JPS63132281A - Character size enlargement conversion display control method - 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] [Summary] In a character size enlargement conversion display control method for a bitmap display, a character buffer is provided in which display information of each character is stored, and size information of that character is set in each display information. Then, the size of each character is enlarged and converted according to this size information and displayed on the bitmap display. As a result, characters can be displayed in an enlarged manner only from the display information of the character buffer, and characters hidden by the enlarged display can be easily restored from the character buffer and displayed.

[Industrial application field]

The present invention relates to a character size conversion display control method for displaying enlarged font sizes on the display screen of a bitmap display, and in particular, when the font size is enlarged and displayed, characters hidden by the enlarged display are This invention relates to an improved character size enlargement conversion display control method so that display information is not lost.

[Conventional technology]

When displaying characters on a bitmap display, the displayed characters are enlarged and displayed as long characters that are expanded vertically, long characters that are expanded in the Chinese direction, double-width characters that are expanded both vertically and horizontally, etc. This is required.

When enlarging characters in this way and displaying them on a bitmap display, for example, in the two lines of character strings ``Airo'' and ``Along'' shown in Figure 5(A), the lower line ``Long'' ” 2
Conventionally, when enlarging and displaying an image to the length of a character, the following methods have been used to perform the enlarging display.

■ As shown in FIG. 5(B), the character "long" is enlarged and displayed in a long form, leaving the other characters as they are.

In this enlarged display method, by enlarging and displaying long characters, the display information of the characters that had been displayed in the enlarged portion is lost from the bitmap memory.

Therefore, in order to avoid this, enlarged display has been performed using the following method (2).

■ As shown in Figure 5 (C), a blank line is provided between the upper and lower lines, and the display information for the character ``I'' in the upper line is displayed by enlarging the long body of the character ``Sergeant Major''. I'll make sure it doesn't exist.

[Problem that the invention seeks to solve]

Conventionally, as the character size enlargement conversion display control method to enlarge and display the font size on a bitmap display, as mentioned above, there are two methods: ■ A method that enlarges and converts the character to be enlarged while leaving other characters unchanged; ■ Various methods have been used in which a blank line is provided between the line containing the character to be enlarged and the line above it for enlarged display.

Although the process for performing enlarged conversion display is simple in method (2), there is a problem in that the display information of the characters previously displayed in the enlarged portion is lost due to enlarged display. On the other hand, although the method (■) solves the problem of display information of other characters being lost due to enlarged display, it has the disadvantage that a new problem arises in that unnecessary blank spaces are created between lines.

For this reason, enlarged display of characters has not actually been performed on bitmap displays.

The present invention provides an improved character size enlargement conversion display control method that prevents display information of hidden characters from being lost even when characters are enlarged and displayed on a bitmap display. The purpose is to

[Means for solving problems]

The solution taken by the present invention will be explained with reference to FIG. FIG. 1 is a block diagram showing the basic configuration of the present invention.

In Figure 1, 11 is a bitmap display;
A bitmap memory 111 is provided inside, and character patterns developed on the bitmap memory 111 are displayed.

12 is a character buffer, and bitmap display 11
Character information area Ci' (i =
0 to m, j = Q to n), and size information indicating the size of the character is set in the display information of each character information area C1.

Reference numeral 13 denotes a character size conversion means that performs a predetermined character size enlargement process according to the display information in each character information area of the character buffer 12.

[For production]

The operation shown in FIG. 1 will be explained with reference to FIG. 2.

FIG. 2 is an explanatory diagram of the character size enlargement display operation of the present invention.
An example of enlarging and converting the font size to a long font is shown.

In the character buffer 12 of FIG. 2(A), 01 to Cs
is the character information area, and C1 to C3 contain the character "a".

Display information for “i” and “u” is stored, and C4~
It is assumed that the display information of the characters "A", "Cho", and "U" is stored in the CG, and the size information in the display information of the character "Cho" is set to the size information of the long body. In addition,
In the display information, in addition to the text information, for example, character codes, display attributes such as the brightness and color of displayed characters, etc. are set.

The character size converting means 13 sequentially extracts display information for characters from each character information area C, C2, etc. of the character buffer 12, analyzes its contents, and converts it to a predetermined value according to the character code, size information, etc. in the display information. Convert the font size of
The character data is sent to the bitmap display 11.

