CN114185472B

CN114185472B - Slide show method, slide show device, electronic equipment and storage medium

Info

Publication number: CN114185472B
Application number: CN202111543340.5A
Authority: CN
Inventors: 吉妙通; 毕宇晴
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: 2020-12-16
Filing date: 2021-12-16
Publication date: 2024-04-30
Anticipated expiration: 2041-12-16
Also published as: CN114185472A

Abstract

The embodiment of the application provides a slide show method, a slide show device, electronic equipment and a storage medium, which are applied to a system comprising a first display interface and a second display interface, wherein the second display interface is connected with the first display interface and synchronously shows a first slide with the first display interface; the method comprises the following steps: determining target display content of the second display interface and showing information of the target display content; wherein the screening message includes a specified screening mode; the target display content is determined according to the selected content in the first display interface; and displaying the target display content on the second display interface according to the designated display mode. By applying the technical scheme provided by the embodiment of the application, the slide show sequence or animation effect can be flexibly adjusted.

Description

Slide show method, slide show device, electronic equipment and storage medium

The present application claims priority from chinese patent office, application number 202011494332.1, entitled "a slide show method, apparatus, electronic device, and storage medium," filed on 12/16 th 2020, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of presentation technologies, and in particular, to a slide show method, a slide show device, an electronic device, and a storage medium.

Background

With the development of computer technology, manuscript demonstration is increasingly widely applied to working scenes such as education, work report, product display and the like. In order to obtain better presentation effect, in the slide editing mode, the user adds animation effect and showing sequence to the objects on each slide in the manuscript. Thus, in the slide show mode, the master shows each slide according to the animation effect and the show sequence set in advance, and the slave shows each slide according to the animation effect and the show sequence set in advance.

At present, in a slide show mode, a host computer and a slave computer can only show slides according to preset animation effects and a show sequence, and the show sequence or the animation effects of the slides cannot be flexibly adjusted according to actual lecture requirements.

Disclosure of Invention

An object of an embodiment of the present application is to provide a slide show method, apparatus, electronic device, and storage medium, so as to flexibly adjust a slide show sequence or an animation effect. The specific technical scheme is as follows:

In a first aspect, an embodiment of the present application provides a slide show method, which is applied to a system including a first display interface and a second display interface, where the second display interface is connected to the first display interface, and is used for synchronously showing a first slide with the first display interface; the method comprises the following steps:

Determining target display content of a second display interface and showing information of the target display content; wherein the screening message includes a specified screening mode; the target display content is determined according to the content selected in the first display interface;

And according to the specified showing mode, showing the target display content on the second display interface.

Optionally, the target display content is a content obtained by redrawing the content selected in the first display interface; and the target display content is overlapped on the first slide to be displayed.

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

acquiring a first clicking operation in the first display interface;

acquiring information of a first object in the first slide displayed on the first display interface under the condition that the first click operation selects the first object;

And redrawing the object according to the information of the first object, and displaying the redrawn object in a superposition manner on the first slide displayed on the second display interface.

Optionally, after the first clicking operation is acquired, the method further includes:

Judging whether the first clicking operation selects a first object in the first slide displayed on a first display interface or not, wherein the judging comprises the following steps:

Acquiring a first screen coordinate corresponding to the first click operation in the first display interface; the first screen coordinates are coordinates in a screen coordinate system of the first display interface;

converting the first screen coordinates into first logic coordinates, wherein the first logic coordinates are coordinates corresponding to the first screen coordinates in a slide coordinate system of the first slide;

And under the condition that the first logical coordinates are in a first object coordinate range, determining that the first clicking operation selects a first object in the first slide displayed by the first display interface.

Optionally, the redrawing the object according to the information of the first object includes:

According to the calibration relation between the screen coordinate system of the first display interface and the slide coordinate system, converting the first screen coordinate into a first logic coordinate, wherein the first logic coordinate is a coordinate corresponding to the first screen coordinate in the slide coordinate system;

And redrawing the first object according to the first logic coordinates and the specified showing mode.

Optionally, the converting the first screen coordinate to a first logical coordinate according to the calibration relation between the screen coordinate system of the first display interface and the slide coordinate system includes:

Selecting one object from a plurality of objects on the first slide as a first object in the case that the plurality of objects exist at the first screen coordinates;

And converting the first screen coordinate into a first logic coordinate of the first object according to the calibration relation between the screen coordinate system of the first display interface and the slide coordinate system.

Optionally, the selecting an object from the plurality of objects as the first object includes:

and selecting an object on a layer closest to a screen of the first display interface from the plurality of objects as a first object.

Optionally, the method further comprises:

acquiring a second click operation in the first display interface;

Generating a cancel instruction for a first object in the first slide displayed on the first display interface under the condition that the second click operation selects the first object or under the condition that the second click operation selects a blank position on the first display interface;

and canceling the target display content projected on the second display interface according to the cancellation instruction.

Optionally, the generating, in a case that the second click operation selects the first object in the first slide displayed on the first display interface or in a case that the second click operation selects a blank position on the first display interface, a cancel instruction for the first object includes:

Acquiring a second screen coordinate of the second click operation, wherein the second screen coordinate is a coordinate under a screen coordinate system of the first display interface;

Generating a cancel instruction for the first object in a case where the first object on the first slide exists at the second screen coordinates or in a case where the object on the first slide does not exist at the second screen coordinates.

Optionally, after the second click operation is acquired, the method further includes:

acquiring information of a second object in the first slide displayed on the first display interface under the condition that the second object is selected by the second clicking operation, wherein the second object is determined according to the selected content in the first display interface;

and redrawing the object according to the information of the second object, and displaying the redrawn object in a superposition manner on the first slide displayed on the second display interface.

Optionally, in the case that the specified projection mode is an enlarged mode, the redrawing the first object according to the first logical coordinates and the specified projection mode includes:

and redrawing the first object matched with the screen size of the slave computer at the first logic coordinates according to the enlargement mode.

Optionally, in the case that the specified projection mode is a highlight mode, the redrawing the first object according to the first logical coordinates and the specified projection mode includes:

superposing a semitransparent layer on the first object on the first slide at the first logical coordinate, wherein the semitransparent layer is equal to the first object in size or the difference in size between the semitransparent layer and the first object is smaller than a first preset threshold; or (b)

A transparent layer is overlapped on the first slide, wherein the size of the transparent layer is equal to that of the first slide, or the difference value between the transparent layer and the first slide is smaller than a second preset threshold value; and superposing a semitransparent layer at the position of the first object at the first logical coordinate on the transparent layer, wherein the semitransparent layer is equal to the first object in size or the difference in size between the semitransparent layer and the first object is smaller than a first preset threshold.

Optionally, the first display interface corresponds to a screen of the host, and the second display interface corresponds to a screen of the host.

In a second aspect, an embodiment of the present application provides a slide show method, applied to a host, where the host is connected to a slave, and a first display interface of the host and a second display interface of the slave synchronously display a first slide, where the method includes:

selecting a first object in the first slide on the first display interface, and acquiring a showing message of the first object; the screening message includes a designated screening mode;

And sending the showing message of the first object to the slave so that the slave determines target display content according to the showing message of the first object and shows the target display content on the second display interface according to the appointed showing mode.

Optionally, the selecting the first object in the first slide on the first display interface includes:

acquiring a first click operation at a first screen coordinate on the first display interface, wherein the first screen coordinate is a coordinate under a screen coordinate system of the first display interface;

and determining to select the first object in the first slide in the condition that the first screen coordinates are in the coordinate range of the first object in the first slide.

Optionally, the determining to select the first object in the first slide if the first screen coordinates are within the coordinate range of the first object in the first slide includes:

And selecting one object from the plurality of objects as a first object in the selected first slide in the case that the first screen coordinates are within the coordinate range of the plurality of objects in the first slide.

Optionally, the sending the projection message of the first object to the slave includes:

according to the calibration relation between the screen coordinate system of the first display interface and the slide coordinate system, converting the first screen coordinate into a first logic coordinate, wherein the first screen coordinate is a coordinate under the screen coordinate system of the first display interface, and the first logic coordinate is a coordinate under the slide coordinate system;

And transmitting the first logic coordinates and the specified projection mode to the slave.

Optionally, the method further comprises:

acquiring a second click operation in the first display interface;

And sending a cancel instruction of the first object to the slave computer under the condition that the first object in the first slide is selected by the second click operation or the blank position on the first display interface is selected by the second click operation, so that the slave computer cancels the target display content which is shown on the second display interface according to the specified showing mode according to the cancel instruction.

And under the condition that the second object in the first slide is selected by the second clicking operation, sending a switching instruction of the second object to the slave machine, so that the slave machine redetermines target display contents according to the switching instruction, and displaying the redetermined target display contents on the second display interface according to a designated showing mode.

Optionally, the first slide is in a showing mode or an editing mode.

In a third aspect, an embodiment of the present application provides a slide show method, applied to a slave, where the slave is connected to a master, and a second display interface of the slave and a first display interface of the master synchronously display a first slide, where the method includes:

Receiving a showing message of a first object sent by the host, wherein the showing message is a message sent after the first object in the first slide is selected on the first display interface; wherein the screening message includes a specified screening mode;

Determining target display content on the first slide displayed on the second display interface according to the showing message of the first object;

Optionally, the projection message further includes a first logical coordinate of the first object, where the first logical coordinate is a coordinate under a slide coordinate system;

The determining, according to the showing message of the first object, the target display content on the first slide displayed by the second display interface includes:

According to the calibration relation between the screen coordinate system of the second display interface and the slide coordinate system, converting the first logic coordinate into a third screen coordinate, wherein the third screen coordinate is a coordinate under the screen coordinate system of the second display interface;

And determining to select the first object in the first slide when the third screen coordinates are within the coordinate range of the first object in the first slide.

