CN106557457A - A kind of system for automatically generating cross-platform Complicated Flow figure based on QT - Google Patents
A kind of system for automatically generating cross-platform Complicated Flow figure based on QT Download PDFInfo
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- CN106557457A CN106557457A CN201611061266.2A CN201611061266A CN106557457A CN 106557457 A CN106557457 A CN 106557457A CN 201611061266 A CN201611061266 A CN 201611061266A CN 106557457 A CN106557457 A CN 106557457A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F40/00—Handling natural language data
- G06F40/10—Text processing
- G06F40/166—Editing, e.g. inserting or deleting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
- G06T11/206—Drawing of charts or graphs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/60—Editing figures and text; Combining figures or text
Abstract
The invention discloses a kind of system for automatically generating cross-platform Complicated Flow figure based on QT, including flow chart element figure drafting module, flow graph construction describing module, flow monitoring function supporting module and flow monitoring application supporting module；The flow chart element figure drafting module is inherited and is derived from from the base class that QT is provided, and forms the parent map metaclass of flow chart；The flow graph construction describing module is for whole flow process figure is described by structured way, and carries out format analysis to description, and information is placed in correspondence container；The flow monitoring function supporting module is used for the setting of flow chart display styles, network transmission, database access, connection and closed loop inspection, and the switching of different grain size flow process；The flow monitoring application supporting module is used for topological sorting, task scheduling, critical path and shortest path and calculates, and supports construction network figure application.
Description
Technical field
The invention belongs to field of information system, more particularly to a kind of cross-platform Complicated Flow figure that automatically generates based on QT
System.
Background technology
The characteristics of graphic process monitoring interface has visual pattern, should be readily appreciated that, interact convenient, easy to operate, is each
Class application operating personnel and the first-selection of application developer.Based on windows platform, each software vendor provides and can much carry out two
The flow chart control product of secondary exploitation, such as Microsoft Microsoft Office Visio, expert EDraw Max, arrow shown in hundred million figures
Amount image rendering software Diagram Designer etc..Visio is wherein the most widely used product, can be carried out various multiple
Miscellaneous graphic designs, powerful, rich interface, and pel customization function is provided.
However, under the megatrend of software and hardware production domesticization, types of applications software starts to Godson CPU, acceptance of the bid kylin
Operating system, migrated up to dream data base for the production domesticization hardware environment of Typical Disposition, for Application developer,
Urgent need has a set of lightweight and is easy to the flow chart control based on production domesticization hardware and software platform of secondary development.
Diagram Designer are a powerful cross-platform programs, establishment in a document that can be quick and easy
The icon and illustration of specialty, there is provided vector plotting instrument, storehouse and many preset legend shapes, but the operation ring to software and hardware
Border requires higher；ConceptDraw Office are also a kind of cross-platform control product, but which has the disadvantage bulky, interface
Complexity, being not suitable for being embedded into application system carries out secondary development.Up till now, also do not find on market a set of based on production domesticization soft or hard
Compact, relatively low to the running environment requirement flow chart control of part platform, perfect in shape and function, the light, scale of exploitation.
The content of the invention
This patent purpose is to propose a kind of system for automatically generating cross-platform Complicated Flow figure based on QT, including flow chart
Element figure drafting module, flow graph construction describing module, flow monitoring function supporting module and flow monitoring application are supported
Module.
Base class QObject (base class of all classes of QT) that the flow chart element figure drafting module is provided from QT,
QGraphicsItem (X-Y scheme base class in QT graphics view systems), QGraphicsLineItem (QT graphics view systems
Middle linear graph base class), the basic class such as QGraphicsLayoutItem (layout object base class in QT graphics view systems) carries out
Inherit and derive from, form the parent map metaclass of flow chart, the parent map metaclass includes connecting line class and node class；
The flow graph construction describing module for whole flow process figure is described by structured way, including stream
The description of journey figure overall information, branch's procedure information, nodal information and connecting line information, and format analysis are carried out to description, will
Information is placed in correspondence container；
The flow monitoring function supporting module is used for the setting of flow chart display styles, network transmission, database access, company
Logical and closed loop inspection, and the switching of different grain size flow process；
The flow monitoring application supporting module is used for topological sorting, task scheduling, critical path and shortest path and calculates,
Support construction network figure application.
