/*
 * This file is part of gtkD.
 *
 * gtkD is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version, with
 * some exceptions, please read the COPYING file.
 *
 * gtkD is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with gtkD; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 */

// generated automatically - do not change
// find conversion definition on APILookup.txt
// implement new conversion functionalities on the wrap.utils pakage


module gtk.WidgetPath;

private import glib.ConstructionException;
private import glib.ListSG;
private import glib.Str;
private import gobject.ObjectG;
private import gtk.Widget;
private import gtk.c.functions;
public  import gtk.c.types;
public  import gtkc.gtktypes;
private import gtkd.Loader;


/**
 * GtkWidgetPath is a boxed type that represents a widget hierarchy from
 * the topmost widget, typically a toplevel, to any child. This widget
 * path abstraction is used in #GtkStyleContext on behalf of the real
 * widget in order to query style information.
 * 
 * If you are using GTK+ widgets, you probably will not need to use
 * this API directly, as there is gtk_widget_get_path(), and the style
 * context returned by gtk_widget_get_style_context() will be automatically
 * updated on widget hierarchy changes.
 * 
 * The widget path generation is generally simple:
 * 
 * ## Defining a button within a window
 * 
 * |[<!-- language="C" -->
 * {
 * GtkWidgetPath *path;
 * 
 * path = gtk_widget_path_new ();
 * gtk_widget_path_append_type (path, GTK_TYPE_WINDOW);
 * gtk_widget_path_append_type (path, GTK_TYPE_BUTTON);
 * }
 * ]|
 * 
 * Although more complex information, such as widget names, or
 * different classes (property that may be used by other widget
 * types) and intermediate regions may be included:
 * 
 * ## Defining the first tab widget in a notebook
 * 
 * |[<!-- language="C" -->
 * {
 * GtkWidgetPath *path;
 * guint pos;
 * 
 * path = gtk_widget_path_new ();
 * 
 * pos = gtk_widget_path_append_type (path, GTK_TYPE_NOTEBOOK);
 * gtk_widget_path_iter_add_region (path, pos, "tab", GTK_REGION_EVEN | GTK_REGION_FIRST);
 * 
 * pos = gtk_widget_path_append_type (path, GTK_TYPE_LABEL);
 * gtk_widget_path_iter_set_name (path, pos, "first tab label");
 * }
 * ]|
 * 
 * All this information will be used to match the style information
 * that applies to the described widget.
 */
public class WidgetPath
{
	/** the main Gtk struct */
	protected GtkWidgetPath* gtkWidgetPath;
	protected bool ownedRef;

	/** Get the main Gtk struct */
	public GtkWidgetPath* getWidgetPathStruct(bool transferOwnership = false)
	{
		if (transferOwnership)
			ownedRef = false;
		return gtkWidgetPath;
	}

	/** the main Gtk struct as a void* */
	protected void* getStruct()
	{
		return cast(void*)gtkWidgetPath;
	}

	/**
	 * Sets our main struct and passes it to the parent class.
	 */
	public this (GtkWidgetPath* gtkWidgetPath, bool ownedRef = false)
	{
		this.gtkWidgetPath = gtkWidgetPath;
		this.ownedRef = ownedRef;
	}

	~this ()
	{
		if ( Linker.isLoaded(LIBRARY_GTK) && ownedRef )
			gtk_widget_path_unref(gtkWidgetPath);
	}


	/** */
	public static GType getType()
	{
		return gtk_widget_path_get_type();
	}

	/**
	 * Returns an empty widget path.
	 *
	 * Returns: A newly created, empty, #GtkWidgetPath
	 *
	 * Since: 3.0
	 *
	 * Throws: ConstructionException GTK+ fails to create the object.
	 */
	public this()
	{
		auto p = gtk_widget_path_new();

		if(p is null)
		{
			throw new ConstructionException("null returned by new");
		}

		this(cast(GtkWidgetPath*) p);
	}

	/**
	 * Appends the data from @widget to the widget hierarchy represented
	 * by @path. This function is a shortcut for adding information from
	 * @widget to the given @path. This includes setting the name or
	 * adding the style classes from @widget.
	 *
	 * Params:
	 *     widget = the widget to append to the widget path
	 *
	 * Returns: the position where the data was inserted
	 *
	 * Since: 3.2
	 */
	public int appendForWidget(Widget widget)
	{
		return gtk_widget_path_append_for_widget(gtkWidgetPath, (widget is null) ? null : widget.getWidgetStruct());
	}

