summaryrefslogtreecommitdiffstats
path: root/src/layers.hpp
blob: a775f7af2bce4f3c0a8ab9d2d09fb16fd3d0c834 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
//
// 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