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gtk2/gtk/gtktexttag.c
Matthias Clasen c6838fbff0 GtkTextView: Support font features 
Add a ::font-features attribute to GtkTextTag, and support
font features when inserting Pango markup into a text buffer.
2015-07-29 21:42:58 -04:00

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/* 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 "gtktextattributesprivate.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_STRIKETHROUGH_RGBA,
PROP_RIGHT_MARGIN,
PROP_UNDERLINE,
PROP_UNDERLINE_RGBA,
PROP_RISE,
PROP_BACKGROUND_FULL_HEIGHT,
PROP_LANGUAGE,
PROP_TABS,
PROP_INVISIBLE,
PROP_PARAGRAPH_BACKGROUND,
PROP_PARAGRAPH_BACKGROUND_GDK,
PROP_PARAGRAPH_BACKGROUND_RGBA,
PROP_FALLBACK,
PROP_LETTER_SPACING,
PROP_FONT_FEATURES,
/* 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_STRIKETHROUGH_RGBA_SET,
PROP_RIGHT_MARGIN_SET,
PROP_UNDERLINE_SET,
PROP_UNDERLINE_RGBA_SET,
PROP_RISE_SET,
PROP_BACKGROUND_FULL_HEIGHT_SET,
PROP_LANGUAGE_SET,
PROP_TABS_SET,
PROP_INVISIBLE_SET,
PROP_PARAGRAPH_BACKGROUND_SET,
PROP_FALLBACK_SET,
PROP_LETTER_SPACING_SET,
PROP_FONT_FEATURES_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"),
g_type_from_name ("GdkColor"),
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"),
g_type_from_name ("GdkColor"),
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));
/**
* GtkTextTag:underline-rgba:
*
* This property modifies the color of underlines. If not set, underlines
* will use the forground color.
*
* If #GtkTextTag: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.
*
* Since: 3.16
*/
g_object_class_install_property (object_class,
PROP_UNDERLINE_RGBA,
g_param_spec_boxed ("underline-rgba",
P_("Underline RGBA"),
P_("Color of underline for this text"),
GDK_TYPE_RGBA,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:strikethrough-rgba:
*
* This property modifies the color of strikeouts. If not set, strikeouts
* will use the forground color.
*
* Since: 3.16
*/
g_object_class_install_property (object_class,
PROP_STRIKETHROUGH_RGBA,
g_param_spec_boxed ("strikethrough-rgba",
P_("Strikethrough RGBA"),
P_("Color of strikethrough for this text"),
GDK_TYPE_RGBA,
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"),
g_type_from_name ("GdkColor"),
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:fallback:
*
* Whether font fallback is enabled.
*
* When set to %TRUE, other fonts will be substituted
* where the current font is missing glyphs.
*
* Since: 3.16
*/
g_object_class_install_property (object_class,
PROP_FALLBACK,
g_param_spec_boolean ("fallback",
P_("Fallback"),
P_("Whether font fallback is enabled."),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:letter-spacing:
*
* Extra spacing between graphemes, in Pango units.
*
* Since: 3.16
*/
g_object_class_install_property (object_class,
PROP_LETTER_SPACING,
g_param_spec_int ("letter-spacing",
P_("Letter Spacing"),
P_("Extra spacing between graphemes"),
0, G_MAXINT, 0,
GTK_PARAM_READWRITE));
/**
* GtkTextTag:font-features:
*
* OpenType font features, as a string.
*
* Since: 3.18
*/
g_object_class_install_property (object_class,
PROP_FONT_FEATURES,
g_param_spec_string ("font-features",
P_("Font Features"),
P_("OpenType Font Features to use"),
NULL,
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"));
/**
* GtkTextTag:underline-rgba-set:
*
* If the #GtkTextTag:underline-rgba property has been set.
*
* Since: 3.16
*/
ADD_SET_PROP ("underline-rgba-set", PROP_UNDERLINE_RGBA_SET,
P_("Underline RGBA set"),
P_("Whether this tag affects underlining color"));
/**
* GtkTextTag:strikethrough-rgba-set:
*
* If the #GtkTextTag:strikethrough-rgba property has been set.
*
* Since: 3.16
*/
ADD_SET_PROP ("strikethrough-rgba-set", PROP_STRIKETHROUGH_RGBA_SET,
P_("Strikethrough RGBA set"),
P_("Whether this tag affects strikethrough color"));
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"));
ADD_SET_PROP ("fallback-set", PROP_FALLBACK_SET,
P_("Fallback set"),
P_("Whether this tag affects font fallback"));
ADD_SET_PROP ("letter-spacing-set", PROP_LETTER_SPACING_SET,
P_("Letter spacing set"),
P_("Whether this tag affects letter spacing"));
ADD_SET_PROP ("font-features-set", PROP_FONT_FEATURES_SET,
P_("Font features set"),
P_("Whether this tag affects font features"));
/**
* 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().
