help to use checkbox

[TORRES]

hi, im new in this page, i need some help i learning about class , so im triyinhg to do a checkbox but doesn't works .
or some one have a good class checkbox please


#ifndef __CHECKBOX_H
#define __CHECKBOX_H

#ifndef __TEXTBOX_H
#include "C:\BC5\INCLUDE\textbox.h"
#endif

#ifndef __STRING_H
#include "string"
#endif

#ifndef __CONIO_H
#include <conio.h>
#endif

#ifndef __STDIO_H
#include <stdio.h>
#endif



#ifndef __KEYS_H
#include "D:\lib\keys.h"
#endif

class checkbox : public textbox
{
public:
checkbox(std::string checkboxname); //constructor for checkbox, takes a name
virtual ~checkbox();
virtual void show(int,int); //print on screen
virtual void focus();
void checked(bool mark); //will mark as checked or not
bool checked(); //returns checked_; 1 = checked, 0 = !checked
std::string name(); //returns name_; the checkbox name
void next (checkbox *next_); //gives next a value
void back (checkbox *back_); //gives back a value
virtual checkbox *next(); //returns next checkbox in list
virtual checkbox *back(); //returns previous checkbox in list
private:
checkbox *next__; //stores next checkbox
checkbox *back__; //stores previous checkbox

protected:
bool checked_; //variable for checked()
};

class list_checkbox
{
public:
list_checkbox(); //constructor takes no parameters
~list_checkbox();
virtual void add(std::string name); //this will add a new checkbox to the list_checkbox
int count(); //will count how many checkboxes in the list_checkbox
virtual checkbox *last(); //will return the last checkbox object in the list_checkbox
virtual void show(int x, int y, bool dir); //used to display the checkbox options
virtual void focus(); //will move to desired checkbox
virtual void result(int x, int y); //will print checked items
virtual void box(int x, int y); //prints border around items
virtual int maxwidth();
virtual checkbox *head();

private:
checkbox *ini; //initial node in the list

protected:
int count_; //used to store the number of checkboxes in the list_checkbox

};

//checkbox object constructor

checkbox::checkbox(std::string checkboxname)
:textbox(1)
{
checked_ = 0;
name_ = checkboxname;
next__ = NULL;
back__ = NULL;
}

//checkbox object destructor

checkbox::~checkbox()
{
}

//method returns next item in the list
checkbox *checkbox::next()
{
return next__;
}

//method returns previous item in the list
checkbox *checkbox::back()
{
return back__;
}

//gives next the value inserted
void checkbox::next(checkbox * next_)
{
next__=next_;
}

//gives back the value inserted
void checkbox::back(checkbox *back_)
{
back__=back_;
}

//method used to print the checkbox in the console

void checkbox::show(int x1, int y1)
{
int xmax = 80 - SHOWLEN -this->name().size(); //there are usually only 80 characters available to print on the screen, needs to take into account the name length and closing bracket "]"
if(x1>=1 && x1 <=xmax) //if x coordinate is within boundaries, assign it to x
{
x=x1;
}
else //else assign its max
{
if(x1<1) x=1;
if(x1 > xmax) x=xmax;
}

if(y1 >=1 && y1 <=25) //there are usually only 25 characters in the y direction
{
y=y1; ///if input y is within the boundary then assign it to the y coordinate
}
else //else assign its max coordinate or its min
{
if(y1 <1) y=1;
if(y1>25) y=25;
}

gotoxy(x,y); //used to move cursor to desired lovation
cprintf("["); //intiial bracket
for(int i=0; i<width_; i++)
{
cprintf(" ");
}
cprintf("]"); //closing bracket
gotoxy(x+5,y);
printf(name().c_str()); //print checkbox name
gotoxy(x+1,y); //move cursor to selection "[ ]"
}

//method used to move cursor to selection "[ ]"

void checkbox::focus()
{
gotoxy(x+1,y);
}

//return if the checkbox has been checked or not

bool checkbox::checked()
{
return checked_;
}

//method used to check or not the checkbox

void checkbox::checked(bool mark)
{
checked_=mark;
}

//return the checkbox name

std::string checkbox::name()
{
return name_;
}

//list_checkbox constructor

list_checkbox::list_checkbox()
{
count_ = 0;
ini = NULL;
}

//list_checkbox destructor

list_checkbox::~list_checkbox()
{
checkbox *current = this ->ini;

while(current)
{
checkbox *next = current->next();
delete current;
current = next;
}
}

