JPH10187136A - Document processing device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable displaying a document being free from unnatural feeling by scrolling a display screen in the left or right direction with movement amount decided based on lateral width of an adjacent character when an adjacent character is placed at a position exceeding a left frame or a right frame of a display screen. SOLUTION: For example, when a cursor 72 is positioned at the right most end of a display screen and a joystick is operated to display characters of a right side deviated from a screen 71, a CPU detects a character pitch L from a position of the cursor 72 to the characters of the right side (it is decided by a kind of character at which the cursor 72 is positioned), and character width W of a right-adjacent character to be displayed is detected. Next, a value subtracted by character width of a character at which the cursor 72 is positioned from the sum of obtained L and W is made a left-scrolled value. Left-scroll is performed based on quantity obtained by this calculation. Thus, as scroll-display is performed based on size of characters, a document being free from unnatural feeling can be displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a document processing apparatus and method, and more particularly to a document processing apparatus and method for editing and creating a document.

[0002]

2. Description of the Related Art Character types that can be used during editing in recent document processing apparatuses include double-width characters, double-width characters, double-width characters, and double-width characters, including full-width characters.

Normally, these characters are generated by expanding one dot in the pattern into two dots vertically or horizontally based on a full-width character pattern. Therefore,
For example, when a double-width character is input on the document editing screen, two character input frames on the display screen are occupied.

[0004] By the way, currently, a frame corresponding to one page (hereinafter referred to as a page frame) is mainly displayed on a display screen. The size of the frame is often based on the number of rows and the number of columns set in the initial setting process, and may naturally be set to a size exceeding the display screen. In particular, this is often the case when the display screen itself is about 40 × 20 characters.

Therefore, in order to operate correction of a document out of the display screen, it is necessary to display a portion to be corrected. At this time, scrolling is often used.

[0006]

However, the following problems occur when attempting to scroll and display a document in which characters such as the above-described characters such as vertical or horizontal double-width characters and full-width characters are mixed.

FIG. 14A is a diagram conceptually showing the relationship between the document information 100 and the display area 101 of the display screen.
This shows a state in which a character string composed of double-width characters and full-width characters exists at a position off the display screen.

Now, suppose that when the cursor 102 is at the position shown in the figure (at the bottom of the display screen), a key for moving the cursor downward provided on a keyboard or the like is pressed in order to see the line below it. Then, since the conventional scroll uses the size of full-width characters as a unit, a display screen 103 as shown in FIG. 14B is displayed.

This does not satisfy the operator's intention to "see the next line".

This problem does not occur only in vertical scrolling. That is, although the description is omitted,
A similar problem occurs in horizontal scrolling of a document in which double-width characters are mixed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a document processing apparatus and a document processing method capable of scrolling a document to meet a user's request with a simple operation.

[0012]

To solve this problem, for example, a document processing apparatus of the present invention has the following arrangement. That is, a document processing apparatus configured of a plurality of lines and displaying or editing or creating a document in which characters of a plurality of sizes are mixed in one line on a display screen, wherein at least desired characters displayed on the display screen Character designation means displayed to designate the position of the character, movement instruction means for instructing the character designation means to move to the left or right, and the movement instruction means to move the character designation means to the next character When moving, when the adjacent character is located beyond the left or right frame of the display screen, the display screen is scrolled left or right by a movement amount based on the width of the adjacent character. Scroll means.

[0013]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

<Description of Schematic Configuration of Apparatus (FIG. 1)> FIG. 1 shows a schematic configuration of a document processing apparatus in the embodiment.

In FIG. 1, reference numeral 1 denotes a CPU for controlling the entire apparatus, which operates according to a program stored in a program area 2a in the memory 2. The program area 2a stores programs relating to the flowcharts of FIGS. Also, memory 2
In the document area 2b, the document information being edited is expanded. Reference numeral 3 denotes a VRAM. The image data developed here is displayed on a CRT 4 which is one of display devices.
Reference numeral 5 denotes a character pattern generator capable of generating a plurality of types of character patterns, and is used, for example, when developing a character pattern corresponding to a character code in the document area 2b in the VRAM 3. This character pattern generator 5
Generates full-width characters, 1.5 times the size of double-width characters, and the like (which can be achieved if the character pattern is held in advance). Reference numeral 6 denotes a transparent pressure-sensitive touch panel located on the front of the display screen of the CRT 4. Position information touched by an operator's fingertip is taken into the CPU 1. Reference numeral 7 denotes a keyboard for inputting various types of information, and includes a keyboard 7a. Reference numeral 8 denotes an external storage unit (for example, a magnetic disk device) capable of storing a plurality of pieces of document information. Reference numeral 9 denotes a printing unit.

