1 files changed, 142 insertions, 0 deletions
diff --git a/src/graphs/qml/qquickgraphssurface_p.h b/src/graphs/qml/qquickgraphssurface_p.h
new file mode 100644
index 00000000..d26d8505
--- /dev/null
+++ b/src/graphs/qml/qquickgraphssurface_p.h
@@ -0,0 +1,142 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the QtGraphs API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef QQUICKGRAPHSSURFACE_P_H
+#define QQUICKGRAPHSSURFACE_P_H
+
+#include "qquickgraphsitem_p.h"
+#include "qsurface3dseries.h"
+
+#include <private/graphsglobal_p.h>
+#include <private/surface3dcontroller_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QValue3DAxis;
+class QSurface3DSeries;
+class Surface3DController;
+class SurfaceSelectionInstancing;
+class Q3DSurface;
+
+class QQuickGraphsSurface : public QQuickGraphsItem
+{
+    Q_OBJECT
+    Q_PROPERTY(QValue3DAxis *axisX READ axisX WRITE setAxisX NOTIFY axisXChanged)
+    Q_PROPERTY(QValue3DAxis *axisY READ axisY WRITE setAxisY NOTIFY axisYChanged)
+    Q_PROPERTY(QValue3DAxis *axisZ READ axisZ WRITE setAxisZ NOTIFY axisZChanged)
+    Q_PROPERTY(QSurface3DSeries *selectedSeries READ selectedSeries NOTIFY selectedSeriesChanged)
+    Q_PROPERTY(QQmlListProperty<QSurface3DSeries> seriesList READ seriesList CONSTANT)
+    Q_PROPERTY(bool flipHorizontalGrid READ flipHorizontalGrid WRITE setFlipHorizontalGrid NOTIFY flipHorizontalGridChanged)
+    Q_CLASSINFO("DefaultProperty", "seriesList")
+
+    QML_NAMED_ELEMENT(Surface3D)
+    QML_ADDED_IN_VERSION(6, 6)
+
+public:
+    explicit QQuickGraphsSurface(QQuickItem *parent = 0);
+    ~QQuickGraphsSurface();
+
+    QValue3DAxis *axisX() const;
+    void setAxisX(QValue3DAxis *axis);
+    QValue3DAxis *axisY() const;
+    void setAxisY(QValue3DAxis *axis);
+    QValue3DAxis *axisZ() const;
+    void setAxisZ(QValue3DAxis *axis);
+
+    QQmlListProperty<QSurface3DSeries> seriesList();
+    static void appendSeriesFunc(QQmlListProperty<QSurface3DSeries> *list, QSurface3DSeries *series);
+    static qsizetype countSeriesFunc(QQmlListProperty<QSurface3DSeries> *list);
+    static QSurface3DSeries *atSeriesFunc(QQmlListProperty<QSurface3DSeries> *list, qsizetype index);
+    static void clearSeriesFunc(QQmlListProperty<QSurface3DSeries> *list);
+    Q_INVOKABLE void addSeries(QSurface3DSeries *series);
+    Q_INVOKABLE void removeSeries(QSurface3DSeries *series);
+
+    QSurface3DSeries *selectedSeries() const;
+    void setFlipHorizontalGrid(bool flip);
+    bool flipHorizontalGrid() const;
+
+protected:
+    void componentComplete() override;
+    void synchData() override;
+    void updateGraph() override;
+    void updateSliceGraph() override;
+    bool handleMousePressedEvent(QMouseEvent *event) override;
+    void updateSingleHighlightColor() override;
+    void handleThemeTypeChange() override;
+
+public Q_SLOTS:
+    void handleAxisXChanged(QAbstract3DAxis *axis) override;
+    void handleAxisYChanged(QAbstract3DAxis *axis) override;
+    void handleAxisZChanged(QAbstract3DAxis *axis) override;
+
+    void handleFlatShadingEnabledChanged();
+    void handleWireframeColorChanged();
+
+Q_SIGNALS:
+    void axisXChanged(QValue3DAxis *axis);
+    void axisYChanged(QValue3DAxis *axis);
+    void axisZChanged(QValue3DAxis *axis);
+    void selectedSeriesChanged(QSurface3DSeries *series);
+    void flipHorizontalGridChanged(bool flip);
+
+private:
+    struct SurfaceVertex {
+        QVector3D position;
+        QVector3D normal;
+        QVector2D uv;
+        QPoint coord;
+    };
+
+    struct SurfaceModel {
+        QQuick3DModel *model;
+        QQuick3DModel *gridModel;
+        QQuick3DModel *sliceModel;
+        QQuick3DModel *sliceGridModel;
+        QVector<SurfaceVertex> vertices;
+        QVector<SurfaceVertex> coarceVertices;
+        QVector<quint32> indices;
+        QVector<quint32> gridIndices;
+        QVector<float> height;
+        QSurface3DSeries *series;
+        int columnCount;
+        int rowCount;
+        SurfaceVertex selectedVertex;
+        bool picked = false;
+    };
+
+    QVector3D getNormalizedVertex(SurfaceModel *model, const QSurfaceDataItem &data, bool polar, bool flipXZ);
+    void createSmoothNormalBodyLine(SurfaceModel *model, int &totalIndex, int column);
+    void createSmoothNormalUpperLine(SurfaceModel *model, int &totalIndex);
+    void createSmoothIndices(SurfaceModel *model, int x, int y, int endX, int endY);
+    void createCoarseVertices(SurfaceModel *model, int x, int y, int endX, int endY);
+    void createGridlineIndices(SurfaceModel *model, int x, int y, int endX, int endY);
+    void handleChangedSeries();
+    void updateModel(SurfaceModel *model);
+    void updateMaterial(SurfaceModel *model);
+    void updateSelectedPoint();
+    void addModel(QSurface3DSeries *series);
+
+    QVector<SurfaceModel *> m_model;
+    Surface3DController *m_surfaceController;
+    QQuick3DModel *m_selectionPointer = nullptr;
+    SurfaceSelectionInstancing *m_instancing = nullptr;
+    QQuick3DModel *m_sliceSelectionPointer = nullptr;
+    SurfaceSelectionInstancing *m_sliceInstancing = nullptr;
+
+
+    friend class Q3DSurface;
+};
+
+QT_END_NAMESPACE
+
+#endif // QQUICKGRAPHSSURFACE_P_H