JP2018185569A - Information processing apparatus, display control program and display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily scroll in a predetermined direction according to a content displayed on a screen.SOLUTION: Provided is an information processing apparatus that includes: a determination unit for determining whether or not a document content is displayed on a screen; and a display control unit for scroll displaying the screen in a horizontal direction or a vertical direction with regard to a writing direction of the document content according to a direction of a screen operation by touch to a screen area displaying the document content when it is determined that the document content is displayed on the screen.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an information processing apparatus, a display control program, and a display control method.

  When browsing content of a size larger than the screen size on a smartphone or tablet computer, the entire screen cannot be viewed unless the screen is scrolled. When a keyboard cursor key, a mouse wheel, or a scroll bar is used to scroll the screen, the screen can be scrolled in a horizontal direction or a vertical direction without being shaken in an oblique direction.

  On the other hand, the operation of scrolling the screen by touching and sliding the finger on the screen on which the content is displayed also corresponds to an oblique direction. In this case, for example, when it is desired to scroll vertically, if a finger touching the screen and scrolling is displaced obliquely in the horizontal direction, the screen may be scrolled in the horizontal direction.

  Therefore, at least one of the horizontal and vertical directions of the screen according to the result of comparing the horizontal and vertical coordinate values of the current touch point with the touch start point on the screen as the origin and a predetermined threshold value. There is known a technique for limiting the scrolling (see, for example, Patent Document 1). Thereby, the scroll of the screen by touch operation can be performed smoothly.

JP 2013-92942 A

  However, if there is no regularity in the content displayed on the screen, scrolling the screen in the direction in which the finger is shifted may display the content that the user wants to see more smoothly. On the other hand, if the content displayed on the screen has regularity, scrolling the screen in the direction in which the finger is shifted will cause the scrolling finger to scroll up and down or left and right when it is moved up and down or left and right. This causes a problem that it is difficult to view the display object. For example, when document content is displayed on the screen, it is difficult to read the document unless the screen is smoothly scrolled in the direction in which the document is read (writing direction).

  Therefore, in one aspect, an object of the present invention is to easily scroll in a predetermined direction in accordance with content displayed on a screen.

  In one embodiment, a determination unit that determines whether or not the document content is displayed on the screen, and when it is determined that the document content is displayed on the screen, the screen content on which the document content is displayed is determined. There is provided an information processing apparatus including a display control unit that scrolls and displays the screen in a horizontal direction or a vertical direction with respect to a writing direction of the document content in accordance with a direction of a scroll operation by touch.

  In one aspect, the present invention can be easily scrolled in a predetermined direction according to the content displayed on the screen.

The figure which shows an example of the screen of the smart phone which concerns on one Embodiment. The figure for demonstrating an example of the scroll display by touch operation of a screen. The figure which shows an example of the hardware constitutions of the smart phone which concerns on one Embodiment. The figure which shows an example of the function structure of the smart phone which concerns on one Embodiment. The flowchart which shows an example of the scroll display control process which concerns on one Embodiment. The figure for demonstrating the image analysis performed by the scroll display control process which concerns on one Embodiment. The figure which shows an example of the image analysis result which concerns on one Embodiment. The figure which shows an example of the scroll display which concerns on one Embodiment. The flowchart which shows an example of the scroll display control process which concerns on the modification of one Embodiment. The figure which shows an example of the scroll display which concerns on the modification of one Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, the duplicate description is abbreviate | omitted by attaching | subjecting the same code | symbol.

[Introduction]
FIG. 1 shows an example of a screen of a smartphone 10 according to an embodiment. The smartphone 10 according to the present embodiment is an example of an information processing apparatus having a screen that can be touched. However, the information processing apparatus is not limited to the smartphone 10, and may be a tablet computer, a mobile phone, a portable information terminal, or an electronic device such as a game machine.

  As shown in FIG. 1, when document content is displayed on the display 11 of the smartphone 10, the size of the document content D for one page is large as shown in FIG. It may not be possible to display above. In the example of FIG. 2A, a part of the document part D1 of the document content D is displayed in the screen area of the display 11 shown in FIG.

  The document content D handled in the present embodiment is composed only of character strings including numbers. However, the present invention is not limited to this, and a graph or other figure is included in a character example having a regular arrangement. It may be. On the other hand, even if the document content D handled in the present embodiment is composed only of characters, the character content is used as a design. In addition, those that do not have regularity are not included.

