Gtk.Custom_Filter.Custom_Filter_User_Data

Description

Destroy

procedure Destroy (Data : in out User_Data_Type)

Parameters

Data

Gtk_Custom_Filter_Func_User

type Gtk_Custom_Filter_Func_User is access function
  (Item      : Glib.Object.GObject;
   User_Data : User_Data_Type) return Boolean;

User function that is called to determine if the Item should be matched. If the filter matches the item, this function must return true. If the item should be filtered out, false must be returned.

Parameters

Item

the item to be matched

User_Data

user data

Return Value

true to keep the item around

Gtk_Custom_Filter_New_User

function Gtk_Custom_Filter_New_User
  (Match_Func : Gtk_Custom_Filter_Func_User;
   User_Data  : User_Data_Type)
return Gtk_Custom_Filter

Creates a new filter using the given function to filter items. If Match_Func is NULL, the filter matches all items. If the filter func changes its filtering behavior, [methodGtk.Filter.changed] needs to be called.

Parameters

Match_Func

function to filter items

User_Data

Return Value

Gtk_New_User

procedure Gtk_New_User
  (Self       : out Gtk_Custom_Filter;
   Match_Func : Gtk_Custom_Filter_Func_User;
   User_Data  : User_Data_Type)

Creates a new filter using the given function to filter items. If Match_Func is NULL, the filter matches all items. If the filter func changes its filtering behavior, [methodGtk.Filter.changed] needs to be called. Initialize does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

Match_Func

function to filter items

User_Data

user data to pass to Match_Func

Initialize_User

procedure Initialize_User
  (Self       : not null access Gtk_Custom_Filter_Record'Class;
   Match_Func : Gtk_Custom_Filter_Func_User;
   User_Data  : User_Data_Type)

Creates a new filter using the given function to filter items. If Match_Func is NULL, the filter matches all items. If the filter func changes its filtering behavior, [methodGtk.Filter.changed] needs to be called. Initialize does nothing if the object was already created with another call to Initialize* or G_New.

Parameters

Self

Match_Func

function to filter items

User_Data

user data to pass to Match_Func

Set_Filter_Func_User

procedure Set_Filter_Func_User
  (Self       : not null access Gtk.Custom_Filter.Gtk_Custom_Filter_Record'Class;
   Match_Func : Gtk_Custom_Filter_Func_User;
   User_Data  : User_Data_Type)

Sets the function used for filtering items. If Match_Func is NULL, the filter matches all items. If the filter func changes its filtering behavior, [methodGtk.Filter.changed] needs to be called. If a previous function was set, its User_Destroy will be called.

Parameters

Self

Match_Func

function to filter items

User_Data

user data to pass to Match_Func

User_Data_Type

type User_Data_Type (<>) is private;