C++ wxList::GetFirst方法代码示例

static void ClearSplineList()
{
      wxList::compatibility_iterator node = ocpn_wx_spline_point_list.GetFirst();
      while (node)
      {
            wxPoint *point = (wxPoint *)node->GetData();
            delete point;
            ocpn_wx_spline_point_list.Erase(node);
            node = ocpn_wx_spline_point_list.GetFirst();
      }
}

static void wx_spline_draw_point_array(wxDCBase *dc)
{
  dc->DrawLines(&wx_spline_point_list, 0, 0 );
  wxList::compatibility_iterator node = wx_spline_point_list.GetFirst();
  while (node)
  {
    wxPoint *point = (wxPoint *)node->GetData();
    delete point;
    wx_spline_point_list.Erase(node);
    node = wx_spline_point_list.GetFirst();
  }
}

void csDiagramView::DoCut(wxList& shapes)
{
    csDiagramDocument *doc = (csDiagramDocument *)GetDocument();

    if (shapes.GetCount() > 0)
    {
        csDiagramCommand* cmd = new csDiagramCommand(_T("Cut"), doc);

        wxObjectList::compatibility_iterator node = shapes.GetFirst();
        while (node)
        {
            wxShape *theShape = (wxShape*) node->GetData();
            csCommandState* state = new csCommandState(ID_CS_CUT, NULL, theShape);

            // Insert lines at the front, so they are cut first.
            // Otherwise we may try to remove a shape with a line still
            // attached.
            if (theShape->IsKindOf(CLASSINFO(wxLineShape)))
                cmd->InsertState(state);
            else
                cmd->AddState(state);

            node = node->GetNext();
        }
        cmd->RemoveLines(); // Schedule any connected lines, not already mentioned,
                            // to be removed first

        doc->GetCommandProcessor()->Submit(cmd);
    }
}

void MyFrame::OnClose(wxCloseEvent& event)
{
    if ( !event.CanVeto() )
    {
        event.Skip();
        return ;
    }
    if ( m_children.GetCount () < 1 )
    {
        event.Skip();
        return ;
    }
    // now try the children
    wxObjectList::compatibility_iterator pNode = m_children.GetFirst ();
    wxObjectList::compatibility_iterator pNext ;
    MyChild * pChild ;
    while ( pNode )
    {
        pNext = pNode -> GetNext ();
        pChild = (MyChild*) pNode -> GetData ();
        if (pChild -> Close ())
        {
            m_children.Erase(pNode) ;
        }
        else
        {
            event.Veto();
            return;
        }
        pNode = pNext ;
    }
    event.Skip();
}

void GarbageCollector::DestroyItemList( wxList& lst )
{
    wxNode* pNode = lst.GetFirst();

    while( pNode )
    {
        delete &node_to_item( pNode );

        pNode = pNode->GetNext();
    }

    lst.Clear();
}

void wxFontRefData::ClearX11Fonts()
{
#if wxUSE_UNICODE
#else
    wxList::compatibility_iterator node = m_fonts.GetFirst();
    while (node)
    {
        wxXFont* f = (wxXFont*) node->GetData();
        delete f;
        node = node->GetNext();
    }
    m_fonts.Clear();
#endif
}

// Generalised command
void csDiagramView::DoCmd(wxList& shapes, wxList& oldShapes, int cmd, const wxString& op)
{
    csDiagramDocument *doc = (csDiagramDocument *)GetDocument();

    if (shapes.GetCount() > 0)
    {
        csDiagramCommand* command = new csDiagramCommand(op, doc);

        wxObjectList::compatibility_iterator node = shapes.GetFirst();
        wxObjectList::compatibility_iterator node1 = oldShapes.GetFirst();
        while (node && node1)
        {
            wxShape *theShape = (wxShape*) node->GetData();
            wxShape *oldShape = (wxShape*) node1->GetData();
            csCommandState* state = new csCommandState(cmd, theShape, oldShape);
            command->AddState(state);

            node = node->GetNext();
            node1 = node1->GetNext();
        }
        doc->GetCommandProcessor()->Submit(command);
    }
}

wxOGLConstraint::wxOGLConstraint(int type, wxShape *constraining, wxList &constrained)
{
	m_xSpacing = 0.0;
	m_ySpacing = 0.0;

	m_constraintType = type;
	m_constrainingObject = constraining;

	m_constraintId = 0;
	m_constraintName = wxT("noname");

