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该项目为Echart图表JS交互之炫酷的仪表盘#xff0c;可以用鼠标实时改变仪表盘的读数。 下面为demo演示#xff1a;
该项目部分代码如下#xff1a;
#include widget.h
#include ui_widget.h
#include qurl.h可以用鼠标实时改变仪表盘的读数。 下面为demo演示
该项目部分代码如下
#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
#endifWidget::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 webkitQWebSettings *webSetting QWebSettings::globalSettings();webSetting-setAttribute(QWebSettings::JavascriptEnabled, true);webSetting-setAttribute(QWebSettings::PluginsEnabled, true);webSetting-setAttribute(QWebSettings::JavascriptCanOpenWindows, true);
#elif webengineQWebEngineSettings *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 webkitfor (int i 0; i 4; i) {QWebView *webView new QWebView;webView-setStyleSheet(QString(background:%1;).arg(rgba(255,0,0,0)));webViews webView;}
#elif webenginefor (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 webkitforeach (QWebView *webView, webViews) {webView-load(url);}
#elif webengineforeach (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 webkitforeach (QWebView *webView, webViews) {webView-page()-mainFrame()-evaluateJavaScript(js);}
#elif webengineforeach (QWebEngineView *webView, webViews) {webView-page()-runJavaScript(js);}
#endif
}
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