JPH05274304A - Document processor - Google Patents

Abstract

(57) [Summary] [Purpose] When displaying the layout of the document data stored in the text memory in page units, a document that can display an accurate layout in which only the portion corresponding to the space in the document data is outlined. Providing processing equipment. [Structure] When the layout key is operated, "paper type", "left margin width", "upper margin width", "number of characters in one line", and "number of lines" in the format information from the RAM.
And are read out, and the frame WK corresponding to the paper size is displayed on the display 10. And from the text memory 1
After the document data for a line is read and the layout line segment display control displays the layout line segment of this document data, the layout line segment displayed by the line segment cutting process control corresponds to the space portion. Divided.

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 an apparatus which displays a reduced print layout for each page of a document.

[0002]

2. Description of the Related Art Conventionally, a commercially available word processor for English or Japanese can store the data of an input document in a text memory, while the reduced printing layout of the document stored in the text memory can be stored in page units. In many cases, a layout display function is provided so that the print format of each page can be confirmed in advance on the display by displaying it on the display and printing the input document on the printing paper. By the way, in this layout display function, "paper type", "left margin width",
Based on the "upper margin width", "the number of characters on one line", "the number of lines on one page", etc., a frame line corresponding to the paper size is displayed on the display, while one page of the text memory is displayed. For each line of the document data, reading the document data from the first character to the last character in sequence, from the determined layout display start position of each line within this frame line to the printable characters such as characters, symbols and numbers. The rectangular layout mark in the layout display line is displayed in black,
In addition, the layout mark is displayed in white in the unprintable space.

In this layout display, the layout mark may be composed of a plurality of dots because it is necessary to check the print format of each page in relation to the resolution of the display. Sometimes. Therefore, no matter which layout mark is used, the layout of the document can be determined by using the layout mark for normal characters in the document, enlarged characters that have expanded the character width, and character strings input in the line margin flash mode or justify mode. It is supposed to be displayed.

[0004]

As described above, in a word processor having a layout display function, when displaying the layout of a document on each page, a layout mark consisting of one dot for a printable character is displayed. When is displayed in black, if the printable character is an enlarged character that expands the character width, depending on the enlargement ratio,
There is no correspondence between the display position of the enlarged character and the dot position on the display, and although the enlarged character is continuous, unnecessary space may be displayed between any of these continuous enlarged characters. There is a problem. Furthermore, especially when this unnecessary space is displayed at the end of each line in the line margin flash mode or justify mode, the end of each line in the layout display is not aligned even though the format is aligned. There's a problem.

An object of the present invention is to display an accurate layout in which only the portion corresponding to the space in the document data is outlined when the layout of the document data stored in the text memory is displayed in page units. An object is to provide such a document processing device.

[0006]

In order to achieve the above-mentioned present invention, the document processing apparatus of the present invention is for inputting character and symbol data and various commands as shown in the functional block diagram of FIG. Input means, a text memory for storing the data of the document input from the input means, a display means having a display capable of displaying at least a plurality of lines of the document stored in the text memory, and a display control for controlling the display means. In a document processing apparatus having a means, a format setting means for setting a print format for printing a document via an input means and a display means, a reduced print layout for each page of a document stored in a text memory is provided. Layout display command means for commanding display, document data from text memory, and print format set by format setting means Based on the paper width and left margin width data of the data, the standard correspondence of each character and symbol of the character width to the multiple dots arranged in the print line direction is applied to each page of the document. First calculation means for obtaining the start and end positions of each line in the reduced print layout, and the space portion of each line in the reduced print layout for each page of the document based on the document data from the text memory and the predetermined correspondence Receiving the data from the first and second computing means for determining the start and end positions of the document, each line of the document is treated as a line segment whose space is divided, and the document is reduced in page units. Layout display control means for displaying the print layout on the display means via the display control means. The text memory stores the character width data for instructing the enlargement / reduction of the character width of each character or symbol, which is input from the input means as necessary, in association with the data of each character or symbol. The first calculation means is configured to obtain the positions of the start and end of each line in consideration of the character width specified by the character width data, and the second calculation means is configured to calculate the start and end of the space portion of each line. The position may be obtained by taking the character width specified by the character width data into consideration.

