Duilib 实现右下角弹出像QQ新闻窗口，3秒后自动关闭(一)

转载:https://blog.twofei.com/667/

自绘或子类化控件时，有时需要处理鼠标进入（MouseEnter）/鼠标离开（MouseLeave）/鼠标停留（MouseHover）消息，虽然有定义这两个消息常量（WM_MOUSEHOVER 与 WM_MOUSELEAVE），但默认情况下 Windows 的窗口消息是不会产生这三个消息的。但提供了一个 API 函数_TrackMouseEvent 可以使用，这个函数可以使 Windows 产生 鼠标停留（WM_MOUSEHOVER）与 鼠标离开（WM_MOUSELEAVE）消息，至于鼠标进入消息（Windows 没有定义 WM_MOUSEENTER 宏），直接手动在第一次鼠标移动的时候模拟产生就行了。不过不爽的是 鼠标离开消息 Windows 没有传递离开时的坐标过来，所以这个也得手动模拟：每次鼠标移动的时候记录下坐标，在收到鼠标离开消息时，采用此值即可。下面的代码没有作此处理，如有需要可手动加上。

效果：



.h文件

#ifndef _POPUPWND_H_
#define _POPUPWND_H_

#include "WndShadow.h"

#define WIN_VISITWIDTH    280
#define WIN_VISITHEIGHT    186

#define ID_VISITPOP_WINDOW 20
#define ID_TIMER_DISPLAY_DELAY 30
#define ID_TIMER_CLOSE_WINDOW 40

class CPopUpWnd :public WindowImplBase
{
public:
CPopUpWnd();

~CPopUpWnd();

public:
virtual LPCTSTR GetWindowClassName() const;

virtual void OnFinalMessage(HWND hWnd);

virtual CDuiString GetSkinFile();

virtual CDuiString GetSkinFolder();

virtual UILIB_RESOURCETYPE GetResourceType() const;

virtual CControlUI* CreateControl(LPCTSTR pstrClassName);

virtual LRESULT ResponseDefaultKeyEvent(WPARAM wParam);

virtual LRESULT HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam);

virtual void Notify(TNotifyUI& msg);

virtual void OnClick(TNotifyUI& msg);

virtual void InitWindow();

void OnPrepare();

public:

void InitControl();

void StartTrack();

void MoveSelfWindow();

LRESULT OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam,BOOL& bHandled);

LRESULT OnMouseMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

LRESULT OnMouseHover(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

LRESULT OnMouseLeave(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

LRESULT OnMouseEnter(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

public:
CWndShadow m_WndShadow;

CLabelUI* m_pMousePos;

UINT m_uTime;//移动窗口时器

protected:
bool m_bMouseTracking;   // 是否正在跟踪鼠标
bool m_bMouseWithin;     // 鼠标是否在窗口内
};

#endif//_POPUPWND_H

.cpp文件

#include "..\..\stdafx.h"
#include "PopUpWnd.h"
#pragma comment(lib, "comctl32.lib")

CPopUpWnd::CPopUpWnd()
:m_uTime(0)
,m_bMouseTracking(false)
,m_bMouseWithin(false)
,m_pMousePos(NULL)
{

}

CPopUpWnd::~CPopUpWnd()
{
if (m_uTime)
{
KillTimer(this->GetHWND(),ID_VISITPOP_WINDOW);
m_uTime = 0;
}
}

LPCTSTR CPopUpWnd::GetWindowClassName() const
{
return _T("PopUpWnd");
}

void CPopUpWnd::OnFinalMessage(HWND hWnd)
{
CWindowWnd::OnFinalMessage(hWnd);
}

CDuiString CPopUpWnd::GetSkinFile()
{
return _T("xml//PopUpDlg.xml");
}

CDuiString CPopUpWnd::GetSkinFolder()
{
return _T("");
}

UILIB_RESOURCETYPE CPopUpWnd::GetResourceType() const
{
return UILIB_FILE;
}

LRESULT CPopUpWnd::ResponseDefaultKeyEvent(WPARAM wParam)
{
if (wParam == VK_RETURN)
{
return FALSE;
}
else if (wParam == VK_ESCAPE)
{
Close();
return TRUE;
}
return FALSE;
}

CControlUI* CPopUpWnd::CreateControl(LPCTSTR pstrClassName)
{

return NULL;
}

void CPopUpWnd::InitWindow()
{
//窗体增加阴影
CWndShadow::Initialize(m_PaintManager.GetInstance());
m_WndShadow.Create(m_hWnd , true);
m_WndShadow.SetSize(2);
m_WndShadow.SetPosition(1, 1);

//修改窗口风格
//SetWindowLong(m_hWnd,GWL_STYLE,GetWindowLong(m_hWnd,GWL_STYLE) & ~WS_MAXIMIZEBOX & ~WS_THICKFRAME );

//加入WS_EX_LAYERED扩展属性
LONG styleValue = ::GetWindowLong(m_hWnd, GWL_EXSTYLE);

styleValue &= ~(WS_EX_APPWINDOW);//当窗口可见时将一个顶层窗口放置在任务栏上
styleValue |= WS_EX_TOOLWINDOW; //工具条窗口样式

SetWindowLong(m_hWnd,GWL_EXSTYLE,styleValue);

InitControl();

//右下角慢慢弹出
//m_uTime = SetTimer(m_hWnd,ID_VISITPOP_WINDOW,20,NULL);

//在此调用MoveSelfWindow()方法  窗口不会显示在右下角,因为InitWindow在WM_CREATE 消息响应函数里调用，窗口还没创建出来
}

void CPopUpWnd::InitControl()
{
m_pMousePos = static_cast<CLabelUI*>(m_PaintManager.FindControl(TEXT("mouse")));
}

void CPopUpWnd::OnPrepare()
{
//直接显示在右下角
MoveSelfWindow();

