将鼠标悬停在树的整行上

问：

我有一个 swt 树，我为其添加了 SWT。EraseItem 侦听器为了获取选择，将鼠标悬停在树项的颜色上。选择，悬停颜色显示正确，但该颜色仅应用于文本。我希望它应用于整行。

截图供您参考：

tree.addListener(SWT.EraseItem, new Listener() {

        @Override
        public void handleEvent(Event event) {
            if ((event.detail & SWT.SELECTED) != 0 && (event.detail & SWT.MouseHover) != 0) {

                int width = getBounds().width;
                GC gc = event.gc;
                gc.setForeground(new Color(Display.getCurrent(), 0, 0, 0));
                gc.setBackground(new Color(Display.getCurrent(), 213, 215, 219));
                gc.fillRectangle(0, event.y, width, event.height);

                event.detail &= ~SWT.MouseHover;
                event.detail &= ~SWT.SELECTED;
            }
            if ((event.detail & SWT.SELECTED) != 0 && !tree.isFocusControl()) {
                int width = tree.getClientArea().width;
                GC gc = event.gc;
                gc.setForeground(new Color(Display.getCurrent(), 0, 0, 0));
                gc.setBackground(new Color(Display.getCurrent(), 230, 232, 235));
                gc.fillRectangle(0, event.y, width, event.height);
                event.detail &= ~SWT.SELECTED;
            }
            if ((event.detail & SWT.MouseHover) != 0) {
                int width = tree.getClientArea().width;
                GC gc = event.gc;
                gc.setForeground(new Color(Display.getCurrent(), 0, 0, 0));
                gc.setBackground(new Color(Display.getCurrent(), 213, 215, 219));
                gc.fillRectangle(0, event.y, width, event.height);
                event.detail &= ~SWT.MouseHover;
            }

            if ((event.detail & SWT.SELECTED) != 0) {
                int width = tree.getClientArea().width;
                GC gc = event.gc;
                gc.setForeground(new Color(Display.getCurrent(), 0, 0, 0));
                gc.setBackground(new Color(Display.getCurrent(), 192, 235, 237));
                gc.fillRectangle(0, event.y, width, event.height);
                event.detail &= ~SWT.SELECTED;
            }

            Color previousForegroundColor = event.gc.getForeground();
            event.gc.setForeground(previousForegroundColor);
        }
    });