GtkRecentFilter
GtkRecentFilter — A filter for selecting a subset of recently used files
Functions
gboolean | (*GtkRecentFilterFunc) () |
GtkRecentFilter * | gtk_recent_filter_new () |
const gchar * | gtk_recent_filter_get_name () |
void | gtk_recent_filter_set_name () |
void | gtk_recent_filter_add_mime_type () |
void | gtk_recent_filter_add_pattern () |
void | gtk_recent_filter_add_pixbuf_formats () |
void | gtk_recent_filter_add_application () |
void | gtk_recent_filter_add_group () |
void | gtk_recent_filter_add_age () |
void | gtk_recent_filter_add_custom () |
GtkRecentFilterFlags | gtk_recent_filter_get_needed () |
gboolean | gtk_recent_filter_filter () |
Types and Values
GtkRecentFilter | |
struct | GtkRecentFilterInfo |
enum | GtkRecentFilterFlags |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkRecentFilter
Implemented Interfaces
GtkRecentFilter implements GtkBuildable.
Includes
#include <gtk/gtk.h>
Description
A GtkRecentFilter can be used to restrict the files being shown in a GtkRecentChooser. Files can be filtered based on their name (with gtk_recent_filter_add_pattern()
), on their mime type (with gtk_file_filter_add_mime_type()
), on the application that has registered them (with gtk_recent_filter_add_application()
), or by a custom filter function (with gtk_recent_filter_add_custom()
).
Filtering by mime type handles aliasing and subclassing of mime types; e.g. a filter for text/plain also matches a file with mime type application/rtf, since application/rtf is a subclass of text/plain. Note that GtkRecentFilter allows wildcards for the subtype of a mime type, so you can e.g. filter for image/*.
Normally, filters are used by adding them to a GtkRecentChooser, see gtk_recent_chooser_add_filter()
, but it is also possible to manually use a filter on a file with gtk_recent_filter_filter()
.
Recently used files are supported since GTK+ 2.10.
GtkRecentFilter as GtkBuildable
The GtkRecentFilter implementation of the GtkBuildable interface supports adding rules using the <mime-types>, <patterns> and <applications> elements and listing the rules within. Specifying a <mime-type>, <pattern> or <application> has the same effect as calling gtk_recent_filter_add_mime_type()
, gtk_recent_filter_add_pattern()
or gtk_recent_filter_add_application()
.
An example of a UI definition fragment specifying GtkRecentFilter rules:
Functions
GtkRecentFilterFunc ()
gboolean (*GtkRecentFilterFunc) (const GtkRecentFilterInfo *filter_info
,gpointer user_data
);
The type of function that is used with custom filters, see gtk_recent_filter_add_custom()
.
Parameters
filter_info | a GtkRecentFilterInfo that is filled according to the | |
user_data | user data passed to |
Returns
TRUE
if the file should be displayed
gtk_recent_filter_new ()
GtkRecentFilter *
gtk_recent_filter_new (void
);
Creates a new GtkRecentFilter with no rules added to it. Such filter does not accept any recently used resources, so is not particularly useful until you add rules with gtk_recent_filter_add_pattern()
, gtk_recent_filter_add_mime_type()
, gtk_recent_filter_add_application()
, gtk_recent_filter_add_age()
. To create a filter that accepts any recently used resource, use:
<object class="GtkRecentFilter"> <mime-types> <mime-type>text/plain</mime-type> <mime-type>image/png</mime-type> </mime-types> <patterns> <pattern>*.txt</pattern> <pattern>*.png</pattern> </patterns> <applications> <application>gimp</application> <application>gedit</application> <application>glade</application> </applications> </object>
Returns
a new GtkRecentFilter
Since: 2.10
gtk_recent_filter_get_name ()
const gchar *
gtk_recent_filter_get_name (GtkRecentFilter *filter
);
Gets the human-readable name for the filter. See gtk_recent_filter_set_name()
.
Parameters
filter |
Returns
the name of the filter, or NULL
. The returned string is owned by the filter object and should not be freed.
[nullable]
Since: 2.10
gtk_recent_filter_set_name ()
void gtk_recent_filter_set_name (GtkRecentFilter *filter
,const gchar *name
);
Sets the human-readable name of the filter; this is the string that will be displayed in the recently used resources selector user interface if there is a selectable list of filters.
Parameters
filter | ||
name | then human readable name of |
Since: 2.10
gtk_recent_filter_add_mime_type ()
void gtk_recent_filter_add_mime_type (GtkRecentFilter *filter
,const gchar *mime_type
);
Adds a rule that allows resources based on their registered MIME type.
Parameters
filter | ||
mime_type | a MIME type |
Since: 2.10
gtk_recent_filter_add_pattern ()
void gtk_recent_filter_add_pattern (GtkRecentFilter *filter
,const gchar *pattern
);
Adds a rule that allows resources based on a pattern matching their display name.
