北京做网站建设公司排名,济宁网站建设公司怎么样,企业目录,设计展厅的公司主界面为显示框#xff0c;两个下拉框#xff0c;一个是所有相机#xff0c;一个是相机支持的分辨率 系统根据UI界面自动生成的部分不再描述#xff0c;以下为其他部分源码
widget.h
#include QWidget
#include QMouseEvent
class QCamera;
class QCamer…主界面为显示框两个下拉框一个是所有相机一个是相机支持的分辨率 系统根据UI界面自动生成的部分不再描述以下为其他部分源码
widget.h
#include QWidget
#include QMouseEvent
class QCamera;
class QCameraViewfinder;
class QCameraImageCapture;
class QCameraInfo;
class QCameraViewfinderSettings;namespace Ui {
class Widget;
}class Widget : public QWidget
{Q_OBJECTpublic:explicit Widget(QWidget *parent 0);~Widget();private:Ui::Widget *ui;QCamera *camera; //相机QCameraViewfinder *viewfinder; //取景器QListQCameraInfo cameras; //相机列表QListQSize mResSize {}; //分辨率列表
};
main.cpp
#include widget.h
#include QApplicationint main(int argc, char *argv[])
{QApplication a(argc, argv);Widget w;w.show();return a.exec();
}
widget.cpp
#include widget.h
#include ui_widget.h
#include QCamera
#include QCameraInfo
#include QCameraViewfinder
#include QCameraImageCapture
#include QList
#include QFileDialog
#include QDebugWidget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget)
{ui-setupUi(this);cameras QCameraInfo::availableCameras();if(cameras.count() 0) {camera new QCamera(cameras.at(0));}viewfinder new QCameraViewfinder(this);camera-setViewfinder(viewfinder);viewfinder-resize(600, 350);camera-start();//添加初始化的相机选项for(const QCameraInfo cameraInfo:cameras) {ui-comboBox_cam-addItem(cameraInfo.description());}ui-comboBox_cam-setCurrentIndex(0);//添加初始化相机的分辨率选项mResSize camera-supportedViewfinderResolutions();for (const QSize msize:mResSize) {ui-comboBox_format-addItem(QString::number(msize.width(), 10) * QString::number(msize.height(), 10));}ui-comboBox_format-setCurrentIndex(0);QCameraViewfinderSettings init;init.setResolution(mResSize[0]);camera-setViewfinderSettings(init);connect(ui-comboBox_cam,QOverloadint::of(QComboBox::activated),[](int index){camera-stop();delete camera;cameranew QCamera(cameras[index]);camera-setViewfinder(viewfinder); //设置取景器camera-start();//删除前相机的所有分辨率内容for (int i 0; i mResSize.size(); i) {ui-comboBox_format-removeItem(0);}mResSize.clear();mResSize camera-supportedViewfinderResolutions();for (const QSize msize:mResSize) {ui-comboBox_format-addItem(QString::number(msize.width(), 10) * QString::number(msize.height(), 10));}ui-comboBox_format-setCurrentIndex(0);QCameraViewfinderSettings reset;reset.setResolution(mResSize[0]);camera-setViewfinderSettings(reset);});connect(ui-comboBox_format, QOverloadint::of(QComboBox::activated), [](int index){//重新设置摄像头参数QCameraViewfinderSettings reset;reset.setResolution(mResSize[index]);camera-setViewfinderSettings(reset);});}
Widget::~Widget()
{delete ui;
}
运行效果图
