src/vikstatus.c

   1 /*
   2  * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
   3  *
   4  * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
   5  * Copyright (C) 2011, Rob Norris <rw_norris@hotmail.com>
   6  * Copyright (C) 2012, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it 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  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU 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
  24 /* gtk status bars: just plain dumb. this file shouldn't have to exist.
  25    NB as of gtk 2.18 there are 'info bars' that could be useful... */
  26 #include <gtk/gtk.h>
  27
  28 #include <glib/gi18n.h>
  29
  30 #include <math.h>
  31
  32 #include "vikstatus.h"
  33 #include "background.h"
  34
  35 enum
  36 {
  37   CLICKED,
  38   LAST_SIGNAL
  39 };
  40
  41 struct _VikStatusbar {
  42   GtkHBox hbox;
  43   GtkWidget *status[VIK_STATUSBAR_NUM_TYPES];
  44   gboolean empty[VIK_STATUSBAR_NUM_TYPES];
  45 };
  46
  47 G_DEFINE_TYPE (VikStatusbar, vik_statusbar, GTK_TYPE_HBOX)
  48
  49 static guint vik_statusbar_signals[LAST_SIGNAL] = { 0 };
  50
  51 static gint
  52 forward_signal (GObject *object, gpointer user_data)
  53 {
  54     gint item = GPOINTER_TO_INT (g_object_get_data ( object, "type" ));
  55     VikStatusbar *vs = VIK_STATUSBAR (user_data);
  56
  57     // Clicking on the items field will bring up the background jobs window
  58     if ( item == VIK_STATUSBAR_ITEMS )
  59       a_background_show_window();
  60     else if ( item == VIK_STATUSBAR_INFO )
  61       // Clear current info message
  62       vik_statusbar_set_message ( vs, VIK_STATUSBAR_INFO, "" );
  63     else
  64       g_signal_emit (G_OBJECT (vs),
  65                      vik_statusbar_signals[CLICKED], 0,
  66                      item);
  67
  68     return TRUE;
  69 }
  70
  71 static void
  72 vik_statusbar_class_init (VikStatusbarClass *klass)
  73 {
  74   vik_statusbar_signals[CLICKED] =
  75     g_signal_new ("clicked",
  76                   G_TYPE_FROM_CLASS (klass),
  77                   G_SIGNAL_RUN_FIRST,
  78                   G_STRUCT_OFFSET (VikStatusbarClass, clicked),
  79                   NULL, NULL,
  80                   g_cclosure_marshal_VOID__INT,
  81                   G_TYPE_NONE, 1,
  82                   G_TYPE_INT);
  83
  84   klass->clicked = NULL;
  85 }
  86
  87 static gboolean button_release_event (GtkWidget* widget, GdkEvent *event, gpointer *user_data)
  88 {
  89   if ( ((GdkEventButton*)event)->button == 3 ) {
  90     gint type = GPOINTER_TO_INT (g_object_get_data ( G_OBJECT(widget), "type" ));
  91     VikStatusbar *vs = VIK_STATUSBAR (user_data);
  92     // Right Click: so copy the text in the INFO buffer only ATM
  93     if ( type == VIK_STATUSBAR_INFO ) {
  94       const gchar* msg = gtk_button_get_label (GTK_BUTTON(vs->status[VIK_STATUSBAR_INFO]));
  95       if ( msg ) {
  96         GtkClipboard *clipboard = gtk_clipboard_get ( GDK_SELECTION_CLIPBOARD );
  97         gtk_clipboard_set_text  ( clipboard, msg, -1 );
  98       }
  99     }
 100     // We've handled the event
 101     return TRUE;
 102   }
 103   // Otherwise carry on with other event handlers - i.e. ensure forward_signal() is called
 104   return FALSE;
 105 }
 106
 107 static void
 108 vik_statusbar_init (VikStatusbar *vs)
 109 {
 110   gint i;
 111
 112   for ( i = 0; i < VIK_STATUSBAR_NUM_TYPES; i++ ) {
 113     vs->empty[i] = TRUE;
 114
 115     if (i == VIK_STATUSBAR_ITEMS || i == VIK_STATUSBAR_ZOOM || i == VIK_STATUSBAR_INFO )
 116       vs->status[i] = gtk_button_new();
 117     else
 118     {
 119       vs->status[i] = gtk_statusbar_new();
 120       gtk_statusbar_set_has_resize_grip ( GTK_STATUSBAR(vs->status[i]), FALSE );
 121     }
 122     g_object_set_data (G_OBJECT (vs->status[i]), "type", GINT_TO_POINTER(i));
 123   }
 124
 125   gtk_box_pack_start ( GTK_BOX(vs), vs->status[VIK_STATUSBAR_TOOL], FALSE, FALSE, 1);
 126   gtk_widget_set_size_request ( vs->status[VIK_STATUSBAR_TOOL], 125, -1 );
 127
 128   g_signal_connect ( G_OBJECT(vs->status[VIK_STATUSBAR_ITEMS]), "clicked", G_CALLBACK (forward_signal), vs);
 129   gtk_button_set_relief ( GTK_BUTTON(vs->status[VIK_STATUSBAR_ITEMS]), GTK_RELIEF_NONE );
 130   gtk_widget_set_tooltip_text (GTK_WIDGET (vs->status[VIK_STATUSBAR_ITEMS]), _("Current number of background tasks. Click to see the background jobs."));
 131   gtk_box_pack_start ( GTK_BOX(vs), vs->status[VIK_STATUSBAR_ITEMS], FALSE, FALSE, 1);
 132   gtk_widget_set_size_request ( vs->status[VIK_STATUSBAR_ITEMS], 100, -1 );
 133
 134   g_signal_connect ( G_OBJECT(vs->status[VIK_STATUSBAR_ZOOM]), "clicked", G_CALLBACK (forward_signal), vs);
 135   gtk_button_set_relief ( GTK_BUTTON(vs->status[VIK_STATUSBAR_ZOOM]), GTK_RELIEF_NONE );
 136   gtk_widget_set_tooltip_text (GTK_WIDGET (vs->status[VIK_STATUSBAR_ZOOM]), _("Current zoom level. Click to select a new one."));
 137   gtk_box_pack_start ( GTK_BOX(vs), vs->status[VIK_STATUSBAR_ZOOM], FALSE, FALSE, 1);
 138   gtk_widget_set_size_request ( vs->status[VIK_STATUSBAR_ZOOM], 100, -1 );
 139
 140   gtk_box_pack_start ( GTK_BOX(vs), vs->status[VIK_STATUSBAR_POSITION], FALSE, FALSE, 1);
 141   gtk_widget_set_size_request ( vs->status[VIK_STATUSBAR_POSITION], 275, -1 );
 142
 143   g_signal_connect ( G_OBJECT(vs->status[VIK_STATUSBAR_INFO]), "button-release-event", G_CALLBACK (button_release_event), vs);
 144   g_signal_connect ( G_OBJECT(vs->status[VIK_STATUSBAR_INFO]), "clicked", G_CALLBACK (forward_signal), vs);
 145   gtk_widget_set_tooltip_text (GTK_WIDGET (vs->status[VIK_STATUSBAR_INFO]), _("Left click to clear the message. Right click to copy the message."));
 146   gtk_button_set_alignment ( GTK_BUTTON(vs->status[VIK_STATUSBAR_INFO]), 0.0, 0.5 ); // Left align the text
 147   gtk_box_pack_end ( GTK_BOX(vs), vs->status[VIK_STATUSBAR_INFO], TRUE, TRUE, 1);
 148
 149   // Set minimum overall size
 150   //  otherwise the individual size_requests above create an implicit overall size,
 151   //  and so one can't downsize horizontally as much as may be desired when the statusbar is on
 152   gtk_widget_set_size_request ( GTK_WIDGET(vs), 50, -1 );
 153 }
 154
 155 /**
 156  * vik_statusbar_new:
 157  *
 158  * Creates a new #VikStatusbar widget.
 159  *
 160  * Return value: the new #VikStatusbar widget.
 161  **/
 162 VikStatusbar *
 163 vik_statusbar_new ()
 164 {
 165   VikStatusbar *vs = VIK_STATUSBAR ( g_object_new ( VIK_STATUSBAR_TYPE, NULL ) );
 166
 167   return vs;
 168 }
 169
 170 /**
 171  * vik_statusbar_set_message:
 172  * @vs: the #VikStatusbar itself
 173  * @field: the field to update
 174  * @message: the message to use
 175  *
 176  * Update the message of the given field.
 177  **/
 178 void
 179 vik_statusbar_set_message ( VikStatusbar *vs, vik_statusbar_type_t field, const gchar *message )
 180 {
 181   if ( field >= 0 && field < VIK_STATUSBAR_NUM_TYPES )
 182   {
 183     if ( field == VIK_STATUSBAR_ITEMS || field == VIK_STATUSBAR_ZOOM || field == VIK_STATUSBAR_INFO )
 184     {
 185       gtk_button_set_label ( GTK_BUTTON(vs->status[field]), message);
 186     }
 187     else
 188     {
 189     GtkStatusbar *gsb = GTK_STATUSBAR(vs->status[field]);
 190
 191     if ( !vs->empty[field] )
 192       gtk_statusbar_pop ( gsb, 0 );
 193     else
 194       vs->empty[field] = FALSE;
 195
 196     gtk_statusbar_push ( gsb, 0, message );
 197     }
 198   }
 199 }