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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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
  28 #include "ev-document-fonts.h"
  29 #include "ev-job-scheduler.h"
  30 #include "ev-jobs.h"
  31 #include "ev-properties-fonts.h"
  32
  33 struct _EvPropertiesFonts {
  34         GtkVBox base_instance;
  35
  36         GtkWidget *fonts_treeview;
  37         GtkWidget *fonts_progress_label;
  38         EvJob     *fonts_job;
  39
  40         EvDocument *document;
  41 };
  42
  43 struct _EvPropertiesFontsClass {
  44         GtkVBoxClass base_class;
  45 };
  46
  47 static void
  48 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties);
  49
  50 G_DEFINE_TYPE (EvPropertiesFonts, ev_properties_fonts, GTK_TYPE_VBOX)
  51
  52 static void
  53 ev_properties_fonts_dispose (GObject *object)
  54 {
  55         EvPropertiesFonts *properties = EV_PROPERTIES_FONTS (object);
  56
  57         if (properties->fonts_job) {
  58                 g_signal_handlers_disconnect_by_func (properties->fonts_job,
  59                                                       job_fonts_finished_cb,
  60                                                       properties);
  61                 ev_job_cancel (properties->fonts_job);
  62
  63                 g_object_unref (properties->fonts_job);
  64                 properties->fonts_job = NULL;
  65         }
  66
  67         G_OBJECT_CLASS (ev_properties_fonts_parent_class)->dispose (object);
  68 }
  69
  70 static void
  71 ev_properties_fonts_class_init (EvPropertiesFontsClass *properties_class)
  72 {
  73         GObjectClass *g_object_class = G_OBJECT_CLASS (properties_class);
  74
  75         g_object_class->dispose = ev_properties_fonts_dispose;
  76 }
  77
  78 static void
  79 font_cell_data_func (GtkTreeViewColumn *col, GtkCellRenderer *renderer,
  80                      GtkTreeModel *model, GtkTreeIter *iter, gpointer user_data)
  81 {
  82         char *name;
  83         char *details;
  84         char *markup;
  85
  86         gtk_tree_model_get (model, iter,
  87                             EV_DOCUMENT_FONTS_COLUMN_NAME, &name,
  88                             EV_DOCUMENT_FONTS_COLUMN_DETAILS, &details,
  89                             -1);
  90
  91         if (details) {
  92                 markup = g_strdup_printf ("<b><big>%s</big></b>\n<small>%s</small>",
  93                                           name, details);
  94         } else {
  95                 markup = g_strdup_printf ("<b><big>%s</big></b>", name);
  96         }
  97
  98         g_object_set (renderer, "markup", markup, NULL);
  99
 100         g_free (markup);
 101         g_free (details);
 102         g_free (name);
 103 }
 104
 105 static void
 106 ev_properties_fonts_init (EvPropertiesFonts *properties)
 107 {
 108         GtkWidget         *swindow;
 109         GtkCellRenderer   *renderer;
 110         GtkTreeViewColumn *column;
 111
 112         gtk_container_set_border_width (GTK_CONTAINER (properties), 12);
 113         gtk_box_set_spacing (GTK_BOX (properties), 6);
 114
 115         swindow = gtk_scrolled_window_new (NULL, NULL);
 116         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swindow),
 117                                         GTK_POLICY_AUTOMATIC,
 118                                         GTK_POLICY_AUTOMATIC);
 119         gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (swindow),
 120                                              GTK_SHADOW_IN);
 121
 122         properties->fonts_treeview = gtk_tree_view_new ();
 123         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (properties->fonts_treeview),
 124                                            FALSE);
 125         column = gtk_tree_view_column_new ();
 126         gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
 127         gtk_tree_view_append_column (GTK_TREE_VIEW (properties->fonts_treeview),
 128                                      column);
 129
 130         renderer = GTK_CELL_RENDERER (g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
