CN115934653A - Method and device for adding external OFD page content in OFD file - Google Patents
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Abstract
The application discloses a method and a device for adding external OFD page content in an OFD file, wherein the method comprises the following steps: according to the page content of the appointed page of the external OFD file, creating OFD page content corresponding to the page content in the current OFD file; creating corresponding OFD resource data in the current OFD file according to the resource data used by the page content of the specified page of the external OFD file; and establishing mapping between the OFD resource data and the OFD page content. According to the page content of the designated page of the external OFD file and the resource data used by the designated page, the corresponding OFD page content and OFD resource data are created in the current OFD file, and the semantic attribute of the page content of the designated page of the external OFD file can be completely reserved in the current OFD file, so that the page content can be searched and selected.
Description
Technical Field
The application belongs to the technical field of computers, and particularly relates to a method and a device for adding external OFD page content in an OFD file.
Background
The OFD (Open Fixed-layout Documents) is an electronic file format which is independently developed according to national standards in China, can meet the requirements of manageability, controllability, long-term storage and the like of layout files, and supports security mechanisms such as electronic signatures, digital signatures and the like.
In the application process of the OFD document, when the OFD document is read, there is often a need to add page contents of an external OFD document, for example, a user needs to refer to a certain page content of an external OFD document at a certain position of the OFD document for remarks or explanations. The prior art usually clicks and drags a target area of content to be added on an OFD page through a mouse; secondly, selecting an external OFD document, formulating the page number of the page content to be added, and then performing integral rendering on the page content to obtain an integral rendering picture of the page content; finally, the rendered picture is inserted into the target area on the OFD page.
However, the page contents of the external OFD document added in the above process are picturized, lose semantic attributes of original contents, and cannot be retrieved and selected.
Content of application
An object of the embodiments of the present application is to provide a method and an apparatus for adding external OFD page contents in an OFD file, so as to solve the defect that the external OFD page contents added in the prior art cannot be retrieved and selected.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, there is provided a method for adding external OFD page contents in an OFD file, comprising the steps of:
according to the page content of the designated page of the external OFD file, creating OFD page content corresponding to the page content in the current OFD file;
creating corresponding OFD resource data in the current OFD file according to the resource data used by the page content of the specified page of the external OFD file;
and establishing mapping between the OFD resource data and the OFD page content.
In a second aspect, there is provided an apparatus for adding external OFD page contents in an OFD file, comprising:
a first creating module, configured to create, in a current OFD file, an OFD page content corresponding to a page content of an assigned page of an external OFD file, according to the page content;
a second creating module, configured to create, according to resource data used by page content of an assigned page of an external OFD file, corresponding OFD resource data in the current OFD file;
and the establishing module is used for establishing mapping between the OFD resource data and the OFD page content.
According to the page content of the designated page of the external OFD file and the resource data used by the designated page, the corresponding OFD page content and OFD resource data are created in the current OFD file, and the semantic attribute of the page content of the designated page of the external OFD file can be completely reserved in the current OFD file, so that the page content can be searched and selected.
Drawings
Fig. 1 is a flowchart of a method for adding external OFD page contents to an OFD file according to an embodiment of the present application;
fig. 2 is a specific implementation diagram of a method for adding external OFD page contents in an OFD file according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an apparatus for adding external OFD page content to an OFD file according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
When a user drags a target area on an OFD document through a mouse and adds external OFD document contents in the target area, the semantic attribute and vectorization characteristic of original document data are lost in the picture transformation of the page contents, the page is distorted when being displayed in a scaling mode, the overall effect is poor, and the user experience is poor.
In view of the above disadvantages, the embodiments of the present application provide a method and system for adding external OFD document page content to an OFD document page, which realizes that the external OFD document page content data is perfectly added to a content area to be added in the present document by a built-in integrated intelligent data migration engine and an intelligent area correction engine. The intelligent data migration engine is responsible for establishing a migration data model of external OFD document page content basic data to be added and used resource data, and creating new page content and resources in the document; the intelligent area correction engine is responsible for scaling and position correction of the newly created page content.
By using the integrated intelligent data migration engine and the intelligent area correction engine, when the external OFD document page content is added to the OFD document page, all attributes of the quoted original content, including semantic attributes and vector characteristics of the external OFD document page content, correction parameters such as scaling of the added content can be dynamically calculated according to the size of the page to be added and the size of the target area of the content to be added, the processed quoted data can keep the display characteristics of the quoted data in the original document, and meanwhile, the aspect ratio is kept to be adaptively and centrally displayed in the target area of the content to be added, so that the user experience is better.
