custombutton.cpp

Visual C++ 的学习资料一

// CustomButton.cpp : implementation file
//

#include "stdafx.h"
#include "Examle1.h"
#include "CustomButton.h"

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

/////////////////////////////////////////////////////////////////////////////
// CCustomButton

CCustomButton::CCustomButton()
{
	m_bitmapID = 0;
	isPressed = false;
}

CCustomButton::~CCustomButton()
{

}


BEGIN_MESSAGE_MAP(CCustomButton, CButton)
	//{{AFX_MSG_MAP(CCustomButton)
	ON_WM_MBUTTONDOWN()
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCustomButton message handlers

void CCustomButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	if (lpDrawItemStruct->CtlType==ODT_BUTTON)
	{
		//按钮ID
		UINT bID = lpDrawItemStruct->itemID;	
		//获取按钮文本
		CString text;

		CWnd* m_btn = GetParent()->GetDlgItem(lpDrawItemStruct->CtlID);
		CRect m_rect;
		if (m_btn!= NULL)
		{
			m_btn->GetWindowText(text);
			m_btn->GetClientRect(m_rect);

			CBitmap bitmap;
			bitmap.LoadBitmap(m_bitmapID);
			
			BITMAPINFO pbit;
			bitmap.GetObject(sizeof(pbit),&pbit);

			CDC* dc = CDC::FromHandle(lpDrawItemStruct->hDC);

			dc->SetBkMode(TRANSPARENT);
			
			CBrush m_brush;
			m_brush.CreateStockObject(LTGRAY_BRUSH);
			dc->FillRect(m_rect,&m_brush);
			dc->DrawEdge(m_rect,BDR_RAISEDOUTER|BDR_RAISEDINNER,BF_RECT);

			if (isPressed)
			{
					dc->DrawEdge(m_rect,BDR_RAISEDOUTER|BDR_SUNKENINNER ,BF_RECT);

					CRect temp(m_rect);
					temp.DeflateRect(2,2,2,2);
					dc->DrawFocusRect(temp);
				//	dc->Draw3dRect(m_rect,RGB(0,0,0),RGB(0,0,0));			
			}
			else
			{
				dc->FillRect(m_rect,&m_brush);
				dc->DrawEdge(m_rect,BDR_RAISEDOUTER|BDR_RAISEDINNER,BF_RECT);
			
			}

			switch (lpDrawItemStruct->itemState)
			{
			case ODS_FOCUS:
		
				{
					CRect temp(m_rect);
					temp.DeflateRect(2,2,2,2);
					dc->DrawFocusRect(temp);
					dc->Draw3dRect(m_rect,RGB(0,0,0),RGB(0,0,0));
					break;
				
				}
			}

			CDC m_memdc;
			m_memdc.CreateCompatibleDC(dc);
			m_memdc.SelectObject(&bitmap);

			int y;
			y = (m_rect.Height()-pbit.bmiHeader.biHeight)/2; //图像居中
			dc->StretchBlt(5,y,pbit.bmiHeader.biWidth,pbit.bmiHeader.biHeight,&m_memdc,0,0,pbit.bmiHeader.biWidth,pbit.bmiHeader.biHeight,SRCCOPY);
			
			m_rect.DeflateRect(pbit.bmiHeader.biWidth,0,0,0);
			dc->DrawText(text,m_rect,DT_CENTER|DT_SINGLELINE|DT_VCENTER);
			
			bitmap.DeleteObject();
			m_memdc.DeleteDC();
		}
		
	}	
}

void CCustomButton::OnMButtonDown(UINT nFlags, CPoint point) 
{		
	
	CButton::OnMButtonDown(nFlags, point);


}

void CCustomButton::OnLButtonDown(UINT nFlags, CPoint point) 
{
	isPressed = true;	
	CButton::OnLButtonDown(nFlags, point);
}

void CCustomButton::OnLButtonUp(UINT nFlags, CPoint point) 
{
	isPressed = false;	
	CButton::OnLButtonUp(nFlags, point);
}

int CCustomButton::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{

	if (CButton::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	
	return 0;
}

void CCustomButton::LoadButtonResource(UINT ID, CWnd *pParent, UINT BID)
{
	SubclassDlgItem(ID,pParent);
	m_bitmapID = BID;
}