JPS62116990A - Character train display managing system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a display method for a computer system that performs multi-window control, and in particular, a method for cutting out arbitrary areas of images of multiple character displays and mapping them onto a physical screen. The present invention relates to a character string display management method suitable for displaying text.

[Background of the invention]

Regarding multi-window display control, JP-A-55-1
No. 03635, JP-A-57-216512, etc.

However, the method of storing character string code information was mentioned, and no consideration was given to speeding up display processing due to window movement, deletion, etc.

[Purpose of the invention]

The purpose of this invention is to process character string data in which characters of different sizes such as half-width: full-width, standard: double-width, etc. are mixed.

To provide a display management system for quickly cutting out and displaying and switching arbitrary parts of one character string when displaying a plurality of characters at arbitrary positions on a display screen.

[Summary of the invention]

In order to achieve the above object, the character string display management method according to the present invention uses character code data or the corresponding cell frame/anime in the lattice array of the reference cell frame, even for character strings containing a mixture of characters of different sizes. It has data that indicates the relative positional relationship of the cell frame that holds the code data of the character that is displayed, and the size of the reference cell frame can be specified arbitrarily, so that processing associated with changes in the display range can be performed efficiently. .

[Embodiments of the invention]

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

FIG. 1 is a diagram showing an example of the configuration of a computer system for implementing the present invention. In FIG. 1, 101 is a central processing unit (CPU) that supervises and manages overall processing;
102 is a main storage device referred to by CPUl0I; 103 is a display W (CRT) for displaying various data such as characters and figures; 104 is a device for controlling display information on CRT 103; and 105 is a display on CRT 103. local storage for holding information (local memory)
, 106 is a bitmap data processing bag @ (8MP), 1 for editing and creating display information on the CRT 103.
07 is a control device for connecting the disks 108 and 109, 108 is a floppy disk, 109 is a fixed disk, and 110 is a common data transmission path for exchanging data between the above devices.

FIG. 2 shows the virtual screen data held in the 1050-cal memory in FIG.
FIG. 3 is a diagram showing the relationship between data mapped and displayed on the T screen. Reference numeral 201 represents a virtual screen to which an application program or the like outputs. virtual screen 20i
Above, there are a plurality of character string display areas such as 202 and 203, which have different reference cell frame sizes but whose overall shape is always rectangular. Further, graphic data shown in 204 is also maintained and managed as display data on the same virtual screen. Partial area 20 indicated by a broken line on the virtual screen 201
Only the data in 5 is cut out and displayed as a map within a display window on the physical display screen 206.

At this time, the character string display areas 202 and 203 have a lattice arrangement of reference cell frames of 3 rows and 4 columns and 2 rows and 9 columns, respectively. In this embodiment, one reference cell frame includes:
Displays one half-width character, which is basic character data.

However, in this type of computer system, it is necessary to handle character strings in which various character sizes as shown in FIG. 3 are mixed. In Fig. 3, 301 is a half-width character to be displayed in one of the reference cell frames, and 302 to 308 are two-byte characters to be displayed in one of the reference cell frames.
This indicates double-width or full-width characters that are displayed using 1, 4, or 8 characters. Even when characters such as those shown in 302 to 308 are mixed in a character string, the computer retains data for the number of reference cell frames in the display area within the computer. As a result, as shown in FIG. 2, when cutting out and displaying an arbitrary rectangular area within the virtual screen, only the data necessary for display can be quickly extracted.

FIG. 4 explains a method of holding data in units of reference cell frames. 401 shows the data retention relationship in cell frame units when horizontal writing is displayed and 402 is vertical writing. For example, when displaying half-width vertical double characters written horizontally,
Code data and display attribute data of characters to be displayed are held in a data area corresponding to a cell frame indicated by a 0 mark in 401. Then, in the data area corresponding to the upper cell frame indicated by the arrow, there is code information indicating that the corresponding area is an area covered by vertically multiplying the characters holding code information in the lower cell frame. I will keep only the . With this method, even if full-width single-width characters are mixed inside, if the display area consists of a reference cell frame of n rows x m columns, the data for character string display will always have an area of nXm. As shown in FIG. 2 205 and 207, when only part of the data in the rectangular area is required,
The required area can be easily extracted by only calculating the number of rows with two digits.

FIG. 5 explains the table and data structure for realizing the above-mentioned functions. In general, Fig. 2
On the display screen shown in 06, a plurality of virtual screens as shown in 201 are mapped and displayed in a form that allows them to overlap. The part that manages display output for each virtual screen is called a virtual terminal. The 501 virtual terminal management table collectively manages data regarding each virtual terminal. The same group to which the same group list pointer 501 points to the table 502 of diagram group 1 refers to each of the character string display areas shown at 202 and 203 in FIG. 2 and the graphic output elements shown at 204. . Therefore, the vertical relationship of display needs to be defined, 502, 503
As shown.

The same county table is maintained in a list structure according to the display order. In the example of FIG. 5, the same county 1 is the same county for which the character string is displayed, and the character string data 50 is displayed from the same county 1 table 502.
5 is pointed to by pointer 504. If the same group 1 is a character string of n lines x m digits, even if the characters actually included in the same group 1 include double-width characters and the number of displayed characters is fewer than nXm characters, According to the method described above, code and attribute data of nXmX1 byte are held in the character string data 505. Here, i is the fixed data capacity (bytes) for one reference cell frame. By storing data in this structure, changes in overlap with other display windows on the actual screen, etc.
When using character string data for display, if the required display area is calculated for each row, the display data for that purpose can be calculated as follows:
It can be easily taken out from the table 505.

〔Effect of the invention〕

As explained above, according to the present invention, each application program has a reference cell frame of any size,
When providing multiple character display-like output areas consisting of n lines x m digits, and cutting out and displaying part or all of the corresponding area on the physical display screen, the necessary data is displayed according to the size of the display area. It becomes easy to extract. In particular, even for character strings containing a mixture of full-width characters, 9 double-width characters, etc., the necessary character string data can be extracted from only the 1-column information in the row of the reference cell frame.
Display change processing associated with window movement, deletion, etc. in multi-window display can be performed at high speed.

[Brief explanation of drawings]

Figure 1 is a configuration diagram of a computer system for implementing the present invention, Figure 2 is a diagram explaining display data and the method of mapping it onto the display, and Figure 3 is a diagram of half-width and full-width characters to be displayed.
Figure 4 is a diagram explaining the types and relative sizes of double-width, etc., depending on the type of character, vertical writing, horizontal writing, etc.
An explanatory diagram of how to retain data in each cell frame, Figure 5 is an internal taker 1 Figure//g No Z Figure VJB Figure Hijiri Haya P here 4
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Claims (1)

[Claims] When displaying character strings on a bitmap display, by defining multiple grid rectangles whose size can be specified on a virtual screen that does not depend on the display size, each grid rectangle can be displayed as if it were a separate character display. In computer devices that can display character strings, character codes or character codes are stored in each standard rectangular cell frame, even in the case of character strings that include characters of different sizes, such as full-width characters and double-width characters. A character string display management method is characterized in that by retaining cell frame position data, it is possible to quickly cope with changes in the mapping range when mapping and displaying information on a virtual screen on a physical display screen.