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         EvJob     *fonts_job;
  42
  43         EvDocument *document;
  44 };
  45
  46 struct _EvPropertiesFontsClass {
  47         GtkVBoxClass base_class;
  48 };
  49
  50 static void
  51 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties);
  52
  53 G_DEFINE_TYPE (EvPropertiesFonts, ev_properties_fonts, GTK_TYPE_VBOX)
  54
  55 static void
  56 ev_properties_fonts_dispose (GObject *object)
  57 {
  58         EvPropertiesFonts *properties = EV_PROPERTIES_FONTS (object);
  59
  60         if (properties->xml) {
  61                 g_object_unref (properties->xml);
  62                 properties->xml = NULL;
  63         }
  64
  65         if (properties->fonts_job) {
  66
  67                 g_signal_handlers_disconnect_by_func
  68                                 (properties->fonts_job,
  69                                  job_fonts_finished_cb,
  70                                  properties);
  71                 ev_job_queue_remove_job (properties->fonts_job);
  72
  73                 g_object_unref (properties->fonts_job);
  74                 properties->fonts_job = NULL;
  75         }
  76
  77         G_OBJECT_CLASS (ev_properties_fonts_parent_class)->dispose (object);
  78 }
  79
  80 static void
  81 ev_properties_fonts_class_init (EvPropertiesFontsClass *properties_class)
  82 {
  83         GObjectClass *g_object_class = G_OBJECT_CLASS (properties_class);
  84
  85         g_object_class->dispose = ev_properties_fonts_dispose;
  86 }
  87
  88 static void
  89 font_cell_data_func (GtkTreeViewColumn *col, GtkCellRenderer *renderer,
  90                      GtkTreeModel *model, GtkTreeIter *iter, gpointer user_data)
  91 {
  92         char *name;
  93         char *details;
  94         char *markup;
  95
  96         gtk_tree_model_get(model, iter,
  97                            EV_DOCUMENT_FONTS_COLUMN_NAME, &name,
  98                            EV_DOCUMENT_FONTS_COLUMN_DETAILS, &details,
  99                            -1);
 100
 101         if (details) {
 102                 markup = g_strdup_printf ("<b><big>%s</big></b>\n<small>%s</small>",
 103                                           name, details);
 104         } else {
 105                 markup = g_strdup_printf ("<b><big>%s</big></b>", name);
 106         }
 107
 108         g_object_set (renderer, "markup", markup, NULL);
 109
 110         g_free (markup);
 111         g_free (details);
 112         g_free (name);
 113 }
 114
 115 static void
 116 ev_properties_fonts_init (EvPropertiesFonts *properties)
 117 {
 118         GladeXML *xml;
 119         GtkCellRenderer *renderer;
 120         GtkTreeViewColumn *column;
 121
 122         /* Create a new GladeXML object from XML file glade_file */
 123         xml = glade_xml_new (DATADIR "/evince-properties.glade", "fonts_page_root", NULL);
 124         properties->xml = xml;
 125         g_assert (xml != NULL);
 126
 127         gtk_box_pack_start (GTK_BOX (properties),
 128                             glade_xml_get_widget (xml, "fonts_page_root"),
 129                             TRUE, TRUE, 0);
 130
 131         properties->fonts_treeview = glade_xml_get_widget (xml, "fonts_treeview");
 132         properties->fonts_progress_label = glade_xml_get_widget (xml, "font_progress_label");
 133
 134         column = gtk_tree_view_column_new ();
 135         gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
 136         gtk_tree_view_append_column (GTK_TREE_VIEW (properties->fonts_treeview), column);
 137
 138         renderer = GTK_CELL_RENDERER (g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
 139                                                     "ypad", 6, NULL));
 140         gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
 141         gtk_tree_view_column_set_title (GTK_TREE_VIEW_COLUMN (column), _("Font"));
 142         gtk_tree_view_column_set_cell_data_func (column, renderer,
 143                                                  font_cell_data_func,
 144                                                  NULL, NULL);
 145 }
 146
 147 static void
 148 update_progress_label (GtkWidget *label, double progress)
 149 {
 150         if (progress > 0) {
 151                 char *progress_text;
 152                 progress_text = g_strdup_printf (_("Gathering font information... %3d%%"),
 153                                                  (int) (progress * 100));
 154                 gtk_label_set_text (GTK_LABEL (label), progress_text);
 155                 g_free (progress_text);
 156                 gtk_widget_show (label);
 157         } else {
 158                 gtk_widget_hide (label);
 159         }
 160 }
 161
 162 static void
 163 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties)
 164 {
 165         EvDocumentFonts *document_fonts = EV_DOCUMENT_FONTS (job->document);
 166         double progress;
 167
 168         progress = ev_document_fonts_get_progress (document_fonts);
 169         update_progress_label (properties->fonts_progress_label, progress);
 170
 171         if (EV_JOB_FONTS (job)->scan_completed) {
 172                 g_signal_handlers_disconnect_by_func
 173                                 (job, job_fonts_finished_cb, properties);
 174                 g_object_unref (properties->fonts_job);
 175                 properties->fonts_job = NULL;
 176         } else {
 177                 GtkTreeModel *model;
 178
 179                 model = gtk_tree_view_get_model
 180                                 (GTK_TREE_VIEW (properties->fonts_treeview));
 181                 ev_document_doc_mutex_lock ();
 182                 ev_document_fonts_fill_model (document_fonts, model);
 183                 ev_document_doc_mutex_unlock ();
 184
 185                 ev_job_queue_add_job (job, EV_JOB_PRIORITY_LOW);
 186         }
 187 }
 188
 189 void
 190 ev_properties_fonts_set_document (EvPropertiesFonts *properties,
 191                                   EvDocument        *document)
 192 {
 193         GtkTreeView *tree_view = GTK_TREE_VIEW (properties->fonts_treeview);
 194         GtkListStore *list_store;
 195
 196         properties->document = document;
 197
 198         list_store = gtk_list_store_new (EV_DOCUMENT_FONTS_COLUMN_NUM_COLUMNS,
 199                                          G_TYPE_STRING, G_TYPE_STRING);
 200         gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
 201
 202         properties->fonts_job = ev_job_fonts_new (properties->document);
 203         g_signal_connect (properties->fonts_job, "finished",
 204                           G_CALLBACK (job_fonts_finished_cb),
 205                           properties);
 206         ev_job_queue_add_job (properties->fonts_job, EV_JOB_PRIORITY_LOW);
 207 }
 208
 209 GtkWidget *
 210 ev_properties_fonts_new ()
 211 {
 212         EvPropertiesFonts *properties;
 213
 214         properties = g_object_new (EV_TYPE_PROPERTIES_FONTS, NULL);
 215
 216         return GTK_WIDGET (properties);
 217 }