irreco/trunk/src/core/irreco_dlg.c

   1 /*
   2  * irreco - Ir Remote Control
   3  * Copyright (C) 2007  Arto Karppinen (arto.karppinen@iki.fi)
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include "irreco_dlg.h"
  21
  22 /**
  23  * @addtogroup IrrecoDlg
  24  *
  25  * Base class for Irreco dialogs.
  26  *
  27  * @{ @file
  28  */
  29
  30
  31
  32 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  33 /* Prototypes                                                                 */
  34 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  35
  36 #define IRRECO_DLG_CHILD_DATA_KEY "IrrecoChildDialog"
  37
  38 static void irreco_dlg_data_key_cleanup(IrrecoDlg *self, GtkWindow *parent);
  39
  40
  41
  42 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  43 /* Construction & Destruction                                                 */
  44 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  45
  46 /**
  47  * @name Construction & Destruction
  48  * @{
  49  */
  50
  51 G_DEFINE_TYPE(IrrecoDlg, irreco_dlg, GTK_TYPE_DIALOG)
  52
  53 static void irreco_dlg_finalize(GObject *object)
  54 {
  55         G_OBJECT_CLASS(irreco_dlg_parent_class)->finalize(object);
  56 }
  57
  58 static void irreco_dlg_class_init(IrrecoDlgClass *klass)
  59 {
  60         GObjectClass *object_class = G_OBJECT_CLASS(klass);
  61         object_class->finalize = irreco_dlg_finalize;
  62 }
  63
  64 static void irreco_dlg_init(IrrecoDlg *self)
  65 {
  66         IRRECO_ENTER
  67         IRRECO_RETURN
  68 }
  69
  70 GtkWidget *irreco_dlg_new(void)
  71 {
  72         return g_object_new(IRRECO_TYPE_DLG, NULL);
  73 }
  74
  75 /** @} */
  76
  77
  78
  79 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  80 /* Private Functions                                                          */
  81 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  82
  83
  84
  85
  86
  87 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  88 /* Public Functions                                                           */
  89 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
  90
  91 /**
  92  * @name Public Functions
  93  * @{
  94  */
  95
  96 void irreco_dlg_set_parent(IrrecoDlg *self, GtkWindow *parent)
  97 {
  98         gint depth = 0;
  99         gpointer data;
 100         IRRECO_ENTER
 101
 102         if (gtk_window_get_transient_for(GTK_WINDOW(self))) {
 103                 IRRECO_PRINTF("Dialog is already tracient for something.\n");
 104                 IRRECO_RETURN
 105         }
 106
 107         /* Iterate trough child windows, until we find the one that is
 108            topmost on screen. */
 109         do {
 110                 data = g_object_get_data(G_OBJECT(parent),
 111                                          IRRECO_DLG_CHILD_DATA_KEY);
 112                 if (data != NULL && GTK_IS_WINDOW(data)) {
 113                         parent = GTK_WINDOW(data);
 114                 } else {
 115                         break;
 116                 }
 117                 depth++;
 118         } while (TRUE);
 119
 120         IRRECO_PRINTF("Number of parent dialogs on screen: %i\n", depth);
 121
 122         /* Set self as a child window. */
 123         gtk_window_set_transient_for(GTK_WINDOW(self), parent);
 124         g_object_set_data(G_OBJECT(parent), IRRECO_DLG_CHILD_DATA_KEY, self);
 125
 126         /* Set up cleanup event. */
 127         g_signal_connect(G_OBJECT(self), "destroy",
 128                          G_CALLBACK(irreco_dlg_data_key_cleanup), parent);
 129         IRRECO_RETURN
 130 }
 131
 132 /** @} */
 133
 134
 135
 136 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 137 /* Events and Callbacks                                                       */
 138 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-*/
 139
 140 /**
 141  * @name Events and Callbacks
 142  * @{
 143  */
 144
 145 static void irreco_dlg_data_key_cleanup(IrrecoDlg *self, GtkWindow *parent)
 146 {
 147         gpointer data;
 148         IRRECO_ENTER
 149
 150         if (G_IS_OBJECT(parent) == FALSE) IRRECO_RETURN;
 151
 152         /* Does parent have a pointer which points to this instace? */
 153         data = g_object_get_data(G_OBJECT(parent), IRRECO_DLG_CHILD_DATA_KEY);
 154         if (data == NULL || data != self) IRRECO_RETURN;
 155
 156         /* Remote the pointer. */
 157         g_object_steal_data(G_OBJECT(parent), IRRECO_DLG_CHILD_DATA_KEY);
 158         IRRECO_RETURN
 159 }
 160
 161 /** @} */
 162
 163 /** @} */
 164
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