CN113918070A

CN113918070A - Synchronous display method and device, readable storage medium and electronic equipment

Info

Publication number: CN113918070A
Application number: CN202111006795.3A
Authority: CN
Inventors: 时小婷; 刘欢; 廖璐璐
Original assignee: Beijing Kingsoft Office Software Inc; Zhuhai Kingsoft Office Software Co Ltd
Current assignee: Beijing Kingsoft Office Software Inc; Zhuhai Kingsoft Office Software Co Ltd
Priority date: 2020-08-31
Filing date: 2021-08-30
Publication date: 2022-01-11

Abstract

The invention relates to a synchronous display method, a synchronous display device, a readable storage medium and electronic equipment. The method comprises the following steps: determining target display content of the first display interface, wherein the target display content is selected display content in a second display interface synchronously displayed by the first display interface, and the selected display content is part of display content in the second display interface; and adjusting the size of a display area of the target display content in the first display interface. Therefore, the problem that the watching of audiences is influenced due to incomplete display content or reduced display content can be effectively solved, and the watching experience of the audiences is improved.

Description

Synchronous display method and device, readable storage medium and electronic equipment

Technical Field

The invention relates to the technical field of internet application, in particular to a synchronous display method, a synchronous display device, a readable storage medium and electronic equipment.

Background

With the development of computer and network technologies, a plurality of electronic devices in communication connection can form a synchronous display system to synchronously display a document displayed by one of the electronic devices, that is, when a presenter in the synchronous display system browses a document in its own electronic device, other electronic devices in the synchronous display system can also synchronously display the document being browsed by the presenter.

In the related art, the synchronous display mode can be realized by adopting an equal-proportion display mode. The equal-scale display refers to that the display content is scaled according to the same scaling ratio and then mapped to all the electronic devices in the synchronous display system, that is, the scaling ratios of the display content of all the electronic devices in the synchronous display system are consistent. When the screen size of the electronic device in the synchronous display system is different, if the scaling is performed according to the scaling corresponding to the smallest-sized screen, the screen space of a part of the electronic device (for example, the electronic device with the screen size larger than the smallest size) is wasted. If the screen is not zoomed according to the zoom ratio corresponding to the minimum size screen, the electronic device with the smaller screen size cannot completely display the display content, so that the content is not completely displayed, and the viewing of the audience is influenced.

Disclosure of Invention

The invention aims to provide a synchronous display method, a synchronous display device, a readable storage medium and electronic equipment, which are used for solving the problems in the related art.

In order to achieve the above object, a first aspect of the present invention provides a synchronous display method, including:

determining target display content of a first display interface, wherein the target display content is selected display content in a second display interface synchronously displayed by the first display interface, and the selected display content is part of display content in the second display interface;

and adjusting the size of a display area of the target display content in the first display interface.

Optionally, adjusting the size of the display area of the target display content in the first display interface includes:

adjusting the display area of the target display content in the first display interface according to the size of the target display content in the first display area of the first display interface and the size of the first display interface; the first display area is a display area of the target display content in the first display interface before the size of the display area of the target display content in the first display interface is adjusted.

Optionally, the size of the second display area of the target display content in the first display interface after the adjustment is larger than the size of the first display area of the target display content in the first display interface before the adjustment.

clearing other display contents except the target display contents in the first display interface; adjusting the size of the display area of the target display content in the first display interface according to the size of the target display content in the first display area of the first display interface and the size of the first display interface; alternatively, the first and second electrodes may be,

amplifying a first display area in the first display interface to enable moving contents positioned around the target display contents in the first display interface to move according to corresponding directions until the size of the display area of the target display contents in the first display interface is equal to that of a second display area; and the corresponding direction is a direction generated by connecting with the target display content as a starting point and the mobile content as an end point.

calculating the length and the width of a second display area of the adjusted target display content in the first display interface, and adjusting the size of the display area of the target display content in the first display interface according to the length and the width of the second display area; alternatively, the first and second electrodes may be,

and acquiring the calculated outline of the target display content in a second display area in the first display interface, and amplifying the target display content along the outline according to a transverse amplification scale or a longitudinal amplification scale.

acquiring the size of the target display content in a first display area of a first display interface;

clearing all display contents in the first display interface;

and calculating the size of a second display area of the target display content in the first display interface according to the size of the target display content in the first display area of the first display interface and the size of the first display interface, redrawing the target display content according to the size of the second display area, and displaying the target display content in the first display interface.

Optionally, redrawing the target display content according to the size of the second display area, and displaying the target display content in the first display interface, includes:

acquiring the calculated length and width of the target display content in a second display area in the first display interface, and redrawing the target display content according to the acquired length and width; alternatively, the first and second electrodes may be,

and acquiring the coordinates of the adjusted target display content, and redrawing the target display content according to the acquired coordinates.

Optionally, the synchronous display method further includes:

and adjusting the second display area of the target display content to a preset area in the first display interface.

Optionally, the adjusting the second display area of the target display content to a preset area in the first display interface includes:

acquiring the center point coordinate of the target display content in a second display area in the first display interface;

and moving the second display area according to the offset between the center point coordinate and the center point coordinate of the preset area, so that the center point coordinate of the second display area is superposed with the center point coordinate of the preset area.

Optionally, the preset area is a central area of the first display interface.

Optionally, under the condition that the target content is not displayed in the first display interface, recording the size of the area occupied by the selected display content in the second display interface after zooming according to a preset zooming scale as the size of the first display area;

adjusting a display area of the target display content in a first display interface according to the size of the target display content in the first display area of the first display interface and the size of the first display interface;

the preset scaling is the ratio of the area size of the first display interface to the area size of the second display interface, or the ratio of the length size of the first display interface to the length size of the second display interface, or the ratio of the width size of the first display interface to the width size of the second display interface.