	/**
	 * Appends a widget type to the widget hierarchy represented by @path.
	 *
	 * Params:
	 *     type = widget type to append
	 *
	 * Returns: the position where the element was inserted
	 *
	 * Since: 3.0
	 */
	public int appendType(GType type)
	{
		return gtk_widget_path_append_type(gtkWidgetPath, type);
	}

	/**
	 * Appends a widget type with all its siblings to the widget hierarchy
	 * represented by @path. Using this function instead of
	 * gtk_widget_path_append_type() will allow the CSS theming to use
	 * sibling matches in selectors and apply :nth-child() pseudo classes.
	 * In turn, it requires a lot more care in widget implementations as
	 * widgets need to make sure to call gtk_widget_reset_style() on all
	 * involved widgets when the @siblings path changes.
	 *
	 * Params:
	 *     siblings = a widget path describing a list of siblings. This path
	 *         may not contain any siblings itself and it must not be modified
	 *         afterwards.
	 *     siblingIndex = index into @siblings for where the added element is
	 *         positioned.
	 *
	 * Returns: the position where the element was inserted.
	 *
	 * Since: 3.2
	 */
	public int appendWithSiblings(WidgetPath siblings, uint siblingIndex)
	{
		return gtk_widget_path_append_with_siblings(gtkWidgetPath, (siblings is null) ? null : siblings.getWidgetPathStruct(), siblingIndex);
	}

	/**
	 * Returns a copy of @path
	 *
	 * Returns: a copy of @path
	 *
	 * Since: 3.0
	 */
	public WidgetPath copy()
	{
		auto p = gtk_widget_path_copy(gtkWidgetPath);

		if(p is null)
		{
			return null;
		}

		return ObjectG.getDObject!(WidgetPath)(cast(GtkWidgetPath*) p, true);
	}

	/**
	 * Decrements the reference count on @path, freeing the structure
	 * if the reference count reaches 0.
	 *
	 * Since: 3.0
	 */
	public void free()
	{
		gtk_widget_path_free(gtkWidgetPath);
		ownedRef = false;
	}

	/**
	 * Returns the topmost object type, that is, the object type this path
	 * is representing.
	 *
	 * Returns: The object type
	 *
	 * Since: 3.0
	 */
	public GType getObjectType()
	{
		return gtk_widget_path_get_object_type(gtkWidgetPath);
	}

	/**
	 * Returns %TRUE if any of the parents of the widget represented
	 * in @path is of type @type, or any subtype of it.
	 *
	 * Params:
	 *     type = widget type to check in parents
	 *
	 * Returns: %TRUE if any parent is of type @type
	 *
	 * Since: 3.0
	 */
	public bool hasParent(GType type)
	{
		return gtk_widget_path_has_parent(gtkWidgetPath, type) != 0;
	}

	/**
	 * Returns %TRUE if the widget type represented by this path
	 * is @type, or a subtype of it.
	 *
	 * Params:
	 *     type = widget type to match
	 *
	 * Returns: %TRUE if the widget represented by @path is of type @type
	 *
	 * Since: 3.0
	 */
	public bool isType(GType type)
	{
		return gtk_widget_path_is_type(gtkWidgetPath, type) != 0;
	}

	/**
	 * Adds the class @name to the widget at position @pos in
	 * the hierarchy defined in @path. See
	 * gtk_style_context_add_class().
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     name = a class name
	 *
	 * Since: 3.0
	 */
	public void iterAddClass(int pos, string name)
	{
		gtk_widget_path_iter_add_class(gtkWidgetPath, pos, Str.toStringz(name));
	}

	/**
	 * Adds the region @name to the widget at position @pos in
	 * the hierarchy defined in @path. See
	 * gtk_style_context_add_region().
	 *
	 * Region names must only contain lowercase letters
	 * and “-”, starting always with a lowercase letter.
	 *
	 * Deprecated: The use of regions is deprecated.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     name = region name
	 *     flags = flags affecting the region
	 *
	 * Since: 3.0
	 */
	public void iterAddRegion(int pos, string name, GtkRegionFlags flags)
	{
		gtk_widget_path_iter_add_region(gtkWidgetPath, pos, Str.toStringz(name), flags);
	}