  The smartphone 10 slides a finger while touching the screen area where the document part D1 is displayed to scroll the screen (hereinafter also referred to as “scrolling operation by touch”), and then the document part D1 of the document content D. Scroll the part other than on the screen.

  For example, as shown in FIG. 2A, when the finger is shifted in the upper left direction, the screen is scrolled obliquely as shown in FIG. 2B, and the document part D2 in the obliquely lower area of the document part D1 is displayed. Is displayed. At this time, if the user has read the first line of the document part D1, the character string D3 continued on the same line cannot be read after scrolling, and the contents of the document cannot be grasped smoothly, which is inconvenient. .

  Therefore, the smartphone 10 according to the present embodiment performs screen scroll display control according to the regularity of the document content. Hereinafter, after describing the functional configuration and the hardware configuration of the smartphone 10 according to the present embodiment, a screen scroll display control method by the smartphone 10 according to the present embodiment will be described.

[Function configuration]
First, an example of a functional configuration of the smartphone 10 according to an embodiment will be described with reference to FIG. FIG. 3 shows an example of a functional configuration of the smartphone 10 according to an embodiment. The smartphone 10 according to the present embodiment includes a display 11, a CPU 12, a memory 13, a touch panel 14, and a communication I / F (interface) 15.

  CPU12 controls each part with which the smart phone 10 is provided, and controls. The functions of the smartphone 10 are realized by the CPU 12 reading a program stored in the memory 13 including a ROM (Read Only Memory), a RAM (Random Access Memory), and the like into the RAM and executing the program. . For example, the CPU 12 analyzes the image displayed on the display 11 by reading the image analysis program 131 stored in the memory 13 into a RAM or the like and executing it. In addition, for example, the CPU 12 reads the scroll control program 132 stored in the memory 13 to the RAM or the like and executes the scroll control program 132 according to the scroll operation by touching the screen of the smartphone 10 to execute display control of the screen scroll. To do. Thereby, the CPU 12 realizes the overall control of the smartphone 10 and the image analysis function and display control function installed in the smartphone 10.

  The display 11 may be a liquid crystal display or an organic EL (electroluminescence) display. The touch panel 14 is placed on the display 11 so that the user can receive an input operation on the screen performed by directly touching the touch panel 14 with a finger while looking at the screen of the display 11. The touch panel 14 is an input device that detects a touch position by a finger or the like and a detection amount such as a capacitance or an electric resistance indicating a contact state at the touch position. Thereby, the movement of the finger can be detected from the coordinates of the touch position with respect to the screen of the smartphone 10, and the scroll operation by the touch can be detected. Examples of the sensor include a pressure sensor, a capacitance sensor, and an optical sensor.

  The communication I / F 15 is an interface for performing communication with an external device via a communication network. The communication I / F 15 is connected to a communication terminal via a communication network, and transmits / receives content data such as document content between the smartphone 10 and the communication terminal. Further, the communication I / F 15 can also function as an interface for transmitting / receiving an electronic mail to / from another device via a mobile phone network. The transmitted / received e-mail is an example of document content. The smartphone 10 may have a camera and display a document image captured by the camera on the display 11. The captured document image is an example of document content. Other examples of document content include electronic books and data including any document.

  The smartphone 10 includes a telephone function or the like as a function other than the above, but a description of the functional configuration other than the screen scroll display control according to the present embodiment is omitted.

[Function configuration]
Next, an example of a functional configuration of the smartphone 10 according to an embodiment will be described with reference to FIG. FIG. 4 shows an example of the functional configuration of the smartphone 10 according to an embodiment. The smartphone 10 according to the present embodiment includes a touch position acquisition unit 21, an image analysis unit 22, a determination unit 23, a calculation unit 24, a scroll control unit 25, a display unit 26, a storage unit 27, and a communication unit 28.

  The touch position acquisition unit 21 acquires the coordinates of the touch position of the finger on the screen detected by the touch panel 14. When the user touches and slides the touched finger, the touch position acquisition unit 21 acquires the coordinates of the touch position of the shifted finger.

  Based on the coordinates of the touch position acquired by the touch position acquisition unit 21, the determination unit 23 determines the direction of the scroll operation by touching the content displayed on the screen.

  The image analysis unit 22 analyzes the image of the content displayed on the display 11. The image analysis unit 22 determines whether the displayed content is document content from the analysis result.

  The calculation unit 24 calculates a horizontal component and a vertical component with respect to the writing direction indicating the direction in which the text of the document content displayed on the screen is read in the scroll operation by touch.

  The scroll control unit 25 scrolls and displays the screen in the horizontal direction or the vertical direction with respect to the writing direction of the document content based on the calculated magnitude relationship between the horizontal component and the vertical component. The scroll control unit 25 scrolls and displays the screen in the horizontal direction or the vertical direction with respect to the writing direction of the document content in accordance with the direction of the scroll operation by touching the screen area on which the document content is displayed. It is an example of a part.

  The storage unit 27 stores the image analysis program 131, the scroll control program 132, and various data used when executing these programs. The communication unit 28 transmits / receives information to / from an external device.

  The image analysis unit 22 can be realized, for example, when the CPU 12 executes an image analysis process using the image analysis program 131 and various data stored in the memory 13. The touch determination unit 23, the calculation unit 24, and the scroll control unit 25 can be realized by the CPU 12 executing a screen scroll display control process using the scroll control program 132 and various data stored in the memory 13. The position acquisition unit 21 can be realized by the touch panel 14, for example. The display unit 26 can be realized by the display 11, for example. The storage unit 27 can be realized by the memory 13 or a secondary storage device, for example. The communication unit 28 can be realized by, for example, the communication I / F 15.

  FIG. 4 is a block diagram focusing on functions, and the processor that executes the software of each unit indicated by these functional blocks is hardware.

[Scroll display control processing]
Next, an example of the scroll display control process according to an embodiment will be described with reference to FIG. FIG. 5 is a flowchart illustrating an example of a scroll display control process according to an embodiment. When this process is started, the image analysis unit 22 acquires and analyzes an image of content displayed on the display 11 of the smartphone 10 (step S10). For example, in the example of FIG. 6, since the document portion D1 of the document content D for one page is displayed on the display 11, the image in this area is analyzed.

  The determination unit 23 determines whether characters are displayed on the displayed content based on the result of the image analysis performed by the image analysis unit 22 (step S12). If the determination unit 23 determines that no character is displayed in the displayed content, the scroll control unit 25 scrolls and displays the screen in the direction in which the scroll operation is performed by touching (step S14), and the process ends. In this case, if the scrolling direction is diagonal, the screen is scrolled diagonally.

On the other hand, when the determination unit 23 determines in step S12 that characters are displayed in the displayed content, the image analysis unit 22 calculates the x-axis from the color histogram in the x-axis direction based on the image analysis result. It is analyzed whether there is a color distribution of a certain level or more in the direction (step S16). For example, from the color histogram in the x-axis direction shown in FIG. 7A, it is analyzed whether there is a color distribution of a predetermined level or more in the x-axis direction. In the color histogram in the x-axis direction shown in FIG. 7A, it is determined that there is a color distribution above a certain level. The image analysis unit 22 analyzes that there is no color distribution above a certain level in the x-axis direction. Then, the scroll control unit 25 scrolls and displays the screen in the direction in which the scroll operation is performed by touch (step S14), and ends the present process.

  On the other hand, in step S16, when the image analysis unit 22 analyzes that there is a color distribution of a certain level or more in the x-axis direction, based on the image analysis result, the image analysis unit 22 generates a constant value in the y-axis direction from the color histogram in the y-axis direction. It is analyzed whether there is a color distribution at intervals (step S18). For example, it is analyzed from the histogram of the color in the y-axis direction shown in FIG. 7B whether there is a certain interval between the color distributions in the y-axis direction. In the color histogram in the y-axis direction shown in FIG. 7B, it is determined that there is a certain interval.

  If it is analyzed that there is a color distribution of a certain level or more in the x-axis direction and a certain interval between the color distributions in the y-axis direction, the document content is displayed on the display, and the x-axis direction is It can be determined that the writing direction.

  However, the method for determining whether or not the document content is displayed on the screen is not limited to this. Based on the result of image analysis, other regularity is extracted when the document is displayed, and whether or not there is regularity. In response to this, it can be determined whether or not the document content is displayed on the screen.

  When the image analysis unit 22 analyzes that there is no color distribution at a constant interval in the y-axis direction, the scroll control unit 25 scrolls and displays the screen in the direction in which the scroll operation is performed by touch (step S14), and ends this processing. To do.

  On the other hand, in step S18, when the image analysis unit 22 analyzes that there is a color distribution at a certain interval in the y-axis direction, the calculation unit 24 calculates the x-axis direction component and the y-axis direction of the direction scrolled by touch. Are calculated (step S20). For example, the calculation unit 24 may calculate the x-axis direction component and the y-axis direction component of the movement amount per unit time from the touched finger movement amount.

