CN113468447A - Document display processing method and device and electronic equipment - Google Patents
Document display processing method and device and electronic equipment Download PDFInfo
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Abstract
The embodiment of the invention provides a document display processing method, a document display processing device and electronic equipment, wherein the method comprises the following steps: responding to a document page opening request, and acquiring first page data of one or more display pages in a document; generating a first page picture adapted to the display equipment according to the first page data, and displaying the first page picture on the display equipment; and acquiring second page data of the preloaded pages of the first designated number adjacent to the display page, generating a second page picture adapting to the display equipment, and caching the second page picture. According to the document display processing method provided by the embodiment of the invention, in the process of carrying out document display processing through the display equipment, only the data of part of pages in the document is read to carry out image conversion and display, so that the display equipment can rapidly carry out display. Besides, the page is cached near the displayed page, so that preparation is made for the page turning operation of a subsequent user, and the whole document display process is smooth.
Description
Technical Field
The application relates to a document display processing method and device and electronic equipment, and belongs to the technical field of computers.
Background
With the development of the intelligent conference system, great convenience is brought to daily office and conference discussion of enterprises. The participants can display their own documents on the TV (television) device of the conference room through the intelligent conference system, thereby facilitating discussion by everyone. Currently, intelligent conference systems generally employ a web-based operating system that can support an H5(HTML5) application to expose various documents. The processing procedure is to read the data of the whole document and convert the data into HTML data to render the webpage and display the webpage on the TV device. However, because the data volume of the existing document is larger and larger, if the whole document is read in and data conversion is performed, larger network resources and computing resources are inevitably consumed, and longer loading and processing time is required, which causes a large display delay, thereby affecting the efficiency of conference discussion.
Disclosure of Invention
The embodiment of the invention provides a document display processing method and device and electronic equipment, and aims to improve the fluency of document display processing.
In order to achieve the above object, an embodiment of the present invention provides a document display processing method, including:
responding to a document page opening request, and acquiring first page data of one or more display pages in a document;
generating a first page picture adapted to the display equipment according to the first page data, and displaying the first page picture on the display equipment;
and acquiring second page data of a first specified number of pre-loaded pages adjacent to the display page, generating a second page picture adapted to the display equipment according to the second page data, and caching in the display equipment.
The embodiment of the invention also provides a document display processing method, which comprises the following steps:
acquiring third page data of one or more thumbnail display pages in response to a request for displaying a thumbnail;
generating a first thumbnail picture according to the third page data, and displaying the first thumbnail picture on display equipment;
and acquiring fourth page data of a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display pages, generating second thumbnail pictures adapted to the display equipment according to the fourth page data, and caching the second thumbnail pictures in the display equipment.
An embodiment of the present invention further provides a document display processing apparatus, including:
the first page data acquisition module is used for responding to a document page opening request and acquiring first page data of one or more display pages in a document;
the page picture display processing module is used for generating a first page picture adapted to the display equipment according to the first page data and displaying the first page picture on the display equipment;
and the page picture cache processing module is used for acquiring second page data of a first specified number of preloaded pages adjacent to the display page, generating a second page picture adaptive to the display equipment according to the second page data, and caching in the display equipment.
An embodiment of the present invention further provides a document display processing apparatus, including:
the second page data acquisition module is used for responding to the request for displaying the thumbnail and acquiring third page data of one or more thumbnail display pages;
the thumbnail picture display processing module is used for generating a first thumbnail picture according to the third page data and displaying the first thumbnail picture on display equipment;
and the thumbnail picture cache processing module is used for acquiring fourth page data of a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display pages, generating second thumbnail pictures adapted to the display equipment according to the fourth page data, and caching the second thumbnail pictures in the display equipment.
An embodiment of the present invention further provides an electronic device, including:
a memory for storing a program;
and the processor is used for operating the program stored in the memory so as to execute the document display processing method.
According to the document display processing method provided by the embodiment of the invention, in the process of carrying out document display processing through the display equipment, only the data of part of pages in the document is read to carry out image conversion and display, so that the display equipment can rapidly carry out display. In the document display processing process, besides the display page, the page near the display page is cached, namely, a near preloaded page picture is generated in advance, so that preparation is made for the page turning operation of a subsequent user, and the whole document display process is smooth.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a software structure of a television apparatus according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a document display processing method according to an embodiment of the present invention;
FIG. 4 is a second flowchart illustrating a document display processing method according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a document display processing apparatus according to an embodiment of the present invention;
FIG. 6 is a second schematic structural diagram of a document display processing apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The technical solution of the present invention is further illustrated by some specific examples.