In the case of FIG. 2, the size information of each character in the character information areas C1 to C3 and C1 does not instruct enlarged display, so the character data extracted by each character code is sent to the bitmap display 11, Memory 111
(FIG. 2(B)).

Since the size information of the character "cho" instructs to display the character "cho" in a long format, the character size conversion means 13 enlarges and converts the character "cho" into a long format, and displays the character data on the bitmap display 1.
Send it to 1 and make a bitmap memo! Store it in Jllll. At this time, the character data of the long character ``long'' is stored in the corresponding character areas C, / and C3/ of the bitmap memo 'IJIII (Fig. 2(C)).

Since the size information of the character "U" in the next character information area C6 does not instruct enlarged display, the character data for "U" is sent as is to the bitmap display 11, and the corresponding character area C6 of the bitmap memory 111 is sent to the bitmap display 11. ' (Fig. 2(D)).

When the above processing is completed, the bitmap display 11 reads character data from the bitmap memory 111 and displays it (FIG. 2(E)).

As a result, the bitmap display 11 displays a desired enlarged character size in which the character "cho" is enlarged to a long character.

In this state, the character area C3' hidden by the enlarged display
If it becomes necessary to restore the character "i", the original character "i" can be easily restored by referring to the character information area C3 of the character buffer 12 and extracting the display information of the character "i". can be displayed.

By doing the above, it is possible to enlarge the character size based on the display information from only the character buffer 12, and the display information of the characters hidden by the enlarged display is saved, and the display information of the characters hidden by the enlarged display is saved. It can be restored and displayed. It should be noted that the character buffer 12 and the character size conversion means 13 do not need to be provided separately from the bitmap display 11, and can be constructed integrally. Furthermore, the size of the enlarged characters, such as long characters and double characters, is not limited to twice that of the original character, but can be enlarged to any integral number.

〔Example〕

Embodiments of the present invention will be described with reference to FIGS. 2 to 4. FIG. 3 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 4 is an explanatory diagram of the enlargement processing operation of the embodiment.

(A) Structure of Embodiment In FIG. 3, the bitmap display 11, character buffer 122, character size conversion means 13, and bitmap memory 111 are the same as described in FIG.

In the bitmap display 11, 112 is a display control unit that stores character data in the bitmap memory 111, takes out character data from the bitmap memory 111, converts it into a serial video signal for display, and displays it on the display 113. Take control.

In the character size conversion means 13, a character generator 131 generates character data of a character pattern corresponding to a character code. A working memory 132 stores intermediate results in character enlargement conversion processing.

A conversion processing unit 133 performs conversion processing of the character size based on the display information of each character.

(B) Operation of the embodiment The operation of the embodiment will be explained by referring to the enlargement processing operation explanatory diagram in FIG. explain.

(B-1) Long display operation Display information for each character is transferred from a host (not shown) to the character buffer 12 and stored in a character information area at a predetermined address. Now, as shown in Figure 2, character buffer 1
Characters “a”, “i” and “in the character information area 01 to C3 of 2
The display information for "U" is stored in C1 to C6, and the character "A" is stored in C1 to C6.
It is assumed that the display information for ``cho'' and ``u'' is stored, and size information for displaying the character ``cho'' in an enlarged form is set.

The conversion processing unit 133 converts the character buffer 120 character information area C
2, the display information of the character "a" is extracted and its contents, that is, the character code, display attributes, and size information are analyzed. In the case of FIG. 2, the size information of the display information of the character "A" in the character information area C1 does not instruct enlarged display. Therefore, the conversion processing unit 133 inputs the character information area C1 into the character generator 131.
The character code of the character "a" is sent, and the character data of the character "a" is extracted and sent to the bitmap display 11.

The display control unit 112 of the bitmap display 11
The transferred character data is stored in the corresponding character area CI' in the bitmap memory 111 (Fig. 2 (B)).
. Thereafter, in the same way, character information area 0 of character buffer 12
The character data of the characters “i”, “u” and “a” from 2 to C1 are stored in the character area C2 corresponding to the bitmap memory 1110.
/~Ca' (FIG. 2(B)).

