#include "stdafx.h"
#include "Calculator_1.h"
#include "AdvButton.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAdvButton

CAdvButton::CAdvButton()
{//初始化m_ClientRect
    m_ClientRect.left=0;
    m_ClientRect.top=0;
    m_ClientRect.right=0;
    m_ClientRect.bottom=0;
    m_ClientRgn.DeleteObject();//删除区域对象
    m_ClientRgn.CreateEllipticRgnIndirect(&m_ClientRect);//创建椭圆区域
  m_State=0;
      m_Point.x=m_Point.y=0;
  m_IsTimerOn=FALSE;
}

CAdvButton::~CAdvButton()
{
}


BEGIN_MESSAGE_MAP(CAdvButton, CButton)
    //{{AFX_MSG_MAP(CAdvButton)
    ON_WM_CREATE()
    ON_WM_LBUTTONDOWN()
    ON_WM_LBUTTONUP()
    ON_WM_MOUSEMOVE()
    ON_WM_TIMER()
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CAdvButton message handlers


BOOL CAdvButton::Create(LPCTSTR lpszCaption,DWORD dwStyle,const RECT& rect,CWnd *pParentWnd,UINT nID)//编译的时候这地方错了？？
{
    return CButton::Create(lpszCaption, dwStyle, rect, pParentWnd, nID);
}

//当鼠标在按钮的客户区内按下时，改变按钮的形状
void CAdvButton::OnLButtonDown(UINT nFlags, CPoint point)
{
    // TODO: Add your message handler code here and/or call default
    CRect rect;
    GetWindowRect(&rect);//得到按钮客户区域的屏幕坐标位置
     GetCursorPos(&m_Point);//得到鼠标的屏幕坐标位置
      if((rect.PtInRect(m_Point))&&(m_State != 2))
{
m_State = 2;    //2:select state
Invalidate();  //重绘客户区
}

    CButton::OnLButtonDown(nFlags, point);
}
//当鼠标在按钮的客户区内弹起时,改变按钮状态
void CAdvButton::OnLButtonUp(UINT nFlags, CPoint point)
{
    // TODO: Add your message handler code here and/or call default
    CRect rect;
    GetWindowRect(&rect);   //得到按钮客户区域的屏幕坐标位置
    GetCursorPos(&m_Point);  //得到鼠标的屏幕坐标位置
    if((rect.PtInRect(m_Point))&&(m_State != 1))
    {
        m_State = 1;    //1:focus state
        Invalidate();   //重绘客户区
    }

    CButton::OnLButtonUp(nFlags, point);


}

void CAdvButton::OnMouseMove(UINT nFlags, CPoint point)
{
    // TODO: Add your message handler code here and/or call default
    if(!m_IsTimerOn)    //如果计时器没用启动
{
SetTimer(1000,100,NULL);  //启动计时器
m_IsTimerOn = TRUE;
}
    CButton::OnMouseMove(nFlags, point);
}

void CAdvButton::OnTimer(UINT nIDEvent)
{
    // TODO: Add your message handler code here and/or call default
CRect rect;
    GetWindowRect(&rect);   //得到按钮客户区域的屏幕坐标位置
    GetCursorPos(&m_Point);  //得到鼠标的屏幕坐标位置

    if(rect.PtInRect(m_Point))  //如果鼠标在按钮的客户区内
    {
        if((m_State != 1)&&(m_State != 2))   
        {
            m_State = 1;
            Invalidate();
        }
    }
    else       //如果鼠标已经不在按钮的客户区内了
    {
        if(m_State != 0)
        {
            m_State = 0;
            Invalidate();  //重绘客户区
        }
        KillTimer(nIDEvent);  //关闭计时器
        m_IsTimerOn = FALSE;
    }   
    CButton::OnTimer(nIDEvent);
}

void CAdvButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
    // TODO: Add your code to draw the specified item
//get client rect
    GetClientRect(&m_ClientRect); //得到窗口的有效矩形区域
    m_ClientRgn.DeleteObject();//
    m_ClientRgn.CreateEllipticRgnIndirect(&m_ClientRect); //在矩形区域内创建椭圆
    //设置窗口的有效区域为椭圆
    SetWindowRgn(m_ClientRgn,FALSE);
    CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);//得到按钮控件客户区域的设备环境变量指针
    CPen* pPen = NULL;   
    switch (m_State)  //根据按钮不同的状态,创建不同的画笔
    {
        case 0:
            pPen = new CPen(PS_SOLID,1,DefaultColor);
            break;
        case 1:
            pPen = new CPen(PS_SOLID,1,FocusColor);
            break;
        case 2:
            pPen = new CPen(PS_SOLID,1,SelectColor);
            break;
        case 3:
            pPen = new CPen(PS_SOLID,1,DesiableColor);
            break;
    }

    pDC->SetBkMode(TRANSPARENT);//设置背景模式为透明
    pPen = pDC->SelectObject(pPen);   
    pDC->Ellipse(&m_ClientRect);  //在按钮客户区内绘制椭圆
    pPen = pDC->SelectObject(pPen);
    if(pPen) delete pPen;
    LPTSTR pCaption = new char[MAXCAPTIONLEN];    //
    int iLen = GetWindowText(pCaption,MAXCAPTIONLEN);
    pDC->SetTextColor(TextColor);   //指定文本颜色
    //绘制文本,作为按钮标题
    pDC->DrawText(pCaption,iLen,&m_ClientRect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);

   
}

void CAdvButton::PreSubclassWindow()
{
    // TODO: Add your specialized code here and/or call the base class
//修改按钮控件风格
    ModifyStyle(0,BS_OWNERDRAW|BS_PUSHBUTTON);
    CButton::PreSubclassWindow();
}