Extract RecordView from AnalogAudioApp, CaptureApp.

firmware/application/Makefile

@@ -167,6 +167,7 @@ CPPSRC = main.cpp \
          ui_sd_card_debug.cpp \
          ui_console.cpp \
          ui_receiver.cpp \
+         ui_record_view.cpp \
          ui_spectrum.cpp \
          recent_entries.cpp \
          receiver_model.cpp \

firmware/application/analog_audio_app.cpp

@@ -86,8 +86,7 @@ AnalogAudioView::AnalogAudioView(
 		&field_vga,
 		&options_modulation,
 		&field_volume,
-		&button_record,
-		&text_record_filename,
+		&record_view,
 		&waterfall,
 	} });
 
@@ -140,10 +139,6 @@ AnalogAudioView::AnalogAudioView(
 		this->on_headphone_volume_changed(v);
 	};
 
-	button_record.on_select = [this](ImageButton&) {
-		this->on_record();
-	};
-	
 	audio::output::start();
 
 	update_modulation(static_cast<ReceiverModel::Mode>(modulation));
@@ -289,7 +284,7 @@ void AnalogAudioView::on_headphone_volume_changed(int32_t v) {
 
 void AnalogAudioView::update_modulation(const ReceiverModel::Mode modulation) {
 	audio::output::mute();
-	record_stop();
+	record_view.stop();
 
 	const auto is_wideband_spectrum_mode = (modulation == ReceiverModel::Mode::SpectrumAnalysis);
 	receiver_model.set_baseband_configuration({
@@ -300,57 +295,20 @@ void AnalogAudioView::update_modulation(const ReceiverModel::Mode modulation) {
 	receiver_model.set_baseband_bandwidth(is_wideband_spectrum_mode ? 12000000 : 1750000);
 	receiver_model.enable();
 
-	if( !is_wideband_spectrum_mode ) {
-		audio::output::unmute();
-	}
-}
-
-bool AnalogAudioView::is_recording() const {
-	return (bool)capture_thread;
-}
-
-void AnalogAudioView::on_record() {
-	if( is_recording() ) {
-		record_stop();
-	} else {
-		record_start();
-	}
-}
-
-void AnalogAudioView::record_start() {
-	const auto filename_stem = next_filename_stem_matching_pattern("AUD_????");
-	text_record_filename.set(filename_stem);
-	if( filename_stem.empty() ) {
-		return;
-	}
-
-	write_metadata_file(filename_stem + ".TXT");
-
-	capture_thread = std::make_unique<CaptureThread>(filename_stem + ".S16", 12, 2);
-	button_record.set_bitmap(&bitmap_stop);
-}
-
-void AnalogAudioView::record_stop() {
-	capture_thread.reset();
-	button_record.set_bitmap(&bitmap_record);
-}
-
-void AnalogAudioView::write_metadata_file(const std::string& filename) {
 	// TODO: This doesn't belong here! There's a better way.
-	const auto modulation = static_cast<ReceiverModel::Mode>(receiver_model.modulation());
 	size_t sampling_rate = 0;
 	switch(modulation) {
 	case ReceiverModel::Mode::AMAudio:				sampling_rate = 12000; break;
 	case ReceiverModel::Mode::NarrowbandFMAudio:	sampling_rate = 24000; break;
 	case ReceiverModel::Mode::WidebandFMAudio:		sampling_rate = 48000; break;
 	default:
-		return;
+		break;
 	}
+	record_view.set_sampling_rate(sampling_rate);
 
-	File file;
-	file.open_for_writing(filename);
-	file.puts("sample_rate=" + to_string_dec_uint(sampling_rate) + "\n");
-	file.puts("center_frequency=" + to_string_dec_uint(receiver_model.tuning_frequency()) + "\n");
+	if( !is_wideband_spectrum_mode ) {
+		audio::output::unmute();
+	}
 }
 
