JPH0756706A - Document editing device - Google Patents

Abstract

PURPOSE:To quickly execute the scrolling processing, of display pictures by a simple operation and to prevent much burden from being boaded to operator's eyes from sufferat the time of retrievig a document displayed on a screen by selecting the scroll of each plural lines or the scroll of each plural lines within the range of specified display pictures. CONSTITUTION:This document editing means is provided with an input means 1 for inputting character information for preparing a document, scroll information for scrolling the prepared document on a screen or the like, a recording means 4 for recording the inputted information, a display means 5 for displaying the prepared document, a scrolling processing means 3 for scrolling a screen displaying the prepared document, and a driving means 2 for driving and controlling these means. The means 3 is provided with a scroll selecting means 3a for selecting the scroll of each plural lines or the scroll of each plural lines within the range of previously specified display pictures based upon the scroll information inputted from the means 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document editing device provided in a word processor, a personal computer or the like.

[0002]

2. Description of the Related Art In a conventional document editing apparatus such as a word processor, the screen scroll is basically performed in units of one line by pressing the up and down scroll keys. Then, by continuing to press the key, the scroll processing is continued one after another.

Further, in the screen editor software of the personal computer, the ROLL of the keyboard is used.
Screening in units of several lines is realized by using the P / ROLLDOWN key.

In addition, the upper or lower part of the display screen is used for command display or the like to scroll only the document display portion, or when the screen split function is used, only within each split area. Was being done.

[0005]

By the way, in a conventional document editing apparatus such as a word processor, when scroll processing is continuously performed in a unit of one line, the entire area which is the target of the scroll processing is scrolled by one line. Will be rewritten to. Therefore, the scroll processing time for each time is accumulated, resulting in inefficient scrolling, which is contrary to the user's intention of continuous scrolling. This effect is particularly large in document data having a strong bit image in which displayed characters are often shown in a real size.

Further, when scrolling at a high speed at a narrow interval of one line unit, the user cannot keep up with it, and apparently it looks like a mosaic on the display screen. At what timing should the scrolling be stopped? Since it relied on the intuition of the user, the burden on the user was heavy. For example, a liquid crystal display having a short display screen rewriting interval due to the display characteristics of the display device may look like a mosaic as described above.

Further, when the display screen is vertically long, it takes time to scroll up and down one line by one line from the top to the bottom or from the bottom to the top for one screen. It took a considerable amount of time to get to the screen and was not efficient.

The present invention has been made in order to solve such a problem, and the scrolling process of the display screen can be performed at high speed by a simple operation, and a document in the display screen can be searched for. An object of the present invention is to provide a document editing device that does not burden the eyes.

[0009]

To achieve the above object, the document editing apparatus of the present invention will be described with reference to the basic block diagram shown in FIG. Input means 1 for inputting scroll information or the like for scrolling the created document on the screen, storage means 4 for recording the entered information, display means 5 for displaying the created document, and scroll information. Based on the above, in a device including scroll processing means 3 for performing scroll processing on a screen on which a created document is displayed, and control means 2 for driving and controlling each of these means, the scroll processing means 3 includes input means 1 to Based on the scroll information of the above, a screen for selecting whether to scroll every plural lines or to scroll every plural lines within the range of the display screen designated in advance. Lumpur selection means 3a is characterized by being provided.

[0010]

With the scroll selection means, when scrolling, it is selected whether to scroll every plural lines or to scroll every plural lines within the range of the designated display screen. Is reduced, the time until the target display screen is displayed is shortened, and the screen display changes in stages, making it easier to read the characters on the display screen. Further, when the scroll range of the display screen is limited, the search range of the screen is narrowed down to a part, and the user can read the characters in the range by matching the field of view with the limited scroll range.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing the hardware configuration of the embodiment of the present invention.

The user uses the keyboard 21 to input a document or information for performing an editing operation. These input information are stored in the external storage device 29,
The input document content is registered. This external storage device 2
For example, a disk drive or the like is used for 9. A display or the like is used for the display device 22,
Display the input document so that it can be read by human eyes.
The display buffer 23 is a memory that holds the display contents of the display device 22. The display content is stored from the document buffer 24, which is a memory holding the input document content, via a temporary memory for transferring the character string. Further, a counter pointer 26 used for internal processing such as a pointer of each of these buffers and a counter is provided. Further, a printing device 28 such as a printer for printing the document contents, and a character shape generating device 27 used for this printing and displaying are provided. The character shape generator 27 generates the shape of the character according to the character code.

