JPH1115633A - Cursor controlling method on display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely instruct a processing position by divide-setting a display screen into several screen areas, detecting a screen area where a cursor is displayed and selectively displaying preset cursor image data corresponding to each screen area to always display a cursor image on the screen. SOLUTION: The screen of a display device 3 is four-divided by two columns and two rows to make areas A to D to store the coordinate of each. Among data displayed on the screen, data displayed at the position of a cursor image stored in a cursor position area by the operation of a cursor key or a mouse is stored in a work area. Next, areas displaying the cursor image are discriminated, based on position data of the cursor picture stored in the cursor position area. Then a cursor image corresponding to the area A to D selected from a cursor image data area is accessed and the cursor image is over-written and displayed on a picture from which data is fetched.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cursor display control method for a display device.

[0002]

In various display devices such as a CRT and a liquid crystal display, various data from a computer are displayed in a data display area of the display device and moved by a mouse, a cursor key, or the like. Cursor image is displayed.

As a display control method of a cursor image, when a display position (coordinates) of a cursor image to be moved from a current display position of a cursor image by operation of a mouse or a cursor key is designated, the cursor image is displayed on a screen. Out of various data (including background data), the data corresponding to the position of the designated cursor image to be moved is extracted and temporarily stored in the work area of the storage member. The cursor image is displayed with the data overwritten.

[0004] However, in general, for example, an arrow symbol whose tip is inclined to the upper left is used as a cursor image, but as shown in FIG.
Is positioned at the right edge and the lower edge of the screen, most of the cursor image C is located outside the screen and is in a non-display state, which is equivalent to a disappearing state. Could not be confirmed.

[0005] In particular, an operator who is unfamiliar with the operation of the computer suffers from the problem that the cursor image C is lost or the computer operation cannot be performed smoothly due to the illusion that a computer system error has occurred. Have.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks. The object of the present invention is to always display a cursor image on a screen and to surely indicate a processing position. It is an object of the present invention to provide a cursor display control method in a display device capable of performing the display.

[0007]

Therefore, according to the present invention, a cursor image is displayed on a screen while displaying various data on a screen and temporarily storing data of a cursor display position in a work area. In a display device that superimposes the displayed data, the display screen is divided into a plurality of screen areas, a screen area where a cursor is displayed is detected, and cursor image data set in advance corresponding to each screen area is selected. To display.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is an explanatory diagram showing a screen division state of a display device and a cursor image displayed in each area.

FIG. 2 is an electrical block diagram of the display device.

FIG. 3 is a front view showing a computer system to which a display device is connected.

A display device 3, a keyboard 5 on which cursor keys (not shown) are arranged, and a mouse 7 are connected to the computer body 1, respectively.
Are connected to a system storage medium 11 such as a RAM, a ROM, and a hard disk, and a working storage medium 13 such as a RAM.

The system storage medium 11 stores, in addition to various system data, cursor display control program data shown in a flowchart described later. The work storage medium 13 has a data area 13a, a display data buffer area 13b, a work area 13c, a cursor position area 13d, a screen division data area 13e, and a cursor image data area 13f.

The data area 13a stores various data processed by the computer. Display data buffer area 13
b stores data to be displayed on the display device 3 among the data stored in the data area 13a. The display control method of various data in the display device 3 is executed by a conventionally known method, and the detailed description thereof is omitted. The work area 13c temporarily stores data of a cursor position where a cursor image to be described later is displayed when the cursor is displayed on the screen. The cursor position area 13d stores the display position data of the current cursor image displayed on the screen and the coordinate data of the movement position of the cursor image when the cursor is moved by the mouse and the cursor key. That is, for example, the upper left corner of the screen of the display device 3 is defined as the origin (x0.y0), and the right end of the screen is defined as (xn.y0) (n is an arbitrary integer) from the origin (x0.y0). y0), the lower end of the screen is set to the coordinates of (x0.yn), and the position of the cursor image displayed on the screen is stored as coordinates (x.alpha..y.beta.) (0.ltoreq..alpha..ltoreq.n, 0.ltoreq..beta..ltoreq.n). I do.

The screen division data area 13e stores screen division position data when the cursor image is switched according to the display position of the cursor image on the screen. In the present embodiment, the screen of the display device 3 is divided into four by two columns and two rows, and coordinates (x0.y0) to (xn / 2.y0) to (xn / 2.yn / 2).
) To (x0 · yn / 2) in area A, coordinates (xn / 2 · y0).
) To (xn.y0) to (xn.yn / 2) to (xn / 2.
yn / 2) in area B, and coordinates (x0.yn / 2) to (x0.y).
n) to (xn / 2.yn) to (xn / 2.yn / 2) in region C, and coordinates (xn / 2.yn / 2) to (xn.yn / 2) to (x).
n.yn) to (xn / 2.yn) are stored as area D.

A flag corresponding to each of the areas A to D is provided in the screen division data area 13e, and the position data of the cursor image stored in the cursor position area 13d and the area data stored in the screen division data area 13e are provided. , Each flag is selectively set.

The cursor image data area 13f is the area A
To D displayed on four types of cursor image data Ca to C
d is stored. Cursor images Ca to Cd
Is composed of, for example, a 16 × 16 dot matrix.

Next, a cursor display control method in the display device 3 will be described. A display control method of various data other than the cursor image on the display device 3 is based on a conventionally known method, and a description thereof will be omitted.

FIG. 4 is a flowchart showing a process of starting display of a cursor image.

FIG. 5 is an explanatory diagram showing a state of extracting data.

FIG. 6 is an explanatory diagram showing a state in which the cursor image is overwritten.

FIG. 7 is a flowchart showing a process of ending the display of the cursor image.

FIG. 8 is a flowchart showing a cursor image moving process.

FIG. 9 is a flowchart showing a cursor image moving process.

FIG. 10 is an explanatory diagram showing a display switching state of the cursor image.

First, the cursor display start process will be described. As shown in FIG. 4, the data displayed on the screen of the display device 3 in step 41 is stored in the cursor position area 13d by operating a cursor key or a mouse as shown in FIG. The data displayed at the position of the cursor image is stored in the work area 13c (shown in FIG. 5; however, characters displayed on the screen are displayed in white). Next, in step 42, areas A to D for displaying the cursor image are determined based on the cursor image position data stored in the cursor position area 13d, and the cursor image data area 1
3f, the cursor images corresponding to the selected areas A to D are accessed, and the cursor image is overwritten and displayed on the screen from which the data has been extracted (shown in FIG. 6). To end the cursor image display start process.

On the other hand, the cursor display ending process will be described. As shown in FIG. 7, after the cursor flag is reset at step 44 to end the display of the cursor image, the data stored in the work area 13c is stored at step 45. Is displayed at the position where the cursor image was displayed, and the processing ends.

Next, a description will be given of the movement display processing of the cursor image when the cursor image is moved by operating the mouse 7, the cursor key, etc. in the display state of the cursor image. As shown in FIGS. It is determined whether a cursor image is displayed on the display device 3 with reference to the cursor flag. Since the cursor image is now displayed on the display device 3, the determination in step 46 is YES, and in step 47, the position data of the position where the cursor image is moved by operating the cursor key or the mouse is displayed in the cursor position area. After reading from 13d, it is determined in step 48 whether or not the current position of the cursor image is the same as the movement position of the cursor image instructed to move based on the data stored in the cursor position area 13d. Now, since the cursor image is operated to be moved by the mouse, the cursor key, or the like, the determination in step 48 is NO.

Next, after the display of the cursor image at the current position is completed in step 49, the work area 13 is displayed.
The data stored in c is displayed at the position where the cursor image was displayed, and in step 50, the data corresponding to the position where the cursor image is moved is stored in the work area 13c. Next, in each of the steps 51 to 54, the areas A to D where the cursor image is to be displayed are determined based on the data stored in the cursor position area 13d. Now, for example, when the cursor image is to be moved from the area B to the area C and displayed, the determination in step 53 is Y
In step 57, the cursor image data corresponding to the area C of the cursor image data stored in the cursor image data area 13f in step 57 is accessed and overwritten and displayed at the position, and then the cursor image is displayed in step 59. The coordinate data relating to the position is stored in the cursor position area 13d, and the processing ends.

If the moving position of the cursor image is in the area A, step 51 becomes YES and step 55; if it is in the area B, step 52 becomes YES and step 56; 52 is YES, and the same display processing as step 57 is performed in step 58. In the above-described display control processing shown in FIGS. 8 and 9, scan control is performed, for example, every 10 ms.

In the present embodiment, since the cursor image is switched and displayed according to the screen area of the display device 3, the cursor image disappears even when the cursor image is positioned at the right end and the lower end of the screen. There is no. Therefore, the entire cursor image can be displayed on the screen of the display device 3 and the processing position can be reliably specified.

Embodiment 2 FIG. 11 is an explanatory view showing a divided state of a display device screen and a cursor image displayed in each area.

In the first embodiment, the screen of the display device 3 is divided into four, the cursor display areas are set to areas A, B, C, and D, and the cursor images displayed in the areas A to D are selected to control the display. However, according to the second embodiment, the screen of the display device 3 is divided into two by a diagonal line and set in areas E and F. When the screen is located in the area E, a cursor image C of a left-up arrow shown in FIG.
e, display control may be performed such that a cursor image Cf of a right-down arrow is displayed when the cursor image Cf is located in the area F.

In this case, the divided data stored in the screen divided data area 13e is rewritten so as to correspond to the areas EF and the cursor image data area 13e.
Of the four types of cursor image data stored in f, two types of cursor images may be used, and the display control method is the same as in the first embodiment.

The screen in the display device 3 is divided by a diagonal line intersecting the diagonal line shown in FIG. 11 to set an area, and a lower left arrow is set in a lower left area and an upper right arrow is set in an upper right area. What is necessary is just to switch and display the cursor image.

Embodiment 3 FIG. 12 is an explanatory diagram showing divided display areas of a screen and a cursor image displayed in each area.

In the third embodiment, the display control method of the first embodiment is as follows.

That is, in addition to the areas A, B, C, and D described above, the divided area data (xk.yk) to (xn-k.yk) to (xn- k
yn-k) to (xk.yn-k) (k is an arbitrary integer of 1 <k <n / 2).

FIG. 13 is a part of a flowchart showing the cursor image moving process.

The display control process of the third embodiment is performed in the same manner as in the first embodiment up to step 50 shown in FIGS. Then, it is determined whether or not the position of the cursor image instructed to move in step 71 is within the common area I. When the position of the cursor image instructed to move is within the common area I, the determination in step 71 is YES,
In step 72, for example, of the image data stored in the cursor image data area 13f, an arbitrary cursor accesses the image data (for example, the cursor image Ca of a left-up arrow) and overwrites the image data.
After storing the coordinate data at which the cursor image is displayed in step 9, the process returns to step 46.

It should be noted that the position of the cursor image whose movement has been instructed in step 71 is NO, and
In the case of B, C, and D, display processing is performed according to steps 55 to 58 described above.

In the present embodiment, when the cursor image is moved and displayed in the common area G, the cursor image does not disappear. Therefore, in the common area I occupying most of the screen, one type of cursor image is displayed. Should be used.

[0043]

As a result, according to the present invention, the cursor image can be always displayed on the screen to reliably indicate the processing position, and the cursor image does not disappear from the screen.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a screen division state of a display device and a cursor image displayed in each area.

FIG. 2 is an electrical block diagram of a display device.

FIG. 3 is a front view showing a computer system to which a display device is connected.

FIG. 4 is a flowchart illustrating a process of starting display of a cursor image.

FIG. 5 is an explanatory diagram showing a data extraction state.

FIG. 6 is an explanatory diagram showing an overwritten state of a cursor image.

FIG. 7 is a flowchart showing a display end process of a cursor image.

FIG. 8 is a flowchart showing a cursor image moving process.

FIG. 9 is a flowchart showing a cursor image moving process.

FIG. 10 is an explanatory diagram showing a display switching state of a cursor image.

FIG. 11 is an explanatory diagram showing a divided state of a display device screen and a cursor image of each area.

FIG. 12 is an explanatory diagram showing a divided state of a screen and a cursor image of each area.

FIG. 13 is a part of a flowchart showing a cursor image moving process.

FIG. 14 is an explanatory diagram illustrating a disappearance state of a cursor image on a screen.

[Explanation of symbols]

 3 display device, 13c work area, AD area

Claims (4)

[Claims] 1. A display device for displaying various data on a screen and temporarily storing data at a cursor display position in a work area and superimposing a cursor image on the displayed data at the position. A cursor display control method for a display device that divides a screen into a plurality of screen areas, detects a screen area on which a cursor is displayed, and selects and displays cursor image data set in advance corresponding to each screen area. 2. The cursor display control method according to claim 1, wherein the display screen is divided into two at diagonal positions, and a cursor image in a direction facing a corner of the display screen can be displayed in each screen area. 3. The cursor display control method according to claim 1, wherein the display screen is divided into four sections in two columns and two rows, and a cursor image in a direction facing each corner of the display screen can be displayed in each screen area. 4. A cursor display control method according to claim 2, wherein a common screen area is set in a central portion of the display screen, and a single cursor image can be displayed in said common screen area.