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authorRobert Jonsson <spamatica@gmail.com>2011-03-07 19:01:11 +0000
committerRobert Jonsson <spamatica@gmail.com>2011-03-07 19:01:11 +0000
commite40fc849149dd97c248866a4a1d026dda5e57b62 (patch)
treeb12b358f3b3a0608001d30403358f8443118ec5f /attic/muse_qt4_evolution/awl/tempoedit.cpp
parent1bd4f2e8d9745cabb667b043171cad22c8577768 (diff)
clean3
Diffstat (limited to 'attic/muse_qt4_evolution/awl/tempoedit.cpp')
-rw-r--r--attic/muse_qt4_evolution/awl/tempoedit.cpp88
1 files changed, 88 insertions, 0 deletions
diff --git a/attic/muse_qt4_evolution/awl/tempoedit.cpp b/attic/muse_qt4_evolution/awl/tempoedit.cpp
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+//=============================================================================
+// 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());
+ }
+
+}
+