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138 lines
No EOL
5.7 KiB
C#
138 lines
No EOL
5.7 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) 2007-2018 ShareX Team
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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;
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using System.IO;
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using System.Windows.Forms;
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namespace ShareX.UploadersLib
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{
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/// <summary>
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/// Maintains a list of currently added file extensions
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/// </summary>
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public class IconListManager
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{
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private Hashtable _extensionList = new Hashtable();
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private ArrayList _imageLists = new ArrayList(); //will hold ImageList objects
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private IconReader.IconSize _iconSize;
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private bool ManageBothSizes; //flag, used to determine whether to create two ImageLists.
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/// <summary>
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/// Creates an instance of <c>IconListManager</c> that will add icons to a single <c>ImageList</c> using the
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/// specified <c>IconSize</c>.
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/// </summary>
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/// <param name="imageList"><c>ImageList</c> to add icons to.</param>
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/// <param name="iconSize">Size to use (either 32 or 16 pixels).</param>
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public IconListManager(ImageList imageList, IconReader.IconSize iconSize)
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{
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// Initialise the members of the class that will hold the image list we're
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// targeting, as well as the icon size (32 or 16)
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_imageLists.Add(imageList);
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_iconSize = iconSize;
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}
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/// <summary>
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/// Creates an instance of IconListManager that will add icons to two <c>ImageList</c> types. The two
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/// image lists are intended to be one for large icons, and the other for small icons.
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/// </summary>
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/// <param name="smallImageList">The <c>ImageList</c> that will hold small icons.</param>
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/// <param name="largeImageList">The <c>ImageList</c> that will hold large icons.</param>
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public IconListManager(ImageList smallImageList, ImageList largeImageList)
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{
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//add both our image lists
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_imageLists.Add(smallImageList);
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_imageLists.Add(largeImageList);
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//set flag
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ManageBothSizes = true;
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}
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/// <summary>
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/// Used internally, adds the extension to the hashtable, so that its value can then be returned.
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/// </summary>
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/// <param name="Extension"><c>String</c> of the file's extension.</param>
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/// <param name="ImageListPosition">Position of the extension in the <c>ImageList</c>.</param>
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private void AddExtension(string Extension, int ImageListPosition)
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{
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_extensionList.Add(Extension, ImageListPosition);
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}
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/// <summary>
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/// Called publicly to add a file's icon to the ImageList.
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/// </summary>
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/// <param name="filePath">Full path to the file.</param>
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/// <returns>Integer of the icon's position in the ImageList</returns>
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public int AddFileIcon(string filePath)
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{
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// Check if the file exists, otherwise, throw exception.
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if (!File.Exists(filePath)) throw new FileNotFoundException("File does not exist");
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// Split it down so we can get the extension
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string[] splitPath = filePath.Split(new Char[] { '.' });
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string extension = (string)splitPath.GetValue(splitPath.GetUpperBound(0));
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//Check that we haven't already got the extension, if we have, then
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//return back its index
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if (_extensionList.ContainsKey(extension.ToUpper()))
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{
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return (int)_extensionList[extension.ToUpper()]; //return existing index
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}
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// It's not already been added, so add it and record its position.
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int pos = ((ImageList)_imageLists[0]).Images.Count; //store current count -- new item's index
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if (ManageBothSizes)
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{
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//managing two lists, so add it to small first, then large
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((ImageList)_imageLists[0]).Images.Add(IconReader.GetFileIcon(filePath, IconReader.IconSize.Small, false));
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((ImageList)_imageLists[1]).Images.Add(IconReader.GetFileIcon(filePath, IconReader.IconSize.Large, false));
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}
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else
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{
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//only doing one size, so use IconSize as specified in _iconSize.
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((ImageList)_imageLists[0]).Images.Add(IconReader.GetFileIcon(filePath, _iconSize, false)); //add to image list
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}
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AddExtension(extension.ToUpper(), pos); // add to hash table
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return pos;
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}
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/// <summary>
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/// Clears any <c>ImageLists</c> that <c>IconListManager</c> is managing.
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/// </summary>
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public void ClearLists()
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{
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foreach (ImageList imageList in _imageLists)
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{
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imageList.Images.Clear(); //clear current imagelist.
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}
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_extensionList.Clear(); //empty hashtable of entries too.
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}
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}
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} |