 } /* namespace ui */

firmware/application/analog_audio_app.hpp

@@ -26,8 +26,7 @@
 
 #include "ui_receiver.hpp"
 #include "ui_spectrum.hpp"
-
-#include "capture_thread.hpp"
+#include "ui_record_view.hpp"
 
 #include "ui_font_fixed_8x16.hpp"
 
@@ -142,22 +141,13 @@ private:
 
 	std::unique_ptr<Widget> options_widget;
 
-	ImageButton button_record {
-		{ 0 * 8, 2 * 16, 2 * 8, 1 * 16 },
-		&bitmap_record,
-		Color::red(),
-		Color::black()
-	};
-
-	Text text_record_filename {
-		{ 3 * 8, 2 * 16, 8 * 8, 16 },
-		"",
+	RecordView record_view {
+		{ 0 * 8, 2 * 16, 30 * 8, 1 * 16 },
+		"AUD_????", ".S16", 12, 2,
 	};
 
 	spectrum::WaterfallWidget waterfall;
 
-	std::unique_ptr<CaptureThread> capture_thread;
-
 	void on_tuning_frequency_changed(rf::Frequency f);
 	void on_baseband_bandwidth_changed(uint32_t bandwidth_hz);
 	void on_rf_amp_changed(bool v);
@@ -176,12 +166,6 @@ private:
 	void set_options_widget(std::unique_ptr<Widget> new_widget);
 
 	void update_modulation(const ReceiverModel::Mode modulation);
-
-	void on_record();
-	bool is_recording() const;
-	void record_start();
-	void record_stop();
-	void write_metadata_file(const std::string& filename);
 };
 
 } /* namespace ui */

firmware/application/capture_app.cpp

@@ -24,25 +24,16 @@
 #include "portapack.hpp"
 using namespace portapack;
 
-#include "file.hpp"
-#include "time.hpp"
-
-#include "utility.hpp"
-
-#include "string_format.hpp"
-
 namespace ui {
 
 CaptureAppView::CaptureAppView(NavigationView& nav) {
 	add_children({ {
-		&button_record,
 		&rssi,
 		&channel,
 		&field_frequency,
 		&field_lna,
 		&field_vga,
-		&text_record_filename,
-		&text_record_dropped,
+		&record_view,
 		&waterfall,
 	} });
 
@@ -70,10 +61,6 @@ CaptureAppView::CaptureAppView(NavigationView& nav) {
 		this->on_vga_changed(v_db);
 	};
 
-	button_record.on_select = [this](ImageButton&) {
-		this->on_record();
-	};
-	
 	receiver_model.set_baseband_configuration({
 		.mode = toUType(ReceiverModel::Mode::Capture),
 		.sampling_rate = sampling_rate,
@@ -82,13 +69,10 @@ CaptureAppView::CaptureAppView(NavigationView& nav) {
 	receiver_model.set_baseband_bandwidth(baseband_bandwidth);
 	receiver_model.enable();
 
-	signal_token_tick_second = time::signal_tick_second += [this]() {
-		this->on_tick_second();
-	};
+	record_view.set_sampling_rate(sampling_rate / 8);
 }
 
 CaptureAppView::~CaptureAppView() {
-	time::signal_tick_second -= signal_token_tick_second;
 	receiver_model.disable();
 }
 
@@ -107,53 +91,7 @@ void CaptureAppView::set_parent_rect(const Rect new_parent_rect) {
 }
 
