JP2013125486A - Information processing device and display control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device that can suitably perform animation display of page movement while controlling the load to the device even when a plurality of pages are moved and a display control program.SOLUTION: An information processing device has a function to perform preview display of the page of a document and a function to perform animation display of page movement. A controller is provided that performs animation display by omitting at least one page between a first page subjected to preview display and a second page separated from the first page for a plurality of pages when page movement from the first page to the second page is subjected to animation display.

Description

  The present invention relates to an information processing apparatus and a display control program, and more particularly to an information processing apparatus capable of displaying a preview of a document and displaying an animation when a page is moved, and a display control program that operates in a system including the information processing apparatus.

  When printing a document, if various print settings are made, it is sometimes difficult to predict the finished product. In order to solve this problem, a preview display that can reflect the print settings has become widespread, and in the preview display, the actually printed finish can be confirmed on the display in advance. Also, when browsing a document, a plurality of pages can be confirmed on the display by using the preview display.

  In some applications, in the preview display of a document, an animation may be displayed when a page is moved. Animated display is an expression on the display of moving from one page to another page by turning or sliding the page. This animated display allows the user to return the page when moving the page. It is possible to intuitively check whether it has been advanced or not, and the finished printed matter.

  As a technique related to the page turning of the document, for example, in Patent Document 1 below, in a client / server system in which a client computer and a server computer storing document data editable by the client computer are connected via a network, A configuration is disclosed that includes a preview data creating device that creates preview data that enables page turning display of the contents of the document data on the client computer based on document data stored in a server computer.

  In Patent Document 2 below, the stationary left page and the left side thickness of the variable book are displayed on the left side of the book, and the stationary right page and the right side thickness of the variable book are displayed on the right side of the book. Displaying at least two pages simultaneously moving from the right side to the left side of the book and at least one from the left side to the right side of the book, and displaying the moving speed in the electronic book, Disclosed is a method for displaying flipping pages of an electronic book provided on a display device, wherein the number of pages is proportional to the selectable flip speed and the movement speed in the electronic book is proportional to the selectable flip speed. Has been.

JP 2009-169466 A JP 2005-502963 A

  As an input method frequently used for moving to a page in the vicinity of the page being browsed, a flicking operation on the page (a mouse pointer may be used or a touch panel may be touched with a finger). There are a method of moving a page, a method of pressing a button corresponding to “forward” and “back”, and the like. On the other hand, as a method of moving to a distant page, there are a method of directly inputting the number of pages, a method of selecting from thumbnails, and the like. Alternatively, there may be a method in which a button for moving to a specific page such as the first or last page is prepared in advance and the button is pressed.

  However, when moving to a distant page, it is not effective to show the moving page in an animation display by actually sliding and turning dozens of pages. This is because if you turn pages at the same speed, it takes a long time to display an animation that moves dozens of pages. If the page turning speed is increased in order to shorten the period, the contents of the document become invisible, and the animation display becomes meaningless when the number of pages exceeds a certain number.

  Furthermore, the movement of many pages faithfully in a moment is affected by various restrictions depending on the execution environment of the application. For example, in some cases, it may be considered that the data of the destination page has not been rendered yet. Also, holding many pages of images may consume a lot of memory in the execution environment and slow down the operation.

  From such a background, it is desirable to set an upper limit for the number of pages to be animated when moving pages, but the number of pages suitable for the upper limit varies depending on the execution environment, and there is a problem that it cannot be determined unconditionally. is there.

  The present invention has been made in view of the above problems, and the main purpose of the present invention is to appropriately animate the page movement while suppressing the load on the apparatus even if the movement is a plurality of pages. An information processing apparatus and a display control program that can be used are provided.

  In order to achieve the above object, the present invention provides an information processing apparatus having a function for previewing a page of a document and a function for displaying an animation of page movement, from the first page displayed as a preview, When displaying the page movement to the second page separated from the first page by animation, at least one page between the first page and the second page is omitted, and the animation is displayed. The control part which performs is provided.

  In addition, the present invention is a display control program that operates in a system including an apparatus having a function of previewing a page of a document and a function of displaying an animation of page movement, and the preview display is performed on the apparatus in the system. At least between the first page and the second page when the page movement from the first page to the second page that is a plurality of pages away from the first page is animated. One page is omitted, and a process for displaying an animation is executed.

  According to the information processing apparatus and the display control program of the present invention, even when a plurality of pages are moved, the page movement can be appropriately displayed while suppressing the load on the apparatus.

