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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */
/* GTK - The GIMP Toolkit
* Copyright (C) 2000 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/

/*
* Modified by the GTK+ Team and others 1997-2003. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/

#include "config.h"

#include <string.h>

#include "gtkmessagedialog.h"
#include "gtkaccessible.h"
#include "gtkbuildable.h"
#include "gtklabel.h"
#include "gtkhbox.h"
#include "gtkvbox.h"
#include "gtkimage.h"
#include "gtkstock.h"
#include "gtkiconfactory.h"
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtktypebuiltins.h"

/**
* SECTION:gtkmessagedialog
* @Short_description: A convenient message window
* @Title: GtkMessageDialog
* @See_also:#GtkDialog
*
* #GtkMessageDialog presents a dialog with an image representing the type of
* message (Error, Question, etc.) alongside some message text. It's simply a
* convenience widget; you could construct the equivalent of #GtkMessageDialog
* from #GtkDialog without too much effort, but #GtkMessageDialog saves typing.
*
* The easiest way to do a modal message dialog is to use gtk_dialog_run(), though
* you can also pass in the %GTK_DIALOG_MODAL flag, gtk_dialog_run() automatically
* makes the dialog modal and waits for the user to respond to it. gtk_dialog_run()
* returns when any dialog button is clicked.
* <example>
* <title>A modal dialog.</title>
* <programlisting>
* dialog = gtk_message_dialog_new (main_application_window,
* GTK_DIALOG_DESTROY_WITH_PARENT,
* GTK_MESSAGE_ERROR,
* GTK_BUTTONS_CLOSE,
* "Error loading file '&percnt;s': &percnt;s",
* filename, g_strerror (errno));
* gtk_dialog_run (GTK_DIALOG (dialog));
* gtk_widget_destroy (dialog);
* </programlisting>
* </example>
* You might do a non-modal #GtkMessageDialog as follows:
* <example>
* <title>A non-modal dialog.</title>
* <programlisting>
* dialog = gtk_message_dialog_new (main_application_window,
* GTK_DIALOG_DESTROY_WITH_PARENT,
* GTK_MESSAGE_ERROR,
* GTK_BUTTONS_CLOSE,
* "Error loading file '&percnt;s': &percnt;s",
* filename, g_strerror (errno));
*
* /&ast; Destroy the dialog when the user responds to it (e.g. clicks a button) &ast;/
* g_signal_connect_swapped (dialog, "response",
* G_CALLBACK (gtk_widget_destroy),
* dialog);
* </programlisting>
* </example>
*
* <refsect2 id="GtkMessageDialog-BUILDER-UI">
* <title>GtkMessageDialog as GtkBuildable</title>
* <para>
* The GtkMessageDialog implementation of the GtkBuildable interface exposes
* the message area as an internal child with the name "message_area".
* </para>
* </refsect2>
*/

struct _GtkMessageDialogPrivate
{
  GtkWidget *image;
  GtkWidget *label;
  GtkWidget *message_area; /* vbox for the primary and secondary labels, and any extra content from the caller */
  GtkWidget *secondary_label;

  guint has_primary_markup : 1;
  guint has_secondary_text : 1;
  guint message_type : 3;
};

static void gtk_message_dialog_style_updated (GtkWidget *widget);

static void gtk_message_dialog_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_message_dialog_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_message_dialog_add_buttons (GtkMessageDialog *message_dialog,
GtkButtonsType buttons);
static void gtk_message_dialog_buildable_interface_init (GtkBuildableIface *iface);
static GObject * gtk_message_dialog_buildable_get_internal_child (GtkBuildable *buildable,
                                                                  GtkBuilder *builder,
                                                                  const gchar *childname);


enum {
  PROP_0,
  PROP_MESSAGE_TYPE,
  PROP_BUTTONS,
  PROP_TEXT,
  PROP_USE_MARKUP,
  PROP_SECONDARY_TEXT,
  PROP_SECONDARY_USE_MARKUP,
  PROP_IMAGE,
  PROP_MESSAGE_AREA
};

