Microsoft Technology Licensing, LLC

Sergey Z Malkin

Andrei Burago

Victor E Kozyrev

Sergey Genkin

Christian Fortini

Michael J Patten

Justin Rogers

Rico Mariani

Jason Joseph Weber

Li-Hsin Huang

Nicholas Randall Waggoner

Michael J Ens

Richard Keith James

Rossen Atanassov

Jennifer P Michelstein

Antonio Vargas Garcia

Brian E Manthos

Matthew Allen Rakow

Samuel R Fortiner

Sandra G Roberts

Praveen Kumar Muralidhar Rao

R Scott Briggs

Yining Chen

Matthew P Kotsenas

Anjali S Parikh

Peter Salas

Nirankush Panchbhai

Yuanzhe Wang

Grant A Watters

Various embodiments utilize a layout viewport and a visual viewport separate from the layout viewport. The layout viewport is utilized for such things as page layout operations and reporting Document Object Model values to script. The layout viewport can be thought of as an initial rectangle which is equivalent in size to the initial containing block. The initial containing block is a containing block that contains web content that is initially visible to the user. The visual viewport is separate from the layout viewport and is allowed to be freely manipulated relative to the layout viewport. For example, the visual viewport may 'push' the layout viewport around when it collides with the layout viewport boundaries. The visual viewport can be thought of as the rectangle that is visible to the user.

Virtual viewport and fixed positioning with optical zoom

Techniques for synchronization points for state information are described. In at least some embodiments, synchronization points are employed to propagate state information among different processing threads. A synchronization point, for example, can be employed to propagate state information among different independently-executing threads. Accordingly, in at least some embodiments, synchronization points serve as inter-thread communications among different independently-executing threads.

Synchronization points for state information

A text formatting system includes a set of rules that are each configured to be applied to perform a text formatting adjustment. An engine is configured to process an input to make a determination as to which rules in the set should be applied so as to carry out a text formatting adjustment on the input. The engine is further configured to process the input without checking every rule in said set for applicability to every component of said input.

Performance optimization for text layout processing

A method and system for optimizing the horizontal spacing of superscripts and subscripts in open type font designs is disclosed. The system includes a module for vertically aligning and spacing characters and a module for horizontally aligning characters having differing baselines in accordance with cut-in information stored in font tables corresponding to each individual character in the font. This additional horizontal spacing adjustment capability provides for optimum placement of character glyphs having differing baselines, e.g., superscript or subscript. The method includes placing a first/next character on a baseline, retrieving a next adjacent character, determining whether a cut-in associated with one or both of the characters can be applied between the two characters, and then applying the appropriate cut-in. Ascertaining whether a cut-in may apply may be accomplished by evaluating relative positions of adjacent glyph bounding boxes.

Method and system of character placement in opentype fonts

A character within a font is enlarged to a desired size by first determining whether the font contains existing or predefined variants of the character having the desired size. If no appropriately sized variant exists, the enlarged character is assembled from a plurality of component glyphs that are stored with the font, wherein the component glyphs include an extender that may be duplicated within the assembled character in order to achieve the desired size. In one embodiment, the font includes tables containing records of the enlarged variants for a particular character, as well as part records for the component glyphs used to assemble the enlarged character.

Enlargement of font characters

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Redmond, WA, United States of America

Sergey Z Malkin