cplayer/CPlayer/Player/PlayerWidget.cpp

#include "PlayerWidget.h"

#include <QResizeEvent>


PlayerWidget::PlayerWidget(QWidget *parent)
{
    m_windowSize = QSize(0, 0);
}

PlayerWidget::~PlayerWidget()
{

}

/* 刷新一帧 */
void PlayerWidget::updateFrame(Image_YUV420& image)
{
    m_image = image;
    if(m_windowSize.width() == 0 || m_windowSize.height() == 0)
    {
        m_windowSize.setWidth(image.width);
        m_windowSize.setHeight(image.height);
    }
    update();
}


/* 绘画事件 */
void PlayerWidget::paintEvent(QPaintEvent *event)
{

    // SPDLOG_TRACE("开始绘制画面...");
    /* 对图像进行缩放 */
    if(m_windowSize.width() != m_image.width || m_windowSize.height() != m_image.height)
    {
        m_image = m_image.scaled(m_windowSize.width(), m_windowSize.height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
    }
    QPainter painter(this);
    painter.drawImage(0, 0, *m_image);
}

/* 重新设置大小事件 */
void PlayerWidget::resizeEvent(QResizeEvent *event)
{
    m_windowSize.setWidth(event->size().width());
    m_windowSize.setHeight(event->size().height());

    QWidget::resizeEvent(event);
}