33176ae84565316464af1292e75803e24375acca
1 #ifndef __SP_3DBOX_CONTEXT_H__
2 #define __SP_3DBOX_CONTEXT_H__
4 /*
5 * 3D box drawing context
6 *
7 * Author:
8 * Lauris Kaplinski <lauris@kaplinski.com>
9 *
10 * Copyright (C) 2000 Lauris Kaplinski
11 * Copyright (C) 2000-2001 Ximian, Inc.
12 * Copyright (C) 2002 Lauris Kaplinski
13 * Copyright (C) 2007 Maximilian Albert <Anhalter42@gmx.de>
14 *
15 * Released under GNU GPL
16 */
18 #include <sigc++/sigc++.h>
19 #include "event-context.h"
20 #include "perspective3d.h"
22 struct SPKnotHolder;
24 #define SP_TYPE_3DBOX_CONTEXT (sp_3dbox_context_get_type ())
25 #define SP_3DBOX_CONTEXT(obj) (GTK_CHECK_CAST ((obj), SP_TYPE_3DBOX_CONTEXT, SP3DBoxContext))
26 #define SP_3DBOX_CONTEXT_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), SP_TYPE_3DBOX_CONTEXT, SP3DBoxContextClass))
27 #define SP_IS_3DBOX_CONTEXT(obj) (GTK_CHECK_TYPE ((obj), SP_TYPE_3DBOX_CONTEXT))
28 #define SP_IS_3DBOX_CONTEXT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), SP_TYPE_3DBOX_CONTEXT))
30 class SP3DBoxContext;
31 class SP3DBoxContextClass;
33 struct SP3DBoxContext : public SPEventContext {
34 SPItem *item;
35 NR::Point center;
37 /**
38 * save three corners while dragging:
39 * 1) the starting point (already done by the event_context)
40 * 2) drag_ptB --> the opposite corner of the front face (before pressing shift)
41 * 3) drag_ptC --> the "extruded corner" (which coincides with the mouse pointer location
42 * if we are ctrl-dragging but is constrained to the perspective line from drag_ptC
43 * to the vanishing point Y otherwise)
44 */
45 NR::Point drag_origin;
46 NR::Point drag_ptB;
47 NR::Point drag_ptC;
48 bool ctrl_dragged; /* whether we are ctrl-dragging */
49 bool extruded; /* whether shift-dragging already occured (i.e. the box is already extruded) */
51 Box3D::VPDrag * _vpdrag;
53 sigc::connection sel_changed_connection;
55 Inkscape::MessageContext *_message_context;
56 };
58 struct SP3DBoxContextClass {
59 SPEventContextClass parent_class;
60 };
62 /* Standard Gtk function */
64 GtkType sp_3dbox_context_get_type (void);
66 #endif