To make flow chart be evenly distributed, showing attractive in appearance, the system combines the layout device function that QT X-Y schemes engine is provided,
According to flow chart general outline, a matrix, the row, column pair that each node of flow chart is specified in respectively falling in matrix are pre-set
The position answered, flow chart control make node align automatically according to default line-spacing and row away from calculate node center；Connecting line
Only need to connect start node and the terminal node specified.
Connecting line class of the present invention includes tieline class, parallel connection line class and bifurcated connecting line class；
The tieline class is straight line, is directly connected to two pels, and draws at purpose pel junction point
Triangle arrow；
There is the parallel connection line of more than two between two pels in the parallel connection line class, for drafting with it is direct
The parallel indirect connection line of connecting line；
The bifurcated connecting line class splits into two or more flow process from main flow, or collects for main flow from two or more flow process
Cheng Shi, draws branch line and collects line.
Node class of the present invention includes circular pattern node class and square graphical nodes class, the square graphical nodes class
Including rectangular pattern node class and square-shaped patterns node class.
Description to flow chart overall information, branch's procedure information, nodal information and connecting line information of the present invention is
Based on expandable mark language XML (Extensible Markup Language), wherein, flow chart overall information attribute bag
Include：
1) flow process unique mark：Unique symbol for distinguishing flow process；
2) father's flow process unique mark：Father's flow process (top-level process) symbol of this flow process is distinguished uniquely, by the attribute reality
Now this flow process switches to father's flow process, i.e. different grain size flow process switching；
3) whether complex patterns：It is simple mode or complex patterns to distinguish flow chart, and simple mode flow chart is around work
Dynamic main line is drawn, and complex patterns do not have movable main line.
Branch's flow process information attribute includes：
1) title：Branch's process name (can be regarded as activity or task)；
2) correspondence unit unique mark：Undertake unique differentiation symbol of the unit of the flow process or task；
3) whether main flow：Whether in simple mode flow chart, it is the flow process on movable main line to identify branch's flow process；
4) be expert at sequence number：The row sequence number that current branch flow process is located.
Nodal information attribute includes：
1) title：The title of present node；
2) node unique mark：Unique symbol for distinguishing node；
3) flow process unique mark：The unique mark of the flow chart belonging to present node；
4) correspondence unit unique mark：Unique differentiation symbol of the unit of current connecting line association
5) be expert at sequence number：The row sequence number that node is located；
6) column sequence number：The row sequence number that node is located；
7) node state：The progress of activity or task representated by present node, can be extended as needed；
8) with previous node distance：On a same row the distance between with previous node.
Connecting line information attribute includes：
1) content description：Content representated by connecting line；
2) connecting line unique mark：Unique symbol for distinguishing connecting line；
3) connecting line type：Connecting line type is distinguished, 0 represents tieline, and 1 represents that parallel connection line, 2 represent bifurcated
Collect connecting line
4) whether top：When connecting line type is to be connected in parallel line, the parallel connection line for representing current is directly to connect
The top or lower section of wiring；
5) away from main flow distance：When connecting line type is to be connected in parallel line, current parallel connection line and centre are represented
The distance between tieline parallel lines；
6) whether collect：When connecting line type collects connecting line for bifurcated, indicate whether to collect connecting line
7) correspondence unit unique mark：Unique differentiation symbol of the unit of current connecting line association；
8) start node unique mark：The start node of current connecting line connection uniquely distinguishes symbol；
9) terminal node unique mark：The start node of current connecting line connection uniquely distinguishes symbol.
Flow monitoring function supporting module of the present invention is used for the setting of flow chart display styles, network transmission, data base
Access, connection and closed loop inspection, the switching of different grain size flow process include：
Based on QT X-Y scheme engines, the setting of flowchart display styles, including font color, size, lines
Color, thickness, flow chart background, flow chart pel gap size, background color；
Based on the network transmission function that QtNetWork (cross-platform network module) is provided, realize that network is passed with remote terminal
Defeated and information receiving and transmitting；
The access of database table and view is realized based on QtSql (database access module), realizes that data base reads and deposits
Storage operation；
Based on the database access in QtXML (XML file module for reading and writing) or QtNetWork (cross-platform network module)
Interface, parses to the structure of flow chart, forms overall information, branch's Process containers, node container and the connection of flow chart
Line container；
For all kinds of information of container, by the connection inspection and closed loop inspection of directed graph related algorithm flowchart；It is logical
The connection inspection of directed graph related algorithm flowchart, such as Tarjan algorithms, Kruskal algorithms, Warshall algorithms are crossed, is led to
Cross the methods such as depth-first, topological sorting and realize closed loop inspection；
Believed by the flow process unique mark of father's flow process unique identification information and specified nodal information of flow chart overall information
Breath return back to top-level process figure and enters the corresponding refined flow chart of ingress, realizes the switching of different grain size flow process；
User is provided and enters edlin maintenance function to flow chart, and preserve warehouse-in or form XML file.
