1 #ifndef __GTK_TEXT_TAG_H__
2 #define __GTK_TEXT_TAG_H__
4 #include <glib-object.h>
6 #include <gtk/gtkenums.h>
8 /* Not needed, retained for compatibility -Yosh */
9 #include <gtk/gtkobject.h>
13 typedef struct _GtkTextIter GtkTextIter;
14 typedef struct _GtkTextTagTable GtkTextTagTable;
16 typedef struct _GtkTextAttributes GtkTextAttributes;
18 #define GTK_TYPE_TEXT_TAG (gtk_text_tag_get_type ())
19 #define GTK_TEXT_TAG(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_TAG, GtkTextTag))
20 #define GTK_TEXT_TAG_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_TAG, GtkTextTagClass))
21 #define GTK_IS_TEXT_TAG(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT_TAG))
22 #define GTK_IS_TEXT_TAG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_TAG))
23 #define GTK_TEXT_TAG_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_TAG, GtkTextTagClass))
25 #define GTK_TYPE_TEXT_ATTRIBUTES (gtk_text_attributes_get_type ())
27 typedef struct _GtkTextTag GtkTextTag;
28 typedef struct _GtkTextTagClass GtkTextTagClass;
32 GObject parent_instance;
34 GtkTextTagTable *table;
36 char *name; /* Name of this tag. This field is actually
37 * a pointer to the key from the entry in
38 * tkxt->tagTable, so it needn't be freed
40 int priority; /* Priority of this tag within widget. 0
41 * means lowest priority. Exactly one tag
42 * has each integer value between 0 and
45 * Information for displaying text with this tag. The information
46 * belows acts as an override on information specified by lower-priority
47 * tags. If no value is specified, then the next-lower-priority tag
48 * on the text determins the value. The text widget itself provides
49 * defaults if no tag specifies an override.
52 GtkTextAttributes *values;
54 /* Flags for whether a given value is set; if a value is unset, then
55 * this tag does not affect it.
57 guint bg_color_set : 1;
58 guint bg_stipple_set : 1;
59 guint fg_color_set : 1;
61 guint fg_stipple_set : 1;
62 guint justification_set : 1;
63 guint left_margin_set : 1;
66 guint strikethrough_set : 1;
67 guint right_margin_set : 1;
68 guint pixels_above_lines_set : 1;
69 guint pixels_below_lines_set : 1;
70 guint pixels_inside_wrap_set : 1;
72 guint underline_set : 1;
73 guint wrap_mode_set : 1;
74 guint bg_full_height_set : 1;
75 guint invisible_set : 1;
76 guint editable_set : 1;
77 guint language_set : 1;
83 struct _GtkTextTagClass
85 GObjectClass parent_class;
87 gboolean (* event) (GtkTextTag *tag,
88 GObject *event_object, /* widget, canvas item, whatever */
89 GdkEvent *event, /* the event itself */
90 const GtkTextIter *iter); /* location of event in buffer */
92 /* Padding for future expansion */
93 void (*_gtk_reserved1) (void);
94 void (*_gtk_reserved2) (void);
95 void (*_gtk_reserved3) (void);
96 void (*_gtk_reserved4) (void);
99 GType gtk_text_tag_get_type (void) G_GNUC_CONST;
100 GtkTextTag *gtk_text_tag_new (const gchar *name);
101 gint gtk_text_tag_get_priority (GtkTextTag *tag);
102 void gtk_text_tag_set_priority (GtkTextTag *tag,
104 gboolean gtk_text_tag_event (GtkTextTag *tag,
105 GObject *event_object,
107 const GtkTextIter *iter);
110 * Style object created by folding a set of tags together
113 typedef struct _GtkTextAppearance GtkTextAppearance;
115 struct _GtkTextAppearance
120 GdkBitmap *bg_stipple;
121 GdkBitmap *fg_stipple;
123 /* super/subscript rise, can be negative */
127 /* I'm not sure this can really be used without breaking some things
128 * an app might do :-/
133 guint underline : 4; /* PangoUnderline */
134 guint strikethrough : 1;
136 /* Whether to use background-related values; this is irrelevant for
137 * the values struct when in a tag, but is used for the composite
138 * values struct; it's true if any of the tags being composited
139 * had background stuff set.
143 /* These are only used when we are actually laying out and rendering
144 * a paragraph; not when a GtkTextAppearance is part of a
147 guint inside_selection : 1;
157 struct _GtkTextAttributes
163 GtkTextAppearance appearance;
165 GtkJustification justification;
166 GtkTextDirection direction;
168 /* Individual chunks of this can be set/unset as a group */
169 PangoFontDescription *font;
179 gint pixels_above_lines;
181 gint pixels_below_lines;
183 gint pixels_inside_wrap;
187 GtkWrapMode wrap_mode; /* How to handle wrap-around for this tag.
188 * Must be GTK_WRAPMODE_CHAR,
189 * GTK_WRAPMODE_NONE, GTK_WRAPMODE_WORD
192 PangoLanguage *language;
195 /* I'm not sure this can really be used without breaking some things
196 * an app might do :-/
204 /* Background is fit to full line height rather than
205 * baseline +/- ascent/descent (font height)
207 guint bg_full_height : 1;
209 /* can edit this text */
212 /* colors are allocated etc. */
222 GtkTextAttributes* gtk_text_attributes_new (void);
223 GtkTextAttributes* gtk_text_attributes_copy (GtkTextAttributes *src);
224 void gtk_text_attributes_copy_values (GtkTextAttributes *src,
225 GtkTextAttributes *dest);
226 void gtk_text_attributes_unref (GtkTextAttributes *values);
227 void gtk_text_attributes_ref (GtkTextAttributes *values);
229 GType gtk_text_attributes_get_type (void) G_GNUC_CONST;