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Task.h

cheryls28 Apr 20th, 2019 (edited) 74 in 146 days
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  1. #ifndef TASK_H
  2. #define TASK_H
  3. #include <iostream>
  4. using namespace std;
  5. class Task{
  6.     private:
  7.         // These three member variables store the basic information about a task
  8.     string title;
  9.     string location;
  10.         // This pointer will point to a dynamically-allocated array
  11.         // of THREE strings. Each element contains the name of a supply required for this task.
  12.         // This should start out set to NULL.
  13.     string * tags;
  14.         // This integer stores the number of elements in the tags array.
  15.     int numTags;
  16.         // This pointer specifies a "prereq" task, which is a task that
  17.         //  must be completed BEFORE this one.
  18.         // It should start out set to NULL.
  19.     Task * prereqTask;
  20.    
  21.    
  22.     public:
  23.         // Constructor: Initializes all instance variables.
  24.         // A newly-created task has no tags and no prereq task.
  25.     Task(string title, string location);
  26.         // Copy constructor: Initializes the current task as a copy of an existing task.
  27.         // - If the existing task has an array of tags, the current
  28.         //     task should end up with its own tags pointer pointing to
  29.         //     a complete copy (newly allocated) of the same array.
  30.     Task(const Task& otherTask);
  31.         // AddTags: Add a set of tags to the task.
  32.         // - You may assume the tagsToAdd array is already filled with string elements,
  33.         //     and the number of elements is given by the size parameter.
  34.         // - This method needs to:
  35.         //   1) PRINT AN ERROR (and do nothing else) if the task already has tags specified
  36.         //   2) Otherwise, allocate a new dynamically allocated array and set its
  37.         //        elements to be copies of the elements in tagsToAdd.
  38.     void AddTags(string tagsToAdd[], int size);
  39.         // AddPrereq: Set the prereq task of the current task.
  40.         // - You may assume otherTask is already set and points to a valid Task object.
  41.         // - This should PRINT AN ERROR if the task already has a prereq.
  42.         // - Otherwise, is must set the prereqTask pointer to point to the same Task object
  43.         //    that otherTask points to.
  44.     void AddPrereq(Task * otherTask);
  45.         // RemovePrereq: Remove the prereq for the current task.
  46.         // - PRINT AN ERROR (and do nothing else) if the current task doesn't have a prerequisite.
  47.         // - Otherwise, set this this task to no longer have a prerequisite.
  48.     void RemovePrereq();
  49.         // Description: Return a short description string for the current Task object.
  50.         // - Including its name, location, a list of tags (if there are any)
  51.         //      and the title of the prereq task (if there is one).
  52.     string Description() const;
  53.         // HasTag: Check if the task has theTag among its set of tags.
  54.         // - If the task has no tags at all, you can return false immediately.
  55.     bool HasTag(string theTag) const;
  56.         // Destructor
  57.         // - This needs to deallocate anything that will no longer be used now that
  58.         //     the current object itself is going away.
  59.         // - Think carefully!! Which things need to be deallocated?
  60.     ~Task();
  61.  
  62.     friend class TaskList; // Task methods will be accessible to TaskList
  63. };
  64. #endif // TASK_H
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