gtk2/gtk/gtktexttag.c

2056 lines
67 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* gtktexttag.c - text tag object
*
* Copyright (c) 1992-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
* Copyright (c) 2000 Red Hat, Inc.
* Tk -> Gtk port by Havoc Pennington <hp@redhat.com>
*
* This software is copyrighted by the Regents of the University of
* California, Sun Microsystems, Inc., and other parties. The
* following terms apply to all files associated with the software
* unless explicitly disclaimed in individual files.
*
* The authors hereby grant permission to use, copy, modify,
* distribute, and license this software and its documentation for any
* purpose, provided that existing copyright notices are retained in
* all copies and that this notice is included verbatim in any
* distributions. No written agreement, license, or royalty fee is
* required for any of the authorized uses. Modifications to this
* software may be copyrighted by their authors and need not follow
* the licensing terms described here, provided that the new terms are
* clearly indicated on the first page of each file where they apply.
*
* IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY
* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
* DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION,
* OR ANY DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
* THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
* NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
* AND THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
* MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
* GOVERNMENT USE: If you are acquiring this software on behalf of the
* U.S. government, the Government shall have only "Restricted Rights"
* in the software and related documentation as defined in the Federal
* Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you
* are acquiring the software on behalf of the Department of Defense,
* the software shall be classified as "Commercial Computer Software"
* and the Government shall have only "Restricted Rights" as defined
* in Clause 252.227-7013 (c) (1) of DFARs. Notwithstanding the
* foregoing, the authors grant the U.S. Government and others acting
* in its behalf permission to use and distribute the software in
* accordance with the terms specified in this license.
*
*/
/**
* SECTION:gtktexttag
* @Title: GtkTextTag
* @Short_description: A tag that can be applied to text in a GtkTextBuffer
*
* You may wish to begin by reading the
* [text widget conceptual overview][TextWidget]
* which gives an overview of all the objects and
* data types related to the text widget and how they work together.
*
* Tags should be in the #GtkTextTagTable for a given #GtkTextBuffer
* before using them with that buffer.
*
* gtk_text_buffer_create_tag() is the best way to create tags.
* See “gtk3-demo” for numerous examples.
*
* For each property of #GtkTextTag, there is a “set” property, e.g.
* “font-set” corresponds to “font”. These “set” properties reflect
* whether a property has been set or not.
* They are maintained by GTK+ and you should not set them independently.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include "gtktexttag.h"
#include "gtktexttypes.h"
#include "gtktexttagtable.h"
#include "gtkintl.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtktypebuiltins.h"
enum {
EVENT,
LAST_SIGNAL
};
enum {
PROP_0,
/* Construct args */
PROP_NAME,
/* Style args */
PROP_BACKGROUND,
PROP_FOREGROUND,
PROP_BACKGROUND_GDK,
PROP_FOREGROUND_GDK,
PROP_BACKGROUND_RGBA,
PROP_FOREGROUND_RGBA,
PROP_FONT,
PROP_FONT_DESC,
PROP_FAMILY,
PROP_STYLE,
PROP_VARIANT,
PROP_WEIGHT,
PROP_STRETCH,
PROP_SIZE,
PROP_SIZE_POINTS,
PROP_SCALE,
PROP_PIXELS_ABOVE_LINES,
PROP_PIXELS_BELOW_LINES,
PROP_PIXELS_INSIDE_WRAP,
PROP_EDITABLE,
PROP_WRAP_MODE,
PROP_JUSTIFICATION,
PROP_DIRECTION,
PROP_LEFT_MARGIN,
PROP_INDENT,
PROP_STRIKETHROUGH,
PROP_RIGHT_MARGIN,
PROP_UNDERLINE,
PROP_RISE,
PROP_BACKGROUND_FULL_HEIGHT,
PROP_LANGUAGE,
PROP_TABS,
PROP_INVISIBLE,
PROP_PARAGRAPH_BACKGROUND,
PROP_PARAGRAPH_BACKGROUND_GDK,
PROP_PARAGRAPH_BACKGROUND_RGBA,
/* Behavior args */
PROP_ACCUMULATIVE_MARGIN,
/* Whether-a-style-arg-is-set args */
PROP_BACKGROUND_SET,
PROP_FOREGROUND_SET,
PROP_FAMILY_SET,
PROP_STYLE_SET,
PROP_VARIANT_SET,
PROP_WEIGHT_SET,
PROP_STRETCH_SET,
PROP_SIZE_SET,
PROP_SCALE_SET,
PROP_PIXELS_ABOVE_LINES_SET,
PROP_PIXELS_BELOW_LINES_SET,
PROP_PIXELS_INSIDE_WRAP_SET,
PROP_EDITABLE_SET,
PROP_WRAP_MODE_SET,
PROP_JUSTIFICATION_SET,
PROP_LEFT_MARGIN_SET,
PROP_INDENT_SET,
PROP_STRIKETHROUGH_SET,
PROP_RIGHT_MARGIN_SET,
PROP_UNDERLINE_SET,
PROP_RISE_SET,
PROP_BACKGROUND_FULL_HEIGHT_SET,
PROP_LANGUAGE_SET,
PROP_TABS_SET,
PROP_INVISIBLE_SET,
PROP_PARAGRAPH_BACKGROUND_SET,
LAST_ARG
};
static void gtk_text_tag_finalize (GObject *object);
static void gtk_text_tag_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_text_tag_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_PRIVATE (GtkTextTag, gtk_text_tag, G_TYPE_OBJECT)
static void
gtk_text_tag_class_init (GtkTextTagClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = gtk_text_tag_set_property;
object_class->get_property = gtk_text_tag_get_property;
object_class->finalize = gtk_text_tag_finalize;
/* Construct */
g_object_class_install_property (object_class,
PROP_NAME,
g_param_spec_string ("name",
P_("Tag name"),
P_("Name used to refer to the text tag. NULL for anonymous tags"),
NULL,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
/* Style args */
g_object_class_install_property (object_class,
PROP_BACKGROUND,
g_param_spec_string ("background",
P_("Background color name"),
P_("Background color as a string"),
NULL,
GTK_PARAM_WRITABLE));
/**
* GtkTextTag:background-gdk:
*
* Background color as a #GdkColor.
*
* Deprecated: 3.4: Use #GtkTextTag:background-rgba instead.
*/
g_object_class_install_property (object_class,
PROP_BACKGROUND_GDK,
g_param_spec_boxed ("background-gdk",
P_("Background color"),
P_("Background color as a GdkColor"),
GDK_TYPE_COLOR,
GTK_PARAM_READWRITE | G_PARAM_DEPRECATED));
/**
* GtkTextTag:background-rgba:
*
* Background color as a #GdkRGBA.
