JPH07160678A - Ruled line input device - Google Patents

Abstract

PURPOSE:To prepare ruled lines in a chart without being conscious of its projecting out of an outer frame by preventing the ruled lines from being prepared beyond start point or end point coordinates at the time of arriving at the stored start point or end point coordinates in the preparation of the ruled lines. CONSTITUTION:By storing the position X of a ruled line picture element prepared last in the work area 3a of a RAM 3 as Xea, the 'start point, end point' of a horizontal ruled line (a)='Xsa, Xea' is established. Then, a cursor is moved to an X, Y position to start drawing the ruled line (b) parallel to the ruled line (a) and Xsb which is the start point of the ruled line (b) is tentatively stored in the work area. Further, the ruled line (b) is successively prepared in an X direction by the operation of (function + ), the position of a picture element during the preparation is defined as Xb, Xb, Xsa and Xea are compared every time one picture element is prepared and when Xb=Xsa or Xb=Xea is valid, the preparation processing of the ruled line (b) is neglected as long as the code of (function + is continuously generated within a fixed time (t).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a word processor, a personal computer, etc. capable of creating ruled lines in a document processing device using a keyboard as an input means.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, a function key (or shift key) is used as a method of creating ruled lines in a word processor (hereinafter referred to as "word processor").
This is achieved by pressing the and cursor keys at the same time. This means that if the cursor key is pressed within a certain time while the function key is being pressed, only one pixel of the ruled line will be created, and if the cursor key is held down for more than a certain time, the ruled line will be created continuously. I have it.

Furthermore, as a means for easily creating ruled lines,
There are the following. As position information in which the ruled lines are created, the horizontal direction is X and the vertical direction is Y, where
The unit of X is a single-byte character unit, and the unit of Y is a line unit.
Next, regarding the latest ruled line created by the above-described means, the horizontal ruled line is stored as (start point, end point) = (Xs, Xe), and the vertical ruled line is stored as (start point, end point) = (Ys, Ye). By using this information, you can draw horizontal ruled lines and vertical ruled lines of the same length at different positions by pressing the horizontal ruled line input key or the vertical ruled line input key that is a function key that is assigned in advance. Is equipped with.

Further, Japanese Laid-Open Patent Publication No. 3-100862 relates to creating a table for displaying a ruled line for the purpose of easily identifying the number of digits by specifying the number of digits for each item in the table in a word processing system. Things have been proposed.

Further, Japanese Laid-Open Patent Publication No. 4-148472 discloses a method of creating ruled line data in a ruled line creating process in a word processor, which has start point and end point information for each element of one continuous ruled line. When adding to a ruled line, the start point / end point is updated to the fixed start point / end point after addition, and when deleting, when the deletion start position matches the input start point / end point, it is deleted. Change to the confirmed start point / end point of, and when the deletion start position is included between the start point / end point of the entered ruled line, the start point / end point corresponding to the two ruled lines divided by the deletion is stored, and Based on this, a ruled line pattern is output.

[0006]

When a table of various styles is created by the ruled line creation function, the start / end points of the ruled line elements that make up the table are, for example, a list of the address book of FIG.
It is not uniform like the quotation of FIG. 3 (b) and the schedule of FIG. 3 (c). However, regarding the basic structure of the table, the outermost frame forms a rectangle, and each ruled line element in the frame is common in that it is in contact with the outer frame. .

According to the conventional technique, when a complete grid-like table is created, it can be created quickly with the horizontal ruled line key and the vertical ruled line key. However, as shown in FIG. When the constituent ruled lines are not continuous, the ruled lines must be created again by a normal key operation.

In the ruled line creating function of a document processing apparatus such as a word processor, a key input method for designating ruled line input includes, for example, simultaneous pressing of a function key and a cursor key, which facilitates ruled line input. As described above, the key code information of the key is obtained at a constant time interval while the key for realizing the above is pressed, and the key code information can be continuously input in units of ruled line pixels.

In the ruled line input operation by this, it is a normal operation to immediately display the inputted ruled line on the screen and determine whether to continue or stop the ruled line input operation while observing the screen. In addition, the ruled lines entered at a relatively fast speed are drawn on the screen so that the ruled lines can be created quickly. This makes it difficult to visually grasp how much ruled line input can be performed by operation, and if you want to end ruled line input at a certain position, unintentionally input the ruled line pixel ahead of it and pull it too much. You may be forced to perform an extra operation of deleting the ruled line with another ruled line erasing means, or you may end the input operation before reaching the target position and newly enter the ruled line input operation for the missing part. There was additional work such as executing and compensating, which deteriorated the operability. The ruled line is erased by overwriting the already drawn ruled line with [function + →].