 131                                                     "ypad", 6, NULL));
 132         gtk_tree_view_column_pack_start (GTK_TREE_VIEW_COLUMN (column),
 133                                          renderer, FALSE);
 134         gtk_tree_view_column_set_title (GTK_TREE_VIEW_COLUMN (column),
 135                                         _("Font"));
 136         gtk_tree_view_column_set_cell_data_func (column, renderer,
 137                                                  font_cell_data_func,
 138                                                  NULL, NULL);
 139
 140         gtk_container_add (GTK_CONTAINER (swindow), properties->fonts_treeview);
 141         gtk_widget_show (properties->fonts_treeview);
 142
 143         gtk_box_pack_start (GTK_BOX (properties), swindow,
 144                             TRUE, TRUE, 0);
 145         gtk_widget_show (swindow);
 146
 147         properties->fonts_progress_label = gtk_label_new (NULL);
 148         g_object_set (G_OBJECT (properties->fonts_progress_label),
 149                       "xalign", 0.0,
 150                       NULL);
 151         gtk_box_pack_start (GTK_BOX (properties),
 152                             properties->fonts_progress_label,
 153                             FALSE, FALSE, 0);
 154         gtk_widget_show (properties->fonts_progress_label);
 155 }
 156
 157 static void
 158 update_progress_label (GtkWidget *label, double progress)
 159 {
 160         if (progress > 0) {
 161                 char *progress_text;
 162                 progress_text = g_strdup_printf (_("Gathering font information… %3d%%"),
 163                                                  (int) (progress * 100));
 164                 gtk_label_set_text (GTK_LABEL (label), progress_text);
 165                 g_free (progress_text);
 166                 gtk_widget_show (label);
 167         } else {
 168                 gtk_widget_hide (label);
 169         }
 170 }
 171
 172 static void
 173 job_fonts_finished_cb (EvJob *job, EvPropertiesFonts *properties)
 174 {
 175         g_signal_handlers_disconnect_by_func (job, job_fonts_finished_cb, properties);
 176         g_object_unref (properties->fonts_job);
 177         properties->fonts_job = NULL;
 178 }
 179
 180 static void
 181 job_fonts_updated_cb (EvJobFonts *job, gdouble progress, EvPropertiesFonts *properties)
 182 {
 183         GtkTreeModel *model;
 184         EvDocumentFonts *document_fonts = EV_DOCUMENT_FONTS (properties->document);
 185
 186         update_progress_label (properties->fonts_progress_label, progress);
 187
 188         model = gtk_tree_view_get_model (GTK_TREE_VIEW (properties->fonts_treeview));
 189         /* Documen lock is already held by the jop */
 190         ev_document_fonts_fill_model (document_fonts, model);
 191 }
 192
 193 void
 194 ev_properties_fonts_set_document (EvPropertiesFonts *properties,
 195                                   EvDocument        *document)
 196 {
 197         GtkTreeView *tree_view = GTK_TREE_VIEW (properties->fonts_treeview);
 198         GtkListStore *list_store;
 199
 200         properties->document = document;
 201
 202         list_store = gtk_list_store_new (EV_DOCUMENT_FONTS_COLUMN_NUM_COLUMNS,
 203                                          G_TYPE_STRING, G_TYPE_STRING);
 204         gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (list_store));
 205
 206         properties->fonts_job = ev_job_fonts_new (properties->document);
 207         g_signal_connect (properties->fonts_job, "updated",
 208                           G_CALLBACK (job_fonts_updated_cb),
 209                           properties);
 210         g_signal_connect (properties->fonts_job, "finished",
 211                           G_CALLBACK (job_fonts_finished_cb),
 212                           properties);
 213         ev_job_scheduler_push_job (properties->fonts_job, EV_JOB_PRIORITY_NONE);
 214 }
 215
 216 GtkWidget *
 217 ev_properties_fonts_new ()
 218 {
 219         EvPropertiesFonts *properties;
 220
 221         properties = g_object_new (EV_TYPE_PROPERTIES_FONTS, NULL);
 222
 223         return GTK_WIDGET (properties);
 224 }