buttonstyle.cpp

魔法单词记忆——DAO访问ACCESS数据库

// ButtonStyle.cpp : implementation file
//

#include "stdafx.h"
#include "MagicWord.h"
#include "ButtonStyle.h"

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

/////////////////////////////////////////////////////////////////////////////
// CButtonStyle

CButtonStyle::CButtonStyle()
{
   m_MouseOnButton = FALSE;
   m_hIconIn = NULL;
   m_hIconOut = NULL;
   m_cxIcon = 0;
   m_cyIcon = 0;
   m_hCursor = 0;
   
   m_bIsFlat = TRUE;             // Default type is "flat" button
   m_bDrawBorder = TRUE;         // Draw border in "flat" button
   m_nAlign = ST_ALIGN_HORIZ;    // Icon is aligned horizontally
   m_bShowText = TRUE;           // Show the text button
   m_bDrawFlatFocus = FALSE;     // For "flat" button don't draw the focus rect

   SetDefInactiveBgColor();
   SetDefInactiveFgColor();
   SetDefActiveBgColor();
   SetDefActiveFgColor();
}

CButtonStyle::~CButtonStyle()
{
   // 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 );
}


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

/////////////////////////////////////////////////////////////////////////////
// CButtonStyle message handlers

void CButtonStyle::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 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
            pDC->SelectObject( penBtnHiLight );
            pDC->MoveTo( itemRect.left, itemRect.bottom-1 );
            pDC->LineTo( itemRect.right-1, itemRect.bottom-1 );
            pDC->LineTo( itemRect.right-1, itemRect.top-1 );
            
            pDC->SelectObject( pOldPen );
         }
      }
      else    
      {
         CBrush brBtnShadow( GetSysColor( COLOR_BTNSHADOW ) );
         pDC->FrameRect( &itemRect, &brBtnShadow );
      }
   }
   else  // ...else draw non pressed button
   {
      CPen penBtnHiLight( PS_SOLID, 0, GetSysColor( COLOR_BTNHILIGHT ) );  // White
      CPen pen3DLight(    PS_SOLID, 0, GetSysColor( COLOR_3DLIGHT ) );     // Light gray
      CPen penBtnShadow(  PS_SOLID, 0, GetSysColor( COLOR_BTNSHADOW ) );   // Dark gray
      CPen pen3DDKShadow( PS_SOLID, 0, GetSysColor( COLOR_3DDKSHADOW ) );  // Black
      
      if ( m_bIsFlat == TRUE )
      {
         if (m_MouseOnButton == TRUE && m_bDrawBorder == TRUE)
         {
            // Disegno i bordi a sinistra e in alto
            // White line
            pOldPen = pDC->SelectObject( &penBtnHiLight );
            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
            // Dark gray line
            pDC->SelectObject( penBtnShadow );
            pDC->MoveTo( itemRect.left, itemRect.bottom - 1 );
            pDC->LineTo( itemRect.right - 1, itemRect.bottom - 1 );
            pDC->LineTo( itemRect.right - 1, itemRect.top - 1 );
            
            pDC->SelectObject( pOldPen );
         }
      }
      else
      {
         // Disegno i bordi a sinistra e in alto
         // White line         
         pOldPen = pDC->SelectObject( &penBtnHiLight );
         pDC->MoveTo( itemRect.left, itemRect.bottom - 1 );
         pDC->LineTo( itemRect.left, itemRect.top );
         pDC->LineTo( itemRect.right, itemRect.top );
         
         // Light gray line
         pDC->SelectObject(pen3DLight);
         pDC->MoveTo( itemRect.left + 1, itemRect.bottom - 1 );
         pDC->LineTo( itemRect.left + 1, itemRect.top + 1 );
         pDC->LineTo( itemRect.right, itemRect.top + 1 );
         
         // Disegno i bordi a destra e in basso
         // Black line
         pDC->SelectObject( pen3DDKShadow );
         pDC->MoveTo( itemRect.left, itemRect.bottom -1 );
         pDC->LineTo( itemRect.right - 1, itemRect.bottom - 1 );
         pDC->LineTo( itemRect.right - 1, itemRect.top - 1 );
         
         // Dark gray line
         pDC->SelectObject( penBtnShadow);
         pDC->MoveTo( itemRect.left + 1, itemRect.bottom - 2 );
         pDC->LineTo( itemRect.right - 2, itemRect.bottom - 2 );
         pDC->LineTo( itemRect.right - 2, itemRect.top);
         
         pDC->SelectObject( pOldPen );
      }
   }
   
   // Read the button title
   CString sTitle;
   GetWindowText( sTitle );
   
   // If we don't want the title displayed
   if ( m_bShowText == FALSE )
      sTitle.Empty();
   
   CRect captionRect = lpDIS->rcItem;
   
   // Draw the icon
   if ( m_hIconIn != NULL )
   {
      DrawTheIcon( pDC, &sTitle, &lpDIS->rcItem, &captionRect, bIsPressed, bIsDisabled );
   }
   
   // Write the button title (if any)
   if ( sTitle.IsEmpty() == FALSE )
   {
      // Disegno la caption del bottone
      // Se il bottone e' premuto muovo la captionRect di conseguenza
      if ( bIsPressed )
         captionRect.OffsetRect( 1, 1 );
      
      // ONLY FOR DEBUG
      // Evidenzia il rettangolo in cui verra' centrata la caption 
    
#ifdef ST_USE_MEMDC
      // Get dialog's font
      CFont *pCurrentFont = GetFont(); 
      CFont *pOldFont = pDC->SelectObject( pCurrentFont );
#endif
      if ( ( m_MouseOnButton == TRUE) || ( bIsPressed ) ) 
      {
         pDC->SetTextColor( GetActiveFgColor() );
         pDC->SetBkColor( GetActiveBgColor() );
      }
      else
      {
         pDC->SetTextColor( GetInactiveFgColor() );
         pDC->SetBkColor( GetInactiveBgColor() );
      }
      
      // Center text
      CRect centerRect = captionRect;
      pDC->DrawText( sTitle, -1, captionRect, DT_SINGLELINE|DT_CALCRECT );
      captionRect.OffsetRect( ( centerRect.Width()  - captionRect.Width() ) / 2,
                              ( centerRect.Height() - captionRect.Height() ) / 2 );
      
      pDC->DrawState( captionRect.TopLeft(), captionRect.Size(), (LPCTSTR) sTitle,
                      ( bIsDisabled ? DSS_DISABLED : DSS_NORMAL ), TRUE, 0, (CBrush*) NULL );

#ifdef ST_USE_MEMDC
      pDC->SelectObject( pOldFont );
#endif
   }
   
   if (m_bIsFlat == FALSE || (m_bIsFlat == TRUE && m_bDrawFlatFocus == TRUE))
   {
      // Draw the focus rect
      if ( bIsFocused )
      {
         CRect focusRect = itemRect;
         focusRect.DeflateRect( 3, 3 );
         pDC->DrawFocusRect( &focusRect );
      }
   }
}

void CButtonStyle::PreSubclassWindow() 
{
   // Add BS_OWNERDRAW style
   SetButtonStyle( GetButtonStyle() | BS_OWNERDRAW );
	
	CButton::PreSubclassWindow();
}

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

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

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

   if ( m_MouseOnButton = FALSE )
   {
      m_MouseOnButton = FALSE;
      Invalidate();
   }
}

void CButtonStyle::OnMouseMove(UINT nFlags, CPoint point) 
{