mirror of
https://github.com/cookiengineer/audacity
synced 2026-02-17 00:07:54 +01:00
Locate and position the current Audacity source code, and clear a variety of old junk out of the way into junk-branches
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src/effects/Repeat.cpp
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336
src/effects/Repeat.cpp
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/**********************************************************************
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Audacity: A Digital Audio Editor
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Repeat.cpp
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Dominic Mazzoni
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Vaughan Johnson
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*******************************************************************//**
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\class EffectRepeat
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\brief An Effect.
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*//****************************************************************//**
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\class RepeatDialog
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\brief Dialog used with EffectRepeat
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*//*******************************************************************/
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#include "../Audacity.h"
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#include "Repeat.h"
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#include "../ShuttleGui.h"
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#include "../WaveTrack.h"
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#include "../LabelTrack.h"
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#include "../widgets/TimeTextCtrl.h"
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#include "../Project.h"
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#include <wx/button.h>
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#include <wx/defs.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/stattext.h>
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#include <wx/textctrl.h>
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#include <wx/validate.h>
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#include <wx/valtext.h>
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#include <math.h>
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EffectRepeat::EffectRepeat()
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{
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repeatCount = 10;
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}
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wxString EffectRepeat::GetEffectDescription() {
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// Note: This is useful only after values have been set.
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return wxString::Format(_("Repeated %d times"), repeatCount);
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}
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bool EffectRepeat::PromptUser()
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{
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//
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// Figure out the maximum number of times the selection
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// could be repeated without overflowing any track
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//
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int maxCount = -1;
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TrackListOfKindIterator iter(Track::Wave, mTracks);
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WaveTrack *track = (WaveTrack *) iter.First();
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while (track) {
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sampleCount trackLen =
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(sampleCount)((track->GetEndTime() - track->GetStartTime()) *
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track->GetRate());
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sampleCount selectionLen = (sampleCount)((mT1 - mT0) * track->GetRate());
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int availSamples = 2147483647 - trackLen;
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int count = availSamples / selectionLen;
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if (maxCount == -1 || count < maxCount)
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maxCount = count;
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track = (WaveTrack *) iter.Next();
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}
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if (maxCount <= 1) {
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wxMessageBox(_("Tracks are too long to repeat the selection."),
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_("Repeat"), wxOK | wxCENTRE, mParent);
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return false;
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}
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RepeatDialog dlog(this, mParent);
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dlog.repeatCount = repeatCount;
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dlog.selectionTimeSecs = mT1 - mT0;
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dlog.maxCount = maxCount;
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dlog.TransferDataToWindow();
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dlog.CentreOnParent();
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dlog.ShowModal();
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if (dlog.GetReturnCode() == wxID_CANCEL)
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return false;
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repeatCount = dlog.repeatCount;
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if (repeatCount > maxCount)
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repeatCount = maxCount;
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if (repeatCount < 1)
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repeatCount = 1;
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return true;
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}
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bool EffectRepeat::TransferParameters( Shuttle & shuttle )
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{
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shuttle.TransferInt(wxT("Count"),repeatCount,1);
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return true;
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}
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bool EffectRepeat::Process()
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{
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// Set up mOutputTracks. This effect needs Track::All because it uses Paste that needs to have label tracks.
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this->CopyInputTracks(Track::All);
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int nTrack = 0;
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bool bGoodResult = true;
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double maxDestLen = 0.0; // used to change selection to generated bit
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// Is linking enabled?
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AudacityProject *p = GetActiveProject();
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bool isSticky = ( p && p->IsSticky());
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TrackListIterator iter(mOutputTracks);
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// we only do a "group change" in the first selected track of the group.
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// Paste call does changes to the group tracks
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bool first = true;
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for (Track *t = iter.First(); t && bGoodResult; t = iter.Next()) {
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if (t->GetKind() == Track::Label)
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{
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// We repeat labels if linking is enabled and a WaveTrack before this
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// has been repeated, or if the label track is selected
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if (t->GetSelected() || (isSticky && !first))
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{
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LabelTrack* track = (LabelTrack*)t;
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// If this track isn't selected, ShiftLabelsOnInsert() has
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// already been called
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if (t->GetSelected())
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track->ShiftLabelsOnInsert((mT1 - mT0) * repeatCount, mT1);
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if (!track->Repeat(mT0, mT1, repeatCount))
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{
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bGoodResult = false;
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break;
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}
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}
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first = true;
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}
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else if (t->GetKind() == Track::Wave && t->GetSelected())
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{
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WaveTrack* track = (WaveTrack*)t;
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sampleCount start = track->TimeToLongSamples(mT0);
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sampleCount end = track->TimeToLongSamples(mT1);
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sampleCount len = (sampleCount)(end - start);
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double tLen = track->LongSamplesToTime(len);
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double tc = mT0 + tLen;
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if (len <= 0)
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continue;
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Track *dest;
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track->Copy(mT0, mT1, &dest);
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for(int j=0; j<repeatCount; j++)
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{
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if (first) {
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if (!track->Paste(tc, dest, mOutputTracks) ||
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TrackProgress(nTrack, j / repeatCount)) // TrackProgress returns true on Cancel.
