628 lines
19 KiB
C++
628 lines
19 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Contrast.cpp
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\class ContrastDialog
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\brief Dialog used for Contrast menu item
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*//*******************************************************************/
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#include "../Audacity.h"
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#include "../AudacityApp.h"
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#include "Contrast.h"
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#include "../Envelope.h"
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#include "../FFT.h"
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#include "../WaveTrack.h"
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#include "../Prefs.h"
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#include "../Project.h"
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#include "../FileNames.h"
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#include "../widgets/LinkingHtmlWindow.h"
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#include "../widgets/HelpSystem.h"
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#include "../widgets/NumericTextCtrl.h"
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#include "FileDialog.h"
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#include <math.h>
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#include <limits>
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#if defined(__WXMSW__) && !defined(__CYGWIN__)
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#include <float.h>
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#define finite(x) _finite(x)
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#endif
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// all these headers may not be needed
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#include <wx/file.h>
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#include <wx/ffile.h>
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#include <wx/bitmap.h>
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#include <wx/brush.h>
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#include <wx/button.h>
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#include <wx/datetime.h>
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#include <wx/dcmemory.h>
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#include <wx/file.h>
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#include <wx/image.h>
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#include <wx/intl.h>
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#include <wx/msgdlg.h>
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#include <wx/sizer.h>
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#include <wx/statbox.h>
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#include <wx/stattext.h>
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#include <wx/textctrl.h>
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#include <wx/valtext.h>
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#include "../PlatformCompatibility.h"
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static ContrastDialog *gContrastDialog = NULL;
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void InitContrastDialog(wxWindow * parent)
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{
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if(!gContrastDialog)
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{
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wxPoint where;
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where.x = 150;
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where.y = 150;
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gContrastDialog = new ContrastDialog(parent, -1, _("Contrast Analysis (WCAG 2 compliance)"), where);
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gContrastDialog->bFGset = false;
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gContrastDialog->bBGset = false;
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}
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// Zero dialog boxes. Do we need to do this here?
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if( !gContrastDialog->bFGset )
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{
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gContrastDialog->mForegroundStartT->SetValue(0.0);
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gContrastDialog->mForegroundEndT->SetValue(0.0);
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}
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if( !gContrastDialog->bBGset )
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{
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gContrastDialog->mBackgroundStartT->SetValue(0.0);
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gContrastDialog->mBackgroundEndT->SetValue(0.0);
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}
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gContrastDialog->CentreOnParent();
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gContrastDialog->Show();
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}
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void CloseContrastDialog()
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{
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if (gContrastDialog) {
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delete gContrastDialog;
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gContrastDialog = NULL;
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}
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}
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float ContrastDialog::GetDB()
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{
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// FIXME: what if more than one track?
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float rms = float(0.0);
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AudacityProject *p = GetActiveProject();
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TrackListOfKindIterator iter(Track::Wave, p->GetTracks());
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Track *t = iter.First();
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if(mT0 > mT1)
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{
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wxMessageDialog m(NULL, _("Start time after end time!\nPlease enter reasonable times."), _("Error"), wxOK);
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m.ShowModal();
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return 1234.0; // 'magic number', but the whole +ve dB range will 'almost' never occur
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}
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if(mT0 < t->GetStartTime())
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mT0 = t->GetStartTime();
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if(mT1 > t->GetEndTime())
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mT1 = t->GetEndTime();
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if(mT0 > mT1)
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{
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wxMessageDialog m(NULL, _("Times are not reasonable!\nPlease enter reasonable times."), _("Error"), wxOK);
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m.ShowModal();
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return 1234.0;
