WO2019015098A1 - 基于双系统的笔迹显示处理方法和系统、存储介质及设备 - Google Patents

基于双系统的笔迹显示处理方法和系统、存储介质及设备 Download PDF

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Publication number
WO2019015098A1
WO2019015098A1 PCT/CN2017/103430 CN2017103430W WO2019015098A1 WO 2019015098 A1 WO2019015098 A1 WO 2019015098A1 CN 2017103430 W CN2017103430 W CN 2017103430W WO 2019015098 A1 WO2019015098 A1 WO 2019015098A1
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Prior art keywords
handwriting
writing
editing
event
write
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English (en)
French (fr)
Inventor
张维元
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shizhen Information Technology Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
Guangzhou Shizhen Information Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text

Definitions

  • the present invention relates to the field of touch screen technologies, and in particular, to a dual system based handwriting display processing method and system, a storage medium and a device.
  • a dual system display device is an electronic device that includes two complete operating systems.
  • the operating system of the dual system display device may be composed of a main Android system plus other Android systems, or a main Android system plus a Windows system.
  • the main Android system is referred to as a first system
  • the other system is referred to as a second system. .
  • the display signal of the second system needs to be physically connected to the first system through the HDMI (High Definition Multimedia Interface) line for display.
  • the first system performs HDMI decoding and displays, and the picture of one frame of the second system needs to be HMDI encoded, transmitted, and HDMI decoded before being presented to the user.
  • a dual system based handwriting display processing method includes the following steps:
  • a dual system based handwriting display processing system comprising:
  • a startup module configured to send, by the second system, a startup instruction to the first system when the writing software of the second system is started, and activate a transparent writing layer in the first system according to the startup instruction;
  • a first drawing module configured to perform a handwriting drawing operation on the transparent writing layer according to the detected touch event, to obtain a first handwriting, and display the first handwriting on the transparent writing layer;
  • a second drawing module configured to perform a handwriting drawing operation on the writing interface of the writing software according to the touch event, to obtain a second handwriting, and display the second handwriting on a writing layer of the second system;
  • a first erasing module configured to erase the first handwriting if the handwriting drawing operation on the writing software is completed after detecting the end of the touch event.
  • a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements a dual system based handwriting display processing method.
  • a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the program to implement a dual system based handwriting display processing method.
  • the above-described dual system-based handwriting display processing method and system, storage medium and device when the writing software of the second system is started, simultaneously starts the transparent writing layer in the first system, and in the writing interface of the second system and the first system Simultaneous handwriting and handwriting display on the transparent writing layer. After the handwriting drawing operation on the second system writing interface is completed, the first handwriting on the transparent writing layer is erased, and the user perceives that the first system is on the transparent writing layer. In the first stroke, the first handwriting does not need to undergo HDMI codec and transmission delay when displayed, which reduces the delay in the handwriting display process.
  • FIG. 1 is a flow chart of a dual system based handwriting display processing method according to an embodiment
  • FIG. 2 is a split view of a dual system based handwriting drawing operation of an embodiment
  • FIG. 3 is a schematic structural diagram of a dual system based handwriting display processing system according to an embodiment.
  • the present invention provides a dual system based handwriting display processing method, which may include the following steps:
  • the first system may be an operating system such as an Android system, an IOS system, or a Windows system
  • the second system may also be one of the above systems.
  • the first system and the second system may both be Android systems.
  • the writing software of the second system is the writing software installed in the second system.
  • the handwriting display process needs to be displayed after HMDI encoding, transmission, and HDMI decoding.
  • a startup command can be sent to the first system through the second system, and a transparent writing layer is activated in the first system.
  • the transparent writing layer is activated, so that the transparent writing layer will overwrite the writing software of the second system.
  • the first system starts the transparent writing layer, that is, the background thereof is transparent, it is impossible for the user to perceive the existence of the transparent writing layer of the first system, and the startup process is not perceived.
  • a touch event start command issued by the system may be detected, and if detected, a touch event is determined to occur.
  • the handwriting attribute information may also be sent to the first system by the second system before performing the drawing operation, and the handwriting attribute information may include the thickness of the handwriting line, the definition of the handwriting line being a solid line or a broken line, and/or Or information such as the color of the handwriting lines.
  • the second system may send the changed handwriting attribute information to the first system after receiving the change instruction to the handwriting attribute information.