The method for adding external OFD page content in an OFD file according to the embodiments of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1, a flowchart of a method for adding external OFD page contents in an OFD file according to an embodiment of the present application is provided, where the method includes the following steps:
Specifically, all page contents of a specified page of the external OFD file may be traversed, and the page contents are classified; and establishing a data model of the page content according to the attribute of each type of page content, and creating OFD page content corresponding to the page content in the current OFD file according to the data model.
Specifically, the original resource IDs used by all the page contents of the designated page of the external OFD file may be traversed, and the resource data of the external OFD file may be analyzed according to the original resource IDs; and establishing a data model of the resource data, establishing corresponding resource data in the current document according to the data model to obtain the ID of each newly-established resource data, and establishing a mapping relation between the original resource ID and the ID of the newly-established resource data.
Specifically, the OFD page content created in the current document may be traversed, and the ID of the resource data used by the OFD page content may be replaced with the ID of the new resource data corresponding to the original resource ID.
In this embodiment, after creating, according to the page content of the designated page of the external OFD file, the OFD page content corresponding to the page content in the current OFD file, coordinate conversion may be performed on a target area selected by the user on the page of the current document to obtain a corresponding document coordinate; calculating a scaling parameter according to the size of the target area and the size of the page content of the designated page, and calculating an application matrix of the page content according to the scaling parameter; and applying the application matrix to the OFD page content, calculating new coordinates of the OFD page content under the condition that the page content of the specified page is kept to be displayed in the target area in a centered manner, and correcting the OFD page content based on the new coordinates.
According to the page content of the designated page of the external OFD file and the resource data used by the designated page, the corresponding OFD page content and OFD resource data are created in the current OFD file, and the semantic attribute of the page content of the designated page of the external OFD file can be completely reserved in the current OFD file, so that the page content can be searched and selected.
In the embodiment of the application, when the page content of the external OFD document is added to the OFD page, the device with the intelligent data migration engine and the intelligent area correction engine realizes that the page content data of the external OFD document is perfectly migrated to the document and is displayed in the area in a self-adaptive centered manner according to the size of the target area of the content to be added.
Specifically, the intelligent data migration engine is responsible for analyzing the original added content and creating the same page content in the document, and each attribute of the newly created page content is consistent with the attribute of the original page content. The intelligent area correction engine is responsible for dynamically calculating scaling parameters and position parameters of the added content according to the page size of the added external OFD document and the target area size of the content to be added, and then applying the scaling and position parameters to the page content created by the intelligent data migration engine to ensure that the newly created page content is correctly and centrally displayed in the target area of the content to be added.
The intelligent data migration engine comprises two parts: a page content data migration engine and a document resource migration engine. The page content data migration engine firstly traverses all contents on the page of the external OFD document to be added, including but not limited to all visible page contents such as page objects, annotation objects and signatures, and classifies the contents according to the types of the contents, and then the contents are processed by the corresponding subtype data migration engine. Each subtype data migration engine specifically analyzes the data of the type, establishes a pre-migration page content data model according to each attribute of the data, then creates corresponding OFD document page content in the document according to the data model, and completes the basic data migration of the page content of the referred external OFD document in the document through the processing process. The document resource migration engine traverses all resource IDs used by the page content of the external OFD document to be added, analyzes the resource data of the external OFD document, establishes a pre-migration resource data model, then creates corresponding resource data in the document according to the data model, obtains the ID of each newly-created resource data, and establishes a mapping relation between the resource ID used by the added content and the newly-created resource ID of the document. And finally traversing the basic data created by the page content data migration engine in the text, and replacing the resource ID according to the resource ID mapping relation.
The intelligent area correction engine is responsible for correcting the content of the page newly created by the intelligent data migration engine in the document. Firstly, coordinate conversion is carried out on a target area dragged and pulled out on a document page by a user through a mouse to obtain corresponding document coordinates, then, a scaling parameter of page content to be added under the condition of keeping the aspect ratio is calculated according to the size of the target area and the size of an external OFD document page with the added content, and further, an application matrix of the page content is calculated and finally applied to the newly created page content. While keeping the added page content displayed centrally in the target area, new coordinates of the newly created page content are calculated and corrected.
Through the processing of the intelligent data migration engine and the intelligent area correction engine, the added external OFD document page content is perfectly added into the target area of the content to be added in the document, all original attributes of the added external OFD document page content are simultaneously reserved, including semantic attributes and vector characteristics of the added external OFD document page content, the added external OFD document page content can be searched and selected, scaling can be carried out according to the scaling of the page, the related operation effect is equal to the operation of the original content of the page, and the user experience is better.
