lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam and QMUL.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #include "ViewManager.h"
lbajardsilogic@0: #include "base/AudioPlaySource.h"
lbajardsilogic@0: #include "data/model/Model.h"
lbajardsilogic@0: #include "base/CommandHistory.h"
lbajardsilogic@0: #include "View.h"
lbajardsilogic@0: #include "system/System.h"
lbajardsilogic@0: 
lbajardsilogic@0: #include <QSettings>
lbajardsilogic@0: 
lbajardsilogic@0: #include <iostream>
lbajardsilogic@0: 
lbajardsilogic@0: //#define DEBUG_VIEW_MANAGER 1
lbajardsilogic@0: 
lbajardsilogic@0: ViewManager::ViewManager() :
lbajardsilogic@0:     m_playSource(0),
lbajardsilogic@0:     m_globalCentreFrame(0),
lbajardsilogic@0:     m_globalZoom(1024),
lbajardsilogic@0:     m_playbackFrame(0),
lbajardsilogic@0:     m_mainModelSampleRate(0),
lbajardsilogic@0:     m_lastLeft(0), 
lbajardsilogic@0:     m_lastRight(0),
lbajardsilogic@0:     m_inProgressExclusive(true),
lbajardsilogic@0:     m_toolMode(NavigateMode),
lbajardsilogic@0:     m_playLoopMode(false),
lbajardsilogic@0:     m_playSelectionMode(false),
lbajardsilogic@0:     m_overlayMode(StandardOverlays),
lbajardsilogic@0:     m_zoomWheelsEnabled(true)
lbajardsilogic@0: {
lbajardsilogic@0:     QSettings settings;
lbajardsilogic@0:     settings.beginGroup("MainWindow");
lbajardsilogic@0:     m_overlayMode = OverlayMode
lbajardsilogic@0:         (settings.value("overlay-mode", int(m_overlayMode)).toInt());
lbajardsilogic@0:     m_zoomWheelsEnabled =
lbajardsilogic@0:         settings.value("zoom-wheels-enabled", m_zoomWheelsEnabled).toBool();
lbajardsilogic@0:     settings.endGroup();
lbajardsilogic@0: /*!!!
lbajardsilogic@0:     connect(this, 
lbajardsilogic@0: 	    SIGNAL(zoomLevelChanged(void *, unsigned long, bool)),
lbajardsilogic@0: 	    SLOT(considerZoomChange(void *, unsigned long, bool)));
lbajardsilogic@0: */
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: ViewManager::~ViewManager()
lbajardsilogic@0: {
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: unsigned long
lbajardsilogic@0: ViewManager::getGlobalCentreFrame() const
lbajardsilogic@0: {
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER
lbajardsilogic@0:     std::cout << "ViewManager::getGlobalCentreFrame: returning " << m_globalCentreFrame << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0:     return m_globalCentreFrame;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setGlobalCentreFrame(unsigned long f)
lbajardsilogic@0: {
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER
lbajardsilogic@0:     std::cout << "ViewManager::setGlobalCentreFrame to " << f << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0:     m_globalCentreFrame = f;
lbajardsilogic@0:     emit globalCentreFrameChanged(f);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: unsigned long
lbajardsilogic@0: ViewManager::getGlobalZoom() const
lbajardsilogic@0: {
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER
lbajardsilogic@0:     std::cout << "ViewManager::getGlobalZoom: returning " << m_globalZoom << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0:     return m_globalZoom;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: unsigned long
lbajardsilogic@0: ViewManager::getPlaybackFrame() const
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playSource && m_playSource->isPlaying()) {
lbajardsilogic@0: 	m_playbackFrame = m_playSource->getCurrentPlayingFrame();
lbajardsilogic@0:     }
lbajardsilogic@0:     return m_playbackFrame;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setPlaybackFrame(unsigned long f)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playbackFrame != f) {
lbajardsilogic@0: 	m_playbackFrame = f;
lbajardsilogic@0: 	emit playbackFrameChanged(f);
lbajardsilogic@0: 	if (m_playSource && m_playSource->isPlaying()) {
lbajardsilogic@0: 	    m_playSource->play(f);
lbajardsilogic@0: 	}
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: bool
lbajardsilogic@0: ViewManager::haveInProgressSelection() const
lbajardsilogic@0: {