  The reason is that when the information processing device (display control program) animates the page movement from the current page being previewed to a destination page that is more than one page away, the current page and the destination page are displayed. This is because animation display is performed by omitting at least one page between and.

  Thereby, even when many pages are moved using an application capable of preview display, the page movement can be intuitively confirmed. In addition, when many pages of images cannot be acquired at once, the number of pages to be animated changes depending on the execution environment, so the waiting time until the desired page image is displayed is shortened, and the user convenience Can be improved.

1 is a diagram schematically illustrating an overall configuration of a printing system according to an embodiment of the present invention. 1 is a block diagram illustrating a software configuration of a printing system according to an embodiment of the present invention. It is a flowchart figure which shows the process of the client terminal which concerns on one Example of this invention. It is a figure which shows the page displayed by an animation. It is a figure which shows an example of the screen (Preview display of the present page) displayed on the client terminal which concerns on one Example of this invention. It is a figure which shows an example of the screen (The animation display of the page of the present page and its vicinity) displayed on the client terminal which concerns on one Example of this invention. It is a figure which shows an example of the screen (animation display of the page near the current page) displayed on the client terminal concerning one Example of this invention. It is a figure which shows an example of the screen (The animation display of the page near the page near the present page, and the page of a movement destination) displayed on the client terminal which concerns on one Example of this invention. It is a figure which shows an example of the screen (Animation display of the page of a movement destination and the page of the vicinity) displayed on the client terminal which concerns on one Example of this invention.

  As shown in the background art, in the document preview display, it is possible to display an animation of moving from one page to another. However, when moving to a distant page, if all pages are animated, it takes time until the desired page is displayed, and if the page turning speed is increased, the contents of the document become invisible. End up. In addition, in order to animate the movement of many pages, the data of each page must be rendered quickly, and holding images of many pages consumes a lot of memory in the execution environment. The problem that the load of the apparatus becomes large arises.

  Therefore, in one embodiment of the present invention, when previewing a page that is a plurality of pages away from the current page, the intermediate page is omitted, the current page and its neighboring pages, and the destination page and its neighboring pages. Animate the page. Furthermore, the number of pages to be animated is changed according to the execution environment.

  Specifically, in an information processing apparatus (display control program) capable of displaying a preview of the contents of a document and capable of intuitively confirming page movement, when a user issues a page movement instruction, While displaying the preview image of the current page and its neighboring pages, the preview image of the destination page and its neighboring pages is acquired, and the current page and its neighboring pages are followed by the destination page and its neighboring pages. Animate.

  The present invention is a technique related to page movement of a document composed of a plurality of pages, and can be applied to an apparatus intended for browsing the document. In the following embodiment, printing is performed when printing a document. A case where the display control of the present invention is applied to the preview display will be described.

  In order to describe the above-described embodiment of the present invention in more detail, an information processing apparatus and a display control program according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram schematically illustrating an overall configuration of a printing system according to the present exemplary embodiment, and FIG. 2 is a block diagram illustrating a software configuration of the printing system. FIG. 3 is a flowchart showing the processing of the client terminal according to the present embodiment, and FIG. 4 is a diagram showing the relationship of the pages to be animated. 5 to 9 are diagrams illustrating examples of screens displayed on the client terminal according to this embodiment.

  As illustrated in FIG. 1, the printing system 10 according to the present exemplary embodiment includes one or more client terminals 20 that instruct printing, a Web server 30 that provides a Web service to the client terminals 20, and one or more that executes printing. The printing apparatus 40 includes a LAN (Local Area Network) and a WAN (Wide Area Network) defined by standards such as Ethernet (registered trademark), token ring, and FDDI (Fiber-Distributed Data Interface). They are connected to each other by a network 50. Then, the Web server 30 renders the page to generate a page image, passes the page image to the client terminal 20, and the client terminal 20 generates and displays an image for preview display based on the page image. Hereinafter, each device will be described in detail.

[Client terminal]
The client terminal 20 is an information processing apparatus such as a personal computer, a portable terminal, or a tablet terminal, and includes a control unit, a display unit, an operation unit, and the like.