  Next, the scroll control unit 25 determines whether the calculated component in the x-axis direction is equal to or greater than the component in the y-axis direction (step S22). When the scroll control unit 25 determines that the calculated component in the x-axis direction is equal to or greater than the component in the y-axis direction, the scroll control unit 25 moves in the x-axis direction corresponding to the scrolling direction, that is, in the direction horizontal to the writing direction of the document content. The screen is scrolled (step S24), and this process is terminated. In step S22, when the scroll control unit 25 determines that the calculated component in the x-axis direction is less than the component in the y-axis direction, the scroll control unit 25 moves in the y-axis direction corresponding to the scrolling direction, that is, the document content writing direction. The screen is scroll-displayed in the vertical direction (step S26), and this process ends.

  As described above, in the scroll display control processing method according to the present embodiment, the content displayed on the screen is subjected to image analysis, and it is determined whether the content of the displayed content is regular based on the analysis result. When it is determined that the document content has regularity, scroll display is performed in a predetermined direction according to regularity with respect to the direction of scroll operation by touch.

  For example, in this embodiment, when it is determined that the document content is displayed on the screen, depending on the direction of the scroll operation by touching the displayed document content, in the writing direction of the document content or in the vertical direction thereof. The screen scrolls. In the example of FIG. 8A, the component in the horizontal direction with respect to the writing direction of the document content from the direction of the scroll operation is greater than or equal to the component in the vertical direction. For this reason, even if the scroll operation is oblique, the document content on the screen is controlled to be scrolled and displayed in the horizontal direction of the scroll operation direction. As a result, the document displayed on the display 11 slides in the horizontal direction and changes from the display of the document part D1 in FIG. 8A to the display of the document content D4.

  Thereby, even if the scroll operation by touch is moved up and down, the scroll display concerning the document content can be easily performed along the writing direction. As a result, as shown in FIG. 2B, it is possible to avoid the situation where the continuation of the text read before the scroll (for example, the character string D3 in FIG. 2B) cannot be read. .

  Similarly, in the example of FIG. 8B, the horizontal component relative to the writing direction of the document content is less than the vertical component. Therefore, it is determined that the scroll operation by touching the document content is directed in the vertical direction rather than the horizontal direction with respect to the writing direction of the document content. Therefore, even if the scroll operation is diagonal, the document content on the screen is controlled to be scroll-displayed in the vertical direction according to the direction of the scroll operation. As a result, the document displayed on the display 11 slides in the horizontal direction and changes from the display of the document part D1 in FIG. 8B to the display of the document content D5. As a result, even if the scroll operation by the touch is shifted left and right, the scroll display related to the document content can be performed in the direction perpendicular to the writing direction.

  In the present embodiment, determination of content regularity and scroll display based on scroll display control processing that matches the regularity are performed by the user of the smartphone 10 according to the present embodiment, or the developer or designer of the smartphone 10. Can be set.

  For example, in this embodiment, the determination of the regularity of the content is performed using the color histograms in the x-axis direction and the y-axis direction to determine the writing direction, the horizontal direction, and the vertical direction. However, the regularity of the content can be determined not only by the color histogram in which the character string is drawn, but also by various image characteristics derived as a result of the image analysis. For example, an image in which a character string is drawn may be binarized into black and white, and a writing direction of document content may be determined using a histogram of black images.

  Further, for example, an image displayed on the display 11 is read, optical character recognition is performed by OCR (Optocal Character Recognition), and the regularity of the direction of each character of the recognized character string is derived, thereby writing the document. The direction can be determined. As a method for detecting a character string from the acquired image, for example, a known technique such as Japanese Patent Application Laid-Open No. 2017-21695 and Japanese Patent Application Laid-Open No. 2000-293671 can be used. The regularity of the content can be determined from the character string detected by these known techniques.

  In step S22, the scroll display is performed in the direction of the larger component based on the magnitude relationship between the component in the x-axis direction and the component in the y-axis direction. However, the scroll display method is not limited to this, and any one of the x-axis direction, the y-axis direction, and the direction of the scroll operation by touching depending on the ratio of the x-axis direction component and the y-axis direction component. You may scroll to display. For example, when the component in the x-axis direction and the component in the y-axis direction are equal, scroll display may be performed in the direction of the scroll operation.