As shown in fig. 2, a specific implementation diagram of a method for adding external OFD page contents in an OFD file according to an embodiment of the present application is provided, where a requester of an operation is a client user, an object of the operation is an OFD document, and a response of the operation is real-time. The main actions of the operation are: and clicking and dragging by a mouse, selecting an external OFD document and a page number of a page of specified added content, and carrying out intelligent data migration processing and intelligent area correction. The operation flow is as follows: clicking and dragging the mouse; selecting an external OFD document and specifying an added content page number; intelligent data migration processing; and (6) correcting the intelligent area.
Specifically, an OFD document is opened, and an add tool is selected; clicking a page by a mouse and dragging out a target area; selecting an external OFD document and setting page numbers of pages to which contents are to be added; calling an intelligent data migration engine, traversing page data of a specified page of an external OFD document and resource data used by the page data, calling an internal sub-processing engine to finish migration of the page data and the resource data, and creating new page content data and new resource data; calling an intelligent area correction engine, and calculating a scaling parameter of the added page content according to the size position of the target area and the page size of the designated page of the external OFD document; and the intelligent area correction engine performs scaling correction on the newly created page content according to the scaling parameters calculated in the steps, calculates new coordinates of the newly created page content under the condition that the added page content is kept to be displayed in the target area in a centered mode, and performs correction. And writing the corrected page data into the OFD document according to the OFD standard data format. And re-rendering the page, and correctly displaying the added external OFD document page data in the target area.
In the method and the device for adding the page content of the external OFD document in the OFD document, a pre-migration data model is established for the basic data of the page content to be added and the used resource data through a built-in intelligent data migration engine, new page content and resource data are created in the OFD document, and data migration and new creation processing of the page content of the external OFD document to be added can be completed perfectly; according to the page size and the target area size of the added external OFD document, the scaling parameter and the position parameter of the added content are calculated through the intelligent area correction engine, the page content created by the intelligent data migration engine is corrected by applying the scaling and position parameters, the newly created page content is guaranteed to be correctly and centrally displayed in the target area of the content to be added, and the scaling and position parameters of the newly created page content in the OFD document can be correctly corrected. Through the process of adding the page content of the external OFD document, the semantic and vector characteristics of the original page content can be completely reserved, the added external OFD page content can be searched and selected and can be scaled along with the scaling of the page at the same ratio, the related operation effect is equal to the operation of the original content of the page, the operation of the whole process is simple and efficient, and the user experience is good.
As shown in fig. 3, a schematic structural diagram of an apparatus for adding external OFD page content in an OFD file according to an embodiment of the present application includes:
the first creating module 310 is configured to create, in the current OFD file, an OFD page content corresponding to a page content of a specified page of the external OFD file, according to the page content.
Specifically, the first creating module 310 is specifically configured to traverse all page contents of a specified page of the external OFD file, and classify the page contents; and establishing a data model of the page content according to the attribute of each type of page content, and creating OFD page content corresponding to the page content in the current OFD file according to the data model.
The second creating module 320 is configured to create, according to the resource data used by the page content of the specified page of the external OFD file, corresponding OFD resource data in the current OFD file.
Specifically, the second creating module 320 is specifically configured to traverse original resource IDs used by all page contents of a specified page of an external OFD file, and analyze resource data of the external OFD file according to the original resource IDs; and establishing a data model of the resource data, establishing corresponding resource data in the current document according to the data model to obtain the ID of each newly-established resource data, and establishing a mapping relation between the original resource ID and the ID of the newly-established resource data.
The establishing module 330 is configured to establish mapping between the OFD resource data and the OFD page content.
Specifically, the establishing module 330 is specifically configured to traverse the OFD page content created in the current document, and replace an ID of resource data used by the OFD page content with an ID of new resource data corresponding to the original resource ID.
In this embodiment, the above apparatus further includes:
the correction module is used for carrying out coordinate conversion on a target area selected by a user on the page of the current document to obtain a corresponding document coordinate; calculating a scaling parameter according to the size of the target area and the size of the page content of the designated page, and calculating an application matrix of the page content according to the scaling parameter; and applying the application matrix to the OFD page content, calculating new coordinates of the OFD page content under the condition that the page content of the specified page is kept to be displayed in the target area in a centered manner, and correcting the OFD page content based on the new coordinates.
