DraggableTab.java 文件源码

private InsertData getInsertData(Point2D screenPoint) {
    for(TabPane tabPane : tabPanes) {
        Rectangle2D tabAbsolute = getAbsoluteRect(tabPane);
        if(tabAbsolute.contains(screenPoint)) {
            int tabInsertIndex = 0;
            if(!tabPane.getTabs().isEmpty()) {
                Rectangle2D firstTabRect = getAbsoluteRect(tabPane.getTabs().get(0));
                if(firstTabRect.getMaxY()+60 < screenPoint.getY() || firstTabRect.getMinY() > screenPoint.getY()) {
                    return null;
                }
                Rectangle2D lastTabRect = getAbsoluteRect(tabPane.getTabs().get(tabPane.getTabs().size() - 1));
                if(screenPoint.getX() < (firstTabRect.getMinX() + firstTabRect.getWidth() / 2)) {
                    tabInsertIndex = 0;
                }
                else if(screenPoint.getX() > (lastTabRect.getMaxX() - lastTabRect.getWidth() / 2)) {
                    tabInsertIndex = tabPane.getTabs().size();
                }
                else {
                    for(int i = 0; i < tabPane.getTabs().size() - 1; i++) {
                        Tab leftTab = tabPane.getTabs().get(i);
                        Tab rightTab = tabPane.getTabs().get(i + 1);
                        if(leftTab instanceof DraggableTab && rightTab instanceof DraggableTab) {
                            Rectangle2D leftTabRect = getAbsoluteRect(leftTab);
                            Rectangle2D rightTabRect = getAbsoluteRect(rightTab);
                            if(betweenX(leftTabRect, rightTabRect, screenPoint.getX())) {
                                tabInsertIndex = i + 1;
                                break;
                            }
                        }
                    }
                }
            }
            return new InsertData(tabInsertIndex, tabPane);
        }
    }
    return null;
}