JPH05289841A - Document display controller - Google Patents

Abstract

PURPOSE:To easily proofread a document consisting of plural pages and to easily retrieve desired data from this document. CONSTITUTION:A current page discrimination management device 21 discriminates a current page to be displayed and processed based on control information for display. A display page number discriminating device 25 uses a data reader 23 to read in data from the current page to a required page from a document data file 1, and a document information acquiring device 24 is used to take out document information from this data. A data processor 26 for picture division and display calculates a reduction or enlargement rate in accordance with longitudinal and lateral sizes of a picture divided into a preliminareily set prescribed number and taken-out document information and reduces or enlarges the picture based on the calculated reduction or enlargement rate to display the picture.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a document display control device, and more particularly to D
The present invention relates to a document display method for displaying the contents of a document in a TP (desk top publishing) system or the like.

[0002]

2. Description of the Related Art Layout software is generally called DTP. This software does not focus on creating documents by inputting characters with a keyboard like word processing software, but imports the data of other software (software such as word processing, tables, figures, images) and uses that data. It is software that creates a document by locating and cutting.

Generally, one page is the target of screen display. Conventionally, there is a display method as to how to display that one page (such as enlarged display of an arbitrary portion of one page or display of a percentage of one page), but a document display that displays multiple pages on one screen. There is no method.

In the above-described conventional screen display, since the display target is one page, if the number of pages in one document is large,
Or if you want to see the performance and flow of one document,
If the document has 10 pages, 10 pages must be displayed one by one one after another, which is very troublesome. Also, when searching for desired data from one document having a large number of pages, there is a problem that it is very troublesome as in the above-described processing.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned problems of the prior art, and facilitates proofreading of a document consisting of a plurality of pages and retrieval of desired data from the document. An object of the present invention is to provide a document display control device that can be used.

[0006]

A document display control apparatus according to the present invention comprises a detecting means for detecting a page currently being displayed on a display screen from page information given to each page of a document, and a current detecting means for detecting the current page. Reading means for sequentially reading the data of the next page based on the page, and determining whether the data of the current page and the data read by the reading means can be displayed on the display screen divided into a plurality of screens in advance And a scaling means for scaling the data of the current page and the data read by the reading means to a size substantially the same as the size of the split screen of the display screen when the determination means determines that the data can be displayed. And a display unit for displaying the data scaled up and down by the scaling unit on each of the divided screens.

[0007]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, various kinds of document data are stored in the document data file 1, and these document data are read from the document data file 1 by the full-screen display device 2 and displayed on the CRT device 3.

In the full-screen display device 2, when simultaneously displaying document data of a plurality of pages on the CRT device 3, the current page determination management device 21 recognizes the page to be processed. After that, the CRT is performed by the screen clearing device 22.
Clear the display on the screen of the device 3. When the display on the screen is cleared, the data reading device 23 reads the data from the document data file 1, and the information of the document necessary for displaying from the read data (the paper size such as A4 and B4 and the vertical and horizontal directions of the paper). Etc.) to the document information acquisition device 24
Take out by.

The display page number determination device 25 determines whether the number of pages of the displayed document is within a preset number of pages that can be displayed on one screen. When the display page number determination device 25 determines that the display page number is within the displayable page number, the data reading device 2
The data read by 3 and the document information are passed to the screen division display data processing device 26.

The screen split display data processing device 26 enlarges or reduces the transferred data to display the data on the split screens of the CRT device 3 which are divided into a predetermined number in advance. It is output to the CRT device 3 via the display and displayed on each divided screen. The screen of the CRT device 3 can be divided into a preset number of divided screens, and the origin coordinates of each divided screen and the vertical and horizontal sizes of the divided screens are held. This predetermined number is the maximum number of pages that can be simultaneously displayed on one screen, and is predetermined for each device.

FIG. 2 is a flow chart showing the operation of one embodiment of the present invention. The operation of the embodiment of the present invention will be described with reference to FIGS. Hereinafter, a case where the screen of the CRT device 3 is divided into three will be described.

When a plurality of pages are simultaneously displayed on the screen of the CRT device 3, first the current page determination management device 2
The current page to be displayed and processed by, that is, the page serving as the reference of the display is determined based on the display control information of the data currently displayed (step 101 in FIG. 2).
). The display control information includes page information of the data currently displayed on the screen, and the page information is also updated every time the screen is switched.

When the current page determination management device 21 determines the current page, the display control information of the data currently displayed is initialized (step 102 in FIG. 2), and the page display memory and the management table are initialized. (FIG. 2, step 103). Further, the screen of the CRT device 3 in which the data is currently displayed is cleared by the screen clearing device 22 (step 104 in FIG. 2). By this, CR
The initialization process for the screen of the T device 3 is completed.