With the development of intelligent conference systems, in more and more scenes, documents need to be displayed on television equipment so as to be watched by participants. When the document is displayed through the intelligent conference system, the whole document is loaded according to the traditional mode and then the display format is converted, which inevitably brings great delay. In the technical scheme provided by the embodiment of the invention, the whole document does not need to be loaded and converted at one time, but only page data of a part of document pages are loaded, and then the page data are converted into a picture format adaptive to television equipment to generate page pictures for displaying on the television equipment. The loaded part of document pages comprise display pages needing to be directly displayed and preloaded pages which are cached but not displayed temporarily, and the display pages and the preloaded pages can be read and converted sequentially without being carried out simultaneously, so that the processing of the display pages is preferentially ensured. The directly displayed display page may depend on the screen size of the television device and parameter settings such as a display mode (e.g., resolution setting, page arrangement mode, etc.), and a common mode is to display one page within a screen range, and in addition, a plurality of pages may also be displayed side by side along a horizontal direction and/or a vertical direction. After the page data of the display page is read, the image conversion processing can be directly carried out and the display is carried out on the television equipment, and the pre-loaded page can be synchronously read and the image conversion processing can be carried out so as to be used when a user turns pages. The page turning operation may be a switching operation of the whole page, for example, "page up" or "page down" on the keyboard, or may be a moving operation of moving a part of the page up or down, for example, moving the page by a mouse or a scroll wheel or an up direction key.
The position of the preloaded page can be a specified number of pages behind the position of the displayed page, or can also be a specified number of pages in the front-back direction of the position of the displayed page, so that the page turning habit of a user is relatively met, namely the page is turned to the back of the document generally, or the page can be translated to the front-back direction. The front and rear directions are based on the direction of page number increase, the rear direction corresponds to the page number increase direction, and the front direction corresponds to the page number decrease direction.
The number of preloaded pages can be flexibly set according to the requirements of the user or the processing capacity of the television apparatus. In addition, with the page turning operation of the user, the page picture corresponding to the cached preloaded page is displayed, and meanwhile, the preloaded page is continuously updated, namely, the page data of the adjacent page is read by taking the position of the current displayed page as a reference, the page picture adaptive to the television equipment is generated, and then the cached content is updated to prepare for the subsequent page turning operation. The updating can be performed according to a preset rule, and data corresponding to the preloaded page which does not conform to the caching rule is removed. For example, the currently set rule is to cache two document pages in the front-back direction, and after the user turns back one page, the position of the currently displayed page changes, so as to trigger a cache process of adding one preloaded page in the back direction, and accordingly, one page cached in the front position of the displayed page before can be deleted, so as to always keep caching two preloaded pages in the front and back of the currently displayed page. Meanwhile, the page picture corresponding to the displayed page can be directly stored as cache data.
In addition, in the process of converting the page data into the page picture, the page data can be differentially converted according to different document types. Different document types may adopt different picture formats to be adapted to the television equipment, so that a better display effect is generated. The document types referred to herein are divided according to factors such as document format and display scale. For example, some document formats supported by television devices include Word documents, PDF documents, and PPT-like documents, wherein standard Word documents are documents with a width smaller than a height, and similarly PDF documents with a width smaller than a height, such documents may be classified into one type, and PPT-like documents mainly refer to PPT and PPTX documents with widths and heights of 4:3 and 16:9, and may also include PDF documents with widths and heights of 4:3 and 16:9, and the like, which are collectively classified into one type, and based on the determination of the document type, a display picture suitable for the television device may be generated for display.
The above describes a scenario in which a document page is directly opened, and in some cases, a case may arise in which thumbnail display of pages is required, that is, thumbnails of a plurality of pages are displayed on a television apparatus, thereby facilitating a user to select a page to be opened. For a scene displaying the thumbnail, the user may select the thumbnail to preview the thumbnail through a right-click menu, may call the menu to switch to a preview mode of the thumbnail when viewing a certain page, and may set an initial open mode of the document to a thumbnail display mode. To distinguish from the foregoing, a page that needs to be thumbnail-displayed is referred to as a thumbnail-displayed page. Similar to the aforementioned manner of displaying a document page, after receiving a request for displaying a thumbnail, the entire document is not loaded at a time and thumbnail conversion is performed, but only page data of a part of the document page is loaded and then converted into thumbnail pictures to be displayed on the television device. And a part of the document pages loaded in the method comprises thumbnail display pages needing to be directly subjected to thumbnail display and preloaded thumbnail display pages which are cached but not displayed for the moment. Similarly, after page data of the thumbnail display page is read, thumbnail picture conversion processing can be directly carried out and the page data is displayed on the television equipment, and the pre-loaded thumbnail page can be synchronously read and subjected to picture conversion processing to generate a pre-loaded thumbnail picture for use when a user turns pages.
The number of thumbnail pictures displayed on the screen of the television apparatus at a time may be determined according to parameter settings such as a screen size and a display mode (e.g., a resolution setting, a thumbnail picture display size, etc.) of the television apparatus, for example, the thumbnail pictures may be displayed in 3 lines and 3 rows on one screen, or may be displayed in 7 lines and 7 rows on two screens, and the like.
In the preview mode, that is, in the thumbnail display state, a page turning operation of a user may switch and display a plurality of thumbnail display pages in the up-down direction, thereby triggering reading and displaying the cached pre-loaded thumbnail images, and in the process, according to the position in the document where the current thumbnail display page is located, updating the cached data, that is, updating and reading the page data corresponding to the pre-loaded thumbnail display pages in a specified number, and executing the operation of generating the pre-loaded thumbnail images, and updating the cached data, where the updating may include adding new pre-loaded thumbnail images, and may also include deleting pre-loaded thumbnail images that are not in the vicinity of the current thumbnail display page, for example, after the specified number of pages before and after the current thumbnail display page is switched backwards by 7 thumbnail display pages, the previously cached pre-loaded thumbnail pictures corresponding to the previous 7 pages may be purged, thereby releasing the cache. Meanwhile, the thumbnail pictures corresponding to the thumbnail display pages which are displayed before can be directly saved as cache data.
