JPH0746307B2 - Display device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly to a display device for displaying a window and a scroll bar representing a range of display data in the window for a data resource in a pair.

[Prior Art] FIGS. 6 and 7 are diagrams for explaining a multi-window display method in a conventional workstation, and in particular, FIG. 6 shows a case where the entire data resource is displayed in a window W, FIG. 7 shows a case where a part of the display is shown. In a multi-window system, the window for displaying data resources normally displays only a part of the data, and two scroll bars 100 and 200 indicate which position the display part corresponds to. There is. In addition, the scroll bars 100 and 200 are also used to specify a portion to be displayed for the whole. For example, in the example shown in FIG. 7, the hatched portions displayed on the upper side and the right side indicate that data not displayed in the window W exists in that direction. When scrolling the display content of the window W, the cursor is moved to one end of the scroll bar 100 or 200, and the length Ph or Pv of the scroll bar corresponding to the display portion is moved with the movement of the mouse. Indicates the movement status.

[Problems to be Solved by the Invention] As described above, in the conventional multi-window system,
When scrolling the display contents, the scroll bar is moved to indicate the scrolling status of the display contents. In the conventional method, the display data 300, the window title 400, and the scroll bars 100 and 200 are combined into one drawing data. Since it was displayed, it was impossible to draw the scroll bar according to the movement of the mouse in terms of drawing speed. Therefore, conventionally, when the scroll bar corresponding to the display portion is moved in a pseudo manner and the display portion is fixed, the display content and the scroll bar are redrawn. Therefore, in the conventional method, there is a problem that the display contents change before and after the display part is fixed. Also, if they are matched, the CPU is overloaded, which makes real-time operation difficult. There was a problem.

Therefore, a main object of the present invention is to provide a display device capable of simultaneously scrolling a scroll bar in accordance with a scrolling operation of display contents.

[Means for Solving the Problems] A display device according to the present invention stores a data resource according to a first aspect.
Second storage means for storing a scroll bar pattern representing a ratio of the data resource to the display data in the window.
Storage means and control means for moving the scroll bar pattern read position of the second storage means in a direction opposite to the moving direction when the window display data read area in the first storage means moves. Composed.

[Operation] In the display device according to the present invention, when the window display data read area is moved, the read position of the scroll bar pattern is moved in the direction opposite to the moving direction, so that the load on the CPU is small and the real time is realized. You can draw with.

[Embodiment of the Invention] FIG. 2 is a schematic block diagram showing an electrical configuration of an embodiment of the present invention. Next, with reference to FIG. 2, an electrical configuration of an embodiment of the present invention will be described. Workstation has MPU (Micro Processor Unit)
1 is provided, and the MPU 1 has an interface 3, ROM 4, working RAM 5, program RAM via the bus line 2.
6, image memory 7, video RAM 8, CRT controller 9 and floppy disk controller 10 are connected. A keyboard 11 and a mouse controller 12 are connected to the interface 3. The keyboard 11 has keys for inputting alphabets and numbers and various control keys. The mouse controller 12 is a controller of the mouse 13, and stores movement amount data according to the movement amount of the mouse 13 and control data when the point key operation of the mouse 13 is performed.
Output in synchronization with the request signal from MPU1. The ROM 4 stores system programs and fixed data such as icon patterns. The working RAM 5 includes various buffers for storing each processing data, register buffers, and address registers of various memories. In addition, working RA
The M5 includes a Cassole register that holds the coordinate values of Cassole moved by the mouse 13, a window management table that manages window priority, window size information, and window memory address information.
A coordinate management table for specifying the data in each window at the position designated by the cursor is provided. The program RAM 6 stores application programs. The image memory 7 stores image data and is divided for each window. The image data in the image memory 7 is transferred to the video RAM 8 via the bus line 2. The video RAM 8 stores image data corresponding to the image on the CRT display 14, and the image data is read by the CRT controller 9 in synchronization with the CRT display 14 and displayed and output. The video RAM8 is rewritten in order from the lower priority image,
Finally, the image with the highest priority is stored. The CRT controller 9 has a function of displaying the Cassole mark by being combined with the data of the video RAM 8 when the data of the Cassor register is supplied. The floppy disk controller 10 controls the floppy disk 15. The MPU1 controls the system according to the system program in the RAM4 and the application program in the program RAM6.

