mayhem-firmware/firmware/common/ui_widget.cpp
furrtek 58f113d153 "CW generator" and "Whistle" merged in "Signal generator"
Added wave shape selection and tone frequency auto-update
Converted color icons to B&W
2017-07-18 19:31:05 +01:00

1557 lines
33 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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_widget.hpp"
#include "ui_painter.hpp"
#include "portapack.hpp"
#include <cstdint>
#include <cstddef>
#include <algorithm>
#include "string_format.hpp"
using namespace portapack;
namespace ui {
static bool ui_dirty = true;
void dirty_set() {
ui_dirty = true;
}
void dirty_clear() {
ui_dirty = false;
}
bool is_dirty() {
return ui_dirty;
}
/* Widget ****************************************************************/
const std::vector<Widget*> Widget::no_children { };
Point Widget::screen_pos() {
return screen_rect().location();
}
Size Widget::size() const {
return _parent_rect.size();
}
Rect Widget::screen_rect() const {
return parent() ? (parent_rect() + parent()->screen_pos()) : parent_rect();
}
Rect Widget::parent_rect() const {
return _parent_rect;
}
void Widget::set_parent_rect(const Rect new_parent_rect) {
_parent_rect = new_parent_rect;
set_dirty();
}
Widget* Widget::parent() const {
return parent_;
}
void Widget::set_parent(Widget* const widget) {
if( widget == parent_ ) {
return;
}
if( parent_ && !widget ) {
// We have a parent, but are losing it. Update visible status.
dirty_overlapping_children_in_rect(screen_rect());
visible(false);
}
parent_ = widget;
set_dirty();
}
void Widget::set_dirty() {
flags.dirty = true;
dirty_set();
}
bool Widget::dirty() const {
return flags.dirty;
}
void Widget::set_clean() {
flags.dirty = false;
}
void Widget::hidden(bool hide) {
if( hide != flags.hidden ) {
flags.hidden = hide;
// If parent is hidden, either of these is a no-op.
if( hide ) {
// TODO: Instead of dirtying parent entirely, dirty only children
// that overlap with this widget.
parent()->dirty_overlapping_children_in_rect(parent_rect());
/* TODO: Notify self and all non-hidden children that they're
* now effectively hidden?
*/
} else {
set_dirty();
/* TODO: Notify self and all non-hidden children that they're
* now effectively shown?
*/
}
}
}
void Widget::focus() {
context().focus_manager().set_focus_widget(this);
}
void Widget::on_focus() {
//set_dirty();
}
void Widget::blur() {
context().focus_manager().set_focus_widget(nullptr);
}
void Widget::on_blur() {
//set_dirty();
}
bool Widget::focusable() const {
return flags.focusable;
}
void Widget::set_focusable(const bool value) {
flags.focusable = value;
}
bool Widget::has_focus() {
return (context().focus_manager().focus_widget() == this);
}
bool Widget::on_key(const KeyEvent event) {
(void)event;
return false;
}
bool Widget::on_encoder(const EncoderEvent event) {
(void)event;
return false;
}
bool Widget::on_touch(const TouchEvent event) {
(void)event;
return false;
}
const std::vector<Widget*>& Widget::children() const {
return no_children;
}
Context& Widget::context() const {
return parent()->context();
}
void Widget::set_style(const Style* new_style) {
if( new_style != style_ ) {
style_ = new_style;
set_dirty();
}
}
const Style& Widget::style() const {
return style_ ? *style_ : parent()->style();
}
void Widget::visible(bool v) {
if( v != flags.visible ) {
flags.visible = v;
/* TODO: This on_show/on_hide implementation seems inelegant.
* But I need *some* way to take/configure resources when
* a widget becomes visible, and reverse the process when the
* widget becomes invisible, whether the widget (or parent) is
* hidden, or the widget (or parent) is removed from the tree.