Further, in addition to the page turning operation, the user may change the number of thumbnail pictures (i.e., the number of thumbnail display pages) displayed in the screen through the zoom operation, and therefore, the user's zoom operation changes the size of the thumbnail pictures, thereby changing the total number of thumbnail pictures displayed on one screen, and in such an operation, the display change of the thumbnail pictures corresponding to the same thumbnail display page as the page turning operation and the update of the cache data may be also triggered.
In addition, since the number of thumbnail pictures is generally multiple and the process of generating thumbnail pictures may take a certain time, in the process, some thumbnail icons corresponding to the document types may be displayed at the position where the thumbnail pictures are displayed on the screen, for example, thumbnails of word documents may display thumbnail icons with a uniform word representation. Based on the requirement, in the process of loading the page data, the document type information is also acquired and judged, so that the corresponding thumbnail icon is displayed in advance according to different document types, and after the thumbnail picture is generated, the thumbnail icon is replaced by the thumbnail picture corresponding to the thumbnail display page.
As shown in fig. 1, which is a schematic diagram of an application scenario according to an embodiment of the present invention, a user client communicates with a television device, and controls the television device to display a document page. The client can be arranged on a desktop computer, a notebook computer and other equipment, and can also be arranged on a tablet personal computer, a mobile phone and other mobile terminals. The client may be a web application (e.g., an application based on the H5 architecture) or may be an application program on a computer or mobile terminal. The client communicates with the television equipment through the internet, and can also communicate through Bluetooth, WLAN or other near field communication technologies. As shown in the scenario in the figure, a user issues a document open request to a television apparatus through a client to trigger the television apparatus to execute a document display process. The document to be opened can be uploaded to the television device through the client, or can be a document already stored on the television device, or a document stored in the cloud.
Fig. 2 is a schematic diagram of a software structure of a television device according to an embodiment of the present invention, and with reference to fig. 1 and fig. 2, an application layer, a plug-in layer, and a conversion layer are provided on the television device. The application layer mainly performs user-oriented document interactive processing, and on one hand, can identify and read document data in various document formats, for example, can identify and open office documents, PDF and the like, and part of functions are performed by a document data processing module, and on the other hand, are used for displaying converted page pictures on a television device and displaying the page pictures on the television device, and part of functions are performed by a page display module. The conversion layer is used for carrying out picture conversion processing on various page data, wherein the conversion layer can be configured with a tool library containing a plurality of document-to-picture conversion tools, the conversion tools can be from software of a third party, and different conversion tools can be used for different document types. The plug-in layer is in charge of butt joint between the application layer and the conversion layer, on one hand, the plug-in layer is used for reading page data from a document loaded by the application layer through the document data reading module, then carrying out data format conversion through the data interface module and providing the page data for a picture conversion tool of the conversion layer for processing, on the other hand, the plug-in layer receives the converted page picture through the data interface module, adjusts the converted page picture into a picture format adaptive to the television equipment through the picture format adaptation module and displays the picture in the page display module provided for the application layer. The plug-in layer functions as an intermediate layer in the television apparatus.
Based on the television apparatus with the software structure, after a user sends a document opening request, an application layer first loads and reads document information, and in this process, a page that needs to be displayed currently is determined, for example, a first page of the document may be taken as a page that needs to be displayed currently by default, in addition, page position information when the document is closed last time may also be stored in the document information, when the application layer loads the document, the position information may be read and taken as a page that needs to be opened currently, the number of pages that needs to be displayed currently may be one page or multiple pages, and the like, and a page is displayed as an example for explanation. In addition to the page to be currently displayed, a certain number of pages may be read backward as preloaded pages, for example, two pages may be read backward as preloaded pages. Based on the above example, the plug-in layer needs to read three pages of data from the document, where one page is the display page to be currently displayed, and the other two pages are two pages behind the display page. The plug-in layer provides the page data to the conversion layer for picture conversion processing. The conversion layer may preferentially process a display page to be currently displayed and then process the preloaded page in the process of converting the page data into the picture. Therefore, the conversion layer can return the converted page pictures to the plug-in layer in a grading manner, and the plug-in layer provides the page pictures to the application layer after picture format adaptation. And for the page pictures to be displayed, the application layer can directly display the pages, and for the preloaded page pictures, the application layer can cache the pages.
After a user opens a document, page turning requests are continuously generated along with the watching of the document by the user, after the television equipment receives the page turning requests, due to the fact that the preloaded page pictures are cached in advance, the preloaded page pictures can be directly called from the cache and displayed directly, in addition, due to the fact that the page turning operations of the user are carried out, the plug-in layer can trigger the updating of the preloaded page, if the user turns back one page, the preloaded page also needs to be updated one page in sequence, and namely one page of new data is read. And after reading the newly added preloaded page data, the plug-in layer executes the same flow as before, provides the newly added preloaded page picture for the conversion layer to perform picture conversion processing, returns the newly added preloaded page picture to the plug-in layer, and then provides the newly added preloaded page picture for the application layer to perform cache updating after picture format adaptation. The above process is triggered when the user turns the page each time, so that the user can quickly see the displayed page after turning the page, and meanwhile, the cache is continuously updated to prepare for the next page turning.