  • the first system may perform a handwriting drawing operation according to the handwriting attribute information, and display the drawn first handwriting on the transparent writing layer.
  • the first handwriting can also be rendered and the rendered first handwriting displayed on the transparent writing layer. If the handwriting attribute information acquired by the first system includes the color information of the handwriting line, the first handwriting may be rendered according to the color information.
  • This step can be performed while performing step S2.
  • the handwriting when the handwriting drawing operation is performed, the handwriting can be drawn according to the predefined handwriting attribute information.
  • the modification event of the handwriting attribute information may also be detected. If detected, the handwriting is drawn according to the modified handwriting attribute information; otherwise, the handwriting drawing may be performed according to the default handwriting attribute information.
  • step S2 and step S3 when the user performs touch writing, the two systems simultaneously process the touch event and draw the handwriting at the same time; since the user opens the writing software of the second system, the transparent writing layer of the first system is opened. Therefore, the writing handwriting of the first system will completely cover the handwriting of the second system.
  • the natural handwriting is the handwriting of the first system transparent writing layer, and the writing handwriting of the second system is not perceived.
  • the split diagram of the handwriting drawing operation based on the dual system is shown in Fig. 2.
  • the black pattern represents the transparent writing layer of the first system and the handwriting thereon
  • the gray pattern represents the writing software of the second system and the handwriting thereon.
  • the transparent writing layer is overlaid on the writing software of the second system.
  • the first system and the second system both write at the same time, the user perceives the writing of the first system, and when the user lifts the pen, the first system will clear the drawing.
  • the handwriting returns the transparent state without handwriting; when the handwriting of the first system disappears, the user will see the handwriting that has already been drawn by the second system. Since the handwriting of the two systems completely overlaps, the user cannot perceive the first system.
  • the process of handwriting disappearing. Whether the touch event is ended can be determined by detecting a touch event end instruction. When the touch event end instruction is detected, it may be determined that the touch event ends, otherwise, it is determined that the touch event has not ended. Taking the Android system as an example, the ACTION_UP event can be detected. If detected, the touch event can be determined to end, otherwise, the touch event is not ended.
  • the handwriting editing operations may include operations such as handwriting movement and/or handwriting scaling.
  • the timing may be started after the touch end event is detected, if the time is reached before the preset first time threshold is reached.
  • the handwriting editing event performs a handwriting editing operation on the first handwriting according to the handwriting editing event. In this way, the time gap between the end of the touch event and the start of the handwriting editing event is reserved for the user, which is convenient for the user to operate. Further, if the editing event is not detected before the timing reaches the preset first time threshold, the first handwriting may be erased. Further, timing may be started when the handwriting editing operation is completed, and the first handwriting is erased when the timing reaches a preset second time threshold.
  • the handwriting is simultaneously drawn by the dual system, and the acceleration of the handwriting display process is completed by the fast belt slow (the first system with the second system), by drawing and displaying on the transparent writing layer, and after the handwriting is drawn. Clearing the handwriting on the transparent writing layer, completely displaying the handwriting of the second system to facilitate the user to perform other operations on the second system handwriting, the handwriting is displayed without HDMI codec and The transmission delay reduces the delay during the handwriting display.
  • the present invention further provides a dual-system handwriting display processing system, which may include:
  • the startup module 10 is configured to send, by the second system, a startup instruction to the first system when the writing software of the second system is started, and activate the transparent writing layer in the first system according to the startup instruction;
  • the first system may be an operating system such as an Android system, an IOS system, or a Windows system
  • the second system may also be one of the above systems.
  • the first system and the second system may both be Android systems.
  • the writing software of the second system is the writing software installed in the second system.
  • the handwriting display process needs to be displayed after HMDI encoding, transmission, and HDMI decoding.
  • a startup command can be sent to the first system through the second system, and a transparent writing layer is activated in the first system.
  • the transparent writing layer is activated, so that the transparent writing layer will overwrite the writing software of the second system.
  • the first system starts the transparent writing layer, that is, the background thereof is transparent, it is impossible for the user to perceive the existence of the transparent writing layer of the first system, and the startup process is not perceived.
  • the first drawing module 20 is configured to perform a handwriting drawing operation on the transparent writing layer according to the detected touch event, obtain a first handwriting, and display the first handwriting on the transparent writing layer;
  • the touch event start command issued by the system can be detected, and if detected, the touch event is determined to occur.
