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E02-MockGUI.cpp
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111 lines (88 loc) · 3.22 KB
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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;
}