lbajardsilogic@0:     return !m_inProgressSelection.isEmpty();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: const Selection &
lbajardsilogic@0: ViewManager::getInProgressSelection(bool &exclusive) const
lbajardsilogic@0: {
lbajardsilogic@0:     exclusive = m_inProgressExclusive;
lbajardsilogic@0:     return m_inProgressSelection;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setInProgressSelection(const Selection &selection, bool exclusive)
lbajardsilogic@0: {
lbajardsilogic@0:     m_inProgressExclusive = exclusive;
lbajardsilogic@0:     m_inProgressSelection = selection;
lbajardsilogic@0:     if (exclusive) clearSelections();
lbajardsilogic@0:     emit inProgressSelectionChanged();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::clearInProgressSelection()
lbajardsilogic@0: {
lbajardsilogic@0:     m_inProgressSelection = Selection();
lbajardsilogic@0:     emit inProgressSelectionChanged();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: const MultiSelection &
lbajardsilogic@0: ViewManager::getSelection() const
lbajardsilogic@0: {
lbajardsilogic@0:     return m_selections;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: const MultiSelection::SelectionList &
lbajardsilogic@0: ViewManager::getSelections() const
lbajardsilogic@0: {
lbajardsilogic@0:     return m_selections.getSelections();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setSelection(const Selection &selection)
lbajardsilogic@0: {
lbajardsilogic@0:     MultiSelection ms(m_selections);
lbajardsilogic@0:     ms.setSelection(selection);
lbajardsilogic@0:     setSelections(ms);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::addSelection(const Selection &selection)
lbajardsilogic@0: {
lbajardsilogic@0:     MultiSelection ms(m_selections);
lbajardsilogic@0:     ms.addSelection(selection);
lbajardsilogic@0:     setSelections(ms);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::removeSelection(const Selection &selection)
lbajardsilogic@0: {
lbajardsilogic@0:     MultiSelection ms(m_selections);
lbajardsilogic@0:     ms.removeSelection(selection);
lbajardsilogic@0:     setSelections(ms);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::clearSelections()
lbajardsilogic@0: {
lbajardsilogic@0:     MultiSelection ms(m_selections);
lbajardsilogic@0:     ms.clearSelections();
lbajardsilogic@0:     setSelections(ms);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setSelections(const MultiSelection &ms)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_selections.getSelections() == ms.getSelections()) return;
lbajardsilogic@0:     SetSelectionCommand *command = new SetSelectionCommand(this, ms);
lbajardsilogic@0:     CommandHistory::getInstance()->addCommand(command);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::signalSelectionChange()
lbajardsilogic@0: {
lbajardsilogic@0:     emit selectionChanged();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: ViewManager::SetSelectionCommand::SetSelectionCommand(ViewManager *vm,
lbajardsilogic@0: 						      const MultiSelection &ms) :
lbajardsilogic@0:     m_vm(vm),
lbajardsilogic@0:     m_oldSelection(vm->m_selections),
lbajardsilogic@0:     m_newSelection(ms)
lbajardsilogic@0: {
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: ViewManager::SetSelectionCommand::~SetSelectionCommand() { }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::SetSelectionCommand::execute()
lbajardsilogic@0: {
lbajardsilogic@0:     m_vm->m_selections = m_newSelection;
lbajardsilogic@0:     m_vm->signalSelectionChange();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::SetSelectionCommand::unexecute()
lbajardsilogic@0: {
lbajardsilogic@0:     m_vm->m_selections = m_oldSelection;
lbajardsilogic@0:     m_vm->signalSelectionChange();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: QString
lbajardsilogic@0: ViewManager::SetSelectionCommand::getName() const
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_newSelection.getSelections().empty()) return tr("Clear Selection");
lbajardsilogic@0:     else return tr("Select");
