JP2001175451A - Display processor and plotting method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sense of operation of a person who operates a screen. SOLUTION: A plotting sequence deciding part 305 is arranged before a plotting processing part 307, so that the plotting sequence of selection items present inside a scroll screen can be decided. Then, a screen is plotted by the plotting processing part 307 within a plotting range calculated by a plotting boundary deciding part 303 based on the plotting sequence. Thus, it is possible to preferentially plot the area considered by a person who is manipulating the picture, and to obtain a display processor with very satisfactory responsiveness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a display processing device and a display processing method for realizing scrolling on a screen with scrolling drawn on a screen having a function of displaying graphics such as AV equipment or a personal computer.

[0002]

2. Description of the Related Art In recent years, a user using a GUI (graphical user interface) having a function of displaying graphics and performing input / output with a user on a screen has been proposed.
Interfaces are becoming popular. The user interface of a personal computer is a pointer input using an input device such as a mouse, whereas the user interface is mounted on the upper part of the main unit of a digital CS terminal, a television receiver, a video tape recorder, or a television receiver. For other home appliances such as set-top boxes that are used by the general public, remote control input is the mainstream, so the scroll operation is drawn as one unit for each selection item that composes the screen, regardless of the scrolling direction. Are drawn in order from the first item.

[0003]

Specifically, FIG.
In the state where the selection items 502 to 504 among the selection items 501 to 506 are displayed on the screen as shown in FIG.
When the user scrolls upward to display the target selection item 501 on the screen, the user does not feel uncomfortable with the operability, but the selection item 5 in FIG.
04 is highlighted as a pointer to indicate that it is selectable, the desired selection item 505 is displayed.
Is scrolled downward so that is displayed on the screen, the first selection item 503 is first drawn as shown in FIG. 10A, and then the selection item 504 shown in FIG. After the drawing, the selection item 505 shown in FIG. 10C is drawn last, and becomes the drawing state shown in FIG. 9B.

As described above, in the scrolling direction (downward scrolling in the above case), there is a problem that the drawing of the selection item 505 is delayed and the operational feeling is poor particularly in the case of home electric appliances having a slow drawing speed.

[0005]

According to the present invention, the drawing order of each item is managed instead of controlling and drawing the entire items constituting the screen as one unit, and the drawing processing unit considers the drawing order. By controlling each item individually
The drawing order is controlled for each item. That is, by using the present invention, the drawing order is finely set for each selection item.

[0006] The display processing device according to claim 1 of the present invention comprises:
An event processing unit that detects an input event and analyzes the input event, a scroll recognition unit that recognizes that the input event is an event that causes scrolling of a screen, and the drawing boundary condition and a scroll direction after scrolling. A drawing boundary condition determining unit that determines a new drawing boundary condition from a drawing boundary condition storage unit that stores the drawing boundary condition; a display content storage unit that holds item information of interest on a screen; A drawing processing unit that determines a drawing order according to a boundary condition and the scroll direction and performs a drawing process.

According to a second aspect of the present invention, there is provided a display processing apparatus.
A drawing order determining unit that obtains the drawing boundary condition and the item information, calculates a state after the scroll processing, and determines a drawing order from the drawing boundary condition and the item information focused on the screen. It is characterized by. Claim 3
The drawing method of the display processing device described above focuses on the steps of calculating and holding the drawing boundary condition when ordering and drawing each item when screen scrolling occurs only in one-dimensional direction, and within the screen Acquiring and setting item information, calculating a state after performing scroll processing, and determining a drawing order from the drawing boundary condition and a scroll direction. .

According to a fourth aspect of the present invention, in the drawing method of the third aspect, the drawing order is determined from the drawing boundary condition when the screen scrolls in the two-dimensional direction and the item information focused on the screen. It is characterized in that it is determined.
According to a fifth aspect of the present invention, there is provided a recording medium on which a program necessary to execute the drawing method according to the third or fourth aspect is recorded.

According to a sixth aspect of the present invention, in the drawing method of the display processing device, the selection items closest to the scroll direction are drawn first, and then the selection items adjacent in the opposite direction to the scroll direction are sequentially drawn to display on the screen. It is characterized by updating a selection item. 8. The drawing method of the display processing device according to claim 7, wherein a part of the selection items in the array of a plurality of rows and a plurality of columns are displayed on a screen, and scrolling is performed so as to display any of the target selection items on the screen. In addition, drawing is performed in order from the last item line.

