PATRON.CPP
/*
* PATRON.CPP
* Patron Chapter 21
*
* WinMain which is all we need for the basic application.
*
* Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
*
* Kraig Brockschmidt, Microsoft
* Internet : kraigb@microsoft.com
* Compuserve: >INTERNET:kraigb@microsoft.com
*/
#define INITGUIDS
#include "patron.h"
//CHAPTER21MOD
ULONG g_cObj=0;
ULONG g_cLock=0;
HWND g_hWnd=NULL;
BOOL g_fUser=TRUE;
//End CHAPTER21MOD
/*
* WinMain
*
* Purpose:
* Main entry point of application. Should register the app class
* if a previous instance has not done so and do any other one-time
* initializations.
*/
int PASCAL WinMain (HINSTANCE hInst, HINSTANCE hPrev
, LPSTR pszCmdLine, int nCmdShow)
{
PCPatronFrame pFR;
FRAMEINIT fi;
WPARAM wRet=0;
SETMESSAGEQUEUE;
//Attempt to allocate and initialize the application
pFR=new CPatronFrame(hInst, hPrev, pszCmdLine, nCmdShow);
if (NULL==pFR)
return -1;
fi.idsMin=IDS_FRAMEMIN;
fi.idsMax=IDS_FRAMEMAX;
fi.idsStatMin=IDS_STATMESSAGEMIN;
fi.idsStatMax=IDS_STATMESSAGEMAX;
fi.idStatMenuMin=ID_MENUFILE;
fi.idStatMenuMax=ID_MENUHELP;
fi.iPosWindowMenu=WINDOW_MENU;
fi.cMenus=CMENUS;
fi.x=CW_USEDEFAULT;
fi.y=CW_USEDEFAULT;
fi.cx=CW_USEDEFAULT;
fi.cy=CW_USEDEFAULT;
//If we can initialize pFR, start chugging messages
if (pFR->Init(&fi))
wRet=pFR->MessageLoop();
delete pFR;
return wRet;
}
//CHAPTER21MOD
/*
* ObjectDestroyed
*
* Purpose:
* Function for the Patron Document object to call when it gets
* destroyed. We destroy the main window if the proper conditions
* are met for shutdown.
*/
void ObjectDestroyed(void)
{
g_cObj--;
//No more objects, no locks, no user control, shut the app down.
if (0==g_cObj && 0==g_cLock && IsWindow(g_hWnd) && !g_fUser)
PostMessage(g_hWnd, WM_CLOSE, 0, 0L);
return;
}
//End CHAPTER21MOD
/*
* CPatronFrame::CPatronFrame
* CPatronFrame::~CPatronFrame
*
* Constructor Parameters:
* hInst HINSTANCE from WinMain
* hInstPrev HINSTANCE from WinMain
* pszCmdLine LPSTR from WinMain
* nCmdShow int from WInMain
*/
CPatronFrame::CPatronFrame(HINSTANCE hInst, HINSTANCE hInstPrev
, LPSTR pszCmdLine, int nCmdShow)
: CFrame(hInst, hInstPrev, pszCmdLine, nCmdShow)
{
m_fInitialized=FALSE;
m_pIClassDataTran=NULL;
//CHAPTER21MOD
m_pDocCreated=NULL;
m_fEmbedding=FALSE;
m_dwRegCO=0;
m_pIClassFactory=NULL;
//End CHAPTER21MOD
return;
}
CPatronFrame::~CPatronFrame(void)
{
//CHAPTER21MOD
//Opposite of CoRegisterClassObject, takes class factory ref to 1
if (0L!=m_dwRegCO)
CoRevokeClassObject(m_dwRegCO);
//This should be the last Release, which frees the class factory.
ReleaseInterface(m_pIClassFactory);
//End CHAPTER21MOD
if (NULL!=m_pIClassDataTran)
{
m_pIClassDataTran->LockServer(FALSE);
m_pIClassDataTran->Release();
}
OleFlushClipboard();
if (m_fInitialized)
OleUninitialize();
return;
}
/*
* CPatronFrame::Init
*
* Purpose:
* Call OleInitialize then calling down into the base class
* initialization.