The processing shown in fig. 1 and 2 described above may be applied to thumbnail display processing, and the difference is that the tool used in the conversion layer may be a thumbnail conversion tool. In addition, the television device may also be other display devices, such as a smart projector.
It should be noted that the number of the preloaded pages can be flexibly set according to the business requirements, the system processing capacity, and the hardware configuration. For example, the conference system may obtain in advance the hardware configuration (for example, the CPU model, the memory size, and the like) and the system processing capacity (current CPU occupancy, memory occupancy, and the like) of the presentation device, determine the number of pages that need to be cached currently according to the obtained device information, and cache some pages as much as possible within a range allowed by the capability of the presentation device. In addition, in the process of loading the document, the number of the cache pages is determined according to the service requirements, for example, if the conference system judges that the current conference is a discussion conference in which a plurality of people participate, it can be predicted that the page turning range is large in the process of displaying the document, and the number of the pre-cached pre-loaded pages can be set to be larger. For another example, the conference system determines that the current application is an application in the aspect of teaching courseware display, and according to the characteristics of the teaching courseware, when a user explains the current page, the user may often use the page that has been spoken before, so the page may be frequently turned forward.
According to the document display processing method provided by the embodiment of the invention, in the process of carrying out document display processing through the display equipment, only the data of part of pages in the document is read to carry out image conversion and display, so that the display equipment can rapidly carry out display. In the document display processing process, besides the display page, the page near the display page is cached, namely, a near preloaded page picture is generated in advance, so that preparation is made for the page turning operation of a subsequent user, and the whole document display process is smooth.
Example one
As shown in fig. 3, which is one of the flow diagrams of the document display processing method according to the embodiment of the present invention, the method may be applied to a display device for displaying a document, and is used for displaying a page of the document, and the method includes:
s101: first page data of one or more displayed pages in a document is acquired in response to a document page open request. After receiving a document page opening request, the display device loads a document and reads page data in the document. The document page opening request can come from a client end communicated with the display device, and can also be a document page opening request triggered by a user directly operating the display device. The document may come from a client communicating with the presentation device, may be a document already stored locally on the television device, or may be a document stored in the cloud. In the embodiment of the invention, in the processing process of the picture display, all document page data is not required to be read, but the data of partial document pages is processed, the partial document pages comprise display pages which are required to be directly displayed and preloaded pages which are cached but not temporarily displayed, and the display pages and the preloaded pages can be read and converted in sequence without being simultaneously performed, so that the processing and the display of the display pages are preferentially ensured. In this step, the first page data of one or more display pages is the page data corresponding to the page to be processed and displayed preferentially.
S102: and generating a first page picture adapted to the display equipment according to the first page data, and displaying the first page picture on the display equipment. In this step, different formats of picture conversion may be performed according to document types, and specifically, this step further includes: acquiring document type information of a document, determining a picture format of the adaptive display equipment according to the document type information, and generating a first page picture according to the picture format and the first page data. Some common document formats include Word documents, PDF documents, and PPT-like documents, which have different display scales, and based on the determination of the document type, display pictures suitable for television devices can be generated for display.
S103: and acquiring second page data of a first specified number of preloaded pages adjacent to the display page, generating a second page picture adapted to the display equipment according to the second page data, and caching in the display equipment. The pre-loaded pages adjacent to the display page may be a first specified number of pages behind the position of the display page, or a first specified number of pages in the front-back direction of the position of the display page. In the embodiment of the present invention, the front and the back of the position may be defined by page numbers, the direction of increasing the page number is the back, and the direction of decreasing the page number is the front. The number and direction of the preloaded pages can be set according to actual needs.
After the document is opened and displayed, the user may perform a page turning operation subsequently, so as to trigger further document data processing, and therefore, the embodiment may further include:
s104: and responding to the page turning operation of the user, and triggering the display equipment to display the second page picture. In the step, the page turning operation of the user triggers the requirement for displaying the page adjacent to the currently displayed page, and since some pre-loaded pages are cached before, the generated page picture can be immediately called from the cache for displaying after the page turning operation of the user. After the page turning operation of the user, the cache updating process can be further carried out, so that preparation is made for the subsequent page turning operation.
S105: and updating and reading the second page data according to the position of the current display page in the document, generating a new second page picture adapted to the display equipment according to the updated second page data, and updating the data cached in the display equipment. The specific updating mode is to update the cache according to a preset rule, namely, to cache the adjacent pages with the first specified number by taking the display page after page turning as a reference. For example, the set caching rules are that 3 pages are cached in the front and back directions respectively, and when the current display page turns backwards, data of one page needs to be cached backwards, that is, the 3 rd page after the current display page or the 4 th page after the previous display page is cached. When the cache page is added, the page beyond the cache range can be removed, for example, because the page is turned backwards, the page picture corresponding to the 3 rd page before the page is displayed before the page is turned can be removed.