*
* Since: 3.2
*/
g_object_class_install_property (object_class,
PROP_BACKGROUND_RGBA,
g_param_spec_boxed ("background-rgba",
P_("Background RGBA"),
P_("Background color as a GdkRGBA"),
GDK_TYPE_RGBA,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_BACKGROUND_FULL_HEIGHT,
g_param_spec_boolean ("background-full-height",
P_("Background full height"),
P_("Whether the background color fills the entire line height or only the height of the tagged characters"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_FOREGROUND,
g_param_spec_string ("foreground",
P_("Foreground color name"),
P_("Foreground color as a string"),
NULL,
GTK_PARAM_WRITABLE));
/**
* GtkTextTag:foreground-gdk:
*
* Foreground color as a #GdkColor.
*
* Deprecated: 3.4: Use #GtkTextTag:foreground-rgba instead.
*/
g_object_class_install_property (object_class,
PROP_FOREGROUND_GDK,
g_param_spec_boxed ("foreground-gdk",
P_("Foreground color"),
P_("Foreground color as a GdkColor"),
GDK_TYPE_COLOR,
GTK_PARAM_READWRITE | G_PARAM_DEPRECATED));
/**
* GtkTextTag:foreground-rgba:
*
* Foreground color as a #GdkRGBA.
*
* Since: 3.2
*/
g_object_class_install_property (object_class,
PROP_FOREGROUND_RGBA,
g_param_spec_boxed ("foreground-rgba",
P_("Foreground RGBA"),
P_("Foreground color as a GdkRGBA"),
GDK_TYPE_RGBA,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_DIRECTION,
g_param_spec_enum ("direction",
P_("Text direction"),
P_("Text direction, e.g. right-to-left or left-to-right"),
GTK_TYPE_TEXT_DIRECTION,
GTK_TEXT_DIR_NONE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_EDITABLE,
g_param_spec_boolean ("editable",
P_("Editable"),
P_("Whether the text can be modified by the user"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:font:
*
* Font description as string, e.g. \"Sans Italic 12\".
*
* Note that the initial value of this property depends on
* the internals of #PangoFontDescription.
*/
g_object_class_install_property (object_class,
PROP_FONT,
g_param_spec_string ("font",
P_("Font"),
P_("Font description as a string, e.g. \"Sans Italic 12\""),
NULL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_FONT_DESC,
g_param_spec_boxed ("font-desc",
P_("Font"),
P_("Font description as a PangoFontDescription struct"),
PANGO_TYPE_FONT_DESCRIPTION,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_FAMILY,
g_param_spec_string ("family",
P_("Font family"),
P_("Name of the font family, e.g. Sans, Helvetica, Times, Monospace"),
NULL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_STYLE,
g_param_spec_enum ("style",
P_("Font style"),
P_("Font style as a PangoStyle, e.g. PANGO_STYLE_ITALIC"),
PANGO_TYPE_STYLE,
PANGO_STYLE_NORMAL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_VARIANT,
g_param_spec_enum ("variant",
P_("Font variant"),
P_("Font variant as a PangoVariant, e.g. PANGO_VARIANT_SMALL_CAPS"),
PANGO_TYPE_VARIANT,
PANGO_VARIANT_NORMAL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_WEIGHT,
g_param_spec_int ("weight",
P_("Font weight"),
P_("Font weight as an integer, see predefined values in PangoWeight; for example, PANGO_WEIGHT_BOLD"),
0,
G_MAXINT,
PANGO_WEIGHT_NORMAL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_STRETCH,
g_param_spec_enum ("stretch",
P_("Font stretch"),
P_("Font stretch as a PangoStretch, e.g. PANGO_STRETCH_CONDENSED"),
PANGO_TYPE_STRETCH,
PANGO_STRETCH_NORMAL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_SIZE,
g_param_spec_int ("size",
P_("Font size"),
P_("Font size in Pango units"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_SCALE,
g_param_spec_double ("scale",
P_("Font scale"),
P_("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"),
0.0,
G_MAXDOUBLE,
1.0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_SIZE_POINTS,
g_param_spec_double ("size-points",
P_("Font points"),
P_("Font size in points"),
0.0,
G_MAXDOUBLE,
0.0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_JUSTIFICATION,
g_param_spec_enum ("justification",
P_("Justification"),
P_("Left, right, or center justification"),
GTK_TYPE_JUSTIFICATION,
GTK_JUSTIFY_LEFT,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:language:
*
* 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().
*/
g_object_class_install_property (object_class,
PROP_LANGUAGE,
g_param_spec_string ("language",
P_("Language"),
P_("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."),
NULL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_LEFT_MARGIN,
g_param_spec_int ("left-margin",
P_("Left margin"),
P_("Width of the left margin in pixels"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_RIGHT_MARGIN,
g_param_spec_int ("right-margin",
P_("Right margin"),
P_("Width of the right margin in pixels"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_INDENT,
g_param_spec_int ("indent",
P_("Indent"),
P_("Amount to indent the paragraph, in pixels"),
G_MININT,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_RISE,
g_param_spec_int ("rise",
P_("Rise"),
P_("Offset of text above the baseline (below the baseline if rise is negative) in Pango units"),
G_MININT,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_PIXELS_ABOVE_LINES,
g_param_spec_int ("pixels-above-lines",
P_("Pixels above lines"),
P_("Pixels of blank space above paragraphs"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_PIXELS_BELOW_LINES,
g_param_spec_int ("pixels-below-lines",
P_("Pixels below lines"),
P_("Pixels of blank space below paragraphs"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_PIXELS_INSIDE_WRAP,
g_param_spec_int ("pixels-inside-wrap",
P_("Pixels inside wrap"),
P_("Pixels of blank space between wrapped lines in a paragraph"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_STRIKETHROUGH,
g_param_spec_boolean ("strikethrough",
P_("Strikethrough"),
P_("Whether to strike through the text"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_UNDERLINE,
g_param_spec_enum ("underline",
P_("Underline"),
P_("Style of underline for this text"),
PANGO_TYPE_UNDERLINE,
PANGO_UNDERLINE_NONE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_WRAP_MODE,
g_param_spec_enum ("wrap-mode",
P_("Wrap mode"),
P_("Whether to wrap lines never, at word boundaries, or at character boundaries"),
GTK_TYPE_WRAP_MODE,
GTK_WRAP_NONE,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_TABS,
g_param_spec_boxed ("tabs",
P_("Tabs"),
P_("Custom tabs for this text"),
PANGO_TYPE_TAB_ARRAY,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:invisible:
*
* 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.
*
* Since: 2.8
*/
g_object_class_install_property (object_class,
PROP_INVISIBLE,
g_param_spec_boolean ("invisible",
P_("Invisible"),
P_("Whether this text is hidden."),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:paragraph-background:
*
* The paragraph background color as a string.
