QProgressBar上传问题

发布于 2024-08-27 03:14:58 字数 683 浏览 3 评论 0原文

我首先展示我的代码，然后解释我的问题：

...
// somewhere in the constructor
    progressBar = new QProgressBar(this);
    progressBar->setMinimum(0);
    progressBar->setMaximum(100);
...
    connect(&http, SIGNAL(dataSendProgress(int, int)), this, SLOT(updateProgressBar(int, int)));
...
void MainWindow::updateProgressBar(int bytesSent, int total)
{
        progressBar->setMaximum(total);
        progressBar->setValue(bytesSent);
}

这就是我在上传文件时尝试更新进度条的方法。问题是，它不会完成这项工作。当它开始上传时，我将进度条的值设置为0，然后（感谢这个槽）它实际上不会显示进度，而是立即跳到100％（甚至在完成上传之前）。

我已经检查了 HTTP 客户端示例，并复制了进度条部分，它用于下载，或多或少与上传相同，但它使用 dataReadProgress 信号（下载所需）并且它有效 完美。
有谁知道如何解决上传这个问题吗？

原文

I show my code first, then I explain my problem:

...
// somewhere in the constructor
    progressBar = new QProgressBar(this);
    progressBar->setMinimum(0);
    progressBar->setMaximum(100);
...
    connect(&http, SIGNAL(dataSendProgress(int, int)), this, SLOT(updateProgressBar(int, int)));
...
void MainWindow::updateProgressBar(int bytesSent, int total)
{
        progressBar->setMaximum(total);
        progressBar->setValue(bytesSent);
}

So this is how I try to make my progressBar being updated when I upload a file. The problem is, it won't do the job. When it starts uploading, I set the value of the progress bar to 0, then (thanks to this slot) it won't actually show the progress, but will jump to 100% immediately (even before it finished uploading).

I already checked the HTTP Client example, and copied the progress bar part, it is for downloading, and more or less is the same as for uploading but it uses the dataReadProgress signal (needed for downloading) AND it works perfectly.
Does anybody know how to solve this for uploading?

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