CN105302464B - System and method for scribing flow type document - Google Patents
System and method for scribing flow type document Download PDFInfo
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- CN105302464B CN105302464B CN201510712701.2A CN201510712701A CN105302464B CN 105302464 B CN105302464 B CN 105302464B CN 201510712701 A CN201510712701 A CN 201510712701A CN 105302464 B CN105302464 B CN 105302464B
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Abstract
The invention provides a system and a method for scribing a stream document, which are used for detecting a scribing gesture of a user after determining to scribe leaf nodes such as a character paragraph and the like, then calculating the position of the scribing gesture, calculating the scribing position according to the position of the scribing gesture to obtain a scribing result, and finally displaying the scribing result. The invention improves the accuracy of scribing by predicting the starting position and the ending position of scribing and can realize page-crossing scribing.
Description
Technical Field
The invention belongs to the field of mobile reading, and particularly relates to a system and a method for scribing a stream type document.
Background
With the development of mobile terminals, touch screens have been widely used in electronic devices such as smart phones. People often need to line, mark or note text paragraphs when reading streaming documents through these electronic devices. In the prior art, the touch position is mainly sensed, and then the characters at the corresponding positions are scribed, however, in the actual operation process, the fingers of a user are large, the characters in character paragraphs are small, the touch position cannot be accurate to the characters desired by the user, the scribing accuracy is low, the user experience is poor, and in addition, when the page crossing scribing is needed, page turning cannot be performed in the scribing process.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a system and a method for scribing a streaming document, which improve the scribing accuracy and can realize cross-page scribing.
(II) technical scheme
The invention provides a system for scribing a streaming document, comprising:
the gesture detection module is used for detecting a line drawing gesture of a user, and if a leaf node where the line drawing gesture is located in the streaming document is a text paragraph or a leaf node which can be converted into a text paragraph, the line drawing position calculation module is triggered;
the scribing position calculating module is used for calculating the position of the scribing gesture and calculating the scribing position according to the position of the scribing gesture to obtain a scribing result;
and the scribing display module is used for displaying the scribing result.
The invention also provides a method for scribing a streaming document, which comprises the following steps:
step S1, detecting the line drawing gesture of the user, if the leaf node of the line drawing gesture in the streaming document is a text paragraph or a leaf node which can be converted into a text paragraph, executing step S2;
step S2, calculating the position of the line drawing gesture, and calculating the line drawing position according to the position of the line drawing gesture to obtain a line drawing result;
and step S3, displaying the scribing result.
(III) advantageous effects
The invention improves the accuracy of scribing by predicting the starting position and the ending position of scribing, and simultaneously realizes the function of cross-page scribing.
Drawings
Fig. 1 is a system for scribing a streaming document according to an embodiment of the present invention.
FIG. 2 is a logic diagram of the operation of the gesture detection module in the embodiment of the present invention.
FIG. 3 is a logic diagram of the gesture detection module and the stroked position calculation module when operating cooperatively according to an embodiment of the present invention.
Fig. 4 is a diagram illustrating effects provided by the embodiment of the present invention.
Detailed Description
The invention provides a system and a method for scribing a streaming document. The invention improves the accuracy of scribing by predicting the starting position and the ending position of scribing and can realize page-crossing scribing.
The invention provides a system for scribing a streaming document, comprising:
the gesture detection module is used for detecting a line drawing gesture of a user, and if a leaf node where the line drawing gesture is located in the streaming document is a character node, the line drawing position calculation module is triggered; wherein, there are multiple leaf nodes in the streaming document, including: the system comprises a text paragraph, a picture, a link, an audio control and a video, wherein the link, span, div, p and the like can be converted into the text paragraph, and the text paragraph can be used as a text node in the system.
The scribing position calculating module is used for calculating the position of the scribing gesture and calculating the scribing position according to the position of the scribing gesture to obtain a scribing result;
and the scribing display module is used for displaying scribing results.
According to one embodiment of the invention, the scribe gesture is one of a long press gesture, a swipe gesture, and a touch termination gesture, wherein:
when the line drawing gesture is a long pressing gesture, triggering a line drawing function and starting line drawing;
when the line drawing gesture is changed from a long pressing gesture to a sliding gesture, recording a sliding track, and drawing lines along the sliding track, wherein in the sliding process, if the line drawing position reaches the page tail, the end of the line drawing of the current page is marked, and the line drawing is continued at the page head of the next page;
when the stroke gesture changes from the swipe gesture to the touch-terminate gesture, then the entire stroke terminates.
