portapack-mayhem/firmware/common/ui_painter.cpp
2016-02-03 13:23:46 -08:00

113 lines
3.0 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "ui_painter.hpp"
#include "ui_widget.hpp"
#include "portapack.hpp"
using namespace portapack;
namespace ui {
Style Style::invert() const {
return {
.font = font,
.background = foreground,
.foreground = background,
};
}
int Painter::draw_char(const Point p, const Style& style, const char c) {
const auto glyph = style.font.glyph(c);
display.draw_glyph(p, glyph, style.foreground, style.background);
return glyph.advance().x;
}
int Painter::draw_string(Point p, const Style& style, const std::string text) {
size_t width = 0;
for(const auto c : text) {
const auto glyph = style.font.glyph(c);
display.draw_glyph(p, glyph, style.foreground, style.background);
const auto advance = glyph.advance();
p += advance;
width += advance.x;
}
return width;
}
void Painter::draw_bitmap(const Point p, const Bitmap& bitmap, const Color foreground, const Color background) {
display.draw_bitmap(p, bitmap.size, bitmap.data, foreground, background);
}
void Painter::draw_hline(Point p, int width, const Color c) {
display.fill_rectangle({ p, { width, 1 } }, c);
}
void Painter::draw_vline(Point p, int height, const Color c) {
display.fill_rectangle({ p, { 1, height } }, c);
}
void Painter::draw_rectangle(const Rect r, const Color c) {
draw_hline(r.pos, r.size.w, c);
draw_vline({ r.pos.x, r.pos.y + 1 }, r.size.h - 2, c);
draw_vline({ r.pos.x + r.size.w - 1, r.pos.y + 1 }, r.size.h - 2, c);
draw_hline({ r.pos.x, r.pos.y + r.size.h - 1 }, r.size.w, c);
}
void Painter::fill_rectangle(const Rect r, const Color c) {
display.fill_rectangle(r, c);
}
void Painter::paint_widget_tree(Widget* const w) {
if( ui::is_dirty() ) {
paint_widget(w);
ui::dirty_clear();
}
}
void Painter::paint_widget(Widget* const w) {
if( w->hidden() ) {
// Mark widget (and all children) as invisible.
w->visible(false);
} else {
// Mark this widget as visible and recurse.
w->visible(true);
if( w->dirty() ) {
w->paint(*this);
// Force-paint all children.
for(const auto child : w->children()) {
child->set_dirty();
paint_widget(child);
}
w->set_clean();
} else {
// Selectively paint all children.
for(const auto child : w->children()) {
paint_widget(child);
}
}
}
}
} /* namespace ui */