*
* Parameters:
* pFI PFRAMEINIT containing initialization
* parameters.
*
* Return Value:
* BOOL TRUE if initialization succeeded,
* FALSE otherwise.
*/
BOOL CPatronFrame::Init(PFRAMEINIT pFI)
{
HRESULT hr;
CHECKVER_OLE;
if (FAILED(OleInitialize(NULL)))
return FALSE;
m_fInitialized=TRUE;
//Lock the data transfer object factory as an optimization.
hr=CoGetClassObject(CLSID_DataTransferObject
, CLSCTX_INPROC_SERVER, NULL, IID_IClassFactory
, (PPVOID)&m_pIClassDataTran);
if (SUCCEEDED(hr))
m_pIClassDataTran->LockServer(TRUE);
//CHAPTER21MOD
//Check for command line flags
ParseCommandLine();
if (NULL!=m_ppszCmdArgs)
{
if(0==lstrcmpi(m_ppszCmdArgs[0], TEXT("-Embedding"))
|| 0==lstrcmpi(m_ppszCmdArgs[0], TEXT("/Embedding")))
m_fEmbedding=TRUE;
}
g_fUser=!m_fEmbedding;
if (m_fEmbedding)
{
HRESULT hr;
m_pIClassFactory=new CLinkClassFactory(this);
if (NULL==m_pIClassFactory)
return FALSE;
//Since we hold on to this, we should AddRef it.
m_pIClassFactory->AddRef();
hr=CoRegisterClassObject(CLSID_PatronPages, m_pIClassFactory
, CLSCTX_LOCAL_SERVER, REGCLS_SINGLEUSE, &m_dwRegCO);
if (FAILED(hr))
return FALSE;
}
//End CHAPTER21MOD
return CFrame::Init(pFI);
}
/*
* CPatronFrame::CreateCClient
*
* Purpose:
* Constructs a new client specific to the application.
*
* Parameters:
* None
*
* Return Value:
* PCClient Pointer to the new client object.
*/
PCClient CPatronFrame::CreateCClient(void)
{
return (PCClient)(new CPatronClient(m_hInst, this));
}
/*
* CPatronFrame::RegisterAllClasses
*
* Purpose:
* Registers all classes used in this application.
*
* Parameters:
* None
*
* Return Value:
* BOOL TRUE if registration succeeded, FALSE otherwise.
*/
BOOL CPatronFrame::RegisterAllClasses(void)
{
WNDCLASS wc;
//First let the standard frame do its thing
if (!CFrame::RegisterAllClasses())
return FALSE;
//We need double-clicks now and for object activation.
wc.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
wc.hInstance = m_hInst;
wc.cbClsExtra = 0;
wc.lpfnWndProc = PagesWndProc;
wc.cbWndExtra = CBPAGESWNDEXTRA;
wc.hIcon = NULL;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1);
wc.lpszMenuName = NULL;
wc.lpszClassName = SZCLASSPAGES;
if (!RegisterClass(&wc))
return FALSE;
return TRUE;
}
//CHAPTER21MOD
/*
* CPatronFrame::PreShowInit
*
* Purpose:
* Called from Init before intially showing the window. We do
* whatever else we want here, modifying m_nCmdShow as necessary
* which affects ShowWindow in Init.
*
* Parameters:
* None
*
* Return Value:
* BOOL TRUE if this successful, FALSE otherwise.
*/
BOOL CPatronFrame::PreShowInit(void)
{
//Base class does nothing
CFrame::PreShowInit();
//Save the window handle for shutdown if necessary.
g_hWnd=m_hWnd;
//If we're -Embedding, don't show the window initially.
if (m_fEmbedding)
m_nCmdShow=SW_HIDE;
return TRUE;
}
//End CHAPTER21MOD
/*
* CPatronFrame::OnCommand
*
* Purpose:
* WM_COMMAND handler for the Patron frame window that processes
* extra File menu items as well as the Page menu.
