Use source model data instead of filtered (#5071)

Signed-off-by: AMZN-alexpete <26804013+AMZN-alexpete@users.noreply.github.com>

Code/Tools/ProjectManager/Source/GemCatalog/GemCatalogScreen.cpp

@@ -145,10 +145,11 @@ namespace O3DE::ProjectManager
         }
     }
 
-    void GemCatalogScreen::OnGemStatusChanged(const QModelIndex& modelIndex, uint32_t numChangedDependencies) 
+    void GemCatalogScreen::OnGemStatusChanged(const QString& gemName, uint32_t numChangedDependencies) 
     {
         if (m_notificationsEnabled)
         {
+            QModelIndex modelIndex = m_gemModel->FindIndexByNameString(gemName);
             bool added = GemModel::IsAdded(modelIndex);
             bool dependency = GemModel::IsAddedDependency(modelIndex);
 
@@ -233,7 +234,11 @@ namespace O3DE::ProjectManager
                 const QVector<GemInfo> allRepoGemInfos = allRepoGemInfosResult.GetValue();
                 for (const GemInfo& gemInfo : allRepoGemInfos)
                 {
-                    m_gemModel->AddGem(gemInfo);
+                    // do not add gems that have already been downloaded
+                    if (!m_gemModel->FindIndexByNameString(gemInfo.m_name).isValid())
+                    {
+                        m_gemModel->AddGem(gemInfo);
+                    }
                 }
             }
             else
@@ -257,7 +262,8 @@ namespace O3DE::ProjectManager
                         GemModel::SetWasPreviouslyAdded(*m_gemModel, modelIndex, true);
                         GemModel::SetIsAdded(*m_gemModel, modelIndex, true);
                     }
-                    else
+                    // ${Name} is a special name used in templates and is not really an error
+                    else if (enabledGemName != "${Name}")
                     {
                         AZ_Warning("ProjectManager::GemCatalog", false,
                             "Cannot find entry for gem with name '%s'. The CMake target name probably does not match the specified name in the gem.json.",

Code/Tools/ProjectManager/Source/GemCatalog/GemCatalogScreen.h

@@ -46,7 +46,7 @@ namespace O3DE::ProjectManager
         DownloadController* GetDownloadController() const { return m_downloadController; }
 
     public slots:
-        void OnGemStatusChanged(const QModelIndex& modelIndex, uint32_t numChangedDependencies);
+        void OnGemStatusChanged(const QString& gemName, uint32_t numChangedDependencies);
         void OnAddGemClicked();
 
     protected:

Code/Tools/ProjectManager/Source/GemCatalog/GemModel.cpp

@@ -276,9 +276,11 @@ namespace O3DE::ProjectManager
 
     void GemModel::SetIsAdded(QAbstractItemModel& model, const QModelIndex& modelIndex, bool isAdded)
     {
+        // get the gemName first, because the modelIndex data change after adding because of filters
+        QString gemName = modelIndex.data(RoleName).toString();
         model.setData(modelIndex, isAdded, RoleIsAdded);
 
-        UpdateDependencies(model, modelIndex);
+        UpdateDependencies(model, gemName, isAdded);
     }
 
     bool GemModel::HasDependentGems(const QModelIndex& modelIndex) const
@@ -294,15 +296,17 @@ namespace O3DE::ProjectManager
         return false;
     }
 
-    void GemModel::UpdateDependencies(QAbstractItemModel& model, const QModelIndex& modelIndex)
+    void GemModel::UpdateDependencies(QAbstractItemModel& model, const QString& gemName, bool isAdded)
     {
         GemModel* gemModel = GetSourceModel(&model);
         AZ_Assert(gemModel, "Failed to obtain GemModel");
 
+        QModelIndex modelIndex = gemModel->FindIndexByNameString(gemName);
+
         QVector<QModelIndex> dependencies = gemModel->GatherGemDependencies(modelIndex);
         uint32_t numChangedDependencies = 0;
 
-        if (IsAdded(modelIndex))
+        if (isAdded)
         {
             for (const QModelIndex& dependency : dependencies)
             {
@@ -324,7 +328,7 @@ namespace O3DE::ProjectManager
             bool hasDependentGems = gemModel->HasDependentGems(modelIndex);
             if (IsAddedDependency(modelIndex) != hasDependentGems)
             {
-                SetIsAddedDependency(model, modelIndex, hasDependentGems);
+                SetIsAddedDependency(*gemModel, modelIndex, hasDependentGems);
             }
 
             for (const QModelIndex& dependency : dependencies)
@@ -343,7 +347,7 @@ namespace O3DE::ProjectManager
             }
         }
 
-        gemModel->emit gemStatusChanged(modelIndex, numChangedDependencies);
+        gemModel->emit gemStatusChanged(gemName, numChangedDependencies);
     }
 
     void GemModel::SetIsAddedDependency(QAbstractItemModel& model, const QModelIndex& modelIndex, bool isAdded)

Code/Tools/ProjectManager/Source/GemCatalog/GemModel.h

@@ -64,7 +64,7 @@ namespace O3DE::ProjectManager
         static bool NeedsToBeAdded(const QModelIndex& modelIndex, bool includeDependencies = false);
         static bool NeedsToBeRemoved(const QModelIndex& modelIndex, bool includeDependencies = false);
         static bool HasRequirement(const QModelIndex& modelIndex);
-        static void UpdateDependencies(QAbstractItemModel& model, const QModelIndex& modelIndex);
+        static void UpdateDependencies(QAbstractItemModel& model, const QString& gemName, bool isAdded);
         static void SetDownloadStatus(QAbstractItemModel& model, const QModelIndex& modelIndex, GemInfo::DownloadStatus status);
 
         bool DoGemsToBeAddedHaveRequirements() const;
@@ -78,7 +78,7 @@ namespace O3DE::ProjectManager
         int TotalAddedGems(bool includeDependencies = false) const;
 
     signals:
-        void gemStatusChanged(const QModelIndex& modelIndex, uint32_t numChangedDependencies);
+        void gemStatusChanged(const QString& gemName, uint32_t numChangedDependencies);
 
     private:
         void FindGemDisplayNamesByNameStrings(QStringList& inOutGemNames);