JPH0113128B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a printing position display method in an information processing system such as a document creation device.

[Background of the invention]

Generally, in a document creation device, etc., a document is edited and created based on document data entered on a keyboard, and the document is displayed on a display device (hereinafter referred to as CRT).
will be displayed. The operator checks the document displayed on the CRT and prints the document.

In such a document creation device, when printing a document on paper, conventionally it is not possible to know the actual printing position on the paper from the CRT display. Therefore, when it is desired to set the print position, a method is used, for example, to copy a base paper on which printing has been previously performed, and perform a trial print on the copy paper to adjust the print position. In such a method of performing trial printing, it is extremely difficult to align the printing position in one go.

Furthermore, in a document creation device, the format (print format) is usually specified before document creation, so the operator knows in advance the print pitch, line break pitch, etc. when printing the document. As a result, when characters are inserted into an existing document and printed, an operator calculates the desired print position based on the current cursor position on the CRT. However, such a method requires the operator to calculate the print position from the cursor position, which has the disadvantage of increasing the operational burden on the operator.

[Purpose of the invention]

This invention was made in view of the above circumstances, and its purpose is to determine the printing position from the current cursor position on the display screen when printing characters by inserting them into an existing document in a document creation device or the like. It is an object of the present invention to provide a printing position display method that allows a predetermined printing position to be always set reliably and easily by automatically calculating and displaying it on a display screen.

[Key points of the invention]

This invention calculates data indicating a print position on a print sheet based on a cursor position on a display screen, and displays this calculated data on a display screen. This allows the comparison between the current cursor position and print format to be confirmed on the display screen when creating a document.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a partial configuration of a display device of a document creation device according to the present invention. In the figure, reference numeral 1 denotes a CRT controller, which performs display control when displaying display data VD sent from a CPU (not shown) via a data bus 2 on a CRT (not shown). This CRT controller 1 is
Register 1a that stores address X indicating the cursor position sent from the CPU via address bus 3
It is equipped with 4 is an address selector that selects the address corresponding to the display data sent from the CPU via the address bus 3 and the CRT controller 1.
Both raster addresses RA from RA are given.
This address selector 4 receives control signals (read/write control signals) from the CRT controller 1.
Both of the above addresses are selected and output to the refresh memory 5 at the RW timing. The reflex memory 5 stores the display data VD sent via the data bus 2 based on the address from the address selector 4, and further outputs the stored display data VD. This reflex memory 5
The memory contents and the display data displayed on the CRT are as follows.
This means that there is a one-to-one correspondence. Display data VD read out from the reflex memory 5 under the control of the CRT controller 1 is sent to the data selector 7 via the latch circuit 6. Data selector 7
is given the print position data PD output from the print position memory (hereinafter simply referred to as memory) 20, and selects and outputs one of the data VD and PD according to the select signal S from the AND circuit 8. do. AND circuit 8 has one input terminal as
Print position display command from CRT controller 1 (print position display command corresponding to cursor position) PI
is given. Also, for the other input terminal,
An output signal G1 of an AND circuit 21 is applied. The character generator 9 outputs a dot pattern corresponding to the data (character code) output from the data selector 7. This dot pattern is
Parallel-serial conversion register (P/S conversion register) 10
The data is converted into serial data and sent to the video control circuit 11. P/S conversion register 10
The operation of the CRT controller 1 is controlled by a control signal M output from the CRT controller 1. The video control circuit 11 controls the display on a CRT (not shown) according to the data output from the P/S conversion register 10.

On the other hand, in this invention, the cursor address X stored in the register 1a of the CRT controller 1
is applied to a divider 22, which is, for example, an arithmetic circuit of a CPU. The quotient Q and remainder R, which are the calculation results of the divider 22, are given to each arithmetic unit 23 and 24, respectively. Each calculation result of the calculators 23 and 24
The PD is latched by the latch circuit 25 and then stored in the memory (print position memory) 20. That is, the calculation result PD is print position data obtained by converting the cursor position into a print position on the print paper. Data PD is written into and read from the memory 20 in accordance with the address PA output from the AND circuit 26. The AND circuit 26 is gate-controlled by the output signal G1 of the AND circuit 21, and controls address transfer output from the address selector 4. The AND circuit 21 has one input terminal supplied with the output signal E1 of the comparator 27, and the other input terminal supplied with the output signal E2 of the comparator 28. The comparator 27 receives an address (i.e., the number of characters per character) from the address selector 4 at one input terminal.
Given an address (A) indicating the location of the CRT screen,
The other input terminal is given an address B (that is, an address indicating the first position when displaying the print position data PD) from the CRT controller 1. Further, the comparator 28 has one input terminal given the address A, and the other input terminal given the address A.
An address C (that is, an address indicating the last position when displaying print position data PD) is given from the CRT controller 1. Note that 12 is a control bus through which control signals and display data from the CPU are normally sent to the CRT controller 1.

In such a configuration, the operation according to the present invention will be explained. Normally, display data VD sent from the CPU is stored in the reflex memory 5 under the control (timing) of the CRT controller 1. The CRT controller 1 controls the display data VD in the reflex memory 5 to be sequentially transferred to the CRT. As a result, the display data VD is displayed on the CRT. In this case, the CPU
will send the current cursor position (that is, address X) to the CRT controller 1. The CRT controller 1 stores an address X indicating the cursor position in the register 1a.

Then, CRT controller 1 registers 1
Address X in a is output to, for example, the divider 22 of the CPU. In this divider 22, for example, "X/
80". At this time, "80"
For example, when there are 80 characters/line on printing paper. The divider 22 outputs the calculation result, quotient Q, to the arithmetic unit 23 and outputs the remainder R to the arithmetic unit 24. The arithmetic unit 23 performs arithmetic processing of, for example, "Q×b+y ₀ ". The arithmetic unit 24 performs, for example, arithmetic processing of "Rxa+x ₀ ". Here, as shown in Figure 3, a and b are the pitches (in mm, for example) of the printed characters in the column and row directions, respectively, and x ₀ and y ₀ are the distances from the left edge of the printing paper to the printing start character, respectively. The distance (in mm) and the distance from the top edge to the print start character (in mm). In this way, the arithmetic units 23 and 24 convert the cursor position (address X) into data indicating the printing position on the printing paper.
It is converted into PD and output to the latch circuit 25. This print position data PD is stored in the memory 20 according to the address PA. This address PA is
Output from address selector 4 and display data VD
This is the same as the address for the reflex memory 5 that stores .

By the way, the AND circuit 26 outputs the address PA in response to the control signal G1. This signal G1 is output from the AND circuit 21 when both the signals E1 and E2 are "1". In this case, the address A and the address B (the addresses on the screen indicated by 30 in FIG. 2) output from the address selector 4 are "A≧B", and the address A and the address C (the address shown in FIG. When the address on the screen indicated by 31) satisfies both conditions of "A≦C", both signals E1 and E2 become "1".
The print position data PD is then sent from the memory 20 to the data selector 7. This data selector 7 selects data PD in response to a select signal S from an AND circuit 8 and outputs it to a character generator 9 . Display control for the normal CRT is performed below. In this case, the select signal S
For example, when the operator operates a specific function key (for insert printing) on the keyboard, the signal PI is output from the CRT controller 1.
It will be output according to this signal PI.

In this way, in this invention, the position of the cursor 32 as shown in FIG. 2 is converted into printing position data PD on the printing paper (FIG. can be displayed. In this case, a portion 33 on the screen is a portion that normally displays pages, lines, etc. necessary for document creation. On the other hand, for example, the operator
By operating a specific function key as described above, the display of pages, lines, etc. is converted to the display at the cursor position. In FIG. 2, the position of the cursor 32 on the screen 33 indicates that the distance from the left edge of the paper is 60 mm and the distance from the top edge of the paper is 60 mm.

In the above embodiment, for example, a case was described in which a CRT was used to display a document page by page, but this is not limited to a display device using a liquid crystal display or the like that displays several lines. The location can be displayed.

〔Effect of the invention〕

As detailed above, according to the present invention, in a document creation device, etc., the printing position on the printing paper is automatically calculated and displayed on the display screen with respect to the current cursor position displayed on the display screen. can be displayed. Therefore, when printing characters by inserting them into an existing document, you can check the print position from the cursor position with a simple key operation.
Insert characters can be printed reliably and easily. This makes it possible to reduce the burden on the operator in document preparation, and also to save on printing paper since trial printing and the like are no longer necessary. That is, according to the present invention, it is possible to obtain the effect that the efficiency of document creation can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a print position display system according to an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of a CRT screen for explaining the circuit operation of FIG. 1, and FIG. 2 is a diagram showing the configuration of a printing paper for explaining the circuit operation of FIG. 1. FIG. 1... CRT controller, 20... Print position memory, 22... Divider, 23, 24... Arithmetic unit, 2
7, 28... Comparator.

Claims (1)

[Claims] 1. In an information processing system, a cursor position storage means for storing data indicating a cursor position on a display device, a calculation means for calculating data indicating a print position on a printing paper based on the data indicating the cursor position, and the calculation means 1. A printing position display method, comprising printing position display means for displaying data indicating the printing position calculated by the means on the display device.