[0010]

In order to solve the above problems, the ruled line input device of the present invention continuously presses the function key and the cursor key at the same time to continuously create ruled lines pixel by pixel. When creating one continuous ruled line by the repeat input function, a starting point and an end point of the latest ruled line a are stored, and a ruled line b parallel to the latest ruled line a is created by the same function in a document processing apparatus. Even when the ruled line b is in the repeat input state, when the stored start point or end point coordinates are created by creating the ruled line a, the input is blocked so that the ruled line is not created beyond the start point or end point coordinates.

Further, when the pressing of both the function key and the cursor key is stopped at the position where the ruled line input is blocked, that is, at the start point or the end point coordinate of the ruled line a, the start point and the end point are not updated, but the start point and the end point of the ruled line a. Is stored continuously as the latest position.

At the start or end coordinates of the ruled line a in which the ruled line input is blocked, when the pressing of the cursor key is stopped while the function key is pressed and the cursor key is pressed again in the same direction, the above block is blocked. The ruled line input is continued from the position where the ruled line b continues, and the start point and the end point of the ruled line b are updated when the ruled line input is finished, that is, when the pressing of the function key and the cursor key is stopped.

[0013]

[Function] The ruled line input unintentionally inputs the ruled line pixel of the destination to be ended, and the outer frame is first created without performing the operation of deleting the overdrawn ruled line. The ruled lines of any length do not protrude from the outer frame.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a ruled line input device such as a word processor according to the present invention will be described with reference to the system configuration diagram shown in FIG. Code 1
Is a central processing unit (CPU) that executes a program that realizes the present invention, 2 is a ROM that stores the program, and 3
Is a RAM for temporarily storing data and the like when executing processing, 3a is a work area, 3b is a document data storage area,
Reference numeral 3c is a ruled line data storage area. 4 is a liquid crystal display device,
5 is a VRAM for storing data to be displayed on the display device, 6 is a display control circuit for transferring the display data from the VRAM to the display device, 7 is a keyboard for inputting characters and function commands,
8 judges the input key and CP the corresponding keyboard
It is a key control circuit generated for U.

Further, in the following description: -One continuous horizontal ruled line start point coordinate is Xs (n), end point coordinate is Xe (n), and vertical ruled line end point coordinate is Ys (n), end point coordinate. Let be Ye (n). Here, n is a symbol representing a specific ruled line element, X is a horizontal ruled line pixel position realized in units of half-width characters, and Y is a vertical ruled line pixel position expressed in line units.

The means for inputting ruled lines are the function keys provided on the keyboard 7 and the four-direction cursor keys (→, ←,
It can be realized by pressing (↑, ↓) at the same time, and input of only one ruled line pixel is represented by [function + ↓], [function + ↑], [function + ←], [function + →], and from the key control circuit 8. Only one code corresponding to each operation is generated and one ruled line pixel is input. The continuous input is represented by [function + ↓↓] (realized by two arrows in the other direction as well), and the code of [function + ↓] is continuously generated from the key control circuit 8 at a constant time interval t. Ruled lines are continuously input in units of one pixel.

There is a cursor display indicating the ruled line input position, which is moved by the cursor key. In the ruled line data storage area, 1 bit is allocated for each ruled line pixel, and a size of Xmax × Ymax is held in a matrix. Information is stored with 1 with ruled lines and 0 with no ruled lines.

First, it is necessary to store the latest start point and end point as ruled line information, which can be realized by the following means. When creating the horizontal ruled line a, the cursor is moved to the target position [X, Y] which is the starting point. Here [Function + →
→] When the operation is executed, the key code [function + →] is generated continuously, but the key code [function +
→], the start point is currently at the cursor [X, Y]
It is possible to recognize that the line is a horizontal ruled line from the direction of the cursor.

The X at this time is stored as Xsa in the work area 3a. Next, the bit position [X, Y] of the ruled line data storage area
1 is written in and 1 pixel of the horizontal ruled line is drawn on the display, thereby executing the process of creating the ruled line toward the right side. The same processing is repeated for the code of [function + →] obtained continuously.

When the key operation of [function + →] is stopped,
The key control circuit 8 does not generate any key code. Here, the CPU stores the [function + →] code in the work area 3a as the key code processed first.

