1 | /* GTK - The GIMP Toolkit |
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2 | * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
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3 | * |
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4 | * This library is free software; you can redistribute it and/or |
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5 | * modify it under the terms of the GNU Library General Public |
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6 | * License as published by the Free Software Foundation; either |
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7 | * version 2 of the License, or (at your option) any later version. |
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8 | * |
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9 | * This library is distributed in the hope that it will be useful, |
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10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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12 | * Library General Public License for more details. |
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13 | * |
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14 | * You should have received a copy of the GNU Library General Public |
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15 | * License along with this library; if not, write to the |
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16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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17 | * Boston, MA 02111-1307, USA. |
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18 | */ |
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19 | |
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20 | /* |
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21 | * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS |
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22 | * file for a list of people on the GTK+ Team. See the ChangeLog |
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23 | * files for a list of changes. These files are distributed with |
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24 | * GTK+ at ftp://ftp.gtk.org/pub/gtk/. |
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25 | */ |
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26 | |
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27 | #ifndef __GTK_SIGNAL_H__ |
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28 | #define __GTK_SIGNAL_H__ |
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29 | |
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30 | |
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31 | #include <gdk/gdk.h> |
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32 | #include <gtk/gtkenums.h> |
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33 | #include <gtk/gtkobject.h> |
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34 | #include <gtk/gtkmarshal.h> |
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35 | |
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36 | #ifdef __cplusplus |
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37 | extern "C" { |
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38 | #endif /* __cplusplus */ |
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39 | |
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40 | |
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41 | #define GTK_SIGNAL_OFFSET(struct, field) (GTK_STRUCT_OFFSET (struct, field)) |
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42 | |
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43 | |
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44 | typedef void (*GtkSignalMarshal) (GtkObject *object, |
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45 | gpointer data, |
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46 | guint nparams, |
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47 | GtkArg *args, |
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48 | GtkType *arg_types, |
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49 | GtkType return_type); |
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50 | typedef void (*GtkSignalDestroy) (gpointer data); |
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51 | typedef gboolean (*GtkEmissionHook) (GtkObject *object, |
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52 | guint signal_id, |
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53 | guint n_params, |
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54 | GtkArg *params, |
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55 | gpointer data); |
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56 | |
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57 | typedef struct _GtkSignalQuery GtkSignalQuery; |
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58 | |
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59 | struct _GtkSignalQuery |
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60 | { |
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61 | GtkType object_type; |
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62 | guint signal_id; |
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63 | const gchar *signal_name; |
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64 | guint is_user_signal : 1; |
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65 | GtkSignalRunType signal_flags; |
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66 | GtkType return_val; |
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67 | guint nparams; |
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68 | const GtkType *params; |
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69 | }; |
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70 | |
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71 | |
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72 | /* Application-level methods */ |
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73 | guint gtk_signal_lookup (const gchar *name, |
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74 | GtkType object_type); |
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75 | gchar* gtk_signal_name (guint signal_id); |
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76 | guint gtk_signal_n_emissions (GtkObject *object, |
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77 | guint signal_id); |
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78 | guint gtk_signal_n_emissions_by_name (GtkObject *object, |
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79 | const gchar *name); |
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80 | void gtk_signal_emit_stop (GtkObject *object, |
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81 | guint signal_id); |
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82 | void gtk_signal_emit_stop_by_name (GtkObject *object, |
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83 | const gchar *name); |
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84 | guint gtk_signal_connect (GtkObject *object, |
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85 | const gchar *name, |
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86 | GtkSignalFunc func, |
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87 | gpointer func_data); |
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88 | guint gtk_signal_connect_after (GtkObject *object, |
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89 | const gchar *name, |
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90 | GtkSignalFunc func, |
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91 | gpointer func_data); |
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92 | guint gtk_signal_connect_object (GtkObject *object, |
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93 | const gchar *name, |
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94 | GtkSignalFunc func, |
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95 | GtkObject *slot_object); |
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96 | guint gtk_signal_connect_object_after (GtkObject *object, |
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97 | const gchar *name, |
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98 | GtkSignalFunc func, |
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99 | GtkObject *slot_object); |
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100 | guint gtk_signal_connect_full (GtkObject *object, |
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101 | const gchar *name, |
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102 | GtkSignalFunc func, |
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103 | GtkCallbackMarshal marshal, |
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104 | gpointer data, |
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105 | GtkDestroyNotify destroy_func, |
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106 | gint object_signal, |
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107 | gint after); |
