colorbutton.cpp

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// ColorButton.cpp : implementation file
//

#include "stdafx.h"
#include "FoodMenu.h"
#include "ColorButton.h"

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

/////////////////////////////////////////////////////////////////////////////
// CColorButton

CColorButton::CColorButton()
{
	HadSelected=false;
}

CColorButton::~CColorButton()
{
}


BEGIN_MESSAGE_MAP(CColorButton, CButton)
	//{{AFX_MSG_MAP(CColorButton)
		// NOTE - the ClassWizard will add and remove mapping macros here.
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CColorButton message handlers

void CColorButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
	UINT state = lpDrawItemStruct->itemState;//获得按钮状态
	CRect focusRect, btnRect;
	focusRect.CopyRect(&lpDrawItemStruct->rcItem);
	btnRect.CopyRect(&lpDrawItemStruct->rcItem);//矩阵拷贝
  //取得按钮标题
     TCHAR buffer[MAX_PATH + 1];
	GetWindowText(buffer,MAX_PATH);
	 strlong=0;
     while(buffer[strlong]!=NULL)
      strlong++;
	
	//绘制按钮
	if(!HadSelected)//还没按
	{
    	DrawFilledRect(pDC,btnRect,GetBGColor()); //填充颜色(白)
    	DrawButtonText(pDC,btnRect,buffer,GetFGColor());//填充文字

	}
    else//按了
	{
       	   DrawFilledRect(pDC,btnRect,GetDisabledColor());//填充颜色
            DrawButtonText(pDC,btnRect,buffer,RGB(255,255,255));//填充文字
	 }
	//根据按钮的状态，变化。
	if(state & ODS_FOCUS  )//鼠标在focus地范围内
	{
	 
	  if(state & ODS_SELECTED)//按下还没放手
	  {
	   
		  	DrawFilledRect(pDC,btnRect,GetDisabledColor());

            DrawButtonText(pDC,btnRect,buffer,RGB(255,255,255));
     
			HadSelected=true;
	  }
	}
	else//按了其他建恢复原来的颜色
	{
	  	DrawFilledRect(pDC,btnRect,GetBGColor());
    	DrawButtonText(pDC,btnRect,buffer,GetFGColor());
	
	}
}

BOOL CColorButton::Attach(const UINT nID, CWnd *pParent, const COLORREF BGColor, 
						  const COLORREF FGColor, const COLORREF DisabledColor)
{
   if(!SubclassDlgItem(nID,pParent))
	   return false;
   m_fg = FGColor;
   m_bg = BGColor;
   m_disabled = DisabledColor;
   return true;
}

COLORREF CColorButton::GetFGColor()
{
	m_fg=RGB(32,25,78);
  return m_fg;
}

COLORREF CColorButton::GetBGColor()
{
  m_bg=RGB(255,255,255);//()175,234,241
  return m_bg;
}

COLORREF CColorButton::GetDisabledColor()
{
	m_disabled=RGB(128,191,255);//110,180,255
  return m_disabled;
}

void CColorButton::DrawFilledRect(CDC *DC, CRect R, COLORREF color)
{
   CBrush B;
   B.CreateSolidBrush(color);
   DC->FillRect(R,&B);
}

void CColorButton::DrawButtonText(CDC *DC, CRect R,unsigned short Buf[], COLORREF TextColor)
{
  COLORREF prevColor = DC->SetTextColor(TextColor);
  DC->SetBkMode(TRANSPARENT);
  DC->DrawText((LPCTSTR)Buf,strlong/*(strlen(Buf))*/,R, DT_VCENTER |DT_SINGLELINE);

  DC->SetTextColor(prevColor);
}