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 gtk.Scrollbar;
26 
27 private import glib.ConstructionException;
28 private import gobject.ObjectG;
29 private import gtk.Adjustment;
30 private import gtk.OrientableIF;
31 private import gtk.OrientableT;
32 private import gtk.Widget;
33 private import gtk.c.functions;
34 public  import gtk.c.types;
35 
36 
37 /**
38  * The `GtkScrollbar` widget is a horizontal or vertical scrollbar.
39  * 
40  * ![An example GtkScrollbar](scrollbar.png)
41  * 
42  * Its position and movement are controlled by the adjustment that is passed to
43  * or created by [ctor@Gtk.Scrollbar.new]. See [class.Gtk.Adjustment] for more
44  * details. The [property@Gtk.Adjustment:value] field sets the position of the
45  * thumb and must be between [property@Gtk.Adjustment:lower] and
46  * [property@Gtk.Adjustment:upper] - [property@Gtk.Adjustment:page-size].
47  * The [property@Gtk.Adjustment:page-size] represents the size of the visible
48  * scrollable area.
49  * 
50  * The fields [property@Gtk.Adjustment:step-increment] and
51  * [property@Gtk.Adjustment:page-increment] fields are added to or subtracted
52  * from the [property@Gtk.Adjustment:value] when the user asks to move by a step
53  * (using e.g. the cursor arrow keys) or by a page (using e.g. the Page Down/Up
54  * keys).
55  * 
56  * # CSS nodes
57  * 
58  * ```
59  * scrollbar
60  * ╰── range[.fine-tune]
61  * ╰── trough
62  * ╰── slider
63  * ```
64  * 
65  * `GtkScrollbar` has a main CSS node with name scrollbar and a subnode for its
66  * contents. The main node gets the .horizontal or .vertical style classes applied,
67  * depending on the scrollbar's orientation.
68  * 
69  * The range node gets the style class .fine-tune added when the scrollbar is
70  * in 'fine-tuning' mode.
71  * 
72  * Other style classes that may be added to scrollbars inside
73  * [class@Gtk.ScrolledWindow] include the positional classes (.left, .right,
74  * .top, .bottom) and style classes related to overlay scrolling (.overlay-indicator,
75  * .dragging, .hovering).
76  * 
77  * # Accessibility
78  * 
79  * `GtkScrollbar` uses the %GTK_ACCESSIBLE_ROLE_SCROLLBAR role.
80  */
81 public class Scrollbar : Widget, OrientableIF
82 {
83 	/** the main Gtk struct */
84 	protected GtkScrollbar* gtkScrollbar;
85 
86 	/** Get the main Gtk struct */
87 	public GtkScrollbar* getScrollbarStruct(bool transferOwnership = false)
88 	{
89 		if (transferOwnership)
90 			ownedRef = false;
91 		return gtkScrollbar;
92 	}
93 
94 	/** the main Gtk struct as a void* */
95 	protected override void* getStruct()
96 	{
97 		return cast(void*)gtkScrollbar;
98 	}
99 
100 	/**
101 	 * Sets our main struct and passes it to the parent class.
102 	 */
103 	public this (GtkScrollbar* gtkScrollbar, bool ownedRef = false)
104 	{
105 		this.gtkScrollbar = gtkScrollbar;
106 		super(cast(GtkWidget*)gtkScrollbar, ownedRef);
107 	}
108 
109 	// add the Orientable capabilities
110 	mixin OrientableT!(GtkScrollbar);
111 
112 
113 	/** */
114 	public static GType getType()
115 	{
116 		return gtk_scrollbar_get_type();
117 	}
118 
119 	/**
120 	 * Creates a new scrollbar with the given orientation.
121 	 *
122 	 * Params:
123 	 *     orientation = the scrollbar’s orientation.
124 	 *     adjustment = the [class@Gtk.Adjustment] to use, or %NULL
125 	 *         to create a new adjustment.
126 	 *
127 	 * Returns: the new `GtkScrollbar`.
128 	 *
129 	 * Throws: ConstructionException GTK+ fails to create the object.
130 	 */
131 	public this(GtkOrientation orientation, Adjustment adjustment)
132 	{
133 		auto __p = gtk_scrollbar_new(orientation, (adjustment is null) ? null : adjustment.getAdjustmentStruct());
134 
135 		if(__p is null)
136 		{
137 			throw new ConstructionException("null returned by new");
138 		}
139 
140 		this(cast(GtkScrollbar*) __p);
141 	}
142 
143 	/**
144 	 * Returns the scrollbar's adjustment.
145 	 *
146 	 * Returns: the scrollbar's adjustment
147 	 */
148 	public Adjustment getAdjustment()
149 	{
150 		auto __p = gtk_scrollbar_get_adjustment(gtkScrollbar);
151 
152 		if(__p is null)
153 		{
154 			return null;
155 		}
156 
157 		return ObjectG.getDObject!(Adjustment)(cast(GtkAdjustment*) __p);
158 	}
159 
160 	/**
161 	 * Makes the scrollbar use the given adjustment.
162 	 *
163 	 * Params:
164 	 *     adjustment = the adjustment to set
165 	 */
166 	public void setAdjustment(Adjustment adjustment)
167 	{
168 		gtk_scrollbar_set_adjustment(gtkScrollbar, (adjustment is null) ? null : adjustment.getAdjustmentStruct());
169 	}
170 }