JPH0244398A - Oblique scroll realizing system in interactive text editor - Google Patents

Abstract

PURPOSE:To flexibly allow a screen display to scroll in a free direction by constituting the title system so that an oblique scroll processing in the upper left, lower left, upper right and lower right directions by combining scroll processings in the upper, lower, left and right directions. CONSTITUTION:An input key analyzing means 2 analyzes an inputted key and determines the direction of a scroll, and a scroll command train generating means 3 generates a scroll command train 4 obtained by combining executing commands for executing scroll processings in the upper, lower, left and right directions, respectively in order to execute the scroll processing in the designated direction. Subsequently, an executing command control means 5 controls each executing command of the generated scroll command train, an editing means 6 executes the scroll processings in the upper, lower, right and left directions and changes a display start position on an editor buffer, and a screen display means 8 displays a screen image of a 1-screen portion on a screen of a terminal from the display start position on the changed editor buffer. In such a way, the screen display can be allowed to scroll flexibly in a free direction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for realizing diagonal scrolling in an interactive text editor, and more particularly to a method for realizing diagonal scrolling in an interactive text editor that also scrolls the screen in a diagonal direction.

[Conventional technology]

Conventionally, in this type of interactive text editor, when editing text, the contents of the editor buffer displayed on the screen could only be scrolled in the vertical or horizontal direction.

[Problem to be solved by the invention]

In the conventional interactive text editor mentioned above, the contents of the editor buffer displayed on the screen could only be scrolled vertically or horizontally, so in order to scroll diagonally, you must first scroll vertically. The problem is that the user has to scroll left and right again after the page has been moved, and cannot quickly scroll in any direction.

In view of the above-mentioned points, the object of the present invention is to provide a combination of scroll processing in the upward, downward, leftward and rightward directions.

An interactive text editor that enables diagonal scrolling in the bottom left, top right, and bottom right directions, allowing you to flexibly scroll the screen display in any direction as if the screen were moving around on the editor buffer. The object of the present invention is to provide a method for realizing diagonal scrolling.

[Means to solve the problem]

The method for realizing diagonal scrolling in the interactive text editor of the present invention includes an input key analysis means that analyzes keys manually pressed from the keyboard and determines the direction of scrolling, and a scroll process in the direction specified by this input key analysis means. above to do.

Scroll processing that combines execution commands that execute scroll processing in the down, left, and right directions, respectively)
' A scroll command sequence creation means for creating a column, an execution command control means for controlling each execution command of the scroll command sequence created by this scroll command sequence creation means, and each execution command controlled by this execution command control means. an editing means for changing the display start position on the editor buffer by performing scroll processing in the upward, downward, right and left directions; and screen display means for displaying the screen image on the screen of the terminal.

[Effect]

In the method for realizing diagonal scrolling in the interactive text editor of the present invention, the input key analysis means analyzes keys manually pressed from the keyboard to determine the direction of scrolling, and the scroll command string creation means is designated as the input key analysis means. In order to perform scroll processing in the direction, a scroll command string is created by combining execution commands for executing scroll processing in the up, down, left, and right directions, and the execution command tnf21 means is created by the scroll command string creation means. The editing means controls each execution command in the scroll command string, and the editing means executes scroll processing in the upward, downward, rightward, and leftward directions according to each execution command controlled by the execution command control means, and determines the display start position on the editor buffer. is changed, and the screen display means displays one screen worth of double-sided images on the screen of the terminal from the display start position on the editor buffer changed by the editing means.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a method for realizing diagonal scrolling in an interactive text editor according to an embodiment of the present invention. Key analysis means 2, scroll command string creation means 3-, scroll command string 4, execution command control means 5, upward scroll processing 61. Down scroll process 62. Left scroll processing 63° right scroll processing 649 consists of editing means 6 including display start line position change means 65 and display start digit position change means 66, display start position storage area 7, and screen display means 8. Note that in FIG. 1, the symbol IO indicates a monthly text editor.

The input key analysis means 2 analyzes the keys input from the terminal 1 and determines the direction of scrolling.

The scroll command string creation means 3 performs an upward scrolling process 61. to perform diagonal scrolling. Down scroll process 6
2. Left scroll processing 63 and right scroll processing 64
A combination of execution commands for executing each of the above is created as a scroll command sequence 4.

The execution command control means 5 controls the execution commands until there are no execution commands in the scroll command string 4.

The display start line position changing means 65 in the editing means 6 executes the upward scrolling process 61 and the downward scrolling process 62 according to the execution commands for the upward scrolling process 61 and the downward scrolling process 62 passed from the execution command control means 5, and displays the display. The display start line position in the start position storage area 7 is changed.

The display start digit position changing means 66 in the editing means 6 executes the left scrolling process 63 and the right scrolling process 64 according to the execution commands for the left scrolling process 63 and right scrolling process 64 passed from the execution command control means 5. to change the display start digit position in the display start position storage area 7.

The screen display means 8 reads a screen image for one screen from the editor buffer 9 (see FIG. 2) based on the display start line position and display start digit position stored in the display start position storage area 7, and displays it on the terminal 1. displayed on the screen.

Referring to FIG. 2, the display start position storage area 7 stores a display start line position X and a display start digit position Y.

The display start line position X indicates the line position at the upper left end of the portion of the editor buffer 9 that is displayed on the screen of the terminal 1.

The display start digit position Y indicates the digit position at the upper left end of the portion of the editor buffer 9 that is displayed on the screen of the terminal 1.

