JPH07200241A - Document processor - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a document processing device capable of simplifying editing work by left scroll by displaying the document on the left side of the cursor as much as possible when scrolling left. [Structure] When the character string “XYZF” is displayed on the display 22 and the cursor K is displayed at the character “Y”, if the cursor left movement key is operated, the cursor K enters the left movement prohibited area. Therefore, the left scroll processing control is executed, the display screen is scrolled to the left, the character “D” is displayed on the right end portion of the display 22, and the cursor K is moved to the position designated by the left scroll predetermined position LSP. Is displayed. That is, the character string on the upstream side in the scroll direction is displayed on the display screen as much as possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document processing device,
In particular, the present invention relates to a device for improving the screen scrolling in the horizontal direction of the document displayed on the display.

[0002]

2. Description of the Related Art Conventionally, a Japanese or English word processor is basically provided with a display and a keyboard capable of displaying document data for a plurality of lines, and the document data consisting of input characters and symbols is predetermined. It is displayed in a matrix on the display with the character size of
A rectangular cursor for designating an input position or an edit position of a document is moved and displayed for each input of the document or each operation of the cursor movement key. By the way, when the entire input document cannot be displayed on the display all at once, when the document on the left side of the display screen is displayed on the screen, the cursor left movement key is pressed to scroll left, and the document on the right side of the display screen is also pressed. When is displayed on the screen, the cursor right movement key is pressed to scroll right.

That is, when the cursor left movement key is pressed, the cursor continuously moves in the display screen to the display position at the left end, and then the entire document continues to the right while being fixed at the left end of the display screen. When the cursor is moved to the left and scrolled, and when the cursor right move key is operated continuously, the cursor moves continuously to the right end display position in the display screen, and then is fixed to the right end of the display screen. Moves continuously to the left and scrolls right. Normally, during text input, the character string to be entered later is controlled to always be displayed, so the beginning of the sentence is off the display screen.Therefore, when editing the beginning of the sentence, the cursor left In many cases, the left and right scroll keys are often operated continuously.

[0004]

As described above, when the cursor left movement key is continuously operated, the entire document is continuously moved rightward and left scrolled while the cursor is fixed at the left end of the display screen. Done. That is, when the screen is scrolled to the left, the cursor leads the display screen to scroll left, so when the desired edit character on the upstream side in the left scroll direction is displayed on the screen, the operation of the cursor left movement key is stopped. However, because the scroll speed is relatively fast, the edit character moves to the right of the cursor, so you can operate the cursor right move key to align the cursor with the edit character and edit it. However, there is a problem that the work of displaying a desired character on the screen by the left scroll and editing it becomes complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a document processing apparatus capable of simplifying editing work by left scroll by displaying the document on the left side of the cursor as much as possible when scrolling left.

[0006]

According to a first aspect of the present invention, there is provided a document processing apparatus, which has an input means for inputting characters and symbols and various commands, as shown by a solid line in the functional block diagram of FIG. Data storage means for storing input data of symbols, display means for displaying characters and symbols including a display having a cursor, display data creation means for receiving the data of the data storage means and creating display data, and display data A display data buffer that stores the display data, a start position memory that stores the display start position of the display data for one screen in the display data buffer, and display data for one screen from the display start position is received from the display data buffer and displayed. The display control means for controlling the display means and the cursor movement command to the left or the right to receive the current position of the cursor in the display data buffer. In a document processing device provided with a cursor position memory for storing the cursor position memory, a predetermined position on the display is set based on the current position of the cursor stored in the cursor position memory and the display start position stored in the start position memory. When the cursor determination means determines whether the cursor is within the movement allowable area and when the cursor movement command is input to the left or right, when the cursor determination means determines that the cursor is out of the movement allowable area, the cursor is moved. A head position deciding means for deciding a display head position and outputting it to a head position memory so as to be located at a predetermined cursor return position set in at least the right half part of the movement allowable area on the display. .

Here, as shown by the one-dot chain line in the functional block diagram of FIG. 1, a line head display command key is provided in the input means, and the head position determining means stores data when a command is input from the line head display command key. Based on the data of the means, the cursor position stored in the cursor position memory, and the display start position stored in the start position memory, the start end of the bullet character of the character string including the character pointed by the cursor is moved. As a left end of the permissible area, a display start position is determined (claim 2). As shown by a two-dot chain line in the functional block diagram of FIG. The deciding means, when inputting a command from the line end display command key,
Based on the data of the data storage means, the cursor position stored in the cursor position memory, and the display start position stored in the start position memory, the end of the line end character of the character string including the character pointed by the cursor is determined. The display start position may be determined as the right end of the movement allowance region (claim 3), and various other configurations may be adopted.

[0008]

In the document processing apparatus according to the first aspect, the input data of characters and symbols is stored in the data storage means, and the display data creation means receives the input data from the data storage means and creates the display data. , The display data is stored in the display data buffer. Further, the cursor position memory stores the current position of the cursor in the display data buffer in response to a cursor movement command to the left or right when inputting character data or operating the cursor movement key. Then, the cursor determination means determines that the cursor has a predetermined position on the display based on the current position of the cursor stored in the cursor position memory and the display start position for one screen in the display data buffer stored in the start position memory. Since it is determined whether it is within the movement allowable area,
The head position determining means, when inputting a cursor movement command to the left or right, determines that the cursor is out of the movement permitted area by the cursor determination means, the cursor is at least the right half portion of the movement permitted area on the display. The display start position scrolled to the right or left is determined so as to be positioned at the predetermined cursor return position set in (1) and output to the start position memory. As a result, the display control means receives the display data for one screen from the display head position from the display data buffer, controls the display on the display of the display means, and controls the display of the cursor at the predetermined cursor return position.

