WO2014169597A1

WO2014169597A1 - Text erasure method and device

Info

Publication number: WO2014169597A1
Application number: PCT/CN2013/085187
Authority: WO
Inventors: 陈安靖; 侯冰
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-09-09
Filing date: 2013-10-14
Publication date: 2014-10-23
Also published as: CN104423869A

Abstract

Disclosed are a text erasure method and device. The method comprises: acquiring a first touch control point on a touchscreen, wherein the first touch control point is a location where a cursor is located; in the case that the first touch control point continuously keeps touching the touchscreen, acquiring a second touch control point, and determining to enter a text erasure mode according to the first touch control point and the second touch control point; and in the text erasure mode, acquiring a sliding track which takes the location where the first touch control point is located as a start location, and determining text to be erased for erasure according to the sliding track. According to the technical solution provided in the present invention, a user is enabled to realize a text erasure operation in a multipoint touch control manner, thereby improving the efficiency for the user to perform text editing, and improving the user experience at the same time.

Description

The present invention relates to the field of communications, and in particular to a text erasing method and apparatus. BACKGROUND OF THE INVENTION Currently, text editing software in the related art generally adopts a method of first selecting a cursor to a specific location to be erased, and then clicking a preset delete button on a physical keyboard or a virtual keyboard. Each time you click, the cursor rolls back one space and erases one character. However, in the case that a large number of characters need to be deleted on the display screen, there are multiple locations to be modified, for example: the user opens a text editing software on the IPAD and has edited a large amount of text, but subsequent discovery needs Fully modified, there will be a situation where the touch media moves back and forth on the touch screen. For the operator, the operation is very cumbersome and inefficient, and the user experience is poor. It can be seen that when the mobile terminal in the related art performs text erasing in the text editing state, the operation is cumbersome, inefficient, and the user experience is poor. SUMMARY OF THE INVENTION The present invention provides a text erasing method and apparatus for solving at least the problems of cumbersome operation, low efficiency, and poor user experience when a mobile terminal in a related art performs text erasing in a text editing state. According to an aspect of the invention, a text erasing method is provided. The text erasing method of the present invention includes: acquiring a first touch point on the touch screen, wherein the first touch point is a position where the cursor is located; and acquiring the second touch when the first touch point continuously keeps touching the touch screen Controlling the point, and determining to enter the text erasure mode according to the first touch point and the second touch point; acquiring a sliding track starting from the position of the first touch point in the text erasing mode, and according to the sliding track Determine the text to be erased for erasing. According to another aspect of the present invention, a text erasing apparatus is provided. The text erasing device of the present invention includes: an obtaining module, configured to acquire a first touch point on the touch screen, wherein the first touch point is a position of the cursor; and the determining module is configured to continuously maintain the touch at the first touch point When the touch screen is touched, the second touch point is obtained, and the text erase mode is determined according to the first touch point and the second touch point. The erasing module is configured to acquire a sliding track starting from a position where the first touch point is located in the text erasing mode, and determine the text to be erased according to the sliding track to perform erasing. According to the embodiment of the present invention, the first touch point is obtained on the touch screen, and the first touch point is the position of the cursor; and the second touch point is obtained when the first touch point continues to touch the touch screen. And determining to enter the text erasure mode according to the first touch point and the second touch point; acquiring a sliding track with the first touch point as a starting position in the text erasing mode, and determining to be wiped according to the sliding track The erased text is erased, that is, the position of the cursor is first determined, and then the first touch point and the second touch point are successively touched by the touch screen to determine the entry into the text erase mode, and then follow the first touch point. The text to be erased is determined for the sliding track of the starting position to be erased, thereby solving the problem that the mobile terminal in the related art performs text erasing in the text editing state, the operation is cumbersome and inefficient, and the user experience is relatively low. Poor problem, which enables users to erase text by multi-touch, improve the efficiency of text editing, and enhance user body. . BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a flow chart of a text erasing method according to an embodiment of the present invention; FIG. 2 is a schematic diagram of text erasure based on multi-touch according to a preferred embodiment of the present invention; FIG. 4 is a block diagram showing the structure of a text erasing apparatus according to an embodiment of the present invention; FIG. 5 is a block diagram of a text erasing apparatus according to a preferred embodiment of the present invention; Structure diagram. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. 1 is a flow chart of a text erasing method in accordance with an embodiment of the present invention. As shown in FIG. 1 , the method may include the following processing steps: Step S102: Acquire a first touch point on a touch screen, where the first touch point is a location where the cursor is located; Step S104: Acquire a second touch point when the first touch point continues to touch the touch screen, and determine to enter the text erase mode according to the first touch point and the second touch point; Step S106: In the text In the erasing mode, a sliding track with the position of the first touch point as a starting position is obtained, and the text to be erased is determined according to the sliding track to be erased. In the related art, when the mobile terminal performs text erasing in the text editing state, the operation is cumbersome, inefficient, and the user experience is poor. Using the method shown in FIG. 1 , the first touch point is obtained on the touch screen, and the first touch point is the position of the cursor; and the second touch is obtained when the first touch point continues to touch the touch screen. Pointing, and determining to enter the text erasure mode according to the first touch point and the second touch point; acquiring a sliding track starting from the position of the first touch point in the text erasing mode, and determining according to the sliding track The text to be erased is erased, that is, the position of the cursor is first determined, and then the text erase mode is determined when the first touch point and the second touch point successively touch the touch screen, and then the first touch is followed. The control point is determined by the sliding track of the starting