633 lines
17 KiB
C++
633 lines
17 KiB
C++
//**********************************************************************
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// File name: SITE.CPP
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//
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// Implementation file for CSimpleSite
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//
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// Functions:
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//
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// See SITE.H for class definition
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//
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// Copyright (c) 1992 - 1993 Microsoft Corporation. All rights reserved.
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//**********************************************************************
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#include "pre.h"
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#include "iocs.h"
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#include "ias.h"
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#include "app.h"
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#include "site.h"
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#include "doc.h"
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//**********************************************************************
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//
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// CSimpleSite::Create
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//
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// Purpose:
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//
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// Creation routine for CSimpleSite
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//
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// Parameters:
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//
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// CSimpleDoc FAR *lpDoc - Pointer to CSimpleDoc
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//
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// Return Value:
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//
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// None
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//
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// Function Calls:
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// Function Location
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//
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// CSimpleSite::CSimpleSite SITE.CPP
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// CSimpleSite::~CSimpleSite SITE.CPP
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// CSimpleSite::AddRef SITE.CPP
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// IStorage::CreateStorage OLE API
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// assert C Runtime
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//
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//
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//********************************************************************
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CSimpleSite FAR * CSimpleSite::Create(CSimpleDoc FAR *lpDoc)
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{
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CSimpleSite FAR * lpTemp = new CSimpleSite(lpDoc);
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if (!lpTemp)
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return NULL;
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// create a sub-storage for the object
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HRESULT hErr = lpDoc->m_lpStorage->CreateStorage( OLESTR("Object"),
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STGM_READWRITE | STGM_TRANSACTED | STGM_SHARE_EXCLUSIVE,
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0,
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0,
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&lpTemp->m_lpObjStorage);
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assert(hErr == NOERROR);
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if (hErr != NOERROR)
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{
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delete lpTemp;
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return NULL;
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}
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// we will add one ref count on our Site. later when we want to destroy
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// the Site object we will release this ref count. when the Site's ref
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// count goes to 0, it will be deleted.
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lpTemp->AddRef();
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return lpTemp;
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}
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//**********************************************************************
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//
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// CSimpleSite::CSimpleSite
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//
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// Purpose:
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//
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// Constructor for CSimpleSite
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//
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// Parameters:
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//
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// CSimpleDoc FAR *lpDoc - Pointer to CSimpleDoc
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//
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// Return Value:
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//
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// None
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//
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// Function Calls:
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// Function Location
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//
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//
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//********************************************************************
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#pragma warning(disable : 4355) // turn off this warning. This warning
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// tells us that we are passing this in
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// an initializer, before "this" is through
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// initializing. This is ok, because
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// we just store the ptr in the other
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// constructors
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CSimpleSite::CSimpleSite (CSimpleDoc FAR *lpDoc) : m_OleClientSite(this),
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m_AdviseSink(this)
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#pragma warning (default : 4355) // Turn the warning back on
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{
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// remember the pointer to the doc
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m_lpDoc = lpDoc;
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m_sizel.cx = 0;
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m_sizel.cy = 0;
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// clear the reference count
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m_nCount = 0;
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m_dwDrawAspect = DVASPECT_CONTENT;
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m_lpOleObject = NULL;
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m_fObjectOpen = FALSE;
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}
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//**********************************************************************
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//
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// CSimpleSite::~CSimpleSite
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//
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// Purpose:
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//
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// Destructor for CSimpleSite
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//
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// Parameters:
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//
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// None
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//
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// Return Value:
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//
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// None
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//
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// Function Calls:
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// Function Location
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//
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// TestDebugOut Windows API
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// IOleObject::Release Object
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// IStorage::Release OLE API
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//
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//
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//********************************************************************
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CSimpleSite::~CSimpleSite ()
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{
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TestDebugOut ("In CSimpleSite's Destructor \r\n");
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if (m_lpOleObject)
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m_lpOleObject->Release();
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if (m_lpObjStorage)
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m_lpObjStorage->Release();
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}
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//**********************************************************************
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//
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// CSimpleSite::CloseOleObject
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//
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// Purpose:
