Add toolbar for anim viewport and some more camera controls.

Signed-off-by: rhhong <rhhong@amazon.com>

Gems/AtomLyIntegration/EMotionFXAtom/Assets/Icons/Camera_category.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg width="24px" height="24px" viewBox="0 0 24 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <!-- Generator: Sketch 60 (88103) - https://sketch.com -->
+    <title>Icons / Video Control / Video</title>
+    <desc>Created with Sketch.</desc>
+    <g id="Icons-/-Video-Control-/-Video" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+        <rect id="Path" fill-opacity="0" fill="#E9E9E9" x="0" y="0" width="24" height="24"></rect>
+        <polygon id="Combined-Shape" fill="#FFFFFF" points="20 19 15 14 15 20 2 20 2 4 15 4 15 10 20 5 22 5 22 19"></polygon>
+    </g>
+</svg>

Gems/AtomLyIntegration/EMotionFXAtom/Assets/Icons/Resources.qrc

@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/EMotionFXAtom">
+        <file>Camera_category.svg</file>
+    </qresource>
+</RCC>

Gems/AtomLyIntegration/EMotionFXAtom/Code/CMakeLists.txt

@@ -49,6 +49,7 @@ if(PAL_TRAIT_BUILD_HOST_TOOLS)
         NAME EMotionFX_Atom.Editor GEM_MODULE
 
         NAMESPACE Gem
+        AUTORCC
         FILES_CMAKE
             emotionfx_atom_editor_files.cmake
         INCLUDE_DIRECTORIES

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportRenderer.cpp

@@ -181,6 +181,20 @@ namespace EMStudio
         ResetEnvironment();
     }
 
+    AZ::Vector3 AnimViewportRenderer::GetCenter() const
+    {
+        AZ::Vector3 result = AZ::Vector3::CreateZero();
+        if (!m_actorEntities.empty())
+        {
+            // Just return the position of the first entity.
+            AZ::Transform worldTransform;
+            AZ::TransformBus::EventResult(worldTransform, m_actorEntities[0]->GetId(), &AZ::TransformBus::Events::GetWorldTM);
+            result = worldTransform.GetTranslation();
+        }
+
+        return result;
+    }
+
     void AnimViewportRenderer::ResetEnvironment()
     {
         // Reset environment

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportRenderer.h

@@ -49,6 +49,9 @@ namespace EMStudio
 
         void Reinit();
 
+        //! Return the center position of the existing objects.
+        AZ::Vector3 GetCenter() const;
+
     private:
 
         // This function resets the light, camera and other environment settings.

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportRequestBus.h

@@ -0,0 +1,41 @@
+/*
+ * 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/EBus/EBus.h>
+
+
+namespace EMStudio
+{
+    enum CameraViewMode
+    {
+        FRONT,
+        BACK,
+        TOP,
+        BOTTOM,
+        LEFT,
+        RIGHT,
+        DEFAULT
+    };
+
+    class AnimViewportRequests
+        : public AZ::EBusTraits
+    {
+    public:
+        static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
+        static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
+
+        //! Reset the camera to initial state.
+        virtual void ResetCamera() = 0;
+
+        //! Set the camera view mode.
+        virtual void SetCameraViewMode(CameraViewMode mode) = 0;
+    };
+
+    using AnimViewportRequestBus = AZ::EBus<AnimViewportRequests>;
+} // namespace EMStudio