position to erase the text to be erased, thereby solving the problem that the mobile terminal in the related art performs text erasing in the text editing state, and the operation is cumbersome and inefficient, and the user is Experience poorer problems, enabling users to erase text by multi-touch, improve the efficiency of text editing, and enhance user experience. Preferably, in step S106, acquiring the sliding track, and determining the text to be erased according to the sliding track may include the following operations: Step S1: calculating first coordinate information of the starting position relative to the preset coordinate origin; Step S2: calculating The second coordinate information of the end position of the sliding track relative to the preset coordinate origin; Step S3: determining the text to be erased according to the first coordinate information and the second coordinate information. In a preferred embodiment, when it is desired to erase a certain number of characters or a certain number of characters, the cursor is moved to the vicinity of the text area to be erased. At this time, another finger (for example, the thumb) is touched on the touch screen, and the screen enters the text erase mode because the screen senses multi-touch. In the text erasing mode, the mobile terminal can obtain the text content selected by the operator as the object to be erased by calculating the coordinate information (xl, yl ) of the start position of the sliding operation and the coordinate information (x2, y2) of the current stop position of the sliding operation. Except the text. Preferably, in step S106, erasing the text to be erased may include the following steps: Step S4: determining whether the first touch point and/or the second touch point leave the touch screen; Step S5: If yes, the text to be erased is erased, or it is determined that the text to be erased is in the selected state. In a preferred embodiment, when any of the two fingers of the operator in contact with the touch screen leaves the screen, the above-described action, once sensed by the screen, performs an exit text erase mode operation. Eventually, the text erase operation that the user has performed is officially in effect. Of course, the operator can also remove any one of the two fingers from the screen. After the above action is detected by the screen, it is determined that the text to be erased is selected and not actually erased, and waits for two. After the finger leaves the screen, the selected text is actually erased, which is no longer visible to the operator. Preferably, in step S106, after the sliding track is acquired, and the text to be erased is determined according to the sliding track, the following operations may also be included: Step S6: acquiring a backtrack, wherein the backtrack is terminated from the sliding track The position starts to slide and is opposite to the direction of the sliding track; Step S7: Redisplay part or all of the text content in the text to be erased on the touch screen according to the retreat trajectory, or determine that part or all of the text content is in an unselected state. In a preferred embodiment, after entering the text erasure mode, the index finger can be used to traverse a certain number of characters or a certain number of characters to be erased, whereby the above-mentioned characters enter an erased state. At this time, for the operator, the above characters are no longer visible, but the characters are not completely deleted, but are stored in the memory of the mobile terminal, so that the user's erroneous operation can be effectively prevented. When the text originally intended to be retained is erased together due to the user's misoperation, if the user wants to restore the erased text at the previous moment, the index finger may simply perform the rollback operation according to the erased trajectory. The text that has been erased will be redisplayed. Preferably, in step S102, acquiring the first touch point may include the following steps: Step S8: determining whether the contact time of the touch medium and the specific position in the text editing area exceeds a preset duration in the text editing state; Step S9: If yes, move the cursor to a specific location and determine the specific location as the first touchpoint. In a preferred embodiment, when the touch screen of the mobile terminal is in a text editing state (for example, SMS editing), when a finger of the user (for example, an index finger) presses a specific position in the text edit box, the fingertip is touched. The cursor is displayed nearby, and an enlarged area is displayed to display the text content near the cursor and its location. At this time, the position of the cursor is the first touch point. As a preferred embodiment of the present invention, FIG. 2 is a schematic diagram of text erasure based on multi-touch according to a preferred embodiment of the present invention. As shown in FIG. 2, in the preferred embodiment, the operator's right hand 102 is located above the text edit box 101, and the operator uses the index finger 104 to select the fine adjustment to place the cursor 105 in the proper position (ie, the operator wants Erase the text near the cursor position, which is equivalent to the first touch point above. In the enlarged area display, the position 108 of the current cursor can be more clearly seen. At this time, the current position of the cursor can be finely adjusted by the small sliding of the index finger 104 (the first touch point changes accordingly). When the operator's thumb 103 touches the touch screen (here equivalent to the second touch point described above), the touch screen thereby determines to enter the text erase (delete) mode. In the preferred embodiment, the operator's index finger 104 slides to the left to select the text area 107 to be deleted, that is, equivalent to successively tapping the Backspace key back. If the user finds that the deleted text is more internal than the number of words that he wants to erase (for example: the original operator wants to delete the text as "one side down the world, there should be", but the actual operation will cause a misoperation. ": " Also erased together.) At this time, the operator can slide the character in the opposite direction at the current position of the cursor (ie, perform the retracting operation) to redisplay the character that has just been erased, or to be in the unselected state again. In the text erasing mode, the mobile terminal can obtain the text content selected by the operator for erasing by calculating the coordinates (xl, _y l ) of the starting position of the sliding operation and the coordinates (x2, y2) of the current stopping position of the sliding operation. When the touch screen senses that any of the thumb and forefinger leaves the screen, the erase mode is exited, and the previously selected text of the operator is erased or the previously erased text is confirmed. Viewed from another perspective, FIG. 3 is a schematic diagram of state transition based on multi-touch text erasure in accordance with a preferred embodiment of the present invention. As shown in FIG. 3, in the preferred embodiment, there is a normal mode (ie, a common text editing interface presented to the user), a location selection mode (ie, by the user touching the screen with one finger and fine-tuning the movement at the fingertips) Touch the nearby display cursor and generate an enlarged area to display the text content near the cursor and its location) and the text erase mode. The technical solution provided by the embodiment of the present invention is to perform conversion between the above three different modes. The specific conversion process is as follows:

(1) Switching from normal mode to position selection mode: When the user touches the screen with the index finger and fine-tunes the movement, it switches from the normal mode to the position selection mode. At this time, the cursor is displayed near the fingertip touch, and an enlarged area is generated. Display the text content near the cursor and its location;

(2) Switching from the position selection mode to the normal mode: When the user moves the index finger away from the screen, the mode is switched from the position selection mode to the normal mode;

(3) Switching from the position selection mode to the text erasure mode: When the user touches the screen with the index finger, the user touches the touch screen with another finger (for example, a thumb), because the screen senses multi-touch, Switch from position selection mode to text erase mode; (4) Switching from the text erase mode to the position selection mode: When any one of the two fingers that the user touches the touch screen leaves the screen, the above-mentioned action is performed after the screen is sensed, and the exit text erase mode operation is performed. In the preferred embodiment, it is assumed that the user's index finger continues to touch the state of the screen, and the thumb leaves the screen first, and then the text erase mode is switched to the position selection mode; (5) erasing from text Mode Switching to Normal Mode: In the preferred embodiment, it is assumed that the user's thumb continues to remain in touch with the screen, and the index finger leaves the screen first, at which point the text erase mode is switched to the normal mode. 4 is a block diagram showing the structure of a text erasing apparatus according to an embodiment of the present invention. As shown in FIG. 4, the text erasing apparatus may include: an acquiring module 10, configured to acquire a first touch point on the touch screen, wherein the first touch point is a location of the cursor; and the determining module 20 is set to be in the first When the touch point continues to touch the touch screen, the second touch point is obtained, and the text erase mode is determined according to the first touch point and the second touch point; the erasing module 30 is set to wipe in the text In addition to the mode, a sliding track with the position of the first touch point as a starting position is obtained, and the text to be erased is determined according to the sliding track to be erased. The device shown in FIG. 4 solves the problem that the mobile terminal in the related art performs the text erasing in the text editing state, the operation is cumbersome, the efficiency is low, and the user experience is poor, thereby enabling the user to pass multiple points. The touch method realizes the erasing operation of the text, improves the efficiency of the user for text editing, and improves the user experience. Preferably, as shown in FIG. 5, the erasing module 30 may include: a first calculating unit 300 configured to calculate first coordinate information of a starting position relative to a preset coordinate origin; and a second calculating unit 302 configured to calculate a sliding The second coordinate information of the end position of the track relative to the origin of the preset coordinate; the first determining unit 304 is configured to determine the text to be erased according to the first coordinate information and the second coordinate information. Preferably, as shown in FIG. 5, the erasing module 30 may include: a first determining unit 306, configured to determine whether the first touch point and/or the second touch point leave the touch screen; and the erasing unit 308 is configured to be in When the output of the first judging unit is YES, the text to be erased is erased, or it is determined that the text to be erased is in the selected state. Preferably, as shown in FIG. 5, the erasing module 30 may include: an acquiring unit 310 configured to acquire a retreating trajectory, wherein the retreating trajectory starts to slide from the end position of the sliding trajectory and is opposite to the direction of the sliding trajectory; The unit 312 is configured to redisplay part or all of the text content in the text to be erased on the touch screen according to the rewinding track, or to determine that part or all of the text content is in an unselected state. Preferably, as shown in FIG. 5, the obtaining module 10 may further include: a second determining unit 102 configured to determine, in the text editing state, whether the contact time of the touch medium with a specific position in the text editing area exceeds a preset time The second determining unit 104 is configured to move the cursor to the specific position when the output of the second determining unit is YES, and determine the specific position as the first touch point. From the above description, it can be seen that the foregoing embodiment achieves the following technical effects (it is required that the effects are achievable by some preferred embodiments): the multi-touch is adopted by the embodiment of the present invention. The method of text erasing makes the whole operation process smoother and more natural, especially for the case where a large number of characters need to be changed on the touch screen of the mobile terminal, the text erasing effect is particularly obvious. INDUSTRIAL APPLICABILITY As described above, a text erasing method and apparatus provided by an embodiment of the present invention have the following beneficial effects: enabling a user to perform a text erasing operation by means of multi-touch, thereby improving the efficiency of text editing by a user At the same time, enhance the user experience. The function of text erasure is realized by adopting multi-touch method, which makes the whole operation process smoother and more natural, especially for the case where a large number of characters need to be changed on the touch screen of the mobile terminal, the text erasing effect is particularly obvious. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

