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+/*
+ * Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef TMCAGLWM_LAYERS_H
+#define TMCAGLWM_LAYERS_H
+
+#include <json.hpp>
+
+#include <regex>
+#include <set>
+#include <string>
+
+#include "layout.hpp"
+#include "result.hpp"
+#include "wayland.hpp"
+
+namespace wm {
+
+struct split_layout {
+ std::string name;
+ std::string main_match;
+ std::string sub_match;
+};
+
+struct layer {
+ using json = nlohmann::json;
+
+ // A more or less descriptive name?
+ std::string name = "";
+ // The actual layer ID
+ int layer_id = -1;
+ // The rectangular region surfaces are allowed to draw on
+ // this layer, note however, width and hieght of the rect
+ // can be negative, in which case they specify that
+ // the actual value is computed using MAX + 1 - w
+ // That is; allow us to specify dimensions dependent on
+ // e.g. screen dimension, w/o knowing the actual screen size.
+ genivi::rect rect;
+ // Specify a role prefix for surfaces that should be
+ // put on this layer.
+ std::string role;
+ // XXX perhaps a zorder is needed here?
+ std::vector<struct split_layout> layouts;
+ // XXX need to change the way we store these things...
+ mutable struct LayoutState state;
+
+ explicit layer(nlohmann::json const &j);
+
+ json to_json() const;
+};
+
+struct layer_map {
+ using json = nlohmann::json;
+
+ using storage_type = std::map<int, struct layer>;
+ using layers_type = std::vector<uint32_t>;
+ using role_to_layer_map = std::vector<std::pair<std::string, int>>;
+ using addsurf_layer_map = std::map<int, int>;
+
+ // XXX: we also will need a layer_id to layer map, perhaps
+ // make this the primary map, and the surface_id->layer a
+ // secondary map.
+
+ storage_type mapping; // map surface_id to layer
+ layers_type layers; // the actual layer IDs we have
+ int main_surface;
+ std::string main_surface_name;
+ role_to_layer_map roles;
+ addsurf_layer_map surfaces; // additional surfaces on layers
+
+ optional<int> get_layer_id(int surface_id);
+ optional<int> get_layer_id(std::string const &role);
+ optional<struct LayoutState*> get_layout_state(int surface_id) {
+ int layer_id = *this->get_layer_id(surface_id);
+ auto i = this->mapping.find(layer_id);
+ return i == this->mapping.end()
+ ? nullopt
+ : optional<struct LayoutState *>(&i->second.state);
+ }
+ optional<struct layer> get_layer(int layer_id) {
+ auto i = this->mapping.find(layer_id);
+ return i == this->mapping.end() ? nullopt
+ : optional<struct layer>(i->second);
+ }
+
+ layers_type::size_type get_layers_count() const {
+ return this->layers.size();
+ }
+
+ void add_surface(int surface_id, int layer_id) {
+ this->surfaces[surface_id] = layer_id;
+ }
+
+ void remove_surface(int surface_id) {
+ this->surfaces.erase(surface_id);
+ }
+
+ json to_json() const;
+};
+
+struct result<struct layer_map> to_layer_map(nlohmann::json const &j);
+
+} // namespace wm
+
+#endif // TMCAGLWM_LAYERS_H