As described above, when the cursor moves out of the predetermined movement-permitted area on the display as a result of the input of the cursor movement command to the left or right, the cursor moves to at least the right half of the movement-permitted area on the display. The display start position that is scrolled right or left is determined so as to be positioned at the predetermined cursor return position set in the part, and the display data for one screen is displayed from this display start position and the cursor is displayed on the display. Since it is displayed in at least the right half of the movement allowable area, the document on the left side of the cursor is displayed as much as possible, especially when the display screen is scrolled to the left, and the cursor can be quickly moved to the edit character displayed on the left side. It can be moved, and editing work by left scrolling can be simplified.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is a case where the present invention is applied to a tape printing apparatus capable of printing a large number of characters such as alphabetic characters and symbols on a printing tape. As shown in FIG. 2, a keyboard 3 is arranged in the front part of the main body frame 2 of the tape printing apparatus 1, a printing mechanism PM is arranged in the main body frame 2 behind the keyboard 3, and the keyboard 3 is arranged. Immediately behind it, a liquid crystal display 22 is provided which can display input characters and symbols as a print image. This display 22 has 32 dots in the vertical direction,
It has a display screen composed of 121 dots in the horizontal direction. Here, reference numeral 4 is a release button for opening the cover frame 6 when the tape cassette CS attached to the printing mechanism PM is attached or detached.

A keyboard (corresponding to input means) 3 is used to move a character key for inputting alphabetic characters, numbers and symbols, a space key, a line feed key, a block break key, and a cursor K in vertical and horizontal directions. Cursor move key, Formatting key to change and set format information such as print character size and font number, Line head display key to display the line beginning part of the character string including the character indicated by cursor K, and line end to display the line end part A display key, an execution key for ending various setting processes, a print key for instructing printing, a power key for turning the power on and off, and the like are provided. Here, the modified block key is a key for dividing the document data into blocks.

Next, the printing mechanism PM will be briefly described with reference to FIG. 3. A rectangular tape cassette CS is detachably attached to the printing mechanism PM. The tape cassette CS has a laminated film tape. 7, a tape spool 8 on which the print ribbon 9 is wound, a ribbon supply spool 10 on which a print ribbon 9 is wound, a take-up spool 11 for winding the print ribbon 9, and a double-sided tape 12 having the same width as the laminate film tape 7. And a supply roller 13 wound with the release paper on the outside, and a joining roller 1 for joining the laminated film tape 7 and the double-sided tape 12 together.
4 and 4 are rotatably provided.

A thermal head 15 is erected at a position where the laminate film tape 7 and the print ribbon 9 overlap each other, and the platen roller 1 for pressing the laminate film tape 7 and the print ribbon 9 against the thermal head 15.
6 and a feed roller 17 that presses the laminated film tape 7 and the double-sided tape 12 against the joining roller 14 to create the printing tape 19 are rotatable on a support 18 pivotally attached to the body frame 2. Is pivoted to. In the thermal head 15, a heating element group composed of 128 heating elements is vertically arranged.

Therefore, when the tape feed motor 45 (see FIG. 4) is driven in the predetermined rotation direction, the joining roller 14 and the take-up spool 11 are driven in synchronization with each other in the predetermined rotation direction, and the heat of the thermal head 15 is generated. When the elements are energized, characters or bar codes are printed on the laminated film tape 7 by a plurality of dot rows, and the laminated film tape 7 is used as the printing tape 19 with the double-sided tape 12 bonded to the tape feeding direction A. 2 is fed to the outside of the main body frame 2 as shown in FIGS. For details of the printing mechanism PM, refer to Japanese Patent Laid-Open No. 2-106555.

Next, a cutting device 30 for automatically cutting the printing tape 19 will be briefly described with reference to FIG. 3. A plate is provided immediately inside the main body frame 2 corresponding to the left side of the tape cassette CS. -Shaped auxiliary frame 31 is erected, and fixed blade 32 is fixed to this auxiliary frame 31 upward. A pivot shaft 33 in the left-right direction fixed to the auxiliary frame 31 rotatably pivots a portion near the front end of an operation lever 34 extending in the front-rear direction, and the pivot lever 33 extends forward of the pivot shaft 33 of the operation lever 34. In the corresponding part,
The movable blade 35 is attached so as to face the fixed blade 32. Further, the rear end portion of the operation lever 34 is provided with the cutting motor 4
6 (see FIG. 4) is configured to be swingable up and down by a swing drive mechanism (not shown), and the movable blade 35 is always held in a state of being separated from the fixed blade 32.

The printing tape 19 printed by the thermal head 15 extends from the tape cassette CS between the fixed blade 32 and the movable blade 35 to the outside of the main body frame 2 and is therefore driven by the cutting signal. The cutting motor 46 vertically swings the rear end portion of the operation lever 34 via the swing drive mechanism, the movable blade 35 approaches the fixed blade 32, and the printing tape 19 is cut by these both blades 32, 35. It

By the way, as the printing tape 19 fed from the tape cassette CS, tape widths are 6 mm and 9 m.
Five types, m, 12 mm, 18 mm, and 24 mm are prepared. The bottom wall of these tape cassettes CS has four protruding claws in order to detect any of these five types of tape widths. A combined protruding piece 20 is provided. A cassette sensor 42 (see FIG. 4) that detects the tape width from the combination of the protruding claws of the protruding piece 20 is attached to the main body frame 2 that supports the lower side of the tape cassette CS. That is, the cassette sensor 42 outputs a cassette signal of "0100" when the tape width is 24 mm, or "1100" when the tape width is 12 mm, depending on the combination of the protruding claws that form the protruding piece 20.
Output the cassette signal of the tape cassette C
When S is not attached, a cassette signal of "0000" is output.