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//
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// Call IOleObject::Close on the object of the CSimpleSite
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//
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// Parameters:
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//
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// None
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//
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// Return Value:
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//
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// None
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//
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// Function Calls:
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// Function Location
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//
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// TestDebugOut Windows API
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// IOleObject::Close Object
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//
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//
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//********************************************************************
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void CSimpleSite::CloseOleObject (void)
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{
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LPVIEWOBJECT lpViewObject = NULL;
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TestDebugOut ("In CSimpleSite::CloseOleObject \r\n");
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if (m_lpOleObject)
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{
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m_lpOleObject->Close(OLECLOSE_NOSAVE);
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}
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}
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//**********************************************************************
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//
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// CSimpleSite::UnloadOleObject
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//
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// Purpose:
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//
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// Close and release all pointers to the object of the CSimpleSite
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//
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// Parameters:
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//
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// None
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//
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// Return Value:
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//
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// None
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//
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// Function Calls:
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// Function Location
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//
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// TestDebugOut Windows API
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// CSimpleSite::CloseOleObject SITE.CPP
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// IOleObject::QueryInterface Object
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// IViewObject::SetAdvise Object
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// IViewObject::Release Object
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// IOleObject::Release Object
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//
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//
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//********************************************************************
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void CSimpleSite::UnloadOleObject (void)
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{
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TestDebugOut ("In CSimpleSite::UnloadOleObject \r\n");
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if (m_lpOleObject)
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{
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LPVIEWOBJECT lpViewObject;
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CloseOleObject(); // ensure object is closed; NOP if already closed
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m_lpOleObject->QueryInterface(IID_IViewObject,
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(LPVOID FAR *)&lpViewObject);
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if (lpViewObject)
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{
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// Remove the view advise
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lpViewObject->SetAdvise(m_dwDrawAspect, 0, NULL);
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lpViewObject->Release();
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}
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m_lpOleObject->Release();
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m_lpOleObject = NULL;
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}
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}
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//**********************************************************************
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//
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// CSimpleSite::QueryInterface
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//
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// Purpose:
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//
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// Used for interface negotiation of the container Site.
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//
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// Parameters:
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//
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// REFIID riid - A reference to the interface that is
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// being queried.
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//
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// LPVOID FAR* ppvObj - An out parameter to return a pointer to
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// the interface.
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//
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// Return Value:
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//
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// S_OK - The interface is supported.
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// S_FALSE - The interface is not supported
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//
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// Function Calls:
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// Function Location
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//
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// TestDebugOut Windows API
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// IsEqualIID OLE API
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// ResultFromScode OLE API
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// CSimpleSite::AddRef OBJ.CPP
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// COleClientSite::AddRef IOCS.CPP
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// CAdviseSink::AddRef IAS.CPP
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//
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//
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//********************************************************************
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STDMETHODIMP CSimpleSite::QueryInterface(REFIID riid, LPVOID FAR* ppvObj)
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{
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TestDebugOut("In CSimpleSite::QueryInterface\r\n");
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*ppvObj = NULL; // must set out pointer parameters to NULL
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if ( IsEqualIID(riid, IID_IUnknown))
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{
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AddRef();
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*ppvObj = this;
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return ResultFromScode(S_OK);
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}
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if ( IsEqualIID(riid, IID_IOleClientSite))
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{
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m_OleClientSite.AddRef();
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*ppvObj = &m_OleClientSite;
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return ResultFromScode(S_OK);
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}
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if ( IsEqualIID(riid, IID_IAdviseSink))
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{
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m_AdviseSink.AddRef();
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*ppvObj = &m_AdviseSink;
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return ResultFromScode(S_OK);
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}
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// Not a supported interface
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return ResultFromScode(E_NOINTERFACE);
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}
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//**********************************************************************
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//
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// CSimpleSite::AddRef
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//
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// Purpose:
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//
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// Increments the reference count of the container Site.
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//
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// Parameters:
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//
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// None
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//
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// Return Value:
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//
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// ULONG - The new reference count of the site.
