blob: d7dbac817e19af0eb2b22f390805bb757fcac213 (
plain)
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
|
//=============================================================================
// Awl
// Audio Widget Library
// $Id:$
//
// Copyright (C) 2002-2006 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#include "tempoedit.h"
namespace Awl {
//---------------------------------------------------------
// TempoEdit
//---------------------------------------------------------
TempoEdit::TempoEdit(QWidget* parent)
: QDoubleSpinBox(parent)
{
curVal = -1.0;
setSingleStep(1.0);
setRange(30.0, 600.0);
connect(this, SIGNAL(valueChanged(double)), SLOT(newValue(double)));
}
//---------------------------------------------------------
// sizeHint
//---------------------------------------------------------
QSize TempoEdit::sizeHint() const
{
QFontMetrics fm(font());
int fw = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
int h = fm.height() + fw * 2;
int w = 2 + fm.width(QString("000.00")) + fw * 4 + 30;
return QSize(w, h).expandedTo(QApplication::globalStrut());
}
//---------------------------------------------------------
// newValue
//---------------------------------------------------------
void TempoEdit::newValue(double val)
{
if (val != curVal) {
curVal = val;
emit tempoChanged(tempo());
}
}
//---------------------------------------------------------
// setTempo
//---------------------------------------------------------
void TempoEdit::setTempo(int val)
{
double d = 60000000.0/double(val);
if (d != curVal) {
curVal = d;
blockSignals(true);
setValue(d);
blockSignals(false);
}
}
//---------------------------------------------------------
// tempo
//---------------------------------------------------------
int TempoEdit::tempo() const
{
return lrint(60000000.0/value());
}
}
|