Next, the control system of the tape printer 1 is shown in FIG.
The block diagram of FIG. Control device C
The input / output interface 50 of the
Cassette sensor 42 and liquid crystal display (LCD) 2
2, a display controller (LCDC) 23 having a video RAM 24 for outputting display data, a drive circuit 44 for a warning buzzer 43, and the thermal head 1.
Drive circuit 47 for driving 5, and tape feed motor 4
A drive circuit 48 for driving the motor 5 and a drive circuit 49 for driving the cutting motor 46 are connected to each other.

The control unit C includes a CPU 52 and this CPU.
An input / output interface 50, a display CG (character generator) ROM 53, a printing CG (character generator) ROM 54, a ROM 55, and a RAM 60, which are connected to 52 via a bus 51 such as a data bus. The display CGROM 53 has six types of display dot pattern data (7, 10, 1) for each typeface (Gothic typeface, Mincho typeface, etc.) for each of a large number of characters such as alphabetic characters and symbols.
6, 21, 32, and 32 BIG dots) are stored in association with the code data corresponding to the display character size. Here, the display character size of 32 BIG dots is a display character size that can be displayed larger than the 32 dot character size in the case of a character string that does not extend below the baseline like an uppercase letter of the alphabet.

The printing CGROM 54 has a function for each of a large number of characters such as alphabetic characters and symbols.
There are 7 types of dot pattern data for printing (6
Points: 16 dots, 10 points: 24 dots, 1
3 points: 32 dots, 19 points: 48 dots,
26 points: 64 dots, 38 points: 96 dots, 44 points: 96 BIG dots) are stored in correspondence with the print character size corresponding to the code data. Here, the print character size of 96 BIG dots is a character size that can be printed larger than the 96 dot character size in the case of a character string that does not extend below the baseline like an uppercase letter of the alphabet.

In the ROM 55, a display drive control program for controlling the display controller 23 in correspondence with code data of characters such as characters, numbers and symbols input from the keyboard 3, and data in the print data buffer 68 are sequentially read to perform thermal processing. A print drive control program for driving the head 15 and the tape feed motor 45, a control program for tape print control, which will be described later and is unique to the present application, are stored. In the ROM 55, as shown in FIG. 5, a character size conversion table TB1 in which a print character size SZ and a display character size when printing at that size are associated with each other.
Is stored.

Although not shown in the ROM 55, 7
A print character search table that associates the print character size of each type with the start address (index address) of the printing CGROM 54 that stores the dot pattern data of a series of characters and symbols related to each print character size, and this index address CGR for printing each character and symbol
A print character index table corresponding to the storage start address in the OM 54 is stored. Furthermore,
Although not shown, the ROM 55 stores 6 types of display character sizes and a dot pattern data of a series of characters and symbols related to each display character size, and the display CG ROM 5
A display character search table in which the start address (index address) of No. 3 is associated and a display character index table in which this index address is associated with the storage start address of the display CGROM 53 of each character or symbol are stored. .

A text memory (corresponding to data storage means) 61 of the RAM 60 stores document data input from the keyboard 3. In the parameter memory 62, a pointer value SP of a start address pointer that indicates the start address of the text memory 61 and a pointer value EP of an end address pointer that indicates the end address thereof
Then, the data of the data count value DC and the print character size SZ are stored. The display character size memory 63 stores data of the obtained display character size. The arrangement position information memory 64 stores the display character position in the display data buffer 65 for each character to be displayed. In the display data buffer 65, display dot pattern data of a plurality of input characters are combined and stored. The display buffer 66 stores one screen of display data for displaying the input document on the display 22 via the video RAM 24.

In the display parameter memory 67, a cursor absolute position pointer value (corresponding to the cursor position memory) KPA for indicating the current position (absolute position) of the cursor K with respect to the head position in the display data buffer 65, and output to the display buffer 66. Display data buffer 65
Display start position pointer value (corresponding to the start position memory) TDP for indicating the display start position of the display data for one screen in, and cursor display position pointer value DKP for instructing the display position of the cursor K with respect to the start position in the display buffer 66. , A left margin pointer value LMP in the display buffer 66 which indicates the end of the left movement prohibited area LM set at the left end of the display 22.
And a write margin pointer value RMP in the display buffer 66 for instructing the start end of the right movement prohibited area RM set at the right end portion thereof, and a cursor pointer value KP for instructing the current position of the cursor K in correspondence with the address of the text memory 61. Are stored respectively.

In the print data buffer 68, print dot pattern data of a plurality of characters used for printing are combined and stored as print dot image data.
The flag memory 69 stores flag data of the cursor jump flag KJF which is set (data is "1") when the line head display key or the line end display key is operated.

Next, the tape print control routine executed by the controller C of the tape printer 1 will be described with reference to the flow charts of FIGS. In the figure, reference numeral Si (i = 10, 11, 12, ...) Indicates each step. Here, on the display 22, as shown in FIG. 6, a left movement prohibited area (left margin zone LM) of a predetermined number of dots (for example, 16 dots) is set at the left end and the right end thereof is set. A right movement prohibited area (write margin zone RM) of a predetermined number of dots (for example, 16 dots) is set in the area, and a movement permitted area is set inside both of these movement prohibited areas. It is possible to move within this movement allowable area. Therefore, the left margin pointer value LMP is a predetermined value in the display buffer 66 corresponding to the end of the left movement prohibited area LM, and the right margin pointer value RMP is the display corresponding to the start end of the right movement prohibited area RM. It is a predetermined value in the buffer 66. However, in each of the drawings after FIG. 17, it is assumed that the display data of the display buffer 66 is displayed on the display 22.