Optionally, the method is applied to a slave display device, the slave display device is connected with a master display device, and the slave display device is used for synchronously displaying the display content in the display interface of the master display device; the first display interface is a display interface of the slave display device, and the second display interface is a display interface of the master display device.

Optionally, the slave display device receives a selected operation of the master display device; determining display content corresponding to the selection operation as target display content of a first display interface, wherein the display content corresponding to the selection operation is part of display content in a display interface of the main display equipment;

Optionally, the determining the target display content of the first display interface includes:

receiving identification information sent by the second display interface; the identification information is used for identifying the selected display content in the second display interface;

and determining the target display content of the first display interface according to the identification information.

Optionally, obtaining identification information for identifying the selected display content in the second display interface includes:

responding to a selection instruction of the second display interface;

acquiring an object in the second display interface according to the selection instruction;

and acquiring the identification information of the object.

identifying whether ink appears in display content in the first display interface;

and under the condition that ink appears in the display content in the first display interface, determining the target display content according to the position information of the ink in the first display interface.

Optionally, by obtaining an operation instruction for generating ink on the second display interface, it is determined that the ink appears in the display content in the first display interface; alternatively, the first and second electrodes may be,

and judging that the ink appears in the display content in the first display interface by detecting the operation instruction of the ink appearing in the first display interface.

Optionally, under the condition that the display content in the first display interface is judged to have ink marks by obtaining an operation instruction for generating ink marks on the second display interface, the obtained operation instruction for generating ink marks on the second display interface is that the second display interface receives frame selection operation; or the obtained operation instruction of the second display interface for generating ink is that the second display interface receives a pressing operation on the display screen, and the pressing operation lasts for a preset time and generates a preset displacement.

Optionally, when a pressing operation on the display screen is received through the second display interface and the display content in the first display interface is judged to have ink, judging whether the type of the ink is an underline;

and under the condition that the type of the ink mark is judged to be an underline, the displacement continuously generated by the pressing operation is the ink mark position.

Optionally, under the condition that the display content in the first display interface is judged to have the ink through detecting the operation instruction of the ink on the first display interface, the obtained operation instruction of the ink on the first display interface is the frame selection operation sent by the obtained second display interface; or the pressing operation on the display screen sent by the second display interface lasts for a preset time and generates a preset displacement.

Optionally, in a case that the display content in the first display interface is judged to have ink by obtaining the pressing operation on the display screen sent by the second display interface, judging whether the type of the ink is an underline;

Optionally, in the case that the ink is a frame, the display content corresponding to the position of the ink is content located in the frame and/or content located within a preset range around the frame;

if the ink is an underline, the display content corresponding to the ink position is the content which is positioned above the underline and adjacent to the underline;

under the condition that the ink mark is the comment, the display content corresponding to the ink mark position is the content corresponding to the comment;

and under the condition that the ink is positioned on the picture, displaying content corresponding to the ink position is the picture.

Optionally, before the determining the target display content of the first display interface, the method further includes:

and responding to the operation of a user, and switching the display mode of the first display interface into a mode which is suitable for the display part to display the content.

The second aspect of the present invention also provides a synchronous display device, comprising:

the device comprises a determining module, a judging module and a display module, wherein the determining module is used for determining target display content of a first display interface, the target display content is selected display content in a second display interface synchronously displayed by the first display interface, and the selected display content is part of display content in the second display interface;

and the first adjusting module is used for adjusting the size of a display area of the target display content in the first display interface.

Optionally, the size of the display area of the adjusted target display content in the first display interface is larger than the size of the display area of the target display content in the first display interface before adjustment.

Optionally, the first adjusting module is configured to: and adjusting the size of the display area of the target display content in the first display interface according to the size of the current display area of the target display content in the first display interface and the size of the first display interface.

Optionally, the apparatus further comprises:

and the second adjusting module is used for adjusting the display area of the target display content to a preset area in the first display interface.

Optionally, the second adjusting module includes:

the obtaining submodule is used for obtaining the center point coordinates of the display area of the target display content in the first display interface;

and the moving submodule is used for moving the display area of the target display content in the first display interface according to the offset between the center point coordinate and the center point coordinate of the preset area, so that the center point coordinate of the display area of the target display content in the first display interface is superposed with the center point coordinate of the preset area.

Optionally, the preset area is a central area of the first display interface.

Optionally, the apparatus is applied to a slave display device, the slave display device is connected with a master display device, and the slave display device is used for synchronously displaying the display content in the display interface of the master display device; the first display interface is a display interface of the slave display device, and the second display interface is a display interface of the master display device.

Optionally, the determining module includes:

the receiving submodule is used for receiving identification information which is sent by the second display interface and used for identifying the selected display content in the second display interface;

and the first determining submodule is used for determining the target display content of the first display interface according to the identification information.

Optionally, the determining module includes:

the identification submodule is used for identifying whether ink marks appear in the display content in the first display interface;

and the second determining submodule is used for determining the target display content according to the position information of the ink in the first display interface under the condition that the display content in the first display interface is identified to have the ink.

Optionally, the apparatus further comprises:

and the switching module is used for responding to the operation of a user and switching the display mode of the first display interface into a mode which can adapt to the display content of the display part.

Optionally, the targeted display content comprises one or more of: pictures, text, shapes, charts, tables, ink, controls.

The third aspect of the present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method provided by the first aspect of the present invention.

The fourth aspect of the present invention also provides an electronic apparatus, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method provided by the fourth aspect of the invention.

Through the technical scheme, the target display content of the first display interface can be determined firstly, and then the size of the display area of the target display content in the first display interface is adjusted. Therefore, the problem that the watching of audiences is influenced due to incomplete display content or reduced display content in the related technology can be effectively solved, and the watching experience of the audiences is improved. In addition, because the target display content displayed on the first display interface is the content currently explained by the presenter, the content watched by the audience is ensured to be consistent with the content explained by the presenter, and the requirement of synchronous display is met.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram illustrating a synchronized display scenario in accordance with an exemplary embodiment.