*/
if( v ) {
on_show();
} else {
on_hide();
// Set all children invisible too.
for(const auto child : children()) {
child->visible(false);
}
}
}
}
bool Widget::highlighted() const {
return flags.highlighted;
}
void Widget::set_highlighted(const bool value) {
flags.highlighted = value;
}
void Widget::dirty_overlapping_children_in_rect(const Rect& child_rect) {
for(auto child : children()) {
if( !child_rect.intersect(child->parent_rect()).is_empty() ) {
child->set_dirty();
}
}
}
/* View ******************************************************************/
void View::paint(Painter& painter) {
painter.fill_rectangle(
screen_rect(),
style().background
);
}
void View::add_child(Widget* const widget) {
if( widget ) {
if( widget->parent() == nullptr ) {
widget->set_parent(this);
children_.push_back(widget);
}
}
}
void View::add_children(const std::initializer_list<Widget*> children) {
children_.insert(std::end(children_), children);
for(auto child : children) {
child->set_parent(this);
}
}
void View::remove_child(Widget* const widget) {
if( widget ) {
children_.erase(std::remove(children_.begin(), children_.end(), widget), children_.end());
widget->set_parent(nullptr);
}
}
void View::remove_children(const std::vector<Widget*>& children) {
for(auto child : children) {
remove_child(child);
}
}
const std::vector<Widget*>& View::children() const {
return children_;
}
std::string View::title() const {
return "";
};
/* Rectangle *************************************************************/
Rectangle::Rectangle(
Color c
) : Widget { },
color { c }
{
}
Rectangle::Rectangle(
Rect parent_rect,
Color c
) : Widget { parent_rect },
color { c }
{
}
void Rectangle::set_color(const Color c) {
color = c;
set_dirty();
}
void Rectangle::set_outline(const bool outline) {
_outline = outline;
set_dirty();
}
void Rectangle::paint(Painter& painter) {
if (!_outline) {
painter.fill_rectangle(
screen_rect(),
color
);
} else {
painter.draw_rectangle(
screen_rect(),
color
);
}
}
/* Text ******************************************************************/
Text::Text(
Rect parent_rect,
std::string text
) : Widget { parent_rect },
text { text }
{
}
Text::Text(
Rect parent_rect
) : Text { parent_rect, { } }
{
}
void Text::set(const std::string value) {
text = value;
set_dirty();
}
void Text::paint(Painter& painter) {
const auto rect = screen_rect();
const auto s = style();
painter.fill_rectangle(rect, s.background);
painter.draw_string(
rect.location(),
s,
text
);
}
/* Labels ****************************************************************/
Labels::Labels(
std::initializer_list<Label> labels
) : labels_ { labels }
{
}
void Labels::set_labels(std::initializer_list<Label> labels) {
labels_ = labels;
set_dirty();
}
void Labels::paint(Painter& painter) {
for (auto &label : labels_) {
painter.draw_string(
label.pos + screen_pos(),
style().font,
label.color,
style().background,
label.text
);
}
}
/* BigFrequency **********************************************************/
BigFrequency::BigFrequency(
Rect parent_rect,
rf::Frequency frequency
) : Widget { parent_rect },
_frequency { frequency }
{
}
void BigFrequency::set(const rf::Frequency frequency) {
_frequency = frequency;
set_dirty();
}
void BigFrequency::paint(Painter& painter) {
uint32_t i, digit_def;
char digits[7];
char digit;
Coord digit_x, digit_y;
ui::Color segment_color;
const auto rect = screen_rect();
// Erase
painter.fill_rectangle({{0, rect.location().y()}, {240, 52}}, ui::Color::black());
if (!_frequency) {
for (i = 0; i < 7; i++) // ----.------
digits[i] = 10;
} else {
_frequency /= 1000; // GMMM.KKKuuu
for (i = 0; i < 7; i++) {