Flow monitoring application supporting module of the present invention is based on topological sorting, task scheduling, key and shortest path
Calculate, support that construction network figure application includes：
For branch's Process containers, node container and connecting line container, based on directed graph topological sorting method, there is provided flow process
Topological sorting and task scheduling function；
For application demand, based on the application parameter information that connecting line or node give, the such as network bandwidth, treatment effeciency
Path can be converted into Deng, application parameter or cost is spent, it is external using graph key path and figure shortest path first
The functional interface for solving critical path and shortest path is provided；
Based on the application parameter information that connecting line or node give, there is provided based on AOE nets (Activity On Edge
Network, activity-on-edge network) or AOV nets (Activity On Vertex Network put the net of expression activity) are most
The early time started, late start time, can late time started, total time kept in reserve and free time kept in reserve calculating and the time carry
Awake function.
The system possesses structure elucidation, flow process and shows and flow monitoring function, including：
Class is parsed by flow chart and parses the primitive information stored in data base or XML configuration file, including nodal information,
Continuous relation information and node other application information before and after between node；
Flow chart display window class parses information according to flow graph construction and draws each pel, and is respectively schemed by layout device layout
Unit, builds entire flow figure；
Monitoring programme class by port snoop class receive pel correspondence unit send status information, real-time update pel and
Network chart state, and call flow chart core algorithm automatically, analyze current operating state, point out user, and according to user's needs
Call concrete function.
Secondary development is carried out based on the system, user can inherit the section for deriving new attribute on the basis of on going result
Point class and connecting line class, expand the function that flow process shows；Meanwhile, user can customize topographical analysis algorithm, and work(is applied in superposition
Can, lifted to applied analysis and aid decision ability, realize all kinds of flow monitorings of finding and gained.
The system perfect in shape and function, the light, scale of exploitation are compact, relatively low to running environment requirement, can be good at supporting state
The exploitation and operation of productization hardware and software platform flow monitoring application software.
The flow chart control of the QT language developments that this flow chart control development is carried in being based entirely on domestic operating system,
The domestic operating system that existing domestic Ji great production firms provide carries QT development environments, and such as University of Science and Technology for National Defence and acceptance of the bid software is public
The acceptance of the bid kylin operating system that department's joint is issued carries version for 4.7.4QT development environments.This flow chart control need not be in addition
Purchase and installation development environment, small volume and less weight, cross-platform operation, disclosure satisfy that substantially conventional flow chart secondary development demand and answer
Use demand.
The system is directly inherited and is derived from from QT bases X-Y scheme class, is realized all kinds of basic needed for flow monitoring
Pel, including be directly connected to, be connected in parallel and bifurcated connect three kinds of connecting lines, square, circular two classes flow nodes；Based on structure
Change mode is defined and is described to monitoring flow process, checks that aided algorithm ensures that flow chart builds using connectivity checks and closed loop
Correct effectiveness, there is provided the development interface that the attribute of all kinds of pels is obtained and changed, form flow chart control development.Using soft
Part carries out integrated and configuration to the system, with reference to functions such as database access, network transmission and aid decisions, disclosure satisfy that each
Plant the flow monitoring application demand of complicated demand；As the system is all based on QT realizations, being capable of across different operating system platform
It is compiled, accomplishes once to write, runs everywhere；Meanwhile, the system is relatively low to soft hardware performance requirement, in current software and hardware state
Under the megatrend of productization, preferable technical support is provided for application software flow process graphical representation.
Beneficial effect：The system remarkable advantage is：(1) cross-platform compiling and operation, the system are based entirely on QT exploitations, energy
Enough accomplish primary development, run everywhere；(2) it is low to running environment performance requirement, by the verification experimental verification control Godson CPU,
Acceptance of the bid kylin operating system, run smooth up under dream data base's typical domestic hardware environment, no interim card and occupy a large amount of
Resource situation；(3) displaying and monitoring of Complicated Flow are supported, two kinds of flow process ways of presentation of AOE nets and AOV nets are supported；(4) adopt
Closed loop with connect inspection, it is ensured that flow chart build correctness and availability.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is done and is further illustrated, the present invention it is above-mentioned or
Otherwise advantage will become apparent.