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}
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if(mT0 == mT1)
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{
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wxMessageDialog m(NULL, _("Nothing to measure.\nPlease select a section of a track."), _("Error"), wxOK);
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m.ShowModal();
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return 1234.0;
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}
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bool mSelected = false;
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while(t) {
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if( ((WaveTrack *)t)->GetSelected() )
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{
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if( mSelected == true ) // already measured one track
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{
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wxMessageDialog m(NULL, _("You can only measure one track at a time."), _("Error"), wxOK);
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m.ShowModal();
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return 1234.0;
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}
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else
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{
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((WaveTrack *)t)->GetRMS(&rms, mT0, mT1);
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mSelected = true;
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}
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}
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t = iter.Next();
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}
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if( mSelected )
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{
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if( rms < 1.0E-30 )
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return -60.0;
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return 20.0*log10(rms);
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}
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else
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{
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wxMessageDialog m(NULL, _("Please select something to be measured."), _("Error"), wxOK);
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m.ShowModal();
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return 1234.0;
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}
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}
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double ContrastDialog::GetStartTime()
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{
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return(mT0);
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}
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void ContrastDialog::SetStartTime(double t)
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{
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mT0 = t;
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}
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double ContrastDialog::GetEndTime()
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{
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return(mT1);
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}
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void ContrastDialog::SetEndTime(double t)
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{
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mT1 = t;
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}
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// WDR: class implementations
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//----------------------------------------------------------------------------
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// ContrastDialog
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//----------------------------------------------------------------------------
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// WDR: event table for ContrastDialog
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enum {
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ID_BUTTON_GETFOREGROUND = 10001,
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ID_BUTTON_GETBACKGROUND,
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ID_BUTTON_USECURRENTF,
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ID_BUTTON_USECURRENTB,
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ID_BUTTON_GETURL,
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ID_BUTTON_EXPORT,
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ID_BUTTON_RESET,
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ID_BUTTON_CLOSE,
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ID_FOREGROUNDSTART_T,
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ID_FOREGROUNDEND_T,
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ID_BACKGROUNDSTART_T,
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ID_BACKGROUNDEND_T,
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ID_FOREGROUNDDB_TEXT,
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ID_BACKGROUNDDB_TEXT,
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ID_RESULTS_TEXT,
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ID_RESULTSDB_TEXT
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};
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BEGIN_EVENT_TABLE(ContrastDialog,wxDialog)
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EVT_BUTTON(ID_BUTTON_GETFOREGROUND, ContrastDialog::OnGetForegroundDB)
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EVT_BUTTON(ID_BUTTON_GETBACKGROUND, ContrastDialog::OnGetBackgroundDB)
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EVT_BUTTON(ID_BUTTON_USECURRENTF, ContrastDialog::OnUseSelectionF)
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EVT_BUTTON(ID_BUTTON_USECURRENTB, ContrastDialog::OnUseSelectionB)
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EVT_BUTTON(ID_BUTTON_GETURL, ContrastDialog::OnGetURL)
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EVT_BUTTON(ID_BUTTON_EXPORT, ContrastDialog::OnExport)
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EVT_BUTTON(ID_BUTTON_RESET, ContrastDialog::OnReset)
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EVT_BUTTON(ID_BUTTON_CLOSE, ContrastDialog::OnClose)
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END_EVENT_TABLE()
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/* i18n-hint: WCAG2 is the 'Web Content Accessibility Guidelines (WCAG) 2.0', see http://www.w3.org/TR/WCAG20/ */
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ContrastDialog::ContrastDialog(wxWindow * parent, wxWindowID id,
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const wxString & title,
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const wxPoint & pos):
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wxDialog(parent, id, title, pos, wxDefaultSize,
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wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER | wxMAXIMIZE_BOX )
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{
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foregrounddB = 1234.0;
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backgrounddB = 1234.0;
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// NULL out the control members until the controls are created.
