Add no repositories added screen

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

Code/Tools/ProjectManager/Resources/ProjectManager.qss

@@ -556,17 +556,20 @@ QProgressBar::chunk {
     font-size: 12px;
 }
 
+#gemRepoNoReposLabel {
+    font-size: 16px;
+}
+
 #gemRepoHeaderRefreshButton {
     background-color: transparent;
     qproperty-flat: true;
     qproperty-iconSize: 14px;
 }
 
-#gemRepoHeaderAddButton {
+#gemRepoAddButton {
     background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
                             stop: 0 #888888, stop: 1.0 #555555);
     qproperty-flat: true;
-    margin-right:30px;
     min-width:120px;
     max-width:120px;
     min-height:24px;
@@ -576,11 +579,11 @@ QProgressBar::chunk {
     font-size:12px;
     font-weight:600;
 }
-#gemRepoHeaderAddButton:hover {
+#gemRepoAddButton:hover {
     background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
                             stop: 0 #999999, stop: 1.0 #666666);
 }
-#gemRepoHeaderAddButton:pressed {
+#gemRepoAddButton:pressed {
     background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
                             stop: 0 #555555, stop: 1.0 #777777);
 }

Code/Tools/ProjectManager/Source/GemRepo/GemRepoAddDialog.cpp

@@ -0,0 +1,18 @@
+/*
+ * 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 <GemRepo/GemRepoAddDialog.h>
+
+namespace O3DE::ProjectManager
+{
+    GemRepoAddDialog::GemRepoAddDialog(QWidget* parent)
+        : QDialog(parent)
+    {
+
+    }
+} // namespace O3DE::ProjectManager

Code/Tools/ProjectManager/Source/GemRepo/GemRepoAddDialog.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 <QDialog.h>
+#endif
+
+namespace O3DE::ProjectManager
+{
+    class GemRepoAddDialog
+        : public QDialog
+    {
+    public:
+        explicit GemRepoAddDialog(QWidget* parent = nullptr);
+        ~GemRepoAddDialog() = default;
+    };
+} // namespace O3DE::ProjectManager

Code/Tools/ProjectManager/Source/GemRepo/GemRepoScreen.cpp

@@ -20,6 +20,8 @@
 #include <QLabel>
 #include <QHeaderView>
 #include <QTableWidget>
+#include <QFrame>
+#include <QStackedWidget>
 
 namespace O3DE::ProjectManager
 {
@@ -33,11 +35,108 @@ namespace O3DE::ProjectManager
         vLayout->setSpacing(0);
        setLayout(vLayout);
 
+        m_contentStack = new QStackedWidget(this);
+
+        m_noRepoContent = CreateNoReposContent();
+        m_contentStack->addWidget(m_noRepoContent);
+
+        m_repoContent = CreateReposContent();
+        m_contentStack->addWidget(m_repoContent);
+
+        vLayout->addWidget(m_contentStack);
+
+        Reinit();
+    }
+
+    void GemRepoScreen::Reinit()
+    {
+        m_gemRepoModel->clear();
+        FillModel();
+
+        // If model contains any data show the repos
+        if (m_gemRepoModel->rowCount())
+        {
+            m_contentStack->setCurrentWidget(m_repoContent);
+        }
+        else
+        {
+            m_contentStack->setCurrentWidget(m_noRepoContent);
+        }
+
+        // Select the first entry after everything got correctly sized
+        QTimer::singleShot(200, [=]{
+            QModelIndex firstModelIndex = m_gemRepoListView->model()->index(0,0);
+            m_gemRepoListView->selectionModel()->select(firstModelIndex, QItemSelectionModel::ClearAndSelect);
+        });
+    }
+
+    void GemRepoScreen::FillModel()
+    {
+        AZ::Outcome<QVector<GemRepoInfo>, AZStd::string> allGemRepoInfosResult = PythonBindingsInterface::Get()->GetAllGemRepoInfos();
+        if (allGemRepoInfosResult.IsSuccess())
+        {
+            // Add all available repos to the model
+            const QVector<GemRepoInfo> allGemRepoInfos = allGemRepoInfosResult.GetValue();
+            for (const GemRepoInfo& gemRepoInfo : allGemRepoInfos)
+            {
+                m_gemRepoModel->AddGemRepo(gemRepoInfo);
+            }
+        }
+        else
+        {
+            QMessageBox::critical(this, tr("Operation failed"), QString("Cannot retrieve gem repos for engine.\n\nError:\n%2").arg(allGemRepoInfosResult.GetError().c_str()));
+        }
+    }
+
+    QFrame* GemRepoScreen::CreateNoReposContent()
+    {
+        QFrame* contentFrame = new QFrame(this);
+
+        QVBoxLayout* vLayout = new QVBoxLayout();
+        vLayout->setAlignment(Qt::AlignHCenter);
+        vLayout->setMargin(0);
+        vLayout->setSpacing(0);
+        contentFrame->setLayout(vLayout);
+
+        vLayout->addStretch();
+
+        QLabel* noRepoLabel = new QLabel(tr("No repositories have been added yet."), this);
+        noRepoLabel->setObjectName("gemRepoNoReposLabel");
+        vLayout->addWidget(noRepoLabel);
+        vLayout->setAlignment(noRepoLabel, Qt::AlignHCenter);
+
+        vLayout->addSpacing(20);
+
+        // Size hint for button is wrong so horizontal layout with stretch is used to center it
         QHBoxLayout* hLayout = new QHBoxLayout();
         hLayout->setMargin(0);
         hLayout->setSpacing(0);
+
+        hLayout->addStretch();
+
+        m_AddRepoButton = new QPushButton(tr("Add Repository"), this);
+        m_AddRepoButton->setObjectName("gemRepoAddButton");
+        m_AddRepoButton->setMinimumWidth(120);
+        hLayout->addWidget(m_AddRepoButton);
+
+        hLayout->addStretch();
+
         vLayout->addLayout(hLayout);
 
