X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=src%2FcreaImageIOWxGimmick.cpp;h=3ad5e81280ede7cdd930ffcaab3ae209e648a723;hb=26963d13f31f98807176a062b1d2c209df9c7869;hp=7bfed5b624ed7a85adf498ebb648410652db836e;hpb=684add23b4f64cb3c6e39e12a4af20d2c2500df6;p=creaImageIO.git

diff --git a/src/creaImageIOWxGimmick.cpp b/src/creaImageIOWxGimmick.cpp
index 7bfed5b..3ad5e81 100644
--- a/src/creaImageIOWxGimmick.cpp
+++ b/src/creaImageIOWxGimmick.cpp
@@ -19,7 +19,8 @@
 #include <vtkCamera.h>
 #include <vtkRenderer.h>
 
-#include<wx/filefn.h>
+#include <wx/filefn.h>
+//#include <wx/tipwin.h>
 
 using namespace crea;
 
@@ -209,18 +210,6 @@ namespace creaImageIO
 
 
 
-  //================================================================
-  class WxGimmickSettingsDialog : public wxDialog
-  {
-  public:
-    WxGimmickSettingsDialog(wxWindow *parent);
-    ~WxGimmickSettingsDialog();
-    
-    
-  };
-  //================================================================
-
-
 
 
 
@@ -255,14 +244,26 @@ namespace creaImageIO
   //================================================================
   //================================================================
   WxGimmick::WxGimmick(wxWindow *parent, 
-						   wxWindowID id,
-						   const wxPoint& pos,
-						   const wxSize& size,
-						   int threads)
+		       wxWindowID id,
+		       const wxPoint& pos,
+		       const wxSize& size,
+		       int image_type,
+		       int threads)
     : wxPanel(parent,id,pos,size),
+      mSelectionType(image_type),
       mSaveConfigurationOnClose(true),
       mReader(threads)
   {
+    // Initialize image size corresponding to current selection
+    switch (mSelectionType) 
+      {
+      case GIMMICK_2D_IMAGE_SELECTION : mSelectionMaxImageDimension = 2; break;
+      case GIMMICK_3D_IMAGE_SELECTION : mSelectionMaxImageDimension = 3; break;
+      case GIMMICK_4D_IMAGE_SELECTION : mSelectionMaxImageDimension = 4; break;
+      default : mSelectionMaxImageDimension = 0;
+      }
+
+
     // Start the threads ...
     mReader.Start();
 
@@ -333,9 +334,15 @@ namespace creaImageIO
     // Image sizer
     wxBoxSizer *isizer = new wxBoxSizer(wxHORIZONTAL  );
     mPanelImage->SetSizer( isizer ); 
-  
+ 
+    // Notebook
+    mwxNotebook = new wxNotebook(mSplitter2,
+				 -1,wxDefaultPosition, wxDefaultSize, 0);
+
+
+    
     // Fields view (bottom)
-    mFieldsView = new WxGimmickFieldsView(mSplitter2,-1,
+    mFieldsView = new WxGimmickFieldsView(mwxNotebook,-1,
 					    wxDefaultPosition,
 					    wxDefaultSize,0);
 
@@ -350,16 +357,20 @@ namespace creaImageIO
 	GetSettings().BgColour(DicomNode::Series),
 	GetSettings().Colour(DicomNode::Image),
 	GetSettings().BgColour(DicomNode::Image));
+    mwxNotebook->AddPage( mFieldsView, _T("Dicom fields"));
     
-    
-
+    // Help 
+    mHelp = new WxGimmickHelp(mwxNotebook);
+    mwxNotebook->AddPage( mHelp, _T("Help"));    
+ 
+    // Splitting
     int wsize = size.GetWidth();
     int hsize = size.GetHeight();
     int previewhsize = 150;
     int previewwsize = 400;
 
     mSplitter2->SetMinimumPaneSize( previewhsize );
-    mSplitter2->SplitHorizontally( mPanelImage, mFieldsView, 
+    mSplitter2->SplitHorizontally( mPanelImage, mwxNotebook, //mFieldsView, 
 				   hsize - previewhsize);
   
     rsizer->Add( mSplitter2,1,wxGROW  ,0);
@@ -369,7 +380,7 @@ namespace creaImageIO
     rpanel->Layout(); 
   
