MFC上下浮动与渐入渐出消息提示框实现

类似QQ与360软件，消息提示有两种。上下浮动、渐入渐出。

1、上下浮动提示框实现

机制，定时器响应上下浮动消息。

主要API：MoveWindow。

源码如下UpDownTipDlg.h、UpDownTipDlg.cpp。

UpDownTipDlg.h

/*
*@brief 上下浮动提示框
*@date 2012-8-9
*/
#pragma once


// CUpDownTipDlg dialog

class CUpDownTipDlg : public CDialog
{
    DECLARE_DYNAMIC(CUpDownTipDlg)

public:
    CUpDownTipDlg(CWnd* pParent = NULL);   // standard constructor
    virtual ~CUpDownTipDlg();

    // Dialog Data
    enum { IDD = IDD_MCMSG_DLG };

    void ShowMsgWindow(CWnd* pParent, const CString& strTipInfo);

protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
    virtual BOOL OnInitDialog();
    //响应关闭消息，删除对象
    virtual void OnCancel();
    virtual void PostNcDestroy();
    afx_msg void OnTimer(UINT_PTR nIDEvent);
    afx_msg void OnBnClickedOk();
    afx_msg void OnBnClickedCancel();

    DECLARE_MESSAGE_MAP()

private:
    void InitDlgPosition();

private:
    CString m_strTipInfo;
};

UpDownTipDlg.cpp

// MCMsgTipDlg.cpp : implementation file
//

#include "stdafx.h"
#include "mcmsgtip_demo.h"
#include "UpDownTipDlg.h"

const UINT_PTR POP_WINDOW = 1;
const UINT_PTR DISPLAY_DELAY = 2;
const UINT_PTR CLOSE_WINDOW = 3;

const UINT POP_ELAPSE = 1;
const UINT DELAY_ELAPSE = 5000;
const UINT CLOSE_ELAPSE = 1;

//上下浮动跨度
const UINT FLOAT_SPAN = 2;

// CUpDownTipDlg dialog

IMPLEMENT_DYNAMIC(CUpDownTipDlg, CDialog)

CUpDownTipDlg::CUpDownTipDlg(CWnd* pParent /*=NULL*/)
: CDialog(CUpDownTipDlg::IDD, pParent)
, m_strTipInfo(_T(""))
{

}

CUpDownTipDlg::~CUpDownTipDlg()
{
}

void CUpDownTipDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
}


BEGIN_MESSAGE_MAP(CUpDownTipDlg, CDialog)
    ON_WM_TIMER()
    ON_BN_CLICKED(IDOK, &CUpDownTipDlg::OnBnClickedOk)
    ON_BN_CLICKED(IDCANCEL, &CUpDownTipDlg::OnBnClickedCancel)
END_MESSAGE_MAP()


// CUpDownTipDlg message handlers
void CUpDownTipDlg::ShowMsgWindow(CWnd* pParent, const CString& strTipInfo)
{
    m_strTipInfo = strTipInfo;
    Create(IDD, pParent);
    ShowWindow(SW_SHOW);
}

BOOL CUpDownTipDlg::OnInitDialog()
{
    CDialog::OnInitDialog();

    // TODO:  Add extra initialization here
    SetDlgItemText(IDC_TIP_INFO, m_strTipInfo);

    InitDlgPosition();

    //消息弹出效果
    SetTimer(POP_WINDOW, POP_ELAPSE, NULL);

    return TRUE;
}

void CUpDownTipDlg::InitDlgPosition()
{
    CRect rectInit;
    GetWindowRect(&rectInit);

    RECT rect;
    SystemParametersInfo(SPI_GETWORKAREA, 0, &rect, 0);
    int cy = rect.bottom-rect.top;
    int cx = rect.right-rect.left;

    int nx = rect.right - rectInit.Width();
    int ny = cy;

    rectInit.MoveToXY(nx, ny);

