GtkTextTag

gtk_text_tag_new ()

GtkTextTag *
gtk_text_tag_new (const gchar *name);

Creates a GtkTextTag. Configure the tag using object arguments, i.e. using g_object_set().

gtk_text_tag_get_priority ()

gint
gtk_text_tag_get_priority (GtkTextTag *tag);

Get the tag priority.

gtk_text_tag_set_priority ()

void
gtk_text_tag_set_priority (GtkTextTag *tag,
                           gint priority);

Sets the priority of a GtkTextTag. Valid priorities start at 0 and go to one less than gtk_text_tag_table_get_size(). Each tag in a table has a unique priority; setting the priority of one tag shifts the priorities of all the other tags in the table to maintain a unique priority for each tag. Higher priority tags “win” if two tags both set the same text attribute. When adding a tag to a tag table, it will be assigned the highest priority in the table by default; so normally the precedence of a set of tags is the order in which they were added to the table, or created with gtk_text_buffer_create_tag(), which adds the tag to the buffer’s table automatically.

gtk_text_tag_event ()

gboolean
gtk_text_tag_event (GtkTextTag *tag,
                    GObject *event_object,
                    GdkEvent *event,
                    const GtkTextIter *iter);

Emits the “event” signal on the GtkTextTag.

gtk_text_tag_changed ()

void
gtk_text_tag_changed (GtkTextTag *tag,
                      gboolean size_changed);

Emits the “tag-changed” signal on the GtkTextTagTable where the tag is included.

The signal is already emitted when setting a GtkTextTag property. This function is useful for a GtkTextTag subclass.

Since: 3.20

gtk_text_attributes_new ()

GtkTextAttributes *
gtk_text_attributes_new (void);

Creates a GtkTextAttributes, which describes a set of properties on some text.

gtk_text_attributes_copy ()

GtkTextAttributes *
gtk_text_attributes_copy (GtkTextAttributes *src);

Copies src and returns a new GtkTextAttributes.

gtk_text_attributes_copy_values ()

void
gtk_text_attributes_copy_values (GtkTextAttributes *src,
                                 GtkTextAttributes *dest);

Copies the values from src to dest so that dest has the same values as src . Frees existing values in dest .

gtk_text_attributes_unref ()

void
gtk_text_attributes_unref (GtkTextAttributes *values);

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

gtk_text_attributes_ref ()

GtkTextAttributes *
gtk_text_attributes_ref (GtkTextAttributes *values);

Increments the reference count on values .

struct GtkTextTag

struct GtkTextTag;

struct GtkTextAttributes

struct GtkTextAttributes {
  GtkTextAppearance appearance;

  GtkJustification justification;
  GtkTextDirection direction;

  PangoFontDescription *font;

  gdouble font_scale;

  gint left_margin;
  gint right_margin;
  gint indent;

  gint pixels_above_lines;
  gint pixels_below_lines;
  gint pixels_inside_wrap;

  PangoTabArray *tabs;

  GtkWrapMode wrap_mode;

  PangoLanguage *language;

  guint invisible : 1;
  guint bg_full_height : 1;
  guint editable : 1;
  guint no_fallback: 1;

  gint letter_spacing;

#ifdef __GI_SCANNER__
  /* The scanner should only see the transparent union, so that its
   * content does not vary across architectures.
   */
  union {
    gchar *font_features;
};

Using GtkTextAttributes directly should rarely be necessary. It’s primarily useful with gtk_text_iter_get_attributes(). As with most GTK+ structs, the fields in this struct should only be read, never modified directly.

struct GtkTextAppearance

struct GtkTextAppearance {
  GdkColor bg_color; /* pixel is taken for underline color */
  GdkColor fg_color; /* pixel is taken for strikethrough color */

  /* super/subscript rise, can be negative */
  gint rise;

  guint underline : 4;          /* PangoUnderline */
  guint strikethrough : 1;

  /* Whether to use background-related values; this is irrelevant for
   * the values struct when in a tag, but is used for the composite
   * values struct; it's true if any of the tags being composited
   * had background stuff set.
   */
  guint draw_bg : 1;