     // previewer
-    mInteractor = new wxVTKRenderWindowInteractor(mPanelImage,-1);
+	mInteractor = new crea::creawxVTKRenderWindowInteractor(mPanelImage,-1);
     mInteractor->UseCaptureMouseOn();	
   
     mViewer	= vtkImageViewer2::New();
@@ -399,6 +410,16 @@ namespace creaImageIO
 
     ShowImage(mReader.GetImage(""));
 
+    // Show help if no collection
+    if (GetDicomDatabaseList().size()==0)
+      {
+	mwxNotebook->SetSelection(1);
+      } 
+    else
+      {
+	mwxNotebook->SetSelection(0);
+      }
+    //    mJustStarted = true;
   }
   //================================================================
     
@@ -847,6 +868,9 @@ namespace creaImageIO
 	boost::filesystem::change_extension(filepath,GetDatabaseExtension());
 	if ( boost::filesystem::exists(filepath) )
 	  {
+		  boost::filesystem::remove(filepath);	
+			  /* 
+			  LG : works on Linux but not Windows :
 	    if ( ! boost::filesystem::remove(filepath) )
 	      {
 		wxMessageBox(_T("Could not overwrite ")
@@ -854,8 +878,10 @@ namespace creaImageIO
 			     _T("Error"),
 			     wxOK,this);
 		return;
+		
 	
 	      }
+		  */
 	  }
       }
     
@@ -891,9 +917,11 @@ namespace creaImageIO
 	  }
       }
 
+    if (GetDicomDatabaseList().size()==0) mFieldsView->UpdateFields(db);
     GetDicomDatabaseList().push_back(db);
     UpdateDicomDatabaseView(db);
 
+
   }
   //================================================================
 
@@ -904,7 +932,8 @@ namespace creaImageIO
     wxBusyCursor busy;
     //    std::cout << "WxGimmick : Reading config"<<std::endl;
 
-    //    std::cout << "==> Loading collections from '"<<mDatabaseListFile
+    //    std::cout <<     
+    creaMessage("Gimmick!",1,"Gimmick! : ==> Loading collections from '"<<mDatabaseListFile<<"'"<<std::endl);
     //	      <<"'"<<std::endl;
 
     std::ifstream s;
@@ -941,7 +970,7 @@ namespace creaImageIO
 	      }
 	    else 
 	      {
-		//	    std::cout << "    ... ERROR !"<<std::endl;
+		creaMessage("Gimmick!",1,"           ==> ERROR opening collection '"<<tokens[0]<<"'"<<std::endl);
 		delete db;
 	      }
 	  }
@@ -949,7 +978,7 @@ namespace creaImageIO
 	}
 	else 
 	{
-		std::cout << "ERROR opening "<<mDatabaseListFile<<std::endl;
+	  creaMessage("Gimmick!",1,"           ==> File does not exist. It will be created on exit (if you already ran Gimmick! and exited normally, this is not normal. Send a bug report).");
 	}
 
 	
@@ -1023,6 +1052,54 @@ namespace creaImageIO
   }
   //================================================================
 
+  //================================================================
+  void WxGimmick::LoadChildren(wxTreeItemId& id)
+  {
+    TreeItemData *item = (TreeItemData *)mTreeListCtrl->GetItemData(id);
+    if (item)
+      {
+	if ( ( item->IsDicomNode() || item->IsDatabase() ) &&
+	     ( ! item->GetDicomNode()->ChildrenLoaded() ) )
+	  {
+	    
+	    // If children not already loaded : do it 
+	    if (
+		item->GetDicomNode()->GetDicomDatabase()->DBLoadChildren
+		(item->GetDicomNode(),item->GetDicomNode()->GetType()+1)
+		> 0 )
+	      {
+		// Some new children loaded
+		// Sort them
+		if (mSettings.HasActiveComparator
+		    (item->GetDicomNode()->GetType()+1))
+		  {
+		    /*			std::cout << "Sorting using '"
+		      << mSettings.GetActiveComparator
+		      (item->GetDicomNode()->GetType()+1).GetName() 
+		      << "' ... ";
+		    */
+		    item->GetDicomNode()->SortChildren
+		      ( mSettings.GetActiveComparator
+			(item->GetDicomNode()->GetType()+1)
+			);
+		    //			std::cout << "ok"<<std::endl;
+		  }
+		// Update tree
+		DicomNode::ChildrenListType::iterator i;
+		for (i=item->GetDicomNode()->GetChildrenList().begin();
+		     i!=item->GetDicomNode()->GetChildrenList().end();
+		     i++)
+		  {
+		    UpdateDicomNodeView(*i,id);
+		  }
+	      }
+	    // EO If children not already loaded 
+	  }
+      } 
+  }
+  //================================================================
+
+
   //================================================================
   void WxGimmick::OnItemExpanded(wxTreeEvent& event)                   
   {
@@ -1033,7 +1110,10 @@ namespace creaImageIO
     wxBusyCursor busy;
     
