EekContainer

EekContainer — Base class of a keyboard container

Synopsis

void                (*EekCallback)                      (EekElement *element,
                                                         gpointer user_data);
gint                (*EekCompareFunc)                   (EekElement *element,
                                                         gpointer user_data);
                    EekContainer;
struct              EekContainerClass;
void                eek_container_add_child             (EekContainer *container,
                                                         EekElement *element);
EekElement *        eek_container_find                  (EekContainer *container,
                                                         EekCompareFunc func,
                                                         gpointer user_data);
void                eek_container_foreach_child         (EekContainer *container,
                                                         EekCallback callback,
                                                         gpointer user_data);

Object Hierarchy

  GObject
   +----EekElement
         +----EekContainer
               +----EekKeyboard
               +----EekSection

Signals

  "child-added"                                    : Run First
  "child-removed"                                  : Run First

Description

The EekContainerClass class represents a keyboard container, which shall be used to implement EekKeyboard and EekSection.

Details

EekCallback ()

void                (*EekCallback)                      (EekElement *element,
                                                         gpointer user_data);

The type of the callback function used for iterating over the children of a container, see eek_container_foreach_child().

element :

 an EekElement

user_data :

 user-supplied data

EekCompareFunc ()

gint                (*EekCompareFunc)                   (EekElement *element,
                                                         gpointer user_data);

EekContainer

typedef struct _EekContainer EekContainer;

struct EekContainerClass

struct EekContainerClass {
    void        (* foreach_child)  (EekContainer      *self,
                                    EekCallback        callback,
                                    gpointer           user_data);
    EekElement *(* find)           (EekContainer      *self,
                                    EekCompareFunc     func,
                                    gpointer           data);

    /* signals */
    void        (* child_added)    (EekContainer      *self,
                                    EekElement        *element);
    void        (* child_removed)  (EekContainer      *self,
                                    EekElement        *element);
};

foreach_child ()

 virtual function for iterating over the container's children

find ()

 virtual function for looking up a child

child_added ()

 class handler for "child-added"

child_removed ()

 class handler for "child-added"

eek_container_add_child ()

void                eek_container_add_child             (EekContainer *container,
                                                         EekElement *element);

eek_container_find ()

EekElement *        eek_container_find                  (EekContainer *container,
                                                         EekCompareFunc func,
                                                         gpointer user_data);

Find a child which matches the criteria supplied as func, in container.

container :

 an EekContainer

func :

 function to be used to compare two children

user_data :

 additional data passed to func

Returns :

 an EekElement or NULL on failure

eek_container_foreach_child ()

void                eek_container_foreach_child         (EekContainer *container,
                                                         EekCallback callback,
                                                         gpointer user_data);

Enumerate children of container and run callback with each child.

container :

 an EekContainer

callback :

 an EekCallback. [scope call]

user_data :

 additional data passed to callback

Signal Details

The "child-added" signal

void                user_function                      (EekContainer *container,
                                                        EekElement   *element,
                                                        gpointer      user_data)      : Run First

The ::child-added signal is emitted each time an element is added to container.

container :

 an EekContainer

element :

 an EekElement

user_data :

 user data set when the signal handler was connected.

The "child-removed" signal

void                user_function                      (EekContainer *container,
                                                        EekElement   *element,
                                                        gpointer      user_data)      : Run First

The ::child-removed signal is emitted each time an element is removed from container.

container :

 an EekContainer

element :

 an EekElement

user_data :

 user data set when the signal handler was connected.
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