GtkFileFilter as GtkBuildable

The GtkFileFilter 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> or <pattern> has the same effect as as calling gtk_file_filter_add_mime_type() or gtk_file_filter_add_pattern().

An example of a UI definition fragment specifying GtkFileFilter rules:

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<object class="GtkFileFilter">
  <mime-types>
    <mime-type>text/plain</mime-type>
    <mime-type>image/ *</mime-type>
  </mime-types>
  <patterns>
    <pattern>*.txt</pattern>
    <pattern>*.png</pattern>
  </patterns>
</object>

GtkFileFilterFunc ()

gboolean
(*GtkFileFilterFunc) (const GtkFileFilterInfo *filter_info,
                      gpointer data);

The type of function that is used with custom filters, see gtk_file_filter_add_custom().

gtk_file_filter_new ()

GtkFileFilter *
gtk_file_filter_new (void);

Creates a new GtkFileFilter with no rules added to it. Such a filter doesn’t accept any files, so is not particularly useful until you add rules with gtk_file_filter_add_mime_type(), gtk_file_filter_add_pattern(), or gtk_file_filter_add_custom(). To create a filter that accepts any file, use:

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GtkFileFilter *filter = gtk_file_filter_new ();
gtk_file_filter_add_pattern (filter, "*");

Since 2.4

gtk_file_filter_set_name ()

void
gtk_file_filter_set_name (GtkFileFilter *filter,
                          const gchar *name);

Sets the human-readable name of the filter; this is the string that will be displayed in the file selector user interface if there is a selectable list of filters.

Since 2.4

gtk_file_filter_get_name ()

const gchar *
gtk_file_filter_get_name (GtkFileFilter *filter);

Gets the human-readable name for the filter. See gtk_file_filter_set_name().

Since 2.4

gtk_file_filter_add_mime_type ()

void
gtk_file_filter_add_mime_type (GtkFileFilter *filter,
                               const gchar *mime_type);

Adds a rule allowing a given mime type to filter .

Since 2.4

gtk_file_filter_add_pattern ()

void
gtk_file_filter_add_pattern (GtkFileFilter *filter,
                             const gchar *pattern);

Adds a rule allowing a shell style glob to a filter.

Since 2.4

gtk_file_filter_add_pixbuf_formats ()

void
gtk_file_filter_add_pixbuf_formats (GtkFileFilter *filter);

Adds a rule allowing image files in the formats supported by GdkPixbuf.

Since 2.6

gtk_file_filter_add_custom ()

void
gtk_file_filter_add_custom (GtkFileFilter *filter,
                            GtkFileFilterFlags needed,
                            GtkFileFilterFunc func,
                            gpointer data,
                            GDestroyNotify notify);

Adds rule to a filter that allows files 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.

Since 2.4

gtk_file_filter_get_needed ()

GtkFileFilterFlags
gtk_file_filter_get_needed (GtkFileFilter *filter);

Gets the fields that need to be filled in for the GtkFileFilterInfo passed to gtk_file_filter_filter()

This function will not typically be used by applications; it is intended principally for use in the implementation of GtkFileChooser.

Since 2.4

gtk_file_filter_filter ()

gboolean
gtk_file_filter_filter (GtkFileFilter *filter,
                        const GtkFileFilterInfo *filter_info);

Tests whether a file should be displayed according to filter . The GtkFileFilterInfo filter_info should include the fields returned from gtk_file_filter_get_needed().

This function will not typically be used by applications; it is intended principally for use in the implementation of GtkFileChooser.

Since 2.4

GtkFileFilter

typedef struct _GtkFileFilter GtkFileFilter;

struct GtkFileFilterInfo

struct GtkFileFilterInfo {
  GtkFileFilterFlags contains;

  const gchar *filename;
  const gchar *uri;
  const gchar *display_name;
  const gchar *mime_type;
};

A GtkFileFilterInfo is used to pass information about the tested file to gtk_file_filter_filter().

enum GtkFileFilterFlags

These flags indicate what parts of a GtkFileFilterInfo struct are filled or need to be filled.