3.13

Windows/Shell.cpp

@@ -0,0 +1,180 @@
+// Windows/Shell.cpp
+
+#include "StdAfx.h"
+
+#include "Common/MyCom.h"
+#include "Windows/Shell.h"
+#include "Windows/COM.h"
+
+namespace NWindows {
+namespace NShell {
+
+/////////////////////////
+// CItemIDList
+
+void CItemIDList::Free()
+{ 
+  if(m_Object == NULL)
+    return;
+  CMyComPtr<IMalloc> shellMalloc;
+  if(::SHGetMalloc(&shellMalloc) != NOERROR)
+    throw 41099;
+  shellMalloc->Free(m_Object);
+  m_Object = NULL;
+}
+
+/*
+CItemIDList::(LPCITEMIDLIST itemIDList): m_Object(NULL)
+  {  *this = itemIDList; }
+CItemIDList::(const CItemIDList& itemIDList): m_Object(NULL)
+  {  *this = itemIDList; }
+
+CItemIDList& CItemIDList::operator=(LPCITEMIDLIST object)
+{
+  Free();
+  if (object != 0)
+  {
+    UINT32 size = GetSize(object);
+    m_Object = (LPITEMIDLIST)CoTaskMemAlloc(size);
+    if(m_Object != NULL)
+      MoveMemory(m_Object, object, size);
+  }
+  return *this;
+}
+
+CItemIDList& CItemIDList::operator=(const CItemIDList &object)
+{
+  Free();
+  if(object.m_Object != NULL)
+  {
+    UINT32 size = GetSize(object.m_Object);
+    m_Object = (LPITEMIDLIST)CoTaskMemAlloc(size);
+    if(m_Object != NULL)
+      MoveMemory(m_Object, object.m_Object, size);
+  }
+  return *this;
+}
+*/
+/////////////////////////////
+// CDrop
+
+void CDrop::Attach(HDROP object)
+{
+  Free();
+  m_Object = object;
+  m_Assigned = true;
+}
+
+void CDrop::Free()
+{
+  if(m_MustBeFinished && m_Assigned)
+    Finish();
+  m_Assigned = false;
+}
+
+CDrop::~CDrop()
+{
+  Free();
+}
+
+UINT CDrop::QueryFile(UINT fileIndex, LPTSTR fileName, UINT fileNameSize)
+{
+  return ::DragQueryFile(m_Object, fileIndex, fileName, fileNameSize);
+}
+
+UINT CDrop::QueryCountOfFiles()
+{
+  return QueryFile(0xFFFFFFFF, NULL, 0);
+}
+
+CSysString CDrop::QueryFileName(UINT fileIndex)
+{
+  CSysString fileName;
+  UINT bufferSize = QueryFile(fileIndex, NULL, 0);
+  QueryFile(fileIndex, fileName.GetBuffer(bufferSize), bufferSize + 1);
+  fileName.ReleaseBuffer();
+  return fileName;
+}
+
+void CDrop::QueryFileNames(CSysStringVector &fileNames)
+{
+  fileNames.Clear();
+  UINT numFiles = QueryCountOfFiles();
+  fileNames.Reserve(numFiles);
+  for(UINT i = 0; i < numFiles; i++)
+    fileNames.Add(QueryFileName(i));
+}
+
+
+/////////////////////////////
+// Functions
+
+bool GetPathFromIDList(LPCITEMIDLIST itemIDList, CSysString &path)
+{
+  bool result = BOOLToBool(::SHGetPathFromIDList(itemIDList, 
+      path.GetBuffer(MAX_PATH)));
+  path.ReleaseBuffer();
+  return result;
+}
+
+bool BrowseForFolder(LPBROWSEINFO browseInfo, CSysString &resultPath)
+{
+  NWindows::NCOM::CComInitializer comInitializer;
+  LPITEMIDLIST itemIDList = ::SHBrowseForFolder(browseInfo);
+  if (itemIDList == NULL)
+    return false;
+  CItemIDList itemIDListHolder;
+  itemIDListHolder.Attach(itemIDList);
+  return GetPathFromIDList(itemIDList, resultPath);
+}
+
+
+int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, LPARAM data) 
+{
+  switch(uMsg) 
+  {
+    case BFFM_INITIALIZED:
+    {
+      SendMessage(hwnd, BFFM_SETSELECTION, TRUE, data);
+      break;
+    }
+    case BFFM_SELCHANGED: 
+    {
+      TCHAR dir[MAX_PATH];
+      if (::SHGetPathFromIDList((LPITEMIDLIST) lp , dir)) 
+        SendMessage(hwnd, BFFM_SETSTATUSTEXT, 0, (LPARAM)dir);
+      else
+        SendMessage(hwnd, BFFM_SETSTATUSTEXT, 0, (LPARAM)TEXT(""));
+      break;
+    }
+    default:
+      break;
+  }
+  return 0;
+}
+
+
+bool BrowseForFolder(HWND owner, LPCTSTR title, UINT ulFlags, 
+    LPCTSTR initialFolder, CSysString &resultPath)
+{
+  CSysString displayName;
+  BROWSEINFO browseInfo;
+  browseInfo.hwndOwner = owner;
+  browseInfo.pidlRoot = NULL; 
+  browseInfo.pszDisplayName = displayName.GetBuffer(MAX_PATH);
+  browseInfo.lpszTitle = title;
+  browseInfo.ulFlags = ulFlags;
+  browseInfo.lpfn = (initialFolder != NULL) ? BrowseCallbackProc : NULL;
+  browseInfo.lParam = (LPARAM)initialFolder;
+  return BrowseForFolder(&browseInfo, resultPath);
+}
+
+bool BrowseForFolder(HWND owner, LPCTSTR title, 
+    LPCTSTR initialFolder, CSysString &resultPath)
+{
+  return BrowseForFolder(owner, title, 
+      BIF_NEWDIALOGSTYLE | BIF_RETURNONLYFSDIRS | BIF_STATUSTEXT, initialFolder, resultPath);
+  // BIF_STATUSTEXT; BIF_USENEWUI   (Version 5.0)
+}
+
+}}