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportToolBar.cpp

@@ -0,0 +1,60 @@
+/*
+ * 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 <QToolButton>
+#include <QMenu>
+#include <EMStudio/AnimViewportToolBar.h>
+#include <EMStudio/AnimViewportRequestBus.h>
+#include <AzCore/std/string/string.h>
+#include <AzQtComponents/Components/Widgets/ToolBar.h>
+
+
+namespace EMStudio
+{
+    AnimViewportToolBar::AnimViewportToolBar(QWidget* parent)
+        : QToolBar(parent)
+    {
+        AzQtComponents::ToolBar::addMainToolBarStyle(this);
+
+        // Add the camera button
+        QToolButton* cameraButton = new QToolButton(this);
+        QMenu* cameraMenu = new QMenu(cameraButton);
+
+        // Add the camera option
+        const AZStd::vector<AZStd::pair<CameraViewMode, AZStd::string>> cameraOptionNames = {
+            { CameraViewMode::FRONT, "Front" },   { CameraViewMode::BACK, "Back" }, { CameraViewMode::TOP, "Top" },
+            { CameraViewMode::BOTTOM, "Bottom" }, { CameraViewMode::LEFT, "Left" }, { CameraViewMode::RIGHT, "Right" },
+        };
+
+        for (const auto& pair : cameraOptionNames)
+        {
+            CameraViewMode mode = pair.first;
+            cameraMenu->addAction(
+                pair.second.c_str(),
+                [mode]()
+                {
+                    // Send the reset camera event.
+                    AnimViewportRequestBus::Broadcast(&AnimViewportRequestBus::Events::SetCameraViewMode, mode);
+                });
+        }
+
+        cameraMenu->addSeparator();
+        cameraMenu->addAction("Reset Camera",
+            []()
+            {
+                // Send the reset camera event.
+                AnimViewportRequestBus::Broadcast(&AnimViewportRequestBus::Events::ResetCamera);
+            });
+        cameraButton->setMenu(cameraMenu);
+        cameraButton->setText("Camera Option");
+        cameraButton->setPopupMode(QToolButton::InstantPopup);
+        cameraButton->setVisible(true);
+        cameraButton->setIcon(QIcon(":/EMotionFXAtom/Camera_category.svg"));
+        addWidget(cameraButton);
+    }
+} // namespace EMStudio

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportToolBar.h

@@ -0,0 +1,24 @@
+/*
+ * 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
+
+#if !defined(Q_MOC_RUN)
+#include <QAction>
+#include <QToolBar>
+#endif
+
+namespace EMStudio
+{
+    class AnimViewportToolBar : public QToolBar
+    {
+    public:
+        AnimViewportToolBar(QWidget* parent = nullptr);
+        ~AnimViewportToolBar() = default;
+    };
+}

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.cpp

@@ -34,6 +34,23 @@ namespace EMStudio
 
         SetupCameras();
         SetupCameraController();
+        Reinit();
+
+        AnimViewportRequestBus::Handler::BusConnect();
+    }
+
+    AnimViewportWidget::~AnimViewportWidget()
+    {
+        AnimViewportRequestBus::Handler::BusDisconnect();
+    }
+
+    void AnimViewportWidget::Reinit(bool resetCamera)
+    {
+        if (resetCamera)
+        {
+            ResetCamera();
+        }
+        m_renderer->Reinit();
     }
 
     void AnimViewportWidget::SetupCameras()
@@ -100,4 +117,43 @@ namespace EMStudio
             });
         GetControllerList()->Add(controller);
     }
+
+    void AnimViewportWidget::ResetCamera()
+    {
+        SetCameraViewMode(CameraViewMode::DEFAULT);
+    }
+
+    void AnimViewportWidget::SetCameraViewMode([[maybe_unused]]CameraViewMode mode)
+    {
+        // Set the camera view mode.
+        AZ::Vector3 targetPosition = m_renderer->GetCenter();
+        targetPosition.SetZ(targetPosition.GetY() + TargetCenterOffsetZ);
+        AZ::Vector3 cameraPosition;
+        switch (mode)
+        {
+        case CameraViewMode::FRONT:
+            cameraPosition.Set(0.0f, CameraDistance, targetPosition.GetZ());
+            break;
+        case CameraViewMode::BACK:
+            cameraPosition.Set(0.0f, -CameraDistance, targetPosition.GetZ());
+            break;
+        case CameraViewMode::TOP:
+            cameraPosition.Set(0.0f, 0.0f, CameraDistance + targetPosition.GetZ());
+            break;
+        case CameraViewMode::BOTTOM:
+            cameraPosition.Set(0.0f, 0.0f, -CameraDistance + targetPosition.GetZ());
+            break;
+        case CameraViewMode::LEFT:
+            cameraPosition.Set(-CameraDistance, 0.0f, targetPosition.GetZ());
+            break;
+        case CameraViewMode::RIGHT:
+            cameraPosition.Set(CameraDistance, 0.0f, targetPosition.GetZ());
+            break;
+        case CameraViewMode::DEFAULT:
+            // The default view mode is looking from the top left of the character.
+            cameraPosition.Set(-CameraDistance, CameraDistance, CameraDistance + targetPosition.GetZ());
+            break;
+        }
+        GetViewportContext()->SetCameraTransform(AZ::Transform::CreateLookAt(cameraPosition, targetPosition));
+    }
 } // namespace EMStudio