Optionally, the determining to select the first object in the first slide when the third screen coordinates are within the coordinate range of the first object in the first slide includes:

And selecting one object from the plurality of objects as a first object in the selected first slide when the third screen coordinates are within the coordinate range of the plurality of objects in the first slide.

Optionally, in the case that the specified showing mode is the zoom-in mode, the determining, according to the showing message of the first object, the target display content on the first slide displayed on the second display interface includes:

Acquiring data of the first object on the first slide according to the showing information of the first object;

and redrawing the first object matched with the size of the first display interface on the first slide according to the zoom-in mode.

Optionally, in the case that the specified showing mode is a highlighting mode, the step of determining, according to the showing message of the first object, target display content on the first slide displayed on the second display interface includes:

Superimposing a semitransparent layer on the first object of the first slide according to the showing message of the first object; or, a transparent layer is overlapped on the first slide, and a semitransparent layer is overlapped at the position of the first object on the transparent layer;

the size of the semitransparent layer is equal to that of the first object, or the size difference value of the semitransparent layer and the first object is smaller than a first preset threshold value;

The transparent layer is equal to the first slide in size, or the difference in size between the transparent layer and the first slide is smaller than a second preset threshold.

Optionally, the method further comprises:

Receiving a cancel instruction of the first object sent by the host, wherein the cancel instruction is a sent instruction when the first object in the first slide is selected again on the first display interface or a blank position on the first display interface is selected;

And canceling the target display content to be shown on the second display interface according to the cancellation instruction.

Optionally, the method further comprises:

receiving a switching instruction sent by the host, wherein the switching instruction is a sent instruction under the condition that a second object in the first slide is selected on the first display interface;

according to the switching instruction, re-determining target display contents on the first slide displayed on the second display interface;

and according to the specified showing mode, showing the redefined target display content on the second display interface.

Optionally, the first slide is in a showing mode or an editing mode.

In a fourth aspect, an embodiment of the present application provides a slide show device, which is applied to a system including a first display interface and a second display interface, where the second display interface is connected to the first display interface and is used for synchronously showing a first slide with the first display interface; the device comprises:

A determining unit, configured to determine target display content of a second display interface and a projection message of the target display content; wherein the screening message includes a specified screening mode; the target display content is determined according to the content selected in the first display interface;

and the projection unit is used for projecting the target display content on the second display interface according to the specified projection mode.

Optionally, the determining unit is specifically configured to:

acquiring a first clicking operation in the first display interface;

Optionally, the determining unit is further configured to: after the first clicking operation is acquired, judging whether the first clicking operation selects a first object in the first slide displayed on a first display interface or not, wherein the method specifically comprises the following steps:

Optionally, the determining unit is specifically configured to:

Optionally, the apparatus further includes:

the first acquisition unit is used for acquiring a second click operation in the first display interface;

a generating unit, configured to generate a cancel instruction for a first object in the first slide displayed on the first display interface in a case where the second click operation selects the first object or in a case where the second click operation selects a blank position on the first display interface;

And the cancelling unit is used for cancelling the target display content projected on the second display interface according to the cancelling instruction.

Optionally, the generating unit is specifically configured to:

acquiring a second screen coordinate corresponding to the second click operation, wherein the second screen coordinate is a coordinate under a screen coordinate system of the first display interface;

Optionally, the apparatus further includes:

the second obtaining unit is used for obtaining information of a second object in the first slide displayed on the first display interface when the second object is selected by the second clicking operation after the second clicking operation is obtained, and the second object is determined according to the selected content in the first display interface;

and the drawing unit is used for redrawing the object according to the information of the second object and displaying the redrawn object in a superposition mode on the first slide displayed on the second display interface.

Optionally, the drawing unit is specifically configured to:

And redrawing the first object matched with the screen size of the slave computer at the first logic coordinates according to the zoom-in mode when the designated showing mode is the zoom-in mode.

Optionally, the drawing unit is specifically configured to:

Superimposing a semi-transparent layer on the first object at the first logical coordinates on the first slide in a case that the specified showing mode is a highlighting mode, wherein the semi-transparent layer is equal in size to the first object or a difference in size between the semi-transparent layer and the first object is smaller than a first preset threshold; or (b)

When the designated showing mode is a highlighting mode, a transparent layer is overlapped on the first slide, wherein the transparent layer is equal to the first slide in size, or the difference value between the transparent layer and the first slide in size is smaller than a second preset threshold; and superposing a semitransparent layer at the position of the first object at the first logical coordinate on the transparent layer, wherein the semitransparent layer is equal to the first object in size or the difference in size between the semitransparent layer and the first object is smaller than a first preset threshold.

In a fifth aspect, an embodiment of the present application provides a slide show device applied to a host, where the host is connected to a slave, and a first display interface of the host and a second display interface of the slave synchronously display a first slide, where the device includes:

A first obtaining unit, configured to select a first object in the first slide on the first display interface, and obtain a projection message of the first object; the screening message includes a designated screening mode;

And the first sending unit is used for sending the showing message of the first object to the slave machine so that the slave machine determines target display content according to the showing message of the first object and shows the target display content on the second display interface according to the appointed showing mode.

Optionally, the first obtaining unit is specifically configured to:

Optionally, the first sending unit is specifically configured to:

Optionally, the apparatus further includes:

the second acquisition unit is used for acquiring a second click operation in the first display interface;

A second transmitting unit configured to: and sending a cancel instruction of the first object to the slave computer under the condition that the first object in the first slide is selected by the second click operation or the blank position on the first display interface is selected by the second click operation, so that the slave computer cancels the target display content which is shown on the second display interface according to the specified showing mode according to the cancel instruction.

Optionally, the apparatus further includes:

And the third sending unit is used for sending a switching instruction of the second object to the slave machine when the second object in the first slide is selected by the second click operation after the second click operation is acquired, so that the slave machine can redetermine the target display content according to the switching instruction, and the redetermined target display content is shown on the second display interface according to a designated showing mode.

Optionally, the first slide is in a showing mode or an editing mode.

In a sixth aspect, an embodiment of the present application provides a slide show device applied to a slave, where the slave is connected to a master, and a second display interface of the slave and a first display interface of the master synchronously display a first slide, where the device includes:

The first receiving unit is used for receiving a showing message of a first object sent by the host, wherein the showing message is a message sent after the first object in the first slide is selected on the first display interface; wherein the screening message includes a specified screening mode;

a first determining unit, configured to determine, according to a presentation message of the first object, target display content on the first slide displayed on the second display interface;

and the first showing unit is used for showing the target display content on the second display interface according to the specified showing mode.

the first determining unit is specifically configured to:

Optionally, the first determining unit is specifically configured to:

acquiring data of the first object on the first slide according to the showing message of the first object under the condition that the designated showing mode is an enlarged mode;

Optionally, the first determining unit is specifically configured to:

in the case that the specified showing mode is a highlighting mode, according to a showing message of the first object, a semitransparent layer is overlapped on the first object of the first slide; or, a transparent layer is overlapped on the first slide, and a semitransparent layer is overlapped at the position of the first object on the transparent layer;

Optionally, the apparatus further includes:

The second receiving unit is used for receiving a cancel instruction of the first object sent by the host, wherein the cancel instruction is a sent instruction when the first object in the first slide is selected again on the first display interface or a blank position on the first display interface is selected;

And the cancelling unit is used for cancelling the target display content from being shown on the second display interface according to the cancelling instruction.

Optionally, the apparatus further includes:

The third receiving unit is used for receiving a switching instruction sent by the host, wherein the switching instruction is a sent instruction when a second object in the first slide is selected on the first display interface;

A second determining unit, configured to re-determine, according to the switching instruction, target display content on the first slide displayed on the second display interface;

and the second showing unit is used for showing the redetermined target display content on the second display interface according to the specified showing mode.

Optionally, the first slide is in a showing mode or an editing mode.

In a seventh aspect, an embodiment of the present application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;

the memory is used for storing a computer program;

The processor is configured to implement any of the slide show method steps provided in the first aspect, the second aspect, or the third aspect when executing the program stored in the memory.

In an eighth aspect, an embodiment of the present application provides a computer readable storage medium having stored therein a computer program which, when executed by a processor, implements any of the slide show method steps provided in the first aspect or the second aspect or the third aspect.

An embodiment of the present application also provides a computer program which, when run on a computer, causes the computer to perform any of the slide show method steps provided in the first aspect or the second aspect or the third aspect.

The embodiment of the application has the beneficial effects that:

In the technical scheme provided by the embodiment of the application, under the condition that the first slide is synchronously shown on the first display interface and the second display interface, the target display content of the second display interface is determined according to the content selected by the first display interface, the showing message of the target display content is determined, and then the target display content is shown on the second display interface based on the appointed showing mode included in the showing message. Therefore, in the embodiment of the application, the second display interface is used for flexibly showing the appointed content according to the appointed showing mode based on the content selected by the first display interface by the showing mode of the non-mirror image projection screen between the first display interface and the second display interface, and the aim of flexibly adjusting the showing sequence or the animation effect of the slide is achieved.

