JP4663363B2 - Display device, display program, and recording medium for recording display program - Google Patents

Description

  The present invention relates to a display device, a display program, and a recording medium for recording the display program. In particular, the display device includes a plurality of display means and can perform an appropriate display, a display program, and a recording for recording the display program. It relates to the medium.

  In a display device, the layout is not fixed in advance, and a document whose layout dynamically changes depending on the screen of the display device or the size of characters may be displayed.

  Such document data is structured electronic data for executing predetermined processing in accordance with the definition of the document description language, and is a data format for recording a structured document having a hierarchical structure. Extensible Markup Language) is well known.

  As a method for displaying such electronic data input in the display device, there is a method as shown in FIG. That is, referring to FIG. 20, first, the data structure of input electronic data 2001 is analyzed, and an analysis result 2002 is acquired. Next, layout information 2003 indicating where to place parts of the electronic data 2001 such as characters is created based on the analysis results and screen attributes such as screen size, margin, line spacing, and character spacing. Next, actual display image data 2004 is created from the layout information and displayed on the display unit.

  When the layout information is created in the display device, there is a case where a character that is displayed on the edge of the screen and cannot be displayed entirely is not displayed.

In Patent Document 1 below, a data processing method is disclosed in which only layout information necessary for display image data is created and displayed for a long document, and the entire screen is displayed by scrolling the screen.
International Publication Number WO2002 / 103554

  Some display devices include a plurality of display units and display a plurality of screens (first screen to Nth screen). When such a display is performed for N screens in such a display device, there is a problem that an engine for drawing a plurality of screens for holding and controlling layout information and display data information for N screens is required. there were.

  Alternatively, in such a display device, when the above-described display is performed for N screens by using a conventional engine for drawing one screen without newly creating an engine for drawing a plurality of screens, FIG. It is possible to create display image data for N consecutive screens as shown in FIG. 3 and display the data divided into N according to the screen size. However, a memory for layout information for N screens is required. Furthermore, as shown in FIG. 22, there is a problem that characters may be cut and displayed between screens depending on the character size or the like. In addition, when the sizes of the N screens in the main scanning direction are different, there is a problem that this method cannot be used.

  The present invention has been made in view of such problems, and provides a display device capable of performing appropriate display on a plurality of display means provided, a display program, and a recording medium for recording the display program. With the goal.

  In order to achieve the above object, according to an aspect of the present invention, the display device includes N screens from the first screen to the Nth screen, and is a sequence of electronic data in the order from the first screen to the Nth screen. A layout calculation means for performing display and calculating layout of electronic data and acquiring layout information based on a screen attribute of an nth screen which is one of the first screen to the Nth screen Layout information storing means for storing layout information, continuous display head position storing means for storing information indicating the head of continuous display based on the layout information, and a screen selected from the first screen to the Nth screen. The display destination includes display means for performing display based on the layout information.

  Further, the layout calculation means calculates the layout from the top of the continuous display stored in the continuous display position storage means based on the screen attributes of the first screen, and acquires the first layout information. The layout storage means It is preferable to save the layout information.

  The layout calculation means calculates layout based on the screen attributes of the nth screen from the next data at the end of the electronic data displayed on the nth screen, and obtains layout information. The information is overwritten and saved, and the layout calculation means recalculates the layout based on the screen attributes of the (n + 1) th screen with respect to the layout information saved in the layout information saving means, and the (n + 1) th layout information The layout information storage means preferably stores the stored layout information by overwriting the (n + 1) th layout information.

  Here, it is preferable that the continuous display head position storage unit stores the next data at the end of the electronic data displayed on the Nth screen as information indicating the head of the continuous display.

  Alternatively, the layout calculation means calculates the layout from the top of the continuous display stored in the continuous display position storage means based on the screen attributes of the Nth screen, obtains the N ′ layout information, and obtains the N′th layout. The Nth layout information is obtained by calculating the layout based on the screen attributes of the Nth screen from the data before the head of the electronic data indicated in the information, and the (n-1) th of the nth layout information. The (n-1) 'layout information is obtained by recalculating the layout based on the screen attributes of the screen, and the electronic data indicated by the (n-1)' layout information is the first ( (n-1) The layout is calculated based on the screen attributes of the screen to obtain the (n-1) th layout information, and the continuous display head position storage means performs the first 'layout information by the layout calculation means. Based on the first layout information obtained by calculating the layout based on the screen attributes of the first screen from the data before the top of the displayed electronic data, the top of the electronic data displayed on the first screen is displayed. It is preferable to store the data as information indicating the head of continuous display.

  Alternatively, the continuous display head position storage means preferably stores the next data at the end of the electronic data indicated by the first layout information as information indicating the head of continuous display.

  Alternatively, the layout calculation means calculates the layout based on the screen attribute of the first screen from the data before the top of the electronic data indicated by the first layout information, acquires the first ′ layout information, and continuously displays the top The position storage means preferably stores the top data of the electronic data indicated in the first 'layout information as information indicating the top of the continuous display.

  Alternatively, the continuous display head position storage means preferably stores the head data of the second row of the electronic data indicated by the first layout information as information indicating the head of continuous display.

  Alternatively, the layout calculation means calculates the layout from the data before the first line of the first screen of the electronic data indicated in the first layout information based on the screen attributes of the first screen. It is preferable that the first display layout information is acquired, and the continuous display head position storage unit stores the head data of the electronic data indicated by the first ′ layout information as information indicating the head of the continuous display.

  According to another aspect of the present invention, the display program includes N screens from the first screen to the Nth screen, and the electronic program in the display device that continuously displays electronic data in the order from the first screen to the Nth screen. A program that causes a computer to display data, and calculates the layout of electronic data based on the screen attributes of the nth screen, which is one of the 1st through Nth screens, and obtains layout information A layout calculation step for storing, a layout information storing step for storing layout information, a continuous display head position storing step for storing information indicating the head of the continuous display based on the layout information, and a first screen to an Nth screen. A display step for performing display based on the layout information is executed on the display destination selected from the above.

  Further, in the layout calculation step, based on the screen attributes of the first screen, the first layout information is obtained by calculating the layout from the top of the continuous display stored in the continuous display position storage step, and in the layout storage step One layout information is preferably stored.

  The layout calculation step includes a first step of calculating layout based on screen attributes of the nth screen from the next data at the end of the electronic data displayed on the nth screen, and acquiring layout information; The information includes a second step of recalculating the layout based on the screen attributes of the (n + 1) th screen to obtain the (n + 1) th layout information, and the layout information storing step includes the layout calculation step The layout information acquired in the first step is overwritten and saved, and the layout information saved in the step is overwritten with the (n + 1) th layout information acquired in the second step of the layout calculation step. Preferably, a step is included.

  Here, in the continuous display head position storing step, it is preferable to store the next data at the end of the electronic data displayed on the Nth screen as information indicating the head of the continuous display.

  Alternatively, in the layout calculation step, based on the screen attributes of the Nth screen, a step of calculating the layout from the top of the continuous display stored in the continuous display position storage step and acquiring the N′th layout information, 'The step of calculating the layout based on the screen attributes of the Nth screen from the preceding data of the electronic data indicated in the layout information to obtain the Nth layout information; n-1) recalculating the layout based on the screen attributes of the screen to obtain the (n-1) ′ th layout information, and the top of the electronic data indicated by the (n−1) ′ th layout information Calculating the layout based on the screen attributes of the (n−1) th screen from the previous data and obtaining the (n−1) th layout information, In the head position saving step, in the layout calculation step, the first layout obtained by calculating the layout based on the screen attributes of the first screen from the data before the head of the electronic data indicated in the first 'layout information Based on the information, it is preferable to store the top data of the electronic data displayed on the first screen as information indicating the top of the continuous display.