    MoveWindow(rectInit);
}

void CUpDownTipDlg::OnTimer(UINT_PTR nIDEvent)
{
    RECT rect;
    SystemParametersInfo(SPI_GETWORKAREA,0,&rect,0);
    int cy = rect.bottom-rect.top;
    int cx = rect.right-rect.left;

    CRect rectTip;
    GetWindowRect(&rectTip);

    switch (nIDEvent)
    {
    case POP_WINDOW:
        {
            if (rectTip.bottom > cy)
            {
                rectTip.MoveToY(rectTip.top - FLOAT_SPAN);

                MoveWindow(rectTip);
            }
            else
            {
                KillTimer(POP_WINDOW);
                SetTimer(DISPLAY_DELAY, DELAY_ELAPSE, NULL);
            }

            break;
        }
    case DISPLAY_DELAY:
        {
            KillTimer(DISPLAY_DELAY);
            SetTimer(CLOSE_WINDOW, CLOSE_ELAPSE, NULL);

            break;
        }
    case CLOSE_WINDOW:
        {
            if (rectTip.top <= cy)
            {
                rectTip.MoveToY(rectTip.top + FLOAT_SPAN);

                MoveWindow(rectTip);
            }
            else
            {
                KillTimer(CLOSE_WINDOW);
                PostMessage(WM_CLOSE);
            }

            break;
        }
    }

    CDialog::OnTimer(nIDEvent);
}

void CUpDownTipDlg::OnCancel()
{
    DestroyWindow();
}

void CUpDownTipDlg::PostNcDestroy()
{
    CDialog::PostNcDestroy();

    //窗口销毁时，删除该对象
    delete this;
}

void CUpDownTipDlg::OnBnClickedOk()
{
    OnOK();

    ::MessageBox(AfxGetMainWnd()->GetSafeHwnd(), _T("提示框的反馈-是"), _T("提示"), MB_OK);
}

void CUpDownTipDlg::OnBnClickedCancel()
{
    OnCancel();
}

2、渐入渐出提示框实现

机制，定时器响应淡入淡出消息。

主要API：AnimateWindow。

源码如下InOutTipDlg.h、InOutTipDlg.cpp。

InOutTipDlg.h

/*
*@brief 淡入淡出提示框
*@date 2012-8-9
*/
#pragma once

// CInOutTipDlg dialog
class CInOutTipDlg : public CDialog
{
    DECLARE_DYNAMIC(CInOutTipDlg)

public:
    CInOutTipDlg(CWnd* pParent = NULL);   // standard constructor
    virtual ~CInOutTipDlg();

    // Dialog Data
    enum { IDD = IDD_MCMSG_DLG };

    void ShowMsgWindow(CWnd* pParent, const CString& strTipInfo);

protected:
    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
    virtual BOOL OnInitDialog();
    //响应关闭消息，删除对象
    virtual void OnCancel();
    virtual void PostNcDestroy();
    afx_msg void OnTimer(UINT_PTR nIDEvent);
    afx_msg void OnBnClickedOk();
    afx_msg void OnBnClickedCancel();

    DECLARE_MESSAGE_MAP()

private:
    void InitDlgPosition();

private:
    CString m_strTipInfo;
};

InOutTipDlg.cpp

// MCMsgTipDlg.cpp : implementation file
//

#include "stdafx.h"
#include "mcmsgtip_demo.h"
#include "InOutTipDlg.h"

const UINT_PTR BLAND_IN = 4;
const UINT_PTR BLAND_OUT = 5;

const UINT IN_ELAPSE = 1;
const UINT OUT_ELAPSE = 5000;

// CInOutTipDlg dialog

IMPLEMENT_DYNAMIC(CInOutTipDlg, CDialog)

CInOutTipDlg::CInOutTipDlg(CWnd* pParent /*=NULL*/)
: CDialog(CInOutTipDlg::IDD, pParent)
, m_strTipInfo(_T(""))
{