The structure of the above-mentioned display buffer is shown in FIG. 3 and will be described in detail below. The protect area A and the protect area B are special areas provided at the top and bottom of the display screen, and when the functions of the information device such as document editing / printing are activated, various commands, function displays, error displays, etc. Is an area used for, and is an area where scroll processing is prohibited. The display buffer is located between the protected area A and the protected area B, and has a configuration in which a plurality of character strings are arranged.

First, in the display of the first character string, the first character string has a reference line (bottom of the character string) of the character string at the Y coordinate of 30H in hexadecimal from the top of the display screen.
The width of the first character string in the Y direction is 12H in hexadecimal, and the amount of data required to display the first character string is 16H.
The bit image data of the first character string is set in the next area with a decimal number of 540H.

Next, in the display of the second character string, the first character string is 42H (30 hexadecimal) from the top of the display screen.
There is a reference line of the character string (the bottom of the character string) at the Y coordinate of (H + 12H), the width in the Y direction of the second character string is 10H in hexadecimal, and it is necessary for displaying the second character string. The data capacity is 500H in hexadecimal, and the bit image data of the second character string is set in the next area.

Next, when displaying the third character string, similarly, 3
The second character string is 52H in hexadecimal from the top of the display screen.
There is a reference line (bottom of the character string) of the character string at the Y coordinate of (42H + 10H), the width of the third character string in the Y direction is 12H in hexadecimal, and it is necessary to display the third character string. The data capacity is 5A0H in hexadecimal, and the bit image data of the third character string is set in the next area.

In FIG. 3, a pointer HNSTART indicated by an arrow indicates a display character string at the beginning of the document display area, a pointer HNEND indicates a display character string at the end of the document display area, and a pointer HPNT indicates Move through the document buffer to show the display string for each line.

FIGS. 4 and 5 are diagrams for explaining the pointer position of the display buffer during the upward and downward scroll processing. Table 1 shows the pointer names displayed in these drawings and the contents of the pointers.

[0019]

[Table 1]

With reference to these figures and Table 1,
About the pointer position of the display buffer when scrolling,
This will be described below. First, FIG. 4 shows the state of the display buffer when waiting for a normal key. Here, the pointer HNST
The character strings in each line from ART to pointer HNEND are displayed.

FIG. 5A shows the screen state when the up scroll key is pressed and the scroll processing for one time (from the top to the bottom of the display screen) is being performed. Pointer HKSTART matches pointer HNSTART and pointer HKEN
When D matches the pointer HNEND, the rows of the pointer HPNT are updated one after another in the range from the pointer HKSTART to the pointer HKEND, and scroll processing is being performed. The screen display is sequentially scrolled from the line of pointer HKSTART to the line of pointer HKEND.

On the other hand, FIG. 5B shows the screen state when the down scroll key is pressed and the scroll processing for one time (from the bottom to the top of the display screen) is being performed. As shown in Fig. 5 (a), the pointer HKSTART and pointer HKEND are set respectively, but pointer HNEND to pointer
Lines of pointer HPNT are updated one after another in the range of HKSTART,
Scroll processing is being performed. Screen display is pointer HK
Scrolls sequentially from the END line to the pointer HKSTART line.

FIG. 5C shows the screen state when the scroll processing in the state of FIG. 5A is completed and the upper scroll key is still pressed at that time. In this case, the scroll area is limited to the range of the display screen designated in advance. That is, in this embodiment, FIG.
From the screen state of (a), with the Y coordinate having a scroll region as a boundary, the scroll region above it becomes a non-display region,
The vertical width of the scroll area is reduced accordingly. A certain Y coordinate is preset by the user or a program. The manner of scrolling is not much different from the case of FIG. 5A in appearance, but the processing time required for scrolling for one screen is short because the scroll area is narrowed. The pointer HKSTART has been newly set because the undisplayed area was created. The pointer HRSTART is set to the uppermost character display line and the pointer HREND is set to the lowermost character display line in the undisplayed area. FIG. 5 (c) shows
It continues until the up scroll key is released, or until the last character string in the document buffer is scrolled.

