Basic support for calculating audio gains based on the sound processor's gain curve.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/wx/gain_calculator_dialog.cc b/src/wx/gain_calculator_dialog.cc
new file mode 100644
index 000000000..9b6c7b004
--- /dev/null
+++ b/src/wx/gain_calculator_dialog.cc
@@ -0,0 +1,62 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+    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 of the License, 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; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <boost/lexical_cast.hpp>
+#include "gain_calculator_dialog.h"
+#include "wx_util.h"
+
+using namespace boost;
+
+GainCalculatorDialog::GainCalculatorDialog (wxWindow* parent)
+	: wxDialog (parent, wxID_ANY, _("Gain Calculator"))
+{
+	wxFlexGridSizer* table = new wxFlexGridSizer (2, 6, 6);
+	table->AddGrowableCol (1, 1);
+
+	add_label_to_sizer (table, this, "I want to play this back at fader");
+	_wanted = new wxTextCtrl (this, wxID_ANY, wxT (""), wxDefaultPosition, wxDefaultSize, 0, wxTextValidator (wxFILTER_NUMERIC));
+	table->Add (_wanted, 1, wxEXPAND);
+
+	add_label_to_sizer (table, this, "But I have to use fader");
+	_actual = new wxTextCtrl (this, wxID_ANY, wxT (""), wxDefaultPosition, wxDefaultSize, 0, wxTextValidator (wxFILTER_NUMERIC));
+	table->Add (_actual, 1, wxEXPAND);
+
+	wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
+	overall_sizer->Add (table, 1, wxEXPAND);
+
+	wxSizer* buttons = CreateSeparatedButtonSizer (wxOK);
+	if (buttons) {
+		overall_sizer->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
+	}
+	
+	SetSizer (overall_sizer);
+	overall_sizer->SetSizeHints (this);
+}
+
+float
+GainCalculatorDialog::wanted_fader () const
+{
+	return lexical_cast<float> (wx_to_std (_wanted->GetValue ()));
+}
+
+float
+GainCalculatorDialog::actual_fader () const
+{
+	return lexical_cast<float> (wx_to_std (_actual->GetValue ()));
+}