According to another aspect of the present invention, there is provided a drawing method for a display processing apparatus, wherein a part of selection items in an array of a plurality of rows and a plurality of columns are displayed on a screen, and one of target selection items is displayed on the screen. When scrolling, specify the selected item of interest after scrolling according to the currently selectable selection item and the specified scroll direction, and scroll within the chevron with the specified selection item as the vertex. Is drawn first, and then the selected item group is drawn in order in the direction opposite to the scroll direction.

According to a ninth aspect of the present invention, there is provided a drawing method for a display processing apparatus, wherein a part of selection items in a plurality of rows and a plurality of columns are displayed on a screen, and any of the target selection items is displayed on the screen. In the case of scrolling, the arrangement of the plurality of rows and columns is such that the vertical direction of each selection item is aligned,
On a screen that includes selection items that are not aligned in the horizontal direction, if the scroll direction is the direction of the aligned selection items, and if you want to scroll in the vertical direction of the aligned selection items, It is characterized in that a selection item group including a selection item to be focused on after execution and the same as the scroll direction is drawn first, then a selection item group on both sides is drawn, and a next selection item group is drawn.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. (Embodiment 1) FIGS. 1 to 3 show (Embodiment 1). In this (Embodiment 1), when scrolling upward from the state shown in FIG. 9A, drawing is performed in order from the first item in the same manner as in the related art, and when scrolling downward, FIG. 3 (a) to 3 (c), drawing is performed in order from the last item. More specifically, the selection item 505 closest to the scroll direction is drawn first, and then the selection items 504 and 503 adjacent in the opposite direction to the scroll direction are sequentially drawn so that the necessary selection items on the screen are displayed in a short time. A system that can be updated to the latest state and has a good response to an input can be realized.

FIG. 1 shows a display processing apparatus for realizing the drawing method of FIG. The event processing unit 101 receives an input event and analyzes the meaning of the input event. The scroll recognition unit 102 recognizes whether the screen on which the input event has occurred scrolls. The drawing boundary condition determination unit 103 acquires the current drawing boundary condition from the drawing boundary condition storage unit 104 according to the scroll direction, determines a new drawing boundary condition, and stores the new drawing boundary condition in the drawing boundary condition storage unit. The drawing processing unit 105 acquires from the display content storage unit 106 the drawing boundary condition and information on the item of interest in the screen, and sequentially draws items on the screen according to the drawing boundary condition and the scroll direction.

FIG. 2 shows a flowchart of the display processing apparatus shown in FIG. Note that the example described here assumes that the screen is scrolled downward. Similar considerations apply to scrolling in other directions. In (Step 201), when an input event occurs, the event processing unit 101 acquires the input event.

In (Step 202), the scroll recognizing unit 102 checks whether the input event is an event accompanied by screen scrolling. If the input event is not accompanied by scrolling, the process exits the flowchart shown in FIG. 2 and ends the input event processing. . If it is determined in step (202) that scrolling is involved, (step 203) is executed. In step 203, the drawing boundary condition determination unit 103 draws, from the drawing boundary condition storage unit 104, a part of the screen currently drawn on the screen, a part drawn on the screen and a part not drawn. Get boundary conditions.

As an example of the drawing boundary conditions, in the state before scrolling shown in FIG. 9A, the drawing boundary conditions are a selection item 502 and a selection item 502 which are the first and last items of the drawing item. 504 is determined. (Step 2
In 04), the drawing boundary condition determining unit 103 calculates screen information to be newly drawn on the screen based on the drawing boundary conditions and taking into account the scroll direction, and determines the portion to be drawn on the screen. The drawing boundary condition of the part that is not drawn
Calculate anew.

By scrolling the screen, the items constituting the screen are changed to selection items 503 to 505. for that reason,
The drawing boundary condition is changed to items 503 and 505, which are the first and last items of the drawn item. In (Step 205), the drawing boundary condition determination unit 103 stores the newly calculated drawing boundary condition in the drawing boundary condition storage unit 104.

In (step 206), the drawing processing unit 10
5 acquires various screen information for drawing a screen from the display content storage unit 106, and draws only necessary drawing items based on the drawing boundary condition. At this time, the drawing order is determined from the item closest to the scroll direction, that is, the item of interest, from the scroll direction to the opposite direction.

