mirror of
https://github.com/ShareX/ShareX.git
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442 lines
No EOL
14 KiB
C#
442 lines
No EOL
14 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (C) 2007-2014 ShareX Developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using Encoder = System.Drawing.Imaging.Encoder;
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namespace HelpersLib
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{
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public static class Extensions
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{
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public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
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{
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if (source == null) throw new ArgumentNullException("source");
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if (action == null) throw new ArgumentNullException("action");
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foreach (T item in source)
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{
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action(item);
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}
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}
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public static IEnumerable<TResult> Zip<TFirst, TSecond, TResult>(this IEnumerable<TFirst> first,
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IEnumerable<TSecond> second, Func<TFirst, TSecond, TResult> resultSelector)
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{
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using (IEnumerator<TFirst> e1 = first.GetEnumerator())
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using (IEnumerator<TSecond> e2 = second.GetEnumerator())
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{
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while (e1.MoveNext() && e2.MoveNext())
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{
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yield return resultSelector(e1.Current, e2.Current);
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}
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}
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}
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public static byte[] GetBytes(this Image img)
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{
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using (MemoryStream ms = new MemoryStream())
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{
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img.Save(ms, img.RawFormat);
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return ms.ToArray();
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}
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}
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public static Stream GetStream(this Image img)
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{
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MemoryStream ms = new MemoryStream();
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img.Save(ms, img.RawFormat);
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return ms;
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}
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public static ImageCodecInfo GetCodecInfo(this ImageFormat format)
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{
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return ImageCodecInfo.GetImageEncoders().FirstOrDefault(info => info.FormatID.Equals(format.Guid));
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}
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public static string GetMimeType(this ImageFormat format)
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{
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ImageCodecInfo codec = format.GetCodecInfo();
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if (codec != null) return codec.MimeType;
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return "image/unknown";
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}
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public static bool IsValidIndex<T>(this T[] array, int index)
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{
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return array != null && index >= 0 && index < array.Length;
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}
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public static bool IsValidIndex<T>(this List<T> list, int index)
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{
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return list != null && index >= 0 && index < list.Count;
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}
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public static T ReturnIfValidIndex<T>(this T[] array, int index)
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{
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if (array.IsValidIndex(index)) return array[index];
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return default(T);
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}
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public static T ReturnIfValidIndex<T>(this List<T> list, int index)
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{
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if (list.IsValidIndex(index)) return list[index];
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return default(T);
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}
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public static T Last<T>(this T[] array, int index = 0)
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{
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if (array.Length > index) return array[array.Length - index - 1];
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return default(T);
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}
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public static T Last<T>(this List<T> list, int index = 0)
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{
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if (list.Count > index) return list[list.Count - index - 1];
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return default(T);
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}
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public static double ToDouble(this Version value)
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{
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return Math.Max(value.Major, 0) * Math.Pow(10, 12) +
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Math.Max(value.Minor, 0) * Math.Pow(10, 9) +
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Math.Max(value.Build, 0) * Math.Pow(10, 6) +
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Math.Max(value.Revision, 0);
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}
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public static bool IsValid(this Rectangle rect)
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{
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return rect.Width > 0 && rect.Height > 0;
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}
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public static Size Offset(this Size size, int offset)
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{
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return new Size(size.Width + offset, size.Height + offset);
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}
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public static Rectangle RectangleOffset(this Rectangle rect, int offset)
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{
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return new Rectangle(rect.X - offset, rect.Y - offset, rect.Width + offset * 2, rect.Height + offset * 2);
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}
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public static Rectangle LocationOffset(this Rectangle rect, int offset)
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{
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return new Rectangle(rect.X + offset, rect.Y + offset, rect.Width, rect.Height);
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}
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public static Rectangle LocationOffset(this Rectangle rect, int x, int y)
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{
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return new Rectangle(rect.X + x, rect.Y + y, rect.Width, rect.Height);
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}
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public static Rectangle SizeOffset(this Rectangle rect, int offset)
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{
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return rect.SizeOffset(offset, offset);
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}
