Method insertImage

src/ImageViewer.cpp:1557–1602

}

void ImageViewer::insertImage(shared_ptr<Image> image, size_t index, bool shallSelect) {
    if (!image) {
        throw invalid_argument{"Image may not be null."};
    }

    if (mDragType == EMouseDragType::ImageButtonDrag && index <= mDraggedImageButtonId) {
        ++mDraggedImageButtonId;
    }

    auto button = new ImageButton{nullptr, image->name(), true};
    button->set_font_size(15);
    button->setId(index + 1);
    button->set_tooltip(image->toString());

    button->setSelectedCallback([this, image]() { selectImage(image); });

    button->setReferenceCallback([this, image](bool isReference) {
        if (!isReference) {
            selectReference(nullptr);
        } else {
            selectReference(image);
        }
    });

    button->setCaptionChangeCallback([this]() { mRequiresFilterUpdate = true; });

    mImageButtonContainer->add_child((int)index, button);
    mImages.insert(begin(mImages) + index, image);

    mShouldFooterBeVisible |= image->channelGroups().size() > 1;
    // The following call will make sure the footer becomes visible if the previous line enabled it.
    setUiVisible(isUiVisible());

    // Ensure the new image button will have the correct visibility state.
    setFilter(mFilter->value());

    requestLayoutUpdate();

    // First image got added, let's select it.
    if ((index == 0 && mImages.size() == 1) || shallSelect) {
        selectImage(image);
        if (!isMaximized() && resizeWindowToFitImageOnLoad()) {
            resizeToFit(sizeToFitImage(image));
        }
    }
}

void ImageViewer::moveImageInList(size_t oldIndex, size_t newIndex) {
    if (oldIndex == newIndex) {