  Alternatively, in the continuous display head position storing step, it is preferable to store the next data at the end of the electronic data indicated in the first layout information as information indicating the head of the continuous display.

  Alternatively, in the layout calculation step, the first ′ layout information is obtained by calculating the layout based on the screen attributes of the first screen from the data before the top of the electronic data indicated by the first layout information, and the continuous display top In the position storing step, it is preferable to store the top data of the electronic data indicated by the first ′ layout information as information indicating the top of the continuous display.

  Alternatively, in the continuous display head position storing step, it is preferable to store the top data of the second row of the electronic data indicated by the first layout information as information indicating the top of the continuous display.

  Alternatively, in the layout calculation step, based on the screen attributes of the first screen, the layout is calculated from the data before the first line of the first screen of the electronic data indicated in the first layout information. Thus, it is preferable that the first ′ layout information is acquired, and the top data of the electronic data indicated by the first ′ layout information is stored as information indicating the top of the continuous display in the continuous display head position storing step.

  According to still another aspect of the present invention, the recording medium is a computer-readable recording medium and records the above display program.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is a diagram illustrating a specific example of the display device 1 according to the present embodiment. The display device according to the present embodiment includes a plurality of display units and is displayed on a screen displayed on each display unit. Content can be displayed continuously. In FIG. 1, as a specific example, a display device including two display units, a first display unit 10 that displays a first screen and a second display unit 20 that displays a second screen, is shown. , N (where N is 2 or more) display units, and the same generalization as a display device that displays up to the Nth screen.

  Specifically, the display device according to the present invention is realized by a personal computer, a game machine, an electronic book viewer, an electronic dictionary, and a PDA (Personal Digital Assistants) having a plurality of display units. It may be realized.

  FIG. 2 is a block diagram illustrating a specific example of a functional configuration of the display device 1 according to the present embodiment. The function shown in FIG. 2 is a program stored in a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), or an HD (Hard Disc) by a CPU (Central Processing Unit) of the display device 1 (not shown). It is a function that is demonstrated by reading and executing.

  Referring to FIG. 2, display device 1 has a data input unit 102 that reads electronic data 101 recorded from a recording medium such as an external flash memory and inputs data as a functional configuration before processing the data. The data structure analysis unit 103 that analyzes the data structure of the electronic data 101 and the operation input unit 113 that receives a user operation are configured. In the present embodiment, the electronic data 101 is assumed to be data in XML (Extensible Markup Language) format.

  Also, as a functional configuration for processing data, a layout calculation unit 104, a layout information buffer 105, a display image data creation unit 106, a display destination selection unit 107, a user instruction processing unit 109, and a display control unit 110 are displayed. A display position storage unit 108, a first screen display memory 111a to an Nth screen display memory 111n corresponding to N display units (represented by these as the screen display memory 111), and N The first screen 112a to the Nth screen 112n (representatively referred to as the screen 112) displayed on each of the display units. Further, the display position storage unit 108 includes a continuous display head position buffer 1081.

  The data input unit 102 corresponds to an external flash memory slot or the like. The electronic data 101 recorded from a recording medium such as an external flash memory is read and input to the data structure analysis unit 103. The data structure analysis unit 103 analyzes the data structure of the electronic data input from the data input unit 102 and inputs the analysis result to the layout calculation unit 104.

  The operation input unit 113 corresponds to a button or a mouse, and inputs an operation signal to the user instruction processing unit 109 according to a user operation. The user instruction processing unit 109 analyzes the operation signal input from the operation input unit 113 and inputs the instruction signal to the display control unit 110 as necessary.

  The display control unit 110 acquires information about the display position from the display position storage unit 108 based on the instruction signal input from the user instruction processing unit 109, and sends an attribute such as a screen display area size to the layout calculation unit 104. Pass along with to request layout calculation. Further, information regarding the display position is acquired from the layout calculation unit 104 and stored in the display position storage unit 108.

  In addition, the display control unit 110 inputs a control signal to the display destination selection unit 107 to select a predetermined display destination.

  In response to a layout calculation request from the display control unit 110, the layout calculation unit 104 performs layout calculation based on the analysis result input from the data structure analysis unit 103 and the screen attributes input from the display control unit 110. Then, layout information is generated. The layout calculation refers to the position of parts for creating display data for displaying the display screen 2004 on the display units 10 and 20 according to the structure of the electronic data 2001 as described above with reference to FIG. It refers to obtaining an element 2003 such as a shape.

In the layout calculation unit 104, as a specific layout calculation method using an engine for drawing one screen,
(1) Page feed layout calculation: a layout calculation method employed in page feed processing, which calculates a layout that displays the next character after the last character of the current layout information on the screen as the first line;
(2) Layout calculation for page return: a layout calculation method employed in page return processing, which calculates a layout for displaying the character before the first character of the current layout information on the last line of the screen,
(3) Line feed layout calculation: a layout calculation method employed in line feed processing, which calculates a layout to be displayed on the screen with the second line of the current layout information as the first line;
(4) Line return layout calculation: a layout calculation method employed in line return processing, in which a layout to be displayed on the screen with the first line of the current layout information as the second line is calculated;
(5) Layout calculation from the specified position: This is a layout calculation method used in page jump processing, and the layout is calculated according to the size of the display destination screen so that the character at the specified position is displayed on the first line of the screen. (6) Re-layout calculation: a method of calculating a layout in accordance with screen settings such as the size of the display destination screen without changing the display head position. The layout calculation unit 104 is input from the display control unit 110. In accordance with the control signal, a necessary calculation method is employed to calculate the layout and generate layout information. As a layout information generation method, a general generation method as disclosed in, for example, Patent Document 1 is employed.

  The display control unit 110 stores the display position of the displayed electronic data 101 on the screen 112 in the display position storage unit 108 according to the calculation result in the layout calculation unit 104. Further, the first position of the first screen when the electronic data is sequentially displayed on the screen 112 is stored in the continuous display head position buffer 1081 of the display position storage unit 108.

  The layout information buffer 105 corresponds to a predetermined area of the storage device, and stores layout information obtained by calculation by the layout calculation unit 104. The display image data creation unit 106 reads layout information stored in the layout information buffer 105, creates display image data to be displayed on the screen 112, and inputs the display image data to the display destination selection unit 107.

  The display destination selection unit 107 selects the screen display memory 111 corresponding to the screen on which the electronic data 101 is displayed according to the control signal input from the display control unit 110, and the display image input from the display image data creation unit 106. Expand the data. The display image data developed in the screen display memory 111 is displayed on the corresponding screen 112.

  FIG. 3 is a diagram for explaining an overview of display processing in the display device 1 according to the present embodiment. Here, the display device includes three display units of a first display unit to a third display unit, and the electronic data 101 is sequentially displayed on the first screen to the third screen corresponding to the first display unit to the third display unit. It shall be displayed continuously.

  Referring to FIG. 3, data structure analysis unit 103 obtains data 1011 necessary for display on the first screen among electronic data 101 that is XML document data to be displayed, and analyzes the data structure. The layout calculation unit 104 executes layout calculation based on the analysis result of the data structure analysis unit 103 in accordance with the control signal from the display control unit 110, and the layout information to be displayed on the first screen has the size of one screen. It is stored in the layout information buffer 105, which is a buffer (S1).

