       imgFullPath  = FileUtil.notExistsShowDefault(storageImage?.url, Params.ImageNotExists);

            imgFullPath = AppDomain.CurrentDomain.BaseDirectory + imgFullPath;
            Image videoImage = new Image();

            videoImage.Name    = "videoImage1";
            videoImage.Width   = 100;
            videoImage.Height  = 75;
            videoImage.Source  = FileUtil.readImage2(imgFullPath, 200);
            videoImage.Stretch = Stretch.UniformToFill;

            //2.按钮行
            Canvas bg = new Canvas();

            bg.Name       = "bg";
            bg.Background = Brushes.Black;
            bg.Width      = 100;
            bg.Height     = 24;
            bg.Opacity    = 0.6;
            bg.SetValue(Canvas.BottomProperty, 25.0);
            bg.SetValue(Canvas.LeftProperty, 0.0);

            //时长
            string mmss   = VideoUtil.duration2mmss(video.duration);
            Label  lLabel = new Label();

            lLabel.Width      = 50;
            lLabel.Height     = 24;
            lLabel.Content    = mmss;
            lLabel.Foreground = Brushes.White;
            lLabel.SetValue(Canvas.LeftProperty, 0.0);
            lLabel.SetValue(Canvas.TopProperty, 0.0);
            bg.Children.Add(lLabel);

            //删除按钮
            Button rbtn = new Button();

            rbtn.Width           = 16;
            rbtn.Height          = 16;
            rbtn.BorderThickness = new Thickness(0);
            rbtn.Background      = new ImageBrush
            {
                ImageSource = FileUtil.readImage(AppDomain.CurrentDomain.BaseDirectory + App.localStorage.icoRemove)
                ,
                Stretch = Stretch.UniformToFill
            };
            rbtn.SetValue(Canvas.RightProperty, -8.0);
            rbtn.SetValue(Canvas.TopProperty, -8.0);
            rbtn.Click += rbtnRemoveSelectedVideoClick;


            //标题
            string videoFullPath = FileUtil.notExistsShowDefault(video?.url, Params.VideoNotExists);
            string fullFolder    = FileUtil.getDirectory(AppDomain.CurrentDomain.BaseDirectory + videoFullPath);

            Label titleLabel = new Label();

            titleLabel.Width   = 100;
            titleLabel.Height  = 25;
            titleLabel.Content = video.origFilename;
            titleLabel.Tag     = fullFolder;
            titleLabel.SetValue(Canvas.LeftProperty, 0.0);
            titleLabel.SetValue(Canvas.BottomProperty, 0.0);
            titleLabel.ToolTip = video.origFilename;
            titleLabel.PreviewMouseLeftButtonUp += titleLabel_PreviewMouseLeftButtonUp;

            selectedVideoCanvas.Children.Add(videoImage);
            selectedVideoCanvas.Children.Add(bg);
            selectedVideoCanvas.Children.Add(titleLabel);
            selectedVideoCanvas.Children.Add(rbtn);
            return(selectedVideoCanvas);
        }