When the power is turned on by the power key on the keyboard 3, this control is started, and the memories 61 to 69 of the RAM 60 are cleared first, and in particular the parameter memory 62.
Initial setting processing for initializing the printing mechanism PM, while initial value "0" is set in each of the cursor absolute position pointer value KPA, the cursor display position pointer value DKP, the display start position pointer value TDP and the cursor pointer value KP. Is executed (S10). Next, standard format information data is stored in the first 2 bytes of the text memory 61, a document input screen is displayed on the display 22, and this input screen corresponds to the print character size of the standard format information. A rod-shaped cursor K having the size of the displayed character is displayed (S11). For example, as shown in FIG. 15, in the first 2 bytes of the text memory 61, "no decoration" is used as the character decoration, "Mincho typeface" is used as the font number, and "44pt (points)" is used as the print character size. Standard format information including is stored.

Next, in order to display the characters stored in the text memory 61 as a print image, a print image creating process is executed (S12), and a print image displaying process is further executed (S13). This print image display processing will be described later for convenience of description. And
When the format key is operated (S14 / S15: Yes
), Format information setting processing control is executed (S19), S12
・ Go to S14 via S13. In this format information setting process control, a format setting screen in which the format setting contents such as character decoration type name, print character size and typeface name can be collectively set is displayed on the display 22. Therefore, the cursor movement key is operated. Then, when the cursor K is moved to the setting item "character modification type name", "print character size name" or "typeface name", the number key corresponding to the desired setting content is input, and the execute key is operated. Format information including the data of the character modification number and the print character size set by numbers is stored in the text memory 61 as the modified format information.

Next, when a printable key such as an alphabetic character key, a symbol key, or a numeric key is operated (S14: Yes, S15: No, S16: Yes), the code data of the operated printable key is written. Document data storage processing for storing the data in the text memory 61 as data is executed (S20), and since each character is composed of 2 bytes, the cursor pointer KP is incremented by 2 bytes (S2).
1), goes through S12 and S13 and goes to S14. By the way, including the line start display key and line end display key, cursor up, down,
When either the left or right movement key is operated (S14:
Yes, S15, S16: No, S17: Yes), and process control (see FIG. 8) for changing the cursor pointer value KP is executed (S22).

When this control is started, first, the cursor pointer value KP is increased / decreased and changed according to the type of the cursor movement key (S26). In this process, the cursor pointer value KP is based on the operated cursor up / down / left / right movement key, and the address portion α corresponding to the type of the cursor movement key is used.
When the line head display key is operated, it is changed to the address of the line head character of the character string including the character pointed to by the cursor K, and when the line end display key is operated, the point is displayed with the cursor K. Is changed to the address of the end-of-line character in the character string containing the character Next, when the line head display key or the line end display key is operated (S27: Yes), the cursor jump flag KJ
F is set (S28), this control is ended, and S12
The process proceeds to S14 via S13.

Next, the print image creation processing control of S12 (see FIG. 9) will be described. Here, when the character string "ABCDXYZF" is input as the document data, the standard format information and the code data of the character string "ABCDXYZF" are sequentially stored in the text memory 61 as shown in FIG. . At this time, as shown in FIG. 16, the printing dot pattern data relating to these character strings "ABCDXYZF" are sequentially developed in the print data buffer 68, and the display dot pattern data relating to those character strings are successively developed in the display data buffer 65. To be done. Here, the print end position PEG _A is the expansion end position and print end position of the dot pattern data for printing of the character “A”
PEG _B is the development end position of the printing dot pattern data of the character "B", ..., and the display cursor position DKG
_A is the display cursor position and the display cursor position corresponding to the expansion end position of the display dot pattern data of the character "A"
DKG _B is the display cursor position corresponding to the expansion end position of the display dot pattern data of the character "B", .... The print end position PEG ₀ is the print data buffer 68.
, And the display cursor position DKG ₀ is the start address of the display data buffer 65.

When this control is started, first the data in the text memory 61 is sequentially searched from the head address,
Based on the format information, the character code, and the line feed code, the arrangement position information for expanding the display dot pattern data into the display data buffer 65 is obtained for each character to be displayed, and the arrangement position information is the display character position.
It is stored in the arrangement position information memory 64 as DMG (S3
0). That is, the display character position information is obtained by, for example, sequentially adding the character widths in each print line from the format information, the character code, the line feed code, and the dot pattern data for printing to obtain the print character position at the time of printing for each character. The display character position is obtained by multiplying the coordinate value of the print character position by 1/3.

Next, an initialization process for initializing the parameter information relating to the printing process in the parameter memory 62 is executed (S31). That is, in the parameter memory 62, the start address pointer value SP is set to the start address of the text memory 61 (see FIG. 15), and the end address pointer value EP is set to the address next to the end address of the text memory 61 (see FIG. 15). 15),
An initial value "0" is set as the data count value DC, "44pt" is set as the print character size SZ, and an initial value "0" is set as the print end position PEG.