According to the document display processing method provided by the embodiment of the invention, in the process of carrying out document display processing through the display equipment, only the data of part of pages in the document is read to carry out image conversion and display, so that the display equipment can rapidly carry out display. In the document display processing process, besides the display page, the page near the display page is cached, namely, a near preloaded page picture is generated in advance, so that preparation is made for the page turning operation of a subsequent user, and the whole document display process is smooth.
Example two
As shown in fig. 4, which is a second flowchart of the document display processing method according to the embodiment of the present invention, the difference from the first embodiment is that the method according to the present embodiment relates to the presentation of page thumbnails, and the method can also be applied to a presentation device for document presentation, and the method includes:
s201: third page data of one or more thumbnail display pages is acquired in response to a request to display a thumbnail. For the purpose of distinction from the foregoing embodiment, a page that needs to be thumbnail-displayed is referred to as a thumbnail-displayed page. The request for displaying the thumbnail may be when the document is opened, or may be triggered by the user through menu selection or through a zoom operation, for example, during the browsing of the document. If the thumbnail display is performed at the beginning of opening the document, the document is loaded by the presentation apparatus, which is the same as the foregoing embodiment. Since each page is greatly reduced to be smaller than a normal page when displaying the thumbnails, in this case, the number of pages that need to be displayed on one screen of the display device is much larger than that of the normally displayed pages, for example, one screen may display thumbnails of 9 pages or thumbnails of 14 pages. Similar to the embodiment, in the process of the thumbnail display, the data of all the document pages are not required to be read, but the data of partial document pages are processed, the partial document pages comprise thumbnail display pages which are required to be directly subjected to thumbnail display and preloaded thumbnail display pages which are cached but not displayed temporarily, and the thumbnail display pages and the preloaded thumbnail display pages can be read and converted in sequence without being simultaneously carried out, so that the processing and the display of the thumbnail display pages are preferentially ensured. In this step, the third page data of one or more thumbnail display pages is the page data corresponding to the page to be preferentially subjected to the picture processing and the presentation. In this step, the number of the third page data to be acquired may be determined according to the number of thumbnail displays adapted to the current screen of the display device, that is, the third page data corresponding to the thumbnail display pages of the number of thumbnail displays adapted to the current screen of the display device is acquired.
S202: and generating a first thumbnail picture according to the third page data, and displaying the first thumbnail picture on the display equipment. Conversion from document data to thumbnail can also be performed according to different document types. The resolution of the converted thumbnail picture may also be different according to the size of the thumbnail. In addition, the size of the thumbnail picture can also be determined according to the number of pages displayed on the current screen or the scaling ratio, and the size of the thumbnail picture is smaller as the number of pages displayed on one screen is larger. The size of the thumbnail picture can be flexibly adjusted based on picture processing after page data is converted into a page picture. In addition, the size of the thumbnail picture may be set to a fixed value, that is, the page data may be converted into a thumbnail picture of a fixed size.
S203: and acquiring fourth page data of a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display pages, generating second thumbnail pictures adapted to the display equipment according to the fourth page data, and caching the second thumbnail pictures in the display equipment. Similar to the embodiment, the preloaded thumbnail display pages corresponding to the fourth page number may be: a second specified number of pages behind the position where the page is thumbnail displayed, or a second specified number of pages in the front-rear direction of the position where the page is thumbnail displayed.
Through the caching process in step S203, the second thumbnail picture is generated in advance, so as to prepare for subsequent possible page turning operations, and correspondingly, the method may further include a process for the page turning operation:
s204: and triggering the display equipment to display the second thumbnail picture in response to the page turning operation or the zooming operation of the user. In the display state of the current screen, along with the page turning operation of the user, the second thumbnail picture which is cached can be triggered to be called and displayed. The page turning operation may be page turning of the whole screen, for example, the current screen displays thumbnail pictures corresponding to 6 pages, the pages are displayed after page turning, and thumbnail pictures corresponding to 6 pages behind the current screen, and the page turning operation may be performed with operations such as mouse scrolling or touch downslide, to switch several pages backwards, for example, the current screen displays thumbnail pictures corresponding to 18 pages, which are divided into 3 lines, each line displays 6 thumbnail pictures, after page turning, the 6 thumbnail pictures in the first line are replaced by the thumbnail pictures in the second line, the 6 thumbnail pictures in the second line are replaced by the thumbnail pictures in the third line, and the 6 thumbnail pictures in the three lines are replaced by the thumbnail pictures which are called from the buffer. Accordingly, the scaling operation may also change the number of thumbnail pictures displayed in the screen, thereby triggering the process of increasing or decreasing the thumbnail pictures, and further using the cached second thumbnail picture.
After the cached thumbnail picture is used, the cached thumbnail picture may be updated synchronously, and therefore, the method of this embodiment may further include:
s205: and updating and reading fourth page data according to the position of the current thumbnail display page in the document, generating a new second thumbnail picture adapted to the display equipment according to the updated fourth page data, and updating the data cached in the display equipment. The processing of this step is similar to the processing of step S105 in embodiment one, except that the converted picture is a thumbnail picture. The specific updating mode is that the thumbnail display page displayed after page turning is taken as a reference, and the cache is updated according to a set rule, namely, second thumbnail pictures corresponding to a second specified number of adjacent pages are cached.