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//
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// Function Calls:
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// Function Location
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//
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// TestDebugOut Windows API
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//
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//
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//********************************************************************
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STDMETHODIMP_(ULONG) CSimpleSite::AddRef()
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{
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TestDebugOut("In CSimpleSite::AddRef\r\n");
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return ++m_nCount;
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}
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//**********************************************************************
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//
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// CSimpleSite::Release
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//
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// Purpose:
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//
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// Decrements the reference count of the container Site
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//
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// Parameters:
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//
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// None
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//
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// Return Value:
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//
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// ULONG - The new reference count of the Site.
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//
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// Function Calls:
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// Function Location
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//
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// TestDebugOut Windows API
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//
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//
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//********************************************************************
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STDMETHODIMP_(ULONG) CSimpleSite::Release()
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{
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TestDebugOut("In CSimpleSite::Release\r\n");
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if (--m_nCount == 0)
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{
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delete this;
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return 0;
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}
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return m_nCount;
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}
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//**********************************************************************
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//
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// CSimpleSite::InitObject
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//
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// Purpose:
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//
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// Used to initialize a newly create object (can't be done in the
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// constructor).
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//
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// Parameters:
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//
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// BOOL fCreateNew - TRUE if insert NEW object
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// FALSE if create object FROM FILE
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//
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// Return Value:
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//
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// None
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//
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// Function Calls:
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// Function Location
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//
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// IOleObject::SetHostNames Object
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// IOleObject::QueryInterface Object
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// IViewObject2::GetExtent Object
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// IOleObject::DoVerb Object
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// IViewObject2::SetAdvise Object
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// IViewObject2::Release Object
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// GetClientRect Windows API
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// OleSetContainedObject OLE API
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//
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//
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//********************************************************************
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HRESULT CSimpleSite::InitObject(BOOL fCreateNew)
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{
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LPVIEWOBJECT2 lpViewObject2;
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RECT rect;
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HRESULT hRes;
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// Set a View Advise
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hRes = m_lpOleObject->QueryInterface(IID_IViewObject2,
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(LPVOID FAR *)&lpViewObject2);
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if (hRes == ResultFromScode(S_OK))
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{
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hRes = lpViewObject2->SetAdvise(m_dwDrawAspect, ADVF_PRIMEFIRST,
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&m_AdviseSink);
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if( FAILED(hRes))
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{
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goto errRtn;
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}
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// get the initial size of the object
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hRes = lpViewObject2->GetExtent(m_dwDrawAspect, -1 /*lindex*/, NULL /*ptd*/,
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&m_sizel);
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//
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// Is OK if the object is actually blank
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//
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if( FAILED(hRes) && (hRes != OLE_E_BLANK) )
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{
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goto errRtn;
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}
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lpViewObject2->Release();
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}
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GetObjRect(&rect); // get the rectangle of the object in pixels
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// give the object the name of the container app/document
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hRes = m_lpOleObject->SetHostNames(OLESTR("Simple Application"),
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OLESTR("Simple OLE 2.0 Drag/Drop Container"));
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if( FAILED(hRes) )
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{
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goto errRtn;
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}
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// inform object handler/DLL object that it is used in the embedding
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// container's context
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if (OleSetContainedObject(m_lpOleObject, TRUE) != ResultFromScode(S_OK))
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{
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TestDebugOut("Fail in OleSetContainedObject\n");
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}
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if (fCreateNew)
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{
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// force new object to save to guarantee valid object in our storage.
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// OLE 1.0 objects may close w/o saving. this is NOT necessary if the
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// object is created FROM FILE; its data in storage is already valid.
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m_OleClientSite.SaveObject();
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// we only want to DoVerb(SHOW) if this is an InsertNew object.
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// we should NOT DoVerb(SHOW) if the object is created FromFile.
