cyf
296 lines
12 KiB
C#
296 lines
12 KiB
C#
using DevExpress.Utils;
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using DevExpress.XtraGrid.Views.Grid;
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using DevExpress.XtraGrid.Views.Grid.ViewInfo;
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using DevExpress.XtraTreeList;
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using DevExpress.XtraTreeList.Nodes;
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using Lskj.Data;
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using Lskj.Util;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace Lskj.Control.Model
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{
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public class GridDragTreeGrid
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{
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/// <summary>
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/// 拖动位置
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/// </summary>
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private GridHitInfo _hitInfo;
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/// <summary>
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/// 拖拽时节点
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/// </summary>
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private TreeListNode _beforeListNode;
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/// <summary>
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/// 拖动数据源
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/// </summary>
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private GridView _gridView;
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/// <summary>
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/// 拖动目标源
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/// </summary>
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private TreeList _treeListGrid;
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/// <summary>
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/// 是否正在拖拽
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/// </summary>
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private bool _draging = false;
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/// <summary>
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/// 拖拽条件与目标树选中节点数据进行替换比较
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/// </summary>
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public string isDragCond;
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/// <summary>
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/// 是否允许拖拽
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/// </summary>
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public bool isAllowDrag = true;
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/// <summary>
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/// 拖拽是否忽视节点（不忽视必须要推拽到节点上）
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/// </summary>
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public bool NeglectingNodes = false;
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/// <summary>
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/// 是否正在拖拽
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/// </summary>
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public bool Draging { get { return _draging; } set { _draging = value; } }
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public bool CanDragParentNode = false;
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public bool isDropColorVisble = false;
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/// <summary>
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/// 表格数据拖动完成
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/// </summary>
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public event GridDragTreeGridCompleteEventHandler OnDragComplete;
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public GridDragTreeGrid(GridView gridView, TreeList treeListGrid)
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{
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this._gridView = gridView;
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this._treeListGrid = treeListGrid;
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if (this._gridView == null || this._treeListGrid == null)
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return;
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this._gridView.MouseDown += new MouseEventHandler(gridView_MouseDown);
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this._gridView.MouseMove += new MouseEventHandler(gridView_MouseMove);
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this._gridView.MouseUp += new MouseEventHandler(gridView_MouseUp);
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//this._treeListGrid.HideSelection = false;
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this._treeListGrid.AllowDrop = true;
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this._treeListGrid.DragOver += new DragEventHandler(treeView_DragOver);
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this._treeListGrid.DragDrop += new DragEventHandler(treeView_DragDrop);
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}
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/// <summary>
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/// <para>说明：获取表格选中行数据</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-13 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="rowHandles">The row handles.</param>
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/// <returns>DataRow[].</returns>
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private DataRow[] GetGridSelectRows(int[] rowHandles)
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{
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List<DataRow> rows = new List<DataRow>();
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foreach (int handle in rowHandles)
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{
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DataRow row = this._gridView.GetDataRow(handle);
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rows.Add(row);
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}
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return rows.ToArray();
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}
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/// <summary>
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/// <para>说明：GridView 鼠标按下</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-13 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
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protected void gridView_MouseDown(object sender, MouseEventArgs e)
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{
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this._hitInfo = null;
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this._beforeListNode = null;
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if (System.Windows.Forms.Control.ModifierKeys != Keys.None) return;
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GridView gridView = sender as GridView;
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GridHitInfo hitInfo = gridView.CalcHitInfo(new Point(e.X, e.Y));
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if (e.Button == MouseButtons.Left && hitInfo.RowHandle >= 0)
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{
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this._draging = true;
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this._hitInfo = hitInfo;
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this._beforeListNode = this._treeListGrid.FocusedNode;
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}
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}
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/// <summary>
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/// <para>说明：鼠标移动</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-13 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
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protected void gridView_MouseMove(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left && this._draging)
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{
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GridView gridView = sender as GridView;
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if (e.Button == MouseButtons.Left && this._hitInfo != null)
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{
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Size dragSize = SystemInformation.DragSize;
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Rectangle dragRect = new Rectangle(new Point(this._hitInfo.HitPoint.X - dragSize.Width / 2, this._hitInfo.HitPoint.Y - dragSize.Height / 2), dragSize);
