JPS63231612A - Display control system for automatic repetitive keying - Google Patents

Abstract

PURPOSE:To prevent undesired write on a screen and cursor movement by displaying a character or the like corresponding to a key on a display device at the time of continuously depressing this key as if the key were repeatedly scanned many times during the depression and suppressing the automatic repetitive keying function if the display position is in an end of the display screen. CONSTITUTION:When a key, for example, a cursor move key on a keyboard 10 is continuously depressed, the character displayed at the first time of depression is displayed. When a flag control means 15 detects that the cursor move key is still depressed as the result of reoperation, a display control means 18 updates a cursor pointer 16 and displays the character because a flag register 14 is turned on. If the cursor position is in the right end, the flag register 14 is turned off by reset. Thereafter, display is not indicated to the display control means 18 and the cursor is not moved because the flag register 14 is turned off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for displaying characters on a display screen using a keyboard of a display terminal of a computer system, a word processor, or the like.

[Conventional technology]

In order to improve the operability of the keyboard, the keyboard display is provided with a function in which, when the same key is continuously pressed, the display is controlled as if the key had been pressed again. This kind of function is called an automatic repeat key or a tiebamatic function.

When a key on the keyboard is pressed, characters corresponding to the key are displayed on the display. Predetermined time (
The key press status is checked again after several hundred milliseconds), and if the same key continues to be pressed, the automatic repeat function is activated to repeat the key press at an interval faster than the operator (several tens of milliseconds). ) to display the same character, or to move the cursor or manually enter a blank space.

At this time, no matter where on the screen the cursor position, that is, the character input position, is, exactly the same control is performed.

. Therefore, the same process is being performed one after another from the right end to the left end of the screen.

[Problem that the invention seeks to solve]

In conventional display control systems based on automatic repeat keys, even if the operator attempts to stop at the right edge of the screen, the control ends up continuing all the way to the left edge. Therefore, the operator had to be careful when operating the keyboard, resulting in poor operability.

Furthermore, recent display devices support screens that are wider than the physical screen currently being displayed as logical screens.
Especially if you have a horizontally large logical screen, when the cursor reaches the right edge of the logical screen and advances to the next, the screen wraps and the left edge of the logical screen becomes the physical screen edge. The screen changes. In a display device that performs display control in this way, if you fail to stop the cursor at the right edge when controlling the automatic repeat key as described above, the screen will wrap and switch, and to return to the original state, you simply need to return only the cursor. Not only that, but the screen also has to be wrapped in the opposite direction from the previous one, and this switching of display screens takes more time, which further worsens the operability of the keyboard. There was a problem.

[Means to solve the problem]

FIG. 1 shows a conceptual diagram of the present invention. In Figure 1, 10
is a keyboard, 11 is a control device, 12 is a display,
13 is a key memory which is a key press state holding means, 14 is a flag register which is a flag means, 15 is a flag register control means, 16 is a cursor pointer, 17 is a right end display register, 18 is an automatic repeat key display control means, 19
is the right end reaching detection means.

When the keyboard 10 is operated, the on/off state of the relevant key is directly displayed on the key memory 13 as on/off. The flag control means 15 normally stores the state of the key before scanning in the memory BIM, and monitors changes in the state of the key by scanning and comparing the memory BIM and the key memory 13. And if there is a change in the key press state, indicating an auto-repeat key press,
Control is performed to display the character corresponding to the key at the screen position indicated by the cursor pointer 16, and
A set is made to the flag register 14. If the same key is pressed again in subsequent scanning, the flag register 14 may be turned on, and the automatic repeat display control means 18 is activated to display the display at the position indicated by the cursor pointer 16 on the display device 12. I do. Then, the cursor pointer is updated and compared with the right end register 17 by the right end detection means 19, and if they match, the flag register 14 is reset.

Next, when a new key is operated, the same control as above is repeated again.

[Effect]

Therefore, when the operator continues to press a key on the keyboard 10, for example, a cursor movement key, the character displayed at the time of the first press is displayed.

