1 /* 2 * This file is part of gtkD. 3 * 4 * gtkD is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU Lesser General Public License 6 * as published by the Free Software Foundation; either version 3 7 * of the License, or (at your option) any later version, with 8 * some exceptions, please read the COPYING file. 9 * 10 * gtkD 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 Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public License 16 * along with gtkD; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA 18 */ 19 20 // generated automatically - do not change 21 // find conversion definition on APILookup.txt 22 // implement new conversion functionalities on the wrap.utils pakage 23 24 /* 25 * Conversion parameters: 26 * inFile = GTypePlugin.html 27 * outPack = gobject 28 * outFile = TypePlugin 29 * strct = GTypePlugin 30 * realStrct= 31 * ctorStrct= 32 * clss = TypePlugin 33 * interf = 34 * class Code: No 35 * interface Code: No 36 * template for: 37 * extend = 38 * implements: 39 * prefixes: 40 * - g_type_plugin_ 41 * omit structs: 42 * omit prefixes: 43 * omit code: 44 * omit signals: 45 * imports: 46 * structWrap: 47 * module aliases: 48 * local aliases: 49 * overrides: 50 */ 51 52 module gobject.TypePlugin; 53 54 public import gtkc.gobjecttypes; 55 56 private import gtkc.gobject; 57 private import glib.ConstructionException; 58 private import gobject.ObjectG; 59 60 61 62 63 64 65 /** 66 * The GObject type system supports dynamic loading of types. The 67 * GTypePlugin interface is used to handle the lifecycle of 68 * dynamically loaded types. It goes as follows: 69 * 70 * The type is initially introduced (usually upon loading the module 71 * the first time, or by your main application that knows what modules 72 * introduces what types), like this: 73 * 74 * $(DDOC_COMMENT example) 75 * 76 * where new_type_plugin is an implementation of the 77 * GTypePlugin interface. 78 * 79 * The type's implementation is referenced, e.g. through 80 * g_type_class_ref() or through g_type_create_instance() (this is 81 * being called by g_object_new()) or through one of the above done on 82 * a type derived from new_type_id. 83 * 84 * This causes the type system to load the type's implementation by calling 85 * g_type_plugin_use() and g_type_plugin_complete_type_info() on 86 * new_type_plugin. 87 * 88 * At some point the type's implementation isn't required anymore, e.g. after 89 * g_type_class_unref() or g_type_free_instance() (called when the reference 90 * count of an instance drops to zero). 91 * 92 * This causes the type system to throw away the information retrieved from 93 * g_type_plugin_complete_type_info() and then it calls 94 * g_type_plugin_unuse() on new_type_plugin. 95 * 96 * Things may repeat from the second step. 97 * 98 * So basically, you need to implement a GTypePlugin type that 99 * carries a use_count, once use_count goes from zero to one, you need 100 * to load the implementation to successfully handle the upcoming 101 * g_type_plugin_complete_type_info() call. Later, maybe after 102 * succeeding use/unuse calls, once use_count drops to zero, you can 103 * unload the implementation again. The type system makes sure to call 104 * g_type_plugin_use() and g_type_plugin_complete_type_info() again 105 * when the type is needed again. 106 * 107 * GTypeModule is an implementation of GTypePlugin that already 108 * implements most of this except for the actual module loading and 109 * unloading. It even handles multiple registered types per module. 110 */ 111 public class TypePlugin 112 { 113 114 /** the main Gtk struct */ 115 protected GTypePlugin* gTypePlugin; 116 117 118 public GTypePlugin* getTypePluginStruct() 119 { 120 return gTypePlugin; 121 } 122 123 124 /** the main Gtk struct as a void* */ 125 protected void* getStruct() 126 { 127 return cast(void*)gTypePlugin; 128 } 129 130 /** 131 * Sets our main struct and passes it to the parent class 132 */ 133 public this (GTypePlugin* gTypePlugin) 134 { 135 this.gTypePlugin = gTypePlugin; 136 } 137 138 /** 139 */ 140 141 /** 142 * Calls the use_plugin function from the GTypePluginClass of 143 * plugin. There should be no need to use this function outside of 144 * the GObject type system itself. 145 */ 146 public void use() 147 { 148 // void g_type_plugin_use (GTypePlugin *plugin); 149 g_type_plugin_use(gTypePlugin); 150 } 151 152 /** 153 * Calls the unuse_plugin function from the GTypePluginClass of 154 * plugin. There should be no need to use this function outside of 155 * the GObject type system itself. 156 */ 157 public void unuse() 158 { 159 // void g_type_plugin_unuse (GTypePlugin *plugin); 160 g_type_plugin_unuse(gTypePlugin); 161 } 162 163 /** 164 * Calls the complete_type_info function from the GTypePluginClass of plugin. 165 * There should be no need to use this function outside of the GObject 166 * type system itself. 167 * Params: 168 * gType = the GType whose info is completed 169 * info = the GTypeInfo struct to fill in 170 * valueTable = the GTypeValueTable to fill in 171 */ 172 public void completeTypeInfo(GType gType, GTypeInfo* info, GTypeValueTable* valueTable) 173 { 174 // void g_type_plugin_complete_type_info (GTypePlugin *plugin, GType g_type, GTypeInfo *info, GTypeValueTable *value_table); 175 g_type_plugin_complete_type_info(gTypePlugin, gType, info, valueTable); 176 } 177 178 /** 179 * Calls the complete_interface_info function from the 180 * GTypePluginClass of plugin. There should be no need to use this 181 * function outside of the GObject type system itself. 182 * Params: 183 * instanceType = the GType of an instantiable type to which the interface 184 * is added 185 * interfaceType = the GType of the interface whose info is completed 186 * info = the GInterfaceInfo to fill in 187 */ 188 public void completeInterfaceInfo(GType instanceType, GType interfaceType, GInterfaceInfo* info) 189 { 190 // void g_type_plugin_complete_interface_info (GTypePlugin *plugin, GType instance_type, GType interface_type, GInterfaceInfo *info); 191 g_type_plugin_complete_interface_info(gTypePlugin, instanceType, interfaceType, info); 192 } 193 }