digits[6 - i] = _frequency % 10;
_frequency /= 10;
}
// Remove leading zeros
for (i = 0; i < 7; i++) {
if (!digits[i])
digits[i] = 16; // "Don't draw" code
else
break;
}
}
segment_color = style().foreground;
// Draw
digit_x = rect.location().x(); // 7 * 32 + 8 = 232 (4 px margins)
for (i = 0; i < 7; i++) {
digit = digits[i];
digit_y = rect.location().y();
if (digit < 16) {
digit_def = segment_font[(uint8_t)digit];
if (digit_def & 0x01) painter.fill_rectangle({{digit_x + 4, digit_y}, {20, 4}}, segment_color);
if (digit_def & 0x02) painter.fill_rectangle({{digit_x + 24, digit_y + 4}, {4, 20}}, segment_color);
if (digit_def & 0x04) painter.fill_rectangle({{digit_x + 24, digit_y + 28}, {4, 20}}, segment_color);
if (digit_def & 0x08) painter.fill_rectangle({{digit_x + 4, digit_y + 48}, {20, 4}}, segment_color);
if (digit_def & 0x10) painter.fill_rectangle({{digit_x, digit_y + 28}, {4, 20}}, segment_color);
if (digit_def & 0x20) painter.fill_rectangle({{digit_x, digit_y + 4}, {4, 20}}, segment_color);
if (digit_def & 0x40) painter.fill_rectangle({{digit_x + 4, digit_y + 24}, {20, 4}}, segment_color);
}
if (i == 3) {
// Dot
painter.fill_rectangle({{digit_x + 34, digit_y + 48}, {4, 4}}, segment_color);
digit_x += 40;
} else {
digit_x += 32;
}
}
}
/* ProgressBar ***********************************************************/
ProgressBar::ProgressBar(
Rect parent_rect
) : Widget { parent_rect }
{
}
void ProgressBar::set_max(const uint32_t max) {
if (max == _max) return;
_value = 0;
_max = max;
set_dirty();
}
void ProgressBar::set_value(const uint32_t value) {
if (value == _value) return;
if (value > _max)
_value = _max;
else
_value = value;
set_dirty();
}
void ProgressBar::paint(Painter& painter) {
int v_scaled;
const auto sr = screen_rect();
const auto s = style();
v_scaled = (sr.size().width() * _value) / _max;
painter.fill_rectangle({sr.location(), {v_scaled, sr.size().height()}}, style().foreground);
painter.fill_rectangle({{sr.location().x() + v_scaled, sr.location().y()}, {sr.size().width() - v_scaled, sr.size().height()}}, s.background);
painter.draw_rectangle(sr, s.foreground);
}
/* Console ***************************************************************/
Console::Console(
Rect parent_rect
) : Widget { parent_rect }
{
}
void Console::clear() {
display.fill_rectangle(
screen_rect(),
Color::black()
);
pos = { 0, 0 };
}
void Console::write(std::string message) {
bool escape = false;
if (visible) {
const Style& s = style();
const Font& font = s.font;
const auto rect = screen_rect();
ui::Color pen_color = s.foreground;
for (const auto c : message) {
if (escape) {
if (c == '\x01')
pen_color = ui::Color::red();
else if (c == '\x02')
pen_color = ui::Color::green();
else if (c == '\x03')
pen_color = ui::Color::blue();
escape = false;
} else {
if (c == '\n') {
crlf();
} else if (c == '\x1B') {
escape = true;
} else {
const auto glyph = font.glyph(c);
const auto advance = glyph.advance();
if( (pos.x() + advance.x()) > rect.width() ) {
crlf();
}
const Point pos_glyph {
rect.left() + pos.x(),
display.scroll_area_y(pos.y())
};
display.draw_glyph(pos_glyph, glyph, pen_color, s.background);
pos += { advance.x(), 0 };
}
}
}
buffer = message;
} else {
buffer += message;
}
}
void Console::writeln(std::string message) {
write(message);
crlf();
}
void Console::paint(Painter&) {
write(buffer);
}
void Console::on_show() {
const auto screen_r = screen_rect();
display.scroll_set_area(screen_r.top(), screen_r.bottom());
display.scroll_set_position(0);
clear();
visible = true;
}
void Console::on_hide() {
/* TODO: Clear region to eliminate brief flash of content at un-shifted
* position?
