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/*
* Purple - Internet Messaging Library
* Copyright (C) Pidgin Developers <devel@pidgin.im>
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#if !defined(PURPLE_GLOBAL_HEADER_INSIDE) && !defined(PURPLE_COMPILATION)
# error "only <purple.h> may be included directly"
#endif
#ifndef PURPLE_GDK_PIXBUF_H
#define PURPLE_GDK_PIXBUF_H
#include <glib.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <libpurple/image.h>
G_BEGIN_DECLS
/**
* purple_gdk_pixbuf_make_round:
* @pixbuf: The buddy icon to transform
*
* Rounds the corners of a GdkPixbuf in place.
*/
void purple_gdk_pixbuf_make_round(GdkPixbuf *pixbuf);
/**
* purple_gdk_pixbuf_is_opaque:
* @pixbuf: The pixbuf
*
* Returns TRUE if the GdkPixbuf is opaque, as determined by no
* alpha at any of the edge pixels.
*
* Returns: TRUE if the pixbuf is opaque around the edges, FALSE otherwise
*/
gboolean purple_gdk_pixbuf_is_opaque(GdkPixbuf *pixbuf);
/**
* purple_gdk_pixbuf_from_data:
* @buf: The raw binary image data.
* @count: The length of buf in bytes.
*
* Create a GdkPixbuf from a chunk of image data.
*
* Returns: (transfer full): A GdkPixbuf created from the image data, or NULL if
* there was an error parsing the data.
*/
GdkPixbuf *purple_gdk_pixbuf_from_data(const guchar *buf, gsize count);
/**
* purple_gdk_pixbuf_from_image:
* @image: a PurpleImage.
*
* Create a GdkPixbuf from a PurpleImage.
*
* Returns: (transfer full): a GdkPixbuf created from the @image.
*/
GdkPixbuf *
purple_gdk_pixbuf_from_image(PurpleImage *image);
/**
* purple_gdk_pixbuf_new_from_file:
* @filename: Name of file to load, in the GLib file name encoding
*
* Helper function that calls gdk_pixbuf_new_from_file() and checks both
* the return code and the GError and returns NULL if either one failed.
*
* The gdk-pixbuf documentation implies that it is sufficient to check
* the return value of gdk_pixbuf_new_from_file() to determine
* whether the image was able to be loaded. However, this is not the case
* with gdk-pixbuf 2.23.3 and probably many earlier versions. In some
* cases a GdkPixbuf object is returned that will cause some operations
* (like gdk_pixbuf_scale_simple()) to rapidly consume memory in an
* infinite loop.
*
* This function shouldn't be necessary once Pidgin requires a version of
* gdk-pixbuf where the aforementioned bug is fixed. However, it might be
* nice to keep this function around for the debug message that it logs.
*
* Returns: (transfer full): The GdkPixbuf if successful. Otherwise NULL is returned and
* a warning is logged.
*/
GdkPixbuf *purple_gdk_pixbuf_new_from_file(const char *filename);
/**
* purple_gdk_pixbuf_new_from_file_at_size:
* @filename: Name of file to load, in the GLib file name encoding
* @width: The width the image should have or -1 to not constrain the width
* @height: The height the image should have or -1 to not constrain the height
*
* Helper function that calls gdk_pixbuf_new_from_file_at_size() and checks
* both the return code and the GError and returns NULL if either one failed.
*
* The gdk-pixbuf documentation implies that it is sufficient to check
* the return value of gdk_pixbuf_new_from_file_at_size() to determine
* whether the image was able to be loaded. However, this is not the case
* with gdk-pixbuf 2.23.3 and probably many earlier versions. In some
* cases a GdkPixbuf object is returned that will cause some operations
* (like gdk_pixbuf_scale_simple()) to rapidly consume memory in an
* infinite loop.
*
* This function shouldn't be necessary once Pidgin requires a version of
* gdk-pixbuf where the aforementioned bug is fixed. However, it might be
* nice to keep this function around for the debug message that it logs.
*
* Returns: (transfer full): The GdkPixbuf if successful. Otherwise NULL is returned and
* a warning is logged.
*/
GdkPixbuf *purple_gdk_pixbuf_new_from_file_at_size(const char *filename, int width, int height);
G_END_DECLS
#endif /* PURPLE_GDK_PIXBUF_H */
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