FIG. 5 (d) shows the screen state when the scroll processing in the state of FIG. 5 (b) is completed and the down scroll key is kept being pressed at that time. In this case, the scroll area is limited to the range of the display screen designated in advance. That is, in this embodiment, FIG.
From the screen state of (b), with the Y coordinate having the scroll region as a boundary, the scroll region below the Y coordinate becomes an undisplayed region,
The vertical width of the scroll area is reduced accordingly. A certain Y coordinate is preset by the user or a program. The manner of scrolling does not seem to be much different from the case of FIG. 5B, but since the scroll area is narrowed, the processing time required for the scroll processing for one screen can be shortened. The pointer HKEND has been newly set because the undisplayed area was created. The pointer HRSTART is set to the uppermost character display line and the pointer HREND is set to the lowermost character display line in the undisplayed area. FIG. 5D is continued until the down scroll key is released or until the last character string display in the document buffer is scrolled.

FIG. 5E shows the screen state when the scroll processing in the state of FIG. 5C is completed and the display of the display character string in the non-display area is started. The display character string which has not been displayed is supplemented to the previously displayed non-display area. Pointer HKST to the uppermost character string display line in the undisplayed area
ART sets the pointer HKEND to the uppermost character string display line of the original scroll area. The reason why the pointer HKEND is not set to the bottom character string display line in the non-display area is that it is possible that the top character string display line in the original scroll area is cut off at the boundary with the non-display area. This is to redisplay the column display row.

FIG. 5F shows the screen state when the scroll processing in the state of FIG. 5D is completed and the display of the display character string in the non-display area is started. The display character string which has not been displayed is supplemented to the previously displayed non-display area. Pointer HKST to the bottom character string display line in the undisplayed area
ART sets the pointer HKEND in the uppermost character string display line.

FIG. 6 is a diagram showing the structure of the document buffer. Document data basically includes additional information and a character code. The additional information represents the characteristic element of the character that follows. In the embodiments of the present invention, the size of characters (number of points) is particularly meant. The additional information is paired with the character string. The pointer BSTART indicates the display character string at the beginning of the document data, and the pointer BEND indicates the display character string at the end of the document data. The pointer BPNT moves each line of the document data, and the content of the line is output from here to the character string transfer buffer.

FIG. 7 is a diagram showing the structure of the character string transfer buffer. The transfer flag TFLG is a flag for instructing preprocessing for the document buffer when transferring the contents of each line of the character string transfer buffer to the document buffer. The transfer flag TFLG is assigned with the instruction contents from 1 to 4.

First, 1 overwrites the contents of the character string transfer buffer downward from the continuation after scrolling up. Two
Overwrites the contents of the string transfer buffer from the continuation to the top after scrolling down. Further, at 3, the contents of the character string transfer buffer are overwritten downward as they are without scrolling. In No. 4, the contents of the character string transfer buffer are overwritten as they are without scrolling.

The number of transfer lines NT represents the number of lines of a character string transferred from the character string transfer buffer to the document buffer. The transfer character string is represented by additional information and a character code, and is followed by a character string end code indicating the end of the transfer character string for one line.

The pointer TSTART indicates the first transfer character string, and the pointer TEND indicates the NT first transfer character string. The pointer TPNT moves through each line of the transfer string, from which the contents of that line are output to the document buffer.

FIG. 8 is a series of schematic flow charts from when the user presses the scroll key until the original key input waits. If the up scroll key is pressed in the key waiting state, the process proceeds to the <process A> side routine, and if the down scroll key is pressed, the process proceeds to the <process B> side routine.

First, in <Process A>, each pointer and counter are initialized. Then, the first time, the entire document display area is targeted for the scroll area, and the upward scroll processing is performed. In this scrolling process, scrolling is performed in a normal area in units of lines set in advance.

At the end of the first time, it is checked whether or not the up scroll key is pressed. If the up scroll key is pressed, next, scroll processing is performed within a limited area range. In this case, as in the case of the first scroll, the process is performed in units of lines. This process continues until the up scroll key is released. Then, when the up scroll key is released, the undisplayed area is displayed again, and the original key input waiting state is resumed.

On the other hand, in <Process B>, <Process A>
Is the same as. That is, each pointer and counter are initialized. Then, the first time, the entire document display area is targeted for the scroll area, and the downward scroll processing is performed.
In this scrolling process, scrolling is performed in a normal area in units of lines set in advance.

At the end of the first time, it is checked whether or not the down scroll key is pressed, and if it is pressed, next, scroll processing is performed within a limited area range. In this case, as in the case of the first scroll, the process is performed in units of lines. This process continues until the down scroll key is released. Then, when the down scroll key is released, the undisplayed area is displayed again, and the original key input waiting state is resumed.

Next, detailed flowcharts for the case of performing scrolling by pressing the up scroll key and the down scroll key are shown in FIGS. 9 and 10, respectively, and will be described below.