*/
display.scroll_disable();
}
void Console::crlf() {
const Style& s = style();
const auto sr = screen_rect();
const auto line_height = s.font.line_height();
pos = { 0, pos.y() + line_height };
const int32_t y_excess = pos.y() + line_height - sr.height();
if( y_excess > 0 ) {
display.scroll(-y_excess);
pos = { pos.x(), pos.y() - y_excess };
const Rect dirty { sr.left(), display.scroll_area_y(pos.y()), sr.width(), line_height };
display.fill_rectangle(dirty, s.background);
}
}
/* Checkbox **************************************************************/
Checkbox::Checkbox(
Point parent_pos,
size_t length,
std::string text,
bool small
) : Widget { },
text_ { text },
small_ { small }
{
if (!small_)
set_parent_rect({ parent_pos, { static_cast<ui::Dim>((8 * length) + 24), 24 } });
else
set_parent_rect({ parent_pos, { static_cast<ui::Dim>((8 * length) + 16), 16 } });
set_focusable(true);
}
void Checkbox::set_text(const std::string value) {
text_ = value;
set_dirty();
}
bool Checkbox::set_value(const bool value) {
value_ = value;
set_dirty();
if( on_select ) {
on_select(*this, value_);
return true;
}
return false;
}
bool Checkbox::value() const {
return value_;
}
void Checkbox::paint(Painter& painter) {
const auto r = screen_rect();
const auto paint_style = (has_focus() || highlighted()) ? style().invert() : style();
const auto x = r.location().x();
const auto y = r.location().y();
const auto label_r = paint_style.font.size_of(text_);
if (!small_) {
painter.draw_rectangle({ { r.location() }, { 24, 24 } }, style().foreground);
painter.fill_rectangle({ x + 1, y + 1, 24 - 2, 24 - 2 }, style().background);
// Highlight
painter.draw_rectangle({ x + 2, y + 2, 24 - 4, 24 - 4 }, paint_style.background);
if (value_ == true) {
// Check
portapack::display.draw_line( {x + 2, y + 14}, {x + 6, y + 18}, ui::Color::green());
portapack::display.draw_line( {x + 6, y + 18}, {x + 20, y + 4}, ui::Color::green());
} else {
// Cross
portapack::display.draw_line( {x + 1, y + 1}, {x + 24 - 2, y + 24 - 2}, ui::Color::red());
portapack::display.draw_line( {x + 24 - 2, y + 1}, {x + 1, y + 24 - 2}, ui::Color::red());
}
painter.draw_string(
{
static_cast<Coord>(x + 24 + 4),
static_cast<Coord>(y + (24 - label_r.height()) / 2)
},
paint_style,
text_
);
} else {
painter.draw_rectangle({ { r.location() }, { 16, 16 } }, style().foreground);
painter.fill_rectangle({ x + 1, y + 1, 16 - 2, 16 - 2 }, style().background);
// Highlight
painter.draw_rectangle({ x + 1, y + 1, 16 - 2, 16 - 2 }, paint_style.background);
if (value_ == true) {
// Check
portapack::display.draw_line( {x + 2, y + 8}, {x + 6, y + 12}, ui::Color::green());
portapack::display.draw_line( {x + 6, y + 12}, {x + 13, y + 5}, ui::Color::green());
} else {
// Cross
portapack::display.draw_line( {x + 1, y + 1}, {x + 16 - 2, y + 16 - 2}, ui::Color::red());
portapack::display.draw_line( {x + 16 - 2, y + 1}, {x + 1, y + 16 - 2}, ui::Color::red());
}
painter.draw_string(
{
static_cast<Coord>(x + 16 + 2),
static_cast<Coord>(y + (16 - label_r.height()) / 2)
},
paint_style,
text_
);
}
}
bool Checkbox::on_key(const KeyEvent key) {
if( key == KeyEvent::Select )
return set_value(not value_);
return false;
}
bool Checkbox::on_touch(const TouchEvent event) {
switch(event.type) {
case TouchEvent::Type::Start:
set_highlighted(true);
set_dirty();
return true;
case TouchEvent::Type::End:
set_highlighted(false);
value_ = not value_;
set_dirty();
if( on_select ) {
on_select(*this, value_);
}
return true;
default:
return false;
}
}
/* Button ****************************************************************/
Button::Button(
Rect parent_rect,
std::string text
) : Widget { parent_rect },
text_ { text }
{
set_focusable(true);
}
void Button::set_text(const std::string value) {
text_ = value;
set_dirty();
}
std::string Button::text() const {
return text_;
}
void Button::paint(Painter& painter) {
Color bg, fg;
const auto r = screen_rect();
if (has_focus() || highlighted()) {
bg = style().foreground;
fg = Color::black();
} else {
