diff options
Diffstat (limited to 'tp-account-widgets/tpaw-pixbuf-utils.c')
| -rw-r--r-- | tp-account-widgets/tpaw-pixbuf-utils.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/tp-account-widgets/tpaw-pixbuf-utils.c b/tp-account-widgets/tpaw-pixbuf-utils.c new file mode 100644 index 000000000..1b226e92d --- /dev/null +++ b/tp-account-widgets/tpaw-pixbuf-utils.c @@ -0,0 +1,183 @@ +/* + * Copyright (C) 2002-2007 Imendio AB + * Copyright (C) 2007-2013 Collabora Ltd. + * + * This library 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 2.1 of the License, or (at your option) any later version. + * + * This library 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 this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * Authors: Mikael Hallendal <micke@imendio.com> + * Richard Hult <richard@imendio.com> + * Martyn Russell <martyn@imendio.com> + * Xavier Claessens <xclaesse@gmail.com> + * Travis Reitter <travis.reitter@collabora.co.uk> + */ + +#include "config.h" +#include "tpaw-pixbuf-utils.h" + +#include <gdk/gdkx.h> + +#define DEBUG_FLAG EMPATHY_DEBUG_OTHER +#include "empathy-debug.h" + +GdkPixbuf * +tpaw_pixbuf_from_data (gchar *data, + gsize data_size) +{ + return tpaw_pixbuf_from_data_and_mime (data, data_size, NULL); +} + +GdkPixbuf * +tpaw_pixbuf_from_data_and_mime (gchar *data, + gsize data_size, + gchar **mime_type) +{ + GdkPixbufLoader *loader; + GdkPixbufFormat *format; + GdkPixbuf *pixbuf = NULL; + gchar **mime_types; + GError *error = NULL; + + if (!data) + return NULL; + + loader = gdk_pixbuf_loader_new (); + if (!gdk_pixbuf_loader_write (loader, (guchar *) data, data_size, &error)) + { + DEBUG ("Failed to write to pixbuf loader: %s", + error ? error->message : "No error given"); + goto out; + } + + if (!gdk_pixbuf_loader_close (loader, &error)) + { + DEBUG ("Failed to close pixbuf loader: %s", + error ? error->message : "No error given"); + goto out; + } + + pixbuf = gdk_pixbuf_loader_get_pixbuf (loader); + if (pixbuf) + { + g_object_ref (pixbuf); + + if (mime_type != NULL) + { + format = gdk_pixbuf_loader_get_format (loader); + mime_types = gdk_pixbuf_format_get_mime_types (format); + + *mime_type = g_strdup (*mime_types); + if (mime_types[1] != NULL) + DEBUG ("Loader supports more than one mime " + "type! Picking the first one, %s", + *mime_type); + + g_strfreev (mime_types); + } + } + +out: + g_clear_error (&error); + g_object_unref (loader); + + return pixbuf; +} + +GdkPixbuf * +tpaw_pixbuf_scale_down_if_necessary (GdkPixbuf *pixbuf, + gint max_size) +{ + gint width, height; + gdouble factor; + + width = gdk_pixbuf_get_width (pixbuf); + height = gdk_pixbuf_get_height (pixbuf); + + if (width > 0 && (width > max_size || height > max_size)) + { + factor = (gdouble) max_size / MAX (width, height); + + width = width * factor; + height = height * factor; + + return gdk_pixbuf_scale_simple (pixbuf, width, height, GDK_INTERP_HYPER); + } + + return g_object_ref (pixbuf); +} + +GdkPixbuf * +tpaw_pixbuf_from_icon_name_sized (const gchar *icon_name, + gint size) +{ + GtkIconTheme *theme; + GdkPixbuf *pixbuf; + GError *error = NULL; + + if (!icon_name) + return NULL; + + theme = gtk_icon_theme_get_default (); + + pixbuf = gtk_icon_theme_load_icon (theme, icon_name, size, 0, &error); + + if (error) + { + DEBUG ("Error loading icon: %s", error->message); + g_clear_error (&error); + } + + return pixbuf; +} + +GdkPixbuf * +tpaw_pixbuf_from_icon_name (const gchar *icon_name, + GtkIconSize icon_size) +{ + gint w, h; + gint size = 48; + + if (!icon_name) + return NULL; + + if (gtk_icon_size_lookup (icon_size, &w, &h)) + size = (w + h) / 2; + + return tpaw_pixbuf_from_icon_name_sized (icon_name, size); +} + +gchar * +tpaw_filename_from_icon_name (const gchar *icon_name, + GtkIconSize icon_size) +{ + GtkIconTheme *icon_theme; + GtkIconInfo *icon_info; + gint w, h; + gint size = 48; + gchar *ret; + + icon_theme = gtk_icon_theme_get_default (); + + if (gtk_icon_size_lookup (icon_size, &w, &h)) + size = (w + h) / 2; + + icon_info = gtk_icon_theme_lookup_icon (icon_theme, icon_name, size, 0); + if (icon_info == NULL) + return NULL; + + ret = g_strdup (gtk_icon_info_get_filename (icon_info)); + gtk_icon_info_free (icon_info); + + return ret; +} |