*
* Parameters:
* hWnd HWND of the frame window.
* wParam WPARAM of the message.
* lParam LPARAM of the message.
*
* Return Value:
* LRESULT Return value for the message.
*/
LRESULT CPatronFrame::OnCommand(HWND hWnd, WPARAM wParam
, LPARAM lParam)
{
PCPatronDoc pDoc;
COMMANDPARAMS(wID, wCode, hWndMsg);
/*
* Don't bother with anything during first initialization,
* skipping many toolbar notifications.
*/
if (m_fInit)
return 0L;
pDoc=(PCPatronDoc)m_pCL->ActiveDocument();
if (NULL!=pDoc && (IDM_VERBMIN <= wID) && (IDM_VERBMAX >= wID))
{
pDoc->ActivateObject(wID-IDM_VERBMIN);
return 0L;
}
switch (wID)
{
case IDM_FILEPRINT:
pDoc->Print(m_hWnd);
return 0L;
case IDM_FILEPRINTERSETUP:
pDoc->PrinterSetup(m_hWnd, FALSE);
return 0L;
case IDM_EDITPASTESPECIAL:
pDoc->PasteSpecial(m_hWnd);
return 0L;
case IDM_EDITDELETEOBJECT:
pDoc->Delete();
return 0L;
case IDM_EDITINSERTOBJECT:
pDoc->InsertObject(m_hWnd);
return 0L;
case IDM_EDITCONVERT:
pDoc->ConvertObject(m_hWnd);
return 0L;
case IDM_EDITLINKS:
pDoc->EditLinks(m_hWnd);
return 0L;
case IDM_PAGENEWPAGE:
pDoc->NewPage();
break;
case IDM_PAGEDELETEPAGE:
pDoc->DeletePage();
break;
case IDM_PAGENEXTPAGE:
pDoc->NextPage();
break;
case IDM_PAGEPREVIOUSPAGE:
pDoc->PreviousPage();
break;
case IDM_PAGEFIRSTPAGE:
pDoc->FirstPage();
break;
case IDM_PAGELASTPAGE:
pDoc->LastPage();
break;
case IDM_PAGESHOWOBJECTS:
{
BOOL fTemp;
//First get the current state, then toggle it.
fTemp=pDoc->ShowOrQueryObjectTypes(TRUE, FALSE);
pDoc->ShowOrQueryObjectTypes(FALSE, !fTemp);
}
break;
default:
return CFrame::OnCommand(hWnd, wParam, lParam);
}
return 0L;
}
/*
* CPatronFrame::CreateToolbar
*
* Purpose:
* Procedure to create all the necessary toolbar buttons.
*
* Parameters:
* None
*
* Return Value:
* UINT Number of tools added to the bar.
*/
UINT CPatronFrame::CreateToolbar(void)
{
UINT iLast;
UINT uState=GIZMO_NORMAL;
UINT utCmd =GIZMOTYPE_BUTTONCOMMAND;
//Insert the standard ones.
iLast=CFrame::CreateToolbar();
//Remove Undo: we don't use it.
m_pTB->Remove(IDM_EDITUNDO);
/*
* Insert Print File Import in the 5th position and account
* for it in iLast.
*/
m_pTB->Add(utCmd, 4, IDM_FILEPRINT, m_dxB, m_dyB
, NULL, NULL, 6, uState);
iLast++;
m_pTB->Add(GIZMOTYPE_SEPARATOR, iLast++, 0, 6, m_dyB
, NULL, NULL, 0, uState);
//Add New Page, and Delete Page
m_pTB->Add(utCmd, iLast++, IDM_PAGENEWPAGE, m_dxB, m_dyB
, NULL, m_hBmp, 2, uState);
m_pTB->Add(utCmd, iLast++, IDM_PAGEDELETEPAGE, m_dxB, m_dyB
, NULL, m_hBmp, 3, uState);
m_pTB->Add(GIZMOTYPE_SEPARATOR, iLast++, 0, 6, m_dyB
, NULL, NULL, 0, uState);
//First, Prev, Next, Last pages.