G_DEFINE_TYPE_WITH_CODE (GtkMessageDialog, gtk_message_dialog, GTK_TYPE_DIALOG,
                         G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
                                                gtk_message_dialog_buildable_interface_init))

static GtkBuildableIface *parent_buildable_iface;

static void
gtk_message_dialog_buildable_interface_init (GtkBuildableIface *iface)
{
  parent_buildable_iface = g_type_interface_peek_parent (iface);
  iface->get_internal_child = gtk_message_dialog_buildable_get_internal_child;
  iface->custom_tag_start = parent_buildable_iface->custom_tag_start;
  iface->custom_finished = parent_buildable_iface->custom_finished;
}

static GObject *
gtk_message_dialog_buildable_get_internal_child (GtkBuildable *buildable,
                                                 GtkBuilder *builder,
                                                 const gchar *childname)
{
  if (strcmp (childname, "message_area") == 0)
    return G_OBJECT (gtk_message_dialog_get_message_area (GTK_MESSAGE_DIALOG (buildable)));

  return parent_buildable_iface->get_internal_child (buildable, builder, childname);
}


static void
gtk_message_dialog_class_init (GtkMessageDialogClass *class)
{
  GtkWidgetClass *widget_class;
  GObjectClass *gobject_class;

  widget_class = GTK_WIDGET_CLASS (class);
  gobject_class = G_OBJECT_CLASS (class);
  
  widget_class->style_updated = gtk_message_dialog_style_updated;

  gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_ALERT);

  gobject_class->set_property = gtk_message_dialog_set_property;
  gobject_class->get_property = gtk_message_dialog_get_property;
  
  gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("message-border",
                                                             P_("Image/label border"),
                                                             P_("Width of border around the label and image in the message dialog"),
                                                             0,
                                                             G_MAXINT,
                                                             12,
                                                             GTK_PARAM_READABLE));

  /**
* GtkMessageDialog:message-type:
*
* The type of the message. The type is used to determine
* the image that is shown in the dialog, unless the image is
* explicitly set by the ::image property.
*/
  g_object_class_install_property (gobject_class,
                                   PROP_MESSAGE_TYPE,
                                   g_param_spec_enum ("message-type",
P_("Message Type"),
P_("The type of message"),
GTK_TYPE_MESSAGE_TYPE,
                                                      GTK_MESSAGE_INFO,
                                                      GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
  g_object_class_install_property (gobject_class,
                                   PROP_BUTTONS,
                                   g_param_spec_enum ("buttons",
P_("Message Buttons"),
P_("The buttons shown in the message dialog"),
GTK_TYPE_BUTTONS_TYPE,
                                                      GTK_BUTTONS_NONE,
                                                      GTK_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));

  /**
* GtkMessageDialog:text:
*
* The primary text of the message dialog. If the dialog has
* a secondary text, this will appear as the title.
*
* Since: 2.10
*/
  g_object_class_install_property (gobject_class,
                                   PROP_TEXT,
                                   g_param_spec_string ("text",
                                                        P_("Text"),
                                                        P_("The primary text of the message dialog"),
                                                        "",
                                                        GTK_PARAM_READWRITE));

  /**
* GtkMessageDialog:use-markup:
*
* %TRUE if the primary text of the dialog includes Pango markup.
* See pango_parse_markup().
*
* Since: 2.10
*/
  g_object_class_install_property (gobject_class,
PROP_USE_MARKUP,
g_param_spec_boolean ("use-markup",
P_("Use Markup"),
P_("The primary text of the title includes Pango markup."),
FALSE,
GTK_PARAM_READWRITE));
  
  /**
* GtkMessageDialog:secondary-text:
*
* The secondary text of the message dialog.
*
* Since: 2.10
*/
  g_object_class_install_property (gobject_class,
                                   PROP_SECONDARY_TEXT,
                                   g_param_spec_string ("secondary-text",
                                                        P_("Secondary Text"),
                                                        P_("The secondary text of the message dialog"),
                                                        NULL,
                                                        GTK_PARAM_READWRITE));

  /**
* GtkMessageDialog:secondary-use-markup:
*
* %TRUE if the secondary text of the dialog includes Pango markup.
* See pango_parse_markup().
*
* Since: 2.10
*/
  g_object_class_install_property (gobject_class,
PROP_SECONDARY_USE_MARKUP,
g_param_spec_boolean ("secondary-use-markup",
P_("Use Markup in secondary"),
P_("The secondary text includes Pango markup."),
FALSE,
GTK_PARAM_READWRITE));

