diff options
author | Carlos Soriano <csoriano@gnome.org> | 2016-04-22 17:02:38 +0200 |
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committer | Carlos Soriano <csoriano@gnome.org> | 2016-04-25 16:31:42 +0200 |
commit | 7e24f1b2a2b3b7860ee29820d69f5a1511fee994 (patch) | |
tree | a2ee175c5f9cd05ab518e768a073ef4a31fe8376 /src/nautilus-icon-info.c | |
parent | 2774b8552dcc89ae744700af5832dbf76c138a9e (diff) | |
download | nautilus-7e24f1b2a2b3b7860ee29820d69f5a1511fee994.tar.gz |
general: merge libnautilus-private to srcwip/csoriano/private-to-src
And fix make distcheck.
Although libnautilus-private seem self contained, it was actually
depending on the files on src/ for dnd.
Not only that, but files in libnautilus-private also were depending on
dnd files, which you can guess it's wrong.
Before the desktop split, this was working because the files were
distributed, but now was a problem since we reestructured the code, and
now nautilus being a library make distcheck stop working.
First solution was try to fix this inter dependency of files, but at
some point I realized that there was no real point on splitting some of
those files, because for example, is perfectly fine for dnd to need to
access the window functions, and it's perfectly fine for the widgets
in the private library to need to access to all dnd functions.
So seems to me the private library of nautilus is somehow an artificial
split, which provides more problems than solutions.
We needed libnautilus-private to have a private library that we could
isolate from extensions, but I don't think it worth given the problems
it provides, and also, this not so good logical split.
Right now, since with the desktop split we created a libnautilus to be
used by the desktop part of nautilus, extensions have access to all
the API of nautilus. We will think in future how this can be handled if
we want.
So for now, merge the libnautilus-private into src, and let's rethink
a better logic to split the code and the private parts of nautilus than
what we had.
Thanks a lot to Rafael Fonseca for helping in get this done.
https://bugzilla.gnome.org/show_bug.cgi?id=765543
Diffstat (limited to 'src/nautilus-icon-info.c')
-rw-r--r-- | src/nautilus-icon-info.c | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/src/nautilus-icon-info.c b/src/nautilus-icon-info.c new file mode 100644 index 000000000..9c4bc2ad2 --- /dev/null +++ b/src/nautilus-icon-info.c @@ -0,0 +1,579 @@ +/* nautilus-icon-info.c + * Copyright (C) 2007 Red Hat, Inc., Alexander Larsson <alexl@redhat.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <string.h> +#include "nautilus-icon-info.h" +#include "nautilus-icon-names.h" +#include "nautilus-default-file-icon.h" +#include <gtk/gtk.h> +#include <gio/gio.h> + +struct _NautilusIconInfo +{ + GObject parent; + + gboolean sole_owner; + gint64 last_use_time; + GdkPixbuf *pixbuf; + + char *icon_name; + + gint orig_scale; +}; + +struct _NautilusIconInfoClass +{ + GObjectClass parent_class; +}; + +static void schedule_reap_cache (void); + +G_DEFINE_TYPE (NautilusIconInfo, + nautilus_icon_info, + G_TYPE_OBJECT); + +static void +nautilus_icon_info_init (NautilusIconInfo *icon) +{ + icon->last_use_time = g_get_monotonic_time (); + icon->sole_owner = TRUE; +} + +gboolean +nautilus_icon_info_is_fallback (NautilusIconInfo *icon) +{ + return icon->pixbuf == NULL; +} + +static void +pixbuf_toggle_notify (gpointer info, + GObject *object, + gboolean is_last_ref) +{ + NautilusIconInfo *icon = info; + + if (is_last_ref) { + icon->sole_owner = TRUE; + g_object_remove_toggle_ref (object, + pixbuf_toggle_notify, + info); + icon->last_use_time = g_get_monotonic_time (); + schedule_reap_cache (); + } +} + +static void +nautilus_icon_info_finalize (GObject *object) +{ + NautilusIconInfo *icon; + + icon = NAUTILUS_ICON_INFO (object); + + if (!icon->sole_owner && icon->pixbuf) { + g_object_remove_toggle_ref (G_OBJECT (icon->pixbuf), + pixbuf_toggle_notify, + icon); + } + + if (icon->pixbuf) { + g_object_unref (icon->pixbuf); + } + g_free (icon->icon_name); + + G_OBJECT_CLASS (nautilus_icon_info_parent_class)->finalize (object); +} + +static void +nautilus_icon_info_class_init (NautilusIconInfoClass *icon_info_class) +{ + GObjectClass *gobject_class; + + gobject_class = (GObjectClass *) icon_info_class; + + gobject_class->finalize = nautilus_icon_info_finalize; + +} + +NautilusIconInfo * +nautilus_icon_info_new_for_pixbuf (GdkPixbuf *pixbuf, + gint scale) +{ + NautilusIconInfo *icon; + + icon = g_object_new (NAUTILUS_TYPE_ICON_INFO, NULL); + + if (pixbuf) { + icon->pixbuf = g_object_ref (pixbuf); + } + + icon->orig_scale = scale; + + return icon; +} + +static NautilusIconInfo * +nautilus_icon_info_new_for_icon_info (GtkIconInfo *icon_info, + gint scale) +{ + NautilusIconInfo *icon; + const char *filename; + char *basename, *p; + + icon = g_object_new (NAUTILUS_TYPE_ICON_INFO, NULL); + + icon->pixbuf = gtk_icon_info_load_icon (icon_info, NULL); + + filename = gtk_icon_info_get_filename (icon_info); + if (filename != NULL) { + basename = g_path_get_basename (filename); + p = strrchr (basename, '.'); + if (p) { + *p = 0; + } + icon->icon_name = basename; + } + + icon->orig_scale = scale; + + return icon; +} + + +typedef struct { + GIcon *icon; + int size; +} LoadableIconKey; + +typedef struct { + char *filename; + int size; +} ThemedIconKey; + +static GHashTable *loadable_icon_cache = NULL; +static GHashTable *themed_icon_cache = NULL; +static guint reap_cache_timeout = 0; + +#define MICROSEC_PER_SEC ((guint64)1000000L) + +static guint time_now; + +static gboolean +reap_old_icon (gpointer key, + gpointer value, + gpointer user_info) +{ + NautilusIconInfo *icon = value; + gboolean *reapable_icons_left = user_info; + + if (icon->sole_owner) { + if (time_now - icon->last_use_time > 30 * MICROSEC_PER_SEC) { + /* This went unused 30 secs ago. reap */ + return TRUE; + } else { + /* We can reap this soon */ + *reapable_icons_left = TRUE; + } + } + + return FALSE; +} + +static gboolean +reap_cache (gpointer data) +{ + gboolean reapable_icons_left; + + reapable_icons_left = TRUE; + + time_now = g_get_monotonic_time (); + + if (loadable_icon_cache) { + g_hash_table_foreach_remove (loadable_icon_cache, + reap_old_icon, + &reapable_icons_left); + } + + if (themed_icon_cache) { + g_hash_table_foreach_remove (themed_icon_cache, + reap_old_icon, + &reapable_icons_left); + } + + if (reapable_icons_left) { + return TRUE; + } else { + reap_cache_timeout = 0; + return FALSE; + } +} + +static void +schedule_reap_cache (void) +{ + if (reap_cache_timeout == 0) { + reap_cache_timeout = g_timeout_add_seconds_full (0, 5, + reap_cache, + NULL, NULL); + } +} + +void +nautilus_icon_info_clear_caches (void) +{ + if (loadable_icon_cache) { + g_hash_table_remove_all (loadable_icon_cache); + } + + if (themed_icon_cache) { + g_hash_table_remove_all (themed_icon_cache); + } +} + +static guint +loadable_icon_key_hash (LoadableIconKey *key) +{ + return g_icon_hash (key->icon) ^ key->size; +} + +static gboolean +loadable_icon_key_equal (const LoadableIconKey *a, + const LoadableIconKey *b) +{ + return a->size == b->size && + g_icon_equal (a->icon, b->icon); +} + +static