  • the touch event is determined to occur.
  • the handwriting attribute information may also be sent to the first system by the second system before performing the drawing operation, and the handwriting attribute information may include the thickness of the handwriting line, the definition of the handwriting line being a solid line or a broken line, and/or Or information such as the color of the handwriting lines.
  • the second system may transmit the altered handwriting attribute information to the first system after receiving the change instruction to the handwriting attribute information.
  • the first system may perform a handwriting drawing operation according to the handwriting attribute information, and display the drawn first handwriting on the transparent writing layer.
  • the first rendering module can include a rendering unit and a display unit, wherein the rendering unit can render the first handwriting, and the display unit can display the rendered first handwriting on the transparent writing layer. If the handwriting attribute information acquired by the first system includes handwriting lines Color information, which can be rendered according to the color information.
  • a second drawing module 30 configured to perform a handwriting drawing operation on the writing interface of the writing software according to the touch event, to obtain a second handwriting, and display the second handwriting on a writing layer of the second system;
  • the functions of the first rendering module 20 are performed, the functions of the module can be performed.
  • the module can draw the handwriting according to the predefined handwriting attribute information.
  • the modification event of the handwriting attribute information may also be detected. If detected, the handwriting is drawn according to the modified handwriting attribute information; otherwise, the handwriting drawing may be performed according to the default handwriting attribute information.
  • the two systems simultaneously process the touch event, and simultaneously draw the handwriting; since the user opens the writing software of the second system, Open the transparent writing layer of the first system, so the writing handwriting of the first system will completely cover the handwriting of the second system.
  • the handwriting is naturally the handwriting of the first system transparent writing layer, and the perception is not To the writing of the second system, but because the first system is transparent, the user will always think that he is using the writing software of the second system; the writing of the first system can speed up the writing of the second system.
  • the handwriting shows that this is because the display of the first system does not require a delay of HDMI codec, transmission or even encryption and decryption.
  • the split diagram of the handwriting drawing operation based on the dual system is shown in Fig. 2.
  • the black pattern represents the transparent writing layer of the first system and the handwriting thereon
  • the gray pattern represents the writing software of the second system and the handwriting thereon.
  • the transparent writing layer is overlaid on the writing software of the second system.
  • the first erasing module 40 is configured to erase the first handwriting if the handwriting drawing operation on the writing software is completed after detecting the end of the touch event.
  • the first system and the second system both write at the same time, the user perceives the writing of the first system, and when the user lifts the pen, the first system will clear the drawn handwriting. Recovering the transparent state without handwriting; when the handwriting of the first system disappears, the user will see the handwriting that has already been drawn by the second system. Since the handwriting of the two systems completely overlaps, the user does not perceive the first system handwriting disappearing. the process of. Whether the touch event is knotted can be determined by detecting a touch event end instruction bundle. When the touch event end instruction is detected, it may be determined that the touch event ends, otherwise, it is determined that the touch event has not ended. Taking the Android system as an example, the ACTION_UP event can be detected. If detected, the touch event can be determined to end, otherwise, the touch event is not ended.
  • the dual system based handwriting display system may further include: a handwriting editing module for performing a handwriting editing operation on the first handwriting and the second handwriting respectively according to the detected handwriting editing event; and a second erasure And a module, configured to erase the first handwriting after the handwriting editing operation on the writing interface is completed after detecting the end of the handwriting editing event.
  • the edited second handwriting also needs to pass the delay of HDMI codec, transmission, and even encryption and decryption when displaying.
  • the handwriting can be directly edited in the first system, and the edited handwriting can be directly displayed, thereby reducing the display delay when the handwriting is edited.
  • the handwriting editing operations may include operations such as handwriting movement and/or handwriting scaling.
  • the handwriting editing module may include a timing unit for starting timing after detecting the touch end event; and editing the unit, If the handwriting editing event is detected before the timing reaches the preset first time threshold, the handwriting editing operation is performed on the first handwriting according to the handwriting editing event. In this way, the time gap between the end of the touch event and the start of the handwriting editing event is reserved for the user, which is convenient for the user to operate. Further, if the editing event is not detected before the timing reaches the preset first time threshold, the first handwriting may be erased. Further, timing may be started when the handwriting editing operation is completed, and the first handwriting is erased when the timing reaches a preset second time threshold. When the user needs to continuously perform the handwriting editing operation, in the above manner, it is possible to avoid erasing the first handwriting before the handwriting editing operation is all ended.
