AtomToolsMainWindow

Signed-off-by: Dayo Lawal <lawalfua@amazon.com>

Gems/Atom/Tools/AtomToolsFramework/Code/Include/AtomToolsFramework/Window/AtomToolsMainWindow.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#pragma once
+#include <AzCore/Memory/SystemAllocator.h>
+
+#include <AzQtComponents/Components/DockMainWindow.h>
+#include <AzQtComponents/Components/FancyDocking.h>
+#include <AzQtComponents/Components/StyledDockWidget.h>
+#include <AzQtComponents/Components/Widgets/TabWidget.h>
+
+#include <QMenuBar>
+#include <QStatusBar>
+#include <QToolBar>
+
+namespace AtomToolsFramework
+{
+    class AtomToolsMainWindow
+        : public AzQtComponents::DockMainWindow
+    {
+    public:
+        AtomToolsMainWindow(QWidget* parent = 0);
+    protected:
+        AzQtComponents::FancyDocking* m_advancedDockManager = nullptr;
+        QWidget* m_centralWidget = nullptr;
+        QMenuBar* m_menuBar = nullptr;
+        AzQtComponents::TabWidget* m_tabWidget = nullptr;
+
+        virtual void SetupMenu();
+
+        virtual void SetupTabs();
+        virtual void AddTabForDocumentId(const AZ::Uuid& documentId);
+        virtual void RemoveTabForDocumentId(const AZ::Uuid& documentId);
+        virtual void UpdateTabForDocumentId(const AZ::Uuid& documentId);
+        virtual AZ::Uuid GetDocumentIdFromTab(const int tabIndex) const;
+        
+        virtual void OpenTabContextMenu();
+        virtual void SelectPreviousTab();
+        virtual void SelectNextTab();
+
+        QMenu* m_menuFile = {};
+    };
+}

