Added old abandoned KDE3 version of the RoseGarden MIDI tool

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1097595 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 475 insertions, 0 deletions

diff --git a/src/gui/dialogs/TempoDialog.cpp b/src/gui/dialogs/TempoDialog.cpp
new file mode 100644
index 0000000..3896fde
--- /dev/null
+++ b/src/gui/dialogs/TempoDialog.cpp
@@ -0,0 +1,475 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rosegarden
+    A MIDI and audio sequencer and musical notation editor.
+ 
+    This program is Copyright 2000-2008
+        Guillaume Laurent   <[email protected]>,
+        Chris Cannam        <[email protected]>,
+        Richard Bown        <[email protected]>
+ 
+    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
+    Bown to claim authorship of this work have been asserted.
+ 
+    Other copyrights also apply to some parts of this work.  Please
+    see the AUTHORS file and individual file headers for details.
+ 
+    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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+
+#include "TempoDialog.h"
+#include <qlayout.h>
+
+#include <klocale.h>
+#include "misc/Debug.h"
+#include "base/Composition.h"
+#include "base/NotationTypes.h"
+#include "base/RealTime.h"
+#include "document/RosegardenGUIDoc.h"
+#include "gui/editors/notation/NotePixmapFactory.h"
+#include "gui/widgets/TimeWidget.h"
+#include "gui/widgets/HSpinBox.h"
+#include <kdialogbase.h>
+#include <qbuttongroup.h>
+#include <qcheckbox.h>
+#include <qframe.h>
+#include <qgroupbox.h>
+#include <qhbox.h>
+#include <qlabel.h>
+#include <qradiobutton.h>
+#include <qstring.h>
+#include <qvbox.h>
+#include <qwidget.h>
+
+
+namespace Rosegarden
+{
+
+TempoDialog::TempoDialog(QWidget *parent, RosegardenGUIDoc *doc,
+                         bool timeEditable):
+        KDialogBase(parent, 0, true, i18n("Insert Tempo Change"), Ok | Cancel | Help),
+        m_doc(doc),
+        m_tempoTime(0)
+{
+    setHelp("tempo");
+
+    QVBox *vbox = makeVBoxMainWidget();
+    QGroupBox *groupBox = new QGroupBox(1, Horizontal, i18n("Tempo"), vbox);
+
+    QFrame *frame = new QFrame(groupBox);
+    QGridLayout *layout = new QGridLayout(frame, 4, 3, 5, 5);
+
+    // Set tempo
+    layout->addWidget(new QLabel(i18n("New tempo:"), frame), 0, 1);
+    m_tempoValueSpinBox = new HSpinBox(frame, 0, 100000, 0.0, 1000.0, 5);
+    layout->addWidget(m_tempoValueSpinBox, 0, 2);
+
+    connect(m_tempoValueSpinBox, SIGNAL(valueChanged(const QString &)),
+            SLOT(slotTempoChanged(const QString &)));
+
+    m_tempoTap= new QPushButton(i18n("Tap"), frame);
+    layout->addWidget(m_tempoTap, 0, 3);
+    connect(m_tempoTap, SIGNAL(clicked()), SLOT(slotTapClicked()));
+
+
+    m_tempoConstant = new QRadioButton(i18n("Tempo is fixed until the following tempo change"), frame);
+    m_tempoRampToNext = new QRadioButton(i18n("Tempo ramps to the following tempo"), frame);
+    m_tempoRampToTarget = new QRadioButton(i18n("Tempo ramps to:"), frame);
+
+    //    m_tempoTargetCheckBox = new QCheckBox(i18n("Ramping to:"), frame);
+    m_tempoTargetSpinBox = new HSpinBox(frame, 0, 100000, 0.0, 1000.0, 5);
+
+    //    layout->addMultiCellWidget(m_tempoTargetCheckBox, 1, 1, 0, 1, AlignRight);
+    //    layout->addWidget(m_tempoTargetSpinBox, 1, 2);
+
+    layout->addMultiCellWidget(m_tempoConstant, 1, 1, 1, 2);
+    layout->addMultiCellWidget(m_tempoRampToNext, 2, 2, 1, 2);
+    layout->addWidget(m_tempoRampToTarget, 3, 1);
+    layout->addWidget(m_tempoTargetSpinBox, 3, 2);
+
+    //    connect(m_tempoTargetCheckBox, SIGNAL(clicked()),
+    //            SLOT(slotTargetCheckBoxClicked()));
+    connect(m_tempoConstant, SIGNAL(clicked()),
+            SLOT(slotTempoConstantClicked()));
