projectmitem.cpp

#include "projectmitem.h"

ProjectMItem::ProjectMItem(QQuickItem* parent) : QQuickItem(parent) {
    setFlag(ItemHasContents, true);
}

QSGNode* ProjectMItem::updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData*) {
    auto* node = static_cast<ProjectMRenderNode*>(oldNode);

    if (!node) {
        node = new ProjectMRenderNode(x(), y(), width(), height());
    }
    else {
        const auto mapped = this->mapToScene(QPoint(x(), y()));
        node->setSize(width(), height());
        node->setPosition(mapped.x(), mapped.y());
    }

    return node;
}

void ProjectMItem::componentComplete() {
    QQuickItem::componentComplete();

    //update milkdrop's openGL scene together with qml's scene
    if (window()) {
        connect(window(), &QQuickWindow::frameSwapped, this, [this] {
            if (this->isVisible())
                this->update();
        });
    }
}