Organization of groups - groups categories. Closes smart-pattern/valentina#15.

ChangeLog.txt

@@ -46,6 +46,7 @@
 - [smart-pattern/valentina#18] Auto-created Visibility Group for group operation.
 - Setting scale factor for export and print.
 - New layout generator option: Prefer one sheet solution.
+- [smart-pattern/valentina#15] Organization of groups - groups categories
 
 # Version 0.6.2 (unreleased)
 - [#903] Bug in tool Cut Spline path.

src/app/valentina/dialogs/vwidgetgroups.cpp

@@ -31,7 +31,9 @@
 #include "../vtools/dialogs/tools/dialoggroup.h"
 #include "../vtools/undocommands/undogroup.h"
 #include "../vpatterndb/vcontainer.h"
+#include "../vmisc/compatibility.h"
 
+#include <QCompleter>
 #include <QMenu>
 #include <QTableWidget>
 
@@ -51,6 +53,7 @@ VWidgetGroups::VWidgetGroups(VAbstractPattern *doc, QWidget *parent)
     connect(ui->tableWidget, &QTableWidget::cellClicked, this, &VWidgetGroups::GroupVisibilityChanged);
     connect(ui->tableWidget, &QTableWidget::cellChanged, this, &VWidgetGroups::RenameGroup);
     connect(ui->tableWidget, &QTableWidget::customContextMenuRequested, this, &VWidgetGroups::CtxMenu);
+    connect(ui->lineEditTags, &QLineEdit::textChanged, this, &VWidgetGroups::UpdateGroups);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -110,6 +113,32 @@ void VWidgetGroups::SetMultipleGroupsVisibility(const QVector<vidtype> &groups,
     qApp->getUndoStack()->push(changeGroups);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+QMap<quint32, VGroupData> VWidgetGroups::FilterGroups(const QMap<quint32, VGroupData> &groups)
+{
+    QMap<quint32, VGroupData> filtered;
+    QSet<QString> filterCategories = ConvertToSet<QString>(VAbstractPattern::FilterGroupTags(ui->lineEditTags->text()));
+
+    if (filterCategories.isEmpty())
+    {
+        return groups;
+    }
+
+    auto i = groups.constBegin();
+    while (i != groups.constEnd())
+    {
+        const VGroupData &data = i.value();
+        QSet<QString> groupCategories = ConvertToSet<QString>(data.tags);
+        if (SetIntersects(filterCategories, groupCategories))
+        {
+            filtered.insert(i.key(), data);
+        }
+        ++i;
+    }
+
+    return filtered;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 int VWidgetGroups::GroupRow(vidtype id) const
 {
@@ -185,7 +214,7 @@ void VWidgetGroups::CtxMenu(const QPoint &pos)
                 menu->addAction(QIcon(QStringLiteral("://icon/16x16/closed_eye.png")), tr("Hide")) :
                 menu->addAction(QIcon(QStringLiteral("://icon/16x16/open_eye.png")), tr("Show"));
 
-    QAction *actionRename = menu->addAction(tr("Rename"));
+    QAction *actionPreferences = menu->addAction(QIcon::fromTheme(preferencesOtherIcon), tr("Preferences"));
     QAction *actionDelete = menu->addAction(QIcon::fromTheme(editDeleteIcon), tr("Delete"));
     menu->addSeparator();
     QAction *actionHideAll = menu->addAction(tr("Hide All"));
@@ -199,19 +228,22 @@ void VWidgetGroups::CtxMenu(const QPoint &pos)
     {
         SetGroupVisibility(id, not doc->GetGroupVisibility(id));
     }
-    else if (selectedAction == actionRename)
+    else if (selectedAction == actionPreferences)
     {
         QScopedPointer<VContainer> fackeContainer(new VContainer(qApp->TrVars(), qApp->patternUnitP(),
                                                                  VContainer::UniqueNamespace()));
         QScopedPointer<DialogGroup> dialog(new DialogGroup(fackeContainer.data(), NULL_ID, this));
         dialog->SetName(doc->GetGroupName(id));
+        dialog->SetTags(doc->GetGroupTags(id));
+        dialog->SetGroupCategories(doc->GetGroupCategories());
         const int result = dialog->exec();
 
         if (result == QDialog::Accepted)
         {
-            ::RenameGroup *renameGroup = new ::RenameGroup(doc, id, dialog->GetName());
+            ChangeGroupOptions *changeGroupOptions = new ChangeGroupOptions(doc, id, dialog->GetName(),
-            connect(renameGroup, &RenameGroup::UpdateGroups, this, &VWidgetGroups::UpdateGroups);
+                                                                            dialog->GetTags());
-            qApp->getUndoStack()->push(renameGroup);
+            connect(changeGroupOptions, &ChangeGroupOptions::UpdateGroups, this, &VWidgetGroups::UpdateGroups);
+            qApp->getUndoStack()->push(changeGroupOptions);
         }
     }
     else if (selectedAction == actionDelete)
@@ -277,9 +309,13 @@ void VWidgetGroups::UpdateGroups()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VWidgetGroups::FillTable(const QMap<quint32, QPair<QString, bool> > &groups)
+void VWidgetGroups::FillTable(QMap<quint32, VGroupData> groups)
 {
     emit doc->UpdateToolTip();
+    ui->lineEditTags->SetCompletion(doc->GetGroupCategories());
+
+    groups = FilterGroups(groups);
+
     ui->tableWidget->blockSignals(true);
     ui->tableWidget->clear();
 
@@ -290,12 +326,12 @@ void VWidgetGroups::FillTable(const QMap<quint32, QPair<QString, bool> > &groups
     while (i != groups.constEnd())
     {
         ++currentRow;
-        const QPair<QString, bool> data = i.value();
+        const VGroupData data = i.value();
 
         QTableWidgetItem *item = new QTableWidgetItem();
         item->setTextAlignment(Qt::AlignHCenter);
-        (data.second) ? item->setIcon(QIcon("://icon/16x16/open_eye.png"))
+        (data.visible) ? item->setIcon(QIcon("://icon/16x16/open_eye.png"))
-                      : item->setIcon(QIcon("://icon/16x16/closed_eye.png"));
+                       : item->setIcon(QIcon("://icon/16x16/closed_eye.png"));
 
         item->setData(Qt::UserRole, i.key());
 