<Explanation of Document Editing Process (FIGS. 2 and 3)> First, an outline of the process of the document processing apparatus in the embodiment will be described. The input of various information in the embodiment is selected by designating a surface on the touch panel 6 corresponding to various icons displayed on the display screen of the CRT 4 with a finger or the like in addition to the keyboard 7. Also, “…” in the following explanation
The “button” is an icon corresponding to various processes displayed on the display screen, and the operation of touching the position of the touch panel 6 corresponding to the button is simply referred to as “touch”.

When the power is turned on and a menu related to document creation is selected, an area for displaying a plurality of lines of documents related to document creation is secured on the display screen of the CRT 4 in step S1. Various operation buttons are displayed.

In step S2, it is determined whether or not the editing end button has been touched. This judgment is “YES”
In this case, the editing process ends, and the process returns to the process before entering this series of flowcharts.

If it is determined in step S3 that there is a character input from the keyboard 7, the process proceeds to step S4 to execute a process of incorporating a kana-kanji converted kana-mixed sentence into the editing screen. At this time, the character pattern is developed in the VRAM 3 with the character size set in step S6, the details of which will be described later.

If the operator touches the character type setting button in step S5, the process proceeds to step S5.
In step 6, the process of setting the display mode of the editing screen (the number of lines and the like), inputting Japanese or English, and furthermore, setting the size of characters and the like is executed.

If it is determined in step S7 that the character type change button has been touched, the process proceeds to step S8, where the character type is set, a range in the already displayed document is designated, and characters within the designated range are designated. Perform processing to change the column to the set character type.

If a touch on the edit button is detected in step S9, the process proceeds to step S10 to select and execute an editing action such as left alignment, right alignment, or centering of a desired character string.

Further, if it is determined in step S11 that the read / save button has been touched, it is determined in step S12 whether the document being edited is to be saved or a new document is to be read, and processing is performed based on the selected contents. Execute

If it is detected in step S13 that the table / picture button has been touched, the process proceeds to step S14, where one of them is selected, and the respective subroutines are read out and edited according to the selected contents. Create tables or pictures interactively on the screen.

Further, when the format / print button is touched in step S15, the process proceeds to step S16, where the format is changed and the layout is displayed based on the format, and printing is performed if necessary.

As described above, various processes are sequentially performed based on information from the keyboard 7 or the touch panel 6. In the embodiment, during this time, the joystick 7a provided on the keyboard 7 is operated to display on the display screen. The cursor displayed in was moved. Of course, it is also possible to operate with a widely used key related to cursor movement.

<Explanation of Character Symbol Expansion (FIG. 4)>
A description will be given of character pattern expansion processing in the embodiment.

FIG. 4 shows a double-width character 30 according to the embodiment.
FIG. 7 is a diagram showing an example in which a character and a full-width character (reference character) 31 are mixed and developed.

As shown in the figure, double-width characters 30 and full-width characters 3
As can be seen from the character pitch and the line pitch of 1, they differ depending on the character type (character size).

Therefore, the cursor position at the time of inputting a character may be updated in the right direction sequentially according to the character pitch corresponding to the input character type. At this time, if it is determined that the cursor exceeds the page frame (right margin), the position is moved to the head position of the next line by the line pitch of the full-width character (reference line pitch L0).

If the cursor is positioned at the beginning of a line and, for example, a double-width character is input, a situation occurs when there is no line spacing or when characters in the immediately preceding line are deleted. The line pitch must be changed.

Therefore, in the embodiment, when a character larger than the maximum character height in the line of interest (for example, a character of 1.5 double-width characters or double-width characters) is input, the line pitch L of the line of interest is input. Was updated by the following formula.

L = difference between input character height and reference character (full-width character) + reference line pitch In the case shown, L = △ L + reference line pitch L0.

If, for example, the character string of "double conference" in FIG. 4 is deleted, the line pitch L is changed to the reference line pitch. In this process, when the deleted character string is found, the above-described process may be executed only when the maximum height in the line of the deleted character changes.

