RESOLUTION-INDEPENDENT DISPLAY LIST

• US 20140082475A1
• Filed: 09/17/2012
• Published: 03/20/2014
• Est. Priority Date: 09/17/2012
• Status: Active Grant

• Current Assignee: Konica Minolta Laboratory U.S.A., Inc. (Konica Minolta Inc.)
• Original Assignee: Konica Minolta Laboratory U.S.A., Inc. (Konica Minolta Inc.)
• Inventors: Nordback, Kurt N.
• Granted Patent: US 9,619,865 B2
• Time in Patent Office: Days
• US Class Current: 715/234
• CPC Class Codes: G06F 40/109 Font handling; Temporal or kinetic typography
• CPC Class Codes: G06T 3/4092 Image resolution transcoding, e.g. by using client-server architectures

Abstract

A method for scaling on a display device, including: obtaining an electronic document (ED) identifying multiple graphical features; generating, before receiving a request to scale the ED on the display device, multiple resolution-independent (RI) versions of the multiple graphical features; adding, before receiving the request to scale the ED on the display device, the multiple RI versions to a RI display list; receiving the request to scale the ED on the display device specifying a resolution; and generating, in response to the request, a scaled ED for the display device by rendering the multiple RI versions of the multiple graphical features in the RI display list at the resolution.

Claims

1. A method for scaling on a display device, comprising:

obtaining an electronic document (ED) identifying a plurality of graphical features;

generating, before receiving a request to scale the ED on the display device, a plurality of resolution-independent (RI) versions of the plurality of graphical features;

adding, before receiving the request to scale the ED on the display device, the plurality of RI versions to a RI display list;

receiving the request to scale the ED on the display device, wherein the request specifies a resolution; and

generating, in response to the request, a scaled ED for the display device by rendering the plurality of RI versions of the plurality of graphical features in the RI display list at the resolution.

2. The method of claim 1, wherein the ED is described in OOXML.

3. The method of claim 1, wherein generating the plurality of RI versions comprises:

extracting a plurality of character data values from a font in the ED; and

generating a vector outline for a text character in the ED based on the plurality of character data values,

wherein the plurality of graphical features comprises the text character, and

wherein the plurality of RI versions comprises the vector outline.

4. The method of claim 1, wherein generating the plurality of RI versions comprises:

converting a graphic in the ED to a plurality of elemental vector objects,

wherein the plurality of graphical features comprises the graphic; and

wherein the plurality of RI versions comprises the plurality of elemental vector objects.

5. The method of claim 4, wherein the plurality of elemental vector objects comprises at least one selected from a group consisting of a triangle and a trapezoid.

6. The method of claim 1, wherein generating the plurality of RI versions comprises:

converting an image to a color space of the display device,

wherein the plurality of graphical features comprises the image.

7. The method of claim 6, wherein the color space of the device is red, blue, green.

8. A non-transitory computer readable medium (CRM) storing instructions for scaling, the instructions comprising functionality for:

obtaining an electronic document (ED) identifying a plurality of graphical features;

generating, before receiving a request to scale the ED on a display device, a plurality of resolution-independent (RI) versions of the plurality of graphical features;

adding, before receiving the request to scale the ED on the display device, the plurality of RI versions to a RI display list;

receiving the request to scale the ED on the display device, wherein the request specifies a resolution; and

generating, in response to the request, a scaled ED for the display device by rendering the plurality of RI versions of the plurality of graphical features in the RI display list at the resolution.

9. The non-transitory CRM of claim 8, wherein the ED is described in OOXML.

10. The non-transitory CRM of claim 8, wherein the instructions for generating the plurality of RI versions comprise functionality for:

extracting a plurality of character data values from a font in the ED; and

generating a vector outline for a text character in the ED based on the plurality of character data values,

wherein the plurality of graphical features comprises the text character, and

wherein the plurality of RI versions comprises the vector outline.

11. The non-transitory CRM of claim 8, wherein the instructions for generating the plurality of RI versions comprise functionality for:

converting a graphic in the ED to a plurality of elemental vector objects,

wherein the plurality of graphical features comprises the graphic; and

wherein the plurality of RI versions comprises the plurality of elemental vector objects.

12. The non-transitory CRM of claim 11, wherein the plurality of elemental vector objects comprises at least one selected from a group consisting of a triangle and a trapezoid.

13. The non-transitory CRM of claim 8, wherein the instructions for generating the plurality of RI versions comprise functionality for:

converting an image to a color space of the display device,

wherein the plurality of graphical features comprises the image.

14. The non-transitory CRM of claim 13, wherein the color space of the device is red, blue, green.

15. A system for scaling on a display device, comprising:

a processor;

a buffer storing an electronic document (ED) identifying a plurality of graphical features;

a processing engine executing on the processor and configured to;

generate, before receiving a request to scale the ED on the display device, a plurality of resolution-independent (RI) versions of the plurality of graphical features; and

add, before receiving the request to scale the ED on the display device, the plurality of RI versions to a RI display device; and

a rendering engine configured to;

generate, after receiving the request, a scaled ED by rendering the plurality of RI versions of the plurality of graphical features in the RI display list at a resolution specified in the request.

16. The system of claim 15, wherein the ED is described in OOXML.

17. The system of claim 15, wherein the processing engine comprises:

a graphics module configured to;

convert a graphic in the ED to a plurality of elemental vector objects,

wherein the plurality of graphical features comprises the graphic, and

wherein the plurality of RI versions comprises the plurality of elemental vector objects.

18. The system of claim 17, wherein the plurality of elemental vector objects comprises at least one selected from a group consisting of a triangle and a trapezoid.

19. The system of claim 15, wherein the processing engine comprises:

a text module configured to;

extract a plurality of character data values from a font in the ED; and

generate a vector outline for a text character in the ED based on the plurality of character data values,

wherein the plurality of graphical features comprises the text character, and

wherein the plurality of RI versions comprises the vector outline.

20. The system of claim 15, wherein the processing engine comprises:

an image module configured to convert an image to a color space of the display device,

wherein the plurality of graphical features comprises the image.