PrintPreviewComponent.java 文件源码

public PrintPreviewComponent(RamusPrintable printable, int columnCount,
                             GUIFramework framework) {
    this.printable = printable;
    this.columnCount = columnCount;
    this.framework = framework;
    MouseWheelListener l = new MouseWheelListener() {

        @Override
        public void mouseWheelMoved(MouseWheelEvent e) {
            if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
                if (e.getModifiers() == KeyEvent.CTRL_MASK) {
                    double r = e.getWheelRotation();
                    double zoom = getZoom() - 0.2 * r;
                    setCurrentZoom(zoom);
                } else {
                    Rectangle rect = getVisibleRect();
                    scrollRectToVisible(new Rectangle(rect.x, rect.y
                            + e.getWheelRotation() * 150, rect.width,
                            rect.height));
                }
            }
        }
    };
    this.addMouseWheelListener(l);
    layout = Options.getInteger("PREVIW_LAYOUT", PREV_LAYOUT_GRID);
    SwingUtilities.invokeLater(new Runnable() {

        @Override
        public void run() {
            setCurrentZoom(Options.getDouble("PREV_ZOOM", 1d));
        }
    });
    setCurrentZoom(Options.getDouble("PREV_ZOOM", 1d));
}