Fig. 1 is system overall framework.
Fig. 2 is network system realization schematic diagram.
Fig. 3 is the class sequence chart that flow chart is generated.
Fig. 4 is simple mode typical process example.
Fig. 5 is complex patterns typical process example.
Fig. 6 is tieline schematic diagram.
Fig. 7 is parallel connection line schematic diagram.
Fig. 8 is bifurcated connecting line schematic diagram.
Specific embodiment
Technology contents to inventing are described in detail below in conjunction with the accompanying drawings：
The function logic of the system is divided as shown in figure 1, support QT functional modules, realize element figure layer, function
Support layer and the functional module using supporting layer, support the secondary development of all kinds of monitoring applications based on all kinds of interfaces.
QT layers are that the system needs the QT main functional modules that use, including QtCore (QT basic modules, including signal with
Groove communication, input and output, event, object handles, multithreading etc.), QtGui (graphical user interface module), GtXML (XML files
Module for reading and writing), QtSql (database access module), QtNetwork (cross-platform network module).
Element figure layer is the fundamental of flowchart, including connecting line and node.Connecting line is divided into and being directly connected to
Line, parallel connection line and bifurcated collect connecting line；Node point square (rectangle, square), circular two types.
Function supporting layer is parsed for the graphic structure of flow chart, display styles are arranged, network transmission is accessed, data base visits
Ask that storage, oriented topology check (connection, closed loop inspection), different grain size flow process handoff functionality.
The flow graph construction describing module for whole flow process figure is described by structured way, including stream
The description of journey figure overall information, branch's procedure information, nodal information and connecting line information, and format analysis are carried out to description, will
Information is placed in correspondence container；To make flow chart be evenly distributed, showing attractive in appearance, with reference to the layout device that QT X-Y schemes engine is provided
Function, according to flow chart general outline, pre-sets a matrix, what each node of flow chart was specified in respectively falling in matrix
The corresponding position of row, column, flow chart control make node pair automatically according to default line-spacing and row away from calculate node center
Together.
The flow monitoring application supporting layer is used for topological sorting, task scheduling, critical path and shortest path and calculates,
Hold construction network figure application.
Parent map metaclass includes two big class, is connecting line class and node class respectively.
1) connecting line class
1. tieline class (Ctrl_GraphicsLink)：Straight line, is directly connected to two pels, in purpose figure
Rhizoma Coptidis junction draws triangle arrow, as shown in Figure 6；
2. it is connected in parallel line class (Ctrl_GraphicsLinkParallel)：Exist between two pels a plurality of parallel
Connecting line, for drawing the indirect connection line parallel with tieline, as shown in Figure 7；
3. bifurcated connecting line class (Ctrl_GraphicsLinkBranch)：Multiple flow processs are split into from main flow, or from many
Individual flow process collect for main flow when, draw and branch line and collect line, as shown in Figure 8.
2) node class
1. circular pattern node class (Ctrl_GraphicsNodeCircle)
2. square graphical nodes class (Ctrl_GraphicsNodeRectangle) (including rectangle and square)
Fig. 4 is one fragment samples of typical process of simple mode, and flow chart should corresponding to the behavior that " specialty 4 " is located
The main flow of flow process, specialty 3 and professional 5 corresponding flow processs all be non-master flow process, node 1. with node 2. between pass through directly to connect
Wiring and parallel connection line are connected, and what " professional 3 ground installation self-inspection " connecting line was represented is the work that specialty 3 needs to complete
Dynamic, what " professional 4 ground installation self-inspection " connecting line was represented is the activity that specialty 4 needs to complete, and " professional 5 ground installation self-inspection " connects
What wiring was represented is the activity that specialty 5 needs to complete；" 1. " node represents " professional 3 ground installation self-inspection ", " professional 4 ground sets
Standby self-inspection ", " professional 5 ground installation self-inspection " start executed in parallel from the node；" 2. " node represents that each professional equipment self-inspection is equal
After end, the inside and outside that can carry out each specialty simultaneously parallel checks work.