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mForegroundStartT = NULL;
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mForegroundEndT = NULL;
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mBackgroundStartT = NULL;
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mBackgroundEndT = NULL;
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wxTextValidator vld(wxFILTER_NUMERIC);
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wxString number;
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AudacityProject *p = GetActiveProject();
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mProjectRate = p->GetRate();
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ShuttleGui S(this, eIsCreating);
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S.SetBorder(5);
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S.StartHorizontalLay(wxCENTER, false);
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{
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S.AddTitle(_("Contrast Analyzer, for measuring RMS volume differences between two selections of audio."));
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}
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S.EndHorizontalLay();
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S.StartStatic( _("Parameters") );
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{
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S.StartMultiColumn(5, wxEXPAND);
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{
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// Headings
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S.AddFixedText(wxT("")); // spacer
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S.AddFixedText(_("Start"));
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S.AddFixedText(_("End"));
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S.AddFixedText(wxT("")); // spacer
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S.AddFixedText(_("Volume "));
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//Foreground
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S.AddFixedText(_("&Foreground:"), false);
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if (mForegroundStartT == NULL)
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{
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mForegroundStartT = new
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NumericTextCtrl(NumericConverter::TIME, this,
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ID_FOREGROUNDSTART_T,
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_("hh:mm:ss + hundredths"),
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0.0,
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mProjectRate,
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wxDefaultPosition,
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wxDefaultSize,
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true);
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mForegroundStartT->SetName(_("Foreground start time"));
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mForegroundStartT->EnableMenu(false);
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}
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S.AddWindow(mForegroundStartT);
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if (mForegroundEndT == NULL)
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{
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mForegroundEndT = new
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NumericTextCtrl(NumericConverter::TIME, this,
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ID_FOREGROUNDEND_T,
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_("hh:mm:ss + hundredths"),
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0.0,
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mProjectRate,
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wxDefaultPosition,
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wxDefaultSize,
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true);
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mForegroundEndT->SetName(_("Foreground end time"));
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mForegroundEndT->EnableMenu(false);
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}
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S.AddWindow(mForegroundEndT);
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m_pButton_UseCurrentF = S.Id(ID_BUTTON_USECURRENTF).AddButton(_("&Measure selection"));
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mForegroundRMSText=S.Id(ID_FOREGROUNDDB_TEXT).AddTextBox(wxT(""), wxT(""), 12);
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mForegroundRMSText->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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//Background
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S.AddFixedText(_("&Background:"));
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if (mBackgroundStartT == NULL)
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{
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mBackgroundStartT = new
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NumericTextCtrl(NumericConverter::TIME, this,
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ID_BACKGROUNDSTART_T,
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_("hh:mm:ss + hundredths"),
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0.0,
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mProjectRate,
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wxDefaultPosition,
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wxDefaultSize,
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true);
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mBackgroundStartT->SetName(_("Background start time"));
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mBackgroundStartT->EnableMenu(false);
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}
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S.AddWindow(mBackgroundStartT);
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if (mBackgroundEndT == NULL)
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{
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mBackgroundEndT = new
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NumericTextCtrl(NumericConverter::TIME, this,
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ID_BACKGROUNDEND_T,
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_("hh:mm:ss + hundredths"),
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0.0,
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mProjectRate,
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wxDefaultPosition,
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wxDefaultSize,
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true);
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mBackgroundEndT->SetName(_("Background end time"));
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mBackgroundEndT->EnableMenu(false);
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}
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S.AddWindow(mBackgroundEndT);
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m_pButton_UseCurrentB = S.Id(ID_BUTTON_USECURRENTB).AddButton(_("Mea&sure selection"));