From the above state, a new [function + →]
If the code is generated, it coincides with the [function + →] stored as described above, so it is determined that the input of the horizontal ruled line a is continued, and the ruled line creation processing is continued in the right direction.

When a key operation other than [function + →] occurs in the above state, it is determined that the input operation of the horizontal ruled line a is completed, and the position X of the ruled line pixel created last is Xe.
It is stored in the work area 3a as a. From the above, "start point, end point" = "Xsa, Xea" of the horizontal ruled line a can be determined.

When creating a ruled line b parallel to the ruled line a created by the above means, it is desired to start drawing the ruled line X, Y
Move the cursor to the position. This can be done by a method similar to the method shown in the procedure for creating the ruled line a, and the starting point of the ruled line b, Xsb, is temporarily stored in the work area.

The ruled line b is sequentially created in the X direction by the operation of [function + →→]. Here, the pixel position being created is Xb. And each time one pixel is created, Xb
And the values of Xsa and Xea are compared.

As a result of the above comparison, Xb = Xs
If a or Xb = Xea is satisfied, the creation process of the ruled line b is ignored as long as the code of [function + →] is continuously generated within a fixed time t by the operation of [function + →→]. To do. As described above, the input block means in the means for solving the problem is realized.

Next, the continuous storage means in the means for solving the above problems can be easily realized by leaving Xsa and Xea unchanged at the above point. That is, the last key input at the point of is [function + →], and this code is stored in the work area by the same processing as.

Therefore, if a certain time t or more has elapsed due to the key input operation and a code other than [function + →] comes, it means that the ruled line b ends at the position of Xsa or Xea, and the start point and the end point are Xsa, It may be left as Xea.

Next, the updating means in the means for solving the above problems will be realized as follows. At the above-mentioned time point, that is, at the position where the ruled line input is blocked, the last key input is [function + →]. Here, if the keyboard is operated after the elapse of a certain time t and this is the operation of [function + →], it can be determined that the ruled line b is extended. In this case, the starting point is changed from Xsa to Xsb. Regarding the operation of creating the ruled line b, the processing may be performed according to the above, and the end point Xeb of the ruled line b may be stored and updated as the latest end point.

In the above description, the case where the horizontal ruled line is created in the right direction has been described, but it is also possible to realize the same in the left direction and in the up and down directions of the vertical ruled line.

[0030]

Since this device has the above-described structure,
In creating a table, as described above, most of them have a rectangular outer frame, and most of the ruled line elements inside are in contact with the outer frame, but by creating the outer frame first, It is possible to provide a means for easily creating a ruled line of any length without worrying about the protrusion from the outer frame.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a word processor or the like that implements a ruled line input device according to the present invention.

FIG. 2 is a diagram showing a pulse waveform generated by pressing a function key and a cursor key according to a conventional ruled line input method and a pulse waveform of a key code.

FIG. 3 is a diagram showing an example of creating a table using a ruled line creating function.

[Explanation of symbols]

1 central processing unit 2 read only memory (ROM) 3 random access memory (RAM) 4 display device such as liquid crystal 5 video random access memory (VRA)
M) 6 display control circuit 7 keyboard 8 key control circuit

Claims (3)

[Claims] 1. When a continuous ruled line is created by a repeat input function of continuously creating ruled lines in units of ruled line pixels by continuously pressing the function key and the cursor key at the same time, the latest start point and end point of the ruled line a are stored. Incidentally, in a document processing apparatus that creates a ruled line b parallel to the latest ruled line a with the same function, even if the ruled line b is in the repeat input state, the start point or the end point coordinate stored by the creation of the ruled line a is set. When reached
A ruled line input device comprising block means for blocking input so that a ruled line is not created beyond the start point or end point coordinates. 2. The starting point and the ending point of the ruled line a are not updated when the pressing of both the function key and the cursor key is stopped at the starting point or the ending point coordinate of the ruled line a in which the ruled line input is blocked, and the starting point and the ending point of the ruled line a are updated. The ruled line input device according to claim 1, further comprising: a continuous storage unit that continuously stores as the position of. 3. When the input of the ruled line is blocked at the starting point or the end point of the ruled line a, the pressing of the cursor key is stopped while the function key is being pressed, and the cursor key is pressed in the same direction again, the block is blocked. 2. The ruled line input device according to claim 1, further comprising updating means for updating the start point and the end point of the ruled line b when the ruled line input is continued as a continuation of the ruled line b from the position where the ruled line input is finished. .