button.c

一个不错的POS系统

/*int get_str(WINDOW *textbox, char inputed_str[], int style, int num_limit, int input_limit)
NODE* link_get_node_by_key(C_CLASS LINKLIST* link,char* key,int (*condition)(void *p1,void *p2))
*/
int buttonCtl(WINDOW * winsure,WINDOW * cancle,int num,int ch)
{
	int flag=0;
		if(ch==KEY_DOWN||ch=='\t')
		{			
			flag=++flag%num;
			if(flag==0)
			{
				mvwprintw(wincancle,1,1," 退出 ");
				wrefresh(wincancle);
			}
			if(flag==num-1)
			{
				mvwprintw(winsure,1,1," 确定 ");
				wrefresh(winsure);	
			}
			return flag;
		}
		if(ch==KEY_UP)
		{			
			flag=abs(--flag)%num;
			if(flag==num-2)
			{
				mvwprintw(wincancle,1,1," 退出 ");
				wrefresh(wincancle);
			}
			if(flag==num-1)
			{
				mvwprintw(winsure,1,1," 确定 ");
				wrefresh(winsure);	
			}
			return flag;
		}
		if(ch==KEY_LEFT)
		{		
			if(flag==num-1)
			{
				flag=abs(--flag)%num;
				mvwprintw(wincancle,1,1," 退出 ");
				wrefresh(wincancle);
				return flag;
			}
		}
		if(ch==KEY_RIGHT)
		{		
			if(flag==num-2)
			{
				flag=++flag%num;
				mvwprintw(winsure,1,1," 确定 ");
				wrefresh(winsure);	
				return flag;
			}
		}
}






		if(ch==10||ch==KEY_ENTER)
		{
			if(flag!=num-2&&flag!=num-1)
			{
				flag=++flag%num;
				ChangWin(flag,winuser,winpassword,winsure,wincancle);
			}
			else if(flag==num-2)
			{					
				
				
			}
			else if(flag==num-1)
			{
				
			}
				
		}
		if(KEY_BACKSPACE==ch)
		{			
			if(flag==0)
			{
				int len=strlen(user);
				if(len>0)
				{
					user[len-1]='\0';					
					wprintw(winuser,"\b \b");
					ChangWin(flag,winuser,winpassword,winsure,wincancle);
				}
			}
			if(flag==1)
			{
				int len=strlen(password);
				if(len>0)
				{
					
					password[len-1]='\0';					
					wprintw(winpassword,"\b \b");
					ChangWin(flag,winuser,winpassword,winsure,wincancle);
				}
			}
		}
		if(isalnum(ch))
		{
			if(flag==0)
			{
				int len=strlen(user);
				if(len<input_limt)
				{
					user[len]=ch;
					wprintw(winuser,"%c",ch);
					ChangWin(flag,winuser,winpassword,winsure,wincancle);
				}
			}
			if(flag==1)
			{
				int len=strlen(password);
				if(len<13)
				{
					password[len]=ch;
					wprintw(winpassword,"*");
					ChangWin(flag,winuser,winpassword,winsure,wincancle);
				}
			}
		}
	}
}