One fragment samples of typical process of Fig. 5 for complex patterns, no main flow in flow chart, by straight between node
Wiring, parallel connection line and bifurcated connecting line are carried out in parallel or series in succession.(content in Fig. 4 and Fig. 5 is intended merely to this
Bright content is illustrated, and is not present invention object to be protected)
In Fig. 5, leftmost blank node represents that follow-up work proceeds by bifurcated executed in parallel from this node, divide into 5
Individual branch performs respectively；After in figure, the blank node of the rightmost side represents that 5 work carried out respectively terminate, behind blank node
Work can just carry out.
Illustrate by taking one section of flow process between middle " 1. " " 6. " " 9. " node as an example.It is " movable 1-6 (unit 2) ", " living
Activity representated by dynamic 6-9 (unit 3) ", " movable 1-9 (unit 4) " has been each responsible for by unit 2, unit 3, unit 4 respectively
Into；" 1. " after node indicates entry into branch's flow process, the activity that " movable 1-6 (unit 2) " and " movable 1-9 (unit 4) " represents
Can carry out simultaneously；" 6. " node represents, after the activity end that only " movable 1-6 (unit 2) " represents, " movable 6-9 (units
3) activity representated by " can just start to perform；" 9. " node is represented when " movable 6-9 (unit 3) " and " movable 1-9 (units
4) after the completion of the activity all representated by ", branch's flow process is just fully completed, and can enter rightmost side blank node in figure.
Flow graph constructionization is described：
Whole flow process figure is described by structured way, including flow chart overall information, branch's procedure information, is connected
Wiring information, nodal information, and format analysis are carried out to the description, information is placed in correspondence container.
(1) flow chart overall information
It is described using expandable mark language XML, flow chart overall information attribute includes：
1) flow process unique mark：Unique symbol for distinguishing flow process；
2) father's flow process unique mark：Father's flow process (top-level process) symbol of this flow process is distinguished uniquely, by the attribute reality
Now this flow process switches to father's flow process, i.e. different grain size flow process switching；
3) whether complex patterns：It is simple mode or complex patterns to distinguish flow chart, and simple mode flow chart is around work
Dynamic main line is drawn, and complex patterns do not have movable main line.
(2) branch's procedure information
Branch's flow process information attribute includes：
1) title：Branch's process name (can be regarded as activity or task)；
2) correspondence unit unique mark：Undertake unique differentiation symbol of the unit of the flow process or task；
3) whether main flow：Whether in simple mode flow chart, it is the flow process on movable main line to identify branch's flow process；
4) be expert at sequence number：The row sequence number that current branch flow process is located.
Branch's flow process set is formed by some branch's flow processs.
(3) nodal information
Nodal information attribute includes：
1) title：The title of present node；
2) node unique mark：Unique symbol for distinguishing node；
3) flow process unique mark：The unique mark of the flow chart belonging to present node；
4) correspondence unit unique mark：Unique differentiation symbol of the unit of current connecting line association
5) be expert at sequence number：The row sequence number that node is located；
6) column sequence number：The row sequence number that node is located；
7) node state：The progress of activity or task representated by present node, can be extended as needed；
8) with previous node distance：On a same row the distance between with previous node.
If forming node set by dry contact.
(4) connecting line information
Connecting line information attribute includes：
1) content description：Content representated by connecting line；
2) connecting line unique mark：Unique symbol for distinguishing connecting line；
3) connecting line type：Connecting line type is distinguished, 0 represents tieline, and 1 represents that parallel connection line, 2 represent bifurcated
Collect connecting line
4) whether top：When connecting line type is to be connected in parallel line, the parallel connection line for representing current is directly to connect
The top or lower section of wiring；
5) away from main flow distance：When connecting line type is to be connected in parallel line, current parallel connection line and centre are represented
The distance between tieline parallel lines；
6) whether collect：When connecting line type collects connecting line for bifurcated, indicate whether to collect connecting line
7) correspondence unit unique mark：Unique differentiation symbol of the unit of current connecting line association；
8) start node unique mark：The start node of current connecting line connection uniquely distinguishes symbol；
9) terminal node unique mark：The start node of current connecting line connection uniquely distinguishes symbol.
Connecting line set is formed by some connecting lines.
