mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "ui_console.hpp"
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#include "portapack.hpp"
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using namespace portapack;
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namespace ui {
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void Console::clear() {
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display.fill_rectangle(
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screen_rect(),
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Color::black()
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);
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pos = { 0, 0 };
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display.scroll_set_position(0);
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}
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void Console::write(const std::string& message) {
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const Style& s = style();
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const Font& font = s.font;
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const auto rect = screen_rect();
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for(const auto c : message) {
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if( c == '\n' ) {
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crlf();
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} else {
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const auto glyph = font.glyph(c);
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const auto advance = glyph.advance();
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if( (pos.x + advance.x) > rect.width() ) {
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crlf();
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}
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const Point pos_glyph {
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rect.pos.x + pos.x,
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display.scroll_area_y(pos.y)
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};
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display.draw_glyph(pos_glyph, glyph, s.foreground, s.background);
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pos.x += advance.x;
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}
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}
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}
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void Console::writeln(const std::string& message) {
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write(message);
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crlf();
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}
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void Console::paint(Painter& painter) {
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// Do nothing.
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(void)painter;
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}
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void Console::on_show() {
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const auto screen_r = screen_rect();
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display.scroll_set_area(screen_r.top(), screen_r.bottom());
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clear();
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}
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void Console::on_hide() {
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/* TODO: Clear region to eliminate brief flash of content at un-shifted
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* position?
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*/
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display.scroll_disable();
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}
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void Console::crlf() {
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const Style& s = style();
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const auto sr = screen_rect();
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const auto line_height = s.font.line_height();
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pos.x = 0;
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pos.y += line_height;
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const int32_t y_excess = pos.y + line_height - sr.height();
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if( y_excess > 0 ) {
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display.scroll(-y_excess);
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pos.y -= y_excess;
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const Rect dirty { sr.left(), display.scroll_area_y(pos.y), sr.width(), line_height };
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display.fill_rectangle(dirty, s.background);
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}
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}
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} /* namespace ui */
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