*
* Since: 2.8
*/
g_object_class_install_property (object_class,
PROP_PARAGRAPH_BACKGROUND,
g_param_spec_string ("paragraph-background",
P_("Paragraph background color name"),
P_("Paragraph background color as a string"),
NULL,
GTK_PARAM_WRITABLE));
/**
* GtkTextTag:paragraph-background-gdk:
*
* The paragraph background color as a #GdkColor.
*
* Since: 2.8
*
* Deprecated: 3.4: Use #GtkTextTag:paragraph-background-rgba instead.
*/
g_object_class_install_property (object_class,
PROP_PARAGRAPH_BACKGROUND_GDK,
g_param_spec_boxed ("paragraph-background-gdk",
P_("Paragraph background color"),
P_("Paragraph background color as a GdkColor"),
GDK_TYPE_COLOR,
GTK_PARAM_READWRITE | G_PARAM_DEPRECATED));
/**
* GtkTextTag:paragraph-background-rgba:
*
* The paragraph background color as a #GdkRGBA.
*
* Since: 3.2
*/
g_object_class_install_property (object_class,
PROP_PARAGRAPH_BACKGROUND_RGBA,
g_param_spec_boxed ("paragraph-background-rgba",
P_("Paragraph background RGBA"),
P_("Paragraph background RGBA as a GdkRGBA"),
GDK_TYPE_RGBA,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:accumulative-margin:
*
* 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).
*
* Since: 2.12
*/
g_object_class_install_property (object_class,
PROP_ACCUMULATIVE_MARGIN,
g_param_spec_boolean ("accumulative-margin",
P_("Margin Accumulates"),
P_("Whether left and right margins accumulate."),
FALSE,
GTK_PARAM_READWRITE));
/* Style props are set or not */
#define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (object_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))
ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
P_("Background set"),
P_("Whether this tag affects the background color"));
ADD_SET_PROP ("background-full-height-set", PROP_BACKGROUND_FULL_HEIGHT_SET,
P_("Background full height set"),
P_("Whether this tag affects background height"));
ADD_SET_PROP ("foreground-set", PROP_FOREGROUND_SET,
P_("Foreground set"),
P_("Whether this tag affects the foreground color"));
ADD_SET_PROP ("editable-set", PROP_EDITABLE_SET,
P_("Editability set"),
P_("Whether this tag affects text editability"));
ADD_SET_PROP ("family-set", PROP_FAMILY_SET,
P_("Font family set"),
P_("Whether this tag affects the font family"));
ADD_SET_PROP ("style-set", PROP_STYLE_SET,
P_("Font style set"),
P_("Whether this tag affects the font style"));
ADD_SET_PROP ("variant-set", PROP_VARIANT_SET,
P_("Font variant set"),
P_("Whether this tag affects the font variant"));
ADD_SET_PROP ("weight-set", PROP_WEIGHT_SET,
P_("Font weight set"),
P_("Whether this tag affects the font weight"));
ADD_SET_PROP ("stretch-set", PROP_STRETCH_SET,
P_("Font stretch set"),
P_("Whether this tag affects the font stretch"));
ADD_SET_PROP ("size-set", PROP_SIZE_SET,
P_("Font size set"),
P_("Whether this tag affects the font size"));
ADD_SET_PROP ("scale-set", PROP_SCALE_SET,
P_("Font scale set"),
P_("Whether this tag scales the font size by a factor"));
ADD_SET_PROP ("justification-set", PROP_JUSTIFICATION_SET,
P_("Justification set"),
P_("Whether this tag affects paragraph justification"));
ADD_SET_PROP ("language-set", PROP_LANGUAGE_SET,
P_("Language set"),
P_("Whether this tag affects the language the text is rendered as"));
ADD_SET_PROP ("left-margin-set", PROP_LEFT_MARGIN_SET,
P_("Left margin set"),
P_("Whether this tag affects the left margin"));
ADD_SET_PROP ("indent-set", PROP_INDENT_SET,
P_("Indent set"),
P_("Whether this tag affects indentation"));
ADD_SET_PROP ("rise-set", PROP_RISE_SET,
P_("Rise set"),
P_("Whether this tag affects the rise"));
ADD_SET_PROP ("pixels-above-lines-set", PROP_PIXELS_ABOVE_LINES_SET,
P_("Pixels above lines set"),
P_("Whether this tag affects the number of pixels above lines"));
ADD_SET_PROP ("pixels-below-lines-set", PROP_PIXELS_BELOW_LINES_SET,
P_("Pixels below lines set"),
P_("Whether this tag affects the number of pixels above lines"));
ADD_SET_PROP ("pixels-inside-wrap-set", PROP_PIXELS_INSIDE_WRAP_SET,
P_("Pixels inside wrap set"),
P_("Whether this tag affects the number of pixels between wrapped lines"));
ADD_SET_PROP ("strikethrough-set", PROP_STRIKETHROUGH_SET,
P_("Strikethrough set"),
P_("Whether this tag affects strikethrough"));
ADD_SET_PROP ("right-margin-set", PROP_RIGHT_MARGIN_SET,
P_("Right margin set"),
P_("Whether this tag affects the right margin"));
ADD_SET_PROP ("underline-set", PROP_UNDERLINE_SET,
P_("Underline set"),
P_("Whether this tag affects underlining"));
ADD_SET_PROP ("wrap-mode-set", PROP_WRAP_MODE_SET,
P_("Wrap mode set"),
P_("Whether this tag affects line wrap mode"));
ADD_SET_PROP ("tabs-set", PROP_TABS_SET,
P_("Tabs set"),
P_("Whether this tag affects tabs"));
ADD_SET_PROP ("invisible-set", PROP_INVISIBLE_SET,
P_("Invisible set"),
P_("Whether this tag affects text visibility"));
ADD_SET_PROP ("paragraph-background-set", PROP_PARAGRAPH_BACKGROUND_SET,
P_("Paragraph background set"),
P_("Whether this tag affects the paragraph background color"));
/**
* GtkTextTag::event:
* @tag: the #GtkTextTag on which the signal is emitted
* @object: the object the event was fired from (typically a #GtkTextView)
* @event: the event which triggered the signal
* @iter: a #GtkTextIter pointing at the location the event occured
*
* The ::event signal is emitted when an event occurs on a region of the
* buffer marked with this tag.
*
* Returns: %TRUE to stop other handlers from being invoked for the
* event. %FALSE to propagate the event further.
