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_UVScaleTool
21 #define TrenchBroom_UVScaleTool
22 
23 #include "Model/Hit.h"
24 #include "Renderer/VertexSpec.h"
25 #include "View/Tool.h"
26 #include "View/ToolController.h"
27 #include "View/ViewTypes.h"
28 
29 namespace TrenchBroom {
30     namespace Assets {
31         class Texture;
32     }
33 
34     namespace Model {
35         class PickResult;
36     }
37 
38     namespace Renderer {
39         class RenderBatch;
40         class RenderContext;
41     }
42 
43     namespace View {
44         class UVViewHelper;
45 
46         class UVScaleTool : public ToolControllerBase<PickingPolicy, NoKeyPolicy, NoMousePolicy, MouseDragPolicy, RenderPolicy, NoDropPolicy>, public Tool {
47         private:
48             static const Model::Hit::HitType XHandleHit;
49             static const Model::Hit::HitType YHandleHit;
50         private:
51             typedef Renderer::VertexSpecs::P3::Vertex EdgeVertex;
52 
53             MapDocumentWPtr m_document;
54             UVViewHelper& m_helper;
55 
56             Vec2i m_handle;
57             Vec2b m_selector;
58             Vec2f m_lastHitPoint; // in non-scaled, non-translated texture coordinates
59         public:
60             UVScaleTool(MapDocumentWPtr document, UVViewHelper& helper);
61         private:
62             Tool* doGetTool();
63 
64             void doPick(const InputState& inputState, Model::PickResult& pickResult);
65 
66             Vec2i getScaleHandle(const Model::Hit& xHit, const Model::Hit& yHit) const;
67             Vec2f getHitPoint(const Ray3& pickRay) const;
68 
69             bool doStartMouseDrag(const InputState& inputState);
70             bool doMouseDrag(const InputState& inputState);
71             void doEndMouseDrag(const InputState& inputState);
72             void doCancelMouseDrag();
73 
74             Vec2f getScaledTranslatedHandlePos() const;
75             Vec2f getHandlePos() const;
76             Vec2f snap(const Vec2f& position) const;
77 
78             void doRender(const InputState& inputState, Renderer::RenderContext& renderContext, Renderer::RenderBatch& renderBatch);
79             EdgeVertex::List getHandleVertices(const Model::PickResult& pickResult) const;
80 
81             bool doCancel();
82         };
83     }
84 }
85 
86 #endif /* defined(TrenchBroom_UVScaleTool) */
87