gui/action.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2010 Nedko Arnaudov <nedko@arnaudov.name>
   6  *
   7  **************************************************************************
   8  * This file contains GtkAction related code
   9  **************************************************************************
  10  *
  11  * LADI Session Handler is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * LADI Session Handler is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  23  * or write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #include "internal.h"
  28 #include "action.h"
  29 #include "gtk_builder.h"
  30 #include "jack.h"
  31 #include "zoom.h"
  32
  33 GtkAction * g_clear_xruns_and_max_dsp_action;
  34 GtkAction * g_zoom_100_action;
  35 GtkAction * g_zoom_fit_action;
  36 GtkAction * g_zoom_in_action;
  37 GtkAction * g_zoom_out_action;
  38
  39 void init_actions_and_accelerators(void)
  40 {
  41   static GtkActionGroup * action_group_ptr;
  42   static GtkAccelGroup * accel_group_ptr;
  43
  44   g_clear_xruns_and_max_dsp_action = GTK_ACTION(get_gtk_builder_object("clear_xruns_and_max_dsp_load_action"));
  45   g_signal_connect(G_OBJECT(g_clear_xruns_and_max_dsp_action), "activate", G_CALLBACK(clear_xruns_and_max_dsp), NULL);
  46
  47   g_zoom_100_action = GTK_ACTION(get_gtk_builder_object("zoom_100_action"));
  48   g_signal_connect(G_OBJECT(g_zoom_100_action), "activate", G_CALLBACK(zoom_100), NULL);
  49
  50   g_zoom_fit_action = GTK_ACTION(get_gtk_builder_object("zoom_fit_action"));
  51   g_signal_connect(G_OBJECT(g_zoom_fit_action), "activate", G_CALLBACK(zoom_fit), NULL);
  52
  53   g_zoom_in_action = GTK_ACTION(get_gtk_builder_object("zoom_in_action"));
  54   g_signal_connect(G_OBJECT(g_zoom_in_action), "activate", G_CALLBACK(zoom_in), NULL);
  55
  56   g_zoom_out_action = GTK_ACTION(get_gtk_builder_object("zoom_out_action"));
  57   g_signal_connect(G_OBJECT(g_zoom_out_action), "activate", G_CALLBACK(zoom_out), NULL);
  58
  59   struct
  60   {
  61     GtkAction * action_ptr;
  62     const char * shortcut;
  63   } * descriptor_ptr, descriptors [] =
  64       {
  65         {g_clear_xruns_and_max_dsp_action, "c"},
  66         {g_zoom_in_action, "<Control>plus"},
  67         {g_zoom_out_action, "<Control>minus"},
  68         {g_zoom_100_action, "<Control>0"},
  69         {g_zoom_fit_action, "<Control>equal"},
  70         {NULL, NULL}
  71       };
  72
  73   action_group_ptr = gtk_action_group_new("main");
  74   accel_group_ptr = gtk_accel_group_new();
  75
  76   for (descriptor_ptr = descriptors; descriptor_ptr->action_ptr != NULL; descriptor_ptr++)
  77   {
  78     //log_info("action '%s' -> shortcut \"%s\"", gtk_action_get_name(descriptor_ptr->action_ptr), descriptor_ptr->shortcut);
  79     gtk_action_group_add_action_with_accel(action_group_ptr, descriptor_ptr->action_ptr, descriptor_ptr->shortcut);
  80     gtk_action_set_accel_group(descriptor_ptr->action_ptr, accel_group_ptr);
  81     gtk_action_connect_accelerator(descriptor_ptr->action_ptr);
  82   }
  83
  84   gtk_window_add_accel_group(GTK_WINDOW(g_main_win), accel_group_ptr);
  85 }
  86
  87 void enable_action(GtkAction * action)
  88 {
  89   gtk_action_set_sensitive(action, TRUE);
  90 }
  91
  92 void disable_action(GtkAction * action)
  93 {
  94   gtk_action_set_sensitive(action, FALSE);
  95 }