The selection items 503 to 505 existing between the selection items 503 to 505, which are the drawing boundary conditions, are the drawing items. In this case, the drawing order is such that the item 505 closest to the scroll direction is drawn first. And item 5 which is an item adjacent in the direction opposite to the scroll direction.
04, the item 503 is sequentially drawn. In this way, when the screen scrolling occurs only in one-dimensional direction, the necessary items on the screen are updated to the latest state in a short time while considering the scrolling direction of the screen, thereby responding to the input. A good system can be realized.

(Embodiment 2) FIGS. 4 to 6 show (Embodiment 2). In this (Embodiment 2), as shown in FIG. 6A, the selection item 60 out of the selection items 601 to 612 is selected.
With 1 to 619 displayed on the screen in 3 × 3,
When scrolling downward so as to display any of the desired selection items 610 to 612 on the screen, as shown in FIG. 6B, the C row 615 is sequentially arranged from the D row 616 which is the last item row. , B row 614 in this order.

FIG. 4 shows a display processing apparatus for realizing the drawing method of FIG. The event processing unit 301 receives an input event and analyzes the meaning of the input event. The scroll recognition unit 302 recognizes whether the screen on which the input event has occurred scrolls. The drawing boundary condition determining unit 303 acquires the current drawing boundary condition from the drawing boundary condition storage unit 104 according to the scroll direction, determines a new drawing boundary condition, and stores the new drawing boundary condition in the drawing boundary condition storage unit.

The drawing order determining unit 305 obtains drawing boundary conditions and item information of interest in the screen from the display content storage unit 306, calculates the state after the scroll processing,
Determine the drawing order. The drawing processing unit 307 sequentially draws items on the screen according to the drawing order and the drawing boundary condition.

FIG. 5 shows a flowchart of the display processing device shown in FIG. Note that the example described here assumes that the screen is scrolled downward. Similar considerations apply to scrolling in other directions. In (Step 401), when an input event occurs, the event processing unit 301 acquires the input event. In (Step 402), the scroll recognizing unit 302 checks whether the input event is an event accompanied by screen scrolling. If the input event is not accompanied by scrolling, the process exits the flowchart shown in FIG. 5 and ends the input event processing.

If it is determined in step (402) that scrolling is involved, step (403) is executed. In (Step 403), the drawing boundary condition determination unit 30
3 obtains, from the drawing boundary condition storage unit 304, the drawing boundary conditions of the part drawn on the screen and the part not drawn on the screen currently drawn on the screen. Assuming that the selection items 601 to 609 constituting the screen are displayed on the screen, the drawing boundary conditions are the first and last selection items of the drawn item, and the line A of the item group perpendicular to the scroll direction is set. 613 and C row 615 are determined.

In (Step 404), the drawing boundary condition determining unit 303 calculates screen information to be newly drawn on the screen based on the drawing boundary conditions, taking into account the scroll direction, and draws the image on the screen. The drawing boundary conditions of the drawn portion and the undrawn portion are newly calculated. By scrolling the screen, the selection items constituting the screen are selection items 604.
To 612. Therefore, the drawing boundary condition is changed to B row 614 and D row 616 of a selection item group which is the first and last selection items of the selection item being drawn and is perpendicular to the scroll direction.

In (Step 405), the drawing boundary condition determination unit 303 stores the newly calculated drawing boundary condition in the drawing boundary condition storage unit 304. (Step 40
In 6), the drawing order determination unit 305 sets the display content storage unit 3
From 06, screen information of each item is obtained. (Step 40
In 7), the drawing order determination unit 305 determines the drawing order of each item based on the screen information and the drawing boundary condition.

In the drawing boundary condition, the selection item group closest to the scrolling direction, that is, the item group including the selection item of interest is determined to be in the opposite direction. Item group D row 61 from 614
6, the items 604 to 612 existing as the drawing selection items are displayed in the drawing order. In this case, the selection item group D row 616 closest to the scrolling direction is drawn first, and then the drawing selection items are adjacent in the direction opposite to the scrolling direction. The selection item group C row 615 and the selection item group B row 614 are sequentially drawn from the selection item to be performed.

