1 /*
2  * This file is part of the Colobot: Gold Edition source code
3  * Copyright (C) 2001-2020, Daniel Roux, EPSITEC SA & TerranovaTeam
4  * http://epsitec.ch; http://colobot.info; http://github.com/colobot
5  *
6  * This program 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  * This program 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.
14  * See the GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program. If not, see http://gnu.org/licenses
18  */
19 
20 #pragma once
21 
22 #include "ui/controls/control.h"
23 
24 #include "common/event.h"
25 
26 #include <memory>
27 
28 namespace Ui
29 {
30 
31 class CButton;
32 
33 const float SCROLL_WIDTH = (15.0f/640.0f);
34 
35 
36 
37 class CScroll : public CControl
38 {
39 public:
40     CScroll();
41     ~CScroll();
42 
43     bool        Create(Math::Point pos, Math::Point dim, int icon, EventType eventMsg) override;
44 
45     void        SetPos(Math::Point pos) override;
46     void        SetDim(Math::Point dim) override;
47 
48     bool        SetState(int state, bool bState) override;
49     bool        SetState(int state) override;
50     bool        ClearState(int state) override;
51 
52     bool        EventProcess(const Event &event) override;
53     void        Draw() override;
54 
55     void        SetVisibleValue(float value);
56     float       GetVisibleValue();
57 
58     void        SetVisibleRatio(float value);
59     float       GetVisibleRatio();
60 
61     void        SetArrowStep(float step);
62     float       GetArrowStep();
63 
64 protected:
65     void        MoveAdjust();
66     void        AdjustGlint();
67     void        DrawVertex(Math::Point pos, Math::Point dim, int icon);
68 
69 protected:
70     std::unique_ptr<CButton> m_buttonUp;
71     std::unique_ptr<CButton> m_buttonDown;
72 
73     float       m_visibleValue;
74     float       m_visibleRatio;
75     float       m_step;
76 
77     bool        m_bCapture;
78     Math::Point     m_pressPos;
79     float       m_pressValue;
80 };
81 
82 
83 } // namespace Ui
84