  The control unit includes a CPU (Central Processing Unit), a memory such as a ROM (Read Only Memory) and a RAM (Random Access Memory), an HDD (Hard Disk Drive), a communication I / F unit, etc., which are connected via a bus. Connected. The CPU controls each unit. The memory is a part for temporarily storing various data read from the HDD and communication I / F unit. The stored data is processed by the CPU and transferred to the HDD and communication I / F unit as necessary. The The HDD includes a program for the CPU to control each unit (a printer driver that enables various settings related to printing, a program for realizing a Web client function that enables the Web service provided by the Web server 30, and the like). ), Information related to the processing function of the device itself is stored, read by the CPU as needed, and executed on the memory. The communication I / F unit is configured by a NIC (Network Interface Card), a modem, or the like, establishes a connection with a device connected via the network 50, and executes data transmission / reception.

  The display unit is composed of an LCD (Liquid Crystal Display) or the like, and displays a file selection screen for selecting a document file to be printed, a print setting screen for setting printing conditions, and the like on the print setting screen or other screens. A print preview image provided from the Web server 30 is displayed. The operation unit includes a keyboard, a mouse, and the like, and enables a print setting operation on a print setting screen, an operation on a print preview image, and the like.

[Web server]
The Web server 30 is an information processing apparatus such as a personal computer, and includes a control unit and the like.

  The control unit includes a CPU, a memory such as a ROM and a RAM, an HDD, a communication I / F unit, and the like, which are connected via a bus. The CPU controls each unit. The memory is a part for temporarily storing various data read from the HDD and communication I / F unit. The stored data is processed by the CPU and transferred to the HDD and communication I / F unit as necessary. The The HDD stores a program for the CPU to control each unit (including a program for realizing a Web server function for providing the Web service to the client terminal 20), information on the processing function of the own device, and the like. Thus, it is read out as necessary and executed on the memory. The communication I / F unit includes a NIC, a modem, and the like, establishes a connection with a device connected via the network 50, and executes data transmission / reception.

[Printer]
The printing apparatus 40 is an image forming apparatus such as an MFP (Multi Function Peripheral), and includes a control unit, a display unit, an operation unit, a drawing processing unit, a printing unit, and the like.

  The control unit includes a CPU, a memory such as a ROM and a RAM, an HDD, a communication I / F unit, and the like, which are connected via a bus. The CPU controls each unit. The memory is a part for temporarily storing various data read from the HDD and communication I / F unit. The stored data is processed by the CPU and transferred to the HDD and communication I / F unit as necessary. The The HDD stores a program for the CPU to control each unit, information on processing functions of the own device, and the like are read by the CPU as necessary and executed on the memory. The communication I / F unit includes a NIC, a modem, and the like, establishes a connection with a device connected via the network 50, and executes data transmission / reception.

  The display unit includes an LCD or the like, and displays various screens related to printing. The operation unit includes a touch panel and enables various operations related to printing.

  The drawing processing unit analyzes the print job received from the Web server 30 and rasterizes the data of each page to create print data.

  The printing unit is an element necessary for image formation using an image forming process such as an electrophotographic method or an electrostatic recording method, that is, a charging device, a photosensitive drum, an exposure device, a transfer roller, a transfer belt, a fixing device, etc. Consists of. Specifically, the photosensitive drum charged by the charging device is irradiated with light corresponding to the print data from the exposure device to form an electrostatic latent image, and the charged toner is attached and developed by the developing device. The toner image is transferred to a paper medium via a primary transfer roller and a secondary transfer belt, and is fixed by a fixing device.

  In the present embodiment, the printing apparatus 40 includes only a printing function, but may include a scanning function, a facsimile function, and the like.

  The client terminal 20 and the Web server 30 are controlled by an OS (Operating System), and software (Web application) that controls print preview display in this embodiment is stored in the client terminal 20 and the Web server 30. Is done. FIG. 2 shows functions of software executed in the printing system 10 of this embodiment. When the software functions as a document viewer application instead of a print preview application, the printing device 40, the print job generation unit 32, the print setting unit 25, and the function for exchanging information with them shown in FIG. 2 are not necessarily required. Absent.

  As shown in FIG. 2, the control unit of the Web server 30 functions as a data management unit 31, a print job generation unit 32, and the like by a Web application.

  The data management unit 31 manages Web application programs, screen information, and document files to be processed. The client terminal 20 downloads the program and screen information from here, and performs internal processing and image display of the Web application via the Web browser. In addition, the data management unit 31 delivers the document file managed here to the print job generation unit 32, renders a page included in the document file, and displays the page image as a preview display image of the client terminal 20. It transmits to the management part 26.

  The print job generation unit 32 prints a document selected by the file selection unit 22 of the client terminal 20 and transferred from the data management unit 31 based on the print setting information input by the print setting unit 25 of the client terminal 20. Generate the print job to be instructed. The print job data generated here is transmitted to the printing apparatus 40, and the printing apparatus 40 prints out the document.

