libgtkd-3-dev 3.7.5-2build1 / usr / include / d / gtkd-3 / gdkpixbuf / PixbufAnimation.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


module gdkpixbuf.PixbufAnimation;

private import gdkpixbuf.Pixbuf;
private import gdkpixbuf.PixbufAnimationIter;
private import gdkpixbuf.c.functions;
public  import gdkpixbuf.c.types;
private import gio.AsyncResultIF;
private import gio.Cancellable;
private import gio.InputStream;
private import glib.ConstructionException;
private import glib.ErrorG;
private import glib.GException;
private import glib.Str;
private import glib.TimeVal;
private import gobject.ObjectG;
public  import gtkc.gdkpixbuftypes;


/**
 * An opaque struct representing an animation.
 */
public class PixbufAnimation : ObjectG
{
	/** the main Gtk struct */
	protected GdkPixbufAnimation* gdkPixbufAnimation;

	/** Get the main Gtk struct */
	public GdkPixbufAnimation* getPixbufAnimationStruct(bool transferOwnership = false)
	{
		if (transferOwnership)
			ownedRef = false;
		return gdkPixbufAnimation;
	}

	/** the main Gtk struct as a void* */
	protected override void* getStruct()
	{
		return cast(void*)gdkPixbufAnimation;
	}

	protected override void setStruct(GObject* obj)
	{
		gdkPixbufAnimation = cast(GdkPixbufAnimation*)obj;
		super.setStruct(obj);
	}

	/**
	 * Sets our main struct and passes it to the parent class.
	 */
	public this (GdkPixbufAnimation* gdkPixbufAnimation, bool ownedRef = false)
	{
		this.gdkPixbufAnimation = gdkPixbufAnimation;
		super(cast(GObject*)gdkPixbufAnimation, ownedRef);
	}


	/** */
	public static GType getType()
	{
		return gdk_pixbuf_animation_get_type();
	}

	/**
	 * Creates a new animation by loading it from a file. The file format is
	 * detected automatically. If the file's format does not support multi-frame
	 * images, then an animation with a single frame will be created. Possible errors
	 * are in the #GDK_PIXBUF_ERROR and #G_FILE_ERROR domains.
	 *
	 * Params:
	 *     filename = Name of file to load, in the GLib file name encoding
	 *
	 * Returns: A newly-created animation with a reference count of 1, or %NULL
	 *     if any of several error conditions ocurred:  the file could not be opened,
	 *     there was no loader for the file's format, there was not enough memory to
	 *     allocate the image buffer, or the image file contained invalid data.
	 *
	 * Throws: GException on failure.
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this(string filename)
	{
		GError* err = null;

		auto p = gdk_pixbuf_animation_new_from_file(Str.toStringz(filename), &err);

		if (err !is null)
		{
			throw new GException( new ErrorG(err) );
		}

		if(p is null)
		{
			throw new ConstructionException("null returned by new_from_file");
		}

		this(cast(GdkPixbufAnimation*) p, true);
	}

	/**
	 * Creates a new animation by loading it from an input stream.
	 *
	 * The file format is detected automatically. If %NULL is returned, then
	 * @error will be set. The @cancellable can be used to abort the operation
	 * from another thread. If the operation was cancelled, the error
	 * %G_IO_ERROR_CANCELLED will be returned. Other possible errors are in
	 * the #GDK_PIXBUF_ERROR and %G_IO_ERROR domains.
	 *
	 * The stream is not closed.
	 *
	 * Params:
	 *     stream = a #GInputStream to load the pixbuf from
	 *     cancellable = optional #GCancellable object, %NULL to ignore
	 *
	 * Returns: A newly-created pixbuf, or %NULL if any of several error
	 *     conditions occurred: the file could not be opened, the image format is
	 *     not supported, there was not enough memory to allocate the image buffer,
	 *     the stream contained invalid data, or the operation was cancelled.
	 *
	 * Since: 2.28
	 *
	 * Throws: GException on failure.
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this(InputStream stream, Cancellable cancellable)
	{
		GError* err = null;

		auto p = gdk_pixbuf_animation_new_from_stream((stream is null) ? null : stream.getInputStreamStruct(), (cancellable is null) ? null : cancellable.getCancellableStruct(), &err);

		if (err !is null)
		{
			throw new GException( new ErrorG(err) );
		}

		if(p is null)
		{
			throw new ConstructionException("null returned by new_from_stream");
		}

		this(cast(GdkPixbufAnimation*) p, true);
	}

	/**
	 * Finishes an asynchronous pixbuf animation creation operation started with
	 * gdk_pixbuf_animation_new_from_stream_async().
	 *
	 * Params:
	 *     asyncResult = a #GAsyncResult
	 *
	 * Returns: a #GdkPixbufAnimation or %NULL on error. Free the returned
	 *     object with g_object_unref().
	 *
	 * Since: 2.28
	 *
	 * Throws: GException on failure.
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this(AsyncResultIF asyncResult)
	{
		GError* err = null;

		auto p = gdk_pixbuf_animation_new_from_stream_finish((asyncResult is null) ? null : asyncResult.getAsyncResultStruct(), &err);

		if (err !is null)
		{
			throw new GException( new ErrorG(err) );
		}

		if(p is null)
		{
			throw new ConstructionException("null returned by new_from_stream_finish");
		}

