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Move code out of ui_spectrum.hpp.

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This commit is contained in:
Jared Boone 2015-12-16 19:33:30 -08:00
parent f204a58d24
commit 7a4604e24e
2 changed files with 273 additions and 229 deletions
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254
firmware/application/ui_spectrum.cpp
View File

@ -21,6 +21,258 @@
#include "ui_spectrum.hpp"
namespace ui {
#include "spectrum_color_lut.hpp"
#include "portapack.hpp"
using namespace portapack;
#include "string_format.hpp"
#include <cmath>
#include <array>
namespace ui {
namespace spectrum {
/* FrequencyScale ********************************************************/
void FrequencyScale::on_show() {
clear();
}
void FrequencyScale::set_spectrum_sampling_rate(const uint32_t new_sampling_rate, const size_t new_spectrum_bins) {
if( (spectrum_sampling_rate != new_sampling_rate) ||
(spectrum_bins != new_spectrum_bins) ) {
spectrum_sampling_rate = new_sampling_rate;
spectrum_bins = new_spectrum_bins;
set_dirty();
}
}
void FrequencyScale::set_channel_filter(
const uint32_t pass_frequency,
const uint32_t stop_frequency
) {
if( (channel_filter_pass_frequency != pass_frequency) ||
(channel_filter_stop_frequency != stop_frequency) ) {
channel_filter_pass_frequency = pass_frequency;
channel_filter_stop_frequency = stop_frequency;
set_dirty();
}
}
void FrequencyScale::paint(Painter& painter) {
const auto r = screen_rect();
clear_background(painter, r);
if( !spectrum_sampling_rate || !spectrum_bins ) {
// Can't draw without non-zero scale.
return;
}
draw_filter_ranges(painter, r);
draw_frequency_ticks(painter, r);
}
void FrequencyScale::clear() {
spectrum_sampling_rate = 0;
spectrum_bins = 0;
set_dirty();
}
void FrequencyScale::clear_background(Painter& painter, const Rect r) {
painter.fill_rectangle(r, Color::black());
}
void FrequencyScale::draw_frequency_ticks(Painter& painter, const Rect r) {
const auto x_center = r.width() / 2;
const Rect tick {
static_cast<Coord>(r.left() + x_center), r.top(),
1, r.height()
};
painter.fill_rectangle(tick, Color::white());
constexpr uint32_t tick_count_max = 4;
float rough_tick_interval = float(spectrum_sampling_rate) / tick_count_max;
size_t magnitude = 1;
size_t magnitude_n = 0;
while(rough_tick_interval >= 10.0f) {
rough_tick_interval /= 10;
magnitude *= 10;
magnitude_n += 1;
}
const size_t tick_interval = std::ceil(rough_tick_interval);
size_t tick_offset = tick_interval;
while((tick_offset * magnitude) < spectrum_sampling_rate / 2) {
const Dim pixel_offset = tick_offset * magnitude * spectrum_bins / spectrum_sampling_rate;
const std::string zero_pad =
((magnitude_n % 3) == 0) ? "" :
((magnitude_n % 3) == 1) ? "0" : "00";
const std::string unit =
(magnitude_n >= 6) ? "M" :
(magnitude_n >= 3) ? "k" : "";
const std::string label = to_string_dec_uint(tick_offset) + zero_pad + unit;
const Coord offset_low = static_cast<Coord>(r.left() + x_center - pixel_offset);
const Rect tick_low { offset_low, r.top(), 1, r.height() };
painter.fill_rectangle(tick_low, Color::white());
painter.draw_string({ static_cast<Coord>(offset_low + 2), r.top() }, style(), label );
const Coord offset_high = static_cast<Coord>(r.left() + x_center + pixel_offset);
const Rect tick_high { offset_high, r.top(), 1, r.height() };
painter.fill_rectangle(tick_high, Color::white());
painter.draw_string({ static_cast<Coord>(offset_high + 2), r.top() }, style(), label );
tick_offset += tick_interval;
}
}
void FrequencyScale::draw_filter_ranges(Painter& painter, const Rect r) {
if( channel_filter_pass_frequency ) {
const auto x_center = r.width() / 2;
const auto pass_offset = channel_filter_pass_frequency * spectrum_bins / spectrum_sampling_rate;
