Pileus Git - ~andy/gtk/blob - gtk/gtkfilechooserembed.c

   1 #include <config.h>
   2 #include "gtkfilechooserembed.h"
   3 #include "gtkmarshalers.h"
   4 #include "gtkalias.h"
   5
   6 static void gtk_file_chooser_embed_class_init (gpointer g_iface);
   7 static void delegate_get_default_size         (GtkFileChooserEmbed *chooser_embed,
   8                                                gint                *default_width,
   9                                                gint                *default_height);
  10 static void delegate_get_resizable_hints      (GtkFileChooserEmbed *chooser_embed,
  11                                                gboolean            *resize_horizontally,
  12                                                gboolean            *resize_vertically);
  13 static gboolean delegate_should_respond       (GtkFileChooserEmbed *chooser_embed);
  14 static void delegate_initial_focus            (GtkFileChooserEmbed *chooser_embed);
  15 static void delegate_default_size_changed     (GtkFileChooserEmbed *chooser_embed,
  16                                                gpointer             data);
  17
  18 static GtkFileChooserEmbed *
  19 get_delegate (GtkFileChooserEmbed *receiver)
  20 {
  21   return g_object_get_data (G_OBJECT (receiver), "gtk-file-chooser-embed-delegate");
  22 }
  23
  24 /**
  25  * _gtk_file_chooser_embed_delegate_iface_init:
  26  * @iface: a #GtkFileChoserEmbedIface structure
  27  *
  28  * An interface-initialization function for use in cases where an object is
  29  * simply delegating the methods, signals of the #GtkFileChooserEmbed interface
  30  * to another object.  _gtk_file_chooser_embed_set_delegate() must be called on
  31  * each instance of the object so that the delegate object can be found.
  32  **/
  33 void
  34 _gtk_file_chooser_embed_delegate_iface_init (GtkFileChooserEmbedIface *iface)
  35 {
  36   iface->get_default_size = delegate_get_default_size;
  37   iface->get_resizable_hints = delegate_get_resizable_hints;
  38   iface->should_respond = delegate_should_respond;
  39   iface->initial_focus = delegate_initial_focus;
  40 }
  41
  42 /**
  43  * _gtk_file_chooser_embed_set_delegate:
  44  * @receiver: a GOobject implementing #GtkFileChooserEmbed
  45  * @delegate: another GObject implementing #GtkFileChooserEmbed
  46  *
  47  * Establishes that calls on @receiver for #GtkFileChooser methods should be
  48  * delegated to @delegate, and that #GtkFileChooser signals emitted on @delegate
  49  * should be forwarded to @receiver. Must be used in confunction with
  50  * _gtk_file_chooser_delegate_iface_init().
  51  **/
  52 void
  53 _gtk_file_chooser_embed_set_delegate (GtkFileChooserEmbed *receiver,
  54                                       GtkFileChooserEmbed *delegate)
  55 {
  56   g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (receiver));
  57   g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (delegate));
  58
  59   g_object_set_data (G_OBJECT (receiver), "gtk-file-chooser-embed-delegate", delegate);
  60
  61   g_signal_connect (delegate, "default_size_changed",
  62                     G_CALLBACK (delegate_default_size_changed), receiver);
  63 }
  64
  65
  66
  67 static void
  68 delegate_get_default_size (GtkFileChooserEmbed *chooser_embed,
  69                            gint                *default_width,
  70                            gint                *default_height)
  71 {
  72   _gtk_file_chooser_embed_get_default_size (get_delegate (chooser_embed), default_width, default_height);
  73 }
  74
  75 static void
  76 delegate_get_resizable_hints (GtkFileChooserEmbed *chooser_embed,
  77                               gboolean            *resize_horizontally,
  78                               gboolean            *resize_vertically)
  79 {
  80   _gtk_file_chooser_embed_get_resizable_hints (get_delegate (chooser_embed), resize_horizontally, resize_vertically);
