src/layers.cpp

   1 /*
   2  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
   3  * Copyright (c) 2018 Konsulko Group
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <regex>
  19
  20 #include "layers.hpp"
  21 #include "json_helper.hpp"
  22 #include "util.hpp"
  23 #include "hmi-debug.h"
  24
  25 namespace wm
  26 {
  27
  28 using json = nlohmann::json;
  29
  30 layer::layer(nlohmann::json const &j)
  31 {
  32     this->role = j["role"];
  33     this->name = j["name"];
  34     this->layer_id = j["layer_id"];
  35
  36     HMI_DEBUG("wm", "layer_id:%d name:%s", this->layer_id, this->name.c_str());
  37 }
  38
  39 struct result<struct layer_map> to_layer_map(nlohmann::json const &j)
  40 {
  41     try
  42     {
  43         layer_map stl{};
  44         auto m = j["mappings"];
  45
  46         std::transform(std::cbegin(m), std::cend(m),
  47                        std::inserter(stl.mapping, stl.mapping.end()),
  48                        [](nlohmann::json const &j) {
  49                            return std::pair<int, struct layer>(
  50                                j.value("layer_id", -1), layer(j));
  51                        });
  52
  53         // TODO: add sanity checks here?
  54         // * check for double IDs
  55         // * check for double names/roles
  56
  57         stl.layers.reserve(m.size());
  58         std::transform(std::cbegin(stl.mapping), std::cend(stl.mapping),
  59                        std::back_inserter(stl.layers),
  60                        [&stl](std::pair<int, struct layer> const &k) {
  61                            stl.roles.emplace_back(
  62                                std::make_pair(k.second.role, k.second.layer_id));
  63                            return unsigned(k.second.layer_id);
  64                        });
  65
  66         std::sort(stl.layers.begin(), stl.layers.end());
  67
  68         for (auto i : stl.mapping)
  69         {
  70             if (i.second.name.empty())
  71             {
  72                 return Err<struct layer_map>("Found mapping w/o name");
  73             }
  74             if (i.second.layer_id == -1)
  75             {
  76                 return Err<struct layer_map>("Found invalid/unset IDs in mapping");
  77             }
  78         }
  79
  80         auto msi = j.find("main_surface");
  81         if (msi != j.end())
  82         {
  83             stl.main_surface_name = msi->value("surface_role", "");
  84             stl.main_surface = -1;
  85         }
  86
  87         return Ok(stl);
  88     }
  89     catch (std::exception &e)
  90     {
  91         return Err<struct layer_map>(e.what());
  92     }
  93 }
  94
  95 optional<int>
  96 layer_map::get_layer_id(int surface_id)
  97 {
  98     auto i = this->surfaces.find(surface_id);
  99     if (i != this->surfaces.end())
 100     {
 101         return optional<int>(i->second);
 102     }
 103     return nullopt;
 104 }
 105
 106 optional<int> layer_map::get_layer_id(std::string const &role)
 107 {
 108     for (auto const &r : this->roles)
 109     {
 110         auto re = std::regex(r.first);
 111         if (std::regex_match(role, re))
 112         {
 113             HMI_DEBUG("wm", "role %s matches layer %d", role.c_str(), r.second);
 114             return optional<int>(r.second);
 115         }
 116     }
 117     HMI_DEBUG("wm", "role %s does NOT match any layer", role.c_str());
 118     return nullopt;
 119 }
 120
 121 json layer::to_json() const
 122 {
 123     auto is_full = this->rect == compositor::full_rect;
 124
 125     json r{};
 126     if (is_full)
 127     {
 128         r = {{"type", "full"}};
 129     }
 130     else
 131     {
 132         r = {{"type", "rect"},
 133              {"rect",
 134               {{"x", this->rect.x},
 135                {"y", this->rect.y},
 136                {"width", this->rect.w},
 137                {"height", this->rect.h}}}};
 138     }
 139
 140     return {
 141         {"name", this->name},
 142         {"role", this->role},
 143         {"layer_id", this->layer_id},
 144         {"area", r},
 145     };
 146 }
 147
 148 json layer_map::to_json() const
 149 {
 150     json j{};
 151     for (auto const &i : this->mapping)
 152     {
 153         j.push_back(i.second.to_json());
 154     }
 155     return j;
 156 }
 157
 158 void layer_map::setupArea(double scaling)
 159 {
 160     compositor::rect rct;
 161
 162     rct = this->area2size["normal.full"];
 163     this->area2size["normalfull"] = rct;
 164     this->area2size["normal"] = rct;
 165
 166     for (auto &i : this->area2size)
 167     {
 168         i.second.x = static_cast<int>(scaling * i.second.x + 0.5);
 169         i.second.y = static_cast<int>(scaling * i.second.y + 0.5);
 170         i.second.w = static_cast<int>(scaling * i.second.w + 0.5);
 171         i.second.h = static_cast<int>(scaling * i.second.h + 0.5);
 172
 173         HMI_DEBUG("wm:lm", "area:%s size(after) : x:%d y:%d w:%d h:%d",
 174             i.first.c_str(), i.second.x, i.second.y, i.second.w, i.second.h);
 175     }
 176 }
 177
 178 compositor::rect layer_map::getAreaSize(const std::string &area)
 179 {
 180     return area2size[area];
 181 }
 182