*/
signals[EVENT] =
g_signal_new (I_("event"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTextTagClass, event),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__OBJECT_BOXED_BOXED,
G_TYPE_BOOLEAN,
3,
G_TYPE_OBJECT,
GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE,
GTK_TYPE_TEXT_ITER);
}
static void
gtk_text_tag_init (GtkTextTag *text_tag)
{
text_tag->priv = gtk_text_tag_get_instance_private (text_tag);
text_tag->priv->values = gtk_text_attributes_new ();
}
/**
* gtk_text_tag_new:
* @name: (allow-none): tag name, or %NULL
*
* Creates a #GtkTextTag. Configure the tag using object arguments,
* i.e. using g_object_set().
*
* Return value: a new #GtkTextTag
**/
GtkTextTag*
gtk_text_tag_new (const gchar *name)
{
GtkTextTag *tag;
tag = g_object_new (GTK_TYPE_TEXT_TAG, "name", name, NULL);
return tag;
}
static void
gtk_text_tag_finalize (GObject *object)
{
GtkTextTag *text_tag = GTK_TEXT_TAG (object);
GtkTextTagPrivate *priv = text_tag->priv;
if (priv->table)
gtk_text_tag_table_remove (priv->table, text_tag);
g_assert (priv->table == NULL);
gtk_text_attributes_unref (priv->values);
priv->values = NULL;
g_free (priv->name);
priv->name = NULL;
G_OBJECT_CLASS (gtk_text_tag_parent_class)->finalize (object);
}
static void
copy_rgba_to_gdk_color (GdkRGBA *src,
GdkColor *dest)
{
dest->red = CLAMP (src->red, 0.0, 1.0) * 65535.0;
dest->green = CLAMP (src->green, 0.0, 1.0) * 65535.0;
dest->blue = CLAMP (src->blue, 0.0, 1.0) * 65535.0;
}
static void
copy_gdk_color_to_rgba (GdkColor *src,
GdkRGBA *dest)
{
dest->red = src->red / 65535.;
dest->green = src->green / 65535.;
dest->blue = src->blue / 65535.;
dest->alpha = 1;
}
static void
set_bg_rgba (GtkTextTag *tag, GdkRGBA *rgba)
{
GtkTextTagPrivate *priv = tag->priv;
if (priv->values->appearance.rgba[0])
gdk_rgba_free (priv->values->appearance.rgba[0]);
priv->values->appearance.rgba[0] = NULL;
if (rgba)
{
if (!priv->bg_color_set)
{
priv->bg_color_set = TRUE;
g_object_notify (G_OBJECT (tag), "background-set");
}
priv->values->appearance.rgba[0] = gdk_rgba_copy (rgba);
copy_rgba_to_gdk_color (rgba, &priv->values->appearance.bg_color);
}
else
{
if (priv->bg_color_set)
{
priv->bg_color_set = FALSE;
g_object_notify (G_OBJECT (tag), "background-set");
}
}
}
static void
set_fg_rgba (GtkTextTag *tag, GdkRGBA *rgba)
{
GtkTextTagPrivate *priv = tag->priv;
if (priv->values->appearance.rgba[1])
gdk_rgba_free (priv->values->appearance.rgba[1]);
priv->values->appearance.rgba[1] = NULL;
if (rgba)
{
if (!priv->fg_color_set)
{
priv->fg_color_set = TRUE;
g_object_notify (G_OBJECT (tag), "foreground-set");
}
priv->values->appearance.rgba[1] = gdk_rgba_copy (rgba);
copy_rgba_to_gdk_color (rgba, &priv->values->appearance.fg_color);
}
else
{
if (priv->fg_color_set)
{
priv->fg_color_set = FALSE;
g_object_notify (G_OBJECT (tag), "foreground-set");
}
}
}
static void
set_pg_bg_rgba (GtkTextTag *tag, GdkRGBA *rgba)
{
GtkTextTagPrivate *priv = tag->priv;
if (priv->values->pg_bg_rgba)
gdk_rgba_free (priv->values->pg_bg_rgba);
if (priv->values->pg_bg_color)
gdk_color_free (priv->values->pg_bg_color);
priv->values->pg_bg_rgba = NULL;
priv->values->pg_bg_color = NULL;
if (rgba)
{
GdkColor color = { 0, };
if (!priv->pg_bg_color_set)
{
priv->pg_bg_color_set = TRUE;
g_object_notify (G_OBJECT (tag), "paragraph-background-set");
}
priv->values->pg_bg_rgba = gdk_rgba_copy (rgba);
copy_rgba_to_gdk_color (rgba, &color);
priv->values->pg_bg_color = gdk_color_copy (&color);
}
else
{
if (priv->pg_bg_color_set)
{
priv->pg_bg_color_set = FALSE;
g_object_notify (G_OBJECT (tag), "paragraph-background-set");
}
}
}
static void
set_bg_color (GtkTextTag *tag, GdkColor *color)
{
if (color)
{
GdkRGBA rgba;
copy_gdk_color_to_rgba (color, &rgba);
set_bg_rgba (tag, &rgba);
}
else
set_bg_rgba (tag, NULL);
}
static void
set_fg_color (GtkTextTag *tag, GdkColor *color)
{
if (color)
{
GdkRGBA rgba;
copy_gdk_color_to_rgba (color, &rgba);
set_fg_rgba (tag, &rgba);
}
else
set_fg_rgba (tag, NULL);
}
static void
set_pg_bg_color (GtkTextTag *tag, GdkColor *color)
{
if (color)
{
GdkRGBA rgba;
copy_gdk_color_to_rgba (color, &rgba);
set_pg_bg_rgba (tag, &rgba);
}
else
set_pg_bg_rgba (tag, NULL);
}
static PangoFontMask
get_property_font_set_mask (guint prop_id)
{
switch (prop_id)
{
case PROP_FAMILY_SET:
return PANGO_FONT_MASK_FAMILY;
case PROP_STYLE_SET:
return PANGO_FONT_MASK_STYLE;
case PROP_VARIANT_SET:
return PANGO_FONT_MASK_VARIANT;
case PROP_WEIGHT_SET:
return PANGO_FONT_MASK_WEIGHT;
case PROP_STRETCH_SET:
return PANGO_FONT_MASK_STRETCH;
case PROP_SIZE_SET:
return PANGO_FONT_MASK_SIZE;
}
return 0;
}
static PangoFontMask
set_font_desc_fields (PangoFontDescription *desc,
PangoFontMask to_set)
{
PangoFontMask changed_mask = 0;
if (to_set & PANGO_FONT_MASK_FAMILY)
{
const char *family = pango_font_description_get_family (desc);
if (!family)
{
family = "sans";
changed_mask |= PANGO_FONT_MASK_FAMILY;
}
pango_font_description_set_family (desc, family);
}
if (to_set & PANGO_FONT_MASK_STYLE)
pango_font_description_set_style (desc, pango_font_description_get_style (desc));
if (to_set & PANGO_FONT_MASK_VARIANT)
pango_font_description_set_variant (desc, pango_font_description_get_variant (desc));
if (to_set & PANGO_FONT_MASK_WEIGHT)
pango_font_description_set_weight (desc, pango_font_description_get_weight (desc));
if (to_set & PANGO_FONT_MASK_STRETCH)
pango_font_description_set_stretch (desc, pango_font_description_get_stretch (desc));
if (to_set & PANGO_FONT_MASK_SIZE)
{
gint size = pango_font_description_get_size (desc);
if (size <= 0)
{
size = 10 * PANGO_SCALE;
changed_mask |= PANGO_FONT_MASK_SIZE;
}
pango_font_description_set_size (desc, size);
}
return changed_mask;
}
static void
notify_set_changed (GObject *object,
PangoFontMask changed_mask)
{
if (changed_mask & PANGO_FONT_MASK_FAMILY)
g_object_notify (object, "family-set");
if (changed_mask & PANGO_FONT_MASK_STYLE)
g_object_notify (object, "style-set");
if (changed_mask & PANGO_FONT_MASK_VARIANT)
g_object_notify (object, "variant-set");
if (changed_mask & PANGO_FONT_MASK_WEIGHT)
g_object_notify (object, "weight-set");
if (changed_mask & PANGO_FONT_MASK_STRETCH)
g_object_notify (object, "stretch-set");
