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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
|
#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 "knot-holder-entity.h"
#include <libnr/nr-matrix-div.h>
#include <glibmm/i18n.h>
#include <2geom/point.h>
#include <2geom/matrix.h>
#include "svg/stringstream.h"
#include "xml/repr.h"
class SPDesktop;
static void pointparam_knot_clicked_handler (SPKnot *knot, guint state, gpointer data);
static void pointparam_knot_moved_handler(SPKnot *knot, NR::Point const *p, guint state, gpointer data);
static void pointparam_knot_ungrabbed_handler (SPKnot *knot, unsigned int state, PointParamKnotHolder *kh);
static void pointparam_knot_holder_class_init(PointParamKnotHolderClass *klass);
void pointparam_knot_holder_dispose(GObject *object);
static SPKnotHolderClass *parent_class;
/**
* Registers SPKnotHolder class and returns its type number.
*/
GType pointparam_knot_holder_get_type()
{
static GType type = 0;
if (!type) {
GTypeInfo info = {
sizeof(PointParamKnotHolderClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) pointparam_knot_holder_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (PointParamKnotHolder),
16, /* n_preallocs */
NULL,
NULL
};
type = g_type_register_static (G_TYPE_OBJECT, "InkscapePointParamKnotHolder", &info, (GTypeFlags) 0);
}
return type;
}
/**
* PointParamKnotHolder vtable initialization.
*/
static void pointparam_knot_holder_class_init(PointParamKnotHolderClass *klass)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) klass;
parent_class = (SPKnotHolderClass*) g_type_class_peek_parent(klass);
gobject_class->dispose = pointparam_knot_holder_dispose;
}
PointParamKnotHolder *pointparam_knot_holder_new(SPDesktop *desktop, SPObject *lpeobject, const gchar * key, SPItem *item)
{
g_return_val_if_fail(desktop != NULL, NULL);
g_return_val_if_fail(item != NULL, NULL);
g_return_val_if_fail(SP_IS_ITEM(item), NULL);
PointParamKnotHolder *knot_holder = (PointParamKnotHolder*)g_object_new (INKSCAPE_TYPE_POINTPARAM_KNOT_HOLDER, 0);
knot_holder->desktop = desktop;
knot_holder->item = item;
knot_holder->lpeobject = LIVEPATHEFFECT(lpeobject);
g_object_ref(G_OBJECT(item));
g_object_ref(G_OBJECT(lpeobject));
knot_holder->entity = NULL;
knot_holder->released = NULL;
knot_holder->repr = lpeobject->repr;
knot_holder->repr_key = key;
knot_holder->local_change = FALSE;
return knot_holder;
}
void pointparam_knot_holder_dispose(GObject *object) {
PointParamKnotHolder *kh = G_TYPE_CHECK_INSTANCE_CAST((object), INKSCAPE_TYPE_POINTPARAM_KNOT_HOLDER, PointParamKnotHolder);
g_object_unref(G_OBJECT(kh->item));
g_object_unref(G_OBJECT(kh->lpeobject));
while (kh->entity) {
SPKnotHolderEntity *e = (SPKnotHolderEntity *) kh->entity->data;
g_signal_handler_disconnect(e->knot, e->_click_handler_id);
g_signal_handler_disconnect(e->knot, e->_ungrab_handler_id);
/* unref should call destroy */
g_object_unref(e->knot);
g_free(e);
kh->entity = g_slist_remove(kh->entity, e);
}
}
void pointparam_knot_holder_destroy(PointParamKnotHolder *kh) {
g_object_unref(kh);
}
void pointparam_knot_holder_add_full(
PointParamKnotHolder *knot_holder,
Geom::Point & p,
void (* knot_click) (SPItem *item, guint state),
SPKnotShapeType shape,
SPKnotModeType mode,
guint32 color,
const gchar *tip )
{
g_return_if_fail(knot_holder != NULL);
SPItem *item = SP_ITEM(knot_holder->item);
/* create new SPKnotHolderEntry */
SPKnotHolderEntity *e = g_new(SPKnotHolderEntity, 1);
e->knot = sp_knot_new(knot_holder->desktop, tip);
e->knot_set = NULL;
e->knot_get = NULL;
if (knot_click) {
e->knot_click = knot_click;
} else {
e->knot_click = NULL;
}
g_object_set(G_OBJECT (e->knot->item), "shape", shape, NULL);
g_object_set(G_OBJECT (e->knot->item), "mode", mode, NULL);
e->knot->fill [SP_KNOT_STATE_NORMAL] = color;
g_object_set (G_OBJECT (e->knot->item), "fill_color", color, NULL);
knot_holder->entity = g_slist_append(knot_holder->entity, e);
/* Move to current point. */
NR::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), knot_holder);
e->_click_handler_id = g_signal_connect(e->knot, "clicked", G_CALLBACK(pointparam_knot_clicked_handler), knot_holder);
e->_ungrab_handler_id = g_signal_connect(e->knot, "ungrabbed", G_CALLBACK(pointparam_knot_ungrabbed_handler), knot_holder);
sp_knot_show(e->knot);
}
/**
* \param p In desktop coordinates.
