2 * Copyright (C) 2017 Mentor Graphics Development (Deutschland) GmbH
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef TMCAGLWM_LAYERS_H
18 #define TMCAGLWM_LAYERS_H
28 #include "wayland.hpp"
34 std::string main_match;
35 std::string sub_match;
36 int prio; // no entirely sure we will use this
40 using json = nlohmann::json;
42 // Min and max surface ID mapped to this layer
45 // A more or less descriptive name?
46 std::string name = "";
47 // The actual layer ID
49 // The rectangular region surfaces are allowed to draw on
50 // this layer, note however, width and hieght of the rect
51 // can be negative, in which case they specify that
52 // the actual value is computed using MAX + 1 - w
53 // That is; allow us to specify dimensions dependent on
54 // e.g. screen dimension, w/o knowing the actual screen size.
56 // Specify a role prefix for surfaces that should be
59 // XXX perhaps a zorder is needed here?
60 std::vector<struct split_layout> layouts;
61 // XXX need to change the way we store these things...
62 mutable struct LayoutState state;
64 explicit layer(nlohmann::json const &j);
66 bool operator<(struct layer const &rhs) const {
67 return this->id_max < rhs.id_max;
74 using json = nlohmann::json;
76 using storage_type = std::set<struct layer>;
77 using layers_type = std::vector<uint32_t>;
78 using role_to_layer_map = std::vector<std::pair<std::string, int>>;
79 using addsurf_layer_map = std::map<int, int>;
81 // XXX: we also will need a layer_id to layer map, perhaps
82 // make this the primary map, and the surface_id->layer a
85 storage_type mapping; // map surface_id to layer
86 layers_type layers; // the actual layer IDs we have
88 std::string main_surface_name;
89 role_to_layer_map roles;
90 addsurf_layer_map surfaces; // additional surfaces on layers
92 optional<int> get_layer_id(int surface_id);
93 optional<int> get_layer_id(std::string const &role);
94 optional<struct LayoutState*> get_layout_state(int surface_id) {
95 int layer_id = *this->get_layer_id(surface_id);
96 auto i = std::find_if(
97 std::begin(this->mapping), std::end(this->mapping),
98 [layer_id](struct layer const &l) { return layer_id == l.layer_id; });
99 return i == this->mapping.end() ? nullopt : optional<struct LayoutState *>(&i->state);
101 optional<struct layer> get_layer(int layer_id) {
102 auto i = std::find_if(
103 std::cbegin(this->mapping), std::cend(this->mapping),
104 [layer_id](struct layer const &l) { return layer_id == l.layer_id; });
105 return i == this->mapping.end() ? nullopt : optional<struct layer>(*i);
108 optional<genivi::rect> get_layer_rect(int surface_id);
109 layers_type::size_type get_layers_count() const {
110 return this->layers.size();
113 void add_surface(int surface_id, int layer_id) {
114 this->surfaces[surface_id] = layer_id;
117 void remove_surface(int surface_id) {
118 this->surfaces.erase(surface_id);
121 json to_json() const;
124 struct result<struct layer_map> to_layer_map(nlohmann::json const &j);
128 #endif // TMCAGLWM_LAYERS_H