src/Utils/SysImageList.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2003-2006, 2008-2010 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #include "stdafx.h"
  20 #include "SysImageList.h"
  21 #include "TGitPath.h"
  22
  23 // Singleton constructor and destructor (private)
  24
  25 CSysImageList * CSysImageList::instance = 0;
  26
  27 CSysImageList::CSysImageList()
  28 {
  29         SHFILEINFO ssfi;
  30         TCHAR windir[MAX_PATH] = {0};
  31         GetWindowsDirectory(windir, _countof(windir));  // MAX_PATH ok.
  32         HIMAGELIST hSystemImageList =
  33                 (HIMAGELIST)SHGetFileInfo(
  34                         windir,
  35                         0,
  36                         &ssfi, sizeof ssfi,
  37                         SHGFI_SYSICONINDEX | SHGFI_SMALLICON);
  38         Attach(hSystemImageList);
  39 }
  40
  41 CSysImageList::~CSysImageList()
  42 {
  43         Detach();
  44 }
  45
  46 // Singleton specific operations
  47
  48 CSysImageList& CSysImageList::GetInstance()
  49 {
  50         if (instance == 0)
  51                 instance = new CSysImageList;
  52         return *instance;
  53 }
  54
  55 void CSysImageList::Cleanup()
  56 {
  57         delete instance;
  58         instance = 0;
  59 }
  60
  61 // Operations
  62
  63 int CSysImageList::AddIcon(const HICON hIcon)
  64 {
  65         return this->Add(hIcon);
  66 }
  67
  68 int CSysImageList::GetDirIconIndex() const
  69 {
  70         return GetFileIcon(_T("Doesn't matter"), FILE_ATTRIBUTE_DIRECTORY, 0);
  71 }
  72
  73 int CSysImageList::GetDirOpenIconIndex() const
  74 {
  75         return GetFileIcon(_T("Doesn't matter"), FILE_ATTRIBUTE_DIRECTORY, SHGFI_OPENICON);
  76 }
  77
  78 int CSysImageList::GetDefaultIconIndex() const
  79 {
  80         return GetFileIcon(_T(""), FILE_ATTRIBUTE_NORMAL, 0);
  81 }
  82
  83 int CSysImageList::GetFileIconIndex(const CString& file) const
  84 {
  85         return GetFileIcon(file, FILE_ATTRIBUTE_NORMAL, 0);
  86 }
  87
  88 int CSysImageList::GetPathIconIndex(const CTGitPath& filePath) const
  89 {
  90         CString strExtension = filePath.GetFileExtension();
  91         strExtension.MakeUpper();
  92         IconIndexMap::iterator it = m_indexCache.lower_bound(strExtension);
  93         if (it == m_indexCache.end() || strExtension < it->first)
  94         {
  95                 // We don't have this extension in the map
  96                 int iconIndex = GetFileIconIndex(filePath.GetFilename());
  97                 it = m_indexCache.insert(it, std::make_pair(strExtension, iconIndex));
  98         }
  99         // We must have found it
 100         return it->second;
 101 }
 102
 103 int CSysImageList::GetFileIcon( LPCTSTR file, DWORD attributes, UINT extraFlags ) const
 104 {
 105         SHFILEINFO sfi;
 106         SecureZeroMemory(&sfi, sizeof sfi);
 107
 108         SHGetFileInfo(
 109                 file,
 110                 attributes,
 111                 &sfi, sizeof sfi,
 112                 SHGFI_SYSICONINDEX | SHGFI_SMALLICON | SHGFI_USEFILEATTRIBUTES | extraFlags);
 113
 114         return sfi.iIcon;
 115 }