  The display control unit 110 acquires the first screen start position 1051, which is the current display start position, from the layout information stored in the layout information buffer 105, and the display position storage unit 108 continues. The data is stored in the display head position buffer 1081 (S2). As the start position 1051, for example, the byte position in the XML document data of characters laid out at the top of the screen is used.

  The display image data creation unit 106 creates display image data 1508 for the first screen from the layout information for the first screen stored in the layout information buffer 105 (S3) and displays it on the first screen.

  Next, the data structure analysis unit 103 acquires data 1012 necessary for display on the second screen and analyzes the data structure. The position of the data 1012 necessary to be displayed on the second screen is calculated by the layout calculation unit 104 using the layout information for the first screen currently stored in the layout information buffer 105 to calculate the page feed layout. It is obtained by.

  In the layout calculation unit 104, layout information is created from the analysis result of the data structure analysis unit 103 and stored in the layout information buffer 105 (S4). At this time, since the layout information for the first screen previously stored in the layout information buffer 105 is unnecessary, the layout information for the second screen is stored by overwriting the layout information for the first screen.

  The display image data creation unit 106 creates display image data 1509 for the second screen from the layout information for the second screen stored in the layout information buffer 105 (S5) and displays it on the second screen.

  Next, the data structure analysis unit 103 acquires data 1013 necessary for display on the third screen, and analyzes the data structure. The position of the data 1013 necessary for display on the third screen is calculated by performing layout calculation for page feed using the layout information for the second screen previously stored in the layout information buffer 105 in the layout calculation unit 104. can get.

  In the layout calculation unit 104, layout information is created from the analysis result of the data structure analysis unit 103 and stored in the layout information buffer 105 (S6).

  The display image data creation unit 106 creates display image data 1510 for the third screen from the layout information for the third screen stored in the layout information buffer 105 (S7) and displays it on the third screen.

  Hereinafter, in the display device 1 according to the present embodiment, each display process executed when a continuous portion of electronic data is displayed divided into a plurality of screens will be described. In the following description, the continuous display of electronic data in the order of the first screen to the Nth screen is referred to as “continuous display”.

(Process to switch from individual display mode to continuous display on each screen)
4 and 5 are flowcharts showing a process of switching from the mode in which electronic data is individually displayed on each screen 112 to the continuous display in the display device 1 according to the present embodiment. The processing shown in the flowcharts of FIGS. 4 and 5 is realized by the CPU of the display device 1 (not shown) reading and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 4, when the mode that is individually displayed on each screen 112 is switched to the continuous display and the process of starting the continuous display is executed, first, in display control unit 110, on each screen 112. The current display position is stored in the display position storage unit 108 (S701). This is the processing in the mode displayed on each screen 112 individually.

  Next, the process proceeds to the process during the continuous display, and the display control unit 110 displays the current display position of the electronic data on the screen on which the electronic data to be continuously displayed is displayed among the screens 112a to 112n. The continuous display head position is stored in the continuous display head position buffer 1081 of the display position storage unit 108 (S702). As data indicating the display position, for example, the byte position from the beginning of the electronic data of the first character of the screen is used.

  Next, the display control unit 110 sets the display destination screen to the first screen 112a, which is the first screen, and the screen attribute of the first screen 112a is passed to the layout calculation unit 104 (S703). Note that the process of step S703 may be performed before the process of step S702.

  Next, the display control unit 110 reads out the continuous display head position stored in the continuous display head position buffer 1081 in step S702 and passes it to the layout calculation unit 104. The layout calculation unit 104 starts from the continuous display head position. The layout is calculated according to the screen attributes of the first screen 112a, and layout information for the first screen 112a is generated (S704). The layout information for the first screen 112a generated in step S704 is stored in the layout information buffer 105.

  Next, as step S1409, as common processing that is common in the subsequent processing, processing for displaying continuous electronic data from the top of the first screen 112a to the end of the Nth screen 112n is executed.

  Regarding the common processing in step S1409, referring to FIG. 5, the display image data creation unit 106 reads out the layout information for the first screen 112a stored in the layout information buffer 105 in step S704, and uses the first screen 112a. Is displayed on the display destination screen (first screen 112a) set in step S703 by the display destination selection unit 107 (S1401).

  If the display control unit 110 determines that the end of the electronic data is displayed in step S1401 (YES in step S1402), the common processing of FIG. The process of switching from the mode in which the electronic data is individually displayed on each screen 112 to the continuous display is completed.

  If the display control unit 110 determines that the end of the electronic data is not displayed in step S1401 (NO in step S1402), the layout calculation unit 104 stores it in the current layout information buffer 105 (first screen). The page feed layout calculation is performed using the layout information (for 112a) (S1403), and the generated layout information is stored in the layout information buffer 105. That is, the layout calculation for the first screen 112a is performed from the data next to the data displayed at the end of the first screen 112a using the screen attributes of the first screen 112a, and the generated layout information is the layout information. It is stored in the buffer 105.

  Next, the display control unit 110 sets the display destination screen as the next screen (second screen 112b), and the screen attribute of the second screen 112b is passed to the layout calculation unit 104 (S1404).

  Next, in the layout calculation unit 104, the second screen 112b passed in step S1404 to the layout information generated using the screen attributes of the first screen 112a stored in the layout information buffer 105 in step S1403. The layout is calculated again on the basis of the screen attributes, and layout information for the second screen 112b is generated (step S1405). The generated layout information for the second screen 112b is stored in the layout information buffer 105.

  If the attributes such as the size of each screen provided in the display device 1 are the same, the layout information generated in step S1403 becomes the layout information for the next screen, and the re-layout calculation in step S1405 is unnecessary. It becomes.

  Next, the layout information for the second screen 112b stored in the layout information buffer 105 is read in the display image data creation unit 106 to create display image data for the second screen 112b. In the display destination selection unit 107, It is displayed on the display destination screen (second screen 112b) set in step S1404 (S1406).

  If the display destination screen set in the display destination selection unit 107 in step S1404 is the final screen (YES in S1407), the common processing in FIG. 5 is terminated, and electronic data is individually displayed on each screen 112 in FIG. The process of switching from mode to continuous display ends.

  If the display destination screen set in the display destination selection unit 107 in step S1404 is not the final screen and there is a next screen on the display device 1 (NO in S1407), the process returns to step S1402, and after step S1402 This process is repeated.

  In step S704, the screen top position may be stored in the continuous display top position buffer 1081 after step S704 or step S1401 if layout calculation is performed from the current display position of the screen to be continuously displayed.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  By executing the above process in the display device 1 according to the present embodiment, the first screen 112a of the first display device 10 and the second screen 112b of the second display device 20 shown in FIG. When the continuous display of the electronic data displayed on the second screen 112b is instructed from the mode in which different electronic data are displayed separately, the display as shown in FIG. 7B is realized.

  That is, in step S701, the current display position of the first screen 112a and the current display position of the second screen 112b are saved, and the current display position of the second screen 112b is set in step S704 in accordance with a user instruction. The layout information for the first screen 112a is generated and displayed on the first screen 112a. Subsequently, in common processing S1409, layout information for the second screen 112b following the layout of the first screen 112a is generated and displayed on the second screen 112b.