//3秒后窗口自动关闭
SetTimer(m_hWnd,ID_TIMER_DISPLAY_DELAY,3000,NULL);
}

void CPopUpWnd::Notify(TNotifyUI& msg)
{
if( msg.sType == _T("windowinit") ) OnPrepare();

if ( msg.sType == _T("click") )
{

}
WindowImplBase::Notify(msg);
}

void CPopUpWnd::OnClick(TNotifyUI& msg)
{
__super::OnClick(msg);
}

void CPopUpWnd::MoveSelfWindow()
{
RECT rect;
SystemParametersInfo(SPI_GETWORKAREA,0,&rect,0);
int y=rect.bottom-rect.top;
int x=rect.right-rect.left;
x=x-WIN_VISITWIDTH;
y=y-WIN_VISITHEIGHT;

MoveWindow(m_hWnd,x,y,WIN_VISITWIDTH,WIN_VISITHEIGHT,TRUE);
}

LRESULT CPopUpWnd::OnTimer(UINT uMsg, WPARAM wParam, LPARAM lParam,BOOL& bHandled)
{
static int nHeight=0;
int cy=GetSystemMetrics(SM_CYSCREEN);
int cx=GetSystemMetrics(SM_CXSCREEN);
RECT rect;
SystemParametersInfo(SPI_GETWORKAREA,0,&rect,0);
int y=rect.bottom-rect.top;
int x=rect.right-rect.left;
x=x-WIN_VISITWIDTH;

switch(wParam)
{//多个定时器
case ID_VISITPOP_WINDOW:
if(nHeight<=WIN_VISITHEIGHT)
{
++nHeight;
MoveWindow(m_hWnd,x,y-WIN_VISITHEIGHT,WIN_VISITWIDTH,WIN_VISITHEIGHT,TRUE);
}
else
{
//nHeight = 0;
KillTimer(m_hWnd,ID_VISITPOP_WINDOW);

SetTimer(m_hWnd,ID_TIMER_DISPLAY_DELAY,3000,NULL);
}
break;
case ID_TIMER_DISPLAY_DELAY:
KillTimer(m_hWnd,ID_TIMER_DISPLAY_DELAY);
Close(IDCLOSE);
break;
}
return 0;
}

//LRESULT CPopUpWnd::OnMouseMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
//{
//    POINT pt = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
//    //::ScreenToClient(m_hWnd,&pt);//转换成屏幕坐标
//    //POINT pt1 ;/*= { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };*/
//    //GetCursorPos(&pt1);
//    RECT rect;
//    ::GetWindowRect (m_hWnd,&rect);
//    //::ClientToScreen(m_hWnd,&pt);//转换成屏幕坐标
//    if (PtInRect(&rect,pt))//判断point是否在rect内部
//    {
//        KillTimer(m_hWnd,ID_TIMER_DISPLAY_DELAY);
//    }
//
//    return 0;
//}

void CPopUpWnd::StartTrack()
{
TRACKMOUSEEVENT tme = {0};
tme.cbSize = sizeof(tme);
tme.hwndTrack = m_hWnd;
tme.dwFlags = TME_HOVER | TME_LEAVE;
tme.dwHoverTime = HOVER_DEFAULT;
_TrackMouseEvent(&tme);
}

LRESULT CPopUpWnd::OnMouseMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// 如果鼠标不在客户区内，就产生一个鼠标进入事件
if(!m_bMouseWithin) {
OnMouseEnter(uMsg /* WM_MOUSEMOVE */, wParam, lParam, bHandled);
}

// 开始跟踪鼠标停留/离开事件
if(!m_bMouseTracking) {
StartTrack();
m_bMouseTracking = true;
return 0;
}

TCHAR text[MAX_PATH];
wsprintf(text,_T("鼠标移动: %d,%d"),GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));

m_pMousePos->SetText(text);

return 0;
}

LRESULT CPopUpWnd::OnMouseHover(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
m_bMouseTracking = false;

TCHAR text[MAX_PATH];
wsprintf(text,_T("鼠标停留: %d,%d"),GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
m_pMousePos->SetText(text);

return 0;
}

LRESULT CPopUpWnd::OnMouseLeave(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
m_bMouseTracking = false;
m_bMouseWithin = false;

SetTimer(m_hWnd,ID_TIMER_DISPLAY_DELAY,3000,NULL);

TCHAR text[MAX_PATH];
wsprintf(text,_T("鼠标离开: %d,%d"),GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
m_pMousePos->SetText(text);

return 0;
}

LRESULT CPopUpWnd::OnMouseEnter(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
m_bMouseWithin = true;

KillTimer(m_hWnd,ID_TIMER_DISPLAY_DELAY);

TCHAR text[MAX_PATH];
wsprintf(text,_T("鼠标进入:%d,%d"),GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
m_pMousePos->SetText(text);
return 0;
}

LRESULT CPopUpWnd::HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
LRESULT lRes = 0;
BOOL bHandled = TRUE;

switch( uMsg )
{
case WM_NCLBUTTONDBLCLK:
//不做处理
{
return 0;
}
break;
case WM_TIMER:
lRes = OnTimer(uMsg,wParam,lParam,bHandled);
break;
case WM_MOUSELEAVE:
lRes = OnMouseLeave(uMsg,wParam,lParam,bHandled);
break;
default:
bHandled = FALSE;
}
return WindowImplBase::HandleMessage(uMsg,wParam,lParam);
}