ENH: Basic implementation of otb::Wrapper::ListEditItemModel.

Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetListEditItemModel.h

@@ -58,6 +58,7 @@
 // External classes pre-declaration.
 namespace
 {
+
 }
 
 namespace otb
@@ -68,6 +69,7 @@ namespace Wrapper
 
 //
 // Internal classes pre-declaration.
+class StringListInterface;
 
 
 /*****************************************************************************/
@@ -81,7 +83,7 @@ namespace Wrapper
  * \brief WIP.
  */
 class OTBQtWidget_EXPORT ListEditItemModel :
-    public QObject
+    public QAbstractItemModel
 {
 
   /*-[ QOBJECT SECTION ]-----------------------------------------------------*/
@@ -90,6 +92,19 @@ class OTBQtWidget_EXPORT ListEditItemModel :
 
   /*-[ PUBLIC SECTION ]------------------------------------------------------*/
 
+//
+// Public types.
+public:
+
+  enum Columns
+  {
+    COLUMN_NONE = -1,
+    //
+    COLUMN_NAME = 0,
+    //
+    COLUMN_COUNT,
+  };
+
 //
 // Public methods.
 public:
@@ -100,6 +115,59 @@ public:
   /** \brief Destructor. */
   ~ListEditItemModel() ITK_OVERRIDE;
 
+  /** */
+  void SetStringList( StringListInterface * );
+
+  //
+  // QAbstractItemModel overloads.
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#columnCount
+   */
+  int columnCount( const QModelIndex & p = QModelIndex() ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#data
+   */
+  QVariant
+    data( const QModelIndex & index,
+	  int role = Qt::DisplayRole ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#flags
+   */
+  Qt::ItemFlags flags( const QModelIndex & index ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#hasChildren
+   */
+  bool hasChildren( const QModelIndex & p = QModelIndex() ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#headerData
+   */
+  QVariant headerData( int section,
+                               Qt::Orientation orientation,
+                               int role = Qt::DisplayRole ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#index
+   */
+  QModelIndex
+    index( int row,
+           int column,
+           const QModelIndex & p = QModelIndex() ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#parent
+   */
+  QModelIndex parent( const QModelIndex & index ) const ITK_OVERRIDE;
+
+  /**
+   * \see http://qt-project.org/doc/qt-4.8/qabstractitemmodel.html#rowCount
+   */
+  int rowCount( const QModelIndex & p = QModelIndex() ) const ITK_OVERRIDE;
+
   /*-[ PUBLIC SLOTS SECTION ]------------------------------------------------*/
 
 //
@@ -132,6 +200,8 @@ private:
 //
 // Private attributes.
 private:
+  /** */
+  StringListInterface * m_StringList;
 
   /*-[ PRIVATE SLOTS SECTION ]-----------------------------------------------*/
 

Modules/Wrappers/QtWidget/src/otbWrapperQtWidgetListEditItemModel.cxx

@@ -37,8 +37,8 @@
 //
 // OTB includes (sorted by alphabetic order)
 
-//
-// Monteverdi includes (sorted by alphabetic order)
+#include "otbWrapperStringListInterface.h"
+
 
 namespace otb
 {
@@ -60,6 +60,13 @@ namespace Wrapper
 
 namespace
 {
+
+const char * const
+HEADERS[ ListEditItemModel::COLUMN_COUNT ] =
+{
+  QT_TRANSLATE_NOOP( "otb::Wrapper::ListEditItemModel", "Name" ),
+};
+
 } // end of anonymous namespace.
 
 
@@ -73,7 +80,8 @@ namespace
 /*******************************************************************************/
 ListEditItemModel
 ::ListEditItemModel( QObject * p ) :
-  QObject( p )
+  QAbstractItemModel( p ),
+  m_StringList( nullptr )
 {
 }
 