FIG. 2 is a schematic diagram illustrating another synchronized display scenario in accordance with an exemplary embodiment.

FIG. 3 is a schematic diagram illustrating a third synchronous display scenario in accordance with an exemplary embodiment.

Fig. 4 is a flow chart illustrating a method of synchronized display according to an exemplary embodiment.

FIG. 5 is a schematic diagram illustrating a fourth synchronous display scenario in accordance with an exemplary embodiment.

Fig. 6 is a block diagram illustrating a synchronous display device according to an exemplary embodiment.

FIG. 7 is a block diagram illustrating an electronic device in accordance with an example embodiment.

Detailed Description

The invention will be described in detail hereinafter with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

First, a synchronous display scene will be explained.

FIG. 1 is a schematic diagram illustrating a synchronized display scenario in accordance with an exemplary embodiment. In an exemplary embodiment, as shown in fig. 1, the synchronous display scene may include a slave display device 101 and a master display device 102. The slave display device 101 is connected to the master display device 102, and the slave display device 101 is configured to synchronously display the display content of the master display device 102 in the display interface. The slave display apparatus 101 and the master display apparatus 102 are connected to each other directly or indirectly through a local network, the internet, or the like. The display interface of the master display device 102 is the second display interface, and the display interface of the slave display device 101 is the first display interface. The slave display device 101 and the master display device 102 may be the same terminal device or different terminal devices, and the hardware configurations may be the same or different, for example, the slave display device 101 and the master display device 102 may be a notebook computer, a smart phone, a tablet computer, a desktop computer, a smart speaker, a smart watch, and the like, but are not limited thereto. In fig. 1, the primary display device 102 is a notebook computer, and the secondary display device 101 is a smart phone.

The master display device 102 is a device that shares display content, that is, a device used by a presenter, and the slave display device 101 is a device that receives and synchronously displays the display content shared by the master display device 102. In actual use, the master-slave relationship between the two display devices is not fixed, the slave display device may be switched to the master display device to share the display content, and the master display device may also be switched to receive the shared display content from the slave display device. Also, the number of the slave display devices 101 may be one or more, and the present invention is not particularly limited thereto. It should be noted that, when the number of the slave display apparatuses 101 is multiple, each slave display apparatus 101 may execute the synchronous display method provided by the present invention.

FIG. 2 is a schematic diagram illustrating another synchronized display scenario in accordance with an exemplary embodiment. As shown in fig. 2, in another exemplary embodiment, the display screen of the display device 20 is divided into a first display interface 201 and a second display interface 202 in advance. The first display interface 201 is used for synchronously displaying the display content on the second display interface 202.

FIG. 3 is a schematic diagram illustrating a third synchronous display scenario in accordance with an exemplary embodiment. As shown in fig. 3, the slave display device 101 is connected to the master display device 102 through a server 103, the master display device 102 transmits the shared display content to the server 103, and the slave display device 102 is configured to synchronously download the content uploaded by the master display device 102 from the server, so as to realize remote synchronous display between the master display device 102 and the slave display device 101. In some embodiments, the server 103 may be an independent physical server, may also be a server cluster or a distributed system formed by a plurality of physical servers, and may also be a cloud server providing basic cloud computing services such as a cloud service, a cloud database, cloud computing, a cloud function, cloud storage, a Network service, cloud communication, a middleware service, a domain name service, a security service, a Content Delivery Network (CDN), big data, and an artificial intelligence platform. The slave display device 101, the master display device 102, and the server 103 may be directly or indirectly connected through wired or wireless communication, and the embodiments of the present application are not limited thereto.

The synchronous display method provided by the present invention is explained below, and the execution subject of the method may be, for example, the slave display device 101 in one exemplary embodiment shown in fig. 1, or the display device 20 in another exemplary embodiment shown in fig. 2, or the server 103 in the third exemplary embodiment shown in fig. 3. Fig. 4 is a flowchart of a synchronous display method according to an embodiment of the present application. The synchronous display method will be described below by taking different application scenarios as examples.

Step 301: and determining target display content of the first display interface.

The target display content is selected display content in a second display interface synchronously displayed in the first display interface, and the selected display content is part of display content in the second display interface.

Taking the implementation scenario shown in fig. 1 as an example, an execution subject of the method steps shown in fig. 4 may be the slave display device 101, the first display interface is a display interface of the slave display device 101, and the second display interface may be a display interface of the master display device 102 that a presenter performs an explanation operation, that is, when the presenter performs the explanation operation in the second display interface, if a part of the display content in the second display interface is selected, the slave display device 101 determines a corresponding display content (i.e., a target display content) in the first display interface by acquiring the selected part of the display content in the second display interface, and a specific determination manner of the corresponding display content may be determined by image recognition, or determined based on information that is sent by the master display device 102 and used for identifying the selected content, which will be described in detail later. The determined target display content may be a part of the current display content in the first display interface, or may be content to be displayed in the first display interface. The content to be displayed on the first display interface is the content which is not currently displayed on the first display interface and is displayed in the subsequent demonstration. The targeted display content may include, but is not limited to, one or more of the following: objects such as pictures, text, shapes, charts, tables, ink, controls, etc.

It is worth noting that in one exemplary embodiment, the first display interface may be the entire display screen in the slave display device 101 (as shown in fig. 1 or fig. 3). In another embodiment, the display screen in the slave display device 101 may be divided into different display windows, and the first display interface is only one of the display windows. For example, the display screen in the slave display device 101 is divided into an upper display interface and a lower display interface, where the upper display interface is denoted as a first display interface and is used for synchronously displaying the display content in the second display interface of the master display device 102, and the lower display interface may be used for displaying other content, such as a conversation box, a presenter avatar or a viewer avatar.

In an exemplary embodiment of the present invention, the second display interface may also be the entire display screen of the main display device 102 (as shown in fig. 1), or one of a plurality of display windows in the main display device 102.