	/**
	 * Removes all classes from the widget at position @pos in the
	 * hierarchy defined in @path.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *
	 * Since: 3.0
	 */
	public void iterClearClasses(int pos)
	{
		gtk_widget_path_iter_clear_classes(gtkWidgetPath, pos);
	}

	/**
	 * Removes all regions from the widget at position @pos in the
	 * hierarchy defined in @path.
	 *
	 * Deprecated: The use of regions is deprecated.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *
	 * Since: 3.0
	 */
	public void iterClearRegions(int pos)
	{
		gtk_widget_path_iter_clear_regions(gtkWidgetPath, pos);
	}

	/**
	 * Returns the name corresponding to the widget found at
	 * the position @pos in the widget hierarchy defined by
	 * @path
	 *
	 * Params:
	 *     pos = position to get the widget name for, -1 for the path head
	 *
	 * Returns: The widget name, or %NULL if none was set.
	 */
	public string iterGetName(int pos)
	{
		return Str.toString(gtk_widget_path_iter_get_name(gtkWidgetPath, pos));
	}

	/**
	 * Returns the object name that is at position @pos in the widget
	 * hierarchy defined in @path.
	 *
	 * Params:
	 *     pos = position to get the object name for, -1 for the path head
	 *
	 * Returns: the name or %NULL
	 *
	 * Since: 3.20
	 */
	public string iterGetObjectName(int pos)
	{
		return Str.toString(gtk_widget_path_iter_get_object_name(gtkWidgetPath, pos));
	}

	/**
	 * Returns the object #GType that is at position @pos in the widget
	 * hierarchy defined in @path.
	 *
	 * Params:
	 *     pos = position to get the object type for, -1 for the path head
	 *
	 * Returns: a widget type
	 *
	 * Since: 3.0
	 */
	public GType iterGetObjectType(int pos)
	{
		return gtk_widget_path_iter_get_object_type(gtkWidgetPath, pos);
	}

	/**
	 * Returns the index into the list of siblings for the element at @pos as
	 * returned by gtk_widget_path_iter_get_siblings(). If that function would
	 * return %NULL because the element at @pos has no siblings, this function
	 * will return 0.
	 *
	 * Params:
	 *     pos = position to get the sibling index for, -1 for the path head
	 *
	 * Returns: 0 or the index into the list of siblings for the element at @pos.
	 */
	public uint iterGetSiblingIndex(int pos)
	{
		return gtk_widget_path_iter_get_sibling_index(gtkWidgetPath, pos);
	}

	/**
	 * Returns the list of siblings for the element at @pos. If the element
	 * was not added with siblings, %NULL is returned.
	 *
	 * Params:
	 *     pos = position to get the siblings for, -1 for the path head
	 *
	 * Returns: %NULL or the list of siblings for the element at @pos.
	 */
	public WidgetPath iterGetSiblings(int pos)
	{
		auto p = gtk_widget_path_iter_get_siblings(gtkWidgetPath, pos);

		if(p is null)
		{
			return null;
		}

		return ObjectG.getDObject!(WidgetPath)(cast(GtkWidgetPath*) p);
	}

	/**
	 * Returns the state flags corresponding to the widget found at
	 * the position @pos in the widget hierarchy defined by
	 * @path
	 *
	 * Params:
	 *     pos = position to get the state for, -1 for the path head
	 *
	 * Returns: The state flags
	 *
	 * Since: 3.14
	 */
	public GtkStateFlags iterGetState(int pos)
	{
		return gtk_widget_path_iter_get_state(gtkWidgetPath, pos);
	}

	/**
	 * Returns %TRUE if the widget at position @pos has the class @name
	 * defined, %FALSE otherwise.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *     name = class name
	 *
	 * Returns: %TRUE if the class @name is defined for the widget at @pos
	 *
	 * Since: 3.0
	 */
	public bool iterHasClass(int pos, string name)
	{
		return gtk_widget_path_iter_has_class(gtkWidgetPath, pos, Str.toStringz(name)) != 0;
	}

