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QT圓形圖像剪切功能實現
宸宸2024-03-16【C++】250人已圍觀
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qt圖像剪切
剪切代碼:
Rectangle{
id:idRectRound
width: 250
height: 250
radius: width/2
anchors.centerIn: parent
color: "#ff00ff"
visible: false
}
Image {
id: idRectImg
width: 250
height: 250
anchors.centerIn: parent
source: "qrc:/res/demo.png"
visible: false
smooth: true
}
OpacityMask {
anchors.fill: idRectRound
source: idRectImg
maskSource: idRectRound
}完整QML源碼
import QtQuick 2.12
import QtQuick.Window 2.12
import QtGraphicalEffects 1.0
Window {
width: 640
height: 480
visible: true
title: qsTr("Hello World")
color:"black"
Rectangle{
id:idRectRound
width: 250
height: 250
radius: width/2
anchors.centerIn: parent
color: "#ff00ff"
visible: false
border.color: "yellow"
border.width: 2
}
Image {
id: idRectImg
anchors.centerIn: parent
source: "qrc:/res/demo.png"
visible: false
smooth: true
}
OpacityMask {
anchors.fill: idRectRound
source: idRectImg
maskSource: idRectRound
}
}C++代碼:
#include#include int main(int argc, char *argv[]) { #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling); #endif QGuiApplication app(argc, argv); QQmlApplicationEngine engine; const QUrl url(QStringLiteral("qrc:/main.qml")); QObject::connect(&engine, &QQmlApplicationEngine::objectCreated, &app, [url](QObject *obj, const QUrl &objUrl) { if (!obj && url == objUrl) QCoreApplication::exit(-1); }, Qt::QueuedConnection); engine.load(url); return app.exec(); }
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