According to the page content of the specified page of the external OFD file and the resource data used by the page content, the corresponding OFD page content and OFD resource data are created in the current OFD file, the semantic attribute of the page content of the specified page of the external OFD file can be completely reserved in the current OFD file, and the page content can be searched and selected.
The embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements each process of the above-mentioned method embodiment for adding external OFD page content in an OFD file, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, 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 phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method for adding external OFD page contents in an open fixed-layout document OFD file, comprising the steps of:
according to the page content of the appointed page of the external OFD file, creating OFD page content corresponding to the page content in the current OFD file;
creating corresponding OFD resource data in the current OFD file according to the resource data used by the page content of the specified page of the external OFD file;
and establishing mapping between the OFD resource data and the OFD page content.
2. The method according to claim 1, wherein the creating, according to the page content of the specified page of the external OFD file, the OFD page content corresponding to the page content in the current OFD file specifically comprises:
traversing all page contents of a specified page of an external OFD file, and classifying the page contents;
and establishing a data model of the page content according to the attribute of each type of page content, and creating OFD page content corresponding to the page content in the current OFD file according to the data model.
3. The method according to claim 2, wherein the creating, according to the resource data used by the page content of the specified page of the external OFD file, the corresponding OFD resource data in the current OFD file specifically comprises:
traversing original resource IDs used by all page contents of a specified page of an external OFD file, and analyzing resource data of the external OFD file according to the original resource IDs;
and establishing a data model of the resource data, establishing corresponding resource data in the current document according to the data model, obtaining the ID of each newly-established resource data, and establishing a mapping relation between the original resource ID and the ID of the newly-established resource data.
4. The method according to claim 3, wherein the mapping the OFD resource data with the OFD page content specifically comprises:
traversing the OFD page content created in the current document, and replacing the ID of the resource data used by the OFD page content with the ID of the newly created resource data corresponding to the original resource ID.
5. The method according to claim 1, wherein, after creating the OFD page content corresponding to the page content in the current OFD file according to the page content of the specified page of the external OFD file, further comprising:
performing coordinate conversion on a target area selected by a user on the page of the current document to obtain a corresponding document coordinate;
calculating a zooming parameter according to the size of the target area and the size of the page content of the designated page, and calculating an application matrix of the page content according to the zooming parameter;
and applying the application matrix to the OFD page content, calculating new coordinates of the OFD page content under the condition that the page content of the specified page is kept to be displayed in the target area in a centered manner, and correcting the OFD page content based on the new coordinates.
6. An apparatus for adding external OFD page contents in an OFD file, comprising:
a first creating module, configured to create, in a current OFD file, an OFD page content corresponding to a page content of an assigned page of an external OFD file according to the page content;
a second creating module, configured to create, according to resource data used by page content of an assigned page of an external OFD file, corresponding OFD resource data in the current OFD file;
and the establishing module is used for establishing mapping between the OFD resource data and the OFD page content.
7. The apparatus of claim 6,
the first creating module is specifically configured to traverse all page contents of a specified page of an external OFD file, and classify the page contents; and establishing a data model of the page content according to the attribute of each type of page content, and creating OFD page content corresponding to the page content in the current OFD file according to the data model.
8. The apparatus of claim 7,
the second creating module is specifically configured to traverse original resource IDs used by all page contents of an assigned page of an external OFD file, and analyze resource data of the external OFD file according to the original resource IDs; and establishing a data model of the resource data, establishing corresponding resource data in the current document according to the data model to obtain the ID of each newly-established resource data, and establishing a mapping relation between the original resource ID and the ID of the newly-established resource data.
9. The apparatus of claim 8,
the establishing module is specifically configured to traverse the OFD page content created in the current document, and replace an ID of resource data used by the OFD page content with an ID of newly-created resource data corresponding to the original resource ID.
10. The apparatus of claim 6, further comprising:
the correction module is used for carrying out coordinate conversion on a target area selected by a user on the page of the current document to obtain a corresponding document coordinate; calculating a scaling parameter according to the size of the target area and the size of the page content of the designated page, and calculating an application matrix of the page content according to the scaling parameter; and applying the application matrix to the OFD page content, calculating new coordinates of the OFD page content under the condition that the page content of the specified page is kept to be displayed in the target area in a centered manner, and correcting the OFD page content based on the new coordinates.
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| CN117521605A (en) * | 2024-01-04 | 2024-02-06 | 北京点聚信息技术有限公司 | Electronic signature method and system for OFD format file |
| CN117521605B (en) * | 2024-01-04 | 2024-03-15 | 北京点聚信息技术有限公司 | Electronic signature method and system for OFD format file |
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