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如何在QT中覆盖2个图像

发布于 2025-02-04 06:09:52 字数 562 浏览 4 评论 0原文

我有2个我在qimage中加载的图像，我的问题是：如何以最简单的方式叠加这两个图像，然后将其保存在qpixmap中？

这是以下图像：

和已久的结果：

（最终图像将在qtableView中使用，以显示用户是否具有相同的药水）

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疯了 2025-02-11 06:09:52

经过更多的研究，我能够自己找到答案。
这是我想到的代码（如果您能做得更好，我想看它，因为如果有的话，我想实现任何更好的方法）：

    QPixmap base = QPixmap::fromImage(QImage("Your 1st img"));
    QPixmap overlay = QPixmap::fromImage(QImage("your 2nd img"));
    QPixmap result(base.width(), base.height());
    result.fill(Qt::transparent); // force alpha channel
    {
        QPainter painter(&result);
        painter.drawPixmap(0, 0, base);
        painter.drawPixmap(0, 0, overlay);
    }
    QStandardItem *pCombinedItem = new QStandardItem(); //this variable should be in the .h file if you want to conserve it further on.
    pCombinedItem->setData(QVariant(result), Qt::DecorationRole);//adding the final img into the StandardItem which we can put then into our table after we put it into a StandardItemModel like so :
    model->setItem(1,4,pCombinedItem);
    pInventory->setModel(model); //and we can put our model into our tableview

I was able to find the answer on my own after some more research.
Here is my code that I came up with (if you can do it better I would like to see it because I would like to implement any better approach if there is any):

    QPixmap base = QPixmap::fromImage(QImage("Your 1st img"));
    QPixmap overlay = QPixmap::fromImage(QImage("your 2nd img"));
    QPixmap result(base.width(), base.height());
    result.fill(Qt::transparent); // force alpha channel
    {
        QPainter painter(&result);
        painter.drawPixmap(0, 0, base);
        painter.drawPixmap(0, 0, overlay);
    }
    QStandardItem *pCombinedItem = new QStandardItem(); //this variable should be in the .h file if you want to conserve it further on.
    pCombinedItem->setData(QVariant(result), Qt::DecorationRole);//adding the final img into the StandardItem which we can put then into our table after we put it into a StandardItemModel like so :
    model->setItem(1,4,pCombinedItem);
    pInventory->setModel(model); //and we can put our model into our tableview

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