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if (!dragRect.Contains(new Point(e.X, e.Y)))
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{
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object row = gridView.GetRow(this._hitInfo.RowHandle);
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gridView.GridControl.DoDragDrop(row, DragDropEffects.Move);
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this._hitInfo = null;
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DXMouseEventArgs.GetMouseArgs(e).Handled = true;
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}
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}
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}
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else
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{
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this._draging = false;
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}
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}
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/// <summary>
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/// <para>说明：源表格鼠标放开</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-13 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="System.Windows.Forms.MouseEventArgs"/> instance containing the event data.</param>
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protected void gridView_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
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{
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this._draging = false;
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}
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/// <summary>
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/// <para>说明：</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-13 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="DragEventArgs"/> instance containing the event data.</param>
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protected void treeView_DragOver(object sender, DragEventArgs e)
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{
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if (e.KeyState == (int)Keys.LButton && this._draging)
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{
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TreeList treeListGrid = sender as TreeList;
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treeListGrid.Select();
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Point gcPoint = treeListGrid.PointToScreen((sender as TreeList).Location);
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Point pt = new Point(e.X - gcPoint.X, e.Y - gcPoint.Y);
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TreeListHitInfo _hitInfo = treeListGrid.CalcHitInfo(pt);
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if (NeglectingNodes)
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{
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e.Effect = DragDropEffects.Move;
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if (_hitInfo != null &&_hitInfo.Node!=null)
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{
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_hitInfo.Node.Expanded = true;
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}
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}
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else
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{
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if (_hitInfo == null || treeListGrid.GetNodeIndex(_hitInfo.Node) < 0)
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{
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e.Effect = DragDropEffects.None;
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return;
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}
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DataRowView dataRowView = this._treeListGrid.GetDataRecordByNode(_hitInfo.Node) as DataRowView;
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DataRow Row = dataRowView != null ? dataRowView.Row : null;
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bool isLastNode = _hitInfo.Node.Nodes.Count == 0;
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if (!isLastNode)
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{
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_hitInfo.Node.Expanded = true; ;
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}
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DataRow[] rowItems = this.GetGridSelectRows(this._gridView.GetSelectedRows());
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if (isLastNode || CanDragParentNode)
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{
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if (ReplaceHelper.ReplaceRowParamCond(Row, this.isDragCond) && isAllowDrag)
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{
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e.Effect = DragDropEffects.Move;
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treeListGrid.FocusedNode = _hitInfo.Node;
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}
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else
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{
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e.Effect = DragDropEffects.None;
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}
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}
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else
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{
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e.Effect = DragDropEffects.None;
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}
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}
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}
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}
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/// <summary>
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/// <para>说明：</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-13 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="DragEventArgs"/> instance containing the event data.</param>
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protected void treeView_DragDrop(object sender, DragEventArgs e)
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{
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if (this.OnDragComplete != null && this._draging)
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{
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this._draging = false;
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TreeList treeListGrid = sender as TreeList;
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Point gcPoint = treeListGrid.PointToScreen((sender as TreeList).Location);
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Point pt = new Point(e.X - gcPoint.X, e.Y - gcPoint.Y);
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TreeListHitInfo _hitInfo = treeListGrid.CalcHitInfo(pt);
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TreeListNode treeNode = _hitInfo.Node;
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if (!NeglectingNodes)
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{
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if (treeNode == null) return;
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if (treeNode.Nodes.Count() > 0 && !CanDragParentNode)
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{
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MessageUtil.Show(string.Format(ResourceKeys.UnLastTreeNode, treeNode.GetDisplayText(treeListGrid.KeyFieldName)));
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return;
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}
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}
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if (!e.Data.GetDataPresent(typeof(TreeNode)))
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{
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if (OnDragComplete != null)
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{
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GridDragTreeGridArgs args = new GridDragTreeGridArgs();
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args.GridViewObj = this._gridView;
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args.TreeListObj = this._treeListGrid;
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args.GridViewSelectRows = this.GetGridSelectRows(this._gridView.GetSelectedRows());
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args.SelectTreeNode = treeNode;
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args.BeforeTreeNode = this._beforeListNode;
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OnDragComplete(sender, args);
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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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