btnst.cpp

这是一个西门子 ModBus 协议的通讯调试软件。（原码）

// BtnST.cpp : implementation file
//

#include "stdafx.h"
#include "BtnST.h"

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

/////////////////////////////////////////////////////////////////////////////
// CButtonST

CButtonST::CButtonST()
{
  m_MouseOnButton = FALSE;

  m_hIconIn = NULL;
  m_hIconOut = NULL;
  m_cxIcon = 0;
  m_cyIcon = 0;
  m_hCursor = NULL;
  
  // Default type is "flat" button
  m_bIsFlat = TRUE; 
  
  // By default draw border in "flat" button 
  m_bDrawBorder = TRUE; 
  
  // By default icon is aligned horizontally
  m_nAlign = ST_ALIGN_HORIZ; 
  
  // By default show the text button
  m_bShowText = TRUE; 
  
  // By default, for "flat" button, don't draw the focus rect
  m_bDrawFlatFocus = FALSE;
	
  SetDefaultInactiveBgColor();
  SetDefaultInactiveFgColor();
  SetDefaultActiveBgColor();
  SetDefaultActiveFgColor();
} // End of CButtonST


CButtonST::~CButtonST()
{
	// Destroy the icons (if any)
	if (m_hIconIn != NULL) ::DeleteObject(m_hIconIn);
	if (m_hIconOut != NULL) ::DeleteObject(m_hIconOut);
	// Destroy the cursor (if any)
	if (m_hCursor != NULL) ::DestroyCursor(m_hCursor);
} // End of ~CButtonST


BEGIN_MESSAGE_MAP(CButtonST, CButton)
    //{{AFX_MSG_MAP(CButtonST)
	ON_WM_CAPTURECHANGED()
	ON_WM_SETCURSOR()
	ON_WM_KILLFOCUS()
	ON_WM_MOUSEMOVE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


void CButtonST::SetIcon(int nIconInId, int nIconOutId, BYTE cx, BYTE cy)
{
	HINSTANCE hInstResource = AfxFindResourceHandle(MAKEINTRESOURCE(nIconInId),
													RT_GROUP_ICON);
	// Set icon when the mouse is IN the button
	m_hIconIn = (HICON)::LoadImage(hInstResource/*AfxGetApp()->m_hInstance*/, MAKEINTRESOURCE(nIconInId), IMAGE_ICON, 0, 0, 0);
  
	// Set icon when the mouse is OUT the button
	m_hIconOut = (nIconOutId == NULL) ? m_hIconIn : (HICON)::LoadImage(hInstResource/*AfxGetApp()->m_hInstance*/, MAKEINTRESOURCE(nIconOutId), IMAGE_ICON, 0, 0, 0);
  
	m_cxIcon = cx;
	m_cyIcon = cy;

	m_MouseOnButton = TRUE;
	RedrawWindow();
} 


BOOL CButtonST::SetBtnCursor(int nCursorId)
{
	HINSTANCE hInstResource;
	// Destroy any previous cursor
	if (m_hCursor != NULL) ::DestroyCursor(m_hCursor);
	m_hCursor = NULL;

	// If we want a cursor
	if (nCursorId != -1)
	{
		hInstResource = AfxFindResourceHandle(MAKEINTRESOURCE(nCursorId),
											RT_GROUP_CURSOR);
		// Load icon resource
		m_hCursor = (HCURSOR)::LoadImage(hInstResource/*AfxGetApp()->m_hInstance*/, MAKEINTRESOURCE(nCursorId), IMAGE_CURSOR, 0, 0, 0);
		// If something wrong then return FALSE
		if (m_hCursor == NULL) return FALSE;
	}

	return TRUE;
} // End of SetBtnCursor


void CButtonST::SetFlat(BOOL bState)
{
  m_bIsFlat = bState;
  Invalidate();
} // End of SetFlat


BOOL CButtonST::GetFlat()
{
  return m_bIsFlat;
} // End of GetFlat


void CButtonST::SetAlign(int nAlign)
{
  switch (nAlign)
  {    
    case ST_ALIGN_HORIZ:
         m_nAlign = ST_ALIGN_HORIZ;
         break;
    case ST_ALIGN_VERT:
         m_nAlign = ST_ALIGN_VERT;
         break;
  }
  Invalidate();
} // End of SetAlign


int CButtonST::GetAlign()
{
  return m_nAlign;
} // End of GetAlign


void CButtonST::DrawBorder(BOOL bEnable)
{
  m_bDrawBorder = bEnable;
} // End of DrawBorder


const char* CButtonST::GetVersionC()
{
  return "2.3";
} // End of GetVersionC


const short CButtonST::GetVersionI()
{
  return 23; // Divide by 10 to get actual version
} // End of GetVersionI


void CButtonST::SetShowText(BOOL bShow)
{
  m_bShowText = bShow;
  Invalidate();
} // End of SetShowText


