61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
#include <qwidget.h>
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#include <qpainter.h>
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#include <Qlabel>
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#include <opencv.hpp>
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static QPixmap cvMatToQPixmap(const cv::Mat& mat) {
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QImage qImg;
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if (mat.channels() == 3) {
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//cv::cvtColor(mat, mat, cv::COLOR_BGR2RGB);
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qImg = QImage(mat.data, mat.cols, mat.rows, mat.step, QImage::Format_RGB888);
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}
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else {
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qImg = QImage((const unsigned char*)(mat.data), mat.cols, mat.rows, mat.step, QImage::Format_Grayscale8);
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}
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return QPixmap::fromImage(qImg);
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}
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class loadingWidget : public QWidget {
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public:
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QLabel* sign;
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loadingWidget(QWidget* parent = nullptr) : QWidget(parent) {
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sign = new QLabel(this);
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}
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void setStatus(QWidget* widget) {
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screenshot_ = QPixmap::grabWindow(widget->winId());
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update(); // 更新widget以显示新的截图
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}
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protected:
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void paintEvent(QPaintEvent* event) override {
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if (screenshot_.isNull())
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return;
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QImage image = screenshot_.toImage();
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image = image.convertToFormat(QImage::Format_RGB888);
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cv::Mat originalMat = cv::Mat(
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image.height(),
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image.width(),
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CV_8UC3,
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image.bits(),
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image.bytesPerLine());
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cv::Mat blurredMat;
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cv::blur(originalMat, blurredMat, cv::Size(15, 15)); // 调整模糊半径以获得不同程度的模糊效果
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QPixmap blurredPixmap = cvMatToQPixmap(blurredMat);
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QPainter painter(this);
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painter.drawPixmap(0, 0, blurredPixmap);
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// 在模糊图片上绘制文字
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QPalette palette;
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palette.setColor(QPalette::WindowText, Qt::white);
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QFont font("微软雅黑", 100, QFont::Bold);
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QFont font2("微软雅黑", 90, QFont::Bold);
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painter.setFont(font);
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painter.setPen(Qt::black);
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painter.drawText(this->rect(), Qt::AlignCenter, "WAIT");
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painter.setFont(font2);
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painter.setPen(Qt::white);
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painter.drawText(this->rect(), Qt::AlignCenter, "WAIT");
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}
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private:
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QPixmap screenshot_;
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}; |