Further, since the number of thumbnails displayed at once is sometimes large, and thumbnail generation is relatively slow, there may be some delay. In this case, the thumbnail icons corresponding to the documents may be displayed first, so that the user knows the current document type, and then the thumbnail icons are replaced after the thumbnails are generated, where the thumbnail icons may be pre-configured, and one document type may correspond to one thumbnail icon. Specifically, the partial processing may include: acquiring document type information of a document, determining a thumbnail icon corresponding to the document type according to the document type information, and displaying the thumbnail icon before the first thumbnail picture is not generated.
According to the document display processing method provided by the embodiment of the invention, in the process of carrying out the display processing on the thumbnail of the document through the display equipment, only the data of part of pages in the document are read to carry out thumbnail image conversion and display, so that the display equipment can quickly present the thumbnail. In the process of displaying the document, besides displaying the thumbnail display page of the current screen, the cache processing of the thumbnail pictures is also carried out on the page near the current thumbnail display page, namely, the thumbnail pictures corresponding to the nearby page are generated in advance, so that the preparation is made for the page turning operation of the subsequent user, and the whole document display process is smoother.
EXAMPLE III
As shown in fig. 5, which is a schematic structural diagram of a document display processing apparatus according to an embodiment of the present invention, the apparatus may be applied to a display device for displaying a document, and is used for displaying a page of the document, and the apparatus includes:
a first page data obtaining module 11, configured to obtain first page data of one or more displayed pages in the document in response to a document page opening request. After receiving a document page opening request, the display device loads a document and reads page data in the document. The document page opening request can come from a client end communicated with the display device, and can also be a document page opening request triggered by a user directly operating the display device. The document may come from a client communicating with the presentation device, may be a document already stored locally on the television device, or may be a document stored in the cloud. In the embodiment of the invention, the data of part of the document pages are processed without reading all the document page data, the part of the document pages comprise display pages needing to be directly displayed and preloaded pages which are cached but not displayed temporarily, and the display pages and the preloaded pages can be read and converted in sequence without being carried out simultaneously, so that the processing and the display of the display pages are preferentially ensured. The first page data of the one or more display pages is page data corresponding to a page to which picture processing and display are preferentially performed.
And the page picture display processing module 12 is configured to generate a first page picture adapted to the display device according to the first page data, and display the first page picture on the display device. In the process of performing picture conversion, picture conversion in different formats may be performed according to document types, and specifically, the step further includes: acquiring document type information of a document, determining a picture format of the adaptive display equipment according to the document type information, and generating a first page picture according to the picture format and the first page data. In addition, in the process of browsing the page by the subsequent user, the module is further configured to trigger the display device to display the second page picture in response to the page turning operation of the user, that is, to display the page picture cached by the subsequent page picture caching module 13. Therefore, after the page turning operation of the user, the generated page picture can be immediately called out from the cache for displaying.
And the page picture cache processing module 13 is configured to acquire second page data of the preloaded pages in the first designated number adjacent to the display page, generate a second page picture adapted to the display device according to the second page data, and cache the second page picture in the display device. The pre-loaded pages adjacent to the display page may be a first specified number of pages behind the position of the display page, or a first specified number of pages in the front-back direction of the position of the display page. In addition, after the page turning operation of the user, the page picture display processing module 12 uses a part or all of the cached page pictures, and the page picture cache processing module 13 may further perform the processing of updating the cache, so as to prepare for the subsequent page turning operation, that is, the page picture cache processing module 13 may perform the following processing of updating the cache: and updating and reading the second page data according to the position of the current display page in the document, generating a new second page picture adapted to the display equipment according to the updated second page data, and updating the data cached in the display equipment.
The detailed description of the above processing procedure, the detailed description of the technical principle, and the detailed analysis of the technical effect are described in the foregoing embodiments, and are not repeated herein.
According to the document display processing device, in the process of performing document display processing through the display equipment, only data of partial pages in the document are read to perform image conversion and display, and therefore the display equipment can display rapidly. In the document display processing process, besides the display page, the page near the display page is cached, namely, a near preloaded page picture is generated in advance, so that preparation is made for the page turning operation of a subsequent user, and the whole document display process is smooth.
Example four
As shown in fig. 6, which is a second schematic structural diagram of a document display processing apparatus according to a second embodiment of the present invention, the difference from the third embodiment is that the apparatus of the present embodiment relates to the presentation of page thumbnails, and the apparatus can also be applied to a presentation device for document presentation, and the apparatus includes:
and a second page data obtaining module 21, configured to obtain third page data of one or more thumbnail display pages in response to the request for displaying the thumbnail. The request for displaying the thumbnail may be when the document is opened, or may be triggered by the user through menu selection or through a zoom operation, for example, during the browsing of the document. If the thumbnail display is performed at the beginning of opening the document, the document is loaded by the presentation apparatus, which is the same as the foregoing embodiment. Similar to the third embodiment, in the process of the thumbnail display, the data of all the document pages are not required to be read, but the data of part of the document pages are processed, the part of the document pages comprise thumbnail display pages which are required to be directly subjected to thumbnail display and preloaded thumbnail display pages which are cached but not displayed temporarily, and the thumbnail display pages and the preloaded thumbnail display pages can be read and converted in sequence without being simultaneously performed, so that the processing and the display of the thumbnail display pages are preferentially ensured. And the third page data of one or more thumbnail display pages is the page data corresponding to the page to be preferentially subjected to picture processing and display. The number of the third page data acquired may be determined according to the number of thumbnail displays adapted to the current screen of the display device, that is, the third page data corresponding to the thumbnail display pages of the number of thumbnail displays adapted to the current screen of the display device is acquired.