     wxTreeItemId itemId = event.GetItem();
- 
+    LoadChildren(itemId);
+    
+    return;
+
     // expand if collapsed and collapse if expanded ...
     TreeItemData *item = 
       (TreeItemData *)mTreeListCtrl->GetItemData(itemId);
@@ -1230,8 +1310,9 @@ namespace creaImageIO
 	  }
 	if (data->IsDicomNode())
 	  {
-	    /*
+	    
 	    //	    LG : BUGGY
+	    /*
 	    std::string str("&Remove ");
 	    str += data->GetDicomNode()->GetTypeName();
 	    menu.Append(PopUp_Remove, std2wx(str));
@@ -1366,7 +1447,7 @@ namespace creaImageIO
   // Pop up menu callbacks
   void  WxGimmick::OnPopUpAbout(wxCommandEvent& event)
   {
-    wxMessageBox( _T("Give me my medical images quick ! \n\n  (c) CREATIS-LRMN 2008\n"),
+    wxMessageBox( _T("Give me my medical images quick ! \n\n  (c) CREATIS-LRMN 2008\n      laurent.guigues@creatis.insa-lyon.fr"),
 		  _T("Gimmick!"),
 		  wxOK | wxICON_INFORMATION, this);
   }
@@ -1376,7 +1457,7 @@ namespace creaImageIO
   void  WxGimmick::OnPopUpSettings(wxCommandEvent& event)
   {
     WxGimmickSettingsDialog* s = 
-      new WxGimmickSettingsDialog(this);
+      new WxGimmickSettingsDialog(this,&mSettings);
     s->ShowModal();
     delete s;
   }
@@ -1725,25 +1806,111 @@ namespace creaImageIO
   }
   //=================================================
 
+
+
+
+
+
+
+
+  //================================================================
+  bool WxGimmick::IsImageSelectable(DicomNode* node)                   
+  {
+    int rows = node->ImageGetRows();
+    int cols = node->ImageGetColumns();
+    int frms = node->ImageGetFrames();
+    
+    //    std::cout << "R/C/F = " << rows << "/"<< cols <<"/"<<frms<<std::endl;
+
+    int dim = 0;
+    if (frms>0) dim=3;
+    else if (cols>0) dim=2;
+    else if (rows>0) dim=1;
+    
+    if (dim == 0) 
+      {
+	std::cout << "Unknown image dimension : cannot select !" 
+		  << std::endl;
+	return false;
+      }
+    else if (dim>mSelectionMaxImageDimension)
+      {
+	std::cout << "Selecting "<<dim<<"D images is not allowed !" 
+		  << std::endl;
+	return false;
+      }
+    
+    if ( mTreeListCtrl->GetSelectionSize() == 0 ) 
+      {
+	mCurrentSelectionImageSize[0] = cols;
+	mCurrentSelectionImageSize[1] = rows;
+	mCurrentSelectionImageSize[2] = frms;
+	return true;
+      }
+    else 
+      {
+	if ( dim == mSelectionMaxImageDimension )
+	  {
+	    std::cout << "Cannot add this image to selection : would result in a "<<dim+1<<"D image !" << std::endl;
+	    return false;
+	  }
+	if ( ( cols != mCurrentSelectionImageSize[0] ) ||
+	     ( rows != mCurrentSelectionImageSize[1] ) ||
+	     ( frms != mCurrentSelectionImageSize[2] ) )
+	  {
+	    std::cout << "Cannot add this image to selection : image size is incomptatible with currently selected images" << std::endl; 
+	    return false;
+	  }
+      }
+    //    std::cout << "Selecting : "<<node->ImageGetFullFileName() << std::endl;
+    return true;
+  }
+  //================================================================
+
   //================================================================
   void WxGimmick::OnSelChanging(wxTreeEvent& event)                   
   {
+    event.Veto();
     wxTreeItemId id = event.GetItem();
     if (!id.IsOk()) 
       {
-	std::cout << "ERROR : ID NOT OK"<<std::endl;
+	std::cout << "INTERNAL ERROR : ID NOT OK"<<std::endl;
 	return;
       }
 