  /**
* GtkMessageDialog:image:
*
* The image for this dialog.
*
* Since: 2.10
*/
  g_object_class_install_property (gobject_class,
                                   PROP_IMAGE,
                                   g_param_spec_object ("image",
                                                        P_("Image"),
                                                        P_("The image"),
                                                        GTK_TYPE_WIDGET,
                                                        GTK_PARAM_READWRITE));

  /**
* GtkMessageDialog:message-area
*
* The #GtkVBox that corresponds to the message area of this dialog. See
* gtk_message_dialog_get_message_area() for a detailed description of this
* area.
*
* Since: 2.22
*/
  g_object_class_install_property (gobject_class,
PROP_MESSAGE_AREA,
g_param_spec_object ("message-area",
P_("Message area"),
P_("GtkVBox that holds the dialog's primary and secondary labels"),
GTK_TYPE_WIDGET,
GTK_PARAM_READABLE));

  g_type_class_add_private (gobject_class, sizeof (GtkMessageDialogPrivate));
}

static void
gtk_message_dialog_init (GtkMessageDialog *dialog)
{
  GtkWidget *hbox;
  GtkDialog *message_dialog = GTK_DIALOG (dialog);
  GtkWidget *action_area, *content_area;
  GtkMessageDialogPrivate *priv;

  dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog,
                                              GTK_TYPE_MESSAGE_DIALOG,
                                              GtkMessageDialogPrivate);
  priv = dialog->priv;

  content_area = gtk_dialog_get_content_area (message_dialog);
  action_area = gtk_dialog_get_action_area (message_dialog);

  gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
  gtk_window_set_title (GTK_WINDOW (dialog), "");
  gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE);

  priv->has_primary_markup = FALSE;
  priv->has_secondary_text = FALSE;
  priv->secondary_label = gtk_label_new (NULL);
  gtk_widget_set_no_show_all (priv->secondary_label, TRUE);

  priv->label = gtk_label_new (NULL);
  priv->image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
  gtk_widget_set_halign (priv->image, GTK_ALIGN_CENTER);
  gtk_widget_set_valign (priv->image, GTK_ALIGN_START);

  gtk_label_set_line_wrap (GTK_LABEL (priv->label), TRUE);
  gtk_label_set_selectable (GTK_LABEL (priv->label), TRUE);
  gtk_widget_set_halign (priv->label, GTK_ALIGN_START);
  gtk_widget_set_valign (priv->label, GTK_ALIGN_START);

  gtk_label_set_line_wrap (GTK_LABEL (priv->secondary_label), TRUE);
  gtk_label_set_selectable (GTK_LABEL (priv->secondary_label), TRUE);
  gtk_widget_set_halign (priv->secondary_label, GTK_ALIGN_START);
  gtk_widget_set_valign (priv->secondary_label, GTK_ALIGN_START);

  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
  priv->message_area = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);

  gtk_box_pack_start (GTK_BOX (priv->message_area), priv->label,
                      FALSE, FALSE, 0);

  gtk_box_pack_start (GTK_BOX (priv->message_area), priv->secondary_label,
                      TRUE, TRUE, 0);

  gtk_box_pack_start (GTK_BOX (hbox), priv->image,
                      FALSE, FALSE, 0);

  gtk_box_pack_start (GTK_BOX (hbox), priv->message_area,
                      TRUE, TRUE, 0);

  gtk_box_pack_start (GTK_BOX (content_area),
                      hbox,
                      FALSE, FALSE, 0);

  gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
  gtk_container_set_border_width (GTK_CONTAINER (hbox), 5);
  gtk_box_set_spacing (GTK_BOX (content_area), 14); /* 14 + 2 * 5 = 24 */
  gtk_container_set_border_width (GTK_CONTAINER (action_area), 5);
  gtk_box_set_spacing (GTK_BOX (action_area), 6);

  gtk_message_dialog_style_updated (GTK_WIDGET (dialog));

  gtk_widget_show_all (hbox);
}

static void
setup_primary_label_font (GtkMessageDialog *dialog)
{
  GtkMessageDialogPrivate *priv = dialog->priv;
  gint size;
  PangoFontDescription *font_desc;
  GtkStyleContext *context;
  GtkStateFlags state;

