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 enum
  35 {
  36         FONT_NAME_COL,
  37         NUM_COLS
  38 };
  39
  40 struct _EvPropertiesFonts {
  41         GtkVBox base_instance;
  42
  43         GladeXML *xml;
  44
  45         GtkWidget *fonts_treeview;
  46         GtkWidget *fonts_progress_label;
  47
  48         EvDocument *document;
  49 };
  50
  51 struct _EvPropertiesFontsClass {
  52         GtkVBoxClass base_class;
  53 };
  54
  55 G_DEFINE_TYPE (EvPropertiesFonts, ev_properties_fonts, GTK_TYPE_VBOX)
  56
  57 static void
  58 ev_properties_fonts_dispose (GObject *object)
  59 {
  60         EvPropertiesFonts *properties = EV_PROPERTIES_FONTS (object);
  61
  62         if (properties->xml) {
  63                 g_object_unref (properties->xml);
  64                 properties->xml = NULL;
  65         }
  66 }
  67
  68 static void
  69 ev_properties_fonts_class_init (EvPropertiesFontsClass *properties_class)
  70 {
  71         GObjectClass *g_object_class = G_OBJECT_CLASS (properties_class);
  72
  73         g_object_class->dispose = ev_properties_fonts_dispose;
  74 }
  75
  76 static void
  77 ev_properties_fonts_init (EvPropertiesFonts *properties)
  78 {
  79         GladeXML *xml;
  80         GtkCellRenderer *renderer;
  81         GtkTreeViewColumn *column;
  82
  83         /* Create a new GladeXML object from XML file glade_file */
  84         xml = glade_xml_new (DATADIR "/evince-properties.glade", "fonts_page_root", NULL);
  85         properties->xml = xml;
  86         g_assert (xml != NULL);
  87
  88         gtk_box_pack_start (GTK_BOX (properties),
  89                             glade_xml_get_widget (xml, "fonts_page_root"),
  90                             TRUE, TRUE, 0);
  91
  92         properties->fonts_treeview = glade_xml_get_widget (xml, "fonts_treeview");
  93         properties->fonts_progress_label = glade_xml_get_widget (xml, "font_progress_label");
  94
  95         column = gtk_tree_view_column_new ();
  96         gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
  97         gtk_tree_view_append_column (GTK_TREE_VIEW (properties->fonts_treeview), column);
  98
  99         renderer = gtk_cell_renderer_text_new ();
 100         gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
 101         gtk_tree_view_column_set_title (GTK_TREE_VIEW_COLUMN (column), _("Name"));
 102         gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
 103                                              "text", EV_DOCUMENT_FONTS_COLUMN_NAME,
 104                                              NULL);
 105 }
 106
 107 static void
 108 update_progress_label (GtkWidget *label, double progress)
 109 {
 110         if (progress > 0) {
 111                 char *progress_text;
 112                 progress_text = g_strdup_printf (_("Gathering font information... %3d%%"),
 113                                                  (int) (progress * 100));
 114                 gtk_label_set_text (GTK_LABEL (label), progress_text);
 115                 g_free (progress_text);
 116                 gtk_widget_show (label);
 117         } else {
 118                 gtk_widget_hide (label);
 119         }
 120 }
 121
 122 static void
 123 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties)
 124 {
 125         EvDocumentFonts *document_fonts = EV_DOCUMENT_FONTS (job->document);
 126         double progress;
 127
 128         progress = ev_document_fonts_get_progress (document_fonts);
 129         update_progress_label (properties->fonts_progress_label, progress);
 130
 131         if (EV_JOB_FONTS (job)->scan_completed) {
 132                 g_signal_handlers_disconnect_by_func
 133                                 (job, job_fonts_finished_cb, properties);
 134         } else {
 135                 GtkTreeModel *model;
 136                 EvJob *new_job;
 137
 138                 model = gtk_tree_view_get_model
 139                                 (GTK_TREE_VIEW (properties->fonts_treeview));
 140                 ev_document_doc_mutex_lock ();
 141                 ev_document_fonts_fill_model (document_fonts, model);
 142                 ev_document_doc_mutex_unlock ();
 143                 new_job = ev_job_fonts_new (job->document);
 144                 ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW);
 145                 g_object_unref (new_job);
 146         }
 147 }
 148
 149 void
 150 ev_properties_fonts_set_document (EvPropertiesFonts *properties,
 151                                   EvDocument        *document)
 152 {
 153         GtkTreeView *tree_view = GTK_TREE_VIEW (properties->fonts_treeview);
 154         GtkListStore *list_store;
 155         EvJob *job;
 156
 157         properties->document = document;
 158
 159         list_store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING);
 160         gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
 161
 162         job = ev_job_fonts_new (properties->document);
 163         g_signal_connect_object (job, "finished",
 164                                  G_CALLBACK (job_fonts_finished_cb),
 165                                  properties, 0);
 166         ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW);
 167         g_object_unref (job);
 168 }
 169
 170 GtkWidget *
 171 ev_properties_fonts_new ()
 172 {
 173         EvPropertiesFonts *properties;
 174
 175         properties = g_object_new (EV_TYPE_PROPERTIES_FONTS, NULL);
 176
 177         return GTK_WIDGET (properties);
 178 }