JPH02109118A - Display device - Google Patents

Abstract

PURPOSE:To improve the operability of a display device by moving a cursor after changing the addition ratio according to the displacement value against a mouse. CONSTITUTION:A microprocessor unit 1 reads the displacement values DELTAx and DELTAy against a mouse 3. Then the unit 1 erases a cursor displayed at the present coordinate position of a bit map display 2 and check whether the value DELTAx or DELTAy read from the mouse 3 is larger than a reference level or not. If so, the displacement value is doubled and added to the cursor display position coordinates to obtain the new cursor coordinates. If not, the displacement value is added to the cursor display position coordinates as it is to acquire the new cursor coordinates. Then A cursor display pattern is written into the new cursor coordinates. Thus the operability and the accuracy are improved for a display device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mouse used in a digital camera device.

[Conventional technology]

FIG. 2 is a block diagram showing a conventional display device. In FIG. 1, (1) is a microprocessor unit, (21 is a microphone [coprocessor unit 1-
(1, 1 is a bit map read and write controlled; +31 is a mouse that indicates the position on the display screen; (4) is a mouse that directs data from the mouse (3) to the microprocessor unit I- (11).
-1- Serial data control device.

Next, the operation will be explained. When the mouse (3) is moved, the relative movement amount and the state of whether a switch on the mouse is pressed or not are determined by the microprocessor unit (1) via the serial data controller 141H at regular time intervals. is read as data. The data is in the format shown in FIG.

The R bit in the first byte indicates the 0N10FF state of the two left and right switches on the mouse -J-, and the logic 11
], TI indicates that the switch has been pressed. The second and third bytes are sent using the mouse (
3) is a relative coordinate value indicating how far it has moved in the X-axis and Y-axis directions.

In the example shown in Figure 4, the current coordinates (
There is a cursor (arrow pattern) at X,,'Y+1.

Read data from mouse (3) (△X□, △y□
) to move to new coordinates (X,, Y2). The flow of these control operations is shown in FIG. The detailed operation will be explained below with reference to FIG. Microprocessor U, -tsu1-
(1) is the displacement l! from the mouse at regular time intervals. (△χ
,.

Read △y+l. Next, the cursor displayed at the current coordinate position of the micro-arrocera unit +- (], , I erases the cursor displayed at the current coordinate position of the bit machino de ispshi i (2).

Part 1. Add the displacement amount (△χ1.△y+) to the cursor display position coordinates (X+, y+l) (7. Calculate the new cursor coordinates (X2°Y2). Next, write the cursor display position coordinates to the new cursor coordinates. By repeating this action, the cursor moves in the direction indicated by the mouse.

[Problem to be solved by the invention]

Conventional display devices are configured as described above, so in order to move the car/noll on the display screen, it is necessary to move the mouse in the desired direction without moving the mouse. Also, due to the operation space, hold the mouse, bring it back to your hand, and do not move it in the direction you want to move it again.Operation 1-
There are some challenges.

This invention was made in order to solve the problem of ``two feet'', and one object is to provide a display device that can move a cursor using a mouse quickly and with high precision.

[Means to solve the problem]

The display device according to the present invention compares the amount of displacement from the mouse with a previously set reference value, and changes the method of adding the amount of movement based on the result.

[For production]

In the display device cursor according to the present invention, the width of movement of the cursor changes as the amount of movement from the mask changes.

[Embodiments of the invention]

Two embodiments of this invention will be described below with reference to the drawings. In Figure 2, (I) is microphone + 1 processor unit l-, (21I!
- bit map display, (311i display picture 1ri7, , j:.

(4) is a serial data control device that relays data from the mouse (3) to the microprocessor.

Next, the operation will be explained. It is assumed that the reference value of the displacement amount set in advance is 31. Displacement amount △X from mouse (3)
, Δy is 31 or more.

The coordinate update process is performed by doubling the amount of displacement. The amount of displacement is 3
If it is less than 1, the amount of displacement is added as is to the current cursor coordinates as before.

The control operation of the above cursor movement process will be explained with reference to FIG. Read the displacement amounts Δχ and Δy from the mouse (3).

Next, the microprocessor unit (1) erases the cursor displayed at the current coordinate position on the bitmap display (2). △X read from mouse
Or check whether Δy is 31 or more. If 31
'', if the amount of displacement is larger than that, the amount of displacement is doubled and added to the cursor display position coordinates to obtain new cursor coordinates. If displacement △
If X or Δy is less than 31, the amount of displacement is added to the cursor display position coordinates to obtain new cursor coordinates. After that, write the cursor display pakuon on the rupture/-vine coordinates.

In addition, the reference value to be set on the recording layer side is -・
However, by providing a plurality of these and finely adjusting control, the same effect can be achieved.

〔Effect of the invention〕

As described above, in this invention, since the movement of Kerr/Noll is configured to change the addition ratio depending on the amount of displacement from the mouse, it has the effect of providing good operability and high accuracy. There is 1゜

[Brief explanation of drawings]

FIG. 1 shows a display according to an embodiment of the present invention! . FIG. 2 is a flowchart of the control operation of the display device according to the embodiment of the present invention.
FIG. 3 is an explanatory diagram of data read from a mouse, FIG. 4 is an explanatory diagram of cursor movement, and FIG. 5 is a control operation flow of a conventional display device.

Claims (1)

[Claims] Displacement amount read from the mouse on the display device △
The feature is that x and △y are compared with a preset reference value, and when they are above the reference value, the ratio to be added to the current coordinates is increased, and when it is less than the reference value, the ratio is added as is and the cursor is moved. display device.