Function is supported：
To realize supporting application, flow monitoring function supporting module is implemented function such as：
(1) based on QT X-Y scheme engines, the setting of flowchart display styles, such as font color, size, lines
Color, thickness, flow chart background, flow chart pel gap size, background color etc.；
(2) network transmission function provided based on QtNetWork, can realize network transmission and message with remote terminal
Transmitting-receiving；
(3) access of database table and view is realized based on QtSql, realizes that data base reads and stores operation；
(4) based on the database access interface in QtXML or (2), the structure of flow chart is parsed, forms flow process
The contents such as the overall information of figure, branch's Process containers, node container, connecting line container；
(5) for (3) in all kinds of information of container, by the connection inspection of directed graph related algorithm flowchart and close
Ring is checked；
(6) believed by " the flow process unique mark " of " the father's flow process unique mark " information and specified nodal information of overall information
Breath can return back to top-level process figure and enter the corresponding refined flow chart of ingress, realize the scaling of flow process；
(7) user is provided and enters edlin maintenance function to flow chart, and preserve warehouse-in or form XML file.
Using support：
To support various integrated applications, flow monitoring application supporting module realizes function based on function supporting layer, with such as
Lower application is supported：
(1) for contents such as branch's Process containers, node container, connecting line containers, based on directed graph topological sorting method,
Topological sorting and the task scheduling function of flow process are provided；
(2) for application demand, based on the parameter information that connecting line or node give, can using graph key path and
Figure shortest path first externally provides the functional interface for solving critical path and shortest path；
(3) it is to meet the practical application similar to construction network figure, the parameter that control is given based on connecting line or node
Information, there is provided based on the earliest start time of AOE or AOV, late start time, can late time started, total time kept in reserve, freedom
The computing functions such as time kept in reserve；
(4) the application prompting function of various information is provided for above-mentioned application.
Process is realized mainly：
Entirely to build and its applying graph of a relation, upper right portion is pel graph of a relation to Fig. 2, and upper left is the information of pel
Graph of a relation, remainder are presented and how to build flow chart by pel, and the function of monitoring is realized by flow chart.Wherein
Expression succession,Expression polymerization,Represent and rely on, the figure mainly includes three parts：
(1) upper left side is primitive information relation, mainly includes nodal information class FlowChart_Node and connecting line information
Class FlowChart_Link, they are inherited from graphical information foundation class Ctrl_GraphicsInfoBase, for representing node class
The graphic display information included with connecting line class.
(2) upper right side be pel relation, be inherited from Qt figure base class, mainly comprising QObject (base class of all classes of QT),
QGraphicsLayoutItem (layout object base class in QT graphics view systems), QGraphicsItem (QT graphics view bodies
X-Y scheme base class in system), QGraphicLineItem (linear graph base class in QT graphics view systems), and which is expanded
Exhibition, mainly includes connecting line class Ctrl_GraphicsLink and node class Ctrl_GraphicsNodeBase.Connecting line is main
Derive bifurcated connecting line class Ctrl_GraphicsLinkBranch and parallel connection line class Ctrl_
GraphicsLinkParallel, node mainly derive rectangle class Ctrl_GraphicsNodeRectangle and circle class
Ctrl_GraphicsNodeCircle, different graphic can represent different types of information.Each pel contains related pel letter
Breath, its interior joint apoplexy due to endogenous wind is be expert at, relation between column and preposition node, connecting line apoplexy due to endogenous wind start node, terminal node,
The information such as connecting line type be used for draw a network, node apoplexy due to endogenous wind earliest start time, Late Start, can evening start when
Between, connecting line apoplexy due to endogenous wind total time kept in reserve, whether the information such as critical path be used for the time response for representing each node in network, section
Point apoplexy due to endogenous wind father and son's network information is used to represent network hierarchical relationship that user can also to inherit group on the basis of existing component
The node class and connecting line class of new attribute are born, the characteristics such as the pattern of display, color, the information for including such as are can customize, from
And the function of extension system.
(3) it is system application relation below.When flow chart is built, class CTM_ is parsed by flow chart
The primitive information that FlowChartParser is stored in parsing data base or XML configuration file, including between nodal information, node
Before and after continuous relation information and node other application information, in flow chart display window class CTM_FlowChartWidget
Connecting line, node are drawn, network is generated, and is passed through each pel of layout device layout.Connecting line and node in network can be
Monitored object, receives the status information that pel correspondence unit is reported, real-time update figure by monitoring class sjyh_ssjk_server
Unit and network chart state, can represent in real time and control task flow process in flow chart monitoring class Sjyh_Ssjk_Wlt, call core
Class of algorithms Sjyh_WltXg can real-time inspection network current state, carry out information alert, auxiliary user carries out decision-making and control,
Core algorithm includes connectivity checks, closed loop are checked and crucial or shortest path is calculated etc., and user can customize topological diagram
Parser, is lifted to applied analysis and aid decision ability.
