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An optional OutputScale integer key has been added to index.theme subdirs description, so icon themes may provide icons that are more suitable to render at a (typically 2x) integer upscaled resolution. This way it is possible to make eg. a 16x16@2x icon has a real size of 32x32, but contains a similar level of detail to the 16x16 icon so things don't look any more cluttered on high-dpi screens. The pixbuf lookup has changed so it prefers a minimal scale change that yields the minimal real size difference, so if looking up for a 16x16 icon at 2x, it would first prefer 16x16@2x, then 32x32, and then any other icon that's closest to match There is now *_for_scale() variants for all GtkIconTheme ways to directly or indirectly fetch a GdkPixbuf. This is based on code by Carlos Garnacho with changes by Alexander Larsson
337 lines
15 KiB
C
337 lines
15 KiB
C
/* GtkIconTheme - a loader for icon themes
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* gtk-icon-loader.h Copyright (C) 2002, 2003 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GTK_ICON_THEME_H__
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#define __GTK_ICON_THEME_H__
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gdk/gdk.h>
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#include <gtk/gtkstylecontext.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_ICON_INFO (gtk_icon_info_get_type ())
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#define GTK_ICON_INFO(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_INFO, GtkIconInfo))
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#define GTK_ICON_INFO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_ICON_INFO, GtkIconInfoClass))
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#define GTK_IS_ICON_INFO(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_INFO))
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#define GTK_IS_ICON_INFO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ICON_INFO))
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#define GTK_ICON_INFO_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_ICON_INFO, GtkIconInfoClass))
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#define GTK_TYPE_ICON_THEME (gtk_icon_theme_get_type ())
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#define GTK_ICON_THEME(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_THEME, GtkIconTheme))
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#define GTK_ICON_THEME_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_ICON_THEME, GtkIconThemeClass))
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#define GTK_IS_ICON_THEME(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_THEME))
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#define GTK_IS_ICON_THEME_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ICON_THEME))
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#define GTK_ICON_THEME_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_ICON_THEME, GtkIconThemeClass))
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/**
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* GtkIconInfo:
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*
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* Contains information found when looking up an icon in
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* an icon theme.
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*/
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typedef struct _GtkIconInfo GtkIconInfo;
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typedef struct _GtkIconInfoClass GtkIconInfoClass;
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typedef struct _GtkIconTheme GtkIconTheme;
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typedef struct _GtkIconThemeClass GtkIconThemeClass;
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typedef struct _GtkIconThemePrivate GtkIconThemePrivate;
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/**
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* GtkIconTheme:
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*
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* Acts as a database of information about an icon theme.
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* Normally, you retrieve the icon theme for a particular
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* screen using gtk_icon_theme_get_for_screen() and it
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* will contain information about current icon theme for
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* that screen, but you can also create a new #GtkIconTheme
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* object and set the icon theme name explicitely using
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* gtk_icon_theme_set_custom_theme().
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*/
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struct _GtkIconTheme
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{
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/*< private >*/
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GObject parent_instance;
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GtkIconThemePrivate *priv;
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};
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struct _GtkIconThemeClass
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{
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GObjectClass parent_class;
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void (* changed) (GtkIconTheme *icon_theme);
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/* Padding for future expansion */
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void (*_gtk_reserved1) (void);
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void (*_gtk_reserved2) (void);
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void (*_gtk_reserved3) (void);
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void (*_gtk_reserved4) (void);
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};
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/**
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* GtkIconLookupFlags:
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* @GTK_ICON_LOOKUP_NO_SVG: Never return SVG icons, even if gdk-pixbuf
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* supports them. Cannot be used together with %GTK_ICON_LOOKUP_FORCE_SVG.
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* @GTK_ICON_LOOKUP_FORCE_SVG: Return SVG icons, even if gdk-pixbuf
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* doesn't support them.
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* Cannot be used together with %GTK_ICON_LOOKUP_NO_SVG.
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* @GTK_ICON_LOOKUP_USE_BUILTIN: When passed to
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* gtk_icon_theme_lookup_icon() includes builtin icons
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* as well as files. For a builtin icon, gtk_icon_info_get_filename()
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* returns %NULL and you need to call gtk_icon_info_get_builtin_pixbuf().
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* @GTK_ICON_LOOKUP_GENERIC_FALLBACK: Try to shorten icon name at '-'
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* characters before looking at inherited themes. For more general
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* fallback, see gtk_icon_theme_choose_icon(). Since 2.12.
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* @GTK_ICON_LOOKUP_FORCE_SIZE: Always return the icon scaled to the
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* requested size. Since 2.14.
