Warn users about empty piece list when they use one of the tools those require

a piece to continue work.

--HG--
branch : release

src/libs/vtools/dialogs/tools/piece/dialoginsertnode.cpp

@@ -59,6 +59,12 @@ DialogInsertNode::~DialogInsertNode()
 void DialogInsertNode::SetPiecesList(const QVector<quint32> &list)
 {
     FillComboBoxPiecesList(ui->comboBoxPiece, list);
+
+    if (list.isEmpty())
+    {
+        qWarning() << tr("The list of pieces is empty. Please, first create at least one piece for current pattern "
+                         "piece.");
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/piece/dialogpiecepath.cpp

@@ -1329,6 +1329,12 @@ QString DialogPiecePath::GetFormulaSAWidth() const
 void DialogPiecePath::SetPiecesList(const QVector<quint32> &list)
 {
     FillComboBoxPiecesList(ui->comboBoxPiece, list);
+
+    if (list.isEmpty())
+    {
+        qWarning() << tr("The list of pieces is empty. Please, first create at least one piece for current pattern "
+                         "piece.");
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/piece/dialogpin.cpp

@@ -116,6 +116,12 @@ void DialogPin::SetPointId(quint32 id)
 void DialogPin::SetPiecesList(const QVector<quint32> &list)
 {
     FillComboBoxPiecesList(ui->comboBoxPiece, list);
+
+    if (list.isEmpty())
+    {
+        qWarning() << tr("The list of pieces is empty. Please, first create at least one piece for current pattern "
+                         "piece.");
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/libs/vtools/dialogs/tools/piece/dialogplacelabel.cpp

@@ -234,6 +234,12 @@ void DialogPlaceLabel::SetPieceId(quint32 id)
 void DialogPlaceLabel::SetPiecesList(const QVector<quint32> &list)
 {
     FillComboBoxPiecesList(ui->comboBoxPiece, list);
+
+    if (list.isEmpty())
+    {
+        qWarning() << tr("The list of pieces is empty. Please, first create at least one piece for current pattern "
+                         "piece.");
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------