GtkCssProvider

gtk_css_provider_get_default ()

GtkCssProvider *
gtk_css_provider_get_default (void);

Returns the provider containing the style settings used as a fallback for all widgets.

gtk_css_provider_get_named ()

GtkCssProvider *
gtk_css_provider_get_named (const gchar *name,
                            const gchar *variant);

Loads a theme from the usual theme paths

gtk_css_provider_load_from_data ()

gboolean
gtk_css_provider_load_from_data (GtkCssProvider *css_provider,
                                 const gchar *data,
                                 gssize length,
                                 GError **error);

Loads data into css_provider , and by doing so clears any previously loaded information.

gtk_css_provider_load_from_file ()

gboolean
gtk_css_provider_load_from_file (GtkCssProvider *css_provider,
                                 GFile *file,
                                 GError **error);

Loads the data contained in file into css_provider , making it clear any previously loaded information.

gtk_css_provider_load_from_path ()

gboolean
gtk_css_provider_load_from_path (GtkCssProvider *css_provider,
                                 const gchar *path,
                                 GError **error);

Loads the data contained in path into css_provider , making it clear any previously loaded information.

gtk_css_provider_load_from_resource ()

void
gtk_css_provider_load_from_resource (GtkCssProvider *css_provider,
                                     const gchar *resource_path);

Loads the data contained in the resource at resource_path into the GtkCssProvider, clearing any previously loaded information.

To track errors while loading CSS, connect to the “parsing-error” signal.

Since: 3.16

gtk_css_provider_new ()

GtkCssProvider *
gtk_css_provider_new (void);

Returns a newly created GtkCssProvider.

gtk_css_provider_to_string ()

char *
gtk_css_provider_to_string (GtkCssProvider *provider);

Converts the provider into a string representation in CSS format.

Using gtk_css_provider_load_from_data() with the return value from this function on a new provider created with gtk_css_provider_new() will basically create a duplicate of this provider .

Since: 3.2

gtk_css_section_get_end_line ()

guint
gtk_css_section_get_end_line (const GtkCssSection *section);

Returns the line in the CSS document where this section end. The line number is 0-indexed, so the first line of the document will return 0. This value may change in future invocations of this function if section is not yet parsed completely. This will for example happen in the GtkCssProvider::parsing-error signal. The end position and line may be identical to the start position and line for sections which failed to parse anything successfully.

Since: 3.2

gtk_css_section_get_end_position ()

guint
gtk_css_section_get_end_position (const GtkCssSection *section);

Returns the offset in bytes from the start of the current line returned via gtk_css_section_get_end_line(). This value may change in future invocations of this function if section is not yet parsed completely. This will for example happen in the GtkCssProvider::parsing-error signal. The end position and line may be identical to the start position and line for sections which failed to parse anything successfully.

Since: 3.2

gtk_css_section_get_file ()

GFile *
gtk_css_section_get_file (const GtkCssSection *section);

Gets the file that section was parsed from. If no such file exists, for example because the CSS was loaded via gtk_css_provider_load_from_data() , then NULL is returned.

Since: 3.2

gtk_css_section_get_parent ()

GtkCssSection *
gtk_css_section_get_parent (const GtkCssSection *section);

Gets the parent section for the given section . The parent section is the section that contains this section . A special case are sections of type GTK_CSS_SECTION_DOCUMENT. Their parent will either be NULL if they are the original CSS document that was loaded by gtk_css_provider_load_from_file() or a section of type GTK_CSS_SECTION_IMPORT if it was loaded with an import rule from a different file.

Since: 3.2

gtk_css_section_get_section_type ()

GtkCssSectionType
gtk_css_section_get_section_type (const GtkCssSection *section);

Gets the type of information that section describes.

Since: 3.2

gtk_css_section_get_start_line ()

guint
gtk_css_section_get_start_line (const GtkCssSection *section);

Returns the line in the CSS document where this section starts. The line number is 0-indexed, so the first line of the document will return 0.

Since: 3.2

gtk_css_section_get_start_position ()

guint
gtk_css_section_get_start_position (const GtkCssSection *section);

Returns the offset in bytes from the start of the current line returned via gtk_css_section_get_start_line().

Since: 3.2

gtk_css_section_ref ()

GtkCssSection *
gtk_css_section_ref (GtkCssSection *section);

Increments the reference count on section .

Since: 3.2

gtk_css_section_unref ()

void
gtk_css_section_unref (GtkCssSection *section);

Decrements the reference count on section , freeing the structure if the reference count reaches 0.

Since: 3.2

struct GtkCssProvider

struct GtkCssProvider;

GTK_CSS_PROVIDER_ERROR

#define GTK_CSS_PROVIDER_ERROR (gtk_css_provider_error_quark ())

Domain for GtkCssProvider errors.

enum GtkCssProviderError

Error codes for GTK_CSS_PROVIDER_ERROR.

GtkCssSection

typedef struct _GtkCssSection GtkCssSection;

Defines a part of a CSS document. Because sections are nested into one another, you can use gtk_css_section_get_parent() to get the containing region.

Since: 3.2

enum GtkCssSectionType

The different types of sections indicate parts of a CSS document as parsed by GTK’s CSS parser. They are oriented towards the CSS Grammar, but may contain extensions.

More types might be added in the future as the parser incorporates more features.

Since: 3.2

The “parsing-error” signal

void
user_function (GtkCssProvider *provider,
               GtkCssSection  *section,
               GError         *error,
               gpointer        user_data)

Signals that a parsing error occurred. the path , line and position describe the actual location of the error as accurately as possible.

Parsing errors are never fatal, so the parsing will resume after the error. Errors may however cause parts of the given data or even all of it to not be parsed at all. So it is a useful idea to check that the parsing succeeds by connecting to this signal.

Note that this signal may be emitted at any time as the css provider may opt to defer parsing parts or all of the input to a later time than when a loading function was called.

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