const auto stop_offset = channel_filter_stop_frequency * spectrum_bins / spectrum_sampling_rate;
const auto pass_x_lo = x_center - pass_offset;
const auto pass_x_hi = x_center + pass_offset;
if( channel_filter_stop_frequency ) {
const auto stop_x_lo = x_center - stop_offset;
const auto stop_x_hi = x_center + stop_offset;
const Rect r_stop_lo {
static_cast<Coord>(r.left() + stop_x_lo), static_cast<Coord>(r.bottom() - filter_band_height),
static_cast<Dim>(pass_x_lo - stop_x_lo), filter_band_height
};
painter.fill_rectangle(
r_stop_lo,
Color::yellow()
);
const Rect r_stop_hi {
static_cast<Coord>(r.left() + pass_x_hi), static_cast<Coord>(r.bottom() - filter_band_height),
static_cast<Dim>(stop_x_hi - pass_x_hi), filter_band_height
};
painter.fill_rectangle(
r_stop_hi,
Color::yellow()
);
}
const Rect r_pass {
static_cast<Coord>(r.left() + pass_x_lo), static_cast<Coord>(r.bottom() - filter_band_height),
static_cast<Dim>(pass_x_hi - pass_x_lo), filter_band_height
};
painter.fill_rectangle(
r_pass,
Color::green()
);
}
}
/* WaterfallView *********************************************************/
void WaterfallView::on_show() {
clear();
const auto screen_r = screen_rect();
display.scroll_set_area(screen_r.top(), screen_r.bottom());
}
void WaterfallView::on_hide() {
/* TODO: Clear region to eliminate brief flash of content at un-shifted
* position?
*/
display.scroll_disable();
}
void WaterfallView::paint(Painter& painter) {
// Do nothing.
(void)painter;
}
void WaterfallView::on_channel_spectrum(
const ChannelSpectrum& spectrum
) {
/* TODO: static_assert that message.spectrum.db.size() >= pixel_row.size() */
std::array<Color, 240> pixel_row;
for(size_t i=0; i<120; i++) {
const auto pixel_color = spectrum_rgb3_lut[spectrum.db[256 - 120 + i]];
pixel_row[i] = pixel_color;
}
for(size_t i=120; i<240; i++) {
const auto pixel_color = spectrum_rgb3_lut[spectrum.db[i - 120]];
pixel_row[i] = pixel_color;
}
const auto draw_y = display.scroll(1);
display.draw_pixels(
{ { 0, draw_y }, { pixel_row.size(), 1 } },
pixel_row
);
}
void WaterfallView::clear() {
display.fill_rectangle(
screen_rect(),
Color::black()
);
}
/* WaterfallWidget *******************************************************/
WaterfallWidget::WaterfallWidget() {
add_children({
&waterfall_view,
&frequency_scale,
});
}
void WaterfallWidget::on_show() {
context().message_map().register_handler(Message::ID::ChannelSpectrum,
[this](const Message* const p) {
this->on_channel_spectrum(reinterpret_cast<const ChannelSpectrumMessage*>(p)->spectrum);
}
);
}
void WaterfallWidget::on_hide() {
context().message_map().unregister_handler(Message::ID::ChannelSpectrum);
}
void WaterfallWidget::set_parent_rect(const Rect new_parent_rect) {
constexpr Dim scale_height = 20;
View::set_parent_rect(new_parent_rect);
frequency_scale.set_parent_rect({ 0, 0, new_parent_rect.width(), scale_height });
waterfall_view.set_parent_rect({
0, scale_height,
new_parent_rect.width(),
static_cast<Dim>(new_parent_rect.height() - scale_height)
});
}
void WaterfallWidget::paint(Painter& painter) {
// TODO:
(void)painter;
}
void WaterfallWidget::on_channel_spectrum(const ChannelSpectrum& spectrum) {
waterfall_view.on_channel_spectrum(spectrum);
frequency_scale.set_spectrum_sampling_rate(spectrum.sampling_rate, spectrum.db_count);
frequency_scale.set_channel_filter(
spectrum.channel_filter_pass_frequency,
spectrum.channel_filter_stop_frequency
);
}
} /* namespace spectrum */
} /* namespace ui */

248
firmware/application/ui_spectrum.hpp
View File

@ -24,62 +24,23 @@
#include "ui.hpp"
#include "ui_widget.hpp"
#include "spectrum_color_lut.hpp"
#include "portapack.hpp"
using namespace portapack;
#include "message.hpp"