(Page feed processing for continuous display)
FIG. 8 is a flowchart showing a process for causing the display device 1 according to the present embodiment to page through during continuous display. “Page feed” refers to displaying the next data for the entire screen 112a to 112n (one page) of the currently displayed electronic data. The processing shown in the flowchart of FIG. 8 is also realized by the CPU of the display device 1 (not shown) reading out and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 8, when display control unit 110 determines that the end of the electronic data is not currently displayed (NO in step S801), layout calculation unit 104 performs the same page turning as in step S1403. Layout calculation is performed (S802), and the created layout information is stored in the layout information buffer 105.

  Next, the display control unit 110 sets the display destination screen as the top screen (first screen 112a), and the screen attribute of the first screen 112a is passed to the layout calculation unit 104 (S803).

  Next, in the layout calculation unit 104, the layout information (generated using the previous screen attribute) saved in the layout information buffer 105 in step S802 is stored in the first screen 112a passed in step S803. A layout is calculated again based on the screen attributes, and layout information for the first screen 112a is generated (step S804). The generated layout information for the first screen 112 a is stored in the layout information buffer 105.

  When the attributes such as the size of each screen provided in the display device 1 are the same, the layout information generated in step S802 becomes the layout information for the next screen, and the re-layout calculation in step S804 is unnecessary. It becomes.

  Next, the display control unit 110 acquires the display position of the screen from the layout information for the first screen 112a generated in step S804, and stores it in the continuous display head position buffer 1081 (S805).

  In step S1409, common processing is executed, and electronic data is sequentially displayed from the first screen 112a to the Nth screen 112n.

  Note that the processing in step S805 may be executed after step S802, may be executed after step S803, or may be executed after step S1401.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  By executing the above process in the display device 1 according to the present embodiment, page feed is executed from the display state shown in FIG. 9A, and the next page as shown in FIG. 9B. Is realized.

  In other words, in step S802, the page feed function is called to perform page feed layout calculation, and the layout information for the second screen 112b in FIG. The layout information (“Tomorrow's Iwate… Weather”) for the first screen 112a is created from the data (“Ming”) and displayed on the first screen 112a (FIG. 9B). In step S805, the display position of the first screen 112a (specifically, the first character “bright” or the like) is stored in the continuous display head position buffer 1081.

  Next, in step S1409 of step S1409, the page feed function is called again to perform page feed layout calculation, and layout information ("Tomorrow's Iwate ... weather") on the first screen 112a in FIG. 9B. The layout information for the second screen 112b (“has a cloudy”) from the next data (“ha”) is created and displayed on the second screen 112b (FIG. 9B).

(Continuous display page return processing)
FIG. 10 is a flowchart showing processing for returning the page during continuous display in the display device 1 according to the present embodiment. “Return to page” refers to displaying the data of the electronic data that is currently displayed before the entire screen 112a to 112n (one page). The processing shown in the flowchart of FIG. 10 is also realized by the CPU of the display device 1 (not shown) reading out and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 10, first, the display control unit 110 sets the display destination screen as the final screen (Nth screen 112n), and the screen attribute of the Nth screen 112n is passed to the layout calculation unit 104 (S901).

  Next, the layout calculation unit 104 obtains the continuous display head position (currently the head of the layout of the first screen 112a) stored in the continuous display head position buffer 1081, and starts the Nth screen from that position. The layout calculation is performed based on the screen attributes of 112n and the generated layout information (the layout of the current first screen 112a is recalculated based on the screen attributes of the Nth screen 112n) is stored in the layout information buffer 105. Saved (step S902).

  Further, the layout calculation unit 104 performs page return layout calculation from the layout information stored in step S902, and the created layout information is stored in the layout information buffer 105 (step S903). In other words, the layout information stored in step S902 from the previous data of the layout information in which the layout of the current first screen 112a is recalculated based on the screen attributes of the Nth screen 112n to the previous Nth screen 112n. A layout calculation is performed on the data to generate layout information for the Nth screen 112n.

  When the display control unit 110 determines that the top of the electronic data is not included in the layout information in step S1401 (NO in step S904), the display control unit 110 sets the display destination screen to the previous screen (No. (N− 1) screen 112 (n-1)), and the screen attributes of the (N-1) th screen 112 (n-1) are passed to the layout calculation unit 104 (S905).

  Next, in the layout calculation unit 104, the (N−1) th screen 112 (in the step S905) is transferred from the top data of the layout information (for the Nth screen 112n) currently stored in the layout information buffer 105. The layout calculation is executed based on the screen attributes of (n-1), and the generated (current layout of the Nth screen 112n is calculated based on the screen attributes of the (N-1) th screen 112 (n-1). The layout information that has been redone is stored in the layout information buffer 105 (step S906).

  When the attributes such as the size of each screen provided in the display device 1 are the same, the layout information generated in step S903 becomes the layout information for the next screen, and the re-layout calculation in step S906 is unnecessary. It becomes.

  Moreover, the process of step S905 may be performed after the process of step S906.

  Further, the layout calculation unit 104 performs page return layout calculation similar to step S903 from the layout information stored in step S906, and the generated layout information is stored in the layout information buffer 105 (step S907). . That is, the layout of the current Nth screen 112n is recalculated based on the screen attributes of the (N-1) th screen 112 (n-1), and the (N-1) th data from the previous data of the layout information. The layout calculation is performed on the data up to the screen 112 (n-1) minutes ago, and the layout information for the (N-1) th screen 112 (n-1) is generated.

  The processes in steps S904 to S907 are repeated until the top screen (first screen 112a) is set as the display destination screen in step S905, and the top screen (first screen 112a) is set as the display destination screen in step S905. Then (YES in step S908), the display position of the screen (first screen 112a) is stored in the continuous display head position buffer 1081 (S909).

  If the display control unit 110 determines in step S1401 that the top of the electronic data is included in the layout information (YES in step S904), the display position of the screen is such that the top of the electronic data is the top of the screen. The data is stored in the continuous display head position buffer 1081 (S910), the display destination screen is set to the head screen (first screen 112a), and the screen attributes of the first screen 112a are passed to the layout calculation unit 104 (S911).

  In addition, the process of step S910 may be performed after the process of step S911.

  In the layout calculation unit 104, layout calculation is executed based on the screen attributes of the first screen 112a from the continuous display head position stored in the continuous display head position buffer 1081 in step S910, and the generated layout information is displayed as layout information. The data is stored in the buffer 105 (step S912).

  Thereafter, common processing is executed in step S1409, and electronic data is displayed in order from the first screen 112a to the Nth screen 112n.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  By executing the above processing in the display device 1 according to the present embodiment, the page return is executed from the display state shown in FIG. 11A, and the next page as shown in FIG. Is realized.

  That is, in step S902, a function for jumping to the continuous display head position (specifically, “bright” of the first character) that is the display position of the first screen 112a stored in the continuous display head position buffer 1081 is obtained. Called, layout calculation is executed from that position, and layout information (“Fukuoka tomorrow ...”) for the second screen 112b is created. Note that the layout information generated here is not displayed.

  Next, in step S903, the page return function is called to perform page return layout calculation, and the second screen 112b before the layout information ("Fukuoka tomorrow ...") generated in step S902. The layout information of the data up to this point is created ("Su ... cloudy"). This layout information is recalculated in step S906 to the layout information for the first screen 112a. Note that the layout information generated here is not displayed.

  Further, the page return function is called again in step S907 to perform page return layout calculation. From the layout information (“S....”) Generated in step S906 to the first screen 112a before. The layout information of data for the first screen 112a ("is clear ... cloudy") is created and displayed on the first screen 112a (FIG. 11B). In step S909, the display position of the first screen 112a (specifically, “ha” of the first character) is stored in the continuous display head position buffer 1081.