<Explanation of Scrolling (FIGS. 5 to 13)> Next, scrolling of a document screen when a document is created or during creation by the above-described processing will be described.

Description of Up Scroll (FIG. 5) FIG. 5A is a diagram showing the relationship between the document information 40 and the display screen 41.

Now, when the cursor 42 is located at the position shown in the figure (the bottom line of the display screen) and the user wants to look at the line below that, the operation of tilting the joystick 7a in that direction is performed.

When the CPU 1 detects this operation, first,
A line pitch based on the maximum vertical width in the character string in the line to be displayed is detected. Then, the entire screen is scrolled upward by the detected line pitch, and the character string of the line corresponding to the bottom line of the screen is developed.

As a result, as shown in FIG. 5 (b), a line composed of a double-width character string "whole conference" and full-width characters "ni ..." is displayed.

Description of Down Scroll (FIG. 6) FIG. 6A is an example showing the relationship between the document information 50 and the display screen 51, and shows a case where the cursor 54 is at the uppermost position of the display screen. Here, the full-width characters 52 and the double-width characters 53 are enlarged to simplify the description.

In such a situation, the joystick 7a tries to display the upper line off the screen.
Is operated, the CPU 1 executes the following processing to realize the downward scroll.

That is, the line pitch L from the cursor line to the line above it is detected (determined by the maximum character height + α in the line where the cursor is located), and the maximum character in the line to be displayed is determined. The height “H” is detected. Next, a value obtained by subtracting the maximum character height in the line where the cursor is located from the obtained sum of “L” and “H” is set as the scroll amount.

By scrolling down based on the amount obtained as a result of the calculation, the display shown in FIG. 6B becomes possible.

Description of Right Scroll (FIG. 7) Next, right scroll will be described.

Since the character type used in the embodiment is of various sizes (for example, the width is 1.3 times the width of a full-width character), the horizontal character pitch differs for each line (and for each character). Therefore, the right scroll is performed based on the character pitch of the character type existing on the left side of the cursor (off the display screen).

FIG. 7A shows document information 60 and display screen 61.
This is an example showing the relationship, and shows a case where the cursor 62 is at the leftmost position on the display screen.

At this time, when the character to the left of the position of the currently displayed cursor 62 is to be displayed, the joystick 7a is operated based on its direction.

When the CPU 1 detects this operation, first,
A character pitch based on the character type on the left side where the cursor 62 is located is detected. Then, by scrolling the detected character pitch to the right, a display screen as shown in FIG. 7B can be obtained.

Description of Left Scroll (FIG. 8) Next, left scroll will be described.

FIG. 8A shows the document information 70 and the display screen 71.
This is an example showing the relationship, and shows a case where the cursor 72 is at the rightmost position on the display screen.

In such a situation, the user tries to display the right character off the screen.
When a is operated, the CPU 1 executes the following processing to realize right scroll.

That is, the character pitch L from the position of the cursor to the character to the right is detected (determined by the type of the character at the position of the cursor), and the character width "W" on the right of the character to be displayed is displayed. Is detected.

Next, a value obtained by subtracting the character width of the character at the cursor from the obtained sum of “L” and “W” is set as the left scroll amount.

By scrolling to the left based on the calculated amount, the display shown in FIG. 8B becomes possible.

Description of Processing Procedure (FIGS. 9 to 13) As an example of achieving the processing related to the cursor movement described above, the flowchart of FIG. 9 may be processed.

First, in step S80, it is determined whether or not an operation related to cursor movement has been performed. If it is determined that an operation other than the movement of the cursor, for example, an operation of saving a document has been performed, the process proceeds to step S81, and a process based on the designated information is executed.

If it is determined that the operation based on the cursor movement has been designated, the process branches to one of the processes based on the designated cursor movement (steps S86-S89) in the judgments of steps S82-S85.

Hereinafter, the CPU based on each cursor movement
The first processing procedure will be described.

-1. Description of Cursor Movement (FIG. 10) In the flowchart of FIG. 10, first, in step S91, it is determined whether or not the current cursor position is on the uppermost line of the display screen. If it is determined that the cursor is located at a position other than this position, the process proceeds to step S92, and an operation of moving the cursor to a character position in the line immediately before the cursor position at that time is executed.

If it is determined that the cursor is located on the top line of the screen, the flow shifts to step S93 to determine whether or not that line is the first line of the edited document. Since there is no document before the first line of the document being edited, if the determination result is "YES", nothing is executed and the process returns to the flowchart of FIG.

