CN118819523A - QT monitoring interface generation, instruction generation and information refresh method based on JSON text - Google Patents

Abstract

The invention belongs to the technical field of computer processing, and relates to a method for generating a QT monitoring interface, generating instructions and refreshing information based on JSON text. Meanwhile, refreshing of equipment state monitoring information and generation of equipment control instructions can be completed, development efficiency is improved, and development complexity is reduced.

Description

QT monitoring interface generation, instruction generation and information refresh method based on JSON text

Technical Field

The present invention belongs to the technical field of computer processing, and relates to a method for generating a QT monitoring interface, generating instructions and refreshing information based on JSON text.

Background Art

Normally, the monitoring software displays the status of the device to the user through a graphical interface, and the user issues control instructions to the device through the graphical interface. Due to the wide variety of device models, the number and content of monitoring parameters are also completely different. The monitoring interface is generally implemented using the UI design tools provided by the development environment, hard coding, or a combination of the two. When designing the monitoring interface using the UI design tool, the developer needs to implement the required controls one by one in the design window according to the number and content of the device monitoring parameters. This method is convenient and intuitive, and is suitable for junior developers to develop monitoring interfaces with a small number of device monitoring parameters and simple content, but it is not conducive to the expansion and reuse of control functions, and the software development and debugging cycle will increase when the number of monitoring parameters changes. The monitoring interface implemented using hard coding has certain scalability and maintainability, but it is not convenient and intuitive enough, and the interface layout is difficult.

In actual applications, the monitoring and control instructions for different types of equipment often change during the software development stage. Developers need to spend a lot of time implementing changes to monitoring interface controls and writing corresponding functions for the controls. This is a large workload, prone to errors, and inefficient.

Summary of the invention

Aiming at the shortcomings in the development of current monitoring software equipment monitoring interface and instructions, the present invention provides a QT monitoring interface generation, instruction generation and information refresh method based on JSON text. Based on JSON structured text content, the dynamic generation of a universal monitoring interface under the QT framework is realized, and developers are no longer required to write customized codes. At the same time, the refreshing of equipment status monitoring information and the generation of equipment control instructions can be completed, which improves development efficiency and reduces development complexity.

The technical solution adopted by the present invention is:

A method for generating a QT monitoring interface based on JSON text, comprising the following steps:

Step 1: Use hard coding to create and initialize the monitoring interface window, including the setting of size and position, layout and style sheet;

Step 2: Read and parse the JSON text to determine whether the read content is standard; if so, instantiate an initial JSON object and store the JSON text content, otherwise end;

Step 3: Use hard coding to create a multi-page container component for the tab page and add it to the monitoring interface window. Based on the number and name of the pages in the JSON object, create a table control for each page and set the table style sheet to add it to the multi-page container component for the tab page.

Step 4: Traverse the key-value pairs based on the JSON object, and assign the key values to table items respectively; the table items are divided into parameter items and parameter values, the number of table rows corresponds to the number of key values, the parameter items correspond to the object key names, and the parameter values correspond to the object values; and create different types of table controls according to the value content, including edit boxes, drop-down boxes, selection boxes, selection switches, and sliders, and overlay them in the table cells;

Step 5. Use hard coding to create a button control and add it to the monitoring interface window. Use the same layout as the multi-page container component of the tab page, and add corresponding slot functions to each button control to generate and issue device control instructions, and dynamically add, delete, and save monitoring interface parameters.

A method for generating an instruction includes the following steps:

Traverse all parameter items in the table control of the current monitoring interface window and obtain parameter values, assign values one by one based on the instantiated JSON object, and then complete the instruction generation after converting the parameter attributes into hexadecimal values.

A state information refreshing method includes the following steps:

After receiving the status information data, based on the container stored when the QT monitoring interface is generated, the status information interface of the corresponding value is obtained according to the command word type; then all rows of the table in the monitoring interface window are traversed, and combined with the JSON object instantiated in the monitoring interface window, the parameter value of each row is updated in turn to complete the status information refresh.

The advantages of the present invention compared to the background technology are:

1. High development efficiency: It provides templated refactoring code, which eliminates the need for developers to carry out customized development, improves code reuse rate, reduces developer workload, and effectively improves work efficiency;

2. Readability and easy modification: JSON text is formatted text with clear and concise structure and content, and high readability, which is suitable for non-software developers to read and modify;

3. Versatility and wide applicability: The monitoring interface generation, status information refresh and control instruction generation methods can be applied to multiple platforms, multiple systems and multiple scenarios, and have high versatility and wide applicability.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a method for dynamically generating a QT monitoring interface based on JSON text according to the present invention.

FIG. 2 is a flow chart of a method for generating device control instructions according to the present invention.

FIG3 is a flow chart of a method for refreshing device status information according to the present invention.

