88 lines
2.7 KiB
C#
88 lines
2.7 KiB
C#
//
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// Measurement.cs - provides a tuple and enumeration describing a measurement value
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//
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// Author:
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// Michael Becker <alcexhim@gmail.com>
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//
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// Copyright (c) 2011-2020 Mike Becker's Software
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System;
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namespace UniversalEditor.ObjectModels.Designer
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{
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/// <summary>
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/// Describes the unit of measure in a <see cref="Measurement" />.
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/// </summary>
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public enum MeasurementUnit
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{
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Percentage,
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Pixel,
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Unknown
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}
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/// <summary>
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/// Represents a measurement of a particular value in a specific unit of measure.
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/// </summary>
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/// <remarks>
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/// A similar structure or class has been developed for the UniversalEditor Web Plugin for CSS support; we may wish to merge the two into a single
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/// structure or class and place it in MBS.Framework.Drawing for easier re-use in other projects.
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/// </remarks>
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public struct Measurement
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{
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/// <summary>
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/// Gets the unit of measure for this <see cref="Measurement" />.
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/// </summary>
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/// <value>The unit of measure for this <see cref="Measurement" />.</value>
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public MeasurementUnit Unit { get; }
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/// <summary>
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/// Gets or sets the value of this <see cref="Measurement" />.
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/// </summary>
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/// <value>The value of this <see cref="Measurement" />.</value>
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public double Value { get; set; }
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private bool mvarIsNotEmpty;
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public bool IsEmpty { get { return !mvarIsNotEmpty; } }
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public Measurement(string value)
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{
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if (value.EndsWith("px"))
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{
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string v = value.Substring(0, value.Length - 2);
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Value = double.Parse(v);
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Unit = MeasurementUnit.Pixel;
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}
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else if (value.EndsWith("%"))
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{
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string v = value.Substring(0, value.Length - 1);
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Value = double.Parse(v);
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Unit = MeasurementUnit.Percentage;
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}
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throw new FormatException("The string could not be parsed as a valid Measurement.");
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}
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public Measurement(double value)
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{
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mvarIsNotEmpty = true;
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Value = value;
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Unit = MeasurementUnit.Pixel;
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}
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public Measurement(double value, MeasurementUnit unit)
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{
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mvarIsNotEmpty = true;
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Value = value;
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Unit = unit;
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}
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}
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}
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