Allow for disabled nodes in Projects view

Change-Id: I8b9a2666c8efdc5981adfe6a3a032884a6e50d2a
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

6 files changed, 60 insertions, 2 deletions

diff --git a/src/plugins/projectexplorer/project.h b/src/plugins/projectexplorer/project.h
index cef039e816..78610a0d13 100644
--- a/src/plugins/projectexplorer/project.h
+++ b/src/plugins/projectexplorer/project.h
@@ -63,7 +63,8 @@ public:
     // Roles to be implemented by all models that are exported via model()
     enum ModelRoles {
         // Absolute file path
-        FilePathRole = QFileSystemModel::FilePathRole
+        FilePathRole = QFileSystemModel::FilePathRole,
+        EnabledRole
     };
 
     Project();
diff --git a/src/plugins/projectexplorer/projectmodels.cpp b/src/plugins/projectexplorer/projectmodels.cpp
index 9e08a27505..07fd6ad6af 100644
--- a/src/plugins/projectexplorer/projectmodels.cpp
+++ b/src/plugins/projectexplorer/projectmodels.cpp
@@ -197,6 +197,9 @@ FlatModel::FlatModel(SessionNode *rootNode, QObject *parent)
             this, SLOT(filesAboutToBeRemoved(FolderNode*,QList<FileNode*>)));
     connect(watcher, SIGNAL(filesRemoved()),
             this, SLOT(filesRemoved()));
+
+    connect(watcher, SIGNAL(nodeUpdated(ProjectExplorer::Node*)),
+            this, SLOT(nodeUpdated(ProjectExplorer::Node*)));
 }
 
 QModelIndex FlatModel::index(int row, int column, const QModelIndex &parent) const
@@ -296,6 +299,10 @@ QVariant FlatModel::data(const QModelIndex &index, int role) const
             result = node->path();
             break;
         }
+        case ProjectExplorer::Project::EnabledRole: {
+            result = node->isEnabled();
+            break;
+        }
         }
     }
 
@@ -847,6 +854,12 @@ void FlatModel::filesRemoved()
     // Do nothing
 }
 
+void FlatModel::nodeUpdated(Node *node)
+{
+    QModelIndex idx = indexForNode(node);
+    emit dataChanged(idx, idx);
+}
+
 namespace ProjectExplorer {
 namespace Internal {
 
diff --git a/src/plugins/projectexplorer/projectmodels.h b/src/plugins/projectexplorer/projectmodels.h
index 0032a2cb2c..b4197439d7 100644
--- a/src/plugins/projectexplorer/projectmodels.h
+++ b/src/plugins/projectexplorer/projectmodels.h
@@ -93,6 +93,8 @@ private slots:
     void filesAboutToBeRemoved(FolderNode *folder, const QList<FileNode*> &staleFiles);
     void filesRemoved();
 
+    void nodeUpdated(ProjectExplorer::Node *node);
+
 private:
     void added(FolderNode* folderNode, const QList<Node*> &newNodeList);
     void removed(FolderNode* parentNode, const QList<Node*> &newNodeList);
diff --git a/src/plugins/projectexplorer/projectnodes.cpp b/src/plugins/projectexplorer/projectnodes.cpp
index 45a18c0094..696ca553e8 100644
--- a/src/plugins/projectexplorer/projectnodes.cpp
+++ b/src/plugins/projectexplorer/projectnodes.cpp
@@ -117,6 +117,11 @@ QString Node::tooltip() const
     return QDir::toNativeSeparators(path());
 }
 
+bool Node::isEnabled() const
+{
+    return parentFolderNode()->isEnabled();
+}
+
 void Node::setNodeType(NodeType type)
 {
     m_nodeType = type;
@@ -127,6 +132,12 @@ void Node::setProjectNode(ProjectNode *project)
     m_projectNode = project;
 }
 
