mime for drag and drop, not finished

qgis · Jun 14, 2011 · 27db9c3 · 27db9c3
1 parent 2670283
commit 27db9c3
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Showing 3 changed files with 47 additions and 1 deletion.
diff --git a/src/browser/qgsbrowserbase.ui b/src/browser/qgsbrowserbase.ui
@@ -45,6 +45,12 @@
          <verstretch>0</verstretch>
         </sizepolicy>
        </property>
+       <property name="dragEnabled">
+        <bool>true</bool>
+       </property>
+       <property name="dragDropMode">
+        <enum>QAbstractItemView::DragOnly</enum>
+       </property>
       </widget>
       <widget class="QTabWidget" name="tabWidget">
        <property name="enabled">

diff --git a/src/browser/qgsbrowsermodel.cpp b/src/browser/qgsbrowsermodel.cpp
@@ -80,7 +80,14 @@ Qt::ItemFlags QgsBrowserModel::flags( const QModelIndex & index ) const
   if ( !index.isValid() )
     return 0;
 
-  return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+  Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+
+  QgsDataItem* ptr = ( QgsDataItem* ) index.internalPointer();
+  if ( ptr->type() != QgsDataItem::Layer )
+  {
+    flags |= Qt::ItemIsDragEnabled;
+  }
+  return flags;
 }
 
 QVariant QgsBrowserModel::data( const QModelIndex & index, int role ) const
@@ -313,3 +320,31 @@ void QgsBrowserModel::connectItem( QgsDataItem* item )
   connect( item, SIGNAL( endRemoveItems() ),
            this, SLOT( endRemoveItems() ) );
 }
+
+QStringList QgsBrowserModel::mimeTypes() const
+{
+  QStringList types;
+  types << "text/uri-list";
+  return types;
+}
+
+QMimeData * QgsBrowserModel::mimeData(const QModelIndexList &indexes) const
+{
+  QMimeData *mimeData = new QMimeData();
+  QByteArray encodedData;
+
+  QDataStream stream(&encodedData, QIODevice::WriteOnly);
+
+  foreach (const QModelIndex &index, indexes) {
+    if (index.isValid()) {
+      QgsDataItem* ptr = ( QgsDataItem* ) index.internalPointer();
+      if ( ptr->type() != QgsDataItem::Layer ) continue;
+      QgsLayerItem *layer = ( QgsLayerItem* ) ptr;
+      QString text = layer->uri();
+      stream << text;
+    }
+  }
+
+  mimeData->setData("text/uri-list", encodedData);
+  return mimeData;
+}
diff --git a/src/browser/qgsbrowsermodel.h b/src/browser/qgsbrowsermodel.h
@@ -3,6 +3,7 @@
 
 #include <QAbstractItemModel>
 #include <QIcon>
+#include <QMimeData>
 
 #include "qgsdataitem.h"
 
@@ -41,6 +42,9 @@ class QgsBrowserModel : public QAbstractItemModel
     /** Returns the parent of the model item with the given index. If the item has no parent, an invalid QModelIndex is returned. */
     virtual QModelIndex parent( const QModelIndex & index ) const;
 
+    virtual QStringList mimeTypes() const;
+
+    QMimeData * mimeData(const QModelIndexList &indexes) const;
 
     bool hasChildren( const QModelIndex & parent = QModelIndex() ) const;
 
@@ -50,6 +54,7 @@ class QgsBrowserModel : public QAbstractItemModel
     void refresh( const QModelIndex& index = QModelIndex() );
 
     void connectItem( QgsDataItem * item );
+
   signals:
 
   public slots: