added context menu grouping and regrouping

Author: Arunmozhi

src/core/symbology-ng/qgsstylev2.cpp

@@ -406,7 +406,22 @@ bool QgsStyleV2::renameColorRamp( QString oldName, QString newName )
   return true;
 }
 
-QgsSymbolGroupMap QgsStyleV2::groupNames( QString parent )
+QStringList QgsStyleV2::groupNames()
+{
+  QStringList groupNames;
+  sqlite3_stmt *ppStmt;
+  const char *query = "SELECT * FROM symgroup;";
+  int nError = sqlite3_prepare_v2( mCurrentDB, query, -1, &ppStmt, NULL );
+  while ( nError == SQLITE_OK && sqlite3_step( ppStmt ) == SQLITE_ROW )
+  {
+    QString group = QString( reinterpret_cast<const char*>( sqlite3_column_text( ppStmt, SymgroupName ) ) );
+    groupNames.append( group );
+  }
+  sqlite3_finalize( ppStmt );
+  return groupNames;
+}
+
+QgsSymbolGroupMap QgsStyleV2::childGroupNames( QString parent )
 {
   // get the name list from the sqlite database and return as a QStringList
   if( mCurrentDB == NULL )
@@ -799,3 +814,19 @@ int QgsStyleV2::symbolId( QString name )
   sqlite3_finalize( ppStmt );
   return symbolid;
 }
+
+int QgsStyleV2::groupId( QString name )
+{
+  int groupid = 0;
+  char *query;
+  sqlite3_stmt *ppStmt;
+  QByteArray array = name.toUtf8();
+  query = sqlite3_mprintf( "SELECT id FROM symgroup WHERE name='%q';", array.constData() );
+  int nErr = sqlite3_prepare_v2( mCurrentDB, query, -1, &ppStmt, NULL );
+  if ( nErr == SQLITE_OK && sqlite3_step( ppStmt ) == SQLITE_ROW )
+  {
+    groupid = sqlite3_column_int( ppStmt, 0 );
+  }
+  sqlite3_finalize( ppStmt );
+  return groupid;
+}

src/core/symbology-ng/qgsstylev2.h

@@ -82,9 +82,15 @@ class CORE_EXPORT QgsStyleV2
     //! returns 0 if not found
     int symbolId( QString name );
 
-    //! return a map of all groupid and names for the given parent
-    //! Returns the First order groups when empty QString is passed
-    QgsSymbolGroupMap groupNames( QString parent = "" );
+    //! return the id in the style database for the given group name
+    int groupId( QString group );
+
+    //! return the all the groups in the style
+    QStringList groupNames();
+
+    //! return a map of groupid and names for the given parent
+    QgsSymbolGroupMap childGroupNames( QString parent = "" );
+
     //! returns the symbolnames of a given groupid
     QStringList symbolsOfGroup( int groupid );
     //! returns the symbol names with which have the given tag

src/gui/symbology-ng/qgsstylev2managerdialog.cpp

@@ -73,6 +73,7 @@ QgsStyleV2ManagerDialog::QgsStyleV2ManagerDialog( QgsStyleV2* style, QWidget* pa
 
   QStandardItemModel* model = new QStandardItemModel( listItems );
   listItems->setModel( model );
+  listItems->setSelectionMode( QAbstractItemView::ExtendedSelection );
 
   connect( model, SIGNAL( itemChanged( QStandardItem* ) ), this, SLOT( itemChanged( QStandardItem* ) ) );
   connect( listItems->selectionModel(), SIGNAL( currentChanged( const QModelIndex&, const QModelIndex& ) ),
@@ -91,7 +92,8 @@ QgsStyleV2ManagerDialog::QgsStyleV2ManagerDialog( QgsStyleV2* style, QWidget* pa
   }
   connect( groupTree->selectionModel(), SIGNAL( currentChanged( const QModelIndex&, const QModelIndex& ) ),
       this, SLOT( groupChanged( const QModelIndex& ) ) );
-  connect( groupModel, SIGNAL( itemChanged( QStandardItem* ) ), this, SLOT( groupRenamed( QStandardItem* ) ) );
+  connect( groupModel, SIGNAL( itemChanged( QStandardItem* ) ),
+      this, SLOT( groupRenamed( QStandardItem* ) ) );
 
   QMenu *groupMenu = new QMenu( "Group Actions" );
   QAction *groupSymbols = groupMenu->addAction( "Group Symbols" );
@@ -114,6 +116,11 @@ QgsStyleV2ManagerDialog::QgsStyleV2ManagerDialog( QgsStyleV2* style, QWidget* pa
   connect( groupTree, SIGNAL( customContextMenuRequested( const QPoint& ) ),
           this, SLOT( grouptreeContextMenu( const QPoint& ) ) );
 