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108 | |
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109 | void gtk_signal_connect_object_while_alive (GtkObject *object, |
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110 | const gchar *signal, |
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111 | GtkSignalFunc func, |
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112 | GtkObject *alive_object); |
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113 | void gtk_signal_connect_while_alive (GtkObject *object, |
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114 | const gchar *signal, |
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115 | GtkSignalFunc func, |
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116 | gpointer func_data, |
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117 | GtkObject *alive_object); |
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118 | |
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119 | void gtk_signal_disconnect (GtkObject *object, |
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120 | guint handler_id); |
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121 | void gtk_signal_disconnect_by_func (GtkObject *object, |
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122 | GtkSignalFunc func, |
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123 | gpointer data); |
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124 | void gtk_signal_disconnect_by_data (GtkObject *object, |
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125 | gpointer data); |
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126 | void gtk_signal_handler_block (GtkObject *object, |
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127 | guint handler_id); |
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128 | void gtk_signal_handler_block_by_func (GtkObject *object, |
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129 | GtkSignalFunc func, |
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130 | gpointer data); |
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131 | void gtk_signal_handler_block_by_data (GtkObject *object, |
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132 | gpointer data); |
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133 | void gtk_signal_handler_unblock (GtkObject *object, |
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134 | guint handler_id); |
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135 | void gtk_signal_handler_unblock_by_func (GtkObject *object, |
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136 | GtkSignalFunc func, |
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137 | gpointer data); |
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138 | void gtk_signal_handler_unblock_by_data (GtkObject *object, |
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139 | gpointer data); |
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140 | guint gtk_signal_handler_pending (GtkObject *object, |
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141 | guint signal_id, |
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142 | gboolean may_be_blocked); |
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143 | guint gtk_signal_handler_pending_by_func (GtkObject *object, |
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144 | guint signal_id, |
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145 | gboolean may_be_blocked, |
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146 | GtkSignalFunc func, |
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147 | gpointer data); |
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148 | gint gtk_signal_handler_pending_by_id (GtkObject *object, |
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149 | guint handler_id, |
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150 | gboolean may_be_blocked); |
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151 | guint gtk_signal_add_emission_hook (guint signal_id, |
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152 | GtkEmissionHook hook_func, |
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153 | gpointer data); |
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154 | guint gtk_signal_add_emission_hook_full (guint signal_id, |
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155 | GtkEmissionHook hook_func, |
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156 | gpointer data, |
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157 | GDestroyNotify destroy); |
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158 | void gtk_signal_remove_emission_hook (guint signal_id, |
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159 | guint hook_id); |
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160 | |
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161 | /* Report internal information about a signal. The caller has the |
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162 | * responsibility to invoke a subsequent g_free (returned_data); but |
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163 | * must not modify data pointed to by the members of GtkSignalQuery |
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164 | */ |
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165 | GtkSignalQuery* gtk_signal_query (guint signal_id); |
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166 | |
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167 | |
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168 | /* Widget-level methods */ |
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169 | void gtk_signal_init (void); |
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170 | guint gtk_signal_new (const gchar *name, |
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171 | GtkSignalRunType signal_flags, |
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172 | GtkType object_type, |
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173 | guint function_offset, |
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174 | GtkSignalMarshaller marshaller, |
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175 | GtkType return_val, |
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176 | guint nparams, |
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177 | ...); |
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178 | guint gtk_signal_newv (const gchar *name, |
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179 | GtkSignalRunType signal_flags, |
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180 | GtkType object_type, |
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181 | guint function_offset, |
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182 | GtkSignalMarshaller marshaller, |
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183 | GtkType return_val, |
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184 | guint nparams, |
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185 | GtkType *params); |
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186 | void gtk_signal_emit (GtkObject *object, |
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187 | guint signal_id, |
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188 | ...); |
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189 | void gtk_signal_emit_by_name (GtkObject *object, |
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190 | const gchar *name, |
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191 | ...); |
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192 | void gtk_signal_emitv (GtkObject *object, |
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193 | guint signal_id, |
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194 | GtkArg *params); |
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195 | void gtk_signal_emitv_by_name (GtkObject *object, |
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196 | const gchar *name, |
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197 | GtkArg *params); |
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198 | /* Non-public methods */ |
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199 | void gtk_signal_handlers_destroy (GtkObject *object); |
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200 | void gtk_signal_set_funcs (GtkSignalMarshal marshal_func, |
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201 | GtkSignalDestroy destroy_func); |
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202 | |
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203 | |
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204 | |
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205 | #ifdef __cplusplus |
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206 | } |
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207 | #endif /* __cplusplus */ |
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208 | |
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209 | |
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210 | #endif /* __GTK_SIGNAL_H__ */ |
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