Gems/Atom/Tools/AtomToolsFramework/Code/Source/Window/AtomToolsMainWindow.cpp

@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <AtomToolsFramework/Window/AtomToolsMainWindow.h>
+
+
+namespace AtomToolsFramework
+{
+    AtomToolsMainWindow::AtomToolsMainWindow(QWidget* parent)
+        : AzQtComponents::DockMainWindow(parent)
+    {
+        m_advancedDockManager = new AzQtComponents::FancyDocking(this);
+
+        setDockNestingEnabled(true);
+        setCorner(Qt::TopLeftCorner, Qt::LeftDockWidgetArea);
+        setCorner(Qt::BottomLeftCorner, Qt::LeftDockWidgetArea);
+        setCorner(Qt::TopRightCorner, Qt::RightDockWidgetArea);
+        setCorner(Qt::BottomRightCorner, Qt::RightDockWidgetArea);
+
+        m_menuBar = new QMenuBar(this);
+        m_menuBar->setObjectName("MenuBar");
+        setMenuBar(m_menuBar);
+
+        m_centralWidget = new QWidget(this);
+        m_tabWidget = new AzQtComponents::TabWidget(m_centralWidget);
+        m_tabWidget->setObjectName("TabWidget");
+        m_tabWidget->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
+        m_tabWidget->setContentsMargins(0, 0, 0, 0);
+    }
+
+    void AtomToolsMainWindow::SetupMenu()
+    {
+        // Generating the main menu manually because it's easier and we will have some dynamic or data driven entries
+        m_menuFile = m_menuBar->addMenu("&File");
+    }
+
+    void AtomToolsMainWindow::SetupTabs()
+    {
+        // The tab bar should only be visible if it has active documents
+        m_tabWidget->setVisible(false);
+        m_tabWidget->setTabBarAutoHide(false);
+        m_tabWidget->setMovable(true);
+        m_tabWidget->setTabsClosable(true);
+        m_tabWidget->setUsesScrollButtons(true);
+
+        // Add context menu for right-clicking on tabs
+        m_tabWidget->setContextMenuPolicy(Qt::ContextMenuPolicy::CustomContextMenu);
+        connect(m_tabWidget, &QWidget::customContextMenuRequested, this, [this]() {
+            OpenTabContextMenu();
+        });
+    }
+
+    void AtomToolsMainWindow::AddTabForDocumentId(const AZ::Uuid& documentId)
+    {
+        // Blocking signals from the tab bar so the currentChanged signal is not sent while a document is already being opened.
+        // This prevents the OnDocumentOpened notification from being sent recursively.
+        const QSignalBlocker blocker(m_tabWidget);
+
+        // If a tab for this document already exists then select it instead of creating a new one
+        for (int tabIndex = 0; tabIndex < m_tabWidget->count(); ++tabIndex)
+        {
+            if (documentId == GetDocumentIdFromTab(tabIndex))
+            {
+                m_tabWidget->setCurrentIndex(tabIndex);
+                m_tabWidget->repaint();
+                return;
+            }
+        }
+    }
+
+    void AtomToolsMainWindow::RemoveTabForDocumentId(const AZ::Uuid& documentId)
+    {
+        // We are not blocking signals here because we want closing tabs to close the associated document
+        // and automatically select the next document.
+        for (int tabIndex = 0; tabIndex < m_tabWidget->count(); ++tabIndex)
+        {
+            if (documentId == GetDocumentIdFromTab(tabIndex))
+            {
+                m_tabWidget->removeTab(tabIndex);
+                m_tabWidget->setVisible(m_tabWidget->count() > 0);
+                m_tabWidget->repaint();
+                break;
+            }
+        }
+    }
+
+    void AtomToolsMainWindow::UpdateTabForDocumentId(const AZ::Uuid& documentId)
+    {
+        // Whenever a document is opened, saved, or modified we need to update the tab label
+        if (!documentId.IsNull())
+        {
+            return;
+        }
+    }
+
+    AZ::Uuid AtomToolsMainWindow::GetDocumentIdFromTab(const int tabIndex) const
+    {
+        const QVariant tabData = m_tabWidget->tabBar()->tabData(tabIndex);
+        if (!tabData.isNull())
+        {
+            // We need to be able to convert between a UUID and a string to store and retrieve a document ID from the tab bar
+            const QString documentIdString = tabData.toString();
+            const QByteArray documentIdBytes = documentIdString.toUtf8();
+            const AZ::Uuid documentId(documentIdBytes.data(), documentIdBytes.size());
+            return documentId;
+        }
+        return AZ::Uuid::CreateNull();
+    }
+
+    void AtomToolsMainWindow::OpenTabContextMenu()
+    {
+    }
+    
+    void AtomToolsMainWindow::SelectPreviousTab()
+    {
+        if (m_tabWidget->count() > 1)
+        {
+            // Adding count to wrap around when index <= 0
+            m_tabWidget->setCurrentIndex((m_tabWidget->currentIndex() + m_tabWidget->count() - 1) % m_tabWidget->count());
+        }
+    }
+
+    void AtomToolsMainWindow::SelectNextTab()
+    {
+        if (m_tabWidget->count() > 1)
+        {
+            m_tabWidget->setCurrentIndex((m_tabWidget->currentIndex() + 1) % m_tabWidget->count());
+        }
+    }
+}

Gems/Atom/Tools/AtomToolsFramework/Code/atomtoolsframework_files.cmake

@@ -24,6 +24,7 @@ set(FILES
     Include/AtomToolsFramework/Viewport/RenderViewportWidget.h
     Include/AtomToolsFramework/Viewport/ModularViewportCameraController.h
     Include/AtomToolsFramework/Viewport/ModularViewportCameraControllerRequestBus.h
+	Include/AtomToolsFramework/Window/AtomToolsMainWindow.h
     Source/Application/AtomToolsApplication.cpp
     Source/Communication/LocalServer.cpp
     Source/Communication/LocalSocket.cpp
@@ -40,4 +41,5 @@ set(FILES
     Source/Util/Util.cpp
     Source/Viewport/RenderViewportWidget.cpp
     Source/Viewport/ModularViewportCameraController.cpp
+	Source/Window/AtomToolsMainWindow.cpp
 )