+        vLayout->addStretch();
+
+        return contentFrame;
+    }
+
+    QFrame* GemRepoScreen::CreateReposContent()
+    {
+        QFrame* contentFrame = new QFrame(this);
+
+        QHBoxLayout* hLayout = new QHBoxLayout();
+        hLayout->setMargin(0);
+        hLayout->setSpacing(0);
+        contentFrame->setLayout(hLayout);
+
         hLayout->addSpacing(60);
 
         m_gemRepoInspector = new QFrame(this);
@@ -67,9 +166,11 @@ namespace O3DE::ProjectManager
         topMiddleHLayout->addSpacerItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum));
 
         m_AddRepoButton = new QPushButton(tr("Add Repository"), this);
-        m_AddRepoButton->setObjectName("gemRepoHeaderAddButton");
+        m_AddRepoButton->setObjectName("gemRepoAddButton");
         topMiddleHLayout->addWidget(m_AddRepoButton);
 
+        topMiddleHLayout->addSpacing(30);
+
         middleVLayout->addLayout(topMiddleHLayout);
 
         middleVLayout->addSpacing(30);
@@ -105,37 +206,7 @@ namespace O3DE::ProjectManager
         hLayout->addLayout(middleVLayout);
         hLayout->addWidget(m_gemRepoInspector);
 
-        Reinit();
-    }
-
-    void GemRepoScreen::Reinit()
-    {
-        m_gemRepoModel->clear();
-        FillModel();
-
-        // Select the first entry after everything got correctly sized
-        QTimer::singleShot(200, [=]{
-            QModelIndex firstModelIndex = m_gemRepoListView->model()->index(0,0);
-            m_gemRepoListView->selectionModel()->select(firstModelIndex, QItemSelectionModel::ClearAndSelect);
-            });
-    }
-
-    void GemRepoScreen::FillModel()
-    {
-        AZ::Outcome<QVector<GemRepoInfo>, AZStd::string> allGemRepoInfosResult = PythonBindingsInterface::Get()->GetAllGemRepoInfos();
-        if (allGemRepoInfosResult.IsSuccess())
-        {
-            // Add all available repos to the model
-            const QVector<GemRepoInfo> allGemRepoInfos = allGemRepoInfosResult.GetValue();
-            for (const GemRepoInfo& gemRepoInfo : allGemRepoInfos)
-            {
-                m_gemRepoModel->AddGemRepo(gemRepoInfo);
-            }
-        }
-        else
-        {
-            QMessageBox::critical(this, tr("Operation failed"), QString("Cannot retrieve gem repos for engine.\n\nError:\n%2").arg(allGemRepoInfosResult.GetError().c_str()));
-        }
+        return contentFrame;
     }
 
     ProjectManagerScreen GemRepoScreen::GetScreenEnum()

Code/Tools/ProjectManager/Source/GemRepo/GemRepoScreen.h

@@ -16,6 +16,8 @@ QT_FORWARD_DECLARE_CLASS(QLabel)
 QT_FORWARD_DECLARE_CLASS(QPushButton)
 QT_FORWARD_DECLARE_CLASS(QHeaderView)
 QT_FORWARD_DECLARE_CLASS(QTableWidget)
+QT_FORWARD_DECLARE_CLASS(QFrame)
+QT_FORWARD_DECLARE_CLASS(QStackedWidget)
 
 namespace O3DE::ProjectManager
 {
@@ -36,6 +38,12 @@ namespace O3DE::ProjectManager
 
     private:
         void FillModel();
+        QFrame* CreateNoReposContent();
+        QFrame* CreateReposContent();
+
+        QStackedWidget* m_contentStack = nullptr;
+        QFrame* m_noRepoContent;
+        QFrame* m_repoContent;
 
         QTableWidget* m_gemRepoHeaderTable = nullptr;
         QHeaderView* m_gemRepoListHeader = nullptr;

Code/Tools/ProjectManager/project_manager_files.cmake

@@ -102,6 +102,8 @@ set(FILES
     Source/GemCatalog/GemSortFilterProxyModel.cpp
     Source/GemRepo/GemRepoScreen.h
     Source/GemRepo/GemRepoScreen.cpp
+    Source/GemRepo/GemRepoAddDialog.h
+    Source/GemRepo/GemRepoAddDialog.cpp
     Source/GemRepo/GemRepoInfo.h
     Source/GemRepo/GemRepoInfo.cpp
     Source/GemRepo/GemRepoItemDelegate.h