added multiple selections support to wxDirCtrl (closes #10830)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60909 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/dirctrlg.cpp

@@ -472,6 +472,7 @@ wxBEGIN_FLAGS( wxGenericDirCtrlStyle )
     wxFLAGS_MEMBER(wxDIRCTRL_DIR_ONLY)
     wxFLAGS_MEMBER(wxDIRCTRL_3D_INTERNAL)
     wxFLAGS_MEMBER(wxDIRCTRL_SELECT_FIRST)
+    wxFLAGS_MEMBER(wxDIRCTRL_MULTIPLE)
 
 wxEND_FLAGS( wxGenericDirCtrlStyle )
 
@@ -560,6 +561,9 @@ bool wxGenericDirCtrl::Create(wxWindow *parent,
     if (style & wxDIRCTRL_EDIT_LABELS)
         treeStyle |= wxTR_EDIT_LABELS;
 
+    if (style & wxDIRCTRL_MULTIPLE)
+        treeStyle |= wxTR_MULTIPLE;
+
     if ((style & wxDIRCTRL_3D_INTERNAL) == 0)
         treeStyle |= wxNO_BORDER;
 
@@ -629,9 +633,22 @@ void wxGenericDirCtrl::ShowHidden( bool show )
 
     m_showHidden = show;
 
-    wxString path = GetPath();
-    ReCreateTree();
-    SetPath(path);
+    if ( HasFlag(wxDIRCTRL_MULTIPLE) )
+    {
+        wxArrayString paths;
+        GetPaths(paths);
+        ReCreateTree();
+        for ( unsigned n = 0; n < paths.size(); n++ )
+        {
+            ExpandPath(paths[n]);
+        }
+    }
+    else
+    {
+        wxString path = GetPath();
+        ReCreateTree();
+        SetPath(path);
+    }
 }
 
 const wxTreeItemId
@@ -1095,6 +1112,20 @@ wxString wxGenericDirCtrl::GetPath() const
         return wxEmptyString;
 }
 
+void wxGenericDirCtrl::GetPaths(wxArrayString& paths) const
+{
+    paths.clear();
+
+    wxArrayTreeItemIds items;
+    m_treeCtrl->GetSelections(items);
+    for ( unsigned n = 0; n < items.size(); n++ )
+    {
+        wxTreeItemId id = items[n];
+        wxDirItemData* data = (wxDirItemData*) m_treeCtrl->GetItemData(id);
+        paths.Add(data->m_path);
+    }
+}
+
 wxString wxGenericDirCtrl::GetFilePath() const
 {
     wxTreeItemId id = m_treeCtrl->GetSelection();
@@ -1110,6 +1141,21 @@ wxString wxGenericDirCtrl::GetFilePath() const
         return wxEmptyString;
 }
 
+void wxGenericDirCtrl::GetFilePaths(wxArrayString& paths) const
+{
+    paths.clear();
+
+    wxArrayTreeItemIds items;
+    m_treeCtrl->GetSelections(items);
+    for ( unsigned n = 0; n < items.size(); n++ )
+    {
+        wxTreeItemId id = items[n];
+        wxDirItemData* data = (wxDirItemData*) m_treeCtrl->GetItemData(id);
+        if ( !data->m_isDir )
+            paths.Add(data->m_path);
+    }
+}
+
 void wxGenericDirCtrl::SetPath(const wxString& path)
 {
     m_defaultPath = path;
@@ -1117,6 +1163,48 @@ void wxGenericDirCtrl::SetPath(const wxString& path)
         ExpandPath(path);
 }
 
+void wxGenericDirCtrl::SelectPath(const wxString& path, bool select)
+{
+    bool done = false;
+    wxTreeItemId id = FindChild(m_rootId, path, done);
+    wxTreeItemId lastId = id; // The last non-zero id
+    while ( id.IsOk() && !done )
+    {
+        id = FindChild(id, path, done);
+        if ( id.IsOk() )
+            lastId = id;
+    }
+    if ( !lastId.IsOk() )
+        return;
+
+    if ( done )
+    {
+        if(select && m_treeCtrl->IsSelected(id))
+            return;
+        else
+        {
+            m_treeCtrl->SelectItem(id, select);
+        }
+    }
+}
+
+void wxGenericDirCtrl::SelectPaths(const wxArrayString& paths)
+{
+    if ( HasFlag(wxDIRCTRL_MULTIPLE) )
+    {
+        UnselectAll();
+        for ( unsigned n = 0; n < paths.size(); n++ )
+        {
+            SelectPath(paths[n]);
+        }
+    }
+}
+
+void wxGenericDirCtrl::UnselectAll()
+{
+    m_treeCtrl->UnselectAll();
+}
+
 // Not used
 #if 0
 void wxGenericDirCtrl::FindChildFiles(wxTreeItemId id, int dirFlags, wxArrayString& filenames)