In one exemplary embodiment of the present invention, a selection operation of a master display device is received from a display device; and determining the display content corresponding to the selection operation as target display content of the first display interface, wherein the display content corresponding to the selection operation is part of display content in the display interface of the main display device. The display content corresponding to the selection operation can be a click object obtained by clicking the second display interface by a mouse; the object can be an object obtained on the second display interface through frame selection operation; an object that may be a second display interface determined through voice operation; or an object of the second display interface determined by the shortcut key; or an object of the second display interface determined by the ink operation, etc. And are not limited herein.

Step 302: and adjusting the size of the display area of the target display content in the first display interface so as to adapt the target display content to the size of the first display interface.

The target display content is adapted to the size of the first display interface, so that the size of the target display content is adjusted, and the length and/or the width of the target display content is equal to the difference value between the size of the first display interface and a preset interval, wherein the preset interval represents the interval between the adjusted second display area boundary and the first display interface boundary.

In one embodiment provided by the present invention, the target display content is the content being explained by the presenter, that is, the target display content is the content that the audience focuses on currently, and other content may not focus on at the present moment, and therefore, the target display content may be displayed in the first display interface of the slave display device 101 in a focused manner. For example, the size of the display area of the target display content in the first display interface is adjusted to be adapted to the size of the first display interface, so that the size of the second display area of the target display content in the first display interface after adjustment is larger than the size of the first display area of the target display content in the first display interface before adjustment, the problem that the viewing of the audience is affected due to incomplete display content or reduced display content in the related art can be effectively solved, and the viewing experience of the audience is improved.

For example, the display area of the target display content in the first display interface can be adjusted to adapt to the size of the first display interface according to the size of the target display content in the first display area of the first display interface and the size of the first display interface. The first display area is the display area of the target display content in the first display interface before the size of the display area of the target display content in the first display interface is adjusted. Taking the implementation scenario shown in fig. 1 as an example, the slave display device 101 may determine an adjustment ratio of a display area of the target display content in the first display interface according to a size of a first display area of the target display content in the first display interface, a size of the first display interface, and a preset interval (the preset interval represents an interval between an adjusted second display area boundary and the first display interface boundary), and then adjust the size of the display area of the target display content in the first display interface according to the adjustment ratio. The size of the first display area can be obtained by acquiring an area formed by coordinates of the target display content. The position of the target display content relative to the outer edge of the first display interface composition area can also be obtained, and in the embodiment provided by the invention, the outer edge is the edge of the area away from the center coordinate of the first display interface. And will not be described in detail herein.

It is worth mentioning that, if the current display content in the first display interface includes the target display content, the size of the area occupied by the target display content in the first display interface is recorded as the size of the first display area; and if the target display content is the display content which is not currently displayed in the first display interface, recording the size of the area occupied by the selected display content in the second display interface after the selected display content is zoomed according to the preset zoom scale as the size of the first display area. The size of the occupied area of the selected display content in the second display interface can be obtained by adopting a calculation mode of the size of the first display area, and the preset scaling ratio is a preset scaling ratio of the occupied area of the display content in the synchronous display process; the preset scaling may be an equal scaling; or may be a scale for scaling the display content as a whole when the display content shared by the master display device 102 is currently displayed by the slave display device 101; when the preset scaling is a scaling at which the display content is entirely scaled, the preset scaling may be obtained by calculating a scale of the screen length or width of the slave display device 101 and the master display device 102; it is also possible to obtain by calculating the ratio of the screen areas of the slave display device 101 and the master display device 102. The present invention is not particularly limited in this regard.

For example, taking the implementation scenario shown in fig. 3 as an example, a description will be given of a manner of determining the size of the first display area of the target display content when the target display content is a display content that is not currently displayed on the first display interface. As shown in fig. 3, the display content shared by the master display device 102 is forwarded to the slave display device 101 by the server 103. If the selected content in the second display interface of the display device 102 is a first rectangle to a third rectangle (where the leftmost rectangle in the second display interface is the first rectangle and the rightmost rectangle is the fourth rectangle), the display area of the target display content in the first display interface is adjusted to fit the size of the first display interface according to the size of the target display content (the first rectangle to the third rectangle) in the first display area of the first display interface and the size of the first display interface. The adjustment is described in detail later. At this time, the first display interface no longer displays the fourth rectangle. When the fourth rectangle is continuously determined as the target display content in the subsequent demonstration of the second display interface, because the content represented by the fourth rectangle is not currently displayed in the first display interface, the server 103 shown in fig. 3 may record the size of the area occupied by the content represented by the selected fourth rectangle in the second display interface after being scaled according to the preset scaling as the size of the first display area. Further, after the size of the target display content in the first display area of the first display interface is determined according to the above manner, the display area of the target display content in the first display interface may be adjusted according to the size of the target display content in the first display area of the first display interface and the size of the first display interface, so as to adapt to the size of the first display interface. The adjustment is described in detail later. In the embodiment provided by the present invention, the fourth rectangle is continuously determined as the target display content in the subsequent demonstration of the second display interface, the fourth rectangle may be determined as the target display content in the second display interface by using a stylus click, a mouse click, or a frame selection, the identification information of the fourth rectangle is sent to the server 103, and after receiving the identification information of the fourth rectangle selected as the target display content sent by the primary display device 102, the server 103 may first perform scaling processing on the received display content according to a preset scaling ratio, and send the scaled display content to the secondary display device 101 for display. In an embodiment of the present invention, after receiving the identification information of the fourth rectangle selected as the target display content and sent by the master display device 102, the server 103 may further calculate the size of the target display content in the first display area of the first display interface according to a preset scaling, redraw the target display content according to the size of the target display content in the first display area of the first display interface, and send the redrawn target display content to the slave display device 101 for display.