	/**
	 * Returns %TRUE if the widget at position @pos has the name @name,
	 * %FALSE otherwise.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *     name = a widget name
	 *
	 * Returns: %TRUE if the widget at @pos has this name
	 *
	 * Since: 3.0
	 */
	public bool iterHasName(int pos, string name)
	{
		return gtk_widget_path_iter_has_name(gtkWidgetPath, pos, Str.toStringz(name)) != 0;
	}

	/**
	 * See gtk_widget_path_iter_has_class(). This is a version that operates
	 * with GQuarks.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *     qname = class name as a #GQuark
	 *
	 * Returns: %TRUE if the widget at @pos has the class defined.
	 *
	 * Since: 3.0
	 */
	public bool iterHasQclass(int pos, GQuark qname)
	{
		return gtk_widget_path_iter_has_qclass(gtkWidgetPath, pos, qname) != 0;
	}

	/**
	 * See gtk_widget_path_iter_has_name(). This is a version
	 * that operates on #GQuarks.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *     qname = widget name as a #GQuark
	 *
	 * Returns: %TRUE if the widget at @pos has this name
	 *
	 * Since: 3.0
	 */
	public bool iterHasQname(int pos, GQuark qname)
	{
		return gtk_widget_path_iter_has_qname(gtkWidgetPath, pos, qname) != 0;
	}

	/**
	 * See gtk_widget_path_iter_has_region(). This is a version that operates
	 * with GQuarks.
	 *
	 * Deprecated: The use of regions is deprecated.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *     qname = region name as a #GQuark
	 *     flags = return location for the region flags
	 *
	 * Returns: %TRUE if the widget at @pos has the region defined.
	 *
	 * Since: 3.0
	 */
	public bool iterHasQregion(int pos, GQuark qname, out GtkRegionFlags flags)
	{
		return gtk_widget_path_iter_has_qregion(gtkWidgetPath, pos, qname, &flags) != 0;
	}

	/**
	 * Returns %TRUE if the widget at position @pos has the class @name
	 * defined, %FALSE otherwise.
	 *
	 * Deprecated: The use of regions is deprecated.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *     name = region name
	 *     flags = return location for the region flags
	 *
	 * Returns: %TRUE if the class @name is defined for the widget at @pos
	 *
	 * Since: 3.0
	 */
	public bool iterHasRegion(int pos, string name, out GtkRegionFlags flags)
	{
		return gtk_widget_path_iter_has_region(gtkWidgetPath, pos, Str.toStringz(name), &flags) != 0;
	}

	/**
	 * Returns a list with all the class names defined for the widget
	 * at position @pos in the hierarchy defined in @path.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *
	 * Returns: The list of
	 *     classes, This is a list of strings, the #GSList contents
	 *     are owned by GTK+, but you should use g_slist_free() to
	 *     free the list itself.
	 *
	 * Since: 3.0
	 */
	public ListSG iterListClasses(int pos)
	{
		auto p = gtk_widget_path_iter_list_classes(gtkWidgetPath, pos);

		if(p is null)
		{
			return null;
		}

		return new ListSG(cast(GSList*) p);
	}

	/**
	 * Returns a list with all the region names defined for the widget
	 * at position @pos in the hierarchy defined in @path.
	 *
	 * Deprecated: The use of regions is deprecated.
	 *
	 * Params:
	 *     pos = position to query, -1 for the path head
	 *
	 * Returns: The list of
	 *     regions, This is a list of strings, the #GSList contents
	 *     are owned by GTK+, but you should use g_slist_free() to
	 *     free the list itself.
	 *
	 * Since: 3.0
	 */
	public ListSG iterListRegions(int pos)
	{
		auto p = gtk_widget_path_iter_list_regions(gtkWidgetPath, pos);

		if(p is null)
		{
			return null;
		}

		return new ListSG(cast(GSList*) p);
	}

	/**
	 * Removes the class @name from the widget at position @pos in
	 * the hierarchy defined in @path.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     name = class name
	 *
	 * Since: 3.0
	 */
	public void iterRemoveClass(int pos, string name)
	{
		gtk_widget_path_iter_remove_class(gtkWidgetPath, pos, Str.toStringz(name));
	}

