Mercurial > hg > svgui
view widgets/LevelPanToolButton.cpp @ 1363:bbeffb29bf09
Fix inconsistency between centre frame actually set and centre frame notified as set, which caused the start frame location to creep out of place gradually as you page through
author | Chris Cannam |
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date | Tue, 30 Oct 2018 14:00:20 +0000 |
parents | 1589bc7528b7 |
children | 27ea5d61b402 |
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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 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 <QMouseEvent> #include <QStylePainter> #include <QStyleOptionToolButton> #include "base/Debug.h" #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); setToolTip(tr("Click to adjust level and pan")); setImageSize(m_pixels); setBigImageSize(m_pixelsBig); } LevelPanToolButton::~LevelPanToolButton() { } void LevelPanToolButton::mousePressEvent(QMouseEvent *e) { if (e->button() == Qt::MidButton || ((e->button() == Qt::LeftButton) && (e->modifiers() & Qt::ControlModifier))) { m_lpw->setToDefault(); e->accept(); } else { QToolButton::mousePressEvent(e); } } void LevelPanToolButton::wheelEvent(QWheelEvent *e) { m_lpw->wheelEvent(e); } 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::setMonitoringLevels(float left, float right) { m_lpw->setMonitoringLevels(left, right); 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() { 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); } void LevelPanToolButton::enterEvent(QEvent *e) { QToolButton::enterEvent(e); emit mouseEntered(); } void LevelPanToolButton::leaveEvent(QEvent *e) { QToolButton::enterEvent(e); emit mouseLeft(); }