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/*
* This file is part of GtkSourceView
*
* Copyright (C) 2003 - Paolo Maggi <paolo.maggi@polito.it>
* Copyright (C) 2023 - Sébastien Wilmet <swilmet@gnome.org>
*
* GtkSourceView is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* GtkSourceView is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "gtksourcestyle.h"
/**
* SECTION:style
* @Title: GtkSourceStyle
* @Short_description: A style
*
* The #GtkSourceStyle structure contains text attributes.
*/
/* API design:
*
* In a past implementation, GtkSourceStyle was a GObject with a lot of
* properties to get each individual attribute (the properties were read-write
* and construct-only). This was language-bindings friendly, but a bit too
* "heavy" as a solution.
*
* Thus it is now a boxed type.
*
* Reference counting is useful to implement the use-style attribute of the
* <style> tag from the style scheme XML file format.
*/
G_DEFINE_BOXED_TYPE (GtkSourceStyle, gtk_source_style,
gtk_source_style_ref,
gtk_source_style_unref)
/**
* gtk_source_style_new:
*
* Creates a new #GtkSourceStyle with initially all the "`use_`" fields set to
* %FALSE.
*
* Returns: a new #GtkSourceStyle with a reference count of one.
* Since: 299.2
*/
GtkSourceStyle *
gtk_source_style_new (void)
{
GtkSourceStyle *style;
style = g_new0 (GtkSourceStyle, 1);
g_ref_count_init (&style->ref_count);
return style;
}
/**
* gtk_source_style_ref:
* @style: a #GtkSourceStyle.
*
* Increases the reference count of @style by one.
*
* Returns: (transfer full): the passed in @style.
* Since: 299.2
*/
GtkSourceStyle *
gtk_source_style_ref (GtkSourceStyle *style)
{
g_return_val_if_fail (style != NULL, NULL);
g_ref_count_inc (&style->ref_count);
return style;
}
/**
* gtk_source_style_unref:
* @style: a #GtkSourceStyle.
*
* Decreases the reference count of @style by one. If the reference count drops
* to 0, @style is freed.
*
* Since: 299.2
*/
void
gtk_source_style_unref (GtkSourceStyle *style)
{
g_return_if_fail (style != NULL);
if (g_ref_count_dec (&style->ref_count))
{
g_free (style);
}
}
/**
* gtk_source_style_apply:
* @style: (nullable): a #GtkSourceStyle to apply, or %NULL.
* @tag: a #GtkTextTag to apply styles to.
*
* This function modifies the #GtkTextTag properties that are related to the
* #GtkSourceStyle attributes. Other #GtkTextTag properties are left untouched.
*
* If @style is non-%NULL, applies @style to @tag.
*
* If @style is %NULL, the related `*-set` properties of #GtkTextTag are set to
* %FALSE.
*
* Since: 3.22
*/
void
gtk_source_style_apply (GtkSourceStyle *style,
GtkTextTag *tag)
{
g_return_if_fail (GTK_IS_TEXT_TAG (tag));
if (style != NULL)
{
g_object_freeze_notify (G_OBJECT (tag));
if (style->use_foreground_color)
{
g_object_set (tag, "foreground-rgba", &style->foreground_color, NULL);
}
else
{
g_object_set (tag, "foreground-set", FALSE, NULL);
}
if (style->use_background_color)
{
g_object_set (tag, "background-rgba", &style->background_color, NULL);
}
else
{
g_object_set (tag, "background-set", FALSE, NULL);
}
if (style->use_italic)
{
g_object_set (tag, "style", style->italic ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL, NULL);
}
else
{
g_object_set (tag, "style-set", FALSE, NULL);
}
if (style->use_bold)
{
g_object_set (tag, "weight", style->bold ? PANGO_WEIGHT_BOLD : PANGO_WEIGHT_NORMAL, NULL);
}
else
{
g_object_set (tag, "weight-set", FALSE, NULL);
}
if (style->use_underline)
{
g_object_set (tag, "underline", style->underline, NULL);
}
else
{
g_object_set (tag, "underline-set", FALSE, NULL);
}
if (style->use_underline_color)
{
g_object_set (tag, "underline-rgba", &style->underline_color, NULL);
}
else
{
g_object_set (tag, "underline-rgba-set", FALSE, NULL);
}
if (style->use_strikethrough)
{
g_object_set (tag, "strikethrough", style->strikethrough, NULL);
}
else
{
g_object_set (tag, "strikethrough-set", FALSE, NULL);
}
if (style->use_scale)
{
g_object_set (tag, "scale", style->scale, NULL);
}
else
{
g_object_set (tag, "scale-set", FALSE, NULL);
}
g_object_thaw_notify (G_OBJECT (tag));
}
else
{
g_object_set (tag,
"foreground-set", FALSE,
"background-set", FALSE,
"style-set", FALSE,
"weight-set", FALSE,
"underline-set", FALSE,
"underline-rgba-set", FALSE,
"strikethrough-set", FALSE,
"scale-set", FALSE,
NULL);
}
}
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