bg = Color::grey();
fg = style().foreground;
}
const Style paint_style = { style().font, bg, fg };
painter.draw_rectangle({r.location(), {r.size().width(), 1}}, Color::light_grey());
painter.draw_rectangle({r.location().x(), r.location().y() + r.size().height() - 1, r.size().width(), 1}, Color::dark_grey());
painter.draw_rectangle({r.location().x() + r.size().width() - 1, r.location().y(), 1, r.size().height()}, Color::dark_grey());
painter.fill_rectangle(
{ r.location().x(), r.location().y() + 1, r.size().width() - 1, r.size().height() - 2 },
paint_style.background
);
const auto label_r = paint_style.font.size_of(text_);
painter.draw_string(
{ r.location().x() + (r.size().width() - label_r.width()) / 2, r.location().y() + (r.size().height() - label_r.height()) / 2 },
paint_style,
text_
);
}
void Button::on_focus() {
if( on_highlight )
on_highlight(*this);
}
bool Button::on_key(const KeyEvent key) {
if( key == KeyEvent::Select ) {
if( on_select ) {
on_select(*this);
return true;
}
} else {
if( on_dir ) {
return on_dir(*this, key);
}
}
return false;
}
bool Button::on_touch(const TouchEvent event) {
switch(event.type) {
case TouchEvent::Type::Start:
set_highlighted(true);
set_dirty();
return true;
case TouchEvent::Type::End:
set_highlighted(false);
set_dirty();
if( on_select ) {
on_select(*this);
}
return true;
default:
return false;
}
#if 0
switch(event.type) {
case TouchEvent::Type::Start:
flags.highlighted = true;
set_dirty();
return true;
case TouchEvent::Type::Move:
{
const bool new_highlighted = screen_rect().contains(event.point);
if( flags.highlighted != new_highlighted ) {
flags.highlighted = new_highlighted;
set_dirty();
}
}
return true;
case TouchEvent::Type::End:
if( flags.highlighted ) {
flags.highlighted = false;
set_dirty();
if( on_select ) {
on_select(*this);
}
}
return true;
default:
return false;
}
#endif
}
/* Image *****************************************************************/
Image::Image(
) : Image { { }, nullptr, Color::white(), Color::black() }
{
}
Image::Image(
const Rect parent_rect,
const Bitmap* bitmap,
const Color foreground,
const Color background
) : Widget { parent_rect },
bitmap_ { bitmap },
foreground_ { foreground },
background_ { background }
{
}
void Image::set_bitmap(const Bitmap* bitmap) {
bitmap_ = bitmap;
set_dirty();
}
void Image::set_foreground(const Color color) {
foreground_ = color;
set_dirty();
}
void Image::set_background(const Color color) {
background_ = color;
set_dirty();
}
void Image::invert_colors() {
Color temp;
temp = background_;
background_ = foreground_;
foreground_ = temp;
set_dirty();
}
void Image::paint(Painter& painter) {
if( bitmap_ ) {
// Code also handles ImageButton behavior.
const bool selected = (has_focus() || highlighted());
painter.draw_bitmap(
screen_pos(),
*bitmap_,
selected ? background_ : foreground_,
selected ? foreground_ : background_
);
}
}
/* ImageButton ***********************************************************/
// TODO: Virtually all this code is duplicated from Button. Base class?
ImageButton::ImageButton(
const Rect parent_rect,
const Bitmap* bitmap,
const Color foreground,
const Color background
) : Image { parent_rect, bitmap, foreground, background }
{
set_focusable(true);
}
bool ImageButton::on_key(const KeyEvent key) {
if( key == KeyEvent::Select ) {
if( on_select ) {
on_select(*this);
return true;
}
}
return false;
}
bool ImageButton::on_touch(const TouchEvent event) {
switch(event.type) {
case TouchEvent::Type::Start:
set_highlighted(true);
set_dirty();
return true;
case TouchEvent::Type::End:
set_highlighted(false);
set_dirty();
if( on_select ) {
on_select(*this);
}
return true;
default:
return false;
}
}
/* ImageOptionsField *****************************************************/
ImageOptionsField::ImageOptionsField(
const Rect parent_rect,
const Color foreground,
const Color background,
const options_t options
) : Widget { parent_rect },
options { options },
foreground_ { foreground },
background_ { background }
{
set_focusable(true);
