subsys/system/explorer/Seashell/SeaShellExt/ShellDetails.cpp

   1 //*******************************************************************************
   2 // COPYRIGHT NOTES
   3 // ---------------
   4 // You may use this source code, compile or redistribute it as part of your application
   5 // for free. You cannot redistribute it as a part of a software development
   6 // library without the agreement of the author. If the sources are
   7 // distributed along with the application, you should leave the original
   8 // copyright notes in the source code without any changes.
   9 // This code can be used WITHOUT ANY WARRANTIES at your own risk.
  10 //
  11 // For the latest updates to this code, check this site:
  12 // http://www.masmex.com
  13 // after Sept 2000
  14 //
  15 // Copyright(C) 2000 Philip Oldaker <email: philip@masmex.com>
  16 //*******************************************************************************
  17
  18 #include "stdafx.h"
  19 #include "ShellDetails.h"
  20
  21 HRESULT CShellDetails::GetDetailsOf(LPCITEMIDLIST pidl,UINT iColumn,LPSHELLDETAILS pDetail)
  22 {
  23         HRESULT hr=E_FAIL;
  24         if (m_pUnk == NULL)
  25                 return hr;
  26         IShellFolder2 *pShellFolder2=NULL;
  27         hr = m_pUnk->QueryInterface(IID_IShellFolder2,(LPVOID*)&pShellFolder2);
  28         if (SUCCEEDED(hr))
  29         {
  30                 hr = pShellFolder2->GetDetailsOf(pidl,iColumn,pDetail);
  31                 pShellFolder2->Release();
  32         }
  33         else
  34         {
  35                 IShellDetails *pShellDetails=NULL;
  36                 hr = m_pUnk->QueryInterface(IID_IShellDetails,(LPVOID*)&pShellDetails);
  37                 if (SUCCEEDED(hr))
  38                 {
  39                         hr = pShellDetails->GetDetailsOf(pidl,iColumn,pDetail);
  40                         pShellDetails->Release();
  41                 }
  42         }
  43         return hr;
  44 }
  45
  46 bool CShellDetails::IsValidDetails()
  47 {
  48         return m_pUnk != NULL;
  49 }
  50
  51 void CShellDetails::SetShellDetails(IUnknown *pUnk)
  52 {
  53         FreeInterfaces();
  54         if (pUnk)
  55         {
  56                 m_pUnk = pUnk;
  57                 m_pUnk->AddRef();
  58         }
  59 }
  60
  61 CShellDetails::CShellDetails(const CShellDetails &rOther)
  62  :      m_pUnk(rOther.m_pUnk)
  63 {
  64         m_pUnk->AddRef();
  65 }
  66
  67 const CShellDetails &CShellDetails::operator=(const CShellDetails &rOther)
  68 {
  69         if (this == &rOther)
  70                 return *this;
  71
  72         FreeInterfaces();
  73         m_pUnk = rOther.m_pUnk;
  74         m_pUnk->AddRef();
  75
  76         return *this;
  77 }
  78
  79 void CShellDetails::FreeInterfaces()
  80 {
  81         if (m_pUnk)
  82         {
  83                 m_pUnk->Release();
  84                 m_pUnk = NULL;
  85         }
  86 }
  87
  88 CShellDetails::CShellDetails()
  89 {
  90         m_pUnk = NULL;
  91 }
  92
  93 CShellDetails::~CShellDetails()
  94 {
  95         FreeInterfaces();
  96 }