 void CaptureAppView::focus() {
-	button_record.focus();
-}
-
-bool CaptureAppView::is_recording() const {
-	return (bool)capture_thread;
-}
-
-void CaptureAppView::on_record() {
-	if( is_recording() ) {
-		record_stop();
-	} else {
-		record_start();
-	}
-}
-
-void CaptureAppView::record_start() {
-	const auto filename_stem = next_filename_stem_matching_pattern("BBD_????");
-	text_record_filename.set(filename_stem);
-	text_record_dropped.set("");
-	if( filename_stem.empty() ) {
-		return;
-	}
-
-	write_metadata_file(filename_stem + ".TXT");
-
-	capture_thread = std::make_unique<CaptureThread>(filename_stem + ".C16", 14, 1);
-	button_record.set_bitmap(&bitmap_stop);
-}
-
-void CaptureAppView::record_stop() {
-	capture_thread.reset();
-	button_record.set_bitmap(&bitmap_record);
-}
-
-void CaptureAppView::write_metadata_file(const std::string& filename) {
-	File file;
-	file.open_for_writing(filename);
-	file.puts("sample_rate=" + to_string_dec_uint(sampling_rate) + "\n");
-	file.puts("center_frequency=" + to_string_dec_uint(receiver_model.tuning_frequency()) + "\n");
-}
-
-void CaptureAppView::on_tick_second() {
-	if( capture_thread ) {
-		const auto dropped_percent = std::min(99U, capture_thread->state().dropped_percent());
-		const auto s = to_string_dec_uint(dropped_percent, 2, ' ') + "\%";
-		text_record_dropped.set(s);
-	}
+	record_view.focus();
 }
 
 void CaptureAppView::on_tuning_frequency_changed(rf::Frequency f) {

firmware/application/capture_app.hpp

@@ -25,13 +25,9 @@
 #include "ui_widget.hpp"
 #include "ui_navigation.hpp"
 #include "ui_receiver.hpp"
+#include "ui_record_view.hpp"
 #include "ui_spectrum.hpp"
 
-#include "bitmap.hpp"
-
-#include "capture_thread.hpp"
-#include "signal.hpp"
-
 #include <string>
 #include <memory>
 
@@ -56,39 +52,10 @@ private:
 	static constexpr uint32_t sampling_rate = 4000000;
 	static constexpr uint32_t baseband_bandwidth = 2500000;
 
-	std::unique_ptr<CaptureThread> capture_thread;
-
-	SignalToken signal_token_tick_second;
-
-	void on_record();
-	bool is_recording() const;
-	void record_start();
-	void record_stop();
-	void write_metadata_file(const std::string& filename);
-
-	void on_tick_second();
-
 	void on_tuning_frequency_changed(rf::Frequency f);
 	void on_lna_changed(int32_t v_db);
 	void on_vga_changed(int32_t v_db);
 
-	ImageButton button_record {
-		{ 0 * 8, 2 * 16, 2 * 8, 1 * 16 },
-		&bitmap_record,
-		Color::red(),
-		Color::black()
-	};
-
-	Text text_record_filename {
-		{ 3 * 8, 2 * 16, 8 * 8, 16 },
-		"",
-	};
-
-	Text text_record_dropped {
-		{ 16 * 8, 2 * 16, 3 * 8, 16 },
-		"",
-	};
-
 	RSSI rssi {
 		{ 21 * 8, 0, 6 * 8, 4 },
 	};
@@ -109,6 +76,11 @@ private:
 		{ 18 * 8, 0 * 16 }
 	};
 
+	RecordView record_view {
+		{ 0 * 8, 2 * 16, 30 * 8, 1 * 16 },
+		"BBD_????", ".C16", 14, 1,
+	};
+
 	spectrum::WaterfallWidget waterfall;
 };
 