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: Selection
lbajardsilogic@0: ViewManager::getContainingSelection(size_t frame, bool defaultToFollowing) const
lbajardsilogic@0: {
lbajardsilogic@0:     return m_selections.getContainingSelection(frame, defaultToFollowing);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setToolMode(ToolMode mode)
lbajardsilogic@0: {
lbajardsilogic@0:     m_toolMode = mode;
lbajardsilogic@0: 
lbajardsilogic@0:     emit toolModeChanged();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setPlayLoopMode(bool mode)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playLoopMode != mode) {
lbajardsilogic@0: 
lbajardsilogic@0:         m_playLoopMode = mode;
lbajardsilogic@0: 
lbajardsilogic@0:         emit playLoopModeChanged();
lbajardsilogic@0:         emit playLoopModeChanged(mode);
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setPlaySelectionMode(bool mode)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playSelectionMode != mode) {
lbajardsilogic@0: 
lbajardsilogic@0:         m_playSelectionMode = mode;
lbajardsilogic@0: 
lbajardsilogic@0:         emit playSelectionModeChanged();
lbajardsilogic@0:         emit playSelectionModeChanged(mode);
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: size_t 
lbajardsilogic@0: ViewManager::getPlaybackSampleRate() const
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playSource) {
lbajardsilogic@0:         return m_playSource->getSourceSampleRate();
lbajardsilogic@0:     }
lbajardsilogic@0:     return 0;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: size_t
lbajardsilogic@0: ViewManager::getOutputSampleRate() const
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playSource) {
lbajardsilogic@0: 	return m_playSource->getTargetSampleRate();
lbajardsilogic@0:     }
lbajardsilogic@0:     return 0;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setAudioPlaySource(AudioPlaySource *source)
lbajardsilogic@0: {
lbajardsilogic@0:     if (!m_playSource) {
lbajardsilogic@0: 	QTimer::singleShot(100, this, SLOT(checkPlayStatus()));
lbajardsilogic@0:     }
lbajardsilogic@0:     m_playSource = source;
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::playStatusChanged(bool /* playing */)
lbajardsilogic@0: {
lbajardsilogic@0:     checkPlayStatus();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::checkPlayStatus()
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_playSource && m_playSource->isPlaying()) {
lbajardsilogic@0: 
lbajardsilogic@0: 	float left = 0, right = 0;
lbajardsilogic@0: 	if (m_playSource->getOutputLevels(left, right)) {
lbajardsilogic@0: 	    if (left != m_lastLeft || right != m_lastRight) {
lbajardsilogic@0: 		emit outputLevelsChanged(left, right);
lbajardsilogic@0: 		m_lastLeft = left;
lbajardsilogic@0: 		m_lastRight = right;
lbajardsilogic@0: 	    }
lbajardsilogic@0: 	}
lbajardsilogic@0: 
lbajardsilogic@0: 	m_playbackFrame = m_playSource->getCurrentPlayingFrame();
lbajardsilogic@0: 
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER
lbajardsilogic@0: 	std::cout << "ViewManager::checkPlayStatus: Playing, frame " << m_playbackFrame << ", levels " << m_lastLeft << "," << m_lastRight << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0: 
lbajardsilogic@0: 	emit playbackFrameChanged(m_playbackFrame);
lbajardsilogic@0: 
lbajardsilogic@0: 	QTimer::singleShot(20, this, SLOT(checkPlayStatus()));
lbajardsilogic@0: 
lbajardsilogic@0:     } else {
lbajardsilogic@0: 
lbajardsilogic@0: 	QTimer::singleShot(100, this, SLOT(checkPlayStatus()));
lbajardsilogic@0: 	
lbajardsilogic@0: 	if (m_lastLeft != 0.0 || m_lastRight != 0.0) {
lbajardsilogic@0: 	    emit outputLevelsChanged(0.0, 0.0);
lbajardsilogic@0: 	    m_lastLeft = 0.0;
lbajardsilogic@0: 	    m_lastRight = 0.0;
lbajardsilogic@0: 	}
lbajardsilogic@0: 
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER
lbajardsilogic@0: //	std::cout << "ViewManager::checkPlayStatus: Not playing" << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: bool
lbajardsilogic@0: ViewManager::isPlaying() const