}
size_t ImageOptionsField::selected_index() const {
return selected_index_;
}
size_t ImageOptionsField::selected_index_value() const {
return options[selected_index_].second;
}
void ImageOptionsField::set_selected_index(const size_t new_index) {
if ( new_index < options.size() ) {
if ( new_index != selected_index() ) {
selected_index_ = new_index;
if ( on_change ) {
on_change(selected_index(), options[selected_index()].second);
}
set_dirty();
}
}
}
void ImageOptionsField::set_by_value(value_t v) {
size_t new_index { 0 };
for(const auto& option : options) {
if( option.second == v ) {
set_selected_index(new_index);
break;
}
new_index++;
}
}
void ImageOptionsField::set_options(options_t new_options) {
options = new_options;
set_by_value(0);
set_dirty();
}
void ImageOptionsField::paint(Painter& painter) {
const bool selected = (has_focus() || highlighted());
const auto paint_style = selected ? style().invert() : style();
painter.draw_rectangle(
{ screen_rect().location(), { screen_rect().size().width() + 4, screen_rect().size().height() + 4 } },
paint_style.background
);
painter.draw_bitmap(
{screen_pos().x() + 2, screen_pos().y() + 2},
*options[selected_index_].first,
foreground_,
background_
);
}
void ImageOptionsField::on_focus() {
if( on_show_options ) {
on_show_options();
}
}
bool ImageOptionsField::on_encoder(const EncoderEvent delta) {
set_selected_index(selected_index() + delta);
return true;
}
bool ImageOptionsField::on_touch(const TouchEvent event) {
if( event.type == TouchEvent::Type::Start ) {
focus();
}
return true;
}
/* OptionsField **********************************************************/
OptionsField::OptionsField(
Point parent_pos,
int length,
options_t options
) : Widget { { parent_pos, { 8 * length, 16 } } },
length_ { length },
options { options }
{
set_focusable(true);
}
size_t OptionsField::selected_index() const {
return selected_index_;
}
size_t OptionsField::selected_index_value() const {
return options[selected_index_].second;
}
void OptionsField::set_selected_index(const size_t new_index) {
if( new_index < options.size() ) {
if( new_index != selected_index() ) {
selected_index_ = new_index;
if( on_change ) {
on_change(selected_index(), options[selected_index()].second);
}
set_dirty();
}
}
}
void OptionsField::set_by_value(value_t v) {
size_t new_index { 0 };
for(const auto& option : options) {
if( option.second == v ) {
set_selected_index(new_index);
break;
}
new_index++;
}
}
void OptionsField::set_options(options_t new_options) {
options = new_options;
set_by_value(0);
set_dirty();
}
void OptionsField::paint(Painter& painter) {
const auto paint_style = has_focus() ? style().invert() : style();
painter.fill_rectangle({screen_rect().location(), {(int)length_ * 8, 16}}, ui::Color::black());
if( selected_index() < options.size() ) {
const auto text = options[selected_index()].first;
painter.draw_string(
screen_pos(),
paint_style,
text
);
}
}
void OptionsField::on_focus() {
if( on_show_options ) {
on_show_options();
}
}
bool OptionsField::on_encoder(const EncoderEvent delta) {
set_selected_index(selected_index() + delta);
return true;
}
bool OptionsField::on_touch(const TouchEvent event) {
if( event.type == TouchEvent::Type::Start ) {
focus();
}
return true;
}
/* NumberField ***********************************************************/
NumberField::NumberField(
Point parent_pos,
int length,
range_t range,
int32_t step,
char fill_char
) : Widget { { parent_pos, { 8 * length, 16 } } },
range { range },
step { step },
length_ { length },
fill_char { fill_char }
{
set_focusable(true);
}
int32_t NumberField::value() const {
return value_;
}
void NumberField::set_value(int32_t new_value, bool trigger_change) {
new_value = clip_value(new_value);
if( new_value != value() ) {
value_ = new_value;
if( on_change && trigger_change ) {
on_change(value_);
}
set_dirty();
}
}
void NumberField::set_range(const int32_t min, const int32_t max) {
range.first = min;
range.second = max;
set_value(value(), false);
