OPTIMAL DISPLAY AND ZOOM OF OBJECTS AND TEXT IN A DOCUMENT

• US 20130111332A1
• Filed: 11/03/2011
• Published: 05/02/2013
• Est. Priority Date: 11/02/2011
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Davis, Tristan, Taleghani, Ali, Sunderland, Edgar Mark, Best, Jessica Arwen, Lisse, Michelle E., Santos, Israel Amir Garza, Woo, Joseph Wai-Yan
• Granted Patent: US 9,442,649 B2
• Time in Patent Office: Days
• US Class Current: 715/247
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/0484 for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

An object is zoomed upon selection. A scaling factor is calculated for zooming the object based on current viewing properties of a document and properties of the object as well as the current size of the application window and device. The scaling factor to zoom the object is calculated such that after the object is zoomed, viewing the object is similar to a viewing experience for the rest of the document. Text of the document may be displayed to increase the readability of the document. For example, the text may be displayed such that each line of displayed text averages out to a predetermined number of characters (e.g. 50-75 characters) per line. A display size and width of an average character are determined and used to calculate how many columns of text to display within the display. When the zoom level of the text changes, the text is redisplayed.

Claims

1. A method for displaying text within a document for readability, comprising:

accessing a document comprising text;

determining a display size for displaying the text;

determining a text property;

determining a desired number of characters per line to display;

determining a number of columns used to display the text based on the text property, the display size and the desired number of characters per line to display; and

displaying the text in the determined number of columns within a window that approximately averages the desired number of characters per line.

2. The method of claim 1, wherein determining the text property comprises determining an average character width.

3. The method of claim 1, wherein determining the desired number of characters per line to display comprises setting the desired number of characters per line between fifty and seventy-five.

4. The method of claim 1, wherein determining the number of columns to display based on the text property comprises modifying column widths within the window.

5. The method of claim 1, wherein determining the number of columns to display based on the text property comprises maintaining the display size such that the displayed text is viewable within the display size without scrolling.

6. The method of claim 1, further comprising determining:

a width of the display size, a border width, and a padding that is used in determining the number of columns.

7. The method of claim 1, determining when a change to a view of the document affects a size of the displayed text, and in response to the change to the determining at least one of:

a new display size for displaying the text;

determining a new text property; and

determining the number of columns used to display the text.

8. The method of claim 1, wherein determining the number of columns used to display the text based on the text property, the display size and the desired number of characters per line to display comprises determining a maximum number of columns that fit within the display size without adding a scrolling option to the window.

9. A computer-readable medium having computer-executable instructions for displaying text within a document for readability, comprising:

accessing a document comprising text;

determining a display size for displaying the text;

determining an average character width for characters in the document;

determining a desired number of characters per line to display;

determining a number of columns used to display the text based on the average character width, the display size and the desired number of characters per line to display; and

displaying the text in the determined number of columns within a window that approximately averages the desired number of characters per line.

10. The computer-readable medium of claim 9, wherein determining the desired number of characters per line to display comprises setting the desired number of characters per line between fifty and seventy-five.

11. The computer-readable medium of claim 9, further comprising maintaining the display size such that the displayed text is viewable within the display size of the window without adding a horizontal scroll.

12. The computer-readable medium of claim 9, further comprising determining:

a width of the window, a border width, and a padding that is used in determining a maximum number of columns.

13. The computer-readable medium of claim 9, determining when a change to a view of the document affects a size of the displayed text, and in response to the change to the determining at least one of:

a new display size for displaying the text;

determining a new average character width; and

determining the number of columns used to display the text.

14. The computer-readable medium of claim 9, wherein determining the number of columns used to display the text based on the text property, the display size and the desired number of characters per line to display comprises determining a maximum number of columns that fit within the display size without adding a scrolling option to the window.

15. A system for displaying text within a document for readability, comprising:

a processor and a computer-readable medium;

an operating environment stored on the computer-readable medium and executing on the processor; and

an zoom manager operating under the control of the operating environment and operative to;

accessing a document comprising text;

determining a display size for displaying the text;

determining an average character width for characters in the document;

determining a desired number of characters per line to display;

determining a number of columns used to display the text based on the average character width, the display size and the desired number of characters per line to display; and

displaying the text in the determined number of columns within a window that approximately averages the desired number of characters per line.

16. The system of claim 15, wherein determining the desired number of characters per line to display comprises setting the desired number of characters per line between fifty and seventy-five.

17. The system of claim 15, further comprising maintaining the display size such that the displayed text is viewable within the display size of the window without adding a horizontal scroll.

18. The system of claim 15, further comprising determining:

a width of the window, a border width, and a padding that is used in determining a maximum number of columns.

19. The system of claim 15, determining when a change to a view of the document affects a size of the displayed text, and in response to the change to the determining at least one of:

a new display size for displaying the text;

determining a new average character width; and

determining the number of columns used to display the text.

20. The system of claim 15, wherein determining the number of columns used to display the text based on the text property, the display size and the desired number of characters per line to display comprises determining a maximum number of columns that fit within the display size without adding a scrolling option to the window.