root/trunk/src/gio/InitableT.d

/*
 * This file is part of gtkD.
 *
 * gtkD is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version, with
 * some exceptions, please read the COPYING file.
 *
 * gtkD is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with gtkD; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 */
 
// generated automatically - do not change
// find conversion definition on APILookup.txt
// implement new conversion functionalities on the wrap.utils pakage

/*
 * Conversion parameters:
 * inFile  = GInitable.html
 * outPack = gio
 * outFile = InitableT
 * strct   = GInitable
 * realStrct=
 * ctorStrct=
 * clss    = InitableT
 * interf  = InitableIF
 * class Code: No
 * interface Code: No
 * template for:
 *  - TStruct
 * extend  = 
 * implements:
 * prefixes:
 *  - g_initable_
 * omit structs:
 * omit prefixes:
 * omit code:
 * omit signals:
 * imports:
 *  - glib.Str
 *  - glib.ErrorG
 *  - glib.GException
 *  - gobject.ObjectG
 *  - gio.Cancellable
 * structWrap:
 *  - GCancellable* -> Cancellable
 *  - GObject* -> ObjectG
 * module aliases:
 * local aliases:
 * overrides:
 */

module gio.InitableT;

public  import gtkc.giotypes;

public import gtkc.gio;
public import glib.ConstructionException;


public import glib.Str;
public import glib.ErrorG;
public import glib.GException;
public import gobject.ObjectG;
public import gio.Cancellable;




/**
 * Description
 * GInitable is implemented by objects that can fail during
 * initialization. If an object implements this interface the
 * g_initable_init() function must be called as the first thing
 * after construction. If g_initable_init() is not called, or if
 * it returns an error, all further operations on the object
 * should fail, generally with a G_IO_ERROR_NOT_INITIALIZED error.
 * Users of objects implementing this are not intended to use
 * the interface method directly, instead it will be used automatically
 * in various ways. For C applications you generally just call
 * g_initable_new() directly, or indirectly via a foo_thing_new() wrapper.
 * This will call g_initable_init() under the cover, returning NULL and
 * setting a GError on failure (at which point the instance is
 * unreferenced).
 * For bindings in languages where the native constructor supports
 * exceptions the binding could check for objects implemention GInitable
 * during normal construction and automatically initialize them, throwing
 * an exception on failure.
 */
public template InitableT(TStruct)
{
    
    /** the main Gtk struct */
    protected GInitable* gInitable;
    
    
    public GInitable* getInitableTStruct()
    {
        return cast(GInitable*)getStruct();
    }
    
    
    /**
     */
    
    /**
     * Initializes the object implementing the interface. This must be
     * done before any real use of the object after initial construction.
     * Implementations may also support cancellation. If cancellable is not NULL,
     * then initialization can be cancelled by triggering the cancellable object
     * from another thread. If the operation was cancelled, the error
     * G_IO_ERROR_CANCELLED will be returned. If cancellable is not NULL and
     * the object doesn't support cancellable initialization the error
     * G_IO_ERROR_NOT_SUPPORTED will be returned.
     * If this function is not called, or returns with an error then all
     * operations on the object should fail, generally returning the
     * error G_IO_ERROR_NOT_INITIALIZED.
     * Implementations of this method must be idempotent, i.e. multiple calls
     * to this function with the same argument should return the same results.
     * Only the first call initializes the object, further calls return the result
     * of the first call. This is so that its safe to implement the singleton
     * pattern in the GObject constructor function.
     * Since 2.22
     * Params:
     * cancellable = optional GCancellable object, NULL to ignore.
     * Returns: TRUE if successful. If an error has occurred, this function will return FALSE and set error appropriately if present.
     * Throws: GException on failure.
     */
    public int init(Cancellable cancellable)
    {
        // gboolean g_initable_init (GInitable *initable,  GCancellable *cancellable,  GError **error);
        GError* err = null;
        
        auto p = g_initable_init(getInitableTStruct(), (cancellable is null) ? null : cancellable.getCancellableStruct(), &err);
        
        if (err !is null)
        {
            throw new GException( new ErrorG(err) );
        }
        
        return p;
    }
    
    /**
     * Helper function for constructing GInitiable object. This is
     * similar to g_object_new_valist() but also initializes the object
     * and returns NULL, setting an error on failure.
     * Since 2.22
     * Params:
     * objectType = a GType supporting GInitable.
     * firstPropertyName = the name of the first property, followed by
     * the value, and other property value pairs, and ended by NULL.
     * varArgs = The var args list generated from first_property_name.
     * cancellable = optional GCancellable object, NULL to ignore.
     * Returns: a newly allocated GObject, or NULL on error. [transfer full]
     * Throws: GException on failure.
     */
    public static ObjectG newValist(GType objectType, string firstPropertyName, void* varArgs, Cancellable cancellable)
    {
        // GObject * g_initable_new_valist (GType object_type,  const gchar *first_property_name,  va_list var_args,  GCancellable *cancellable,  GError **error);
        GError* err = null;
        
        auto p = g_initable_new_valist(objectType, Str.toStringz(firstPropertyName), varArgs, (cancellable is null) ? null : cancellable.getCancellableStruct(), &err);
        
        if (err !is null)
        {
            throw new GException( new ErrorG(err) );
        }
        
        if(p is null)
        {
            return null;
        }
        return new ObjectG(cast(GObject*) p);
    }
    
    /**
     * Helper function for constructing GInitiable object. This is
     * similar to g_object_newv() but also initializes the object
     * and returns NULL, setting an error on failure.
     * Since 2.22
     * Params:
     * objectType = a GType supporting GInitable.
     * parameters = the parameters to use to construct the object
     * cancellable = optional GCancellable object, NULL to ignore.
     * Returns: a newly allocated GObject, or NULL on error. [transfer full]
     * Throws: GException on failure.
     */
    public static void* newv(GType objectType, GParameter[] parameters, Cancellable cancellable)
    {
        // gpointer g_initable_newv (GType object_type,  guint n_parameters,  GParameter *parameters,  GCancellable *cancellable,  GError **error);
        GError* err = null;
        
        auto p = g_initable_newv(objectType, cast(int) parameters.length, parameters.ptr, (cancellable is null) ? null : cancellable.getCancellableStruct(), &err);
        
        if (err !is null)
        {
            throw new GException( new ErrorG(err) );
        }
        
        return p;
    }
}