if (changed_mask & PANGO_FONT_MASK_SIZE)
g_object_notify (object, "size-set");
}
static void
notify_fields_changed (GObject *object,
PangoFontMask changed_mask)
{
if (changed_mask & PANGO_FONT_MASK_FAMILY)
g_object_notify (object, "family");
if (changed_mask & PANGO_FONT_MASK_STYLE)
g_object_notify (object, "style");
if (changed_mask & PANGO_FONT_MASK_VARIANT)
g_object_notify (object, "variant");
if (changed_mask & PANGO_FONT_MASK_WEIGHT)
g_object_notify (object, "weight");
if (changed_mask & PANGO_FONT_MASK_STRETCH)
g_object_notify (object, "stretch");
if (changed_mask & PANGO_FONT_MASK_SIZE)
g_object_notify (object, "size");
}
static void
set_font_description (GtkTextTag *text_tag,
PangoFontDescription *font_desc)
{
GtkTextTagPrivate *priv = text_tag->priv;
GObject *object = G_OBJECT (text_tag);
PangoFontDescription *new_font_desc;
PangoFontMask old_mask, new_mask, changed_mask, set_changed_mask;
if (font_desc)
new_font_desc = pango_font_description_copy (font_desc);
else
new_font_desc = pango_font_description_new ();
if (priv->values->font)
old_mask = pango_font_description_get_set_fields (priv->values->font);
else
old_mask = 0;
new_mask = pango_font_description_get_set_fields (new_font_desc);
changed_mask = old_mask | new_mask;
set_changed_mask = old_mask ^ new_mask;
if (priv->values->font)
pango_font_description_free (priv->values->font);
priv->values->font = new_font_desc;
g_object_freeze_notify (object);
g_object_notify (object, "font-desc");
g_object_notify (object, "font");
if (changed_mask & PANGO_FONT_MASK_FAMILY)
g_object_notify (object, "family");
if (changed_mask & PANGO_FONT_MASK_STYLE)
g_object_notify (object, "style");
if (changed_mask & PANGO_FONT_MASK_VARIANT)
g_object_notify (object, "variant");
if (changed_mask & PANGO_FONT_MASK_WEIGHT)
g_object_notify (object, "weight");
if (changed_mask & PANGO_FONT_MASK_STRETCH)
g_object_notify (object, "stretch");
if (changed_mask & PANGO_FONT_MASK_SIZE)
{
g_object_notify (object, "size");
g_object_notify (object, "size-points");
}
notify_set_changed (object, set_changed_mask);
g_object_thaw_notify (object);
}
static void
gtk_text_tag_ensure_font (GtkTextTag *text_tag)
{
GtkTextTagPrivate *priv = text_tag->priv;
if (!priv->values->font)
priv->values->font = pango_font_description_new ();
}
static void
gtk_text_tag_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkTextTag *text_tag = GTK_TEXT_TAG (object);
GtkTextTagPrivate *priv = text_tag->priv;
gboolean size_changed = FALSE;
switch (prop_id)
{
case PROP_NAME:
g_return_if_fail (priv->name == NULL);
priv->name = g_value_dup_string (value);
break;
case PROP_BACKGROUND:
{
GdkRGBA rgba;
if (!g_value_get_string (value))
set_bg_rgba (text_tag, NULL); /* reset background_set to FALSE */
else if (gdk_rgba_parse (&rgba, g_value_get_string (value)))
set_bg_rgba (text_tag, &rgba);
else
g_warning ("Don't know color `%s'", g_value_get_string (value));
g_object_notify (object, "background-gdk");
}
break;
case PROP_FOREGROUND:
{
GdkRGBA rgba;
if (!g_value_get_string (value))
set_fg_rgba (text_tag, NULL); /* reset to foreground_set to FALSE */
else if (gdk_rgba_parse (&rgba, g_value_get_string (value)))
set_fg_rgba (text_tag, &rgba);
else
g_warning ("Don't know color `%s'", g_value_get_string (value));
g_object_notify (object, "foreground-gdk");
}
break;
case PROP_BACKGROUND_GDK:
{
GdkColor *color = g_value_get_boxed (value);
set_bg_color (text_tag, color);
}
break;
case PROP_FOREGROUND_GDK:
{
GdkColor *color = g_value_get_boxed (value);
set_fg_color (text_tag, color);
}
break;
case PROP_BACKGROUND_RGBA:
{
GdkRGBA *color = g_value_get_boxed (value);
set_bg_rgba (text_tag, color);
}
break;
case PROP_FOREGROUND_RGBA:
{
GdkRGBA *color = g_value_get_boxed (value);
set_fg_rgba (text_tag, color);
}
break;
case PROP_FONT:
{
PangoFontDescription *font_desc = NULL;
const gchar *name;
name = g_value_get_string (value);
if (name)
font_desc = pango_font_description_from_string (name);
set_font_description (text_tag, font_desc);
if (font_desc)
pango_font_description_free (font_desc);
size_changed = TRUE;
}
break;
case PROP_FONT_DESC:
{
PangoFontDescription *font_desc;
font_desc = g_value_get_boxed (value);
set_font_description (text_tag, font_desc);
size_changed = TRUE;
}
break;
case PROP_FAMILY:
case PROP_STYLE:
case PROP_VARIANT:
case PROP_WEIGHT:
case PROP_STRETCH:
case PROP_SIZE:
case PROP_SIZE_POINTS:
{
PangoFontMask old_set_mask;
gtk_text_tag_ensure_font (text_tag);
old_set_mask = pango_font_description_get_set_fields (priv->values->font);
switch (prop_id)
{
case PROP_FAMILY:
pango_font_description_set_family (priv->values->font,
g_value_get_string (value));
break;
case PROP_STYLE:
pango_font_description_set_style (priv->values->font,
g_value_get_enum (value));
break;
case PROP_VARIANT:
pango_font_description_set_variant (priv->values->font,
g_value_get_enum (value));
break;
case PROP_WEIGHT:
pango_font_description_set_weight (priv->values->font,
g_value_get_int (value));
break;
case PROP_STRETCH:
pango_font_description_set_stretch (priv->values->font,
g_value_get_enum (value));
break;
case PROP_SIZE:
pango_font_description_set_size (priv->values->font,
g_value_get_int (value));
g_object_notify (object, "size-points");
break;
case PROP_SIZE_POINTS:
pango_font_description_set_size (priv->values->font,
g_value_get_double (value) * PANGO_SCALE);
g_object_notify (object, "size");
break;
}
size_changed = TRUE;
notify_set_changed (object, old_set_mask & pango_font_description_get_set_fields (priv->values->font));
g_object_notify (object, "font-desc");
g_object_notify (object, "font");
break;
}
case PROP_SCALE:
priv->values->font_scale = g_value_get_double (value);
priv->scale_set = TRUE;
g_object_notify (object, "scale-set");
size_changed = TRUE;
break;
case PROP_PIXELS_ABOVE_LINES:
priv->pixels_above_lines_set = TRUE;
priv->values->pixels_above_lines = g_value_get_int (value);
g_object_notify (object, "pixels-above-lines-set");
size_changed = TRUE;
break;
case PROP_PIXELS_BELOW_LINES:
priv->pixels_below_lines_set = TRUE;
priv->values->pixels_below_lines = g_value_get_int (value);
g_object_notify (object, "pixels-below-lines-set");
