Supporting platform-independent typesetting for documents

A platform-independent, document-based technology, applied in the fields of instrumentation, computing, electrical digital data processing, etc.

Inactive Publication Date: 2012-07-25
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, inconsistencies in the way fonts are rendered between different computing platforms can cause the same document to be rendered differently relative to users of different computing platforms

Method used

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  • Supporting platform-independent typesetting for documents
  • Supporting platform-independent typesetting for documents
  • Supporting platform-independent typesetting for documents

Examples

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Embodiment Construction

[0025] The following description is provided to enable any person skilled in the art to make and use the invention, and is presented in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

[0026] The data structures and code described in this detailed description are generally stored on a computer-readable storage medium, which can be any device or medium that can store code and / or data for use by a computer system. Computer-readable storage media include, but are not limited to, volatile memory, non-volatile memory, magnetic a...

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PUM

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Abstract

The present invention relates to a supporting platform-independent typesetting for documents. Some embodiments of the present invention provide a system that typesets and renders a document in a platform-independent manner. During operation, the system first obtains the document, wherein the document includes text content and associated style information including one or more fonts. The system also obtains platform-independent font metrics for the one or more fonts, wherein the platform-independent font metrics include information that can be used to determine the positions of individual characters in a rendering of the document. Next, the system uses the platform-independent font metrics to determine how the document is divided into line fragments and pages. Finally, the system uses the determined division while rendering the document, so that the division of the document into line fragments and pages is the same across different computing platforms.

Description

technical field [0001] The illustrated embodiments relate to techniques for composing and presenting documents in computer systems. More specifically, the illustrated embodiments relate to a platform-independent technique for typesetting and rendering documents that ensures that page and line breaks in documents are the same across different computer systems and computing platforms. Background technique [0002] The recent proliferation of web browsers and computer networks has made it easy to display the same document on different computing platforms. However, inconsistencies in the way fonts are rendered between different computing platforms can cause the same document to be rendered differently relative to users of the different computing platforms. More specifically, for a given font, measures of various font characteristics such as character height, width, leading, and whitespace are interpreted differently between computing platforms. These font differences can cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/21
CPCG06F17/212G06F17/214G06F40/106G06F40/109
Inventor C·E·鲁道夫B·普若科菲M·A·安巴奇什尔
Owner APPLE INC
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