FIG. 5 is a schematic diagram illustrating a fourth synchronous display scenario in accordance with an exemplary embodiment. The fourth synchronous display scenario is a schematic diagram of the synchronous display scenario shown in fig. 1, in which the master display device 102 selects a target display content, and the slave display device 101 adjusts the target display content at the first display interface according to the selection operation. The content within the dashed box in fig. 5 is the display content selected by the presenter in the second display interface of the main display device 102. Assuming that the target display content is a rectangle with 20 units by 20 units in the first display area in the first display interface of the display device 101, the target display content may be obtained by identifying an edge area of the target display content, may also be obtained by calculating coordinates of the target display content, and may also be obtained by calculating a relative position of the target display content with respect to the first display interface. In the embodiment provided by the invention, the unit can set the size value according to the actual requirement. The first display interface is a rectangle with 400 units × 800 units, and in the embodiment corresponding to fig. 5, the size of the display screen of the first device may be obtained by calculating vertex coordinates of the first display device, or may be directly obtained by device parameters. The preset interval is the difference between the rectangular boundary of the display area of the adjusted target display content and each corresponding side of the rectangular boundary of the first display interface, wherein the corresponding side refers to the rectangular upper boundary of the display area of the adjusted target display content and the rectangular upper boundary of the first display interface; the corresponding edge refers to the rectangular left boundary of the display area of the adjusted target display content and the rectangular left boundary of the first display interface. When the display area of the target display content is non-rectangular, the rectangular boundary of the display area of the target display content is the boundary of the minimum circumscribed rectangle of the display area of the target display content. In the embodiment corresponding to fig. 5, if the preset interval may be set to 20 units, adjusting the size of the display area of the target display content in the first display interface to adapt the target display content to the size of the first display interface includes: acquiring the length of 400 units and the width of 800 units of a first display interface; acquiring the length 20 units and the width 20 units of a second display interface; according to the size of a first display area of the target display content in the first display interface, the size of the first display interface and a preset interval (the preset interval represents the interval between the adjusted second display area boundary and the first display interface boundary), the adjustment proportion of the display area of the target display content in the first display interface is determined, and then according to the adjustment proportion, the size of the display area of the target display content in the first display interface is adjusted.

The horizontal adjustment ratio of the display area is (400-20)/20 is 19, the vertical adjustment ratio is (800-20)/20 is 39, and then the target display content is enlarged by 19 times in the horizontal direction and 39 times in the vertical direction. In this way, the target display content is enlarged in a manner of adapting to the first display interface, so that the audience can conveniently watch the content being explained by the presenter. In another exemplary embodiment provided by the present invention, the length and the width of the target display content after the adjustment may be further acquired, and the target display content may be redrawn according to the acquired length and width. When the target display content is in a non-rectangular shape, the target display content may be enlarged along the shape outline in a horizontal enlargement ratio or a vertical enlargement ratio. The coordinates of the adjusted target display content may also be acquired, and the target display content may be redrawn according to the acquired coordinates.

In another exemplary embodiment provided by the present invention, the target display content may also be proportionally adjusted according to the size of the first display interface. Assuming that the current display area of the target display content in the first display interface of the slave display device 101 is a rectangle with 20 units by 20 units, the first display interface is a rectangle with 400 units by 800 units, and the preset interval is that the rectangular boundary of the display area of the target display content after adjustment and the rectangular boundary of the first display interface are both different by 20 units, the horizontal adjustment ratio of the display area is (400-20)/20 is 19, the vertical adjustment ratio is (800-20)/20 is 39, the sizes of the horizontal adjustment ratio and the vertical adjustment ratio are determined, and the smaller value between the horizontal adjustment ratio and the vertical adjustment ratio is taken, in this embodiment, the horizontal adjustment ratio 19 of the display area is taken, and then the target display content is enlarged by 19 times in the horizontal direction and 19 times in the vertical direction. In this way, the target display content is enlarged in a manner of adapting to the first display interface, so that the audience can conveniently watch the content being explained by the presenter. In the embodiment provided by the invention, the target display content adaptive first display interface can be set according to specific requirements.

By adopting the technical scheme, the target display content of the first display interface is determined firstly, and then the size of the display area of the target display content in the first display interface is adjusted to adapt to the size of the first display interface. Therefore, the problem that the watching of audiences is influenced due to incomplete display content or reduced display content in the related technology can be effectively solved, and the watching experience of the audiences is improved. In addition, because the target display content displayed on the first display interface is the content currently explained by the presenter, the content watched by the audience is ensured to be consistent with the content explained by the presenter, and the requirement of synchronous display is met.

In order to facilitate a better understanding of the method for synchronous display provided by the present invention for those skilled in the art, the method is described below in a complete embodiment.

In one embodiment, the display modes of the first display interface of the slave display apparatus 101 may include a mode capable of displaying the entire content by sharing the screen and a mode capable of adapting to display a part of the displayed content. In this embodiment, in order to improve the flexibility of the synchronous display method, the slave display apparatus 101 may switch the display mode of the first display interface to a mode capable of adapting to the display content of the display portion in response to an operation by the user.

Illustratively, a mode changeover switch for switching between a mode in which the shared screen displays the entire content and a mode in which the display portion is adapted to display the content may be included in the first display interface. In this way, the user can switch the display mode of the first display interface to a mode adapted to the display content of the display portion by operating the mode switch.

Further illustratively, the slave display apparatus 101, upon detecting that ink is present in the first display interface, automatically pops up a window to remind a user of the slave display apparatus 10 whether to switch the display mode to a mode adapted to the display content of the display portion, and switches the display mode of the first display interface to the mode adapted to the display content of the display portion upon receiving an operation input by the user to characterize confirmation of switching to the mode adapted to the display content of the display portion. The method for determining that ink is present in the first display interface detected from the display device is described in detail later.

It should be noted that, in practical applications, the display mode of the first display interface may also be switched to a mode adapted to the display content of the display portion through other user operations, which is not described herein one by one.

