From bea1be71fd06888ac03fcddb47f6d497f8e07aab Mon Sep 17 00:00:00 2001
From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
Date: Mon, 29 Aug 2016 20:23:27 +0200
Subject: [PATCH] Hook up the EQ controls and labels.

---
 audio_mixer.h  |  6 ++++++
 mainwindow.cpp | 37 +++++++++++++++++++++++++++++++++++++
 mainwindow.h   |  2 ++
 3 files changed, 45 insertions(+)

diff --git a/audio_mixer.h b/audio_mixer.h
index c332671..1e25f52 100644
--- a/audio_mixer.h
+++ b/audio_mixer.h
@@ -124,6 +124,12 @@ public:
 		eq_level_db[bus_index][band] = db_gain;
 	}
 
+	float get_eq(unsigned bus_index, EQBand band) const
+	{
+		assert(band >= 0 && band < NUM_EQ_BANDS);
+		return eq_level_db[bus_index][band];
+	}
+
 	float get_limiter_threshold_dbfs() const
 	{
 		return limiter_threshold_dbfs;
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 2ef1da4..ea742f7 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -369,6 +369,9 @@ void MainWindow::setup_audio_expanded_view()
 		ui_audio_expanded_view->bus_desc_label->setFullText(
 			QString::fromStdString(mapping.buses[bus_index].name));
 		audio_expanded_views[bus_index] = ui_audio_expanded_view;
+		update_eq_label(bus_index, EQ_BAND_TREBLE, global_mixer->get_audio_mixer()->get_eq(bus_index, EQ_BAND_TREBLE));
+		update_eq_label(bus_index, EQ_BAND_MID, global_mixer->get_audio_mixer()->get_eq(bus_index, EQ_BAND_MID));
+		update_eq_label(bus_index, EQ_BAND_BASS, global_mixer->get_audio_mixer()->get_eq(bus_index, EQ_BAND_BASS));
 		// TODO: Set the fader position.
 		ui->buses->addWidget(channel);
 
@@ -377,6 +380,13 @@ void MainWindow::setup_audio_expanded_view()
 			global_mixer->get_audio_mixer()->set_locut_enabled(bus_index, state == Qt::Checked);
 		});
 
+		connect(ui_audio_expanded_view->treble_knob, &QDial::valueChanged,
+		        bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_TREBLE, _1));
+		connect(ui_audio_expanded_view->mid_knob, &QDial::valueChanged,
+		        bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_MID, _1));
+		connect(ui_audio_expanded_view->bass_knob, &QDial::valueChanged,
+		        bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_BASS, _1));
+
 		ui_audio_expanded_view->gainstaging_knob->setValue(global_mixer->get_audio_mixer()->get_gain_staging_db(bus_index));
 		ui_audio_expanded_view->gainstaging_auto_checkbox->setChecked(global_mixer->get_audio_mixer()->get_gain_staging_auto(bus_index));
 		ui_audio_expanded_view->compressor_enabled->setChecked(global_mixer->get_audio_mixer()->get_compressor_enabled(bus_index));
@@ -530,6 +540,33 @@ void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_le
 	});
 }
 
+void MainWindow::eq_knob_changed(unsigned bus_index, EQBand band, int value)
+{
+	float gain_db = value * 0.1f;
+	global_mixer->get_audio_mixer()->set_eq(bus_index, band, gain_db);
+
+	update_eq_label(bus_index, band, gain_db);
+}
+
+void MainWindow::update_eq_label(unsigned bus_index, EQBand band, float gain_db)
+{
+	Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
+	string db_string = format_db(gain_db, DB_WITH_SIGN);
+	switch (band) {
+	case EQ_BAND_TREBLE:
+		view->treble_label->setText(QString::fromStdString("Treble: " + db_string));
+		break;
+	case EQ_BAND_MID:
+		view->mid_label->setText(QString::fromStdString("Mid: " + db_string));
+		break;
+	case EQ_BAND_BASS:
+		view->bass_label->setText(QString::fromStdString("Bass: " + db_string));
+		break;
+	default:
+		assert(false);
+	}
+}
+
 void MainWindow::limiter_threshold_knob_changed(int value)
 {
 	float threshold_dbfs = value * 0.1f;
diff --git a/mainwindow.h b/mainwindow.h
index 73a6235..4c9d0b8 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -50,6 +50,7 @@ public slots:
 	void gain_staging_knob_changed(unsigned bus_index, int value);
 	void final_makeup_gain_knob_changed(int value);
 	void cutoff_knob_changed(int value);
+	void eq_knob_changed(unsigned bus_index, EQBand band, int value);
 	void limiter_threshold_knob_changed(int value);
 	void compressor_threshold_knob_changed(unsigned bus_index, int value);
 	void mini_fader_changed(int bus, double db_volume);
@@ -61,6 +62,7 @@ private:
 	void setup_audio_expanded_view();
 	bool eventFilter(QObject *watched, QEvent *event) override;
 	void set_white_balance(int channel_number, int x, int y);
+	void update_eq_label(unsigned bus_index, EQBand band, float gain_db);
 
 	// Called from DiskSpaceEstimator.
 	void report_disk_space(off_t free_bytes, double estimated_seconds_left);
-- 
2.39.2