textdisplayitem.hpp

一个WinCE6。0下的IP phone的源代码

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this sample source code is subject to the terms of the Microsoft
// license agreement under which you licensed this sample source code. If
// you did not accept the terms of the license agreement, you are not
// authorized to use this sample source code. For the terms of the license,
// please see the license agreement between you and Microsoft or, if applicable,
// see the LICENSE.RTF on your install media or the root of your tools installation.
// THE SAMPLE SOURCE CODE IS PROVIDED "AS IS", WITH NO WARRANTIES.
//
#pragma once

#ifndef __TEXTDISPLAYITEM_HPP__
#define __TEXTDISPLAYITEM_HPP__

#include "DisplayItem.hpp"
#include "string.hxx"

/*------------------------------------------------------------------------------
    TextDisplayItem_t

    Implementation of a simple, single line display item
------------------------------------------------------------------------------*/
class TextDisplayItem_t :
    public CVoIPDisplayItem,
    public IVoIPTextDisplayItem
{
public:
    //Contructor/Destructor
    TextDisplayItem_t();
    ~TextDisplayItem_t();

public:
    //IVoIPDisplayItem
    HRESULT
    QueryInterface(
        REFIID riid, 
        __deref_out void** ppvObject
        );
    
    HRESULT
    Draw(
        HDC hdc,
        __in const RECT* pRectangle,
        BOOL IsSelected,
        BOOL IsTopItem = FALSE
        );

    HRESULT
    SetText(
        __in const WCHAR* pText
        );

    HRESULT
    GetText(
        __out_ecount(cchBuffer) WCHAR* pBuffer,
        int cchBuffer
        );

    HRESULT
    GetSubItemText(
        int Index,
        __out_ecount(cchBuffer) WCHAR* pBuffer,
        UINT cchBuffer
        );

    BOOL
    GetHeight(
        __out UINT* pHeight
        );

    BOOL
    NeedsToolTip(
        __in RECT* pRectangle
        );

    //IVoIPTextDisplayItem
    HRESULT
    SetHighlightIndices(
        int Start,
        int End
        );

    HRESULT
    SetCookie(
        UINT cookie
        )
    {
        m_Cookie = cookie;
        return S_OK;
    }

    UINT
    GetCookie(
        void
        )
    {
        return m_Cookie;
    }

    HRESULT
    SetComPtr(
        __in_opt IUnknown* pUnk
        );
    
    HRESULT
    GetComPtr(
        __deref_out_opt IUnknown** ppUnk
        );

private:
    //The string to display
    ce::wstring     m_Text;
    int             m_HighlightStart;
    int             m_HighlightEnd;
    UINT            m_Cookie;    
    IUnknown*       m_pUnk;
};

#endif //!defined __TEXTDISPLAYITEM_HPP__