After switching the display mode of the first display interface to a mode adapted to the display portion to display the content, the display apparatus including the first display interface can perform the above-described steps S301 and S302. Further, with respect to step S301, there are and are not limited to the following two ways of determining the target display content in the first display interface:

in the first manner, the presenter inputs a selection operation in the main display device 102, and the selection operation may be an operation of clicking to select the content being explained, or an operation of selecting the content being explained by means of a tool box (e.g., lasso, etc.), or a cursor being moved to the content being explained by the presenter, or the like. First, the main display device 102 determines identification information for identifying the selected display content in the second display interface in a case where a selection operation input by the presenter is detected. Each content displayed in the main display device 102 has identification information for identifying the content. For example, the display content is a plurality of pictures, and each picture has unique identification information for identifying the picture. It is worth noting that in one exemplary embodiment, each portion of content in the primary display device 102 has unique identification information for identifying the portion of content. For example, each paragraph in a document has one piece of identifying information. For another example, when the display content is a plurality of pictures, a plurality of adjacent images have one identification information, and the like.

In one embodiment of the present invention, the main display device 102 may determine the selected display content according to the selection operation input by the user by: and determining the content located in the preset range of the click position as the selected display content, or determining the content located in the position in the frame or the preset range of the frame as the selected content, or determining the content located in the preset range of the cursor position as the selected content. For example, if the cursor position is located in a paragraph of the document, the paragraph in which the cursor position is located is the selected content; if the cursor position is located between different sections, the last section and/or the next section where the cursor is located is the selected content; similarly, if the cursor position is located in the position of an object such as a table, a text box, a chart or a picture, the whole table, the text box, the chart or the whole picture is the selected content, and the like. In practical applications, the preset range may be set according to actual requirements, and the present invention is not particularly limited thereto.

Next, the master display apparatus 102 or the second display interface transmits identification information for identifying the selected display content in the second display interface to the slave display apparatus 101. The identification information is received from the display apparatus 101, and after the identification information is received, the target display content in the first display interface is determined according to the identification information.

In the second manner, since the slave display device 101 synchronously displays the display content in the display interface of the master display device 102, and the presenter typically adds ink to the content being explained, if the presenter adds ink to the content being explained in the master display device 102, the display content on the first interface of the slave display device 101 may include ink, and the slave display device 101 may determine the target display content according to the ink.

In one embodiment of the present invention, the slave display device 101 may recognize whether ink appears in the display content in the first display interface in an image recognition manner, and in a case that it is recognized that ink appears in the display content in the first display interface, determine the target display content according to the position information of the ink in the first display interface. In an embodiment of the present invention, image features of ink traces of various categories may be stored in advance, and image features of an image of content displayed in the first display interface may be extracted in real time, and when the extracted image features are matched with the stored image features of the ink traces, the ink traces appearing in the first display interface may be identified, which is not described herein again.

Illustratively, the slave display device 101 may consider that the presenter selected the display content in the master display device 102 upon recognizing that the display content in the first display interface appears in ink. Therefore, the slave display device 101 can further recognize the ink position and take the display content corresponding to the ink position as the target display content. And when the ink is a frame, displaying content corresponding to the position of the ink is content in the frame and/or content in a preset range around the frame. In the case where the ink is an underline, the display content corresponding to the ink position is the content located above and adjacent to the underline. And under the condition that the ink mark is the annotation, the display content corresponding to the ink mark position is the content corresponding to the annotation position. And under the condition that the ink is positioned on the picture, displaying content corresponding to the ink position is the picture.

In an embodiment of the present invention, it may be determined that the ink exists in the first display interface detected from the display device 101 by acquiring an operation instruction for generating ink on the second display interface, or it may be determined that the ink exists in the first display interface detected from the display device 101 by detecting an operation instruction for generating ink on the first display interface. Under the condition that the fact that the display device 101 detects that the ink exists in the first display interface is judged by obtaining the operation instruction of the second display interface for generating the ink, the obtained operation instruction of the second display interface for generating the ink can be that the second display interface receives frame selection operation; or the second display interface receives the pressing operation of a mouse, a finger and the like on the display screen, the pressing operation lasts for preset time and generates a preset displacement, and the preset time and the preset displacement can be set according to actual requirements. When a pressing operation of a mouse, a finger, or the like on the display screen is received through the second display interface, it is determined that ink is detected from the display device 101 in the first display interface, it is determined whether the type of the ink is an underline, and when it is determined that the type of the ink is an underline, a displacement amount continuously generated by the pressing operation is an ink position. When the operation instruction of the second display interface for generating the ink is obtained, the ink can be used as different conditions such as a frame, underlines, annotations, a picture and the like, and the display content corresponding to the position of the ink is identified, that is, the selected display content in the second display interface is identified. Identification information for identifying the selected display content in the second display interface is then determined. Then, the slave display device 101 receives identification information for identifying the selected display content in the second display interface, which is sent by the master display device 102 or the second display interface, and determines the target display content in the first display interface according to the identification information. Under the condition that the display device 101 detects that the ink exists in the first display interface by detecting the operation instruction of the ink on the first display interface, the obtained operation instruction of the ink on the first display interface is generated, and the operation instruction can be the frame selection operation sent by the obtained second display interface; or the pressing operation of the display screen sent by the second display interface lasts for a preset time and generates a preset displacement. When the frame selection operation sent by the second display interface is obtained, the display content corresponding to the position of the ink can be identified under the condition that the ink is taken as the frame. And when the pressing operation of the display screen sent by the second display interface is acquired, the pressing operation lasts for the preset time and generates the preset displacement, judging whether the type of the ink mark is an underline, and under the condition that the type of the ink mark is judged to be the underline, continuously generating the displacement by the pressing operation as the position of the ink mark.

