VisualPascalABCNET/FormsDesignerBinding/Dependecies/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/UniformGridWithSpacing.cs - master - n-dimens/pascalabcnet

VisualPascalABCNET/FormsDesignerBinding/Dependecies/src/Main/ICSharpCode.SharpDevelop.Widgets/Project/UniformGridWithSpacing.cs

66 строк3 KB

Бондарев Иван

initial commit

14 май 2015, 22:35

14 май 2015, 22:35e6e67c1

// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)

using System;
using System.Windows;
using System.Windows.Controls.Primitives;

namespace ICSharpCode.SharpDevelop.Widgets
{
	/// <summary>
	/// UniformGrid that has spacing between columns/rows.
	/// </summary>
	public class UniformGridWithSpacing : UniformGrid
	{
		public static readonly DependencyProperty SpaceBetweenColumnsProperty =
			DependencyProperty.Register("SpaceBetweenColumns", typeof(double), typeof(UniformGridWithSpacing),
			                            new FrameworkPropertyMetadata(7.0, FrameworkPropertyMetadataOptions.AffectsMeasure));
		
		public double SpaceBetweenColumns {
			get { return (double)GetValue(SpaceBetweenColumnsProperty); }
			set { SetValue(SpaceBetweenColumnsProperty, value); }
		}
		
		public static readonly DependencyProperty SpaceBetweenRowsProperty =
			DependencyProperty.Register("SpaceBetweenRows", typeof(double), typeof(UniformGridWithSpacing),
			                            new FrameworkPropertyMetadata(5.0, FrameworkPropertyMetadataOptions.AffectsMeasure));
		
		public double SpaceBetweenRows {
			get { return (double)GetValue(SpaceBetweenRowsProperty); }
			set { SetValue(SpaceBetweenRowsProperty, value); }
		}
		
		protected override Size MeasureOverride(Size constraint)
		{
			Size s = base.MeasureOverride(constraint);
			return new Size(s.Width + Math.Max(0, this.Columns - 1) * this.SpaceBetweenColumns,
			                s.Height + Math.Max(0, this.Rows - 1) * this.SpaceBetweenRows);
		}
		
		protected override Size ArrangeOverride(Size arrangeSize)
		{
			double spaceBetweenColumns = this.SpaceBetweenColumns;
			double spaceBetweenRows = this.SpaceBetweenRows;
			int rows = Math.Max(1, this.Rows);
			int columns = Math.Max(1, this.Columns);
			Rect rect = new Rect(0, 0,
			                     (arrangeSize.Width - spaceBetweenColumns * (columns - 1)) / columns,
			                     (arrangeSize.Height - spaceBetweenRows * (rows - 1)) / rows);
			int currentColumn = this.FirstColumn;
			rect.X += currentColumn * (rect.Width + spaceBetweenColumns);
			foreach (UIElement element in this.InternalChildren) {
				element.Arrange(rect);
				if (element.Visibility != Visibility.Collapsed) {
					if (++currentColumn >= columns) {
						currentColumn = 0;
						rect.X = 0;
						rect.Y += rect.Height + spaceBetweenRows;
					} else {
						rect.X += rect.Width + spaceBetweenColumns;
					}
				}
			}
			return arrangeSize;
		}
	}
}