First, pointer HKSTART and pointer HKEND
Set. In this process, since the data in the display buffer is scrolled up and then the data in the character string transfer buffer is sent, "1" is set in the transfer flag TFLG. Also, the transfer line limit counter NN has a specified number of transfer lines.
Set N. This transfer line number limit N is set by the user or program, but the transfer line limit counter NN
Since it is scrolled intermittently in the width of, the large value is not preferable and it is better to make it smaller than the vertical width of the scroll area. For example, if the document display area has 20 lines, the scroll area has 10 lines which is half of that, so it is appropriate to select from 5 to 10 lines. Pointer BP
NT is set to correspond to the next line (apparently located in the protected area B) indicated by the pointer HNEND.
(STEP.A01).

Next, the transfer line number limit counter NN lines or the display character string up to the end of the document buffer is set from the document buffer to the character string transfer buffer (STEP.A02). FIG. 11 is a flowchart of the transfer process from the document buffer to the character string transfer buffer when the up scroll key is pressed.

First, the transfer row number counter NT is initialized to 0 (STEP.C01). Next, 1 is added to the transfer row number counter NT (STEP.C02). And the pointer BP of the document buffer
Set the contents of one line indicated by NT in the character string transfer buffer (STEP.C03). Furthermore, the character string end code is added to the character string transfer buffer (STEP.C04). Then, the pointer BPNT of the document buffer is aligned with the next line (STEP.C05). After the above setting is completed, it is compared whether or not the pointer BPNT of the document buffer is larger than the pointer BEND (STEP.C06). As a result, if it is larger, the processing is terminated and the process returns to the original routine (S
TEP.C08), and if they are the same or smaller, it is compared whether the transfer line number counter NT is smaller than the transfer line number limit counter NN (STEP.C07). As a result, if it is smaller, the process returns to (STEP.C02), and if it is the same or larger, the process ends and returns to the original routine.

Subsequent to the processing of (STEP.A02) described above, the display character string for the transfer line number counter NT lines is set from the character string transfer buffer to the display buffer (STEP.A03). This processing will be described later in detail with reference to FIG.

Next, it is checked whether or not the up scroll key is pressed (STEP.A04), and if it is not pressed, the process ends and the key input waiting state is returned (STEP.A13). On the other hand, if it is pressed, the pointer HKSTART is reset. Also, set pointers HRSTART and HREND (STEP.
A05). Next, the pointer HRSTART to the pointer HREND is set as an undisplayed area, and the display character string in that area is erased (STEP.A06).

Further, similarly to the above-described processing of (STEP.A02), the transfer line number limit counter NN lines or the display character string up to the end of the document buffer is set from the document buffer to the character string transfer buffer ( Step.A07), and thereafter, similarly to the above-mentioned processing of (STEP.A03), the transfer line number counter NT display character strings are set from the character string transfer buffer to the display buffer (STEP.A08).

Here, it is checked again whether or not the up scroll key is pressed (STEP.A09), and if it is pressed,
Return to (STEP.A07). On the other hand, if not pressed, the pointers HKSTART and HKEND are set. Further, since the data in the character string transfer buffer is sent as it is without scrolling up the data in the display buffer, "3" is set in the transfer flag TFLG. Furthermore, the pointer from the pointer HKSTART to the transfer line limit counter NN
Set the number of display lines up to HKEND, and pointer BPNT
Is set to correspond to the line indicated by the new pointer HNEND (STEP.A10). After that, similar to the process of (STEP.A02) described above, the transfer line number limit counter NN lines from the document buffer to the character string transfer buffer or the display character string up to the end of the document buffer is set (STEP.A11). ),afterwards,
In addition, similar to the process of (STEP.A03) described above, after setting the display character string for the transfer line number counter NT lines from the character string transfer buffer to the display buffer (STEP.A12), exit and key input. Return to waiting (STEP.A13).

The above is the processing when the up scroll key is pressed. Next, the processing when the down scroll key is pressed will be described. First, set the pointers HKSTART and HKEND. In this processing, since the data in the display buffer is scrolled down and then the data in the character string transfer buffer is sent, "2" is set in the transfer flag TFLG. Further, the transfer line number limit counter NN is set to a specified transfer line number N. The pointer BPNT is set to correspond to the previous line (apparently located in the protected area A) indicated by the pointer HNSTART. (STEP.
B01).

