Abstract: A computer-implemented method and computer-readable medium are provided for providing page and table layout services. According to the method, a layout manager program provides layout services to client application programs. The layout manager receives requests from client application programs to format document content. In response to such requests, the layout manager performs one or more callback operations to the client application to retrieve portions of the document to be laid out. Once the portions of the page to be laid out have been retrieved through the callback operations, the layout manager lays out the portions of the document and notifies the client application that the layout is completed. The client application can then query the layout manager for the formatting result.

Abstract: A method and computer-readable medium are provided for optimized paragraph layout. According to the method, a line-by-line paragraph layout is generated determine a maximum penalty for a paragraph. One or more layout nodes may be generated that include data representing a possible layout of the paragraph to a point within a backing store and identifying any changes to a geometry of the page caused by the layout of the paragraph defined by the layout node. A penalty is also calculated for each of the layout nodes. Each layout node that has a penalty less than the maximum penalty calculated during the line-by-line formatting processing is added to the node pool. This process repeats until only a single layout node remains in the node pool that represents the entire paragraph of text.

Abstract: A computer-implemented method and computer-readable medium are provided for providing page and table layout services. According to the method, a layout manager program provides layout services to client application programs. The layout manager receives requests from client application programs to format document content. In response to such requests, the layout manager performs one or more callback operations to the client application to retrieve portions of the document to be laid out. Once the portions of the page to be laid out have been retrieved through the callback operations, the layout manager lays out the portions of the document and notifies the client application that the layout is completed. The client application can then query the layout manager for the formatting result.