Discuz.Web/silverlight/album/UserControl/SortNavigator.cs

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using System;
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.Diagnostics;

namespace DiscuzAlbum.UserControl
{
    public class SortNavigator
    {
        #region Properties
        private Canvas _assemblyCanvas;
        private Canvas _thumHolder;
        private Canvas _holderClip;
        private Canvas _btnLeft;
        private Canvas _btnRight;
        private ThumSlice _currentThum;

        private Image _topNaviLeft;
        private Image _topNaviMiddle;
        private Image _topNaviRight;
        private Image _btnLeftImage;
        private Image _btnRightImage;
        private Image _dividorA;
        private Image _dividorB;

        private readonly double _slowSpeed = 4;
        private readonly double _fastSpeed = 20;

        private TextBlock _indexText1;
        private TextBlock _indexText2;
        private TextBlock _indexDivider;

        private double _speed;
        private Storyboard _moveTimer;

        private Downloader _fontDownloader;

        #endregion

        public SortNavigator(Canvas pAssembly)
        {
            _assemblyCanvas = pAssembly;
            _speed = 0;         // no animation by default.
            _moveTimer = _assemblyCanvas.FindName("ScrollTimer") as Storyboard;

            _thumHolder = _assemblyCanvas.FindName("ThumHolder") as Canvas;
            _holderClip = _assemblyCanvas.FindName("HolderClip") as Canvas;
            _btnLeft = _assemblyCanvas.FindName("BtnLeft") as Canvas;
            _btnRight = _assemblyCanvas.FindName("BtnRight") as Canvas;

            _topNaviLeft = _assemblyCanvas.FindName("TopNaviLeft") as Image;
            _topNaviMiddle = _assemblyCanvas.FindName("TopNaviMiddle") as Image;
            _topNaviRight = _assemblyCanvas.FindName("TopNaviRight") as Image;