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public static Rectangle SizeOffset(this Rectangle rect, int width, int height)
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{
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return new Rectangle(rect.X, rect.Y, rect.Width + width, rect.Height + height);
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}
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public static string Join<T>(this T[] array, string separator = " ")
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{
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StringBuilder sb = new StringBuilder();
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if (array != null)
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{
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foreach (T t in array)
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{
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if (sb.Length > 0 && !string.IsNullOrEmpty(separator)) sb.Append(separator);
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sb.Append(t);
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}
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}
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return sb.ToString();
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}
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public static void BeginUpdate(this RichTextBox rtb)
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{
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NativeMethods.SendMessage(rtb.Handle, (int)WindowsMessages.SETREDRAW, 0, 0);
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}
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public static void EndUpdate(this RichTextBox rtb)
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{
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NativeMethods.SendMessage(rtb.Handle, (int)WindowsMessages.SETREDRAW, 1, 0);
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rtb.Invalidate();
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}
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public static void AddContextMenu(this RichTextBox rtb)
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{
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if (rtb.ContextMenuStrip == null)
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{
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ContextMenuStrip cms = new ContextMenuStrip { ShowImageMargin = false };
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ToolStripMenuItem tsmiCut = new ToolStripMenuItem("Cut");
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tsmiCut.Click += (sender, e) => rtb.Cut();
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cms.Items.Add(tsmiCut);
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ToolStripMenuItem tsmiCopy = new ToolStripMenuItem("Copy");
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tsmiCopy.Click += (sender, e) => rtb.Copy();
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cms.Items.Add(tsmiCopy);
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ToolStripMenuItem tsmiPaste = new ToolStripMenuItem("Paste");
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tsmiPaste.Click += (sender, e) => rtb.Paste();
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cms.Items.Add(tsmiPaste);
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rtb.ContextMenuStrip = cms;
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}
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}
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public static void SaveJPG(this Image img, Stream stream, int quality)
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{
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quality = quality.Between(0, 100);
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EncoderParameters encoderParameters = new EncoderParameters(1);
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encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, quality);
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img.Save(stream, ImageFormat.Jpeg.GetCodecInfo(), encoderParameters);
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}
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public static void SaveJPG(this Image img, string filepath, int quality)
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{
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quality = quality.Between(0, 100);
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EncoderParameters encoderParameters = new EncoderParameters(1);
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encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, quality);
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img.Save(filepath, ImageFormat.Jpeg.GetCodecInfo(), encoderParameters);
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}
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public static void SaveGIF(this Image img, Stream stream, GIFQuality quality)
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{
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if (quality == GIFQuality.Default)
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{
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img.Save(stream, ImageFormat.Gif);
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}
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else
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{
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Quantizer quantizer;
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switch (quality)
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{
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case GIFQuality.Grayscale:
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quantizer = new GrayscaleQuantizer();
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break;
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case GIFQuality.Bit4:
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quantizer = new OctreeQuantizer(15, 4);
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break;
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default:
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case GIFQuality.Bit8:
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quantizer = new OctreeQuantizer(255, 4);
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break;
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}
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using (Bitmap quantized = quantizer.Quantize(img))
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{
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quantized.Save(stream, ImageFormat.Gif);
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}
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}
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}
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public static long ToUnix(this DateTime dateTime)
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{
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return (dateTime.Ticks - 621355968000000000) / 10000000;
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}
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public static void AppendTextToSelection(this TextBox tb, string text)
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{
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if (!string.IsNullOrEmpty(text))
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{
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int start = tb.SelectionStart;
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tb.Text = tb.Text.Insert(start, text);
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tb.SelectionStart = start + text.Length;
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}
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}
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public static void RadioCheck(this ToolStripMenuItem tsmi)
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{
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ToolStrip parent = tsmi.GetCurrentParent();
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foreach (ToolStripMenuItem tsmiParent in parent.Items)
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{
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if (tsmiParent != tsmi)
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{
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tsmiParent.Checked = false;
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}
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}
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tsmi.Checked = true;
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}
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public static void InvokeSafe(this Control control, Action action)
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{
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if (control != null && !control.IsDisposed)
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{