firmware/application/ui_record_view.cpp

@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2016 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_record_view.hpp"
+
+#include "portapack.hpp"
+using namespace portapack;
+
+#include "file.hpp"
+#include "time.hpp"
+
+#include "string_format.hpp"
+#include "utility.hpp"
+
+namespace ui {
+
+RecordView::RecordView(
+	const Rect parent_rect,
+	std::string filename_stem_pattern,
+	std::string filename_extension,
+	const size_t buffer_size_k,
+	const size_t buffer_count_k
+) : View { parent_rect },
+	filename_stem_pattern { filename_stem_pattern },
+	filename_extension { filename_extension },
+	buffer_size_k { buffer_size_k },
+	buffer_count_k { buffer_count_k }
+{
+	add_children({ {
+		&button_record,
+		&text_record_filename,
+		&text_record_dropped,
+	} });
+
+	button_record.on_select = [this](ImageButton&) {
+		this->toggle();
+	};
+
+	signal_token_tick_second = time::signal_tick_second += [this]() {
+		this->on_tick_second();
+	};
+}
+
+RecordView::~RecordView() {
+	time::signal_tick_second -= signal_token_tick_second;
+}
+
+void RecordView::focus() {
+	button_record.focus();
+}
+
+bool RecordView::is_active() const {
+	return (bool)capture_thread;
+}
+
+void RecordView::toggle() {
+	if( is_active() ) {
+		stop();
+	} else {
+		start();
+	}
+}
+
+void RecordView::start() {
+	stop();
+
+	if( sampling_rate == 0 ) {
+		return;
+	}
+
+	const auto filename_stem = next_filename_stem_matching_pattern(filename_stem_pattern);
+	text_record_filename.set(filename_stem);
+	text_record_dropped.set("");
+	if( filename_stem.empty() ) {
+		return;
+	}
+
+	write_metadata_file(filename_stem + ".TXT");
+
+	capture_thread = std::make_unique<CaptureThread>(filename_stem + filename_extension, buffer_size_k, buffer_count_k);
+	button_record.set_bitmap(&bitmap_stop);
+}
+
+void RecordView::stop() {
+	if( is_active() ) {
+		capture_thread.reset();
+		button_record.set_bitmap(&bitmap_record);
+	}
+}
+
+void RecordView::write_metadata_file(const std::string& filename) {
+	File file;
+	file.open_for_writing(filename);
+	file.puts("sample_rate=" + to_string_dec_uint(sampling_rate) + "\n");
+	file.puts("center_frequency=" + to_string_dec_uint(receiver_model.tuning_frequency()) + "\n");
+}
+
+void RecordView::on_tick_second() {
+	if( is_active() ) {
+		const auto dropped_percent = std::min(99U, capture_thread->state().dropped_percent());
+		const auto s = to_string_dec_uint(dropped_percent, 2, ' ') + "\%";
+		text_record_dropped.set(s);
+	}
+}
+
+} /* namespace ui */

firmware/application/ui_record_view.hpp

@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef __UI_RECORD_VIEW_H__
+#define __UI_RECORD_VIEW_H__
+
+#include "ui_widget.hpp"
+
+#include "capture_thread.hpp"
+#include "signal.hpp"
+
+#include "bitmap.hpp"
+
+#include <memory>
+
+namespace ui {
+
+class RecordView : public View {
+public:
+	RecordView(
+		const Rect parent_rect,
+		std::string filename_stem_pattern,
+		std::string filename_extension,
+		const size_t buffer_size_k,
+		const size_t buffer_count_k
+	);
+	~RecordView();
+
+	void focus() override;
+
+	void set_sampling_rate(const size_t new_sampling_rate) {
+		if( new_sampling_rate != sampling_rate ) {
+			stop();
+			sampling_rate = new_sampling_rate;
+		}
+	}
+
+	void start();
+	void stop();
+
+	bool is_active() const;
+
+private:
+	void toggle();
+	void write_metadata_file(const std::string& filename);
+
+	void on_tick_second();
+
+	const std::string filename_stem_pattern;
+	const std::string filename_extension;
+	const size_t buffer_size_k;
+	const size_t buffer_count_k;
+	size_t sampling_rate { 0 };
+	SignalToken signal_token_tick_second;
+
+	ImageButton button_record {
+		{ 0 * 8, 0 * 16, 2 * 8, 1 * 16 },
+		&bitmap_record,
+		Color::red(),
+		Color::black()
+	};
+
+	Text text_record_filename {
+		{ 3 * 8, 0 * 16, 8 * 8, 16 },
+		"",
+	};
+
+	Text text_record_dropped {
+		{ 16 * 8, 0 * 16, 3 * 8, 16 },
+		"",
+	};
+
+	std::unique_ptr<CaptureThread> capture_thread;
+};
+
+} /* namespace ui */
+
+#endif/*__UI_RECORD_VIEW_H__*/