78 lines
2.9 KiB
C#
78 lines
2.9 KiB
C#
#region license
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// This file is part of Vocaluxe.
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//
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// Vocaluxe 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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// Vocaluxe 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 Vocaluxe. If not, see <http://www.gnu.org/licenses/>.
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#endregion
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using System;
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namespace VocaluxeLib.Xml
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{
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/// <summary>
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/// Base class that provides basic methods for reading xml, while the actual XML implementation is still abstract to allow different implementations
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/// </summary>
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public abstract class CXmlReaderBase
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{
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public abstract bool GetValue(string xPath, out string value, string defaultValue = "");
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public abstract bool GetAttribute(string xPath, string attribute, out string value);
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public bool TryGetBoolValue(string xPath, out bool value, bool defaultValue = false)
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{
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value = defaultValue;
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string val;
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return GetValue(xPath, out val) && bool.TryParse(val, out value);
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}
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public bool TryGetIntValue(string xPath, ref int value, int? defaultValue = null)
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{
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string val;
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bool ok = GetValue(xPath, out val) && int.TryParse(val, out value);
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if (!ok && defaultValue.HasValue)
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value = defaultValue.Value;
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return ok;
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}
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public bool TryGetFloatValue(string xPath, ref float value)
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{
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string val;
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return GetValue(xPath, out val, value.ToString()) && CHelper.TryParse(val, out value);
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}
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public bool TryGetEnumValue<T>(string xPath, ref T value) where T : struct
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{
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string val;
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return GetValue(xPath, out val, Enum.GetName(typeof(T), value)) && CHelper.TryParse(val, out value, true);
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}
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public bool TryGetIntValueRange(string xPath, ref int value, int min = 0, int max = 100)
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{
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return TryGetIntValue(xPath, ref value) && value.IsInRange(min, max);
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}
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/// <summary>
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/// Gets a normalized (0<=x<=1) float value
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/// </summary>
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/// <param name="xPath"></param>
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/// <param name="value"></param>
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/// <param name="defaultValue"></param>
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/// <returns>True if exists and is normalized</returns>
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public bool TryGetNormalizedFloatValue(string xPath, ref float value, float defaultValue = 0)
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{
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bool ok = TryGetFloatValue(xPath, ref value) && value.IsInRange(0f, 1f);
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if (!ok)
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value = defaultValue;
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return ok;
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}
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}
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} |