-    TreeItemData *data = (TreeItemData *)mTreeListCtrl->GetItemData(id);
 
-    event.Veto();
+    TreeItemData *data = (TreeItemData *)mTreeListCtrl->GetItemData(id);
     if (data->IsDicomNode())
       {
-	if ((data->GetDicomNode()>0)&&
-	    ( data->GetDicomNode()->GetType()==DicomNode::Image))
+	if (data->GetDicomNode()>0)
 	  {
-	    event.Allow();
+	    // An image was selected 
+	    if (data->GetDicomNode()->GetType()==DicomNode::Image)
+	      {
+		if (IsImageSelectable(data->GetDicomNode())) event.Allow();
+	      }
+	    // A series was selected 
+	    else if (data->GetDicomNode()->GetType()==DicomNode::Series)
+	      {
+		// If images not loaded do it 
+		LoadChildren(id);
+		// can be selected if all its images can
+		wxTreeItemId child;
+		wxTreeItemIdValue cookie;
+		for (child = mTreeListCtrl->GetFirstChild(id,cookie);
+		     child.IsOk();
+		     child = mTreeListCtrl->GetNextChild(id,cookie))
+		  {    
+		    TreeItemData *cdata = 
+		      (TreeItemData *)mTreeListCtrl->GetItemData(child);
+		    if ((cdata->IsDicomNode())&&
+			(cdata->GetDicomNode()>0)&&
+			(cdata->GetDicomNode()->GetType()==DicomNode::Image)&&
+			(!IsImageSelectable(cdata->GetDicomNode())))
+		      return;
+		  }
+		event.Allow();
+	      }
 	  }
       }
   }
@@ -1817,9 +1984,9 @@ namespace creaImageIO
 		//				  << nsib->GetFieldValue("FullFileName")
 		//				  << "' prio="<<prio<<std::endl;
 		mReader.Request(this,
-				nsib->GetFieldValue("FullFileName"), 
+				nsib->ImageGetFullFileName(), 
 				prio);
-		mImageFileNameToNode[nsib->GetFieldValue("FullFileName")] =
+		mImageFileNameToNode[nsib->ImageGetFullFileName()] =
 		  nsib;
 		prio--;
 	      }
@@ -1836,9 +2003,9 @@ namespace creaImageIO
 		//				  << nsib->GetFieldValue("FullFileName")
 		//				  << "' prio="<<prio<<std::endl;
 		mReader.Request(this,
-				nsib->GetFieldValue("FullFileName"), 
+				nsib->ImageGetFullFileName(), 
 				prio);
-		mImageFileNameToNode[nsib->GetFieldValue("FullFileName")] =
+		mImageFileNameToNode[nsib->ImageGetFullFileName()] =
 		  nsib;
 		prio--;
 	      }
@@ -1995,13 +2162,29 @@ namespace creaImageIO
   void  WxGimmick::OnInternalIdle()
   {
     ProcessImageEvents();
+    /*
+    if (mJustStarted)
+      {
+
+	mJustStarted = false;
+	}
+    */
+    //
   }
   //================================================================
  
 
+  //================================================================
+  // LG : For the moment any selection is valid but in the future 
+  // incomplete selections can be invalid...
+  bool WxGimmick::IsSelectionValid() 
+  { 
+    return (mTreeListCtrl->GetSelectionSize()>0); 
+  } 
+  //================================================================
 