According to an embodiment of the present invention, in the scribing position calculating module, if the scribing gesture is a long-press gesture:
determining a text paragraph where the long-press gesture is located according to the screen coordinates of the long-press gesture;
determining the line position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the top of the text paragraph and the height of each line of the text paragraph;
determining the column position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph;
and determining the character at the beginning of scribing according to the row position and the column position.
According to one embodiment of the present invention, determining a character from which a scribe line starts based on a row position and a column position includes: and calculating the number of error characters in touch, wherein the formula is as follows: error character number ═ touch finger width/(2 × single character width); determining a character X corresponding to the long-press gesture in the text paragraph according to the line position and the column position; if the number of characters between the character X and the first character of the character paragraph is less than or equal to the error number of characters, the first character of the character paragraph is used as the character for starting the line drawing, otherwise, the character X is used as the character for starting the line drawing. According to an embodiment of the present invention, in the stroke position calculation module, if the stroke gesture is a sliding gesture, a leaf node where the sliding gesture is located is determined according to the screen coordinate of the sliding gesture, if the leaf node is a non-text node, the stroke is ended, otherwise, a line position of the sliding gesture in the text paragraph is determined according to a distance between the sliding gesture and the top of the text paragraph and a height of each line of the text paragraph, a column position of the sliding gesture in the text paragraph is determined according to a distance between the sliding gesture and the leftmost side of the text paragraph and a horizontal width of each character of the text paragraph, and a current stroke character is determined according to the line position and the column position.
According to one embodiment of the invention, determining a character Y corresponding to a sliding gesture in a text paragraph according to a line position and a column position of the sliding gesture; judging whether the text field is completely displayed on the current page, if so, taking the last character of the text paragraph as an end character, otherwise, taking the last character on the page as the end character; if the number of characters between the character Y and the last character is less than or equal to the error number, the characters between the character with the beginning of line drawing and the last character are drawn, otherwise, the characters between the character with the beginning of line drawing and the character Y are drawn.
According to an embodiment of the present invention, if the number of characters between the character Y and the last character is less than or equal to the error number, and the text paragraph is not completely displayed on the current page, the page is automatically turned after the last character is scribed, and the first character of the text paragraph in the next page is scribed.
The invention also provides a method for scribing a streaming document, which comprises the following steps:
step S1, detecting the line drawing gesture of the user, if the leaf node of the line drawing gesture in the streaming document is the character node, executing step S2;
step S2, calculating the position of the line drawing gesture, and calculating the line drawing position according to the position of the line drawing gesture to obtain a line drawing result;
and step S3, displaying the scribing result.
According to an embodiment of the present invention, the stroking gesture is one of a long press gesture, a swipe gesture, and a touch termination gesture, wherein in step S1:
when the line drawing gesture is a long pressing gesture, triggering a line drawing function and starting line drawing;
when the line drawing gesture is changed from a long pressing gesture to a sliding gesture, recording a sliding track, and drawing lines along the sliding track, wherein in the sliding process, if the line drawing position reaches the page tail, the end of the line drawing of the current page is marked, and the line drawing is continued at the page head of the next page;
when the stroke gesture changes from the swipe gesture to the touch-terminate gesture, then the entire stroke terminates.
According to an embodiment of the present invention, in step S2, if the drawing gesture is a long-press gesture:
determining a text paragraph where the long-press gesture is located according to the screen coordinates of the long-press gesture;
determining the line position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the top of the text paragraph and the height of each line of the text paragraph;
determining the column position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph;
and determining the character at which the line drawing starts according to the line position and the column position.
According to one embodiment of the present invention, determining a character from which a scribe line starts based on a row position and a column position includes: and calculating the number of error characters in touch, wherein the formula is as follows: error character number ═ touch finger width/(2 × single character width); determining a character X corresponding to the long-press gesture in the text paragraph according to the line position and the column position; if the number of characters between the character X and the first character of the character paragraph is less than or equal to the error number of characters, the first character of the character paragraph is used as the character for starting the line drawing, otherwise, the character X is used as the character for starting the line drawing.