+    connect(m_tempoRampToNext, SIGNAL(clicked()),
+            SLOT(slotTempoRampToNextClicked()));
+    connect(m_tempoRampToTarget, SIGNAL(clicked()),
+            SLOT(slotTempoRampToTargetClicked()));
+    connect(m_tempoTargetSpinBox, SIGNAL(valueChanged(const QString &)),
+            SLOT(slotTargetChanged(const QString &)));
+
+    m_tempoBeatLabel = new QLabel(frame);
+    layout->addWidget(m_tempoBeatLabel, 0, 4);
+
+    m_tempoBeat = new QLabel(frame);
+    layout->addWidget(m_tempoBeat, 0, 5);
+
+    m_tempoBeatsPerMinute = new QLabel(frame);
+    layout->addWidget(m_tempoBeatsPerMinute, 0, 6);
+
+    m_timeEditor = 0;
+
+    if (timeEditable) {
+        m_timeEditor = new TimeWidget
+                       (i18n("Time of tempo change"),
+                        vbox, &m_doc->getComposition(), 0, true);
+        populateTempo();
+        return ;
+    }
+
+    // Scope Box
+    QButtonGroup *scopeGroup = new QButtonGroup(1, Horizontal,
+                                                i18n("Scope"), vbox);
+
+//    new QLabel(scopeBox);
+
+    QVBox *scopeBox = new QVBox(scopeGroup);
+
+    scopeBox->setSpacing(5);
+    scopeBox->setMargin(5);
+
+    QHBox *currentBox = new QHBox(scopeBox);
+    new QLabel(i18n("The pointer is currently at "), currentBox);
+    m_tempoTimeLabel = new QLabel(currentBox);
+    m_tempoBarLabel = new QLabel(currentBox);
+    QLabel *spare = new QLabel(currentBox);
+    currentBox->setStretchFactor(spare, 20);
+
+    m_tempoStatusLabel = new QLabel(scopeBox);
+
+//    new QLabel(scopeBox);
+
+    QHBox *changeWhereBox = new QHBox(scopeBox);
+    spare = new QLabel("      ", changeWhereBox);
+    QVBox *changeWhereVBox = new QVBox(changeWhereBox);
+    changeWhereBox->setStretchFactor(changeWhereVBox, 20);
+
+    m_tempoChangeHere = new QRadioButton
+                        (i18n("Apply this tempo from here onwards"),
+                         changeWhereVBox);
+
+    m_tempoChangeBefore = new QRadioButton
+                          (i18n("Replace the last tempo change"),
+                           changeWhereVBox);
+    m_tempoChangeBeforeAt = new QLabel(changeWhereVBox);
+    m_tempoChangeBeforeAt->hide();
+
+    m_tempoChangeStartOfBar = new QRadioButton
+                              (i18n("Apply this tempo from the start of this bar"), changeWhereVBox);
+
+    m_tempoChangeGlobal = new QRadioButton
+                          (i18n("Apply this tempo to the whole composition"), changeWhereVBox);
+
+    QHBox *optionHBox = new QHBox(changeWhereVBox);
+    new QLabel("         ", optionHBox);
+    m_defaultBox = new QCheckBox
+                   (i18n("Also make this the default tempo"), optionHBox);
+    spare = new QLabel(optionHBox);
+    optionHBox->setStretchFactor(spare, 20);
+
+//    new QLabel(scopeBox);
+
+    connect(m_tempoChangeHere, SIGNAL(clicked()),
+            SLOT(slotActionChanged()));
+    connect(m_tempoChangeBefore, SIGNAL(clicked()),
+            SLOT(slotActionChanged()));
+    connect(m_tempoChangeStartOfBar, SIGNAL(clicked()),
+            SLOT(slotActionChanged()));
+    connect(m_tempoChangeGlobal, SIGNAL(clicked()),
+            SLOT(slotActionChanged()));
+
+    m_tempoChangeHere->setChecked(true);
+
+    // disable initially
+    m_defaultBox->setEnabled(false);
+
+    populateTempo();
+}
+
+TempoDialog::~TempoDialog()
+{}
+
+void
+TempoDialog::setTempoPosition(timeT time)
+{
+    m_tempoTime = time;
+    populateTempo();
+}
+
+void
+TempoDialog::populateTempo()
+{
+    Composition &comp = m_doc->getComposition();
+    tempoT tempo = comp.getTempoAtTime(m_tempoTime);
+    std::pair<bool, tempoT> ramping(false, tempo);
+
+    int tempoChangeNo = comp.getTempoChangeNumberAt(m_tempoTime);
+    if (tempoChangeNo >= 0) {
