1 files changed, 130 insertions, 0 deletions
diff --git a/src/Authoring/Qt3DStudio/Palettes/TimelineGraphicsView/ui/NavigationBar.cpp b/src/Authoring/Qt3DStudio/Palettes/TimelineGraphicsView/ui/NavigationBar.cpp
new file mode 100644
index 00000000..f41c2952
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+++ b/src/Authoring/Qt3DStudio/Palettes/TimelineGraphicsView/ui/NavigationBar.cpp
@@ -0,0 +1,130 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "NavigationBar.h"
+#include "NavigationBarItem.h"
+#include "TimelineConstants.h"
+#include <QtCore/qdebug.h>
+
+NavigationBar::NavigationBar(QWidget *parent)
+    : QWidget(parent)
+{
+    setMaximumHeight(0);
+    m_layout = new QHBoxLayout(this);
+    m_layout->setMargin(4);
+    m_layout->setSpacing(4);
+    setLayout(m_layout);
+    // Initialize hide/show animation
+    m_expandAnimation.setTargetObject(this);
+    m_expandAnimation.setPropertyName("maximumHeight");
+    m_expandAnimation.setDuration(TimelineConstants::EXPAND_ANIMATION_DURATION);
+}
+
+void NavigationBar::updateNavigationItems(IBreadCrumbProvider *inBreadCrumbProvider)
+{
+    if (!inBreadCrumbProvider)
+        return;
+
+    m_breadCrumbProvider = inBreadCrumbProvider;
+
+    const IBreadCrumbProvider::TTrailList &trailList = m_breadCrumbProvider->GetTrail();
+    int listSize = (int)trailList.size();
+
+    // Remove "stretch" from end
+    QLayoutItem *stretch = m_layout->takeAt(m_layout->count() - 1);
+    if (stretch)
+        delete stretch;
+
+    // Update current items or create new as needed
+    for (int i = 0; i < listSize; ++i) {
+        SBreadCrumb item = trailList.at(i);
+        NavigationBarItem *barItem = nullptr;
+        bool newItem = (m_itemAmount <= 0) || (i > m_itemAmount - 1);
+        if (newItem) {
+            barItem = new NavigationBarItem(this);
+        } else {
+            // Every other item is NavigationBarItem, every other separator
+            int barItemIndex = i * 2;
+            barItem = static_cast<NavigationBarItem *>(
+                        m_layout->itemAt(barItemIndex)->widget());
+            barItem->setHighlight(false);
+        }
+        bool isLastItem = (i == listSize - 1);
+        barItem->setEnabled(!isLastItem);
+        barItem->setIndex(i);
+        barItem->setText(item.m_String);
+        if (i == 0)
+            barItem->setIcon(m_breadCrumbProvider->GetRootImage());
+        else
+            barItem->setIcon(m_breadCrumbProvider->GetBreadCrumbImage());
+
+        if (newItem) {
+            QObject::connect(barItem, &NavigationBarItem::clicked,
+                             this, &NavigationBar::itemClicked);
+            if (i != 0) {
+                // Separator before all items except first
+                QLabel *separator = new QLabel(this);
+                separator->setPixmap(m_breadCrumbProvider->GetSeparatorImage());
+                m_layout->addWidget(separator);
+            }
+            m_layout->addWidget(barItem);
+        }
+    }
+
+    // Remove possible extra items, when user navigates back
+    // First item (scene) is never removed
+    QLayoutItem *child;
+    int lastIndex = (listSize <= 1) ? 1 : (listSize * 2) - 1;
+    while ((child = m_layout->takeAt(lastIndex)) != 0) {
+        if (child->widget())
+            delete child->widget();
+        delete child;
+    }
+
+    // When list contains single item (scene), hide the bar
+    setBarVisibility(listSize > 1);
+
+    // Stretch at end for proper item sizing
+    m_layout->addStretch(1);
+
+    m_itemAmount = listSize;
+}
+
+void NavigationBar::itemClicked(int index)
+{
+    m_breadCrumbProvider->OnBreadCrumbClicked((long)index);
+}
+
+void NavigationBar::setBarVisibility(bool visible)
+{
+    int endHeight = visible ? TimelineConstants::NAVIGATION_BAR_H : 0;
+    if (height() != endHeight) {
+        m_expandAnimation.setEndValue(endHeight);
+        m_expandAnimation.start();
+    }
+}