According to an embodiment of the present invention, in step S2, if the drawing gesture is a sliding gesture:
determining a leaf node where the sliding gesture is located according to the screen coordinates of the sliding gesture, if the leaf node is a non-text node, ending scribing, otherwise, determining the line position of the sliding gesture in the text paragraph according to the distance between the sliding gesture and the top of the text paragraph and the height of each line of the text paragraph, determining the column position of the sliding gesture in the text paragraph according to the distance between the sliding gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph, and determining the current scribed character according to the line position and the column position.
According to one embodiment of the invention, determining a character Y corresponding to a sliding gesture in a text paragraph according to a line position and a column position of the sliding gesture;
judging whether the text field is completely displayed on the current page, if so, taking the last character of the text paragraph as an end character, otherwise, taking the last character on the page as the end character;
if the number of characters between the character Y and the last character is less than or equal to the error number, the characters between the character with the beginning of line drawing and the last character are drawn, otherwise, the characters between the character with the beginning of line drawing and the character Y are drawn.
According to an embodiment of the present invention, if the number of characters between the character Y and the last character is less than or equal to the error number, and the text paragraph is not completely displayed on the current page, the page is automatically turned after the last character is scribed, and the first character of the text paragraph in the next page is scribed.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
Fig. 1 is a system for drawing a line on a streaming document according to an embodiment of the present invention, as shown in fig. 1, including a gesture detection module, a line drawing position calculation module, and a line drawing display module. The gesture detection module is used for detecting a line drawing gesture of a user for drawing a text paragraph; the scribing position calculating module is used for calculating the position of the scribing gesture and calculating the scribing position according to the position of the scribing gesture to obtain a scribing result; and the scribing display module is used for displaying scribing results.
Fig. 2 is a logic diagram of the operation of the gesture detection module in the embodiment of the present invention, as shown in fig. 2, the gesture detection module opens a streaming document through an App, enters a reading interface, and detects a long-press gesture, a slide gesture, and a touch termination gesture, if the long-press gesture is detected, a line drawing function is triggered, the start of line drawing is recorded, and at this time, a line drawing position calculation module may be called to perform line drawing calculation; if the long press gesture is detected and then the sliding gesture is detected, starting to record the track of touch movement, and still calling the scribing position calculation module to perform scribing calculation; if a touch termination event occurs after the long press event and the finger touch move event occur, the entire scribe line is terminated.
FIG. 3 is a logic diagram of the operation of the gesture detection module and the stroke position calculation module in the embodiment of the present invention, as shown in FIG. 3, when a long-press gesture is detected, screen coordinates of the long-press gesture are obtained, positions and sizes of elements of a current streaming document are calculated, and a text paragraph where the long-press gesture is located is determined; determining the line position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the top of the text paragraph and the height of each line of the text paragraph; determining the column position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph; and determining the character at which the line drawing starts according to the line position and the column position. And if the character at the beginning of the line is the second character or the third character of the character paragraph, taking the first character of the character paragraph as the character at the beginning of the line.
When the sliding gesture is detected, determining a text paragraph where the sliding gesture is located according to the screen coordinates of the sliding gesture; determining the line position of the sliding gesture on the text paragraph according to the distance between the sliding gesture and the top of the text paragraph and the height of each line of the text paragraph; determining the column position of the sliding gesture in the text paragraph according to the distance between the sliding gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph; and determining the current scribed character according to the row position and the column position. If the current marking character is the last character or the last but one character of the current page of the reading interface, marking the character behind the current marking character in the current page, and starting to mark the next page; otherwise, after the current line drawing character is drawn, stopping drawing the current page.
Fig. 4 is an effect diagram provided by the embodiment of the present invention, and as shown in fig. 4, the scribing display module obtains the scribing result from the scribing position calculation module, and displays the underline on the character between the scribing start character and the scribing end character.
