Add support for "Text as path" feature.

src/app/puzzle/scene/vpgraphicspiece.cpp

@@ -76,6 +76,7 @@ VPGraphicsPiece::VPGraphicsPiece(const VPPiecePtr &piece, QGraphicsItem *parent)
     setCursor(Qt::OpenHandCursor);
 
     PaintPiece();
+    InitLabels();
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -239,6 +240,32 @@ void VPGraphicsPiece::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void VPGraphicsPiece::SetTextAsPaths(bool newTextAsPaths)
+{
+    m_textAsPaths = newTextAsPaths;
+    InitLabels();
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void VPGraphicsPiece::InitLabels()
+{
+    qDeleteAll(m_labelPathItems);
+    qDeleteAll(m_labelTextItems);
+
+    m_labelPathItems.clear();
+    m_labelTextItems.clear();
+
+    VPPiecePtr piece = m_piece.toStrongRef();
+    if (piece.isNull())
+    {
+        return;
+    }
+
+    InitPieceLabel(piece->GetPieceLabelRect(), piece->GetPieceLabelData());
+    InitPieceLabel(piece->GetPatternLabelRect(), piece->GetPatternLabelData());
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void VPGraphicsPiece::SetStickyPoints(const QVector<QPointF> &newStickyPoint)
 {
@@ -249,7 +276,7 @@ void VPGraphicsPiece::SetStickyPoints(const QVector<QPointF> &newStickyPoint)
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VPGraphicsPiece::PaintPieceLabel(const QVector<QPointF> &labelShape, const VTextManager &tm, QPainter *painter)
+void VPGraphicsPiece::InitPieceLabel(const QVector<QPointF> &labelShape, const VTextManager &tm)
 {
     VPPiecePtr piece = m_piece.toStrongRef();
     if (piece.isNull())
@@ -275,6 +302,11 @@ void VPGraphicsPiece::PaintPieceLabel(const QVector<QPointF> &labelShape, const
 
             QFontMetrics fm(fnt);
 
+            if (m_textAsPaths)
+            {
+                dY += fm.height();
+            }
+
             if (dY > dH)
             {
                 break;
@@ -330,22 +362,32 @@ void VPGraphicsPiece::PaintPieceLabel(const QVector<QPointF> &labelShape, const
 
             labelMatrix *= piece->GetMatrix();
 
-            QPainterPath string;
+            if (m_textAsPaths)
-            string.addText(QPointF(), fnt, qsText);
-            string = labelMatrix.map(string);
-
-            if (painter != nullptr)
             {
-                painter->save();
+                QPainterPath path;
-                painter->setBrush(QBrush(color));
+                path.addText(0, - static_cast<qreal>(fm.ascent())/6., fnt, qsText);
-                painter->drawPath(string);
+
-                painter->restore();
+                auto* item = new QGraphicsPathItem(this);
+                item->setPath(path);
+                item->setBrush(QBrush(color));
+                item->setTransform(labelMatrix);
+                m_labelPathItems.append(item);
+
+                dY += tm.GetSpacing();
             }
+            else
+            {
+                auto* item = new QGraphicsSimpleTextItem(this);
+                item->setFont(fnt);
+                item->setText(qsText);
+                item->setTransform(labelMatrix);
+                m_labelTextItems.append(item);
 
                 dY += (fm.height() + tm.GetSpacing());
             }
         }
     }
+}
 
 //---------------------------------------------------------------------------------------------------------------------
 void VPGraphicsPiece::PaintPiece(QPainter *painter)
@@ -492,9 +534,6 @@ void VPGraphicsPiece::PaintPiece(QPainter *painter)
         m_placeLabels.addPath(path);
     }
 
-    PaintPieceLabel(piece->GetPieceLabelRect(), piece->GetPieceLabelData(), painter);
-    PaintPieceLabel(piece->GetPatternLabelRect(), piece->GetPatternLabelData(), painter);
-
     if (not m_stickyPoints.isEmpty())
     {
         m_stickyPath.moveTo(m_stickyPoints.first());
@@ -629,6 +668,7 @@ void VPGraphicsPiece::on_RefreshPiece(const VPPiecePtr &piece)
     {
         prepareGeometryChange();
         PaintPiece(); // refresh shapes
+        InitLabels();
         emit PieceTransformationChanged();
     }
 }

src/app/puzzle/scene/vpgraphicspiece.h

@@ -55,6 +55,8 @@ public:
 
     void SetStickyPoints(const QVector<QPointF> &newStickyPoint);
 
+    void SetTextAsPaths(bool newTextAsPaths);
+
 signals:
     void HideTransformationHandles(bool hide);
     void PieceTransformationChanged();
@@ -100,7 +102,13 @@ private:
     qreal m_stickyTranslateX{0};
     qreal m_stickyTranslateY{0};
 
-    void PaintPieceLabel(const QVector<QPointF> &labelShape, const VTextManager &tm, QPainter *painter=nullptr);
+    bool m_textAsPaths{false};
+
+    QVector<QGraphicsPathItem *> m_labelPathItems{};
+    QVector<QGraphicsSimpleTextItem *> m_labelTextItems{};
+
+    void InitLabels();
+    void InitPieceLabel(const QVector<QPointF> &labelShape, const VTextManager &tm);
     void PaintPiece(QPainter *painter=nullptr);
 
     void GroupMove(const QPointF &pos);

src/libs/vlayout/vlayoutpiece.cpp

@@ -1565,7 +1565,7 @@ void VLayoutPiece::CreateLabelStrings(QGraphicsItem *parent, const QVector<QPoin
                 QPainterPath path;
                 path.addText(0, - static_cast<qreal>(fm.ascent())/6., fnt, qsText);
 
-                QGraphicsPathItem* item = new QGraphicsPathItem(parent);
+                auto* item = new QGraphicsPathItem(parent);
                 item->setPath(path);
                 item->setBrush(QBrush(Qt::black));
                 item->setTransform(labelMatrix);
@@ -1574,7 +1574,7 @@ void VLayoutPiece::CreateLabelStrings(QGraphicsItem *parent, const QVector<QPoin
             }
             else
             {
-                QGraphicsSimpleTextItem* item = new QGraphicsSimpleTextItem(parent);
+                auto* item = new QGraphicsSimpleTextItem(parent);
                 item->setFont(fnt);
                 item->setText(qsText);
                 item->setTransform(labelMatrix);