BOOL CButtonST::GetShowText()
{
  return m_bShowText;
} // End of GetShowText


void CButtonST::OnMouseMove(UINT nFlags, CPoint point)
{
  CWnd* pWnd;  // Finestra attiva
  CWnd* pParent; // Finestra che contiene il bottone

  CButton::OnMouseMove(nFlags, point);

  // If the mouse enter the button with the left button pressed
  // then do nothing
  if (nFlags & MK_LBUTTON && m_MouseOnButton == FALSE) return;

  // If our button is not flat then do nothing
  if (m_bIsFlat == FALSE) return;

  pWnd = GetActiveWindow();
  pParent = GetOwner();

	if ((GetCapture() != this) && 
		(
#ifndef ST_LIKEIE
		pWnd != NULL && 
#endif
		pParent != NULL)) 
	{
		m_MouseOnButton = TRUE;
		//SetFocus();	// Thanks Ralph!
		SetCapture();
		Invalidate();
	}
	else
  {
    CRect rc;
    GetClientRect(&rc);
    if (!rc.PtInRect(point))
    {
      // Redraw only if mouse goes out
      if (m_MouseOnButton == TRUE)
      {
        //m_MouseOnButton = FALSE;
        Invalidate();
      }
      // If user is NOT pressing left button then release capture!
      if (!(nFlags & MK_LBUTTON)) ReleaseCapture();
    }
  }
} // End of OnMouseMove


void CButtonST::OnKillFocus(CWnd * pNewWnd)
{
  CButton::OnKillFocus(pNewWnd);

  // If our button is not flat then do nothing
  if (m_bIsFlat == FALSE) return;

  if (m_MouseOnButton == TRUE)
  {
    //m_MouseOnButton = FALSE;
    Invalidate();
  }
} // End of OnKillFocus


void CButtonST::OnCaptureChanged(CWnd *pWnd) 
{
	if (m_MouseOnButton == TRUE)
	{
		ReleaseCapture();
		Invalidate();
	}

	// Call base message handler
	CButton::OnCaptureChanged(pWnd);
} // End of OnCaptureChanged


void CButtonST::DrawItem(LPDRAWITEMSTRUCT lpDIS)
{
#ifdef ST_USE_MEMDC
  CDC  *pdrawDC = CDC::FromHandle(lpDIS->hDC);
  CMemDC memDC(pdrawDC);
  CDC  *pDC = &memDC;
#else	
  CDC* pDC = CDC::FromHandle(lpDIS->hDC);
#endif

  CPen *pOldPen;
  BOOL bIsPressed  = (lpDIS->itemState & ODS_SELECTED);
  BOOL bIsFocused  = (lpDIS->itemState & ODS_FOCUS);
  BOOL bIsDisabled = (lpDIS->itemState & ODS_DISABLED);

  CRect itemRect = lpDIS->rcItem;

  if (m_bIsFlat == FALSE)
  {
    if (bIsFocused)
    {
      CBrush br(RGB(0,0,0));  
      pDC->FrameRect(&itemRect, &br);
      itemRect.DeflateRect(1, 1);
    }
  }

  // Prepare draw... paint button's area with background color
  COLORREF bgColor;
  if ((m_MouseOnButton == TRUE) || (bIsPressed))
    bgColor = GetActiveBgColor();
  else
    bgColor = GetInactiveBgColor();

  CBrush br(bgColor);
  pDC->FillRect(&itemRect, &br);

	// Disegno lo sfondo del bottone
//CBrush br(GetSysColor(COLOR_BTNFACE));  
//pDC->FillRect(&itemRect, &br);

  // Draw pressed button
  if (bIsPressed)
  {
    if (m_bIsFlat == TRUE)
    {
      if (m_bDrawBorder == TRUE)
      {
	    CPen penBtnHiLight(PS_SOLID, 0, GetSysColor(COLOR_BTNHILIGHT)); // Bianco
        CPen penBtnShadow(PS_SOLID, 0, GetSysColor(COLOR_BTNSHADOW));   // Grigio scuro

        // Disegno i bordi a sinistra e in alto
        // Dark gray line
        pOldPen = pDC->SelectObject(&penBtnShadow);
        pDC->MoveTo(itemRect.left, itemRect.bottom-1);
        pDC->LineTo(itemRect.left, itemRect.top);
        pDC->LineTo(itemRect.right, itemRect.top);
        // Disegno i bordi a destra e in basso
        // White line