Add lib/libkdchart

2012-02-11 14:34:29 +01:00
parent 67e00fcaa1
commit 9e1686bd6e
278 changed files with 221 additions and 13 deletions
--- a/lib/libkdchart/src/KDChartAbstractProxyModel.cpp
+++ b/lib/libkdchart/src/KDChartAbstractProxyModel.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+** Copyright (C) 2001-2011 Klaralvdalens Datakonsult AB.  All rights reserved.
+**
+** This file is part of the KD Chart library.
+**
+** Licensees holding valid commercial KD Chart licenses may use this file in
+** accordance with the KD Chart Commercial License Agreement provided with
+** the Software.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 and version 3 as published by the
+** Free Software Foundation and appearing in the file LICENSE.GPL.txt included.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** Contact info@kdab.com if any conditions of this licensing are not
+** clear to you.
+**
+**********************************************************************/
+
+#include "KDChartAbstractProxyModel.h"
+
+#include <QDebug>
+
+#include <KDABLibFakes>
+
+
+namespace KDChart {
+
+  /** This is basically KDAbstractProxyModel, but only the
+      bits that we really need from it */
+AbstractProxyModel::AbstractProxyModel(QObject* parent) 
+  : QAbstractProxyModel(parent) {}
+
+// Think this is ugly? Well, it's not from me, it comes from QProxyModel
+struct KDPrivateModelIndex
+{
+  int r, c;
+  void *p;
+  const QAbstractItemModel *m;
+};
+
+QModelIndex AbstractProxyModel::mapFromSource( const QModelIndex & sourceIndex ) const
+{
+  if ( !sourceIndex.isValid() )
+    return QModelIndex();
+  //qDebug() << "sourceIndex.model()="<<sourceIndex.model();
+  //qDebug() << "model()="<<sourceModel();
+  Q_ASSERT( sourceIndex.model() == sourceModel() );
+
+  // Create an index that preserves the internal pointer from the source;
+  // this way AbstractProxyModel preserves the structure of the source model
+  return createIndex( sourceIndex.row(), sourceIndex.column(), sourceIndex.internalPointer() );
+}
+
+QModelIndex AbstractProxyModel::mapToSource( const QModelIndex &proxyIndex ) const
+{
+  if ( !proxyIndex.isValid() )
+    return QModelIndex();
+  if( proxyIndex.model() != this )
+    qDebug() << proxyIndex.model() << this;
+  Q_ASSERT( proxyIndex.model() == this );
+  // So here we need to create a source index which holds that internal pointer.
+  // No way to pass it to sourceModel()->index... so we have to do the ugly way:
+  QModelIndex sourceIndex;
+  KDPrivateModelIndex* hack = reinterpret_cast<KDPrivateModelIndex*>(&sourceIndex);
+  hack->r = proxyIndex.row();
+  hack->c = proxyIndex.column();
+  hack->p = proxyIndex.internalPointer();
+  hack->m = sourceModel();
+  Q_ASSERT( sourceIndex.isValid() );
+  return sourceIndex;
+}
+
+QModelIndex AbstractProxyModel::index( int row, int col, const QModelIndex& index ) const
+{
+    Q_ASSERT(sourceModel());
+    return mapFromSource(sourceModel()->index( row, col, mapToSource(index) ));
+}
+
+QModelIndex AbstractProxyModel::parent( const QModelIndex& index ) const
+{
+    Q_ASSERT(sourceModel());
+    return mapFromSource(sourceModel()->parent( mapToSource(index) ));
+}
+
+}