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comparison 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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331:7ccf919faff0 332:50e5ec1bdd46
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #include "PanMouseTracker.h"
23
24 #include <Core/Logging.h>
25
26 namespace OrthancStone
27 {
28 PanMouseTracker::PanMouseTracker(WorldSceneWidget& that,
29 int x,
30 int y) :
31 that_(that)
32 {
33 that.GetView().GetPan(originalPanX_, originalPanY_);
34 that.GetView().MapPixelCenterToScene(downX_, downY_, x, y);
35 }
36
37
38 void PanMouseTracker::Render(CairoContext& context,
39 double zoom)
40 {
41 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
42 }
43
44
45 void PanMouseTracker::MouseMove(int displayX,
46 int displayY,
47 double x,
48 double y)
49 {
50 ViewportGeometry view = that_.GetView();
51 view.SetPan(originalPanX_ + (x - downX_) * view.GetZoom(),
52 originalPanY_ + (y - downY_) * view.GetZoom());
53 that_.SetView(view);
54 }
55 }