GtkTextTag

typedef struct _GtkTextTag GtkTextTag;

enum GtkWrapMode

typedef enum
{
  GTK_WRAP_NONE,
  GTK_WRAP_CHAR,
  GTK_WRAP_WORD,
  GTK_WRAP_WORD_CHAR
} GtkWrapMode;

Describes a type of line wrapping.

GtkTextAttributes

typedef struct {
  GtkTextAppearance appearance;

  GtkJustification justification;
  GtkTextDirection direction;

  /* Individual chunks of this can be set/unset as a group */
  PangoFontDescription *font;

  gdouble font_scale;
  
  gint left_margin;

  gint indent;  

  gint right_margin;

  gint pixels_above_lines;

  gint pixels_below_lines;

  gint pixels_inside_wrap;

  PangoTabArray *tabs;

  GtkWrapMode wrap_mode;        /* How to handle wrap-around for this tag.
                                 * Must be GTK_WRAPMODE_CHAR,
                                 * GTK_WRAPMODE_NONE, GTK_WRAPMODE_WORD
                                 */

  PangoLanguage *language;

  /* hide the text  */
  guint invisible : 1;

  /* Background is fit to full line height rather than
   * baseline +/- ascent/descent (font height)
   */
  guint bg_full_height : 1;

  /* can edit this text */
  guint editable : 1;

  /* colors are allocated etc. */
  guint realized : 1;
} GtkTextAttributes;

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.

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 are 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.

GtkTextAppearance

typedef struct {
  GdkColor bg_color;
  GdkColor fg_color;
  GdkBitmap *bg_stipple;
  GdkBitmap *fg_stipple;

  /* 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;
} GtkTextAppearance;

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.

The "accumulative-margin" property

  "accumulative-margin"      gboolean              : Read / Write

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).

Default value: FALSE

Since 2.12

The "background" property

  "background"               gchar*                : Write

Background color as a string.

Default value: NULL

The "background-full-height" property

  "background-full-height"   gboolean              : Read / Write

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

Default value: FALSE

The "background-full-height-set" property

  "background-full-height-set" gboolean              : Read / Write

Whether this tag affects background height.

Default value: FALSE

The "background-gdk" property

  "background-gdk"           GdkColor*             : Read / Write

Background color as a (possibly unallocated) GdkColor.

The "background-set" property

  "background-set"           gboolean              : Read / Write

Whether this tag affects the background color.

Default value: FALSE

The "background-stipple" property

  "background-stipple"       GdkPixmap*            : Read / Write

Bitmap to use as a mask when drawing the text background.

The "background-stipple-set" property

  "background-stipple-set"   gboolean              : Read / Write

Whether this tag affects the background stipple.

Default value: FALSE

The "direction" property

  "direction"                GtkTextDirection      : Read / Write

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

Default value: GTK_TEXT_DIR_NONE

The "editable" property

  "editable"                 gboolean              : Read / Write

Whether the text can be modified by the user.

Default value: TRUE

The "editable-set" property

  "editable-set"             gboolean              : Read / Write

Whether this tag affects text editability.

Default value: FALSE

The "family" property

  "family"                   gchar*                : Read / Write

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

Default value: NULL

The "family-set" property

  "family-set"               gboolean              : Read / Write

Whether this tag affects the font family.

Default value: FALSE

The "font" property

  "font"                     gchar*                : Read / Write

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

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

Default value: NULL

The "font-desc" property

  "font-desc"                PangoFontDescription*  : Read / Write

Font description as a PangoFontDescription struct.

The "foreground" property

  "foreground"               gchar*                : Write

Foreground color as a string.

Default value: NULL

The "foreground-gdk" property

  "foreground-gdk"           GdkColor*             : Read / Write

Foreground color as a (possibly unallocated) GdkColor.

The "foreground-set" property

  "foreground-set"           gboolean              : Read / Write

Whether this tag affects the foreground color.

Default value: FALSE

The "foreground-stipple" property

  "foreground-stipple"       GdkPixmap*            : Read / Write

Bitmap to use as a mask when drawing the text foreground.

The "foreground-stipple-set" property

  "foreground-stipple-set"   gboolean              : Read / Write

Whether this tag affects the foreground stipple.

Default value: FALSE

The "indent" property

  "indent"                   gint                  : Read / Write

Amount to indent the paragraph, in pixels.

Default value: 0

The "indent-set" property

  "indent-set"               gboolean              : Read / Write

Whether this tag affects indentation.

Default value: FALSE

The "invisible" property

  "invisible"                gboolean              : Read / Write

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.

Default value: FALSE

Since 2.8

The "invisible-set" property

  "invisible-set"            gboolean              : Read / Write

Whether this tag affects text visibility.

Default value: FALSE

The "justification" property

  "justification"            GtkJustification      : Read / Write

Left, right, or center justification.

Default value: GTK_JUSTIFY_LEFT

The "justification-set" property

  "justification-set"        gboolean              : Read / Write

Whether this tag affects paragraph justification.

Default value: FALSE

The "language" property

  "language"                 gchar*                : Read / Write

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().

Default value: NULL

The "language-set" property

  "language-set"             gboolean              : Read / Write

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

Default value: FALSE

The "left-margin" property

  "left-margin"              gint                  : Read / Write

Width of the left margin in pixels.