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*
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* Used to specify options for gtk_icon_theme_lookup_icon()
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**/
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typedef enum
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{
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GTK_ICON_LOOKUP_NO_SVG = 1 << 0,
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GTK_ICON_LOOKUP_FORCE_SVG = 1 << 1,
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GTK_ICON_LOOKUP_USE_BUILTIN = 1 << 2,
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GTK_ICON_LOOKUP_GENERIC_FALLBACK = 1 << 3,
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GTK_ICON_LOOKUP_FORCE_SIZE = 1 << 4
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} GtkIconLookupFlags;
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/**
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* GTK_ICON_THEME_ERROR:
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*
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* The #GQuark used for #GtkIconThemeError errors.
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*/
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#define GTK_ICON_THEME_ERROR gtk_icon_theme_error_quark ()
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/**
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* GtkIconThemeError:
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* @GTK_ICON_THEME_NOT_FOUND: The icon specified does not exist in the theme
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* @GTK_ICON_THEME_FAILED: An unspecified error occurred.
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*
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* Error codes for GtkIconTheme operations.
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**/
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typedef enum {
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GTK_ICON_THEME_NOT_FOUND,
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GTK_ICON_THEME_FAILED
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} GtkIconThemeError;
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GDK_AVAILABLE_IN_ALL
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GQuark gtk_icon_theme_error_quark (void);
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GDK_AVAILABLE_IN_ALL
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GType gtk_icon_theme_get_type (void) G_GNUC_CONST;
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GDK_AVAILABLE_IN_ALL
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GtkIconTheme *gtk_icon_theme_new (void);
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GDK_AVAILABLE_IN_ALL
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GtkIconTheme *gtk_icon_theme_get_default (void);
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GDK_AVAILABLE_IN_ALL
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GtkIconTheme *gtk_icon_theme_get_for_screen (GdkScreen *screen);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_set_screen (GtkIconTheme *icon_theme,
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GdkScreen *screen);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_set_search_path (GtkIconTheme *icon_theme,
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const gchar *path[],
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gint n_elements);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_get_search_path (GtkIconTheme *icon_theme,
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gchar **path[],
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gint *n_elements);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_append_search_path (GtkIconTheme *icon_theme,
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const gchar *path);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_prepend_search_path (GtkIconTheme *icon_theme,
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const gchar *path);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_set_custom_theme (GtkIconTheme *icon_theme,
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const gchar *theme_name);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_icon_theme_has_icon (GtkIconTheme *icon_theme,
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const gchar *icon_name);
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GDK_AVAILABLE_IN_ALL
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gint *gtk_icon_theme_get_icon_sizes (GtkIconTheme *icon_theme,
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const gchar *icon_name);
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GDK_AVAILABLE_IN_ALL
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GtkIconInfo * gtk_icon_theme_lookup_icon (GtkIconTheme *icon_theme,
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const gchar *icon_name,
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gint size,
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GtkIconLookupFlags flags);
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GDK_AVAILABLE_IN_3_10
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GtkIconInfo * gtk_icon_theme_lookup_icon_for_scale (GtkIconTheme *icon_theme,
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const gchar *icon_name,
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gint size,
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gint scale,
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GtkIconLookupFlags flags);
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GDK_AVAILABLE_IN_ALL
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GtkIconInfo * gtk_icon_theme_choose_icon (GtkIconTheme *icon_theme,
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const gchar *icon_names[],
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gint size,
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GtkIconLookupFlags flags);
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GDK_AVAILABLE_IN_3_10
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GtkIconInfo * gtk_icon_theme_choose_icon_for_scale (GtkIconTheme *icon_theme,
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const gchar *icon_names[],
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gint size,
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gint scale,
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GtkIconLookupFlags flags);
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GDK_AVAILABLE_IN_ALL
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GdkPixbuf * gtk_icon_theme_load_icon (GtkIconTheme *icon_theme,
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const gchar *icon_name,
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gint size,
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GtkIconLookupFlags flags,
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GError **error);
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GDK_AVAILABLE_IN_3_10
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GdkPixbuf * gtk_icon_theme_load_icon_for_scale (GtkIconTheme *icon_theme,
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const gchar *icon_name,
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gint size,
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gint scale,
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GtkIconLookupFlags flags,
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GError **error);
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GDK_AVAILABLE_IN_ALL
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GtkIconInfo * gtk_icon_theme_lookup_by_gicon (GtkIconTheme *icon_theme,
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GIcon *icon,
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gint size,
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GtkIconLookupFlags flags);
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GtkIconInfo * gtk_icon_theme_lookup_by_gicon_for_scale (GtkIconTheme *icon_theme,