Next, since the data of the format information and the character code are each composed of 2 bytes, when the search address obtained by adding the address obtained by doubling the data count value DC to the start address does not match the cursor pointer value KP ( (S32: No), the process proceeds to S32, but when the search address matches the cursor pointer value KP (S32: Ye
s), the cursor absolute position pointer value KPA is set to the value of the display cursor position DKG which is 1/3 times the print end position PEG (S33). Next, when the data of the search address is read (S34) and the data is data of format information (S35: Yes), the print character size of the format information is changed to the parameter memory 62 and stored. Processing control is executed (S37).

Next, the data count value DC is incremented by 1 (S39), and the search address and the end address pointer value obtained by adding the doubled data count value DC to the start address pointer value (start address) SP If the address designated by the EP does not match and there is a character to be displayed in the text memory 61 (S4
0: No), S32 and subsequent steps are repeatedly executed. And
When the data of the search address is a printable character code (S35: No, S36: Yes), display image generation processing control (see FIG. 10) is executed (S36).

When this control is started, first, the display character size corresponding to the print character size in the parameter memory 62 is read based on the character size conversion table TB1 (S50), and the display character size and the display character search. A display CGR that stores dot pattern data for a series of characters and symbols of that display character size based on a table
The index address of OM53 is read (S51),
Further, based on the index address, the display character index table, and the character code, the storage start address of the character code, that is, the font storage address in the display CGROM 53 is read (S52), and the display address stored in the font storage address is read. The dot pattern data is read from the display CGROM 53 and stored in the display data buffer 65 at the display character position corresponding to the print character position (S53). Next, a value obtained by adding the character width P of the character is stored in the print end position PEG (S54), this control ends, and the process returns to S39 of the print image creation processing control.

Next, in the print image creation processing control, after S39 is executed, the search address obtained by adding the address obtained by doubling the data count value DC to the start address matches the address designated by the end address pointer value EP. If so (S40: Yes), this control is terminated and the process returns to S13 of the tape print control. Next, the print image display processing control of S13 (see FIG. 11) will be described. First, when no character code is stored in the text memory 61, none of the cursor absolute position pointer value KPA, the display start position pointer value TDP, the cursor pointer value KP, the cursor display position pointer value DKP and the print end position PEG. Since it is "0", S60 to S
If No is determined in 61 and Yes in S62,
Left scroll processing control (see FIG. 13) is executed (S
65).

When this control is started, the cursor absolute position pointer value KPA is equal to the write margin pointer value RMP.
Since it is smaller than (S80: Yes), "0" is set to the display start position pointer value TDP, and the cursor absolute position pointer value KPA (= 0) is set to the cursor display position pointer value DKP (S83). ), Terminates this control, and returns to S67 of the print image display processing control,
In the display data buffer 65, the display dot image data for one screen is read from the address designated by the display start position pointer value TDP, and the display buffer 66
Is output to (S67). As a result, no data is displayed in the display buffer 66 on the display 22 via the video RAM 24. next,
The image data of the cursor K is output to the address designated by the cursor display position pointer value DKP of the display buffer 66 (S68), this control is ended, and the process returns to S14 of tape printing control. As a result, as shown in FIG. 17, the image data of the cursor K indicated by the chain double-dashed line is output at the start position of the display buffer 66, and the cursor K is displayed at the left end of the display 22.

Next, when the character "A" is input,
Since the cursor pointer value KP is incremented (S21) (indicated by KP1 in FIG. 15), the print end position PEG
Is added by the character width P of the character (S54), and the cursor absolute position pointer value KPA is changed accordingly (S54).
33). As a result, in the print image display processing control,
As shown in FIG. 17, the cursor absolute position pointer value KPA
The display start position pointer value TDP is smaller than (S60:
No), the difference between these pointer values KPA and TDP is smaller than the right margin pointer value RMP (S61: No), and the difference between these pointer values KPA and TDP is larger than the left margin pointer value LMP (S62: No), the cursor movement processing control in the display screen (see FIG. 14) is executed (S6
6).

When this control is started, the write margin pointer value RM is calculated from the cursor absolute position pointer value KPA.
Since P is large (S90: Yes), "0" is set to the display start position pointer value TDP and the cursor absolute position pointer value KPA is set to the cursor display position pointer value DKP (S92), and this control ends. Then, S67 to S68 of the print image display processing control are executed. As a result, as shown in FIG. 17, the character "A" is displayed on the left end of the display 22 and the cursor K is displayed at the position designated by the cursor display position pointer value DKP.

By the way, as shown in FIG. 18, when the input character string "ABC" is displayed on the display 22 and the cursor K is displayed on the right side of the character "C", the character "D" is displayed. Is newly input, the cursor pointer value KP is similarly incremented (indicated by KP2 in FIG. 15).
The character width P of the character is added to G (see PEG
_(Illustrated by _D ) and corresponding cursor absolute position pointer value
KPA is changed. As a result, in the print image display processing control, as shown in FIG. 18, the display head position pointer value TDP is smaller than the cursor absolute position pointer value KPA (S60: No), but the difference between these pointer values KPA and TDP is Since it is larger than the write margin pointer value RMP (S6
1: Yes), right scroll processing control (see FIG. 12) is executed (S64).

Since the cursor jump flag KJF is not set when this control is started (S70: N
o), the display start position pointer value TDP is set to a value obtained by subtracting the right scroll predetermined position (corresponding to the cursor return position) RSP (for example, the right end of the movement allowable area) from the cursor absolute position pointer value KPA, and The cursor display position pointer value DKP contains the cursor absolute position pointer value.
A value obtained by subtracting the display head position pointer value TDP from KPA is set (S71), this control is ended, and S67 to S68 of the print image display processing control are executed. As a result, as shown in FIG. 19, the display screen is scrolled to the right, the character “D” is displayed on the display 22 at the right end, and the cursor K is moved to the position designated by the right scroll predetermined position RSP. Is displayed.