@@ -306,8 +342,9 @@ void VWidgetGroups::FillTable(const QMap<quint32, QPair<QString, bool> > &groups
 
         ui->tableWidget->setItem(currentRow, 0, item);
 
-        item = new QTableWidgetItem(data.first);
+        item = new QTableWidgetItem(data.name);
         item->setTextAlignment(Qt::AlignLeft | Qt::AlignVCenter);
+        item->setToolTip(tr("Categories: %1.").arg(data.tags.join(", ")));
 
         if(doc->GroupIsEmpty(i.key()))
         {

src/app/valentina/dialogs/vwidgetgroups.h

@@ -34,6 +34,7 @@
 
 class QTableWidgetItem;
 class VAbstractPattern;
+struct VGroupData;
 
 namespace Ui
 {
@@ -61,10 +62,12 @@ private:
     Ui::VWidgetGroups *ui;
     VAbstractPattern *doc;
 
-    void FillTable(const QMap<quint32, QPair<QString, bool> > &groups);
+    void FillTable(QMap<quint32, VGroupData> groups);
     void SetGroupVisibility(vidtype id, bool visible) const;
     void SetMultipleGroupsVisibility(const QVector<vidtype> &groups, bool visible) const;
 
+    QMap<quint32, VGroupData> FilterGroups(const QMap<quint32, VGroupData> &groups);
+
     int  GroupRow(vidtype id) const;
 };
 

src/app/valentina/dialogs/vwidgetgroups.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>371</width>
-    <height>279</height>
+    <height>438</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -18,6 +18,30 @@
     <normaloff>:/icon/64x64/icon64x64.png</normaloff>:/icon/64x64/icon64x64.png</iconset>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Tags:</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="VCompleterLineEdit" name="lineEditTags">
+       <property name="toolTip">
+        <string>Separate each tag with comma.</string>
+       </property>
+       <property name="placeholderText">
+        <string>Filter by tags</string>
+       </property>
+       <property name="clearButtonEnabled">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
    <item>
     <widget class="QTableWidget" name="tableWidget">
      <property name="alternatingRowColors">
@@ -47,16 +71,23 @@
      <attribute name="verticalHeaderVisible">
       <bool>false</bool>
      </attribute>
-     <attribute name="verticalHeaderHighlightSections">
-      <bool>false</bool>
-     </attribute>
      <attribute name="verticalHeaderMinimumSectionSize">
       <number>10</number>
      </attribute>
+     <attribute name="verticalHeaderHighlightSections">
+      <bool>false</bool>
+     </attribute>
     </widget>
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>VCompleterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>vlineedit.h</header>
+  </customwidget>
+ </customwidgets>
  <resources>
   <include location="../../../libs/vmisc/share/resources/icon.qrc"/>
  </resources>

src/app/valentina/mainwindow.cpp

@@ -648,6 +648,11 @@ void MainWindow::SetToolButton(bool checked, Tool t, const QString &cursor, cons
             case Tool::PlaceLabel:
                 dialogTool->SetPiecesList(doc->GetActivePPPieces());
                 break;
+            case Tool::Rotation:
+            case Tool::Move:
+            case Tool::FlippingByAxis:
+            case Tool::FlippingByLine:
+                dialogTool->SetGroupCategories(doc->GetGroupCategories());
             default:
                 break;
         }
@@ -1241,7 +1246,8 @@ void MainWindow::ClosedDialogGroup(int result)
     {
         const QPointer<DialogGroup> dialog = qobject_cast<DialogGroup *>(dialogTool);
         SCASSERT(not dialog.isNull())
-        const QDomElement group = doc->CreateGroup(pattern->getNextId(), dialog->GetName(), dialog->GetGroup());
+        const QDomElement group = doc->CreateGroup(pattern->getNextId(), dialog->GetName(), dialog->GetTags(),
+                                                   dialog->GetGroup());
         if (not group.isNull())
         {
             AddGroup *addGroup = new AddGroup(group, doc);

src/libs/ifc/schema/pattern/v0.8.7.xsd

@@ -800,6 +800,7 @@
                         <xs:attribute name="name" type="xs:string"/>
                         <xs:attribute name="visible" type="xs:boolean"/>
                         <xs:attribute name="tool" type="xs:unsignedInt"/>
+                        <xs:attribute name="tags" type="xs:string"/>
                       </xs:complexType>
                     </xs:element>
                   </xs:sequence>

src/libs/ifc/xml/vabstractpattern.cpp

@@ -135,7 +135,8 @@ const QString VAbstractPattern::AttrNumber            = QStringLiteral("number")
 const QString VAbstractPattern::AttrCheckUniqueness   = QStringLiteral("checkUniqueness");
 const QString VAbstractPattern::AttrManualPassmarkLength = QStringLiteral("manualPassmarkLength");
 const QString VAbstractPattern::AttrPassmarkLength    = QStringLiteral("passmarkLength");
-const QString VAbstractPattern::AttrOpacity         = QStringLiteral("opacity");
+const QString VAbstractPattern::AttrOpacity           = QStringLiteral("opacity");
+const QString VAbstractPattern::AttrTags              = QStringLiteral("tags");
 
 const QString VAbstractPattern::AttrAll             = QStringLiteral("all");
 
@@ -283,6 +284,17 @@ QMap<int, QString> AdjustMaterials(QMap<int, QString> materials)
 
     return materials;
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+QString PrepareGroupTags(QStringList tags)
+{
+    for (auto &tag : tags)
+    {
+        tag = tag.simplified();
+    }
+
+    return ConvertToList(ConvertToSet<QString>(tags)).join(',');
+}
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -2428,19 +2440,22 @@ QDomElement VAbstractPattern::CreateGroups()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-QDomElement VAbstractPattern::CreateGroup(quint32 id, const QString &name, const QMap<quint32, quint32> &groupData,
+QDomElement VAbstractPattern::CreateGroup(quint32 id, const QString &name, const QStringList &tags,
-                                          vidtype tool)
+                                          const QMap<quint32, quint32> &groupData, vidtype tool)
 {
     if (id == NULL_ID || groupData.isEmpty())
     {
         return QDomElement();
     }
 