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GIcon *icon,
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gint size,
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gint scale,
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GtkIconLookupFlags flags);
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GDK_AVAILABLE_IN_ALL
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GList * gtk_icon_theme_list_icons (GtkIconTheme *icon_theme,
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const gchar *context);
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GDK_AVAILABLE_IN_ALL
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GList * gtk_icon_theme_list_contexts (GtkIconTheme *icon_theme);
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GDK_AVAILABLE_IN_ALL
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char * gtk_icon_theme_get_example_icon_name (GtkIconTheme *icon_theme);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_icon_theme_rescan_if_needed (GtkIconTheme *icon_theme);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_theme_add_builtin_icon (const gchar *icon_name,
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gint size,
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GdkPixbuf *pixbuf);
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GDK_AVAILABLE_IN_ALL
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GType gtk_icon_info_get_type (void) G_GNUC_CONST;
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GDK_DEPRECATED_IN_3_8_FOR(g_object_ref)
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GtkIconInfo * gtk_icon_info_copy (GtkIconInfo *icon_info);
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GDK_DEPRECATED_IN_3_8_FOR(g_object_unref)
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void gtk_icon_info_free (GtkIconInfo *icon_info);
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GDK_AVAILABLE_IN_ALL
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GtkIconInfo * gtk_icon_info_new_for_pixbuf (GtkIconTheme *icon_theme,
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GdkPixbuf *pixbuf);
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GDK_AVAILABLE_IN_ALL
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gint gtk_icon_info_get_base_size (GtkIconInfo *icon_info);
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GDK_AVAILABLE_IN_3_10
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gint gtk_icon_info_get_base_scale (GtkIconInfo *icon_info);
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GDK_AVAILABLE_IN_ALL
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const gchar * gtk_icon_info_get_filename (GtkIconInfo *icon_info);
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GDK_AVAILABLE_IN_ALL
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GdkPixbuf * gtk_icon_info_get_builtin_pixbuf (GtkIconInfo *icon_info);
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GDK_AVAILABLE_IN_ALL
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GdkPixbuf * gtk_icon_info_load_icon (GtkIconInfo *icon_info,
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GError **error);
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GDK_AVAILABLE_IN_3_8
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void gtk_icon_info_load_icon_async (GtkIconInfo *icon_info,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GDK_AVAILABLE_IN_3_8
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GdkPixbuf * gtk_icon_info_load_icon_finish (GtkIconInfo *icon_info,
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GAsyncResult *res,
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GError **error);
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GDK_AVAILABLE_IN_ALL
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GdkPixbuf * gtk_icon_info_load_symbolic (GtkIconInfo *icon_info,
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const GdkRGBA *fg,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color,
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gboolean *was_symbolic,
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GError **error);
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GDK_AVAILABLE_IN_3_8
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void gtk_icon_info_load_symbolic_async (GtkIconInfo *icon_info,
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const GdkRGBA *fg,
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const GdkRGBA *success_color,
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const GdkRGBA *warning_color,
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const GdkRGBA *error_color,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GDK_AVAILABLE_IN_3_8
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GdkPixbuf * gtk_icon_info_load_symbolic_finish (GtkIconInfo *icon_info,
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GAsyncResult *res,
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gboolean *was_symbolic,
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GError **error);
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GDK_AVAILABLE_IN_ALL
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GdkPixbuf * gtk_icon_info_load_symbolic_for_context (GtkIconInfo *icon_info,
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GtkStyleContext *context,
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gboolean *was_symbolic,
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GError **error);
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GDK_AVAILABLE_IN_3_8
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void gtk_icon_info_load_symbolic_for_context_async (GtkIconInfo *icon_info,
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GtkStyleContext *context,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GDK_AVAILABLE_IN_3_8
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GdkPixbuf * gtk_icon_info_load_symbolic_for_context_finish (GtkIconInfo *icon_info,
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GAsyncResult *res,
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gboolean *was_symbolic,
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GError **error);
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GDK_DEPRECATED_IN_3_0_FOR(gtk_icon_info_load_symbol_for_context)
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GdkPixbuf * gtk_icon_info_load_symbolic_for_style (GtkIconInfo *icon_info,
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GtkStyle *style,
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GtkStateType state,
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gboolean *was_symbolic,
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GError **error);
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GDK_AVAILABLE_IN_ALL
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void gtk_icon_info_set_raw_coordinates (GtkIconInfo *icon_info,
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gboolean raw_coordinates);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_icon_info_get_embedded_rect (GtkIconInfo *icon_info,
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GdkRectangle *rectangle);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_icon_info_get_attach_points (GtkIconInfo *icon_info,
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GdkPoint **points,
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gint *n_points);
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GDK_AVAILABLE_IN_ALL
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const gchar * gtk_icon_info_get_display_name (GtkIconInfo *icon_info);
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/* Non-public methods */
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void _gtk_icon_theme_ensure_builtin_cache (void);
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G_END_DECLS
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#endif /* __GTK_ICON_THEME_H__ */
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