gtk.GestureRotate source code

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.GestureRotate;
26 
27 private import glib.ConstructionException;
28 private import gobject.ObjectG;
29 private import gobject.Signals;
30 private import gtk.Gesture;
31 private import gtk.Widget;
32 public  import gtkc.gdktypes;
33 private import gtkc.gtk;
34 public  import gtkc.gtktypes;
35 
36 
37 /**
38  * #GtkGestureRotate is a #GtkGesture implementation able to recognize
39  * 2-finger rotations, whenever the angle between both handled sequences
40  * changes, the #GtkGestureRotate::angle-changed signal is emitted.
41  */
42 public class GestureRotate : Gesture
43 {
44 	/** the main Gtk struct */
45 	protected GtkGestureRotate* gtkGestureRotate;
46 
47 	/** Get the main Gtk struct */
48 	public GtkGestureRotate* getGestureRotateStruct()
49 	{
50 		return gtkGestureRotate;
51 	}
52 
53 	/** the main Gtk struct as a void* */
54 	protected override void* getStruct()
55 	{
56 		return cast(void*)gtkGestureRotate;
57 	}
58 
59 	protected override void setStruct(GObject* obj)
60 	{
61 		gtkGestureRotate = cast(GtkGestureRotate*)obj;
62 		super.setStruct(obj);
63 	}
64 
65 	/**
66 	 * Sets our main struct and passes it to the parent class.
67 	 */
68 	public this (GtkGestureRotate* gtkGestureRotate, bool ownedRef = false)
69 	{
70 		this.gtkGestureRotate = gtkGestureRotate;
71 		super(cast(GtkGesture*)gtkGestureRotate, ownedRef);
72 	}
73 
74 	/**
75 	 */
76 
77 	public static GType getType()
78 	{
79 		return gtk_gesture_rotate_get_type();
80 	}
81 
82 	/**
83 	 * Returns a newly created #GtkGesture that recognizes 2-touch
84 	 * rotation gestures.
85 	 *
86 	 * Params:
87 	 *     widget = a #GtkWidget
88 	 *
89 	 * Return: a newly created #GtkGestureRotate
90 	 *
91 	 * Since: 3.14
92 	 *
93 	 * Throws: ConstructionException GTK+ fails to create the object.
94 	 */
95 	public this(Widget widget)
96 	{
97 		auto p = gtk_gesture_rotate_new((widget is null) ? null : widget.getWidgetStruct());
98 		
99 		if(p is null)
100 		{
101 			throw new ConstructionException("null returned by new");
102 		}
103 		
104 		this(cast(GtkGestureRotate*) p, true);
105 	}
106 
107 	/**
108 	 * If @gesture is active, this function returns the angle difference
109 	 * in radians since the gesture was first recognized. If @gesture is
110 	 * not active, 0 is returned.
111 	 *
112 	 * Return: the angle delta in radians
113 	 *
114 	 * Since: 3.14
115 	 */
116 	public double getAngleDelta()
117 	{
118 		return gtk_gesture_rotate_get_angle_delta(gtkGestureRotate);
119 	}
120 
121 	int[string] connectedSignals;
122 
123 	void delegate(double, double, GestureRotate)[] onAngleChangedListeners;
124 	/**
125 	 * This signal is emitted when the angle between both tracked points
126 	 * changes.
127 	 *
128 	 * Params:
129 	 *     angle = Current angle in radians
130 	 *     angleDelta = Difference with the starting angle, in radians
131 	 *
132 	 * Since: 3.14
133 	 */
134 	void addOnAngleChanged(void delegate(double, double, GestureRotate) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
135 	{
136 		if ( "angle-changed" !in connectedSignals )
137 		{
138 			Signals.connectData(
139 				this,
140 				"angle-changed",
141 				cast(GCallback)&callBackAngleChanged,
142 				cast(void*)this,
143 				null,
144 				connectFlags);
145 			connectedSignals["angle-changed"] = 1;
146 		}
147 		onAngleChangedListeners ~= dlg;
148 	}
149 	extern(C) static void callBackAngleChanged(GtkGestureRotate* gesturerotateStruct, double angle, double angleDelta, GestureRotate _gesturerotate)
150 	{
151 		foreach ( void delegate(double, double, GestureRotate) dlg; _gesturerotate.onAngleChangedListeners )
152 		{
153 			dlg(angle, angleDelta, _gesturerotate);
154 		}
155 	}
156 }