m_pTB->Add(utCmd, iLast++, IDM_PAGEFIRSTPAGE, m_dxB, m_dyB
, NULL, m_hBmp, 4, uState);
m_pTB->Add(utCmd, iLast++, IDM_PAGEPREVIOUSPAGE, m_dxB, m_dyB
, NULL, m_hBmp, 5, uState);
m_pTB->Add(utCmd, iLast++, IDM_PAGENEXTPAGE, m_dxB, m_dyB
, NULL, m_hBmp, 6, uState);
m_pTB->Add(utCmd, iLast++, IDM_PAGELASTPAGE, m_dxB, m_dyB
, NULL, m_hBmp, 7, uState);
return iLast;
}
/*
* CPatronFrame::UpdateMenus
*
* Purpose:
* Handles the WM_INITMENU message for the frame window. Depending
* on the existence of an active window, menu items are selectively
* enabled and disabled.
*
* Parameters:
* hMenu HMENU of the menu to intialize
* iMenu UINT position of the menu.
*
* Return Value:
* None
*/
void CPatronFrame::UpdateMenus(HMENU hMenu, UINT iMenu)
{
PCPatronDoc pDoc;
BOOL fOK=FALSE;
BOOL fCallDefault=TRUE;
UINT uTemp;
UINT uTempE;
UINT uTempD;
pDoc=(PCPatronDoc)m_pCL->ActiveDocument();
uTempE=MF_ENABLED | MF_BYCOMMAND;
uTempD=MF_DISABLED | MF_GRAYED | MF_BYCOMMAND;
uTemp=((NULL!=pDoc) ? uTempE : uTempD);
if (m_phMenu[0]==hMenu)
{
EnableMenuItem(hMenu, IDM_FILEPRINT, uTemp);
if (NULL!=pDoc)
fOK=pDoc->FQueryPrinterSetup();
EnableMenuItem(hMenu, IDM_FILEPRINTERSETUP
, (fOK) ? uTempE : uTempD);
}
if (m_phMenu[1]==hMenu)
{
if (NULL!=pDoc)
fOK=pDoc->FQueryPaste();
EnableMenuItem(hMenu, IDM_EDITPASTE
, (fOK) ? uTempE : uTempD);
EnableMenuItem(hMenu, IDM_EDITPASTESPECIAL
, (fOK) ? uTempE : uTempD);
//Cut, Copy, Delete depends on there being a selection.
if (NULL!=pDoc)
fOK=pDoc->FQueryObjectSelected(hMenu);
else
fOK=FALSE;
EnableMenuItem(hMenu, IDM_EDITCUT, (fOK) ? uTempE : uTempD);
EnableMenuItem(hMenu, IDM_EDITCOPY
, (fOK) ? uTempE : uTempD);
EnableMenuItem(hMenu, IDM_EDITDELETEOBJECT
, (fOK) ? uTempE : uTempD);
EnableMenuItem(hMenu, IDM_EDITINSERTOBJECT, uTemp);
if (NULL!=pDoc)
fOK=pDoc->FQueryEnableEditLinks();
else
fOK=FALSE;
EnableMenuItem(hMenu, IDM_EDITLINKS
, (fOK) ? uTempE : uTempD);
//We did the whole menu...
fCallDefault=FALSE;
}
//Page menu
if (m_phMenu[2]==hMenu)
{
EnableMenuItem(hMenu, IDM_PAGENEWPAGE, uTemp);
EnableMenuItem(hMenu, IDM_PAGEDELETEPAGE, uTemp);
EnableMenuItem(hMenu, IDM_PAGENEXTPAGE, uTemp);
EnableMenuItem(hMenu, IDM_PAGEPREVIOUSPAGE, uTemp);
EnableMenuItem(hMenu, IDM_PAGEFIRSTPAGE, uTemp);
EnableMenuItem(hMenu, IDM_PAGELASTPAGE, uTemp);
//Check the Show Objects command or not.