1. A text erasing method, comprising:

Obtaining a first touch point on the touch screen, wherein the first touch point is a position where the cursor is located; and when the first touch point continues to touch the touch screen, acquiring the second touch Pointing, and determining to enter the text erase mode according to the first touch point and the second touch point;

And acquiring a sliding track with the position of the first touch point as a starting position in the text erasing mode, and determining, according to the sliding track, the text to be erased for erasing.

2. The method according to claim 1, wherein the obtaining the sliding track and determining the text to be erased according to the sliding track comprises:

Calculating first coordinate information of the starting position relative to a preset coordinate origin;

Calculating second coordinate information of an end position of the sliding track relative to the preset coordinate origin; determining the text to be erased according to the first coordinate information and the second coordinate information.

The method of claim 1 , wherein the erasing the text to be erased comprises: determining whether the first touch point and/or the second touch point leave the touch screen; If yes, the text to be erased is erased, or the text to be erased is determined to be in a selected state.

The method according to claim 1, wherein, after the sliding track is acquired, and the text to be erased is determined according to the sliding track, the method further includes:

Obtaining a retreat trajectory, wherein the retreating trajectory starts to slide from an end position of the sliding trajectory and is opposite to a direction of the sliding trajectory;

And displaying some or all of the text content in the text to be erased on the touch screen according to the fallback track, or determining that the part or all of the text content is in an unselected state.

The method according to any one of claims 1 to 4, wherein acquiring the first touch point comprises: determining whether a contact time of the touch medium and a specific position in the text editing area exceeds a time in a text editing state Preset time; If yes, the cursor is moved to the specific location, and the specific location is determined as the first touch point.

6. A text erasing device comprising:

The acquiring module is configured to acquire a first touch point on the touch screen, where the first touch point is a position where the cursor is located;

a determining module, configured to acquire the second touch point when the first touch point continues to touch the touch screen, and according to the first touch point and the second touch point Make sure to enter the text erase mode;

And an erasing module, configured to acquire a sliding track starting from a position of the first touch point in the text erasing mode, and determining, according to the sliding track, the text to be erased for erasing.

7. The device according to claim 6, wherein the erasing module comprises:

a first calculating unit, configured to calculate first coordinate information of the starting position relative to a preset coordinate origin;

a second calculating unit, configured to calculate second coordinate information of an ending position of the sliding track relative to the preset coordinate origin;

The first determining unit is configured to determine the text to be erased according to the first coordinate information and the second coordinate information.

8. The device according to claim 6, wherein the erasing module comprises:

The first determining unit is configured to determine whether the first touch point and/or the second touch point are away from the touch screen;

And an erasing unit, configured to erase the text to be erased when the output of the first determining unit is YES, or to determine that the text to be erased is in a selected state.

9. The device according to claim 6, wherein the erasing module comprises:

An acquiring unit, configured to acquire a retreat trajectory, wherein the retreating trajectory starts to slide from an end position of the sliding trajectory and is opposite to a direction of the sliding trajectory;

The processing unit is configured to redisplay part or all of the text content in the text to be erased on the touch screen according to the fallback track, or determine that the part or all of the text content is in an unselected state.

The apparatus according to any one of claims 6 to 9, wherein the acquisition module comprises: a second determining unit configured to determine, in a text editing state, contact of the touch medium with a specific position within the text editing area Whether the time exceeds the preset duration;

The second determining unit is configured to: when the output of the second determining unit is YES, move the cursor to the specific position, and determine the specific position as the first touch point.