  As shown in FIG. 2, the control unit of the client terminal 20 functions as an image display unit 21, a preview display image management unit 26, and a preview display image generation unit 27 by a Web application. The image display unit 21 includes a file selection unit 22, a preview operation unit 23, a preview display unit 24, a print setting unit 25, and the like, and displays a screen for setting and preview viewing on the Web browser.

  The file selection unit 22 selects a document file as a target for displaying a print preview image. The selected document file is uploaded to the Web server 30 side and managed by the data management unit 31 of the Web server 30.

  The preview operation unit 23 performs preview screen operations such as page movement, enlargement / reduction, and rotation on the print preview image.

  The preview display unit 24 displays the print preview image generated by the preview display image generation unit 27 on the print setting screen on the Web browser.

  The print setting unit 25 displays a user interface for print settings on the Web browser based on the screen information acquired from the data management unit 31 of the Web server 30. It also controls the print settings and accepts / manages input from the user.

  The preview display image management unit 26 requests a required page image from the data management unit 31 of the Web server 30 based on the operation information in the preview operation unit 23, and acquires the page image rendered by the data management unit 31. To do. Further, after requesting a page image to the data management unit 31, the preview display image generating unit 27 generates a preview display image, and the time until the image is displayed on the preview display unit 24 and a predetermined page. Then, from the time required for displaying the animation of the image of the neighboring page, an appropriate number of pages to be displayed at the time of executing the page movement animation (number of neighboring pages at the movement destination) is calculated and notified to the data management unit 31.

  Based on the print setting information set by the print setting unit 25, the preview display image generating unit 27 simulates the print result for the page image acquired from the data management unit 31, and displays an image for preview display (print preview image). ) Is generated. Specifically, Nin1 allocation processing, superposition of staple images and punch hole images, folding simulation processing, monochrome conversion processing, and the like are performed. At this time, a suitable image is generated based on a command such as page designation, enlargement / reduction, and rotation in the preview operation unit 23.

  In this embodiment, the client terminal 20 generates and displays a print preview image according to the input print setting. However, the Web server 30 displays the print preview image according to the print setting input at the client terminal 20. It is also possible to generate and provide the client terminal 20 with the configuration.

  Hereinafter, processing of the client terminal 20 when a print preview image is displayed on the Web browser screen of the client terminal 20 will be described with reference to a flowchart of FIG.

  First, the user accesses the Web server 30 with the Web browser of the client terminal 20, starts a Web application (S101), and selects a document file for which a print preview image is to be displayed by the file selection unit 22 (S102). .

  Next, the preview display unit 24 displays a preview display screen based on the screen information acquired from the Web server 30 (S103).

  Next, the preview display image management unit 26 is a specific device predetermined by the client terminal 20 (for example, a device in which the number of neighboring pages of the movement destination is registered in advance in the data management unit 31 of the Web server 30). If it is not a specific device (No in S104), the preview display image generating unit 27 generates the first print preview image while measuring the processing time, and the preview display unit 24 A print preview image is displayed (S105). Then, the preview display image management unit 26 determines whether the processing time from the request of the page image to the data management unit 31 to the end of generation / display of the print preview image can be measured (S106). If it is possible (Yes in S106), the number of neighboring pages of the movement destination is calculated based on the measurement time (S108), and can be measured for some reason (for example, interruption of other processing occurred during measurement). If not (No in S106), the number of neighboring pages at the movement destination is set to a default value (S107).

  In the calculation of S108, the number of neighboring pages of the movement destination is determined by the client terminal 20 from the time when the user instructs the movement of the page (after designating the movement destination page) until the animation of the current number of neighboring pages ends. The number of page images that can be acquired. A specific calculation method will be described later. The number of page images that can be acquired is the time required for the data management unit 31 to render a page, the preview display image generation unit 27 generates a print preview image, and the preview display unit 24 displays the print preview image. And the time required for the animation display of the print preview image. Further, it is desirable that the default value of S107 be a small number of neighboring pages at the movement destination so that most client terminals 20 can reliably display animation.

  On the other hand, when the client terminal 20 is a specific device (Yes in S104), the preview display image management unit 26 obtains the number of neighboring pages suitable for the device from the data management unit 31 of the Web server 30. Obtained as a preset value (S109), the preview display image generating unit 27 generates the first print preview image, and the preview display unit 24 displays the print preview image as the current page (S110).

