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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
#define INKSCAPE_LPE_POINTPARAM_KNOTHOLDER_C
/*
* Container for PointParamKnotHolder visual handles
*
* Authors:
* Johan Engelen <goejendaagh@zonnet.nl>
*
* Copyright (C) 2008 authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "live_effects/parameter/pointparam-knotholder.h"
#include "live_effects/lpeobject.h"
#include "document.h"
#include "sp-shape.h"
#include "knot.h"
#include "knotholder.h"
#include <glibmm/i18n.h>
#include <2geom/point.h>
#include <2geom/matrix.h>
#include "svg/stringstream.h"
#include "xml/repr.h"
class SPDesktop;
namespace Inkscape {
static void pointparam_knot_clicked_handler (SPKnot *knot, guint state, PointParamKnotHolder *kh);
static void pointparam_knot_moved_handler(SPKnot *knot, Geom::Point const *p, guint state, PointParamKnotHolder *kh);
static void pointparam_knot_ungrabbed_handler (SPKnot *knot, unsigned int state, PointParamKnotHolder *kh);
PointParamKnotHolder::PointParamKnotHolder(SPDesktop *desktop, SPObject *lpeobject, const gchar * key, SPItem *item)
{
if (!desktop || !item || !SP_IS_ITEM(item)) {
g_print ("Error! Throw an exception, please!\n");
}
this->desktop = desktop;
this->item = item;
this->lpeobject = LIVEPATHEFFECT(lpeobject);
g_object_ref(G_OBJECT(item));
g_object_ref(G_OBJECT(lpeobject));
this->released = NULL;
this->repr = lpeobject->repr;
this->repr_key = key;
this->local_change = FALSE;
}
PointParamKnotHolder::~PointParamKnotHolder()
{
g_object_unref(G_OBJECT(this->item));
g_object_unref(G_OBJECT(this->lpeobject));
}
class KnotHolderEntityPointParam : public LPEKnotHolderEntity {
public:
virtual Geom::Point knot_get();
virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state);
};
Geom::Point
KnotHolderEntityPointParam::knot_get() {
return Geom::Point(0,0);
}
void
KnotHolderEntityPointParam::knot_set(Geom::Point const &/*p*/, Geom::Point const &/*origin*/, guint /*state*/) {
}
void
PointParamKnotHolder::add_knot (
Geom::Point & p,
// TODO: check if knot_click being ignored is bad:
PointParamKnotHolderClickedFunc /*knot_click*/,
SPKnotShapeType shape,
SPKnotModeType mode,
guint32 color,
const gchar *tip )
{
/* create new SPKnotHolderEntry */
KnotHolderEntity *e = new KnotHolderEntityPointParam();
e->create(this->desktop, this->item, this, tip, shape, mode, color);
entity.push_back(e);
// Move to current point.
Geom::Point dp = p * sp_item_i2d_affine(item);
sp_knot_set_position(e->knot, dp, SP_KNOT_STATE_NORMAL);
e->handler_id = g_signal_connect(e->knot, "moved", G_CALLBACK(pointparam_knot_moved_handler), this);
e->_click_handler_id = g_signal_connect(e->knot, "clicked", G_CALLBACK(pointparam_knot_clicked_handler), this);
e->_ungrab_handler_id = g_signal_connect(e->knot, "ungrabbed", G_CALLBACK(pointparam_knot_ungrabbed_handler), this);
sp_knot_show(e->knot);
}
static void pointparam_knot_clicked_handler(SPKnot */*knot*/, guint /*state*/, PointParamKnotHolder */*kh*/)
{
}
/**
* \param p In desktop coordinates.
* This function does not write to XML, but tries to write directly to the PointParam to quickly live update the effect
*/
static void pointparam_knot_moved_handler(SPKnot */*knot*/, Geom::Point const *p, guint /*state*/, PointParamKnotHolder *kh)
{
Geom::Matrix const i2d(sp_item_i2d_affine(kh->getItem()));
Geom::Point pos = (*p) * i2d.inverse();
Inkscape::SVGOStringStream os;
os << pos;
kh->lpeobject->lpe->setParameter(kh->repr_key, os.str().c_str());
}
static void pointparam_knot_ungrabbed_handler(SPKnot *knot, unsigned int /*state*/, PointParamKnotHolder *kh)
{
Geom::Matrix const i2d(sp_item_i2d_affine(kh->getItem()));
Geom::Point pos = sp_knot_position(knot) * i2d.inverse();
Inkscape::SVGOStringStream os;
os << pos;
kh->repr->setAttribute(kh->repr_key , os.str().c_str());
sp_document_done(SP_OBJECT_DOCUMENT (kh->lpeobject), SP_VERB_CONTEXT_LPE, _("Change LPE point parameter"));
}
} // namespace Inkscape
/*
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 :
|