lbajardsilogic@0: {
lbajardsilogic@0:     return m_playSource && m_playSource->isPlaying();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::viewCentreFrameChanged(unsigned long f, bool locked,
lbajardsilogic@0:                                     PlaybackFollowMode mode)
lbajardsilogic@0: {
lbajardsilogic@0:     View *v = dynamic_cast<View *>(sender());
lbajardsilogic@0: 
lbajardsilogic@0:     if (locked) {
lbajardsilogic@0:         m_globalCentreFrame = f;
lbajardsilogic@0:         emit globalCentreFrameChanged(f);
lbajardsilogic@0:     } else {
lbajardsilogic@0:         if (v) emit viewCentreFrameChanged(v, f);
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     if (mode == PlaybackIgnore) {
lbajardsilogic@0:         return;
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     seek(f);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::seek(unsigned long f)
lbajardsilogic@0: {
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER 
lbajardsilogic@0:     std::cout << "ViewManager::seek(" << f << ")" << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0: 
lbajardsilogic@0:     if (m_playSource && m_playSource->isPlaying()) {
lbajardsilogic@0: 	unsigned long playFrame = m_playSource->getCurrentPlayingFrame();
lbajardsilogic@191: 	unsigned long diff = MAX(f, playFrame) - MIN(f, playFrame);
lbajardsilogic@0: 	if (diff > 20000) {
lbajardsilogic@0: 	    m_playbackFrame = f;
lbajardsilogic@0: 	    m_playSource->play(f);
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER 
lbajardsilogic@0: 	    std::cout << "ViewManager::considerSeek: reseeking from " << playFrame << " to " << f << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0:             emit playbackFrameChanged(f);
lbajardsilogic@0: 	}
lbajardsilogic@0:     } else {
lbajardsilogic@0:         if (m_playbackFrame != f) {
lbajardsilogic@0:             m_playbackFrame = f;
lbajardsilogic@0:             emit playbackFrameChanged(f);
lbajardsilogic@0:         }
lbajardsilogic@0:     }
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::viewZoomLevelChanged(unsigned long z, bool locked)
lbajardsilogic@0: {
lbajardsilogic@0:     View *v = dynamic_cast<View *>(sender());
lbajardsilogic@0: 
lbajardsilogic@0:     if (!v) {
lbajardsilogic@0:         std::cerr << "ViewManager::viewZoomLevelChanged: WARNING: sender is not a view" << std::endl;
lbajardsilogic@0:         return;
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0: //!!!    emit zoomLevelChanged();
lbajardsilogic@0:     
lbajardsilogic@0:     if (locked) {
lbajardsilogic@0: 	m_globalZoom = z;
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0: #ifdef DEBUG_VIEW_MANAGER 
lbajardsilogic@0:     std::cout << "ViewManager::viewZoomLevelChanged(" << v << ", " << z << ", " << locked << ")" << std::endl;
lbajardsilogic@0: #endif
lbajardsilogic@0: 
lbajardsilogic@0:     emit viewZoomLevelChanged(v, z, locked);
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setOverlayMode(OverlayMode mode)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_overlayMode != mode) {
lbajardsilogic@0:         m_overlayMode = mode;
lbajardsilogic@0:         emit overlayModeChanged();
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     QSettings settings;
lbajardsilogic@0:     settings.beginGroup("MainWindow");
lbajardsilogic@0:     settings.setValue("overlay-mode", int(m_overlayMode));
lbajardsilogic@0:     settings.endGroup();
lbajardsilogic@0: }
lbajardsilogic@0: 
lbajardsilogic@0: void
lbajardsilogic@0: ViewManager::setZoomWheelsEnabled(bool enabled)
lbajardsilogic@0: {
lbajardsilogic@0:     if (m_zoomWheelsEnabled != enabled) {
lbajardsilogic@0:         m_zoomWheelsEnabled = enabled;
lbajardsilogic@0:         emit zoomWheelsEnabledChanged();
lbajardsilogic@0:     }
lbajardsilogic@0: 
lbajardsilogic@0:     QSettings settings;
lbajardsilogic@0:     settings.beginGroup("MainWindow");
lbajardsilogic@0:     settings.setValue("zoom-wheels-enabled", m_zoomWheelsEnabled);
lbajardsilogic@0:     settings.endGroup();
lbajardsilogic@0: }
lbajardsilogic@0: