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eog-error-message-area.c

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/* Eye Of Gnome - Erro Message Area
 *
 * Copyright (C) 2007 The Free Software Foundation
 *
 * Author: Lucas Rocha <lucasr@gnome.org>
 *
 * Based on gedit code (gedit/gedit-message-area.h) by:
 *    - Paolo Maggi <paolo@gnome.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "eog-error-message-area.h"
#include "eog-image.h"

#include <glib.h>
#include <glib/gi18n.h>
#include <glib-object.h>
#include <gtk/gtk.h>

static void
set_message_area_text_and_icon (GtkInfoBar   *message_area,
                        const gchar  *icon_stock_id,
                        const gchar  *primary_text,
                        const gchar  *secondary_text)
{
      GtkWidget *hbox_content;
      GtkWidget *image;
      GtkWidget *vbox;
      gchar *primary_markup;
      gchar *secondary_markup;
      GtkWidget *primary_label;
      GtkWidget *secondary_label;

      hbox_content = gtk_hbox_new (FALSE, 8);
      gtk_widget_show (hbox_content);

      image = gtk_image_new_from_stock (icon_stock_id, GTK_ICON_SIZE_DIALOG);
      gtk_widget_show (image);
      gtk_box_pack_start (GTK_BOX (hbox_content), image, FALSE, FALSE, 0);
      gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0);

      vbox = gtk_vbox_new (FALSE, 6);
      gtk_widget_show (vbox);
      gtk_box_pack_start (GTK_BOX (hbox_content), vbox, TRUE, TRUE, 0);

      primary_markup = g_strdup_printf ("<b>%s</b>", primary_text);
      primary_label = gtk_label_new (primary_markup);
      g_free (primary_markup);

      gtk_widget_show (primary_label);

      gtk_box_pack_start (GTK_BOX (vbox), primary_label, TRUE, TRUE, 0);
      gtk_label_set_use_markup (GTK_LABEL (primary_label), TRUE);
      gtk_label_set_line_wrap (GTK_LABEL (primary_label), FALSE);
      gtk_misc_set_alignment (GTK_MISC (primary_label), 0, 0.5);

      gtk_widget_set_can_focus (primary_label, TRUE);

      gtk_label_set_selectable (GTK_LABEL (primary_label), TRUE);

      if (secondary_text != NULL) {
            secondary_markup = g_strdup_printf ("<small>%s</small>",
                                        secondary_text);
            secondary_label = gtk_label_new (secondary_markup);
            g_free (secondary_markup);

            gtk_widget_show (secondary_label);

            gtk_box_pack_start (GTK_BOX (vbox), secondary_label, TRUE, TRUE, 0);

            gtk_widget_set_can_focus (secondary_label, TRUE);

            gtk_label_set_use_markup (GTK_LABEL (secondary_label), TRUE);
            gtk_label_set_line_wrap (GTK_LABEL (secondary_label), TRUE);
            gtk_label_set_selectable (GTK_LABEL (secondary_label), TRUE);
            gtk_misc_set_alignment (GTK_MISC (secondary_label), 0, 0.5);
      }

      gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (message_area))), hbox_content, TRUE, TRUE, 0);
}

static GtkWidget *
create_error_message_area (const gchar *primary_text,
                     const gchar *secondary_text,
                     gboolean     recoverable)
{
      GtkWidget *message_area;

      if (recoverable)
            message_area = gtk_info_bar_new_with_buttons (_("_Retry"),
                                                GTK_RESPONSE_OK,
                                                NULL);
      else
            message_area = gtk_info_bar_new ();

      gtk_info_bar_set_message_type (GTK_INFO_BAR (message_area),
                               GTK_MESSAGE_ERROR);

      set_message_area_text_and_icon (GTK_INFO_BAR (message_area),
                              GTK_STOCK_DIALOG_ERROR,
                              primary_text,
                              secondary_text);

      return message_area;
}

/**
 * eog_image_load_error_message_area_new: (skip):
 * @caption: 
 * @error: 
 *
 * 
 *
 * Returns: (transfer full): a new #GtkInfoBar
 **/
GtkWidget *
00134 eog_image_load_error_message_area_new (const gchar  *caption,
                               const GError *error)
{
      GtkWidget *message_area;
      gchar *error_message = NULL;
      gchar *message_details = NULL;
      gchar *pango_escaped_caption = NULL;

      g_return_val_if_fail (caption != NULL, NULL);
      g_return_val_if_fail (error != NULL, NULL);

      /* Escape the caption string with respect to pango markup.
         This is necessary because otherwise characters like "&" will
         be interpreted as the beginning of a pango entity inside
         the message area GtkLabel. */
      pango_escaped_caption = g_markup_escape_text (caption, -1);
      error_message = g_strdup_printf (_("Could not load image '%s'."),
                               pango_escaped_caption);

      message_details = g_strdup (error->message);

      message_area = create_error_message_area (error_message,
                                      message_details,
                                      TRUE);

      g_free (pango_escaped_caption);
      g_free (error_message);
      g_free (message_details);

      return message_area;
}

/**
 * eog_no_images_error_message_area_new: (skip):
 * @file: 
 *
 * 
 *
 * Returns: (transfer full): a new #GtkInfoBar
 **/
GtkWidget *
eog_no_images_error_message_area_new (GFile *file)
{
      GtkWidget *message_area;
      gchar *error_message = NULL;

      if (file != NULL) {
            gchar *uri_str, *unescaped_str, *pango_escaped_str;

            uri_str = g_file_get_uri (file);
            /* Unescape URI with respect to rules defined in RFC 3986. */
            unescaped_str = g_uri_unescape_string (uri_str, NULL);

            /* Escape the URI string with respect to pango markup.
               This is necessary because the URI string can contain
               for example "&" which will otherwise be interpreted
               as a pango markup entity when inserted into a GtkLabel. */
            pango_escaped_str = g_markup_escape_text (unescaped_str, -1);
            error_message = g_strdup_printf (_("No images found in '%s'."),
                                     pango_escaped_str);

            g_free (pango_escaped_str);
            g_free (uri_str);
            g_free (unescaped_str);
      } else {
            error_message = g_strdup (_("The given locations contain no images."));
      }

      message_area = create_error_message_area (error_message,
                                      NULL,
                                      FALSE);

      g_free (error_message);

      return message_area;
}

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