  The preset value in S109 is preferably the number of neighboring pages at the destination that can be reliably processed within the capability when it is known in advance that the animation capability of the client terminal 20 is limited.

  After the first print preview image is displayed as the current page, the preview display image management unit 26 acquires an image of the current neighboring page from the data management unit 31 of the Web server 30 (S111). . That is, a page image in the vicinity of the current page is acquired in advance before the user instructs page movement, and when the user instructs page movement, an animation display of the previously acquired page is performed. In the meantime, a destination neighborhood page is prepared. Here, the neighboring pages are several pages before and after a predetermined number before and after the current page as a reference. As shown in FIG. It will be expressed in animation.

  Next, the preview display image management unit 26 calculates the number of animated pages by adding the number of neighboring pages to the movement destination to the number of pages of the current neighboring page being animated (S112). For example, as shown in FIG. 4, if the number of neighboring pages to be moved is 6 pages, and the front or back 5 pages are animated in the current neighboring pages, the number of animation pages is 11 pages. Become.

  Thereafter, when the user gives an instruction to move the page using the preview operation unit 23 (Yes in S113), the preview display image management unit 26 determines that the number of pages from the current page to the destination page is equal to or less than the number of animation pages. (S114), and if it is less than the number of animation pages (Yes in S114), images of pages not held by the client terminal 20 among all the pages up to the destination page are sent to the Web server 30. A request is made (S115).

  On the other hand, when the number of pages from the current page to the destination page exceeds the number of animation pages (No in S114), the Web server 30 is requested for an image of the destination neighboring page (S116). For example, if the current page is the 10th page, the destination page is the 30th page, and the number of neighboring pages of the destination is 4, the 27th, 28th, 29th, Each image of 30 pages is requested to the Web server 30, and the data management unit 31 starts rendering of the requested page.

  When the preview display image management unit 26 requests a page image, the preview display unit 24 starts a page movement animation (S117). The animation starts before the client terminal 20 finishes acquiring the image of the destination neighboring page, but the client terminal 20 has acquired the image of the destination neighboring page before the animation of the current neighboring page ends. .

  When the page movement animation ends, the destination page becomes the current page, and the neighboring pages are acquired again. At this time, since it is assumed that a part of the neighboring pages has already been acquired for the previously executed animation display, only the part that has not been acquired is newly acquired.

  Here, the calculation of the number of neighboring pages at the movement destination in S108 of FIG. 3 is as follows. The number of integer parts obtained by dividing the time taken to display the animation of the current neighborhood page by the time taken to actually display the image per page from the Web server 30 is the neighborhood of the destination Calculated as the number of pages. Further, as described above, the number of animation pages is a number obtained by adding the number of current neighboring pages to be displayed in animation to the number of neighboring pages to be moved.

  For example, assuming that the current neighboring page is the current page and four pages before and after the current page, when the current page is the 10th page, the client terminal 20 holds images from the 6th page to the 14th page. it seems to do. When the pages after the 15th page are the destination pages, 5 pages from the 10th page to the 14th page are displayed as animations, and when the animation time per page is 1.0 second, The time taken for animation display of the current page and the pages in the vicinity of the current page is 5.0 seconds. Then, assuming that the time from the client terminal 20 requesting the page image to the actual display measured in S105 is 0.8 seconds, 5.0 seconds / 0.8 seconds≈6.3. Therefore, the number of neighboring pages at the movement destination is 6 pages, and the number of animation pages is 11 pages of 6 + 5. That is, the 10th to 14th pages and the 25th to 30th pages are displayed in succession.

  5 to 9 are display examples specifically showing this control. When the current page is the tenth page, the screen shown in FIG. 5 is displayed on the client terminal 20. Then, when the user designates the 30th page as the movement destination page, as shown in FIG. 6, pages ahead of the current page are sequentially displayed on the screen, and pages near the current page (the 11th page) are displayed. When the display of the page to the 14th page is finished, as shown in FIGS. 7 and 8, pages in the vicinity of the destination page (the 25th page to the 29th page) are sequentially displayed, and finally, as shown in FIG. In this way, the destination page is displayed.

  In this way, while the current neighborhood page is displayed as an animation, the user does not need to wait until the page image is actually acquired after acquiring the image of the destination neighborhood page. It is possible to animate the number of displayed images.

  In the above description, the preview display image management unit 26 calculates the number of neighboring pages of the movement destination in advance, but sequentially acquires and prints page images from the movement destination page to the current page side. A method of displaying a preview image may be used.