With respect to step S302, the target display content is adjusted in the following three ways:

in a first manner, after the target display content is determined, first, other content except the target display content is removed from the first display interface, only the target display content is reserved, and then, the size of the display area of the target display content in the first display interface is adjusted according to the size of the current display area of the target display content in the first display interface and the size of the first display interface.

In a second mode, after the target display content is determined, the following operations are performed:

acquiring the size of target display content in a current display area of a first display interface;

clearing all display contents in the first display interface;

and calculating the size of a second display area of the target display content in the first display interface according to the size of the current display area of the target display content in the first display interface and the size of the first display interface, redrawing the target display content according to the size of the second display area, and displaying the target display content in the first display interface.

In a third mode, after the target display content is determined, a first display area in a first display interface is amplified, so that the moving content located around the target display content in the first display interface moves according to a corresponding direction until the size of the display area of the target display content in the first display interface is equal to that of a second display area; and the corresponding direction is a direction generated by connecting with the target display content as a starting point and the mobile content as an end point. The mobile content is other display content except the target display content in the first display interface.

Specifically, the size of the target display content in the first display interface is directly adjusted, as the size of the target display content increases, the content on the left side of the target display content in the first display interface moves to the left side of the first display interface, the content on the right side of the target display content moves to the right side of the first display interface, the content on the upper side of the target display content moves to the upper side of the first display interface, and the content on the lower side of the target display content moves to the lower side of the first display interface until the size of the display area of the target display content in the first display interface is equal to the size of the second display area.

Alternatively, in another embodiment, it is considered that the current display area of the target display content in the first display interface may be located at a non-middle position of the first display interface (e.g., located closer to the upper edge position of the first display interface, closer to the lower edge position of the first display interface, closer to the left edge position of the first display interface, or closer to the right edge position of the first display interface), which is not convenient for the viewer to view. Therefore, in this embodiment, after the target display content in the first display interface is determined, the position of the current display area of the target display content in the first display interface may be further adjusted, so as to adjust the display area of the target display content to the preset area in the first display interface. The preset area is any area in the first display interface.

In yet another embodiment, the predetermined area is an area convenient for the viewer to view, which may be a central area of the first display interface.

For example, the specific implementation manner of adjusting the display area of the target display content to the preset area in the first display interface may be: firstly, obtaining the center point coordinates of a display area of target display content in a first display interface; and then, moving the display area of the target display content in the first display interface according to the offset between the center point coordinate and the center point coordinate of the preset area, so that the center point coordinate of the display area of the target display content in the first display interface is overlapped with the center point coordinate of the preset area.

For example, assuming that the center point coordinate of the display area of the target display content in the first display interface is (2, 4), the center point coordinate of the preset area is (4, 8), and the display area of the target display content in the first display interface is shifted by 2 units along the positive direction of the X axis of the coordinate axis and by 4 units along the positive direction of the Y axis, the center point coordinate of the display area of the target display content in the first display interface can be made to coincide with the center point coordinate of the preset area.

It should be noted that, according to the offset between the center point coordinate of the target display content in the display area in the first display interface and the center point coordinate of the preset area, moving the display area of the target display content in the first display interface is only one possible implementation. In practical applications, other manners as long as the display area of the target display content can be adjusted to the preset area in the first display interface are also applicable to the present invention. For example, the display area of the target display content in the first display interface is moved according to the offset between the boundary coordinates of the display area of the target display content in the first display interface and the boundary coordinates of the preset area.

By adopting the scheme, the display area of the target display content can be adjusted to the preset area in the first display interface, and the preset area is the central area of the first display interface, so that the target display content can be displayed at the position, which is easy for a viewer to watch, in the first display interface, and the convenience for the viewer to watch is further improved.

In another embodiment, after the target display content on the first display interface is determined, the display area of the target display content may be adjusted to a preset area on the first display interface, and then the size of the display area of the target display content on the first display interface is adjusted. The specific implementation of adjusting the display area of the target display content to the preset area on the first display interface and the specific implementation of adjusting the size of the display area of the target display content on the first display interface are described above, and are not described herein again.

Therefore, the target display content can be displayed to the maximum extent, and the target display content can be displayed in the central area of the first display interface, so that the watching convenience of audiences is further improved, and the watching experience of the audiences is improved.

Based on the same inventive concept, the invention also provides a synchronous display device, which is used for implementing the synchronous display method provided by the embodiment of the method. Fig. 6 is a block diagram illustrating a synchronous display apparatus according to an exemplary embodiment, where the apparatus may be applied to a slave display device connected to a master display device, and the slave display device is configured to synchronously display contents in a display interface of the master display device. As shown in fig. 6, the synchronous display apparatus 500 may include:

a determining module 501, configured to determine target display content of a first display interface, where the target display content is selected display content in a second display interface displayed synchronously on the first display interface, and the selected display content is part of display content in the second display interface;

a first adjusting module 502, configured to adjust a size of a display area of the target display content in the first display interface.

Optionally, the apparatus further comprises:

Optionally, the second adjusting module includes:

Optionally, the preset area is a central area of the first display interface.

Optionally, the determining module includes:

Optionally, the apparatus further comprises:

and the switching module is used for responding to the operation of a user and switching the display mode of the first display interface into a mode suitable for the display content of the display part.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Based on the same inventive concept, the present invention also provides an electronic device, which may be an electronic device having the above-mentioned first display interface, and the electronic device may be, for example, the slave display device 101 in fig. 1, or the display device 20 shown in fig. 2, or the server 103 shown in fig. 3. Referring to fig. 7, fig. 7 is a block diagram illustrating an electronic device according to an example embodiment. For example, the electronic device 600 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.

As shown in fig. 7, the electronic device 600 may include: a processor 601 and a memory 602. The electronic device 600 may also include one or more of a multimedia component 603, an input/output (I/O) interface 604, and a communications component 605.