[0007]

In the document processing apparatus according to the present invention, when the layout display command means instructs the display of the reduced print layout for each page of the document stored in the text memory, the reduced print layout for each page of the document The positions of the start and end of each line are based on the data of the document from the text memory by the first computing means and the data of the paper width and the left margin width of the print format of the print format data set by the format setting means. , A character having a standard character width and a symbol are associated with a plurality of dots arranged in the print line direction. On the other hand, the positions of the start end and the end of the space portion of each line in the reduced print layout of each page of the document are obtained by the second calculation means based on the predetermined correspondence with the data of the document from the text memory. As a result, the reduced print layout of each page of the document is determined by the layout display control means by the first and second pages.
Receiving the data from the calculation means, each line of the document is displayed on the display means via the display control means as a line segment whose space portion is divided.

That is, since the positions of the start and end of each line can be obtained by the correspondence relationship in which characters and symbols having a standard character width are associated with a plurality of dots, the line end of each line is surely aligned, especially in the case of line end alignment. be able to. In addition, layout line segments that are determined by the start and end positions of each line are displayed separated by the space part of each line, so even if the character width of characters and symbols is non-standard, only the space part corresponds to it. It is possible to display an accurate layout with white outline.

[0009]

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 an English word processor provided with a liquid crystal display capable of displaying a plurality of lines of a document. As shown in FIG. 2, a keyboard 3 is arranged in the front part of the main body frame 2 of the word processor 1, and a printing mechanism PM having a thermal print head is arranged in the main body frame 2 behind the keyboard 3. A liquid crystal display 10 capable of displaying a plurality of lines of characters and symbols is provided at the rear of the keyboard 3.

The keyboard 3 includes character keys including an alphabet key, a numeric key and a symbol key, a space key,
A return key, a cursor movement key for moving the cursor on the display 10 vertically and horizontally, a layout key for displaying a reduced print layout of a document, a format setting key for setting a print format for printing a document, An enlargement key for instructing enlargement of the character width, a reduction key for instructing reduction, and keys for various editing functions are provided as in the usual case. Printing mechanism PM
Is a general thermal transfer type equipped with a platen, a line feed motor for driving the platen, a carriage, a carriage motor for driving the carriage, a thermal print head, and a drive circuit for driving the thermal printing head, and detailed description thereof is omitted. To do.

Next, the control system of the word processor 1 is constructed as shown in the block diagram of FIG. The keyboard 3, the display controller (LCDC) 11 having a display RAM for outputting display data to the liquid crystal display (LCD) 10, the printing mechanism PM, and the drive circuit 13 for the warning buzzer 12 are control devices. The input / output interfaces 20 of C are respectively connected. The control device C includes a CPU 22 and an input / output interface 20, a CGROM 23, a ROM 25, and a RAM 30 connected to the CPU 22 via a bus 21 such as a data bus.

The CGROM 23 stores dot pattern data for display and printing for each of a large number of characters in association with code data. RO
M25 is a display drive control program for controlling the display controller 11 in accordance with character code data such as characters, numbers and symbols input from the keyboard 3, and document data is sequentially read from the text memory 32 to print the printing mechanism PM. A print driving control program for driving the printer, a layout display control control program, which will be described later, peculiar to the present application, and the like are stored. Regarding the layout display, the ROM 25 has a basic dot number consisting of a plurality of dots in which characters and symbols having a standard character width are arranged in the printing direction (for example, 4 dots consisting of 2 dots in the printing direction and 2 dot lines). And is set in advance in correspondence with. Therefore, the layout display control includes a dot number association control subroutine that controls to increase or decrease the basic dot number when the enlarged character width data or the reduced character width data is detected. There is.

As shown in FIG. 4, the line buffer 31 of the RAM 30 stores document data composed of code data such as a plurality of characters and symbols input from the keyboard 3, and the text data in the layout display control. One line of document data read from the memory 32 is stored. The start address of the line buffer 31 is TA
And the end address is EA. Text memory 32
The document data for each line is sequentially received from the line buffer 31 and stored therein. A buffer pointer (whose pointer value is PT) 33 stores one address of the line buffer 31. The start buffer 34 stores a start position of a layout line segment on the display 10 or a division start position when the layout line segment is divided by a space. The first end buffer 35 stores the end position of the layout line segment on the display 10 or the division end position when the layout line segment is divided by a space. The second end buffer 36 stores a temporary end position when obtaining the end position of the layout line segment.
The row number counter 37 stores the number of rows under layout processing.