	wxNode *node = constrained.GetFirst();
	while (node)
	{
		m_constrainedObjects.Append(node->GetData());
		node = node->GetNext();
	}
}

void wxFontRefData::ClearX11Fonts()
{
#if wxUSE_UNICODE
#else
    wxList::compatibility_iterator node = m_fonts.GetFirst();
#if defined(__INTEL_COMPILER) && 1 /* VDM auto patch */
#   pragma ivdep
#   pragma swp
#   pragma unroll
#   pragma prefetch
#   if 0
#       pragma simd noassert
#   endif
#endif /* VDM auto patch */
    while (node)
    {
        wxXFont* f = (wxXFont*) node->GetData();
        delete f;
        node = node->GetNext();
    }
    m_fonts.Clear();
#endif
}

//.........这里部分代码省略.........
        wxPoint ab;
        GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
        wxPoint cd;
        GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);

        if(dc) {
#if wxUSE_GRAPHICS_CONTEXT
            if(bHiDef && pgc)
                pgc->StrokeLine(ab.x, ab.y, cd.x, cd.y);
            else
#endif
                dc->DrawLine(ab.x, ab.y, cd.x, cd.y);
        } else { /* opengl */
#ifdef ocpnUSE_GL
            glVertex2d(ab.x, ab.y);
            glVertex2d(cd.x, cd.y);
#endif                
        }
    }

#if 0
      int text_sx, text_sy;
      dc.GetTextExtent(_T("10000"), &text_sx, &text_sy);
//      double m = text_sy / 2;
      int label_size = text_sx;
      int label_space = 400;
//      double coef = .01;
      int len = label_space/4;

      //    Allocate an array big enough
      wxPoint *pPoints = new wxPoint[nsegs+1];

      MySegListList::Node *listnode;
      listnode = m_SegListList.GetFirst();
      while(listnode)
      {
            MySegList *listsort = listnode->GetData();

            //    Fill in the array
            MySegList::Node *node;
            Segment *seg;

            node = listsort->GetFirst();
            if(node)
            {
                  seg = node->GetData();
//                  wxPoint ab = vp->GetMercatorPixFromLL(seg->py1, seg->px1);
//                  wxPoint ab(0,0);
				  wxPoint ab;
				  GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
                  pPoints[0] = ab;
            }
            int ip=1;

            while (node)
            {
                  seg = node->GetData();
//                  wxPoint cd = vp->GetMercatorPixFromLL(seg->py2, seg->px2);
//                  wxPoint cd(0,0);
				  wxPoint cd;
				  GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);
                  pPoints[ip++] = cd;

                  node=node->GetNext();
            }

void cbGCUpdatesMgr::DoRepositionItems( wxList& items )
{
    wxNode* pNode1 = items.GetFirst();

    while( pNode1 )
    {
        cbRectInfo& info = node_to_rect_info( pNode1 );

        wxNode* pNode2 = items.GetFirst();

        // and node itself

        mGC.AddObject( &info );

        while( pNode2 )
        {
            if ( pNode2 != pNode1 ) // node should not depend on itself
            {
                // Add references to objects on which this object
                // depends. Dependency here indicates intersection of current
                // bounds of this object with the initial bounds of the
                // other object.

                cbRectInfo& otherInfo = node_to_rect_info( pNode2 );

                if ( rect_hits_rect( *info.mpCurBounds, *otherInfo.mpPrevBounds ) )
                
                                    // the node    depends on node
                    mGC.AddDependency( &info,      &otherInfo      );
            }

            pNode2 = pNode2->GetNext();
        }

        pNode1 = pNode1->GetNext();
    }

    mGC.ArrangeCollection(); // order nodes according "least-dependency" rule,
                             // and find out cycled chains

    // Regular item nodes need to be resized, but not repainted (since
    // they stand in linear (not cyclic) dependency with other
    // regular nodes).

    wxNode* pNode = mGC.GetRegularObjects().GetFirst();

    while ( pNode )
    {
        cbRectInfo& info = *((cbRectInfo*)gc_node_to_obj(pNode));

        if ( info.mpBar == NULL ) 
            
            mpLayout->PositionClientWindow();
        else
            info.mpPane->SizeBar( info.mpBar );

        pNode = pNode->GetNext();
    }

    // cycled item nodes, need to be both resized and repainted

    pNode = mGC.GetCycledObjects().GetFirst();

    while ( pNode )
    {
        cbRectInfo& info = *((cbRectInfo*)gc_node_to_obj(pNode));

        if ( info.mpBar == NULL ) 
        {
            wxWindow* pClntWnd = mpLayout->GetFrameClient();

            mpLayout->PositionClientWindow();

