JPH01161394A - Method of making hard copy of multi-window picture - Google Patents

Abstract

PURPOSE: To print a color multiwindow screen in colors without its background color by using print data obtained by performing raster operation based upon an arithmetic expression for a specified rectangular area in each display area of a frame memory. CONSTITUTION: A control part 1 divides each window into display rectangular areas 20-22 according to management information from a memory 10, indicates the display rectangular areas 20-22 and the arithmetic expression to a drawing circuit 4, and stores the print data obtained by performing the raster operation based upon the arithmetic expression for the specified rectangular area of respective display areas of the frame memory 2, in printer expansion areas 23-26 of the frame memory 2, thereby printing the contents of the printer expansion areas 23-26 by a color print part 5. Consequently, color prints having no background color are easily obtained for every window of the multiwindow screen.

Description

[Detailed description of the invention] [Table of contents] Overview Industrial field of application Prior art (Figure 10) Problems to be solved by the invention Means for solving the problem (Figure 1) Working examples ( a) Explanation of the configuration of one embodiment (Figures 2 and 3) (
'b) Explanation of the operation of one embodiment (Fig. 4, Fig. 5, Fig. 7, Fig. 8) (C) Explanation of another embodiment (Fig. 9) Effect of the invention [Summary] Multi-window Concerning a method for hard copying multi-window screens to print color screens.

The purpose is to easily perform color printing by removing the background color of each window on a multi-window screen.

A control unit that has a memory that stores management information for each window including background color information, a frame memory that has a plurality of display areas in which display data of each color is expanded for color display, and a A multi-window system comprising: a drawing circuit that performs raster calculations using arithmetic expressions and develops data in the frame memory; and a color display section that displays the contents of the plurality of display areas and displays the plurality of windows on the screen in color. In the step, the control unit divides each window into display rectangular areas from the management information of the memory, and instructs the display rectangular area and the calculation formula to the drawing circuit;
The specified rectangular area of each display area of the frame memory is subjected to raster calculation using the calculation formula, and the print data obtained is stored in the printer expansion area of the frame memory, and the contents of the printer expansion area are printed in color by the color printing unit. .

[Industrial application field]

The present invention relates to a multi-window screen hard copy method for color printing a multi-window color screen.

In recent years, multi-window systems have been used in which the contents of a plurality of jobs are displayed as windows on a display unit in order to improve the processing efficiency of a CPU and job processing.

In a multi-window system, each display window can be assigned an arbitrary background color.

Therefore, in a hard copy of a multi-window screen, it is desired that the background color can be handled arbitrarily.

[Conventional technology]

FIG. 10 is an explanatory diagram of the multi-window system.

The control unit 1 is composed of a microprocessor (MPU), etc., and has window management information such as the position of each window and the display order of the background color wheel 1. The frame memory 2 stores nine primary colors of the display unit 3 ( It has display areas 20, 21, and 22 for storing display data of green, red, and blue.

The control unit 1 controls the display areas 20, 21, .
22, windows 0 to 3 are displayed in a superimposed manner on the color display section 3 with different background colors, as shown in the figure.

One way to make a color hard copy of such a multi-window screen is to
The conventional method is to recognize only the characters on the screen as a code and make a pseudo hard copy of only one character.2) The frame memory has an area the same size as the display area, and each dot is in this area whether it is the background or not. Write the dot information indicating the
A method of making a hard copy using this is known.

[Problem that the invention seeks to solve]

However, the former conventional method has the problem that although it is possible to remove unnecessary background colors, it is not possible to make a hard copy of information such as figures other than single character information, and it is essentially a hard copy of the multi-window screen. The only option was to copy a portion of the image with a limited print area.

On the other hand, with the latter conventional method, it is possible to whiten out the background color, but additional frame memory must be used just to determine whether each dot is in the background, and one normal display There is a problem in that when doing this, it is necessary to always write dot information in a frame for background recognition that has nothing to do with display.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for hard copying a multi-window screen by which color printing can be easily performed by removing the background color of each window of the multi-window screen.

[Means for solving problems] FIG. 1 is a diagram explaining the principle of the present invention.

In the 11th prisoner, 4 is a drawing circuit that performs raster calculations on a specified area of frame memory 2 using a specified calculation formula and develops data in frame memory 2, and 5 is a color printing section. shi, those that perform color printing;
10 is memory.

23 to 26 are storage areas for storing management information for each window including background color information.

It is provided in the frame memory 2 and stores mark 11 data developed by the drawing circuit 4.

As shown in FIGS. 1B and 1C, the present invention divides each window WO to W3 into display rectangular areas from the management information in the memory 10, and displays one display rectangular area and an arithmetic expression in the drawing circuit 4.
to display each display area 20 to 22 of the frame memory 2.
The designated rectangular area is subjected to a Lasque calculation using an arithmetic expression to obtain print data, and the print data is stored in the printer expansion area 23 of the frame memory 2.
Store it in 26.

The contents of the printer development areas 23 to 26 are printed in color by the color printing section 5.

[For production]

The present invention converts the display data of one display area 20 to 22 into color print data excluding the background color.For this purpose, a drawing circuit 4 for developing one display data is used, and two
This is done by star calculation, eliminating the need for extra hardware, and in order to have the drawing circuit 4 create print data, each window is divided into display rectangular areas, an arithmetic expression is specified, and each rectangular area is Display area 20.2
Color (black, cyan C, magenta M, yellow Y) print data is created by performing a two-star operation on 1.22 and removing the background color.

〔Example〕

(a) Explanation of the configuration of one embodiment FIG. 2 is a configuration diagram of one embodiment of the present invention, and FIG. 3 is a diagram of the table configuration of FIG. 2.

In the figure, the same components as those shown in FIGS. 1 and 10 are indicated by the same symbols S, and 3a is a display control circuit (CRT).
C) 1 controls the display of the display unit 3; 5a is a printer interface circuit; 6 is a keyboard;
A keyboard interface circuit 6a for inputting commands, data, etc. is used to control the interface of the keyboard 6.

11 is a system processor (hereinafter referred to as 5CPU), which controls the entire system and controls the IO processor and printer, which will be described later; 12 is an I/O processor;
4fi, 5 CPU with O processor (hereinafter referred to as IOP)
According to the instructions in II, the process is 0, that is, the drawing circuit 499 is displayed 3.
13 is a main storage fi, which forms the main memory of the 8 CPU 11 and is provided with buffers 13a and 13b for transfer to the printer; 14 is a DMAC (Direct Memo);
ry AccessController) performs direct memory access control, 15 is system path sb, 5 CPUI 1. Main storage (M
S)13. DMAC14, 7s chair circuit 5a,
The one that connects l0P12, 16 has an IO bus, and the 0P12. Memory 10. Drawing circuit 4. frame memory 2
．． CRTC3a, -1r--Board 6f: These are connected faf.

The window management information is stored in the window management table 10a.
, a window table 10b, and a configuration diagram of a one-display rectangular table.

The window management table 10a, as shown in Figure 31, is for managing all windows existing in the system, as shown in Figure 10.

In addition to windows that are displayed on the screen such as windows 0, 1, and 2.3, there are also windows that are not displayed.
It stores pointers to all window tables.

As shown in FIG. 3 (5), the window table 10b contains information for each window, including the window ID, window position (X and Y coordinates of the upper left corner and lower right corner), the background color identifier for that window, and the window Contains a pointer to a list of each actually displayed rectangular portion (display rectangle) within the region.

9If the pointer to the display rectangle list is NULL,
Indicates that the window area is not displayed on the screen at all.

The display rectangle table IOC displays the pointer to the next display rectangle list as shown in Figure 3, and the X and Y points in the upper left corner of the display rectangle.
Coordinates, and stores the X and Y coordinates of the lower right corner.

Therefore, the window j in FIG. 3(q) is composed of a display rectangle jO and a display rectangle j1, and the relationship between the window table 10b and the display rectangle table 10e is as shown in FIG. 3(B).

10d is a display rectangle management table which sequentially stores the display rectangles of each window displayed for hard copying.

Φ) Description of operation of one embodiment FIG. 4 is a processing flow diagram of an embodiment of the present invention.

FIGS. 5 and 6 are explanatory views of the operation of an embodiment of the present invention.

FIGS. 7 and 8 are flowcharts of the expansion processing according to an embodiment of the present invention.

■ First, when the operator manually presses the hard copy key from the keyboard 6, the l0P12 is sent via the IO bus 6.
It is accepted to 5 CPUll via the system path 15.

As a result, the 5 CPU 1 is given a hard copy instruction to the IO and P12 via the system bus 5. 10P12 is responsible for all the window management units 10 managed by the window management unit 10a in the memory 10.
b, and searches for a window table 10b that has a display area in which the pointer to the display rectangle list of the window table 10b is not NULL. On the screen shown in Figure 10,
Windows 0-3.

Next, the l0P12 takes out the pointers of all the display rectangle tables IOC existing in the searched window table 10b and stores them in the display rectangle management table 10d along with the background color.

Therefore, as shown in FIGS. 5 and 6 (5), each window 0
~3 is divided by the display rectangle rectoo~33.

A display rectangle pointer and background color are created in the management table 10d as shown in FIG. 6(B).

Next, l0P12 is this display rectangle management table 10d.
Sort in descending order of the Y coordinate of the upper left corner of the display rectangle, and
Management table 10dt-41 as shown on the right side of figure (b)
: Ask back.

Therefore, the 9th display screen is logically a collection of display rectangles.
This results in a reconstruction as shown in Figure (5).

■ Use this to perform hard copy expansion processing.

Here, 9 display branes 20 to z2 are G (green).

R (red), B (blue), and the basic colors of the printer 5 (
ribbon) to K (black), C (cyan), M (magenta)
, Y (yellow) as the two display colors.

If the eight colors are black, green, red, yellow, blue, pink, light blue, and white, and the printer colors are eight, the correspondence is shown in the table below.

Table: Relationship between display colors and printer ribbons, and printer development areas K, C', M,
23, 24, 25, 26 for Y are prepared in the frame memory 2.

Next, a rask calculation formula for removing the background color is calculated.

The table on the left side of FIG. 7 shows the display areas 20 (G), 21 (R), 22 (
This is the relationship between the data of the dots at the same position in B).

On the other hand, when the background color of a certain display rectangle A is blue, the printing color of the 2nd display color "blue" becomes "without white)".
The value of ribbon C and ribbon M in the above-mentioned relational table is "0".

Therefore, when removing the background color "blue", C
, M, and Y are shown in FIG.

In Figure 7, C, M, and Y are expressed as functions of G, R, and B.

Finally, the content of the raster operation for 1 display rectangle A is determined as 0. Equation (2) requires 5 operations for K and 1 operation for C9.
This indicates that one operation is required for M and two operations are required for Y.

Similarly, the raster calculation contents when the background color is black are as follows.

becomes.

In this way, the raster calculation formula (content) for each display rectangle is determined.

(2) l0P12 sets this display rectangular area and raster arithmetic expression (function) in the drawing circuit 4.

As is well known, the drawing circuit 4 provides coordinates of an arbitrary rectangle on the frame memory 2 as parameters.

Furthermore, when raster operation contents are given, the specified raster operation is executed between arbitrary rectangles, and the result is stored in an arbitrary position on the frame memory 2 of the same size and shape.

Therefore, as shown in FIG. 8, the drawing circuit 4 performs the designated raster calculation on the designated rectangular area of the display areas 20-21 on the frame memory 2, and stores the results in the printer development areas 23-26.

■ The l0P12 causes the drawing circuit 4 to execute raster operations for each display rectangle, and when the raster operation is completed for all display rectangles, the l0P12 transfers the contents of the printer expansion areas 23 to 26 of the frame memory 2 to the transfer buffer 13a of the main storage 13. , 13b.

10P12 issues a transfer request interrupt to 8CPU11, so 5CPU11 uses the printer driver (program)
is activated, and the data in the two transfer buffers 13a and 13b are alternately sent to the printer 5 via the DMAC 14, and the printer 5 is caused to perform color printing.

If the color printer 5 is a color printer that prints every 9 columns without printing every line (row), the print data may be converted vertically and horizontally as shown in FIG. 8 when transferred to the main storage 13.

In this way, a hard copy fully compatible with multi-window screens can be realized.

In addition, by selecting the raster operation, you can easily decide whether or not to print the background color for each window. For windows other than black, the number of 2-star calculations can be reduced by setting white to white (in FIG. 7, nine characters of one display color white are printed in black).

Additionally, you can also specify a hard copy for each window.

(C) Description of other embodiments In the embodiments described above, the drawing circuit 4 is used to perform raster calculations for each display rectangle, but as shown in FIG. ) If the number of rasks in the y direction of the area is smaller than the number of rasters in the y direction of the display rectangle, the display rectangle is divided and processed according to the number of rasters in the expansion area, and after the first expansion, it is transferred and the second expansion is performed. You can do it like this.

Also, as shown in FIG. 6(b), the 9 display rectangle management table is sorted in ascending order of the Y coordinate of the upper left corner.

This is because in a system that does not have one screen's worth of work area for expansion processing in the frame memory 2, it is necessary to expand and print in order from the top merge 7 line of the print area to the last line of the page. Therefore, in a system that has a work memory (area) for one display screen, there is no need to perform the sorting shown in FIG. Just write in the area.

Although the present invention has been described above with reference to embodiments, the present invention can be modified in various ways according to the gist of the present invention.

These are not excluded from the present invention.

〔Effect of the invention〕

As explained above, according to the present invention, a color multi-window screen can be printed in color without the background color, and this can be easily realized without adding any hardware. A hard copy of the system can be easily made.

[Brief explanation of the drawing]

FIG. 1 is a diagram explaining the principle of the present invention. FIG. 2 is a configuration diagram of an embodiment of the present invention. FIG. 3 is a table configuration diagram of an embodiment of the present invention. FIG. 4 is a processing flow diagram of an embodiment of the present invention. FIGS. 5 and 6 are explanatory views of the operation of an embodiment of the present invention. FIG. 7 and FIG. 8 are explanatory diagrams of expansion processing in an embodiment of the present invention. FIG. 9 is an explanatory diagram of another embodiment of the present invention. FIG. 10 is an explanatory diagram of the prior art. In the figure, 1...control unit. 2...Frame memory. 3...Display section. 4...Drawing circuit. 5...Color printing department. 10...Memory. 20-22...display area. 23-26...Printer development area. Original g theory of the present invention Fig. 1 Mi Bow (A) (Cn Issou Kousuke Sete 1 Tef) Complementary element dJ'1nttout / Mttdout 2 -J Kotsuba Giant Suge 1f Kai 乍tlfflll' 1ffl
Figure 5 (A) Figure 6 '1 Figure Ichibukaku p1 explanatory diagram of open air Figure 8

Claims (1)

[Claims] A control unit (1) having a memory (10) for storing management information of each window including background color information, and a plurality of display areas (20) in which display data of each color is developed for color display.
-22); a drawing circuit (4) that performs a raster operation on a specified area using a specified calculation formula and develops data in the frame memory (2); A color display section (3) displays the contents of the display area (20 to 22) and displays multiple windows on the screen in color.
), the control unit (1) divides each window into display rectangular areas from the management information of the memory (10), and transfers the display rectangular areas and calculation formulas to the drawing circuit (4). instruct the
The print data obtained by performing raster calculation on the specified rectangular area of each display area (20 to 22) of the frame memory (2) using the calculation formula is stored in the printer development area (23 to 26) of the frame memory (2). A hard copy method for a multi-window screen, comprising: printing the contents of the printer development area (23 to 26) in color in a color printing section (5).