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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Drawing;
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namespace Aga.Controls.Tree
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{
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internal class FixedRowHeightLayout : IRowLayout
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{
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private TreeViewAdv _treeView;
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public FixedRowHeightLayout(TreeViewAdv treeView, int rowHeight)
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{
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_treeView = treeView;
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PreferredRowHeight = rowHeight;
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}
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private int _rowHeight;
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public int PreferredRowHeight
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{
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get { return _rowHeight; }
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set { _rowHeight = value; }
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}
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public Rectangle GetRowBounds(int rowNo)
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{
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return new Rectangle(0, rowNo * _rowHeight, 0, _rowHeight);
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}
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public int PageRowCount
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{
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get
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{
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return Math.Max((_treeView.DisplayRectangle.Height - _treeView.ColumnHeaderHeight) / _rowHeight, 0);
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}
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}
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public int CurrentPageSize
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{
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get
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{
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return PageRowCount;
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}
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}
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public int GetRowAt(Point point)
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{
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point = new Point(point.X, point.Y + (_treeView.FirstVisibleRow * _rowHeight) - _treeView.ColumnHeaderHeight);
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return point.Y / _rowHeight;
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}
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public int GetFirstRow(int lastPageRow)
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{
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return Math.Max(0, lastPageRow - PageRowCount + 1);
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}
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public void ClearCache()
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{
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}
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}
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}
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