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annotate Framework/Widgets/PanMouseTracker.cpp @ 332:50e5ec1bdd46 am-2

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separating ZoomMouseTracker and PanMouseTracker from WorldSceneWidget
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 17 Oct 2018 19:38:39 +0200
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children 99e31898910e
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "PanMouseTracker.h"
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23
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24 #include <Core/Logging.h>
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25
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26 namespace OrthancStone
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27 {
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28 PanMouseTracker::PanMouseTracker(WorldSceneWidget& that,
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29 int x,
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30 int y) :
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31 that_(that)
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32 {
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33 that.GetView().GetPan(originalPanX_, originalPanY_);
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34 that.GetView().MapPixelCenterToScene(downX_, downY_, x, y);
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35 }
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36
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38 void PanMouseTracker::Render(CairoContext& context,
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39 double zoom)
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40 {
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41 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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42 }
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45 void PanMouseTracker::MouseMove(int displayX,
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46 int displayY,
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47 double x,
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48 double y)
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49 {
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50 ViewportGeometry view = that_.GetView();
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51 view.SetPan(originalPanX_ + (x - downX_) * view.GetZoom(),
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52 originalPanY_ + (y - downY_) * view.GetZoom());
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53 that_.SetView(view);
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54 }
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55 }