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https://github.com/cookiengineer/audacity
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Frequency Selection toolbar from Paul Licameli.
Linux/Mac will need new files adding to project, SpectralSelectionBar.cpp, NumericTextCtrl.cpp.
This commit is contained in:
james.k.crook@gmail.com
308
src/toolbars/SpectralSelectionBar.cpp
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308
src/toolbars/SpectralSelectionBar.cpp
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/**********************************************************************
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Audacity: A Digital Audio Editor
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SpectralSelectionBar.cpp
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Copyright 2014 Dominic Mazzoni
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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*******************************************************************//**
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\class SpectralSelectionBar
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\brief (not quite a Toolbar) at foot of screen for setting and viewing the
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frequency selection range.
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*//****************************************************************//**
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\class SpectralSelectionBarListener
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\brief A class used to forward events to do
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with changes in the SpectralSelectionBar.
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*//*******************************************************************/
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#include "../Audacity.h"
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#include <algorithm>
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// For compilers that support precompilation, includes "wx/wx.h".
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#include <wx/wxprec.h>
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#ifndef WX_PRECOMP
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#include <wx/button.h>
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#include <wx/checkbox.h>
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#include <wx/combobox.h>
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#include <wx/intl.h>
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#include <wx/radiobut.h>
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#include <wx/settings.h>
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#include <wx/sizer.h>
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#include <wx/valtext.h>
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#endif
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#include <wx/statline.h>
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#include "SpectralSelectionBarListener.h"
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#include "SpectralSelectionBar.h"
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#include "../AudacityApp.h"
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#include "../SelectedRegion.h"
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#include "../widgets/NumericTextCtrl.h"
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#ifdef EXPERIMENTAL_SPECTRAL_EDITING
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IMPLEMENT_CLASS(SpectralSelectionBar, ToolBar);
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enum {
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SpectralSelectionBarFirstID = 2750,
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OnCenterID,
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OnWidthID
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};
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BEGIN_EVENT_TABLE(SpectralSelectionBar, ToolBar)
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EVT_SIZE(SpectralSelectionBar::OnSize)
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EVT_TEXT(OnCenterID, SpectralSelectionBar::OnCenter)
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EVT_TEXT(OnWidthID, SpectralSelectionBar::OnWidth)
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EVT_COMMAND(wxID_ANY, EVT_FREQUENCYTEXTCTRL_UPDATED, SpectralSelectionBar::OnUpdate)
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EVT_COMMAND(wxID_ANY, EVT_LOGFREQUENCYTEXTCTRL_UPDATED, SpectralSelectionBar::OnUpdate)
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END_EVENT_TABLE()
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SpectralSelectionBar::SpectralSelectionBar()
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: ToolBar(SpectralSelectionBarID, _("SpectralSelection"), wxT("SpectralSelection")),
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mListener(NULL), mCenter(0.0), mWidth(0.0),
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mCenterCtrl(NULL), mWidthCtrl(NULL)
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{
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}
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SpectralSelectionBar::~SpectralSelectionBar()
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{
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}
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void SpectralSelectionBar::Create(wxWindow * parent)
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{
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ToolBar::Create(parent);
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}
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void SpectralSelectionBar::Populate()
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{
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// This will be inherited by all children:
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SetFont(wxFont(9, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL));
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wxFlexGridSizer *mainSizer;
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wxBoxSizer *hSizer;
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/* we don't actually need a control yet, but we want to use its methods
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* to do some look-ups, so we'll have to create one. We can't make the
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* look-ups static because they depend on translations which are done at
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* runtime */
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wxString frequencyFormatName = mListener
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? mListener->SSBL_GetFrequencySelectionFormatName()
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: wxString(wxEmptyString);
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wxString logFrequencyFormatName = mListener
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? mListener->SSBL_GetLogFrequencySelectionFormatName()
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: wxString(wxEmptyString);
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mainSizer = new wxFlexGridSizer(2, 1, 1);
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Add(mainSizer, 0, wxALIGN_CENTER_VERTICAL);
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//
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// Top row (labels)
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//
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mainSizer->Add(new wxStaticText(this, -1, _("Center:"),
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wxDefaultPosition, wxDefaultSize),
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0, wxALIGN_CENTER_VERTICAL | wxRIGHT, 5);
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mainSizer->Add(new wxStaticText(this, -1, _("Bandwidth:")),
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0, wxALIGN_CENTER_VERTICAL | wxRIGHT, 0);
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//
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// Bottom row (controls)
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//
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mCenterCtrl = new NumericTextCtrl(
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NumericConverter::FREQUENCY, this, OnCenterID, frequencyFormatName, 0.0);
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mCenterCtrl->SetName(_("Center Frequency:"));
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mCenterCtrl->EnableMenu();
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mainSizer->Add(mCenterCtrl, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, 5);
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mWidthCtrl = new NumericTextCtrl(
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NumericConverter::LOG_FREQUENCY, this, OnWidthID, logFrequencyFormatName, 0.0);
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mWidthCtrl->SetName(wxString(_("Bandwidth:")));
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mWidthCtrl->EnableMenu();
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mainSizer->Add(mWidthCtrl, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, 0);
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mainSizer->Layout();
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Layout();
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SetMinSize(GetSizer()->GetMinSize());
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}
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void SpectralSelectionBar::UpdatePrefs()
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{
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{
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wxCommandEvent e(EVT_FREQUENCYTEXTCTRL_UPDATED);
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e.SetInt(mCenterCtrl->GetFormatIndex());
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OnUpdate(e);
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}
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{
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wxCommandEvent e(EVT_LOGFREQUENCYTEXTCTRL_UPDATED);
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e.SetInt(mWidthCtrl->GetFormatIndex());
