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208 lines
5.3 KiB
208 lines
5.3 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "ProgressDialog.h"
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#include "CurrentProgressDialog.h"
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#include "misc/Debug.h"
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#include "gui/application/RosegardenApplication.h"
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#include <tdelocale.h>
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#include <tqcursor.h>
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#include <tqprogressdialog.h>
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#include <tqstring.h>
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#include <tqtimer.h>
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#include <tqwidget.h>
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namespace Rosegarden
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{
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bool ProgressDialog::m_modalVisible = false;
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ProgressDialog::ProgressDialog(TQWidget *creator,
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const char *name,
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bool modal):
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KProgressDialog(creator, name,
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i18n("Processing..."), TQString(), modal),
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m_wasVisible(false),
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m_frozen(false),
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m_modal(modal)
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{
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setCaption(i18n("Processing..."));
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RG_DEBUG << "ProgressDialog::ProgressDialog type 1 - "
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<< labelText() << " - modal : " << modal << endl;
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connect(progressBar(), TQ_SIGNAL(percentageChanged (int)),
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this, TQ_SLOT(slotCheckShow(int)));
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m_chrono.start();
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CurrentProgressDialog::set
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(this);
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setMinimumDuration(500); // set a default value for this
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}
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ProgressDialog::ProgressDialog(
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const TQString &labelText,
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int totalSteps,
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TQWidget *creator,
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const char *name,
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bool modal) :
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KProgressDialog(creator,
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name,
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i18n("Processing..."),
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labelText,
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modal),
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m_wasVisible(false),
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m_frozen(false),
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m_modal(modal)
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{
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progressBar()->setTotalSteps(totalSteps);
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RG_DEBUG << "ProgressDialog::ProgressDialog type 2 - "
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<< labelText << " - modal : " << modal << endl;
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connect(progressBar(), TQ_SIGNAL(percentageChanged (int)),
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this, TQ_SLOT(slotCheckShow(int)));
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m_chrono.start();
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CurrentProgressDialog::set
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(this);
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setMinimumDuration(500); // set a default value for this
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}
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ProgressDialog::~ProgressDialog()
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{
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m_modalVisible = false;
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}
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void
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ProgressDialog::polish()
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{
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KProgressDialog::polish();
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if (allowCancel())
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setCursor(TQt::ArrowCursor);
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else
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TQApplication::setOverrideCursor(TQCursor(TQt::waitCursor));
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}
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void ProgressDialog::hideEvent(TQHideEvent* e)
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{
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if (!allowCancel())
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TQApplication::restoreOverrideCursor();
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KProgressDialog::hideEvent(e);
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m_modalVisible = false;
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}
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void
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ProgressDialog::slotSetOperationName(TQString name)
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{
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// RG_DEBUG << "ProgressDialog::slotSetOperationName("
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// << name << ") visible : " << isVisible() << endl;
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setLabel(name);
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// Little trick stolen from TQProgressDialog
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// increase resize only, never shrink
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int w = TQMAX( isVisible() ? width() : 0, sizeHint().width() );
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int h = TQMAX( isVisible() ? height() : 0, sizeHint().height() );
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resize( w, h );
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}
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void ProgressDialog::slotCancel()
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{
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RG_DEBUG << "ProgressDialog::slotCancel()\n";
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KProgressDialog::slotCancel();
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slotFreeze();
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}
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void ProgressDialog::slotCheckShow(int)
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{
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// RG_DEBUG << "ProgressDialog::slotCheckShow() : "
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// << m_chrono.elapsed() << " - " << minimumDuration()
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// << endl;
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if (!isVisible() &&
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!m_frozen &&
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m_chrono.elapsed() > minimumDuration()) {
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RG_DEBUG << "ProgressDialog::slotCheckShow() : showing dialog\n";
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show();
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if (m_modal)
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m_modalVisible = true;
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processEvents();
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}
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}
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void ProgressDialog::slotFreeze()
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{
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RG_DEBUG << "ProgressDialog::slotFreeze()\n";
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m_wasVisible = isVisible();
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if (isVisible()) {
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m_modalVisible = false;
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hide();
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}
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// This is also a convenient place to ensure the wait cursor (if
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// currently shown) returns to the original cursor to ensure that
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// the user can respond to whatever's freezing the progress dialog
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TQApplication::restoreOverrideCursor();
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mShowTimer->stop();
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m_frozen = true;
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}
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void ProgressDialog::slotThaw()
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{
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RG_DEBUG << "ProgressDialog::slotThaw()\n";
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if (m_wasVisible) {
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if (m_modal)
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m_modalVisible = true;
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show();
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}
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// Restart timer
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mShowTimer->start(minimumDuration());
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m_frozen = false;
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m_chrono.restart();
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}
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void ProgressDialog::processEvents()
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{
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// RG_DEBUG << "ProgressDialog::processEvents: modalVisible is "
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// << m_modalVisible << endl;
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if (m_modalVisible) {
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kapp->processEvents(50);
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} else {
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rgapp->refreshGUI(50);
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}
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}
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}
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#include "ProgressDialog.moc"
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