Next, the data of the page determined to be the current page is read from the document data file 1 by the data reading device 23 (step 105 in FIG. 2), and the document information is taken out from the data by the document information acquisition device 24 (FIG. 2). Step 106). The display page number determination device 25 takes out the maximum number of pages that can be displayed on one screen (three pages in this case), and controls the data reading device 23 so that the data of the required page is read within this maximum number of pages.

That is, the display page number judging device 25 judges whether all the data read by the data reading device 23 can be displayed on one screen (step in FIG. 2).
107). When it is determined that all the data can be displayed on one screen, that is, the maximum number of pages to display (3 pages)
If it is determined that the display type is within the range, the display page number determination device 25 determines whether the display type is a display of a plurality of pages (FIG. 2).
Step 108).

If the display type is the display of a plurality of pages,
The display page number determination device 25 determines whether or not the page of the read data is the last page (step 109 in FIG. 2). If it is not the final page, the display page number determination device 25 uses the data reading device 23 to read the data of the next page (step 110 in FIG. 2) and uses the document information acquisition device 24 to extract the document information from the data (see FIG. 2). 2 step 111).
After that, the display page number determination device 25 returns to the determination processing in step 107 and performs the same processing as described above on the data.

By the above processing, when the display page number determination device 25 determines that it cannot display on one screen, or when it determines that the display type is not display of a plurality of pages,
Alternatively, when it is determined that the page is the final page, that is, when the loop of the data reading process is exited, the screen split display data processing device 26 prepares for document display.

The screen split display data processing device 26 uses the display control information to determine the vertical and horizontal sizes of the screen display portion of the screen during the split screen display, and the coordinates of the origin of each displayed page. (Step 112 in FIG. 2)
). The screen division display data processing device 26 obtains the reduction rate or the enlargement rate of the data in order to store the data in the divided screens (step 113 in FIG. 2). To determine the reduction ratio or enlargement ratio, use the vertical size of the format sheet of the displayed page as the denominator, and the vertical size of the page display area as the numerator, and the horizontal size of the format sheet of the displayed page. Is used as the denominator, and the horizontal size of the portion displaying the screen page is used as the numerator, and the smaller value is used as the reduction rate or the enlargement rate. When the reduction rate or the enlargement rate is calculated, the screen split display data processing device 26 is set to 1 at the reduction rate or the enlargement rate.
The data is reduced or expanded for each page of data (step 114 in FIG. 2).

The screen division display data processing device 26 outputs the reduced or enlarged data to the CRT device 3 via the page display device 27 (step 115 in FIG. 2), and the data is displayed on each of the divided screens of the CRT device 3. indicate. Where C
In the case of displaying a plurality of pages on the RT device 3, if the last page is reached before the data for the maximum number of pages is read, for example, when the data for two pages is read when the maximum number of pages is three. When the final page is reached, data is displayed on two of the three divided screens, and no data is displayed on the remaining screens.

In this way, the screen of the CRT device 3 can be divided into a plurality of divided screens in advance, and the data within the maximum number of pages that can be displayed on the divided screens is divided into screens of approximately the same size as the divided screens. By reducing or enlarging the data to be displayed by the display data processing device 26, it is possible to easily proofread a document including a plurality of pages and search for desired data from the document.

Although one example of dividing the screen of the CRT device 3 has been described in the embodiment of the present invention, it is obvious that the present invention can be applied to a case where there are plural types of dividing examples, and the present invention is not limited to this. Not done. In this case, the origin coordinates of each divided screen and the vertical and horizontal sizes of the screen may be stored for each divided example, and those values may be selected according to the number of divisions.

[0023]

As described above, according to the present invention, a page currently being displayed is detected and used as a reference page, and from the reference page, pages that can be displayed on a screen divided into a predetermined number are sequentially read out. Proofing a document consisting of multiple pages and searching for the desired data from the document by enlarging and reducing the data so that the size of the data is approximately the same as the size of the divided screen. There is an effect that can be easily performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the embodiment of the present invention.

[Explanation of symbols]

 1 Document Data File 2 Full Screen Display Device 3 CRT Device 21 Current Page Judgment Management Device 23 Data Reading Device 24 Document Information Acquisition Device 25 Displayed Page Number Judgment Device 26 Screen Division Display Data Processing Device 27 Page Display Device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yumiko Kaneko 4-4-2 Bandai 4-chome, Niigata City, Niigata Prefecture Niigata Nippon Electric Software Co., Ltd.

Claims (1)

[Claims] 1. A detecting means for detecting a page currently being displayed on a display screen from page information given to each page of a document, and data for the next page sequentially based on the current page detected by the detecting means. A reading means for reading, a judging means for judging whether or not the data of the current page and the data read by the reading means can be displayed on the display screen divided into a plurality of screens in advance, and by the judging means. Enlarging / reducing means for enlarging / reducing each of the data of the current page and the data read by the reading means to a size substantially the same as the size of the divided screen of the display screen when it is determined to be displayable; And a display means for displaying the data scaled up and down by the means on each of the divided screens.