size_changed = TRUE;
break;
case PROP_PIXELS_INSIDE_WRAP:
priv->pixels_inside_wrap_set = TRUE;
priv->values->pixels_inside_wrap = g_value_get_int (value);
g_object_notify (object, "pixels-inside-wrap-set");
size_changed = TRUE;
break;
case PROP_EDITABLE:
priv->editable_set = TRUE;
priv->values->editable = g_value_get_boolean (value);
g_object_notify (object, "editable-set");
break;
case PROP_WRAP_MODE:
priv->wrap_mode_set = TRUE;
priv->values->wrap_mode = g_value_get_enum (value);
g_object_notify (object, "wrap-mode-set");
size_changed = TRUE;
break;
case PROP_JUSTIFICATION:
priv->justification_set = TRUE;
priv->values->justification = g_value_get_enum (value);
g_object_notify (object, "justification-set");
size_changed = TRUE;
break;
case PROP_DIRECTION:
priv->values->direction = g_value_get_enum (value);
break;
case PROP_LEFT_MARGIN:
priv->left_margin_set = TRUE;
priv->values->left_margin = g_value_get_int (value);
g_object_notify (object, "left-margin-set");
size_changed = TRUE;
break;
case PROP_INDENT:
priv->indent_set = TRUE;
priv->values->indent = g_value_get_int (value);
g_object_notify (object, "indent-set");
size_changed = TRUE;
break;
case PROP_STRIKETHROUGH:
priv->strikethrough_set = TRUE;
priv->values->appearance.strikethrough = g_value_get_boolean (value);
g_object_notify (object, "strikethrough-set");
break;
case PROP_RIGHT_MARGIN:
priv->right_margin_set = TRUE;
priv->values->right_margin = g_value_get_int (value);
g_object_notify (object, "right-margin-set");
size_changed = TRUE;
break;
case PROP_UNDERLINE:
priv->underline_set = TRUE;
priv->values->appearance.underline = g_value_get_enum (value);
g_object_notify (object, "underline-set");
break;
case PROP_RISE:
priv->rise_set = TRUE;
priv->values->appearance.rise = g_value_get_int (value);
g_object_notify (object, "rise-set");
size_changed = TRUE;
break;
case PROP_BACKGROUND_FULL_HEIGHT:
priv->bg_full_height_set = TRUE;
priv->values->bg_full_height = g_value_get_boolean (value);
g_object_notify (object, "background-full-height-set");
break;
case PROP_LANGUAGE:
priv->language_set = TRUE;
priv->values->language = pango_language_from_string (g_value_get_string (value));
g_object_notify (object, "language-set");
break;
case PROP_TABS:
priv->tabs_set = TRUE;
if (priv->values->tabs)
pango_tab_array_free (priv->values->tabs);
/* FIXME I'm not sure if this is a memleak or not */
priv->values->tabs =
pango_tab_array_copy (g_value_get_boxed (value));
g_object_notify (object, "tabs-set");
size_changed = TRUE;
break;
case PROP_INVISIBLE:
priv->invisible_set = TRUE;
priv->values->invisible = g_value_get_boolean (value);
g_object_notify (object, "invisible-set");
size_changed = TRUE;
break;
case PROP_PARAGRAPH_BACKGROUND:
{
GdkRGBA rgba;
if (!g_value_get_string (value))
set_pg_bg_rgba (text_tag, NULL); /* reset paragraph_background_set to FALSE */
else if (gdk_rgba_parse (&rgba, g_value_get_string (value)))
set_pg_bg_rgba (text_tag, &rgba);
else
g_warning ("Don't know color `%s'", g_value_get_string (value));
g_object_notify (object, "paragraph-background-gdk");
}
break;
case PROP_PARAGRAPH_BACKGROUND_GDK:
{
GdkColor *color = g_value_get_boxed (value);
set_pg_bg_color (text_tag, color);
}
break;
case PROP_PARAGRAPH_BACKGROUND_RGBA:
{
GdkRGBA *color = g_value_get_boxed (value);
set_pg_bg_rgba (text_tag, color);
}
break;
case PROP_ACCUMULATIVE_MARGIN:
priv->accumulative_margin = g_value_get_boolean (value);
g_object_notify (object, "accumulative-margin");
size_changed = TRUE;
break;
/* Whether the value should be used... */
case PROP_BACKGROUND_SET:
priv->bg_color_set = g_value_get_boolean (value);
break;
case PROP_FOREGROUND_SET:
priv->fg_color_set = g_value_get_boolean (value);
break;
case PROP_FAMILY_SET:
case PROP_STYLE_SET:
case PROP_VARIANT_SET:
case PROP_WEIGHT_SET:
case PROP_STRETCH_SET:
case PROP_SIZE_SET:
if (!g_value_get_boolean (value))
{
if (priv->values->font)
pango_font_description_unset_fields (priv->values->font,
get_property_font_set_mask (prop_id));
}
else
{
PangoFontMask changed_mask;
gtk_text_tag_ensure_font (text_tag);
changed_mask = set_font_desc_fields (priv->values->font,
get_property_font_set_mask (prop_id));
notify_fields_changed (G_OBJECT (text_tag), changed_mask);
}
break;
case PROP_SCALE_SET:
priv->scale_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_PIXELS_ABOVE_LINES_SET:
priv->pixels_above_lines_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_PIXELS_BELOW_LINES_SET:
priv->pixels_below_lines_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_PIXELS_INSIDE_WRAP_SET:
priv->pixels_inside_wrap_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_EDITABLE_SET:
priv->editable_set = g_value_get_boolean (value);
break;
case PROP_WRAP_MODE_SET:
priv->wrap_mode_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_JUSTIFICATION_SET:
priv->justification_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_LEFT_MARGIN_SET:
priv->left_margin_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_INDENT_SET:
priv->indent_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_STRIKETHROUGH_SET:
priv->strikethrough_set = g_value_get_boolean (value);
break;
case PROP_RIGHT_MARGIN_SET:
priv->right_margin_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_UNDERLINE_SET:
priv->underline_set = g_value_get_boolean (value);
break;
case PROP_RISE_SET:
priv->rise_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_BACKGROUND_FULL_HEIGHT_SET:
priv->bg_full_height_set = g_value_get_boolean (value);
break;
case PROP_LANGUAGE_SET:
priv->language_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_TABS_SET:
priv->tabs_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_INVISIBLE_SET:
priv->invisible_set = g_value_get_boolean (value);
size_changed = TRUE;
break;
case PROP_PARAGRAPH_BACKGROUND_SET:
priv->pg_bg_color_set = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
/* FIXME I would like to do this after all set_property in a single
* g_object_set () have been called. But an idle function won't
* work; we need to emit when the tag is changed, not when we get
* around to the event loop. So blah, we eat some inefficiency.