Of course, it is not necessary for any one product or method of practicing the application to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a slide show system according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a first flow of a slide show method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a host screen according to an embodiment of the present application;

Fig. 4 is a second flowchart of a slide show method according to an embodiment of the present application;

FIG. 5 is another schematic diagram of a host screen according to an embodiment of the present application;

fig. 6 is a third flow chart of a slide show method according to an embodiment of the present application;

fig. 7 is a fourth flowchart of a slide show method according to an embodiment of the present application;

fig. 8 is a fifth flowchart of a slide show method according to an embodiment of the present application;

fig. 9 is a sixth flowchart of a slide show method according to an embodiment of the present application;

FIG. 10a is a schematic diagram of a slave screen according to an embodiment of the present application;

FIG. 10b is an enlarged schematic view of an object based on the slave screen shown in FIG. 10 a;

FIG. 11 is a seventh flowchart of a slide show method according to an embodiment of the present application;

FIG. 12 is a schematic illustration of an object highlighting based on the slave screen shown in FIG. 10 a;

fig. 13 is a schematic diagram of an eighth flow chart of a slide show method according to an embodiment of the present application;

Fig. 14 is a ninth flowchart of a slide show method according to an embodiment of the present application;

fig. 15 is a tenth flowchart of a slide show method according to an embodiment of the present application;

fig. 16 is a schematic view of a first configuration of a slide show device according to an embodiment of the present application;

fig. 17 is a schematic diagram of a second configuration of a slide show device according to an embodiment of the present application;

Fig. 18 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

For ease of understanding, the words appearing in the embodiments of the application are explained below.

The object is: content inserted on the slide show. Objects include, but are not limited to, text, charts, formulas, pictures, and the like.

Screen coordinate system: and establishing a coordinate system on the screens of the first display interface and the second display interface. The origin of the screen coordinate system may be any point on the screen. In the embodiment provided by the application, the origin of the screen coordinate system is the point in the upper left corner of the screen. This may facilitate unified management of coordinates on different screens. The coordinates under the screen coordinate system are referred to as screen coordinates.

The first display interface and the second display interface can be display interfaces corresponding to computers, tablets, mobile phones or other electronic equipment capable of performing screen display. The first display interface and the second display interface may be interfaces corresponding to different display screens in the same electronic device, or may be display interfaces corresponding to different electronic devices. In the embodiment provided by the invention, the first display interface is taken as a display interface of a host, and the second display interface is taken as a display interface of a slave, which is described by way of example and not limitation.

Slide coordinate system: a coordinate system is established on the slide. The origin of the slide coordinate system may be any point on the slide. In the embodiment provided by the application, the origin of the slide may be the point in the top left corner of the slide. This may facilitate unified management of coordinates on different slides. The coordinates in the slide coordinate system are referred to as logical coordinates.

In the embodiment of the application, the screen coordinate systems of the first display interface and the second display interface can be the same or different. And the first display interface and the second display interface synchronously show the same slide, namely the first slide, so that slide coordinate systems corresponding to the first display interface and the second display interface are the same.

To compensate for the above-mentioned deficiency, to meet the actual lecture demand, a slide show can be performed in the following two ways.

First slide show mode: the master and the slaves show the slides according to the animation effects and the showing sequence set in advance. The user uses the laser pen, and through gesture touch, the focal point coordinate of the laser pen is moved, so that the focal point coordinate falls on the position of the target object on the slide.

In the slide show mode, the focus of the laser pen is smaller, and the position of the target object cannot be accurately indicated; through gesture touch, it is difficult to accurately change the focal coordinates of the laser pen, and if abnormal communication connection is encountered, a delay in position synchronization may be caused, which makes it more difficult to accurately change the focal coordinates of the laser pen.

Second slide show mode: the master and the slaves show the slides according to the animation effects and the showing sequence set in advance. The user zooms or moves the page of the entire slide by gesture touch.

According to the slide show mode, the scaling of the slide page cannot be accurately controlled in a gesture touch mode, a screen cannot be perfectly adapted, the screen is easily distorted, and the display effect is poor.

In order to flexibly adjust the showing sequence or animation effect of the slides according to the actual speech demand, the embodiment of the application provides a slide showing method which is applied to a system comprising a first display interface and a second display interface, wherein the second display interface is connected with the first display interface and synchronously shows the first slides with the first display interface; as shown in fig. 2, the method includes:

In the embodiment of the application, in the playing mode, the target display content can be overlapped on the current playing interface of the first slide, the first page of the playing interface or any playing page.

Optionally, the target display content is a content obtained by redrawing the selected content in the first display interface; and the target display content is overlapped on the first slide to be displayed.

Optionally, the determining the target display content of the second display interface may include:

Acquiring a first clicking operation in a first display interface;

Acquiring information of a first object in a first slide displayed on a first display interface under the condition that the first clicking operation selects the first object;

Optionally, after the first click operation is acquired, the slide show method may further include: the determining whether the first clicking operation selects the first object in the first slide displayed on the first display interface may specifically include:

acquiring a first screen coordinate corresponding to a first click operation in a first display interface; the first screen coordinates are coordinates in a screen coordinate system of the first display interface;

converting the first screen coordinates into first logic coordinates, wherein the first logic coordinates are coordinates corresponding to the first screen coordinates in a slide coordinate system;

And under the condition that the first logical coordinates are in the first object coordinate range, determining that the first clicking operation selects a first object in a first slide displayed on the first display interface.

In the embodiment of the present application, the first object coordinate range may be understood as: in the slide coordinate system, the first object occupies a region including a coordinate range composed of points.

Optionally, determining whether the first click operation selects the first object in the first slide displayed on the first display interface may specifically include:

Acquiring a first screen coordinate corresponding to a first click operation in a first display interface;

and under the condition that the first screen coordinates are in the first object coordinate range, determining that the first clicking operation selects a first object in a first slide displayed on the first display interface.

In the embodiment of the present application, the first object coordinate range may be understood as: and under the screen coordinate system of the first display interface, the first object occupies a coordinate range formed by all points included in the area.

In the embodiment of the present application, whether the first click operation selects the first object in the first slide displayed on the first display interface may also be determined by other manners, which is not limited.

Optionally, redrawing the object according to the information of the first object; may include:

According to the calibration relation between a screen coordinate system of a first display interface and a slide coordinate system, converting the first screen coordinate into a first logic coordinate, wherein the first logic coordinate is a coordinate corresponding to the first screen coordinate in the slide coordinate system;

And obtaining a first logic coordinate, redrawing the first object according to the first logic coordinate and a designated showing mode of the first object, and showing the first object at the first logic coordinate on the first slide.

Optionally, the first display interface corresponds to a screen of the host, the second display interface corresponds to a screen of the host, and converting the first screen coordinate to the first logical coordinate according to a calibration relationship between a screen coordinate system of the first display interface and a slide coordinate system may include:

In the embodiment of the present application, a plurality of objects exist at the first screen coordinates, which can be understood as: in a screen coordinate system of the first display interface, the first screen coordinates are within a plurality of object coordinate ranges. There are a plurality of objects at the first screen coordinates, which can be understood as: in the slide coordinate system, the first logical coordinates corresponding to the first screen coordinates are in a plurality of object coordinate ranges.

Optionally, the selecting an object from the plurality of objects as the first object may include:

Optionally, the slide show method further includes:

acquiring a second click operation in the first display interface;

In the embodiment of the present application, the method for determining that the second click operation selects the object in the first slide displayed on the first display interface may refer to the method for determining that the first click operation selects the first object in the first slide displayed on the first display interface, which is not described herein.

When it is determined that the second click operation selects any object in the first slide displayed on the first display interface, it may be determined that the second click operation selects a blank position on the first display interface.

Optionally, generating the cancel instruction for the first object may include:

acquiring clicking operation of a user at a second screen coordinate, wherein the second screen coordinate is a coordinate under a screen coordinate system of the first display interface;

In the embodiment of the application, the click operation of the user at the second screen coordinate is obtained, namely the second screen coordinate corresponding to the second click operation is obtained. The understanding that the object exists at the second screen coordinates may refer to the understanding that the object exists at the first screen coordinates, which is not described herein.

Generating a cancel instruction for the first object in a case where the first object on the first slide exists at the second screen coordinates or in a case where the object on the first slide does not exist at the second screen coordinates, and canceling the first object to be presented on a second display interface in a specified presentation mode according to the cancel instruction.

In the embodiment of the present application, the overlapping display of the redrawn object on the first slide displayed on the second display interface may be: and removing the originally drawn first object, and superposing the redrawn second object on the first slide displayed on the second display interface.

The first slide displayed on the second display interface is overlapped with the redrawn object, which may also be: while the original drawn first object is retained, a redrawn second object is superimposed on the original drawn first object.

Optionally, the projection mode includes a zoom-in mode and a highlight mode.

In the embodiment of the present application, the redrawing the first object according to the first logical coordinate and the specified projection mode may be understood as follows: and redrawing the object according to the first logical coordinates and the specified showing mode of the first object, and then showing the first object on the first slide at the first logical coordinates.

Optionally, in the case that the specified showing mode is the zoom-in mode, the step of redrawing the object according to the specified showing mode of the first logical coordinate and the first object, and showing the first object on the first slide at the first logical coordinate, that is, redrawing the first object according to the first logical coordinate and the specified showing mode, may include:

Optionally, in the case that the specified showing mode is a highlight mode, the step of redrawing the object according to the specified showing mode of the first logical coordinate and the first object, and showing the first object on the first slide at the first logical coordinate, that is, redrawing the first object according to the first logical coordinate and the specified showing mode, may include:

Superimposing a semi-transparent layer on the first object at the first logical coordinates on the first slide; the size of the semitransparent layer is equal to that of the first object, or the size difference value of the semitransparent layer and the first object is smaller than a first preset threshold value; the difference between the sizes of the semitransparent layer and the first object may be a difference between the lengths or widths of the semitransparent layer and the first object, or may be an area difference between the semitransparent layer and the first object, or may be a minimum difference or a maximum difference between the horizontal/vertical coordinates of points corresponding to the semitransparent layer and the first object, which is not limited herein. The first preset threshold value can be set according to the display requirement of the object, and can be acquired from the system according to the display inertia of the object in the document.