It is illustrated in figure 3 the class sequence chart of flow chart establishment.
Flow chart display window class calls parsing class to carry out flow graph construction parsing, including node and connecting line information, institute
There is structural information to be put in the container of display window class, display window class carries out layout of flow chart according to the structural information of parsing,
Call graphical nodes class and figure connecting line class that flow chart node and connecting line are drawn on painting canvas simultaneously, and initialize each section
The attribute information of point and connecting line, after flowchart drawing is finished, calls connectivity checks algorithm, closed loop to check that algorithm etc. is carried out
The Correctness checking of flow chart.
Connecting line rendering algorithm between node：
Step 1：Two node class pel centers of connection, form a connecting line；
Step 2：The connecting line is carried out intersecting judgement with the frame of node class pel, connecting line and two nodes are calculated
The intersection point of class pel, wherein circular node directly obtain the joining of circle and straight line, and rectangle class node needs connecting line and divides
Do not carry out intersecting judgement with four edges；
Step 3：The connecting line of two intersection points is exactly the flowline for needing to draw.
The invention provides a kind of system for automatically generating cross-platform Complicated Flow figure based on QT, implements the technology
The method and approach of scheme is a lot, and the above is only the preferred embodiment of the present invention, it is noted that for the art
Those of ordinary skill for, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these change
Enter and retouch also to should be regarded as protection scope of the present invention.In the present embodiment, clearly each ingredient not can use prior art to add
To realize.
Claims (8)
1. a kind of system for automatically generating cross-platform Complicated Flow figure based on QT, it is characterised in that including flow chart parent map
First drafting module, flow graph construction describing module, flow monitoring function supporting module and flow monitoring application supporting module；
X-Y scheme in base class QObject and graphics view system that the flow chart element figure drafting module is provided from QT
Base class QGraphicsItem, linear figure base class QGraphicsLineItem, layout object base class
QGraphicsLayoutItem is inherited and is derived from, and forms the parent map metaclass of flow chart, and the parent map metaclass includes connecting
Wiring class and node class；
The flow graph construction describing module for whole flow process figure is described by structured way, including flow chart
The description of overall information, branch's procedure information, nodal information and connecting line information, and format analysis are carried out to description, by information
It is placed in correspondence container；
The flow monitoring function supporting module be used for the setting of flow chart display styles, network transmission, database access, connection and
Closed loop is checked, and the switching of different grain size flow process；
The flow monitoring application supporting module is used for topological sorting, task scheduling, critical path and shortest path and calculates, and
Support construction network figure application.
2. system according to claim 1, it is characterised in that the system is pre-set according to flow chart general outline
One matrix, the corresponding position of the row, column that each node of flow chart is specified in respectively falling in matrix, flow chart control automatically according to
Default line-spacing and row make node align away from calculate node center.
3. system according to claim 2, it is characterised in that the connecting line class includes tieline class, connects parallel
Wiring class and bifurcated connecting line class；
The tieline class is straight line, is directly connected to two pels, and draws triangle at purpose pel junction point
Shape arrow；
There is the parallel connection line of more than two in the parallel connection line class between two pels, for drawing and being directly connected to
The parallel indirect connection line of line；
The bifurcated connecting line class splits into two or more flow process from main flow, or collects for main flow from two or more flow process
When, draw branch line and collect line.
4. system according to claim 3, it is characterised in that the node class includes circular pattern node class and square chart
Shape node class, the square graphical nodes class include rectangular pattern node class and square-shaped patterns node class.
