JPH02100123A - Display controller - Google Patents

Abstract

PURPOSE:To easily execute the retrieval of a widow of a device having a function of a multi-window by adding a mode in which the window can be retrieved. CONSTITUTION:A display sequence of a window before shifting to a retrieval mode and data of a display area are contained in a display sequence containing register 2 and a display area containing register 3. In such a state, when an arbitrary window is selected in the retrieval mode, a bit map processor 4 reads out the data of the display sequence containing register 2 and changes the display sequence so that the selected window is displayed on the uppermost part. Also, the bit map processor 4 reads out the data of the display area of the window from the display area containing register 3 in accordance with its sequence, reads out display data and a font from a work memory 1 and a character generator 5, respectively and develops them to a frame memory 6 and displays them on a CRT 7. In such a way, in a personal computer, a work station, etc., the window can be retrieved easily by a device which can execute a multi-window processing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to devices such as personal computers and workstations, and particularly to a display control device suitable for multi-window processing.

[Conventional technology]

Conventionally, regarding window search, Japanese Patent Laid-Open No. 62-229
As in No. 461, it was possible to search for one piece of data.

[Problem to be solved by the invention]

Although the above conventional technology can easily search for the same data (for example, text data on several pages of a word processor),
There was a problem that multi-windows were not taken into consideration, making it difficult to search easily.

An object of the present invention is to easily search for windows in a device having a multi-window function.

[Means to solve the problem]

The above objective is achieved by adding a window searchable mode.

[Effect]

When the window is shifted to a searchable mode, the data on the display order and display area of the window up to that point is stored in a register. When a desired window is searched in the window searchable mode, the display order data in the above register is updated, and the display is performed according to the display area data stored in the register and the updated display order data, so multiple overlaps are avoided. You can search all windows on the screen without having to manipulate the existing windows.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1, 2, 3, 4, and 5.

FIG. 1 is a block diagram of a display control device. 1 is a work memory that stores display data; 2 and 3 are registers (hereinafter referred to as display order storage registers) that store the display order of windows opened in the opener 1, which is a feature of the present invention; This is a register (hereinafter referred to as one display area storage register) that stores the display area of each window that is currently displayed. 4 is a bitmap processor which controls the main control of the device of this embodiment; 5 is a character generator; 6 is a character generator;
1 is a frame memory that stores bit data to be displayed on a CRT, 7 is a CRT, and 8 is a bus.

The bitmap processor 4 reads the window display order, display area, display data and related fonts from the character generator 5 from the work memory 1 and develops them into the frame memory 6. At this time, the portion where the window areas overlap is overwritten according to the display order and becomes the final display state. Here, under the control of the bitmap processor 4, a search mode is provided in which parts of the display areas of all open windows are divided without mutually overlapping, displayed simultaneously on the CRT, and an arbitrary window can be selected. (Hereinafter referred to as search mode) However, when shifting to search mode, the display order of windows in work memory 1 and the data in the display area must be changed to match the display state of search mode. Therefore, the window display order and display area data before shifting to the search mode are stored in the display order storage register 2 and the display area storage register 3. and,
When an arbitrary window is selected in the search mode, the bitmap processor 4 reads the data in the display order storage register 2 and changes the display order so that the selected window is displayed at the top.

The bitmap processor 4 reads the data of the display area of the window from the display area storage register 3 in accordance with the order, and reads the display data and character data from the work memory 1.
The font is read out from the generator 5, developed in the frame memory 6, and displayed on the CRT 7.

FIG. 2 is a flowchart showing the processing of this embodiment. The normal display in step S21 is a display state in which the operator opens a window and is working on the CR.
Window 10. on T7. Window 11. window 1
2 is displayed.

Also, window 13 is also open, but windows 10~
12 and is not displayed. In other words,
The open windows are, from the top, window 10,
They are displayed in the order of 11, 12, and 13. Step S
Assume that in step 22, the operator performs an operation to shift from the normal display state to the search mode. In step S23, the display order and display area data of all open windows in the normal display state are stored in the display order storage register 2 and display area storage register 3 shown in FIG. In step S24, the display is switched to a search mode in which a part of the display area of all the open windows is divided into a set number of parts without overlapping each other and displayed on the CRT 7. An example of the display at this time is shown in FIG.

In FIG. 4, the CRT 7 is set to display in four parts, and a portion of the open window is displayed.

In addition, if the number of open windows is greater than the preset number of divisions, a means is provided to display it on the next page and warn the operator that there is a page in search mode on the secondary page. is one example.

A window 14 is displayed at the bottom right of the CRT 7 to warn that there is a search mode page on the next page.

When this window 14 is selected.

You will be moved to the next page and will be able to search. A window 14 is also provided on the last page, and when the window 14 is selected, the screen returns to the first page.

Step S25 indicates that the operator has performed an operation to search for a desired window. In this embodiment, it is assumed that the window 13 in FIG. 4 is selected. Step S2
At step 6, data is read from the display order storage register 2 of FIG. 1, and the data is updated so that the searched window is displayed at the top. In other words, if windows 10, 11, 12, and 13 are displayed in the order of windows 10, 11, 12, and 13 in step S21, FIG. 3, and window 13 is selected in step S25, FIG. Updated to 10, 11, 12.

In step S27, data on the display area of the opened window is acquired from the display area storage register 3 in FIG. Read from character generator 5,
It is developed into frame memory and displayed on CRT7. FIG. 6 is an example showing the display state in step S27.

According to this embodiment, all windows existing on one screen can be searched without operating a plurality of overlapping windows in a display device capable of multi-window processing.

〔Effect of the invention〕

According to the present invention, windows can be easily searched on a device capable of multi-window processing such as a personal computer or workstation.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of a display control device according to an embodiment of the present invention, FIG. 2 is a flowchart of processing, and FIGS. 3, 4, 5, and 6 show specific examples of the display section. It is an explanatory diagram. DESCRIPTION OF SYMBOLS 1... Work memory, 2... Display order storage register, 3... Display area storage register, 4... Bitmap processor, 5... Character generator, 6
...Frame memory, 7...CR, T, 8...Bus, 10...Window, 11...Window, 1
2...window, 13...window, 14 window.

Claims (1)

[Claims] 1. A display control device capable of multi-window processing consisting of a bitmap processor that performs graphic and image processing, a frame memory, and a work memory under program control is provided with a register for storing the window display order and display area, and By adding a program that simultaneously displays parts of the display objects displayed in all open windows on divided display screen areas without overlapping each other, it is possible to display multiple overlapping windows simultaneously. A display control device characterized in that it is possible to search all windows existing on a screen without operating the screen.