Optionally, in the case that the specified projection mode is a highlight mode, the redrawing the first object according to the first logical coordinates and the specified projection mode may include:

A transparent layer is overlapped on the first slide, and the transparent layer is equal to the first slide in size; or the size difference value between the transparent layer and the first slide is smaller than a second preset threshold value;

And superposing a semitransparent layer at the position of the first object at the first logical coordinate on the transparent layer, wherein the semitransparent layer is equal to the first object in size, or the difference value of the semitransparent layer and the first object in size is smaller than a first preset threshold value.

The difference between the transparent layer and the first slide may be a difference between the transparent layer and the first slide, or a difference between the transparent layer and the first slide, which is not limited herein. The second preset threshold value can be set according to the display requirement of the slide, and can be acquired from the system according to the display inertia of the slide in the document.

Optionally, the slide show method further includes:

Receiving a cancel instruction sent by the host; the cancel instruction is an instruction sent by the host computer in a case of acquiring a click operation of a user at a second screen coordinate, wherein the click operation exists the first object on the first slide at the second screen coordinate, or the click operation does not exist the object on the first slide at the second screen coordinate.

And according to a cancel instruction, canceling the first object to be projected according to the specified projection mode.

Corresponding to the above slide show method, the embodiment of the present application also provides a slide show system, which includes a master 11 and a slave 12 as shown in fig. 1. A slide show system may include one or more slaves 12, only one slave 12 being illustrated here by way of example and not by way of limitation.

The master 11 is a master, and is used for synchronizing slides to each slave 12 and controlling each slave 12 to synchronously show slides.

The slave 12 is a receiving end for receiving slides synchronized by the host 11 and synchronizing slides based on control of the host 11.

In the embodiment of the present application, for ease of understanding, the present example of synchronously showing the first slide by the master 11 and the slave 12 is described below, which is not limiting.

The host 11 acquires click operation of a user at a first screen coordinate, wherein the first screen coordinate is a coordinate under a screen coordinate system of the host 11; if a first object on the first slide exists at the first screen coordinate, converting the first screen coordinate into a first logic coordinate according to the calibration relation between the screen coordinate system of the host 11 and the slide coordinate system, wherein the first logic coordinate is the coordinate of the first object under the slide coordinate system; the first logical coordinates and the specified projection mode of the first object are transmitted to the slave 12.

The slave 12 plays the first object at the first logical coordinates on the first slide in accordance with the specified play mode.

In the technical scheme provided by the embodiment of the application, the host acquires clicking operation at the first screen coordinate, further determines the first logic coordinate of the first object to be projected currently based on the first screen coordinate, and sends the first logic coordinate and the appointed projection mode to the slave. Thus, the slave can present the first object at the first logical coordinates in accordance with the specified presentation mode. Therefore, in the embodiment of the application, the host and the slave realize the click operation of the slave based on the user through the non-mirror projection mode, flexibly project the appointed object according to the appointed projection mode, and flexibly adjust the projection sequence or the animation effect of the slide.

Based on the slide show system, the embodiment of the application also provides a slide show method which is applied to the host, and the slave connected with the host synchronously shows the first slide with the host. The method comprises the following steps.

Step S21, obtaining clicking operation of a user at a first screen coordinate, wherein the first screen coordinate is a coordinate under a screen coordinate system of a host computer.

In the embodiment of the present application, in the slide show mode, when the user needs to highlight a certain object (for example, the first object) on the first slide, the user clicks any point in the area where the first object is located on the screen of the host, and the coordinates of the point in the screen coordinate system of the host may be the first screen coordinates. At this time, the host computer may acquire a click operation of the user at the first screen coordinates.

Specifically, the step S21 may be: the host computer obtains click operation of a point on the screen by a user, determines a first distance between the point and an origin of a screen coordinate system in an abscissa direction, and determines a second distance between the point and the origin of the screen coordinate system in an ordinate direction. The host computer takes the first distance as the abscissa of the point and the second distance as the ordinate of the point, so as to obtain the first screen coordinate of the point.

In the embodiment of the application, when the screen of the host is a touch screen, a user can directly click the screen of the host, so that the host obtains clicking operation aiming at the first screen coordinate; when the screen of the host is a non-touch screen, a user can click the screen of the host through input equipment such as a mouse, a keyboard and the like, so that the host obtains clicking operation aiming at the first screen coordinate. In the embodiment of the present application, the host may acquire the clicking operation for the first screen coordinate in other manners, which is not limited.

Step S22, if there is a first object on the first slide at the first screen coordinate, the first screen coordinate is converted into a first logical coordinate according to the calibration relation between the screen coordinate system of the host computer and the slide coordinate system.

In the embodiment of the application, in the slide show mode, when the host computer shows the first slide, if the clicking operation is acquired, a clicking test is performed to determine the first object. Specifically, the click test process is: it is detected whether an object on the first slide is present at the first screen coordinates. If the object on the first slide exists, namely the first object, the host computer converts the first screen coordinate into the first logic coordinate according to the calibration relation between the screen coordinate system of the host computer and the slide coordinate system. If there is no object on the first slide, i.e., the user clicks on the blank, the host does not do any processing.

In one embodiment of the application, the area occupied by the object on the slide is a rectangular box, which can be determined by coordinates of 4 vertices. In this case, the click test procedure is: for each object on the first slide, the host detects whether the first screen coordinates are within the area occupied by the object. If the first screen coordinates are within the area occupied by the object, the host may determine that there is an object on the first slide, i.e., a first object, at the first screen coordinates. If the first screen coordinates are not within the area occupied by any object, the host computer can determine that no object on the first slide exists at the first screen coordinates, that is, the user clicks on the blank, and the host computer does not perform any processing.

For example, a host screen as shown in fig. 3. The host screen shows a slide show. The user clicks at screen coordinate a. The vertices of the area occupied by the object a1 are b1, b2, b3, and b4, respectively. As can be seen from fig. 3, the screen coordinate a is located in the area occupied by the object a1 surrounded by b1, b2, b3, and b4. Thus, the host may determine that object a1 is the first object.

In one embodiment of the application, the area occupied by the objects on the slide is a rectangular box. In the case where it is determined that there is a first object on the first slide at the first screen coordinates, the host computer may convert the first screen coordinates into logical coordinates of vertices of an area occupied by the first object.

For example, a host screen as shown in fig. 3. The host screen shows a slide show. The user clicks at screen coordinate a. The host determines that the object a1 is the first object. The vertices of the area occupied by the object a1 are b1, b2, b3, and b4, respectively. The host computer converts the screen coordinates a into logical coordinates of 4 vertices b1, b2, b3, and b4.

In another embodiment of the present application, in the case where it is determined that the first object on the first slide exists at the first screen coordinates, the host computer may convert the first screen coordinates into logical coordinates of a center point of an area occupied by the first object.

The host screen shown in fig. 3 will be described as an example. The host screen shows a slide show. The user clicks at screen coordinate a. The host determines that the object a1 is the first object. The center point of the area occupied by the object a1 is b0. The host computer converts the screen coordinates a into logical coordinates of the center point b0.

In another embodiment of the present application, the host computer may directly convert the first screen coordinates into logical coordinates in case it is determined that there is a first object on the first slide at the first screen coordinates.

The host screen shown in fig. 3 will be described as an example. The host screen shows a slide show. The user clicks at screen coordinate a. The host directly converts the screen coordinates a into logical coordinates.

In the embodiment of the application, the host can also convert the first screen coordinates into the first logical coordinates in other manners, so long as the first object can be uniquely determined through the first logical coordinates.

For example, a host screen as shown in fig. 3. The host screen shows a slide show. The user clicks at screen coordinate a. The host determines that the object a1 is the first object. The vertices of the area occupied by the object a1 are b1, b2, b3, and b4, respectively. After the host computer converts the screen coordinates a into logical coordinates of the point a under the slide coordinate system, the host computer may also acquire logical coordinates of the 4 vertices b1, b2, b3, and b4 of the area occupied by the object a 1.

And then, the host machine simultaneously transmits the logical coordinates of the point A and the logical coordinates of the 4 vertexes b1, b2, b3 and b4 to the slave machine, so that the slave machine directly determines the occupied area of the object a1 based on the logical coordinates of the 4 vertexes b1, b2, b3 and b4, further reflects the object a1 and saves the computing resources of the slave machine.

The host screen shown in fig. 3 will be described as an example. The host screen shows a slide show. The user clicks at screen coordinate a. The host determines that the object a1 is the first object. The center point of the area occupied by the object a1 is b0. After the host computer converts the screen coordinates a into logical coordinates of the point a in the slide coordinate system, the logical coordinates of the center point b0 and the width and height of the area occupied by the object a1 can also be obtained.

And then, the host computer simultaneously transmits the logical coordinates of the point A, the logical coordinates of the center point b0 and the width and the height of the area occupied by the object a1 to the slave computer, so that the slave computer directly determines the area occupied by the object a1 based on the logical coordinates of the center point b0 and the width and the height of the area occupied by the object a1, further reflects the object a1 and saves the computing resources of the slave computer.

