| 1 | // Copyright (C) 2015 ChaosForge Ltd
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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 | #include "nv/gui/gui_ascii_renderer.hh"
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| 8 |
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| 9 | using namespace nv;
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| 10 | using namespace nv::gui;
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| 11 |
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| 12 |
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| 13 | struct ascii_render_data : public render_data
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| 14 | {
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| 15 | ascii_render_data() {}
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| 16 | bool border;
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| 17 | char border_chars[8];
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| 18 | uint32 border_color;
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| 19 | uint32 text_color;
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| 20 | };
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| 21 |
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| 22 |
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| 23 | ascii_renderer::ascii_renderer( terminal* t )
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| 24 | : m_terminal(t)
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| 25 | {
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| 26 |
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| 27 | }
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| 28 |
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| 29 | void ascii_renderer::redraw( element* e, uint32 )
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| 30 | {
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| 31 | ascii_render_data* er = nullptr;
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| 32 | if ( e->m_render_data == nullptr )
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| 33 | {
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| 34 | er = new ascii_render_data;
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| 35 | er->border = false;
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| 36 | er->text_color = 0;
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| 37 | e->m_render_data = er;
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| 38 | }
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| 39 | else
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| 40 | er = (ascii_render_data*)( e->m_render_data );
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| 41 |
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| 42 | rectangle abs = e->m_absolute;
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| 43 | if ( abs != get_area() )
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| 44 | {
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| 45 | int color = 0;
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| 46 | std::string path;
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| 47 | std::string text;
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| 48 | const char* stext[] = { nullptr, "selected", "hover" };
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| 49 | const char* selector = stext[0];
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| 50 | if ( e->m_flags[HOVER] ) selector = stext[2];
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| 51 | if ( e->m_flags[SELECTED] ) selector = stext[1];
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| 52 |
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| 53 |
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| 54 | m_style.get( e, "ascii_color", selector, color );
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| 55 | er->text_color = uint32( color );
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| 56 | er->border = false;
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| 57 | if ( m_style.get( e, "ascii_border", selector, path ) )
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| 58 | {
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| 59 | er->border = true;
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| 60 | er->border_color = er->text_color;
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| 61 | int border_color = 0;
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| 62 | if ( m_style.get( e, "ascii_border_color", selector, border_color ) )
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| 63 | er->border_color = uint32( border_color );
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| 64 | for ( uint32 i = 0; i < 8 && i < path.length(); )
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| 65 | er->border_chars[i] = path[i];
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| 66 | }
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| 67 | }
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| 68 | }
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| 69 |
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| 70 | void ascii_renderer::draw( element* e )
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| 71 | {
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| 72 | ascii_render_data* er = (ascii_render_data*)( e->m_render_data );
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| 73 | rectangle abs = e->m_absolute;
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| 74 | m_terminal->clear( abs );
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| 75 | if ( er->border )
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| 76 | {
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| 77 | for ( int x = 0; x < abs.get_width(); ++x )
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| 78 | {
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| 79 | m_terminal->print( position( abs.ul.y, abs.ul.x + x ), er->border_color, er->border_chars[0] );
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| 80 | m_terminal->print( position( abs.lr.y, abs.ul.x + x ), er->border_color, er->border_chars[1] );
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| 81 | }
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| 82 |
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| 83 | for ( int y = 0; y < abs.get_height(); ++y )
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| 84 | {
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| 85 | m_terminal->print( position( abs.ul.y + y, abs.ul.x ), er->border_color, er->border_chars[2] );
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| 86 | m_terminal->print( position( abs.ul.y + y, abs.lr.x ), er->border_color, er->border_chars[3] );
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| 87 | }
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| 88 |
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| 89 | m_terminal->print( abs.ul, er->border_color, er->border_chars[4] );
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| 90 | m_terminal->print( abs.ur(), er->border_color, er->border_chars[5] );
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| 91 | m_terminal->print( abs.ll(), er->border_color, er->border_chars[6] );
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| 92 | m_terminal->print( abs.lr, er->border_color, er->border_chars[7] );
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| 93 | }
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| 94 | if ( !e->m_text.empty() )
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| 95 | {
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| 96 | position p = abs.ul;
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| 97 | for ( char c : e->m_text )
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| 98 | {
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| 99 | m_terminal->print( p, er->text_color, c );
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| 100 | ++p.x;
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| 101 | }
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| 102 | }
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| 103 | }
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| 104 |
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| 105 | void ascii_renderer::draw()
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| 106 | {
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| 107 | m_terminal->update();
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| 108 | }
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| 109 |
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| 110 | void nv::gui::ascii_renderer::on_hover_change( element* e, bool hover )
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| 111 | {
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| 112 | // TODO: FIX
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| 113 | NV_LOG( nv::LOG_DEBUG, "on_hover_change" );
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| 114 | e->m_flags[DIRTY] = true;
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| 115 | }
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| 116 |
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| 117 | void nv::gui::ascii_renderer::on_select_change( element* e, bool select )
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| 118 | {
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| 119 | // TODO: FIX
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| 120 | NV_LOG( nv::LOG_DEBUG, "on_select_change" );
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| 121 | e->m_flags[DIRTY] = true;
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| 122 | }
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| 123 |
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| 124 | rectangle ascii_renderer::get_area() const
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| 125 | {
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| 126 | return rectangle().dim( m_terminal->get_size() );
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| 127 | }
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| 128 |
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| 129 | ascii_renderer::~ascii_renderer()
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| 130 | {
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| 131 |
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| 132 | }
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