//==============================================================;
//
// This source code is only intended as a supplement to existing Microsoft documentation.
//
//
//
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
// Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
//
//
//
//==============================================================;
#include "tbarExt.h"
#include "globals.h"
#include "resource.h"
#include <commctrl.h> // Needed for button styles...
#include <crtdbg.h>
#include "resource.h"
#include <stdio.h>
#define ARRAYLEN(x) (sizeof(x) / sizeof((x)[0]))
// we need to do this to get around MMC.IDL - it explicitly defines
// the clipboard formats as WCHAR types...
#define _T_CCF_DISPLAY_NAME _T("CCF_DISPLAY_NAME")
#define _T_CCF_NODETYPE _T("CCF_NODETYPE")
#define _T_CCF_SNAPIN_CLASSID _T("CCF_SNAPIN_CLASSID")
// These are the clipboard formats that we must supply at a minimum.
// mmc.h actually defined these. We can make up our own to use for
// other reasons. We don't need any others at this time.
UINT CToolBarExtension::s_cfDisplayName = RegisterClipboardFormat(_T_CCF_DISPLAY_NAME);
UINT CToolBarExtension::s_cfNodeType = RegisterClipboardFormat(_T_CCF_NODETYPE);
UINT CToolBarExtension::s_cfSnapInCLSID = RegisterClipboardFormat(_T_CCF_SNAPIN_CLASSID);
CToolBarExtension::CToolBarExtension() : m_cref(0), m_ipControlBar(NULL),
m_ipToolbar(NULL)
{
OBJECT_CREATED
}
CToolBarExtension::~CToolBarExtension()
{
OBJECT_DESTROYED
}
///////////////////////
// IUnknown implementation
///////////////////////
STDMETHODIMP CToolBarExtension::QueryInterface(REFIID riid, LPVOID *ppv)
{
if (!ppv)
return E_FAIL;
*ppv = NULL;
if (IsEqualIID(riid, IID_IUnknown))
*ppv = static_cast<IExtendControlbar *>(this);
else if (IsEqualIID(riid, IID_IExtendControlbar))
*ppv = static_cast<IExtendControlbar *>(this);
if (*ppv)
{
reinterpret_cast<IUnknown *>(*ppv)->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(ULONG) CToolBarExtension::AddRef()
{
return InterlockedIncrement((LONG *)&m_cref);
}
STDMETHODIMP_(ULONG) CToolBarExtension::Release()
{
if (InterlockedDecrement((LONG *)&m_cref) == 0)
{
// we need to decrement our object count in the DLL
delete this;
return 0;
}
return m_cref;
}
HRESULT CToolBarExtension::ExtractData( IDataObject* piDataObject,
CLIPFORMAT cfClipFormat,
BYTE* pbData,
DWORD cbData )
{
HRESULT hr = S_OK;
FORMATETC formatetc = {cfClipFormat, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
STGMEDIUM stgmedium = {TYMED_HGLOBAL, NULL};
stgmedium.hGlobal = ::GlobalAlloc(GPTR, cbData);
do // false loop
{
if (NULL == stgmedium.hGlobal)
{
hr = E_OUTOFMEMORY;
break;
}
hr = piDataObject->GetDataHere( &formatetc, &stgmedium );
if ( FAILED(hr) )
{
break;
}
BYTE* pbNewData = reinterpret_cast<BYTE*>(stgmedium.hGlobal);
if (NULL == pbNewData)
{
hr = E_UNEXPECTED;
break;
}
::memcpy( pbData, pbNewData, cbData );
} while (FALSE); // false loop
if (NULL != stgmedium.hGlobal)
{
::GlobalFree(stgmedium.hGlobal);
}
return hr;
} // ExtractData()
HRESULT CToolBarExtension::ExtractString( IDataObject *piDataObject,
CLIPFORMAT cfClipFormat,
WCHAR *pstr,
DWORD cchMaxLength)
{
return ExtractData( piDataObject, cfClipFormat, (PBYTE)pstr, cchMaxLength );
}
HRESULT CToolBarExtension::ExtractSnapInCLSID( IDataObject* piDataObject, CLSID* pclsidSnapin )
{
return ExtractData( piDataObject, s_cfSnapInCLSID, (PBYTE)pclsidSnapin, sizeof(CLSID) );
}
HRESULT CToolBarExtension::ExtractObjectTypeGUID( IDataObject* piDataObject, GUID* pguidObjectType )
{
return ExtractData( piDataObject, s_cfNodeType, (PBYTE)pguidObjectType, sizeof(GUID) );
}
///////////////////////////////
// Interface IExtendControlBar
///////////////////////////////
static MMCBUTTON SnapinButtons1[] =
{
{ 0, ID_BUTTONSTART, TBSTATE_ENABLED, TBSTYLE_GROUP, L"Extension - Start Vehicle", L"Extension - Start Vehicle" },
{ 1, ID_BUTTONPAUSE, TBSTATE_ENABLED, TBSTYLE_GROUP, L"Extension - Pause Vehicle", L"Extension - Pause Vehicle"},
{ 2, ID_BUTTONSTOP, TBSTATE_ENABLED, TBSTYLE_GROUP, L"Extension - Stop Vehicle", L"Extension - Stop Vehicle" },
