www.pudn.com > TabWnd.rar > CMYButton.cpp

// CJButton.cpp : implementation file 
///////////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "CMYButton.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CMyButton 
 
CMyButton::CMyButton() 
{ 
	m_bLBtnDown  = false; 
	m_bFlatLook  = true; 
} 
 
CMyButton::~CMyButton() 
{ 
} 
 
IMPLEMENT_DYNAMIC(CMyButton, CButton) 
 
BEGIN_MESSAGE_MAP(CMyButton, CButton) 
	//{{AFX_MSG_MAP(CMyButton) 
	ON_WM_MOUSEMOVE() 
	ON_WM_LBUTTONDOWN() 
	ON_WM_LBUTTONUP() 
	ON_WM_TIMER() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CMyButton message handlers 
 
void CMyButton::OnMouseMove(UINT nFlags, CPoint point) 
{ 
	SetTimer (1,10,NULL); 
	CButton::OnMouseMove(nFlags, point); 
} 
 
void CMyButton::OnLButtonDown(UINT nFlags, CPoint point)  
{ 
	m_bLBtnDown = true; 
	CButton::OnLButtonDown(nFlags, point); 
} 
 
void CMyButton::OnLButtonUp(UINT nFlags, CPoint point)  
{ 
	m_bLBtnDown = false; 
	CButton::OnLButtonUp(nFlags, point); 
} 
 
void CMyButton::OnTimer(UINT nIDEvent)  
{ 
	CRect rcItem; 
	GetWindowRect(rcItem); 
 
	CPoint ptCursor; 
	GetCursorPos(&ptCursor); 
 
	static bool pPainted = false; 
 
	if (m_bLBtnDown==true) { 
		KillTimer (1); 
 
		if (pPainted == true) { 
			InvalidateRect (NULL); 
		} 
 
		pPainted = false; 
		return; 
	} 
 
	if (!rcItem.PtInRect(ptCursor)) { 
		KillTimer (1); 
 
		if (pPainted) { 
			InvalidateRect (NULL); 
		} 
 
		pPainted = false; 
		return; 
	} 
 
	// On mouse over, show raised button. 
	else if(m_bFlatLook) 
	{ 
		// Get the device context for the client area. 
		CDC *pDC = GetDC(); 
 
		if (pPainted == false) 
		{ 
			// repaint client area. 
			GetClientRect(rcItem); 
			pDC->FillSolidRect(rcItem, ::GetSysColor(COLOR_BTNFACE)); 
 
			// if an icon is associated with button, draw it. 
			if( GetIcon() ) { 
				SetIconRect(); 
				DrawIconEx( pDC->GetSafeHdc(), m_rcIcon.left, m_rcIcon.top, 
					GetIcon(), m_rcIcon.Width(), m_rcIcon.Height(), NULL, (HBRUSH)NULL, DI_NORMAL );  
			} 
			 
			// draw the button rect. 
			pDC->Draw3dRect(rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT), 
				::GetSysColor(COLOR_BTNSHADOW)); 
			 
			pPainted = true; 
		} 
 
		ReleaseDC (pDC); 
	} 
 
	CButton::OnTimer(nIDEvent); 
} 
 
void CMyButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)  
{ 
	ASSERT(lpDrawItemStruct != NULL);	 
	CDC* pDC = GetDC(); 
	 
	m_nState = lpDrawItemStruct->itemState; 
 
	// copy the rect, and fill the background. 
	m_rcItem.CopyRect(&lpDrawItemStruct->rcItem);	 
	pDC->FillSolidRect(m_rcItem, ::GetSysColor(COLOR_BTNFACE)); 
 
	// define rect to be used for left button down. 
	SetIconRect(); 
 
	if(m_bFlatLook) 
	{ 
		// Draw button pressed. 
		if ((m_nState & ODS_SELECTED)) { 
			pDC->Draw3dRect (m_rcItem, ::GetSysColor(COLOR_BTNSHADOW), 
				::GetSysColor(COLOR_BTNHIGHLIGHT)); 
		} 
		// Draw button flat. 
		else { 
			pDC->Draw3dRect (m_rcItem, ::GetSysColor(COLOR_BTNFACE), 
				::GetSysColor(COLOR_BTNFACE)); 
		} 
	} 
 
	else 
	{ 
		CRect rc(m_rcItem); 
		rc.DeflateRect(1,1); 
 
		// Draw button pressed. 
		if ((m_nState & ODS_SELECTED)) { 
			pDC->Draw3dRect (m_rcItem, ::GetSysColor(COLOR_3DDKSHADOW), 
				::GetSysColor(COLOR_BTNHIGHLIGHT)); 
			pDC->Draw3dRect (rc, ::GetSysColor(COLOR_BTNSHADOW), 
				::GetSysColor(COLOR_BTNFACE)); 
		} 
		// Draw button raised. 
		else { 
			pDC->Draw3dRect (m_rcItem, ::GetSysColor(COLOR_BTNHIGHLIGHT), 
				::GetSysColor(COLOR_3DDKSHADOW)); 
			pDC->Draw3dRect (rc, ::GetSysColor(COLOR_BTNFACE), 
				::GetSysColor(COLOR_BTNSHADOW)); 
		} 
	} 
 
	// Save the item state, set background to transparent. 
	pDC->SetBkMode( TRANSPARENT ); 
 
	// if an icon is associated with button, draw it. 
	if(GetIcon()) 
	{ 
		DrawIconEx (pDC->GetSafeHdc(), m_rcIcon.left, m_rcIcon.top, 
			GetIcon(), m_rcIcon.Width(), m_rcIcon.Height(), NULL, (HBRUSH)NULL, DI_NORMAL); 
	} 
 
	ReleaseDC (pDC); 
} 
 
void CMyButton::SetIcon(HICON hIcon, CSize cSize) 
{ 
	CButton::SetIcon(hIcon); 
	m_cSize.cx = cSize.cx; 
	m_cSize.cy = cSize.cy; 
} 
 
void CMyButton::SetIconRect() 
{ 
	CRect rcClient; 
	GetClientRect (&rcClient); 
 
	CRect rcWindow; 
	GetWindowRect (&rcWindow); 
 
	CPoint ptCursor; 
	GetCursorPos (&ptCursor); 
 
	CPoint ptCenter = rcClient.CenterPoint(); 
 
	int x1 = (rcClient.Width()-ptCenter.x)/2-1; 
	int x2 = x1+rcClient.Width()-1; 
	int y1 = (rcClient.Height()-ptCenter.y)/2-1; 
	int y2 = y1+rcClient.Height()-1; 
 
	m_rcIcon.CopyRect (rcClient); 
 
	if( m_bLBtnDown ) { 
		if(rcWindow.PtInRect(ptCursor)) { 
			m_rcIcon.OffsetRect(1,1); 
		} 
	} 
}