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#include "glfw_view.hpp"
#include "glfw_renderer_frontend.hpp"
#include "settings_json.hpp"
#include <mbgl/gfx/backend.hpp>
#include <mbgl/renderer/renderer.hpp>
#include <mbgl/storage/database_file_source.hpp>
#include <mbgl/storage/file_source_manager.hpp>
#include <mbgl/style/style.hpp>
#include <mbgl/util/default_styles.hpp>
#include <mbgl/util/logging.hpp>
#include <mbgl/util/platform.hpp>
#include <mbgl/util/string.hpp>
#include <args.hxx>
#include <csignal>
#include <fstream>
#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <array>
namespace {
GLFWView* view = nullptr;
} // namespace
void quit_handler(int) {
if (view) {
mbgl::Log::Info(mbgl::Event::Setup, "waiting for quit...");
view->setShouldClose();
} else {
exit(0);
}
}
int main(int argc, char *argv[]) {
args::ArgumentParser argumentParser("Mapbox GL GLFW example");
args::HelpFlag helpFlag(argumentParser, "help", "Display this help menu", {'h', "help"});
args::Flag fullscreenFlag(argumentParser, "fullscreen", "Toggle fullscreen", {'f', "fullscreen"});
args::Flag benchmarkFlag(argumentParser, "benchmark", "Toggle benchmark", {'b', "benchmark"});
args::Flag offlineFlag(argumentParser, "offline", "Toggle offline", {'o', "offline"});
args::ValueFlag<std::string> testDirValue(
argumentParser, "directory", "Root directory for test generation", {"testDir"});
args::ValueFlag<std::string> backendValue(argumentParser, "backend", "Rendering backend", {"backend"});
args::ValueFlag<std::string> styleValue(argumentParser, "URL", "Map stylesheet", {'s', "style"});
args::ValueFlag<std::string> cacheDBValue(argumentParser, "file", "Cache database file name", {'c', "cache"});
args::ValueFlag<double> lonValue(argumentParser, "degrees", "Longitude", {'x', "lon"});
args::ValueFlag<double> latValue(argumentParser, "degrees", "Latitude", {'y', "lat"});
args::ValueFlag<double> zoomValue(argumentParser, "number", "Zoom level", {'z', "zoom"});
args::ValueFlag<double> bearingValue(argumentParser, "degrees", "Bearing", {'b', "bearing"});
args::ValueFlag<double> pitchValue(argumentParser, "degrees", "Pitch", {'p', "pitch"});
try {
argumentParser.ParseCLI(argc, argv);
} catch (const args::Help&) {
std::cout << argumentParser;
exit(0);
} catch (const args::ParseError& e) {
std::cerr << e.what() << std::endl;
std::cerr << argumentParser;
exit(1);
} catch (const args::ValidationError& e) {
std::cerr << e.what() << std::endl;
std::cerr << argumentParser;
exit(2);
}
// Load settings
mbgl::Settings_JSON settings;
settings.online = !offlineFlag;
if (lonValue) settings.longitude = args::get(lonValue);
if (latValue) settings.latitude = args::get(latValue);
if (zoomValue) settings.zoom = args::get(zoomValue);
if (bearingValue) settings.bearing = args::get(bearingValue);
if (pitchValue) settings.pitch = args::get(pitchValue);
const bool fullscreen = fullscreenFlag ? args::get(fullscreenFlag) : false;
const bool benchmark = benchmarkFlag ? args::get(benchmarkFlag) : false;
std::string style = styleValue ? args::get(styleValue) : "";
const std::string cacheDB = cacheDBValue ? args::get(cacheDBValue) : "/tmp/mbgl-cache.db";
// sigint handling
struct sigaction sigIntHandler;
sigIntHandler.sa_handler = quit_handler;
sigemptyset(&sigIntHandler.sa_mask);
sigIntHandler.sa_flags = 0;
sigaction(SIGINT, &sigIntHandler, nullptr);
if (benchmark) {
mbgl::Log::Info(mbgl::Event::General, "BENCHMARK MODE: Some optimizations are disabled.");
}
GLFWView backend(fullscreen, benchmark);
view = &backend;
// Set access token if present
std::string token(getenv("MAPBOX_ACCESS_TOKEN") ?: "");
if (token.empty()) {
mbgl::Log::Warning(mbgl::Event::Setup, "no access token set. mapbox.com tiles won't work.");
}
mbgl::ResourceOptions resourceOptions;
resourceOptions.withCachePath(cacheDB).withAccessToken(token);
auto onlineFileSource =
mbgl::FileSourceManager::get()->getFileSource(mbgl::FileSourceType::Network, resourceOptions);
if (!settings.online) {
if (onlineFileSource) {
onlineFileSource->setProperty("online-status", false);
mbgl::Log::Warning(mbgl::Event::Setup, "Application is offline. Press `O` to toggle online status.");
} else {
mbgl::Log::Warning(mbgl::Event::Setup,
"Network resource provider is not available, only local requests are supported.");
}
}
GLFWRendererFrontend rendererFrontend { std::make_unique<mbgl::Renderer>(view->getPixelRatio()) , *view };
mbgl::Map map(rendererFrontend, *view,
mbgl::MapOptions().withSize(view->getSize()).withPixelRatio(view->getPixelRatio()), resourceOptions);
backend.setMap(&map);
if (!style.empty() && style.find("://") == std::string::npos) {
style = std::string("file://") + style;
}
map.jumpTo(mbgl::CameraOptions()
.withCenter(mbgl::LatLng {settings.latitude, settings.longitude})
.withZoom(settings.zoom)
.withBearing(settings.bearing)
.withPitch(settings.pitch));
map.setDebug(mbgl::MapDebugOptions(settings.debug));
if (testDirValue) view->setTestDirectory(args::get(testDirValue));
view->setOnlineStatusCallback([&settings, onlineFileSource]() {
if (!onlineFileSource) {
mbgl::Log::Warning(mbgl::Event::Setup,
"Cannot change online status. Network resource provider is not available.");
return;
}
settings.online = !settings.online;
onlineFileSource->setProperty("online-status", settings.online);
mbgl::Log::Info(mbgl::Event::Setup, "Application is %s. Press `O` to toggle online status.", settings.online ? "online" : "offline");
});
view->setChangeStyleCallback([&map] () {
static uint8_t currentStyleIndex;
if (++currentStyleIndex == mbgl::util::default_styles::numOrderedStyles) {
currentStyleIndex = 0;
}
mbgl::util::default_styles::DefaultStyle newStyle = mbgl::util::default_styles::orderedStyles[currentStyleIndex];
map.getStyle().loadURL(newStyle.url);
view->setWindowTitle(newStyle.name);
mbgl::Log::Info(mbgl::Event::Setup, "Changed style to: %s", newStyle.name);
});
// Resource loader controls top-level request processing and can resume / pause all managed sources simultaneously.
auto resourceLoader =
mbgl::FileSourceManager::get()->getFileSource(mbgl::FileSourceType::ResourceLoader, resourceOptions);
view->setPauseResumeCallback([resourceLoader]() {
static bool isPaused = false;
if (isPaused) {
resourceLoader->resume();
} else {
resourceLoader->pause();
}
isPaused = !isPaused;
});
// Database file source.
auto databaseFileSource = std::static_pointer_cast<mbgl::DatabaseFileSource>(
mbgl::FileSourceManager::get()->getFileSource(mbgl::FileSourceType::Database, resourceOptions));
view->setResetCacheCallback([databaseFileSource]() {
databaseFileSource->resetDatabase([](std::exception_ptr ex) {
if (ex) {
mbgl::Log::Error(mbgl::Event::Database, "Failed to reset cache:: %s", mbgl::util::toString(ex).c_str());
}
});
});
// Load style
if (style.empty()) {
const char *url = getenv("MAPBOX_STYLE_URL");
if (url == nullptr) {
mbgl::util::default_styles::DefaultStyle newStyle = mbgl::util::default_styles::orderedStyles[0];
style = newStyle.url;
view->setWindowTitle(newStyle.name);
} else {
style = url;
view->setWindowTitle(url);
}
}
map.getStyle().loadURL(style);
view->run();
// Save settings
mbgl::CameraOptions camera = map.getCameraOptions();
settings.latitude = camera.center->latitude();
settings.longitude = camera.center->longitude();
settings.zoom = *camera.zoom;
settings.bearing = *camera.bearing;
settings.pitch = *camera.pitch;
settings.debug = mbgl::EnumType(map.getDebug());
settings.save();
mbgl::Log::Info(mbgl::Event::General,
R"(Exit location: --lat="%f" --lon="%f" --zoom="%f" --bearing "%f")",
settings.latitude, settings.longitude, settings.zoom, settings.bearing);
view = nullptr;
return 0;
}
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