layers: add layer and layer_map to_json() helper

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/layers.hpp b/src/layers.hpp
index e2d2bf5..a775f7a 100644
--- a/src/layers.hpp
+++ b/src/layers.hpp
@@ -15,6 +15,8 @@
 namespace wm {
 
 struct layer {
+   using json = nlohmann::json;
+
    // Min and max surface ID mapped to this layer
    int id_min = -1;
    int id_max = -1;
@@ -36,11 +38,15 @@ struct layer {
    bool operator<(struct layer const &rhs) const {
       return this->id_max < rhs.id_max;
    }
+
+   json to_json() const;
 };
 
 // Actually, we shouldn't need a struct here ... but let's just keep it at that
 // for now, to contain its mapping type and the _single_ useful method.
 struct layer_map {
+   using json = nlohmann::json;
+
    typedef std::set<struct layer> storage_type;
    typedef std::vector<unsigned int> layers_type;
 
@@ -52,6 +58,8 @@ struct layer_map {
    layers_type::size_type get_layers_count() const {
       return this->layers.size();
    }
+
+   json to_json() const;
 };
 
 struct result<struct layer_map> to_layer_map(nlohmann::json const &j);