【Qt】多线程控制多个进度条

ruiwenz

于 2019-12-11 15:14:36 发布

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CC 4.0 BY-SA版权

分类专栏： C++ Qt 文章标签： Qt progressbar

本文链接：https://blog.youkuaiyun.com/R_W_zhang/article/details/103492743

一个线程控制一个进度条，通过信号和槽机制控制。

/*显示进度条的Class: ShowWidget.cpp*/

for(int i = 0; i < size; i++)
{
	//......
	
	
	progress_bars_.append(new QProgressBar(this));
	progress_bars_[i]->setMinimum(0);
	progress_bars_[i]->setMaximum(100);
	progress_bars_[i]->setValue(0);
	progress_bars_[i]->setFormat(QString("当前进度为：%1%").arg(0));

	progress_threads_.append(new QThread());
	update_percent_.append(new UpdatePercent(progress_bars_.at(i)));
	update_percent_.at(i)->moveToThread(progress_threads_.at(i));
	update_percent_.at(i)->setDir(data_path_);
	update_percent_.at(i)->setCarName(car_names_.at(i));
	connect(progress_threads_.at(i), SIGNAL(finished()), progress_threads_.at(i), SLOT(deleteLater()));
	connect(progress_threads_.at(i), SIGNAL(finished()), update_percent_.at(i), SLOT(deleteLater()));

    //此处为更新进度条的信号和槽连接
	connect(update_percent_.at(i), SIGNAL(getprogressvalue(QProgressBar *, int)), this, SLOT(setprogr