MTP2.0_CSharp/Muchinfo.Common/Fx4.0/Muchinfo.ChartClient/MuchInfo.Chart/MuchInfo.Chart.WPF/Controls/QuickTimeSpan/QuickTimeSpan.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace MuchInfo.Chart.WPF.Controls.QuickTimeSpan
{
    public partial class QuickTimeSpan : UserControl
    {
        private Chart _chart;
        public QuickTimeSpan(Chart chart)
        {
            InitializeComponent();
            this._chart = chart;
        }

        private void qtsListBox_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            //鼠标上键
            if (Keyboard.IsKeyDown(Key.Up))
            {
                _chart._crossHairGrid_IsDoubleClick = false;
                _chart.HiddenCrossHairGrid();
                if (_chart.RecordCount + _chart.LeftRightKeyToAcceleration < _chart.MaxRecordCount)
                {
                    _chart.RecordCount += _chart.LeftRightKeyToAcceleration;
                }
                else
                {
                    _chart.RecordCount = _chart.MaxRecordCount;
                }
            }
            //鼠标下键
            if (Keyboard.IsKeyDown(Key.Down))
            {
                _chart._crossHairGrid_IsDoubleClick = false;
                _chart.HiddenCrossHairGrid();
                if (_chart.RecordCount - _chart.LeftRightKeyToAcceleration > _chart.MinRecordCount)
                {
                    _chart.RecordCount -= _chart.LeftRightKeyToAcceleration;
                }
                else
                {
                    _chart.RecordCount = _chart.MinRecordCount;
                }
            }
            //鼠标左键
            if (Keyboard.IsKeyDown(Key.Left))
            {
                Mouse.OverrideCursor = Cursors.None;
                _chart.DrawingCross(false);
            }
            //鼠标右键
            if (Keyboard.IsKeyDown(Key.Right))
            {
                Mouse.OverrideCursor = Cursors.None;
                _chart.DrawingCross(true);
            }
            e.Handled = true;
        }
    }
}