Added bias-T status icon

Merged radio settings in one screen

firmware/application/ui/ui_spectrum.cpp

@@ -0,0 +1,271 @@
+/*
+ * Copyright (C) 2015 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_spectrum.hpp"
+
+#include "spectrum_color_lut.hpp"
+
+#include "portapack.hpp"
+using namespace portapack;
+
+#include "baseband_api.hpp"
+
+#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 int new_sampling_rate) {
+	if( (spectrum_sampling_rate != new_sampling_rate) ) {
+		spectrum_sampling_rate = new_sampling_rate;
+		set_dirty();
+	}
+}
+
+void FrequencyScale::set_channel_filter(
+	const int pass_frequency,
+	const int 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 ) {
+		// 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;
+	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 { r.left() + x_center, r.top(), 1, r.height() };
+	painter.fill_rectangle(tick, Color::white());
+
+	constexpr int tick_count_max = 4;
+	float rough_tick_interval = float(spectrum_sampling_rate) / tick_count_max;
+	int magnitude = 1;
+	int magnitude_n = 0;
+	while(rough_tick_interval >= 10.0f) {
+		rough_tick_interval /= 10;
+		magnitude *= 10;
+		magnitude_n += 1;
+	}
+	const int tick_interval = std::ceil(rough_tick_interval);
+
+	auto 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 auto label_width = style().font.size_of(label).width();
+		
+		const Coord offset_low = 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({ offset_low + 2, r.top() }, style(), label );
+
+		const Coord offset_high = 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({ offset_high - 2 - label_width, 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 {
+				r.left() + stop_x_lo, r.bottom() - filter_band_height,
+				pass_x_lo - stop_x_lo, filter_band_height
+			};
+			painter.fill_rectangle(
+				r_stop_lo,
+				Color::yellow()
+			);
+
+			const Rect r_stop_hi {
+				r.left() + pass_x_hi, r.bottom() - filter_band_height,
+				stop_x_hi - pass_x_hi, filter_band_height
+			};
+			painter.fill_rectangle(
+				r_stop_hi,
+				Color::yellow()
+			);
+		}
+
+		const Rect r_pass {
+			r.left() + pass_x_lo, r.bottom() - filter_band_height,
+			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() {
+	baseband::spectrum_streaming_start();
+}
+
+void WaterfallWidget::on_hide() {
+	baseband::spectrum_streaming_stop();
+}
+
+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(),
+		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);
+	frequency_scale.set_channel_filter(
+		spectrum.channel_filter_pass_frequency,
+		spectrum.channel_filter_stop_frequency
+	);
+}
+
+} /* namespace spectrum */
+} /* namespace ui */