Parameters
filter | ||
pattern | a file pattern |
Since: 2.10
gtk_recent_filter_add_pixbuf_formats ()
void
gtk_recent_filter_add_pixbuf_formats (GtkRecentFilter *filter
);
Adds a rule allowing image files in the formats supported by GdkPixbuf.
Parameters
filter |
Since: 2.10
gtk_recent_filter_add_application ()
void gtk_recent_filter_add_application (GtkRecentFilter *filter
,const gchar *application
);
Adds a rule that allows resources based on the name of the application that has registered them.
Parameters
filter | ||
application | an application name |
Since: 2.10
gtk_recent_filter_add_group ()
void gtk_recent_filter_add_group (GtkRecentFilter *filter
,const gchar *group
);
Adds a rule that allows resources based on the name of the group to which they belong
Parameters
filter | ||
group | a group name |
Since: 2.10
gtk_recent_filter_add_age ()
void gtk_recent_filter_add_age (GtkRecentFilter *filter
,gint days
);
Adds a rule that allows resources based on their age - that is, the number of days elapsed since they were last modified.
Parameters
filter | ||
days | number of days |
Since: 2.10
gtk_recent_filter_add_custom ()
void gtk_recent_filter_add_custom (GtkRecentFilter *filter
,GtkRecentFilterFlags needed
,GtkRecentFilterFunc func
,gpointer data
,GDestroyNotify data_destroy
);
Adds a rule to a filter that allows resources based on a custom callback function. The bitfield needed
which is passed in provides information about what sorts of information that the filter function needs; this allows GTK+ to avoid retrieving expensive information when it isn’t needed by the filter.
Parameters
filter | ||
needed | bitfield of flags indicating the information that the custom filter function needs. | |
func | callback function; if the function returns | |
data | data to pass to | |
data_destroy | function to call to free |
Since: 2.10
gtk_recent_filter_get_needed ()
GtkRecentFilterFlags
gtk_recent_filter_get_needed (GtkRecentFilter *filter
);
Gets the fields that need to be filled in for the GtkRecentFilterInfo passed to gtk_recent_filter_filter()
This function will not typically be used by applications; it is intended principally for use in the implementation of GtkRecentChooser.
Parameters
filter |
Returns
bitfield of flags indicating needed fields when calling gtk_recent_filter_filter()
Since: 2.10
gtk_recent_filter_filter ()
gboolean gtk_recent_filter_filter (GtkRecentFilter *filter
,const GtkRecentFilterInfo *filter_info
);
Tests whether a file should be displayed according to filter
. The GtkRecentFilterInfo filter_info
should include the fields returned from gtk_recent_filter_get_needed()
, and must set the GtkRecentFilterInfo.contains field of filter_info
to indicate which fields have been set.
This function will not typically be used by applications; it is intended principally for use in the implementation of GtkRecentChooser.
Parameters
filter | ||
filter_info | a GtkRecentFilterInfo containing information about a recently used resource |
Returns
TRUE
if the file should be displayed
Since: 2.10
Types and Values
GtkRecentFilter
typedef struct _GtkRecentFilter GtkRecentFilter;
struct GtkRecentFilterInfo
struct GtkRecentFilterInfo { GtkRecentFilterFlags contains; const gchar *uri; const gchar *display_name; const gchar *mime_type; const gchar **applications; const gchar **groups; gint age; };
A GtkRecentFilterInfo struct is used to pass information about the tested file to gtk_recent_filter_filter()
.
Members
GtkRecentFilterFlags | GtkRecentFilterFlags to indicate which fields are set. | |
const gchar * | The URI of the file being tested. | [nullable] |
const gchar * | The string that will be used to display the file in the recent chooser. | [nullable] |
const gchar * | MIME type of the file. | [nullable] |
const gchar ** | The list of applications that have registered the file. | [nullable][array zero-terminated=1] |
const gchar ** | The groups to which the file belongs to. | [nullable][array zero-terminated=1] |
gint | The number of days elapsed since the file has been registered. |
enum GtkRecentFilterFlags
These flags indicate what parts of a GtkRecentFilterInfo struct are filled or need to be filled.
Members
GTK_RECENT_FILTER_URI | the URI of the file being tested | |
GTK_RECENT_FILTER_DISPLAY_NAME | the string that will be used to display the file in the recent chooser | |
GTK_RECENT_FILTER_MIME_TYPE | the mime type of the file | |
GTK_RECENT_FILTER_APPLICATION | the list of applications that have registered the file | |
GTK_RECENT_FILTER_GROUP | the groups to which the file belongs to | |
GTK_RECENT_FILTER_AGE | the number of days elapsed since the file has been registered |
© 2005–2020 The GNOME Project
Licensed under the GNU Lesser General Public License version 2.1 or later.
https://developer.gnome.org/gtk3/3.24/GtkRecentFilter.html