Mercurial > hg > orthanc-stone
view Samples/WebAssembly/dev.h @ 1070:d7887f88710f broker
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 15 Oct 2019 21:28:46 +0200 |
parents | 9c2f6d6b9f4a |
children | 2d8ab34c8c91 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #pragma once #include "../../Framework/Viewport/WebAssemblyViewport.h" #include "../../Framework/Scene2D/OpenGLCompositor.h" #include "../../Framework/Scene2D/PanSceneTracker.h" #include "../../Framework/Scene2D/RotateSceneTracker.h" #include "../../Framework/Scene2D/ZoomSceneTracker.h" #include "../../Framework/Scene2DViewport/UndoStack.h" #include "../../Framework/Scene2DViewport/ViewportController.h" #include <Core/OrthancException.h> #include <emscripten/html5.h> #include <boost/make_shared.hpp> static const unsigned int FONT_SIZE = 32; namespace OrthancStone { class ActiveTracker : public boost::noncopyable { private: boost::shared_ptr<IFlexiblePointerTracker> tracker_; std::string canvasIdentifier_; bool insideCanvas_; public: ActiveTracker(const boost::shared_ptr<IFlexiblePointerTracker>& tracker, const std::string& canvasId) : tracker_(tracker), canvasIdentifier_(canvasId), insideCanvas_(true) { if (tracker_.get() == NULL) { throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); } } bool IsAlive() const { return tracker_->IsAlive(); } void PointerMove(const PointerEvent& event) { tracker_->PointerMove(event); } void PointerUp(const PointerEvent& event) { tracker_->PointerUp(event); } }; } static OrthancStone::PointerEvent* ConvertMouseEvent( const EmscriptenMouseEvent& source, OrthancStone::IViewport& viewport) { std::auto_ptr<OrthancStone::PointerEvent> target( new OrthancStone::PointerEvent); target->AddPosition(viewport.GetPixelCenterCoordinates( source.targetX, source.targetY)); target->SetAltModifier(source.altKey); target->SetControlModifier(source.ctrlKey); target->SetShiftModifier(source.shiftKey); return target.release(); } std::auto_ptr<OrthancStone::ActiveTracker> tracker_; EM_BOOL OnMouseEvent(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData) { if (mouseEvent != NULL && userData != NULL) { boost::shared_ptr<OrthancStone::ViewportController>& controller = *reinterpret_cast<boost::shared_ptr<OrthancStone::ViewportController>*>(userData); switch (eventType) { case EMSCRIPTEN_EVENT_CLICK: { static unsigned int count = 0; char buf[64]; sprintf(buf, "click %d", count++); std::auto_ptr<OrthancStone::TextSceneLayer> layer(new OrthancStone::TextSceneLayer); layer->SetText(buf); controller->GetViewport().GetScene().SetLayer(100, layer.release()); controller->GetViewport().Refresh(); break; } case EMSCRIPTEN_EVENT_MOUSEDOWN: { boost::shared_ptr<OrthancStone::IFlexiblePointerTracker> t; { std::auto_ptr<OrthancStone::PointerEvent> event( ConvertMouseEvent(*mouseEvent, controller->GetViewport())); switch (mouseEvent->button) { case 0: // Left button emscripten_console_log("Creating RotateSceneTracker"); t.reset(new OrthancStone::RotateSceneTracker( controller, *event)); break; case 1: // Middle button emscripten_console_log("Creating PanSceneTracker"); LOG(INFO) << "Creating PanSceneTracker" ; t.reset(new OrthancStone::PanSceneTracker( controller, *event)); break; case 2: // Right button emscripten_console_log("Creating ZoomSceneTracker"); t.reset(new OrthancStone::ZoomSceneTracker( controller, *event, controller->GetViewport().GetCanvasWidth())); break; default: break; } } if (t.get() != NULL) { tracker_.reset( new OrthancStone::ActiveTracker(t, controller->GetViewport().GetCanvasIdentifier())); controller->GetViewport().Refresh(); } break; } case EMSCRIPTEN_EVENT_MOUSEMOVE: if (tracker_.get() != NULL) { std::auto_ptr<OrthancStone::PointerEvent> event( ConvertMouseEvent(*mouseEvent, controller->GetViewport())); tracker_->PointerMove(*event); controller->GetViewport().Refresh(); } break; case EMSCRIPTEN_EVENT_MOUSEUP: if (tracker_.get() != NULL) { std::auto_ptr<OrthancStone::PointerEvent> event( ConvertMouseEvent(*mouseEvent, controller->GetViewport())); tracker_->PointerUp(*event); controller->GetViewport().Refresh(); if (!tracker_->IsAlive()) tracker_.reset(); } break; default: break; } } return true; } void SetupEvents(const std::string& canvas, boost::shared_ptr<OrthancStone::ViewportController>& controller) { emscripten_set_mousedown_callback(canvas.c_str(), &controller, false, OnMouseEvent); emscripten_set_mousemove_callback(canvas.c_str(), &controller, false, OnMouseEvent); emscripten_set_mouseup_callback(canvas.c_str(), &controller, false, OnMouseEvent); }