Index: trunk/src/include/editormanager.h
===================================================================
--- trunk/src/include/editormanager.h    (revision 8127)
+++ trunk/src/include/editormanager.h    (working copy)
@@ -122,9 +122,11 @@
         // If file is modified, queries to save (yes/no/cancel).
         // Returns false on "cancel".
         bool QueryClose(EditorBase* editor);
+        bool QueryCloseProject(cbProject* project);
         bool QueryCloseAll();
-        bool CloseAll(bool dontsave=false);
-        bool CloseAllExcept(EditorBase* editor, bool dontsave=false);
+        bool CloseProject(cbProject* project, bool dontsave = false);
+        bool CloseAll(bool dontsave = false);
+        bool CloseAllExcept(EditorBase* editor, bool dontsave = false);
         bool Save(const wxString& filename);
         bool Save(int index);
         bool SaveActive();
Index: trunk/src/include/projectmanager.h
===================================================================
--- trunk/src/include/projectmanager.h    (revision 8127)
+++ trunk/src/include/projectmanager.h    (working copy)
@@ -522,6 +522,7 @@
         void OnRenameFile(wxCommandEvent& event);
         void OnSaveProject(wxCommandEvent& event);
         void OnCloseProject(wxCommandEvent& event);
+        void OnCloseProjectFiles(wxCommandEvent& event);
         void OnSaveFile(wxCommandEvent& event);
         void OnCloseFile(wxCommandEvent& event);
         void OnOpenFile(wxCommandEvent& event);
Index: trunk/src/sdk/editormanager.cpp
===================================================================
--- trunk/src/sdk/editormanager.cpp    (revision 8127)
+++ trunk/src/sdk/editormanager.cpp    (working copy)
@@ -686,11 +686,48 @@
     return true;
 }
 
+bool EditorManager::CloseProject(cbProject* project, bool dontsave)
+{
+    if(!dontsave)
+        if(!QueryCloseProject(project))
+            return false;
+
+    m_pNotebook->Freeze();
+    for (int i = m_pNotebook->GetPageCount() - 1; i >= 0; --i)
+    {
+        EditorBase* eb = InternalGetEditorBase(i);
+        if(eb && eb->IsBuiltinEditor())
+        {
+            ProjectFile* prjf = ((cbEditor*)eb)->GetProjectFile();
+            if(prjf && (prjf->GetParentProject() == project))
+                Close(eb, true);
+        }
+    }
+    m_pNotebook->Thaw();
+    return true;
+}
+
 bool EditorManager::CloseAll(bool dontsave)
 {
     return CloseAllExcept(GetEditor(_("Start here")), dontsave);
 }
 
+bool EditorManager::QueryCloseProject(cbProject* project)
+{
+    for (int i = m_pNotebook->GetPageCount() - 1; i >= 0; --i)
+    {
+        EditorBase* eb = InternalGetEditorBase(i);
+        if(eb && eb->IsBuiltinEditor())
+        {
+            ProjectFile* prjf = ((cbEditor*)eb)->GetProjectFile();
+            if(prjf && (prjf->GetParentProject() == project))
+                if (!QueryClose(eb))
+                    return false; // aborted
+        }
+    }
+    return true;
+}
+
 bool EditorManager::QueryCloseAll()
 {
     for (int i = m_pNotebook->GetPageCount() - 1; i >= 0; --i)
Index: trunk/src/sdk/projectmanager.cpp
===================================================================
--- trunk/src/sdk/projectmanager.cpp    (revision 8127)
+++ trunk/src/sdk/projectmanager.cpp    (working copy)
@@ -79,6 +79,7 @@
 int idMenuSaveProject = wxNewId();
 int idMenuSaveFile = wxNewId();
 int idMenuCloseProject = wxNewId();
+int idMenuCloseProjectFiles = wxNewId();
 int idMenuCloseFile = wxNewId();
 int idMenuAddFilePopup = wxNewId();
 int idMenuAddFilesRecursivelyPopup = wxNewId();
@@ -338,6 +339,7 @@
     EVT_MENU(idMenuSaveProject, ProjectManager::OnSaveProject)
     EVT_MENU(idMenuSaveFile, ProjectManager::OnSaveFile)
     EVT_MENU(idMenuCloseProject, ProjectManager::OnCloseProject)
+    EVT_MENU(idMenuCloseProjectFiles, ProjectManager::OnCloseProjectFiles)
     EVT_MENU(idMenuCloseFile, ProjectManager::OnCloseFile)
     EVT_MENU(idMenuOpenFile, ProjectManager::OnOpenFile)
     EVT_MENU(idMenuProjectNotes, ProjectManager::OnNotes)
@@ -717,6 +719,7 @@
             menu.Enable(idMenuSaveProject, PopUpMenuOption);
             menu.Append(idMenuCloseProject,             _("Close project"));
             menu.Enable(idMenuCloseProject, PopUpMenuOption);
+            menu.Append(idMenuCloseProjectFiles,        _("Close all project files"));
             menu.AppendSeparator();
             menu.Append(idMenuAddFilePopup,             _("Add files..."));
             menu.Enable(idMenuAddFilePopup, PopUpMenuOption);
@@ -2537,6 +2540,22 @@
     Manager::Get()->GetAppWindow()->Refresh();
 }
 
+void ProjectManager::OnCloseProjectFiles(wxCommandEvent& WXUNUSED(event))
+{
+    wxTreeItemId sel = GetTreeSelection();
+    if (!sel.IsOk())
+        return;
+
+    FileTreeData* ftd = (FileTreeData*)m_pTree->GetItemData(sel);
+    cbProject *proj = 0;
+    if (ftd)
+        proj = ftd->GetProject();
+
+    if(proj)
+        Manager::Get()->GetEditorManager()->CloseProject(proj);
+    Manager::
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