+    const QString preparedTags = PrepareGroupTags(tags);
+
     QDomElement group = createElement(TagGroup);
     SetAttribute(group, AttrId, id);
     SetAttribute(group, AttrName, name);
     SetAttribute(group, AttrVisible, true);
     SetAttributeOrRemoveIf(group, AttrTool, tool, tool == null_id);
+    SetAttributeOrRemoveIf(group, AttrTags, preparedTags, preparedTags.isEmpty());
 
     auto i = groupData.constBegin();
     while (i != groupData.constEnd())
@@ -2502,9 +2517,54 @@ void VAbstractPattern::SetGroupName(quint32 id, const QString &name)
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-QMap<quint32, QPair<QString, bool> > VAbstractPattern::GetGroups()
+QStringList VAbstractPattern::GetGroupTags(vidtype id)
 {
-    QMap<quint32, QPair<QString, bool> > data;
+    QStringList tags;
+    QDomElement group = elementById(id, TagGroup);
+    if (group.isElement())
+    {
+        tags = FilterGroupTags(GetParametrEmptyString(group, AttrTags));
+    }
+
+    return tags;
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VAbstractPattern::SetGroupTags(quint32 id, const QStringList &tags)
+{
+    QDomElement group = elementById(id, TagGroup);
+    if (group.isElement())
+    {
+        const QString rawTags = tags.join(',');
+        SetAttributeOrRemoveIf(group, AttrTags, rawTags, rawTags.isEmpty());
+        modified = true;
+        emit patternChanged(false);
+    }
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList VAbstractPattern::GetGroupCategories() const
+{
+    QSet<QString> categories;
+
+    const QDomNodeList groups = elementsByTagName(TagGroup);
+    for (int i=0; i < groups.size(); ++i)
+    {
+        const QDomElement group = groups.at(i).toElement();
+        if (not group.isNull() && group.hasAttribute(AttrTags))
+        {
+            QStringList groupTags = VAbstractPattern::FilterGroupTags(GetParametrEmptyString(group, AttrTags));
+            categories.unite(ConvertToSet<QString>(groupTags));
+        }
+    }
+
+    return ConvertToList(categories);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QMap<quint32, VGroupData> VAbstractPattern::GetGroups()
+{
+    QMap<quint32, VGroupData> data;
 
     try
     {
@@ -2521,11 +2581,13 @@ QMap<quint32, QPair<QString, bool> > VAbstractPattern::GetGroups()
                     {
                         if (group.tagName() == TagGroup)
                         {
+                            VGroupData groupData;
                             const quint32 id = GetParametrUInt(group, AttrId, QChar('0'));
-                            const bool visible = GetParametrBool(group, AttrVisible, trueStr);
+                            groupData.visible = GetParametrBool(group, AttrVisible, trueStr);
-                            const QString name = GetParametrString(group, AttrName, tr("New group"));
+                            groupData.name = GetParametrString(group, AttrName, tr("New group"));
+                            groupData.tags = FilterGroupTags(GetParametrEmptyString(group, AttrTags));
 
-                            data.insert(id, qMakePair(name, visible));
+                            data.insert(id, groupData);
                         }
                     }
                 }
@@ -2539,7 +2601,7 @@ QMap<quint32, QPair<QString, bool> > VAbstractPattern::GetGroups()
     }
     catch (const VExceptionConversionError &)
     {
-        return QMap<quint32, QPair<QString, bool> >();
+        return QMap<quint32, VGroupData>();
     }
 
     return data;
@@ -2796,3 +2858,22 @@ QString VAbstractPattern::PieceDrawName(quint32 id)
 
     return  draw.attribute(VAbstractPattern::AttrName);
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList VAbstractPattern::FilterGroupTags(const QString &tags)
+{
+    if (tags.isEmpty())
+    {
+        return QStringList();
+    }
+
+    QStringList list = tags.split(',');
+    for (auto &tag : list)
+    {
+        tag = tag.simplified();
+    }
+
+    list.removeAll("");
+
+    return ConvertToList(ConvertToSet<QString>(list));
+}

src/libs/ifc/xml/vabstractpattern.h

@@ -78,6 +78,13 @@ struct VFinalMeasurement
     QString description;
 };
 
+struct VGroupData
+{
+    QString name{};
+    bool visible{true};
+    QStringList tags{};
+};
+
 QT_WARNING_POP
 
 class VAbstractPattern : public VDomDocument
@@ -200,18 +207,27 @@ public:
 
     void           ParseGroups(const QDomElement &domElement);
     QDomElement    CreateGroups();
-    QDomElement    CreateGroup(quint32 id, const QString &name, const QMap<quint32, quint32> &groupData,
+    QDomElement    CreateGroup(quint32 id, const QString &name, const QStringList &tags,
-                            vidtype tool=null_id);
+                               const QMap<quint32, quint32> &groupData, vidtype tool=null_id);
     vidtype        GroupLinkedToTool(vidtype toolId) const;
+
     QString        GetGroupName(quint32 id);
     void           SetGroupName(quint32 id, const QString &name);
-    QMap<quint32, QPair<QString, bool> > GetGroups();
+
+    QStringList    GetGroupTags(vidtype id);
+    void           SetGroupTags(quint32 id, const QStringList &tags);
+
+    QStringList GetGroupCategories() const;
+
+    QMap<quint32, VGroupData> GetGroups();
     QMap<quint32, QString> GetGroupsContainingItem(quint32 toolId, quint32 objectId, bool containItem);
     QDomElement           AddItemToGroup(quint32 toolId, quint32 objectId, quint32 groupId);
     QDomElement           RemoveItemFromGroup(quint32 toolId, quint32 objectId, quint32 groupId);
     bool           GroupIsEmpty(quint32 id);
     bool           GetGroupVisibility(quint32 id);
 