  For example, when the user designates a destination page, the preview display unit 24 starts displaying an animation of a nearby page from the current page. At the same time, the preview display image management unit 26 requests the data management unit 31 for an image of the movement destination neighboring page. At this time, the image of the page is requested in the order of approaching the current page, starting with the destination page. When the animation display of the current neighboring page is finished, the animation display is performed from the last acquired page toward the destination page.

More specifically, if the current page is the 10th page, the number of pages in the vicinity of the current page is 4 pages, and the destination page is the 30th page, the current page and the pages in the vicinity thereof ( During the animation display of the 10th page to the 14th page, first, an image of the destination page (the 30th page) is acquired, and then the images of the 29th page, the 28th page, and so on in order. To generate a print preview image. When the image of the 26th page is acquired, if the animation display of the current page and its neighboring pages (10th to 14th pages) is finished, the animation display from the 26th page to the 30th page in order. Do. By using such a method, the number of pages to be animated can be changed flexibly.

  In addition, this invention is not limited to the said Example, The structure and control can be changed suitably, unless it deviates from the meaning of this invention.

  For example, in the above-described embodiment, the control for displaying a preview image at the time of printing has been described. However, the display control method of the present invention can be similarly applied to browsing a document without printing.

  In the above embodiment, the Web server 30 renders the page included in the document file and provides the page image to the client terminal 20. The client terminal 20 generates / displays the print preview image. The web server 30 or the client terminal 20 can be configured to generate and display a rendering and print preview image by itself.

  The present invention can be used for an information processing apparatus capable of displaying a preview of a document and displaying an animation when a page is moved, and a display control program operating in a system including the information processing apparatus.

DESCRIPTION OF SYMBOLS 10 Print system 20 Client terminal 21 Image display part 22 File selection part 23 Preview operation part 24 Preview display part 25 Print setting part 26 Preview display image management part 27 Preview display image generation part 30 Web server 31 Data management part 32 Print job Generation unit 40 Printer 50 Network

Claims (8)

An information processing apparatus having a function for previewing a document page and a function for displaying an animation of page movement,
When the page movement from the first page displayed in the preview to the second page that is a plurality of pages away from the first page is animated, the first page and the second page are displayed. Including a control unit that displays an animation, omitting at least one page in between,
An information processing apparatus characterized by that. The controller omits a page between a page near the first page and a page near the second page, and performs an animation display;
The information processing apparatus according to claim 1. The number of pages in the vicinity of the first page is predetermined,
The control unit is an integer value obtained by dividing the time necessary for displaying the animation of the page near the first page by the time necessary for generating and displaying an image for preview display of one page. Is set as the number of pages near the second page, and the page near the second page with the set number of pages is displayed while the page near the first page is animated. And continuously displaying an animation of a page near the first page and an animation of a page near the second page.
The information processing apparatus according to claim 2. The number of pages in the vicinity of the first page is predetermined,
The controller generates an image for preview display in order from the second page toward the first page while displaying an animation of a page in the vicinity of the first page. When the animation display of the pages in the vicinity of the page is finished, the animation display is performed in order from the page that finally generated the preview display image toward the second page.
The information processing apparatus according to claim 2. A display control program that operates in a system including a device including a function for previewing a page of a document and a function for displaying an animation of page movement,
To the devices in the system,
When the page movement from the first page displayed in the preview to the second page that is a plurality of pages away from the first page is animated, the first page and the second page are displayed. Omit at least one page in between, and execute the process of displaying animation,
A display control program characterized by that. In the process, the page between the page near the first page and the page near the second page is omitted, and an animation is displayed.
The display control program according to claim 5. The number of pages in the vicinity of the first page is predetermined,
In the processing, an integer value obtained by dividing the time required for displaying the animation of the page near the first page by the time required for generating and displaying an image for preview display of one page is obtained. The number of pages in the vicinity of the second page is set as the number of pages in the vicinity of the second page. While the page in the vicinity of the first page is animated, An image is generated, and animation display of a page near the first page and animation display of a page near the second page are continuously performed.
The display control program according to claim 6. The number of pages in the vicinity of the first page is predetermined,
In the process, a preview display image is sequentially generated from the second page toward the first page while displaying a page near the first page, and the first page is displayed. When the animation display of the neighboring pages is completed, the animation display is performed in order from the page that finally generated the preview display image toward the second page.
The display control program according to claim 6.

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