 183 int layer_map::loadAreaDb()
 184 {
 185     HMI_DEBUG("wm:lm", "Call");
 186
 187     std::string file_name(get_file_path("areas.db"));
 188
 189     // Load area.db
 190     json_object *json_obj;
 191     int ret = jh::inputJsonFilie(file_name.c_str(), &json_obj);
 192     if (0 > ret)
 193     {
 194         HMI_DEBUG("wm:lm", "Could not open area.db, so use default area information");
 195         json_obj = json_tokener_parse(kDefaultAreaDb);
 196     }
 197     HMI_DEBUG("wm:lm", "json_obj dump:%s", json_object_get_string(json_obj));
 198
 199     // Perse areas
 200     HMI_DEBUG("wm:lm", "Perse areas");
 201     json_object *json_cfg;
 202     if (!json_object_object_get_ex(json_obj, "areas", &json_cfg))
 203     {
 204         HMI_ERROR("wm:lm", "Parse Error!!");
 205         return -1;
 206     }
 207
 208     int len = json_object_array_length(json_cfg);
 209     HMI_DEBUG("wm:lm", "json_cfg len:%d", len);
 210     HMI_DEBUG("wm:lm", "json_cfg dump:%s", json_object_get_string(json_cfg));
 211
 212     const char *area;
 213     for (int i = 0; i < len; i++)
 214     {
 215         json_object *json_tmp = json_object_array_get_idx(json_cfg, i);
 216         HMI_DEBUG("wm:lm", "> json_tmp dump:%s", json_object_get_string(json_tmp));
 217
 218         area = jh::getStringFromJson(json_tmp, "name");
 219         if (nullptr == area)
 220         {
 221             HMI_ERROR("wm:lm", "Parse Error!!");
 222             return -1;
 223         }
 224         HMI_DEBUG("wm:lm", "> area:%s", area);
 225
 226         json_object *json_rect;
 227         if (!json_object_object_get_ex(json_tmp, "rect", &json_rect))
 228         {
 229             HMI_ERROR("wm:lm", "Parse Error!!");
 230             return -1;
 231         }
 232         HMI_DEBUG("wm:lm", "> json_rect dump:%s", json_object_get_string(json_rect));
 233
 234         compositor::rect area_size;
 235         area_size.x = jh::getIntFromJson(json_rect, "x");
 236         area_size.y = jh::getIntFromJson(json_rect, "y");
 237         area_size.w = jh::getIntFromJson(json_rect, "w");
 238         area_size.h = jh::getIntFromJson(json_rect, "h");
 239
 240         this->area2size[area] = area_size;
 241     }
 242
 243     // Check
 244     for (auto itr = this->area2size.begin();
 245          itr != this->area2size.end(); ++itr)
 246     {
 247         HMI_DEBUG("wm:lm", "area:%s x:%d y:%d w:%d h:%d",
 248                   itr->first.c_str(), itr->second.x, itr->second.y,
 249                   itr->second.w, itr->second.h);
 250     }
 251
 252     // Release json_object
 253     json_object_put(json_obj);
 254
 255     return 0;
 256 }
 257
 258 const char* layer_map::kDefaultAreaDb = "{ \
 259     \"areas\": [ \
 260         { \
 261             \"name\": \"fullscreen\", \
 262             \"rect\": { \
 263                 \"x\": 0, \
 264                 \"y\": 0, \
 265                 \"w\": 1080, \
 266                 \"h\": 1920 \
 267             } \
 268         }, \
 269         { \
 270             \"name\": \"normal.full\", \
 271             \"rect\": { \
 272                 \"x\": 0, \
 273                 \"y\": 218, \
 274                 \"w\": 1080, \
 275                 \"h\": 1488 \
 276             } \
 277         }, \
 278         { \
 279             \"name\": \"split.main\", \
 280             \"rect\": { \
 281                 \"x\": 0, \
 282                 \"y\": 218, \
 283                 \"w\": 1080, \
 284                 \"h\": 744 \
 285             } \
 286         }, \
 287         { \
 288             \"name\": \"split.sub\", \
 289             \"rect\": { \
 290                 \"x\": 0, \
 291                 \"y\": 962, \
 292                 \"w\": 1080, \
 293                 \"h\": 744 \
 294             } \
 295         }, \
 296         { \
 297             \"name\": \"software_keyboard\", \
 298             \"rect\": { \
 299                 \"x\": 0, \
 300                 \"y\": 962, \
 301                 \"w\": 1080, \
 302                 \"h\": 744 \
 303             } \
 304         }, \
 305         { \
 306             \"name\": \"restriction.normal\", \
 307             \"rect\": { \
 308                 \"x\": 0, \
 309                 \"y\": 218, \
 310                 \"w\": 1080, \
 311                 \"h\": 1488 \
 312             } \
 313         }, \
 314         { \
 315             \"name\": \"restriction.split.main\", \
 316             \"rect\": { \
 317                 \"x\": 0, \
 318                 \"y\": 218, \
 319                 \"w\": 1080, \
 320                 \"h\": 744 \
 321             } \
 322         }, \
 323         { \
 324             \"name\": \"restriction.split.sub\", \
 325             \"rect\": { \
 326                 \"x\": 0, \
 327                 \"y\": 962, \
 328                 \"w\": 1080, \
 329                 \"h\": 744 \
 330             } \
 331         }, \
 332         { \
 333             \"name\": \"on_screen\", \
 334             \"rect\": { \
 335                 \"x\": 0, \
 336                 \"y\": 218, \
 337                 \"w\": 1080, \
 338                 \"h\": 1488 \
 339             } \
 340         } \
 341     ] \
 342 }";
 343
 344 } // namespace wm