1 /*
2  Copyright (C) 2010-2014 Kristian Duske
3 
4  This file is part of TrenchBroom.
5 
6  TrenchBroom is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10 
11  TrenchBroom is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15 
16  You should have received a copy of the GNU General Public License
17  along with TrenchBroom. If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef TrenchBroom_CameraTool2D
21 #define TrenchBroom_CameraTool2D
22 
23 #include "VecMath.h"
24 #include "View/Tool.h"
25 #include "View/ToolController.h"
26 #include "View/ViewTypes.h"
27 
28 namespace TrenchBroom {
29     namespace Renderer {
30         class OrthographicCamera;
31     }
32 
33     namespace View {
34         class CameraTool2D : public ToolControllerBase<NoPickingPolicy, NoKeyPolicy, MousePolicy, MouseDragPolicy, NoRenderPolicy, NoDropPolicy>, public Tool {
35         private:
36             Renderer::OrthographicCamera& m_camera;
37             Vec2f m_lastMousePos;
38         public:
39             CameraTool2D(Renderer::OrthographicCamera& camera);
40         private:
41             Tool* doGetTool();
42 
43             void doMouseScroll(const InputState& inputState);
44             bool doStartMouseDrag(const InputState& inputState);
45             bool doMouseDrag(const InputState& inputState);
46             void doEndMouseDrag(const InputState& inputState);
47             void doCancelMouseDrag();
48 
49             bool zoom(const InputState& inputState) const;
50             bool look(const InputState& inputState) const;
51             bool pan(const InputState& inputState) const;
52 
53             bool doCancel();
54         };
55     }
56 }
57 
58 #endif /* defined(TrenchBroom_CameraTool2D) */
59