By the way, as shown in FIG. 20, the character string "XYZ" of the input character string "ABCCDXYZF" is input.
When the cursor left move key is operated once while the cursor F is displayed on the display 22 and the cursor K is displayed on the right side of the character “F”, the cursor pointer value KP is decremented in the same manner. (KP3 in FIG. 15), the cursor pointer value KP
The cursor absolute position pointer value KPA is changed according to the print end position PEG corresponding to. As a result, in the print image display processing control, as shown in FIG. 20, the display start position pointer value is more than the cursor absolute position pointer value KPA.
TDP is small (S60: No), these poita values KPA and TDP
Is smaller than the right margin pointer value RMP and larger than the left margin pointer value LMP (S61
-S62: No), cursor movement processing control in the display screen is executed (S66).

When this control is started, the cursor absolute position pointer value KPA is equal to the write margin pointer value RMP.
Since it is larger (S90: No), the cursor display position pointer value DKP is set to a value obtained by subtracting the display start position pointer value TDP from the cursor absolute position pointer value KPA (S91), and this control ends and printing is performed. S67 to S68 of the image display processing control are executed. As a result, as shown in FIG. 20, only the cursor K moves to the character “F” and is displayed on the display 22 without scrolling.

Similarly, as shown in FIG. 21, when the cursor left movement key is operated twice and the cursor K is displayed at the character "Y", the cursor left movement key is pressed once more. When it is operated, the cursor pointer value KP is decremented (see KP2 in FIG. 15).
, The cursor absolute position pointer value KPA is changed according to the print end position PEG corresponding to the cursor pointer value KP. As a result, in the print image display processing control, as shown in FIG. 21, the cursor absolute position pointer value
Since the display start position pointer value TDP is larger than KPA (S60: Yes), the display start position pointer value TDP is
The head position of the display data buffer 65 corresponding to the head address of the block data including the cursor pointer value KP is set (S63). Then, with these poita values KPA
When the difference from TDP is larger than the write margin pointer value RMP (S61: Yes), right scroll processing control is executed (S64).

Since the cursor jump flag KJF is not set when this control is started (S70: N
o), S71 is executed in the same manner as described above, the control is terminated, and S67 to S68 of the print image display processing control are executed. As a result, as shown in FIG. 22, the display screen is scrolled to the left, the character “D” is displayed at the right end of the display 22, and the cursor K is moved to the position designated by the right scroll predetermined position RSP. Is displayed.

By the way, as shown in FIG. 23, the character string "XYZ" of the input character string "ABCCDXYZF" is input.
When the cursor F is displayed on the display 22 and the cursor K is displayed on the character "Y", and the cursor left movement key is operated once, the cursor pointer value KP is similarly decremented. Therefore (indicated by KP2 in FIG. 15), the print end position corresponding to the cursor pointer value KP Cursor absolute position pointer value according to PEG
KPA is changed. As a result, in the print image display processing control, when the display start position pointer value TDP is smaller than the cursor absolute position pointer value KPA and the difference between these pointer values KPA and pointer value TDP is smaller than the left margin pointer value LMP, that is, When the cursor K enters the left movement prohibited area LM (S60 / S61: No, S62:
Yes), the left scroll processing control is executed (S65).

When this control is started, the cursor absolute position pointer value KPA is equal to the write margin pointer value RMP.
If it is larger than (S80 / S81: No), the display start position pointer value TDP is set to the cursor absolute position pointer value KP.
A value obtained by subtracting the left scroll predetermined position LSP (for example, the right end of the movement allowable area) from A is set, and the cursor display position pointer value DKP is obtained by subtracting the display start position pointer value TDP from the cursor absolute position pointer value KPA. A value is set (S82), this control is ended, and S67 to S68 of the print image display processing control are executed. As a result, as shown in FIG. 22, the display screen is scrolled to the left, and the character “D” is displayed at the right end of the display 22.
Is displayed, and the cursor K is displayed at the position designated by the left scroll predetermined position LSP. That is, the character string on the upstream side in the scroll direction is displayed on the display screen as much as possible.

Here, in the text memory 61, FIG.
As shown in, the character string “AB
In addition to "CDXYZF", further block code and second
The character string “JKLMN” that is block data is stored, and as shown in FIG. 25, the character string “LMN” is displayed on the display 22 and the cursor K is displayed on the right side of the character “N”. At this time, when the line head display key is operated, the cursor jump flag KJF is set (S27 to S28), and the cursor pointer value KP is set to the second value.
Since it moves to the beginning of the block data line (in FIG. 24,
KP4), the cursor absolute position pointer value KPA is changed to the value of the display cursor position DKG ₀ at the beginning of the second block corresponding to the print end position PEG at the beginning of the second block corresponding to the cursor pointer value KP (Fig. 25 is shown in [KPA]. As a result, in the print image display processing control,
It is determined as Yes in S60, and the display start position pointer value TDP
Is set to the start position of the display data buffer 65 corresponding to the start address of the block data including the cursor pointer value KP (S63). Then, since the difference between these pointer values KPA and TDP is smaller than the left margin pointer value LMP (S61: No, 62: Yes), the left scroll processing control is executed (S65).