  Next, in step S1403 of the above step S1409, the page feed function is called and page feed layout calculation is executed, and the layout information ("is clear ... cloudy") on the first screen 112a in FIG. The layout information for the second screen 112b ("S .... is.") From the data ("S") is created and displayed on the second screen 112b (FIG. 11B).

(One-screen feed processing for continuous display)
FIG. 12 is a flowchart showing a process for causing the display device 1 according to the present embodiment to advance one screen during continuous display. “One-screen feed” means that the next data for the first screen (first screen 112a) (one screen) of the currently displayed electronic data is displayed, and the display of each screen is shifted forward by one screen. Refers to that. The processing shown in the flowchart of FIG. 12 is also realized by the CPU of the display device 1 (not shown) reading out and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 12, the display control unit 110 sets the display destination screen as the top screen (first screen 112a), and the screen attribute of the first screen 112a is passed to the layout calculation unit 104 (S1001).

  Next, the layout calculation unit 104 obtains the continuous display head position (currently the head of the layout of the first screen 112a) stored in the continuous display head position buffer 1081, and from that position, step S1001 is obtained. The layout is calculated again based on the screen attributes of the first screen 112a passed in (1), and the layout information for the first screen 112a is generated (step S1002). The generated layout information for the first screen 112 a is stored in the layout information buffer 105.

  Next, the layout calculation unit 104 performs page feed layout calculation using layout information (for the first screen 112a) currently stored in the layout information buffer 105 (S1003), and generates layout information. Is stored in the layout information buffer 105. That is, the layout calculation for the first screen 112a is performed from the data next to the data displayed at the end of the first screen 112a using the screen attributes of the first screen 112a, and the generated layout information is the layout information. It is stored in the buffer 105.

  Next, the display control unit 110 acquires the display position of the screen from the layout information for the first screen 112a generated in step S1003 and stores it in the continuous display head position buffer 1081 (S1004).

  In step S1409, common processing is executed, and electronic data is sequentially displayed from the first screen 112a to the Nth screen 112n.

  Note that the processing in step S1004 may be executed after step S1401.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  By executing the above-described processing in the display device 1 according to the present embodiment, the one-screen feed is executed from the display state shown in FIG. 13A, and the following as shown in FIG. The display of the page is realized.

  That is, in step S1002, a function for jumping to the continuous display head position (specifically, “bright” of the first character) that is the display position of the first screen 112a stored in the continuous display head position buffer 1081 is obtained. Called, layout calculation is executed from that position, and layout information for the first screen 112a (“Fukuoka tomorrow… Hokkaido heaven”) is created. The layout information generated here is the same as the layout information for displaying the current first screen 112a, and is not displayed again at this stage.

  Next, in step S1003, the page feed function is called to perform page feed layout calculation, and the next data ("Tomorrow's Fukuoka ... Hokkaido Ten") generated in step S1002 (" Layout information for the first screen 112a ("Qi is ... rain") is created and displayed on the first screen 112a (FIG. 13B). In step S1004, the display position of the first screen 112a (specifically, “ki” of the first character, etc.) is stored in the continuous display head position buffer 1081.

  Next, in step S1409 of step S1409, the page feed function is called to perform page feed layout calculation, and the layout information on the first screen 112a in FIG. Layout information (“Tomorrow ... weather”) for the second screen 112b from the next data (“Ming”) is created and displayed on the second screen 112b (FIG. 13B).

(One-screen return processing for continuous display)
FIG. 14 is a flowchart showing processing for returning one screen during continuous display in the display device 1 according to the present embodiment. “Return to one screen” means that the data before the first screen (first screen 112a) (one screen) of the electronic data currently displayed is displayed, and the display of each screen is shifted forward by one screen. Refers to that. The processing shown in the flowchart of FIG. 14 is also realized by the CPU of the display device 1 (not shown) reading and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 14, the display control unit 110 sets the display destination screen as the top screen (first screen 112a), and the screen attribute of the first screen 112a is passed to the layout calculation unit 104 (S1101).

  Next, the layout calculation unit 104 acquires the continuous display head position (currently the head of the layout of the first screen 112a) stored in the continuous display head position buffer 1081, and from that position, the step S1101 is performed. The layout is calculated again based on the screen attributes of the first screen 112a passed in (1), and the layout information for the first screen 112a is generated (step S1102). The generated layout information for the first screen 112 a is stored in the layout information buffer 105.

  Next, the layout calculation unit 104 performs page return layout calculation using the layout information (for the first screen 112a) currently stored in the layout information buffer 105 (S1103), and generates the generated layout information. Is stored in the layout information buffer 105. That is, the layout calculation for the first screen 112a is performed using the screen attributes of the first screen 112a from the data one before the data displayed at the top of the first screen 112a to the data before the first screen 112a. The generated layout information is stored in the layout information buffer 105.

  Next, the display control unit 110 acquires the display position of the screen from the layout information for the first screen 112a generated in step S1103 and stores it in the continuous display head position buffer 1081 (S1104).

  In step S1409, common processing is executed, and electronic data is sequentially displayed from the first screen 112a to the Nth screen 112n.

  Note that the processing in step S1104 may be executed after step S1401.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  When the above process is executed in the display device 1 according to the present embodiment, the screen returns from the display state shown in FIG. 15A, and the next display as shown in FIG. The display of the page is realized.

  That is, in step S1102, a function for jumping to the continuous display head position (specifically, “bright” of the first character) that is the display position of the first screen 112a stored in the continuous display head position buffer 1081 is obtained. Called, layout calculation is executed from that position, and layout information for the first screen 112a (“Fukuoka tomorrow… Hokkaido heaven”) is created. The layout information generated here is the same as the layout information for displaying the current first screen 112a, and is not displayed again at this stage.

  Next, in step S1103, the page return function is called to perform page return layout calculation, and the previous data from the layout information ("Tomorrow's Fukuoka ... Hokkaido Ten") generated in step S1102 above. (".") To the data before the first screen 112a, the layout information for the first screen 112a ("Su ... cloudy") is created and displayed on the first screen 112a (see FIG. 15 (B)). In step S1104, the display position of the first screen 112a (specifically, “S” of the first character) is stored in the continuous display head position buffer 1081.

  Next, in step S1409 of the above step S1409, the page feed function is called to perform page feed layout calculation, and the layout information of the first screen 112a in FIG. From the next data (“Akira”), the layout information for the second screen 112b (“Tomorrow... Sky”) is created and displayed on the second screen 112b (FIG. 15B).

(Single line feed processing for continuous display)
FIG. 16 is a flowchart showing a process for causing the display device 1 according to the present embodiment to feed lines during continuous display. “Line feed” means that the current electronic data is displayed from the first line of data on the first screen (first screen 112a) and the display on each screen is shifted forward by one line. Point to. The processing shown in the flowchart of FIG. 16 is also realized by the CPU of the display device 1 (not shown) reading out and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 16, the display control unit 110 sets the display destination screen as the top screen (first screen 112a), and the screen attribute of the first screen 112a is passed to the layout calculation unit 104 (S1201).

  Next, the layout calculation unit 104 obtains the continuous display head position (currently the head of the layout of the first screen 112a) stored in the continuous display head position buffer 1081, and from that position, step S1201 is obtained. The layout is calculated again based on the screen attributes of the first screen 112a passed in step S1202, and layout information for the first screen 112a is generated (step S1202). The generated layout information for the first screen 112 a is stored in the layout information buffer 105.