Next, the character sergeant in character information area C3 of character buffer 12.
Since the size information instructs long text display, the conversion processing unit 133 converts the character data of the character "long" extracted from the character generator 131 into a predetermined work area W of the work memory 132.
It is stored in A 1 ((a) in FIG. 4 (8)). In FIG. 4(A), 0 to p in the vertical direction of the work area WΔ1 represent the dot numbers of each row of the work area WA.

The conversion processing unit 13 reads the character data of each row dot number of the work area W A + twice and stores it in the work memory 1.
32 other work areas WA2 (see Fig. 4 (A)).
> (b)). As a result, it is possible to create a long character "cho" in which the character "cho" is enlarged twice in the vertical direction.

Note that long characters can be created by various known methods in addition to the method described above. The conversion processing unit 13 reads the character data of the long character "long" in the work area WA2 and transfers it to the bitmap display 11.

The display control unit 112 of the bitmap display 11
The transferred character data is stored in the corresponding character areas C, / and C, / of the bitmap memory 111 (see FIG.
C)).

Since the size information of the character "U" in the next character information area C6 does not instruct enlargement display, the character data of "U" is displayed in bits as is, as in the case of the character "A" in the character information area C1 described above. It is sent to the map display 11 and stored in the corresponding character area C6' of the bitmap memory 111 (FIG. 2(D)).

When the above processing is complete, the display control unit 112 sequentially retrieves the character data stored in the bitmap memory 111, converts it into a serial video signal for display, and sends it to the display.
3 (Fig. 2(e)).

(B-2) Double-width display operation The operations other than the operation of creating double-width characters in the working memory 132 are the same as the long-width display operation of (B-1).
The double-width character creation operation will be mainly explained with reference to FIG. 4(B).

The character data of the character "long" in the character information area C3 of the character buffer 12 is taken out from the character generator 131 and stored in the work area W A + of the work memory 1320 ((a) in FIG. 4(B)). .

When the conversion processing unit 133 reads the character data of each line of the work area WΔ1 and writes it to the other work area W A 3, the conversion processing unit 133 writes each dot twice,
Create a car body character "cho" which is twice the width of the character "cho" stored in A 1 (Fig. 4 (B)).
).

Next, the conversion processing unit 133 performs a long character creation process similar to the above-mentioned item (B-1) for this car body character "long", so that both the vertical and horizontal directions are 2 in the work area W A 3. A double-width character “cho” is created (fourth
Figures (B) and (C)).

The character data of the double-width character "long" in the work area WA is read out, stored in the corresponding character area C2, Cs + Cs' + Ca' of the video map memory 111, and then displayed on the display 113. .

By doing the above, it is possible to perform enlarged display such as long-length display or double-width display of any character based on the display information of the character buffer, and by referring to the character buffer, it is possible to enlarge the display of any character by referring to the character buffer. characters can be easily restored.

Note that double-width characters can be created by various known methods in addition to the method described above.

Although one embodiment of the present invention has been described above, each structure of the present invention is not limited to each structure of the embodiment. For example, the character buffer 12 and the character size conversion means 13 can be configured integrally with the bitmap display 11. In that case, working memory 132 may be provided within bitmap memory 111.

Further, as already mentioned, enlarged display such as long-angle display and double-angle display is not limited to double enlarged display, and may be enlarged by any integral number.

〔Effect of the invention〕

As explained above, according to the present invention, the following effects can be obtained.

(b) Character size can be enlarged and displayed based on display information from only the character buffer.

(D) The display information of characters hidden by the enlarged display is saved and can be restored and displayed if necessary.

[Brief explanation of the drawing]

Fig. 1...Explanatory diagram of the basic configuration of the present invention, Fig. 2...
An explanatory diagram of the character size enlargement display operation of the present invention. Fig. 3... An explanatory diagram of the configuration of an embodiment of the present invention. Fig. 4... An explanatory diagram of the character size enlargement processing operation of the same embodiment. Figure 5: An explanatory diagram of a conventional character size enlargement conversion display method. 1 and 2, 11...Bit map display, 12...Character buffer, 13...Character size conversion means.

Claims (1)

[Claims] In a character size enlargement conversion display control method for displaying an enlarged character size on the display screen of a bitmap display (11), (a) a character display portion on the display screen of the bitmap display (11); A character buffer (12 ), and (b) a character size converting means (13) for enlarging and converting each character size according to the size information of display information in each character information area of the character buffer (12). Enlarged conversion display control method.