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.h

@@ -9,6 +9,7 @@
 
 #include <AtomToolsFramework/Viewport/RenderViewportWidget.h>
 #include <AzFramework/Viewport/CameraInput.h>
+#include <EMStudio/AnimViewportRequestBus.h>
 
 namespace EMStudio
 {
@@ -16,15 +17,26 @@ namespace EMStudio
 
     class AnimViewportWidget
         : public AtomToolsFramework::RenderViewportWidget
+        , private AnimViewportRequestBus::Handler
     {
     public:
         AnimViewportWidget(QWidget* parent = nullptr);
+        ~AnimViewportWidget();
         AnimViewportRenderer* GetAnimViewportRenderer() { return m_renderer.get(); }
 
+        void Reinit(bool resetCamera = true);
+
     private:
         void SetupCameras();
         void SetupCameraController();
 
+        // AnimViewportRequestBus::Handler overrides
+        void ResetCamera();
+        void SetCameraViewMode(CameraViewMode mode);
+
+        static constexpr float CameraDistance = 2.0f;
+        static constexpr float TargetCenterOffsetZ = 1.0f;
+
         AZStd::unique_ptr<AnimViewportRenderer> m_renderer;
         AZStd::shared_ptr<AzFramework::RotateCameraInput> m_rotateCamera;
         AZStd::shared_ptr<AzFramework::TranslateCameraInput> m_translateCamera;

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AtomRenderPlugin.cpp

@@ -8,6 +8,7 @@
 
 #include <EMStudio/AtomRenderPlugin.h>
 #include <EMStudio/AnimViewportRenderer.h>
+#include <EMStudio/AnimViewportToolBar.h>
 
 #include <Integration/Components/ActorComponent.h>
 #include <EMotionFX/CommandSystem/Source/CommandManager.h>
@@ -76,7 +77,7 @@ namespace EMStudio
 
     void AtomRenderPlugin::ReinitRenderer()
     {
-        m_animViewportWidget->GetAnimViewportRenderer()->Reinit();
+        m_animViewportWidget->Reinit();
     }
 
     bool AtomRenderPlugin::Init()
@@ -88,6 +89,12 @@ namespace EMStudio
         verticalLayout->setSizeConstraint(QLayout::SetNoConstraint);
         verticalLayout->setSpacing(1);
         verticalLayout->setMargin(0);
+
+        // Add the tool bar
+        AnimViewportToolBar* toolBar = new AnimViewportToolBar(m_innerWidget);
+        verticalLayout->addWidget(toolBar);
+
+        // Add the viewport widget
         m_animViewportWidget = new AnimViewportWidget(m_innerWidget);
         verticalLayout->addWidget(m_animViewportWidget);
 

Gems/AtomLyIntegration/EMotionFXAtom/Code/emotionfx_atom_editor_files.cmake

@@ -7,6 +7,7 @@
 #
 
 set(FILES
+    ../Assets/Icons/Resources.qrc
     Source/ActorModule.cpp
     Source/Editor/EditorSystemComponent.h
     Source/Editor/EditorSystemComponent.cpp
@@ -18,4 +19,7 @@ set(FILES
     Tools/EMStudio/AnimViewportRenderer.cpp
     Tools/EMStudio/AnimViewportSettings.h
     Tools/EMStudio/AnimViewportSettings.cpp
+    Tools/EMStudio/AnimViewportToolBar.h
+    Tools/EMStudio/AnimViewportToolBar.cpp
+    Tools/EMStudio/AnimViewportRequestBus.h
 )