  • the handwriting is simultaneously drawn by the dual system, and the acceleration of the handwriting display process is completed by the fast belt slow (the first system with the second system), by drawing and displaying on the transparent writing layer, and after the handwriting is drawn.
  • the fast belt slow the first system with the second system
  • the handwriting is drawn.
  • Clear the handwriting on the transparent writing layer completely display the handwriting of the second system to facilitate the user to perform other operations on the second system handwriting.
  • the handwriting does not need to pass HDMI codec and transmission delay when displaying, which reduces the delay in the handwriting display process. .
  • the dual system-based handwriting display processing system of the present invention has a one-to-one correspondence with the dual system-based handwriting display processing method of the present invention, and the technical features and beneficial effects thereof described in the above embodiment of the dual system-based handwriting display processing method are applicable.
  • the embodiment of the dual system based handwriting display processing system it is hereby declared.
  • the present invention also provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the dual system based handwriting display processing method of any of the above embodiments.
  • the method performed by the computer readable storage medium is the same as the dual system based handwriting display processing method in the above embodiment, and details are not described herein again.
  • the present invention also provides a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing the program to implement any of the above implementations
  • a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing the program to implement any of the above implementations
  • the method performed by the processor in the computer device is the same as the dual-system based handwriting display processing method in the above embodiment, and details are not described herein again.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or apparatus, or in conjunction with such an instruction execution system, apparatus, or apparatus.
  • computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if necessary, He processes it in a suitable manner to obtain the program electronically and then stores it in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

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Abstract

本发明涉及一种基于双系统的笔迹显示处理方法和系统、存储介质及设备，方法包括以下步骤：在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔迹，并将所述第一笔迹显示在所述透明书写层上；根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。上述方法和系统在显示时无需经过HDMI编解码和传输延时，降低了笔迹显示过程中的延时。

Description

基于双系统的笔迹显示处理方法和系统、存储介质及设备 技术领域
本发明涉及触摸屏技术领域，特别是涉及一种基于双系统的笔迹显示处理方法和系统、存储介质及设备。
背景技术
双系统显示设备是指包括两套完整的操作系统的电子设备。举例来说，双系统显示设备的操作系统可以由主安卓系统加其他安卓系统，或者由主安卓系统加Windows系统构成，一般将主安卓系统称为第一系统，另一系统称为第二系统。
目前，在双系统显示设备中，在对第二系统的信号进行显示时，第二系统的显示信号需要通过HDMI(High Definition Multimedia Interface，高清晰度多媒体接口)线物理连接至第一系统做显示输出，第一系统接收到第二系统的信号后进行HDMI解码并显示，第二系统一帧的画面需要经过HMDI编码、传输、HDMI解码之后才能呈现给用户。
那么，当电子书写软件放置在第二系统供用户使用的时候，用户每次在该书写软件上进行笔迹绘制时都会经历过上述的HDMI编解码和传输延时，导致笔迹显示过程中时延时较大。
发明内容
基于此，有必要针对时延时较大的问题，提供一种基于双系统的笔迹显示处理方法和系统、存储介质及设备。
一种基于双系统的笔迹显示处理方法，包括以下步骤：
在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；
根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔 迹，并将所述第一笔迹显示在所述透明书写层上；
根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；
在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。
一种基于双系统的笔迹显示处理系统，包括：
启动模块，用于在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；
第一绘制模块，用于根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔迹，并将所述第一笔迹显示在所述透明书写层上；
第二绘制模块，用于根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；
第一擦除模块，用于在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。
一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现基于双系统的笔迹显示处理方法。
一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现基于双系统的笔迹显示处理方法。
上述基于双系统的笔迹显示处理方法和系统、存储介质及设备，当第二系统的书写软件启动时，同时在第一系统启动透明书写层，并在第二系统的书写界面与第一系统的透明书写层上同时进行笔迹绘制及笔迹显示，在第二系统书写界面上的笔迹绘制操作完成之后，擦除透明书写层上的第一笔迹，用户感知到的是第一系统透明书写层上的第一笔迹，该第一笔迹在显示时无需经过HDMI编解码和传输延时，降低了笔迹显示过程中的延时。
附图说明
图1为一个实施例的基于双系统的笔迹显示处理方法流程图；
图2为一个实施例的基于双系统的笔迹绘制操作的拆分图；
图3为一个实施例的基于双系统的笔迹显示处理系统的结构示意图。
具体实施方式
下面结合附图对本发明的技术方案进行说明。
如图1所示，本发明提供一种基于双系统的笔迹显示处理方法，可包括以下步骤：
S1，在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；
在一个实施例中，第一系统可以是安卓系统、IOS系统或Windows系统等操作系统，第二系统也可以是上述系统之一。在一个典型的实施例中，第一系统和第二系统可均为安卓系统。第二系统的书写软件即为安装在第二系统中的书写软件。当通过第二系统的书写软件进行笔迹绘制时，笔迹显示过程需要经过HMDI编码、传输和HDMI解码之后才能显示出来。为了加快笔迹显示，在第二系统的书写软件启动时，可以通过第二系统向第一系统发送启动指令，在第一系统启动一层透明书写层。由于第二系统的书写软件启动在先，透明书写层启动在后，因此，透明书写层将覆盖在第二系统的书写软件之上。并且，由于第一系统启动的是透明书写层，也就是其背景是透明的，那么对用户来讲，是无法感知到第一系统透明书写层的存在，也感知不到这个启动过程。