+    static QStringList FilterGroupTags(const QString &tags);
+
     QString PieceDrawName(quint32 id);
 
     static const QString TagPattern;
@@ -290,6 +306,7 @@ public:
     static const QString AttrManualPassmarkLength;
     static const QString AttrPassmarkLength;
     static const QString AttrOpacity;
+    static const QString AttrTags;
 
     static const QString AttrAll;
 

src/libs/vmisc/compatibility.h

@@ -195,4 +195,27 @@ inline void AppendTo(Cont &container, const Input &input)
 #endif // QT_VERSION >= QT_VERSION_CHECK(5, 5, 0)
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+template <typename T>
+inline bool SetIntersects(const QSet<T> &set1, const QSet<T> &set2)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
+    return set1.intersects(set2);
+#else
+    const bool otherIsBigger = set2.size() > set1.size();
+    const QSet<T> &smallestSet = otherIsBigger ? set1 : set2;
+    const QSet<T> &biggestSet = otherIsBigger ? set2 : set1;
+    typename QSet<T>::const_iterator i = smallestSet.cbegin();
+    typename QSet<T>::const_iterator e = smallestSet.cend();
+    while (i != e)
+    {
+        if (biggestSet.contains(*i))
+            return true;
+        ++i;
+    }
+    return false;
+
+#endif
+}
+
 #endif // COMPATIBILITY_H

src/libs/vtools/dialogs/tools/dialogflippingbyaxis.cpp

@@ -30,6 +30,7 @@
 
 #include <QColor>
 #include <QComboBox>
+#include <QCompleter>
 #include <QDialog>
 #include <QLabel>
 #include <QLineEdit>
@@ -173,6 +174,25 @@ void DialogFlippingByAxis::SetHasLinkedVisibilityGroup(bool linked)
     ui->groupBoxVisibilityGroup->setChecked(linked);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogFlippingByAxis::SetVisibilityGroupTags(const QStringList &tags)
+{
+    ui->lineEditGroupTags->setText(tags.join(", "));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList DialogFlippingByAxis::GetVisibilityGroupTags() const
+{
+    return ui->lineEditGroupTags->text().split(',');
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void DialogFlippingByAxis::SetGroupCategories(const QStringList &categories)
+{
+    m_groupTags = categories;
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogFlippingByAxis::ShowDialog(bool click)
 {
@@ -342,6 +362,18 @@ void DialogFlippingByAxis::SaveData()
     operation->SetOriginPointId(GetOriginPointId());
     operation->SetAxisType(GetAxisType());
     operation->RefreshGeometry();
+
+    QStringList groupTags = ui->lineEditGroupTags->text().split(',');
+    for (auto &tag : groupTags)
+    {
+        tag = tag.trimmed();
+        if (not m_groupTags.contains(tag))
+        {
+            m_groupTags.append(tag);
+        }
+    }
+
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/dialogflippingbyaxis.h

@@ -71,6 +71,11 @@ public:
     bool HasLinkedVisibilityGroup() const;
     void SetHasLinkedVisibilityGroup(bool linked);
 
+    void        SetVisibilityGroupTags(const QStringList &tags);
+    QStringList GetVisibilityGroupTags() const;
+
+    virtual void SetGroupCategories(const QStringList &categories) override;
+
     virtual void ShowDialog(bool click) override;
 
 public slots:
@@ -106,6 +111,8 @@ private:
     bool flagGroupName;
     bool flagError;
 
+    QStringList m_groupTags{};
+
     static void FillComboBoxAxisType(QComboBox *box);
 };
 

src/libs/vtools/dialogs/tools/dialogflippingbyaxis.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>304</width>
-    <height>207</height>
+    <height>237</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -62,15 +62,15 @@
      <property name="checked">
       <bool>false</bool>
      </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <layout class="QGridLayout" name="gridLayout">
-      <item>
+      <item row="0" column="0">
        <widget class="QLabel" name="labelGroupName">
         <property name="text">
          <string>Name:</string>
         </property>
        </widget>
       </item>
-      <item>
+      <item row="0" column="1">
        <widget class="QLineEdit" name="lineEditVisibilityGroup">
         <property name="text">
          <string>Flipping by axis</string>
@@ -80,6 +80,26 @@
         </property>
        </widget>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Tags:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="VCompleterLineEdit" name="lineEditGroupTags">
+        <property name="toolTip">
+         <string>Separate each tag with comma.</string>
+        </property>
+        <property name="placeholderText">
+         <string>Add tags</string>
+        </property>
+        <property name="clearButtonEnabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
@@ -95,6 +115,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>VCompleterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>vlineedit.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections>
   <connection>

src/libs/vtools/dialogs/tools/dialogflippingbyline.cpp

@@ -30,6 +30,7 @@
 
 #include <QColor>
 #include <QComboBox>
+#include <QCompleter>
 #include <QDialog>
 #include <QLabel>
 #include <QLineEdit>
@@ -168,6 +169,25 @@ void DialogFlippingByLine::SetHasLinkedVisibilityGroup(bool linked)
     ui->groupBoxVisibilityGroup->setChecked(linked);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogFlippingByLine::SetVisibilityGroupTags(const QStringList &tags)
+{
+    ui->lineEditGroupTags->setText(tags.join(", "));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList DialogFlippingByLine::GetVisibilityGroupTags() const
+{
+    return ui->lineEditGroupTags->text().split(',');
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void DialogFlippingByLine::SetGroupCategories(const QStringList &categories)
+{
+    m_groupTags = categories;
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogFlippingByLine::ShowDialog(bool click)
 {
@@ -366,6 +386,18 @@ void DialogFlippingByLine::SaveData()
     operation->SetFirstLinePointId(GetFirstLinePointId());
     operation->SetSecondLinePointId(GetSecondLinePointId());
     operation->RefreshGeometry();
+
+    QStringList groupTags = ui->lineEditGroupTags->text().split(',');
+    for (auto &tag : groupTags)
+    {
+        tag = tag.trimmed();
+        if (not m_groupTags.contains(tag))
+        {
+            m_groupTags.append(tag);
+        }
+    }
+
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/dialogflippingbyline.h

@@ -71,6 +71,11 @@ public:
     bool HasLinkedVisibilityGroup() const;
     void SetHasLinkedVisibilityGroup(bool linked);
 