If the cursor is positioned on the top line of the display screen and it is determined that the line is an intermediate line in the edited document, the process proceeds to step S94 to execute the scroll down display.

First, in step S94, the line pitch up to the upper line outside the screen is changed to a variable A (provided in the memory 2).
In step S95, the maximum character height in a line outside the screen is substituted for a variable B (provided in the memory 2 similarly to the variable A). Next, in step S96, these variables A,
The contents of B are added, and the value obtained by subtracting the maximum character height in the line where the cursor is located from the result is a variable C (same as the variables A and B).
Substitute for The value of this variable C is the downward scroll amount.

When this scroll amount is obtained, the entire screen is scrolled down (moved downward by "C") (step S97), and the character pattern in the line corresponding to the top line of the display screen is changed. It is developed (step S98).
Then, the cursor is moved to the top line of the display screen in step S99.

-2. Description of Movement Under the Cursor (FIG. 11) In the flowchart of FIG. 11, first, in step S100, it is determined whether or not the current cursor position is at the bottom line of the display screen. If it is determined that the cursor is located at a position other than this position, the process proceeds to step S101, and an operation of moving the cursor to a character position in a line immediately after the cursor position at that time is executed.

If it is determined that the cursor is located at the bottom line of the screen, the process proceeds to step S102, and it is determined whether the line is the last line of the edited document. Since there is no document after the last line of the document being edited, if the determination result is "YES", nothing is executed and the process returns to the flowchart of FIG.

When the cursor is positioned on the bottom line of the display screen and it is determined that the line is an intermediate line in the edited document, a line pitch up to the next line is detected in step S103. This line pitch is a line pitch based on the maximum height of the character string group in the next line as described above.

In the next step S104, the entire screen is scrolled down (moved upward by the obtained line pitch).
Then, the character pattern in the line corresponding to the bottom line of the display screen is developed (step S105). Then, step S
At 106, the cursor is moved to the bottom line of the display screen.

-3. Description of Right Movement of Cursor (FIG. 12) In the flowchart of FIG. 12, first, in step S110, it is determined whether the current cursor position is at the rightmost end of the display screen. If it is determined that the cursor is located at a position other than the above, the process proceeds to step S111, and an operation of moving the cursor to the character position on the right of the cursor position at that time is executed.

If it is determined that the cursor is located at the rightmost end of the screen, the process moves to step S112, and it is determined whether the cursor is located at the rightmost end (right margin) of the edited document. If it is determined that the cursor is at the rightmost position of the document being edited, no character exists at least to the right of that position, and the process returns to the flowchart of FIG. 9 without performing any operation.

If the cursor is positioned at the rightmost end of the display screen and it is determined that the cursor position is in the middle of the edited document, the process proceeds to step S113 to execute left scroll display.

First, at step S113, the character pitch up to the character outside the screen is substituted for the variable A, and at step S114, the character width of the character outside the screen is substituted for the variable B. Next, in step S115, the contents of these variables A and B are added, and the value obtained by subtracting the character width at the cursor from the result is substituted for the variable C. The value of this variable C is the left scroll amount.

When the scroll amount is obtained, the entire screen is scrolled to the left (moved leftward by "C") (step S116), and at least the entire pattern of the target character is displayed at the right end of the display screen. The containing column is displayed (step S117). Then, in step S118, the cursor is moved to the target character position displayed on the rightmost end of the display screen.

-4. Description of Cursor Left Movement (FIG. 13) In the flowchart of FIG. 13, first, in step S120, it is determined whether or not the current cursor position is at the leftmost end of the display screen. If it is determined in this determination that the cursor is located at another position, the process proceeds to step S121, and the operation of moving the cursor at that time to the character on the left is executed.

If it is determined that the cursor is located at the bottom line of the screen, the flow shifts to step S122 to determine whether the cursor is at the beginning of the edited document. If the cursor is at the beginning of the line, there is no character at least to the left of the cursor, and the process returns to the flowchart of FIG. 9 without performing any operation.

If the cursor is located at the leftmost position on the display screen and it is determined that the character is in the middle of the edited document, a character pitch based on the character type up to the left of the cursor is detected in step S123.