if (NULL!=pDoc)
fOK=pDoc->ShowOrQueryObjectTypes(TRUE, FALSE);
else
fOK=FALSE;
CheckMenuItem(hMenu, IDM_PAGESHOWOBJECTS, MF_BYCOMMAND
| ((fOK) ? MF_CHECKED : MF_UNCHECKED));
EnableMenuItem(hMenu, IDM_PAGESHOWOBJECTS, uTemp);
}
if (fCallDefault)
CFrame::UpdateMenus(hMenu, iMenu);
return;
}
/*
* CPatronFrame::UpdateToolbar
*
* Purpose:
* Enables and disables tools depending on whether we have
* a document or not.
*
* Parameters:
* None
*
* Return Value:
* None
*/
void CPatronFrame::UpdateToolbar(void)
{
PCDocument pDoc;
BOOL fEnable;
//Let the default hack on its tools.
CFrame::UpdateToolbar();
pDoc=m_pCL->ActiveDocument();
fEnable=(NULL!=pDoc);
//No document, disable just about everything
m_pTB->Enable(IDM_FILEPRINT, fEnable);
m_pTB->Enable(IDM_FILEPRINTERSETUP, fEnable);
m_pTB->Enable(IDM_PAGENEWPAGE, fEnable);
m_pTB->Enable(IDM_PAGEDELETEPAGE, fEnable);
m_pTB->Enable(IDM_PAGEFIRSTPAGE, fEnable);
m_pTB->Enable(IDM_PAGEPREVIOUSPAGE, fEnable);
m_pTB->Enable(IDM_PAGENEXTPAGE, fEnable);
m_pTB->Enable(IDM_PAGELASTPAGE, fEnable);
return;
}
/*
* CPatronFrame::FMessageHook
*
* Purpose:
* Override of CFrame::FMessageHook so we can specifically trap
* WM_MENUSELECT messages for the Object verb menu to provide some
* meaningful information on the status strip.
*
* Parameters:
* <WndProc Parameters>
* pLRes LRESULT * in which to store the return value
* for the message.
*
* Return Value:
* BOOL TRUE to prevent further processing,
* FALSE otherwise.
*/
BOOL CPatronFrame::FMessageHook(HWND hWnd, UINT iMsg, WPARAM wParam
, LPARAM lParam, LRESULT *pLRes)
{
BOOL fRet=FALSE;
*pLRes=0;
MENUSELECTPARAMS(wItem, wMenuFlags, hMenu);
//CHAPTER21MOD
/*
* When closing, make sure any document create from the
* class factory is saved since the object in it might
* have been changed. We want to save without showing
* the user any message or asking if the user wants to save.
*/
if (WM_CLOSE==iMsg)
{
if (NULL!=m_pDocCreated)
{
if (m_pDocCreated->FDirtyGet())
{
CHourglass wait;
m_pDocCreated->Save(0, NULL);
}
}
return FALSE;
}
//End CHAPTER21MOD
//If this is the wrong message, nothing to do.
if (WM_MENUSELECT!=iMsg)
return FALSE;
//This happens when there's no menu selection.
if (-1==wMenuFlags)
return FALSE;
if (MF_POPUP & wMenuFlags)
{
/*
* If this is the cascade verb menu itself, display the same
* message. m_phMenu[1] contains the current edit menu
* handle.
*/
if (0!=wItem)
{
fRet=((HMENU)wItem==GetSubMenu(m_phMenu[1]
, MENUPOS_OBJECT));
}
}
else
{
/*
* If the ID is in the verb range, use
* IDS_ITEMMESSAGEEDITOBJECT message
*/
fRet=(IDM_VERBMIN <= wItem && IDM_VERBMAX >= wItem);
}
if (fRet)
m_pSL->MessageDisplay(IDM_EDITOBJECT);
return fRet;
}