+    void        SetVisibilityGroupTags(const QStringList &tags);
+    QStringList GetVisibilityGroupTags() const;
+
+    virtual void SetGroupCategories(const QStringList &categories) override;
+
     virtual void ShowDialog(bool click) override;
 
 public slots:
@@ -105,6 +110,8 @@ private:
     bool flagName;
     bool flagGroupName;
     bool flagError;
+
+    QStringList m_groupTags{};
 };
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/dialogflippingbyline.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>304</width>
-    <height>207</height>
+    <height>237</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -66,15 +66,15 @@
      <property name="checked">
       <bool>false</bool>
      </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <layout class="QGridLayout" name="gridLayout">
-      <item>
+      <item row="0" column="0">
        <widget class="QLabel" name="labelGroupName">
         <property name="text">
          <string>Name:</string>
         </property>
        </widget>
       </item>
-      <item>
+      <item row="0" column="1">
        <widget class="QLineEdit" name="lineEditVisibilityGroup">
         <property name="text">
          <string>Flipping by line</string>
@@ -84,6 +84,26 @@
         </property>
        </widget>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Tags:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="VCompleterLineEdit" name="lineEditGroupTags">
+        <property name="toolTip">
+         <string>Separate each tag with comma.</string>
+        </property>
+        <property name="placeholderText">
+         <string>Add tags</string>
+        </property>
+        <property name="clearButtonEnabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
@@ -99,6 +119,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>VCompleterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>vlineedit.h</header>
+  </customwidget>
+ </customwidgets>
  <resources>
   <include location="../../../vmisc/share/resources/icon.qrc"/>
  </resources>

src/libs/vtools/dialogs/tools/dialoggroup.cpp

@@ -28,6 +28,7 @@
 
 #include "dialoggroup.h"
 
+#include <QCompleter>
 #include <QLineEdit>
 
 #include "ui_dialoggroup.h"
@@ -63,6 +64,24 @@ QString DialogGroup::GetName() const
     return ui->lineEditName->text();
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogGroup::SetTags(const QStringList &tags)
+{
+    ui->lineEditTags->setText(tags.join(", "));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList DialogGroup::GetTags() const
+{
+    return ui->lineEditTags->text().split(",");
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void DialogGroup::SetGroupCategories(const QStringList &categories)
+{
+    ui->lineEditTags->SetCompletion(categories);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogGroup::ShowDialog(bool click)
 {

src/libs/vtools/dialogs/tools/dialoggroup.h

@@ -54,6 +54,11 @@ public:
     void    SetName(const QString &name);
     QString GetName() const;
 
+    void        SetTags(const QStringList &tags);
+    QStringList GetTags() const;
+
+    void SetGroupCategories(const QStringList &categories);
+
     QMap<quint32, quint32> GetGroup() const;
 
     virtual void ShowDialog(bool click) override;

src/libs/vtools/dialogs/tools/dialoggroup.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>397</width>
+    <width>294</width>
-    <height>80</height>
+    <height>104</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -19,22 +19,45 @@
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <layout class="QHBoxLayout" name="horizontalLayout">
+    <layout class="QGridLayout" name="gridLayout">
-     <item>
+     <item row="0" column="0">
       <widget class="QLabel" name="label">
        <property name="text">
         <string>Group name:</string>
        </property>
       </widget>
      </item>
-     <item>
+     <item row="0" column="1">
       <widget class="QLineEdit" name="lineEditName">
        <property name="toolTip">
-        <string>Unique pattern piece name</string>
+        <string/>
        </property>
        <property name="placeholderText">
         <string>Choose group name</string>
        </property>
+       <property name="clearButtonEnabled">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Tags:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="VCompleterLineEdit" name="lineEditTags">
+       <property name="toolTip">
+        <string>Separate each tag with comma.</string>
+       </property>
+       <property name="placeholderText">
+        <string>Add tags</string>
+       </property>
+       <property name="clearButtonEnabled">
+        <bool>true</bool>
+       </property>
       </widget>
      </item>
     </layout>
@@ -51,6 +74,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>VCompleterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>vlineedit.h</header>
+  </customwidget>
+ </customwidgets>
  <resources>
   <include location="../../../vmisc/share/resources/icon.qrc"/>
  </resources>

src/libs/vtools/dialogs/tools/dialogmove.cpp

@@ -30,6 +30,7 @@
 
 #include <QColor>
 #include <QComboBox>
+#include <QCompleter>
 #include <QDialog>
 #include <QLabel>
 #include <QLineEdit>
@@ -283,6 +284,25 @@ void DialogMove::SetHasLinkedVisibilityGroup(bool linked)
     ui->groupBoxVisibilityGroup->setChecked(linked);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogMove::SetVisibilityGroupTags(const QStringList &tags)
+{
+    ui->lineEditGroupTags->setText(tags.join(", "));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList DialogMove::GetVisibilityGroupTags() const
+{
+    return ui->lineEditGroupTags->text().split(',');
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void DialogMove::SetGroupCategories(const QStringList &categories)
+{
+    m_groupTags = categories;
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogMove::ShowDialog(bool click)
 {
@@ -551,6 +571,18 @@ void DialogMove::SaveData()
     operation->SetRotationAngle(formulaRotationAngle);
     operation->SetRotationOriginPointId(GetRotationOrigPointId());
     operation->RefreshGeometry();
+
+    QStringList groupTags = ui->lineEditGroupTags->text().split(',');
+    for (auto &tag : groupTags)
+    {
+        tag = tag.trimmed();
+        if (not m_groupTags.contains(tag))
+        {
+            m_groupTags.append(tag);
+        }
+    }
+
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/dialogmove.h

@@ -76,6 +76,11 @@ public:
     bool HasLinkedVisibilityGroup() const;
     void SetHasLinkedVisibilityGroup(bool linked);
 
+    void        SetVisibilityGroupTags(const QStringList &tags);
+    QStringList GetVisibilityGroupTags() const;
+
+    virtual void SetGroupCategories(const QStringList &categories) override;
+
     virtual void ShowDialog(bool click) override;
 
 public slots:
@@ -138,6 +143,8 @@ private:
     bool flagName;
     bool flagGroupName;
 
