This file is indexed.

/usr/include/tse3/PhraseEdit.h is in libtse3-dev 0.3.1-4.3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
/*
 * @(#)PhraseEdit.h 3.00 19 May 1999
 *
 * Copyright (c) 2000 Pete Goodliffe (pete@cthree.org)
 *
 * This file is part of TSE3 - the Trax Sequencer Engine version 3.00.
 *
 * This library is modifiable/redistributable under the terms of the GNU
 * General Public License.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; see the file COPYING. If not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 */

#ifndef TSE3_PHRASEEDIT_H
#define TSE3_PHRASEEDIT_H

#include "tse3/listen/PhraseEdit.h"

#include "tse3/Notifier.h"
#include "tse3/MidiData.h"

#include <string>
#include <cstddef>

namespace TSE3
{
    class Phrase;
    class PhraseList;

    /**
     * This class provides an editable @ref MidiData area. It is the mechanism
     * used to generate @ref Phrase objects.
     *
     * The PhraseEdit object can be used as an area into which @ref MidiEvent
     * data is recorded in real time (it is used by the @ref Transport class),
     * or as the basic data structure for a GUI @ref Phrase editor, for example.
     *
     * For this latter mode of usage, the PhraseEdit class provides a number
     * of callbacks (see @ref PhraseEditListener) that can be used to keep the
     * display updated.
     *
     * @sect Tidiness
     *
     * The state of the PhraseEdit area can be one of:
     *
     * @li Tidy:   Sustain pedal usage has been converted into sustained notes
     *             and MidiCommand_NoteOffs are coalescened into their
     *             appropriate @ref MidiEvent. The data in the PhraseEdit
     *             object is suitable for being played through the
     *             @ref Playable interface.
     * @li Untidy: MidiCommand_NoteOffs may not be matched into MidiEvents,
     *             sustain pedal events may not have been cleaned up, events
     *             could be out of chronological order. Basically, the data is
     *             likely to me a big mess and all hell could break loose if
     *             you try to play this @ref MidiData in it's current state.
     *             (All hell breaking loose is likely by be 'hanging notes'.)
     *
     * It is up to the user to know if a PhraseEdit area may be untidy and to
     * deal with it appropriately (i.e. make sure it is never played). After
     * having tidied the data (by calling @ref tidy()) the only way to make
     * the data untidy is to write a @ref MidiEvent directly using
     * @ref operator[]().
     *
     * When the PhraseEdit is tidy, the safest way of modifying a
     * @ref MidiEvent is to remove it and the reinsert the modified
     * @ref MidiEvent.
     *
     * @sect Managing selected @ref MidiEvent contents
     *
     * The PhraseEdit object can manage the selection status of it's @ref
     * MidiEvent contents. This will be useful for GUI editors that use the
     * PhraseEdit as the underlying data buffer.
     *
     * Selections are denoted by the @p selected bit in the @ref MidiCommand
     * data type. You can use @ref select() and @ref deselect() to alter
     * selection states.
     *
     * For convenience the PhraseEdit class remembers the index of the first
     * and last selected @ref MidiEvent.
     *
     * Working with selections only really makes sense when the data area
     * is tidy. You can still use the selection facilities with an untidy
     * data area, however.
     *
     * @sect Modification status
     *
     * As an extra utility for GUI uses, the PhraseEdit class manages a
     * 'modification' status. It allows the user to find out whether the
     * data has been modified since the last @ref reset(), and also fires
     * an event off the first time it is modified.
     *
     * Changing the selection does not affect the modified status.
     *
     * @sect Command classes
     *
     * Use the following command classes to manipute this object in a undo/redo
     * environment.
     *
     *     @li @ref TSE3::Cmd::Phrase_Create
     *
     * @short   An editable Phrase data type
     * @author  Pete Goodliffe
     * @version 3.00
     * @see     MidiData
     * @see     Phrase
     */
    class PhraseEdit : public MidiData,
                       public Notifier<PhraseEditListener>
    {
        public:

            /**
             * Create a PhraseEdit with the given number of events
             * space reserved.
             *
             * It is not really necessary to specify this size unless you know
             * at least how many events will be inserted and reserving them
             * will result in a worthwhile performance increase.
             *
             * The PhaseEdit is initially created in an unmodified state (see
             * @ref modified()).
             *
             * @param noEvents Ignorable PhraseEdit size
             */
            explicit PhraseEdit(int noEvents = defaultSize);

            virtual ~PhraseEdit();

            /******************************************************************
             * Accessing the MidiEvents
             *****************************************************************/

            /**
             * Resets the PhraseEdit area to be a copy of the given MidiData.
             * If the @p source pointer is zero, the PhraseEdit area will be
             * blank.
             *
             * The modified status value will be cleared (see @ref modified())
             * which may result in the modified event being raised.
             *
             * @param source @ref MidiData to copy
             */
            void reset(const MidiData *source = 0);