LoadableIconKey * +loadable_icon_key_new (GIcon *icon, int size) +{ + LoadableIconKey *key; + + key = g_slice_new (LoadableIconKey); + key->icon = g_object_ref (icon); + key->size = size; + + return key; +} + +static void +loadable_icon_key_free (LoadableIconKey *key) +{ + g_object_unref (key->icon); + g_slice_free (LoadableIconKey, key); +} + +static guint +themed_icon_key_hash (ThemedIconKey *key) +{ + return g_str_hash (key->filename) ^ key->size; +} + +static gboolean +themed_icon_key_equal (const ThemedIconKey *a, + const ThemedIconKey *b) +{ + return a->size == b->size && + g_str_equal (a->filename, b->filename); +} + +static ThemedIconKey * +themed_icon_key_new (const char *filename, int size) +{ + ThemedIconKey *key; + + key = g_slice_new (ThemedIconKey); + key->filename = g_strdup (filename); + key->size = size; + + return key; +} + +static void +themed_icon_key_free (ThemedIconKey *key) +{ + g_free (key->filename); + g_slice_free (ThemedIconKey, key); +} + +NautilusIconInfo * +nautilus_icon_info_lookup (GIcon *icon, + int size, + int scale) +{ + NautilusIconInfo *icon_info; + GdkPixbuf *pixbuf; + + if (G_IS_LOADABLE_ICON (icon)) { + LoadableIconKey lookup_key; + LoadableIconKey *key; + GInputStream *stream; + + if (loadable_icon_cache == NULL) { + loadable_icon_cache = + g_hash_table_new_full ((GHashFunc)loadable_icon_key_hash, + (GEqualFunc)loadable_icon_key_equal, + (GDestroyNotify) loadable_icon_key_free, + (GDestroyNotify) g_object_unref); + } + + lookup_key.icon = icon; + lookup_key.size = size; + + icon_info = g_hash_table_lookup (loadable_icon_cache, &lookup_key); + if (icon_info) { + return g_object_ref (icon_info); + } + + pixbuf = NULL; + stream = g_loadable_icon_load (G_LOADABLE_ICON (icon), + size * scale, + NULL, NULL, NULL); + if (stream) { + pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream, + size * scale, size * scale, + TRUE, + NULL, NULL); + g_input_stream_close (stream, NULL, NULL); + g_object_unref (stream); + } + + icon_info = nautilus_icon_info_new_for_pixbuf (pixbuf, scale); + + key = loadable_icon_key_new (icon, size); + g_hash_table_insert (loadable_icon_cache, key, icon_info); + + return g_object_ref (icon_info); + } else if (G_IS_THEMED_ICON (icon)) { + const char * const *names; + ThemedIconKey lookup_key; + ThemedIconKey *key; + GtkIconTheme *icon_theme; + GtkIconInfo *gtkicon_info; + const char *filename; + + if (themed_icon_cache == NULL) { + themed_icon_cache = + g_hash_table_new_full ((GHashFunc)themed_icon_key_hash, + (GEqualFunc)themed_icon_key_equal, + (GDestroyNotify) themed_icon_key_free, + (GDestroyNotify) g_object_unref); + } + + names = g_themed_icon_get_names (G_THEMED_ICON (icon)); + + icon_theme = gtk_icon_theme_get_default (); + gtkicon_info = gtk_icon_theme_choose_icon_for_scale (icon_theme, (const char **)names, + size, scale, GTK_ICON_LOOKUP_FORCE_SIZE); + + if (gtkicon_info == NULL) { + return nautilus_icon_info_new_for_pixbuf (NULL, scale); + } + + filename = gtk_icon_info_get_filename (gtkicon_info); + if (filename == NULL) { + g_object_unref (gtkicon_info); + return nautilus_icon_info_new_for_pixbuf (NULL, scale); + } + + lookup_key.filename = (char *)filename; + lookup_key.size = size; + + icon_info = g_hash_table_lookup (themed_icon_cache, &lookup_key); + if (icon_info) { + g_object_unref (gtkicon_info); + return g_object_ref (icon_info); + } + + icon_info = nautilus_icon_info_new_for_icon_info (gtkicon_info, scale); + + key = themed_icon_key_new (filename, size); + g_hash_table_insert (themed_icon_cache, key, icon_info); + + g_object_unref (gtkicon_info); + + return g_object_ref (icon_info); + } else { + GdkPixbuf *pixbuf; + GtkIconInfo *gtk_icon_info; + + gtk_icon_info = gtk_icon_theme_lookup_by_gicon_for_scale (gtk_icon_theme_get_default (), + icon, + size, + scale, + GTK_ICON_LOOKUP_FORCE_SIZE); + if (gtk_icon_info != NULL) { + pixbuf = gtk_icon_info_load_icon (gtk_icon_info, NULL); + g_object_unref (gtk_icon_info); + } else { + pixbuf = NULL; + } + + icon_info = nautilus_icon_info_new_for_pixbuf (pixbuf, scale); + + if (pixbuf != NULL) { + g_object_unref (pixbuf); + } + + return icon_info; + } +} + +NautilusIconInfo * +nautilus_icon_info_lookup_from_name (const char *name, + int size, + int scale) +{ + GIcon *icon; + NautilusIconInfo *info; + + icon = g_themed_icon_new (name); + info = nautilus_icon_info_lookup (icon, size, scale); + g_object_unref (icon); + return info; +} + +NautilusIconInfo * +nautilus_icon_info_lookup_from_path (const char *path, + int size, + int scale) +{ + GFile *icon_file; + GIcon *icon; + NautilusIconInfo *info; + + icon_file = g_file_new_for_path (path); + icon = g_file_icon_new (icon_file); + info = nautilus_icon_info_lookup (icon, size, scale); + g_object_unref (icon); + g_object_unref (icon_file); + return info; +} + +GdkPixbuf * +nautilus_icon_info_get_pixbuf_nodefault (NautilusIconInfo *icon) +{ + GdkPixbuf *res; + + if (icon->pixbuf == NULL) { + res = NULL; + } else { + res = g_object_ref (icon->pixbuf); + + if (icon->sole_owner) { + icon->sole_owner = FALSE; + g_object_add_toggle_ref (G_OBJECT (res), + pixbuf_toggle_notify, + icon); + } + } + + return res; +} + + +GdkPixbuf * +nautilus_icon_info_get_pixbuf (NautilusIconInfo *icon) +{ + GdkPixbuf *res; + + res = nautilus_icon_info_get_pixbuf_nodefault (icon); + if (res == NULL) { + res = gdk_pixbuf_new_from_data (nautilus_default_file_icon, + GDK_COLORSPACE_RGB, + TRUE, + 8, + nautilus_default_file_icon_width, + nautilus_default_file_icon_height, + nautilus_default_file_icon_width * 4, /* stride */ + NULL, /* don't destroy info */ + NULL); + } + + return res; +} + +GdkPixbuf * +nautilus_icon_info_get_pixbuf_nodefault_at_size (NautilusIconInfo *icon, + gsize forced_size) +{ + GdkPixbuf *pixbuf, *scaled_pixbuf; + int w, h, s; + double scale; + + pixbuf = nautilus_icon_info_get_pixbuf_nodefault (icon); + + if (pixbuf == NULL) + return NULL; + + w = gdk_pixbuf_get_width (pixbuf) / icon->orig_scale; + h = gdk_pixbuf_get_height (pixbuf) / icon->orig_scale; + s = MAX (w, h); + if (s == forced_size) { + return pixbuf; + } + + scale = (double)forced_size / s; + scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf, + w * scale, h * scale, + GDK_INTERP_BILINEAR); + g_object_unref (pixbuf); + return scaled_pixbuf; +} + + +GdkPixbuf * +nautilus_icon_info_get_pixbuf_at_size (NautilusIconInfo *icon, + gsize forced_size) +{ + GdkPixbuf *pixbuf, *scaled_pixbuf; + int w, h, s; + double scale; + + pixbuf = nautilus_icon_info_get_pixbuf (icon); + + w = gdk_pixbuf_get_width (pixbuf) / icon->orig_scale; + h = gdk_pixbuf_get_height (pixbuf) / icon->orig_scale; + s = MAX (w, h); + if (s == forced_size) { + return pixbuf; + } + + scale = (double)forced_size / s; + scaled_pixbuf = gdk_pixbuf_scale_simple (pixbuf, + w * scale, h * scale, + GDK_INTERP_BILINEAR); + g_object_unref (pixbuf); + return scaled_pixbuf; +} + +const char * +nautilus_icon_info_get_used_name (NautilusIconInfo *icon) +{ + return icon->icon_name; +} + +gint +nautilus_get_icon_size_for_stock_size (GtkIconSize size) +{ + gint w, h; + + if (gtk_icon_size_lookup (size, &w, &h)) { + return MAX (w, h); + } + return NAUTILUS_CANVAS_ICON_SIZE_SMALL; +} |