+    QStringList m_groupTags{};
+
     void EvalAngle();
     void EvalRotationAngle();
     void EvalLength();

src/libs/vtools/dialogs/tools/dialogmove.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>304</width>
+    <width>424</width>
-    <height>402</height>
+    <height>432</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -605,15 +605,15 @@
      <property name="checked">
       <bool>false</bool>
      </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <layout class="QGridLayout" name="gridLayout">
-      <item>
+      <item row="0" column="0">
        <widget class="QLabel" name="labelGroupName">
         <property name="text">
          <string>Name:</string>
         </property>
        </widget>
       </item>
-      <item>
+      <item row="0" column="1">
        <widget class="QLineEdit" name="lineEditVisibilityGroup">
         <property name="text">
          <string>Move</string>
@@ -623,6 +623,26 @@
         </property>
        </widget>
       </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_5">
+        <property name="text">
+         <string>Tags:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="VCompleterLineEdit" name="lineEditGroupTags">
+        <property name="toolTip">
+         <string>Separate each tag with comma.</string>
+        </property>
+        <property name="placeholderText">
+         <string>Add tags</string>
+        </property>
+        <property name="clearButtonEnabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>
@@ -639,6 +659,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>VCompleterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>vlineedit.h</header>
+  </customwidget>
   <customwidget>
    <class>VPlainTextEdit</class>
    <extends>QPlainTextEdit</extends>

src/libs/vtools/dialogs/tools/dialogrotation.cpp

@@ -30,6 +30,7 @@
 
 #include <QColor>
 #include <QComboBox>
+#include <QCompleter>
 #include <QDialog>
 #include <QLabel>
 #include <QLineEdit>
@@ -196,6 +197,25 @@ void DialogRotation::SetHasLinkedVisibilityGroup(bool linked)
     ui->groupBoxVisibilityGroup->setChecked(linked);
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogRotation::SetVisibilityGroupTags(const QStringList &tags)
+{
+    ui->lineEditGroupTags->setText(tags.join(", "));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList DialogRotation::GetVisibilityGroupTags() const
+{
+    return ui->lineEditGroupTags->text().split(',');
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void DialogRotation::SetGroupCategories(const QStringList &categories)
+{
+    m_groupTags = categories;
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogRotation::ShowDialog(bool click)
 {
@@ -432,6 +452,18 @@ void DialogRotation::SaveData()
     operation->SetOriginPointId(GetOrigPointId());
     operation->SetAngle(formulaAngle);
     operation->RefreshGeometry();
+
+    QStringList groupTags = ui->lineEditGroupTags->text().split(',');
+    for (auto &tag : groupTags)
+    {
+        tag = tag.trimmed();
+        if (not m_groupTags.contains(tag))
+        {
+            m_groupTags.append(tag);
+        }
+    }
+
+    ui->lineEditGroupTags->SetCompletion(m_groupTags);
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/dialogrotation.h

@@ -69,6 +69,11 @@ public:
     bool HasLinkedVisibilityGroup() const;
     void SetHasLinkedVisibilityGroup(bool linked);
 
+    void        SetVisibilityGroupTags(const QStringList &tags);
+    QStringList GetVisibilityGroupTags() const;
+
+    virtual void SetGroupCategories(const QStringList &categories) override;
+
     virtual void ShowDialog(bool click) override;
 
 public slots:
@@ -120,6 +125,8 @@ private:
     bool flagName;
     bool flagGroupName;
     bool flagError;
+
+    QStringList m_groupTags{};
 };
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/dialogrotation.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>392</width>
-    <height>252</height>
+    <height>282</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -236,18 +236,38 @@
      <property name="checked">
       <bool>false</bool>
      </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <layout class="QGridLayout" name="gridLayout">
-      <item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Tags:</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="lineEditVisibilityGroup">
+        <property name="text">
+         <string>Rotation</string>
+        </property>
+        <property name="clearButtonEnabled">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
        <widget class="QLabel" name="labelGroupName">
         <property name="text">
          <string>Name:</string>
         </property>
        </widget>
       </item>
-      <item>
+      <item row="1" column="1">
-       <widget class="QLineEdit" name="lineEditVisibilityGroup">
+       <widget class="VCompleterLineEdit" name="lineEditGroupTags">
-        <property name="text">
+        <property name="toolTip">
-         <string>Rotation</string>
+         <string>Separate each tag with comma.</string>
+        </property>
+        <property name="placeholderText">
+         <string>Add tags</string>
         </property>
         <property name="clearButtonEnabled">
          <bool>true</bool>
@@ -270,6 +290,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>VCompleterLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>vlineedit.h</header>
+  </customwidget>
   <customwidget>
    <class>VPlainTextEdit</class>
    <extends>QPlainTextEdit</extends>

src/libs/vtools/dialogs/tools/dialogtool.cpp

@@ -799,6 +799,13 @@ void DialogTool::SetToolId(const quint32 &value)
     toolId = value;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void DialogTool::SetGroupCategories(const QStringList &categories)
+{
+    Q_UNUSED(categories)
+    // do nothing
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogTool::ShowDialog(bool click)
 {

src/libs/vtools/dialogs/tools/dialogtool.h

@@ -90,6 +90,8 @@ public:
     quint32          GetToolId() const;
     void             SetToolId(const quint32 &value);
 
+    virtual void SetGroupCategories(const QStringList &categories);
+
     static void MoveListRowTop(QListWidget *list);
     static void MoveListRowUp(QListWidget *list);
     static void MoveListRowDown(QListWidget *list);

src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyaxis.cpp

@@ -93,6 +93,7 @@ VToolFlippingByAxis *VToolFlippingByAxis::Create(const QPointer<DialogTool> &dia
     initData.source = dialogTool->GetObjects();
     initData.hasLinkedVisibilityGroup = dialogTool->HasLinkedVisibilityGroup();
     initData.visibilityGroupName = dialogTool->GetVisibilityGroupName();
+    initData.visibilityGroupTags = dialogTool->GetVisibilityGroupTags();
     initData.scene = scene;
     initData.doc = doc;
     initData.data = data;

src/libs/vtools/tools/drawTools/operation/flipping/vtoolflippingbyline.cpp

@@ -93,6 +93,7 @@ VToolFlippingByLine *VToolFlippingByLine::Create(const QPointer<DialogTool> &dia
     initData.source = dialogTool->GetObjects();
     initData.hasLinkedVisibilityGroup = dialogTool->HasLinkedVisibilityGroup();
     initData.visibilityGroupName = dialogTool->GetVisibilityGroupName();
+    initData.visibilityGroupTags = dialogTool->GetVisibilityGroupTags();
     initData.scene = scene;
     initData.doc = doc;
     initData.data = data;