  /* These are only used when we are actually laying out and rendering
   * a paragraph; not when a GtkTextAppearance is part of a
   * GtkTextAttributes.
   */
  guint inside_selection : 1;
  guint is_text : 1;

  /* For the sad story of this bit of code, see
   * https://bugzilla.gnome.org/show_bug.cgi?id=711158
   */
#ifdef __GI_SCANNER__
  /* The scanner should only see the transparent union, so that its
   * content does not vary across architectures.
   */
  union {
    GdkRGBA *rgba[2];
};

The “accumulative-margin” property

  “accumulative-margin”      gboolean

Whether the margins accumulate or override each other.

When set to TRUE the margins of this tag are added to the margins of any other non-accumulative margins present. When set to FALSE the margins override one another (the default).

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

Since: 2.12

The “background” property

  “background”               char *

Background color as a string.

Owner: GtkTextTag

Flags: Write

Default value: NULL

The “background-full-height” property

  “background-full-height”   gboolean

Whether the background color fills the entire line height or only the height of the tagged characters.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “background-full-height-set” property

  “background-full-height-set” gboolean

Whether this tag affects background height.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “background-gdk” property

  “background-gdk”           GdkColor *

Background color as a GdkColor.

Owner: GtkTextTag

Flags: Read / Write

The “background-rgba” property

  “background-rgba”          GdkRGBA *

Background color as a GdkRGBA.

Owner: GtkTextTag

Flags: Read / Write

Since: 3.2

The “background-set” property

  “background-set”           gboolean

Whether this tag affects the background color.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “direction” property

  “direction”                GtkTextDirection

Text direction, e.g. right-to-left or left-to-right.

Owner: GtkTextTag

Flags: Read / Write

Default value: GTK_TEXT_DIR_NONE

The “editable” property

  “editable”                 gboolean

Whether the text can be modified by the user.

Owner: GtkTextTag

Flags: Read / Write

Default value: TRUE

The “editable-set” property

  “editable-set”             gboolean

Whether this tag affects text editability.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “fallback” property

  “fallback”                 gboolean

Whether font fallback is enabled.

When set to TRUE, other fonts will be substituted where the current font is missing glyphs.

Owner: GtkTextTag

Flags: Read / Write

Default value: TRUE

Since: 3.16

The “fallback-set” property

  “fallback-set”             gboolean

Whether this tag affects font fallback.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “family” property

  “family”                   char *

Name of the font family, e.g. Sans, Helvetica, Times, Monospace.

Owner: GtkTextTag

Flags: Read / Write

Default value: NULL

The “family-set” property

  “family-set”               gboolean

Whether this tag affects the font family.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “font” property

  “font”                     char *

Font description as string, e.g. \"Sans Italic 12\".

Note that the initial value of this property depends on the internals of PangoFontDescription.

Owner: GtkTextTag

Flags: Read / Write

Default value: NULL

The “font-desc” property

  “font-desc”                PangoFontDescription *

Font description as a PangoFontDescription struct.

Owner: GtkTextTag

Flags: Read / Write

The “font-features” property

  “font-features”            char *

OpenType font features, as a string.

Owner: GtkTextTag

Flags: Read / Write

Default value: NULL

Since: 3.18

The “font-features-set” property

  “font-features-set”        gboolean

Whether this tag affects font features.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “foreground” property

  “foreground”               char *

Foreground color as a string.

Owner: GtkTextTag

Flags: Write

Default value: NULL

The “foreground-gdk” property

  “foreground-gdk”           GdkColor *

Foreground color as a GdkColor.

Owner: GtkTextTag

Flags: Read / Write

The “foreground-rgba” property

  “foreground-rgba”          GdkRGBA *

Foreground color as a GdkRGBA.

Owner: GtkTextTag

Flags: Read / Write

Since: 3.2

The “foreground-set” property

  “foreground-set”           gboolean

Whether this tag affects the foreground color.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “indent” property

  “indent”                   int

Amount to indent the paragraph, in pixels.

