Mercurial > hg > orthanc-stone
diff Framework/Widgets/PanZoomMouseTracker.h @ 457:3b4df9925db6 am-touch-events
added support for 'touch' in mouse trackers. This is still a bit hacky and we need to refactor it to make it clean. Thanks to that, Pan and zoom are available together with 2 touches
author | Alain Mazy <alain@mazy.be> |
---|---|
date | Thu, 24 Jan 2019 16:42:27 +0100 |
parents | |
children | 4f2416d519b4 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Widgets/PanZoomMouseTracker.h Thu Jan 24 16:42:27 2019 +0100 @@ -0,0 +1,65 @@ +/** + * 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 "WorldSceneWidget.h" + +namespace OrthancStone +{ + class PanZoomMouseTracker : public IWorldSceneMouseTracker + { + private: + WorldSceneWidget& that_; + std::vector<Touch> originalSceneTouches_; + Touch originalSceneCenter_; + Touch originalDisplayCenter_; + double originalPanX_; + double originalPanY_; + double originalZoom_; + double originalDisplayDistanceBetweenTouches_; + bool idle_; + double normalization_; + + public: + PanZoomMouseTracker(WorldSceneWidget& that, + const std::vector<Touch>& startTouches); + + virtual bool HasRender() const + { + return false; + } + + virtual void MouseUp() + { + } + + virtual void Render(CairoContext& context, + double zoom); + + virtual void MouseMove(int displayX, + int displayY, + double x, + double y, + const std::vector<Touch>& displayTouches, + const std::vector<Touch>& sceneTouches); + }; +}