98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
#pragma execution_character_set("utf-8")
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#include "frmbase64helper.h"
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#include "ui_frmbase64helper.h"
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#include "base64helper.h"
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#include "qfiledialog.h"
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#include "qelapsedtimer.h"
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#include "qdebug.h"
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frmBase64Helper::frmBase64Helper(QWidget *parent) : QWidget(parent), ui(new Ui::frmBase64Helper)
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{
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ui->setupUi(this);
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}
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frmBase64Helper::~frmBase64Helper()
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{
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delete ui;
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}
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void frmBase64Helper::on_btnOpen_clicked()
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{
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QString fileName = QFileDialog::getOpenFileName(this, "选择文件", "", "图片(*.png *.bmp *.jpg)");
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if (!fileName.isEmpty()) {
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ui->txtFile->setText(fileName);
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QPixmap pix(fileName);
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pix = pix.scaled(ui->labImage->size() - QSize(4, 4), Qt::KeepAspectRatio);
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ui->labImage->setPixmap(pix);
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}
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}
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void frmBase64Helper::on_btnClear_clicked()
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{
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ui->txtFile->clear();
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ui->txtText->clear();
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ui->txtBase64->clear();
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ui->labImage->clear();
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}
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void frmBase64Helper::on_btnImageToBase64_clicked()
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{
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//计时
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QElapsedTimer time;
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time.start();
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QString fileName = ui->txtFile->text().trimmed();
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if (!fileName.isEmpty()) {
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ui->txtBase64->setText(Base64Helper::imageToBase64(QImage(fileName)));
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}
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//统计用时
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#if (QT_VERSION >= QT_VERSION_CHECK(4,8,0))
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double elapsed = (double)time.nsecsElapsed() / 1000000;
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#else
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double elapsed = (double)time.elapsed();
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#endif
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QString strTime = QString::number(elapsed, 'f', 3);
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ui->labInfo->setText(QString("图片转base64 用时 %1 毫秒").arg(strTime));
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}
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void frmBase64Helper::on_btnBase64ToImage_clicked()
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{
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//计时
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QElapsedTimer time;
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time.start();
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QString text = ui->txtBase64->toPlainText().trimmed();
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if (!text.isEmpty()) {
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QPixmap pix = QPixmap::fromImage(Base64Helper::base64ToImage(text));
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pix = pix.scaled(ui->labImage->size() - QSize(4, 4), Qt::KeepAspectRatio);
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ui->labImage->setPixmap(pix);
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}
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//统计用时
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#if (QT_VERSION >= QT_VERSION_CHECK(4,8,0))
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double elapsed = (double)time.nsecsElapsed() / 1000000;
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#else
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double elapsed = (double)time.elapsed();
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#endif
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QString strTime = QString::number(elapsed, 'f', 3);
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ui->labInfo->setText(QString("base64转图片 用时 %1 毫秒").arg(strTime));
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}
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void frmBase64Helper::on_btnTextToBase64_clicked()
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{
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QString text = ui->txtText->text().trimmed();
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if (!text.isEmpty()) {
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ui->txtBase64->setText(Base64Helper::textToBase64(text));
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}
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}
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void frmBase64Helper::on_btnBase64ToText_clicked()
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{
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QString text = ui->txtBase64->toPlainText().trimmed();
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if (!text.isEmpty()) {
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ui->txtText->setText(Base64Helper::base64ToText(text));
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}
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}
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