            /**
             * Tidies the @ref MidiData (usually used after recording has
             * stopped) This does a number of things, including adding any
             * missing MidiCommand_NoteOffs and the conversion of sustain pedal
             * usage into elongated notes. It removes all events before
             * time zero (with a small tollerance)
             *
             * The data in the PhraseEdit at this point could be in any
             * state. MidiCommand_NoteOffs may be collated into the correct
             * @ref MidiEvent, or they may be in their own event (which they
             * will be when just recorded). Events may be in time order, or
             * in some completely random order.
             *
             * It also collates all MidiCommand_NoteOffs into the
             * appropriate MidiCommand_NoteOns so that the PhraseEdit
             * area will contain valid data that can be streamed out through
             * a @ref Playable interface.
             *
             * Prior to using tidy, you may need to apply @ref timeShift().
             *
             * This may cause the modified event to be raised.
             *
             * @param stopTime The time of the end of this MidiData (e.g. the
             *                 time recording stopped). If no stopTime is
             *                 specified then it is inferred from the last
             *                 event in the MidiData.
             * @see   tollerance
             */
            void tidy(Clock stopTime = -1);

            /**
             * Shift the time of every event in the PhraseEdit by @p delta
             * (the new event times are originalTime + @p delta).
             *
             * This operation can be applied to @ref tidy() or untidy
             * PhraseEdit data.
             *
             * You might want to use this method when recording @ref MidiEvent
             * data from an external source (using the @ref Transport class)
             * and you haven't started recording at the time zero. Once
             * recording has finished you can "normalise" the recorded data to
             * a reference start time of zero by calling
             * <pre>
             *     timeShift(-recordingStartTime);
             * </pre>
             *
             * If you do this, you will want to timeShift BEFORE calling
             * @ref tidy(), so that you won't get a whole slew of events
             * with minus times (which would not be "tidy" data).
             *
             * In order for a @ref Phrase to play in a @ref Part correctly, you
             * must ensure that it has a reference start time of zero, so you
             * should take care to perform this operation. (Alternatively,
             * use the @ref App::Record class which does all this for you).
             *
             * If you apply this method before calling @ref tidy, don't forget
             * to add the delta time to the @ref tidy()'s @p stopTime parameter
             * as well.
             *
             * Note that this operation can leave data untidy.
             *
             * This will cause the modified event to be raised.
             *
             * @param delta @ref Clock value to add to every event
             */
            void timeShift(Clock delta);

            /**
             * Creates a @ref Phrase from this @ref MidiData and inserts it
             * into the specified @ref PhraseList. Make sure that you have
             * done a tidy() first.
             *
             * If you don't specify a title for the new @ref Phrase then it
             * will automatically be given a name that is guaranteed not to be
             * used by any other @ref Phrase in the @ref PhraseList (you
             * can find out what it is with @ref Phrase::title()).
             *
             * If a @ref Phrase with the supplied @p title already exists in
             * the @ref PhraseList then a @ref PhraseListError is thrown, and
             * no new @ref Phrase is created.
             *
             * @param  pl    @ref PhraseList to insert the new @ref Phrase into
             *               (and from which to source a new unique name, if
             *               required)
             * @param  title New @ref Phrase's title - leave blank to have one
             *               automatically generated
             * @return New @ref Phrase object spawned from the data in this
             *         PhraseEdit
             * @throws PhraseListError
             * @see    tidy
             * @see    Phrase
             * @see    PhraseList
             */
            Phrase *createPhrase(PhraseList *pl,
                                 const std::string &title = "") const;

            /**
             * Returns the nth @ref MidiEvent in this @ref MidiData object.
             *
             * Note that, unlike the base @ref MidiData class, this object
             * is modifiable.
             *
             * The value returned for an index that is out of range is
             * undefined. The @ref size() method describes the valid
             * values.
             *
             * If you set the event directly using this method you run
             * the risk of leaving the PhraseEdit object 'untidy'.
             *
             * Any data manipulation performed via this operator will not
             * affect the modified status, and so no modified event will
             * be raised.
             *
             * In simple terms, use this method at your own risk!
             *
             * @param  n Index
             * @return @ref MidiEvent at index n
             */
            MidiEvent &operator[](size_t n) { return data[n]; }

