view widgets/LevelPanToolButton.cpp @ 1160:a429b2acb45d 3.0-integration

Make SVDEBUG always write to a log file -- formerly this was disabled in NDEBUG builds. I think there's little use to that, it just means that we keep adding more cerr debug output because we aren't getting the log we need. And SVDEBUG logging is not usually used in tight loops, I don't think the performance overhead is too serious.

Also update the About box.

/* -*- 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 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 "LevelPanToolButton.h"
#include "LevelPanWidget.h"

#include <QMenu>
#include <QWidgetAction>
#include <QImage>
#include <QStylePainter>
#include <QStyleOptionToolButton>

#include <iostream>
using std::cerr;
using std::endl;

LevelPanToolButton::LevelPanToolButton(QWidget *parent) :
    QToolButton(parent),
    m_pixels(32),
    m_pixelsBig(32 * 3),
    m_muted(false),
    m_savedLevel(1.f)
{
    m_lpw = new LevelPanWidget();

    connect(m_lpw, SIGNAL(levelChanged(float)), this, SIGNAL(levelChanged(float)));
    connect(m_lpw, SIGNAL(levelChanged(float)), this, SLOT(selfLevelChanged(float)));

    connect(m_lpw, SIGNAL(panChanged(float)), this, SIGNAL(panChanged(float)));
    connect(m_lpw, SIGNAL(panChanged(float)), this, SLOT(update()));

    connect(this, SIGNAL(clicked(bool)), this, SLOT(selfClicked()));
    
    QMenu *menu = new QMenu();
    QWidgetAction *wa = new QWidgetAction(menu);
    wa->setDefaultWidget(m_lpw);
    menu->addAction(wa);

    setPopupMode(InstantPopup);
    setMenu(menu);

    setImageSize(m_pixels);
    setBigImageSize(m_pixelsBig);
}

LevelPanToolButton::~LevelPanToolButton()
{
}

float
LevelPanToolButton::getLevel() const
{
    return m_lpw->getLevel();
}

float
LevelPanToolButton::getPan() const
{
    return m_lpw->getPan();
}

bool
LevelPanToolButton::includesMute() const
{
    return m_lpw->includesMute();
}

void
LevelPanToolButton::setImageSize(int pixels)
{
    m_pixels = pixels;

    QPixmap px(m_pixels, m_pixels);
    px.fill(Qt::transparent);
    setIcon(px);
}

void
LevelPanToolButton::setBigImageSize(int pixels)
{
    m_pixelsBig = pixels;

    m_lpw->setFixedWidth(m_pixelsBig);
    m_lpw->setFixedHeight(m_pixelsBig);
}

void
LevelPanToolButton::setLevel(float level)
{
    m_lpw->setLevel(level);
    update();
}

void
LevelPanToolButton::setPan(float pan)
{
    m_lpw->setPan(pan);
    update();
}

void
LevelPanToolButton::setIncludeMute(bool include)
{
    m_lpw->setIncludeMute(include);
    update();
}

void
LevelPanToolButton::setEnabled(bool enabled)
{
    m_lpw->setEnabled(enabled);
    QToolButton::setEnabled(enabled);
}

void
LevelPanToolButton::selfLevelChanged(float level)
{
    if (level > 0.f) {
	m_muted = false;
    } else {
	m_muted = true;
	m_savedLevel = 1.f;
    }
    update();
}

void
LevelPanToolButton::selfClicked()
{
    cerr << "selfClicked" << endl;
    
    if (m_muted) {
	m_muted = false;
	m_lpw->setLevel(m_savedLevel);
	emit levelChanged(m_savedLevel);
    } else {
	m_savedLevel = m_lpw->getLevel();
	m_muted = true;
	m_lpw->setLevel(0.f);
	emit levelChanged(0.f);
    }
    update();
}

void
LevelPanToolButton::paintEvent(QPaintEvent *)
{
    QStylePainter p(this);
    QStyleOptionToolButton opt;
    initStyleOption(&opt);
    opt.features &= (~QStyleOptionToolButton::HasMenu);
    p.drawComplexControl(QStyle::CC_ToolButton, opt);
    
    if (m_pixels >= height()) {
        setImageSize(height()-1);
    }
    
    double margin = (double(height()) - m_pixels) / 2.0;
    m_lpw->renderTo(this, QRectF(margin, margin, m_pixels, m_pixels), false);
}