*
* Returns: 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_underline_rgba (GtkTextTag *tag,
const GdkRGBA *rgba)
{
GtkTextTagPrivate *priv = tag->priv;
if (rgba)
{
GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA (&priv->values->appearance, rgba);
if (!GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (&priv->values->appearance))
{
GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA_SET (&priv->values->appearance, TRUE);
g_object_notify (G_OBJECT (tag), "underline-rgba-set");
}
}
else
{
GdkRGBA black = { 0 };
GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA (&priv->values->appearance, &black);
if (GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (&priv->values->appearance))
{
GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA_SET (&priv->values->appearance, FALSE);
g_object_notify (G_OBJECT (tag), "underline-rgba-set");
}
}
}
static void
set_strikethrough_rgba (GtkTextTag *tag,
const GdkRGBA *rgba)
{
GtkTextTagPrivate *priv = tag->priv;
if (rgba)
{
GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA (&priv->values->appearance, rgba);
if (!GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance))
{
GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance, TRUE);
g_object_notify (G_OBJECT (tag), "strikethrough-rgba-set");
}
}
else
{
GdkRGBA black = { 0 };
GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA (&priv->values->appearance, &black);
if (GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance))
{
GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance, FALSE);
g_object_notify (G_OBJECT (tag), "strikethrough-rgba-set");
}
}
}
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);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
if (priv->values->pg_bg_color)
gdk_color_free (priv->values->pg_bg_color);
G_GNUC_END_IGNORE_DEPRECATIONS
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);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
priv->values->pg_bg_color = gdk_color_copy (&color);
G_GNUC_END_IGNORE_DEPRECATIONS
}
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_STRIKETHROUGH_RGBA:
{
GdkRGBA *color = g_value_get_boxed (value);
set_strikethrough_rgba (text_tag, color);
}
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_UNDERLINE_RGBA:
{
GdkRGBA *color = g_value_get_boxed (value);
set_underline_rgba (text_tag, color);
}
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_FALLBACK:
priv->fallback_set = TRUE;
priv->values->no_fallback = !g_value_get_boolean (value);
g_object_notify (object, "fallback-set");
break;
case PROP_LETTER_SPACING:
priv->letter_spacing_set = TRUE;
priv->values->letter_spacing = g_value_get_int (value);
g_object_notify (object, "letter-spacing-set");
break;
case PROP_FONT_FEATURES:
priv->font_features_set = TRUE;
priv->values->font_features = g_value_dup_string (value);
g_object_notify (object, "font-features-set");
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_STRIKETHROUGH_RGBA_SET:
GTK_TEXT_APPEARANCE_SET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance,
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_UNDERLINE_RGBA_SET:
GTK_TEXT_APPEARANCE_SET_UNDERLINE_RGBA_SET (&priv->values->appearance,
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;
case PROP_FALLBACK_SET:
priv->fallback_set = g_value_get_boolean (value);
break;
case PROP_LETTER_SPACING_SET:
priv->letter_spacing_set = g_value_get_boolean (value);
break;
case PROP_FONT_FEATURES_SET:
priv->font_features_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_STRIKETHROUGH_RGBA:
if (GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance))
{
GdkRGBA rgba;
GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA (&priv->values->appearance, &rgba);
g_value_set_boxed (value, &rgba);
}
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_UNDERLINE_RGBA:
if (GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (&priv->values->appearance))
{
GdkRGBA rgba;
GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA (&priv->values->appearance, &rgba);
g_value_set_boxed (value, &rgba);
}
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_FALLBACK:
g_value_set_boolean (value, !priv->values->no_fallback);
break;
case PROP_LETTER_SPACING:
g_value_set_int (value, priv->values->letter_spacing);
break;
case PROP_FONT_FEATURES:
g_value_set_string (value, priv->values->font_features);
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_STRIKETHROUGH_RGBA_SET:
g_value_set_boolean (value,
GTK_TEXT_APPEARANCE_GET_STRIKETHROUGH_RGBA_SET (&priv->values->appearance));
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_UNDERLINE_RGBA_SET:
g_value_set_boolean (value,
GTK_TEXT_APPEARANCE_GET_UNDERLINE_RGBA_SET (&priv->values->appearance));
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_FALLBACK_SET:
g_value_set_boolean (value, priv->fallback_set);
break;
case PROP_LETTER_SPACING_SET:
g_value_set_boolean (value, priv->letter_spacing_set);
break;
case PROP_FONT_FEATURES_SET:
g_value_set_boolean (value, priv->font_features_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.
*
* Returns: The tag’s 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 buffer’s 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.
*
* Returns: 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
}
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