JPH08211860A - Display color changing device - Google Patents

Abstract

PURPOSE: To prevent characters from becoming invisible at the time of changing display colors of a screen by considering that characters become invisible totally when a character color and a background color are the same color at the time of changing the character color and the background color of the screen in a color display. CONSTITUTION: In a Japanese word processor provided with a CPU 10, a keyboard 20, a RAM 30, a ROM 40 and a display part 50, when an instruction for changing of display colors is performed after color selections for setting respective colors of the character color and the background color, a decision whether the selected character color and the selected background color are the same color or similar colors is performed and the changing of colors is made effective only in the case colors are not the same color in the result of the decision.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color changing device for changing the display color of a color display screen.

[0002]

2. Description of the Related Art Conventionally, it is known that a user can freely set characters and a background color on a display screen.

[0003]

According to the above prior art, when the character color and the background color are made the same due to an operation error or the like, the character is completely invisible and the operation has to be aborted. It was

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a display color changing device which checks the character color and the background color and does not allow the same color.

[0005]

The object is to provide a color screen display means, an instruction means for instructing to change the display color of a screen displayed by the color screen display means, and an instruction for changing the display color by the instructing means. In the case of the above, the color selection means for selectively setting each of the character color and the background color on the screen and the determination of whether the character color and the background color selected by the color selection means are the same color or similar colors And a color determination unit that activates the color screen display by validating the color change only when the colors are not the same color or the same color.

[0006]

The color determination means compares colors to determine whether they are the same color, and as a result of the determination, the color change is effective only when the colors are not the same. Therefore, the same color or the same color is set. It works so that you never lose sight of the character.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which the present invention is applied to a Japanese word processor having a color display function will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a Japanese word processor. In the figure, 10 is a CPU, and this CPU (Central Processing Unit) 10 manages all the operations of the word processor. Also, this CPU (central processing unit)
10 includes a keyboard 20, a RAM (random access memory) 30, and a ROM (read only memory) 40.
And the display unit 50 is connected.

The keyboard 20 has a character / symbol key for inputting data and a color change key 21 for instructing and activating a display color change.

The RAM 30 is used for storing data input from the keyboard and used as a work area of a processing program. The RAM 30 stores a current display color memory 31 for storing the display color of the screen being displayed and a screen display. A comparison memory 32 used for comparison when instructed to change the color
have. The ROM 40 stores a control program for operating the CPU 10, and the CPU 10 controls all operations of the word processor including data input and document editing according to the control program.

The display unit 50 displays data transferred from the keyboard 20, the RAM 30 and the ROM 40 via the CPU 10.

The current display color memory 31 stores the character color and background color of the currently displayed screen. The stored information is a consistent number starting from 1 for the display color.

The comparison memory 32 is a temporary storage area for comparing display colors, and stores the character color and the background color in the same configuration as the current display color memory 31.

FIG. 2 is an example of a display screen of a Japanese word processor. In this screen, the characters of the character color referred to in the present invention are the character string of the input processed document such as "History of Japanese word processor", "1. Background of development", "..." and "Conversion Hiragana Mincho type , ”And both of the characters displayed by the system, and the background of the background color refers to all areas of the display screen of the word processor where the characters are not displayed.

FIG. 3 is a screen displayed when the display color change is activated by the color change key 21. A character color change presence / absence inquiry screen 51 and a background color change presence / absence inquiry screen 52.

"Change color" on screen 51 or screen 52
Is instructed, the color selection screen 53 displaying the selectable colors (53-1 to 53-n) is displayed.

FIG. 4 is a flow chart for realizing this embodiment. The flowchart is executed when the display color change is activated by the color change key 21.

When the color change key 21 is input from the keyboard 20, the display color selection process of step S1 (hereinafter simply referred to as S1 to S11) is started. The display color selection process is performed by the inquiry screen 51 of the change of the character color shown in FIG.
Then, a background color change presence / absence inquiry screen 52 is displayed to inquire about the presence / absence of a change. If there is a change, the color selection screen 53 is displayed to select the changed character color and background color.
The color number of the selected character color and background color (the color number is set to "0" if there is no change) and the end code of the display color selection process (discrimination between Enter / Esc input) are returned as return information.

In S2, the end code of S1 is determined. If the end code is Enter, S1 is validated, and if other than Enter is invalid, the process is terminated.

In S3 to S5, if the character color is changed as a result of S1, the changed character color is set to the character color of the comparison memory 32 which is a temporary storage area for comparison, and if it is not changed. Memory 32 for comparison of the current display character color
Set to. Similarly, S6 to S8 are background colors S1.
The background color of the memory 32 for comparison is set according to the result of (1).

In S9, the character color of the comparison memory 32 set as a result of S3 to S8 is compared with the background color. As a result of the comparison, when the character color and the background color are the same, the process of S1 is invalidated, the process returns to S1 again, and the input is performed again.

In S10, if the character color and the background color are different as a result of the comparison in S9, the process in S1 is validated and the comparison memory 3
The character color and background color of No. 2 are set to the character color and background color of the current display color memory 31.

In S11, the screen is redisplayed according to the character color and background color of the current display color memory 31.

[0024]

As described above, according to the present invention, the color screen display means, the instruction means for instructing to change the display color of the screen displayed by the color screen display means, and the instruction for changing the display color by the instructing means. In this case, the color selection means for selecting and setting each of the character color and the background color on the screen, and whether the character color and the background color selected by the color selection means are the same color or similar colors Since there is provided a color determination means for performing the determination and activating the color screen display by validating the color change only when the colors are not the same color or the same color,
In the color display, it is possible to prevent the characters on the screen display from becoming completely invisible due to an operation mistake of designating the character color and the background color to be the same color or the same color, and it is possible to improve the workability of the color change.

[Brief description of drawings]

FIG. 1 is a block diagram of an apparatus for carrying out the present invention.

FIG. 2 is a diagram showing a display example of a word processor.

FIG. 3 is a view showing an example of a screen display for changing a color.

FIG. 4 is a diagram showing a flowchart for realizing the embodiment.

[Explanation of symbols]

10 ... CPU, 20 ... keyboard, 21 ... color change key,
30 ... RAM, 31 ... Current display color memory, 32 ... Comparison memory, 40 ... ROM, 50 ... Display section.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takahiro Takahashi 1-1-1 Higashitaga-cho, Hitachi-shi, Ibaraki Hitachi Electric Co., Ltd. Electric Appliances Division Taga Headquarters

Claims (1)

[Claims] 1. A color screen display means, an instruction means for instructing to change the display color of a screen displayed by the color screen display means, and a character color on the screen when the display color is instructed by the instructing means. And a color selection unit for selectively setting each color of the background color, and it is determined whether the character color and the background color selected by the color selection unit are the same color or the same color, and the same color or the same color. A display color changing device including a color determining unit that activates the color screen display by validating the color change only when the color change is not true.