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mBackgroundRMSText = S.Id(ID_BACKGROUNDDB_TEXT).AddTextBox(wxT(""), wxT(""), 12);
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mBackgroundRMSText->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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}
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S.EndMultiColumn();
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}
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S.EndStatic();
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//Result
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S.StartStatic( _("Result") );
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{
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S.StartMultiColumn(3, wxCENTER);
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{
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S.AddFixedText(_("Co&ntrast Result:"));
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mPassFailText = S.Id(ID_RESULTS_TEXT).AddTextBox(wxT(""), wxT(""), 40);
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mPassFailText->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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m_pButton_Reset = S.Id(ID_BUTTON_RESET).AddButton(_("R&eset"));
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S.AddFixedText(_("&Difference:"));
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mDiffText = S.Id(ID_RESULTSDB_TEXT).AddTextBox(wxT(""), wxT(""), 30);
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mDiffText->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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m_pButton_Export = S.Id(ID_BUTTON_EXPORT).AddButton(_("E&xport..."));
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}
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S.EndMultiColumn();
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}
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S.EndStatic();
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S.StartMultiColumn(3, wxEXPAND);
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{
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S.SetStretchyCol(1);
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m_pButton_GetURL = S.Id(ID_BUTTON_GETURL).AddButton(_("&Help"));
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S.AddFixedText(wxT(" ")); // spacer
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m_pButton_Close = S.Id(ID_BUTTON_CLOSE).AddButton(_("&Close"));
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}
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S.EndMultiColumn();
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Layout();
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Fit();
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SetMinSize(GetSize());
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Center();
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}
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ContrastDialog::~ContrastDialog()
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{
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mForegroundRMSText->Disconnect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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mBackgroundRMSText->Disconnect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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mPassFailText->Disconnect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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mDiffText->Disconnect(wxEVT_KEY_DOWN, wxKeyEventHandler(ContrastDialog::OnChar));
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}
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void ContrastDialog::OnGetForegroundDB( wxCommandEvent & WXUNUSED(event))
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{
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SetStartTime(mForegroundStartT->GetValue());
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SetEndTime(mForegroundEndT->GetValue());
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foregrounddB = GetDB();
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m_pButton_UseCurrentF->SetFocus();
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results();
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}
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void ContrastDialog::OnGetBackgroundDB( wxCommandEvent & WXUNUSED(event))
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{
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SetStartTime(mBackgroundStartT->GetValue());
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SetEndTime(mBackgroundEndT->GetValue());
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backgrounddB = GetDB();
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m_pButton_UseCurrentB->SetFocus();
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results();
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}
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void ContrastDialog::OnGetURL(wxCommandEvent & WXUNUSED(event))
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{
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// Original help page now a dead link.
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// http://www.eramp.com/WCAG_2_audio_contrast_tool_help.htm
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HelpSystem::ShowHelpDialog(this, wxT("Contrast"));
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}
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void ContrastDialog::OnClose(wxCommandEvent & WXUNUSED(event))
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{
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Show(false);
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}
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void ContrastDialog::OnUseSelectionF(wxCommandEvent & event)
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{
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AudacityProject *p = GetActiveProject();
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TrackListIterator iter(p->GetTracks());
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Track *t = iter.First();
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while (t) {
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if (t->GetSelected() && t->GetKind() == Track::Wave) {
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mForegroundStartT->SetValue(p->mViewInfo.selectedRegion.t0());
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mForegroundEndT->SetValue(p->mViewInfo.selectedRegion.t1());
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break;
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}
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t = iter.Next();
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}
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bFGset = true;
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OnGetForegroundDB(event);
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}
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void ContrastDialog::OnUseSelectionB(wxCommandEvent & event)
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{
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AudacityProject *p = GetActiveProject();
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TrackListIterator iter(p->GetTracks());
