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/* GTK - The GIMP Toolkit
* Copyright (C) 2012 Benjamin Otte <otte@gnome.org>
*
* This library 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 of the License, or (at your option) any later version.
*
* This library 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 "config.h"
#include "gtkcssmatcherprivate.h"
#include "gtkwidgetpath.h"
/* GTK_CSS_MATCHER_WIDGET_PATH */
static gboolean
gtk_css_matcher_widget_path_get_parent (GtkCssMatcher *matcher,
const GtkCssMatcher *child)
{
if (child->path.index == 0)
return FALSE;
matcher->path.klass = child->path.klass;
matcher->path.path = child->path.path;
matcher->path.state_flags = 0;
matcher->path.index = child->path.index - 1;
matcher->path.sibling_index = gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index);
return TRUE;
}
static gboolean
gtk_css_matcher_widget_path_get_previous (GtkCssMatcher *matcher,
const GtkCssMatcher *next)
{
if (next->path.sibling_index == 0)
return FALSE;
matcher->path.klass = next->path.klass;
matcher->path.path = next->path.path;
matcher->path.state_flags = 0;
matcher->path.index = next->path.index;
matcher->path.sibling_index = next->path.sibling_index - 1;
return TRUE;
}
static GtkStateFlags
gtk_css_matcher_widget_path_get_state (const GtkCssMatcher *matcher)
{
return matcher->path.state_flags;
}
static gboolean
gtk_css_matcher_widget_path_has_name (const GtkCssMatcher *matcher,
const char *name)
{
const GtkWidgetPath *siblings;
GType type;
type = g_type_from_name (name);
siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
return g_type_is_a (gtk_widget_path_iter_get_object_type (siblings, matcher->path.sibling_index), type);
else
return g_type_is_a (gtk_widget_path_iter_get_object_type (matcher->path.path, matcher->path.index), type);
}
static gboolean
gtk_css_matcher_widget_path_has_class (const GtkCssMatcher *matcher,
const char *class_name)
{
const GtkWidgetPath *siblings;
siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
return gtk_widget_path_iter_has_class (siblings, matcher->path.sibling_index, class_name);
else
return gtk_widget_path_iter_has_class (matcher->path.path, matcher->path.index, class_name);
}
static gboolean
gtk_css_matcher_widget_path_has_id (const GtkCssMatcher *matcher,
const char *id)
{
const GtkWidgetPath *siblings;
siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
return gtk_widget_path_iter_has_name (siblings, matcher->path.sibling_index, id);
else
return gtk_widget_path_iter_has_name (matcher->path.path, matcher->path.index, id);
}
static gboolean
gtk_css_matcher_widget_path_has_regions (const GtkCssMatcher *matcher)
{
const GtkWidgetPath *siblings;
GSList *regions;
gboolean result;
siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
regions = gtk_widget_path_iter_list_regions (siblings, matcher->path.sibling_index);
else
regions = gtk_widget_path_iter_list_regions (matcher->path.path, matcher->path.index);
result = regions != NULL;
g_slist_free (regions);
return result;
}
static gboolean
gtk_css_matcher_widget_path_has_region (const GtkCssMatcher *matcher,
const char *region,
GtkRegionFlags flags)
{
const GtkWidgetPath *siblings;
GtkRegionFlags region_flags;
siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
{
if (!gtk_widget_path_iter_has_region (siblings, matcher->path.sibling_index, region, ®ion_flags))
return FALSE;
}
else
{
if (!gtk_widget_path_iter_has_region (matcher->path.path, matcher->path.index, region, ®ion_flags))
return FALSE;
}
if ((flags & region_flags) != flags)
return FALSE;
return TRUE;
}
static gboolean
gtk_css_matcher_widget_path_has_position (const GtkCssMatcher *matcher,
gboolean forward,
int a,
int b)
{
const GtkWidgetPath *siblings;
int x;
siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
if (!siblings)
return FALSE;
if (forward)
x = matcher->path.sibling_index + 1;
else
x = gtk_widget_path_length (siblings) - matcher->path.sibling_index;
x -= b;
if (a == 0)
return x == 0;
if (x % a)
return FALSE;
return x / a > 0;
}
static const GtkCssMatcherClass GTK_CSS_MATCHER_WIDGET_PATH = {
gtk_css_matcher_widget_path_get_parent,
gtk_css_matcher_widget_path_get_previous,
gtk_css_matcher_widget_path_get_state,
gtk_css_matcher_widget_path_has_name,
gtk_css_matcher_widget_path_has_class,
gtk_css_matcher_widget_path_has_id,
gtk_css_matcher_widget_path_has_regions,
gtk_css_matcher_widget_path_has_region,
gtk_css_matcher_widget_path_has_position,
};
void
_gtk_css_matcher_init (GtkCssMatcher *matcher,
const GtkWidgetPath *path,
GtkStateFlags state)
{
matcher->path.klass = >K_CSS_MATCHER_WIDGET_PATH;
matcher->path.path = path;
matcher->path.state_flags = state;
matcher->path.index = gtk_widget_path_length (path) - 1;
matcher->path.sibling_index = gtk_widget_path_iter_get_sibling_index (path, matcher->path.index);
}
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