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 module gstreamer.PresetT; 26 27 public import glib.Str; 28 public import gstreamer.c.functions; 29 public import gstreamer.c.types; 30 public import gstreamerc.gstreamertypes; 31 32 33 /** 34 * This interface offers methods to query and manipulate parameter preset sets. 35 * A preset is a bunch of property settings, together with meta data and a name. 36 * The name of a preset serves as key for subsequent method calls to manipulate 37 * single presets. 38 * All instances of one type will share the list of presets. The list is created 39 * on demand, if presets are not used, the list is not created. 40 * 41 * The interface comes with a default implementation that serves most plugins. 42 * Wrapper plugins will override most methods to implement support for the 43 * native preset format of those wrapped plugins. 44 * One method that is useful to be overridden is gst_preset_get_property_names(). 45 * With that one can control which properties are saved and in which order. 46 * When implementing support for read-only presets, one should set the vmethods 47 * for gst_preset_save_preset() and gst_preset_delete_preset() to %NULL. 48 * Applications can use gst_preset_is_editable() to check for that. 49 * 50 * The default implementation supports presets located in a system directory, 51 * application specific directory and in the users home directory. When getting 52 * a list of presets individual presets are read and overlaid in 1) system, 53 * 2) application and 3) user order. Whenever an earlier entry is newer, the 54 * later entries will be updated. Since 1.8 you can also provide extra paths 55 * where to find presets through the GST_PRESET_PATH environment variable. 56 * Presets found in those paths will be considered as "app presets". 57 */ 58 public template PresetT(TStruct) 59 { 60 /** Get the main Gtk struct */ 61 public GstPreset* getPresetStruct(bool transferOwnership = false) 62 { 63 if (transferOwnership) 64 ownedRef = false; 65 return cast(GstPreset*)getStruct(); 66 } 67 68 69 /** 70 * Delete the given preset. 71 * 72 * Params: 73 * name = preset name to remove 74 * 75 * Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name 76 */ 77 public bool deletePreset(string name) 78 { 79 return gst_preset_delete_preset(getPresetStruct(), Str.toStringz(name)) != 0; 80 } 81 82 /** 83 * Gets the @value for an existing meta data @tag. Meta data @tag names can be 84 * something like e.g. "comment". Returned values need to be released when done. 85 * 86 * Params: 87 * name = preset name 88 * tag = meta data item name 89 * value = value 90 * 91 * Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name 92 * or no value for the given @tag 93 */ 94 public bool getMeta(string name, string tag, out string value) 95 { 96 char* outvalue = null; 97 98 auto p = gst_preset_get_meta(getPresetStruct(), Str.toStringz(name), Str.toStringz(tag), &outvalue) != 0; 99 100 value = Str.toString(outvalue); 101 102 return p; 103 } 104 105 /** 106 * Get a copy of preset names as a %NULL terminated string array. 107 * 108 * Returns: list with names, use g_strfreev() after usage. 109 */ 110 public string[] getPresetNames() 111 { 112 auto retStr = gst_preset_get_preset_names(getPresetStruct()); 113 114 scope(exit) Str.freeStringArray(retStr); 115 return Str.toStringArray(retStr); 116 } 117 118 /** 119 * Get a the names of the GObject properties that can be used for presets. 120 * 121 * Returns: an 122 * array of property names which should be freed with g_strfreev() after use. 123 */ 124 public string[] getPropertyNames() 125 { 126 auto retStr = gst_preset_get_property_names(getPresetStruct()); 127 128 scope(exit) Str.freeStringArray(retStr); 129 return Str.toStringArray(retStr); 130 } 131 132 /** 133 * Check if one can add new presets, change existing ones and remove presets. 134 * 135 * Returns: %TRUE if presets are editable or %FALSE if they are static 136 * 137 * Since: 1.6 138 */ 139 public bool isEditable() 140 { 141 return gst_preset_is_editable(getPresetStruct()) != 0; 142 } 143 144 /** 145 * Load the given preset. 146 * 147 * Params: 148 * name = preset name to load 149 * 150 * Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name 151 */ 152 public bool loadPreset(string name) 153 { 154 return gst_preset_load_preset(getPresetStruct(), Str.toStringz(name)) != 0; 155 } 156 157 /** 158 * Renames a preset. If there is already a preset by the @new_name it will be 159 * overwritten. 160 * 161 * Params: 162 * oldName = current preset name 163 * newName = new preset name 164 * 165 * Returns: %TRUE for success, %FALSE if e.g. there is no preset with @old_name 166 */ 167 public bool renamePreset(string oldName, string newName) 168 { 169 return gst_preset_rename_preset(getPresetStruct(), Str.toStringz(oldName), Str.toStringz(newName)) != 0; 170 } 171 172 /** 173 * Save the current object settings as a preset under the given name. If there 174 * is already a preset by this @name it will be overwritten. 175 * 176 * Params: 177 * name = preset name to save 178 * 179 * Returns: %TRUE for success, %FALSE 180 */ 181 public bool savePreset(string name) 182 { 183 return gst_preset_save_preset(getPresetStruct(), Str.toStringz(name)) != 0; 184 } 185 186 /** 187 * Sets a new @value for an existing meta data item or adds a new item. Meta 188 * data @tag names can be something like e.g. "comment". Supplying %NULL for the 189 * @value will unset an existing value. 190 * 191 * Params: 192 * name = preset name 193 * tag = meta data item name 194 * value = new value 195 * 196 * Returns: %TRUE for success, %FALSE if e.g. there is no preset with that @name 197 */ 198 public bool setMeta(string name, string tag, string value) 199 { 200 return gst_preset_set_meta(getPresetStruct(), Str.toStringz(name), Str.toStringz(tag), Str.toStringz(value)) != 0; 201 } 202 }