+        tempo = comp.getTempoChange(tempoChangeNo).second;
+        ramping = comp.getTempoRamping(tempoChangeNo, false);
+    }
+
+    m_tempoValueSpinBox->setValue(tempo);
+
+    if (ramping.first) {
+        if (ramping.second) {
+            m_tempoTargetSpinBox->setEnabled(true);
+            m_tempoTargetSpinBox->setValue(ramping.second);
+            m_tempoConstant->setChecked(false);
+            m_tempoRampToNext->setChecked(false);
+            m_tempoRampToTarget->setChecked(true);
+        } else {
+            ramping = comp.getTempoRamping(tempoChangeNo, true);
+            m_tempoTargetSpinBox->setEnabled(false);
+            m_tempoTargetSpinBox->setValue(ramping.second);
+            m_tempoConstant->setChecked(false);
+            m_tempoRampToNext->setChecked(true);
+            m_tempoRampToTarget->setChecked(false);
+        }
+    } else {
+        m_tempoTargetSpinBox->setEnabled(false);
+        m_tempoTargetSpinBox->setValue(tempo);
+        m_tempoConstant->setChecked(true);
+        m_tempoRampToNext->setChecked(false);
+        m_tempoRampToTarget->setChecked(false);
+    }
+
+    //    m_tempoTargetCheckBox->setChecked(ramping.first);
+    m_tempoTargetSpinBox->setEnabled(ramping.first);
+
+    updateBeatLabels(comp.getTempoQpm(tempo));
+
+    if (m_timeEditor) {
+        m_timeEditor->slotSetTime(m_tempoTime);
+        return ;
+    }
+
+    RealTime tempoTime = comp.getElapsedRealTime(m_tempoTime);
+    QString milliSeconds;
+    milliSeconds.sprintf("%03d", tempoTime.msec());
+    m_tempoTimeLabel->setText(i18n("%1.%2 s,").arg(tempoTime.sec)
+                              .arg(milliSeconds));
+
+    int barNo = comp.getBarNumber(m_tempoTime);
+    if (comp.getBarStart(barNo) == m_tempoTime) {
+        m_tempoBarLabel->setText
+        (i18n("at the start of measure %1.").arg(barNo + 1));
+        m_tempoChangeStartOfBar->setEnabled(false);
+    } else {
+        m_tempoBarLabel->setText(
+            i18n("in the middle of measure %1.").arg(barNo + 1));
+        m_tempoChangeStartOfBar->setEnabled(true);
+    }
+
+    m_tempoChangeBefore->setEnabled(false);
+    m_tempoChangeBeforeAt->setEnabled(false);
+
+    bool havePrecedingTempo = false;
+
+    if (tempoChangeNo >= 0) {
+
+        timeT lastTempoTime = comp.getTempoChange(tempoChangeNo).first;
+        if (lastTempoTime < m_tempoTime) {
+
+            RealTime lastRT = comp.getElapsedRealTime(lastTempoTime);
+            QString lastms;
+            lastms.sprintf("%03d", lastRT.msec());
+            int lastBar = comp.getBarNumber(lastTempoTime);
+            m_tempoChangeBeforeAt->setText
+            (i18n("        (at %1.%2 s, in measure %3)").arg(lastRT.sec)
+             .arg(lastms).arg(lastBar + 1));
+            m_tempoChangeBeforeAt->show();
+
+            m_tempoChangeBefore->setEnabled(true);
+            m_tempoChangeBeforeAt->setEnabled(true);
+
+            havePrecedingTempo = true;
+        }
+    }
+
+    if (comp.getTempoChangeCount() > 0) {
+
+        if (havePrecedingTempo) {
+            m_tempoStatusLabel->hide();
+        } else {
+            m_tempoStatusLabel->setText
+            (i18n("There are no preceding tempo changes."));
+        }
+
+        m_tempoChangeGlobal->setEnabled(true);
+
+    } else {
+
+        m_tempoStatusLabel->setText
+        (i18n("There are no other tempo changes."));
+
+        m_tempoChangeGlobal->setEnabled(false);
+    }
+
+    m_defaultBox->setEnabled(false);
+}
+
+void
+TempoDialog::updateBeatLabels(double qpm)
+{
+    Composition &comp = m_doc->getComposition();
+
+    // If the time signature's beat is not a crotchet, need to show
+    // bpm separately
+
+    timeT beat = comp.getTimeSignatureAt(m_tempoTime).getBeatDuration();
+    if (beat == Note(Note::Crotchet).getDuration()) {