When this control is started, the cursor absolute position pointer value KPA is changed to the write margin pointer value RMP.
Larger than (S80: No) and the cursor jump flag KJF is set (S81: Yes), the display start position pointer value TDP is set from the cursor absolute position pointer value KPA to the left home position LHP (for example, movement). It is the left edge of the allowable area, and the value obtained by subtracting () corresponding to the left margin pointer value LMP) is set, and the cursor display position pointer value DKP is set to the cursor absolute position pointer value KP.
A value obtained by subtracting the display start position pointer value TDP from A is set (S84), the cursor jump flag KJF is reset (S85), this control is ended, and S67 to S68 of print image display processing control are executed. . This allows
As shown in FIG. 26, the display screen is scrolled left,
The first character "J" of the second block data is displayed on the left end portion of the display 22 and the cursor K is moved to the left end position of the movement allowable area indicated by the left home position LHP.
Is displayed.

On the other hand, when the line end display key is operated while the display screen and the cursor K are displayed as shown in FIG. 26, the cursor jump flag KJF is set (S27 to S28) and the cursor pointer value KP is set. Moves to the line end of the second block data (see KP5 in FIG. 24).
, The cursor absolute position pointer value KPA is changed to the value of the display cursor position DKG _N at the end of the second block corresponding to the print end position PEG at the end of the second block corresponding to the cursor pointer value KP (FIG. 26). [KPA]. As a result, in the print image display processing control, S
It is judged No at 60. And these poita values KPA
And the TDP are larger than the write margin pointer value RMP (S61: Yes), the right scroll process control is executed (S64).

Since the cursor jump flag KJF is set (S70: Yes), the display start position pointer value TD
P is the cursor absolute position pointer value KPA to the right home position RHP (for example, the right end of the movement prohibited area)
Is set, the cursor display position pointer value DKP is set to the value obtained by subtracting the display start position pointer value TDP from the cursor absolute position pointer value KPA (S72), and the cursor jump flag KJF is reset ( S73), this control is ended, and S67 to S68 of the print image display processing control are executed. As a result, FIG.
As shown in FIG. 5, the display screen is scrolled to the right, the display 22 displays the end character “N” of the second block data at the right end portion thereof, and the right home position RH
The cursor K is displayed at the right end position of the movement allowable area designated by P.

Next, in the tape print control, when the print key is operated (S14: Yes, S15 to S17: No,
S18: Yes), print processing control is executed (S23), S12
・ Return to S14 via S13. Since this print processing control is similar to the normal print processing, a brief description will be given. Format information and character codes are sequentially read from the text memory 61.
Based on the print character search table and the print character index table, the CGROM 54 for printing the character code
The dot pattern data for printing is read out, expanded in the print data buffer 68, and combined and stored. The dot image data for printing in the print data buffer 68 is output to the printing mechanism PM and printed on the print tape 19.
By the way, when a key other than the formatting key, the printable key, the cursor movement key including the line head display key and the line end display key, and the print key is operated (S14: Yes, S15 to S15).
18: No), the process corresponding to the operated key is executed (S24), and the process returns to S14 through S12 and S13.

As described above, as a result of input of the cursor left movement command by the cursor left movement key operation or the cursor right movement command by the cursor right movement key operation, the cursor K moves in the substantially central portion on the display 22. When it is out of the allowable area, the cursor K is displayed on the display 22.
The display start position TDP that is scrolled right or left is determined so as to be positioned at the cursor return position set at the right end of the upper movement allowable area, and the display data for one screen is displayed from this display start position TDP. At the same time, since the cursor K is displayed at the right end of the movement allowable area, especially when the display screen is scrolled to the left, the document on the left side of the cursor K is displayed as much as possible, and the cursor K is displayed on the left side. You can quickly move to the edit character and simplify the editing work by scrolling left.

Further, by simply operating the line head display key, the character string subsequent to the line character of the character string designated by the cursor K is displayed in the movement allowable area of the display K. Therefore, the cursor K is moved to the edit character of the line head portion. You can move quickly to, and you can simplify the editing work. Further, since the character string before the end-of-line character of the character string designated by the cursor K is displayed in the movement allowable area of the display 22 only by operating the end-of-line display key, the cursor K is quickly moved to the edit character at the end of the line. The editing work can be simplified.

Here, the correspondence between each means described in the claims and the configuration in the above-mentioned embodiment will be explained. What corresponds to the cursor determining means is the special input S60 to the print image display processing control. In S62, what corresponds to the leading position determining means is right scroll processing control and left scroll processing control.

The right scroll predetermined position RSP and the left scroll predetermined position LSP may be set to arbitrary positions in the right half part of the movement allowance area. It is also possible to provide a block head display key or a sentence head display key on the keyboard 3 to display the head portion of each block or the head portion of document data on the display 22. Further, the keyboard 3 can display the block tail display key or the sentence end display It is also possible to provide a key to display the end of each block or the end of document data on the display 22. It should be noted that, within the scope of the technical idea of the present invention, various modifications may be made to the control of the above-described embodiment based on existing technology or technology obvious to those skilled in the art. It should be noted that the present invention is applied to various document processing devices such as a word processor capable of displaying an input document with a predetermined display character size or a print image, which is provided with a keyboard and a display for displaying various cursors such as a rectangular shape. Of course you can get it.

[0058]

According to the document processing apparatus of the first aspect,
Cursor determination means and head position determination means are provided, and when the cursor moves out of a predetermined movement allowable area on the display as a result of input of a cursor movement command to the left or right, the cursor moves on the display. The display start position of the right scroll or the left scroll is determined so as to be located at the predetermined cursor return position set in at least the right half portion of the allowable area, and the display data for one screen is displayed from this display start position. At the same time, since the cursor is displayed in at least the right half of the movement allowable area on the display, the document on the left side of the cursor is displayed as much as possible, especially when the display screen is scrolled to the left, and the cursor is displayed on the left side. It is possible to quickly move to the edited character and simplify the editing work by scrolling left.

