view widgets/PropertyStack.cpp @ 333:e74b56f07c73

* Some work on correct alignment when moving panes during playback * Overhaul alignment for playback frame values (view manager now always refers to reference-timeline values, only the play source deals in playback model timeline values) * When making a selection, ensure the selection regions shown in other panes (and used for playback constraints if appropriate) are aligned correctly. This may be the coolest feature ever implemented in any program ever.
author Chris Cannam
date Thu, 22 Nov 2007 14:17:19 +0000
parents 226cb289bdf4
children 25e72328a897 0895517bb2d1
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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 "PropertyStack.h"
#include "PropertyBox.h"
#include "base/PropertyContainer.h"
#include "view/View.h"
#include "layer/Layer.h"
#include "layer/LayerFactory.h"
#include "widgets/NotifyingTabBar.h"
#include "widgets/IconLoader.h"

#include <QIcon>
#include <QTabWidget>

#include <iostream>

//#define DEBUG_PROPERTY_STACK 1

PropertyStack::PropertyStack(QWidget *parent, View *client) :
    QTabWidget(parent),
    m_client(client)
{
    NotifyingTabBar *bar = new NotifyingTabBar();
    bar->setDrawBase(false);

    connect(bar, SIGNAL(mouseEntered()), this, SLOT(mouseEnteredTabBar()));
    connect(bar, SIGNAL(mouseLeft()), this, SLOT(mouseLeftTabBar()));
    connect(bar, SIGNAL(activeTabClicked()), this, SLOT(activeTabClicked()));

    setTabBar(bar);

#if (QT_VERSION >= 0x0402)
    setElideMode(Qt::ElideNone); 
    tabBar()->setUsesScrollButtons(true); 
    tabBar()->setIconSize(QSize(16, 16));
#endif
    
    repopulate();

    connect(this, SIGNAL(currentChanged(int)),
	    this, SLOT(selectedContainerChanged(int)));

    connect(m_client, SIGNAL(propertyContainerAdded(PropertyContainer *)),
	    this, SLOT(propertyContainerAdded(PropertyContainer *)));

    connect(m_client, SIGNAL(propertyContainerRemoved(PropertyContainer *)),
	    this, SLOT(propertyContainerRemoved(PropertyContainer *)));

    connect(m_client, SIGNAL(propertyContainerPropertyChanged(PropertyContainer *)),
	    this, SLOT(propertyContainerPropertyChanged(PropertyContainer *)));

    connect(m_client, SIGNAL(propertyContainerPropertyRangeChanged(PropertyContainer *)),
	    this, SLOT(propertyContainerPropertyRangeChanged(PropertyContainer *)));

    connect(m_client, SIGNAL(propertyContainerNameChanged(PropertyContainer *)),
	    this, SLOT(propertyContainerNameChanged(PropertyContainer *)));

    connect(this, SIGNAL(propertyContainerSelected(View *, PropertyContainer *)),
	    m_client, SLOT(propertyContainerSelected(View *, PropertyContainer *)));
}

void
PropertyStack::repopulate()
{
    blockSignals(true);

#ifdef DEBUG_PROPERTY_STACK
    std::cerr << "PropertyStack::repopulate" << std::endl;
#endif
    
    while (count() > 0) {
	removeTab(0);
    }
    for (size_t i = 0; i < m_boxes.size(); ++i) {
	delete m_boxes[i];
    }
    m_boxes.clear();
    
    for (size_t i = 0; i < m_client->getPropertyContainerCount(); ++i) {

	PropertyContainer *container = m_client->getPropertyContainer(i);
	QString name = container->getPropertyContainerName();
	
	PropertyBox *box = new PropertyBox(container);

	connect(box, SIGNAL(showLayer(bool)), this, SLOT(showLayer(bool)));
        connect(box, SIGNAL(contextHelpChanged(const QString &)),
                this, SIGNAL(contextHelpChanged(const QString &)));

        Layer *layer = dynamic_cast<Layer *>(container);
        if (layer) {
            box->layerVisibilityChanged(!layer->isLayerDormant(m_client));
        }

        QString shortName = name;

        if (layer) {
            shortName = LayerFactory::getInstance()->getLayerPresentationName
                (LayerFactory::getInstance()->getLayerType(layer));
        }

        shortName = QString("&%1 %2").arg(i + 1).arg(shortName);

#ifdef Q_WS_MAC

        // Qt 4.2 on OS/X doesn't show the icons in the tab bar, and
        // I'm not sure why -- use labels instead

        addTab(box, shortName);
        
#else

        // Icons on other platforms

	QString iconName = container->getPropertyContainerIconName();

        QIcon icon(IconLoader().load(iconName));
	if (icon.isNull()) {
	    addTab(box, shortName);
	} else {
	    addTab(box, icon, QString("&%1").arg(i + 1));
	    setTabToolTip(i, name);
	}

#endif

	m_boxes.push_back(box);
    }    

    blockSignals(false);
}

bool
PropertyStack::containsContainer(PropertyContainer *pc) const
{
    for (size_t i = 0; i < m_client->getPropertyContainerCount(); ++i) {
	PropertyContainer *container = m_client->getPropertyContainer(i);
	if (pc == container) return true;
    }

    return false;
}

int
PropertyStack::getContainerIndex(PropertyContainer *pc) const
{
    for (size_t i = 0; i < m_client->getPropertyContainerCount(); ++i) {
	PropertyContainer *container = m_client->getPropertyContainer(i);
	if (pc == container) return i;
    }

    return false;
}

void
PropertyStack::propertyContainerAdded(PropertyContainer *)
{
    if (sender() != m_client) return;
    repopulate();
}

void
PropertyStack::propertyContainerRemoved(PropertyContainer *)
{
    if (sender() != m_client) return;
    repopulate();
}

void
PropertyStack::propertyContainerPropertyChanged(PropertyContainer *pc)
{
    Layer *layer = dynamic_cast<Layer *>(pc);
    for (unsigned int i = 0; i < m_boxes.size(); ++i) {
	if (pc == m_boxes[i]->getContainer()) {
	    m_boxes[i]->propertyContainerPropertyChanged(pc);
            if (layer) {
                m_boxes[i]->layerVisibilityChanged
                    (!layer->isLayerDormant(m_client));
            }
	}
    }
}

void
PropertyStack::propertyContainerPropertyRangeChanged(PropertyContainer *pc)
{
    for (unsigned int i = 0; i < m_boxes.size(); ++i) {
	if (pc == m_boxes[i]->getContainer()) {
	    m_boxes[i]->propertyContainerPropertyRangeChanged(pc);
	}
    }
}

void
PropertyStack::propertyContainerNameChanged(PropertyContainer *)
{
    if (sender() != m_client) return;
    repopulate();
}

void
PropertyStack::showLayer(bool show)
{
    QObject *obj = sender();
    
    for (unsigned int i = 0; i < m_boxes.size(); ++i) {
	if (obj == m_boxes[i]) {
	    Layer *layer = dynamic_cast<Layer *>(m_boxes[i]->getContainer());
	    if (layer) {
		layer->showLayer(m_client, show);
		return;
	    }
	}
    }
}

void
PropertyStack::selectedContainerChanged(int n)
{
    if (n >= int(m_boxes.size())) return;
    emit propertyContainerSelected(m_client, m_boxes[n]->getContainer());
}

void
PropertyStack::mouseEnteredTabBar()
{
    emit contextHelpChanged(tr("Click to change the current active layer"));
}

void
PropertyStack::mouseLeftTabBar()
{
    emit contextHelpChanged("");
}

void
PropertyStack::activeTabClicked()
{
    emit viewSelected(m_client);
}