void wxBitmapButton::OnSetBitmap()
{
wxCHECK_RET( m_widget != NULL, wxT("invalid bitmap button") );
InvalidateBestSize();
wxBitmap the_one;
if (!IsThisEnabled())
the_one = GetBitmapDisabled();
else if (m_isSelected)
the_one = GetBitmapPressed();
else if (HasFocus())
the_one = GetBitmapFocus();
if (!the_one.IsOk())
{
the_one = GetBitmapLabel();
if (!the_one.IsOk())
return;
}
GdkBitmap *mask = NULL;
if (the_one.GetMask()) mask = the_one.GetMask()->GetBitmap();
GtkWidget *child = BUTTON_CHILD(m_widget);
if (child == NULL)
{
// initial bitmap
GtkWidget *pixmap;
pixmap = gtk_pixmap_new(the_one.GetPixmap(), mask);
gtk_widget_show(pixmap);
gtk_container_add(GTK_CONTAINER(m_widget), pixmap);
}
else
{ // subsequent bitmaps
GtkPixmap *pixmap = GTK_PIXMAP(child);
gtk_pixmap_set(pixmap, the_one.GetPixmap(), mask);
}
}
bool wxBitmapButton::OS2OnDraw( WXDRAWITEMSTRUCT* pItem)
{
PUSERBUTTON pUser = (PUSERBUTTON)pItem;
bool bAutoDraw = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
if (!pUser)
return false;
wxBitmap bitmap;
bool bIsSelected = pUser->fsState & BDS_HILITED;
wxClientDC vDc(this);
if (bIsSelected)
bitmap = GetBitmapPressed();
else if (pUser->fsState & BDS_DEFAULT)
bitmap = GetBitmapFocus();
else if (pUser->fsState & BDS_DISABLED)
bitmap = GetBitmapDisabled();
if (!bitmap.IsOk() )
{
bitmap = GetBitmapLabel();
if (!bitmap.IsOk() )
return false;
}
//
// Centre the bitmap in the control area
//
int nX1 = 0;
int nY1 = 0;
wxPMDCImpl *impl = (wxPMDCImpl*) vDc.GetImpl();
int nWidth = impl->m_vRclPaint.xRight - impl->m_vRclPaint.xLeft;
int nHeight = impl->m_vRclPaint.yTop - impl->m_vRclPaint.yBottom;
int nBmpWidth = bitmap.GetWidth();
int nBmpHeight = bitmap.GetHeight();
nX1 = (nWidth - nBmpWidth) / 2;
nY1 = (nHeight - nBmpHeight) / 2;
if (bIsSelected && bAutoDraw)
{
nX1++;
nY1++;
}
//
// Draw the button face
//
DrawFace( vDc, bIsSelected );
//
// Draw the bitmap
//
vDc.DrawBitmap( bitmap, nX1, nY1, true );
//
// Draw focus / disabled state, if auto-drawing
//
if ((pUser->fsState == BDS_DISABLED) && bAutoDraw)
{
DrawButtonDisable( vDc, bitmap );
}
else if ((pUser->fsState == BDS_DEFAULT) && bAutoDraw)
{
DrawButtonFocus(vDc);
}
return true;
} // end of wxBitmapButton::OS2OnDraw