Next, the general operation of the above workstation will be briefly described. When displaying multiple types of image data (including character data) in multiple windows according to instructions from the mouse 13 etc., the image data is synthesized and expanded based on the coordinate values of the Cassole register and based on the window size and priority. It When the set position in the window is designated by the mouse 13, the coordinate value of the Cassor register is converted into the coordinate value in the corresponding window on the basis of the coordinate management table, and the coordinate value is within the predetermined fixed coordinate for each data element. It is determined whether or not, and the data element pointed to is specified. This specification is defined by the application program, and is a normal icon instruction or character instruction. Further, when displaying a window, the display start address and window size in the image memory 7 and the position address of the video RAM 8 are held, and the image data is transferred to the video RAM 8. further,
When scrolling the data in the window, the display start address is displaced to transfer the data.

FIG. 1 is a diagram for explaining image data in one embodiment of the present invention. Next, the image data will be described with reference to FIG. In Figure 1, data 71,72
Image data 73 and image data 73 corresponding to each window partitioned in the image memory 7 have a data size larger than each window. The data 71 as a data resource is image data corresponding to the window W1 and is character data or graphic data subjected to data processing. The display start address of the window W1 displayed on the CRT display 14 is held in the address pointer AP1, and the data in the frame 711 of the window W1 is read and displayed.

Data 72 is graphic image data corresponding to the vertical scroll bar window W2, and a blank portion 721 indicating the display range of the window W1, a hatching pattern portion 722 indicating the remaining portion described later, and a direction indicating icon indicating the scroll direction. The arrow pattern part 723 is used. The display start address of the window W2 is held in the address pointer AP2, and the window W2
The data in the frame 724 is read out and displayed. The data 73 is graphic image data corresponding to the horizontal scroll bar window W3 and has the same configuration as the above vertical scroll bar pattern.

The display start address of window W3 is the address pointer AP
The data in the frame 734 of the window W3 is read out and displayed. Data 71, 72 and 73 are read by AP1 to AP3, respectively, and are transferred to the video RAM 8
Predetermined location address of video RAM8 transferred to
Each of VAP1, VAP2, and VAP3 is written as a start address, and is synthetically stored.

3 and 4 are flowcharts for explaining the operation of the embodiment of the present invention, and FIGS. 5A to 5C are drawings for explaining the operation. Next, the operation of the embodiment of the present invention will be described with reference to FIGS. 1 to 5C.

In the window format, in step S1 (not shown as S1 in the figure), data is created in the working RAM 5 by reading data from the floppy disk 15 or data input processing from the keyboard 11, and the image memory 7 is stored in advance. Image data in partitioned areas
It is stored as 71. Then, in step S2, the window W1 is formed and the window frame 711 is set. Then, in step S3, the image data 71
The ratio between the size of the window and the size of the window frame 711 is calculated. For example, as shown in FIG. 5A, the window frame 71
When 1 is positioned with respect to the display data 71, the ratio of the left part, the display part, and the right part is l: l2: l3. Then, in step S4, the scroll bar patterns 72 and 73 as shown in FIG. 1 are formed in the image memory 7 by l, l2 and l3. Explaining the scroll bar pattern 73 with reference to FIG. 5B, a blank portion 731 is formed in the central portion, and 1 + l3 is combined on both side portions to form a hatching pattern portion 732. The vertical scroll bar pattern 72 is similarly formed. The scroll bar patterns 72 and 73 are distributed so that the hatching pattern is not displayed at the corresponding ends of the windows W2 and W3 when the window frame 711 moves to the end of the image data 71.

Then, in step S5, each image data is converted to video RA.
Transferred to M8, only the data in the window is displayed,
When scrolling is instructed by a key operation of the mouse 13 or the like in step S6, a memory address is set in step S7, and each image data corresponding thereto is transferred to the video RAM 8.

Next, the above-mentioned transfer operation and scroll operation will be described in detail.

In the scroll S11, the address pointer A of the image memory 7
For example, N bytes of image data corresponding to the window W1 are sequentially read from P1, transferred to the video RAM 8, and written from the starting point VAP1 as a starting point. Then, step S12
Then, for example, M bytes of image data corresponding to the window W2 are sequentially read from the address pointer AP2 of the image memory 7, transferred to the video RAM 8, and written starting from the starting point VAP2. Succeedingly, in a step S13, image data of, for example, P bytes corresponding to the window W3 is sequentially read from the address pointer AP3 of the image memory 7,
It is transferred to video RAM8 and written from the starting point VAP3. By the above processing, the fifth image is displayed on the CRT display 14.
A window similar to Figure C is displayed.