In conclusion, the invention improves the scribing accuracy by predicting the scribing start position and the scribing end position, and simultaneously realizes the function of cross-page scribing.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A system for scoring a streaming document, comprising:
the gesture detection module is used for detecting a line drawing gesture of a user, and if a leaf node of the line drawing gesture in the streaming document is a character node, the line drawing position calculation module is triggered, wherein the line drawing gesture comprises at least one of a long pressing gesture, a sliding gesture and a touch termination gesture; the gesture detection module is specifically configured to:
when the scribing gesture is detected to be a long pressing gesture, triggering a scribing function and starting scribing;
when the scribing gesture is detected to be changed from the long pressing gesture to the sliding gesture, recording a sliding track of the sliding gesture, and scribing along the sliding track; and
stopping scribing upon detecting the scribing gesture changing from the swipe gesture to a touch stop gesture;
a scribing position calculating module, configured to calculate a position of the scribing gesture, and calculate a scribing position according to the position of the scribing gesture, to obtain a scribing result, where the scribing position calculating module is specifically configured to: when the line drawing gesture is the long pressing gesture, determining a character at the beginning of line drawing according to the screen coordinate of the long pressing gesture; and
a scribing display module for displaying the scribing result,
wherein determining the character at which the drawing starts according to the screen coordinates of the long-press gesture comprises:
determining a text paragraph where the long pressing gesture is located and a line position and a column position of the long pressing gesture in the text paragraph according to the screen coordinates of the long pressing gesture;
determining a character X corresponding to the long-press gesture in the text paragraph according to the line position and the column position; and
and when the number of the characters between the character X and the first character of the text paragraph is less than or equal to the error number of characters, taking the first character of the text paragraph as a character starting to draw a line, and otherwise, taking the character X as the character starting to draw the line, wherein the error number of characters is the error number of characters when the user touches the screen.
2. A system for scoring a streaming document as in claim 1 wherein during scoring along the sliding trajectory, if the scoring position has reached the end of the current page of the streaming document, marking the end of the current page scoring and continuing scoring at the beginning of the next page of the current page.
3. A system for scoring a streaming document as in claim 2, wherein determining the line position and column position of the long press gesture at the text passage based on the screen coordinates of the long press gesture comprises:
determining the line position of the long-press gesture on the text paragraph according to the distance between the long-press gesture and the top of the text paragraph and the height of each line of the text paragraph;
and determining the column position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph.
4. A system for scoring a streaming document as in claim 3 wherein the error number is calculated by the formula:
the error character number is the touch finger width/(2 × single character width).
5. A system for scribing a streaming document according to claim 4, wherein when the scribing gesture is the sliding gesture, scribing along the sliding trajectory comprises:
determining whether a leaf node where the sliding gesture is located is a non-text node or not according to the screen coordinates of the sliding gesture;
if the leaf node is a non-text node, ending the scribing;
if the leaf node is a text node:
determining the line position of the sliding gesture on the text paragraph according to the distance between the sliding gesture and the top of the text paragraph and the height of each line of the text paragraph, determining the column position of the sliding gesture on the text paragraph according to the distance between the sliding gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph, and determining the current scribed character according to the line position and the column position; and
and drawing a line along the sliding track according to the current line drawing character.
6. A system for scribing a streaming document according to claim 5, wherein determining a current scribe character from the row and column positions comprises:
determining a character Y corresponding to the sliding gesture in the text paragraph according to the line position and the column position;
judging whether the text field is completely displayed on the current page, if so, taking the last character of the text paragraph as an end character, otherwise, taking the last character on the current page as the end character;
if the number of the characters between the character Y and the last character is less than or equal to the error number of the characters, the characters between the characters with the beginning of line drawing and the last character are drawn, otherwise, the characters between the characters with the beginning of line drawing and the character Y are drawn.
7. A system for scoring a streaming document as in claim 6, wherein if the number of characters between the character Y and the last character is less than or equal to the number of error characters and the text passage is not fully displayed on the current page, then the last character is automatically turned after scoring and the first character of the text passage in the page next to the current page is scored.
8. A method of scribing a streaming document, comprising:
step S1, detecting a line drawing gesture of a user, if a leaf node of the line drawing gesture in the streaming document is a character node, executing step S2, wherein the line drawing gesture comprises at least one of a long pressing gesture, a sliding gesture and a touch termination gesture;
step S2, calculating the position of the line drawing gesture, and calculating the line drawing position according to the position of the line drawing gesture to obtain the line drawing result, including:
when the line drawing gesture is the long pressing gesture, determining a character at the beginning of line drawing according to the screen coordinate of the long pressing gesture, and starting line drawing;
when the line drawing gesture is changed from the long pressing gesture to the sliding gesture, recording a sliding track of the sliding gesture, and drawing a line along the sliding track; and
when the line drawing gesture is changed from the sliding gesture to the touch stopping gesture, stopping drawing the line to obtain a line drawing result;
and step S3, displaying the scribing result,
wherein determining the character at which the drawing starts according to the screen coordinates of the long-press gesture comprises:
determining a text paragraph where the long pressing gesture is located and a line position and a column position of the long pressing gesture in the text paragraph according to the screen coordinates of the long pressing gesture;
determining a character X corresponding to the long-press gesture in the text paragraph according to the line position and the column position; and
and when the number of the characters between the character X and the first character of the text paragraph is less than or equal to the error number of characters, taking the first character of the text paragraph as a character starting to draw a line, and otherwise, taking the character X as the character starting to draw the line, wherein the error number of characters is the error number of characters when the user touches the screen.