Next, the display character string up to the transfer line number limit counter NN lines or the beginning of the document buffer is set from the document buffer to the character string transfer buffer (STEP.B02). FIG. 12 is a flowchart of the transfer process from the document buffer to the character string transfer buffer when the down scroll key is pressed.

First, the transfer row number counter NT is initialized to 0 (STEP.D01). Next, 1 is added to the transfer row number counter NT (STEP.D02). And the pointer BP of the document buffer
Set the contents of one line indicated by NT in the character string transfer buffer (STEP.D03). Furthermore, the character string end code is added to the character string transfer buffer (STEP.D04). Then, the pointer BPNT of the document buffer is set to the previous line (STEP.D05). After the above setting is completed, it is compared whether the pointer BSTART of the document buffer is larger than the pointer BPNT (STEP.D06),
As a result, if it is larger, it ends and returns to the original routine.
(STEP.D08), and if they are the same or smaller, it is compared whether the transfer line number counter NT is smaller than the transfer line number limit counter NN (STEP.D07). As a result, if it is small (STEP.D02)
Return to, and if the same or larger, end and return to the original routine.

Subsequent to the processing of (STEP.B02) above, the display character string for the transfer line number counter NT lines is set from the character string transfer buffer to the display buffer (STEP.B03). This processing will be described later in detail with reference to FIG.

Next, it is checked whether or not the down scroll key is pressed (STEP.B04), and if it is not pressed, the process is terminated and the key input waiting state is returned (STEP.B13). On the other hand, if pressed, the pointer HKEND is reset. Also, set pointer HRSTART and pointer HREND (STEP.B0
Five). Next, the pointer HRSTART to the pointer HREND are set as an undisplayed area, and the display character string in that area is erased (STEP.B06). Further, similar to the process of (STEP.B02) described above, a transfer line number limit counter NN lines from the document buffer to the character string transfer buffer or a display character string up to the beginning of the document buffer is set (STEP.B07). ), And thereafter, similarly to the above-mentioned processing of (STEP.B03), the display character string for the transfer line number counter NT lines is set from the character string transfer buffer to the display buffer (STEP.B08).

Here, it is checked again whether the down scroll key is pressed (STEP.B09), and if it is pressed,
Return to (STEP.B07). On the other hand, if not pressed, the pointers HKSTART and HKEND are set. Further, since the data in the character string transfer buffer is sent as it is without scrolling down the data in the display buffer, "4" is set in the transfer flag TFLG. Furthermore, the pointer from the pointer HKSTART to the transfer line limit counter NN
Set the number of display lines up to HKEND, and pointer BPNT
Is set to correspond to the line newly indicated by the pointer HNSTART (STEP.B10). Then, as described above (STEP.B02)
Similar to the process of (1), the display character string up to the transfer line number limit counter NN lines or the beginning of the document buffer is set from the document buffer to the character string transfer buffer (STEP.B11), and thereafter, the above-mentioned Similar to the process of (STEP.B03), set the transfer line number counter display character string for NT lines from the character string transfer buffer to the display buffer (STEP.B12), then end and return to key input waiting (STEP .B13).

The case where scrolling is performed by pressing the up scroll key and the down scroll key has been described above. Next, document buffer transfer for transferring data from the character string transfer buffer commonly used in this process to the display buffer. The processing will be described based on FIG.

First, the process branches depending on the value set in the transfer flag TFLG. The transfer TFLG is set to each of "1", "2", "3", and "4". Transfer TFLG is a pointer when it is "1" or "3"
Set the same point as the pointer HKSTART in HPNT, and then branch to (STEP.E03) and (STEP.E05) respectively. When the transfer TFLG is "2" or "4", the pointer HP
Set the same point as the pointer HKEND in NT, and then branch to (STEP.E23) and (STEP.E25) respectively. Hereinafter, each case will be described.

When "1" is set in the transfer TFLG, the transfer line number counter counting from the line indicated by the pointer HPNT
NT line Copies the contents of the next line to the line indicated by pointer HPNT.
Then set the pointer HPNT to point to the next line (S
TEP.E03).

