| 1 | // Copyright (C) 2012-2013 ChaosForge / Kornel Kisielewicz
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| 2 | // http://chaosforge.org/
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| 3 | //
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| 4 | // This file is part of NV Libraries.
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| 5 | // For conditions of distribution and use, see copyright notice in nv.hh
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| 6 |
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| 7 | /**
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| 8 | * @file gui_element.hh
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| 9 | * @author Kornel Kisielewicz
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| 10 | * @brief GUI Element
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| 11 | */
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| 12 |
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| 13 | #ifndef NV_GUI_ELEMENT_HH
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| 14 | #define NV_GUI_ELEMENT_HH
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| 15 |
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| 16 | #include <nv/common.hh>
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| 17 | #include <nv/position.hh>
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| 18 | #include <nv/io_event.hh>
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| 19 | #include <nv/gui/gui_common.hh>
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| 20 |
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| 21 | namespace nv
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| 22 | {
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| 23 | namespace gui
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| 24 | {
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| 25 |
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| 26 | class handle
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| 27 | {
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| 28 | public:
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| 29 | handle() : m_index(0), m_counter(0) {}
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| 30 |
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| 31 | inline bool operator==(const handle& rhs){return m_index == rhs.m_index && m_counter == rhs.m_counter; }
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| 32 | inline bool operator!=(const handle& rhs){return !(*this == rhs);}
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| 33 |
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| 34 | bool is_nil() { return m_index == 0 && m_counter == 0; }
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| 35 | bool is_valid() { return !is_nil(); }
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| 36 | private:
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| 37 | friend class environment;
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| 38 |
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| 39 | explicit handle( uint16 a_index, uint16 a_counter ) : m_index( a_index ), m_counter(a_counter) {}
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| 40 |
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| 41 | uint16 m_index;
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| 42 | uint16 m_counter;
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| 43 | };
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| 44 |
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| 45 |
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| 46 | class element
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| 47 | {
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| 48 | public:
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| 49 | /// List type
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| 50 | typedef std::list<handle> list;
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| 51 |
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| 52 |
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| 53 | element()
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| 54 | : m_id( "" )
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| 55 | , m_this()
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| 56 | , m_parent()
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| 57 | , m_children()
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| 58 | , m_child_count(0)
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| 59 | , m_class("")
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| 60 | , m_relative()
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| 61 | , m_absolute()
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| 62 | , m_enabled( true )
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| 63 | , m_visible( true )
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| 64 | , m_dirty( true )
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| 65 | , m_render_data( nullptr ) {}
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| 66 |
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| 67 | friend class environment;
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| 68 | friend class renderer;
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| 69 | friend class style;
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| 70 |
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| 71 | string m_id; ///< id type of the object
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| 72 | handle m_this; ///< pointer to parent
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| 73 | handle m_parent; ///< pointer to parent
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| 74 | list m_children; ///< children objects
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| 75 | size_t m_child_count; ///< number of children
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| 76 | string m_class; ///< Class name.
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| 77 | string m_text; ///< Displayed label or text.
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| 78 | rectangle m_relative; ///< Position relative to parent.
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| 79 | rectangle m_absolute; ///< Position relative to window/screen.
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| 80 | bool m_enabled; ///< Whether the element accepts events.
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| 81 | bool m_visible; ///< Whether the element is drawn.
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| 82 | bool m_dirty; ///< Whether the element needs updating.
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| 83 | render_data* m_render_data; ///< -?-
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| 84 | };
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| 85 |
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| 86 | } // namespace gui
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| 87 |
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| 88 | } // namespace nv
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| 89 |
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| 90 | #endif // NV_GUI_ELEMENT_HH
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