JPH09171378A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve visibility of a cursor by changing the color of the cursor displayed on a display screen, corresponding to the background color. SOLUTION: A cursor 303 displayed on a display screen 300 is moved linking with the operation of a pointing device such as a mouse (not shown in the figure), etc., and can direct an arbitrary position of display screen 300. When the cursor 303 exists in a first background color area 301 of the display screen, the cursor color is automatically changed into a color of good visibility based on the background color to be displayed. Being moved to a position in a second background color area 302, the cursor 303 is automatically changed in color based on the background color. As a result, the cursor becomes easy to see very much by being changed to a color which improves a visibility against the background color and the operability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to connect a pointing device composed of a mouse or the like in a desktop personal computer or the like equipped with a display device such as a color CRT or a color liquid crystal, and according to the pointing device. Regarding moving cursor display.

[0002]

2. Description of the Related Art Conventionally, in a personal computer or the like, a cursor for pointing and specifying a position on the display screen can be moved to an arbitrary position in response to an operation of a mouse, which is a pointing device, for example. , You can point to any position. Then, information processing can be performed according to the position of the cursor.

Therefore, Japanese Patent Laid-Open No. 5-108139 discloses that while information is being processed on the screen of a display device,
By showing the existence position of a specific area that leads to another screen call by changing the state of the cursor itself, it is possible to deepen the understanding on the user side. That is, the user can know that another screen can be called by changing the state of the cursor. As the change of the cursor state, for example, it is specified that the color is changed.

On the other hand, the shape of the cursor for explaining the attribute (text input portion, operation menu portion, etc.) of the position where the cursor is displayed, as seen in the function of word processing software "Word" of Microsoft Corporation. , Some change the direction, etc. This allows the user to know the situation according to the change in the shape of the cursor.

[0005]

In the prior art, the cursor is moved on an arbitrary screen of the display device, and the color or state of the cursor is changed according to the situation.

However, recently, display devices have been colorized,
Display data can be displayed in color. for that reason,
As described above, if the display color of the cursor on the display screen is simply switched to a fixed color, the cursor may be very difficult to see. For example, if the background color of the display screen is the same type of color as the cursor, the cursor is buried in the background, visibility is poor, and the cursor may be difficult to see or lose sight of. It was bad.

That is, even if the shape or color of the cursor itself is changed at the position of the cursor or in a desired state as in the prior art, if the cursor changes to a color of the same system as the background color as described above, It may not be able to recognize the cursor and may make an incorrect operation. Moreover, even if the shape of the cursor is changed, the position of the tip of the cursor or the like cannot be recognized and the operability of the cursor is deteriorated under the present circumstances. In particular, when an image is pointed by a cursor, a part of the cursor may protrude from the display screen, the cursor may not be recognized, and the cursor may be lost. Therefore, the operability of the cursor is very poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a pointing device generally used in an information processing apparatus, which can improve visibility and operability. It is a thing.

It is a particular object of the present invention to change the color of the cursor or the directionality in which the cursor is pointing, and to improve the visibility of the cursor in the change.

[0010]

In order to achieve the above-mentioned object, the present invention provides a display device for displaying display data, and a display device for displaying a cursor indicating an arbitrary position together with the display data. In an information processing device comprising a display control means, a pointing device for moving the cursor to an arbitrary position on a display screen, and a coordinate calculation means for calculating the position of the cursor moved by the pointing device, A means for detecting the background color of the display screen at the position of the cursor on the display screen calculated by the coordinate calculation means, and the cursor visually stands out against the background color detected by the background color detection means Cursor color switching means for automatically switching the display to such a color. Here, the background color detection means is
In particular, the background color at the coordinate position of the tip pointed by the cursor is detected.

With the above configuration, the color of the cursor is automatically changed with respect to the background color of the display position designated by the cursor, so that the visibility of the cursor itself is improved and the cursor is positioned in the target area. This can be easily confirmed on the user side. In other words, according to the background color where the cursor is located, the cursor is automatically switched and displayed in a color that makes it easier to see, so that the operability of the information processing apparatus, especially the operability of the cursor, can be improved, and erroneous operation is eliminated. Will be possible.

Further, according to the present invention, in order to improve the visibility of the cursor, the area occupied by each of the background colors hidden by the cursor is calculated from the display position of the cursor, and the maximum area is calculated. Determines the background color dedicated to the area. The display color of the cursor is determined from the determined background color using the reference table. This makes it possible to easily recognize the cursor position even in the area where the background color changes. That is, the background color that occupies the maximum area is detected from the background colors that overlap the entire cursor while changing the color of the cursor with respect to the background color only at the tip of the cursor. On the other hand, by changing the color of the cursor, the visibility of the cursor itself can be further enhanced.

Further, in order to achieve the above-mentioned object, the present invention further comprises a display device for displaying the display data, and a display control means for causing the display device to display the display data and a cursor for indicating an arbitrary position. In an information processing apparatus comprising a pointing device for moving the cursor to an arbitrary position on a display screen, and a coordinate calculation means for calculating the position of the cursor moved by the pointing device, It is characterized by further comprising cursor direction changing means for automatically changing the arrow direction indicated by the tip of the cursor according to the calculated position of the cursor.

With this configuration, it is possible to change the directionality of the cursor, particularly the direction of the tip of the cursor. For example, the tip of a normal cursor is displayed with an arrow pointing to the upper left, and the arrow direction of the cursor tip is changed at the right end or the lower part of the screen, for example, it is switched to the upper right, the lower right, or the lower left. . This makes it possible to specify the entire area of the display screen with the cursor, and at the same time, it is possible to eliminate the inconvenience of the cursor protruding from the screen and being lost.

In the above information processing apparatus, means for detecting the background color of the display screen at the position of the cursor on the display screen calculated by the coordinate calculating means, and background color detected by the background color detecting means. On the other hand, by providing the cursor color switching means for automatically switching the display of the cursor to a visually prominent color, the display of the directionality of the cursor is switched, and at the same time, the color is simultaneously changed with respect to the background color. By changing it, the visibility of the cursor can be further improved and the operability of the cursor can be improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an operation explanatory diagram showing a first embodiment of the present invention in which the color of the cursor according to the present invention is changed and displayed so that the visibility can be improved according to the background color. 2 is an external view of an information processing apparatus according to the present invention, and is a perspective view showing a personal computer in particular, and FIG. 3 is a block diagram showing a control circuit configuration of its internal circuit.

First, referring to FIG. 2, the information processing apparatus will be briefly described. In the figure, 100 is a data processing device, 10
Reference numeral 1 is a display device for displaying display data and a cursor 106 on the display screen 105, and is composed of, for example, a color CRT or a color liquid crystal display device. A keyboard 102 is an input device for inputting data and commands.
Reference numeral 3 denotes a mouse as a pointing device for moving the cursor, and clicking and dragging.
Is a storage medium for storing data and the like.

A display image such as a window is displayed on the display screen 105 of the display device 101, and the cursor 106 and the like are displayed together with the display data on the display screen 105. The data processing device 100 moves a cursor 106 to an arbitrary position on a display screen 105 within a certain limit in accordance with an input from the mouse 103 according to a program stored in advance, and displays it. It is designed to be displayed via 101. The movement of the mouse 103 and the cursor 106, and the display process are known techniques in the related art, and a description thereof will be omitted.

Next, referring to FIG. 3, the data processing device 10
The overall configuration of 0 will be described. In the figure, reference numeral 200 indicates a central processing unit (CP) for controlling and calculating data.
U), 201 is a read-only recording memory that stores a program for operating the CPU 200,
Reference numeral 202 denotes a RAM for temporarily storing data from a storage device such as the hard disk 208 or an input device such as the keyboard 102, or storing necessary programs and data for the CPU 200 to perform arithmetic control.

Reference numeral 203 indicates the display controller 20.
4 is a display RAM that stores display information via the display controller 4, and display data is displayed on the display screen 105 of the display device 101 by the display controller 204. The display data is stored in the display RAM 203 as data for the CPU 200 to perform a display input by the mouse 103, which is a pointing device, the keyboard 102, or the like each time.

207 is a hard disk 208 and CPU 2
The hard disk 208 stores an application program and a program for controlling a display image such as a window. 209 is a floppy disk 210 and CP
The floppy disk 210 is an interface for connecting the U200, and is used as a storage device for writing data and programs in the storage medium 104.

Further, reference numeral 211 designates the keyboard 102.
The mouse 103 and the communication device 212 to the CPU 20.
It is an I / O interface for connecting to 0. The communication device 212 is a device for connecting a modem, a LAN, etc., and for communicating with an external information processing device.
-Use equipment that conforms to standards such as 232C.

(First Embodiment) A first embodiment of the present invention will be described below with reference to FIG. FIG.
3 is a flowchart showing a control operation flow for switching the color of the cursor shown in FIG. FIG. 5 is a flowchart showing another control operation flow when the color of the cursor is switched.

First, in FIG. 1, 300 is a display screen actually displayed on the display screen 105 of the display device 101 described in FIG. 2, and 303 is a cursor. The cursor 303 can be moved to an arbitrary position on the display screen 300 in conjunction with the movement of the pointing device such as the mouse 103 in FIG. 301 is a first background color region whose background color is blue (R: 0, G: 0, B: 255), and 302 is a white background color (R: 255, R: 255).
G: 255, B: 255).

Here, the colors displayed on the display screen 300 are expressed as shown in FIG. 6, for example. In FIG. 6, a specific color is determined by a combination of three primary colors (light) red (R), green (G), and blue (B), and each of the three primary colors can be set in 256 steps from 0 to 255. A desired color can be freely expressed by combining these colors. For example, to display black, R = 0, G =
0, B = 0, and the emission luminance state is set to “0” in the color CRT. In the case of white, R = 255, G
= 255, B = 255, and the emission brightness state is maximized, so that "white" can be virtually expressed. In short, when the numerical value is large, the display brightness increases.

In FIG. 1, the lower left (left corner) position of the display screen 300 is the coordinate origin "0", the right direction (horizontal direction) from the origin is the X axis, and the upper direction (vertical direction) is the Y axis. The coordinates of the tip A of the cursor 303 are represented as (xn, yn). Here, n = 1, 2, 3 ... m.

Now, the tip A of the cursor 303 is shown in FIG.
It is at the position shown in (A), and its coordinates are (x1, yl). The cursor 303 at this position has a tip A whose background color is blue (R: 0, G: 0, B: 2).
Since it is located at position 55), the cursor 303 is displayed in the default "white" state.

FIG. 7 shows a cursor 303 for the background color.
7 shows an example of a color switching table for determining the color of. This color switching table is stored in advance in the ROM 201 or the like, and the cursor 303 corresponding to the background color 301
It is used as a table that determines the color of. Therefore, when the background color is (a), that is, when R, G, and B all have the same value, the background color is achromatic and
If the total value of G and B is large, it approaches white, and if it is small, it approaches black. Therefore, when the background color is an achromatic color, for example, “75” is added to the R component of the background color (R + 75), the G component is left as it is, and the B component is “75” so that the contrast state becomes large. Subtract (B-7
Perform 5). As a result of adding the above-mentioned value “75”, if the value exceeds “255”, “255” is further subtracted from the calculated value, and if the result of the subtraction becomes negative, the calculated value To "255" are added.

When the background color is (b), that is, under conditions other than (a), the minimum value of R, G, B is subtracted from the maximum value of R, G, B. When the difference is 50 or less. That is, this is a case where there is no difference in the values of the components of the colors R, G, B, and the colors are close to achromatic. If the background color matches this condition, the cursor 303 is changed to the one having the largest value among the color components R, G, B by "7".
"5" is added, and "7" is added to the smallest value among R, G, B.
5 "is subtracted. For example, the background color is R: 180, G: 1.
If 70 and B: 150, the condition of (b) is met, and the color of the cursor 303 is R: 255, G: 17.
0, B: 75. When the background color is R = G, R> G, and when G = B, G> B, and B = R.
In this case, B> R is set and the above-mentioned “75” addition / subtraction processing is performed.

Further, except for the conditions (a) and (b), and the maximum values of R, G, B exceed "200", and R, G
When the second largest value of G and B exceeds "200" and the total value of R, G and B exceeds "650", the background color is very bright and whitish. . However, even if it becomes whitish, it becomes a color instead of an achromatic color. Therefore, as the color of the cursor 303,
From the relationship of contrast, black (R: 0, G: 0, B:
0). For achromatic colors, the cursor 303
The visibility is improved by coloring the cursor 303 without changing the color to black or white, and when the brightness (luminance) of the background color other than achromatic color is very high, the color is changed to black instead of color. This is because the cursor 303 can be displayed more clearly.

Finally, when the conditions (a), (b), and (c) are not met, the background color has a low brightness and white (R: 255, R: 255) to raise the brightness of the cursor 303.
G: 255, B: 255) can improve the visibility.

Then, as shown in FIG. 1B, the cursor 30
3 is the background color 30 from the position of blue of the background color in FIG.
2 moves to the white area, the tip A of the cursor 303 becomes the coordinates (x2, y2) and becomes (x2, y2).
Background color, that is, white (R: 255, G: 255,
B: 255), the color of the cursor 303 is as shown in FIG.
As shown in the color switching table of, the color changes to the color (R: 75, G: 255, B: 180) corresponding to the background color.
That is, if the background color is “white”, the condition (a) is met in the color switching table of FIG.

As described above, the cursor 303 is moved to an arbitrary position on the display screen in conjunction with the operation of the mouse or the like,
The color of the cursor is determined and displayed according to the background color. At this time, the cursor 303 changes corresponding to the background color when the tip A of the cursor 303 moves to the background color area of a different color, as shown in FIG. 8A, for example. Therefore, the tip of the cursor 303 has coordinates (x1, y
When moving from l) to (x2, y2), the cursor 30
When the tip A of 3 enters the coordinates of the display area (white) of the background color 302, the color (R: 75, G:
255, B: 180).

FIG. 4 shows a flow chart for controlling the switching of the color of the cursor when the cursor moves as shown in FIG. 1 and enters a region of a background color of a different color. The control operation will be described with reference to this flowchart.

In the flowchart of FIG. 4, the cursor 303 is initially displayed in the default state (step 50).
1). When the operator moves the cursor 303, the information is input (step 502). The display coordinates of the tip A of the cursor 303 of the movement destination are calculated (step 503). This step 503 is a coordinate calculation means for calculating the coordinates of the tip A of the cursor 303. The coordinates are represented by (xn, yn) n = 1, 2, 3, ... M, and n increases by 1 each time the cursor moves up, down, left, and right by an amount corresponding to one pixel on the display screen.

Then, the moved coordinates (xn, yn)
The background color of is calculated (step 504). Regarding this background color, for example, the color (R, G, B) corresponding to the above-mentioned coordinate (xn, yn) position in the display RAM 203 that stores display data for displaying the display device 101 can be referred to. This step 504 is the tip A of the cursor 303.
Is a means for detecting the background color corresponding to. It is confirmed whether or not the color of the cursor 303 is to be switched with respect to the calculated background color (steps 505, 506, 507), and if the cursor color needs to be changed, refer to the table of FIG. It is confirmed whether any of the conditions (a) to (d) is met, and the color of the cursor 303 is determined and displayed (step 508). Steps 505, 506, 5 described above
07 and 508, and the color switching table shown in FIG. 7 are included in the cursor color switching means.

In the flow of FIG. 4, step 5
If No in 05, 506, or 507, the condition is (d) in the color switching table in FIG. 7 and the lightness of the background color is low. Therefore, the cursor 303 is determined and displayed as “white”. It This condition (d) is the default state.

As described above, in step 505,
First, it is determined whether or not the background color is R = G = B. In this case, if the values of R, G, and B are the same, the condition of (a) in the table of FIG. 7 is met, so the background color is an achromatic color as described above, and according to the table shown in FIG.
"75" is added (R + 75) to the value of the R component, "75" is subtracted (B-75) from the value of the B component, and the color of the cursor 303 is determined and displayed.

If the condition (a) in step 505 is not satisfied, then it is determined in step 506 whether the difference between the maximum value and the minimum value of R, G, B is "50" or less.
This is a determination as to whether or not the condition of (b) of FIG. 7 is met. If the determination is Yes, the maximum value (MAX) of the components R, G, B of each color according to the table of FIG. To "+75" and to the minimum value (MIN) to "-75" to determine and display the color of the cursor 303. Here, as a result of addition and subtraction as described above, each color component R,
If the values of G and B exceed "255", further "255"
Is subtracted, and if it becomes negative, "255" is added.

Further, if the condition of step 506 is not satisfied, the maximum value of R, G, B and the value next to the maximum value exceed "200", and the total of R, G, B is "65".
Whether or not it exceeds 0 "is checked in step 507. This check is the determination of the condition (c) of FIG. 7. If the determination is Yes, the cursor 303 is moved according to the table of FIG. It is displayed as “black.” If it does not match the condition of step 507, the screen shown in FIG.
Is the condition (d), and the cursor 303 is determined as “white” and displayed.

The above is the change at the time when the position of the tip A of the cursor 303 moves to the position where the background color has changed. In that case, when the tip A of the cursor 303 moves to the position of the second background color area 302 of the display screen as shown in FIG. 8A, most of the remainder of the cursor 303 is the area of the white background area 302. Not the first background color area 301
Exists in the position. Therefore, the visibility of the cursor 303 may be reduced. That is, the cursor 303 is determined by the color of the second background color area 302 regardless of the color of the first background color area 301. Therefore, it is conceivable that the color of the cursor 303 and the color of the first background color area 301 are similar or similar.

Therefore, if the color of the cursor 303 is determined while confirming that more than half of the total area occupied by the cursor 303 including the tip A has moved to the background 302, the visibility can be further improved. . That is, as shown in the flowchart of FIG. 4, the coordinates (x
(n, yn) Not only the background color of one point, but also the background color that occupies the largest area among the background colors where the entire cursor overlaps is calculated, and the cursor color is changed with respect to the background color.

The above description will be described in detail with reference to FIG.
As shown in (B), the cursor 303 overlaps the blue color of the first background color area 301 and the white color of the second background color area 302. The area of the background color hidden by the cursor 33 is calculated, and the color of the cursor 303 is determined with respect to the background color showing the maximum area overlapping each background in the calculated area. Here, the area can be easily obtained by calculating the number of dots of the same color in the displayed area.

FIG. 5 shows a flowchart of control for determining the color of the cursor 303 described above.
The control operation will be described according to the flowchart.

5 is different from the flowchart of FIG. 4 in the control part for obtaining the background color with respect to the coordinates of the tip A of the cursor 303 in step 504, and the other control is the same. The description is omitted.

In FIG. 5, the cursor 303 is initially displayed in the default state (step 501), as described above. When the operator operates the mouse 103 to move the cursor 303, the information is input (step 502) and the coordinates of the tip A of the cursor 303 are calculated (503).

After the coordinate position of the tip A of the cursor 303 is calculated, each area of the background color where the entire cursor 303 overlaps is calculated (step 514).
The areas of the calculated background colors are compared, and the largest one is determined as the background color (step 515). In the example of FIG. 8, in the state (A), even if the tip A reaches the white background 302, the remaining display area of the cursor 33 largely overlaps the background 301, and thus the color of the area of the background 301 is changed. Will be decided. Further, in FIG. 8B, if the partial area of the cursor 33 including the tip A located in the background area 302 becomes larger than the remaining area of the cursor 33 that overlaps the background area 301, it corresponds to the color of the area of the background 302. Then, the color of the cursor 303 is determined. The above steps 514 and 515 are the means for detecting the background color.

Whether or not the background color determined in step 515 is switched to determine the cursor color is checked in steps 505, 506 and 507 as described in FIG. Then, the color of the cursor 303 is determined, and the cursor 303 is displayed in the determined color.

(Second Embodiment) In the first embodiment, the color of the cursor 303 is determined by the displayed background color, and the cursor 303 becomes difficult to see according to the background color. Can be eliminated, the color of the cursor 303 can be changed, and its visibility can be improved.

On the other hand, the direction of the cursor 303 is always constant, and as shown in FIGS. 1 and 8, the tip A is normally indicated by an arrow pointing to the upper left. Therefore, the cursor 30
If 3 is moved to the right end or the lower part, a part of the cursor 303 will be out of the screen 300 and the cursor 303 will be lost, making the cursor 303 very hard to see. An embodiment for preventing this will be described below.

In FIG. 9A, 600 is a display screen, and 601 is a cursor, which is moved to an arbitrary position on the display screen 600 when it reaches the movement of the pointing device such as the mouse 103. Further, 602 is the coordinate origin (0, 0), 603 is the point of the coordinate (0, a), 60
4 is a point of coordinates (b, 0). Further, 605 is an area for displaying the coordinates (Xp, Yq) on the screen, but in the present invention, the arrow of the cursor 601 of Xp <b, Yq> a is displayed in the initial state. Reference numeral 606 denotes an area at the right end and the lower portion on the screen, which is a range in which the visibility and operability of the cursor are usually impaired. Cursor 6
This is a display change area of the arrow 01.

The tip A (xn, yn) of the cursor is the coordinates (Xr, Y) of the right end and the lower part on the screen 600 which are preset.
s) When moving to a region of Xr ≧ b or Ys ≦ a, that is, xn ≧ b for the X coordinate or yn for the Y coordinate.
When the relationship of ≦ a occurs, the direction of the arrow of the cursor 601 is automatically highlighted in the upper right direction or the lower left direction, respectively. In the area where the tip A of the cursor 601 is xn ≧ b and yn ≦ a, that is, in the right corner, the cursor 6
The direction of the arrow 01 is displayed in the lower right direction.

For example, in FIG. 9A, the cursor 60
The tip A of 1 is located in the area 605 as shown in the figure, and its coordinates are (xl, y1). Cursor 601
Since the tip A of is in the area of coordinates (Xp, Yq),
The cursor 601 is displayed in the default upper left direction. The coordinates (x1, y1) are (x1, y1) =
(Xp, Yq), where Xp <b, Yq> a.

When the cursor 601 is moved from the state of FIG. 9A to the state of FIG. 9B by operating the mouse 103, the coordinates of the tip A of the cursor 601 are the coordinates (x2, y2). Become. This coordinate (x2, y2) is
(Xr, Ys) r ≧ b display change area 606 (x2 ≧ b
If the cursor 601 is located in a region (satisfying the above condition), the cursor 601 is inverted and displayed in the upper right direction. Thereby, the position designated by the cursor 601 at the right end can be easily confirmed.

If the cursor 601 moves to the lower position of the display screen 600, as shown in FIG.
The arrow direction is displayed in the lower left direction. That is, the cursor 6
When the tip A of 01 moves to the lower part of the display area 606, if the coordinates (x3, y3) of the tip A of the cursor are within the area 606 represented by the coordinates (Xr, Ys) Ys ≦ a, The cursor 601 is inverted and displayed in the lower left direction. However, the Y coordinate y3 of the tip A of the cursor 601 is
y3 ≦ a. In this way, even if the cursor 601 moves to the lower portion, the arrow direction of the tip A of the cursor 601 is displayed in the lower left direction, so that the position can be easily confirmed. That is, the cursor 601 can display the whole without protruding from the screen 600.

Further, the position (xn, yn) of the tip A of the cursor 601 is at the lower right coordinate (Xr, Ys) Xr ≧ b.
In addition, when the cursor is moved to the display change area of Ys ≦ a (lower right corner), the cursor 601 is displayed in the lower right direction, and the entire cursor 601 is displayed without protruding.

The values (coordinate values) at the coordinate values "a" and "b" for changing the direction of the cursor 601 in the direction of the arrow are displayed as shown in FIGS. 10 (A) and 10 (B). Determined by the sizes L1 and L2 of the cursor 601, the coordinate value a is the size L2 (length) of the cursor 601.
Then, the coordinate value b is determined by the size L1 of the cursor 601.

FIG. 11 shows a flowchart for carrying out the above-described embodiment. The control operation will be described with reference to this flowchart.

First, the cursor 601 is displayed in the default state, that is, in the upper left direction (see FIG. 9A) (step 701). When the operator moves the cursor 601, the information is input (step 70).
2).

The display coordinates (xn, yn) of the tip A of the cursor 601 of the movement destination are calculated (step 703),
The direction of the arrow of the cursor 601 is determined with respect to the size of the X coordinate. That is, it is confirmed in step 704 whether or not the arrow is horizontally reversed. That is, it is determined in step 704 whether or not the “xn” of the X coordinate of the tip A of the cursor 601 is greater than or equal to the value b indicating whether it is within the display change area 606.
Is checked (xn ≧ b). If the result of this check is Yes, the direction of the arrow of the cursor 601 is reversely displayed from right to left (see FIG. 9B) (step 7).
05).

Then, in step 706, it is confirmed whether or not the cursor is vertically inverted with respect to the size of the Y coordinate. In this case, the cursor 60 at the time of moving as described above
It is checked whether the Y coordinate value yn of the coordinate (xn, yn) of the tip A of 1 is less than or equal to b indicating the coordinate value in the lower display switching area 606 (yn ≦ a). If Yes in this check, the up and down direction of the arrow of the cursor 606 is reversed and displayed (see FIG. 10B) (step 707).

If it is determined No in step 704 and / or 706, the orientation of the cursor 601 is not changed and the cursor is displayed in the initial state (default state). Then, if YES is determined in both steps 704 and 706, the arrow of the tip A of the cursor 601 in the direction completely opposite to the initial state is displayed in the lower right direction. Steps 704 to 70 above
Reference numeral 7 denotes a direction changing means for changing the direction of the cursor 601, and means for detecting the coordinates of the cursor 601 corresponds to step 703.

In the above description, the cursor 601
According to the moving area of the tip A, the direction of the arrow is inverted. In accordance with this inversion, the color of the cursor 601 is determined according to the background color as described in the first embodiment. It is possible to display it as well, so that the visibility is assured and the pointing position can be confirmed more easily and surely.

The shape of the cursor 601 is not shown in FIG. 9 or the like. When the cursor 601 is displayed in the upper right direction in the default state, the above-mentioned display change area 606 is displayed.
For example, when the tip A of the cursor 601 reaches the left end and the lower part and the area 606 is reached, the display of the cursor may be changed.

[0066]

As described above, according to the information processing apparatus of the present invention, since the tip position of the cursor is confirmed in color display, the cursor can be easily confirmed without being influenced by the background color. Since the visibility can be improved and the position of the tip can be easily recognized, the operability when moving the cursor can be improved.

Further, the visibility of the cursor can be further improved by targeting the background color of the entire cursor.

Further, by switching and displaying the direction of the arrow designated by the cursor at an arbitrary position on the screen, it is possible to prevent a part of the cursor from protruding and disappearing. Never lose sight of
The visibility can be improved, and thus the operability of the cursor can be improved.

Therefore, the operation at the edge of the screen, which has been difficult to operate conventionally, can be simplified, and the entire area of the display screen can be designated by the cursor, so that the operability can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a display example of a cursor for explaining a first embodiment of the present invention.

FIG. 2 is a perspective view showing an example of the external appearance of a personal computer that is an information processing apparatus according to the present invention.

FIG. 3 is a block diagram showing an example of a circuit configuration of a processing apparatus main body which constitutes the information processing apparatus shown in FIG.

4 is a flowchart showing a control operation for changing the cursor color in FIG.

5 is a flowchart showing another control operation for changing the cursor color in FIG.

FIG. 6 is a diagram showing a form of stepwise display of each color component displayed on the display screen.

FIG. 7 is a diagram showing an example of a table for changing the color of the cursor according to the present invention in correspondence with the background color.

FIG. 8 is a diagram showing a display example showing a state in which the color of the cursor is changed according to the control flowchart shown in FIG.

FIG. 9 is a diagram showing a display example of a display inversion state of a cursor according to the second embodiment of the present invention.

FIG. 10 is a diagram showing a display example of a display inversion state of a cursor according to the second embodiment of the present invention, (A) showing a coordinate area in the X-axis direction in which display is inverted, and (B) showing display inversion. Y
It is a figure which shows the coordinate area of an axial direction.

FIG. 11 is a flowchart for executing a control operation of reverse display of a cursor according to the second embodiment of the present invention.

[Explanation of symbols]

 100 Data Processing Device 101 Display Device 103 Mouse (Pointing Device) 106 Cursor 300 Display Screen 301 First Background Color Area (Example: Blue) 302 Second Background Color Area (Example: White) 303 Cursor A Cursor Tip Position 600 Display screen 601 Cursor 603 Coordinate point of lower area of display 604 Coordinate point of right end area of display 605 Display area in default state 606 Change area for cursor reverse display

Claims (5)

[Claims] 1. A display device for displaying display data, display control means for causing the display device to display a cursor indicating an arbitrary position together with the display data, and moving the cursor to an arbitrary position on a display screen. In an information processing apparatus including a pointing device for causing the cursor to move, and a coordinate calculation unit for calculating the position of the cursor moved by the pointing device, the position of the cursor on the display screen calculated by the coordinate calculation unit A means for detecting the background color of the display screen; and a cursor color switching means for automatically switching the display of the background color detected by the background color detecting means to a visually prominent color. An information processing apparatus comprising: 2. The information processing apparatus according to claim 1, wherein the background color detecting means detects the background color at the position based on the coordinates of the tip position indicated by the cursor. 3. The background color detecting means, when an area of the area including the tip of the cursor that overlaps the background area is larger than the remaining area that overlaps the background areas of other portions with respect to the entire area occupied by the displayed cursor. 2. The information processing apparatus according to claim 1, wherein the background color is detected, and the cursor color conversion means switches the cursor color based on the background color detected by the background color detection means. 4. A display device for displaying display data, a display control means for displaying on the display device together with the display data a cursor for indicating an arbitrary position, and moving the cursor to an arbitrary position on a display screen. In an information processing device comprising a pointing device for causing the cursor to move, and a coordinate calculation means for calculating the position of the cursor moved by the pointing device, a cursor is provided according to the position of the cursor calculated by the coordinate calculation means. An information processing apparatus comprising a cursor direction changing means for automatically changing the arrow direction indicated by the tip. 5. A means for detecting the background color of the display screen at the position of the cursor on the display screen calculated by the coordinate calculating means, and the cursor for the background color detected by the background color detecting means. 5. A cursor color switching means for automatically switching the display to a visually noticeable color is provided.
The information processing device described.