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;
39 using json = nlohmann::json;
41 // A more or less descriptive name?
42 std::string name = "";
43 // The actual layer ID
45 // The rectangular region surfaces are allowed to draw on
46 // this layer, note however, width and hieght of the rect
47 // can be negative, in which case they specify that
48 // the actual value is computed using MAX + 1 - w
49 // That is; allow us to specify dimensions dependent on
50 // e.g. screen dimension, w/o knowing the actual screen size.
52 // Specify a role prefix for surfaces that should be
55 // XXX perhaps a zorder is needed here?
56 std::vector<struct split_layout> layouts;
57 // XXX need to change the way we store these things...
58 mutable struct LayoutState state;
60 explicit layer(nlohmann::json const &j);
66 using json = nlohmann::json;
68 using storage_type = std::map<int, struct layer>;
69 using layers_type = std::vector<uint32_t>;
70 using role_to_layer_map = std::vector<std::pair<std::string, int>>;
71 using addsurf_layer_map = std::map<int, int>;
73 // XXX: we also will need a layer_id to layer map, perhaps
74 // make this the primary map, and the surface_id->layer a
77 storage_type mapping; // map surface_id to layer
78 layers_type layers; // the actual layer IDs we have
80 std::string main_surface_name;
81 role_to_layer_map roles;
82 addsurf_layer_map surfaces; // additional surfaces on layers
84 optional<int> get_layer_id(int surface_id);
85 optional<int> get_layer_id(std::string const &role);
86 optional<struct LayoutState*> get_layout_state(int surface_id) {
87 int layer_id = *this->get_layer_id(surface_id);
88 auto i = this->mapping.find(layer_id);
89 return i == this->mapping.end()
91 : optional<struct LayoutState *>(&i->second.state);
93 optional<struct layer> get_layer(int layer_id) {
94 auto i = this->mapping.find(layer_id);
95 return i == this->mapping.end() ? nullopt
96 : optional<struct layer>(i->second);
99 layers_type::size_type get_layers_count() const {
100 return this->layers.size();
103 void add_surface(int surface_id, int layer_id) {
104 this->surfaces[surface_id] = layer_id;
107 void remove_surface(int surface_id) {
108 this->surfaces.erase(surface_id);
111 json to_json() const;
114 struct result<struct layer_map> to_layer_map(nlohmann::json const &j);
118 #endif // TMCAGLWM_LAYERS_H