		this(cast(GdkPixbufAnimation*) p, true);
	}

	/**
	 * Creates a new animation by asynchronously loading an image from an input stream.
	 *
	 * For more details see gdk_pixbuf_new_from_stream(), which is the synchronous
	 * version of this function.
	 *
	 * When the operation is finished, @callback will be called in the main thread.
	 * You can then call gdk_pixbuf_animation_new_from_stream_finish() to get the
	 * result of the operation.
	 *
	 * Params:
	 *     stream = a #GInputStream from which to load the animation
	 *     cancellable = optional #GCancellable object, %NULL to ignore
	 *     callback = a #GAsyncReadyCallback to call when the pixbuf is loaded
	 *     userData = the data to pass to the callback function
	 *
	 * Since: 2.28
	 */
	public static void newFromStreamAsync(InputStream stream, Cancellable cancellable, GAsyncReadyCallback callback, void* userData)
	{
		gdk_pixbuf_animation_new_from_stream_async((stream is null) ? null : stream.getInputStreamStruct(), (cancellable is null) ? null : cancellable.getCancellableStruct(), callback, userData);
	}

	/**
	 * Queries the height of the bounding box of a pixbuf animation.
	 *
	 * Returns: Height of the bounding box of the animation.
	 */
	public int getHeight()
	{
		return gdk_pixbuf_animation_get_height(gdkPixbufAnimation);
	}

	/**
	 * Get an iterator for displaying an animation. The iterator provides
	 * the frames that should be displayed at a given time. It should be
	 * freed after use with g_object_unref().
	 *
	 * @start_time would normally come from g_get_current_time(), and marks
	 * the beginning of animation playback. After creating an iterator, you
	 * should immediately display the pixbuf returned by
	 * gdk_pixbuf_animation_iter_get_pixbuf(). Then, you should install
	 * a timeout (with g_timeout_add()) or by some other mechanism ensure
	 * that you'll update the image after
	 * gdk_pixbuf_animation_iter_get_delay_time() milliseconds. Each time
	 * the image is updated, you should reinstall the timeout with the new,
	 * possibly-changed delay time.
	 *
	 * As a shortcut, if @start_time is %NULL, the result of
	 * g_get_current_time() will be used automatically.
	 *
	 * To update the image (i.e. possibly change the result of
	 * gdk_pixbuf_animation_iter_get_pixbuf() to a new frame of the animation),
	 * call gdk_pixbuf_animation_iter_advance().
	 *
	 * If you're using #GdkPixbufLoader, in addition to updating the image
	 * after the delay time, you should also update it whenever you
	 * receive the area_updated signal and
	 * gdk_pixbuf_animation_iter_on_currently_loading_frame() returns
	 * %TRUE. In this case, the frame currently being fed into the loader
	 * has received new data, so needs to be refreshed. The delay time for
	 * a frame may also be modified after an area_updated signal, for
	 * example if the delay time for a frame is encoded in the data after
	 * the frame itself. So your timeout should be reinstalled after any
	 * area_updated signal.
	 *
	 * A delay time of -1 is possible, indicating "infinite."
	 *
	 * Params:
	 *     startTime = time when the animation starts playing
	 *
	 * Returns: an iterator to move over the animation
	 */
	public PixbufAnimationIter getIter(TimeVal startTime)
	{
		auto p = gdk_pixbuf_animation_get_iter(gdkPixbufAnimation, (startTime is null) ? null : startTime.getTimeValStruct());

		if(p is null)
		{
			return null;
		}

		return ObjectG.getDObject!(PixbufAnimationIter)(cast(GdkPixbufAnimationIter*) p, true);
	}

	/**
	 * If an animation is really just a plain image (has only one frame),
	 * this function returns that image. If the animation is an animation,
	 * this function returns a reasonable thing to display as a static
	 * unanimated image, which might be the first frame, or something more
	 * sophisticated. If an animation hasn't loaded any frames yet, this
	 * function will return %NULL.
	 *
	 * Returns: unanimated image representing the animation
	 */
	public Pixbuf getStaticImage()
	{
		auto p = gdk_pixbuf_animation_get_static_image(gdkPixbufAnimation);

		if(p is null)
		{
			return null;
		}

		return ObjectG.getDObject!(Pixbuf)(cast(GdkPixbuf*) p);
	}

	/**
	 * Queries the width of the bounding box of a pixbuf animation.
	 *
	 * Returns: Width of the bounding box of the animation.
	 */
	public int getWidth()
	{
		return gdk_pixbuf_animation_get_width(gdkPixbufAnimation);
	}

	/**
	 * If you load a file with gdk_pixbuf_animation_new_from_file() and it
	 * turns out to be a plain, unanimated image, then this function will
	 * return %TRUE. Use gdk_pixbuf_animation_get_static_image() to retrieve
	 * the image.
	 *
	 * Returns: %TRUE if the "animation" was really just an image
	 */
	public bool isStaticImage()
	{
		return gdk_pixbuf_animation_is_static_image(gdkPixbufAnimation) != 0;
	}

	/**
	 * Adds a reference to an animation.
	 *
	 * Deprecated: Use g_object_ref().
	 *
	 * Returns: The same as the @animation argument.
	 */
	public override PixbufAnimation doref()
	{
		auto p = gdk_pixbuf_animation_ref(gdkPixbufAnimation);

		if(p is null)
		{
			return null;
		}

		return ObjectG.getDObject!(PixbufAnimation)(cast(GdkPixbufAnimation*) p);
	}

	/**
	 * Removes a reference from an animation.
	 *
	 * Deprecated: Use g_object_unref().
	 */
	public override void unref()
	{
		gdk_pixbuf_animation_unref(gdkPixbufAnimation);
	}
}