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hRes = m_lpOleObject->DoVerb(
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OLEIVERB_SHOW,
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NULL,
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&m_OleClientSite,
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-1,
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m_lpDoc->m_hDocWnd,
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&rect);
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}
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errRtn:
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return hRes;
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}
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//**********************************************************************
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//
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// CSimpleSite::PaintObj
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//
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// Purpose:
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//
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// Paints the object
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//
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// Parameters:
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//
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// HDC hDC - Device context of the document window
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//
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// Return Value:
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// None
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//
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// Function Calls:
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// Function Location
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//
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// IOleObject::QueryInterface Object
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// IViewObject::GetColorSet Object
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// IViewObject::Release Object
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// CreateHatchBrush Windows API
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// SelectObject Windows API
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// SetROP2 Windows API
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// Rectangle Windows API
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// DeleteObject Windows API
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// CreatePalette Windows API
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// SelectPalette Windows API
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// RealizePalette Windows API
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// OleStdFree OUTLUI Function
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// OleDraw OLE API
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// CSimpleSite::GetObjRect SITE.CPP
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//
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//
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//********************************************************************
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void CSimpleSite::PaintObj(HDC hDC)
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{
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RECT rect;
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// need to check to make sure there is a valid object
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// available. This is needed if there is a paint msg
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// between the time that CSimpleSite is instantiated
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// and OleUIInsertObject returns.
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if (!m_lpOleObject)
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return;
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// convert it to pixels
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GetObjRect(&rect);
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LPLOGPALETTE pColorSet = NULL;
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LPVIEWOBJECT lpView = NULL;
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// get a pointer to IViewObject
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m_lpOleObject->QueryInterface(IID_IViewObject,(LPVOID FAR *) &lpView);
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// if the QI succeeds, get the LOGPALETTE for the object
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if (lpView)
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lpView->GetColorSet(m_dwDrawAspect, -1, NULL, NULL, NULL, &pColorSet);
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HPALETTE hPal=NULL;
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HPALETTE hOldPal=NULL;
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// if a LOGPALETTE was returned (not guarateed), create the palette and
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// realize it. NOTE: A smarter application would want to get the LOGPALETTE
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// for each of its visible objects, and try to create a palette that
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// satisfies all of the visible objects. ALSO: OleStdFree() is use to
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// free the returned LOGPALETTE.
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if ((pColorSet))
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{
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hPal = CreatePalette((const LPLOGPALETTE) pColorSet);
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hOldPal = SelectPalette(hDC, hPal, FALSE);
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RealizePalette(hDC);
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OleStdFree(pColorSet);
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}
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// draw the object
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HRESULT hRes;
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hRes = OleDraw(m_lpOleObject, m_dwDrawAspect, hDC, &rect);
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if ((hRes != ResultFromScode(S_OK)) &&
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(hRes != ResultFromScode(OLE_E_BLANK)) &&
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(hRes != ResultFromScode(DV_E_NOIVIEWOBJECT)))
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{
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TestDebugOut("Fail in OleDraw\n");
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}
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// if the object is open, draw a hatch rect.
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if (m_fObjectOpen)
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{
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HBRUSH hBrush = CreateHatchBrush ( HS_BDIAGONAL, RGB(0,0,0) );
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HBRUSH hOldBrush = (HBRUSH) SelectObject (hDC, hBrush);
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SetROP2(hDC, R2_MASKPEN);
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Rectangle (hDC, rect.left, rect.top, rect.right, rect.bottom);
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SelectObject(hDC, hOldBrush);
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DeleteObject(hBrush);
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}
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// if we created a palette, restore the old one, and destroy
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// the object.
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if (hPal)
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{
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SelectPalette(hDC,hOldPal,FALSE);
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DeleteObject(hPal);
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}
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// if a view pointer was successfully returned, it needs to be released.
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if (lpView)
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lpView->Release();
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}
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//**********************************************************************
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//
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// CSimpleSite::GetObjRect
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//
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// Purpose:
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//
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// Retrieves the rect of the object in pixels
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//
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// Parameters:
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//
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// LPRECT lpRect - Rect structure filled with object's rect in pixels
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//
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// Return Value:
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// None
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//
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// Function Calls:
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// Function Location
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//
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// XformWidthInHimetricToPixels OLE2UI Function
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// XformHeightInHimetricToPixels OLE2UI Function
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//
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//
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//********************************************************************
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void CSimpleSite::GetObjRect(LPRECT lpRect)
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{
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// convert it to pixels
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lpRect->left = lpRect->top = 0;
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lpRect->right = XformWidthInHimetricToPixels(NULL,(int)m_sizel.cx);
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lpRect->bottom = XformHeightInHimetricToPixels(NULL,(int)m_sizel.cy);
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}
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