Step S23, transmitting the first logical coordinates and the specified showing mode of the first object to the slave so that the slave shows the first object at the first logical coordinates on the first slide according to the specified showing mode.

In embodiments of the present application, the designated projection mode may include, but is not limited to, a zoom-in mode, a highlight mode, and the like. The designated presentation mode may be a presentation mode input to the host by the user when clicking on the host screen. The projection mode input to the host computer by the user when clicking the host computer screen can be input through a voice instruction input form, a text instruction input form and an instruction input form corresponding to a specific projection mode by preset operation, and can also be input through a preset shortcut key instruction input form.

After acquiring the first logical coordinates, the host computer sends the first logical coordinates and the specified projection mode of the first object to the slave computer. In this way, the slave can acquire the first logical coordinates and specify the presentation mode, and then present the first object at the first logical coordinates on the first slide in accordance with the specified presentation mode.

In one embodiment, the master may send the first logical coordinates and the specified presentation mode of the first object to the slave in the form of an (x, y, z) message body. Where x, y represents a first logical coordinate and z represents a specified projection mode.

Furthermore, in the embodiment of the application, the slave machine can accurately determine the first object on the first slide based on the first logic coordinate, so that the problem that the focus of the laser pen is smaller and the position of the target object cannot be accurately indicated is solved. In addition, the slave directly shows the first object according to the specified showing mode based on the first logical coordinate obtained from the host, so that the coordinate of the first object can be accurately controlled, and even if communication connection is abnormal, the coordinate of the first object can be accurately controlled, and the first object can be accurately shown.

In addition, in the embodiment of the application, the slave machine shows the first object on the first slide according to the appointed showing mode, and the page of the whole slide is not required to be zoomed or moved by gesture touch, so that the first object can be adapted to the screen, the problem of picture distortion is avoided, and the display effect is improved.

In the embodiment of the application, in the slide show mode, the host supports the object clicking operation, so that the interaction fineness in the slide show mode is improved.

In addition, in the embodiment of the application, because the object clicking operation is supported and the clicking operation is responded in the slide show mode, the user can save the operation of adding the animation effect for the object on the slide in the editing process, and directly control the object on the slide in the slide show mode, thereby saving the time consumption for editing the slide. In addition, the user is not limited to the animation effect and the sequence of the slide show, and can follow the thought of the actual speech, flexibly operate the effect of the object show, and improve the expressive force of the slide show.

In the embodiment of the application, the command protocol between the cross-equipment and the cross-screen is established through the capability of the cross-equipment and the cross-screen command synchronization, so that the non-mirror image control playing is realized. The method adopts a cross-device/cross-screen non-mirror image control playing mode, so that a master can control the display of a slave screen through controlling a host screen, and each device/screen can exert an optimal presentation form.

In an embodiment of the present application, a slide show method is further provided, as shown in fig. 4, in which the above step S22 may be refined as the following steps S221 and S222.

In step S221, if there are a plurality of objects on the first slide at the first screen coordinates, one object is selected from the plurality of objects as the first object.

In an embodiment of the present application, the first slide may include a plurality of layers, and objects on each layer may overlap. If there are a plurality of objects on the first slide at the first screen coordinates, one object is selected from the plurality of objects as the first object.

For example, a host screen as shown in fig. 5. The host screen shows a slide show. The slide comprises 2 layers, one layer 1 comprising object a2 and the other layer 2 comprising object a3. There is an overlap of object a2 and object a3, as shaded in fig. 5. The user clicks at screen coordinate B. The host determines that there are an object a2 and an object a3 at screen coordinates B. The host selects one object, such as object a2, from among the objects a2 and a3 as a first object.

In one embodiment of the present application, in a case where there are a plurality of objects on the first slide at the first screen coordinates, the host selects, as the first object, an object on a layer closest to the screen of the host from among the plurality of objects.

The host screen shown in fig. 5 will be described as an example. The slide includes 2 layers, one layer 1 including an object a2 and the other layer 2 including an object a3. Wherein layer 2 is located on layer 1, i.e., object a3 covers a portion of object a2, and in this case, layer 2 is closest to the screen of the host among layer 1 and layer 2. When the user clicks at screen coordinate B, the host may determine object a3 on layer 2 as the first object.

In another embodiment of the present application, in the case where there are a plurality of objects on the first slide at the first screen coordinates, the host outputs a hint message that includes the plurality of objects. The user selects one object from the plurality of objects as a first object. The host receives a first object entered by a user.

In still another embodiment of the present application, in the case where there are a plurality of objects on the first slide at the first screen coordinates, the host may also randomly select one object from the plurality of objects as the first object.

In the embodiment of the present application, the host may also determine the first object by adopting other methods, which is not limited.

Step S222, according to the calibration relation between the screen coordinate system of the host computer and the slide coordinate system, the first screen coordinate is converted into the first logic coordinate of the first object.

After the host determines the first object, the host converts the first screen coordinate into a first logical coordinate of the first object according to the calibration relation between the screen coordinate system of the host and the slide coordinate system.

In the embodiment of the application, the host can accurately determine the first object, thereby ensuring that the slave accurately shows the first object according to the appointed showing mode.

In one embodiment of the present application, a slide show method is also provided, as shown in fig. 6, in which the following steps may be further included after step S23.

Step S24, obtaining clicking operation of a user at a second screen coordinate, wherein the second screen coordinate is a coordinate under a screen coordinate system of the host computer.

In the embodiment of the application, after the host computer sends the first logical coordinates and the specified projection mode of the first object to the slave computer, the user can click on the screen of the host computer. And the host computer further obtains clicking operation of the user at the second screen coordinates.

In step S25, if there is a first object on the first slide at the second screen coordinates or there is no object on the first slide at the second screen coordinates, a cancel instruction is transmitted to the slave so that the slave cancels the presentation of the first object in the specified presentation mode according to the cancel instruction.

In the embodiment of the application, if the host acquires the clicking operation at the second screen coordinate, the host detects whether the first object on the first slide exists at the second screen coordinate and detects whether the object on the first slide exists at the second screen coordinate. If there is a first object on the first slide at the second screen coordinates, the master transmits a cancel instruction to the slave, and the slave cancels the presentation of the first object in the specified presentation mode according to the cancel instruction. If any object on the first slide does not exist at the second screen coordinates, namely the second screen coordinates are blank, the host computer sends a cancel instruction to the slave computer, and the slave computer cancels the first object to be shown according to the specified showing mode according to the cancel instruction.

In one embodiment of the present application, the host may not do any processing if there are other objects on the first slide, such as the second object, at the second screen coordinates.

In another embodiment of the present application, the following steps may be further included after step S23: and acquiring clicking operation of the user at a second screen coordinate, wherein the second screen coordinate is a coordinate under a screen coordinate system of the host computer. In the case that the second object on the first slide exists at the second screen coordinates, the host transmits a switching instruction of the second object to the slave so that the slave redefines the target display content according to the switching instruction and displays the redefined target display content on the second display interface according to the designated display mode.

For example, in the case where there is a second object on the first slide at the second screen coordinates, the host converts the second screen coordinates into second logical coordinates according to the calibrated relationship between the screen coordinates of the host and the slide coordinates. The master sends the second logical coordinates and the specified presentation pattern of the second object to the slave so that the slave presents the second object at the second logical coordinates on the first slide in the specified presentation pattern.

In the embodiment of the application, the host flexibly controls the slave to show or stop showing the first object by acquiring the click operation of the user on the host screen, thereby further improving the flexibility of adjusting the showing sequence or animation effect of the slide.

Corresponding to the slide show method applied to the host, the embodiment of the application also provides a slide show method. The slide show method shown in fig. 7 is applied to a slave, and a master connected to the slave and the slave synchronously show a first slide, and the method comprises the following steps.

In step S71, a first logical coordinate and a specified showing mode of the first object sent by the host are received, the first logical coordinate is a coordinate of the first object under the obtained slide coordinate system, the first screen coordinate is a coordinate under the screen coordinate system indicated by the user performing the clicking operation, and the first object is an object on the first slide at the first screen coordinate.

In the embodiment of the application, a host acquires click operation of a user at a first screen coordinate, wherein the first screen coordinate is a coordinate under a screen coordinate system of the host; if a first object on the first slide exists at the first screen coordinate, converting the first screen coordinate into a first logic coordinate according to the calibration relation between the screen coordinate system of the host computer and the slide coordinate system, wherein the first logic coordinate is the coordinate of the first object under the slide coordinate system; the first logical coordinates and the specified projection mode of the first object are transmitted to the slave. In this case, the slave receives the first logical coordinates and the specified projection mode of the first object transmitted from the host.

The process of determining the first logical coordinate by the host may be as described above in connection with fig. 3-6.

Step S72, a first object at a first logical coordinate on the first slide is determined.

In the embodiment of the application, after the slave acquires the first logic coordinates and the designated showing mode, the corresponding first object on the first slide can be determined based on the first logic coordinates. In one embodiment of the present application, the first object is determined in the same manner as the first object is obtained by clicking by the host by the user, and specifically, reference may be made to the following description of fig. 8, which is not described herein.

Step S73, the first object is projected according to the specified projection mode.

In addition, in the embodiment of the application, the objects on the slide are determined based on the logical coordinates. Although the screen sizes between the slave and the host are not uniform, the sizes of slides stored at the bottom layer are uniform, so that even if the screen sizes between the slave and the host are not uniform, the same object can be positioned across devices/across screens, and further the designated object can be accurately shown.