Owner: GtkTextTag

Flags: Read / Write

Default value: 0

The “indent-set” property

  “indent-set”               gboolean

Whether this tag affects indentation.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “invisible” property

  “invisible”                gboolean

Whether this text is hidden.

Note that there may still be problems with the support for invisible text, in particular when navigating programmatically inside a buffer containing invisible segments.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

Since: 2.8

The “invisible-set” property

  “invisible-set”            gboolean

Whether this tag affects text visibility.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “justification” property

  “justification”            GtkJustification

Left, right, or center justification.

Owner: GtkTextTag

Flags: Read / Write

Default value: GTK_JUSTIFY_LEFT

The “justification-set” property

  “justification-set”        gboolean

Whether this tag affects paragraph justification.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “language” property

  “language”                 char *

The language this text is in, as an ISO code. Pango can use this as a hint when rendering the text. If not set, an appropriate default will be used.

Note that the initial value of this property depends on the current locale, see also gtk_get_default_language().

Owner: GtkTextTag

Flags: Read / Write

Default value: NULL

The “language-set” property

  “language-set”             gboolean

Whether this tag affects the language the text is rendered as.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “left-margin” property

  “left-margin”              int

Width of the left margin in pixels.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “left-margin-set” property

  “left-margin-set”          gboolean

Whether this tag affects the left margin.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “letter-spacing” property

  “letter-spacing”           int

Extra spacing between graphemes, in Pango units.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

Since: 3.16

The “letter-spacing-set” property

  “letter-spacing-set”       gboolean

Whether this tag affects letter spacing.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “name” property

  “name”                     char *

Name used to refer to the text tag. NULL for anonymous tags.

Owner: GtkTextTag

Flags: Read / Write / Construct Only

Default value: NULL

The “paragraph-background” property

  “paragraph-background”     char *

The paragraph background color as a string.

Owner: GtkTextTag

Flags: Write

Default value: NULL

Since: 2.8

The “paragraph-background-gdk” property

  “paragraph-background-gdk” GdkColor *

The paragraph background color as a GdkColor.

Owner: GtkTextTag

Flags: Read / Write

Since: 2.8

The “paragraph-background-rgba” property

  “paragraph-background-rgba” GdkRGBA *

The paragraph background color as a GdkRGBA.

Owner: GtkTextTag

Flags: Read / Write

Since: 3.2

The “paragraph-background-set” property

  “paragraph-background-set” gboolean

Whether this tag affects the paragraph background color.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “pixels-above-lines” property

  “pixels-above-lines”       int

Pixels of blank space above paragraphs.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “pixels-above-lines-set” property

  “pixels-above-lines-set”   gboolean

Whether this tag affects the number of pixels above lines.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “pixels-below-lines” property

  “pixels-below-lines”       int

Pixels of blank space below paragraphs.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “pixels-below-lines-set” property

  “pixels-below-lines-set”   gboolean

Whether this tag affects the number of pixels above lines.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “pixels-inside-wrap” property

  “pixels-inside-wrap”       int

Pixels of blank space between wrapped lines in a paragraph.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “pixels-inside-wrap-set” property

  “pixels-inside-wrap-set”   gboolean

Whether this tag affects the number of pixels between wrapped lines.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “right-margin” property

  “right-margin”             int

Width of the right margin in pixels.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “right-margin-set” property

  “right-margin-set”         gboolean

Whether this tag affects the right margin.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “rise” property

  “rise”                     int

Offset of text above the baseline (below the baseline if rise is negative) in Pango units.