  /* unset the font settings */
  gtk_widget_override_font (priv->label, NULL);

  if (priv->has_secondary_text && !priv->has_primary_markup)
    {
      context = gtk_widget_get_style_context (priv->label);
      state = gtk_widget_get_state_flags (priv->label);

      size = pango_font_description_get_size (gtk_style_context_get_font (context, state));
      font_desc = pango_font_description_new ();
      pango_font_description_set_weight (font_desc, PANGO_WEIGHT_BOLD);
      pango_font_description_set_size (font_desc, size * PANGO_SCALE_LARGE);
      gtk_widget_override_font (priv->label, font_desc);
      pango_font_description_free (font_desc);
    }
}

static void
setup_type (GtkMessageDialog *dialog,
GtkMessageType type)
{
  GtkMessageDialogPrivate *priv = dialog->priv;
  const gchar *stock_id = NULL;
  AtkObject *atk_obj;
 
  priv->message_type = type;

  switch (type)
    {
    case GTK_MESSAGE_INFO:
      stock_id = GTK_STOCK_DIALOG_INFO;
      break;

    case GTK_MESSAGE_QUESTION:
      stock_id = GTK_STOCK_DIALOG_QUESTION;
      break;

    case GTK_MESSAGE_WARNING:
      stock_id = GTK_STOCK_DIALOG_WARNING;
      break;
      
    case GTK_MESSAGE_ERROR:
      stock_id = GTK_STOCK_DIALOG_ERROR;
      break;

    case GTK_MESSAGE_OTHER:
      break;

    default:
      g_warning ("Unknown GtkMessageType %u", type);
      break;
    }

  if (stock_id)
    gtk_image_set_from_stock (GTK_IMAGE (priv->image), stock_id,
                              GTK_ICON_SIZE_DIALOG);
      
  atk_obj = gtk_widget_get_accessible (GTK_WIDGET (dialog));
  if (GTK_IS_ACCESSIBLE (atk_obj))
    {
      atk_object_set_role (atk_obj, ATK_ROLE_ALERT);
      if (stock_id)
        {
          GtkStockItem item;

          gtk_stock_lookup (stock_id, &item);
          atk_object_set_name (atk_obj, item.label);
        }
    }
}

static void
gtk_message_dialog_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
  GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
  GtkMessageDialogPrivate *priv = dialog->priv;

  switch (prop_id)
    {
    case PROP_MESSAGE_TYPE:
      setup_type (dialog, g_value_get_enum (value));
      break;
    case PROP_BUTTONS:
      gtk_message_dialog_add_buttons (dialog, g_value_get_enum (value));
      break;
    case PROP_TEXT:
      if (priv->has_primary_markup)
gtk_label_set_markup (GTK_LABEL (priv->label),
g_value_get_string (value));
      else
gtk_label_set_text (GTK_LABEL (priv->label),
g_value_get_string (value));
      break;
    case PROP_USE_MARKUP:
      priv->has_primary_markup = g_value_get_boolean (value) != FALSE;
      gtk_label_set_use_markup (GTK_LABEL (priv->label),
priv->has_primary_markup);
      setup_primary_label_font (dialog);
      break;
    case PROP_SECONDARY_TEXT:
      {
const gchar *txt = g_value_get_string (value);

if (gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)))
gtk_label_set_markup (GTK_LABEL (priv->secondary_label), txt);
else
gtk_label_set_text (GTK_LABEL (priv->secondary_label), txt);

if (txt)
{
priv->has_secondary_text = TRUE;
gtk_widget_show (priv->secondary_label);
}
else
{
priv->has_secondary_text = FALSE;
gtk_widget_hide (priv->secondary_label);
}
setup_primary_label_font (dialog);
      }
      break;
    case PROP_SECONDARY_USE_MARKUP:
      gtk_label_set_use_markup (GTK_LABEL (priv->secondary_label),
g_value_get_boolean (value));
      break;
    case PROP_IMAGE:
      gtk_message_dialog_set_image (dialog, g_value_get_object (value));
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
gtk_message_dialog_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
  GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (object);
  GtkMessageDialogPrivate *priv = dialog->priv;

