base/shell/explorer/startmnu.cpp

   1 /*
   2  * ReactOS Explorer
   3  *
   4  * Copyright 2006 - 2007 Thomas Weidenmueller <w3seek@reactos.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include "precomp.h"
  22
  23 HRESULT
  24 UpdateStartMenu(IN OUT IMenuPopup *pMenuPopup,
  25                 IN HBITMAP hbmBanner  OPTIONAL,
  26                 IN BOOL bSmallIcons)
  27 {
  28     CComPtr<IBanneredBar> pbb;
  29     HRESULT hRet;
  30
  31     hRet = pMenuPopup->QueryInterface(IID_PPV_ARG(IBanneredBar, &pbb));
  32     if (SUCCEEDED(hRet))
  33     {
  34         hRet = pbb->SetBitmap(hbmBanner);
  35
  36         /* Update the icon size */
  37         hRet = pbb->SetIconSize(bSmallIcons ? BMICON_SMALL : BMICON_LARGE);
  38     }
  39
  40     return hRet;
  41 }
  42
  43 IMenuPopup*
  44 CreateStartMenu(IN ITrayWindow *Tray,
  45                 OUT IMenuBand **ppMenuBand,
  46                 IN HBITMAP hbmBanner OPTIONAL,
  47                 IN BOOL bSmallIcons)
  48 {
  49     HRESULT hr;
  50     CComPtr<IMenuPopup> pMp;
  51     CComPtr<IUnknown> pSms;
  52     CComPtr<IMenuBand> pMb;
  53     CComPtr<IInitializeObject> pIo;
  54     CComPtr<IUnknown> pUnk;
  55     CComPtr<IBandSite> pBs;
  56     DWORD dwBandId = 0;
  57
  58     hr = CreateStartMenuSite(Tray, IID_PPV_ARG(IUnknown, &pSms));
  59     if (FAILED_UNEXPECTEDLY(hr))
  60         return NULL;
  61
  62     hr = _CStartMenu_CreateInstance(IID_PPV_ARG(IMenuPopup, &pMp));
  63     if (FAILED_UNEXPECTEDLY(hr))
  64         return NULL;
  65
  66     /* Set the menu site so we can handle messages */
  67     hr = IUnknown_SetSite(pMp, pSms);
  68     if (FAILED_UNEXPECTEDLY(hr))
  69         return NULL;
  70
  71     /* Initialize the menu object */
  72     hr = pMp->QueryInterface(IID_PPV_ARG(IInitializeObject, &pIo));
  73     if (SUCCEEDED(hr))
  74         hr = pIo->Initialize();
  75     else
  76         hr = S_OK;
  77
  78     /* Everything is initialized now. Let's get the IMenuBand interface. */
  79     if (FAILED_UNEXPECTEDLY(hr))
  80         return NULL;
  81
  82     hr = pMp->GetClient(&pUnk);
  83     if (FAILED_UNEXPECTEDLY(hr))
  84         return NULL;
  85
  86     hr = pUnk->QueryInterface(IID_PPV_ARG(IBandSite, &pBs));
  87     if (FAILED_UNEXPECTEDLY(hr))
  88         return NULL;
  89
  90     /* Finally we have the IBandSite interface, there's only one
  91        band in it that apparently provides the IMenuBand interface */
  92     hr = pBs->EnumBands(0, &dwBandId);
  93     if (FAILED_UNEXPECTEDLY(hr))
  94         return NULL;
  95
  96     hr = pBs->GetBandObject(dwBandId, IID_PPV_ARG(IMenuBand, &pMb));
  97     if (FAILED_UNEXPECTEDLY(hr))
  98         return NULL;
  99
 100     UpdateStartMenu(pMp,
 101                     hbmBanner,
 102                     bSmallIcons);
 103
 104     *ppMenuBand = pMb.Detach();
 105
 106     return pMp.Detach();
 107 }