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
|
/***************************************************************************
UndoInsertAction.h - UndoAction for insertion of a range of samples
-------------------
begin : Jun 14 2001
copyright : (C) 2001 by Thomas Eschenbacher
email : Thomas Eschenbacher <thomas.eschenbacher@gmx.de>
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef UNDO_INSERT_ACTION_H
#define UNDO_INSERT_ACTION_H
#include "config.h"
#include <QList>
#include <QObject>
#include <QString>
#include <QVector>
#include "libkwave/Sample.h"
#include "libkwave/undo/UndoAction.h"
class QWidget;
namespace Kwave
{
class SignalManager;
class UndoInsertAction: public QObject, public Kwave::UndoAction
{
Q_OBJECT
public:
/**
* Constructor.
* @param parent_widget the widget used as parent for displaying
* error messages
* @param track_list list of affected tracks
* @param offset index of the first inserted sample
* @param length number of inserted samples
*/
UndoInsertAction(QWidget *parent_widget,
const QVector<unsigned int> &track_list,
sample_index_t offset,
sample_index_t length);
/** @see UndoAction::description() */
QString description() override;
/** @see UndoAction::undoSize() */
qint64 undoSize() override;
/** @see UndoAction::redoSize() */
qint64 redoSize() override;
/**
* @see UndoAction::store()
*/
bool store(Kwave::SignalManager &manager) override;
/**
* Removes samples from the track.
* @see UndoAction::undo()
*/
Kwave::UndoAction *undo(Kwave::SignalManager &manager,
bool with_redo) override;
/** dump, for debugging purposes */
void dump(const QString &indent) override;
public slots:
/**
* Can be connected to a Writer's <c>sigSamplesWritten</c> signal
* if the writer has been opened in insert or append mode. In these
* cases the undo action's length only is determined when the writer
* gets closed.
* @see Kwave::Writer::sigSamplesWritten
*/
void setLength(sample_index_t length);
protected:
/** parent widget for showing error messages */
QWidget *m_parent_widget;
/** list of affected tracks */
QVector<unsigned int> m_track_list;
/** first sample */
sample_index_t m_offset;
/** number of samples */
sample_index_t m_length;
};
}
#endif /* UNDO_INSERT_ACTION_H */
//***************************************************************************
//***************************************************************************
|
