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 <glib/gi18n.h>
  26 #include <gtk/gtk.h>
  27 #include <glade/glade.h>
  28
  29 #include "ev-properties-fonts.h"
  30 #include "ev-document-fonts.h"
  31 #include "ev-jobs.h"
  32 #include "ev-job-scheduler.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                 g_signal_handlers_disconnect_by_func (properties->fonts_job,
  67                                                       job_fonts_finished_cb,
  68                                                       properties);
  69                 ev_job_cancel (properties->fonts_job);
  70
  71                 g_object_unref (properties->fonts_job);
  72                 properties->fonts_job = NULL;
  73         }
  74
  75         G_OBJECT_CLASS (ev_properties_fonts_parent_class)->dispose (object);
  76 }
  77
  78 static void
  79 ev_properties_fonts_class_init (EvPropertiesFontsClass *properties_class)
  80 {
  81         GObjectClass *g_object_class = G_OBJECT_CLASS (properties_class);
  82
  83         g_object_class->dispose = ev_properties_fonts_dispose;
  84 }
  85
  86 static void
  87 font_cell_data_func (GtkTreeViewColumn *col, GtkCellRenderer *renderer,
  88                      GtkTreeModel *model, GtkTreeIter *iter, gpointer user_data)
  89 {
  90         char *name;
  91         char *details;
  92         char *markup;
  93
  94         gtk_tree_model_get(model, iter,
  95                            EV_DOCUMENT_FONTS_COLUMN_NAME, &name,
  96                            EV_DOCUMENT_FONTS_COLUMN_DETAILS, &details,
  97                            -1);
  98
  99         if (details) {
 100                 markup = g_strdup_printf ("<b><big>%s</big></b>\n<small>%s</small>",
 101                                           name, details);
 102         } else {
 103                 markup = g_strdup_printf ("<b><big>%s</big></b>", name);
 104         }
 105
 106         g_object_set (renderer, "markup", markup, NULL);
 107
 108         g_free (markup);
 109         g_free (details);
 110         g_free (name);
 111 }
 112
 113 static void
 114 ev_properties_fonts_init (EvPropertiesFonts *properties)
 115 {
 116         GladeXML *xml;
 117         GtkCellRenderer *renderer;
 118         GtkTreeViewColumn *column;
 119
 120         /* Create a new GladeXML object from XML file glade_file */
 121         xml = glade_xml_new (DATADIR "/evince-properties.glade", "fonts_page_root", NULL);
 122         properties->xml = xml;
 123         g_assert (xml != NULL);
 124
 125         gtk_box_pack_start (GTK_BOX (properties),
 126                             glade_xml_get_widget (xml, "fonts_page_root"),
 127                             TRUE, TRUE, 0);
 128
 129         properties->fonts_treeview = glade_xml_get_widget (xml, "fonts_treeview");
 130         properties->fonts_progress_label = glade_xml_get_widget (xml, "font_progress_label");
 131
 132         column = gtk_tree_view_column_new ();
 133         gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
 134         gtk_tree_view_append_column (GTK_TREE_VIEW (properties->fonts_treeview), column);
 135
 136         renderer = GTK_CELL_RENDERER (g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
 137                                                     "ypad", 6, NULL));
 138         gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
 139         gtk_tree_view_column_set_title (GTK_TREE_VIEW_COLUMN (column), _("Font"));
 140         gtk_tree_view_column_set_cell_data_func (column, renderer,
 141                                                  font_cell_data_func,
 142                                                  NULL, NULL);
 143 }
 144
 145 static void
 146 update_progress_label (GtkWidget *label, double progress)
 147 {
 148         if (progress > 0) {
 149                 char *progress_text;
 150                 progress_text = g_strdup_printf (_("Gathering font information... %3d%%"),
 151                                                  (int) (progress * 100));
 152                 gtk_label_set_text (GTK_LABEL (label), progress_text);
 153                 g_free (progress_text);
 154                 gtk_widget_show (label);
 155         } else {
 156                 gtk_widget_hide (label);
 157         }
 158 }
 159
 160 static void
 161 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties)
 162 {
 163         g_signal_handlers_disconnect_by_func (job, job_fonts_finished_cb, properties);
 164         g_object_unref (properties->fonts_job);
 165         properties->fonts_job = NULL;
 166 }
 167
 168 static void
 169 job_fonts_updated_cb (EvJobFonts *job, gdouble progress, EvPropertiesFonts *properties)
 170 {
 171         GtkTreeModel *model;
 172         EvDocumentFonts *document_fonts = EV_DOCUMENT_FONTS (properties->document);
 173
 174         update_progress_label (properties->fonts_progress_label, progress);
 175
 176         model = gtk_tree_view_get_model (GTK_TREE_VIEW (properties->fonts_treeview));
 177         /* Documen lock is already held by the jop */
 178         ev_document_fonts_fill_model (document_fonts, model);
 179 }
 180
 181 void
 182 ev_properties_fonts_set_document (EvPropertiesFonts *properties,
 183                                   EvDocument        *document)
 184 {
 185         GtkTreeView *tree_view = GTK_TREE_VIEW (properties->fonts_treeview);
 186         GtkListStore *list_store;
 187
 188         properties->document = document;
 189
 190         list_store = gtk_list_store_new (EV_DOCUMENT_FONTS_COLUMN_NUM_COLUMNS,
 191                                          G_TYPE_STRING, G_TYPE_STRING);
 192         gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
 193
 194         properties->fonts_job = ev_job_fonts_new (properties->document);
 195         g_signal_connect (properties->fonts_job, "updated",
 196                           G_CALLBACK (job_fonts_updated_cb),
 197                           properties);
 198         g_signal_connect (properties->fonts_job, "finished",
 199                           G_CALLBACK (job_fonts_finished_cb),
 200                           properties);
 201         ev_job_scheduler_push_job (properties->fonts_job, EV_JOB_PRIORITY_NONE);
 202 }
 203
 204 GtkWidget *
 205 ev_properties_fonts_new ()
 206 {
 207         EvPropertiesFonts *properties;
 208
 209         properties = g_object_new (EV_TYPE_PROPERTIES_FONTS, NULL);
 210
 211         return GTK_WIDGET (properties);
 212 }