            /**
             * Insert a @ref MidiEvent into the @ref MidiData in time order.
             *
             * @sect Important note
             *
             * If this is a @ref MidiCommand_NoteOn then you really want the
             * @ref MidiEvent to also hold the ballancing
             * @ref MidiCommand_NoteOff in its 'second half'.
             *
             * If it does then you can be assured that adding the
             * @ref MidiEvent to a 'tidied' PhraseEdit object will leave the
             * object still 'tidy'. If you only add a @ref MidiCommand_NoteOn/
             * @ref MidiCommand_NoteOff without the ballancing MIDI command
             * then the PhraseEdit is left 'untidy' and any use of it to create
             * a @ref Phrase and/or have it's data streamed out of a
             * @ref Playable interface is invalid.
             *
             * This restriction is important in the use of the TSE3 library,
             * if you don't use 'tidy' @ref MidiData then playback will produce
             * 'undefined' (very probably wrong) output.
             *
             * This may cause the modified event to be raised.
             *
             * @param MidiEvent to insert
             * @see   tidy
             */
            void insert(MidiEvent event);

            /**
             * Remove a @ref MidiEvent from the @ref MidiData. The result
             * is undefined if the index @p n is invalid.
             *
             * This may cause the modified event to be raised.
             *
             * @param n Index of MidiEvent to remove
             */
            void erase(size_t n);

            /**
             * Remove a @ref MidiEvent from the @ref MidiData. If there isn't a
             * @ref MidiEvent * matching this one then no change occurs.
             *
             * This may cause the modified event to be raised.
             *
             * @param event MidiEvent to remove
             */
            void erase(MidiEvent event);

            /******************************************************************
             * Accessing the selection
             *****************************************************************/

            /**
             * Selects the @ref MidiEvent at the specified index.
             *
             * @see deselect
             * @see selectRange
             */
            void select(size_t index);

            /**
             * Selects every @ref MidiEvent between the specified indexes.
             *
             * @see select
             * @see deselect
             */
            void selectRange(size_t from, size_t to);

            /**
             * Deselects the @ref MidiEvent at the specified index.
             *
             * @see select
             */
            void deselect(size_t index);

            /**
             * Clears any selection.
             */
            void clearSelection();

            /**
             * Inverts the selection status of every @ref MidiEvent.
             */
            void invertSelection();

            /**
             * Returns true if any @ref MidiEvent is selected.
             *
             * @return Whether any @ref MidiEvent is selected
             */
            bool selection() const { return _selection; }

            /**
             * Returns the index of the first selected @ref MidiEvent. If
             * no @ref MidiEvent has been selected, returns the value of
             * @ref size().
             *
             * @return The index of the first selected @ref MidiEvent
             */
            size_t firstSelectionIndex() const
            {
                return _selection ? _firstSelectionIndex : size();
            }

            /**
             * Returns the index of the last selected @ref MidiEvent. If
             * no @ref MidiEvent has been selected, returns the value of
             * @ref size().
             *
             * @return The index of the last selected @ref MidiEvent
             */
            size_t lastSelectionIndex() const
            {
                return _selection ? _lastSelectionIndex : size();
            }

            /**
             * Erases any @ref MidiEvent that has been selected.
             *
             * This may cause the modified event to be raised.
             */
            void eraseSelection();

            /******************************************************************
             * Accessing modification state
             *****************************************************************/

            /**
             * Returns true if the PhraseEdit has been modified since
             * creation or the last @ref reset().
             *
             * @return Whether PhraseEdit has been modified
             */
            bool modified() const { return _modified; }

            /**
             * Allows you to manually set the modified status.
             *
             * This may cause the modified event to be raised.
             *
             * @param m New modified status.
             */
            void setModified(bool m) { if (m != _modified) modified(m); }

            /******************************************************************
             * Other definitions
             *****************************************************************/

            /**
             * The default maximum no events in @ref Phrase editor. These days
             * the editor automatically grows so this is fairly redundant.
             */
            static const int defaultSize = 1024;

            /**
             * The time allowance given for notes to be before start time when
             * tidying.
             *
             * @see tidy
             */
            static const int tollerance = Clock::PPQN/2;

        private:

            PhraseEdit &operator=(const PhraseEdit &);
            PhraseEdit(const PhraseEdit &);

            /**
             * Updates the data held on selected events.
             */
            void updateSelectionInfo();

            /**
             * Updates the selection information on the grounds that the
             * @ref MidiEvent with index @index has changed to selection
             * state sel.
             *
             * This causes a notification to be sent.
             */
            void selected(size_t index, bool sel);

            /**
             * Sets the modified status and causes a notification to be sent.
             */
            void modified(bool m);

            /**
             * @p hint is a cached index that refers to the last position of
             * intertion. Since most inserts are performed in time order this
             * cached information can increase performance drastically.
             *
             * It has been shown, for example, to reduce MIDI file import
             * by at least a third.
             *
             * This used to be an iterator, however the insertion of the
             * iterator made it invalid which could lead to some freaky
             * crashes now and again.
             */
            size_t hint;

            /*
             * Selection information
             */
            bool   _selection;
            size_t _firstSelectionIndex;
            size_t _lastSelectionIndex;

            bool   _modified;

    };
}

#endif