#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (c) 2007-2017 ShareX Team
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at .
*/
#endregion License Information (GPL v3)
using System;
using System.Collections;
using System.IO;
using System.Windows.Forms;
namespace ShareX.UploadersLib
{
///
/// Maintains a list of currently added file extensions
///
public class IconListManager
{
private Hashtable _extensionList = new Hashtable();
private ArrayList _imageLists = new ArrayList(); //will hold ImageList objects
private IconReader.IconSize _iconSize;
private bool ManageBothSizes; //flag, used to determine whether to create two ImageLists.
///
/// Creates an instance of IconListManager that will add icons to a single ImageList using the
/// specified IconSize.
///
/// ImageList to add icons to.
/// Size to use (either 32 or 16 pixels).
public IconListManager(ImageList imageList, IconReader.IconSize iconSize)
{
// Initialise the members of the class that will hold the image list we're
// targeting, as well as the icon size (32 or 16)
_imageLists.Add(imageList);
_iconSize = iconSize;
}
///
/// Creates an instance of IconListManager that will add icons to two ImageList types. The two
/// image lists are intended to be one for large icons, and the other for small icons.
///
/// The ImageList that will hold small icons.
/// The ImageList that will hold large icons.
public IconListManager(ImageList smallImageList, ImageList largeImageList)
{
//add both our image lists
_imageLists.Add(smallImageList);
_imageLists.Add(largeImageList);
//set flag
ManageBothSizes = true;
}
///
/// Used internally, adds the extension to the hashtable, so that its value can then be returned.
///
/// String of the file's extension.
/// Position of the extension in the ImageList.
private void AddExtension(string Extension, int ImageListPosition)
{
_extensionList.Add(Extension, ImageListPosition);
}
///
/// Called publicly to add a file's icon to the ImageList.
///
/// Full path to the file.
/// Integer of the icon's position in the ImageList
public int AddFileIcon(string filePath)
{
// Check if the file exists, otherwise, throw exception.
if (!File.Exists(filePath)) throw new FileNotFoundException("File does not exist");
// Split it down so we can get the extension
string[] splitPath = filePath.Split(new Char[] { '.' });
string extension = (string)splitPath.GetValue(splitPath.GetUpperBound(0));
//Check that we haven't already got the extension, if we have, then
//return back its index
if (_extensionList.ContainsKey(extension.ToUpper()))
{
return (int)_extensionList[extension.ToUpper()]; //return existing index
}
// It's not already been added, so add it and record its position.
int pos = ((ImageList)_imageLists[0]).Images.Count; //store current count -- new item's index
if (ManageBothSizes)
{
//managing two lists, so add it to small first, then large
((ImageList)_imageLists[0]).Images.Add(IconReader.GetFileIcon(filePath, IconReader.IconSize.Small, false));
((ImageList)_imageLists[1]).Images.Add(IconReader.GetFileIcon(filePath, IconReader.IconSize.Large, false));
}
else
{
//only doing one size, so use IconSize as specified in _iconSize.
((ImageList)_imageLists[0]).Images.Add(IconReader.GetFileIcon(filePath, _iconSize, false)); //add to image list
}
AddExtension(extension.ToUpper(), pos); // add to hash table
return pos;
}
///
/// Clears any ImageLists that IconListManager is managing.
///
public void ClearLists()
{
foreach (ImageList imageList in _imageLists)
{
imageList.Images.Clear(); //clear current imagelist.
}
_extensionList.Clear(); //empty hashtable of entries too.
}
}
}