*/
// don't write to XML yet...
//static
void pointparam_knotholder_update_knots(PointParamKnotHolder *knot_holder, SPItem *item)
{
NR::Matrix const i2d(sp_item_i2d_affine(item));
/*
for (GSList *el = knot_holder->entity; el; el = el->next) {
SPKnotHolderEntity *e = (SPKnotHolderEntity *) el->data;
GObject *kob = e->knot;
NR::Point dp( e->knot_get(item) * i2d );
g_signal_handler_block(kob, e->handler_id);
sp_knot_set_position(e->knot, &dp, SP_KNOT_STATE_NORMAL);
g_signal_handler_unblock(kob, e->handler_id);
}
knot_holder->lpeobject->lpe->setParameter(np->repr_key, svgpath);
knot_holder->lpeobject->requestModified(SP_OBJECT_MODIFIED_FLAG);
*/
}
static void pointparam_knot_clicked_handler(SPKnot *knot, guint state, gpointer data)
{
SPKnotHolder *knot_holder = (SPKnotHolder *) data;
SPItem *item = SP_ITEM (knot_holder->item);
/*
g_object_ref(knot_holder);
for (GSList *el = knot_holder->entity; el; el = el->next) {
SPKnotHolderEntity *e = (SPKnotHolderEntity *) el->data;
if (e->knot == knot) {
if (e->knot_click) {
e->knot_click(item, state);
}
break;
}
}
if (SP_IS_SHAPE(item)) {
sp_shape_set_shape(SP_SHAPE(item));
}
knotholder_update_knots(knot_holder, item);
g_object_unref(knot_holder);
// for drag, this is done by ungrabbed_handler, but for click we must do it here
sp_document_done(SP_OBJECT_DOCUMENT(knot_holder->item), SP_VERB_CONTEXT_LPE,
_("Change LPE point parameter"));
*/
}
static void pointparam_knot_moved_handler(SPKnot *knot, NR::Point const *p, guint state, gpointer data)
{
SPKnotHolder *knot_holder = (SPKnotHolder *) data;
SPItem *item = SP_ITEM (knot_holder->item);
/* // this was a local change and the knotholder does not need to be recreated:
knot_holder->local_change = TRUE;
for (GSList *el = knot_holder->entity; el; el = el->next) {
SPKnotHolderEntity *e = (SPKnotHolderEntity *) el->data;
if (e->knot == knot) {
NR::Point const q = *p / sp_item_i2d_affine(item);
e->knot_set(item, q, e->knot->drag_origin / sp_item_i2d_affine(item), state);
break;
}
}
if (SP_IS_SHAPE (item)) {
sp_shape_set_shape(SP_SHAPE (item));
}
knotholder_update_knots(knot_holder, item);
*/
}
static void pointparam_knot_ungrabbed_handler(SPKnot *knot, unsigned int /*state*/, PointParamKnotHolder *kh)
{
NR::Matrix const i2d(sp_item_i2d_affine(kh->item));
NR::Point pos = sp_knot_position(knot) / i2d;
Inkscape::SVGOStringStream os;
os << pos[0] << "," << pos[1];
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"));
}
/*
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 :
|