+void Node::emitNodeUpdated()
+{
+    foreach (NodesWatcher *watcher, projectNode()->watchers())
+        emit watcher->nodeUpdated(this);
+}
+
 void Node::setParentFolderNode(FolderNode *parentFolder)
 {
     m_folderNode = parentFolder;
diff --git a/src/plugins/projectexplorer/projectnodes.h b/src/plugins/projectexplorer/projectnodes.h
index 5cbdee4a9a..0b2f2e0945 100644
--- a/src/plugins/projectexplorer/projectnodes.h
+++ b/src/plugins/projectexplorer/projectnodes.h
@@ -88,6 +88,7 @@ public:
     virtual QString displayName() const;
     virtual QString vcsTopic() const;
     virtual QString tooltip() const;
+    virtual bool isEnabled() const;
 
 protected:
     Node(NodeType nodeType, const QString &path);
@@ -96,6 +97,8 @@ protected:
     void setProjectNode(ProjectNode *project);
     void setParentFolderNode(FolderNode *parentFolder);
 
+    void emitNodeUpdated();
+
 private:
     NodeType m_nodeType;
     ProjectNode *m_projectNode;
@@ -228,6 +231,8 @@ public:
 
     void accept(NodesVisitor *visitor);
 
+    bool isEnabled() const { return true; }
+
 protected:
     // this is just the in-memory representation, a subclass
     // will add the persistent stuff
@@ -270,6 +275,8 @@ public:
 
     void accept(NodesVisitor *visitor);
 
+    bool isEnabled() const { return true; }
+
 protected:
     void addProjectNodes(const QList<ProjectNode*> &projectNodes);
     void removeProjectNodes(const QList<ProjectNode*> &projectNodes);
@@ -289,6 +296,11 @@ public:
     explicit NodesWatcher(QObject *parent = 0);
 
 signals:
+    // everything
+
+    // Emited whenever the model needs to send a update signal.
+    void nodeUpdated(ProjectExplorer::Node *node);
+
     // projects
     void aboutToChangeHasBuildTargets(ProjectExplorer::ProjectNode*);
     void hasBuildTargetsChanged(ProjectExplorer::ProjectNode *node);
@@ -316,6 +328,7 @@ private:
     // let project & session emit signals
     friend class ProjectNode;
     friend class SessionNode;
+    friend class Node;
 };
 
 
diff --git a/src/plugins/projectexplorer/projecttreewidget.cpp b/src/plugins/projectexplorer/projecttreewidget.cpp
index 313eab457a..8e72e423cb 100644
--- a/src/plugins/projectexplorer/projecttreewidget.cpp
+++ b/src/plugins/projectexplorer/projecttreewidget.cpp
@@ -49,6 +49,7 @@
 #include <QSettings>
 
 #include <QHeaderView>
+#include <QStyledItemDelegate>
 #include <QTreeView>
 #include <QVBoxLayout>
 #include <QToolButton>
@@ -62,7 +63,23 @@ using namespace ProjectExplorer;
 using namespace ProjectExplorer::Internal;
 
 namespace {
-    bool debug = false;
+
+class ProjectTreeItemDelegate : public QStyledItemDelegate
+{
+public:
+    ProjectTreeItemDelegate(QObject *parent) : QStyledItemDelegate(parent)
+    { }
+
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
+    {
+        QStyleOptionViewItem opt = option;
+        if (!index.data(ProjectExplorer::Project::EnabledRole).toBool())
+            opt.state &= ~QStyle::State_Enabled;
+        QStyledItemDelegate::paint(painter, opt, index);
+    }
+};
+
+bool debug = false;
 }
 
 class ProjectTreeView : public Utils::NavigationTreeView
@@ -115,6 +132,7 @@ ProjectTreeWidget::ProjectTreeWidget(QWidget *parent)
 
     m_view = new ProjectTreeView;
     m_view->setModel(m_model);
+    m_view->setItemDelegate(new ProjectTreeItemDelegate(this));
     setFocusProxy(m_view);
     initView();