shell/ev-statusbar.c

   1 /* this file is part of evince, a gnome document viewer
   2  *
   3  *  Copyright (C) 2004 Red Hat, Inc.
   4  *
   5  *  Author:
   6  *    Jonathan Blandford <jrb@alum.mit.edu>
   7  *
   8  * Evince is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * Evince is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 #include <string.h>
  28 #include <gtk/gtk.h>
  29
  30 #include "ev-statusbar.h"
  31
  32 struct _EvStatusbarPrivate {
  33         GtkWidget *bar;
  34         GtkWidget *progress;
  35
  36         guint help_message_cid;
  37         guint view_message_cid;
  38         guint progress_message_cid;
  39
  40         guint pulse_timeout_id;
  41         guint progress_timeout_id;
  42 };
  43
  44 G_DEFINE_TYPE (EvStatusbar, ev_statusbar, GTK_TYPE_HBOX)
  45
  46 #define EV_STATUSBAR_GET_PRIVATE(object) \
  47                 (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_STATUSBAR, EvStatusbarPrivate))
  48
  49 static void
  50 ev_statusbar_destroy (GtkObject *object)
  51 {
  52         EvStatusbar *ev_statusbar = EV_STATUSBAR (object);
  53
  54         ev_statusbar_set_progress (ev_statusbar, FALSE);
  55
  56         (* GTK_OBJECT_CLASS (ev_statusbar_parent_class)->destroy) (object);
  57 }
  58
  59 static void
  60 ev_statusbar_class_init (EvStatusbarClass *ev_statusbar_class)
  61 {
  62         GObjectClass *g_object_class;
  63         GtkWidgetClass *widget_class;
  64         GtkObjectClass *gtk_object_klass;
  65
  66         g_object_class = G_OBJECT_CLASS (ev_statusbar_class);
  67         widget_class = GTK_WIDGET_CLASS (ev_statusbar_class);
  68         gtk_object_klass = GTK_OBJECT_CLASS (ev_statusbar_class);
  69
  70         g_type_class_add_private (g_object_class, sizeof (EvStatusbarPrivate));
  71
  72         gtk_object_klass->destroy = ev_statusbar_destroy;
  73 }
  74
  75 static void
  76 ev_statusbar_init (EvStatusbar *ev_statusbar)
  77 {
  78         ev_statusbar->priv = EV_STATUSBAR_GET_PRIVATE (ev_statusbar);
  79
  80         ev_statusbar->priv->progress = gtk_progress_bar_new ();
  81         gtk_box_pack_start (GTK_BOX (ev_statusbar), ev_statusbar->priv->progress, FALSE, FALSE, 3);
  82         ev_statusbar->priv->bar = gtk_statusbar_new ();
  83         gtk_box_pack_start (GTK_BOX (ev_statusbar), ev_statusbar->priv->bar, TRUE, TRUE, 0);
  84
  85         ev_statusbar->priv->help_message_cid = gtk_statusbar_get_context_id
  86                 (GTK_STATUSBAR (ev_statusbar->priv->bar), "help_message");
  87         ev_statusbar->priv->view_message_cid = gtk_statusbar_get_context_id
  88                 (GTK_STATUSBAR (ev_statusbar->priv->bar), "view_message");
  89         ev_statusbar->priv->progress_message_cid = gtk_statusbar_get_context_id
  90                 (GTK_STATUSBAR (ev_statusbar->priv->bar), "progress_message");
  91
  92         gtk_widget_show (GTK_WIDGET (ev_statusbar->priv->bar));
  93         gtk_widget_show (GTK_WIDGET (ev_statusbar));
  94
  95         ev_statusbar->priv->progress_timeout_id = 0;
  96         ev_statusbar->priv->pulse_timeout_id = 0;
  97 }
  98
  99 /* Public functions */
 100
 101 GtkWidget *
 102 ev_statusbar_new (void)
 103 {
 104         GtkWidget *ev_statusbar;
 105
 106         ev_statusbar = g_object_new (EV_TYPE_STATUSBAR, NULL);
 107
 108         return ev_statusbar;
 109 }
 110
 111 static guint
 112 ev_statusbar_get_context_id (EvStatusbar *statusbar, EvStatusbarContext context)
 113 {
 114     switch (context) {
 115         case EV_CONTEXT_HELP:
 116                 return statusbar->priv->help_message_cid;
 117         case EV_CONTEXT_VIEW:
 118                 return statusbar->priv->view_message_cid;
 119         case EV_CONTEXT_PROGRESS:
 120                 return statusbar->priv->progress_message_cid;
 121     }
 122     return -1;
 123 }
 124
 125 void
 126 ev_statusbar_push    (EvStatusbar *ev_statusbar,
 127                       EvStatusbarContext context,
 128                       const gchar *message)
 129 {
 130         gtk_statusbar_push (GTK_STATUSBAR (ev_statusbar->priv->bar),
 131                             ev_statusbar_get_context_id (ev_statusbar, context),
 132                             message);
 133         return;
 134 }
 135
 136 void
 137 ev_statusbar_pop     (EvStatusbar *ev_statusbar,
 138                       EvStatusbarContext context)
 139 {
 140         gtk_statusbar_pop (GTK_STATUSBAR (ev_statusbar->priv->bar),
 141                            ev_statusbar_get_context_id (ev_statusbar, context));
 142         return;
 143 }
 144
 145 void
 146 ev_statusbar_set_maximized (EvStatusbar *ev_statusbar,
 147                             gboolean maximized)
 148 {
 149        gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (ev_statusbar->priv->bar),
 150                                           maximized);
 151        return;
 152 }
 153
 154 static gboolean
 155 ev_statusbar_pulse (gpointer data)
 156 {
 157     EvStatusbar *ev_statusbar = EV_STATUSBAR (data);
 158
 159     gtk_progress_bar_pulse (GTK_PROGRESS_BAR (ev_statusbar->priv->progress));
 160
 161     return TRUE;
 162 }
 163
 164 static gboolean
 165 ev_statusbar_show_progress (gpointer data)
 166 {
 167     EvStatusbar *ev_statusbar = EV_STATUSBAR (data);
 168
 169     gtk_widget_show (ev_statusbar->priv->progress);
 170     ev_statusbar->priv->pulse_timeout_id = g_timeout_add (300, ev_statusbar_pulse, ev_statusbar);
 171     ev_statusbar->priv->progress_timeout_id = 0;
 172
 173     return FALSE;
 174 }
 175
 176 void
 177 ev_statusbar_set_progress  (EvStatusbar *ev_statusbar,
 178                             gboolean active)
 179 {
 180     if (active){
 181             if (ev_statusbar->priv->progress_timeout_id == 0
 182                         && ev_statusbar->priv->pulse_timeout_id == 0)
 183                     ev_statusbar->priv->progress_timeout_id =
 184                             g_timeout_add (500, ev_statusbar_show_progress, ev_statusbar);
 185     } else {
 186             if (ev_statusbar->priv->pulse_timeout_id) {
 187                     g_source_remove (ev_statusbar->priv->pulse_timeout_id);
 188                     gtk_widget_hide (ev_statusbar->priv->progress);
 189             }
 190
 191             if (ev_statusbar->priv->progress_timeout_id)
 192                     g_source_remove (ev_statusbar->priv->progress_timeout_id);
 193
 194             ev_statusbar->priv->progress_timeout_id = 0;
 195             ev_statusbar->priv->pulse_timeout_id = 0;
 196
 197     }
 198 }
 199
 200
 201