  switch (prop_id)
    {
    case PROP_MESSAGE_TYPE:
      g_value_set_enum (value, (GtkMessageType) priv->message_type);
      break;
    case PROP_TEXT:
      g_value_set_string (value, gtk_label_get_label (GTK_LABEL (priv->label)));
      break;
    case PROP_USE_MARKUP:
      g_value_set_boolean (value, priv->has_primary_markup);
      break;
    case PROP_SECONDARY_TEXT:
      if (priv->has_secondary_text)
      g_value_set_string (value,
gtk_label_get_label (GTK_LABEL (priv->secondary_label)));
      else
g_value_set_string (value, NULL);
      break;
    case PROP_SECONDARY_USE_MARKUP:
      if (priv->has_secondary_text)
g_value_set_boolean (value,
gtk_label_get_use_markup (GTK_LABEL (priv->secondary_label)));
      else
g_value_set_boolean (value, FALSE);
      break;
    case PROP_IMAGE:
      g_value_set_object (value, priv->image);
      break;
    case PROP_MESSAGE_AREA:
      g_value_set_object (value, priv->message_area);
      break;
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

/**
* gtk_message_dialog_new:
* @parent: (allow-none): transient parent, or %NULL for none
* @flags: flags
* @type: type of message
* @buttons: set of buttons to use
* @message_format: (allow-none): printf()-style format string, or %NULL
* @Varargs: arguments for @message_format
*
* Creates a new message dialog, which is a simple dialog with an icon
* indicating the dialog type (error, warning, etc.) and some text the
* user may want to see. When the user clicks a button a "response"
* signal is emitted with response IDs from #GtkResponseType. See
* #GtkDialog for more details.
*
* Return value: (transfer none): a new #GtkMessageDialog
**/
GtkWidget*
gtk_message_dialog_new (GtkWindow *parent,
                        GtkDialogFlags flags,
                        GtkMessageType type,
                        GtkButtonsType buttons,
                        const gchar *message_format,
                        ...)
{
  GtkWidget *widget;
  GtkDialog *dialog;
  gchar* msg = NULL;
  va_list args;

  g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);

  widget = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
"message-type", type,
"buttons", buttons,
NULL);
  dialog = GTK_DIALOG (widget);

  if (message_format)
    {
      va_start (args, message_format);
      msg = g_strdup_vprintf (message_format, args);
      va_end (args);

      gtk_label_set_text (GTK_LABEL (GTK_MESSAGE_DIALOG (widget)->priv->label),
                          msg);

      g_free (msg);
    }

  if (parent != NULL)
    gtk_window_set_transient_for (GTK_WINDOW (widget),
                                  GTK_WINDOW (parent));
  
  if (flags & GTK_DIALOG_MODAL)
    gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);

  if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
    gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);

  return widget;
}

/**
* gtk_message_dialog_new_with_markup:
* @parent: (allow-none): transient parent, or %NULL for none
* @flags: flags
* @type: type of message
* @buttons: set of buttons to use
* @message_format: (allow-none): printf()-style format string, or %NULL
* @Varargs: arguments for @message_format
*
* Creates a new message dialog, which is a simple dialog with an icon
* indicating the dialog type (error, warning, etc.) and some text which
* is marked up with the <link linkend="PangoMarkupFormat">Pango text markup language</link>.
* When the user clicks a button a "response" signal is emitted with
* response IDs from #GtkResponseType. See #GtkDialog for more details.
*
* Special XML characters in the printf() arguments passed to this
* function will automatically be escaped as necessary.
* (See g_markup_printf_escaped() for how this is implemented.)
* Usually this is what you want, but if you have an existing
* Pango markup string that you want to use literally as the
* label, then you need to use gtk_message_dialog_set_markup()
* instead, since you can't pass the markup string either
* as the format (it might contain '%' characters) or as a string
* argument.
* |[
* GtkWidget *dialog;
* dialog = gtk_message_dialog_new (main_application_window,
* GTK_DIALOG_DESTROY_WITH_PARENT,
* GTK_MESSAGE_ERROR,
* GTK_BUTTONS_CLOSE,
* NULL);
* gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
* markup);
* ]|
*
* Return value: a new #GtkMessageDialog
*
* Since: 2.4
**/
GtkWidget*
gtk_message_dialog_new_with_markup (GtkWindow *parent,
                                    GtkDialogFlags flags,
                                    GtkMessageType type,
                                    GtkButtonsType buttons,
                                    const gchar *message_format,
                                    ...)
{
  GtkWidget *widget;
  va_list args;
  gchar *msg = NULL;

  g_return_val_if_fail (parent == NULL || GTK_IS_WINDOW (parent), NULL);

