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。