The processor 601 is configured to control the overall operation of the electronic device 600, so as to complete all or part of the steps in the synchronous display method. The memory 602 is used to store various types of data to support operations at the electronic device 600, such as instructions for any application or method operating on the electronic device 600, as well as application-related data, such as synchronously displayed content, size of display area, size of first display interface, spacing of maximum display area boundary from first display interface boundary, and so forth. Therefore, the processor 601 may adjust the size of the display area of the target display content in the first display interface by using the synchronously displayed content, the size of the display area, the size of the first display interface, and the interval between the maximum display area boundary and the first display interface boundary in the memory 602. The Memory 602 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 603 may include a screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 602 or transmitted through the communication component 605. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 604 provides an interface between the processor 601 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 605 is used for wired or wireless communication between the electronic device 600 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 605 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic Device 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described synchronous display method.

The electronic device provided by the invention can firstly determine the target display content of the first display interface, and then adjust the size of the display area of the target display content in the first display interface. Therefore, the problem that the watching of audiences is influenced due to incomplete display content or reduced display content in the related technology can be effectively solved, and the watching experience of the audiences is improved. In addition, because the target display content displayed on the first display interface is the content currently explained by the presenter, the content watched by the audience is ensured to be consistent with the content explained by the presenter, and the requirement of synchronous display is met.

In another exemplary embodiment, there is also provided a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described synchronized display method. For example, the computer readable storage medium may be the memory 602 described above that includes program instructions that are executable by the processor 601 of the electronic device 600 to perform the synchronous display method described above.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described synchronized display method when executed by the programmable apparatus.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A method for synchronized display, the method comprising:

2. The synchronous display method of claim 1, wherein adjusting the size of the display area of the target display content in the first display interface comprises:

3. The synchronous display method according to claim 2, wherein:

the size of the second display area of the target display content in the first display interface after adjustment is larger than the size of the first display area of the target display content in the first display interface before adjustment.

4. The synchronous display method of claim 2, wherein adjusting the size of the display area of the target display content in the first display interface comprises:

5. The synchronous display method of claim 2, wherein adjusting the size of the display area of the target display content in the first display interface comprises:

6. The synchronous display method of claim 2, wherein adjusting the size of the display area of the target display content in the first display interface comprises:

clearing all display contents in the first display interface;

according to the size of the target display content in the first display area of the first display interface and the size of the first display interface, the size of a second display area of the target display content in the first display interface is calculated, the target display content is redrawn according to the size of the second display area, and the target display content is displayed in the first display interface.

7. The synchronous display method of claim 6, wherein the redrawing of the target display content according to the size of the second display area, displayed in the first display interface, comprises:

8. The synchronized display method of claim 3, further comprising:

9. The synchronous display method of claim 8, wherein the adjusting the second display area of the target display content to a preset area in the first display interface comprises:

10. The synchronous display method according to claim 9, wherein the preset area is a central area of the first display interface.

11. The synchronous display method according to claim 1, wherein:

under the condition that the target content is not displayed in the first display interface, recording the size of the area occupied by the selected display content in the second display interface after zooming according to a preset zooming scale as the size of the first display area;

12. The synchronous display method according to any one of claims 1 to 11, wherein the method is applied to a slave display device, the slave display device is connected with a master display device, and the slave display device is used for synchronously displaying the display content in the display interface of the master display device; the first display interface is a display interface of the slave display device, and the second display interface is a display interface of the master display device.

13. The synchronous display method according to claim 12, wherein:

the slave display device receives a selected operation of the master display device; determining display content corresponding to the selection operation as target display content of a first display interface, wherein the display content corresponding to the selection operation is part of display content in a display interface of the main display equipment;

14. The synchronous display method according to any one of claims 1-11, wherein the determining the target display content of the first display interface comprises:

15. The synchronous display method of claim 14, wherein obtaining identification information for identifying the selected display content in the second display interface comprises:

responding to a selection instruction of the second display interface;

and acquiring the identification information of the object.

16. The synchronous display method according to any one of claims 1-11, wherein the determining the target display content of the first display interface comprises:

17. The synchronous display method according to claim 16, wherein:

judging that ink appears in the display content in the first display interface by acquiring an operation instruction of ink generation of the second display interface; alternatively, the first and second electrodes may be,

18. The synchronous display method according to claim 17, wherein:

under the condition that the display content in the first display interface is judged to have ink marks by acquiring an operation instruction for generating ink marks on the second display interface, the acquired operation instruction for generating ink marks on the second display interface is that the second display interface receives frame selection operation; or the obtained operation instruction of the second display interface for generating ink is that the second display interface receives a pressing operation on the display screen, and the pressing operation lasts for a preset time and generates a preset displacement.

19. The synchronous display method according to claim 18, wherein:

the method comprises the steps that when the pressing operation of a display screen is received through a second display interface, and the condition that ink appears in display content in a first display interface is judged, whether the type of the ink is underline or not is judged;

20. The synchronous display method according to claim 17, wherein:

under the condition that the ink is generated in the display content in the first display interface is judged by detecting the operation instruction of the ink generated in the first display interface, the obtained operation instruction of the ink generated in the first display interface is the frame selection operation sent by the obtained second display interface; or the pressing operation on the display screen, which is sent by the second display interface, lasts for a preset time and generates a preset displacement.

21. The synchronous display method according to claim 20, wherein:

under the condition that the display content in the first display interface is judged to have ink marks by obtaining the pressing operation of the display screen sent by the second display interface, judging whether the type of the ink marks is underline;

22. The synchronous display method according to claim 19 or 21, wherein:

under the condition that the ink is a frame, displaying content corresponding to the position of the ink is content located in the frame and/or content located in a preset range around the frame;

23. The synchronized display method of any one of claims 1-11, wherein prior to said determining the target display content for the first display interface, the method further comprises:

24. A synchronous display device, characterized in that the device comprises:

25. A synchronous display device as claimed in claim 24, wherein:

26. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 22.

27. An electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 22.