}
void NumberField::paint(Painter& painter) {
const auto text = to_string_dec_int(value_, length_, fill_char);
const auto paint_style = has_focus() ? style().invert() : style();
painter.draw_string(
screen_pos(),
paint_style,
text
);
}
bool NumberField::on_key(const KeyEvent key) {
if( key == KeyEvent::Select ) {
if( on_select ) {
on_select(*this);
return true;
}
}
return false;
}
bool NumberField::on_encoder(const EncoderEvent delta) {
set_value(value() + (delta * step));
return true;
}
bool NumberField::on_touch(const TouchEvent event) {
if( event.type == TouchEvent::Type::Start ) {
focus();
}
return true;
}
int32_t NumberField::clip_value(int32_t value) {
if( value > range.second ) {
value = range.second;
}
if( value < range.first ) {
value = range.first;
}
return value;
}
/* SymField **************************************************************/
SymField::SymField(
Point parent_pos,
size_t length,
symfield_type type
) : Widget { { parent_pos, { static_cast<ui::Dim>(8 * length), 16 } } },
length_ { length },
type_ { type }
{
uint32_t c;
// Auto-init
if (type == SYMFIELD_OCT) {
for (c = 0; c < length; c++)
set_symbol_list(c, "01234567");
} else if (type == SYMFIELD_DEC) {
for (c = 0; c < length; c++)
set_symbol_list(c, "0123456789");
} else if (type == SYMFIELD_HEX) {
for (c = 0; c < length; c++)
set_symbol_list(c, "0123456789ABCDEF");
}
set_focusable(true);
}
uint32_t SymField::value_dec_u32() {
uint32_t c, mul = 1;
uint32_t v = 0;
if (type_ == SYMFIELD_DEC) {
for (c = 0; c < length_; c++) {
v += values_[(length_ - 1 - c)] * mul;
mul *= 10;
}
return v;
} else
return 0;
}
uint64_t SymField::value_hex_u64() {
uint32_t c;
uint64_t v = 0;
if (type_ != SYMFIELD_DEF) {
for (c = 0; c < length_; c++)
v += values_[c] << (4 * (length_ - 1 - c));
return v;
} else
return 0;
}
uint32_t SymField::get_sym(const uint32_t index) {
if (index >= length_) return 0;
return values_[index];
}
void SymField::set_sym(const uint32_t index, const uint32_t new_value) {
if (index >= length_) return;
uint32_t clipped_value = clip_value(index, new_value);
if (clipped_value != values_[index]) {
values_[index] = clipped_value;
if( on_change ) {
on_change();
}
set_dirty();
}
}
void SymField::set_length(const uint32_t new_length) {
if ((new_length <= 32) && (new_length != length_)) {
prev_length_ = length_;
length_ = new_length;
// Clip eventual garbage from previous shorter word
for (size_t n = 0; n < length_; n++)
set_sym(n, values_[n]);
erase_prev_ = true;
set_dirty();
}
}
void SymField::set_symbol_list(const uint32_t index, const std::string symbol_list) {
if (index >= length_) return;
symbol_list_[index] = symbol_list;
// Re-clip symbol's value
set_sym(index, values_[index]);
}
void SymField::paint(Painter& painter) {
Point pt_draw = screen_pos();
if (erase_prev_) {
painter.fill_rectangle( { pt_draw, { (int)prev_length_ * 8, 16 } }, Color::black() );
erase_prev_ = false;
}
for (size_t n = 0; n < length_; n++) {
const auto text = symbol_list_[n].substr(values_[n], 1);
const auto paint_style = (has_focus() && (n == selected_)) ? style().invert() : style();
painter.draw_string(
pt_draw,
paint_style,
text
);
pt_draw += { 8, 0 };
}
}
bool SymField::on_key(const KeyEvent key) {
switch (key) {
case KeyEvent::Select:
if( on_select ) {
on_select(*this);
return true;
}
break;
case KeyEvent::Left:
if (selected_ > 0) {
selected_--;
set_dirty();
return true;
}
break;
case KeyEvent::Right:
if (selected_ < (length_ - 1)) {
selected_++;
set_dirty();
return true;
}
break;
default:
break;
}
return false;
}
bool SymField::on_encoder(const EncoderEvent delta) {
int32_t new_value = (int)values_[selected_] + delta;
if (new_value >= 0)
set_sym(selected_, values_[selected_] + delta);
return true;
}
bool SymField::on_touch(const TouchEvent event) {
if (event.type == TouchEvent::Type::Start) {
focus();
}
return true;
}
int32_t SymField::clip_value(const uint32_t index, const uint32_t value) {
size_t symbol_count = symbol_list_[index].length() - 1;
if (value > symbol_count)