In (Step 408), the drawing order determination unit 305 sets the drawing order in the display content storage unit 306. In (Step 409), the drawing processing unit 307
Only necessary items are drawn based on the drawing order. Selection items 604 to 612 between the selection item group B row 614 and the selection item group D row 616 which are the drawing boundary conditions.
Are the drawing selection items. In this example, first, the selection items 610 to 612 are drawn, and then the selection items 607 to 60
9. Then, the selection items 604 to 606 are drawn. It is also possible to finely determine the order of each selection item included in the selection item group.

For example, the drawing order of each of the selection items 610 to 612 is changed from a state in which the pointer is displayed in reverse video as a pointer indicating that the selection item 611 is selectable, with the selection item 611 as the center. Similarly, the drawing order is determined such as the selection item 611, the selection item 610, and the selection item 612. Selection item group C row 61
5. The same applies to the selection item group B row 614.

In addition to the example of (Step 407), the drawing order can be determined as in the following (1) and (2). (1) An example of determining the drawing order will be described with reference to FIG. The drawing boundary conditions after the downward scrolling are the selection item group B row 714 and the selection item group D row 716. According to the currently selectable selection item and the designated scroll direction, if the selection item to be focused after scrolling is set as a selection item 711, a mountain-shaped line having the selection item as a vertex is described as shown in FIG. I do. Similarly, a chevron-shaped line is described as shown in FIG. 7 to a selection item 711, a selection item 708, a selection item 705, and a selection item 702 in a direction opposite to the scroll direction of the selected selection item of interest as necessary. In the example of FIG. 7, the selection items 704 to 704 existing between the selection item group B row 714 and the selection item group D row 716, which are the drawing boundary conditions, are set.
712 is the above-mentioned drawing selection item. In this case, the drawing order is such that the selection item group E717 closest to the scroll direction in the mountain-shaped line is drawn first, and then the selection item group E717 in the direction opposite to the scroll direction. F718, selection item group G7
19. The selection item group H720 is drawn. However, the selection item 702 that is out of the drawing boundary condition is not drawn. Further, it is also possible to finely determine the drawing order of each selection item included in the selection item groups E717 to H720.

(2) An example of determining the drawing order will be described with reference to FIG. This example is an electronic program guide (EP
As shown in FIG. 7, the screen including the selection items, such as G), in which the selection items are arranged in the vertical direction but not arranged in the horizontal direction, is displayed in the direction of the arranged selection items, that is, in FIG. This is effective when scrolling up and down.
To scroll in the vertical direction of the aligned selection items, that is, in the horizontal direction in FIG. 7, (step 407)
The drawing order is determined according to the following. The drawing boundary condition in the vertical direction of the aligned selection items is set to an appropriate value based on the unit of the aligned selection items (for example, time in the case of an EPG).

Assuming that the selected item to be focused on after performing the downward scroll is the selected item 802, a column of the selected item group C including the selected item and having the same scroll direction is drawn first, and then the selected item group B column on both sides is selected. Draw an item group D column. Further, the adjacent selection item group A column is drawn. The drawing order of each selection item included in the selection item groups A to D is as follows.
In accordance with (Step 206), detailed settings such as drawing from a selection item in the scroll direction to a selection item on the opposite side in the scroll direction and determining a drawing order for each selection item are also possible.

As described above, in addition to the case where the scroll direction is one-dimensional as in (Embodiment 1), even when the scroll direction is two-dimensional, the scroll direction is taken into consideration while considering the scroll direction.
Necessary selection items on the screen can be updated to the latest state in a short time, and a system with good responsiveness to input can be realized. Therefore, according to the present invention, it is possible to realize a system having good responsiveness to a user input, and its practical effect is great.

The program required to execute the flowchart shown in FIG. 2 or FIG. 5 or the drawing process shown in FIG. 7 and FIG. 8 in each of the above-described embodiments is distributed by being recorded on a recording medium. The drawing process of the present invention can be realized by reading and executing the program on the medium.

[0035]

As described above, according to the present invention, regardless of the scrolling direction, scrolling can be performed in order from selection items newly displayed on the screen. Therefore, it is possible to draw sequentially from a focused part. Also, even when scrolling repeatedly, the part of interest is drawn first,
It is possible to smoothly shift to the next scroll operation.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a display processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart of the embodiment.

FIG. 3 is an explanatory diagram of a drawing process of the display processing device according to the embodiment;

FIG. 4 is a configuration diagram of a display processing device according to a second embodiment of the present invention.

