#include "widget.h" #include "ui_widget.h" #include "qurl.h" #ifdef webkit #include <QtWebKit> #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) #include <QtWebKitWidgets> #endif #elif webengine #include <QtWebEngineWidgets> #endif Widget::Widget(QWidget *parent) : QWidget(parent), ui(new Ui::Widget) { ui->setupUi(this); this->initForm(); } Widget::~Widget() { delete ui; } void Widget::initForm() { //初始化浏览器控件属性,一个项目中只需要设置一次就行 #ifdef webkit QWebSettings *webSetting = QWebSettings::globalSettings(); webSetting->setAttribute(QWebSettings::JavascriptEnabled, true); webSetting->setAttribute(QWebSettings::PluginsEnabled, true); webSetting->setAttribute(QWebSettings::JavascriptCanOpenWindows, true); #elif webengine QWebEngineSettings *webSetting = QWebEngineProfile::defaultProfile()->settings(); webSetting->setAttribute(QWebEngineSettings::JavascriptEnabled, true); webSetting->setAttribute(QWebEngineSettings::PluginsEnabled, true); webSetting->setAttribute(QWebEngineSettings::JavascriptCanOpenWindows, true); #endif //实例化多个浏览器控件,设置背景透明 #ifdef webkit for (int i = 0; i < 4; ++i) { QWebView *webView = new QWebView; webView->setStyleSheet(QString("background:%1;").arg("rgba(255,0,0,0)")); webViews << webView; } #elif webengine for (int i = 0; i < 4; ++i) { QWebEngineView *webView = new QWebEngineView; webView->page()->setBackgroundColor(Qt::transparent); webViews << webView; } #endif //添加到布局 #if (defined webkit) || (defined webengine) ui->gridLayout->addWidget(webViews.at(0), 0, 0); ui->gridLayout->addWidget(webViews.at(1), 0, 1); ui->gridLayout->addWidget(webViews.at(2), 1, 0); ui->gridLayout->addWidget(webViews.at(3), 1, 1); #endif //加载html文件 QUrl url("file:///" + qApp->applicationDirPath() + "/gauge.html"); #ifdef webkit foreach (QWebView *webView, webViews) { webView->load(url); } #elif webengine foreach (QWebEngineView *webView, webViews) { webView->load(url); } #endif } void Widget::on_horizontalSlider_valueChanged(int value) { //执行js函数 QString js = QString("setGaugeValue(%1)").arg(value); #ifdef webkit foreach (QWebView *webView, webViews) { webView->page()->mainFrame()->evaluateJavaScript(js); } #elif webengine foreach (QWebEngineView *webView, webViews) { webView->page()->runJavaScript(js); } #endif }