@@ -83,6 +91,218 @@ ListEditItemModel
 {
 }
 
+/*******************************************************************************/
+void
+ListEditItemModel
+::SetStringList( StringListInterface * stringList )
+{
+  m_StringList = stringList;
+}
+
+/*****************************************************************************/
+/* QAbstractItemModel overloads                                              */
+/*****************************************************************************/
+int
+ListEditItemModel
+::columnCount( const QModelIndex & ) const
+{
+  // qDebug() << this << "::columnCount(" << parent << ")";
+
+  return COLUMN_COUNT;
+}
+
+/*****************************************************************************/
+QVariant
+ListEditItemModel
+::data( const QModelIndex & idx, int role ) const
+{
+  // qDebug() << this << "::data(" << idx << "," << role << ")";
+
+  // Get layer.
+  assert( m_StringList!=NULL );
+
+  assert( idx.isValid() );
+  assert( !idx.parent().isValid() );
+  assert( idx.internalPointer()!=NULL );
+
+  const StringListInterface * stringList =
+    static_cast< const StringListInterface * >( idx.internalPointer() );
+
+  assert( stringList!=nullptr );
+
+  // Return data given role.
+  switch( role )
+    {
+    case Qt::CheckStateRole:
+      if( idx.column()!=COLUMN_NAME )
+        return QVariant();
+      else
+	{
+	assert( idx.row() >= 0 );
+	return stringList->IsActive( idx.row() );
+	}
+      break;
+
+    case Qt::DisplayRole:
+      switch( idx.column() )
+        {
+        case COLUMN_NAME:
+	  assert( idx.row() >= 0 );
+	  return
+	    QFile::decodeName(
+	      stringList->GetNthFileName( idx.row() ).c_str()
+	    );
+          break;
+
+	default:
+	  break;
+        }
+      break;
+
+    case Qt::FontRole:
+      break;
+
+    case Qt::ToolTipRole:
+      switch( idx.column() )
+	{
+	case COLUMN_NAME:
+	  assert( idx.row() >= 0 );
+	  return QString::fromStdString( stringList->GetToolTip( idx.row() ) );
+	  break;
+	}
+      break;
+
+    default:
+      break;
+    }
+
+  return QVariant();
+}
+
+/*****************************************************************************/
+Qt::ItemFlags
+ListEditItemModel
+::flags( const QModelIndex & idx ) const
+{
+  if( !idx.isValid() )
+    return QAbstractItemModel::flags( idx );
+
+  Qt::ItemFlags iflags =
+    QAbstractItemModel::flags( idx )
+    // | Qt::ItemIsDragEnabled
+    // | Qt::ItemIsDropEnabled
+    ;
+
+  if( idx.column()==COLUMN_NAME )
+    iflags |=
+        Qt::ItemIsUserCheckable
+      | Qt::ItemIsEditable
+      // | Qt::ItemIsDragEnabled
+      ;
+
+  return iflags;
+}
+
+/*****************************************************************************/
+bool
+ListEditItemModel
+::hasChildren( const QModelIndex & idx ) const
+{
+  return !idx.isValid();
+}
+
+/*****************************************************************************/
+QVariant
+ListEditItemModel
+::headerData( int section,
+              Qt::Orientation /**orientation*/,
+              int role ) const
+{
+  // qDebug()
+  //   << this << "::headerData("
+  //   << section << "," << orientation << "," << role
+  //   << ")";
+
+  // assert( orientation==Qt::Horizontal );
+
+  switch( role )
+    {
+    case Qt::DisplayRole:
+      assert( section>=0 && section<COLUMN_COUNT );
+      return tr( HEADERS[ section ] );
+      break;
+
+    default:
+      break;
+    }
+
+  return QVariant();
+}
+
+/*****************************************************************************/
+QModelIndex
+ListEditItemModel
+::index( int row,
+         int column,
+         const QModelIndex & p ) const
+{
+  // qDebug()
+  //   << this << "::index(" << row << "," << column << "," << parent << ")";
+
+  if( m_StringList == nullptr )
+    return QModelIndex();
+
+  // qDebug()
+  //   << "index:" << row << "," << column << "," << m_StringList->At( row );
+
+  assert( row>=0 && column>=0 );
+
+#if 0
+  AbstractLayerModel * layer = m_StringList->At( row );
+
+  if( layer==NULL || p.isValid() )
+    return QModelIndex();
+#endif
+
+  return
+    createIndex(
+      row,
+      column,
+      p.isValid()
+      ? NULL
+      : m_StringList
+    );
+}
+
+/*****************************************************************************/
+QModelIndex
+ListEditItemModel
+::parent( const QModelIndex & ) const
+{
+  // qDebug() << this << "::parent(" << index << ")";
+
+  return QModelIndex();
+}
+
+/*****************************************************************************/
+int
+ListEditItemModel
+::rowCount( const QModelIndex & p ) const
+{
+  // qDebug() << this << "::rowCount(" << p << ")";
+
+  // qDebug() << "row-count:" <<
+  //   ( ( m_StringList==NULL || p.isValid() )
+  //     ? 0
+  //     : m_StringList->GetCount()
+  //   );
+
+  return
+    ( m_StringList==nullptr || p.isValid() )
+    ? 0
+    : m_StringList->Size();
+}
+
 /*******************************************************************************/
 /* SLOTS                                                                       */
 /*******************************************************************************/