   //================================================================
-  void WxGimmick::GetSelectedImages(std::vector<std::string>& f)
+  void WxGimmick::GetSelectedFiles(std::vector<std::string>& f)
   {
     wxArrayTreeItemIds id;
     // TO DO : TEST THAT STYLE IS MULTIPLE 
@@ -2015,7 +2198,7 @@ namespace creaImageIO
 	  {
 	    if (data->GetDicomNode()->GetType()==DicomNode::Image)
 	      {
-		f.push_back ( data->GetDicomNode()->GetFieldValue("FullFileName") );
+		f.push_back ( data->GetDicomNode()->ImageGetFullFileName() );
 	      }
 	    else if (data->GetDicomNode()->GetType()==DicomNode::Series)
 	      {
@@ -2024,7 +2207,7 @@ namespace creaImageIO
 		     j!=data->GetDicomNode()->GetChildrenList().end();
 		     j++) 
 		  {
-		    f.push_back((*j)->GetFieldValue("FullFileName"));
+		    f.push_back((*j)->ImageGetFullFileName());
 		  }
 	      }
 	  }
@@ -2032,6 +2215,122 @@ namespace creaImageIO
   }
   //================================================================
 
+  //================================================================
+  void WxGimmick::GetSelectedImages(std::vector<vtkImageData*>& f)
+  {
+    wxArrayTreeItemIds id;
+    // TO DO : TEST THAT STYLE IS MULTIPLE 
+    unsigned int nb = mTreeListCtrl->GetSelections(id);
+    f.clear();
+
+    // Collect the brute vector of Image nodes
+    std::vector<DicomNode*> im;
+    for (unsigned int i=0; i<nb; ++i)
+      {
+	TreeItemData *data = 
+	  (TreeItemData *)mTreeListCtrl->GetItemData(id[i]);
+	if ((data) && (data->IsDicomNode()))
+	  {
+	    if (data->GetDicomNode()->GetType()==DicomNode::Image)
+	      {
+		im.push_back ( data->GetDicomNode() );
+
+	      }
+	    else if (data->GetDicomNode()->GetType()==DicomNode::Series)
+	      {
+		DicomNode::ChildrenListType::iterator j;
+		for (j =data->GetDicomNode()->GetChildrenList().begin();
+		     j!=data->GetDicomNode()->GetChildrenList().end();
+		     j++) 
+		  {
+		    im.push_back ( *j );
+		  }
+	      }
+	  }
+      }
+    // Create the output data
+    if (im.size()==1) 
+      {
+	// Only one image : give it
+	vtkImageData* out = vtkImageData::New();
+	out->ShallowCopy(mReader.GetImage(im.front()->ImageGetFullFileName()));
+	f.push_back( out );
+      }
+    else if (im.size()>1)
+      {
+	vtkImageData* first = mReader.GetImage( im.front()->ImageGetFullFileName() );
+	if (first->GetDataDimension()==2) 
+	  {   	
+	    // n2D to 3D
+	    vtkImageData* out = vtkImageData::New();
+	    out->CopyStructure(first);	
+	    out->SetScalarType(first->GetScalarType());
+	    int ext[6];
+	    first->GetExtent(ext);
+	    ext[5] = im.size();
+	    out->SetExtent(ext);
+	    // LG : TODO : Z Spacing  ?
+	    
+	    out->AllocateScalars();
+	    
+	    //first->Print(std::cout);
+	    //	    out->Print(std::cout);
+	    
+	    int dim[3];
+	    first->GetDimensions(dim);
+	    unsigned long imsize = 
+	      ( (unsigned long)first->GetScalarPointer(0,1,0)
+		- (unsigned long)first->GetScalarPointer(0,0,0))
+	      *dim[1];
+
+	    int slice = 0;
+	    std::vector<DicomNode*>::iterator it;
+	    for (it=im.begin(); it!=im.end(); ++it) 
+	      {
+		//std::cout << "copying slice "<<slice <<std::endl;
+		vtkImageData* cur = mReader.GetImage( (*it)->ImageGetFullFileName() );
+		
+		void* src = cur->GetScalarPointer(0,0,0);
+		void* dst = out->GetScalarPointer(0,0,slice);
+		//		std::cout << "src="<<src<<std::endl;
+		//		std::cout << "dst="<<dst<<std::endl;
+		//		std::cout << "siz="<<imsize<<std::endl;
+		memcpy(dst,src,imsize);
+
+		/*
+		// verif
+		int ii,jj;
+		for (ii=1;ii<4;ii++) {
+		  for (jj=1;jj<4;jj++) {
+		    int x = (int)(ii*dim[0] / 4);
+		    int y = (int)(jj*dim[1] / 4);
+		    std::cout << cur->GetScalarComponentAsFloat(x,y,0,0)
+			      << " vs "
+			      << out->GetScalarComponentAsFloat(x,y,slice,0)
+			      << std::endl;
+		  }
+		}
+		*/
+
+		slice++;
+	      }
+	    f.push_back(out);
+	  }
+	else 
+	  {
+	    // n3D
+	    std::vector<DicomNode*>::iterator it;
+	    for (it=im.begin(); it!=im.end(); ++it) 
+	      {
+		vtkImageData* out = vtkImageData::New();
+		out->ShallowCopy(mReader.GetImage((*it)->ImageGetFullFileName()));
+		f.push_back(out);
+	      }
+	  }
+      }
+  }
+  //================================================================
+
 