DETAILED DESCRIPTION

The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , a method for generating a QT monitoring interface based on JSON text according to an embodiment of the present invention comprises the following steps:

Step 1: Use hard coding to create and initialize the monitoring interface window, including the size and position settings, layout settings, and style sheet settings; specifically:

1) Use the code to create and initialize the monitoring interface window m_GeneralWindow, which is derived from the QWidget class;

2) Set the window size and position. Here the window is located in the display center and the size is set to Qsize(600, 800);

3) Set the window layout mode to horizontal layout mode;

4) Set the window style sheet, use the setWindowFlags() function to set the window multi-flag mode, and set the window transparency ratio to 0.95.

Step 2: Read and parse the JSON text to determine whether the read content is standard; if so, instantiate an initial JSON object to store the JSON text content; specifically include:

1) Use QJsonDocument to instantiate the object to read the JSON text and determine whether the read content is standard;

2) If so, instantiate an initial QJsonObject object m_InitObj to store the JSON text content.

Step 3: Use hard coding to create a multi-page container component for the tab page and add it to the window. Initialize the number and name of the container pages based on the JSON object. Create a table control for each page, set the table style sheet and add it to the tab page container component; specifically:

1) Use hard coding to create a component object m_TabWidget derived from the QTabWidget class and add it to the window;

2) Initialize the m_TabWidget container based on the m_InitObj object in step 2, obtain the number of instructions in the m_InitObj object and create a corresponding number of pages, and set the page title to the instruction name;

3) In each page of step 2), create a table control derived from the QTableWidget class and set the style sheet mode of the table. The table contains two columns, the first column header is set to the parameter item, and the second column header is set to the parameter value;

4) Instantiate an object m_tablemap of QMap<QString,QPair<int,QTableWidget*>> type to store the currently created page table and its name for easy traversal and query. Among them, QString is the page table name, int in Qpair<int,QTableWidget*>> represents the command word used to distinguish the instruction type, and QTableWidget* is the table instantiation object pointer.

Step 4: Based on the JSON object, traverse its key-value pairs and assign key values to table items. Table items are divided into parameter items and parameter values. The number of table rows corresponds to the number of key values, the parameter items correspond to the object key names, and the parameter values correspond to the object values. Different types of controls (including edit boxes, drop-down boxes, selection boxes, selection switches, sliders, etc.) are created according to their value contents and superimposed on the table cells. Specifically, they include:

1) Based on the JSON object, traverse its key-value pairs and assign key values to table items respectively. The number of key-value pairs is determined by the parameter number key;

2) Table items are divided into parameter items and parameter values. The number of table rows corresponds to the number of key values, the parameter items correspond to the object key names, and the parameter values correspond to the object values. Specifically, the parameter item content of the first row of the table is the name of parameter 1, and the parameter value is the value of parameter 1. Similarly, the parameter item content of the Nth row of the table is the name of parameter N, and the parameter value is the value of parameter N;

3) Create different types of controls (including edit boxes, drop-down boxes, selection boxes, selection switches, sliders, etc.) according to their value contents. Specifically, the properties of parameter N include nine items: data type, display name, control type, parameter associated value, value content, ratio, regular check formula, display or not, and prompt information. The following are detailed introductions:

The data type is used to distinguish different types of data, including 11 types such as char, uchar, int, uint, short, ushort, float, double, byte, string and file. Among them, string indicates a string type, byte is used to implement reserved bits, and file indicates that this type is a file type; for the file type, the specific content is that the file content is an m*n digital matrix separated by spaces.

The display name is used to display the content to the user on the interface. The content is a QString string.

The control type is used to distinguish different types of controls, including lineedit edit boxes, combox drop-down selection boxes, label selection boxes, switch selection switches, slider sliders, etc. All control instances are derived from custom control classes, which are derived from native controls to achieve unique functions and effects.

The parameter association value is used to describe the correlation between the actual value of the parameter value and the content displayed on the interface. For the drop-down selection box control, the actual value and the content displayed on the interface correspond one to one; in addition, when the data type is file, the value content indicates that the data represents a theoretical m*n matrix, and the actual text content only takes the m1*n1 matrix value, and the matrix type is char, short, float or double, etc.; for other controls, this parameter can be ignored;

The value content is the content used to generate instructions. For edit box and selection box controls, the value content is the same as the display content. For selector switch controls, the value is 1 when the control state is on, and the value is 0 when the control state is off. For slider controls, the value content is the actual value of the slider.

The ratio is used to indicate the ratio coefficient of the current value content. Specifically, the actual delivered value is equal to the current value content multiplied by the ratio coefficient;

The regular validation formula is used to verify in real time whether the content entered into the edit box control meets the requirements. The regular validation formula adopts the regular expression method.

Whether to display is used to control whether the parameter is displayed in the interface. It should be noted that this parameter only controls the display and hiding of the parameter item in the interface, and does not mean that the parameter needs to be skipped. Specifically, it is displayed when the value is 1, and hidden when it is 0;

The prompt information is used to prompt the user with relevant information of the parameter;

4) Based on the control created in step 3), overlay it in the corresponding cell of the table. The Nth row of the table is used to display the Nth parameter. The first column of the Nth row is assigned the display name of parameter N, and the second column uses the setCellWidget() function to overlay the control to display the parameter value.

