CGraph/example/E02-MockGUI.cpp at main · feiyunwill/CGraph · GitHub

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/***************************

@Author: Chunel

@Contact: chunel@foxmail.com

@File: E02-MockGUI.cpp

@Time: 2023/9/16 21:22

@Desc: 本example主要展示，在不修改之前任何功能（node中的逻辑）的情况下，

通过aspect和event功能，在界面上展示当前正在执行的node，

模拟 GUI 中node的变亮（或者变暗）的操作。

***************************/

#include <iostream>

#include <cmath>

#include <set>

#include "CGraph.h"

using namespace CGraph;

const static char* EXAMPLE_PARAM_KEY = "example-param-key";

const static char* EXAMPLE_EVENT_KEY = "example-event-key";

struct ProcessGParam : public GParam {

CVoid change(const std::string& name, bool isBegin) {

if (isBegin) {

running_elements_.insert(name);

} else {

running_elements_.erase(name);

}

CVoid print() {

std::cout << "<";

for (const auto& cur : running_elements_) {

std::cout << " " << cur << " ";

}

std::cout << "> is running..." << std::endl;

}

protected:

std::set<std::string> running_elements_;

};

class ShowGEvent : public GEvent {

CVoid trigger(GEventParamPtr param) override {

auto p = CGRAPH_GET_GPARAM_WITH_NO_EMPTY(ProcessGParam, EXAMPLE_PARAM_KEY);

CGRAPH_PARAM_READ_CODE_BLOCK(p);

p->print();

}

};

class SwitchGAspect : public GAspect {

public:

CStatus beginRun() override {

auto p = CGRAPH_GET_GPARAM_WITH_NO_EMPTY(ProcessGParam, EXAMPLE_PARAM_KEY);

{

CGRAPH_PARAM_WRITE_CODE_BLOCK(p)

p->change(this->getName(), true);

}

notify(EXAMPLE_EVENT_KEY, GEventType::SYNC);

return CStatus();

}

CVoid finishRun(const CStatus& curStatus) override {

auto p = CGRAPH_GET_GPARAM_WITH_NO_EMPTY(ProcessGParam, EXAMPLE_PARAM_KEY);

{

CGRAPH_PARAM_WRITE_CODE_BLOCK(p)

p->change(this->getName(), false);

}

notify(EXAMPLE_EVENT_KEY, GEventType::SYNC);

}

};

class ActionGNode : public GNode {

CStatus run() override {

int ms = std::abs((int)std::random_device{}()) % 4000 + 1000;

CGRAPH_SLEEP_MILLISECOND(ms); // 一个算子，随机休息一段时间，时长 1000~5000 ms

return CStatus();

}

};

void example_mock_gui() {

GElementPtr a, b, c, d, e, f, g = nullptr;

auto pipeline = GPipelineFactory::create();

pipeline->registerGElement<ActionGNode>(&a, {}, "nodeA");

pipeline->registerGElement<ActionGNode>(&b, {a}, "nodeB");

pipeline->registerGElement<ActionGNode>(&c, {a}, "nodeC");

pipeline->registerGElement<ActionGNode>(&d, {b}, "nodeD");

pipeline->registerGElement<ActionGNode>(&e, {b, c}, "nodeE");

pipeline->registerGElement<ActionGNode>(&f, {d, e}, "nodeF");

pipeline->registerGElement<ActionGNode>(&g, {e}, "nodeG");

pipeline->createGParam<ProcessGParam>(EXAMPLE_PARAM_KEY);

pipeline->addGEvent<ShowGEvent>(EXAMPLE_EVENT_KEY);

pipeline->addGAspect<SwitchGAspect>(); // 在每个node，开始和结束的时候，去触发 EXAMPLE_EVENT_KEY 事件，显示当前正在running的node信息

pipeline->process();

GPipelineFactory::clear();

}

int main() {

example_mock_gui();

return 0;

}

CGraph/example/E02-MockGUI.cpp at main · feiyunwill/CGraph · GitHub

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