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{
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bGoodResult = false;
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break;
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}
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}
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else {
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if (!track->HandlePaste(tc, dest) ||
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TrackProgress(nTrack, j / repeatCount)) // TrackProgress returns true on Cancel.
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{
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bGoodResult = false;
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break;
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}
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}
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tc += tLen;
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}
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first = false;
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if (tc > maxDestLen)
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maxDestLen = tc;
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delete dest;
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nTrack++;
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}
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}
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if (bGoodResult)
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{
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// Select the new bits + original bit
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mT1 = maxDestLen;
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}
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this->ReplaceProcessedTracks(bGoodResult);
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return bGoodResult;
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}
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//----------------------------------------------------------------------------
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// RepeatDialog
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//----------------------------------------------------------------------------
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const static wxChar *numbers[] =
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{
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wxT("0"), wxT("1"), wxT("2"), wxT("3"), wxT("4"),
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wxT("5"), wxT("6"), wxT("7"), wxT("8"), wxT("9")
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};
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#define ID_REPEAT_TEXT 7000
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BEGIN_EVENT_TABLE(RepeatDialog, EffectDialog)
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EVT_TEXT(ID_REPEAT_TEXT, RepeatDialog::OnRepeatTextChange)
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EVT_BUTTON(ID_EFFECT_PREVIEW, RepeatDialog::OnPreview)
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END_EVENT_TABLE()
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RepeatDialog::RepeatDialog(EffectRepeat *effect,
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wxWindow * parent)
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: EffectDialog(parent, _("Repeat"), PROCESS_EFFECT),
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mEffect(effect)
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{
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Init();
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}
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void RepeatDialog::PopulateOrExchange(ShuttleGui & S)
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{
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wxTextValidator vld(wxFILTER_INCLUDE_CHAR_LIST);
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vld.SetIncludes(wxArrayString(10, numbers));
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S.StartHorizontalLay(wxCENTER, false);
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{
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S.AddTitle(_("by Dominic Mazzoni && Vaughan Johnson"));
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}
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S.EndHorizontalLay();
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S.StartHorizontalLay(wxCENTER, false);
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{
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// Add a little space
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}
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S.EndHorizontalLay();
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S.StartHorizontalLay(wxCENTER, false);
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{
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mRepeatCount = S.Id(ID_REPEAT_TEXT).AddTextBox(_("Number of times to repeat:"),
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wxT(""),
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12);
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mRepeatCount->SetValidator(vld);
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}
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S.EndHorizontalLay();
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S.StartHorizontalLay(wxCENTER, true);
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{
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mTotalTime = S.AddVariableText(_("New selection length: hh:mm:ss"));
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}
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S.EndHorizontalLay();
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}
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bool RepeatDialog::TransferDataToWindow()
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{
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mRepeatCount->ChangeValue(wxString::Format(wxT("%d"), repeatCount));
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DisplayNewTime();
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return true;
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}
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bool RepeatDialog::TransferDataFromWindow()
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{
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long l;
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mRepeatCount->GetValue().ToLong(&l);
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repeatCount = l;
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if (repeatCount < 1)
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repeatCount = 1;
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if (repeatCount > maxCount)
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repeatCount = maxCount;
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return true;
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}
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void RepeatDialog::DisplayNewTime()
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{
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wxString str;
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str = _("New selection length: ");
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TimeTextCtrl tt(this,
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wxID_ANY,
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wxT(""),
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selectionTimeSecs * (repeatCount + 1),
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mEffect->mProjectRate,
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wxPoint(10000, 10000), // create offscreen
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wxDefaultSize,
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true);
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tt.SetFormatString(tt.GetBuiltinFormat(_("hh:mm:ss")));
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str += tt.GetTimeString();
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mTotalTime->SetLabel(str);
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}
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void RepeatDialog::OnRepeatTextChange(wxCommandEvent & event)
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{
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TransferDataFromWindow();
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DisplayNewTime();
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}
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void RepeatDialog::OnPreview(wxCommandEvent &event)
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{
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TransferDataFromWindow();
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int oldRepeatCount = mEffect->repeatCount;
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mEffect->repeatCount = repeatCount;
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// LL: Preview doesn't work...Effect::Preview needs to allow new length
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mEffect->Preview();
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mEffect->repeatCount = oldRepeatCount;
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}
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// Indentation settings for Vim and Emacs and unique identifier for Arch, a
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// version control system. Please do not modify past this point.
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//
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// Local Variables:
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// c-basic-offset: 3
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// indent-tabs-mode: nil
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// End:
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//
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// vim: et sts=3 sw=3
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// arch-tag: 65c3dad7-00c2-48bf-a253-c973e626b9ac
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