  widget = gtk_message_dialog_new (parent, flags, type, buttons, NULL);

  if (message_format)
    {
      va_start (args, message_format);
      msg = g_markup_vprintf_escaped (message_format, args);
      va_end (args);

      gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (widget), msg);

      g_free (msg);
    }

  return widget;
}

/**
* gtk_message_dialog_set_image:
* @dialog: a #GtkMessageDialog
* @image: the image
*
* Sets the dialog's image to @image.
*
* Since: 2.10
**/
void
gtk_message_dialog_set_image (GtkMessageDialog *dialog,
GtkWidget *image)
{
  GtkMessageDialogPrivate *priv;
  GtkWidget *parent;

  g_return_if_fail (GTK_IS_MESSAGE_DIALOG (dialog));
  g_return_if_fail (image == NULL || GTK_IS_WIDGET (image));

  priv = dialog->priv;

  if (image == NULL)
    {
      image = gtk_image_new_from_stock (NULL, GTK_ICON_SIZE_DIALOG);
      gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
      gtk_widget_set_valign (image, GTK_ALIGN_START);
    }

  priv->message_type = GTK_MESSAGE_OTHER;

  parent = gtk_widget_get_parent (priv->image);
  gtk_container_add (GTK_CONTAINER (parent), image);
  gtk_container_remove (GTK_CONTAINER (parent), priv->image);
  gtk_box_reorder_child (GTK_BOX (parent), image, 0);

  priv->image = image;

  g_object_notify (G_OBJECT (dialog), "image");
}

/**
* gtk_message_dialog_get_image:
* @dialog: a #GtkMessageDialog
*
* Gets the dialog's image.
*
* Return value: (transfer none): the dialog's image
*
* Since: 2.14
**/
GtkWidget *
gtk_message_dialog_get_image (GtkMessageDialog *dialog)
{
  g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (dialog), NULL);

  return dialog->priv->image;
}

/**
* gtk_message_dialog_set_markup:
* @message_dialog: a #GtkMessageDialog
* @str: markup string (see <link linkend="PangoMarkupFormat">Pango markup format</link>)
*
* Sets the text of the message dialog to be @str, which is marked
* up with the <link linkend="PangoMarkupFormat">Pango text markup
* language</link>.
*
* Since: 2.4
**/
void
gtk_message_dialog_set_markup (GtkMessageDialog *message_dialog,
                               const gchar *str)
{
  GtkMessageDialogPrivate *priv;

  g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));

  priv = message_dialog->priv;

  priv->has_primary_markup = TRUE;
  gtk_label_set_markup (GTK_LABEL (priv->label), str);
}

/**
* gtk_message_dialog_format_secondary_text:
* @message_dialog: a #GtkMessageDialog
* @message_format: (allow-none): printf()-style format string, or %NULL
* @Varargs: arguments for @message_format
*
* Sets the secondary text of the message dialog to be @message_format
* (with printf()-style).
*
* Note that setting a secondary text makes the primary text become
* bold, unless you have provided explicit markup.
*
* Since: 2.6
**/
void
gtk_message_dialog_format_secondary_text (GtkMessageDialog *message_dialog,
                                          const gchar *message_format,
                                          ...)
{
  va_list args;
  gchar *msg = NULL;
  GtkMessageDialogPrivate *priv;

  g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));

  priv = message_dialog->priv;

  if (message_format)
    {
      priv->has_secondary_text = TRUE;

      va_start (args, message_format);
      msg = g_strdup_vprintf (message_format, args);
      va_end (args);

      gtk_widget_show (priv->secondary_label);
      gtk_label_set_text (GTK_LABEL (priv->secondary_label), msg);

      g_free (msg);
    }
  else
    {
      priv->has_secondary_text = FALSE;
      gtk_widget_hide (priv->secondary_label);
    }

  setup_primary_label_font (message_dialog);
}

/**
* gtk_message_dialog_format_secondary_markup:
* @message_dialog: a #GtkMessageDialog
* @message_format: printf()-style markup string (see
<link linkend="PangoMarkupFormat">Pango markup format</link>), or %NULL
* @Varargs: arguments for @message_format
*
* Sets the secondary text of the message dialog to be @message_format (with
* printf()-style), which is marked up with the
* <link linkend="PangoMarkupFormat">Pango text markup language</link>.
*
* Note that setting a secondary text makes the primary text become
* bold, unless you have provided explicit markup.
*
* Due to an oversight, this function does not escape special XML characters
* like gtk_message_dialog_new_with_markup() does. Thus, if the arguments
* may contain special XML characters, you should use g_markup_printf_escaped()
* to escape it.