return symbol_count;
else
return value;
}
/* Waveform **************************************************************/
Waveform::Waveform(
Rect parent_rect,
int8_t * data,
uint32_t length,
uint32_t offset,
bool digital,
Color color
) : Widget { parent_rect },
data_ { data },
length_ { length },
offset_ { offset },
digital_ { digital },
color_ { color }
{
//set_focusable(false);
}
void Waveform::set_offset(const uint32_t new_offset) {
if (new_offset != offset_) {
offset_ = new_offset;
set_dirty();
}
}
void Waveform::set_length(const uint32_t new_length) {
if (new_length != length_) {
length_ = new_length;
set_dirty();
}
}
void Waveform::paint(Painter& painter) {
uint32_t n, point_count;
Coord y, y_offset = screen_rect().location().y();
Coord prev_x = screen_rect().location().x(), prev_y;
float x, x_inc;
Dim h = screen_rect().size().height();
int8_t * data_start = data_ + offset_;
// Clear
painter.fill_rectangle(screen_rect(), Color::black());
x_inc = (float)screen_rect().size().width() / length_;
point_count = length_;
const float y_scale = (float)(h - 1) / 256; // TODO: Make variable
if (!point_count) return;
if (digital_) {
// Digital waveform: each value is an horizontal line
x = 0;
h--;
for (n = 0; n < point_count; n++) {
y = *(data_start++) ? h : 0;
if (n) {
if (y != prev_y)
painter.draw_vline( {(Coord)x, y_offset}, h, color_);
}
painter.draw_hline( {(Coord)x, y_offset + y}, ceil(x_inc), color_);
prev_y = y;
x += x_inc;
}
} else {
// Analog waveform: each value is a point's Y coordinate
x = prev_x + x_inc;
h = h / 2;
prev_y = y_offset + h - (*(data_start++) * y_scale);
for (n = 1; n < point_count; n++) {
y = y_offset + h - (*(data_start++) * y_scale);
display.draw_line( {prev_x, prev_y}, {(Coord)x, y}, color_);
prev_x = x;
prev_y = y;
x += x_inc;
}
}
}
/* VuMeter **************************************************************/
VuMeter::VuMeter(
Rect parent_rect,
uint32_t LEDs,
bool show_max
) : Widget { parent_rect },
LEDs_ { LEDs },
show_max_ { show_max }
{
//set_focusable(false);
LED_height = std::max(1UL, parent_rect.size().height() / LEDs);
split = 256 / LEDs;
}
void VuMeter::set_value(const uint32_t new_value) {
if ((new_value != value_) && (new_value < 256)) {
value_ = new_value;
set_dirty();
}
}
void VuMeter::set_mark(const uint32_t new_mark) {
if ((new_mark != mark) && (new_mark < 256)) {
mark = new_mark;
set_dirty();
}
}
void VuMeter::paint(Painter& painter) {
uint32_t bar;
Color color;
bool lit = false;
uint32_t bar_level;
Point pos = screen_rect().location();
Dim width = screen_rect().size().width() - 4;
Dim height = screen_rect().size().height();
Dim bottom = pos.y() + height;
Coord marks_x = pos.x() + width;
if (value_ != prev_value) {
bar_level = LEDs_ - ((value_ + 1) / split);
// Draw LEDs
for (bar = 0; bar < LEDs_; bar++) {
if (bar >= bar_level)
lit = true;
if (bar == 0)
color = lit ? Color::red() : Color::dark_red();
else if (bar == 1)
color = lit ? Color::orange() : Color::dark_orange();
else if ((bar == 2) || (bar == 3))
color = lit ? Color::yellow() : Color::dark_yellow();
else
color = lit ? Color::green() : Color::dark_green();
painter.fill_rectangle({ pos.x(), pos.y() + (Coord)(bar * (LED_height + 1)), width, (Coord)LED_height }, color);
}
prev_value = value_;
}
// Update max level
if (show_max_) {
if (value_ > max) {
max = value_;
hold_timer = 30; // 0.5s @ 60Hz
} else {
if (hold_timer) {
hold_timer--;
} else {
if (max) max--; // Let it drop
}
}
// Draw max level
if (max != prev_max) {
painter.draw_hline({ marks_x, bottom - (height * prev_max) / 256 }, 8, Color::black());
painter.draw_hline({ marks_x, bottom - (height * max) / 256 }, 8, Color::white());
if (prev_max == mark)
prev_mark = 0; // Force mark refresh
prev_max = max;
}
}
// Draw mark
if ((mark != prev_mark) && (mark)) {
painter.draw_hline({ marks_x, bottom - (height * prev_mark) / 256 }, 8, Color::black());
painter.draw_hline({ marks_x, bottom - (height * mark) / 256 }, 8, Color::grey());
prev_mark = mark;
}
}
} /* namespace ui */