//return the number of items in the list_checkbox

int list_checkbox::count()
{
return count_;
}

//return the last checkbox in the list_checkbox

checkbox *list_checkbox::last()
{
checkbox *end = this->ini;

while(end->next() !=NULL)
{
end = end->next();
}

return end;
}

//add new checkbox to the list_checkbox

void list_checkbox::add(std::string name)
{
checkbox *newcheckbox = new checkbox(name);

if(count_ == 0)
{
this->ini=newcheckbox;
count_++;
}
else
{
newcheckbox->back(this->last());
this->last()->next(newcheckbox);
count_++;
}

}

//print the checkboxes into the screen

void list_checkbox::show(int x, int y, bool dir)
{
checkbox *temp = this->ini;
if(dir == VER)
{
for(int i=0;temp;i++)
{
temp->show(x,y+i);
temp=temp->next();
}
}
else
{
for(int i=0; temp ; i++)
{
if(i==0)
{
temp->show(x,y);
x += temp->name().size() + SHOWLEN;
}
else
{
temp->show(x, y);
x+=temp->name().size() + SHOWLEN;
}
temp=temp->next();
}

}
}

//move cursor to each checkbox

void list_checkbox::focus()
{
int key;
checkbox* temp = this->ini;
temp->focus();
do
{
key=getkey();
if(key == UP)
{
if(temp->back()) temp=temp->back();
temp->focus();
}

if(key == DOWN)
{
if(temp->next()) temp=temp->next();
temp->focus();
}


if(key == ENT )
{
if(temp->checked()==0)
{
temp->checked(1);
cprintf("X");
temp->focus();
}
}

if(key == BCK)
{
if(temp->checked()==1)
{
temp->checked(0);
cprintf(" ");
temp->focus();
}
}



}while(key!=ESC);

}

//prints the checked items

void list_checkbox::result(int x, int y)
{
checkbox *temp = this->ini;

int xmax = 80 - temp->name().size(); //there are usually only 80 characters available to print on the screen, needs to take into account the name length

if(x<1) x=1;
if(x > xmax) x=xmax;

if(y<1 || y>25) //if outside boundaries, assign its max coordinate or its min
{
if(y <1) y=1;
if(y >25) y=25;
}


while(temp && y<25 && x<xmax) //print the selected items
{
gotoxy(x,y);

if(temp->checked())
{
cprintf(temp->name().c_str());
}

temp=temp->next();
y++;
}
}

//prints border around items

void list_checkbox::box(int x, int y)
{
checkbox *temp = this->ini;
int maxlen=0;
gotoxy(x,y);

cprintf("%c",C1);

for(int i=0; i< maxwidth() + SHOWLEN +1; i++)
{
cprintf ("%c",HLINE);
}

cprintf("%c",C2);

for(int i=0;i<this->count();i++)
{
gotoxy(x,y+1+i);
cprintf("%c",VLINE);
for(int i=0; i < maxwidth() +SHOWLEN+1;i++)
{
cprintf(" ");
}
cprintf("%c",VLINE);
}

gotoxy(x,y+this->count()+1);

cprintf("%c",C3);

for(int i=0;i<maxwidth() +SHOWLEN+1;i++)
{
cprintf("%c",HLINE);
}

cprintf ("%c",C4);
this->show(x+2,y+1,0);
}

int list_checkbox::maxwidth()
{
int width = 0;
checkbox *temp = this->ini;
while(temp)
{
if(temp->name().size() > width)
{
width = temp->name().size();
}
temp = temp->next();
}

return width;
}

checkbox *list_checkbox::head()
{
return ini;
}

#endif

[jonnin]

Welcome! what does not work?

(this isnt a checkbox, which is little more than a graphical representation of a boolean variable, but that is just common terminology).

you seem to want a checkbox that also has some data, and then you want to make a list or vector or something of those.

you need to get the checkbox working for just 1 of them, and we can do the list after that.

when posting code, please use the formatting tool <> box or [code| tags esp if the code is nontrivial large examples.