* <informalexample><programlisting>
* gchar *msg;
*
* msg = g_markup_printf_escaped (message_format, ...);
* gtk_message_dialog_format_secondary_markup (message_dialog, "&percnt;s", msg);
* g_free (msg);
* </programlisting></informalexample>
*
* Since: 2.6
**/
void
gtk_message_dialog_format_secondary_markup (GtkMessageDialog *message_dialog,
                                            const gchar *message_format,
                                            ...)
{
  va_list args;
  gchar *msg = NULL;
  GtkMessageDialogPrivate *priv;

  g_return_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog));

  priv = message_dialog->priv;

  if (message_format)
    {
      priv->has_secondary_text = TRUE;

      va_start (args, message_format);
      msg = g_strdup_vprintf (message_format, args);
      va_end (args);

      gtk_widget_show (priv->secondary_label);
      gtk_label_set_markup (GTK_LABEL (priv->secondary_label), msg);

      g_free (msg);
    }
  else
    {
      priv->has_secondary_text = FALSE;
      gtk_widget_hide (priv->secondary_label);
    }

  setup_primary_label_font (message_dialog);
}

/**
* gtk_message_dialog_get_message_area:
* @message_dialog: a #GtkMessageDialog
*
* Returns the message area of the dialog. This is the box where the
* dialog's primary and secondary labels are packed. You can add your
* own extra content to that box and it will appear below those labels,
* on the right side of the dialog's image (or on the left for right-to-left
* languages). See gtk_dialog_get_content_area() for the corresponding
* function in the parent #GtkDialog.
*
* Return value: (transfer none): A #GtkVBox corresponding to the
* "message area" in the @message_dialog.
*
* Since: 2.22
**/
GtkWidget *
gtk_message_dialog_get_message_area (GtkMessageDialog *message_dialog)
{
  g_return_val_if_fail (GTK_IS_MESSAGE_DIALOG (message_dialog), NULL);

  return message_dialog->priv->message_area;
}

static void
gtk_message_dialog_add_buttons (GtkMessageDialog* message_dialog,
GtkButtonsType buttons)
{
  GtkDialog* dialog = GTK_DIALOG (message_dialog);

  switch (buttons)
    {
    case GTK_BUTTONS_NONE:
      /* nothing */
      break;

    case GTK_BUTTONS_OK:
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_OK,
                             GTK_RESPONSE_OK);
      break;

    case GTK_BUTTONS_CLOSE:
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_CLOSE,
                             GTK_RESPONSE_CLOSE);
      break;

    case GTK_BUTTONS_CANCEL:
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_CANCEL,
                             GTK_RESPONSE_CANCEL);
      break;

    case GTK_BUTTONS_YES_NO:
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_NO,
                             GTK_RESPONSE_NO);
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_YES,
                             GTK_RESPONSE_YES);
      gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_YES,
GTK_RESPONSE_NO,
-1);
      break;

    case GTK_BUTTONS_OK_CANCEL:
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_CANCEL,
                             GTK_RESPONSE_CANCEL);
      gtk_dialog_add_button (dialog,
                             GTK_STOCK_OK,
                             GTK_RESPONSE_OK);
      gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
      break;
      
    default:
      g_warning ("Unknown GtkButtonsType");
      break;
    }

  g_object_notify (G_OBJECT (message_dialog), "buttons");
}

static void
gtk_message_dialog_style_updated (GtkWidget *widget)
{
  GtkMessageDialog *dialog = GTK_MESSAGE_DIALOG (widget);
  GtkWidget *parent;
  gint border_width;

  parent = gtk_widget_get_parent (gtk_message_dialog_get_image (dialog));

  if (parent)
    {
      gtk_widget_style_get (widget, "message-border",
                            &border_width, NULL);

      gtk_container_set_border_width (GTK_CONTAINER (parent),
                                      MAX (0, border_width - 7));
    }

  setup_primary_label_font (dialog);

  GTK_WIDGET_CLASS (gtk_message_dialog_parent_class)->style_updated (widget);
}
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