S2，根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔迹，并将所述第一笔迹显示在所述透明书写层上；
在本步骤中，可以检测系统发出的触摸事件启动指令，若检测到，则判定发生触摸事件。以安卓系统为例，当检测到系统发出的ACTION_DOWN指令时，可判定发生触摸事件。在一个实施例中，在执行绘制操作之前，还可以通过第二系统向第一系统发送笔迹属性信息，该笔迹属性信息可包括笔迹线条的粗细、对笔迹线条是实线或虚线的定义和/或笔迹线条的颜色等信息。在进一 步的实施例中，第二系统可以在接收到对笔迹属性信息的更改指令之后，将更改后的笔迹属性信息发送到第一系统。第一系统在获取上述笔迹属性信息之后，可以根据笔迹属性信息执行笔迹绘制操作，并将绘制得到的第一笔迹显示在透明书写层上。在一个进一步的实施例中，还可以对第一笔迹进行渲染，并将渲染后的第一笔迹显示在透明书写层上。若第一系统获取的笔迹属性信息中包括笔迹线条的颜色信息，可根据该颜色信息对第一笔迹进行渲染。
S3，根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；
在执行步骤S2的同时，可执行本步骤。本步骤在执行笔迹绘制操作时，可根据预先定义的笔迹属性信息进行笔迹绘制。在执行笔迹绘制操作之前，还可以检测对笔迹属性信息的修改事件，若检测到，则根据修改后的笔迹属性信息进行笔迹绘制；否则，可根据默认的笔迹属性信息进行笔迹绘制。
通过执行步骤S2和步骤S3，当用户进行触摸书写的时候，两个系统同时处理触摸事件，将笔迹同时绘出；由于用户打开第二系统的书写软件后，再打开第一系统的透明书写层，所以第一系统的书写笔迹会完全盖在第二系统的笔迹上面，用户进行书写的时候，感知到的自然是第一系统透明书写层的笔迹，而感知不到第二系统的书写笔迹，但由于第一系统书写层透明的缘故，用户会认为自己在使用的一直都是第二系统的书写软件；通过第一系统的书写取代第二系统的书写可加快笔迹显示，这是因为第一系统的显示不需要经过HDMI编解码、传输甚至加解密的延时。基于双系统的笔迹绘制操作的拆分图如图2所示。在图2中，黑色图案表示第一系统的透明书写层及其上的笔迹，灰色图案表示第二系统的书写软件及其上的笔迹。透明书写层覆盖在第二系统的书写软件上。
S4，在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。
当用户从落笔到开始书写的时候，第一系统和第二系统均同时书写，用户感知的是第一系统的书写，而当用户抬笔的时候，第一系统将会清除掉绘制过 的笔迹，恢复无笔迹的透明状态；当第一系统的笔迹消失后，用户看到的将是第二系统早已绘制好的笔迹，由于两个系统的笔迹完全重叠，用户感知不到第一系统笔迹消失的过程。可通过检测触摸事件结束指令来判断触摸事件是否结束。当检测到所述触摸事件结束指令时，则可判定触摸事件结束，否则，判定触摸事件未结束。以安卓系统为例，可检测ACTION_UP事件，若检测到，则可判定触摸事件结束，否则，判定触摸事件未结束。
在检测到所述触摸事件结束之后，还可以根据检测的笔迹编辑事件分别对所述第一笔迹和第二笔迹执行笔迹编辑操作，在检测到所述笔迹编辑事件结束之后，若所述书写界面上的笔迹编辑操作完成，擦除所述第一笔迹。在传统技术中，当用户需要对第二系统的笔迹进行编辑时，编辑后的第二笔迹在显示时也需要经过HDMI编解码、传输甚至加解密的延时。通过采用上述方式，能够在第一系统直接对笔迹进行编辑，并对编辑后的笔迹直接进行显示，减少了笔迹编辑时的显示时延。在一个实施例中，笔迹编辑操作可包括笔迹移动和/或笔迹缩放等操作。
由于用户在绘制完笔迹之后，可能会先结束触摸事件，再进行笔迹编辑，因此，可以在检测到所述触摸结束事件之后，开始计时，若在计时达到预设的第一时间阈值之前检测到所述笔迹编辑事件，根据所述笔迹编辑事件对所述第一笔迹执行笔迹编辑操作。通过这种方式，为用户预留了触摸事件结束与笔迹编辑事件开始之间的时间间隙，方便用户操作。进一步地，若在计时达到预设的第一时间阈值之前未检测到所述编辑事件，可以擦除所述第一笔迹。更进一步地，可以从笔迹编辑操作完成时开始计时，当计时达到预设的第二时间阈值时，擦除所述第一笔迹。当用户需要连续进行笔迹编辑操作时，通过上述方式，可以避免在笔迹编辑操作全部结束之前擦除第一笔迹。
本方案通过双系统同时进行笔迹绘制，以快带慢(第一系统带第二系统)的方式完成笔迹绘制显示过程的加速，通过在透明书写层上进行绘制和显示，并在笔迹绘制结束后清除透明书写层上的笔迹，完全显示第二系统的笔迹以方便用户对第二系统笔迹进行其他操作，笔迹在显示时无需经过HDMI编解码和 传输延时，降低了笔迹显示过程中的延时。
如图3所示，本发明还提供一种基于双系统的笔迹显示处理系统，可包括：
启动模块10，用于在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；
