JP2638364B2 - Figure management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic management apparatus capable of easily realizing addition, extension, change, etc. of a function for handling a graphic to be arranged and displayed in contact with another graphic.

[0002]

2. Description of the Related Art In recent years, a graphic management apparatus can manage various graphics displayed on a graphic display unit. A conventional graphic management device manages a graphic displayed on a graphic display unit based on the position, size, and degree of overlap, and arranges and displays a figure in contact with another graphic. Was managing the shapes.

[0003]

However, in the conventional graphic management apparatus described above, when a graphic is arranged and displayed in contact with another graphic on the display unit, the position, size, Since the degree of overlap is managed, there is a problem that it takes a lot of time to add, expand, and change a function of handling a figure displayed in contact with another figure.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and is a graphic management apparatus capable of easily realizing addition, extension, and change of a function of handling a graphic to be arranged and displayed in contact with another graphic. The purpose is to provide.

[0005]

In order to achieve the above object, a graphic management apparatus according to the present invention provides a graphic management apparatus for displaying a graphic on another display on a display unit.
The boundary of the figure required to place and display it in contact with the figure
A boundary search unit for searching for a world;
A connection destination storage unit that stores the identifier of the figure being displayed.
Be prepared for each figure, and as the figure changes,
A new boundary with the graphic indicated by the identifier stored in the connection destination storage unit
The world is searched by the boundary search unit of the figure, and the searched boundary
The figure indicated by the identifier stored in the connection destination storage unit based on
It is configured to redraw a figure in contact with a shape .

[0006]

According to the present invention, the boundary search means provided for each figure searches for the boundary of the figure necessary for arranging and displaying the figure in contact with another figure and stores it in the connection destination storage means. By performing drawing processing based on the stored identifiers of other connected graphics, processing required for arranging and displaying graphics in contact with other graphics can be separated from individual functions.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a graphic management device according to an embodiment of the present invention. In FIG. 1, 11 is a message input unit such as a keyboard and a mouse, 12 is a figure management unit for managing figures, 121 is a figure management unit having a figure management list, and 122 executes processing according to an incoming message. A message control unit 123, a drawing processing unit that executes a procedure for drawing a figure, 13 a figure display unit such as a display, 14a, 14b, and 14c a figure object composed of figure data and a procedure for processing the figure data; Is a boundary search procedure unit for searching for a boundary point of a figure, 142 is a message control unit for a figure object, 143 is a drawing procedure unit for drawing a figure, and 144 is a connection for storing the identifier of the object displayed in contact with the object. A destination storage unit 145 is an editing procedure unit for changing the attribute value of the figure, and 146 stores an attribute value of the figure. That is a figure attribute storage unit.

FIG. 2 is a flow chart of the message processing of the graphic management means, FIG. 3 is a flowchart of the graphic drawing processing, and FIG. 4 is a flow chart of the message processing of the graphic object, for the graphic management apparatus configured as described above. The operation will be described with reference to FIG.

First, the operation of the figure management means for a message will be described. When a message (instruction for the graphic management means or graphic object) is input in step 201, the type of the message is checked (step 20).
2) In the case of a drawing request message, the message is notified to the drawing processing unit (step 203).

If the message type is a change message of the selected state, a search is made for a target object from among the graphic objects managed by the graphic management unit in step 204 (a graphic position confirmation message is transmitted to each graphic object, and Check). It is checked whether or not the target object can be searched (step 210). If the target graphic object can be searched, the selected state of the target graphic object is checked (step 211). If the target graphic object is not selected, a message for changing to the selected state is notified (step 210). 213), and if it is in the selected state, a message for changing to the non-selected state is notified (step 213). If the search is not successful in step 210, a message to change to the non-selected state is sent to all the selected objects among the graphic objects registered in the graphic management unit (step 212).

If the message type is object registration in step 205, the object is registered in the graphic management unit (step 206). If the message is an object deletion message, the object is deleted from the graphic management unit (step 208). Then, a drawing request message for the area (the smallest rectangle including the figure) on the figure display unit where the figure was present is issued to the figure management object (step 209).

If the message type is any other type, the message is notified to all of the selected graphic objects registered in the graphic management unit (step 207).

Next, an operation for drawing a graphic on the graphic display unit will be described. When a drawing request message for a rectangular area of the graphic display unit is input in step 301, all the graphics managed by the graphic management unit are processed (step 30).
2) Perform the following processing.

It is checked whether or not the figure of the figure object is within the drawing request area (step 30).
3). If there is a figure in the area, a clipping area for the figure display unit is designated as a drawing request area (step 304), and a drawing procedure unit is executed (step 305).
Draw on the graphic display.

Next, the operation of the graphic object in response to the message will be described. When a message is input in step 401, the type of the message is checked in step 402,
In the case of the search result message of the boundary point of the figure, the editing procedure is executed (step 403), and in step 406, a drawing request message for the smallest rectangular area including the figure is notified to the figure management means.

If the message type is a boundary search request message in step 402, a boundary search procedure is executed (step 404), and in step 407 the search result is notified to the requesting object.

Step 4 for other messages
At step 05, the type of the message is checked, and if the message is a shape change message of the connected graphic object, a boundary search message is issued to the object at step 408. For other messages, the procedure registered in the editing procedure storage is executed (step 40).
9) Then, it is checked whether or not the object has been deleted in step 410. If the object has been deleted, a deletion message is notified to the graphic management object (step 411), and all the objects stored in the connection destination storage unit are deleted. To notify the shape change message (step 41)
4) Yes. If the object has not been deleted, it is checked whether the attribute value of the figure has been changed (step 41).
2) If it is changed, in step 413, a drawing request message for the smallest rectangular area including the figure is notified to the figure management object, and a shape change message is notified to all objects stored in the connection destination storage unit. (Step 414).

As described above, a boundary search procedure section for searching for a boundary point of a figure in each figure and a connection destination storage section for storing an object identifier of a connection destination are provided, and are connected to other figures on the display section. Separating the boundary search procedure when placing and displaying figures from individual functions makes it easy to add, extend, and modify functions that handle figures to be placed and displayed in contact with other figures. A simple graphic management device can be realized.

[0019]

As described above, according to the present invention, a boundary search procedure unit and a connection destination storage unit are provided for each figure, and the boundary search procedure is separated from individual functions to arrange a figure in contact with another figure. It is possible to realize an excellent graphic management device that can easily add, expand, and change a function of handling a graphic to be displayed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a graphic management apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the message processing operation of the graphic management means of the graphic management device according to one embodiment of the present invention.

FIG. 3 is a flowchart illustrating an operation of a graphic drawing process of the graphic management device according to the embodiment of the present invention;

FIG. 4 is a flowchart showing an operation of message processing of a graphic object of the graphic management apparatus according to the embodiment of the present invention;

[Explanation of symbols]

 11 message input unit 12 figure management means 13 figure display unit

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Aki Uchihara 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-63-285675 (JP, A)

Claims (1)

(57) [Claims] 1. A method in which a graphic is brought into contact with another graphic on a display unit.
Find the boundaries of shapes needed to place and display
It is arranged and displayed in contact with the boundary search part and the figure.
A connection destination storage unit that stores the identifiers of figures is provided for each figure.
When the figure is changed, the figure is stored in the connection destination storage unit.
The new boundary with the figure indicated by the
Search by the world search unit, and based on the searched boundary
The figure in contact with the figure indicated by the identifier stored in the
A graphic management device for redrawing .