	/**
	 * Removes the region @name from the widget at position @pos in
	 * the hierarchy defined in @path.
	 *
	 * Deprecated: The use of regions is deprecated.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     name = region name
	 *
	 * Since: 3.0
	 */
	public void iterRemoveRegion(int pos, string name)
	{
		gtk_widget_path_iter_remove_region(gtkWidgetPath, pos, Str.toStringz(name));
	}

	/**
	 * Sets the widget name for the widget found at position @pos
	 * in the widget hierarchy defined by @path.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     name = widget name
	 *
	 * Since: 3.0
	 */
	public void iterSetName(int pos, string name)
	{
		gtk_widget_path_iter_set_name(gtkWidgetPath, pos, Str.toStringz(name));
	}

	/**
	 * Sets the object name for a given position in the widget hierarchy
	 * defined by @path.
	 *
	 * When set, the object name overrides the object type when matching
	 * CSS.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     name = object name to set or %NULL to unset
	 *
	 * Since: 3.20
	 */
	public void iterSetObjectName(int pos, string name)
	{
		gtk_widget_path_iter_set_object_name(gtkWidgetPath, pos, Str.toStringz(name));
	}

	/**
	 * Sets the object type for a given position in the widget hierarchy
	 * defined by @path.
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     type = object type to set
	 *
	 * Since: 3.0
	 */
	public void iterSetObjectType(int pos, GType type)
	{
		gtk_widget_path_iter_set_object_type(gtkWidgetPath, pos, type);
	}

	/**
	 * Sets the widget name for the widget found at position @pos
	 * in the widget hierarchy defined by @path.
	 *
	 * If you want to update just a single state flag, you need to do
	 * this manually, as this function updates all state flags.
	 *
	 * ## Setting a flag
	 *
	 * |[<!-- language="C" -->
	 * gtk_widget_path_iter_set_state (path, pos, gtk_widget_path_iter_get_state (path, pos) | flag);
	 * ]|
	 *
	 * ## Unsetting a flag
	 *
	 * |[<!-- language="C" -->
	 * gtk_widget_path_iter_set_state (path, pos, gtk_widget_path_iter_get_state (path, pos) & ~flag);
	 * ]|
	 *
	 * Params:
	 *     pos = position to modify, -1 for the path head
	 *     state = state flags
	 *
	 * Since: 3.14
	 */
	public void iterSetState(int pos, GtkStateFlags state)
	{
		gtk_widget_path_iter_set_state(gtkWidgetPath, pos, state);
	}

	/**
	 * Returns the number of #GtkWidget #GTypes between the represented
	 * widget and its topmost container.
	 *
	 * Returns: the number of elements in the path
	 *
	 * Since: 3.0
	 */
	public int length()
	{
		return gtk_widget_path_length(gtkWidgetPath);
	}

	/**
	 * Prepends a widget type to the widget hierachy represented by @path.
	 *
	 * Params:
	 *     type = widget type to prepend
	 *
	 * Since: 3.0
	 */
	public void prependType(GType type)
	{
		gtk_widget_path_prepend_type(gtkWidgetPath, type);
	}

	alias doref = ref_;
	/**
	 * Increments the reference count on @path.
	 *
	 * Returns: @path itself.
	 *
	 * Since: 3.2
	 */
	public WidgetPath ref_()
	{
		auto p = gtk_widget_path_ref(gtkWidgetPath);

		if(p is null)
		{
			return null;
		}

		return ObjectG.getDObject!(WidgetPath)(cast(GtkWidgetPath*) p, true);
	}

	/**
	 * Dumps the widget path into a string representation. It tries to match
	 * the CSS style as closely as possible (Note that there might be paths
	 * that cannot be represented in CSS).
	 *
	 * The main use of this code is for debugging purposes, so that you can
	 * g_print() the path or dump it in a gdb session.
	 *
	 * Returns: A new string describing @path.
	 *
	 * Since: 3.2
	 */
	public override string toString()
	{
		auto retStr = gtk_widget_path_to_string(gtkWidgetPath);

		scope(exit) Str.freeString(retStr);
		return Str.toString(retStr);
	}

	/**
	 * Decrements the reference count on @path, freeing the structure
	 * if the reference count reaches 0.
	 *
	 * Since: 3.2
	 */
	public void unref()
	{
		gtk_widget_path_unref(gtkWidgetPath);
	}
}