Step 5: Use hard coding to create a button control and add it to the window container, using the same layout as the tab container to achieve functions such as the generation and issuance of device control instructions, dynamic addition, deletion and saving of monitoring interface parameters, etc.; specifically:

1) Use coding to create two button controls: the set button and the save button.

2) Add the control to the window container and use the same layout as the tab container;

3) Based on the signal slot mechanism, add corresponding slot functions for each button control. Set the button slot function to automatically generate control instructions from the current interface content and send them to the corresponding device; save the button slot function to save the current interface content to the corresponding JSON text.

As shown in FIG. 2 , an instruction generation method according to an embodiment of the present invention comprises the following steps:

Step 1. Get the table control of the current interface. The table control is obtained based on the QMap container when the interface is generated. The name of the current interface is used as the key, and its value is equal to the table control QtableWidget* pointer;

Step 2: Traverse all rows of the current table control and obtain the parameter name and parameter value of each row;

Step 3: Based on the JSON text object, perform hexadecimal conversion on the parameter value according to the data type and generate a control instruction.

The specific conversion method of parameter values is as follows:

1) For the edit box control, directly convert the parameter value into a hexadecimal value after obtaining it;

2) For the drop-down box control, after obtaining the parameter value, traverse the value content of the JSON object, finally get the real value, and convert it into a hexadecimal value according to the parameter data type;

3) For the selection box control, after obtaining the parameter value, the parameter associated value is obtained based on the JSON object, and the text is opened by QFile and read line by line. The read string is split using the spilt() function; then, hexadecimal conversion is performed based on the parameter data type; finally, it is determined whether the number of read lines exceeds the theoretical value. If so, the file is closed, otherwise, the reading continues;

4) For the selection switch control, the value is 1 when the switch is valid and 0 when it is invalid, and then the hexadecimal conversion is performed according to the data type;

5) For the slider control, after obtaining its control value, perform hexadecimal conversion according to the data type.

As shown in FIG3 , a method for refreshing status information according to an embodiment of the present invention includes the following steps:

Step 1: Receive and parse status information data to obtain status information command words;

Step 2: Based on the QMap container stored when the interface is generated, the status information interface of the corresponding value is obtained according to the key of the command word type as an index;

Step 3: Traverse all rows in the page table, combine the JSON object instantiated by the interface, update the parameter value of each row in turn, and complete the status information refresh.

The monitoring interface generation method, instruction generation method and status information refresh method implemented by the present invention are based on JSON formatted text, and realize the QT monitoring interface dynamic generation, instruction generation and information refresh method. Non-developers can complete the generation of monitoring interface and instructions by directly modifying JSON text, without additional training and learning software configuration instructions; developers do not need to modify software code and repeatedly release software, which improves development efficiency and reduces development costs.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims (3)

1. A QT monitoring interface generation method based on JSON text is characterized by comprising the following steps:

Step 1, creating and initializing a monitoring interface window by using a hard coding mode, wherein the monitoring interface window comprises setting of size and position, setting of a layout mode and setting of a style sheet;

Step 2, reading and analyzing the JSON text, and judging whether the read content is standard or not; if yes, instantiating an initial JSON object, storing JSON text content, and otherwise, ending;

Step 3, creating a multi-page container assembly of the tag page by using a hard coding mode, adding the multi-page container assembly of the tag page into a monitoring interface window, creating a form control for each page based on the page number and the name of the JSON object, and setting a form style sheet to be added into the multi-page container assembly of the tag page;

Step 4, traversing key value pairs based on the JSON object, and respectively assigning the key values with table items; the table items are divided into parameter items and parameter values, the number of the table rows corresponds to the number of the key values, the parameter items correspond to the key names of the objects, and the parameter values correspond to the object values; respectively creating different types of form controls according to the value content, wherein the form controls comprise an editing frame, a drop-down frame, a selection switch and a sliding bar, and the form controls are overlapped into form cells;

And 5, creating button controls by using a hard coding mode, adding the button controls into a monitoring interface window, using the same layout with the multi-page container assembly of the label page, and respectively adding corresponding slot functions for each button control for realizing the generation and issuing of equipment control instructions, and the dynamic addition and deletion and storage functions of monitoring interface parameters.

2. A method of instruction generation, characterized in that it is based on QT monitoring interface implementation produced in claim 1, comprising the following processes:

Traversing all parameter items in the window form control of the current monitoring interface, acquiring parameter values, assigning values one by one based on the instantiated JSON objects, and completing instruction generation after converting the values into hexadecimal values according to the parameter attributes.

3. A state information refreshing method, which is characterized by being realized based on the QT monitoring interface generated in claim 1, and comprising the following procedures:

After receiving the state information data, acquiring a state information interface of a corresponding value according to the type of the command word based on a container stored when the QT monitoring interface is generated; and traversing all rows of the table in the monitoring interface window, and sequentially updating the parameter value of each row by combining with the JSON object instantiated by the monitoring interface window to finish the state information refreshing.