#include <cstdint>
#include <cmath>
#include <array>
#include "string_format.hpp"
#include <cstddef>
namespace ui {
namespace spectrum {
class FrequencyScale : public Widget {
public:
void on_show() override {
clear();
}
void on_show() override;
void set_spectrum_sampling_rate(const uint32_t new_sampling_rate, const size_t new_spectrum_bins) {
if( (spectrum_sampling_rate != new_sampling_rate) ||
(spectrum_bins != new_spectrum_bins) ) {
spectrum_sampling_rate = new_sampling_rate;
spectrum_bins = new_spectrum_bins;
set_dirty();
}
}
void set_spectrum_sampling_rate(const uint32_t new_sampling_rate, const size_t new_spectrum_bins);
void set_channel_filter(const uint32_t pass_frequency, const uint32_t stop_frequency);
void set_channel_filter(
const uint32_t pass_frequency,
const uint32_t stop_frequency
) {
if( (channel_filter_pass_frequency != pass_frequency) ||
(channel_filter_stop_frequency != stop_frequency) ) {
channel_filter_pass_frequency = pass_frequency;
channel_filter_stop_frequency = stop_frequency;
set_dirty();
}
}
void paint(Painter& painter) override {
const auto r = screen_rect();
clear_background(painter, r);
if( !spectrum_sampling_rate || !spectrum_bins ) {
// Can't draw without non-zero scale.
return;
}
draw_filter_ranges(painter, r);
draw_frequency_ticks(painter, r);
}
void paint(Painter& painter) override;
private:
static constexpr Dim filter_band_height = 4;
@ -89,211 +50,42 @@ private:
uint32_t channel_filter_pass_frequency { 0 };
uint32_t channel_filter_stop_frequency { 0 };
void clear() {
spectrum_sampling_rate = 0;
spectrum_bins = 0;
set_dirty();
}
void clear();
void clear_background(Painter& painter, const Rect r);
void clear_background(Painter& painter, const Rect r) {
painter.fill_rectangle(r, Color::black());
}
void draw_frequency_ticks(Painter& painter, const Rect r) {
const auto x_center = r.width() / 2;
const Rect tick {
static_cast<Coord>(r.left() + x_center), r.top(),
1, r.height()
};
painter.fill_rectangle(tick, Color::white());
constexpr uint32_t tick_count_max = 4;
float rough_tick_interval = float(spectrum_sampling_rate) / tick_count_max;
size_t magnitude = 1;
size_t magnitude_n = 0;
while(rough_tick_interval >= 10.0f) {
rough_tick_interval /= 10;
magnitude *= 10;
magnitude_n += 1;
}
const size_t tick_interval = std::ceil(rough_tick_interval);
size_t tick_offset = tick_interval;
while((tick_offset * magnitude) < spectrum_sampling_rate / 2) {
const Dim pixel_offset = tick_offset * magnitude * spectrum_bins / spectrum_sampling_rate;
const std::string zero_pad =
((magnitude_n % 3) == 0) ? "" :
((magnitude_n % 3) == 1) ? "0" : "00";
const std::string unit =
(magnitude_n >= 6) ? "M" :
(magnitude_n >= 3) ? "k" : "";
const std::string label = to_string_dec_uint(tick_offset) + zero_pad + unit;
const Coord offset_low = static_cast<Coord>(r.left() + x_center - pixel_offset);
const Rect tick_low { offset_low, r.top(), 1, r.height() };
painter.fill_rectangle(tick_low, Color::white());
painter.draw_string({ static_cast<Coord>(offset_low + 2), r.top() }, style(), label );
const Coord offset_high = static_cast<Coord>(r.left() + x_center + pixel_offset);
const Rect tick_high { offset_high, r.top(), 1, r.height() };
painter.fill_rectangle(tick_high, Color::white());
painter.draw_string({ static_cast<Coord>(offset_high + 2), r.top() }, style(), label );
tick_offset += tick_interval;
}
}
void draw_filter_ranges(Painter& painter, const Rect r) {
if( channel_filter_pass_frequency ) {
const auto x_center = r.width() / 2;
const auto pass_offset = channel_filter_pass_frequency * spectrum_bins / spectrum_sampling_rate;
const auto stop_offset = channel_filter_stop_frequency * spectrum_bins / spectrum_sampling_rate;
const auto pass_x_lo = x_center - pass_offset;