Then, when the flag control means 16 detects that the cursor movement key is still pressed as a result of the re-operation, since the flag register 14 is on, the display control means 18 updates the cursor pointer 16 and Perform display. As mentioned above, if it is at the rightmost position,
The flag register 14 is reset and turned off. After that, since the flag register 14 is in the OFF state, even if the flag control means issues an automatic repeat instruction, the flag register 14
4 is off, no display instruction is given to the display control means 18, and of course no cursor movement is performed.

As a result, even if you keep pressing the cursor movement key, once the cursor reaches the right edge of the screen, it will not move any further. Of course, if you release your finger and press it again, the cursor will automatically move again.

〔Example〕

FIG. 2 is a display example of a screen to which the present invention is applied, and 21
indicates a cursor, 22 indicates a logical screen, 23 indicates a physical screen before the wrap, and 24 indicates a physical screen after the ramp.

It shows.

If you operate and keep pressing the cursor right movement key while the cursor is at the position of ■, the right edge of the logical screen 22 becomes the right edge of the physical screen 23, and the cursor moves to the right edge of the position of ■. Stop. Then, if you press the cursor right movement key again and keep pressing it, the screen wraps and switches to the physical screen 24, and the cursor 2 at the position of
1 continues moving further to the right.

FIG. 3 shows another embodiment of the invention. This is an example of a case where the keyboard device itself has a typermatic detection function and automatically notifies that a key has been pressed repeatedly. In this case, a register indicating that the Tibermatic operation is in progress is provided in the keyboard device itself, and its mode signal is also notified to the display control section. The display control section has a typermatic end flag. This is a display that is the opposite of the flag in FIG. Every time there is a typermatic instruction, the same control processing as the previous time is performed. That is, if a tiermatic key instruction is given while waiting for a key input, first the tiermatic end flag is turned off and display processing is performed since the tiermatic operation is not being performed. At that point, Tiebamatic is in operation, so check the cursor position, and if it is not at the right edge of the screen, wait for keystrokes again.

If it is at the edge of the screen, turn on the tiebamatic end flag and wait for keystrokes. Then, when a Typermatic instruction is received from the keyboard itself, since the Typermatic is in operation, the status of the Typermatic end flag is checked. If the cursor has reached the edge of the screen in the previous process, the Tibermatic end flag is on, so the next screen display process is not performed and the process waits for key input.

Therefore, until the cursor reaches the edge of the screen, the cursor moves to the right every time there is a tiermatic instruction, but once it reaches the right edge, the tiermatic end flag is on, so from then on As long as it is a typermatic instruction, the processing will not be performed and the cursor will stop at the right end.

Even in the key human power waiting state, once the key press is released, the Tibermatic operation is no longer in progress, so the above operation is performed, that is, the Tibermatic end flag is turned off.

With the above processing, even if the typermatic key is kept pressed, the cursor will stop when it reaches the edge of the screen.

〔Effect of the invention〕

According to the present invention, even if the operator continues to press a key that has a tiebamatic function, the cursor will stop at the edge of the screen, making it possible to improve operability.

In particular, in display control systems where the screen ramps up when the cursor reaches the right edge, returning the cursor position, which occurs when the cursor has moved too far, involves moving the display screen itself, resulting in a relatively slow screen wrap. It is possible to eliminate poor operability such as having to perform the process twice, and the effects of the present invention are even greater.

[Brief explanation of the drawing]

FIG. 1 shows a first embodiment and also explains the concept of the invention, FIG. 2 shows an example of a display screen to which the present invention is applied, and FIG. 3 shows another embodiment of the present invention. In the figure, 10 is an input means, 12 is a display, 1
4 is a flag register 1; 17 is a right end register; 18 is a display control unit; and 19 is a right end detection means. 10l closed diagram 2

Claims (1)

[Claims] In a display control method for an automatic repeat key that performs the same control as when the key is repeatedly operated and displays a display on a display device when the same key is continuously pressed, the automatic repeat key comprises: If it continues to be pressed, it is checked whether the screen position of the display device corresponding to the key is at the edge of the screen (19), and if it is not the edge of the screen, the display corresponding to the key is displayed at the screen position; When the screen edge is reached, a flag indicating the end of automatic repetition is displayed (14).
An automatic repeat key display control method characterized by disabling automatic repeat after reaching the edge of the screen.