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_UVRotateTool
21 #define TrenchBroom_UVRotateTool
22 
23 #include "Model/Hit.h"
24 #include "View/Tool.h"
25 #include "View/ToolController.h"
26 #include "View/ViewTypes.h"
27 
28 namespace TrenchBroom {
29     namespace Model {
30         class PickResult;
31     }
32 
33     namespace Renderer {
34         class RenderBatch;
35         class RenderContext;
36     }
37 
38     namespace View {
39         class UVViewHelper;
40 
41         class UVRotateTool : public ToolControllerBase<PickingPolicy, NoKeyPolicy, NoMousePolicy, MouseDragPolicy, RenderPolicy, NoDropPolicy>, public Tool {
42         public:
43             static const Model::Hit::HitType AngleHandleHit;
44         private:
45             static const float CenterHandleRadius;
46             static const float RotateHandleRadius;
47             static const float RotateHandleWidth;
48 
49             MapDocumentWPtr m_document;
50             UVViewHelper& m_helper;
51 
52             float m_initalAngle;
53         public:
54             UVRotateTool(MapDocumentWPtr document, UVViewHelper& helper);
55         private:
56             Tool* doGetTool();
57 
58             void doPick(const InputState& inputState, Model::PickResult& pickResult);
59 
60             bool doStartMouseDrag(const InputState& inputState);
61             bool doMouseDrag(const InputState& inputState);
62 
63             float measureAngle(const Vec2f& point) const;
64             float snapAngle(float angle) const;
65 
66             void doEndMouseDrag(const InputState& inputState);
67             void doCancelMouseDrag();
68 
69             class Render;
70             void doRender(const InputState& inputState, Renderer::RenderContext& renderContext, Renderer::RenderBatch& renderBatch);
71 
72             bool doCancel();
73         };
74     }
75 }
76 
77 #endif /* defined(TrenchBroom_UVRotateTool) */
78