In one embodiment of the present application, the embodiment of the present application also provides a slide show method, as shown in fig. 8, in which step S72 may be refined as the following steps S721-S723.

In step S721, the first logical coordinates are converted into third screen coordinates according to the calibration relationship between the screen coordinate system of the slave machine and the slide coordinate system.

In the embodiment of the application, the third screen coordinates are coordinates in the screen coordinate system of the slave machine. The slave acquires the first logic coordinates, and converts the first logic coordinates into third screen coordinates according to the calibration relation between the screen coordinate system of the slave and the slide coordinate system. The third screen coordinates are coordinates of the first object on the screen of the slave machine. And converting the first logical coordinates into third screen coordinates to simulate clicking operation, namely simulating a user to click a second display interface of the slave machine, wherein the screen coordinates corresponding to the clicking operation are the third screen coordinates.

In step S722, if it is determined that the object on the first slide exists at the third screen coordinate, the third screen coordinate is converted into the first logical coordinate according to the calibration relationship between the screen coordinate system of the slave machine and the slide coordinate system.

In the embodiment of the application, after the slave obtains the third screen coordinate, the third screen coordinate is converted into the first logic coordinate according to the calibration relation between the screen coordinate system of the slave and the slide coordinate system.

In an alternative embodiment, a state machine that handles click tests (which may be referred to herein as a click test handling state machine) may be provided in the slave. After the slave machine obtains the third screen coordinates, the third screen coordinates are transmitted to the click test processing state machine. The click test process state machine recognizes a user click at the third screen coordinate (i.e., obtains the third screen coordinate). The click test processing state machine detects whether an object on the first slide exists at the third screen coordinates. If the object on the first slide exists, namely the first object, the click test processing state machine converts the third screen coordinate into the first logic coordinate according to the calibration relation between the screen coordinate system of the slave machine and the slide coordinate system. If there is no object on the first slide, i.e., the user clicks at a blank position, the click test processing state machine does not do any processing.

The process of determining the first object by the click test processing state machine may include: the click test processing state machine judges whether the third screen coordinates are in the area where the object is located or not according to each object on the first slide; and when the third screen coordinates are determined to be in the areas where the plurality of objects are located, the click test processing state machine detects whether each object is the last played object according to the hierarchical information of the plurality of objects on the first slide, if so, the last played object is taken as the first object, and the last played object can be understood as the object on the layer closest to the screen. The hierarchy information is playing sequence information of the object.

In step S723, a first object at the first logical coordinates converted on the first slide is determined.

In the embodiment of the application, the slave machine performs multiple coordinate conversions to obtain the first logical coordinate, and then determines the first object at the first logical coordinate obtained by conversion on the first slide.

In the embodiment of the application, the slave adopts multiple coordinate conversions, simulates that a user clicks a slave screen, and realizes that the slave and the host keep the inlet logic unified.

In one embodiment of the application, the designated projection mode may be an enlarged mode. In this case, as shown in fig. 9, in the method, step S73 may be refined as the following step S731.

In step S731, the first object matching the screen size of the slave is redrawn in the zoom-in mode.

After the slave determines the first object, the slave redraws the first object matching the screen size of the slave based on the data of the first object according to the zoom-in mode. It is understood that the size of the first object redrawn by the slave is as close as possible to the screen size of the slave.

In one embodiment of the present application, redrawing the first object that matches the screen size of the slave may be: each vertex of the redrawn first object satisfies the following condition: and the distance value from the vertex coordinates of the first object to the corresponding vertex coordinates of the slave screen is smaller than or equal to a corresponding preset threshold value. For example, when the first redrawn object is a rectangle, the distance value from the coordinates of the left vertex (e.g., point b1 in fig. 3) of the rectangle to the coordinates of the top left corner vertex of the slave screen is equal to or less than the second preset threshold value, and when the distance value is equal to or less than the second preset threshold value, the first redrawn object matches the screen size of the slave screen. The preset thresholds corresponding to the vertexes may be the same or different.

In one embodiment of the present application, the first object matching the screen size of the slave is redrawn, and the first object redrawn may also satisfy the following conditions: when the minimum value of the vertical distance from the outer contour point of the first redrawn object to the outer edge line of the slave computer screen is smaller than or equal to a third preset threshold value, the first redrawn object is matched with the screen size of the slave computer, wherein the size of the first redrawn object is enlarged or reduced in an equal proportion compared with the size of the first object in the host computer.

In one embodiment of the present application, the first object matching the screen size of the slave machine is redrawn, and the following conditions may be satisfied by each point of the outline of the first object that is redrawn: the vertical distance from the outer contour point of the redrawn first object to the corresponding slave screen outer edge line is smaller than or equal to a corresponding preset threshold value; the preset thresholds corresponding to the outer contour points may be the same or different. Wherein the outer contour points of the first object are points constituting the outer contour of the first object; the peripheral line of the slave screen is four sides of a rectangle formed by connecting four vertexes of the slave screen.

In one embodiment, the slave may superimpose a semi-transparent layer on the first slide, and after determining the first object, the slave redraws the first object on the semi-transparent layer that matches the screen size of the slave. The color of the semitransparent layer can be fixed, can be determined according to the host setting, and can be determined for user selection. The color of the semitransparent layer is yellow, red or blue, etc.

Such as a slave screen as shown in fig. 10 a. A slide is shown on the slave screen, the first object on the slide being object s1. When the projection mode is designated as the enlargement mode, the slave redraws the object s1 matching the screen size of the slave according to the enlargement mode, as shown in fig. 10 b.

In the embodiment of the application, the first object is redrawn according to the screen size of the actual slave machine and then displayed, so that the vector display on different screens is ensured to be undistorted.

In one embodiment of the application, the designated projection mode may be a highlighting mode. In this case, as shown in fig. 11, in the method, step S73 may be refined as follows step S732.

In step S732, a semitransparent layer is superimposed at the position of the first object of the first slide and is shown, where the semitransparent layer is equal to the first object in size, or the difference in size between the semitransparent layer and the first object is smaller than the first preset threshold.

The difference between the sizes of the semitransparent layer and the first object may be a difference between the lengths or widths of the semitransparent layer and the first object, or may be an area difference between the semitransparent layer and the first object, or may be a minimum difference or a maximum difference between the horizontal/vertical coordinates of points corresponding to the semitransparent layer and the first object, which is not limited herein. The first preset threshold value can be set according to the display requirement of the object, and can be acquired from the system according to the display inertia of the object in the document.

After the slave determines the first object, determining the area occupied by the first object, where the determining the area occupied by the first object may be obtained by obtaining four vertex coordinates of the first object, which is not specifically limited herein. According to the highlighting mode, the slave machine superimposes the semitransparent layer on the position of the first object of the first slide (namely the area occupied by the first object), and then shows the first slide superimposed with the semitransparent layer, so that the highlighting of the first object is realized. The color of the semitransparent layer can be fixed, can be determined according to the host setting, and can be determined for user selection. The color of the semitransparent layer is yellow, red or blue, etc.

Such as a slave screen as shown in fig. 10 a. The slave screen shows a slide on which the first object is object s2. When the specified projection mode is the highlight mode, the slave superimposes a semitransparent layer on the area occupied by the object s2 in accordance with the highlight mode, as shown in fig. 12.

In one embodiment of the application, the designated projection mode may be a highlighting mode. In this case, as shown in fig. 13, in the method, step S73 may be refined to the following steps S733 to S734.

In step S733, a transparent layer is superimposed on the first slide, where the transparent layer is equal to the first slide in size, or the difference between the transparent layer and the first slide in size is smaller than a second preset threshold.

In step S734, a semitransparent layer is superimposed on the transparent layer at the position of the first object, and the transparent layer is projected, where the sizes of the semitransparent layer and the first object are equal, or the size difference between the semitransparent layer and the first object is smaller than a first preset threshold.

After the slave determines the first object, determining the area occupied by the first object. The determination of the area occupied by the first object may be obtained by obtaining four vertex coordinates of the first object, which is not specifically limited herein. And the slave machine superimposes the semitransparent layer at the position of the first object (namely the area occupied by the first object) on the transparent layer after superimposing the transparent layer on the first slide according to the highlighting mode, so as to further show the first slide superimposed with the transparent layer and the semitransparent layer, and realize the highlighting of the first object. The position of the first object on the transparent layer is determined according to the logical coordinates of the first object.

In one embodiment of the present application, when the designated projection mode is the highlight mode, the slave may highlight the first object in a pattern such as a dotted line frame or a solid line frame. The embodiment of the present application is not limited thereto.

In one embodiment of the present application, the embodiment of the present application further provides a slide show method, as shown in fig. 14, in which the following steps may be further included after step S73.

Step S74, receiving a cancel instruction sent by the host; the cancel instruction is an instruction sent by the host computer under the condition that the host computer obtains the click operation of the user at the second screen coordinate, and the click operation selects the first object on the first slide at the second screen coordinate, or the click operation does not select any object on the first slide at the second screen coordinate.

In the embodiment of the application, the cancel instruction is an instruction sent under the condition that the first object in the first slide is selected again on the first display interface of the host computer or a blank position on the first display interface is selected. The host computer obtains clicking operation of a user at the second screen coordinates; and if the first object on the first slide exists at the second screen coordinates or the object on the first slide does not exist at the second screen coordinates, sending a cancel instruction to the slave machine. And the slave machine receives a cancel instruction sent by the host machine.

Step S75, according to the cancel instruction, cancel to show the first object according to the appointed show mode.

