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/*
Copyright (C) 2014 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 <cmath>
#include <wx/spinctrl.h>
#include "audio_gain_dialog.h"
#include "wx_util.h"
AudioGainDialog::AudioGainDialog (wxWindow* parent, int c, int d, float v)
: wxDialog (parent, wxID_ANY, _("Channel gain"))
{
wxFlexGridSizer* table = new wxFlexGridSizer (3, DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
table->AddGrowableCol (1, 1);
add_label_to_sizer (table, this, wxString::Format (_("Gain for content channel %d in DCP channel %d"), c + 1, d + 1), false);
_gain = new wxSpinCtrlDouble (this);
table->Add (_gain);
add_label_to_sizer (table, this, _("dB"), false);
wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
overall_sizer->Add (table, 1, wxEXPAND | wxALL, DCPOMATIC_DIALOG_BORDER);
wxSizer* buttons = CreateSeparatedButtonSizer (wxOK | wxCANCEL);
if (buttons) {
overall_sizer->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
}
SetSizer (overall_sizer);
overall_sizer->Layout ();
overall_sizer->SetSizeHints (this);
_gain->SetRange (-144, 0);
_gain->SetDigits (1);
_gain->SetIncrement (0.1);
_gain->SetValue (20 * log10 (v));
}
float
AudioGainDialog::value () const
{
if (_gain->GetValue() <= -144) {
return 0;
}
return pow (10, _gain->GetValue () / 20);
}
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