By operating the mouse 13, the arrow pattern 90 is designated, and the mouse 13 is moved to move to the scrolling process.
Vertical and horizontal scrolling operations are performed. That is, when the start of the scroll interrupt process is instructed in the scroll S14, it is determined in step S15 whether or not the scroll is the vertical scroll. If it is scrolling in the left-right direction, subsequently, in step S16, it is determined whether or not the step is in the left direction. If the scroll is in the vertical direction, it is determined in step S21 whether the scroll is upward.

If scrolling to the left, in step S17, A
P1-1 is set as a new AP1, and subsequently, in step S18, AP3 + 1 is set as a new AP3. If scrolling to the right, AP1 + 1 is set as a new AP1 in step S19, and then AP3-1 is set as a new AP in step S20.
Set to 3. If scrolling upward, AP1 + n (n is the number of horizontal data of the image data 71) is set as a new AP1 in step S22, and subsequently in step S23, AP2 +
Let m (m is the number of horizontal data of image data 72) be a new AP2. If scrolling downward, AP1 + n is set as a new AP1 in step S24, and then step S25.
In, AP2-m is set as a new AP2.

As described above, the windows W1, W2, and W3 are scrolled by updating the address pointer, waiting for a predetermined time, and executing steps S11, S12, and S13 described above. That is, if scrolling to the left,
The data in window W1 is shifted to the right, and new data is displayed at the left end. Also, the scroll bar pattern in the window W3 is shifted in the opposite direction to the window W1, and the hatching pattern portion showing the remaining portion at the right end increases,
The hatching pattern part on the left end is reduced. If scrolling to the right, the data in window W1 is shifted to the left, and new data is displayed at the rightmost end. Further, the scroll bar pattern in the window W3 is shifted in the opposite direction to the window W1, the hatching pattern portion at the right end decreases, and the hatching pattern portion at the left end increases. If scrolling upward, the data in the window W1 is shifted downward, and new data is displayed at the top end. Further, the scroll bar pattern in the window W2 is shifted in the opposite direction to the window W1, so that the hatching pattern portion at the lower end increases and the hatching pattern portion at the upper end decreases. If scrolling downward, the data in window W1 is shifted upward and new data is displayed at the bottom. Further, the scroll bar pattern in the window W2 is shifted in the opposite direction to the window W1, so that the hatching pattern at the upper end increases and the hatching pattern at the lower end decreases.

In addition, the data ratio of the above-mentioned windows W1, W2 and W3
If it is 1: 1: 1, the above method may be used, but since the ratio of the image data 71 and the image data 72, 73 is generally different, preferably, every time the scrolling process of the window W1 is performed a plurality of times, Scroll windows W2 and W3 once. The scroll ratio may be determined by the ratio between the image data size and the window frame size.

As described above, according to the present invention, when the window display data reading area is moved, the reading position of the scroll bar pattern is moved in the direction opposite to the moving direction. There is little load and it is possible to draw in real time.

[Brief description of drawings]

FIG. 1 is a diagram for explaining image data in one embodiment of the present invention. FIG. 2 is a schematic block diagram showing the electrical construction of an embodiment of the present invention. 3 and 4 are flow charts for explaining the operation of the embodiment of the present invention. 5A to 5C are diagrams for explaining the operation. 6 and 7 are diagrams for explaining a multi-window display system in a conventional workstation. In the figure, 1 is MPU, 3 is interface, 4 is RO
M, 5 working RAM, 6 program RAM, 7 image memory, 8 video RAM, 9 CRT controller, 11 keyboard, 12 mouse controller, 13 mouse, 14
CRT display, 71 image data, 711 window W1
Frame, 72 is graphic image data corresponding to the vertical scroll bar window W2, 721 is a blank part, 722 is a hatching pattern part, 723 is an arrow pattern part, and 724 is a window W2.
Frame, 73 is the graphic image data corresponding to the horizontal scroll bar window W3, 734 is the frame of window W3, AP
1, AP2 and AP3 are address pointers, VAP1, VAP2 and V
AP3 is the writing start point, and W1, W2 and W3 are windows.

Claims (1)

[Claims] 1. A display device for displaying a window and a scroll bar representing a range of display data in the window for the data resource in a pair, the first storage means for storing the data resource, the data resource and the Second storage means for storing a scroll bar pattern representing a ratio with the display data in the window, and, when the window display data reading area in the first storage means is moved, the second storage means is moved in a direction opposite to the moving direction.
And a control means for moving the reading position of the scroll bar pattern of the storage means.