[Modification]
Next, an example of the scroll display control process by the smartphone 10 according to the modification of the embodiment will be described with reference to FIG. FIG. 9 is a flowchart illustrating an example of a scroll display control process according to a modification of the embodiment. In addition, since the functional configuration of the smartphone 10 according to the modification of the embodiment is the same as the functional configuration of the smartphone 10 according to the embodiment, the description thereof is omitted.

  In addition, steps S10 to S26 of the scroll display control process according to the modification of the present embodiment are the same processes as steps S10 to S26 of the scroll display control process according to the present embodiment, and thus description thereof is omitted.

  In step S22, for example, when it is determined that the component in the x-axis direction is greater than or equal to the component in the y-axis direction, the scroll control unit 25 scrolls and displays the screen in the x-axis direction corresponding to the direction of the scroll operation by touch. . Next, the determination unit 23 determines whether one end of the document content displayed on the screen by scroll display has been reached (step S28).

  When the document part D4 shown in FIG. 10A is displayed on the display 11 for one page of document content D displayed on the screen of the smartphone 10, the determination unit 23 reaches one end of the document content D. Judge that it is not. As a result, returning to FIG. 9, “No” is determined in step S <b> 28, and the present process is terminated.

  On the other hand, when the document part D <b> 6 shown in FIG. 10A is displayed on the display 11, the determination unit 23 determines that one end of the document content D has been reached. As a result, “Yes” is determined in step S28 of FIG. 9, and the scroll control unit 25 determines that the document part at the other end of the document content D is when the direction of the scroll operation by the touch is toward the outside of the document content from the one end. Is displayed (step S30), and this process is terminated. As a result, as shown in FIG. 10B, the document portion D7 at the other end including a sentence connected to the document portion D6 at one end of the document content D can be smoothly displayed.

  As described above, according to the scroll display control process according to the modified example of the present embodiment, the content of the content displayed on the screen is image-analyzed, regularity is found in the displayed content, and the touch scroll operation is performed. Scroll display according to regularity can be easily performed.

  Also, in this modification, when one end of the document content displayed by scroll display is displayed, when the direction of the scroll operation by the touch is directed to the outside of the document content from the one end, the document on the opposite side to the one end Display the other end of the content. Thereby, it is possible to display a document portion that the user wants to obtain more smoothly.

  Note that one end of the document content displayed by scroll display may be not only the right end of the document content shown in FIG. 10A but also the left end of the document content. Also in this case, when the direction of the scroll operation by touch when one end of the document content shown is displayed is directed to the outside of the document content from the one end, the other end of the document content opposite to the one end of the document content Is displayed. For example, in the state where the document portion D7 at the left end of the document content D shown in FIG. 10B is displayed, when the direction of the scroll operation by touch is directed to the outside of the document content rather than the one end, the state shown in FIG. The rightmost document portion D6 of the document content D shown is displayed.

  Further, in the present modification, the display content is moved from one end to the other end of the document content in the vertical scrolling direction of the document content in the vertical direction. That is, after scroll display is performed in the y-axis direction in step S26 of FIG. 9, it is determined in step S28 whether one of the upper and lower ends of the document content is displayed by scroll display. When it is determined that either one of the upper and lower ends of the document content is displayed, in step S30, when the direction of the scroll operation by touch is directed to the outside of the document content from the one end, the other end of the document content is displayed. The This also makes it possible to display the document portion that the user wants to obtain more smoothly.

  As described above, according to the scroll display control process according to the present embodiment and the modification thereof, the scroll display suitable for various display contents can be easily performed by defining the regularity of the content contents displayed on the screen and the direction of the scroll operation. be able to.

  As described above, the information processing apparatus, the display control program, and the display control method have been described in the above embodiment. However, the information processing apparatus, the display control program, and the display control method according to the present invention are not limited to the above embodiment. Various modifications and improvements are possible within the scope of the invention. In addition, when there are a plurality of the above-described embodiments and modifications, they can be combined within a consistent range.

  For example, the touch panel 14 includes a sensor capable of detecting not only a touch operation on the screen of a user's finger or touch pen but also a close operation on the screen, and scrolls while keeping the user's finger or touch pen in a close state ( It may have a sensor for detecting the operation.

  When the touch panel 14 can detect proximity, the touch position acquisition unit 21 acquires the coordinates of the proximity position. The touch position acquisition unit 21 acquires the coordinates of the shifted position when the user performs an operation of shifting the screen while touching or approaching the screen.

  The determination unit 23 determines the direction of the scroll operation for the content displayed on the screen based on the coordinates of the touch position or the proximity position acquired by the touch position acquisition unit 21. Thereby, not only in the case of the scroll operation by touch but also in the case of the scroll operation by proximity, it is possible to easily scroll in a predetermined direction according to the content displayed on the screen.