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Track *t = iter.First();
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while (t) {
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if (t->GetSelected() && t->GetKind() == Track::Wave) {
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mBackgroundStartT->SetValue(p->mViewInfo.selectedRegion.t0());
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mBackgroundEndT->SetValue(p->mViewInfo.selectedRegion.t1());
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break;
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}
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t = iter.Next();
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}
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bBGset = true;
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OnGetBackgroundDB(event);
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}
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void ContrastDialog::results()
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{
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if(foregrounddB == 1234.0) // magic number, but OK for now
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{
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mForegroundRMSText->SetName(_("No foreground measured"));
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mForegroundRMSText->ChangeValue(wxString::Format(wxT(" ")));
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}
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else
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{
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mForegroundRMSText->SetName(_("Measured foreground level"));
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if( -foregrounddB != std::numeric_limits<float>::infinity() )
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mForegroundRMSText->ChangeValue(wxString::Format(_("%.1f dB"), foregrounddB)); // i18n-hint: short form of 'decibels'
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else
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mForegroundRMSText->ChangeValue(wxString::Format(_("zero")));
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}
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if(backgrounddB == 1234.0)
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{
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mBackgroundRMSText->SetName(_("No background measured"));
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mBackgroundRMSText->ChangeValue(wxString::Format(wxT(" ")));
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}
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else
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{
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mBackgroundRMSText->SetName(_("Measured background level"));
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if( backgrounddB * backgrounddB != std::numeric_limits<float>::infinity() )
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mBackgroundRMSText->ChangeValue(wxString::Format(_("%.1f dB"), backgrounddB));
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else
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mBackgroundRMSText->ChangeValue(wxString::Format(_("zero")));
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}
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if( (foregrounddB != 1234.0) && (backgrounddB != 1234.0) )
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{
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if(foregrounddB - backgrounddB > 20)
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mPassFailText->ChangeValue(_("WCAG2 Pass"));
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else
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mPassFailText->ChangeValue(_("WCAG2 Fail"));
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/* i18n-hint: i.e. difference in loudness at the moment. */
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mDiffText->SetName(_("Current difference"));
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float diffdB = foregrounddB - backgrounddB;
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if( diffdB != diffdB ) // test for NaN, reliant on IEEE implementation
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mDiffText->ChangeValue(wxString::Format(_("indeterminate")));
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else
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if( fabs(diffdB) != std::numeric_limits<float>::infinity() )
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mDiffText->ChangeValue(wxString::Format(_("%.1f dB Average RMS"), diffdB));
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else
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mDiffText->ChangeValue(wxString::Format(_("infinite dB difference")));
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}
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else
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{
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mPassFailText->SetName(wxT(""));
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mPassFailText->ChangeValue(_("Please enter valid times."));
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mDiffText->ChangeValue(wxT(""));
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}
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}
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void ContrastDialog::OnExport(wxCommandEvent & WXUNUSED(event))
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{
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AudacityProject * project = GetActiveProject();
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wxString fName = wxT("contrast.txt");
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fName = FileSelector(_("Export Contrast Result As:"),
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wxEmptyString, fName, wxT("txt"), wxT("*.txt"), wxFD_SAVE | wxRESIZE_BORDER, this);
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if (fName == wxT(""))
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return;
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wxTextFile f(fName);
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#ifdef __WXMAC__
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wxFile *temp = new wxFile();
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temp->Create(fName);
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delete temp;
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#else
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f.Create();
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#endif
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f.Open();
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if (!f.IsOpened()) {
|
|
wxMessageBox(_("Couldn't write to file: ") + fName);
|
|
return;
|
|
}
|
|
|
|
f.AddLine(wxT("==================================="));
|
|
f.AddLine(_("WCAG 2.0 Success Criteria 1.4.7 Contrast Results"));
|
|
f.AddLine(wxT(""));
|
|
f.AddLine(wxString::Format(_("Filename = %s."), project->GetFileName().c_str() ));
|
|
f.AddLine(wxT(""));
|
|
f.AddLine(_("Foreground"));
|
|
float t = (float)mForegroundStartT->GetValue();
|
|
int h = (int)(t/3600); // there must be a standard function for this!