Allowed values: >= 0

Default value: 0

The "left-margin-set" property

  "left-margin-set"          gboolean              : Read / Write

Whether this tag affects the left margin.

Default value: FALSE

The "name" property

  "name"                     gchar*                : Read / Write / Construct Only

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

Default value: NULL

The "paragraph-background" property

  "paragraph-background"     gchar*                : Write

The paragraph background color as a string.

Default value: NULL

Since 2.8

The "paragraph-background-gdk" property

  "paragraph-background-gdk" GdkColor*             : Read / Write

The paragraph background color as a as a (possibly unallocated) GdkColor.

Since 2.8

The "paragraph-background-set" property

  "paragraph-background-set" gboolean              : Read / Write

Whether this tag affects the paragraph background color.

Default value: FALSE

The "pixels-above-lines" property

  "pixels-above-lines"       gint                  : Read / Write

Pixels of blank space above paragraphs.

Allowed values: >= 0

Default value: 0

The "pixels-above-lines-set" property

  "pixels-above-lines-set"   gboolean              : Read / Write

Whether this tag affects the number of pixels above lines.

Default value: FALSE

The "pixels-below-lines" property

  "pixels-below-lines"       gint                  : Read / Write

Pixels of blank space below paragraphs.

Allowed values: >= 0

Default value: 0

The "pixels-below-lines-set" property

  "pixels-below-lines-set"   gboolean              : Read / Write

Whether this tag affects the number of pixels above lines.

Default value: FALSE

The "pixels-inside-wrap" property

  "pixels-inside-wrap"       gint                  : Read / Write

Pixels of blank space between wrapped lines in a paragraph.

Allowed values: >= 0

Default value: 0

The "pixels-inside-wrap-set" property

  "pixels-inside-wrap-set"   gboolean              : Read / Write

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

Default value: FALSE

The "right-margin" property

  "right-margin"             gint                  : Read / Write

Width of the right margin in pixels.

Allowed values: >= 0

Default value: 0

The "right-margin-set" property

  "right-margin-set"         gboolean              : Read / Write

Whether this tag affects the right margin.

Default value: FALSE

The "rise" property

  "rise"                     gint                  : Read / Write

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

Default value: 0

The "rise-set" property

  "rise-set"                 gboolean              : Read / Write

Whether this tag affects the rise.

Default value: FALSE

The "scale" property

  "scale"                    gdouble               : Read / Write

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.

Allowed values: >= 0

Default value: 1

The "scale-set" property

  "scale-set"                gboolean              : Read / Write

Whether this tag scales the font size by a factor.

Default value: FALSE

The "size" property

  "size"                     gint                  : Read / Write

Font size in Pango units.

Allowed values: >= 0

Default value: 0

The "size-points" property

  "size-points"              gdouble               : Read / Write

Font size in points.

Allowed values: >= 0

Default value: 0

The "size-set" property

  "size-set"                 gboolean              : Read / Write

Whether this tag affects the font size.

Default value: FALSE

The "stretch" property

  "stretch"                  PangoStretch          : Read / Write

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

Default value: PANGO_STRETCH_NORMAL

The "stretch-set" property

  "stretch-set"              gboolean              : Read / Write

Whether this tag affects the font stretch.

Default value: FALSE

The "strikethrough" property

  "strikethrough"            gboolean              : Read / Write

Whether to strike through the text.

Default value: FALSE

The "strikethrough-set" property

  "strikethrough-set"        gboolean              : Read / Write

Whether this tag affects strikethrough.

Default value: FALSE

The "style" property

  "style"                    PangoStyle            : Read / Write

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

Default value: PANGO_STYLE_NORMAL

The "style-set" property

  "style-set"                gboolean              : Read / Write

Whether this tag affects the font style.

Default value: FALSE

The "tabs" property

  "tabs"                     PangoTabArray*        : Read / Write

Custom tabs for this text.

The "tabs-set" property

  "tabs-set"                 gboolean              : Read / Write

Whether this tag affects tabs.

Default value: FALSE

The "underline" property

  "underline"                PangoUnderline        : Read / Write

Style of underline for this text.

Default value: PANGO_UNDERLINE_NONE

The "underline-set" property

  "underline-set"            gboolean              : Read / Write

Whether this tag affects underlining.

Default value: FALSE

The "variant" property

  "variant"                  PangoVariant          : Read / Write

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

Default value: PANGO_VARIANT_NORMAL

The "variant-set" property

  "variant-set"              gboolean              : Read / Write

Whether this tag affects the font variant.

Default value: FALSE

The "weight" property

  "weight"                   gint                  : Read / Write

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

Allowed values: >= 0

Default value: 400

The "weight-set" property

  "weight-set"               gboolean              : Read / Write

Whether this tag affects the font weight.

Default value: FALSE

The "wrap-mode" property

  "wrap-mode"                GtkWrapMode           : Read / Write

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

Default value: GTK_WRAP_NONE

The "wrap-mode-set" property

  "wrap-mode-set"            gboolean              : Read / Write

Whether this tag affects line wrap mode.

Default value: FALSE

The "event" signal

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

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