Regarding the above description, the following items are further disclosed.
(Appendix 1)
A determination unit for determining whether document content is displayed on the screen;
When it is determined that the document content is displayed on the screen, the horizontal or vertical direction with respect to the writing direction of the document content according to the direction of the scroll operation by touching the screen area on which the document content is displayed. A display control unit that scrolls the screen in a direction;
An information processing apparatus.
(Appendix 2)
A calculation unit that calculates a horizontal component and a vertical component of the scroll operation with respect to the writing direction;
The display control unit scrolls and displays the screen in the horizontal direction or the vertical direction with respect to the writing direction based on the calculated magnitude relationship between the horizontal component and the vertical component.
The information processing apparatus according to attachment 1.
(Appendix 3)
The display control unit displays the other end of the document content when the direction of the scroll operation when the one end of the document content is displayed on the screen is directed to the outside of the document content rather than the one end.
The information processing apparatus according to appendix 1 or 2.
(Appendix 4)
A process for determining whether document content is displayed on the screen;
When it is determined that the document content is displayed on the screen, the horizontal or vertical direction with respect to the writing direction of the document content according to the direction of the scroll operation by touching the screen area on which the document content is displayed. Processing to scroll the screen in the direction;
Display control program for causing a computer to execute.
(Appendix 5)
A process of calculating a horizontal component and a vertical component of the scroll operation with respect to the writing direction;
A process of scrolling and displaying the screen in the horizontal direction or the vertical direction with respect to the writing direction based on the calculated magnitude relationship between the horizontal component and the vertical component;
The display control program according to appendix 4, including:
(Appendix 6)
A process of displaying the other end of the document content when the direction of the scroll operation when the one end of the document content is displayed on the screen is directed to the outside of the document content rather than the one end;
The display control program according to appendix 4 or 5, including:
(Appendix 7)
Determine whether the document content is displayed on the screen,
When it is determined that the document content is displayed on the screen, the horizontal or vertical direction with respect to the writing direction of the document content according to the direction of the scroll operation by touching the screen area on which the document content is displayed. Scroll the screen in the direction,
A display control method in which a computer executes this.
(Appendix 8)
Calculating a horizontal component and a vertical component of the scroll operation with respect to the writing direction;
Based on the calculated magnitude relationship between the horizontal component and the vertical component, the screen is scroll-displayed in the horizontal or vertical direction with respect to the writing direction.
The display control method according to appendix 7.
(Appendix 9)
When the direction of the scroll operation when one end of the document content is displayed on the screen is directed to the outside of the document content rather than the one end, the other end of the document content is displayed.
The display control method according to appendix 7 or 8.

10 Smartphone 11 Display 12 CPU
13 Memory 14 Touch panel 15 Communication I / F
DESCRIPTION OF SYMBOLS 21 Touch position acquisition part 22 Image analysis part 23 Determination part 24 Calculation part 25 Scroll control part 26 Display part 27 Storage part 28 Communication part

Claims (5)

A determination unit for determining whether document content is displayed on the screen;
When it is determined that the document content is displayed on the screen, the horizontal or vertical direction with respect to the writing direction of the document content according to the direction of the scroll operation by touching the screen area on which the document content is displayed. A display control unit that scrolls the screen in a direction;
An information processing apparatus. A calculation unit that calculates a horizontal component and a vertical component of the scroll operation with respect to the writing direction;
The display control unit scrolls and displays the screen in the horizontal direction or the vertical direction with respect to the writing direction based on the calculated magnitude relationship between the horizontal component and the vertical component.
The information processing apparatus according to claim 1. The display control unit displays the other end of the document content when the direction of the scroll operation when the one end of the document content is displayed on the screen is directed to the outside of the document content rather than the one end.
The information processing apparatus according to claim 1 or 2. A process for determining whether document content is displayed on the screen;
When it is determined that the document content is displayed on the screen, the horizontal or vertical direction with respect to the writing direction of the document content according to the direction of the scroll operation by touching the screen area on which the document content is displayed. Processing to scroll the screen in the direction;
Display control program for causing a computer to execute. Determine whether the document content is displayed on the screen,
When it is determined that the document content is displayed on the screen, the horizontal or vertical direction with respect to the writing direction of the document content according to the direction of the scroll operation by touching the screen area on which the document content is displayed. Scroll the screen in the direction,
A display control method in which a computer executes this.

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