Referring to FIG. 3, the processing of the diagonal scroll implementation method in the interactive text editor of this embodiment includes a diagonal scroll key input step 31, a scroll direction determination step 32, an upper left scroll command string creation step 33, and a lower left scroll command string creation step 33. Scroll command row creation step 34, upper right scroll command row creation step 35, lower right scroll command row creation step 36, execution command presence/absence determination step 37, execution command determination step 38, display start line position up Step 39, display start line position 1 down step 40, display start digit value II
It consists of an up step 41, a display start digit position l down step 42, a next execution command transition step 43, and a screen display step 44.

Next, the operation of the diagonal scroll implementation method in the interactive text editor of this embodiment configured as described above will be explained.

For example, assume that the screen of terminal 1 is as shown in screen 3 shown in FIG. At this time, display start position storage area 7
The display start line position “3°” and the display start digit position “2” are stored in , and the screen image of screen ■ corresponds to the part surrounded by the dotted line in the editor buffer 9. .

Here, a case will be described in which the upper left scroll key is pressed in the above state.

When the diagonal scroll key is pressed on the terminal l, the input key analysis means 2 manually presses the diagonal scroll key (step 31) and analyzes the input diagonal scroll key to determine the scroll direction (step 32). Then, the input key analysis means 2 instructs the scroll command string creation means 3 to create a scroll command string 4 in the direction of the analysis result (steps 33 to 36). Here, the scroll direction is determined to be the upper left, The scroll command string creating means 3 is instructed to create a scroll command string 4 in the upper left direction in step 33.

The scroll command string creation means 3, which has been instructed by the input key analysis means 2 to create a scroll command string 4 in the upper left direction, generates a scroll command string in the upper left direction consisting of an execution command for an upward scroll process 61 and an execution command for a left scroll process 63. Create command string 4.

When the creation of the scroll command sequence 4 is completed by the scroll command sequence creation means 3, the input key analysis means 2
Then control is transferred to the execution command control means 5, and the execution command control means 5 determines whether an execution command exists in the scroll command string 4 (step 37).

Here, since it is determined that there is an execution command, the execution command control means 5 next determines in which direction (upward, downward, leftward, rightward, or leftward) the execution command is for scroll processing (step 38), and based on the determination result, the editing means 5 The display start line position changing means 65 or the display start digit position changing means 66 is activated (steps 39 to 42). Therefore, in step 38, it is first determined to be an execution command for the upward scroll process 61, and the display start digit position changing means 66 of the editing means 6 is executed.
is activated and an execution command for the upward scrolling process 61 is passed (step 39).

Upon receiving the execution command for the upward scrolling process 61, the display start line position changing unit 65 executes the upward scrolling process 61 according to the passed execution command for the upward scrolling process 61, and changes the display start position in the display start position storage area 7. Display start line position “
Increase 3” by 1 to make it “4”.

When the editing means 6 finishes changing the display start line position or display start digit position in the display start position storage area 7 (in this case, when the 1-up process for the display start line position ends), the execution command Regulation? 1 means 5 positions the next execution command in the scroll command sequence 4 (step 43), and executes step 37 for the next execution command.
~ Performs the process of step 42. Here, since the next execution command is the execution command of the left scroll process 63, the execution command of the left scroll process 63 is passed to the display start digit position changing means 66 of the editing means 6 ( Step 41
Upon receiving the command to execute the left scroll process 63, the display start digit position changing unit 66 of the editing unit 6 executes the left scroll process 63 according to the command to execute the left scroll process 63.
is executed, and the display start digit position "2" in the display start position storage area 7 is incremented by 1 to become "3".

Next, after the processing in step 43, the execution command control means 5 determines in step 37 that there is no execution command in the scroll command string 4, and passes control to the screen display means 8 (step 44).

The screen display unit 8, which has been given control from the execution command control unit 5, refers to the display start position storage area 7 and displays one screen from the display start line position “4” and the display start column position “3” of the editor buffer 9. The screen image (the part surrounded by a solid line of the editor buffer 9 shown in FIG. 4) is taken out and displayed on the screen of the terminal l.

As a result of the above processing, the screen of the terminal 1 transitions from the screen ■ shown in FIG. 4 to the screen ■, and the upper left diagonal scrolling is realized.

〔Effect of the invention〕

As explained above, the present invention enables diagonal scroll processing in the upper left, lower left, upper right, and lower right directions by combining scroll processing in the upward, downward, left, and right directions. This has the effect of allowing the user to flexibly scroll the screen display in a more free direction when the screen is moving around.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a diagonal scroll implementation method in an interactive text editor according to an embodiment of the present invention, FIG. 2 is a diagram showing the contents of the display start position storage area in FIG. 1, and FIG. 4 is a flowchart showing the processing of the diagonal scroll implementation method in the interactive text editor of this embodiment, and FIG. 4 is a diagram showing an example of a screen display according to the diagonal scroll implementation method in the interactive text editor of this embodiment. In the figure, 1...Terminal, 2...Input key analysis means, 3...Scroll command string creation means, 4...Scroll command string, 5...Execution command control means, 6...Editing Means, 7...Display start position storage area, 8...Screen display means, 9...Editor buffer, 10...Interactive text editor, 61...Upward scrolling process, 62...Downward scrolling Processing, 63...Left scrolling process, 64...Right scrolling process, 65...Display start line position changing means, 66...Display start digit position changing means.

Claims (1)

[Claims] Input key analysis means for analyzing keys input from a keyboard to determine the direction of scrolling; A scroll command string creation means that creates a scroll command string that is a combination of execution commands that execute scroll processing in the left and right directions, and controls each execution command in the scroll command string created by the scroll command string creation means. an execution command control means; an editing means for changing the display start position on the editor buffer by executing scroll processing in the upward, downward, rightward, and leftward directions according to each execution command controlled by the execution command control means; 1. A method for realizing diagonal scrolling in an interactive text editor, comprising screen display means for displaying a screen image of one screen from a display start position on an editor buffer changed by an editing means on a terminal screen.