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