ScxmlEditor: Initial import

Change-Id: I4701b77ebd4e2520f2616c42206ac17be3a12b60
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

src/plugins/scxmleditor/plugin_interface/shapeprovider.h

@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "scxmltag.h"
+#include <QByteArray>
+#include <QIcon>
+#include <QObject>
+#include <QString>
+
+namespace ScxmlEditor {
+
+namespace PluginInterface {
+
+class ShapeProvider : public QObject
+{
+    Q_OBJECT
+
+public:
+    struct Shape
+    {
+        QString title;
+        QIcon icon;
+        QStringList filters;
+        QByteArray scxmlData;
+        QVariant userData;
+    };
+
+    struct ShapeGroup
+    {
+        ~ShapeGroup()
+        {
+            qDeleteAll(shapes);
+            shapes.clear();
+        }
+
+        QString title;
+        QVector<Shape*> shapes;
+        void addShape(Shape *shape)
+        {
+            shapes << shape;
+        }
+    };
+
+    explicit ShapeProvider(QObject *parent = nullptr);
+
+    virtual int groupCount() const = 0;
+    virtual QString groupTitle(int groupIndex) const = 0;
+
+    virtual int shapeCount(int groupIndex) const = 0;
+    virtual QString shapeTitle(int groupIndex, int shapeIndex) const = 0;
+    virtual QIcon shapeIcon(int groupIndex, int shapeIndex) const = 0;
+
+    virtual bool canDrop(int groupIndex, int shapeIndex, ScxmlTag *parent) const = 0;
+    virtual QByteArray scxmlCode(int groupIndex, int shapeIndex, ScxmlTag *parent) const = 0;
+
+signals:
+    void changed();
+};
+
+} // namespace PluginInterface
+} // namespace ScxmlEditor