JPH0773179A - Data display device - Google Patents

Abstract

PURPOSE:To attain editing operation without impairing operability even at the time of displaying large capacity data by attaining the reception of key input even in the process of graphic data display. CONSTITUTION:At the time of displaying graphic data, a graphic display symbol 7 that showing graphic data is under display is lighted in the setting area 10 of the screen 100 of a display device. Next, whether graphic data to be displayed exists or not on a document memory is researched and at the time of existing, graphic data is displayed on the editing area 9 of the screen 100. On the other hand, CPU checks whether there is key input or not to a key buffer 3 before preparing a plotting command by decoding graphic data and before delivering the plotting command to a graphic driver 6 while lighting the graphic display symbol 7. Then, when there is key input, display processing is immediately interrupted to be in a key input waiting state, so that the editing processing is enabled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the display of data, particularly the display of graphic data in a document preparation device such as a word processor.

[0002]

2. Description of the Related Art Conventionally, a desired figure has been displayed using a document preparation device such as a word processor. When a graphic is displayed by such a conventional document creating apparatus, graphic data is displayed when a key input from the user is not made for a certain time. That is, the graphic is not displayed while the user keeps pressing the key, and the display process is started at the moment when the key is released. This is a process that is performed to improve operability because it takes time to display the graphic data.

[0003]

However, in the conventional word processor, the display may start even when the key operation intended by the user is not completed. Therefore, the user cannot perform the next key operation until the display ends, which may impair the operability. In particular, it takes much time to display a large amount of graphic data, so that operability is often significantly impaired. An object of the present invention is to enable editing operations without impairing operability even when displaying a large amount of data.

[0004]

[Means for Solving the Problems] Display means for indicating that data is being displayed, and determining means for determining whether or not there is a key input when the display means indicates that data is being displayed. And a suspending means for suspending the display processing when it is determined that there is a key input.

[0005]

When the display means indicates that data is being displayed, it is determined whether or not there is a key input. If it is determined that there is a key input, this display processing is interrupted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. FIG. 1 is a diagram showing a circuit configuration of a graphic display device as a data display device according to an embodiment of the present invention, and FIGS. 2 and 3 are front portions of a flowchart showing the operation of the graphic display device of FIG. 1, respectively. And the rear,
FIG. 4 is a diagram showing a display example of graphic data.

In FIG. 1, a keyboard 2 as an input device is provided with cursor keys, numeral input keys and editing function keys (not shown), and scanning is performed by interrupt processing of the CPU 4, and any one of the above keys is pressed. If so, key data representing the contents thereof is stored in the key buffer 3. Document data including graphic data is stored in the document memory 5.

The CPU 4 executes a word processor program, fetches a key code from the key buffer 3 and executes each function of the word processor according to the contents. The function to be executed is the function key display area 11 of the screen 100 of the display device 1 shown in FIG.
Is displayed in. The graphic driver 6 is a CPU
4, a graphic is drawn in the editing area 9 of the screen 100 in accordance with the command sent from the computer 4.

Next, the graphic display operation according to the present embodiment having such a configuration will be described with reference to the flow charts of FIGS. Here, S represents a step.

First, the CPU 4 waits for a key input via the keyboard 2 (S1). Next, in the key input waiting state, 5
When there is no key input for 00 msec or more, that is, when there is no key data in the key buffer 3, the CPU 4
Display the graphic data on the display device 1. When there is a key input, processing is performed according to the key data in the key buffer 3.

In displaying the graphic data, first, the graphic display symbol 7 indicating that the graphic data is being displayed is turned on in the setting display area 10 of the screen 100 of the display device 1 shown in FIG. 4 (S2). Next, the document memory 5 is searched to see if graphic data to be displayed exists (S3). If it exists, the graphic data is displayed in the editing area 9 of the screen 100.

That is, the CPU 4 calculates the display position from the data on the document memory 5, decodes the graphic data to generate a drawing command, and passes this to the graphic driver 6 (S5, S7). Graphic driver 6
Draws graphic data as shown in FIG. 4 in the editing area 9 of the screen 100 in accordance with the drawing command from the CPU 4. FIG. 4 shows a case where a large amount of graphic data is drawn.

On the other hand, in the present embodiment, the CPU 4 is in the key buffer before the graphic display symbol 7 is lit and before the graphic command is decoded to create the drawing command and before the drawing command is passed to the graphic driver 6. It is checked whether or not there is key data in No. 3, that is, whether or not there is a key input (S4, S6). Here, when there is a key input, the display process is immediately interrupted, the key input waiting state is entered, and the editing process can be started.
As described above, the CPU 4 is provided with the judging means for judging the presence / absence of the key input and the suspending means for suspending the display processing when the key input is made.

If there is no key input in S4 and S6,
The processing is continued as it is, the next graphic data is searched, and the same display processing is repeated. That is, the CPU 4
After displaying one data, it is determined whether or not it is finished (S8), and whether or not the display of all graphic data is finished (S9), and when it is finished, the graphic display symbol 7 is turned off. Yes (S10). After that, a key input waiting state is entered and processing is performed in accordance with the key data stored in the key buffer 3.

As described above, in the present embodiment, when a key input is made during the display of the symbol indicating that the display processing is being performed, the display processing is interrupted and the editing processing is started. It was made to migrate. Therefore, even when a large-capacity graphic is displayed as shown in FIG. 4, editing operation can be performed without impairing operability.

In the present embodiment, the graphic display symbol 7 indicating that the graphic data is being displayed is displayed in the setting display area 10, but the present invention is not limited to this.
For example, it may be displayed on the status line 8.

Further, although the case of displaying graphic data has been described in the present embodiment, the present invention is not limited to this, and can be applied to the case of displaying character data, image data and the like.

[0018]

According to the present invention, since the key input is accepted even during the display processing, the editing operation can be performed without impairing the operability even when the display processing of a large-capacity graphic takes time. You can

[Brief description of drawings]

FIG. 1 is a diagram showing a circuit configuration of a data display device according to an embodiment of the present invention.

FIG. 2 is a front part of a flowchart showing the operation of the data display device of FIG.

FIG. 3 is a rear part of a flowchart showing the operation of the data display device of FIG.

FIG. 4 is a diagram showing a display example of graphic data.

[Explanation of symbols]

1 ... Display device, 2 ... Keyboard, 3 ... Key buffer, 4
... CPU, 5 ... Document memory, 6 ... Graphic driver, 7 ... Graphic display symbol.

Claims (1)

[Claims] 1. A data display device for displaying data on a screen, comprising: a display means for indicating that the data is being displayed, and a display means for indicating that the data is being displayed. A data display device comprising: a determining unit that determines whether or not there is a key input; and an interrupting unit that interrupts the display processing when it is determined that a key input has been performed.