*/
/* This is also somewhat weird since we emit another object's
* signal here, but the two objects are already tightly bound.
*/
if (priv->table)
g_signal_emit_by_name (priv->table,
"tag_changed",
text_tag, size_changed);
}
static void
gtk_text_tag_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkTextTag *tag = GTK_TEXT_TAG (object);
GtkTextTagPrivate *priv = tag->priv;
switch (prop_id)
{
case PROP_NAME:
g_value_set_string (value, priv->name);
break;
case PROP_BACKGROUND_GDK:
g_value_set_boxed (value, &priv->values->appearance.bg_color);
break;
case PROP_BACKGROUND_RGBA:
g_value_set_boxed (value, priv->values->appearance.rgba[0]);
break;
case PROP_FOREGROUND_GDK:
g_value_set_boxed (value, &priv->values->appearance.fg_color);
break;
case PROP_FOREGROUND_RGBA:
g_value_set_boxed (value, priv->values->appearance.rgba[1]);
break;
case PROP_FONT:
{
gchar *str;
gtk_text_tag_ensure_font (tag);
str = pango_font_description_to_string (priv->values->font);
g_value_take_string (value, str);
}
break;
case PROP_FONT_DESC:
gtk_text_tag_ensure_font (tag);
g_value_set_boxed (value, priv->values->font);
break;
case PROP_FAMILY:
case PROP_STYLE:
case PROP_VARIANT:
case PROP_WEIGHT:
case PROP_STRETCH:
case PROP_SIZE:
case PROP_SIZE_POINTS:
gtk_text_tag_ensure_font (tag);
switch (prop_id)
{
case PROP_FAMILY:
g_value_set_string (value, pango_font_description_get_family (priv->values->font));
break;
case PROP_STYLE:
g_value_set_enum (value, pango_font_description_get_style (priv->values->font));
break;
case PROP_VARIANT:
g_value_set_enum (value, pango_font_description_get_variant (priv->values->font));
break;
case PROP_WEIGHT:
g_value_set_int (value, pango_font_description_get_weight (priv->values->font));
break;
case PROP_STRETCH:
g_value_set_enum (value, pango_font_description_get_stretch (priv->values->font));
break;
case PROP_SIZE:
g_value_set_int (value, pango_font_description_get_size (priv->values->font));
break;
case PROP_SIZE_POINTS:
g_value_set_double (value, ((double)pango_font_description_get_size (priv->values->font)) / (double)PANGO_SCALE);
break;
}
break;
case PROP_SCALE:
g_value_set_double (value, priv->values->font_scale);
break;
case PROP_PIXELS_ABOVE_LINES:
g_value_set_int (value, priv->values->pixels_above_lines);
break;
case PROP_PIXELS_BELOW_LINES:
g_value_set_int (value, priv->values->pixels_below_lines);
break;
case PROP_PIXELS_INSIDE_WRAP:
g_value_set_int (value, priv->values->pixels_inside_wrap);
break;
case PROP_EDITABLE:
g_value_set_boolean (value, priv->values->editable);
break;
case PROP_WRAP_MODE:
g_value_set_enum (value, priv->values->wrap_mode);
break;
case PROP_JUSTIFICATION:
g_value_set_enum (value, priv->values->justification);
break;
case PROP_DIRECTION:
g_value_set_enum (value, priv->values->direction);
break;
case PROP_LEFT_MARGIN:
g_value_set_int (value, priv->values->left_margin);
break;
case PROP_INDENT:
g_value_set_int (value, priv->values->indent);
break;
case PROP_STRIKETHROUGH:
g_value_set_boolean (value, priv->values->appearance.strikethrough);
break;
case PROP_RIGHT_MARGIN:
g_value_set_int (value, priv->values->right_margin);
break;
case PROP_UNDERLINE:
g_value_set_enum (value, priv->values->appearance.underline);
break;
case PROP_RISE:
g_value_set_int (value, priv->values->appearance.rise);
break;
case PROP_BACKGROUND_FULL_HEIGHT:
g_value_set_boolean (value, priv->values->bg_full_height);
break;
case PROP_LANGUAGE:
g_value_set_string (value, pango_language_to_string (priv->values->language));
break;
case PROP_TABS:
if (priv->values->tabs)
g_value_set_boxed (value, priv->values->tabs);
break;
case PROP_INVISIBLE:
g_value_set_boolean (value, priv->values->invisible);
break;
case PROP_PARAGRAPH_BACKGROUND_GDK:
g_value_set_boxed (value, priv->values->pg_bg_color);
break;
case PROP_PARAGRAPH_BACKGROUND_RGBA:
g_value_set_boxed (value, priv->values->pg_bg_rgba);
break;
case PROP_ACCUMULATIVE_MARGIN:
g_value_set_boolean (value, priv->accumulative_margin);
break;
case PROP_BACKGROUND_SET:
g_value_set_boolean (value, priv->bg_color_set);
break;
case PROP_FOREGROUND_SET:
g_value_set_boolean (value, priv->fg_color_set);
break;
case PROP_FAMILY_SET:
case PROP_STYLE_SET:
case PROP_VARIANT_SET:
case PROP_WEIGHT_SET:
case PROP_STRETCH_SET:
case PROP_SIZE_SET:
{
PangoFontMask set_mask = priv->values->font ? pango_font_description_get_set_fields (priv->values->font) : 0;
PangoFontMask test_mask = get_property_font_set_mask (prop_id);
g_value_set_boolean (value, (set_mask & test_mask) != 0);
break;
}
case PROP_SCALE_SET:
g_value_set_boolean (value, priv->scale_set);
break;
case PROP_PIXELS_ABOVE_LINES_SET:
g_value_set_boolean (value, priv->pixels_above_lines_set);
break;
case PROP_PIXELS_BELOW_LINES_SET:
