77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
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#include "BackgroundWidget.h"
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#include "MainWindow.h"
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#include <QApplication>
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#include <QDir>
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#include <QHBoxLayout>
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#include <QResizeEvent>
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#include <QPaintEvent>
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#include <QPainter>
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BackgroundWidget::BackgroundWidget(QWidget *parent) : MovieWidget(parent) {
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InitImages();
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//m_display = new QLabel(this);
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//QHBoxLayout* layout = new QHBoxLayout(this); // 创建水平布局管理器
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//layout->addWidget(m_display); // 将标签添加到布局中
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//layout->setContentsMargins(0, 0, 0, 0);
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//m_display->setAlignment(Qt::AlignCenter);
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}
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void BackgroundWidget::OnTimeout() {
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if (m_pixmapPaths.isEmpty()) {
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return;
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}
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if (m_pixmaps.count() < m_pixmapPaths.count()) {
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QPixmap pixmap(m_pixmapPaths[m_current]); // 获取文件的绝对路径
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const QPixmap& px = m_pixmaps.emplace_back(std::move(pixmap));
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if (width() != px.width()) {
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MainWindow::Get().setGeometry(0, 30, px.width(), height());
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}
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}
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m_current = (m_current + 1) % m_pixmaps.size();
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update();
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//m_display->setPixmap(m_pixmaps[m_current]);
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//label.setPixmap(pixmap.scaled(label.size(), Qt::KeepAspectRatio));
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}
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void BackgroundWidget::InitImages() {
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const QString imageDir = QApplication::applicationDirPath() + "/ProjectDisplay/background";
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QStringList jpgFiles;
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QDir dir(imageDir);
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QStringList filters;
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filters << "*.jpg"; // 添加 JPG 的文件扩展名
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QFileInfoList fileInfoList = dir.entryInfoList(filters, QDir::Files); // 使用过滤器获取文件列表
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foreach(const QFileInfo & fileInfo, fileInfoList) {
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m_pixmapPaths.append(fileInfo.absoluteFilePath());
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}
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}
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void BackgroundWidget::resizeEvent(QResizeEvent* event) {
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MovieWidget::resizeEvent(event);
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//m_display->setPixmap(label.pixmap()->scaled(label.size(), Qt::KeepAspectRatio)); // 图片大小适应标签大
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}
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void BackgroundWidget::paintEvent(QPaintEvent* evnet) {
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if (m_pixmaps.isEmpty()) {
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return;
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}
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int imageHeight = m_pixmaps[m_current].height();
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int y = fabs(height() - imageHeight) * 0.5;
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QPainter painter(this);
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painter.drawPixmap(0, y, m_pixmaps[m_current]);
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}
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