FIG. 5 is a flowchart of the embodiment.

FIG. 6 is an explanatory diagram of a drawing process of the display processing device of the embodiment.

FIG. 7 is an explanatory diagram of a drawing process of a modification of the display processing apparatus of the embodiment.

FIG. 8 is an explanatory diagram of a drawing process of another modified example of the display processing device of the embodiment.

FIG. 9 is an explanatory diagram of a screen before and after scrolling in a drawing process of a conventional display processing device.

FIG. 10 is an explanatory diagram of a drawing process of the conventional example.

[Explanation of symbols]

 Reference Signs List 101 Event processing unit 102 Scroll recognition unit 103 Drawing order determination unit 104 Drawing boundary condition storage unit 105 Drawing processing unit 106 Display content storage unit 201 Acquisition of input event 202 Recognition of presence / absence of screen scrolling 203 Acquisition of drawing boundary condition 204 Calculation 205 Setting of drawing boundary conditions 206 Drawing processing 301 Event processing unit 302 Scroll recognition unit 303 Drawing order determination unit 304 Drawing boundary condition storage unit 305 Drawing order determination unit 306 Display content storage unit 307 Drawing processing unit 401 Input event acquisition 402 Screen scroll 403 Acquisition of drawing boundary conditions 404 Calculation of drawing boundary conditions 405 Setting of drawing boundary conditions 406 Acquisition of screen information 407 Calculation of drawing order 408 Setting of drawing order 409 Drawing processing

Claims (9)

[Claims] An event processing unit that detects an input event and analyzes the input event; a scroll recognition unit that recognizes that the input event is an event that causes a screen to scroll; A drawing boundary condition determining unit that determines a new drawing boundary condition from a condition and a scroll direction; a drawing boundary condition storage unit that stores the drawing boundary condition; and a display content storage that holds item information of interest on the screen And a drawing processing unit that determines a drawing order according to the drawing boundary condition and the scroll direction and performs a drawing process. 2. A drawing order determining unit that acquires the drawing boundary condition and the item information, calculates a state after a scroll process, and determines a drawing order from the drawing boundary condition and item information focused on a screen. 2. The device according to claim 1, wherein
The display processing device according to the above. 3. A step of calculating and holding a drawing boundary condition in ordering and drawing each item when scrolling of a screen occurs only in a one-dimensional direction, and information on an item of interest in the screen. Acquiring and setting the image, calculating the state after performing the scrolling process, and determining the rendering order from the rendering boundary condition and the scroll direction. Method. 4. The display processing apparatus according to claim 3, wherein a drawing order is determined from a drawing boundary condition when scrolling of the screen occurs in a two-dimensional direction and item information focused on in the screen. Drawing method. 5. A recording medium on which a program necessary to execute the drawing method according to claim 3 or 4 is recorded. 6. A drawing of a display processing device for drawing a selection item closest to a scroll direction first, and then sequentially drawing selection items adjacent in a direction opposite to the scroll direction to update necessary selection items on a screen. Method. 7. When displaying a part of selection items in an array of a plurality of rows and a plurality of columns on a screen and scrolling to display any of the target selection items on the screen, in order from the last item line. The drawing method of the display processing device for drawing. 8. A method according to claim 1, further comprising the steps of: displaying a part of the selection items in an array of a plurality of rows and a plurality of columns on a screen; and scrolling the display so that any of the desired selection items is displayed on the screen. Identify the selected item of interest after scrolling according to the item and the specified scroll direction, and first draw the selected item group closest to the scroll direction among the chevron lines with this specified selection item as the vertex And
Then, a drawing method of the display processing device for sequentially drawing the selection item group in the direction opposite to the scroll direction. 9. When displaying a part of selection items of an array of a plurality of rows and columns on a screen and scrolling to display any of the target selection items on the screen, the plurality of rows and columns of the plurality of columns are displayed. The arrangement is a screen including selection items that are not aligned in the horizontal direction even though the vertical direction of each selection item is aligned, and when the scroll direction is the direction of the aligned selection items, When scrolling in the vertical direction of the aligned selection items, first draw the selection items that are the same as the scroll direction, including the selection item of interest after scrolling, then draw the selection items on both sides, and then draw The drawing method of the display processing device that draws the selected item group.