Add curve editor

Moved qmldesignerextension into component

Updated build systems

Change-Id: I8d2d0757a1639a472d426b66c0c8ae6fb84cc3d2
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/components/curveeditor/curveeditor.cpp

@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Design Tooling
+**
+** 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.
+**
+****************************************************************************/
+
+#include "curveeditor.h"
+#include "curveeditormodel.h"
+#include "detail/curveitem.h"
+#include "detail/graphicsview.h"
+#include "detail/treeview.h"
+
+#include <QHBoxLayout>
+#include <QSplitter>
+
+namespace DesignTools {
+
+CurveEditor::CurveEditor(CurveEditorModel *model, QWidget *parent)
+    : QWidget(parent)
+    , m_tree(new TreeView(model, this))
+    , m_view(new GraphicsView(model))
+{
+    QSplitter *splitter = new QSplitter;
+    splitter->addWidget(m_tree);
+    splitter->addWidget(m_view);
+    splitter->setStretchFactor(1, 2);
+
+    QHBoxLayout *box = new QHBoxLayout;
+    box->addWidget(splitter);
+    setLayout(box);
+
+    connect(m_tree, &TreeView::curvesSelected, m_view, &GraphicsView::reset);
+}
+
+void CurveEditor::zoomX(double zoom)
+{
+    m_view->setZoomX(zoom);
+}
+
+void CurveEditor::zoomY(double zoom)
+{
+    m_view->setZoomY(zoom);
+}
+
+} // End namespace DesignTools.