Next, the copy source of the previous step (HPNT + N
It is checked whether T) is larger than the bottom character string display line of the scroll area. If the same or smaller (STEP.E0
3) If it is larger, the processing of the next (STEP.E05) is performed (STEP.E04). In (STEP.E05), transfer line number counter NT
Is initialized to 0. Next, the pointer TPNT of the character string transfer buffer is initialized to the first character string transfer buffer (STE
P.E06). After that, the contents of the line indicated by the pointer TPNT are copied to the line indicated by the pointer HPNT. Then the pointer HP
Set NT to point to the next line (STEP.E07). next,
Add 1 to the transfer row number counter NT (STEP.E08). And
It is checked whether NT of the transfer buffer is larger than the transfer line number limit counter NN (STEP.E09), if it is larger, the process ends, and the process routine returns to the original processing routine (STEP.E10). Perform each step of STEP.E07). When the transfer TFLG is "3" as described above, the processing after (STEP.E05) of the processing routine when the transfer TFLG is "1" is performed.

When "2" is set in the transfer TFLG, the contents of the line before the transfer line number counter NT lines counted from the line indicated by the pointer HPNT are copied to the line indicated by the pointer HPNT. Next, the pointer HPNT is set to indicate the previous line (STEP.E23).

Next, the copy source of the previous step (HPNT-N
It is checked whether T) is smaller than the uppermost character string display line in the scroll area. If the same or larger (STEP.E2
3) If it is smaller, the following processing (STEP.E25) is performed (STEP.E24). In (STEP.E25), transfer line number counter NT
Is initialized to 0. Next, the pointer TPNT of the character string transfer buffer is initialized to the first character string transfer buffer (STE
P.E26). After that, the contents of the line indicated by the pointer TPNT are copied to the line indicated by the pointer HPNT. Then the pointer HP
Set NT to point to the previous line (STEP.E27). next,
Add 1 to the transfer row number counter NT (STEP.E28). And
It is checked whether NT of the transfer buffer is larger than the transfer line number limit counter NN (STEP.E29), if it is larger, the process ends, and the process routine returns to the original processing routine (STEP.E30). Perform each processing of STEP.E27). When the transfer TFLG is "4" as described above, the processes after (STEP.E25) of the processing routine when the transfer TFLG is "2" are performed.

[0057]

As described above, according to the document editing apparatus of the present invention, the scroll processing means scrolls by a plurality of lines based on the input scroll information or is designated in advance. Within the range of the display screen, since the scroll selection means for selecting whether to scroll every plural lines is provided, the scroll processing is performed for each plural, the number of times of the scroll processing is reduced, and the desired display screen is displayed. Time is saved. Therefore, it is easy to operate,
Moreover, the processing can be performed at high speed. Further, since the memory used for the screen display is less accessed, the power consumption consumed for this can be saved. Further, since the screen display is changed step by step, the characters on the display screen are easy for human eyes to read, and even when searching for a document in the display screen, it can be done easily without any strain on the eyes and is easy to use. Furthermore, when the scroll area of the display screen is limited, in addition to the effects described above, the field of view of the user can be narrowed down to the limited scroll screen, and more efficient scroll processing can be performed.

[Brief description of drawings]

FIG. 1 is a basic conceptual diagram of the present invention.

FIG. 2 is a hardware configuration diagram applied to the embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a display buffer applied to an embodiment of the present invention.

FIG. 4 is a diagram for explaining a pointer position of a display buffer applied to the embodiment of the present invention.

FIG. 5 is a diagram for explaining a pointer position of a display buffer applied to the embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a document buffer applied to the embodiment of the present invention.

FIG. 7 is a diagram showing a configuration of a character string transfer buffer applied to the embodiment of the present invention.

FIG. 8 is a flowchart illustrating a schematic operation of an embodiment of the present invention.

FIG. 9 is a flowchart illustrating an operation when the embodiment of the present invention is applied.

FIG. 10 is a flowchart for explaining the operation when the embodiment of the present invention is applied.

FIG. 11 is a flowchart illustrating an operation when the embodiment of the present invention is applied.

FIG. 12 is a flowchart for explaining the operation when the embodiment of the present invention is applied.

FIG. 13 is a flowchart for explaining the operation when the embodiment of the present invention is applied.

[Explanation of symbols]

 1 ... Input means 2 ... Control means 3 ... Scroll means 3a ... Scroll selection means 4 ... Storage means 5 ... Display means

Claims (1)

[Claims] 1. An input unit for inputting character information for creating a document, scroll information for scrolling the created document on a screen, a storage unit for recording the input information, and A display means for displaying the created document, a scroll processing means for performing scroll processing on the screen on which the created document is displayed based on the scroll information, and a control means for driving and controlling each of these means are provided. In the device, the scroll processing means determines whether to scroll every plural lines based on the scroll information from the input device, or to scroll every plural lines within a range of a display screen designated in advance. A document editing apparatus comprising scroll selection means for selecting.