In the flag memory 38, the flag data of the detection flag KF which is set (the data is "1") when a character or symbol for layout display is detected or a space is detected, and the layout display is displayed. Flag NF which is set when no character or symbol for detection is detected
Flag data is stored. By the way, when a character or a symbol is input with the operation of the enlargement key or the reduction key and the numeric keys for instructing the magnification, the text memory 32
The character width data corresponding to the magnification is stored together with the code data of these characters and symbols.

Here, since the print format setting is the same as the normal one, a brief explanation will be given. By operating the format setting key, a format menu for the format setting is displayed. In this format menu, "Paper type", "Left margin width", "Top margin width", "Number of characters on one line", "Number of lines on one page", "Tab setting position", ... Since a plurality of setting item names are displayed, desired setting contents are selected or input and set by numerical values, and the set format information is stored in the work memory of the RAM 30.

Next, a layout display control routine executed by the control unit C of the word processor 1 will be described with reference to FIGS. 4 and 8 to 11 based on the flowcharts of FIGS. However, as a step before starting this control, it is assumed that an arbitrary numerical value is set in advance in each setting item of the print format. It is also assumed that the document of the desired page in the document to be layout-displayed is displayed on the display 10. In the figure, reference numeral Si
(I = 30, 31, 32 ...) Is each step. When the layout key is operated, the control is started after the document data of the page being displayed is erased, and first the R
"Type of paper", "left margin width", and "upper margin width" in the format information from the work memory of AM30
And "the number of characters in one line" and "the number of lines" are read (S3
0), based on the data of these parameters, the left margin position LM for the layout display on the display 10, the dot number d1 per character, and the dot number d2 per space are obtained by the dot number associating process. (S31). Next, the frame line W corresponding to the paper size
K is displayed on the display 10 (S32). For example, as shown in FIG. 8, a frame size W4 of a sheet size A4 is displayed. Next, the row count value L of the row counter 37
"1" is stored as (S33). Next, regarding the document data of the displayed page, one line of document data is read out from the text memory 32, and the line buffer 31 is read.
(S34). Next, as shown in FIGS. 4 and 8, the line buffer 31 is set as the buffer pointer value PT.
Start address TA is set and start buffer 3
4, the start value ST, the first end value E1 of the first end buffer 35, and the second end value E of the second end buffer 36.
The left margin position LM is set as 2 and the detection flag KF is reset (S35).

Next, layout line segment display control (see FIG. 6) is executed (S36). When this control is started and the buffer pointer value PT is not the end address EA of the line buffer 31 (S50: No), the code data CD designated by the buffer pointer value PT is read from the line buffer 31 (S51). Then, when the detection flag KF is in the reset state, that is, when the character or symbol to be displayed is not yet detected (S52: No), when the code data CD just read is a tab (S61: Y).
es), the number of dots at the preset tab position Tn of the tab is set to the start value ST (S67), and the buffer pointer value PT is incremented by 1 (S5).
8) and returns to S50. Also, the code data C just read
When D is a space (S61: No, S62: Ye
s), the dot number d2 is added to the start value ST (S6
6) After S58, the process returns to S50. However, when the read code data CD is not a tab or space but a character or a symbol (S61 / S62: No), the detection flag KF is set (S63), and the start value ST is set to the dot number d1.
Is added to the first end value E1 (S6
4), the first end value E1 is set to the second end value E2 (S65), and the process returns to S50 via S58. However, when the characters or symbols are accompanied by enlarged or reduced character width data, the dot number d1 is increased or decreased according to the character width data.

When the detection flag KF is set and the read code data CD is a tab (S51, S52.S53: Yes), the second end value E is obtained.
The number of dots at the tab position Tn is set to 2 (S60),
It returns to S50 through S58. When the read code data CD is a space (S51, S52: Ye
s, S53: No, S54: Yes), the second end value E
The dot number d2 is added to 2 (S59), and the process returns to S50 via S58. However, when the read code data CD is not a tab or space but a character or a symbol (S51, S
52: Yes, S53 and S54: No), when the second end value E2 is larger than the first end value E1 (S55:
Yes), the second end value E2 is set to the first end value E1 (S56). When the second end value E2 is smaller than the first end value E1 (S55: No), S5
Move to 7.

Next, the dot number d1 is added to the first end value E1 (S57), and the process returns to S50 via S58. Then, when the buffer pointer value PT becomes equal to the end address EA of the line buffer 31 (S50: Ye
s), when the detection flag KF is in the set state (S6
8: Yes), a line segment for layout is displayed on the display 10 from the start value ST to the first end value E1 (S69), and the process returns. However, the detection flag K
When F is in the reset state (S68: No), no character or symbol for layout display has been detected, so the non-detection flag NF is set (S70), and the process returns. For example, as shown in FIG. 9, the layout line segment of the first line of the document data is displayed on the display 10 from the start value ST to the first end value E1.

Next, in the displayed layout line segment, line segment division processing control (see FIG. 7) is performed to divide the line segment corresponding to the space portion and display the document layout (S37). ). When this control is started, first, similarly to S34, the head address TA of the line buffer 31 is set as the buffer pointer value PT, and the left margin position LM is set as the start value ST and the first end value E1, respectively. The detection flag KF is reset (S80). Next, when the non-detection flag NF is reset (S81: No) and the buffer pointer value PT is not the end address EA (S82: N).
o), the code data CD designated by the buffer pointer value PT is read from the line buffer 31 (S83).
Then, when the detection flag KF is in the reset state, that is, when the space is not yet detected (S84: N
o), when the read code data CD is a tab or a space (S93: Yes, S94: Yes), the detection flag KF is set (S96), and the start value ST
Is set to the first end value E1 (S97), the buffer pointer value PT is incremented by 1 (S90),
Return to S82. However, when the read code data CD is not a tab or space but a character or a symbol (S93.
(S94: No), the dot number d1 is added to the start value ST (S95), and the process returns to S82 via S90. However, when the characters or symbols are accompanied by enlarged or reduced character width data, the dot number d1 is increased or decreased according to the character width data.

Next, when the detection flag KF is set, that is, when a space is detected (S84: Ye
s), when the read code data CD is a tab (S85: Yes), the tab position Tn is set to the first end value E1.
The number of dots is set (S92), and after S90, S8
Return to 2. When the read code data CD is a space (S85: No, S86: Yes), the first
The dot number d2 is added to the end value E1 (S91), and S
After 90, the process returns to S82. On the other hand, when the read code data CD is not a tab or space but a character or symbol (S85 / S86: No), the layout line segment is divided (blank) from the start value ST to the first end value E1. (S87). Next, the first end value E1 is set as the start value ST (S88), and the detection flag K is set.
F is reset (S89) and returns to S82 through S90.

When the buffer pointer value PT becomes equal to the end address EA of the line buffer 31 (S82: Yes), no character or symbol is detected when the detection flag KF is set, that is, after detecting a space. When (S98: Yes), the start value ST
From the first end value E1, the layout line segment on the display 10 is erased (S99), and the process returns.
However, when the detection flag KF is in the reset state (S
98: No), since there are characters and symbols at the end of the line, the process directly returns. For example, as shown in FIG. 10, in the layout line segment on the first line displayed on the display 10, the start value ST corresponding to a plurality of space portions is divided into the first end value E1. To be done.

Next, when the line number count value L is not the last line EN of the page (S38: No), the line number count value L is incremented by 1 (S39), and S33 and subsequent steps are repeatedly executed, and the page is repeated. The layout display relating to the document data is executed, and this control ends. When the control is started and the non-detection flag NF is set (S81: Yes), the control is immediately terminated. Each time the row count value L is incremented, the layout start position in the vertical direction of the row is sequentially lowered by a predetermined number of dots. However, this layout display is displayed until the display stop command key is operated from the keyboard 3. For example, as shown in FIG. 11, the reduced print layout related to the document data of the page is displayed.

As described above, the positions of the start and end of each line can be obtained by the correspondence relationship in which characters and symbols having a standard character width are associated with the basic dot number consisting of a plurality of dots. Ensures that the ends of each line are aligned. In addition, the layout line segments that are determined by the start and end positions of each line are displayed separated by the space part of each line, so even if the character width of a character or symbol is an enlarged or reduced character, only the space part is displayed. It is possible to display an accurate layout outlined in white.

The basic number of dots is the same as the display 1
It can be set based on the resolution and size of 0. In the layout display control, after the layout line segment display control is executed for all the lines included in the page, the line segment dividing process control may be executed for these plural lines.

In the case of a word processor having a type wheel type printing mechanism, if proportional spacing mode or justify mode can be set, proportional space data for each of a large number of types of the type wheel is stored in ROM. Stored, and when proportional space mode is set,
In the layout line segment display control, the start value ST and the first end value E1 of the line are obtained based on the proportional space data regarding each character or symbol of the document data for one line stored in the line buffer. The layout line segment is from the start value ST to the first end value E1.
Is displayed over. Next, in the line segment break control, based on the proportional space data regarding each character or symbol of the document data for one line, the start value ST corresponding to the start position of the space and the first end position corresponding to the character start position. E1 is calculated and these start values ST
Thus, the layout line segment is divided (blank) at a plurality of positions over the first end value E1. Further, when the justify mode is set, in the layout line segment display control, based on the inter-word space data calculated according to the line length and the number of inter-word spaces in one line, the calculation is performed in the same manner as described above. The layout line segment is displayed from the obtained start value ST to the first end value E1. Next, in the line segment division control, based on the inter-word space data, similarly to the above, from the obtained start value ST to the first end value E
Over 1, the layout line segment is divided at a plurality of places.

[0027]

As described above in detail, according to the document processing apparatus of the present invention, the layout display command means, the first calculation means, the second calculation means, and the layout display control means are provided, and the standard arrangement is provided. Since the start and end positions of each line are obtained by the correspondence relationship in which characters and symbols having different character widths are associated with a plurality of dots, the line end of each line can be surely aligned especially in the case of line alignment. In addition, layout line segments that are determined by the start and end positions of each line are displayed separated by the space part of each line, so even if the character width of characters and symbols is non-standard, only the space part corresponds to it. It is possible to display an accurate layout with white outline.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a configuration of the present invention.

FIG. 2 is a perspective view of a word processor.

FIG. 3 is a block diagram of a control system of a word processor.

FIG. 4 is an explanatory diagram illustrating a data structure in a line buffer.

FIG. 5 is a schematic flowchart of a layout display control routine.

FIG. 6 is a schematic flowchart of a layout line segment display control routine.

FIG. 7 is a schematic flowchart of a line segmenting control routine.

FIG. 8 is an explanatory diagram of initial setting values of parameters in layout display control.

FIG. 9 is an explanatory diagram showing a layout line segment on the first line.

FIG. 10 is a diagram showing a layout display example in which layout line segments are divided at space portions.

FIG. 11 is a diagram showing a display example of a layout display for one page.

[Explanation of symbols]

 1 Word Processor 3 Keyboard 10 Liquid Crystal Display 11 Display Controller 22 CPU 25 ROM 30 RAM 32 Text Memory 34 Start Buffer 35 First End Buffer C Controller

Claims (2)

[Claims] 1. At least an input unit for inputting character or symbol data and various commands, a text memory for storing document data input from the input unit, and a document stored in the text memory. Display means having a display capable of displaying a plurality of lines, display control means for controlling the display means, and format setting means for setting a print format for printing a document via the input means and the display means. In a document processing apparatus including: a layout display command unit for commanding display of a reduced print layout for each page of a document stored in the text memory; document data from the text memory; and a format setting unit. Based on the paper width and left margin width data of the print paper of the print format data set in First computing means for determining the position of the start and end of each line in the reduced print layout of each page of the document by a predetermined correspondence in which each character or symbol of character width is associated with a plurality of dots arranged in the print line direction; Second calculating means for obtaining the start and end positions of the space portion of each line in the reduced print layout of each page of the document based on the predetermined correspondence with the data of the document from the memory; A layout display control means for receiving the data from the computing means and displaying the reduced print layout for each page of the document on the display means through the display control means, using each line of the document as a line segment whose space is divided. A document processing device comprising: 2. The document processing apparatus according to claim 1, wherein the text memory stores character width data for instructing enlargement / reduction of the character width of each character or symbol input as necessary from the input means. The first operation means is configured to store the data of characters and symbols in association with the data, and the first computing means is configured to obtain the start and end positions of each line in consideration of the character width specified by the character width data. The second calculation means,
A document processing apparatus, characterized in that the start and end positions of the space portion of each line are obtained in consideration of the character width specified by the character width data.