src/libs/vtools/tools/drawTools/operation/vabstractoperation.cpp

@@ -609,9 +609,9 @@ void VAbstractOperation::ApplyToolOptions(const QList<quint32> &oldDependencies,
         {
             if (group != null_id)
             {
-                RenameGroup *renameGroup = new RenameGroup(doc, group, groupName);
+                ChangeGroupOptions *groupOptions = new ChangeGroupOptions(doc, group, groupName, groupTags);
-                connect(renameGroup, &RenameGroup::UpdateGroups, doc, &VAbstractPattern::UpdateVisiblityGroups);
+                connect(groupOptions, &ChangeGroupOptions::UpdateGroups, doc, &VAbstractPattern::UpdateVisiblityGroups);
-                qApp->getUndoStack()->push(renameGroup);
+                qApp->getUndoStack()->push(groupOptions);
             }
             else
             {
@@ -619,6 +619,7 @@ void VAbstractOperation::ApplyToolOptions(const QList<quint32> &oldDependencies,
                 initData.id = m_id;
                 initData.hasLinkedVisibilityGroup = hasLinkedGroup;
                 initData.visibilityGroupName = groupName;
+                initData.visibilityGroupTags = groupTags;
                 initData.data = &(VDataTool::data);
                 initData.doc = doc;
                 initData.source = source;
@@ -790,7 +791,7 @@ bool VAbstractOperation::NeedUpdateVisibilityGroup() const
     {
         if (group != null_id)
         {
-            if (groupName != doc->GetGroupName(group))
+            if (groupName != doc->GetGroupName(group) || groupTags != doc->GetGroupTags(group))
             {
                 return true; // rename group
             }
@@ -916,7 +917,8 @@ void VAbstractOperation::CreateVisibilityGroup(const VAbstractOperationInitData
 
     const QMap<quint32, quint32> groupData = VisibilityGroupDataFromSource(initData.data, initData.source);
     vidtype groupId = initData.data->getNextId();
-    const QDomElement group = initData.doc->CreateGroup(groupId, initData.visibilityGroupName, groupData, initData.id);
+    const QDomElement group = initData.doc->CreateGroup(groupId, initData.visibilityGroupName,
+                                                        initData.visibilityGroupTags, groupData, initData.id);
     if (not group.isNull())
     {
         AddGroup *addGroup = new AddGroup(group, initData.doc);

src/libs/vtools/tools/drawTools/operation/vabstractoperation.h

@@ -60,6 +60,7 @@ struct VAbstractOperationInitData : VAbstractToolInitData
     QVector<quint32> source{};
     QVector<DestinationItem> destination{};
     QString visibilityGroupName{};
+    QStringList visibilityGroupTags{};
     bool hasLinkedVisibilityGroup{false};
 };
 
@@ -134,6 +135,7 @@ protected:
 
     bool hasLinkedGroup{false};
     QString groupName{};
+    QStringList groupTags{};
 
     VAbstractOperation(VAbstractPattern *doc, VContainer *data, quint32 id, const QString &suffix,
                        const QVector<quint32> &source, const QVector<DestinationItem> &destination,
@@ -187,6 +189,7 @@ void VAbstractOperation::SetDialogVisibilityGroupData(QPointer<T> dialogTool)
     {
         dialogTool->SetHasLinkedVisibilityGroup(true);
         dialogTool->SetVisibilityGroupName(doc->GetGroupName(group));
+        dialogTool->SetVisibilityGroupTags(doc->GetGroupTags(group));
     }
     else
     {

src/libs/vtools/tools/drawTools/operation/vtoolmove.cpp

@@ -149,6 +149,7 @@ VToolMove *VToolMove::Create(const QPointer<DialogTool> &dialog, VMainGraphicsSc
     initData.source = dialogTool->GetObjects();
     initData.hasLinkedVisibilityGroup = dialogTool->HasLinkedVisibilityGroup();
     initData.visibilityGroupName = dialogTool->GetVisibilityGroupName();
+    initData.visibilityGroupTags = dialogTool->GetVisibilityGroupTags();
     initData.scene = scene;
     initData.doc = doc;
     initData.data = data;

src/libs/vtools/tools/drawTools/operation/vtoolrotation.cpp

@@ -117,6 +117,7 @@ VToolRotation *VToolRotation::Create(const QPointer<DialogTool> &dialog, VMainGr
     initData.source = dialogTool->GetObjects();
     initData.hasLinkedVisibilityGroup = dialogTool->HasLinkedVisibilityGroup();
     initData.visibilityGroupName = dialogTool->GetVisibilityGroupName();
+    initData.visibilityGroupTags = dialogTool->GetVisibilityGroupTags();
     initData.scene = scene;
     initData.doc = doc;
     initData.data = data;

src/libs/vtools/undocommands/undogroup.cpp

@@ -145,6 +145,38 @@ void RenameGroup::redo()
     emit UpdateGroups();
 }
 
+//ChangeGroupOptions
+//---------------------------------------------------------------------------------------------------------------------
+ChangeGroupOptions::ChangeGroupOptions(VAbstractPattern *doc, quint32 id, const QString &name, const QStringList &tags,
+                                       QUndoCommand *parent)
+    : VUndoCommand(QDomElement(), doc, parent),
+      newName(name),
+      newTags(tags)
+{
+    setText(tr("rename group"));
+    nodeId = id;
+    oldName = doc->GetGroupName(nodeId);
+    oldTags = doc->GetGroupTags(nodeId);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void ChangeGroupOptions::undo()
+{
+    qCDebug(vUndo, "Undo.");
+    doc->SetGroupName(nodeId, oldName);
+    doc->SetGroupTags(nodeId, oldTags);
+    emit UpdateGroups();
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void ChangeGroupOptions::redo()
+{
+    qCDebug(vUndo, "Redo.");
+    doc->SetGroupName(nodeId, newName);
+    doc->SetGroupTags(nodeId, newTags);
+    emit UpdateGroups();
+}
+
 //AddItemToGroup
 //---------------------------------------------------------------------------------------------------------------------
 AddItemToGroup::AddItemToGroup(const QDomElement &xml, VAbstractPattern *doc, quint32 groupId, QUndoCommand *parent)

src/libs/vtools/undocommands/undogroup.h

@@ -69,6 +69,25 @@ private:
     QString oldName{};
 };
 