在一个实施例中，第一系统可以是安卓系统、IOS系统或Windows系统等操作系统，第二系统也可以是上述系统之一。在一个典型的实施例中，第一系统和第二系统可均为安卓系统。第二系统的书写软件即为安装在第二系统中的书写软件。当通过第二系统的书写软件进行笔迹绘制时，笔迹显示过程需要经过HMDI编码、传输和HDMI解码之后才能显示出来。为了加快笔迹显示，在第二系统的书写软件启动时，可以通过第二系统向第一系统发送启动指令，在第一系统启动一层透明书写层。由于第二系统的书写软件启动在先，透明书写层启动在后，因此，透明书写层将覆盖在第二系统的书写软件之上。并且，由于第一系统启动的是透明书写层，也就是其背景是透明的，那么对用户来讲，是无法感知到第一系统透明书写层的存在，也感知不到这个启动过程。
第一绘制模块20，用于根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔迹，并将所述第一笔迹显示在所述透明书写层上；
在本模块中，可以检测系统发出的触摸事件启动指令，若检测到，则判定发生触摸事件。以安卓系统为例，当检测到系统发出的ACTION_DOWN指令时，可判定发生触摸事件。在一个实施例中，在执行绘制操作之前，还可以通过第二系统向第一系统发送笔迹属性信息，该笔迹属性信息可包括笔迹线条的粗细、对笔迹线条是实线或虚线的定义和/或笔迹线条的颜色等信息。在进一步的实施例中，第二系统可以在接收到对笔迹属性信息的更改指令之后，将更改后的笔迹属性信息发送到第一系统。第一系统在获取上述笔迹属性信息之后，可以根据笔迹属性信息执行笔迹绘制操作，并将绘制得到的第一笔迹显示在透明书写层上。在一个进一步的实施例中，第一绘制模块可包括渲染单元和显示单元，其中，渲染单元可以对第一笔迹进行渲染，显示单元可将渲染后的第一笔迹显示在透明书写层上。若第一系统获取的笔迹属性信息中包括笔迹线条的 颜色信息，可根据该颜色信息对第一笔迹进行渲染。
第二绘制模块30，用于根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；
在执行第一绘制模块20功能的同时，可执行本模块的功能。本模块在执行笔迹绘制操作时，可根据预先定义的笔迹属性信息进行笔迹绘制。在执行笔迹绘制操作之前，还可以检测对笔迹属性信息的修改事件，若检测到，则根据修改后的笔迹属性信息进行笔迹绘制；否则，可根据默认的笔迹属性信息进行笔迹绘制。
通过执行第一绘制模块20和第二绘制模块30的功能，当用户进行触摸书写的时候，两个系统同时处理触摸事件，将笔迹同时绘出；由于用户打开第二系统的书写软件后，再打开第一系统的透明书写层，所以第一系统的书写笔迹会完全盖在第二系统的笔迹上面，用户进行书写的时候，感知到的自然是第一系统透明书写层的笔迹，而感知不到第二系统的书写笔迹，但由于第一系统书写层透明的缘故，用户会认为自己在使用的一直都是第二系统的书写软件；通过第一系统的书写取代第二系统的书写可加快笔迹显示，这是因为第一系统的显示不需要经过HDMI编解码、传输甚至加解密的延时。基于双系统的笔迹绘制操作的拆分图如图2所示。在图2中，黑色图案表示第一系统的透明书写层及其上的笔迹，灰色图案表示第二系统的书写软件及其上的笔迹。透明书写层覆盖在第二系统的书写软件上。
第一擦除模块40，用于在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。
当用户从落笔到开始书写的时候，第一系统和第二系统均同时书写，用户感知的是第一系统的书写，而当用户抬笔的时候，第一系统将会清除掉绘制过的笔迹，恢复无笔迹的透明状态；当第一系统的笔迹消失后，用户看到的将是第二系统早已绘制好的笔迹，由于两个系统的笔迹完全重叠，用户感知不到第一系统笔迹消失的过程。可通过检测触摸事件结束指令来判断触摸事件是否结 束。当检测到所述触摸事件结束指令时，则可判定触摸事件结束，否则，判定触摸事件未结束。以安卓系统为例，可检测ACTION_UP事件，若检测到，则可判定触摸事件结束，否则，判定触摸事件未结束。
在一个实施例中，基于双系统的笔迹显示系统还可包括：笔迹编辑模块，用于根据检测的笔迹编辑事件分别对所述第一笔迹和第二笔迹执行笔迹编辑操作；以及第二擦除模块，用于在检测到所述笔迹编辑事件结束之后，若所述书写界面上的笔迹编辑操作完成，擦除所述第一笔迹。在传统技术中，当用户需要对第二系统的笔迹进行编辑时，编辑后的第二笔迹在显示时也需要经过HDMI编解码、传输甚至加解密的延时。通过采用上述方式，能够在第一系统直接对笔迹进行编辑，并对编辑后的笔迹直接进行显示，减少了笔迹编辑时的显示时延。在一个实施例中，笔迹编辑操作可包括笔迹移动和/或笔迹缩放等操作。
由于用户在绘制完笔迹之后，可能会先结束触摸事件，再进行笔迹编辑，因此，笔迹编辑模块可包括计时单元，用于在检测到所述触摸结束事件之后，开始计时；以及编辑单元，用于若在计时达到预设的第一时间阈值之前检测到所述笔迹编辑事件，根据所述笔迹编辑事件对所述第一笔迹执行笔迹编辑操作。通过这种方式，为用户预留了触摸事件结束与笔迹编辑事件开始之间的时间间隙，方便用户操作。进一步地，若在计时达到预设的第一时间阈值之前未检测到所述编辑事件，可以擦除所述第一笔迹。更进一步地，可以从笔迹编辑操作完成时开始计时，当计时达到预设的第二时间阈值时，擦除所述第一笔迹。当用户需要连续进行笔迹编辑操作时，通过上述方式，可以避免在笔迹编辑操作全部结束之前擦除第一笔迹。
本方案通过双系统同时进行笔迹绘制，以快带慢(第一系统带第二系统)的方式完成笔迹绘制显示过程的加速，通过在透明书写层上进行绘制和显示，并在笔迹绘制结束后清除透明书写层上的笔迹，完全显示第二系统的笔迹以方便用户对第二系统笔迹进行其他操作，笔迹在显示时无需经过HDMI编解码和传输延时，降低了笔迹显示过程中的延时。
