Add attribute to mark parts of install tree unstable

This commit adds new AllowUnstableComponents configuration. Setting
AllowUnstablecomponents to true in config.xml will
* allow installing other components when there are errors in scripts
* allow installing other components when there are missing dependencies
* will mark the 'broken' components uninstallable in treeview

Task-number: QTIFW-930
Change-Id: I8d28cf9c4b0401e0bb76795e87d581f39b64f128
Reviewed-by: Iikka Eklund <iikka.eklund@qt.io>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/libs/installer/componentmodel.cpp b/src/libs/installer/componentmodel.cpp
index 0f8a47c38..078afc50a 100644
--- a/src/libs/installer/componentmodel.cpp
+++ b/src/libs/installer/componentmodel.cpp
@@ -222,14 +222,15 @@ QVariant ComponentModel::data(const QModelIndex &index, int role) const
                 return component->data(Qt::UserRole + index.column());
         }
         if (role == Qt::CheckStateRole) {
-            if (!component->isCheckable())
-                return QVariant();
-            if (!component->autoDependencies().isEmpty())
+            if (!component->isCheckable() || !component->autoDependencies().isEmpty() || component->isUnstable())
                 return QVariant();
         }
         if (role == ComponentModelHelper::ExpandedByDefault) {
             return component->isExpandedByDefault();
         }
+        if (component->isUnstable() && role == Qt::ForegroundRole) {
+            return QVariant(QColor(Qt::lightGray));
+        }
         return component->data(role);
     }
     return QVariant();