Notepad3/grepWinNP3/sktoolslib_mod/SysImageList.h
2021-04-03 03:11:54 +02:00

88 lines
2.5 KiB
C++

// sktoolslib - common files for SK tools
// Copyright (C) 2012-2013, 2020-2021 - Stefan Kueng
// 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,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#pragma once
#include <string>
#include <Commctrl.h>
#pragma comment(lib, "shell32.lib")
/**
* Provides simplified access to the system icons. Only small system icons
* are supported.
*
* \note This class is implemented as a singleton.
* The singleton instance is created when first accessed. See SYS_IMAGE_LIST() function
* easy access of the singleton instance. All
*/
class CSysImageList
{
// Singleton constructor and destructor (private)
private:
CSysImageList();
~CSysImageList();
// Singleton specific operations
public:
/**
* Returns a reference to the one and only instance of this class.
*/
static CSysImageList& GetInstance();
/**
* Frees all allocated resources (if necessary). Don't call this
* function when the image list is currently bound to any control!
*/
static void Cleanup();
// Operations
public:
/**
* Returns the icon index for a directory.
*/
static int GetDirIconIndex();
/**
* Returns the icon index for a directory that's open (e.g. for a tree control)
*/
static int GetDirOpenIconIndex();
/**
* Returns the icon index for a file which has no special icon associated.
*/
static int GetDefaultIconIndex();
/**
* Returns the icon index for the specified \a file. Only the file extension
* is used to determine the file's icon.
*/
static int GetFileIconIndex(const std::wstring& file);
operator HIMAGELIST() const;
private:
static CSysImageList* instance;
HIMAGELIST m_hSystemImageList;
};
/**
* \relates CSysImageList
* Singleton access for CSysImageList.
*/
// ReSharper disable once CppInconsistentNaming
inline CSysImageList& SYS_IMAGE_LIST() { return CSysImageList::GetInstance(); }