+class ChangeGroupOptions : public VUndoCommand
+{
+    Q_OBJECT
+public:
+    ChangeGroupOptions(VAbstractPattern *doc, quint32 id, const QString &name, const QStringList &tags,
+                       QUndoCommand *parent = nullptr);
+    virtual ~ChangeGroupOptions()=default;
+    virtual void undo() override;
+    virtual void redo() override;
+signals:
+    void UpdateGroups();
+private:
+    Q_DISABLE_COPY(ChangeGroupOptions)
+    QString newName;
+    QString oldName{};
+    QStringList newTags;
+    QStringList oldTags{};
+};
+
 class AddItemToGroup : public VUndoCommand
 {
     Q_OBJECT

src/libs/vwidgets/vlineedit.cpp

@@ -28,6 +28,72 @@
 
 #include "vlineedit.h"
 
+#include <QApplication>
+#include <QCompleter>
+#include <QStringListModel>
+#include <QTimer>
+#include <QtDebug>
+
+#include "../vmisc/compatibility.h"
+
+namespace
+{
+class MultiSelectCompleter : public QCompleter
+{
+public:
+    MultiSelectCompleter(QObject* parent=nullptr);
+    MultiSelectCompleter(const QStringList& items, QObject* parent=nullptr);
+    virtual ~MultiSelectCompleter() =default;
+
+    virtual QString pathFromIndex(const QModelIndex& index) const override;
+    virtual QStringList splitPath(const QString& path) const override;
+
+private:
+    Q_DISABLE_COPY(MultiSelectCompleter)
+};
+}
+
+//MultiSelectCompleter
+//---------------------------------------------------------------------------------------------------------------------
+MultiSelectCompleter::MultiSelectCompleter(QObject *parent)
+    : QCompleter(parent)
+{}
+
+//---------------------------------------------------------------------------------------------------------------------
+MultiSelectCompleter::MultiSelectCompleter(const QStringList& items, QObject* parent)
+    : QCompleter(items, parent)
+{}
+
+//---------------------------------------------------------------------------------------------------------------------
+QString MultiSelectCompleter::pathFromIndex(const QModelIndex& index) const
+{
+    QString path = QCompleter::pathFromIndex(index);
+
+    QString text = static_cast<QLineEdit*>(widget())->text();
+
+    int pos = text.lastIndexOf(',');
+    if (pos >= 0)
+    {
+        path = text.left(pos) + ", " + path;
+    }
+
+    return path;
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+QStringList MultiSelectCompleter::splitPath( const QString& path ) const
+{
+    int pos = path.lastIndexOf(',') + 1;
+
+    while (pos < path.length() && path.at(pos) == QLatin1Char(' '))
+    {
+        pos++;
+    }
+
+    return QStringList(path.mid(pos));
+}
+
+//VLineEdit
 //---------------------------------------------------------------------------------------------------------------------
 VLineEdit::VLineEdit(QWidget *parent)
     : QLineEdit(parent),
@@ -74,3 +140,59 @@ void VLineEdit::mousePressEvent(QMouseEvent *e)
     }
 }
 
+// VCompleterLineEdit
+//---------------------------------------------------------------------------------------------------------------------
+VCompleterLineEdit::VCompleterLineEdit(QWidget *parent)
+    : VLineEdit(parent),
+      m_model(new QStringListModel(this))
+{
+    setCompleter(new MultiSelectCompleter());
+    completer()->setModel(m_model);
+    completer()->setCompletionMode(QCompleter::PopupCompletion);
+    completer()->setCaseSensitivity(Qt::CaseInsensitive);
+    connect(this, &VCompleterLineEdit::textEdited, this, &VCompleterLineEdit::ShowCompletion);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VCompleterLineEdit::SetCompletion(const QStringList &list)
+{
+    m_model->setStringList(list);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VCompleterLineEdit::focusInEvent(QFocusEvent *e)
+{
+    QLineEdit::focusInEvent(e);
+    // force completion when line edit is focued in
+    completer()->complete();
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VCompleterLineEdit::ShowCompletion()
+{
+//    PrepareCompletion();
+
+    // force to show all items when text is empty
+    completer()->setCompletionMode(text().isEmpty() ? QCompleter::UnfilteredPopupCompletion
+                                                    : QCompleter::PopupCompletion);
+    if (text().isEmpty())
+    {
+        // completion list will be hidden now; we will show it again after a delay
+        QTimer::singleShot(100, this, &VCompleterLineEdit::CompletionPopup);
+    }
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VCompleterLineEdit::CompletionPopup()
+{
+    // apparently, complete() works only in event handler
+    QApplication::postEvent(this, new QEvent(QEvent::User));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VCompleterLineEdit::customEvent(QEvent *e)
+{
+    QLineEdit::customEvent(e);
+    // force completion after text is deleted
+    completer()->complete();
+}

src/libs/vwidgets/vlineedit.h

@@ -31,6 +31,8 @@
 
 #include <QLineEdit>
 
+class QStringListModel;
+
 class VLineEdit : public QLineEdit
 {
     Q_OBJECT
@@ -47,4 +49,31 @@ private:
     bool m_selectOnMousePress;
 };
 
+/*! Line edit widget with auto completion based on QStringListModel.
+  Modified behaviour: completion list will appear even when contents of
+  line edit is empty. Full list of options will be showed when line edit
+  has focus and is empty.
+  */
+class VCompleterLineEdit : public VLineEdit
+{
+    Q_OBJECT
+public:
+    explicit VCompleterLineEdit(QWidget *parent = nullptr);
+
+    //! Set list of options used for completion.
+    void SetCompletion(const QStringList &list);
+
+protected:
+    virtual void focusInEvent(QFocusEvent *e) override;
+    virtual void customEvent(QEvent* e) override;
+
+private slots:
+    void ShowCompletion();
+    void CompletionPopup();
+
+private:
+    Q_DISABLE_COPY(VCompleterLineEdit)
+    QStringListModel *m_model;
+};
+
 #endif // VLINEEDIT_H