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//
// (C) Copyright by Victor Derks <vba64@xs4all.nl>
//
// See README.TXT for detailed details of the software licence.
//
#include "stdafx.h"
#include "vvvitem.h"
#include "columns.h"
#include "../include/shellitemid.h"
#include "../include/macros.h"
#include "../include/strutil.h"
#include "../include/util.h"
#include "../include/imagelistindex.h"
#include "resource.h"
CVVVItem::CVVVItem(const SHITEMID& shitemid)
{
// Shell item IDs can be passed from external sources, validate
RaiseExceptionIf(shitemid.cb < sizeof(int) + sizeof(int) + sizeof(wchar_t));
CShellItemIterator it(shitemid);
_bFolder = it.GetBool();
_nID = it.GetUnsignedInt();
_nSize = it.GetUnsignedInt();
_strName = it.GetString();
}
// Note: 'switch' is used in this example to show all the possible options.
CString CVVVItem::GetDisplayName(SHGDNF shgdnf) const
{
switch (shgdnf)
{
case SHGDN_NORMAL:
case SHGDN_INFOLDER:
break;
case SHGDN_INFOLDER | SHGDN_FOREDITING:
break; // override if item has a special edit name
case SHGDN_INFOLDER | SHGDN_FORADDRESSBAR:
break; // override if item has a special name for the address bar
case SHGDN_INFOLDER | SHGDN_FORPARSING:
case SHGDN_FORPARSING: // note parent should append folder name before item name.
return ToString(GetID()); // return unique string (vvv items are unique by ID)
default:
ATLTRACE2(atlTraceCOM, 0, _T("CVVVItem::GetDisplayName (shgdnf=%d)\n"), shgdnf);
break;
}
return _strName;
}
void CVVVItem::SetDisplayName(CString strNewName, SHGDNF shgndf)
{
ATLASSERT(shgndf == SHGDN_NORMAL || shgndf == SHGDN_INFOLDER);
(shgndf); // not used in release.
_strName = strNewName;
}
SFGAOF CVVVItem::GetAttributeOf(bool bSingleSelect, bool bReadOnly) const
{
if (IsFolder())
{
return SFGAO_FOLDER | SFGAO_HASSUBFOLDER;
}
else
{
SFGAOF sfgaof = SFGAO_CANCOPY;
// Tip: to debug error handling, disable the readonly check and make the .vvv readonly
if (!bReadOnly)
{
sfgaof |= SFGAO_CANRENAME | SFGAO_CANDELETE | SFGAO_CANMOVE;
// Note: standard windows UI allows the rename option for multiple items.
}
if (bSingleSelect)
{
sfgaof |= SFGAO_HASPROPSHEET;
}
return sfgaof;
}
}
SHITEMID* CVVVItem::CreateShellItemId(bool bAddEmptyId) const
{
CStringW strName = CT2W(_strName);
CShellItemIdMember members[] =
{
CShellItemIdMember(&_bFolder),
CShellItemIdMember(&_nID),
CShellItemIdMember(&_nSize),
CShellItemIdMember(strName)
};
CShellItemId shellitemid(members, MSF_ARRAY_SIZE(members), bAddEmptyId);
return shellitemid.Detach();
}
int CVVVItem::Compare(const CVVVItem& item, int nCompareBy, bool /*bCanonicalOnly*/) const
{
switch (nCompareBy)
{
case COLUMN_NAME:
return CompareByName(item);
case COLUMN_SIZE:
return UIntCmp(_nSize, item._nSize);
default:
ATLASSERT(!"Illegal nCompare option detected");
RaiseException();
}
}
CString CVVVItem::GetItemDetailsOf(UINT iColumn) const
{
switch (iColumn)
{
case COLUMN_NAME:
return GetDisplayName(SHGDN_NORMAL);
case COLUMN_SIZE:
if (IsFolder())
return CString();
else
return ToString(GetSize());
default:
ATLASSERT(false);
RaiseException();
}
}
CString CVVVItem::GetInfoTipText() const
{
CString strText = LoadString(IDS_SHELLEXT_NAME) + _T(": ") + GetDisplayName() + _T("\n");
strText += LoadString(IDS_SHELLEXT_SIZE) + _T(": ") + ToString(GetSize());
return strText;
}
int CVVVItem::GetIconOf(UINT flags) const
{
if (IsFolder())
return IsBitSet(flags, GIL_OPENICON) ?
STD_IMAGELIST_INDEX_FOLDER_OPEN :
STD_IMAGELIST_INDEX_FOLDER_PLAIN;
return STD_IMAGELIST_INDEX_DOCUMENT_FILLED;
}
// Note: can only return 0 if same items are compared.
int CVVVItem::CompareByName(const CVVVItem& item) const
{
// Compare first by folder, to make sure folders are listed before files.
if (IsFolder())
{
if (!item.IsFolder())
return -1;
}
else
{
if (item.IsFolder())
return 1;
}
int nResult = StrCmp(GetName(), item.GetName());
if (nResult != 0)
return nResult; // different by name
// VVV items can be equal by name, but are always different by ID.
return UIntCmp(_nID, item._nID);
}
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Victor lives in Nijmegen, the oldest city in The Netherlands.
He studied Applied Physics in Delft and works Hitachi High-Tech Analytical Science.