musicremotewidgetforsquare.cpp

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#include "musicremotewidgetforsquare.h"

#include <QGraphicsOpacityEffect>

MusicRemoteWidgetForSquare::MusicRemoteWidgetForSquare(QWidget *parent)
    : MusicRemoteWidget(parent),
      m_interval(0.0f)
{
    setGeometry(200, 200, 100, 100);
    adjustPosition(this);

    QGridLayout* grid = new QGridLayout(this);
    for(int i = 0; i < 3; ++i)
    {
        grid->setRowMinimumHeight(i, 30);
        grid->setRowStretch(i, 1);
    }

    for(int i = 0; i < 3; ++i)
    {
        grid->setColumnMinimumWidth(i, 30);
        grid->setColumnStretch(i, 1);
    }
    m_mainWidget->setFixedSize(70, 70);

    grid->addWidget(m_playButton, 0, 1, Qt::AlignCenter);
    grid->addWidget(m_preSongButton, 1, 0, Qt::AlignCenter);
    grid->addWidget(m_nextSongButton, 1, 2, Qt::AlignCenter);
    grid->addWidget(m_settingButton, 2, 1, Qt::AlignCenter);
    grid->addWidget(m_mainWidget, 1, 1, Qt::AlignCenter);

    QVBoxLayout *mainWidgetLayout = new QVBoxLayout(m_mainWidget);
    mainWidgetLayout->setContentsMargins(0, 0, 0, 0);
    mainWidgetLayout->setSpacing(0);
    mainWidgetLayout->addWidget(m_showMainWindowButton);
    mainWidgetLayout->setAlignment(m_showMainWindowButton, Qt::AlignCenter);
    mainWidgetLayout->addWidget(m_volumeWidget);

    for(int i = 0; i < 4; ++i)
    {
        m_effect[i] = new QGraphicsOpacityEffect(this);
        m_effect[i]->setOpacity(m_interval);
    }

    connect(&m_enterTimer, SIGNAL(timeout()), SLOT(enterTimeout()));
    connect(&m_leaveTimer, SIGNAL(timeout()), SLOT(leaveTimeout()));
}

MusicRemoteWidgetForSquare::~MusicRemoteWidgetForSquare()
{
    for(int i = 0; i < 4; ++i)
    {
        delete m_effect[i];
    }
}

void MusicRemoteWidgetForSquare::enterEvent(QtEnterEvent *event)
{
    QWidget::enterEvent(event);
    m_leaveTimer.stop();
    m_enterTimer.start(30);
}

void MusicRemoteWidgetForSquare::leaveEvent(QEvent *event)
{
    QWidget::leaveEvent(event);
    m_enterTimer.stop();
    m_leaveTimer.start(30);
}

void MusicRemoteWidgetForSquare::enterTimeout()
{
    m_interval += 0.1f;
    for(int i = 0; i < 4; ++i)
    {
        m_effect[i]->setOpacity(m_interval);
    }
    m_preSongButton->setGraphicsEffect(m_effect[0]);
    m_nextSongButton->setGraphicsEffect(m_effect[1]);
    m_playButton->setGraphicsEffect(m_effect[2]);
    m_settingButton->setGraphicsEffect(m_effect[3]);
}

void MusicRemoteWidgetForSquare::leaveTimeout()
{
    m_interval -= 0.1f;
    for(int i = 0; i < 4; ++i)
    {
        m_effect[i]->setOpacity(m_interval);
    }
    m_preSongButton->setGraphicsEffect(m_effect[0]);
    m_nextSongButton->setGraphicsEffect(m_effect[1]);
    m_playButton->setGraphicsEffect(m_effect[2]);
    m_settingButton->setGraphicsEffect(m_effect[3]);
}