}

CInOutTipDlg::~CInOutTipDlg()
{
}

void CInOutTipDlg::DoDataExchange(CDataExchange* pDX)
{
    CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CInOutTipDlg, CDialog)
    ON_WM_TIMER()
    ON_BN_CLICKED(IDOK, &CInOutTipDlg::OnBnClickedOk)
    ON_BN_CLICKED(IDCANCEL, &CInOutTipDlg::OnBnClickedCancel)
END_MESSAGE_MAP()

// CInOutTipDlg message handlers
void CInOutTipDlg::ShowMsgWindow(CWnd* pParent, const CString& strTipInfo)
{
    m_strTipInfo = strTipInfo;
    Create(IDD, pParent);
    ShowWindow(SW_HIDE);
}

BOOL CInOutTipDlg::OnInitDialog()
{
    CDialog::OnInitDialog();

    // TODO:  Add extra initialization here
    SetDlgItemText(IDC_TIP_INFO, m_strTipInfo);

    InitDlgPosition();

    //消息渐入渐出效果
    SetTimer(BLAND_IN, IN_ELAPSE, NULL);

    return TRUE;
}

void CInOutTipDlg::InitDlgPosition()
{
    CRect rectInit;
    GetWindowRect(&rectInit);

    RECT rect;
    SystemParametersInfo(SPI_GETWORKAREA, 0, &rect, 0);
    int cy = rect.bottom-rect.top;
    int cx = rect.right-rect.left;

    int nx = rect.right - rectInit.Width();
    int ny = cy - rectInit.Height();

    rectInit.MoveToXY(nx, ny);

    MoveWindow(rectInit);
}

void CInOutTipDlg::OnTimer(UINT_PTR nIDEvent)
{
    RECT rect;
    SystemParametersInfo(SPI_GETWORKAREA,0,&rect,0);
    int cy = rect.bottom-rect.top;
    int cx = rect.right-rect.left;

    CRect rectTip;
    GetWindowRect(&rectTip);

    switch (nIDEvent)
    {
    case BLAND_IN:
        {
            KillTimer(BLAND_IN);
            AnimateWindow(1000, AW_BLEND); 

            SetTimer(BLAND_OUT, OUT_ELAPSE, NULL);
            break;
        }
    case BLAND_OUT:
        {
            KillTimer(BLAND_OUT);
            AnimateWindow(1000, AW_BLEND|AW_HIDE);
            PostMessage(WM_CLOSE);
            break;
        }
    }

    CDialog::OnTimer(nIDEvent);
}

void CInOutTipDlg::OnCancel()
{
    DestroyWindow();
}

void CInOutTipDlg::PostNcDestroy()
{
    CDialog::PostNcDestroy();

    //窗口销毁时，删除该对象
    delete this;
}

void CInOutTipDlg::OnBnClickedOk()
{
    OnOK();

    ::MessageBox(AfxGetMainWnd()->GetSafeHwnd(), _T("提示框的反馈-是"), _T("提示"), MB_OK);
}

void CInOutTipDlg::OnBnClickedCancel()
{
    OnCancel();
}

3、两种消息框调用

void ShowTipWindow(const CString& strTipInfo)
{
    CButton* pCheckBtn = (CButton*)GetDlgItem(IDC_CHECK_IO);
    if (BST_CHECKED == pCheckBtn->GetCheck())
    {
        //渐入渐出效果弹框
        CInOutTipDlg* pMsgWindow=new CInOutTipDlg();
        pMsgWindow->ShowMsgWindow(this, strTipInfo);
    }
    else
    {
        //上下浮动方式弹框
        CUpDownTipDlg* pMsgWindow=new CUpDownTipDlg();
        pMsgWindow->ShowMsgWindow(this, strTipInfo);
    }
}

两个消息提示框，都封装了ShowMsgWindow接口，传入父窗口和待提示信息就可以了。

^_^这个调用方式有内存泄露现象，具体实现的时候，可以在对话框销毁时（virtual void PostNcDestroy()），提供一个回调删除接口。