For example, the slave machine shows the first object in a specified showing mode, as shown in fig. 10 b. When the slave receives the cancel instruction, the slave cancels the presentation of the first object in the specified presentation mode, and the slide show presented on the screen of the slave is shown in fig. 10 a.

In the embodiment of the application, the host flexibly controls the slave to show or stop showing the first object through the click operation of the user on the host screen, thereby further improving the flexibility of adjusting the showing sequence or animation effect of the slide.

In one embodiment of the present application, the embodiment of the present application further provides a slide show method, in which the method may further include the following steps after step S73:

Receiving a switching instruction sent by a host, wherein the switching instruction is a sent instruction under the condition that a second object in a first slide is selected on a first display interface; and re-determining target display contents (namely second objects) on the first slide displayed on the second display interface according to the switching instruction, and displaying the second objects according to the designated display mode.

In the embodiment of the present application, the switching instruction may be understood as: the host computer obtains a click operation of the user at the second screen coordinate, and the click operation is an instruction sent when the second object on the first slide is selected at the second screen coordinate. And switching a second object at a second logical coordinate corresponding to the second screen coordinate on the first slide show according to the switching instruction.

Specifically, the host computer obtains a click operation of the user at a second screen coordinate, where the second screen coordinate is a coordinate under the screen coordinate system of the host computer. And under the condition that a second object on the first slide exists at the second screen coordinate, converting the second screen coordinate into a second logic coordinate according to the calibration relation between the screen coordinate system of the host computer and the slide coordinate system. And sending the second logical coordinates and the specified showing mode of the second object to the slave machine, so that the slave machine cancels the playing of the first object on the first slide and shows the second object at the second logical coordinates on the first slide according to the specified showing mode.

In the embodiment of the present application, in the non-slide show mode, the master and the slave may also use the methods shown in fig. 3 to 14, and show the first object according to the specified show mode.

The slide show method provided by the embodiment of the present application will be described in detail by a flow shown in fig. 15.

In step S151, the master initiates a communication mode to establish a connection with the slave.

After the master and the slave establish the connection, the master and the slave synchronously show slides, and then when the master acquires a click operation of the user at the first screen coordinates, step S152 is performed to perform a screen click test. The following description will take the current case where the master and slave synchronously show the first slide.

In step S152, the host computer confirms whether the user clicks on the object that meets the requirements. Here, the satisfactory object will be described by taking the first object as an example. If the first object is a point, step S153 is performed. If the first object is not clicked, ending the processing.

The step S152 may specifically be: the host computer detects whether there is a first object on the first slide at the first screen coordinates.

In step S153, the host computer converts the first screen coordinate into a first logical coordinate of the first object according to the calibration relationship between the screen coordinate system of the host computer and the slide coordinate system, and obtains the designated showing mode of the first object.

In step S154, the master transmits a message body, in which the first logical coordinates and the specified presentation mode of the first object are encapsulated, to the slave.

Step S155, the slave receives the message body sent by the host, analyzes the message body to obtain a first logical coordinate and a specified showing mode of the first object, and converts the first logical coordinate included in the message body into a third screen coordinate according to the calibration relation between the screen coordinate system of the slave and the slide coordinate system.

In step S156, the slave machine performs a simulated screen click test to determine the first object.

In step S157, the slave displays the first object in accordance with the specified display mode.

Wherein specifying the projection mode includes: a zoom-in mode and a highlighting mode. This step S157 may be subdivided into the following steps according to different specified projection modes.

When the projection mode is designated as the enlarged mode, the enlarged first object is redrawn according to the screen size of the slave, and the enlarged first object is displayed. The redrawn first object can be amplified according to fixed proportion for the original object, and can also be amplified according to the amplifying setting according to the user requirement.

When the specified showing mode is the highlighting mode, a highlighting object is set, triggering redrawing. The method specifically comprises the following steps: superimposing a semi-transparent layer over the first object; or, a transparent layer is superimposed on the first slide, and a semitransparent layer is superimposed on the transparent layer at the position of the first object.

The size of the semitransparent layer is equal to that of the first object, or the size difference value of the semitransparent layer and the first object is smaller than a first preset threshold value; the transparent layer is equal to the first slide in size, or the difference in size between the transparent layer and the first slide is smaller than a second preset threshold.

The descriptions of the steps S151-S157 are relatively simple, and reference is specifically made to the descriptions of the steps S3-S14, which are not repeated here.

Corresponding to the slide show method, the embodiment of the application provides a slide show device which is applied to a system comprising a first display interface and a second display interface, wherein the second display interface is connected with the first display interface and synchronously shows a first slide with the first display interface; the slide show device includes:

A determining unit, configured to determine target display content of the second display interface and a projection message of the target display content; wherein the screening message includes a specified screening mode; the target display content is determined according to the selected content in the first display interface;

Optionally, the target display content is a content obtained by redrawing the selected content in the first display interface; the target display content is displayed superimposed on the first slide.

Optionally, the determining unit is specifically configured to:

Acquiring a first clicking operation in a first display interface;

acquiring information of a first object in a first slide displayed on a first display interface under the condition that the first object is selected by a first clicking operation;

Optionally, the determining unit is further configured to: after the first clicking operation is acquired, judging whether the first clicking operation selects a first object in a first slide displayed on a first display interface or not, wherein the method specifically comprises the following steps:

Converting the first screen coordinates into first logic coordinates, wherein the first logic coordinates are coordinates corresponding to the first screen coordinates under a slide coordinate system of the first slide;

Optionally, the determining unit is specifically configured to:

According to the calibration relation between the screen coordinate system of the first display interface and the slide coordinate system, converting the first screen coordinate into a first logic coordinate, wherein the first logic coordinate is a coordinate corresponding to the first screen coordinate under the slide coordinate system;

The first object is redrawn according to the first logical coordinates and the specified projection mode.

Optionally, the determining unit is specifically configured to:

In the case where there are a plurality of objects on the first slide at the first screen coordinates, selecting one object from the plurality of objects as a first object;

Optionally, the determining unit is specifically configured to:

From the plurality of objects, an object on a layer closest to a screen of the first display interface is selected as the first object.

Optionally, the slide show device may further include:

The generating unit is used for generating a cancel instruction aiming at the first object under the condition that the second clicking operation selects the first object in the first slide displayed on the first display interface or under the condition that the second clicking operation selects a blank position on the first display interface;

And the cancellation unit is used for canceling the target display content projected on the second display interface according to the cancellation instruction.

Optionally, the generating unit is specifically configured to:

In the case where there is a first object on the first slide at the second screen coordinates, or in the case where there is no object on the first slide at the second screen coordinates, a cancel instruction for the first object is generated.

Optionally, the slide show device may further include:

the second acquisition unit is used for acquiring information of a second object under the condition that the second object in the first slide displayed on the first display interface is selected by the second click operation after the second click operation is acquired, and the second object is determined according to the selected content in the first display interface;

Optionally, the drawing unit is specifically configured to:

In the case where the projection mode is designated as the enlargement mode, the first object matching the screen size of the slave at the first logical coordinates is redrawn in accordance with the enlargement mode.

Optionally, the drawing unit is specifically configured to:

When the designated showing mode is a highlighting mode, a semitransparent layer is overlapped on a first object at a first logical coordinate on a first slide, wherein the semitransparent layer is equal to the first object in size, or the difference value of the semitransparent layer and the first object is smaller than a first preset threshold value; or (b)

When the designated showing mode is a highlighting mode, a transparent layer is overlapped on the first slide, wherein the transparent layer is equal to the first slide in size, or the difference value between the transparent layer and the first slide in size is smaller than a second preset threshold value; and superposing a semitransparent layer at the position of the first object at the first logical coordinate on the transparent layer, wherein the semitransparent layer is equal to the first object in size, or the size difference between the semitransparent layer and the first object is smaller than a first preset threshold.

Optionally, the first display interface corresponds to a screen of the host computer, and the second display interface corresponds to a screen of the host computer.

According to the slide show method described above, the embodiment of the present application also provides a slide show apparatus, as shown in fig. 16. The device is applied to a host, and a slave connected with the host synchronously shows a first slide with the host. The device comprises:

an obtaining unit 161, configured to obtain a click operation of a user at a first screen coordinate, where the first screen coordinate is a coordinate under a screen coordinate system of the host;

A conversion unit 162, configured to convert, if there is a first object on the first slide at the first screen coordinate, the first screen coordinate into a first logical coordinate according to a calibration relationship between the screen coordinate system of the host computer and the slide coordinate system;

and a transmitting unit 163 for transmitting the first logical coordinates and the specified presentation mode of the first object to the slave so that the slave presents the first object at the first logical coordinates on the first slide in accordance with the specified presentation mode.

In an alternative embodiment, the conversion unit 162 may specifically be configured to:

If a plurality of objects exist on the first slide at the first screen coordinates, selecting one object from the plurality of objects as a first object; and converting the first screen coordinate into a first logic coordinate of the first object according to the calibration relation between the screen coordinate system of the host computer and the slide coordinate system.

From the plurality of objects, an object on a layer closest to a screen of the host is selected as a first object.

In an optional embodiment, the obtaining unit 161 is further configured to obtain, after sending the first logical coordinates and the specified projection mode of the first object to the slave, a click operation of the user at second screen coordinates, where the second screen coordinates are coordinates under the screen coordinate system of the master;

The transmitting unit 163 may be further configured to transmit a cancel instruction to the slave to cancel the first object being shown in the specified showing mode according to the cancel instruction if the first object on the first slide exists at the second screen coordinates or the first object on the first slide does not exist at the second screen coordinates.

