1 files changed, 172 insertions, 0 deletions
diff --git a/src/plugins/qmldesigner/components/transitioneditor/transitioneditorgraphicslayout.cpp b/src/plugins/qmldesigner/components/transitioneditor/transitioneditorgraphicslayout.cpp
new file mode 100644
index 0000000000..02e1258dfd
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+++ b/src/plugins/qmldesigner/components/transitioneditor/transitioneditorgraphicslayout.cpp
@@ -0,0 +1,172 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 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.
+**
+****************************************************************************/
+
+#include "transitioneditorgraphicslayout.h"
+
+#include "timelinegraphicsscene.h"
+#include "timelineplaceholder.h"
+#include "timelinesectionitem.h"
+#include "timelineview.h"
+#include "transitioneditorsectionitem.h"
+
+#include <QGraphicsLinearLayout>
+
+#include <cmath>
+
+namespace QmlDesigner {
+
+TransitionEditorGraphicsLayout::TransitionEditorGraphicsLayout(QGraphicsScene *scene,
+                                                               TimelineItem *parent)
+    : TimelineItem(parent)
+    , m_layout(new QGraphicsLinearLayout)
+    , m_rulerItem(TimelineRulerSectionItem::create(scene, this))
+    , m_placeholder1(TimelinePlaceholder::create(scene, this))
+    , m_placeholder2(TimelinePlaceholder::create(scene, this))
+{
+    m_layout->setOrientation(Qt::Vertical);
+    m_layout->setSpacing(0);
+    m_layout->setContentsMargins(0, 0, 0, 0);
+
+    m_layout->addItem(m_rulerItem);
+    m_layout->addItem(m_placeholder1);
+    m_layout->addItem(m_placeholder2);
+
+    setLayout(m_layout);
+
+    setPos(QPointF(0, 0));
+
+    connect(m_rulerItem,
+            &TimelineRulerSectionItem::rulerClicked,
+            this,
+            &TransitionEditorGraphicsLayout::rulerClicked);
+}
+
+TransitionEditorGraphicsLayout::~TransitionEditorGraphicsLayout() = default;
+
+double TransitionEditorGraphicsLayout::rulerWidth() const
+{
+    return m_rulerItem->preferredWidth();
+}
+
+double TransitionEditorGraphicsLayout::rulerScaling() const
+{
+    return m_rulerItem->rulerScaling();
+}
+
+double TransitionEditorGraphicsLayout::rulerDuration() const
+{
+    return m_rulerItem->rulerDuration();
+}
+
+double TransitionEditorGraphicsLayout::endFrame() const
+{
+    return m_rulerItem->endFrame();
+}
+
+void TransitionEditorGraphicsLayout::setWidth(int width)
+{
+    m_rulerItem->setSizeHints(width);
+    m_placeholder1->setMinimumWidth(width);
+    m_placeholder2->setMinimumWidth(width);
+    setPreferredWidth(width);
+    setMaximumWidth(width);
+}
+
+void TransitionEditorGraphicsLayout::setTransition(const ModelNode &transition)
+{
+    m_layout->removeItem(m_rulerItem);
+    m_layout->removeItem(m_placeholder1);
+    m_layout->removeItem(m_placeholder2);
+
+    m_rulerItem->setParentItem(nullptr);
+    m_placeholder1->setParentItem(nullptr);
+    m_placeholder2->setParentItem(nullptr);
+
+    qDeleteAll(this->childItems());
+
+    m_rulerItem->setParentItem(this);
+
+    qreal duration = 2000;
+    if (transition.isValid() && transition.hasAuxiliaryData("transitionDuration"))
+        duration = transition.auxiliaryData("transitionDuration").toDouble();
+
+    setDuration(duration);
+    m_layout->addItem(m_rulerItem);
+
+    m_placeholder1->setParentItem(this);
+    m_layout->addItem(m_placeholder1);
+
+    m_layout->invalidate();
+
+    if (transition.isValid() && !transition.directSubModelNodes().isEmpty()) {
+        for (const ModelNode &parallel : transition.directSubModelNodes()) {
+            auto item = TransitionEditorSectionItem::create(parallel, this);
+            m_layout->addItem(item);
+        }
+    }
+
+    m_placeholder2->setParentItem(this);
+    m_layout->addItem(m_placeholder2);
+
+    if (auto *scene = timelineScene())
+        if (auto *view = scene->timelineView())
+            if (!transition.isValid() && view->isAttached())
+                emit scaleFactorChanged(0);
+}
+
+void TransitionEditorGraphicsLayout::setDuration(qreal duration)
+{
+    m_rulerItem->invalidateRulerSize(duration);
+}
+
+void TransitionEditorGraphicsLayout::setRulerScaleFactor(int factor)
+{
+    m_rulerItem->setRulerScaleFactor(factor);
+}
+
+void TransitionEditorGraphicsLayout::invalidate()
+{
+    m_layout->invalidate();
+}
+
+int TransitionEditorGraphicsLayout::maximumScrollValue() const
+{
+    const qreal w = this->geometry().width() - qreal(TimelineConstants::sectionWidth);
+    const qreal duration = m_rulerItem->rulerDuration() + m_rulerItem->rulerDuration() * 0.1;
+    const qreal maxr = m_rulerItem->rulerScaling() * duration - w;
+    return std::round(qMax(maxr, 0.0));
+}
+
+void TransitionEditorGraphicsLayout::activate()
+{
+    m_layout->activate();
+}
+
+TimelineRulerSectionItem *TransitionEditorGraphicsLayout::ruler() const
+{
+    return m_rulerItem;
+}
+
+} // End namespace QmlDesigner.