According to the document processing apparatus of the second aspect, the input means is provided with a line head display command key, and the head position determining means, when the command is input from the line head display command key, the data in the data storage means and the cursor. Based on the cursor position stored in the position memory and the display start position stored in the start position memory, the start end of the first character of the character string including the character pointed by the cursor is set as the left end of the movement allowable area. Since it is configured to determine the display start position, the character string after the first character of the character string specified by the cursor is displayed in the movement allowable area of the display by simply operating the line display command key. You can quickly move to the edit character at the beginning of the line and simplify the editing work.

According to the document processing apparatus of the third aspect, the input means is provided with a line end display command key, and the head position determining means, when the command is input from the line end display command key, the data in the data storage means and the cursor. Based on the cursor position stored in the position memory and the display start position stored in the start position memory, the end of the line end character of the character string including the character pointed by the cursor is set as the right end of the movement allowable area, Since it is configured to determine the display start position, by simply operating the line end display command key, the character string before the line end character of the character string pointed to by the cursor is displayed in the movement allowable area of the display. You can quickly move to the editing character at the end of the line, and you can simplify the editing work.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a configuration of claims 1 to 3.

FIG. 2 is a perspective view of a tape printer.

FIG. 3 is a schematic plan view of a printing mechanism equipped with a tape cassette.

FIG. 4 is a block diagram of a control system of the tape printer.

FIG. 5 is a diagram illustrating setting contents of a character size conversion table.

FIG. 6 is an explanatory diagram illustrating a movement allowable area set on a display.

FIG. 7 is a schematic flowchart of a tape printing control routine.

FIG. 8 is a schematic flowchart of a routine of cursor pointer change processing control.

FIG. 9 is a schematic flowchart of a print image creation process control routine.

FIG. 10 is a schematic flowchart of a routine of display image generation processing control.

FIG. 11 is a schematic flowchart of a print image display processing control routine.

FIG. 12 is a schematic flowchart of a right scroll process control routine.

FIG. 13 is a schematic flowchart of a routine for left scroll processing control.

FIG. 14 is a schematic flowchart of a routine for controlling cursor movement processing within a display screen.

FIG. 15 is an explanatory diagram of a text memory in which standard format information and character string codes are stored.

FIG. 16 is an explanatory diagram for explaining the storage states of dot pattern data in the print data buffer and the display data buffer in association with each other.

FIG. 17 is an explanatory diagram illustrating a positional relationship between the display data buffer and the display buffer when the character “A” is input.

18 is a view corresponding to FIG. 17 when the character strings “A to D” are input.

FIG. 19 is a diagram corresponding to FIG. 17 illustrating right scrolling accompanying the input of the character “D”.

FIG. 20 is a view corresponding to FIG. 17 when a character string of a plurality of characters is input.

FIG. 21 is an explanatory diagram of each pointer value when the cursor left movement key is operated.

FIG. 22 is a diagram corresponding to FIG. 17 for explaining left scrolling by operating the cursor left movement key.

FIG. 23 is an explanatory diagram of each pointer value when the cursor left movement key is operated.

FIG. 24 is a view equivalent to FIG. 15 in which first and second block data are stored.

FIG. 25 is an explanatory diagram of each pointer value when the line head display key is operated.

FIG. 26 is an explanatory diagram of each pointer value when a line end display key is operated.

[Explanation of symbols]

 1 Tape Printing Device 3 Keyboard 22 Liquid Crystal Display 52 CPU 55 ROM 60 RAM 61 Text Memory 65 Display Data Buffer 66 Display Buffer 67 Display Parameter Memory C Controller

Front Page Continuation (72) Inventor Kengo Omura 3-46-15 Osu, Naka-ku, Nagoya City BSK Corporation

Claims (3)

[Claims] 1. Input means for inputting characters and symbols and various commands, data storage means for storing input data of characters and symbols, and display means capable of displaying characters and symbols including a display having a cursor. A display data creating means for receiving the data of the data storage means and creating display data; a display data buffer for storing the display data; and a start position for storing the display start position of the display data for one screen in the display data buffer. The memory, the display control means for controlling the display means so as to display the display data for one screen from the display start position from the display data buffer, and the display data in response to the cursor movement command to the left or right In a document processing device comprising a cursor position memory for storing the current position of the cursor in a buffer, the cursor position memory Cursor determination means for determining whether the cursor is within a predetermined movement allowable area on the display based on the stored current position of the cursor and the display start position stored in the start position memory; Alternatively, when a cursor movement command is input to the right and the cursor determination unit determines that the cursor is out of the movement-permitted area, the cursor returns to a predetermined cursor return position set in at least the right half of the movement-permitted area on the display. And a head position determining means for determining the display head position so as to be located at a position and outputting the head position to the head position memory. 2. A line head display command key is provided in the input means, and the head position determination means, when a command is input from the line head display command key, the data of the data storage means and the cursor position stored in the cursor position memory. Based on the display start position stored in the start position memory, the display start position is determined by setting the start end of the first character of the character string including the character pointed by the cursor as the left end of the movement allowable area. The document processing apparatus according to claim 1, wherein the document processing apparatus is configured. 3. A line end display command key is provided in the input means, and the head position determining means, when a command is input from the line end display command key, stores the data in the data storage means and the cursor position stored in the cursor position memory. Based on the display start position stored in the start position memory, the display start position is determined by setting the end of the line end character of the character string including the character pointed by the cursor as the right end of the movement allowable area. The document processing apparatus according to claim 1, wherein the document processing apparatus is configured.