const auto pass_x_hi = x_center + pass_offset;
if( channel_filter_stop_frequency ) {
const auto stop_x_lo = x_center - stop_offset;
const auto stop_x_hi = x_center + stop_offset;
const Rect r_stop_lo {
static_cast<Coord>(r.left() + stop_x_lo), static_cast<Coord>(r.bottom() - filter_band_height),
static_cast<Dim>(pass_x_lo - stop_x_lo), filter_band_height
};
painter.fill_rectangle(
r_stop_lo,
Color::yellow()
);
const Rect r_stop_hi {
static_cast<Coord>(r.left() + pass_x_hi), static_cast<Coord>(r.bottom() - filter_band_height),
static_cast<Dim>(stop_x_hi - pass_x_hi), filter_band_height
};
painter.fill_rectangle(
r_stop_hi,
Color::yellow()
);
}
const Rect r_pass {
static_cast<Coord>(r.left() + pass_x_lo), static_cast<Coord>(r.bottom() - filter_band_height),
static_cast<Dim>(pass_x_hi - pass_x_lo), filter_band_height
};
painter.fill_rectangle(
r_pass,
Color::green()
);
}
}
void draw_frequency_ticks(Painter& painter, const Rect r);
void draw_filter_ranges(Painter& painter, const Rect r);
};
class WaterfallView : public Widget {
public:
void on_show() override {
clear();
void on_show() override;
void on_hide() override;
const auto screen_r = screen_rect();
display.scroll_set_area(screen_r.top(), screen_r.bottom());
}
void paint(Painter& painter) override;
void on_hide() override {
/* TODO: Clear region to eliminate brief flash of content at un-shifted
* position?
*/
display.scroll_disable();
}
void paint(Painter& painter) override {
// Do nothing.
(void)painter;
}
void on_channel_spectrum(
const ChannelSpectrum& spectrum
) {
/* TODO: static_assert that message.spectrum.db.size() >= pixel_row.size() */
std::array<Color, 240> pixel_row;
for(size_t i=0; i<120; i++) {
const auto pixel_color = spectrum_rgb3_lut[spectrum.db[256 - 120 + i]];
pixel_row[i] = pixel_color;
}
for(size_t i=120; i<240; i++) {
const auto pixel_color = spectrum_rgb3_lut[spectrum.db[i - 120]];
pixel_row[i] = pixel_color;
}
const auto draw_y = display.scroll(1);
display.draw_pixels(
{ { 0, draw_y }, { pixel_row.size(), 1 } },
pixel_row
);
}
void on_channel_spectrum(const ChannelSpectrum& spectrum);
private:
void clear() {
display.fill_rectangle(
screen_rect(),
Color::black()
);
}
void clear();
};
class WaterfallWidget : public View {
public:
WaterfallWidget() {
add_children({
&waterfall_view,
&frequency_scale,
});
}
WaterfallWidget();
void on_show() override {
context().message_map().register_handler(Message::ID::ChannelSpectrum,
[this](const Message* const p) {
this->on_channel_spectrum(reinterpret_cast<const ChannelSpectrumMessage*>(p)->spectrum);
}
);
}
void on_show() override;
void on_hide() override;
void on_hide() override {
context().message_map().unregister_handler(Message::ID::ChannelSpectrum);
}
void set_parent_rect(const Rect new_parent_rect) override;
void set_parent_rect(const Rect new_parent_rect) override {
constexpr Dim scale_height = 20;
View::set_parent_rect(new_parent_rect);
frequency_scale.set_parent_rect({ 0, 0, new_parent_rect.width(), scale_height });
waterfall_view.set_parent_rect({
0, scale_height,
new_parent_rect.width(),
static_cast<Dim>(new_parent_rect.height() - scale_height)
});
}
void paint(Painter& painter) override {
// TODO:
(void)painter;
}
void paint(Painter& painter) override;
private:
WaterfallView waterfall_view;
FrequencyScale frequency_scale;
void on_channel_spectrum(const ChannelSpectrum& spectrum) {
waterfall_view.on_channel_spectrum(spectrum);
frequency_scale.set_spectrum_sampling_rate(spectrum.sampling_rate, spectrum.db_count);
frequency_scale.set_channel_filter(
spectrum.channel_filter_pass_frequency,
spectrum.channel_filter_stop_frequency
);
}
void on_channel_spectrum(const ChannelSpectrum& spectrum);
};
} /* namespace spectrum */