+        m_tempoBeatLabel->setText(i18n(" bpm"));
+        m_tempoBeatLabel->show();
+        m_tempoBeat->hide();
+        m_tempoBeatsPerMinute->hide();
+    } else {
+        //	m_tempoBeatLabel->setText(" (");
+        m_tempoBeatLabel->setText("  ");
+
+        timeT error = 0;
+        m_tempoBeat->setPixmap(NotePixmapFactory::toQPixmap
+                               (NotePixmapFactory::makeNoteMenuPixmap(beat, error)));
+        m_tempoBeat->setMaximumWidth(25);
+        if (error)
+            m_tempoBeat->setPixmap(NotePixmapFactory::toQPixmap
+                                   (NotePixmapFactory::makeToolbarPixmap
+                                    ("menu-no-note")));
+
+        m_tempoBeatsPerMinute->setText
+        //	    (QString("= %1 )").arg
+        (QString("= %1 ").arg
+         (int(qpm * Note(Note::Crotchet).getDuration() / beat)));
+        m_tempoBeatLabel->show();
+        m_tempoBeat->show();
+        m_tempoBeatsPerMinute->show();
+    }
+}
+
+void
+TempoDialog::slotTempoChanged(const QString &)
+{
+    updateBeatLabels(double(m_tempoValueSpinBox->valuef()));
+}
+
+void
+TempoDialog::slotTargetChanged(const QString &)
+{
+    //...
+}
+
+void
+TempoDialog::slotTempoConstantClicked()
+{
+    m_tempoRampToNext->setChecked(false);
+    m_tempoRampToTarget->setChecked(false);
+    m_tempoTargetSpinBox->setEnabled(false);
+}
+
+void
+TempoDialog::slotTempoRampToNextClicked()
+{
+    m_tempoConstant->setChecked(false);
+    m_tempoRampToTarget->setChecked(false);
+    m_tempoTargetSpinBox->setEnabled(false);
+}
+
+void
+TempoDialog::slotTempoRampToTargetClicked()
+{
+    m_tempoConstant->setChecked(false);
+    m_tempoRampToNext->setChecked(false);
+    m_tempoTargetSpinBox->setEnabled(true);
+}
+
+void
+TempoDialog::slotActionChanged()
+{
+    m_defaultBox->setEnabled(m_tempoChangeGlobal->isChecked());
+}
+
+void
+TempoDialog::slotOk()
+{
+    tempoT tempo = m_tempoValueSpinBox->value();
+    RG_DEBUG << "Tempo is " << tempo << endl;
+
+    tempoT target = -1;
+    if (m_tempoRampToNext->isChecked()) {
+        target = 0;
+    } else if (m_tempoRampToTarget->isChecked()) {
+        target = m_tempoTargetSpinBox->value();
+    }
+
+    RG_DEBUG << "Target is " << target << endl;
+
+    if (m_timeEditor) {
+
+        emit changeTempo(m_timeEditor->getTime(),
+                         tempo,
+                         target,
+                         AddTempo);
+
+    } else {
+
+        TempoDialogAction action = AddTempo;
+
+        if (m_tempoChangeBefore->isChecked()) {
+            action = ReplaceTempo;
+        } else if (m_tempoChangeStartOfBar->isChecked()) {
+            action = AddTempoAtBarStart;
+        } else if (m_tempoChangeGlobal->isChecked()) {
+            action = GlobalTempo;
+            if (m_defaultBox->isChecked()) {
+                action = GlobalTempoWithDefault;
+            }
+        }
+
+        emit changeTempo(m_tempoTime,
+                         tempo,
+                         target,
+                         action);
+    }
+
+    KDialogBase::slotOk();
+}
+
+void
+TempoDialog::slotTapClicked()
+{
+    QTime now = QTime::currentTime();
+
+    if (m_tapMinusOne != QTime()) {
+
+        int ms1 = m_tapMinusOne.msecsTo(now);
+
+        if (ms1 < 10000) {
+
+            int msec = ms1;
+
+            if (m_tapMinusTwo != QTime()) {
+                int ms2 = m_tapMinusTwo.msecsTo(m_tapMinusOne);
+                if (ms2 < 10000) {
+                    msec = (ms1 + ms2) / 2;
+                }
+            }
+
+            int bpm = 60000 / msec;
+            m_tempoValueSpinBox->setValue(bpm * 100000);
+        }
+    }
+
+    m_tapMinusTwo = m_tapMinusOne;
+    m_tapMinusOne = now;
+}
+
+
+}
+
+#include "TempoDialog.moc"