+  // Context menu for listItems
+  listItems->setContextMenuPolicy( Qt::CustomContextMenu );
+  connect( listItems, SIGNAL( customContextMenuRequested( const QPoint& ) ),
+      this, SLOT( listitemsContextMenu( const QPoint& ) ) );
+
 }
 
 void QgsStyleV2ManagerDialog::onFinished()
@@ -639,7 +646,7 @@ void QgsStyleV2ManagerDialog::populateGroups()
 
 void QgsStyleV2ManagerDialog::buildGroupTree( QStandardItem* &parent )
 {
-  QgsSymbolGroupMap groups = mStyle->groupNames( parent->text() );
+  QgsSymbolGroupMap groups = mStyle->childGroupNames( parent->text() );
   QgsSymbolGroupMap::const_iterator i = groups.constBegin();
   while ( i != groups.constEnd() )
   {
@@ -860,6 +867,8 @@ void QgsStyleV2ManagerDialog::groupSymbolsAction()
         this, SLOT( groupRenamed( QStandardItem* ) ) );
     connect( model, SIGNAL( itemChanged( QStandardItem* ) ),
         this, SLOT( itemChanged( QStandardItem* ) ) );
+    // Reset the selection mode
+    listItems->setSelectionMode( QAbstractItemView::ExtendedSelection );
   }
   else
   {
@@ -904,6 +913,9 @@ void QgsStyleV2ManagerDialog::groupSymbolsAction()
     // Connect to slot which handles regrouping
     connect( model, SIGNAL( itemChanged( QStandardItem* )),
         this, SLOT( regrouped( QStandardItem* ) ) );
+
+    // No selection should be possible
+    listItems->setSelectionMode( QAbstractItemView::NoSelection );
   }
 }
 
@@ -1049,3 +1061,40 @@ void QgsStyleV2ManagerDialog::grouptreeContextMenu( const QPoint& point )
       removeGroup();
   }
 }
+
+void QgsStyleV2ManagerDialog::listitemsContextMenu( const QPoint& point )
+{
+  QPoint globalPos = listItems->viewport()->mapToGlobal( point );
+
+  QMenu *groupMenu = new QMenu( this );
+  QMenu *groupList = new QMenu( this );
+  groupList->setTitle( "Apply Group" );
+
+  QStringList groups = mStyle->groupNames();
+  foreach( QString group, groups )
+  {
+    groupList->addAction( group );
+  }
+  groupMenu->addMenu( groupList );
+
+  groupMenu->addAction( "Un-group" );
+
+  QAction* selectedItem = groupMenu->exec( globalPos );
+
+  if ( selectedItem )
+  {
+    int groupId = 0;
+    if ( selectedItem->text() != "Un-group" )
+    {
+      groupId = mStyle->groupId( selectedItem->text() );
+    }
+    QModelIndexList indexes =  listItems->selectionModel()->selection().indexes();
+    foreach( QModelIndex index, indexes )
+    {
+      mStyle->regroup( index.data().toString(), groupId );
+    }
+    populateList();
+
+    QgsDebugMsg( "Selected Action: " + selectedItem->text() );
+  }
+}

src/gui/symbology-ng/qgsstylev2managerdialog.h

@@ -72,6 +72,10 @@ class GUI_EXPORT QgsStyleV2ManagerDialog : public QDialog, private Ui::QgsStyleV
     //! Context menu for the groupTree
     void grouptreeContextMenu( const QPoint& );
 
+    //! Context menu for the listItems ( symbols list )
+    void listitemsContextMenu( const QPoint& );
+
+
   protected:
 
     //! populate combo box with known style items (symbols, color ramps)

src/gui/symbology-ng/qgssymbolslistwidget.cpp

@@ -51,7 +51,7 @@ QgsSymbolsListWidget::QgsSymbolsListWidget( QgsSymbolV2* symbol, QgsStyleV2* sty
 
   QStandardItemModel* model = new QStandardItemModel( viewSymbols );
   viewSymbols->setModel( model );
-  connect( viewSymbols, SIGNAL( clicked( const QModelIndex & ) ), this, SLOT( setSymbolFromStyle( const QModelIndex & ) ) );
+  connect( viewSymbols->selectionModel(), SIGNAL( currentChanged( const QModelIndex &, const QModelIndex & ) ), this, SLOT( setSymbolFromStyle( const QModelIndex & ) ) );
 
   // Set the Style Menu under btnStyle
   QMenu *styleMenu = new QMenu( btnStyle );