Method selectImage

src/ImageViewer.cpp:1824–1926

}

void ImageViewer::selectImage(const shared_ptr<Image>& image, bool stopPlayback) {
    // Once the selected image has been updated, reflect that in the image info window.
    const auto imageInfoGuard = ScopeGuard{[this]() {
        if (mImageInfoWindow) {
            updateImageInfoWindow();
        }
    }};

    if (stopPlayback) {
        mPlayButton->set_pushed(false);
    }

    for (auto button : mCurrentImageButtons) {
        button->set_enabled(image != nullptr);
    }

    if (!image) {
        auto& buttons = mImageButtonContainer->children();
        for (size_t i = 0; i < buttons.size(); ++i) {
            dynamic_cast<ImageButton*>(buttons[i])->setIsSelected(false);
        }

        mCurrentImage = nullptr;
        mImageCanvas->setImage(nullptr);

        // Clear group buttons
        while (mGroupButtonContainer->child_count() > 0) {
            mGroupButtonContainer->remove_child_at(mGroupButtonContainer->child_count() - 1);
        }

        setImageWhiteLevel(DEFAULT_IMAGE_WHITE_LEVEL);

        requestLayoutUpdate();
        return;
    }

    const auto id = imageId(image).value_or(0);

    // Don't do anything if the image that wants to be selected is not visible.
    if (!mImageButtonContainer->child_at((int)id)->visible()) {
        return;
    }

    auto& buttons = mImageButtonContainer->children();
    for (size_t i = 0; i < buttons.size(); ++i) {
        dynamic_cast<ImageButton*>(buttons[i])->setIsSelected(i == id);
    }

    mCurrentImage = image;
    mImageCanvas->setImage(mCurrentImage);

    setImageWhiteLevel(mCurrentImage->whiteLevel());

    // Clear group buttons
    while (mGroupButtonContainer->child_count() > 0) {
        mGroupButtonContainer->remove_child_at(mGroupButtonContainer->child_count() - 1);
    }