And the thumbnail picture display processing module 22 is configured to generate a first thumbnail picture according to the third page data, and display the first thumbnail picture on the display device. Conversion from document data to thumbnail can also be performed according to different document types. The resolution of the converted thumbnail picture may also be different according to the size of the thumbnail. In addition, the size of the thumbnail picture can also be determined according to the number of pages displayed on the current screen or the scaling ratio, and the size of the thumbnail picture is smaller as the number of pages displayed on one screen is larger. The size of the thumbnail picture can be flexibly adjusted based on picture processing after page data is converted into a page picture. In addition, the size of the thumbnail picture may be set to a fixed value, that is, the page data may be converted into a thumbnail picture of a fixed size.
In addition, the thumbnail picture display processing module 22 is further configured to trigger the display device to display the second thumbnail picture in response to a page turning operation or a zooming operation of the user. In the display state of the current screen, along with the page turning operation of the user, the second thumbnail picture which is cached can be triggered to be called and displayed. The second thumbnail picture here is generated by the subsequent thumbnail picture cache processing module 23.
And the thumbnail picture cache processing module 23 is configured to acquire fourth page data of a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display page, generate a second thumbnail picture adapted to the display device according to the fourth page data, and cache the second thumbnail picture in the display device. Similar to the third embodiment, the preloaded thumbnail display pages corresponding to the fourth page number may be: a second specified number of pages behind the position where the page is thumbnail displayed, or a second specified number of pages in the front-rear direction of the position where the page is thumbnail displayed.
In addition, after the thumbnail picture presentation processing module 22 uses the already cached thumbnail picture, the thumbnail picture caching processing module 23 may further perform an update process of the cached thumbnail picture, which specifically includes: and updating and reading fourth page data according to the position of the current thumbnail display page in the document, generating a new second thumbnail picture adapted to the display equipment according to the updated fourth page data, and updating the data cached in the display equipment. The specific updating mode is that the thumbnail display page displayed after page turning is taken as a reference, and the cache is updated according to a set rule, namely, second thumbnail pictures corresponding to a second specified number of adjacent pages are cached.
Further, since the number of thumbnails displayed at once is sometimes large, and thumbnail generation is relatively slow, there may be some delay. In this case, the thumbnail image display processing module 22 may display the thumbnail icon corresponding to the document first, so that the user knows the current document type, and then replace the thumbnail icon after the thumbnail is generated, where the thumbnail icon may be configured in advance, and one document type may correspond to one thumbnail icon. Specifically, the partial processing may include: acquiring document type information of a document, determining a thumbnail icon corresponding to the document type according to the document type information, and displaying the thumbnail icon before the first thumbnail picture is not generated.
The detailed description of the above processing procedure, the detailed description of the technical principle, and the detailed analysis of the technical effect are described in the foregoing embodiments, and are not repeated herein.
According to the document display processing device, in the process of displaying the thumbnail of the document through the display equipment, only the data of part of pages in the document are read to convert and display the thumbnail images, so that the display equipment can quickly display the thumbnail. In the process of displaying the document, besides displaying the thumbnail display page of the current screen, the cache processing of the thumbnail pictures is also carried out on the page near the current thumbnail display page, namely, the thumbnail pictures corresponding to the nearby page are generated in advance, so that the preparation is made for the page turning operation of the subsequent user, and the whole document display process is smoother.
EXAMPLE five
The foregoing embodiment describes a flow process and a device structure of a document display processing method, and the functions of the method and the device can be implemented by an electronic device, as shown in fig. 7, which is a schematic structural diagram of the electronic device according to an embodiment of the present invention, and specifically includes: a memory 110 and a processor 120.
And a memory 110 for storing a program.
In addition to the programs described above, the memory 110 may also be configured to store other various data to support operations on the electronic device. Examples of such data include instructions for any application or method operating on the electronic device, contact data, phonebook data, messages, pictures, videos, and so forth.
The memory 110 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
A processor 120, coupled to the memory 110, for executing the program in the memory 110 to perform the operation steps of the document display processing method described in the foregoing embodiments.
Further, the processor 120 may also include various modules described in the foregoing embodiments to perform the process of document display, and the memory 110 may be used, for example, to store data required for the modules to perform operations and/or output data.
The detailed description of the above processing procedure, the detailed description of the technical principle, and the detailed analysis of the technical effect are described in the foregoing embodiments, and are not repeated herein.
Further, as shown, the electronic device may further include: communication components 130, power components 140, audio components 150, display 160, and other components. Only some of the components are schematically shown in the figure and it is not meant that the electronic device comprises only the components shown in the figure.
The communication component 130 is configured to facilitate wired or wireless communication between the electronic device and other devices. The electronic device may access a wireless network based on a communication standard, such as WiFi, a mobile communication network, such as 2G, 3G, 4G/LTE, 5G, or a combination thereof. In an exemplary embodiment, the communication component 130 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 130 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
The power supply component 140 provides power to the various components of the electronic device. The power components 140 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for an electronic device.
