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#ifndef UPEM_MORPHING_GROUP
#define UPEM_MORPHING_GROUP
/**
* File: group.h
* Group of components
*/
#include "component.h"
/**
* Struct: _GroupElement
* Node of the linked list that is involved in the Group behavior
*
* Parameters:
* *component - component
* *sub_component - sub component
* *next - link to the next node
*/
typedef struct _GroupElement {
Component *sub_component;
struct _GroupElement *next;
} GroupElement;
/**
* Struct: Group
* Group representation
*
* Parameters:
* component - Component used for the Group to catch clicks and handle print to delegate to the components contented in it
* *group_head - pointer to the head of the list that regroup all the components contained inside of the group
* margin - margin for all components
*/
typedef struct {
Component component;
GroupElement *group_head;
int margin;
} Group;
/**
* Function: group_print
* Print method for a group that will print all components contained in.
*
* Parameters:
* *parameterSelf - pointer that will be casted into a Group to print
*/
void group_print(Component *parameterSelf);
/**
* Function: group_click_handler
* Delegates the click handling to the component contained inside.
*
* Parameters:
* x_pos - position of the mouse on x axis
* y_pos - position of the mouse on y axis
* *parameterSelf - pointer that will be casted into a Group to print
*/
void group_click_handler(int x_pos, int y_pos, Component *parameterSelf);
/**
* Function: group_init
* Initializes fields of a Group that must be allocated before.
*
* Parameters:
* *group - group that must be initialized
* width - width of the current group
* height - height of the current group
* x_pos - position on the x axis from the upper left corner
* y_pos - position on the y axis from the upper left corner
* margin - space between each components
*/
void group_init(Group *group, int width, int height, int x_pos, int y_pos, int margin);
/**
* Function: group_free
* Frees the resources held by the group like the linked list.
*
* Parameters:
* *group - group that must be freed
*/
void group_free(Group *group);
/**
* Function: group_add_component
* Adds the component at the end of the chained list held by group_head.
*
* Parameters:
* *group - group in which we add the component
* *component - component which is added to the group
*/
void group_add_component(Group *group, Component *component);
#endif
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