DynamicIconSupport.java 文件源码

/**
 * Adds support changing icons by selection.
 *
 * @param button the button.
 */
@FXThread
public static void addSupport(@NotNull final ToggleButton button) {

    final EditorConfig editorConfig = EditorConfig.getInstance();
    final CssColorTheme theme = editorConfig.getTheme();

    if (!theme.needRepaintIcons()) {
        return;
    }

    final ImageView graphic = (ImageView) button.getGraphic();
    final Image image = graphic.getImage();
    final Image original = FILE_ICON_MANAGER.getOriginal(image);

    final ObservableMap<Object, Object> properties = button.getProperties();
    properties.put(NOT_SELECTED_IMAGE, image);
    properties.put(SELECTED_IMAGE, original);

    button.selectedProperty().addListener((observable, oldValue, newValue) -> {
        if (newValue) {
            graphic.setImage((Image) properties.get(SELECTED_IMAGE));
        } else {
            graphic.setImage((Image) properties.get(NOT_SELECTED_IMAGE));
        }
    });

    if (button.isSelected()) {
        graphic.setImage(original);
    } else {
        graphic.setImage(image);
    }
}