shell/ev-properties-fonts.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *  Copyright (C) 2005 Red Hat, Inc
   5  *
   6  * Evince is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Evince is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include "ev-properties-fonts.h"
  26 #include "ev-document-fonts.h"
  27 #include "ev-jobs.h"
  28 #include "ev-job-queue.h"
  29
  30 #include <glib/gi18n.h>
  31 #include <gtk/gtktreeview.h>
  32 #include <glade/glade.h>
  33
  34 struct _EvPropertiesFonts {
  35         GtkVBox base_instance;
  36
  37         GladeXML *xml;
  38
  39         GtkWidget *fonts_treeview;
  40         GtkWidget *fonts_progress_label;
  41
  42         EvDocument *document;
  43 };
  44
  45 struct _EvPropertiesFontsClass {
  46         GtkVBoxClass base_class;
  47 };
  48
  49 G_DEFINE_TYPE (EvPropertiesFonts, ev_properties_fonts, GTK_TYPE_VBOX)
  50
  51 static void
  52 ev_properties_fonts_dispose (GObject *object)
  53 {
  54         EvPropertiesFonts *properties = EV_PROPERTIES_FONTS (object);
  55
  56         if (properties->xml) {
  57                 g_object_unref (properties->xml);
  58                 properties->xml = NULL;
  59         }
  60 }
  61
  62 static void
  63 ev_properties_fonts_class_init (EvPropertiesFontsClass *properties_class)
  64 {
  65         GObjectClass *g_object_class = G_OBJECT_CLASS (properties_class);
  66
  67         g_object_class->dispose = ev_properties_fonts_dispose;
  68 }
  69
  70 static void
  71 ev_properties_fonts_init (EvPropertiesFonts *properties)
  72 {
  73         GladeXML *xml;
  74         GtkCellRenderer *renderer;
  75         GtkTreeViewColumn *column;
  76
  77         /* Create a new GladeXML object from XML file glade_file */
  78         xml = glade_xml_new (DATADIR "/evince-properties.glade", "fonts_page_root", NULL);
  79         properties->xml = xml;
  80         g_assert (xml != NULL);
  81
  82         gtk_box_pack_start (GTK_BOX (properties),
  83                             glade_xml_get_widget (xml, "fonts_page_root"),
  84                             TRUE, TRUE, 0);
  85
  86         properties->fonts_treeview = glade_xml_get_widget (xml, "fonts_treeview");
  87         properties->fonts_progress_label = glade_xml_get_widget (xml, "font_progress_label");
  88
  89         column = gtk_tree_view_column_new ();
  90         gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
  91         gtk_tree_view_append_column (GTK_TREE_VIEW (properties->fonts_treeview), column);
  92
  93         renderer = gtk_cell_renderer_text_new ();
  94         gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
  95         gtk_tree_view_column_set_title (GTK_TREE_VIEW_COLUMN (column), _("Name"));
  96         gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
  97                                              "text", EV_DOCUMENT_FONTS_COLUMN_NAME,
  98                                              NULL);
  99 }
 100
 101 static void
 102 update_progress_label (GtkWidget *label, double progress)
 103 {
 104         if (progress > 0) {
 105                 char *progress_text;
 106                 progress_text = g_strdup_printf (_("Gathering font information... %3d%%"),
 107                                                  (int) (progress * 100));
 108                 gtk_label_set_text (GTK_LABEL (label), progress_text);
 109                 g_free (progress_text);
 110                 gtk_widget_show (label);
 111         } else {
 112                 gtk_widget_hide (label);
 113         }
 114 }
 115
 116 static void
 117 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties)
 118 {
 119         EvDocumentFonts *document_fonts = EV_DOCUMENT_FONTS (job->document);
 120         double progress;
 121
 122         progress = ev_document_fonts_get_progress (document_fonts);
 123         update_progress_label (properties->fonts_progress_label, progress);
 124
 125         if (EV_JOB_FONTS (job)->scan_completed) {
 126                 g_signal_handlers_disconnect_by_func
 127                                 (job, job_fonts_finished_cb, properties);
 128         } else {
 129                 GtkTreeModel *model;
 130                 EvJob *new_job;
 131
 132                 model = gtk_tree_view_get_model
 133                                 (GTK_TREE_VIEW (properties->fonts_treeview));
 134                 ev_document_doc_mutex_lock ();
 135                 ev_document_fonts_fill_model (document_fonts, model);
 136                 ev_document_doc_mutex_unlock ();
 137                 new_job = ev_job_fonts_new (job->document);
 138                 ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW);
 139                 g_object_unref (new_job);
 140         }
 141 }
 142
 143 void
 144 ev_properties_fonts_set_document (EvPropertiesFonts *properties,
 145                                   EvDocument        *document)
 146 {
 147         GtkTreeView *tree_view = GTK_TREE_VIEW (properties->fonts_treeview);
 148         GtkListStore *list_store;
 149         EvJob *job;
 150
 151         properties->document = document;
 152
 153         list_store = gtk_list_store_new (EV_DOCUMENT_FONTS_COLUMN_NUM_COLUMNS,
 154                                          G_TYPE_STRING);
 155         gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
 156
 157         job = ev_job_fonts_new (properties->document);
 158         g_signal_connect_object (job, "finished",
 159                                  G_CALLBACK (job_fonts_finished_cb),
 160                                  properties, 0);
 161         ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW);
 162         g_object_unref (job);
 163 }
 164
 165 GtkWidget *
 166 ev_properties_fonts_new ()
 167 {
 168         EvPropertiesFonts *properties;
 169
 170         properties = g_object_new (EV_TYPE_PROPERTIES_FONTS, NULL);
 171
 172         return GTK_WIDGET (properties);
 173 }