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if (control.InvokeRequired)
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{
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control.Invoke(action);
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}
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else
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{
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action();
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}
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}
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}
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public static void ShowActivate(this Form form)
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{
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if (!form.Visible)
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{
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form.Show();
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}
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if (form.WindowState == FormWindowState.Minimized)
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{
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form.WindowState = FormWindowState.Normal;
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}
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form.BringToFront();
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form.Activate();
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}
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public static int WeekOfYear(this DateTime dateTime)
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{
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return CultureInfo.CurrentCulture.Calendar.GetWeekOfYear(dateTime, CalendarWeekRule.FirstDay, DayOfWeek.Monday);
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}
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public static Icon ToIcon(this Bitmap bmp)
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{
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IntPtr handle = bmp.GetHicon();
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return Icon.FromHandle(handle);
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}
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public static void DisposeHandle(this Icon icon)
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{
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if (icon.Handle != IntPtr.Zero)
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{
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NativeMethods.DestroyIcon(icon.Handle);
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}
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}
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public static void ApplyDefaultPropertyValues(this object self)
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{
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foreach (PropertyDescriptor prop in TypeDescriptor.GetProperties(self))
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{
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DefaultValueAttribute attr = prop.Attributes[typeof(DefaultValueAttribute)] as DefaultValueAttribute;
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if (attr != null) prop.SetValue(self, attr.Value);
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}
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}
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public static void MoveUp(this ListViewItem lvi)
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{
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ListView lv = lvi.ListView;
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if (lv.Items.Count > 1)
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{
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int index = lvi.Index;
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if (index == 0)
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{
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index = lv.Items.Count - 1;
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}
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else
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{
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index--;
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}
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lv.Items.Remove(lvi);
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lv.Items.Insert(index, lvi);
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}
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lv.Focus();
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lvi.EnsureVisible();
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lvi.Selected = true;
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}
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public static void MoveDown(this ListViewItem lvi)
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{
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ListView lv = lvi.ListView;
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if (lv.Items.Count > 1)
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{
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int index = lvi.Index;
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if (index == lv.Items.Count - 1)
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{
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index = 0;
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}
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else
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{
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index++;
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}
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lv.Items.Remove(lvi);
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lv.Items.Insert(index, lvi);
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}
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lv.Focus();
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lvi.EnsureVisible();
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lvi.Selected = true;
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}
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public static Bitmap CreateEmptyBitmap(this Image img, int widthOffset = 0, int heightOffset = 0, PixelFormat pixelFormat = PixelFormat.Format32bppArgb)
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{
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Bitmap bmp = new Bitmap(img.Width + widthOffset, img.Height + heightOffset, pixelFormat);
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bmp.SetResolution(img.HorizontalResolution, img.VerticalResolution);
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return bmp;
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}
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public static string GetDescription(this Type type)
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{
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DescriptionAttribute[] attributes = (DescriptionAttribute[])type.GetCustomAttributes(typeof(DescriptionAttribute), false);
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return (attributes.Length > 0) ? attributes[0].Description : type.Name;
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}
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public static IEnumerable<T> TakeLast<T>(this IEnumerable<T> source, int count)
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{
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return source.Reverse().Take(count).Reverse();
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}
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public static void Check(this ToolStripMenuItem tsmi)
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{
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if (tsmi != null)
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{
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foreach (ToolStripMenuItem item in tsmi.GetCurrentParent().Items)
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{
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if (item != null)
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{
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item.Checked = item == tsmi;
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}
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}
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}
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}
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public static Version Normalize(this Version version)
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{
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return new Version(Math.Max(version.Major, 0), Math.Max(version.Minor, 0), Math.Max(version.Build, 0), Math.Max(version.Revision, 0));
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}
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}
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} |