g_value_set_boolean (value, priv->pixels_below_lines_set);
break;
case PROP_PIXELS_INSIDE_WRAP_SET:
g_value_set_boolean (value, priv->pixels_inside_wrap_set);
break;
case PROP_EDITABLE_SET:
g_value_set_boolean (value, priv->editable_set);
break;
case PROP_WRAP_MODE_SET:
g_value_set_boolean (value, priv->wrap_mode_set);
break;
case PROP_JUSTIFICATION_SET:
g_value_set_boolean (value, priv->justification_set);
break;
case PROP_LEFT_MARGIN_SET:
g_value_set_boolean (value, priv->left_margin_set);
break;
case PROP_INDENT_SET:
g_value_set_boolean (value, priv->indent_set);
break;
case PROP_STRIKETHROUGH_SET:
g_value_set_boolean (value, priv->strikethrough_set);
break;
case PROP_RIGHT_MARGIN_SET:
g_value_set_boolean (value, priv->right_margin_set);
break;
case PROP_UNDERLINE_SET:
g_value_set_boolean (value, priv->underline_set);
break;
case PROP_RISE_SET:
g_value_set_boolean (value, priv->rise_set);
break;
case PROP_BACKGROUND_FULL_HEIGHT_SET:
g_value_set_boolean (value, priv->bg_full_height_set);
break;
case PROP_LANGUAGE_SET:
g_value_set_boolean (value, priv->language_set);
break;
case PROP_TABS_SET:
g_value_set_boolean (value, priv->tabs_set);
break;
case PROP_INVISIBLE_SET:
g_value_set_boolean (value, priv->invisible_set);
break;
case PROP_PARAGRAPH_BACKGROUND_SET:
g_value_set_boolean (value, priv->pg_bg_color_set);
break;
case PROP_BACKGROUND:
case PROP_FOREGROUND:
case PROP_PARAGRAPH_BACKGROUND:
g_warning ("'foreground', 'background' and 'paragraph_background' properties are not readable, use 'foreground_gdk', 'background_gdk' and 'paragraph_background_gdk'");
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/*
* Tag operations
*/
typedef struct {
gint high;
gint low;
gint delta;
} DeltaData;
static void
delta_priority_foreach (GtkTextTag *tag, gpointer user_data)
{
GtkTextTagPrivate *priv = tag->priv;
DeltaData *dd = user_data;
if (priv->priority >= dd->low && priv->priority <= dd->high)
priv->priority += dd->delta;
}
/**
* gtk_text_tag_get_priority:
* @tag: a #GtkTextTag
*
* Get the tag priority.
*
* Return value: The tags priority.
**/
gint
gtk_text_tag_get_priority (GtkTextTag *tag)
{
g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), 0);
return tag->priv->priority;
}
/**
* gtk_text_tag_set_priority:
* @tag: a #GtkTextTag
* @priority: the new 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 buffers table
* automatically.
**/
void
gtk_text_tag_set_priority (GtkTextTag *tag,
gint priority)
{
GtkTextTagPrivate *priv;
DeltaData dd;
g_return_if_fail (GTK_IS_TEXT_TAG (tag));
priv = tag->priv;
g_return_if_fail (priv->table != NULL);
g_return_if_fail (priority >= 0);
g_return_if_fail (priority < gtk_text_tag_table_get_size (priv->table));
if (priority == priv->priority)
return;
if (priority < priv->priority)
{
dd.low = priority;
dd.high = priv->priority - 1;
dd.delta = 1;
}
else
{
dd.low = priv->priority + 1;
dd.high = priority;
dd.delta = -1;
}
gtk_text_tag_table_foreach (priv->table,
delta_priority_foreach,
&dd);
priv->priority = priority;
}
/**
* gtk_text_tag_event:
* @tag: a #GtkTextTag
* @event_object: object that received the event, such as a widget
* @event: the event
* @iter: location where the event was received
*
* Emits the “event” signal on the #GtkTextTag.
*
* Return value: result of signal emission (whether the event was handled)
**/
gboolean
gtk_text_tag_event (GtkTextTag *tag,
GObject *event_object,
GdkEvent *event,
const GtkTextIter *iter)
{
gboolean retval = FALSE;
g_return_val_if_fail (GTK_IS_TEXT_TAG (tag), FALSE);
g_return_val_if_fail (G_IS_OBJECT (event_object), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
g_signal_emit (tag,
signals[EVENT],
0,
event_object,
event,
iter,
&retval);
return retval;
}
static int
tag_sort_func (gconstpointer first, gconstpointer second)
{
GtkTextTag *tag1, *tag2;
tag1 = * (GtkTextTag **) first;
tag2 = * (GtkTextTag **) second;
return tag1->priv->priority - tag2->priv->priority;
}
void
_gtk_text_tag_array_sort (GtkTextTag** tag_array_p,
guint len)
{
int i, j, prio;
GtkTextTag **tag;
GtkTextTag **maxPtrPtr, *tmp;
g_return_if_fail (tag_array_p != NULL);
g_return_if_fail (len > 0);
if (len < 2) {
return;
}
if (len < 20) {
GtkTextTag **iter = tag_array_p;
for (i = len-1; i > 0; i--, iter++) {
maxPtrPtr = tag = iter;
prio = tag[0]->priv->priority;
for (j = i, tag++; j > 0; j--, tag++) {
if (tag[0]->priv->priority < prio) {
prio = tag[0]->priv->priority;
maxPtrPtr = tag;
}
}
tmp = *maxPtrPtr;
*maxPtrPtr = *iter;
*iter = tmp;
}
} else {
qsort ((void *) tag_array_p, (unsigned) len, sizeof (GtkTextTag *),
tag_sort_func);
}
#if 0
{
printf ("Sorted tag array: \n");
i = 0;
while (i < len)
{
GtkTextTag *t = tag_array_p[i];
printf (" %s priority %d\n", t->name, t->priority);
++i;
}
}
#endif
}