  81 }
  82
  83 static gboolean
  84 delegate_should_respond (GtkFileChooserEmbed *chooser_embed)
  85 {
  86   return _gtk_file_chooser_embed_should_respond (get_delegate (chooser_embed));
  87 }
  88
  89 static void
  90 delegate_initial_focus (GtkFileChooserEmbed *chooser_embed)
  91 {
  92   _gtk_file_chooser_embed_initial_focus (get_delegate (chooser_embed));
  93 }
  94
  95 static void
  96 delegate_default_size_changed (GtkFileChooserEmbed *chooser_embed,
  97                                gpointer             data)
  98 {
  99   g_signal_emit_by_name (data, "default-size-changed");
 100 }
 101
 102
 103 /* publicly callable functions */
 104
 105 GType
 106 _gtk_file_chooser_embed_get_type (void)
 107 {
 108   static GType file_chooser_embed_type = 0;
 109
 110   if (!file_chooser_embed_type)
 111     {
 112       static const GTypeInfo file_chooser_embed_info =
 113       {
 114         sizeof (GtkFileChooserEmbedIface),  /* class_size */
 115         NULL,                          /* base_init */
 116         NULL,                          /* base_finalize */
 117         (GClassInitFunc)gtk_file_chooser_embed_class_init, /* class_init */
 118       };
 119
 120       file_chooser_embed_type = g_type_register_static (G_TYPE_INTERFACE,
 121                                                         "GtkFileChooserEmbed",
 122                                                         &file_chooser_embed_info, 0);
 123
 124       g_type_interface_add_prerequisite (file_chooser_embed_type, GTK_TYPE_WIDGET);
 125     }
 126
 127   return file_chooser_embed_type;
 128 }
 129
 130 static void
 131 gtk_file_chooser_embed_class_init (gpointer g_iface)
 132 {
 133   GType iface_type = G_TYPE_FROM_INTERFACE (g_iface);
 134
 135   g_signal_new ("default-size-changed",
 136                 iface_type,
 137                 G_SIGNAL_RUN_LAST,
 138                 G_STRUCT_OFFSET (GtkFileChooserEmbedIface, default_size_changed),
 139                 NULL, NULL,
 140                 _gtk_marshal_VOID__VOID,
 141                 G_TYPE_NONE, 0);
 142 }
 143
 144 void
 145 _gtk_file_chooser_embed_get_default_size (GtkFileChooserEmbed *chooser_embed,
 146                                          gint                *default_width,
 147                                          gint                *default_height)
 148 {
 149   g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
 150   g_return_if_fail (default_width != NULL);
 151   g_return_if_fail (default_height != NULL);
 152
 153   GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->get_default_size (chooser_embed, default_width, default_height);
 154 }
 155
 156 gboolean
 157 _gtk_file_chooser_embed_should_respond (GtkFileChooserEmbed *chooser_embed)
 158 {
 159   g_return_val_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed), FALSE);
 160
 161   return GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->should_respond (chooser_embed);
 162 }
 163
 164 void
 165 _gtk_file_chooser_embed_initial_focus (GtkFileChooserEmbed *chooser_embed)
 166 {
 167   g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
 168
 169   GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->initial_focus (chooser_embed);
 170 }
 171
 172 void
 173 _gtk_file_chooser_embed_get_resizable_hints (GtkFileChooserEmbed *chooser_embed,
 174                                              gboolean            *resize_horizontally,
 175                                              gboolean            *resize_vertically)
 176 {
 177   g_return_if_fail (GTK_IS_FILE_CHOOSER_EMBED (chooser_embed));
 178   g_return_if_fail (resize_horizontally != NULL);
 179   g_return_if_fail (resize_vertically != NULL);
 180
 181   GTK_FILE_CHOOSER_EMBED_GET_IFACE (chooser_embed)->get_resizable_hints (chooser_embed, resize_horizontally, resize_vertically);
 182 }
 183
 184 #define __GTK_FILE_CHOOSER_EMBED_C__
 185 #include "gtkaliasdef.c"