            // FIXME FIXME:: excessive!

            pClntWnd->Show( false );
            pClntWnd->Show( true  );

            // OLD STUFF:: mpLayout->PositionClientWindow();
        }
        else
        if ( info.mpBar->mpBarWnd )
        {
            wxWindow* pWnd = info.mpBar->mpBarWnd;

            // resize
            info.mpPane->SizeBar( info.mpBar );

            // repaint

            /* OLD STUFF:: bool isChoice = info.mpBar->IsKindOf( CLASSINFO( wxChoice ) );

            //#ifdef __WINDOWS__
            //int result = ::SendMessage( (HWND)pWnd->m_hWnd, WM_NCPAINT, 0, 0 );
            //#endif
            */

            // FIXME FIXME:: there's no other way to repaint non-client area of the wxWindow!!
            //                 so we do *excessive* "hide 'n show"

//.........这里部分代码省略.........

//---------------------------------------------------------------
void IsoLine::drawIsoLine(GRIBOverlayFactory *pof, wxDC &dc, PlugIn_ViewPort *vp, bool bShowLabels, bool bHiDef)
{
      int nsegs = trace.size();
      if(nsegs < 1)
            return;

      GetGlobalColor ( _T ( "UITX1" ), &isoLineColor );
      wxPen ppISO ( isoLineColor, 2 );

#if wxUSE_GRAPHICS_CONTEXT
      wxMemoryDC *pmdc;
//      pmdc = dynamic_cast<wxMemoryDC*>(&dc);
      pmdc= wxDynamicCast(&dc, wxMemoryDC);
      wxGraphicsContext *pgc = wxGraphicsContext::Create(*pmdc);
      pgc->SetPen(ppISO);
#endif

      dc.SetPen(ppISO);



      std::list<Segment *>::iterator it;

    //---------------------------------------------------------
    // Dessine les segments
    //---------------------------------------------------------
    for (it=trace.begin(); it!=trace.end(); it++)
    {
        Segment *seg = *it;

        {
 //             wxPoint ab = vp->GetMercatorPixFromLL(seg->py1, seg->px1);
 //             wxPoint cd = vp->GetMercatorPixFromLL(seg->py2, seg->px2);
            wxPoint ab;
            GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
            wxPoint cd;
            GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);


///            ClipResult res = cohen_sutherland_line_clip_i ( &ab.x, &ab.y, &cd.x, &cd.y,
///                         0, vp->pix_width, 0, vp->pix_height );
///            if ( res != Invisible )
             {
#if wxUSE_GRAPHICS_CONTEXT
                  if(bHiDef && pgc)
                        pgc->StrokeLine(ab.x, ab.y, cd.x, cd.y);
                  else 
                        dc.DrawLine(ab.x, ab.y, cd.x, cd.y);
#else
                  dc.DrawLine(ab.x, ab.y, cd.x, cd.y);
#endif
             }

        }
    }
//#endif

      int text_sx, text_sy;
      dc.GetTextExtent(_T("10000"), &text_sx, &text_sy);
//      double m = text_sy / 2;
      int label_size = text_sx;
      int label_space = 400;
//      double coef = .01;
      int len = label_space/4;

      //    Allocate an array big enough
      wxPoint *pPoints = new wxPoint[nsegs+1];

      MySegListList::Node *listnode;
      listnode = m_SegListList.GetFirst();
      while(listnode)
      {
            MySegList *listsort = listnode->GetData();

            //    Fill in the array
            MySegList::Node *node;
            Segment *seg;

            node = listsort->GetFirst();
            if(node)
            {
                  seg = node->GetData();
//                  wxPoint ab = vp->GetMercatorPixFromLL(seg->py1, seg->px1);
//                  wxPoint ab(0,0);
				  wxPoint ab;
				  GetCanvasPixLL(vp, &ab, seg->py1, seg->px1);
                  pPoints[0] = ab;
            }
            int ip=1;

            while (node)
            {
                  seg = node->GetData();
//                  wxPoint cd = vp->GetMercatorPixFromLL(seg->py2, seg->px2);
//                  wxPoint cd(0,0);
				  wxPoint cd;
				  GetCanvasPixLL(vp, &cd, seg->py2, seg->px2);
                  pPoints[ip++] = cd;

//.........这里部分代码省略.........