main_dlg.cpp

Apriori算法源码（C++） 看了以前在这里发的apriori源码

#include "stdafx.h"
// main_dlg.cpp

// note: for v1.6.3+, you should try to use the Resource Splitter
// comment this line, and uncomment the following one
#include "resource.h"
#include "main_dlg.h"
#include "para_empl.h"
#include "time.h"

using namespace win32::gui;


struct main_dlg_handler : event_handler<main_dlg_handler, main_dlg> {

	handle_event on_calc() {
		
		if(window()->item_num < 0)
		{
			msg_box( window(), "请先进行参数设置！" );

		}
		else{
			//初始化算法参数
			item_num = window()->get_item_num();
			item_supp = window()->get_item_supp();

			

			// 计算频繁项集
			CAprioriSet* m_pSet = new CAprioriSet(item_num, item_supp);

			start = clock();
			item_set = m_pSet->getFreqItem();
			
			stop = clock();
			
			delete m_pSet;

			window()->show_item(item_set);
			
			time_used = ( stop - start )<<10/CLK_TCK;
			msg_box ( window(), "耗时" + boost::lexical_cast<string>(time_used) + "毫秒，计算成功！" );
		}		
		
		return command<ID_file_calc>().HANDLED_BY(&me::on_calc);
	}

	handle_event on_option() {
		//parameter para;
		item_num = 10;
		item_supp = 0.2;
		//para_empl pl( para );
		create_modal_save_dlg ( ID_option, //<bolded_save_dlg>( ID_option, pl, null_wnd );
			save_dlg::corresp()
			.add_corresp( &item_num, ID_item_num )
			.add_corresp( &item_supp, ID_item_supp),
			null_wnd );

		window()->item_num	= item_num;
		window()->item_supp	= item_supp;
		return command<ID_file_option>().HANDLED_BY(&me::on_option);
	}

	handle_event on_about() {
		create_modal_dlg<dialog> ( window(), create_info().id(IDD_ABOUTBOX) ).wait();
		return command<IDM_ABOUT>().HANDLED_BY(&me::on_about);
	}

	handle_event on_exit() {
		PostQuitMessage(0);
		return command<IDM_EXIT>().HANDLED_BY(&me::on_exit);
	}
private:
	clock_t start, stop;
	double time_used;
	int item_num;
	double item_supp;
	vector<ItemType> item_set;

};


main_dlg::main_dlg() {

	item_num = -1;
	item_supp = 0.2;

	add_resizable_ctrl( ID_list_data, size_x | size_y );

	
	child<list_ctrl>( ID_list_data)->add_col( lv_col().text("Item").width(100) );
	child<list_ctrl>( ID_list_data)->add_col( lv_col().text("Count").width(100) );
}

main_dlg::~main_dlg() {
}

void main_dlg::show_item( vector<ItemType>& itemSet ) {
	int idx = 0;
	wnd<list_ctrl> aprioriItem = child<list_ctrl>(ID_list_data);

	aprioriItem->del_all_items();

	for( vector<ItemType>::iterator it = itemSet.begin(); it != itemSet.end(); it++)
	{
		//分隔不同级的频繁项集
		if( it == itemSet.begin() || get<0>(*(it-1)) != get<0>(*it) )
		{
			aprioriItem->add_item( lv_item() );
			aprioriItem->item( idx, 0, lv_item().text( "----------" ) );
			aprioriItem->item( idx, 1, lv_item().text( "----------" ) );
			++idx;
		}
		aprioriItem->add_item( lv_item() );
		aprioriItem->item( idx, 0, lv_item().text( get<1>( *it ) ) );
		aprioriItem->item( idx, 1, lv_item().text( boost::lexical_cast<string>( get<2>( *it ) ) ) );
		++idx;
	}
}

// note: for v1.6.3+, you should try to use the Resource Splitter
// comment this line, and uncomment the following one
int main_dlg::dialog_id() { return IDD_MAIN; }
// int main_dlg::dialog_id() { return dialog_id_; }