gtkstyleproviderprivate.c 4.2 KB
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/* GTK - The GIMP Toolkit
 * Copyright (C) 2011 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
Javier Jardón's avatar
Javier Jardón committed
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 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
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 */

#include "config.h"

#include "gtkstyleproviderprivate.h"
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#include "gtkintl.h"
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#include "gtkstyleprovider.h"
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#include "gtkprivate.h"
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enum {
  CHANGED,
  LAST_SIGNAL
};

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G_DEFINE_INTERFACE (GtkStyleProviderPrivate, _gtk_style_provider_private, GTK_TYPE_STYLE_PROVIDER)

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static guint signals[LAST_SIGNAL];
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static void
_gtk_style_provider_private_default_init (GtkStyleProviderPrivateInterface *iface)
{
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  signals[CHANGED] = g_signal_new (I_("-gtk-private-changed"),
                                   G_TYPE_FROM_INTERFACE (iface),
                                   G_SIGNAL_RUN_LAST,
                                   G_STRUCT_OFFSET (GtkStyleProviderPrivateInterface, changed),
                                   NULL, NULL,
                                   g_cclosure_marshal_VOID__VOID,
                                   G_TYPE_NONE, 0);

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}

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GtkCssValue *
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_gtk_style_provider_private_get_color (GtkStyleProviderPrivate *provider,
                                       const char              *name)
{
  GtkStyleProviderPrivateInterface *iface;

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  /* for compat with gtk_symbolic_color_resolve() */
  if (provider == NULL)
    return NULL;

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  gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), NULL);
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  iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);

  if (!iface->get_color)
    return NULL;

  return iface->get_color (provider, name);
}

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GtkCssKeyframes *
_gtk_style_provider_private_get_keyframes (GtkStyleProviderPrivate *provider,
                                           const char              *name)
{
  GtkStyleProviderPrivateInterface *iface;

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  gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), NULL);
  gtk_internal_return_val_if_fail (name != NULL, NULL);
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  iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);

  if (!iface->get_keyframes)
    return NULL;

  return iface->get_keyframes (provider, name);
}

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void
_gtk_style_provider_private_lookup (GtkStyleProviderPrivate *provider,
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                                    const GtkCssMatcher     *matcher,
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                                    GtkCssLookup            *lookup,
                                    GtkCssChange            *out_change)
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{
  GtkStyleProviderPrivateInterface *iface;

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  gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
  gtk_internal_return_if_fail (matcher != NULL);
  gtk_internal_return_if_fail (lookup != NULL);
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  if (out_change)
    *out_change = 0;

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  iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);

  if (!iface->lookup)
    return;

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  iface->lookup (provider, matcher, lookup, out_change);
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}
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void
_gtk_style_provider_private_changed (GtkStyleProviderPrivate *provider)
{
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  gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
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  g_signal_emit (provider, signals[CHANGED], 0);
}

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GtkSettings *
_gtk_style_provider_private_get_settings (GtkStyleProviderPrivate *provider)
{
  GtkStyleProviderPrivateInterface *iface;

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  gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), NULL);
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  iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);

  if (!iface->get_settings)
    return NULL;

  return iface->get_settings (provider);
}

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int
_gtk_style_provider_private_get_scale (GtkStyleProviderPrivate *provider)
{
  GtkStyleProviderPrivateInterface *iface;

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  gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider), 1);
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  iface = GTK_STYLE_PROVIDER_PRIVATE_GET_INTERFACE (provider);

  if (!iface->get_scale)
    return 1;

  return iface->get_scale (provider);
}