163 lines
4.8 KiB
C
163 lines
4.8 KiB
C
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/*--------------------------------------------------------------------------*
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*
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* Microsoft Windows
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* Copyright (C) Microsoft Corporation, 1992 - 1999
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*
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* File: msgview.h
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*
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* Contents: Interface file for CMessageView
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*
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* History: 28-Apr-99 jeffro Created
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*
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*--------------------------------------------------------------------------*/
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#ifndef __MESSAGEVIEW_H_
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#define __MESSAGEVIEW_H_
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#include "tstring.h"
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/////////////////////////////////////////////////////////////////////////////
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// CMessageView
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class ATL_NO_VTABLE CMessageView :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CMessageView, &CLSID_MessageView>,
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public CComControl<CMessageView>,
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public IMessageView,
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public IPersistStreamInitImpl<CMessageView>,
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public IOleControlImpl<CMessageView>,
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public IOleObjectImpl<CMessageView>,
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public IOleInPlaceActiveObjectImpl<CMessageView>,
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public IViewObjectExImpl<CMessageView>,
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public IOleInPlaceObjectWindowlessImpl<CMessageView>
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{
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public:
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CMessageView();
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~CMessageView();
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DECLARE_NOT_AGGREGATABLE(CMessageView)
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DECLARE_MMC_OBJECT_REGISTRATION (
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g_szMmcndmgrDll, // implementing DLL
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CLSID_MessageView, // CLSID
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_T("MessageView Class"), // class name
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_T("MessageView.MessageView.1"), // ProgID
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_T("MessageView.MessageView")) // version-independent ProgID
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BEGIN_COM_MAP(CMessageView)
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COM_INTERFACE_ENTRY(IMessageView)
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COM_INTERFACE_ENTRY_IMPL(IViewObjectEx)
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COM_INTERFACE_ENTRY_IMPL_IID(IID_IViewObject2, IViewObjectEx)
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COM_INTERFACE_ENTRY_IMPL_IID(IID_IViewObject, IViewObjectEx)
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COM_INTERFACE_ENTRY_IMPL(IOleInPlaceObjectWindowless)
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COM_INTERFACE_ENTRY_IMPL_IID(IID_IOleInPlaceObject, IOleInPlaceObjectWindowless)
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COM_INTERFACE_ENTRY_IMPL_IID(IID_IOleWindow, IOleInPlaceObjectWindowless)
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COM_INTERFACE_ENTRY_IMPL(IOleInPlaceActiveObject)
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COM_INTERFACE_ENTRY_IMPL(IOleControl)
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COM_INTERFACE_ENTRY_IMPL(IOleObject)
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COM_INTERFACE_ENTRY_IMPL(IPersistStreamInit)
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END_COM_MAP()
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BEGIN_PROPERTY_MAP(CMessageView)
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// Example entries
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// PROP_ENTRY("Property Description", dispid, clsid)
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// PROP_PAGE(CLSID_StockColorPage)
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END_PROPERTY_MAP()
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BEGIN_MSG_MAP(CMessageView)
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MESSAGE_HANDLER (WM_CREATE, OnCreate)
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MESSAGE_HANDLER (WM_DESTROY, OnDestroy)
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MESSAGE_HANDLER (WM_SIZE, OnSize)
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MESSAGE_HANDLER (WM_SETTINGCHANGE, OnSettingChange)
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MESSAGE_HANDLER (WM_KEYDOWN, OnKeyDown)
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MESSAGE_HANDLER (WM_VSCROLL, OnVScroll)
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MESSAGE_HANDLER (WM_MOUSEWHEEL, OnMouseWheel)
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CHAIN_MSG_MAP (CComControl<CMessageView>)
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END_MSG_MAP()
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#define MESSAGE_HANDLER_FUNC(func) LRESULT (func)(UINT msg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
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MESSAGE_HANDLER_FUNC (OnCreate);
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MESSAGE_HANDLER_FUNC (OnDestroy);
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MESSAGE_HANDLER_FUNC (OnSize);
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MESSAGE_HANDLER_FUNC (OnSettingChange);
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MESSAGE_HANDLER_FUNC (OnKeyDown);
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MESSAGE_HANDLER_FUNC (OnVScroll);
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MESSAGE_HANDLER_FUNC (OnMouseWheel);
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DECLARE_WND_CLASS_EX(NULL, CS_HREDRAW, COLOR_WINDOW);
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// IViewObjectEx
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STDMETHOD(GetViewStatus)(DWORD* pdwStatus)
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{
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ATLTRACE(_T("IViewObjectExImpl::GetViewStatus\n"));
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*pdwStatus = VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE;
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return S_OK;
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}
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// IMessageView
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STDMETHOD(SetTitleText)(LPCOLESTR pszTitleText);
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STDMETHOD(SetBodyText)(LPCOLESTR pszBodyText);
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STDMETHOD(SetIcon)(IconIdentifier id);
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STDMETHOD(Clear)();
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public:
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HRESULT OnDraw(ATL_DRAWINFO& di);
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private:
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void RecalcLayout();
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void RecalcIconLayout();
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void RecalcTitleLayout();
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void RecalcBodyLayout();
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void UpdateSystemMetrics();
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struct TextElement;
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void DrawTextElement (HDC hdc, TextElement& te, DWORD dwFlags = 0);
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int CalcTextElementHeight (const TextElement& te, int cx);
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HRESULT SetTextElement (TextElement& te, LPCOLESTR pszNewText);
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void CreateFonts ();
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void DeleteFonts ();
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void VertScroll (int nScrollCmd, int nScrollPos, int nRepeat);
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void ScrollToPosition (int yScroll);
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void UpdateScrollSizes ();
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int GetOverallHeight() const
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{ return (m_TextElement[Body].rect.bottom + m_sizeMargin.cy); }
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private:
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enum { Title, Body, ElementCount };
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struct TextElement
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{
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TextElement() : rect (0,0,0,0) {}
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tstring str;
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WTL::CFont font;
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WTL::CRect rect;
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};
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TextElement m_TextElement[ElementCount];
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HICON m_hIcon;
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WTL::CRect m_rectIcon;
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// for scrolling
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int m_yScroll;
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int m_yScrollMax;
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int m_yScrollMin;
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int m_cyPage;
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int m_cyLine;
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int m_nAccumulatedScrollDelta; // for WM_MOUSEWHEEL processing
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WTL::CSize m_sizeWindow;
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WTL::CSize m_sizeIcon;
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WTL::CSize m_sizeMargin;
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};
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#endif //__MESSAGEVIEW_H_
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