};
HRESULT CToolBarExtension::SetControlbar(
/* [in] */ LPCONTROLBAR pControlbar)
{
HRESULT hr = S_OK;
//
// Clean up
//
// if we've got a cached toolbar, release it
if (m_ipToolbar) {
m_ipToolbar->Release();
m_ipToolbar = NULL;
}
// if we've got a cached control bar, release it
if (m_ipControlBar) {
m_ipControlBar->Release();
m_ipControlBar = NULL;
}
//
// Install new pieces if necessary
//
// if a new one came in, cache and AddRef
if (pControlbar) {
m_ipControlBar = pControlbar;
m_ipControlBar->AddRef();
hr = m_ipControlBar->Create(TOOLBAR, // type of control to be created
dynamic_cast<IExtendControlbar *>(this),
reinterpret_cast<IUnknown **>(&m_ipToolbar));
_ASSERT(SUCCEEDED(hr));
// add the bitmap to the toolbar
HBITMAP hbmp = LoadBitmap(g_hinst, MAKEINTRESOURCE(IDR_TOOLBAR1));
hr = m_ipToolbar->AddBitmap(3, hbmp, 16, 16, RGB(0, 128, 128)); // NOTE, hardcoded value 3
_ASSERT(SUCCEEDED(hr));
// Add the buttons to the toolbar
hr = m_ipToolbar->AddButtons(ARRAYLEN(SnapinButtons1), SnapinButtons1);
_ASSERT(SUCCEEDED(hr));
}
return hr;
}
HRESULT CToolBarExtension::ControlbarNotify(
/* [in] */ MMC_NOTIFY_TYPE event,
/* [in] */ LPARAM arg,
/* [in] */ LPARAM param)
{
_TCHAR pszMsg[255];
BYTE *pbVehicleStatus = NULL;
HRESULT hr = S_OK;
if (event == MMCN_SELECT) {
BOOL bScope = (BOOL) LOWORD(arg);
BOOL bSelect = (BOOL) HIWORD(arg);
if (bSelect) {
// Always make sure the toolbar is attached
hr = m_ipControlBar->Attach(TOOLBAR, m_ipToolbar);
// Set button states
//fake value to set toolbar button states
iStatus = RUNNING;
SetToolbarButtons(iStatus);
} else {
// Always make sure the toolbar is detached
hr = m_ipControlBar->Detach(m_ipToolbar);
}
} else if (event == MMCN_BTN_CLICK) {
//the arg parameter contains the data object from the primary
//snap-in. Use it to get the display name of the currently selected item
WCHAR pszName[255];
HRESULT hr = ExtractString(reinterpret_cast<IDataObject *>(arg), s_cfDisplayName, pszName, sizeof(pszName));
MAKE_TSTRPTR_FROMWIDE(ptrname, pszName);
switch ((int)param)
{
case ID_BUTTONSTART:
iStatus = RUNNING;
break;
case ID_BUTTONPAUSE:
iStatus = PAUSED;
break;
case ID_BUTTONSTOP:
iStatus = STOPPED;
break;
}
_stprintf(pszMsg, _T("%s selected and extension button %s pressed"), ptrname,
(long)param == ID_BUTTONSTART ? _T("1") :
(long)param == ID_BUTTONPAUSE ? _T("2") :
(long)param == ID_BUTTONSTOP ? _T("3") : _T("!!!unknown command!!!"));
::MessageBox(NULL, pszMsg, _T("Messagebox from Toolbar Extension"), MB_OK|MB_ICONEXCLAMATION);
//Reset toolbar button states
SetToolbarButtons(iStatus);
}
return hr;
}
HRESULT CToolBarExtension::SetToolbarButtons(STATUS iVehicleStatus)
{
HRESULT hr = S_OK;
switch (iVehicleStatus)
{
case RUNNING:
m_ipToolbar->SetButtonState(ID_BUTTONSTART, BUTTONPRESSED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONSTART, ENABLED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONPAUSE, BUTTONPRESSED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONPAUSE, ENABLED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONSTOP, BUTTONPRESSED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONSTOP, ENABLED, TRUE);
break;
case PAUSED:
m_ipToolbar->SetButtonState(ID_BUTTONSTART, BUTTONPRESSED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONSTART, ENABLED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONPAUSE, BUTTONPRESSED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONPAUSE, ENABLED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONSTOP, BUTTONPRESSED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONSTOP, ENABLED, TRUE);
break;
case STOPPED:
m_ipToolbar->SetButtonState(ID_BUTTONSTART, BUTTONPRESSED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONSTART, ENABLED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONPAUSE, BUTTONPRESSED, FALSE);
m_ipToolbar->SetButtonState(ID_BUTTONPAUSE, ENABLED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONSTOP, BUTTONPRESSED, TRUE);
m_ipToolbar->SetButtonState(ID_BUTTONSTOP, ENABLED, FALSE);
break;
}
return hr;
}