JPS6127588A - Wind data control system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for controlling a window in a display having a window, which is an area for displaying data. This invention relates to a window control method suitable for enlarging and reducing display.

(Prior art and its problems) In recent years, in personal computers or workstations, multiple windows that are data display areas are provided on the display screen to create a virtual display screen and multiple applications can be run on one display. More and more systems are being implemented.

In such a system, since a smaller window is provided within the display, the following operating functions are required.

1) Overview display for referring to the entire data 2) Detailed display for reading individual data 3) Detailed display for referring to specific data 4) Reference for data of arbitrary size In conventional systems, Despite the fact that the above-mentioned operating functions are used extremely frequently, only the following measures have been taken.

1) The enlargement or reduction ratio was fixed, or allowed to change by only a few steps at most; 2) Complicated operations were required to reach the required data size.

(Purpose of the invention) The object of the present invention is to eliminate the above-mentioned drawbacks.

It is an object of the present invention to provide a window control method capable of continuously operating a window and display data within the window and scaling the window to an arbitrary size.

(Structure of the Invention) According to the present invention, the display screen has a window which is an area for displaying data, and by specifying a specific area on the display with a cursor controlled by an instruction device, the window or window can be displayed. In a window control method for a workstation with a window function that inputs commands for the display data of A window data control method is obtained in which both the frame and the window data are enlarged or reduced in response to a command. In particular, while the cursor is pointing, the enlargement or reduction operation continues, and the size of the data changes continuously.

(Operation/principle of the present invention) FIG. 1 shows a flowchart showing the principle of the present invention.

In block 10, coordinate values are input by pointing to an area on the display using a cursor. The position of the cursor is controlled by a pointing device.

In block 11, it is determined whether the coordinate values input in the processor 10 correspond to an enlargement or reduction command. If the command is applicable, proceed to the next process. In other cases.

Return to block 10 again and wait for command input.

In step 12, the window and window frame are enlarged or reduced. The window is the display area.

Window frames each indicate a frame surrounding a window. Figure 2 (a
) will be used to explain the case of enlarging operation. In the case of a window enlargement operation, a pre-enlargement window is enlarged and a post-enlargement window is generated. Window data is often displayed in the pre-enlargement window, but that area is cleared in the post-enlargement window. In the window frame enlargement operation, a pre-enlargement window frame is enlarged to generate a post-enlargement window frame. However, the frame width of the post-enlargement window frame is equal to the frame width of the pre-enlargement window, and only the size of the window frame is enlarged.

The case of reduction is the same as the case of enlargement except for the 5x magnification, so the explanation will be omitted.

Note that the magnification within the same window is set to a value close to 1 as the initial value, and each time the magnification is enlarged or reduced.

In other words, each time the processing in step 12 is performed, the minute values are each added to or subtracted from the previous magnification, and the processing is performed to gradually enlarge or reduce the magnification.

In Pro 13, the enlarged or reduced window and window frame are displayed on the display.

In step 14, the window data is enlarged or reduced. Window data is data displayed within a window. The case of enlarging operation will be explained using (in FIG. 2). In the case of a window data enlargement operation, the pre-enlargement window data within the pre-enlargement window frame is enlarged to generate post-enlargement window data. The case of reduction is the same as the case of enlargement except for the 1x magnification, so the explanation will be omitted.

Note that the magnification within the same window is set to a value close to 1 as the initial value, and each time the magnification is enlarged or reduced.

That is, each time the process of block 12 is performed, the minute values are each added to or subtracted from the previous magnification, and the process is performed to gradually enlarge or reduce the magnification. Moreover, the magnification in this pro, RiK, is linked to the magnification in pro, Ri12.

In step 15, the enlarged or reduced window data is displayed on the display. When this operation is completed, the block IOK returns and waits for the input of the next command.

By repeating the steps from block 10 to block 15, data of the required size can be displayed in the window. This repetition is performed if, when the series of processing from blocks 10 to 15 is completed, an instruction is still being given to an area corresponding to the same command in block 10.

(511 cases) FIG. 3 shows a block diagram showing one embodiment of the present invention.

