118 lines
3.9 KiB
C++
118 lines
3.9 KiB
C++
/* -*-c++-*- */
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/* osgEarth - Geospatial SDK for OpenSceneGraph
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* Copyright 2018 Pelican Mapping
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* http://osgearth.org
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*
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* osgEarth is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#pragma once
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#include <osgEarthImGui/ImGuiPanel>
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#include <osgEarth/Utils>
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#include <osgEarth/EarthManipulator>
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#include <osgEarth/Geocoder>
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#include <osgEarth/ViewFitter>
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#include <osgEarth/MapNode>
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namespace osgEarth
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{
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using namespace osgEarth::Util;
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class SearchGUI : public ImGuiPanel
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{
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public:
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SearchGUI() :
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ImGuiPanel("Search"),
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_search(""),
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_results(Status::Code::ServiceUnavailable, 0)
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{
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}
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void draw(osg::RenderInfo& ri) override
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{
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if (!isVisible())
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return;
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if (!_mapSRS.valid()) {
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MapNode* mapNode = findNode<MapNode>(ri);
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if (mapNode)
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_mapSRS = mapNode->getMapSRS();
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else {
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setVisible(false);
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return;
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}
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}
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ImGui::Begin(name(), visible());
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ImGui::Text("Enter place name:");
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if (ImGui::InputText("", _search, 128,
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ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll))
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{
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_features.clear();
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_results = geocoder.search(_search, _options.get());
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}
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if (_results.isReady())
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{
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if (_results.getStatus().isOK())
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{
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_results.getFeatures()->fill(_features);
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}
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_results = Geocoder::Results(Status::Code::ServiceUnavailable, 0);
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}
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else if (_results.isWorking())
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{
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ImGui::Text("Searching...");
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}
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for (FeatureList::iterator itr = _features.begin(); itr != _features.end(); ++itr)
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{
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bool selected = false;
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Feature* feature = itr->get();
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if (feature->getGeometry())
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{
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ImGui::Separator();
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std::string displayName = itr->get()->getString("display_name");
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ImGui::Selectable(displayName.c_str(), &selected);
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if (selected)
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{
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GeoExtent extent(feature->getSRS(), feature->getGeometry()->getBounds());
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if (extent.area() == 0.0)
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extent.expand(Distance(10, Units::KILOMETERS), Distance(10, Units::KILOMETERS));
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ViewFitter fitter(_mapSRS.get(), ri.getCurrentCamera());
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Viewpoint vp;
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if (fitter.createViewpoint(extent, vp))
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{
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auto manip = dynamic_cast<EarthManipulator*>(view(ri)->getCameraManipulator());
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manip->setViewpoint(vp, 3.0f);
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}
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break;
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}
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}
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}
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ImGui::End();
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}
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char _search[128];
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Geocoder::Results _results;
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osg::ref_ptr<osgDB::Options> _options;
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FeatureList _features;
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Geocoder geocoder;
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osg::ref_ptr<const SpatialReference> _mapSRS;
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};
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}
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