   //================================================================
   void WxGimmick::GetSelectedDicomNodes(std::vector<DicomNode*>& f)
@@ -2052,7 +2351,7 @@ namespace creaImageIO
 
 	if (data->GetDicomNode()->GetType()==DicomNode::Image)
 	{
-	f.push_back ( data->GetDicomNode() ); //->GetFieldValue("FullFileName") );
+	f.push_back ( data->GetDicomNode() ); //->ImageGetFullFileName() );
 	}  
 	else if (data->GetDicomNode()->GetType()==DicomNode::Series)
 	{
@@ -2061,8 +2360,7 @@ namespace creaImageIO
 	j!=data->GetDicomNode()->GetChildrenList().end();
 	j++) 
 	{
-	f.push_back((*j)); //->GetFieldValue("FullFileName"));
-	}
+	f.push_back((*j)); //->ImageGetFullFileName() );	}
 	}
 	}
 	*/
@@ -2477,10 +2775,19 @@ namespace creaImageIO
     }
 
 
-
-
-
-
+    //====================================================================
+    void WxGimmick::ShowHelp()
+    {
+      /*
+      if (mHelpWindow==0)
+	{
+	  mHelpWindow = new WxGimmickHelpWindow(this);
+	}
+      mHelpWindow->CenterOnParent();
+      mHelpWindow->ShowModal();
+      */
+    }
+    //====================================================================
 
 
 
@@ -2596,17 +2903,14 @@ namespace creaImageIO
 	  //================================================================
 	  //================================================================
 	  WxGimmickFrame::WxGimmickFrame( wxWindow *parent, 
-								      wxString title, 
-								      wxSize size)
+					  wxString title, 
+					  wxSize size)
 	    : wxFrame((wxFrame *)parent, -1, title, wxDefaultPosition, size)
 	    {	
 	      wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
-	      long style = wxTR_DEFAULT_STYLE |
-#ifndef NO_VARIABLE_HEIGHT
-		wxTR_HAS_VARIABLE_ROW_HEIGHT |
-#endif
-		wxTR_EDIT_LABELS | wxSUNKEN_BORDER;
-	      mWxGimmick = new WxGimmick(this,-1,wxDefaultPosition,wxDefaultSize,style);
+	      mWxGimmick = new WxGimmick(this,-1,
+					 wxDefaultPosition,
+					 wxDefaultSize);
 	      sizer->Add(mWxGimmick,1,wxGROW);
 	      SetSizer(sizer);
 	      SetAutoLayout(true);
@@ -2665,38 +2969,7 @@ namespace creaImageIO
 
 
 
-	      //================================================================
-	      //================================================================
-	      //================================================================
-	      //================================================================
-
-	      //================================================================
-	      WxGimmickSettingsDialog::WxGimmickSettingsDialog(wxWindow *parent)
-	      : 
-	      wxDialog( parent, 
-			-1, 
-			_T("Settings"),
-			wxDefaultPosition,
-			wxSize(400,400),
-			wxRESIZE_BORDER | 
-			wxSYSTEM_MENU  |
-			wxCLOSE_BOX |
-			wxMAXIMIZE_BOX | 
-			wxMINIMIZE_BOX | 
-			wxCAPTION  
-			)
-	      {
-	      } 
-	      //================================================================
-    
-	      //================================================================
-	      WxGimmickSettingsDialog::~WxGimmickSettingsDialog()
-		{
-		}
-	      //================================================================
-
-    
-
+