  Next, the layout calculation unit 104 performs line feed layout calculation using the layout information (for the first screen 112a) currently stored in the layout information buffer 105 (S1203), and generates the generated layout information. Is stored in the layout information buffer 105. That is, layout calculation for the first screen 112a is performed from the data displayed at the top of the second line of the first screen 112a using the screen attributes of the first screen 112a, and the generated layout information is the layout information. It is stored in the buffer 105.

  Next, the display control unit 110 acquires the display position of the screen from the layout information for the first screen 112a generated in step S1203 and stores it in the continuous display head position buffer 1081 (S1204).

  In step S1409, common processing is executed, and electronic data is sequentially displayed from the first screen 112a to the Nth screen 112n.

  Note that the processing in step S1204 may be executed after step S1401.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  By executing the above-described processing in the display device 1 according to the present embodiment, the one-screen feed is executed from the display state shown in FIG. 17A, and the next as shown in FIG. The display of the page is realized.

  That is, in step S1202, a function for jumping to a continuous display head position (specifically, “bright” of the first character) that is the display position of the first screen 112a stored in the continuous display head position buffer 1081 is obtained. Called, layout calculation is executed from that position, and layout information for the first screen 112a (“Fukuoka tomorrow… Hokkaido heaven”) is created. The layout information generated here is the same as the layout information for displaying the current first screen 112a, and is not displayed again at this stage.

  Next, in step S1203, the line feed function is called to perform the line feed layout calculation, and the second line of the layout information ("Tomorrow's Fukuoka ... Hokkaido heaven") generated in step S1202 above. Layout information for the first screen 112a ("is rain" ...) is created from the first data ("ha") and displayed on the first screen 112a (FIG. 17B). In step S1204, the display position of the first screen 112a (specifically, “ha” as the first character) is stored in the continuous display head position buffer 1081.

  Next, the page feed function is called in step S1403 of the above step S1409, and page feed layout calculation is executed. Next to the layout information on the first screen 112a in FIG. The layout information ("Tomorrow ... Weather") for the second screen 112b from the data ("Ming") is created and displayed on the second screen 112b (FIG. 17B).

(Return processing for one line for continuous display)
FIG. 18 is a flowchart showing a process for returning a line during continuous display in the display device 1 according to the present embodiment. “Return to line” means to display the current electronic data from the data of one line before the first screen (first screen 112a) and shift the display of each screen to the previous screen. Point to. The processing shown in the flowchart of FIG. 18 is also realized by the CPU of the display device 1 (not shown) reading out and executing a program stored in the storage device and controlling each unit shown in FIG.

  Referring to FIG. 18, the display control unit 110 sets the display destination screen as the top screen (first screen 112a), and the screen attribute of the first screen 112a is passed to the layout calculation unit 104 (S1301).

  Next, the layout calculation unit 104 obtains the continuous display head position (currently the head of the layout of the first screen 112a) stored in the continuous display head position buffer 1081, and from that position, step S1301 is obtained. The layout is calculated again based on the screen attributes of the first screen 112a passed in (1), and the layout information for the first screen 112a is generated (step S1302). The generated layout information for the first screen 112 a is stored in the layout information buffer 105.

  Next, the layout calculation unit 104 performs line return layout calculation using the layout information (for the first screen 112a) currently stored in the layout information buffer 105 (S1303), and generates the generated layout information. Is stored in the layout information buffer 105. That is, the screen attributes of the first screen 112a are changed from the data before one line of the first screen 112a to the data for the first screen 112a from the data before one of the data displayed at the top of the first screen 112a. Thus, the layout calculation for the first screen 112 a is performed, and the generated layout information is stored in the layout information buffer 105.

  Next, the display control unit 110 acquires the display position of the screen from the layout information for the first screen 112a generated in step S1303 and stores it in the continuous display head position buffer 1081 (S1304).

  In step S1409, common processing is executed, and electronic data is sequentially displayed from the first screen 112a to the Nth screen 112n.

  Note that the processing in step S1304 may be executed after step S1401.

  Here, it is assumed that the display apparatus 1 shown in FIG. 1 specifically displays the electronic data of the XML system shown in FIG.

  When the above process is executed in the display device 1 according to the present embodiment, the screen returns from the display state shown in FIG. 19A, and the next display as shown in FIG. The display of the page is realized.

  That is, in step S1302, a function for jumping to the continuous display head position (specifically, “bright” of the first character) that is the display position of the first screen 112a stored in the continuous display head position buffer 1081 is obtained. Called, layout calculation is executed from that position, and layout information for the first screen 112a (“Fukuoka tomorrow… Hokkaido heaven”) is created. The layout information generated here is the same as the layout information for displaying the current first screen 112a, and is not displayed again at this stage.

  Next, in step S1303, the line return function is called to perform line return layout calculation, and one line before the layout information (“Fukuoka tomorrow… Hokkaido heaven”) generated in step S1302 above. From the data ("ha") to the data for the first screen 112a, layout information for the first screen 112a ("is fine ...") is created and displayed on the first screen 112a (FIG. 19). (B)). In step S1304, the display position of the first screen 112a (specifically, “ha” as the first character) is stored in the continuous display head position buffer 1081.

  Next, the page feed function is called in step S1403 of step S1409, and page feed layout calculation is executed. Next to the layout information ("is clear ...") on the first screen 112a in FIG. The layout information for the second screen 112b ("Tomorrow ... Weather") is created from the data ("Ming") and displayed on the second screen 112b (FIG. 19B).

(Process to return from continuous display to each screen individual display mode)
When returning from the continuous display to each screen individual display mode, specifically when returning from the continuous display shown in FIG. 7B to each screen individual display mode shown in FIG. The following processing is executed in the display device 1 according to the embodiment.

  That is, for the screen on which the top of the continuous display is displayed, the display start position is read from the continuous display top position buffer 1081 and the layout calculation for the screen displaying the continuous display content from the specified position is executed. Display image data is created and displayed on the corresponding screen.

  For screens other than the screen that displays the content of the continuous display, the layout calculation from the top position of the saved screen is executed out of the layout information displayed before the continuous display is performed, and the display is performed. Image data is displayed on each screen.

  Specifically, when returning from the continuous display shown in FIG. 7B to each screen individual display mode shown in FIG. 7A, the display of the first screen 112a stored in the continuous display head position buffer 1081 is displayed. A function that jumps to the continuous display start position (specifically, “bright” of the first character, etc.) that is the position is called, and the content is displayed on the screen in the individual screen display mode from that position. Layout calculation is executed using the screen attributes for the two screens 112b, layout information for the second screen 112b ("Fukuoka tomorrow ... Hokkaido's sky") is created and displayed on the second screen 112b.

  On the surface of the first screen 112a, a function that jumps to the display position that is the content displayed before entering the continuous display mode and is stored in the continuous display head position buffer 1081 is called, and the first screen 112a starts from the position. The layout calculation is executed using the screen attributes for the first screen 112a, the layout information for the first screen 112a is created, and displayed on the first screen 112a.

  In the above display process, the top of the data is displayed on the top screen (first screen 112a), and nothing is displayed on the screen after the screen displaying the end of the data. Data related to the screen displaying the top of the data is saved together with the top of the data as the data indicating the display position in the continuous display top position buffer 1081, so that data is displayed on a screen other than the top screen (first screen 112a). The top of the can be displayed. In this case, each display process is as follows.