In the figure, 200 is a processing device such as a microprocessor, 210 is a main memory for storing programs, tables, etc., 220 is a coordinate indicating device such as a mouse for indicating the position of a cursor on a display screen, and 230 is a window. 240 is a device for enlarging or reducing data; 260 is a display; 250 is a display 26;
Bitmap memory for 0.

Here, a normal window creation process that does not involve enlargement or reduction will be explained. Examples of the literature include Nikkei Electronics No. 1983.5.23, pages 158-159. In a system using window control such as the present invention, a plurality of windows are generally displayed on a display, and various applications are operated through these windows. In order to control such a window, K needs to store each window data in a window memory, synthesize the contents, and display it on the display. In this implementation sequence, the window memory 2
Window data is stored in the window memory 230, and the enlarging/reducing device 240 cuts out the window data stored in the window memory 230, and synthesizes a number of cut out screen images to create a display screen. In this case, it is assumed that the enlarging/reducing device 240 does not perform an enlarging/reducing operation, that is, operates at an enlarging/reducing ratio of 1.

Display screen composition is based on a screen management table stored in the main memory 210 or the like.

The processing device 200 instructs the scaling device 240.

The screen management table includes information such as window display priority, window storage location (window memory, 7 frame buffer), window size, etc.

The enlarging/reducing device 240 extracts window data from the window memory 230 according to the rise of the window in the screen management table, and further synthesizes the display screen according to the priority among the windows.

When multiple windows are displayed on the display, the one to be processed is the one specified by the instruction device 220, and the window frame that frames the window is the one specified by the processing device 220.
When writing from 0 directly to the 7 frame buffer 240,
It may be stored in the window memory 230 similarly to window data.

Next, the present embodiment will be explained.

The coordinates on the display instructed by the instruction device 220 are taken into the processing device 200 via the bus 270. When using a mouse or the like, the instruction action corresponds to pressing a mouse button. The processing device 200 searches the command coordinate correspondence table stored in the main memory 210 and extracts the corresponding command.

If the command is a zoom in or zoom out command,
The processing unit f200 calculates the enlargement or reduction ratio, clears the area in the frame buffer corresponding to the enlarged window size, and draws a width frame in the area in the frame buffer corresponding to the enlarged window frame. The contents in the frame buffer are displayed on the display 260 at the same time as they are rewritten.

Next, the processing device 200 issues an instruction and a magnification factor to the enlarging/reducing device 240 to enlarge or reduce the data stored in the window memory 230.

The enlarging/reducing device 240 enlarges or reduces the data by the specified magnification and writes the result to the frame buffer.

The contents in the frame buffer are displayed on the display 260 at the same time as being rewritten. As the 4-large data reduction method, a general image enlargement/reduction method such as data interpolation method 5 of Japanese Patent Application Laid-Open No. 551-65854 can be used.

As already mentioned, the 7-frame buffer 250 stores the result of scaling the data output from the scaling device 240. The display 260 has a frame buffer 250
The contents of the page are displayed at all times.

(Effects of the Invention) As described above, according to Honkata 2, the data displayed in the display area (window) on the display.

You can enlarge the display when you want to refer to the details, and reduce the display when you want to refer to the outline, and you can obtain wind data of a predetermined size with a simple operation. It has an effect on display.

[Brief explanation of drawings]

Fig. 1 is a flowchart for explaining the present invention in detail, Fig. 2 is a schematic diagram of the ninth data explaining the scaling operation of the window and the window data, and Fig. 3 shows an embodiment of the present invention. It is a block diagram. In the figure, 200 is a processing device, 21o is a main memory, 2
20 is an instruction device, and 230 is a window memory. 240 is a scaling device, and 250 is a frame buffer. 260 is a display. Figure 1 Figure 72 Wind data after enlargement

Claims (1)

[Claims] 1. A window is provided as an area for displaying data on a display screen, and by indicating a specific area on the display with a cursor controlled by an instruction device, the window or display data within the window can be displayed. In the window control method of a workstation with a window function, input commands for display data enlargement/
A window control method comprising a reduction device and displaying a window, a window frame, and display data in the window in an enlarged or reduced size together when a cursor is used to indicate an area corresponding to an enlargement command or a reduction command. 2. The window control method according to claim 1, wherein while the cursor is pointing, the enlargement or reduction operation continues in response to the command, and the size of the data is continuously changed.