JPS62154067A - Display device for deformation of window - Google Patents

Abstract

PURPOSE:To discriminate whether a window displayed on a picture can perform an editing operation or not by adding attribute data of a tilt angle to window display data and providing a mechanism for changing the shape of the window according to the value of the tilt angle when it is changed. CONSTITUTION:When the rectangular window consisting of four sides of (a), (b), (c), (d) is deformed into a distorted window consisting of sides of a, b', c', d', the ratio of the quantity of movement D and the length L of a vertical side is obtained, a value reverse tangent to the value is obtained as the tilt angle, and the value is fed to a window arrangement management mechanism 2. The window arrangement management mechanism 2 calculates a coordinate value of the window, overlapping data of the window and a display part of the distorted window from the tilt angle applied from a window deforming device 7 and the result is fed to a window picture drawing processor 3. Thereby, the window picture drawing processor 3 extends the display part of the distorted window into dot pattern data.

Description

[Detailed description of the invention] (Field of application of the invention) The present invention relates to a window display device.

[Background of the invention]

In a multi-window display system, conventional window data includes "Small Talk".
TALK)-80; pages 383-388: Addison Unizuri Publishing, 1983.

Although it has data for the width, height, and display position of the window, only a rectangular window can be displayed from that data, and changing the shape of the window was not taken into account.

[Purpose of the invention]

An object of the present invention is to provide a modified display of a window.

[Summary of the invention]

A feature of the present invention is that attribute data of the tilt angle is added to the window display data, and by changing the tilt angle, a distorted window can be displayed.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG. 1st
The figure is a block diagram schematically showing an example of a device for displaying a modified window.

To input the window, specify the position of the diagonal point of the window using the coordinate input bag @ (not shown) in the window input mechanism 1, and send the coordinate value to the window management arrangement mechanism 2 via the data line 12. Input by Window management arrangement mechanism 2.

For each window displayed on the display screen, data on the window's seat value, tilt angle, and window overlapping state are retained, the display area of each window is calculated from these data, and the results are displayed on the window. Pass it to the drawing processor 3. The window drawing processor 3 is a bitmap memory device that develops dot pattern data based on the data passed from the window arrangement management mechanism 2 and passes it to the bitmap memory device 4 in order to display a window.
! 4 displays a dot image corresponding to each coordinate point on the display screen. The display mechanism 5 is the bitmap memory device! 4 is scanned, dot image data corresponding to each coordinate point is sequentially read out and displayed on the display screen 6.

Next, a method for deforming a window will be explained using the processing flow shown in FIG. 2. " in window input mechanism 1
When the "window transformation" key is pressed, a key input is accepted in process 101, and a determination process 102 is performed to determine that the input key is the "r window transformation" key. Then, among the windows displayed on the display screen, use the coordinate input device to pick a point within the window that you want to transform, and the pick coordinate values are sent to the window arrangement management mechanism 2 via the data line 12, and the window arrangement The management mechanism 2 performs processing 103 to determine which window has been selected from the coordinate values. The data of the selected window is sent to the window modification device 7. In the window modification device 7, one of the four sides of the window is selected and fixed in a process 701, which will be described in detail later.

In process 702, a destination point is input, and a process 703 is performed to determine whether the side is a horizontal side. If the fixed side is a horizontal side, the amount of movement to move the opposite side left or right is calculated (process 704).
If L is a vertical side, the amount of movement to move the opposite side up and down is calculated (processing 705).

To explain the case of horizontal sides, as shown in Figure 3, a rectangular window with four sides a, b, Q, and d is distorted with four sides a, b', c'+d'. If the window is to be transformed into a vertical window, the ratio L/D between the amount of movement and the length L of the perpendicular side is determined, the arc tangent of that value is determined as the inclination angle (process 706), and this value is used by the window arrangement management mechanism. Send to 2. The window arrangement management mechanism 2 calculates and processes the distorted display portion of the window based on the window coordinate values, the window overlap data, and the tilt angle given from the window transformation device 7 (201), and sends the results to the window drawing processor 3. . In process 301, the window drawing processor 3 develops the distorted display portion of the window into dot pattern data.

To explain the window deformation device 17 in detail, first, in order to select the side to be fixed, the receiver receives the coordinate values input by the coordinate input device via the data 4117, and selects which side of the four sides of the window from the pick coordinate values. Next, the method of inputting the amount of movement for moving the opposite side of the fixed side will be explained for the case of a horizontal side. As shown in Figure 3, when moving the opposite side to the right, pick the destination point q of the point p on the right side of the opposite side, and select the X coordinate value of the destination point q and the point P on the right side of the opposite side. Calculate the difference from the X coordinate value of , and use that value as the amount of movement.

Then, the ratio L/D between the movement amount and the length L of the perpendicular side is calculated, and the arctangent of the calculated value is sent to the window arrangement management mechanism 2 as the inclination angle.

The case of restoring a distorted window to a rectangular window will be explained using the processing flow shown in FIG. 4. When the "cancel window deformation" key in the window input mechanism 1 is pressed, the key input is accepted in process 101, and a process 104 is performed to determine that the input key is the "cancel window deformation" key. Process 103) to select a window by picking a point within the window and sending its coordinate value to the window placement management mechanism 2 via the data line 12. When information about the selected window is sent to the window transformation device 7, the window is For modified @7, set the tilt angle of the window to 90' (process 707) L,
and sends it to the window management mechanism 2.

By providing the window transformation device 7, it is possible to press the "move" key on the window input mechanism 1 for a window displaying a document that is not currently being manipulated, and use the coordinate input device to pick a point within the window. By doing this, the window transformation device f! is moved to one side of the display screen and overlapped. 7 to transform those windows. FIG. 5 shows three windows Wl, W2 . It is a diagram in which W3 is deformed and placed one on top of the other. As shown in Figure 3, by transforming Winton, which is not currently being operated, into a distorted window and placing it on top of one another, an image of stacked papers can be created.

Further, if there are windows that can be edited and windows that cannot be edited, the window arrangement management mechanism 2 sends data of the windows that can be edited to the window modification device t7. In the window deforming device 7,
By setting a certain tilt angle and returning it to the window arrangement management mechanism 2, by transforming the editable window into a distorted window in this way, the window displayed on the screen can be edited. It is possible to clearly tell the user whether it is a window or not.

〔Effect of the invention〕

According to the present invention, since a distorted window can be displayed,
By transforming a window that cannot be edited into a distorted window, it is possible to distinguish whether the window displayed on the screen can be edited or not, and it is also possible to transform a window that cannot be edited into a distorted window and overlap it. By placing it there, it has the effect of giving the impression that paper is being placed there.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an outline of an example of a window transformation display device, FIG. 2 is a diagram of a processing flow of a window transformation operation, FIG. 3 is a diagram of a distorted window, and FIG. 4 is a diagram of a window transformation display device. FIG. 5, which is a diagram of the processing flow of the deformation cancellation operation, is a diagram in which distorted windows are superimposed. 1... Window input mechanism, 2... Window arrangement management mechanism, 3... Window drawing processor, 4...
・Bitmap memory device, 5...Display mechanism, 6...
・Display screen・7°°°window transformation device・
...) Agent: Patent attorney Katsuma Ogawa.゛〜---ノ' 1st 2nd

Claims (1)

[Claims] In a window display device equipped with a window input mechanism, a window layout management mechanism, a window drawing processor, a bitmap memory device, a display mechanism, and a display screen, attribute data of the tilt angle is added to the window display data, and when the tilt angle is changed, the A window transformation display device characterized by having a mechanism for changing the shape of a window according to a value.