In the next step S124, the entire screen is scrolled to the right (moved to the right by the obtained character pitch), and a column including at least the entire pattern of the target character is displayed at the leftmost position on the display screen ( Step S125).
Then, in step S126, the cursor is moved to the target character position displayed on the leftmost end of the display screen.

As described above, according to the present embodiment, it is possible to scroll the display screen to display the entire line or the character based on the size of the character, and the operability is greatly improved. .

In the embodiment, the cursor movement is operated by using the joystick provided on the keyboard.
It is not limited to this. This is because, of course, the above-described effect can be achieved even by operating a key related to cursor movement provided on the keyboard.

Although the embodiment has been described with respect to a case where there are a large number of character sizes, even in the case where editing processing is performed using only vertical and / or double-width characters based on full-width characters as in the related art, The principle of the present embodiment can be applied as it is.

[0080]

As described above, according to the present invention, scroll display is performed based on the size of characters, so that it is possible to display a document without discomfort.

[0081]

[Brief description of the drawings]

FIG. 1 is a block diagram of a document processing apparatus according to an embodiment.

FIG. 2 is a flowchart illustrating an outline of processing performed by the document processing apparatus according to the embodiment;

FIG. 3 is a flowchart illustrating an outline of processing performed by the document processing apparatus according to the embodiment;

FIG. 4 is a diagram for explaining a character symbol development position setting in the embodiment.

FIG. 5 is a diagram for describing upward scrolling of the embodiment.

FIG. 6 is a diagram illustrating downward scrolling of the embodiment.

FIG. 7 is a diagram for explaining right scroll in the embodiment.

FIG. 8 is a diagram for describing left scroll in the embodiment.

FIG. 9 is a flowchart illustrating a main processing procedure related to cursor control in the embodiment.

FIG. 10 is a flowchart showing processing in moving up a cursor.

FIG. 11 is a flowchart showing processing in moving the cursor downward.

FIG. 12 is a flowchart illustrating processing in moving the cursor to the right.

FIG. 13 is a flowchart showing processing in moving the cursor to the left.

FIG. 14 is a diagram illustrating a conventional scroll process.

[Explanation of symbols]

 1 CPU 2 Memory 2a Program Area 2b Document Area 3 VRAM 4 CRT 5 Character Pattern Generator 6 Touch Panel 7 Keyboard 7a Joystick 8 External Storage 9 Printing Unit

Claims (6)

[Claims] 1. A document processing apparatus for editing or creating a document composed of a plurality of lines and displaying a mixed text of a plurality of sizes in one line on a display screen, wherein at least the document is displayed on the display screen. Character designating means displayed for designating the position of a desired character; movement instructing means for instructing the character designating means to move left or right; and one next to the character designating means by the movement instructing means When moving to the character, and when the adjacent character is located beyond the left or right frame of the display screen, the display screen is moved left or right by the amount of movement based on the horizontal width of the adjacent character. And a scroll means for scrolling the document. 2. When the movement instructing unit instructs the character designating unit to move to the right, the movement amount is determined by the character designated by the character designating unit before the movement instruction and the adjacent character. 2. The document processing apparatus according to claim 1, wherein the value is determined based on a character interval between the character and the size of the adjacent character. 3. When the movement instructing means instructs the character designating means to move to the left, the movement amount is determined by the character designated by the character designating means before the movement instruction and the adjacent character. 2. The document processing apparatus according to claim 1, wherein the value is calculated based on a character interval between the first and second characters. 4. A document processing method for displaying or editing or creating a document composed of a plurality of lines and including characters of a plurality of sizes in one line on a display screen, wherein at least the document is displayed on the display screen. The position of a desired character is designated by the displayed character designation means, and the movement of the character designation means to the left or right is instructed, and the character designation means is moved to the next character by the instruction. When the adjacent character is located beyond the left or right frame of the display screen, the display screen is scrolled left or right by an amount of movement based on the width of the adjacent character. Document processing method to be performed. 5. When a rightward movement of the character designation means is instructed by the instruction, the movement amount is determined between a character designated by the character designation means before the movement instruction and the adjacent character. 5. The document processing method according to claim 4, wherein the value is obtained based on a character interval and a size of the adjacent character. 6. When the instruction instructs the character designation means to move to the left, the amount of movement is determined by comparing the character designated by the character designation means before the movement instruction with the adjacent character. 5. The document processing method according to claim 4, wherein the document processing method is obtained by character spacing.