OpenOffice API：将 Impress（演示）文档保存为独立文件

Question

当我使用“MS PowerPoint 97”过滤器保存时，GraphicObjectShape 对象中使用的图像文件只是链接，而不包含在文件中。

是否有此过滤器的属性或文档属性使 OOo 创建一个自包含文件（嵌入而不是链接的图像文件）？

编辑：

XLinkageSupport 对象有一个breakLink 函数。任何线索如何获得这些接口？

Answer 1

您可以通过com.sun.star.drawing.BitmapTable 对象将图像嵌入到OOo 文档中。以下函数将获取文档（其XMultiServiceFactory 接口）、一个指向您选择的图像文件的File 对象和一个必须唯一的 internalName，嵌入图像并返回指向嵌入实例的 URL。

/**
 * Embeds an image into the document and gets back the new URL.
 *
 * @param factory Factory interface of the document.
 * @param file Image file.
 * @param internalName Name of the image used inside the document.
 * @return URL of the embedded image.
 */
public static String embedLocalImage(XMultiServiceFactory factory, File localFile, String internalName) {

    // future return value
    String newURL = null;

    // URL of the file (note that BitmapTable expects URLs starting with
    // "file://" rather than just "file:". Also note that getRawPath() will
    // return an encoded URL (with special character in the form of %xx).
    String imageURL = "file://" + localFile.toURI().getRawPath();

    try {

        // get a BitmapTable object from the document (and get interface)
        Object bitmapTable = factory.createInstance("com.sun.star.drawing.BitmapTable");
        XNameContainer bitmapContainer = (XNameContainer)UnoRuntime.queryInterface(XNameContainer.class, bitmapTable);

        // insert image by URL into the table
        bitmapContainer.insertByName(internalName, imageURL);

        // get interface
        XNameAccess bitmapAccess = (XNameAccess)UnoRuntime.queryInterface(XNameAccess.class, bitmapTable);

        // get the embedded URL back
        newURL = (String)bitmapAccess.getByName(internalName);

    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    // return the new (embedded) url
    return newURL;
}