Owner: GtkTextTag

Flags: Read / Write

Default value: 0

The “rise-set” property

  “rise-set”                 gboolean

Whether this tag affects the rise.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “scale” property

  “scale”                    double

Font size as a scale factor relative to the default font size. This properly adapts to theme changes etc. so is recommended. Pango predefines some scales such as PANGO_SCALE_X_LARGE.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 1

The “scale-set” property

  “scale-set”                gboolean

Whether this tag scales the font size by a factor.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “size” property

  “size”                     int

Font size in Pango units.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “size-points” property

  “size-points”              double

Font size in points.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 0

The “size-set” property

  “size-set”                 gboolean

Whether this tag affects the font size.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “stretch” property

  “stretch”                  PangoStretch

Font stretch as a PangoStretch, e.g. PANGO_STRETCH_CONDENSED.

Owner: GtkTextTag

Flags: Read / Write

Default value: PANGO_STRETCH_NORMAL

The “stretch-set” property

  “stretch-set”              gboolean

Whether this tag affects the font stretch.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “strikethrough” property

  “strikethrough”            gboolean

Whether to strike through the text.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “strikethrough-rgba” property

  “strikethrough-rgba”       GdkRGBA *

This property modifies the color of strikeouts. If not set, strikeouts will use the forground color.

Owner: GtkTextTag

Flags: Read / Write

Since: 3.16

The “strikethrough-rgba-set” property

  “strikethrough-rgba-set”   gboolean

If the “strikethrough-rgba” property has been set.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

Since: 3.16

The “strikethrough-set” property

  “strikethrough-set”        gboolean

Whether this tag affects strikethrough.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “style” property

  “style”                    PangoStyle

Font style as a PangoStyle, e.g. PANGO_STYLE_ITALIC.

Owner: GtkTextTag

Flags: Read / Write

Default value: PANGO_STYLE_NORMAL

The “style-set” property

  “style-set”                gboolean

Whether this tag affects the font style.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “tabs” property

  “tabs”                     PangoTabArray *

Custom tabs for this text.

Owner: GtkTextTag

Flags: Read / Write

The “tabs-set” property

  “tabs-set”                 gboolean

Whether this tag affects tabs.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “underline” property

  “underline”                PangoUnderline

Style of underline for this text.

Owner: GtkTextTag

Flags: Read / Write

Default value: PANGO_UNDERLINE_NONE

The “underline-rgba” property

  “underline-rgba”           GdkRGBA *

This property modifies the color of underlines. If not set, underlines will use the forground color.

If “underline” is set to PANGO_UNDERLINE_ERROR, an alternate color may be applied instead of the foreground. Setting this property will always override those defaults.

Owner: GtkTextTag

Flags: Read / Write

Since: 3.16

The “underline-rgba-set” property

  “underline-rgba-set”       gboolean

If the “underline-rgba” property has been set.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

Since: 3.16

The “underline-set” property

  “underline-set”            gboolean

Whether this tag affects underlining.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “variant” property

  “variant”                  PangoVariant

Font variant as a PangoVariant, e.g. PANGO_VARIANT_SMALL_CAPS.

Owner: GtkTextTag

Flags: Read / Write

Default value: PANGO_VARIANT_NORMAL

The “variant-set” property

  “variant-set”              gboolean

Whether this tag affects the font variant.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “weight” property

  “weight”                   int

Font weight as an integer, see predefined values in PangoWeight; for example, PANGO_WEIGHT_BOLD.

Owner: GtkTextTag

Flags: Read / Write

Allowed values: >= 0

Default value: 400

The “weight-set” property

  “weight-set”               gboolean

Whether this tag affects the font weight.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “wrap-mode” property

  “wrap-mode”                GtkWrapMode

Whether to wrap lines never, at word boundaries, or at character boundaries.

Owner: GtkTextTag

Flags: Read / Write

Default value: GTK_WRAP_NONE

The “wrap-mode-set” property

  “wrap-mode-set”            gboolean

Whether this tag affects line wrap mode.

Owner: GtkTextTag

Flags: Read / Write

Default value: FALSE

The “event” signal

gboolean
user_function (GtkTextTag  *tag,
               GObject     *object,
               GdkEvent    *event,
               GtkTextIter *iter,
               gpointer     user_data)

The ::event signal is emitted when an event occurs on a region of the buffer marked with this tag.

Flags: Run Last