|
|
int m = (int)((t - h*3600)/60);
|
|
float s = t - h*3600.0 - m*60.0;
|
|
f.AddLine(wxString::Format(_("Time started = %2d hour(s), %2d minute(s), %.2f seconds."), h, m, s ));
|
|
t = (float)mForegroundEndT->GetValue();
|
|
h = (int)(t/3600);
|
|
m = (int)((t - h*3600)/60);
|
|
s = t - h*3600.0 - m*60.0;
|
|
f.AddLine(wxString::Format(_("Time ended = %2d hour(s), %2d minute(s), %.2f seconds."), h, m, s ));
|
|
if(foregrounddB != 1234.0) // see other instances of '1234.0' in here
|
|
if( fabs(foregrounddB) != std::numeric_limits<float>::infinity() )
|
|
f.AddLine(wxString::Format(_("Average RMS = %.1f dB."), foregrounddB ));
|
|
else
|
|
f.AddLine(wxString::Format(_("Average RMS = zero.") ));
|
|
else
|
|
f.AddLine(wxString::Format(_("Average RMS = dB.")));
|
|
f.AddLine(wxT(""));
|
|
f.AddLine(_("Background"));
|
|
t = (float)mBackgroundStartT->GetValue();
|
|
h = (int)(t/3600);
|
|
m = (int)((t - h*3600)/60);
|
|
s = t - h*3600.0 - m*60.0;
|
|
f.AddLine(wxString::Format(_("Time started = %2d hour(s), %2d minute(s), %.2f seconds."), h, m, s ));
|
|
t = (float)mBackgroundEndT->GetValue();
|
|
h = (int)(t/3600);
|
|
m = (int)((t - h*3600)/60);
|
|
s = t - h*3600.0 - m*60.0;
|
|
f.AddLine(wxString::Format(_("Time ended = %2d hour(s), %2d minute(s), %.2f seconds."), h, m, s ));
|
|
if(backgrounddB != 1234.0)
|
|
if( fabs(backgrounddB) != std::numeric_limits<float>::infinity() )
|
|
f.AddLine(wxString::Format(_("Average RMS = %.1f dB."), backgrounddB ));
|
|
else
|
|
f.AddLine(wxString::Format(_("Average RMS = zero.") ));
|
|
else
|
|
f.AddLine(wxString::Format(_("Average RMS = dB.")));
|
|
f.AddLine(wxT(""));
|
|
f.AddLine(_("Results"));
|
|
float diffdB = foregrounddB - backgrounddB;
|
|
if( diffdB != diffdB ) //test for NaN, reliant on IEEE implementation
|
|
f.AddLine(wxString::Format(_("Difference is indeterminate.") ));
|
|
else
|
|
if( fabs(diffdB) != std::numeric_limits<float>::infinity() )
|
|
f.AddLine(wxString::Format(_("Difference = %.1f Average RMS dB."), diffdB ));
|
|
else
|
|
f.AddLine(wxString::Format(_("Difference = infinite Average RMS dB.")));
|
|
if( diffdB > 20. )
|
|
f.AddLine(_("Success Criteria 1.4.7 of WCAG 2.0: Pass"));
|
|
else
|
|
f.AddLine(_("Success Criteria 1.4.7 of WCAG 2.0: Fail"));
|
|
|
|
f.AddLine(wxT(""));
|
|
f.AddLine(_("Data gathered"));
|
|
wxString sNow;
|
|
wxDateTime now = wxDateTime::Now();
|
|
int year = now.GetYear();
|
|
wxDateTime::Month month = now.GetMonth();
|
|
wxString monthName = now.GetMonthName(month);
|
|
int dom = now.GetDay();
|
|
int hour = now.GetHour();
|
|
int minute = now.GetMinute();
|
|
int second = now.GetSecond();
|
|
sNow = wxString::Format(wxT("%d %s %02d %02dh %02dm %02ds"),
|
|
dom, monthName.c_str(), year, hour, minute, second);
|
|
f.AddLine(sNow);
|
|
|
|
f.AddLine(wxT("==================================="));
|
|
f.AddLine(wxT(""));
|
|
|
|
#ifdef __WXMAC__
|
|
f.Write(wxTextFileType_Mac);
|
|
#else
|
|
f.Write();
|
|
#endif
|
|
f.Close();
|
|
}
|
|
|
|
void ContrastDialog::OnReset(wxCommandEvent & event)
|
|
{
|
|
bFGset = false;
|
|
bBGset = false;
|
|
|
|
mForegroundStartT->SetValue(0.0);
|
|
mForegroundEndT->SetValue(0.0);
|
|
mBackgroundStartT->SetValue(0.0);
|
|
mBackgroundEndT->SetValue(0.0);
|
|
|
|
wxCommandEvent dummyEvt;
|
|
OnGetForegroundDB(event);
|
|
OnGetBackgroundDB(event);
|
|
results();
|
|
}
|
|
|
|
void ContrastDialog::OnChar(wxKeyEvent & event)
|
|
{
|
|
if (event.GetKeyCode() == WXK_TAB) {
|
|
event.Skip();
|
|
return;
|
|
}
|
|
|
|
event.Skip(false);
|
|
return;
|
|
}
|