9. A method for scoring a streaming document as in claim 8, wherein during scoring along the sliding trajectory, if the scoring position has reached the end of the current page of the streaming document, marking the end of the current page scoring and continuing scoring at the head of the next page of the current page.
10. A method of scribing a streaming document as in claim 9, wherein determining the line position and column position of the long press gesture at the text paragraph from the screen coordinates of the long press gesture comprises:
determining the line position of the long-press gesture on the text paragraph according to the distance between the long-press gesture and the top of the text paragraph and the height of each line of the text paragraph;
and determining the column position of the long pressing gesture on the text paragraph according to the distance between the long pressing gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph.
11. A method of scoring a streaming document as in claim 10, wherein the error number is calculated by the formula:
the error character number is the touch finger width/(2 × single character width).
12. A method of scribing a streaming document as in claim 11, wherein when the scribing gesture is the sliding gesture, scribing along the sliding trajectory comprises:
determining whether a leaf node where the sliding gesture is located is a non-text node or not according to the screen coordinates of the sliding gesture;
if the leaf node is a non-text node, ending the scribing;
if the leaf node is a text node:
determining the line position of the sliding gesture on the text paragraph according to the distance between the sliding gesture and the top of the text paragraph and the height of each line of the text paragraph, determining the column position of the sliding gesture on the text paragraph according to the distance between the sliding gesture and the leftmost side of the text paragraph and the horizontal width of each character of the text paragraph, and determining the current scribed character according to the line position and the column position; and
and drawing a line along the sliding track according to the current line drawing character.
13. A method of scribing a streaming document as in claim 12, wherein determining a current scribe character from the row and column positions comprises:
determining a character Y corresponding to the sliding gesture in the text paragraph according to the line position and the column position of the sliding gesture;
judging whether the text field is completely displayed on the current page, if so, taking the last character of the text paragraph as an end character, otherwise, taking the last character on the current page as the end character;
if the number of the characters between the character Y and the last character is less than or equal to the error number of the characters, the characters between the characters with the beginning of line drawing and the last character are drawn, otherwise, the characters between the characters with the beginning of line drawing and the character Y are drawn.
14. A method for scoring a streaming document as recited in claim 13, wherein if the number of characters between the character Y and the last character is less than or equal to the number of error characters and the text passage is not completely displayed on a current page, the last character is automatically turned after scoring, and the first character of the text passage in a page next to the current page is scored.
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| CN107368465B (en) | 2016-05-13 | 2020-03-03 | 北京京东尚科信息技术有限公司 | System and method for processing screenshot note of streaming document |
| CN106775399B (en) | 2016-12-12 | 2018-01-12 | 掌阅科技股份有限公司 | electronic book data processing method, device and mobile terminal |
| CN106681615A (en) * | 2016-12-30 | 2017-05-17 | 深圳市创凯智能股份有限公司 | Document viewing method and device |
| CN108628528B (en) * | 2017-03-16 | 2020-07-31 | 北京京东尚科信息技术有限公司 | Method, system and device for optimizing reading application cross-page text mark |
| CN111026315B (en) * | 2019-11-20 | 2021-04-23 | 维沃移动通信有限公司 | Text selection method and electronic equipment |
| CN112684895A (en) * | 2020-12-31 | 2021-04-20 | 安徽鸿程光电有限公司 | Marking method, device, equipment and computer storage medium |
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| US7259753B2 (en) * | 2000-06-21 | 2007-08-21 | Microsoft Corporation | Classifying, anchoring, and transforming ink |
| CN102110230A (en) * | 2009-12-29 | 2011-06-29 | 鸿富锦精密工业（深圳）有限公司 | Electronic book reader capable of drawing lines on electronic book and line drawing method |
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| CN101937312A (en) * | 2010-09-15 | 2011-01-05 | 中兴通讯股份有限公司 | Method for marking electronic book and mobile terminal |
| CN103064920A (en) * | 2012-12-20 | 2013-04-24 | 优视科技有限公司 | Method and device for scaling page fonts in mobile terminal |
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