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//
// Created by m on 7/27/17.
//
#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;
// 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;
};
// 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;
storage_type mapping;
layers_type layers;
optional<int> get_layer_id(int surface_id);
optional<genivi::rect> get_layer_rect(int surface_id);
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);
} // namespace wm
#endif // TMCAGLWM_LAYERS_H
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