using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Controls;
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using System.Windows;
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using System.Windows.Media;
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namespace XHandler.Controls
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{
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public class GridOptions
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{
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//暂时不处理实时显示的事情
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#region 显示边框信息
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public static readonly DependencyProperty ShowBorderProperty =
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DependencyProperty.RegisterAttached("ShowBorder", typeof(bool), typeof(GridOptions)
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, new PropertyMetadata(OnShowBorderChanged));
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public static bool GetShowBorder(DependencyObject obj)
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{
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return (bool)obj.GetValue(ShowBorderProperty);
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}
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public static void SetShowBorder(DependencyObject obj, bool value)
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{
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obj.SetValue(ShowBorderProperty, value);
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}
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public static void OnShowBorderChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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var grid = d as Grid;
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if ((bool)e.OldValue)
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grid.Loaded -= (s, arg) => { };
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else
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{
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grid.Loaded += new RoutedEventHandler(GridLoaded);
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}
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}
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#endregion
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#region 线宽信息
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public static readonly DependencyProperty LineThicknessProperty =
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DependencyProperty.RegisterAttached("LineThickness", typeof(double), typeof(GridOptions),
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new PropertyMetadata(1d, OnGridLineThicknessChanged));
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public static double GetLineThickness(DependencyObject obj)
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{
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return (double)obj.GetValue(LineThicknessProperty);
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}
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public static void SetLineThickness(DependencyObject obj, double value)
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{
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obj.SetValue(LineThicknessProperty, value);
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}
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public static void OnGridLineThicknessChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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}
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#endregion
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public static readonly DependencyProperty LineBrushProperty =
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DependencyProperty.RegisterAttached("LineBrush", typeof(Brush), typeof(GridOptions),
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new PropertyMetadata(Brushes.Gray, OnGridLineBrushChanged));
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#region 线画刷问题
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public static Brush GetLineBrush(DependencyObject obj)
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{
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var brush = (Brush)obj.GetValue(LineBrushProperty);
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return brush ?? Brushes.LightGray;
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}
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public static void SetLineBrush(DependencyObject obj, Brush value)
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{
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obj.SetValue(LineBrushProperty, value);
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}
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public static void OnGridLineBrushChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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}
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#endregion
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private static void GridLoaded(object sender, RoutedEventArgs e)
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{
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#region 思路
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/*
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* 1、覆盖所有单元格都要包围上边框。
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* 2、边框线不能存在重复。每个单元格绘制【右下】部分，主体绘制右上部分
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*/
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#endregion
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var grid = sender as Grid;
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var rowCount = Math.Max(1, grid.RowDefinitions.Count);
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var columnCount = Math.Max(1, grid.ColumnDefinitions.Count);
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#region 初始化标准数组
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int[,] flagArray = new int[rowCount, columnCount];
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#endregion
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var controls = grid.Children;
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var count = controls.Count;
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var settingThickness = 0;//GetLineThickness(grid);
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var borderBrush = GetLineBrush(grid);
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for (int i = 0; i < count; i++)
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{
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var item = controls[i] as FrameworkElement;
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var row = Grid.GetRow((item));
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var column = Grid.GetColumn(item);
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var rowSpan = Grid.GetRowSpan(item);
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var columnSpan = Grid.GetColumnSpan(item);
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for (int rowTemp = 0; rowTemp < rowSpan; rowTemp++)
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{
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for (int colTemp = 0; colTemp < columnSpan; colTemp++)
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{
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flagArray[rowTemp + row, colTemp + column] = 1;
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}
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}
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var border = CreateBorder(row, column, rowSpan, columnSpan, settingThickness);
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border.BorderBrush = borderBrush;
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grid.Children.RemoveAt(i);
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border.Child = item;
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grid.Children.Insert(i, border);
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}
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#region 整理为填充单元格
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for (int i = 0; i < rowCount; i++)
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{
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for (int k = 0; k < columnCount; k++)
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{
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if (flagArray[i, k] == 0)
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{
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var border = CreateBorder(i, k, 1, 1, settingThickness);
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border.BorderBrush = borderBrush;
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grid.Children.Add(border);
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}
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}
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}
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#endregion
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}
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private static Border CreateBorder(int row, int column, int rowSpan, int columnSpan, double thickness)
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{
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var useThickness = new Thickness(0, 0, thickness, thickness);
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if (row == 0)
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useThickness.Top = thickness;
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if (column == 0)
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useThickness.Left = thickness;
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var border = new Border()
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{
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BorderThickness = useThickness,
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};
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Grid.SetRow(border, row);
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Grid.SetColumn(border, column);
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Grid.SetRowSpan(border, rowSpan);
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Grid.SetColumnSpan(border, columnSpan);
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return border;
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}
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}
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}
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