[gnote] Add helpers for ordering widgets in map

[Aurimas Černius <aurimasc src gnome org>]

commit 176f86ed0f3aee4f86723acd0c88d364cfa83e79
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sat Dec 12 20:08:48 2015 +0200

    Add helpers for ordering widgets in map

 src/utils.cpp |   15 +++++++++++++++
 src/utils.hpp |    3 +++
 2 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/src/utils.cpp b/src/utils.cpp
index 1217f31..9a39255 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -283,6 +283,21 @@ namespace gnote {
     }
 
 
+    void add_item_to_ordered_map(std::map<int, Gtk::Widget*> & dest, int order, Gtk::Widget *item)
+    {
+      for(; dest.find(order) != dest.end(); ++order);
+      dest[order] = item;
+    }
+
+
+    void merge_ordered_maps(std::map<int, Gtk::Widget*> & dest, const std::map<int, Gtk::Widget*> & adds)
+    {
+      for(std::map<int, Gtk::Widget*>::const_iterator iter = adds.begin(); iter != adds.end(); ++iter) {
+        add_item_to_ordered_map(dest, iter->first, iter->second);
+      }
+    }
+
+
     void GlobalKeybinder::add_accelerator(const sigc::slot<void> & handler, guint key, 
                                           Gdk::ModifierType modifiers, Gtk::AccelFlags flags)
     {
diff --git a/src/utils.hpp b/src/utils.hpp
index c16036f..62f55e9 100644
--- a/src/utils.hpp
+++ b/src/utils.hpp
@@ -69,6 +69,9 @@ namespace gnote {
 
     Gtk::Widget * create_popover_button(const Glib::ustring & action, const Glib::ustring & label);
 
+    void add_item_to_ordered_map(std::map<int, Gtk::Widget*> & dest, int order, Gtk::Widget *item);
+    void merge_ordered_maps(std::map<int, Gtk::Widget*> & dest, const std::map<int, Gtk::Widget*> & adds);
+
     class GlobalKeybinder
     {
     public: