JPS5891492A - Control system of picture display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control method for an image display device having a plurality of display areas (multi-windows), and particularly to displaying document image information such as diagrams, seal impressions, maps, and forms. suitable for

A picture connected to a computer! Bitmap displays are commonly used as display devices.

Bitmap is also called display memory.
This is a memory that stores display data at each grid point of a two-dimensional drawing. By dividing the display screen of the bitmap display into several areas (referred to as windows), a plurality of image data can be displayed simultaneously and each can be controlled independently. This is called a multi-window display, and has the advantage of making it easy to search and compare and match several types of image data.

The concept of multi-window display is known and has several practical examples. However, most of them are in the literature J, M,
MCCrossion, et al, “A ti
me-sharing display term
inal sessionmanager,”pp
, 260-274. IBM 5yst*J't
, Vol. 17, A 3, 1978, and is related to a so-called character display, and is intended for displaying encoded character data such as alphanumeric characters.

As another form of multi-window display, "multiple graphic display capacity" has been reported (Japanese Patent Publication No. 75225/1983). This device divides one screen's worth of display data into blocks and connects these blocks with each other in a chain, making it possible to edit the display data and also to control how many pieces of display data can be displayed in each block. Rotate, shift.

Or it can be scaled. However, the data handled is graphical data such as straight lines and nine circular arcs.

The 30th category includes a multi-window display of the artist data. As an example, a "dual screen television" that displays two programs at the same time is known (Nikkei Electronics, [) 127-132゜1977.2.26)
. Two-screen televisions perform screen composition processing by controlling the timing of video signals, and do not have the ability to interactively search and scroll image data, create, delete, move, change the size of windows, etc.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for freely interactively changing the position and size of each window, changing the overlapping state of both windows, and deleting and creating windows in a multi-window display device. The purpose of this invention is to provide control method 1.

Another object of the present invention is to provide a control method for independently scrolling vertically or horizontally for each window and cutting out data in an arbitrary rectangular area from the image data and displaying it in each window. It is in.

FIG. 1 explains the concept of multi-window display according to the present invention. In the example shown in FIG. 1, there are two windows W, , W, on the screen of the image display device, and in the other window there is an image re a s or an image gJb.
Part of the data (the data in the rectangular area indicated by the broken line) is displayed.

FIG. 2 explains a specific example of the functions realized by the present invention.

The change from Q) to (2) in FIG. 2 indicates a multi-window scrolling function. That is, data of an arbitrary rectangular area can be cut out from the image flaw data a and b and displayed in the windows W, , W, respectively.

According to the present invention, vertical and horizontal scrolling can be performed independently for each window.

The change from (2) to (3) in FIG. 2 indicates the function of arbitrarily changing the position of each window W,, W, on the display screen.

The change from (3) to (4) in FIG. 2 corresponds to each screen W1. This shows a function to arbitrarily change the size of W.

The change from (4) to (5) in Figure 2 is that both windows W
1. This shows a function to arbitrarily change the overlapping state of W. That is, in (4), window W is located above Wl, but in (5), window W1 is located above W.

The change from (5) to (6) in FIG. 2 indicates the function of arbitrarily deleting and creating windows on the display screen, that is, in the screen of (6), window W is deleted,
Another new window W, . . . W4 has been created.

The present invention provides a control system for realizing these functions, and will be explained in detail below using embodiments.

An embodiment of the invention is shown in FIG. In the figure, l is an input keyboard for inputting information related to image data, 2 is a memory for storing programs and tables, a processing device such as a blurred microcomputer, 4 is an image input device such as a facsimile, and 5 is a storage for image data. 77 (a device; 6 is a compression and decompression unit that performs redundancy compression or decompression processing of image data;
7 is an image memory for temporarily storing image data;
Reference numeral 8 designates a transfer control unit for controlling data transfer between the image memory and the bitmap refresh memory, and 9 designates the bitmap 1 refresh memory 10i1 of the display as an image display device. The functions of each device are as follows.

Picture gI! The image data to be displayed on the display device is input from input keyboard 1.
, and the file device 6 is searched for the corresponding image data. Image data is stored in the file device 5 in advance. Image data to be stored is input from the image input device 4, redundantly compressed by the compression/decompression unit 6, and then sent to the file device 5 for storage. In order to manage the data stored in the file device 5, two file management tables are placed on the main memory 2. As shown in Figure 4 (A), the file management table 2 indicates the search key for each image data (image data master storage address, image size, data length, etc.), and these management information , is created by the processing device 3 based on instructions from the input keyboard l.The image display device 10 displays an image by dividing it into several rectangular areas called windows, and the attributes of each window are stored in the main memory. It is defined in the screen management table 2B above.The screen management table 2B, as shown in FIG. For example, when displaying the image m in the window L, each item of the screen management table 2B is as shown in FIG.

In the figure, X+ and Yt are the positions of window I and Wl.

Hl represents the size of window i, Ull@Vm represents the cutting position of image m, and 8 III % Tll represents the size of image ram.

Example command to perform multi-window display?
: Shown in Figure 6. These commands are input from the input keyboard 1, and are decoded and executed by the program of the processing device 3. The procedure of the program executed by the processing device 3 is shown in FIG. In the figure, 100 is command money import from input key-1,
The process 200 for decoding this corresponds to each command,
A process 300 for updating the contents of the screen management table is a process for displaying predetermined h-bond data in a predetermined window by referring to the screen management table and the file management table.

The processing contents of this program will be explained below for each of the three cloaks.

[B] Creating a window (CREATE command) 1) Input and decipher the command (100) Position on the screen (horizontal) of the window to be created.

The following data is input on the input keyboard: height), width, height], and the processing device takes in these data.

11) Screen management table update (200) The details of the process 200 regarding window generation are as shown in FIG. 8.

First, in 210A, the window counter (WC), which indicates the number of windows generated on the screen, is incremented by one.

Since a limit is placed on the number of windows that can be registered in the screen management table 2B, this condition is checked in 210B.

If the WCO value exceeds this upper limit, the screen management table 2B will overflow, so error processing such as outputting a warning message to the display will be performed in 210E.
Do it with If overflow does not occur, there is an unused window on the screen management, so search for it using 't210c'.

Flags on the screen management table indicate the usage status of each window. If one of the empty numbers of unused windows is i (that is, 7 lags Fi"0), a process 21.0 In is executed to generate a new window i and register necessary data in the screen management table. In other words, the data specified by the input keyboard (window position and size) is converted into the attributes of window i ('Xs, Y+, W+, H+).
Register it in the screen management table as . "Level" on the screen management table indicates the vertical relationship of overlapping windows on one screen, and if a window with a large level overlaps a window with a small level,
It is defined as something that is displayed over the top.

A newly created window shall have the highest level among the existing windows.

For the above new window i, the level Ll is determined by L=WC-1. For example, if there are no windows other than window i, WC=1 and %L
Let l=0. If there is one window other than window i, h, wc = 2, and % Ls = 1. The reason for determining the levels in this way is to facilitate processing of commands (FLOAT and 5INK) that change the overlap between windows, as will be described later. At the time window i is generated, the image data to be displayed in this window is not specified, but it is necessary to clearly indicate that the window has been generated.

Therefore, in a newly generated window, image data of a specific pattern (for example, all white, all black, or a grid pattern) is displayed, and the image data for the window is displayed on the screen management table. data name (
DI)t" is registered. After completing the above registration process, the flag FA'el of window i in the screen management table is
By setting it to , it indicates that window i has been generated.

11i) Display of image data (300) Image data other than the newly generated window i is stored on the refresh memory.

Also, the level of window i is greater than the level of any other window. Therefore, it is only necessary to search the image file device for predetermined image data for the window i and transfer it to the refresh memory. The name of image data to be displayed in window i is shown in the screen management table, and the storage address of the image data, image size (width, height), and data length are shown in the file management table. The image data is redundantly compressed and stored in the file storage f5. First, the compression and decompression unit 6 decompresses the data, and then the data is transferred to the image memory 7. Next, only data in a predetermined rectangular area shown in the screen management table 2B is cut out from the image data on the image memory and transferred to a predetermined area in the refresh memory.

The transfer control unit 8 controls this cutting process. If a method already invented by the applicant (Utility Model Registration Application No. 55-85178) is used as this transfer control section, the cutting processing can be sped up. The principle of its operation is described in detail in the above application;
I will omit the explanation here.

[Mouth] Deleting a window (DELETE command) ;) Inputting and decoding the command (100) - Indicate the number of the window to be deleted using the input keyboard, and the processing device captures it. Let the window number be j.

+1) Update screen management table @(2oo) Process 20
If the contents of 0 are expanded in more detail regarding deletion of the window, the result will be as shown in FIG.

First, at 220λ, the value of window color (WC)
Reduce by tl. Next, the flag F 1220B of window j to be deleted is reset to zero and released as number j + unused window number. Since window j has been deleted, it is necessary to update the levels of other windows that have higher levels than Lj. 22
0C indicates this process, and the level is updated as Lk4-Lk-1 for each window k that satisfies Lh)Ll.

i+D Display of surface image data (300) For all the line windows registered in the screen management table, the specified image data is searched from the image file device and displayed on the display. The process for each window is the same as the process in [B] above, so the explanation will be omitted.Here, the flag for window j in the screen management table has been reset, so
In executing process 300, window jFi is ignored. As a result, window j will be deleted on the display.

[C] Changing the window size (5CALE command) l) Input and decode the command (100) Indicate the relevant window number and the changed size using the input keyboard, and the processing device captures it. The window number is j, and the size after change is 1 (horizontal).

Let it be i (vertical).

Update of 1-screen management table (200) Data W1 and HJ'k of the window j in the screen management table are changed to gold j #QJ, respectively.

Other data on the screen management table remains unchanged.

jii) Display 1 data d (300) The process 300 is similar to the window deletion process described above,
Executes sequentially starting from the window with the lowest level.

[2] Moving the window (MOVE command) l)
Inputting and decoding commands (100) The number of the window to be moved and the positional coordinates of the destination on the screen are specified using the input keyboard, and the processing device captures them. Let the window number be j,
What are the coordinates of the destination? , (horizontal), ↑1 (vertical).

11) Update the screen management table (200) Change the data of the window j and XJ and YJ to X, , fl, respectively, in the screen management table.

111) The painting data display (300) process 300 is as follows:
Since this process is similar to the window deletion process described above, the explanation will be omitted.

[E] Changing window overlap (FLOAT command) l) Command input and decoding (100) Window j2
When displaying over window i, input the corresponding window number j(!:f with the input keyboard and input it to the processing device. However, at this time, the position coordinates (horizontal, horizontal, Vertical) is not changed.

(2) Update of screen management table (200) Change the rep kf of each window registered in the screen management table as follows.

(2) For each window k that satisfies the condition L1+1≦Lk≦LI, Lh=Lh-1.

■ For window j, set L1←[level before change of l].

■ Other windows remain unchanged.

iii) The display (300) of one-person data processing 300 is as follows:
This process is similar to the window deletion process described above. However, this need only be done for window j and windows with higher levels.

[To] Changing window overlap (8I NK command) 1) Command input and deciphering, (100) Window j
When displaying the window I under the window I, the corresponding window numbers j and l are specified using the input keyboard, and the processing device captures the window numbers j and l. However, at this time, the position coordinates (horizontal, vertical) where each window should be displayed are not changed.

II) Updating the screen management table (200) The level of each window registered in the screen management table is changed as follows.

■ Each window k that satisfies the condition Ls≦Lk≦L, -1
, it is assumed that Lk+-Lk+1.

■ For window j, set Lj←[level before change of i].

■ Other windows remain unchanged.

+1+) The painting data display (300) process 300 is as follows:
This process is similar to the window deletion process described above. However, this may be done for windows having a higher level than window j.

[G] Searching and displaying 1-pu data (FIND command) 1) Input and decoding commands (100) From 1-pu data m, find the position (U,, V,) of the nine rectangular areas to be cut out, and The number j of the window to be displayed is indicated on the input keyboard, and the processing device captures this number.

(Nishiki) Update the screen management table IFr (200) Among the registered contents related to the window j on the screen management table, change the image data name and cropping position (abscissa and ordinate) to the values specified using the input keyboard. m.

Change to U,,V,.

111) Image data display (300) processing 300F
i This is the same as the window deletion process described above. however,
This need only be done for window j1 and windows with higher levels.

()) mLfllf-1 (D, t, l roll < 8C
FLOLL command, )! ] Manual power and deciphering of commands (100) Scroll is nothing but a process of changing the cutting position of image data to be displayed. The number of the window to be scrolled and the new cutout position are indicated on the input keyboard, and the processing device captures these.

Let the number of the window be j and the new cutting position be (
(horizontal) and e (vertical). Here, m indicates the name of the image data displayed in window j.

11) Update of screen management table (200) Among the registered contents regarding the window j on the screen management table,
Change the cutting position to e fL (the value specified by the input keyboard).

11i) Image data display (300) processing 300 is similar to the window deletion processing described above. however,
This need only be done for window j1 and windows with higher levels.

[H] Image data exchange (EXCHANGE near vnd) l) Command input and decoding (100) This command performs processing to exchange image data to be displayed between two windows. number i of the two windows to be exchanged
, j on the input keyboard, and the processing device captures this.

I) Update the screen management table (200) Update the image data name,
And, the registered contents of the 1st compensation cutout position are replaced.

111) Displaying image data (300) Similar to the window deletion process described above, image data is displayed in order from the window with the lowest level. However, the level value −
It is only necessary to perform this for windows that are equal to or larger than (Ls, LJ).

As explained above, according to the present invention, by dividing the display screen into several windows, multiple image data can be displayed simultaneously, and each image can be searched, scrolled, moved, etc. independently. , it is possible to improve the operability of searching and comparing image data.

