?? diagram.cpp
字號:
#include "StdAfx.h"
#include "Diagram.h"
Diagram::Diagram()
{
count=0;
this->firstElement=NULL;
this->selected=NULL;
}
void Diagram::removeElement(Element *a)
{
count--;
Element* first=this->firstElement;
if(first==a)
{
firstElement=first->nextelement;
return;
}
while(first->nextelement!=NULL)
{
if(first->nextelement==a)
{
first->nextelement=a->nextelement;
return;
}
first=first->nextelement;
}
}
void Diagram::addElement(Element* a)
{
count++;
Element* first=this->firstElement;
if(first==NULL)
{
firstElement=a;
return;
}
while(first->nextelement!=NULL)
{
first=first->nextelement;
}
first->nextelement=a;
}
void Diagram::paint(CDC& g)
{
Element *first=this->firstElement;
while(first!=NULL)
{
first->paint(g);
first=first->nextelement;
}
}
int Diagram::have(CString name)
{
int x=0;
Element *first=this->firstElement;
while(first!=NULL)
{
if(first->name==name)
{
x=1;
break;
}
first=first->nextelement;
}
return x;
}
Element* Diagram::father(CString name,int x)
{
Element* father=NULL;
Element *first=this->firstElement;
while(first!=NULL)
{
if(x==1)
{
if(first->name==name&&(first->type==1||first->type==2))
{
father=first;
break;
}
}
else if(x==2)
{
if(first->name==name&&(first->type==1))
{
father=first;
break;
}
}
first=first->nextelement;
}
return father;
}
void Diagram::Delete()
{
Element *first=this->firstElement;
if(first==NULL)
{
return;
}
while(first->nextelement!=NULL)
{
Element* e=first->nextelement;
this->removeElement(e);
delete(e);
}
firstElement=NULL;
}
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