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OnUpdate(e);
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}
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// Set label to pull in language change
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SetLabel(_("SpectralSelection"));
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// Give base class a chance
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ToolBar::UpdatePrefs();
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}
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void SpectralSelectionBar::SetListener(SpectralSelectionBarListener *l)
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{
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mListener = l;
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SetFrequencySelectionFormatName(mListener->SSBL_GetFrequencySelectionFormatName());
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SetLogFrequencySelectionFormatName(mListener->SSBL_GetLogFrequencySelectionFormatName());
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};
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void SpectralSelectionBar::OnSize(wxSizeEvent &evt)
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{
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Refresh(true);
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evt.Skip();
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}
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void SpectralSelectionBar::ModifySpectralSelection(bool done)
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{
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const double nyq = mListener->SSBL_GetRate() / 2.0;
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mCenter = mCenterCtrl->GetValue();
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mWidth = mWidthCtrl->GetValue();
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double bottom, top;
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if (mCenter < 0 && mWidth < 0)
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bottom = top = SelectedRegion::UndefinedFrequency;
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else {
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if (mCenter < 0) {
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mWidth = log(std::min(nyq, exp(mWidth)));
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// Choose arbitrary center for the width
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mCenter = sqrt(nyq);
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}
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else if (mWidth < 0) {
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mCenter = std::max(1.0, std::min(nyq, mCenter));
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// Choose arbitrary width for the center
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const double ratio = std::min(mCenter, nyq / mCenter);
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mWidth = log(ratio * ratio);
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}
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else {
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mCenter = std::max(1.0, std::min(nyq, mCenter));
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double ratio = std::min(mCenter, nyq / mCenter);
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mWidth = std::min(2 * log(ratio), mWidth);
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}
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const double ratio = exp(mWidth / 2);
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bottom = mCenter / ratio, top = mCenter * ratio;
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}
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// Notify project and track panel, which may change
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// the values again, and call back to us in SetFrequencies()
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mListener->SSBL_ModifySpectralSelection(bottom, top, done);
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}
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void SpectralSelectionBar::OnCenter(wxCommandEvent & event)
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{
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ModifySpectralSelection(event.GetInt() != 0);
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}
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void SpectralSelectionBar::OnWidth(wxCommandEvent & event)
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{
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ModifySpectralSelection(event.GetInt() != 0);
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}
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void SpectralSelectionBar::OnUpdate(wxCommandEvent &evt)
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{
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int index = evt.GetInt();
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wxWindow *w = FindFocus();
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bool centerFocus = (w == mCenterCtrl);
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bool widthFocus = (w == mWidthCtrl);
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evt.Skip(false);
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// Save formats before recreating the controls so they resize properly
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wxEventType type = evt.GetEventType();
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int frequencyFormatIndex = mCenterCtrl->GetFormatIndex();
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int widthFormatIndex = mWidthCtrl->GetFormatIndex();
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if (type == EVT_FREQUENCYTEXTCTRL_UPDATED) {
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frequencyFormatIndex = index;
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mListener->SSBL_SetFrequencySelectionFormatName
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(mCenterCtrl->GetBuiltinName(index));
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}
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else if (type == EVT_LOGFREQUENCYTEXTCTRL_UPDATED) {
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widthFormatIndex = index;
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mListener->SSBL_SetLogFrequencySelectionFormatName
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(mWidthCtrl->GetBuiltinName(index));
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}
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// ToolBar::ReCreateButtons() will get rid of our sizers and controls
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// so reset pointers first.
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mCenterCtrl = mWidthCtrl = NULL;
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ToolBar::ReCreateButtons();
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ValuesToControls();
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mCenterCtrl->SetFormatName
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(mCenterCtrl->GetBuiltinName(frequencyFormatIndex));
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mWidthCtrl->SetFormatName
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(mWidthCtrl->GetBuiltinName(widthFormatIndex));
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if (centerFocus) {
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mCenterCtrl->SetFocus();
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}
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else if (widthFocus) {
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mWidthCtrl->SetFocus();
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}
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Updated();
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}
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void SpectralSelectionBar::ValuesToControls()
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{
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mCenterCtrl->SetValue(mCenter);
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mWidthCtrl->SetValue(mWidth);
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}
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void SpectralSelectionBar::SetFrequencies(double bottom, double top)
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{
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if (bottom > 0 && top >= bottom)
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mWidth = log(top / bottom), mCenter = sqrt(top * bottom);
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else
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mWidth = mCenter = -1.0;
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ValuesToControls();
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}
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void SpectralSelectionBar::SetFrequencySelectionFormatName(const wxString & formatName)
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{
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mCenterCtrl->SetFormatName(formatName);
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wxCommandEvent e(EVT_FREQUENCYTEXTCTRL_UPDATED);
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e.SetInt(mCenterCtrl->GetFormatIndex());
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OnUpdate(e);
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}
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void SpectralSelectionBar::SetLogFrequencySelectionFormatName(const wxString & formatName)
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{
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mWidthCtrl->SetFormatName(formatName);
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wxCommandEvent e(EVT_LOGFREQUENCYTEXTCTRL_UPDATED);
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e.SetInt(mWidthCtrl->GetFormatIndex());
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OnUpdate(e);
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}
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#endif // #ifdef EXPERIMENTAL_SPECTRAL_EDITING
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