5. system according to claim 4, it is characterised in that described to flow chart overall information, branch's procedure information, section
Point information and the description of connecting line information include respectively：
Flow process unique mark：Unique symbol for distinguishing flow process；
Father's flow process unique mark：Father's flow process of this flow process, the i.e. symbol of top-level process are uniquely distinguished, this is realized by the attribute
Flow process switches to father's flow process；
Whether complex patterns：It is simple mode or complex patterns to distinguish flow chart, and simple mode flow chart is around movable main line
Drawn, complex patterns do not have movable main line；
Branch's flow process information attribute includes：
Title：Branch's process name；
Correspondence unit unique mark：Undertake unique differentiation symbol of the unit of the flow process or task；
Whether main flow：Whether in simple mode flow chart, it is the flow process on movable main line to identify branch's flow process；
Be expert at sequence number：The row sequence number that current branch flow process is located；
Nodal information attribute includes：
Title：The title of present node；
Node unique mark：Unique symbol for distinguishing node；
Flow process unique mark：The unique mark of the flow chart belonging to present node；
Correspondence unit unique mark：Unique differentiation symbol of the unit of current connecting line association
Be expert at sequence number：The row sequence number that node is located；
Column sequence number：The row sequence number that node is located；
Node state：The progress of activity or task representated by present node；
With previous node distance：On a same row the distance between with previous node；
Connecting line information attribute includes：
Content is described：Content representated by connecting line；
Connecting line unique mark：Unique symbol for distinguishing connecting line；
Connecting line type：Connecting line type is distinguished, 0 represents tieline, and 1 represents that parallel connection line, 2 expression bifurcateds collect company
Wiring；
Whether top：When connecting line type is to be connected in parallel line, the parallel connection line for representing current is in tieline
Top or lower section；
Away from main flow distance：When connecting line type is to be connected in parallel line, the parallel connection line for representing current is directly connected with centre
The distance between wiring parallel lines；
Whether collect：When connecting line type collects connecting line for bifurcated, indicate whether to collect connecting line
Correspondence unit unique mark：Unique differentiation symbol of the unit of current connecting line association；
Start node unique mark：The start node of current connecting line connection uniquely distinguishes symbol；
Terminal node unique mark：The start node of current connecting line connection uniquely distinguishes symbol.
6. system according to claim 5, it is characterised in that the flow monitoring function supporting module is aobvious for flow chart
Show that style setting, network transmission, database access, connection and closed loop inspection, the switching of different grain size flow process include：
Based on QT X-Y scheme engines, the setting of flowchart display styles, including font color, size, the color of lines,
Thickness, flow chart background, flow chart pel gap size, background color；
Based on cross-platform network module QtNetWork provide network transmission function, with remote terminal realize network transmission and
Information receiving and transmitting；
The access of database table and view is realized based on database access module QtSql, realizes that data base reads and stores operation；
It is based on the database access interface in XML file module for reading and writing QtXML or cross-platform network module QtNetWork, right
The structure of flow chart is parsed, and forms overall information, branch's Process containers, node container and the connecting line container of flow chart；
For all kinds of information of container, by the connection inspection and closed loop inspection of related algorithm flowchart；
Returned by the flow process unique identification information of father's flow process unique identification information and specified nodal information of flow chart overall information
Fall back on top-level process figure and enter the corresponding refined flow chart of ingress, realize the switching of different grain size flow process；
User is provided and enters edlin maintenance function to flow chart, and preserve warehouse-in or form XML file.
7. system according to claim 6, it is characterised in that the flow monitoring application supporting module is used for topology row
Sequence, task scheduling, key and shortest path are calculated, and support that construction network figure application includes：
For branch's Process containers, node container and connecting line container, based on directed graph topological sorting method, there is provided flow process is opened up
Flutter sequence and task scheduling function；
It is for application demand, based on the application parameter information that connecting line or node give, most short using graph key path and figure
Routing algorithm externally provides the functional interface for solving critical path and shortest path；
Based on the application parameter information that connecting line or node give, there is provided the earliest start time netted based on AOE nets or AOV,
Late start time, can late time started, total time kept in reserve and free time kept in reserve calculating and time alert feature.
8. system according to claim 7, it is characterised in that the system possesses structure elucidation, flow process and shows and flow
Range monitoring function, including：
Class is parsed by flow chart and parses the primitive information stored in data base or XML configuration file, including nodal information, node
Between before and after continuous relation information and node other application information；
Flow chart display window class parses information according to flow graph construction and draws each pel, and by each pel of layout device layout,
Build entire flow figure；
Monitoring programme class receives the status information that pel correspondence unit sends, real-time update pel and networking by port snoop class
Figure state, and call flow chart core algorithm automatically, analyze current operating state, point out user, and need to call according to user
Concrete function.
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