1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
#ifndef SEEN_KNOT_HOLDER_ENTITY_H
#define SEEN_KNOT_HOLDER_ENTITY_H
/** \file
* KnotHolderEntity definition.
*
* Authors:
* Mitsuru Oka <oka326@parkcity.ne.jp>
* Maximilian Albert <maximilian.albert@gmail.com>
*
* Copyright (C) 1999-2001 Lauris Kaplinski
* Copyright (C) 2000-2001 Ximian, Inc.
* Copyright (C) 2001 Mitsuru Oka
* Copyright (C) 2004 Monash University
* Copyright (C) 2008 Maximilian Albert
*
* Released under GNU GPL
*/
#include <glib/gtypes.h>
#include "knot.h"
struct SPItem;
struct SPKnot;
namespace NR {
class Point;
}
class SPDesktop;
class KnotHolder;
typedef void (* SPKnotHolderSetFunc) (SPItem *item, NR::Point const &p, NR::Point const &origin, guint state);
typedef NR::Point (* SPKnotHolderGetFunc) (SPItem *item);
/* fixme: Think how to make callbacks most sensitive (Lauris) */
typedef void (* SPKnotHolderReleasedFunc) (SPItem *item);
class KnotHolderEntity {
public:
KnotHolderEntity() {}
virtual ~KnotHolderEntity();
virtual void create(SPDesktop *desktop, SPItem *item, KnotHolder *parent, const gchar *tip = "",
SPKnotShapeType shape = SP_KNOT_SHAPE_DIAMOND,
SPKnotModeType mode = SP_KNOT_MODE_XOR,
guint32 color = 0xffffff00);
/* derived classes like PointParam for LPEs use this, e.g., to indicate that we must not call
delete on their pointer when a knotholder is destroyed */
virtual bool isLPEParam() { return false; }
/* the get/set/click handlers are virtual functions; each handler class for a knot
should be derived from KnotHolderEntity and override these functions */
virtual void knot_set(NR::Point const &p, NR::Point const &origin, guint state) = 0;
virtual NR::Point knot_get() = 0;
virtual void knot_click(guint /*state*/) {}
virtual void onKnotUngrabbed() {}
void update_knot();
//private:
SPKnot *knot;
SPItem *item;
KnotHolder *parent_holder;
int my_counter;
static int counter;
/** Connection to \a knot's "moved" signal. */
guint handler_id;
/** Connection to \a knot's "clicked" signal. */
guint _click_handler_id;
/** Connection to \a knot's "ungrabbed" signal. */
guint _ungrab_handler_id;
sigc::connection _moved_connection;
sigc::connection _click_connection;
sigc::connection _ungrabbed_connection;
};
/* pattern manipulation */
class PatternKnotHolderEntityXY : public KnotHolderEntity {
public:
virtual NR::Point knot_get();
virtual void knot_set(NR::Point const &p, NR::Point const &origin, guint state);
};
class PatternKnotHolderEntityAngle : public KnotHolderEntity {
public:
virtual NR::Point knot_get();
virtual void knot_set(NR::Point const &p, NR::Point const &origin, guint state);
};
class PatternKnotHolderEntityScale : public KnotHolderEntity {
public:
virtual NR::Point knot_get();
virtual void knot_set(NR::Point const &p, NR::Point const &origin, guint state);
};
#endif /* !SEEN_KNOT_HOLDER_ENTITY_H */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
|