・ Continuous display page feed processing:
-Continuous display page return processing: Make sure that the processing is not executed.
-One-screen feed processing for continuous display: The head of data is displayed from the screen before the screen displaying the head of the current data, and the subsequent screens are sequentially displayed by executing the common processing of step S1409. ,
-One-screen return processing for continuous display: The head of data is displayed from the screen next to the screen displaying the head of the current data, and the subsequent screens are sequentially displayed by executing the common processing of step S1409. ,
・ Continuous display line feed processing: Even if an attempt is made to advance the line when the top of the data is being displayed, if the engine that draws one screen does not allow a blank line at the top of the screen, the line cannot be advanced. As an alternative to the one-screen display process for display,
-Continuous display line return processing: Similar to the continuous display line feed processing, the continuous display one-screen return processing is executed as an alternative.

  By executing the above display processing in the display device 1 according to the present embodiment, the display position of the top screen (first screen 112a) is stored, and the display destination is distributed to draw one screen. N pieces of layout information necessary for performing drawing processing for N screens using the engine can be created one screen at a time. Therefore, the memory of the display device can be reduced. In addition, since drawing is performed screen by screen using an engine that renders one screen, characters can be displayed on a plurality of screens without cutting off at the screen edge without requiring a new drawing process.

  Furthermore, the display method executed by the above-described display device can be provided as a program. Such a program is recorded on a computer-readable recording medium such as a flexible disk attached to the computer, a CD-ROM (Compact Disc-Read Only Memory), a ROM, a RAM, and a memory card, and provided as a program product. You can also. Alternatively, the program can be provided by being recorded on a recording medium such as a hard disk built in the computer. A program can also be provided by downloading via a network.

  The provided program product is installed in a program storage unit such as a hard disk and executed. The program product includes the program itself and a recording medium on which the program is recorded.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure which shows the specific example of the display apparatus 1 concerning this Embodiment. It is a block diagram which shows the specific example of a function structure of the display apparatus 1 concerning this Embodiment. It is a figure explaining the outline | summary of the display process in the display apparatus 1 concerning this Embodiment. 4 is a flowchart showing a process of switching from a mode in which electronic data is individually displayed on each screen 112 to a continuous display in the display device 1 according to the present embodiment. In the display apparatus 1 concerning this Embodiment, it is a flowchart which shows a common process among the processes which switch from the mode which displayed the electronic data separately on each screen 112 to a continuous display. It is a figure which shows the specific example of the electronic data of an XML system. It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. It is a flowchart which shows the page feed process for continuous display in the display apparatus 1 concerning this Embodiment. It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. It is a flowchart which shows the page return process for continuous displays in the display apparatus 1 concerning this Embodiment. It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. It is a flowchart which shows the 1 screen feed process for continuous displays in the display apparatus 1 concerning this Embodiment. It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. It is a flowchart which shows the 1 screen return process for continuous displays in the display apparatus 1 concerning this Embodiment. It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. It is a flowchart which shows the 1 line feed process for continuous displays in the display apparatus 1 concerning this Embodiment. It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. One-line return processing for continuous display in the display device 1 according to the present embodiment It is a figure which shows the specific example of the display with the display apparatus 1 concerning this Embodiment. It is a figure explaining the process which displays the document from which a layout changes dynamically in a display apparatus. It is a figure explaining the process which displays N screen using the engine which draws 1 screen. FIG. 10 is a diagram illustrating a specific example in which characters are cut and displayed between screens when one display image data is divided into N and displayed.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Display apparatus, 10 1st display part, 20 2nd display part, 101 Electronic data, 102 Data input part, 103 Data structure analysis part, 104 Layout calculation part, 105 Layout information buffer, 106 Display image data creation part, 107 Display First selection unit, 108 display position storage unit, 109 user instruction processing unit, 110 display control unit, 111, 111a to 111n screen display memory, 112, 112a to 112n screen, 1081 continuous display head position buffer.

Claims (15)