The audio component 150 is configured to output and/or input audio signals. For example, the audio component 150 includes a Microphone (MIC) configured to receive external audio signals when the electronic device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 110 or transmitted via the communication component 130. In some embodiments, audio assembly 150 also includes a speaker for outputting audio signals.
The display 160 includes a screen, which may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The aforementioned program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (19)
1. A document display processing method, comprising:
responding to a document page opening request, and acquiring first page data of one or more display pages in a document;
generating a first page picture adapted to the display equipment according to the first page data, and displaying the first page picture on the display equipment;
and acquiring second page data of a first specified number of pre-loaded pages adjacent to the display page, generating a second page picture adapted to the display equipment according to the second page data, and caching in the display equipment.
2. The method of claim 1, further comprising:
and responding to the page turning operation of the user, and triggering the display equipment to display the second page picture.
3. The method of claim 2, further comprising:
updating and reading the second page data according to the position of the current display page in the document;
and generating a new second page picture adapted to the display equipment according to the updated second page data, and updating the data cached in the display equipment.
4. The method of claim 1, wherein the first specified number of preloaded pages adjacent to a displayed page is: and displaying the pages of the first specified number behind the position of the page, or displaying the pages of the first specified number in the front-back direction of the position of the page.
5. The method of claim 1, wherein generating a first page picture of a fitted presentation device from the first page data comprises:
obtaining document type information of the document, determining a picture format adapted to the display equipment according to the document type information, and generating the first page picture according to the picture format and the first page data.
6. A document display processing method, comprising:
acquiring third page data of one or more thumbnail display pages in response to a request for displaying a thumbnail;
generating a first thumbnail picture according to the third page data, and displaying the first thumbnail picture on display equipment;
and acquiring fourth page data of a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display pages, generating second thumbnail pictures adapted to the display equipment according to the fourth page data, and caching the second thumbnail pictures in the display equipment.
7. The method of claim 6, wherein obtaining third page data for one or more thumbnail display pages comprises: and acquiring third page data corresponding to the thumbnail display pages with the thumbnail display number matched with the current screen of the display equipment.
8. The method of claim 6, wherein the retrieving second page data for a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display page comprises:
the number of pages behind the position of the thumbnail display page is second designated, or the number of pages in the front-back direction of the position of the thumbnail display page is second designated.
9. The method of claim 6, further comprising:
acquiring document type information of the document, determining a thumbnail icon corresponding to the document type according to the document type information, and displaying the thumbnail icon before the first thumbnail picture is not generated.
10. The method of claim 6, further comprising:
and triggering the display equipment to display the second thumbnail picture in response to page turning operation or zooming operation of a user.
11. The method of claim 10, further comprising:
updating and reading the fourth page data according to the position of the current thumbnail display page in the document;
and generating a new second thumbnail picture adapted to the display equipment according to the updated fourth page data, and updating the data cached in the display equipment.
12. A document display processing apparatus comprising:
the first page data acquisition module is used for responding to a document page opening request and acquiring first page data of one or more display pages in a document;
the page picture display processing module is used for generating a first page picture adapted to the display equipment according to the first page data and displaying the first page picture on the display equipment;
and the page picture cache processing module is used for acquiring second page data of a first specified number of preloaded pages adjacent to the display page, generating a second page picture adaptive to the display equipment according to the second page data, and caching in the display equipment.
13. The apparatus of claim 12, wherein the page picture presentation processing module is further configured to: and responding to the page turning operation of the user, and triggering the display equipment to display the second page picture.
14. The apparatus of claim 13, wherein the page picture cache processing module is further configured to: updating and reading the second page data according to the position of the current display page in the document; and generating a new second page picture adapted to the display equipment according to the updated second page data, and updating the data cached in the display equipment.
15. A document display processing apparatus comprising:
the second page data acquisition module is used for responding to the request for displaying the thumbnail and acquiring third page data of one or more thumbnail display pages;
the thumbnail picture display processing module is used for generating a first thumbnail picture according to the third page data and displaying the first thumbnail picture on display equipment;
and the thumbnail picture cache processing module is used for acquiring fourth page data of a second specified number of preloaded thumbnail display pages adjacent to the thumbnail display pages, generating second thumbnail pictures adapted to the display equipment according to the fourth page data, and caching the second thumbnail pictures in the display equipment.
16. The apparatus of claim 15, wherein the page picture presentation processing module is further configured to: and triggering the display equipment to display the second thumbnail picture in response to page turning operation or zooming operation of a user.
17. The apparatus of claim 16, wherein the thumbnail picture cache processing module is further configured to: updating and reading the fourth page data according to the position of the current thumbnail display page in the document; and generating a new second thumbnail picture adapted to the display equipment according to the updated fourth page data, and updating the data cached in the display equipment.
18. An electronic device, comprising:
a memory for storing a program;
a processor for executing the program stored in the memory to execute the document display processing method according to any one of claims 1 to 5.
19. An electronic device, comprising:
a memory for storing a program;
a processor for executing the program stored in the memory to execute the document display processing method according to any one of claims 6 to 11.
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