In an alternative embodiment, the sending unit 163 may be further configured to send a switching instruction to the slave computer if there is a second object on the first slide at the second screen coordinates, so that the slave computer cancels the presentation of the second object in the specified presentation mode according to the switching instruction.

In an alternative embodiment, the screening mode may include a zoom-in mode and a highlighting mode.

According to the slide show method, the embodiment of the application also provides a slide show device, as shown in fig. 17, which is applied to the slave, and the master connected with the slave synchronously shows the first slide with the slave. The device comprises:

The receiving unit 171 is configured to receive a first logical coordinate and a specified showing mode of a first object, where the first logical coordinate is a coordinate of the first object under the obtained slide coordinate system, the first screen coordinate is a coordinate under the screen coordinate system indicated by the user performing the clicking operation, and the first object is an object on the first slide at the first screen coordinate according to a calibration relationship between the screen coordinate system of the host and the slide coordinate system;

a determining unit 172 for determining a first object at a first logical coordinate on the first slide;

the projection unit 173 is configured to project the first object according to a specified projection mode.

In an alternative embodiment, the determining unit 172 may be specifically configured to:

according to the calibration relation between the screen coordinate system of the slave machine and the slide coordinate system, converting the first logic coordinate into a third screen coordinate;

According to the calibration relation between the screen coordinate system of the slave machine and the slide coordinate system, converting the third screen coordinate into a first logic coordinate;

a first object at the converted first logical coordinates on the first slide is determined.

In an alternative embodiment, the designated projection mode may be an enlarged mode;

The projection unit 173 may be specifically configured to redraw the first object matching the screen size of the slave according to the zoom-in mode.

In an alternative embodiment, the designated projection mode may be a highlighting mode;

The showing unit 173 may be specifically configured to superimpose a semitransparent layer at a position of the first object of the first slide, where the semitransparent layer is equal to the first object in size, or where a difference in size between the semitransparent layer and the first object is smaller than a first preset threshold; or (b)

The showing unit 173 may be specifically configured to superimpose a transparent layer on the first slide, where the transparent layer is equal to the first slide in size; and superposing a semitransparent layer at the position of the first object on the transparent layer, wherein the semitransparent layer is equal to the first object in size, or the difference value between the transparent layer and the first slide is smaller than a second preset threshold value.

In an alternative embodiment, the receiving unit 171 may be further configured to receive a cancel instruction sent by the host, where the cancel instruction is an instruction sent by the host when the host acquires a click operation of the user at the second screen coordinate, and the click operation selects the first object on the first slide at the second screen coordinate, or does not select the first object on the first slide at the second screen coordinate.

The projection unit 173 may be further configured to cancel projection of the first object in the specified projection mode according to the cancel instruction.

In an alternative embodiment, the receiving unit 171 may be further configured to receive a switch instruction sent by the host, where the switch instruction is an instruction sent by the host when the host obtains a click operation of the user at the second screen coordinate, and the click operation selects the second object on the first slide at the second screen coordinate;

The projection unit 173 may be further configured to project the second object in the specified projection mode according to the switching instruction.

According to the slide show method described above, the embodiment of the present application further provides an electronic device, as shown in fig. 18, including a processor 181, a communication interface 182, a memory 183, and a communication bus 184, where the processor 181, the communication interface 182, and the memory 183 complete communication with each other through the communication bus 184.

A memory 183 for storing a computer program;

the processor 181 is configured to implement any of the slide show methods described above with respect to fig. 2-15 when executing the program stored on the memory 183.

The communication bus mentioned above for the electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

The communication interface is used for communication between the electronic device and other devices.

The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal Processor (DIGITAL SIGNAL Processor, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.

In yet another embodiment of the present application, a computer readable storage medium having a computer program stored therein, which when executed by a processor, implements the slide show method described in any of the above fig. 2-15.

In yet another embodiment of the present application, a computer program is provided which, when run on a computer, causes the computer to perform the slide show method described in any of the above figures 2-15.

The slide show method and the slide show device provided by the embodiment of the application are not only suitable for a slide show mode, but also suitable for a slide editing mode.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk Solid STATE DISK (SSD)), etc.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the system, apparatus, electronic device, computer readable storage medium and computer program embodiments, the description is relatively simple as it is substantially similar to the method embodiments, and reference is made to the section of the description of the method embodiments where relevant.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A slide show method is applied to a system comprising a first display interface and a second display interface, wherein the second display interface is connected with the first display interface and is used for synchronously showing a first slide with the first display interface; characterized in that the method comprises:

according to the appointed showing mode, showing the target display content on the second display interface;

the target display content is obtained by redrawing the selected content in the first display interface; and the target display content is overlapped on the first slide to be displayed.

2. The method of claim 1, wherein determining the target display content of the second display interface comprises:

acquiring a first clicking operation in the first display interface;

3. The method of claim 2, wherein after the first clicking operation is obtained, the method further comprises:

4. The method of claim 2, wherein the redrawing the object based on the information of the first object comprises:

5. The method of claim 4, wherein converting the first screen coordinates to first logical coordinates according to a calibration relationship between a screen coordinate system of the first display interface and a slide coordinate system, comprises:

6. The method of claim 5, wherein selecting one object from the plurality of objects as a first object comprises:

7. The method according to claim 2, wherein the method further comprises:

acquiring a second click operation in the first display interface;

8. The method of claim 7, wherein the generating a cancel instruction for a first object in the first slide displayed by the first display interface if the second click operation selects the first object or if the second click operation selects a blank position on the first display interface comprises:

9. The method of claim 7, wherein after the second click operation is obtained, the method further comprises:

10. The method of claim 4, wherein, in the case where the specified projection mode is an enlarged mode, the redrawing the first object according to the first logical coordinates and the specified projection mode comprises:

And redrawing the first object matched with the size of the second display interface at the first logic coordinate according to the enlargement mode.

11. The method of claim 4, wherein, in the case where the specified projection mode is a highlight mode, the redrawing the first object according to the first logical coordinates and the specified projection mode comprises:

12. The method of any of claims 1-11, wherein the first display interface corresponds to a screen of a host computer and the second display interface corresponds to a screen of a host computer.

13. A slide show method applied to a host, the host being connected to a slave, a first display interface of the host and a second display interface of the slave synchronously displaying a first slide, the method comprising:

transmitting the showing message of the first object to the slave so that the slave determines target display content according to the showing message of the first object and shows the target display content on the second display interface according to the appointed showing mode; the target display content is obtained by redrawing the selected content in the first display interface; and the target display content is overlapped on the first slide to be displayed.

14. The method of claim 13, wherein the selecting the first object in the first slide on the first display interface comprises:

15. The method of claim 14, wherein the determining to select the first object in the first slide if the first screen coordinates are within a coordinate range of the first object in the first slide comprises:

16. The method of claim 13, wherein said transmitting the screening message of the first object to the slave comprises:

According to the calibration relation between the screen coordinate system of the first display interface and the slide coordinate system, converting a first screen coordinate on the first display interface into a first logic coordinate, wherein the first screen coordinate is a coordinate under the screen coordinate system of the first display interface, and the first logic coordinate is a coordinate under the slide coordinate system;

17. The method according to any one of claims 13-16, further comprising:

acquiring a second click operation in the first display interface;

18. The method of claim 17, wherein after the second click operation is obtained, the method further comprises:

And under the condition that a second object in the first slide is selected by the second clicking operation, sending a switching instruction of the second object to the slave machine, so that the slave machine redetermines target display contents according to the switching instruction, and displaying the redetermined target display contents on the second display interface according to a designated showing mode.

19. A method as claimed in any one of claims 13 to 16, wherein the first slide is in a show mode or an edit mode.

20. A slide show method, applied to a slave, the slave being connected to a master, a second display interface of the slave and a first display interface of the master synchronously displaying a first slide, the method comprising:

21. The method of claim 20, wherein the screening message further comprises first logical coordinates of the first object, the first logical coordinates being coordinates in a slide coordinate system;

22. The method of claim 21, wherein the determining to select the first object in the first slide if the third screen coordinates are within a coordinate range of the first object in the first slide comprises:

23. The method of claim 20, wherein, in the case where the specified presentation mode is a zoom-in mode, the determining, from a presentation message of the first object, target display content on the first slide displayed by the second display interface includes:

24. The method of claim 20, wherein the step of determining target display content on the first slide displayed on the second display interface from the first object's presentation message in the case where the specified presentation mode is a highlight mode comprises:

25. The method according to any one of claims 20-24, further comprising:

26. The method according to any one of claims 20-24, further comprising:

27. A method as claimed in any one of claims 20 to 24, wherein the first slide is in a show mode or an edit mode.

28. A slide show device is applied to a system comprising a first display interface and a second display interface, wherein the second display interface is connected with the first display interface and is used for synchronously showing a first slide with the first display interface; characterized in that the device comprises:

a projection unit configured to project the target display content on the second display interface according to the specified projection mode; the target display content is obtained by redrawing the selected content in the first display interface; and the target display content is overlapped on the first slide to be displayed.

29. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

the memory is used for storing a computer program;

The processor is configured to implement the method steps of any one of claims 1 to 12, or implement the method steps of any one of claims 13 to 19, or implement the method steps of any one of claims 20 to 27 when executing the program stored on the memory.

30. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a processor, implements the method steps of any of claims 1-12, or implements the method steps of any of claims 13-19, or implements the method steps of any of claims 20-27.