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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 <set>
#include <string>
#include "result.hpp"
#include "wayland.hpp"
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;
// 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?
explicit layer(nlohmann::json const &j);
bool operator<(struct layer const &rhs) const {
return this->id_max < rhs.id_max;
}
json to_json() const;
};
struct layer_map {
using json = nlohmann::json;
typedef std::set<struct layer> storage_type;
typedef std::vector<unsigned int> layers_type;
typedef std::vector<std::pair<std::string, int>> role_to_layer_map;
typedef std::map<unsigned, unsigned> addsurf_layer_map;
// 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 layer> get_layer(int layer_id) {
auto i = std::find_if(
std::cbegin(this->mapping), std::cend(this->mapping),
[layer_id](struct layer const &l) { return layer_id == l.layer_id; });
return i == this->mapping.end() ? nullopt : optional<struct layer>(*i);
}
optional<genivi::rect> get_layer_rect(int surface_id);
layers_type::size_type get_layers_count() const {
return this->layers.size();
}
void add_surface(unsigned surface_id, unsigned layer_id) {
this->surfaces[surface_id] = layer_id;
}
json to_json() const;
};
struct result<struct layer_map> to_layer_map(nlohmann::json const &j);
} // namespace wm
#endif // TMCAGLWM_LAYERS_H
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