本发明的基于双系统的笔迹显示处理系统与本发明的基于双系统的笔迹显示处理方法一一对应，在上述基于双系统的笔迹显示处理方法的实施例阐述的技术特征及其有益效果均适用于基于双系统的笔迹显示处理系统的实施例中，特此声明。
在另一个实施例中，本发明还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述任意实施例中的基于双系统的笔迹显示处理方法。
该计算机可读存储介质所执行的方法与上述实施例中的基于双系统的笔迹显示处理方法相同，此处不再赘述。
在另一个实施例中，本发明还提供一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上述任意实施例中的基于双系统的笔迹显示处理方法。
该计算机设备中的处理器所执行的方法与上述实施例中的基于双系统的笔迹显示处理方法相同，此处不再赘述。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，“计算机可读介质”可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。
计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其 他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
应当理解，本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种基于双系统的笔迹显示处理方法，其特征在于，包括以下步骤：
    在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；
    根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔迹，并将所述第一笔迹显示在所述透明书写层上；
    根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；
    在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。
  2. 根据权利要求1所述的基于双系统的笔迹显示处理方法，其特征在于，将所述第一笔迹显示在所述透明书写层上的步骤包括：
    对所述第一笔迹进行渲染；
    将渲染后的第一笔迹显示在所述透明书写层上。
  3. 根据权利要求1所述的基于双系统的笔迹显示处理方法，其特征在于，在检测到所述触摸事件结束之后，还包括以下步骤：
    根据检测的笔迹编辑事件分别对所述第一笔迹和第二笔迹执行笔迹编辑操作；
    在检测到所述笔迹编辑事件结束之后，若所述书写界面上的笔迹编辑操作完成，擦除所述第一笔迹。
  4. 根据权利要求3所述的基于双系统的笔迹显示处理方法，其特征在于，根据检测的笔迹编辑事件分别对所述第一笔迹和第二笔迹执行笔迹编辑操作的步骤包括：
    在检测到所述触摸结束事件之后，开始计时；
    若在计时达到预设的第一时间阈值之前检测到所述笔迹编辑事件，根据所述笔迹编辑事件对所述第一笔迹执行笔迹编辑操作。
  5. 根据权利要求4所述的基于双系统的笔迹显示处理方法，其特征在于， 还包括以下步骤：
    若在计时达到预设的第一时间阈值之前未检测到所述编辑事件，擦除所述第一笔迹。
  6. 根据权利要求4所述的基于双系统的笔迹显示处理方法，其特征在于，还包括以下步骤：
    从笔迹编辑操作完成时开始计时；
    当计时达到预设的第二时间阈值时，擦除所述第一笔迹。
  7. 一种基于双系统的笔迹显示处理系统，其特征在于，包括：
    启动模块，用于在第二系统的书写软件启动时，通过第二系统向第一系统发送启动指令，根据所述启动指令在第一系统启动透明书写层；
    第一绘制模块，用于根据检测的触摸事件在所述透明书写层上执行笔迹绘制操作，得到第一笔迹，并将所述第一笔迹显示在所述透明书写层上；
    第二绘制模块，用于根据所述触摸事件在所述书写软件的书写界面上执行笔迹绘制操作，得到第二笔迹，并将所述第二笔迹显示在第二系统的书写层上；
    第一擦除模块，用于在检测到所述触摸事件结束之后，若所述书写软件上的笔迹绘制操作完成，擦除所述第一笔迹。
  8. 根据权利要求7所述的基于双系统的笔迹显示处理方法，其特征在于，还包括：
    笔迹编辑模块，用于根据检测的笔迹编辑事件对所述第一笔迹和第二笔迹执行笔迹编辑操作；
    第二擦除模块，用于在检测到所述笔迹编辑事件结束之后，若所述书写界面上的笔迹编辑操作完成，擦除所述第一笔迹。
  9. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现权利要求1至6任意一项所述的基于双系统的笔迹显示处理方法。
  10. 一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现权利要 求1至6任意一项所述的基于双系统的笔迹显示处理方法。
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