A display device having a plurality of N screens from a first screen to an Nth screen for displaying electronic data composed of continuous objects ,
The display device is a display device that arranges the continuous objects in a row direction on each screen according to the continuous direction, and performs continuous display in the screen order from the first screen to the Nth screen,
Continuous display position storage means for storing head position information, which is information indicating a position on the electronic data of an object to be the head of the continuous display;
By calculating the layout from the object represented by the head position information before Symbol electronic data on the basis of the first screen to the screen attributes of each screen of the first N screen, each of the first N screen from the first screen Layout calculation means for acquiring layout information corresponding to
Layout information storage means for storing the layout information;
Display means for displaying on the display destination selected from the first screen to the Nth screen based on layout information calculated based on the screen attributes of the screen that is the selected display destination ;
The layout calculation means includes
Based on the attribute information of the first screen, the first layout information is calculated from the object indicated by the head position information stored in the continuous display position storage means, and the first layout information is calculated as the layout information storage means. Save to
As a process of calculating the layout of the Nth screen from the second screen, the current screen stored in the layout information storage means is the last screen according to the layout information of the previous screen which is the screen adjacent to the screen in the reverse order. The layout information is obtained by calculating the layout based on the screen attribute of the previous screen in the continuous direction from the object adjacent to the continuous direction of the object arranged on the screen, and calculated based on the screen attribute of the previous screen. to the layout information obtained Te, that perform recalculation and the processing for acquiring layout information of the current screen layout based on the screen attributes of the current screen, the display device. An input means for accepting an operation input for instructing update of the display of the electronic data;
The continuous display head position storage means receives an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to the next page, and thereby at the end of the Nth screen . the information indicating the position on the electronic data of the next object in the object of the electronic data to be displayed, and stored as the head position information,
The layout calculation means is configured to perform the N-th to N-th screens based on the screen attributes of the first to N-th screens from the object indicated by the stored head position information of the electronic data. The display device according to claim 1 , wherein each display layout is calculated . An input means for accepting an operation input for instructing update of the display of the electronic data;
The layout calculation means acquires the updated head position information by receiving an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to the previous page. Processing, and processing for calculating a layout from the object at the position on the electronic data indicated by the head position information to the Nth screen in the continuous order,
In the process of acquiring the updated head position information, the object in the position on the electronic data indicated by the head position information before the update is opposite to the continuous direction from an object adjacent to the continuous direction. The N-th screen layout is calculated based on the screen attributes of the N-th screen and the N-th screen layout information is obtained for the N-th screen objects , and then the (N-1) -th screen is used to obtain the N-th screen layout information. Recalculate the layout information based on the screen attributes of the current screen with respect to the layout information of the next screen, which is the screen adjacent to the current screen order in the reverse order of the screen order up to the first screen, According to the layout information, the object for the current screen is displayed in the direction opposite to the continuous direction from the object adjacent to the continuous direction in the direction opposite to the continuous direction. Said that to calculate the layout information based on the screen attributes of the current frame and repeats the process of acquiring layout information of the current screen for-object, it obtains the layout information of the first screen, the layout information of the first screen to the position on the electronic data of an object placed in the top Thus obtained and as the start position information of the updated update the head position information stored in the continuous display beginning position storing means, to claim 1 or 2 The display device described. An input means for accepting an operation input for instructing update of the display of the electronic data;
The continuous display head position storage means gives an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the continuous direction by the first screen. by accepting, saving of objects arranged Therefore the end to the first layout information, the position on the electronic data of the object adjacent the continuous direction as the head position information,
The layout calculation means is configured to perform the N-th to N-th screens based on the screen attributes of the first to N-th screens from the object indicated by the stored head position information of the electronic data. calculating the respective layout of the screen, the display device according to claim 1. An input means for accepting an operation input for instructing update of the display of the electronic data;
The layout calculation means gives an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the direction opposite to the continuous direction for the first screen. by accepting, said first object placed on the layout information depending on the head, said the continuous direction and the object adjacent to the opposite direction of the first screen in the continuing direction opposite to the direction the object of the first screen Calculate the layout based on the screen attributes to obtain the 1 'layout information,
The continuous display beginning position storing means stores the position of the electronic data of objects to be placed depending on the top the first 'layout information as the head position information,
The layout calculation means further includes the first screen from the first screen based on screen attributes of the first screen to the Nth screen from the object indicated by the stored head position information of the electronic data. calculating the respective layout of the N-screen display device according to claim 1. An input means for accepting an operation input for instructing update of the display of the electronic data;
The continuous display head position storage means updates the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the continuous direction by one line in the first screen. by accepting the instruction, and stores the information indicating the position on the electronic data of an object placed in the top of the thus second row in the first layout information as the head position information,
The layout calculation means is configured to perform the N-th to N-th screens based on the screen attributes of the first to N-th screens from the object indicated by the stored head position information of the electronic data. calculating the respective layout of the screen, the display device according to claim 1. An input means for accepting an operation input for instructing update of the display of the electronic data;
The layout calculation means updates the display of the electronic data for one page from the first screen to the Nth screen to a page that is moved in the direction opposite to the continuous direction by one line on the first screen. by accepting the instruction, on the basis of the first screen display attribute of the object that is located at the head depending on the first layout information, the continuous direction opposite than object adjacent the continuous direction opposite The layout is calculated from the object for the first line of the first screen in the direction to obtain the first ′ layout information,
The continuous display beginning position storing means stores the position of the electronic data of objects to be placed depending on the top the first 'layout information as the head position information,
The layout calculation means further includes the first screen from the first screen based on screen attributes of the first screen to the Nth screen from the object indicated by the stored head position information of the electronic data. calculating the respective layout of the N-screen display device according to any one of claims 1 to 6. Arranging the continuous objects of electronic data consisting of continuous objects in a row direction on each screen according to the continuous direction on a display device having a plurality of N screens from the first screen to the Nth screen ; and a program for executing the continuous display on the screen the order of the N screen from the first screen,
The display device includes continuous display position storage means for storing head position information which is information indicating a position on the electronic data of an object to be the head of the continuous display,
By calculating the layout from the object represented by the head position information before Symbol electronic data on the basis of the first screen to the screen attributes of each screen of the first N screen, each of the first N screen from the first screen a layout calculation step of acquiring layout information,
A layout information storing step for storing the layout information ;
The display destination selected from among the N screen before Symbol first screen, and a display step of performing display based on the calculated layout information based on the screen display attribute of a said selected display destination the Let the display run ,
The layout calculation step includes:
Calculating first layout information from an object indicated by the head position information stored in the continuous display position storage means based on the attribute information of the first screen;
As a process of calculating the layout of the Nth screen from the second screen, the current screen stored in the layout information storage means is the last screen according to the layout information of the previous screen which is the screen adjacent to the screen in the reverse order. Obtaining layout information by calculating a layout based on a screen attribute of the previous screen in the continuous direction from an object adjacent to the continuous direction of the object placed in
Recalculating the layout based on the screen attributes of the current screen to obtain the layout information of the current screen with respect to the layout information obtained based on the screen attributes of the previous screen. , Display program. When an operation input for updating the display of the electronic data for one page from the first screen to the Nth screen to the next page is received, the head position information stored in the continuous display head position storage means is , Causing the display device to further execute a step of updating information indicating a position on the electronic data of an object next to the electronic data object displayed at the end of the Nth screen ,
In the layout calculation step, from the first screen to the Nth screen based on screen attributes of the screens from the first screen to the Nth screen from the object indicated by the stored head position information of the electronic data. The display program according to claim 8 , wherein the layout of each screen is calculated . The layout calculation step includes
Acquiring the updated head position information by receiving an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to the previous page ;
Calculating a layout from an object located in a position on the electronic data indicated in the head position information to said N-th screen to said continuous sequence includes,
In the process of acquiring the updated head position information, the object in the position on the electronic data indicated by the head position information before the update is opposite to the continuous direction from an object adjacent to the continuous direction. The N-th screen layout is calculated based on the screen attributes of the N-th screen and the N-th screen layout information is obtained for the N-th screen objects , and then the (N-1) -th screen is used to obtain the N-th screen layout information. Recalculate the layout information based on the screen attributes of the current screen with respect to the layout information of the next screen, which is the screen adjacent to the current screen order in the reverse order of the screen order up to the first screen, According to the layout information, the object for the current screen is displayed in the direction opposite to the continuous direction from the object adjacent to the continuous direction in the direction opposite to the continuous direction. Said that to calculate the layout information based on the screen attributes of the current frame and repeats the process of acquiring layout information of the current screen, acquires layout information of the first screen for-object,
The step of updating the head position information stored in the continuous display head position storage means to information indicating the position on the electronic data of the object arranged at the head according to the layout information of the first screen. Ru is executed, the display program according to claim 8 or 9. By receiving an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the continuous direction by the first screen, the continuous display head position said head position information stored in the storage means, of objects arranged in thus ending the first layout information, further updating the information indicating the position on the electronic data of the object adjacent the continuous direction the display device to Ru is executed, the display program according to claim 8. In the layout calculation step, an instruction for updating the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the direction opposite to the continuous direction by the first screen. by accepting, said first object placed on the layout information depending on the head, said the continuous direction and the object adjacent to the opposite direction of the first screen in the continuing direction opposite to the direction the object of the first screen Calculate the layout based on the screen attributes to obtain the 1 'layout information,
Said head position information stored in the continuous display beginning position storing means, said first 'further said display device updating the information indicating the position on the electronic data of objects to be placed depending on the top layout information Ru is executed, the display program according to any of claims 8-11. By receiving an instruction to update the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the continuous direction by one line in the first screen, the continuous said head position information stored in the display head position means, further wherein the display updating of information indicating the position on the electronic data of an object placed in the top of the thus second row in the first layout information Let the device run,
In the layout calculation step, from the first screen to the Nth screen based on screen attributes of the screens from the first screen to the Nth screen from the object indicated by the stored head position information of the electronic data. The display program according to claim 8 , wherein the layout of each screen is calculated . In the layout calculation step, to update the display of the electronic data for one page from the first screen to the Nth screen to a page moved in the direction opposite to the continuous direction by one line on the first screen. by accepting the instruction, on the basis of the first screen display attribute of the object that is located at the head depending on the first layout information, the continuous direction opposite than object adjacent the continuous direction opposite The layout is calculated from the object for the first line of the first screen in the direction to obtain the first ′ layout information,
Said head position information stored in the continuous display head position means, further said display device updating the information indicating the position on the electronic data of objects to be placed depending on the top the first 'layout information Let it run
In the layout calculation step, from the first screen to the N-th screen based on screen attributes of the first screen to the N-th screen from the object indicated by the stored head position information of the electronic data. The display program according to claim 8, wherein each display layout of the Nth screen is calculated . The computer-readable recording medium which records the display program in any one of Claims 8-14 .

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