235 lines
8.0 KiB
C#
235 lines
8.0 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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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Globalization;
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using System.Linq;
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using System.Text.RegularExpressions;
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namespace VocaluxeLib
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{
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public static class CExtensions
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{
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/// <summary>
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/// Makes sure val is between min and max
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/// Asserts that min<=max
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="val"></param>
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/// <param name="min"></param>
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/// <param name="max"></param>
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/// <returns>Clamped value</returns>
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public static T Clamp<T>(this T val, T min, T max) where T : IComparable<T>
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{
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Debug.Assert(min.CompareTo(max) <= 0);
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if (val.CompareTo(min) < 0)
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return min;
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if (val.CompareTo(max) > 0)
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return max;
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return val;
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}
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/// <summary>
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/// Makes sure val is between min and max but also handles the case where min>max
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="val"></param>
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/// <param name="min"></param>
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/// <param name="max"></param>
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/// <param name="preferMin"></param>
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/// <returns>Clamped value</returns>
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public static T Clamp<T>(this T val, T min, T max, bool preferMin) where T : IComparable<T>
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{
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if (min.CompareTo(max) > 0)
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{
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if (preferMin)
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max = min;
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else
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min = max;
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}
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return Clamp(val, min, max);
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}
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/// <summary>
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/// Checks if the value is in the specified range
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="val"></param>
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/// <param name="min"></param>
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/// <param name="max"></param>
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/// <returns></returns>
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public static bool IsInRange<T>(this T val, T min, T max) where T : IComparable<T>
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{
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Debug.Assert(min.CompareTo(max) <= 0);
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return min.CompareTo(val) <= 0 && max.CompareTo(val) >= 0;
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}
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/// <summary>
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/// Resizes the given list to the given size. Removes elements or adds default values
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="size"></param>
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/// <param name="defaultValue"></param>
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public static void Resize<T>(this List<T> list, int size, T defaultValue = default(T))
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{
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int curSize = list.Count;
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if (size < curSize)
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list.RemoveRange(size, curSize - size);
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else if (size > curSize)
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list.AddRange(Enumerable.Repeat(defaultValue, size - curSize));
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}
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/// <summary>
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/// Makes the list at least the given size adding the given default values.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="size"></param>
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/// <param name="defaultValue"></param>
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public static void EnsureSize<T>(this List<T> list, int size, T defaultValue)
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{
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int curSize = list.Count;
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if (size > curSize)
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list.AddRange(Enumerable.Repeat(defaultValue, size - curSize));
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}
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/// <summary>
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/// Makes the list at least the given size adding a new instance of T
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="list"></param>
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/// <param name="size"></param>
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public static void EnsureSize<T>(this List<T> list, int size) where T : new()
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{
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if (size > list.Count)
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list.Add(new T());
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}
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/// <summary>
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/// Gets all set bits starting from lowest (Bit 0)
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public static IEnumerable<int> GetSetBits(this int value)
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{
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var result = new List<int>();
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int curBit = 0;
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//Evaluate as bitset
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while (value > 0)
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{
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if ((value & 1) != 0)
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result.Add(curBit);
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value >>= 1;
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curBit++;
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}
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return result;
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}
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public static bool ContainsIgnoreCase(this string value, string other)
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{
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return value.IndexOf(other, StringComparison.CurrentCultureIgnoreCase) >= 0;
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}
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private static Regex _MultipleWhiteSpaceRegEx = new Regex(@" {2,}");
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public static string TrimMultipleWs(this string value)
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{
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if (string.IsNullOrEmpty(value))
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return "";
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return _MultipleWhiteSpaceRegEx.Replace(value, " ");
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}
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/// <summary>
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/// Converts value to a string in fixed point notation using invariant formating (english style decimal point)
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/// </summary>
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/// <param name="value">Value to be converted</param>
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/// <returns>String representation of value</returns>
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public static string ToInvariantString(this float value)
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{
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return value.ToString("F", NumberFormatInfo.InvariantInfo);
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}
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public static SRectF Scale(this SRectF rect, float scale)
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{
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return new SRectF(
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rect.X - rect.W * (scale - 1f),
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rect.Y - rect.H * (scale - 1f),
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rect.W + 2 * rect.W * (scale - 1f),
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rect.H + 2 * rect.H * (scale - 1f),
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rect.Z);
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}
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public static List<T> Shuffle<T>(this List<T> list)
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{
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for (int n = list.Count - 1; n >= 1; n--)
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{
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int k = CBase.Game.GetRandom(n);
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T value = list[k];
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list[k] = list[n];
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list[n] = value;
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}
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return list;
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}
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public static Size GetSize(this Bitmap bmp)
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{
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return new Size(bmp.Width, bmp.Height);
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}
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public static Rectangle GetRect(this Bitmap bmp)
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{
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return Rectangle.Round(new Rectangle(0, 0, bmp.Width, bmp.Height));
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}
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/// <summary>
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/// Resizes the bitmap to the given size creating a copy of it
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/// </summary>
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/// <param name="bmp"></param>
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/// <param name="newSize"></param>
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/// <returns>Resized bitmap or null on error</returns>
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public static Bitmap Resize(this Bitmap bmp, Size newSize)
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{
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Bitmap result = null;
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try
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{
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//Create a new Bitmap with the new sizes
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result = new Bitmap(newSize.Width, newSize.Height);
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//Scale the texture
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using (Graphics g = Graphics.FromImage(result))
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{
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.SmoothingMode = SmoothingMode.HighQuality;
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g.DrawImage(bmp, result.GetRect());
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}
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}
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catch (Exception)
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{
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if (result != null)
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{
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result.Dispose();
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result = null;
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}
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}
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return result;
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}
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}
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} |