[Brief explanation of drawings]

Figures 1 and 2 are conceptual explanatory diagrams of multi-window display.
FIG. 3 is a block diagram of an embodiment of the present invention, FIG. 4 is a diagram of the configuration of a file management table and a screen management table,
Figure 5 is an explanatory diagram of the items in the screen management table, Figure 6 is an example of a command, Figure 7 is a flowchart of a program executed by the processing device, and Figure 8 shows the procedure for updating the screen management table in the CREATE command. Flowchart FIG. 9 is a flowchart showing the procedure for updating the screen management table in the DELETE command. 1... Input keyboard, 2... Memory, 2A... File management table, 2B... Screen management table, 3...
- Processing device, 4... Image input device, 5... File device, 6... Compression/decompression section, 7... Image memory, 8.
...Transfer control unit, 9...Refresh memo 1c 10
...Image display device. Me 1 Figure 5 n ¥i2 [2] 'vJ3 Figure 4 (2) (A> --- (B) Figure 5 ηt x 6 Figure %'711Zl Figure δ

Claims (1)

[Claims] 1. A file device for storing a plurality of pieces of image data, and cutting out data of a plurality of arbitrary partial areas of the image data,
An image display device for displaying this information in multiple windows on a display screen, a file management table for managing information including image data names and storage addresses stored in the file device, and a display screen for displaying the above windows. position,
A memory that stores a screen management table that manages information including the size and cropping position of the image, and commands related to the position and size of the window on the display screen, the cropping position of the image data to be displayed in the window, etc. and an input device for inputting data, which is connected to the memory, input device, and file device, and according to input commands and data, reads image data from the file device and displays a desired cropped image on the window of the image display device. It has a processing device that performs display control, and a first step of taking commands from the input device and deciphering them, and updating the contents of the screen management table in accordance with the contents of each command. A control method for an image display device, comprising: a second step; and a third step of displaying predetermined image data in a predetermined window by referring to the screen management table and the file management table. 2. In the control method in item 1, a command for generating a window in the first step,
Input data specifying the position and size of the window to be generated on the screen, and in the second step, determine whether the number of windows to be generated is within a predetermined value, and If so, the input data is registered in the screen management table, and the third step is to display a predetermined image retrieved from the file device in a window at a position and size specified by the input data. Control method for image display device. 3. In the control method described in item 1, in the first step, a command to delete a window and the number of that window are input, and in the second step, the command to delete a window is entered, and in the second step, the , the flag bit corresponding to the input window number is reset, and in the third step, predetermined image data is generated only for those windows for which the flag bit is set for all windows registered in the screen management table. A control method for an image display device characterized by searching from a file device and displaying it. 4. In the control method described in item 1, in the first step, a rounding command to change the window size, the window number, and data indicating the changed window size are input, and in the second step Then, change the data regarding the size of the window in the screen management table to the data input above, and in the third step, refer to the screen management table and file management table to change the specified image data to the changed size. A control method for an image display device whose entire feature is display in a window. 5. In the control method described in item 1, in the first step, a command to move the window position, data indicating the window number to be moved and the destination position are input, and in the second step, screen management is performed. The data regarding the position of the window in the table is changed to the input data, and in the third step, the predetermined image data is displayed in the window at the changed position by referring to the screen management table and the file management table. A control method for an image display device, characterized in that: 6. In the control method described in Section 1, in the first step, a command to change the overlapping state of multiple windows and data indicating the window number to be changed are input, and in the second step, the screen management table is input. Among the level items provided in the screen management table, the one corresponding to the input window number is changed according to the input data, and in the third step, the images are displayed in the order shown in the level item of the screen management table. 1. A control method for an image display device characterized by displaying image data in a predetermined window. 7. In the control method described in item 1, the first step includes a command for searching and displaying image data, a position of a rectangular area to be cropped out of the image data, and a command to display the cropped image. The window number is input, and in the second step, among the registered contents related to the window in the screen management table, the data indicating the image data name and cropping position is changed according to the input data, and in the third step, the changed data is changed. A control method for an image display device characterized by displaying image cutout data in a designated window. 8. In the control method described in item 1, in the first step, a command to instruct scrolling, data indicating the number of the window to be scrolled and the new cropping position of the image data are input, and in the second step, the screen management Image display characterized by changing data indicating a cropping position among the registered contents regarding the window in the table according to the input data, and in a third step displaying image data of the changed cropping position in the specified window. Device control method. 9. In the control method described in item 1, in the first step, a command for exchanging image data to be displayed between multiple windows and data indicating the window number to be exchanged are input, and in the second step, Then, the registered contents of the image data and its cropping position for the window in the screen management table are replaced, and in the third step, the image data is displayed in the window by referring to the changed screen management table and file management table. A control method for an image display device, characterized in that: