ca65b5d761a7cd28e223686f71f8cd71456fd7b5
1 #define __SELTRANS_C__
3 /*
4 * Helper object for transforming selected items
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 * Carl Hetherington <inkscape@carlh.net>
10 *
11 * Copyright (C) 1999-2002 Lauris Kaplinski
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #ifdef HAVE_CONFIG_H
17 # include <config.h>
18 #endif
20 #include <libnr/nr-matrix-ops.h>
21 #include <libnr/nr-matrix-translate-ops.h>
22 #include <libnr/nr-rotate-ops.h>
23 #include <libnr/nr-scale-ops.h>
24 #include <libnr/nr-translate-matrix-ops.h>
25 #include <libnr/nr-translate-ops.h>
26 #include <gdk/gdkkeysyms.h>
27 #include "document.h"
28 #include "sp-namedview.h"
29 #include "desktop.h"
30 #include "desktop-handles.h"
31 #include "desktop-style.h"
32 #include "knot.h"
33 #include "snap.h"
34 #include "selection.h"
35 #include "select-context.h"
36 #include "sp-item.h"
37 #include "sp-item-transform.h"
38 #include "seltrans-handles.h"
39 #include "seltrans.h"
40 #include "selection-chemistry.h"
41 #include "sp-metrics.h"
42 #include <glibmm/i18n.h>
43 #include "display/sp-ctrlline.h"
44 #include "prefs-utils.h"
45 #include "xml/repr.h"
47 #include "isnan.h" //temp fix. make sure included last
49 static void sp_remove_handles(SPKnot *knot[], gint num);
51 static void sp_sel_trans_handle_grab(SPKnot *knot, guint state, gpointer data);
52 static void sp_sel_trans_handle_ungrab(SPKnot *knot, guint state, gpointer data);
53 static void sp_sel_trans_handle_new_event(SPKnot *knot, NR::Point *position, guint32 state, gpointer data);
54 static gboolean sp_sel_trans_handle_request(SPKnot *knot, NR::Point *p, guint state, gboolean *data);
56 extern GdkPixbuf *handles[];
58 static gboolean sp_seltrans_handle_event(SPKnot *knot, GdkEvent *event, gpointer)
59 {
60 switch (event->type) {
61 case GDK_MOTION_NOTIFY:
62 break;
63 case GDK_KEY_PRESS:
64 if (get_group0_keyval (&event->key) == GDK_space) {
65 /* stamping mode: both mode(show content and outline) operation with knot */
66 if (!SP_KNOT_IS_GRABBED(knot)) {
67 return FALSE;
68 }
69 SPDesktop *desktop = knot->desktop;
70 Inkscape::SelTrans *seltrans = SP_SELECT_CONTEXT(desktop->event_context)->_seltrans;
71 seltrans->stamp();
72 return TRUE;
73 }
74 break;
75 default:
76 break;
77 }
79 return FALSE;
80 }
82 Inkscape::SelTrans::SelTrans(SPDesktop *desktop) :
83 _desktop(desktop),
84 _selcue(desktop),
85 _state(STATE_SCALE),
86 _show(SHOW_CONTENT),
87 _grabbed(false),
88 _show_handles(true),
89 _box(NR::Point(0,0), NR::Point(0,0)),
90 _chandle(NULL),
91 _stamp_cache(NULL),
92 _message_context(desktop->messageStack())
93 {
94 g_return_if_fail(desktop != NULL);
96 for (int i = 0; i < 8; i++) {
97 _shandle[i] = NULL;
98 _rhandle[i] = NULL;
99 }
101 _updateVolatileState();
103 _center = _box.midpoint();
105 _updateHandles();
107 _selection = SP_DT_SELECTION(desktop);
109 _norm = sp_canvas_item_new(SP_DT_CONTROLS(desktop),
110 SP_TYPE_CTRL,
111 "anchor", GTK_ANCHOR_CENTER,
112 "mode", SP_CTRL_MODE_COLOR,
113 "shape", SP_CTRL_SHAPE_BITMAP,
114 "size", 13.0,
115 "filled", TRUE,
116 "fill_color", 0x00000000,
117 "stroked", TRUE,
118 "stroke_color", 0x000000a0,
119 "pixbuf", handles[12],
120 NULL);
122 _grip = sp_canvas_item_new(SP_DT_CONTROLS(desktop),
123 SP_TYPE_CTRL,
124 "anchor", GTK_ANCHOR_CENTER,
125 "mode", SP_CTRL_MODE_XOR,
126 "shape", SP_CTRL_SHAPE_CROSS,
127 "size", 7.0,
128 "filled", TRUE,
129 "fill_color", 0xffffff7f,
130 "stroked", TRUE,
131 "stroke_color", 0xffffffff,
132 "pixbuf", handles[12],
133 NULL);
135 sp_canvas_item_hide(_grip);
136 sp_canvas_item_hide(_norm);
138 for (int i = 0; i < 4; i++) {
139 _l[i] = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLLINE, NULL);
140 sp_canvas_item_hide(_l[i]);
141 }
143 _sel_changed_connection = _selection->connectChanged(
144 sigc::mem_fun(*this, &Inkscape::SelTrans::_selChanged)
145 );
147 _sel_modified_connection = _selection->connectModified(
148 sigc::mem_fun(*this, &Inkscape::SelTrans::_selModified)
149 );
150 }
152 Inkscape::SelTrans::~SelTrans()
153 {
154 _sel_changed_connection.disconnect();
155 _sel_modified_connection.disconnect();
157 for (unsigned int i = 0; i < 8; i++) {
158 if (_shandle[i]) {
159 g_object_unref(G_OBJECT(_shandle[i]));
160 _shandle[i] = NULL;
161 }
162 if (_rhandle[i]) {
163 g_object_unref(G_OBJECT(_rhandle[i]));
164 _rhandle[i] = NULL;
165 }
166 }
167 if (_chandle) {
168 g_object_unref(G_OBJECT(_chandle));
169 _chandle = NULL;
170 }
172 if (_norm) {
173 gtk_object_destroy(GTK_OBJECT(_norm));
174 _norm = NULL;
175 }
176 if (_grip) {
177 gtk_object_destroy(GTK_OBJECT(_grip));
178 _grip = NULL;
179 }
180 for (int i = 0; i < 4; i++) {
181 if (_l[i]) {
182 gtk_object_destroy(GTK_OBJECT(_l[i]));
183 _l[i] = NULL;
184 }
185 }
187 for (unsigned i = 0; i < _items.size(); i++) {
188 sp_object_unref(SP_OBJECT(_items[i].first), NULL);
189 }
191 _items.clear();
192 }
194 void Inkscape::SelTrans::resetState()
195 {
196 _state = STATE_SCALE;
197 }
199 void Inkscape::SelTrans::increaseState()
200 {
201 if (_state == STATE_SCALE) {
202 _state = STATE_ROTATE;
203 } else {
204 _state = STATE_SCALE;
205 }
207 _updateHandles();
208 }
210 void Inkscape::SelTrans::setCenter(NR::Point const &p)
211 {
212 _center = p;
213 _updateHandles();
214 }
216 void Inkscape::SelTrans::grab(NR::Point const &p, gdouble x, gdouble y, bool show_handles)
217 {
218 Inkscape::Selection *selection = SP_DT_SELECTION(_desktop);
220 g_return_if_fail(!_grabbed);
222 _grabbed = true;
223 _show_handles = show_handles;
224 _updateVolatileState();
226 _changed = false;
228 if (_empty) {
229 return;
230 }
232 for (GSList const *l = selection->itemList(); l; l = l->next) {
233 SPItem *it = (SPItem*)sp_object_ref(SP_OBJECT(l->data), NULL);
234 _items.push_back(std::pair<SPItem *, NR::Matrix>(it, sp_item_i2d_affine(it)));
235 }
237 _current.set_identity();
239 _point = p;
241 _snap_points = selection->getSnapPoints();
242 _bbox_points = selection->getBBoxPoints();
244 gchar const *scale_origin = prefs_get_string_attribute("tools.select", "scale_origin");
245 bool const origin_on_bbox = (scale_origin == NULL || !strcmp(scale_origin, "bbox"));
246 NR::Rect op_box = _box;
247 if (origin_on_bbox == false && _snap_points.empty() == false) {
248 std::vector<NR::Point>::iterator i = _snap_points.begin();
249 op_box = NR::Rect(*i, *i);
250 i++;
251 while (i != _snap_points.end()) {
252 op_box.expandTo(*i);
253 i++;
254 }
255 }
257 _opposite = ( op_box.min() + ( op_box.dimensions() * NR::scale(1-x, 1-y) ) );
259 if ((x != -1) && (y != -1)) {
260 sp_canvas_item_show(_norm);
261 sp_canvas_item_show(_grip);
262 }
264 if (_show == SHOW_OUTLINE) {
265 for (int i = 0; i < 4; i++)
266 sp_canvas_item_show(_l[i]);
267 }
270 _updateHandles();
271 g_return_if_fail(_stamp_cache == NULL);
272 }
274 void Inkscape::SelTrans::transform(NR::Matrix const &rel_affine, NR::Point const &norm)
275 {
276 g_return_if_fail(_grabbed);
277 g_return_if_fail(!_empty);
279 NR::Matrix const affine( NR::translate(-norm) * rel_affine * NR::translate(norm) );
281 if (_show == SHOW_CONTENT) {
282 // update the content
283 for (unsigned i = 0; i < _items.size(); i++) {
284 SPItem &item = *_items[i].first;
285 NR::Matrix const &prev_transform = _items[i].second;
286 sp_item_set_i2d_affine(&item, prev_transform * affine);
287 }
288 } else {
289 NR::Point p[4];
290 /* update the outline */
291 for (unsigned i = 0 ; i < 4 ; i++) {
292 p[i] = _box.corner(i) * affine;
293 }
294 for (unsigned i = 0 ; i < 4 ; i++) {
295 sp_ctrlline_set_coords(SP_CTRLLINE(_l[i]), p[i], p[(i+1)%4]);
296 }
297 }
299 _current = affine;
300 _changed = true;
301 _updateHandles();
302 }
304 void Inkscape::SelTrans::_centreTrans(Inkscape::XML::Node *current) const
305 {
306 for ( Inkscape::XML::Node *child = sp_repr_children(current) ; child ; child = sp_repr_next(child) ) {
307 _centreTrans(child);
308 }
309 double const cx = sp_repr_get_double_attribute(current, "inkscape:c_rx", 9999999);
310 double const cy = sp_repr_get_double_attribute(current, "inkscape:c_ry", 9999999);
311 if (cx != 9999999) {
312 NR::Point object_centre = NR::Point(cx, cy) * _current;
313 sp_repr_set_svg_double(current, "inkscape:c_rx", object_centre[NR::X]);
314 sp_repr_set_svg_double(current, "inkscape:c_ry", object_centre[NR::Y]);
315 }
316 }
321 void Inkscape::SelTrans::ungrab()
322 {
323 g_return_if_fail(_grabbed);
325 Inkscape::Selection *selection = SP_DT_SELECTION(_desktop);
327 bool updh = true;
328 if (!_empty && _changed) {
329 sp_selection_apply_affine(selection, _current, (_show == SHOW_OUTLINE)? true : false);
330 _center *= _current;
331 sp_document_done(SP_DT_DOCUMENT(_desktop));
332 updh = false;
333 }
335 for (unsigned i = 0; i < _items.size(); i++)
336 {
337 Inkscape::XML::Node *current = SP_OBJECT_REPR(_items[i].first);
338 if (current != NULL) {
339 _centreTrans(current);
340 }
342 sp_object_unref(SP_OBJECT(_items[i].first), NULL);
343 }
344 _items.clear();
346 _grabbed = false;
347 _show_handles = true;
349 sp_canvas_item_hide(_norm);
350 sp_canvas_item_hide(_grip);
352 if (_show == SHOW_OUTLINE) {
353 for (int i = 0; i < 4; i++)
354 sp_canvas_item_hide(_l[i]);
355 }
357 _updateVolatileState();
358 if (updh) {
359 _updateHandles();
360 }
361 if (_stamp_cache) {
362 g_slist_free(_stamp_cache);
363 _stamp_cache = NULL;
364 }
366 _message_context.clear();
367 }
369 /* fixme: This is really bad, as we compare positions for each stamp (Lauris) */
370 /* fixme: IMHO the best way to keep sort cache would be to implement timestamping at last */
372 void Inkscape::SelTrans::stamp()
373 {
374 Inkscape::Selection *selection = SP_DT_SELECTION(_desktop);
376 /* stamping mode */
377 if (!_empty) {
378 GSList *l;
379 if (_stamp_cache) {
380 l = _stamp_cache;
381 } else {
382 /* Build cache */
383 l = g_slist_copy((GSList *) selection->itemList());
384 l = g_slist_sort(l, (GCompareFunc) sp_object_compare_position);
385 _stamp_cache = l;
386 }
388 while (l) {
389 SPItem *original_item = SP_ITEM(l->data);
390 Inkscape::XML::Node *original_repr = SP_OBJECT_REPR(original_item);
392 // remember the position of the item
393 gint pos = original_repr->position();
394 // remember parent
395 Inkscape::XML::Node *parent = sp_repr_parent(original_repr);
397 Inkscape::XML::Node *copy_repr = original_repr->duplicate();
399 // add the new repr to the parent
400 parent->appendChild(copy_repr);
401 // move to the saved position
402 copy_repr->setPosition(pos > 0 ? pos : 0);
404 SPItem *copy_item = (SPItem *) SP_DT_DOCUMENT(_desktop)->getObjectByRepr(copy_repr);
406 NR::Matrix const *new_affine;
407 if (_show == SHOW_OUTLINE) {
408 NR::Matrix const i2d(sp_item_i2d_affine(original_item));
409 NR::Matrix const i2dnew( i2d * _current );
410 sp_item_set_i2d_affine(copy_item, i2dnew);
411 new_affine = ©_item->transform;
412 } else {
413 new_affine = &original_item->transform;
414 }
416 sp_item_write_transform(copy_item, copy_repr, *new_affine);
418 Inkscape::GC::release(copy_repr);
419 l = l->next;
420 }
421 sp_document_done(SP_DT_DOCUMENT(_desktop));
422 }
423 }
425 void Inkscape::SelTrans::_updateHandles()
426 {
427 if ( !_show_handles || _empty )
428 {
429 sp_remove_handles(_shandle, 8);
430 sp_remove_handles(_rhandle, 8);
431 sp_remove_handles(&_chandle, 1);
432 return;
433 }
435 // center handle
436 if ( _chandle == NULL ) {
437 _chandle = sp_knot_new(_desktop);
438 g_object_set(G_OBJECT(_chandle),
439 "anchor", handle_center.anchor,
440 "shape", SP_CTRL_SHAPE_BITMAP,
441 "size", 13,
442 "mode", SP_CTRL_MODE_XOR,
443 "fill", 0x00000000,
444 "fill_mouseover", 0x00000000,
445 "stroke", 0x000000ff,
446 "stroke_mouseover", 0xff0000b0,
447 "pixbuf", handles[handle_center.control],
448 "tip", _("<b>Center</b> of rotation and skewing: drag to reposition; scaling with Shift also uses this center"),
449 NULL);
450 g_signal_connect(G_OBJECT(_chandle), "request",
451 G_CALLBACK(sp_sel_trans_handle_request), (gpointer) &handle_center);
452 g_signal_connect(G_OBJECT(_chandle), "moved",
453 G_CALLBACK(sp_sel_trans_handle_new_event), (gpointer) &handle_center);
454 g_signal_connect(G_OBJECT(_chandle), "grabbed",
455 G_CALLBACK(sp_sel_trans_handle_grab), (gpointer) &handle_center);
456 g_signal_connect(G_OBJECT(_chandle), "ungrabbed",
457 G_CALLBACK(sp_sel_trans_handle_ungrab), (gpointer) &handle_center);
458 }
460 sp_remove_handles(&_chandle, 1);
461 if ( _state == STATE_SCALE ) {
462 sp_remove_handles(_rhandle, 8);
463 _showHandles(_shandle, handles_scale, 8,
464 _("<b>Squeeze or stretch</b> selection; with <b>Ctrl</b> to scale uniformly; with <b>Shift</b> to scale around rotation center"),
465 _("<b>Scale</b> selection; with <b>Ctrl</b> to scale uniformly; with <b>Shift</b> to scale around rotation center"));
466 } else {
467 sp_remove_handles(_shandle, 8);
468 _showHandles(_rhandle, handles_rotate, 8,
469 _("<b>Skew</b> selection; with <b>Ctrl</b> to snap angle; with <b>Shift</b> to skew around the opposite side"),
470 _("<b>Rotate</b> selection; with <b>Ctrl</b> to snap angle; with <b>Shift</b> to rotate around the opposite corner"));
471 }
472 if ( _state == STATE_SCALE ) {
473 sp_knot_hide(_chandle);
474 } else {
475 Inkscape::Selection *selection = _desktop->selection;
476 Inkscape::XML::Node *current = selection->singleRepr();
477 if (current != NULL && sp_repr_get_double_attribute(current, "inkscape:c_rx", 99999999) != 99999999) {
478 double cx = sp_repr_get_double_attribute(current, "inkscape:c_rx", _center[NR::X]);
479 double cy = sp_repr_get_double_attribute(current, "inkscape:c_ry", _center[NR::Y]);
480 _center = NR::Point(cx, cy);
481 }
482 sp_knot_show(_chandle);
483 sp_knot_moveto(_chandle, &_center);
484 }
485 }
487 void Inkscape::SelTrans::_updateVolatileState()
488 {
489 Inkscape::Selection *selection = SP_DT_SELECTION(_desktop);
490 _empty = selection->isEmpty();
492 if (_empty) {
493 return;
494 }
496 _box = selection->bounds();
497 if (_box.isEmpty()) {
498 _empty = true;
499 return;
500 }
502 _strokewidth = stroke_average_width (selection->itemList());
504 _current.set_identity();
505 }
507 static void sp_remove_handles(SPKnot *knot[], gint num)
508 {
509 for (int i = 0; i < num; i++) {
510 if (knot[i] != NULL) {
511 sp_knot_hide(knot[i]);
512 }
513 }
514 }
516 void Inkscape::SelTrans::_showHandles(SPKnot *knot[], SPSelTransHandle const handle[], gint num,
517 gchar const *even_tip, gchar const *odd_tip)
518 {
519 g_return_if_fail( !_empty );
521 for (int i = 0; i < num; i++) {
522 if (knot[i] == NULL) {
523 knot[i] = sp_knot_new(_desktop);
524 g_object_set(G_OBJECT(knot[i]),
525 "anchor", handle[i].anchor,
526 "shape", SP_CTRL_SHAPE_BITMAP,
527 "size", 13,
528 "mode", SP_KNOT_MODE_XOR,
529 "fill", 0x000000ff, // inversion
530 "fill_mouseover", 0x00ff6600, // green
531 "stroke", 0x000000ff, // inversion
532 "stroke_mouseover", 0x000000ff, // inversion
533 "pixbuf", handles[handle[i].control],
534 "tip", i % 2 ? even_tip : odd_tip,
535 NULL);
537 g_signal_connect(G_OBJECT(knot[i]), "request",
538 G_CALLBACK(sp_sel_trans_handle_request), (gpointer) &handle[i]);
539 g_signal_connect(G_OBJECT(knot[i]), "moved",
540 G_CALLBACK(sp_sel_trans_handle_new_event), (gpointer) &handle[i]);
541 g_signal_connect(G_OBJECT(knot[i]), "grabbed",
542 G_CALLBACK(sp_sel_trans_handle_grab), (gpointer) &handle[i]);
543 g_signal_connect(G_OBJECT(knot[i]), "ungrabbed",
544 G_CALLBACK(sp_sel_trans_handle_ungrab), (gpointer) &handle[i]);
545 g_signal_connect(G_OBJECT(knot[i]), "event", G_CALLBACK(sp_seltrans_handle_event), (gpointer) &handle[i]);
546 }
547 sp_knot_show(knot[i]);
549 NR::Point const handle_pt(handle[i].x, handle[i].y);
550 NR::Point p( _box.min()
551 + ( _box.dimensions()
552 * NR::scale(handle_pt) ) );
554 sp_knot_moveto(knot[i], &p);
555 }
556 }
558 static void sp_sel_trans_handle_grab(SPKnot *knot, guint state, gpointer data)
559 {
560 SP_SELECT_CONTEXT(knot->desktop->event_context)->_seltrans->handleGrab(
561 knot, state, *(SPSelTransHandle const *) data
562 );
563 }
565 static void sp_sel_trans_handle_ungrab(SPKnot *knot, guint state, gpointer data)
566 {
567 SP_SELECT_CONTEXT(knot->desktop->event_context)->_seltrans->ungrab();
568 }
570 static void sp_sel_trans_handle_new_event(SPKnot *knot, NR::Point *position, guint state, gpointer data)
571 {
572 SP_SELECT_CONTEXT(knot->desktop->event_context)->_seltrans->handleNewEvent(
573 knot, position, state, *(SPSelTransHandle const *) data
574 );
575 }
577 static gboolean sp_sel_trans_handle_request(SPKnot *knot, NR::Point *position, guint state, gboolean *data)
578 {
579 return SP_SELECT_CONTEXT(knot->desktop->event_context)->_seltrans->handleRequest(
580 knot, position, state, *(SPSelTransHandle const *) data
581 );
582 }
584 void Inkscape::SelTrans::handleGrab(SPKnot *knot, guint state, SPSelTransHandle const &handle)
585 {
586 switch (handle.anchor) {
587 case GTK_ANCHOR_CENTER:
588 g_object_set(G_OBJECT(_grip),
589 "shape", SP_CTRL_SHAPE_BITMAP,
590 "size", 13.0,
591 NULL);
592 sp_canvas_item_show(_grip);
593 break;
594 default:
595 g_object_set(G_OBJECT(_grip),
596 "shape", SP_CTRL_SHAPE_CROSS,
597 "size", 7.0,
598 NULL);
599 sp_canvas_item_show(_norm);
600 sp_canvas_item_show(_grip);
602 break;
603 }
605 grab(sp_knot_position(knot), handle.x, handle.y, FALSE);
606 }
609 void Inkscape::SelTrans::handleNewEvent(SPKnot *knot, NR::Point *position, guint state, SPSelTransHandle const &handle)
610 {
611 if (!SP_KNOT_IS_GRABBED(knot)) {
612 return;
613 }
615 // in case items have been unhooked from the document, don't
616 // try to continue processing events for them.
617 for (unsigned int i = 0; i < _items.size(); i++) {
618 if (!SP_OBJECT_DOCUMENT(SP_OBJECT(_items[i].first)) ) {
619 return;
620 }
621 }
623 handle.action(this, handle, *position, state);
624 }
627 gboolean Inkscape::SelTrans::handleRequest(SPKnot *knot, NR::Point *position, guint state, SPSelTransHandle const &handle)
628 {
629 if (!SP_KNOT_IS_GRABBED(knot)) {
630 return TRUE;
631 }
633 knot->desktop->set_coordinate_status(*position);
634 knot->desktop->setPosition(*position);
637 if (state & GDK_MOD1_MASK) {
638 *position = _point + ( *position - _point ) / 10;
639 }
641 if (!(state & GDK_SHIFT_MASK) == !(_state == STATE_ROTATE)) {
642 _origin = _opposite;
643 } else {
644 _origin = _center;
645 }
646 if (handle.request(this, handle, *position, state)) {
647 sp_knot_set_position(knot, position, state);
648 SP_CTRL(_grip)->moveto(*position);
649 SP_CTRL(_norm)->moveto(_origin);
650 }
652 return TRUE;
653 }
656 void Inkscape::SelTrans::_selChanged(Inkscape::Selection *selection)
657 {
658 if (!_grabbed) {
659 _updateVolatileState();
660 _center = _box.midpoint();
661 _updateHandles();
662 }
663 }
665 void Inkscape::SelTrans::_selModified(Inkscape::Selection *selection, guint flags)
666 {
667 if (!_grabbed) {
668 _updateVolatileState();
670 if (
671 (flags != (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG)) &&
672 (flags != SP_OBJECT_PARENT_MODIFIED_FLAG) &&
673 (flags != SP_OBJECT_CHILD_MODIFIED_FLAG) &&
674 !_changed) {
675 // Only reset center if object itself is modified (not style, parent or child),
676 // and this is not a local change by seltrans
677 // (still annoyingly recenters on keyboard transforms, fixme)
678 _center = _box.midpoint();
679 }
681 // reset internal flag
682 _changed = false;
684 _updateHandles();
685 }
686 }
688 /*
689 * handlers for handle move-request
690 */
692 /** Returns -1 or 1 according to the sign of x. Returns 1 for 0 and NaN. */
693 static double sign(double const x)
694 {
695 return ( x < 0
696 ? -1
697 : 1 );
698 }
700 gboolean sp_sel_trans_scale_request(Inkscape::SelTrans *seltrans,
701 SPSelTransHandle const &, NR::Point &pt, guint state)
702 {
703 return seltrans->scaleRequest(pt, state);
704 }
706 gboolean sp_sel_trans_stretch_request(Inkscape::SelTrans *seltrans,
707 SPSelTransHandle const &handle, NR::Point &pt, guint state)
708 {
709 return seltrans->stretchRequest(handle, pt, state);
710 }
712 gboolean sp_sel_trans_skew_request(Inkscape::SelTrans *seltrans,
713 SPSelTransHandle const &handle, NR::Point &pt, guint state)
714 {
715 return seltrans->skewRequest(handle, pt, state);
716 }
718 gboolean sp_sel_trans_rotate_request(Inkscape::SelTrans *seltrans,
719 SPSelTransHandle const &, NR::Point &pt, guint state)
720 {
721 return seltrans->rotateRequest(pt, state);
722 }
724 gboolean sp_sel_trans_center_request(Inkscape::SelTrans *seltrans,
725 SPSelTransHandle const &, NR::Point &pt, guint state)
726 {
727 return seltrans->centerRequest(pt, state);
728 }
730 gboolean Inkscape::SelTrans::scaleRequest(NR::Point &pt, guint state)
731 {
732 using NR::X;
733 using NR::Y;
735 NR::Point d = _point - _origin;
736 NR::scale s(0, 0);
738 /* Work out the new scale factors `s' */
739 for ( unsigned int i = 0 ; i < 2 ; i++ ) {
740 if ( fabs(d[i]) > 0.001 ) {
741 s[i] = ( pt[i] - _origin[i] ) / d[i];
742 if ( fabs(s[i]) < 1e-9 ) {
743 s[i] = 1e-9;
744 }
745 }
746 }
748 /* Get a STL list of the selected items.
749 ** FIXME: this should probably be done by Inkscape::Selection.
750 */
751 std::list<SPItem const*> it;
752 for (GSList const *i = _selection->itemList(); i != NULL; i = i->next) {
753 it.push_back(reinterpret_cast<SPItem*>(i->data));
754 }
756 if ((state & GDK_CONTROL_MASK) || _desktop->isToolboxButtonActive ("lock")) {
757 /* Scale is locked to a 1:1 aspect ratio, so that s[X] must be made to equal s[Y] */
759 NR::Dim2 locked_dim;
761 /* Lock aspect ratio, using the smaller of the x and y factors */
762 if (fabs(s[NR::X]) > fabs(s[NR::Y])) {
763 s[NR::X] = fabs(s[NR::Y]) * sign(s[NR::X]);
764 locked_dim = NR::X;
765 } else {
766 s[NR::Y] = fabs(s[NR::X]) * sign(s[NR::Y]);
767 locked_dim = NR::Y;
768 }
770 /* Snap the scale factor */
771 std::pair<double, bool> bb = namedview_vector_snap_list(_desktop->namedview,
772 Snapper::BBOX_POINT, _bbox_points,
773 _origin, s, it);
774 std::pair<double, bool> sn = namedview_vector_snap_list(_desktop->namedview,
775 Snapper::SNAP_POINT, _snap_points,
776 _origin, s, it);
778 double bd = bb.second ? fabs(bb.first - s[locked_dim]) : NR_HUGE;
779 double sd = sn.second ? fabs(sn.first - s[locked_dim]) : NR_HUGE;
780 double r = (bd < sd) ? bb.first : sn.first;
782 for ( unsigned int i = 0 ; i < 2 ; i++ ) {
783 s[i] = r * sign(s[i]);
784 }
786 } else {
787 /* Scale aspect ratio is unlocked */
788 for ( unsigned int i = 0 ; i < 2 ; i++ ) {
789 std::pair<double, bool> bb = namedview_dim_snap_list_scale(_desktop->namedview,
790 Snapper::BBOX_POINT, _bbox_points,
791 _origin, s[i], NR::Dim2(i), it);
792 std::pair<double, bool> sn = namedview_dim_snap_list_scale(_desktop->namedview,
793 Snapper::SNAP_POINT, _snap_points,
794 _origin, s[i], NR::Dim2(i), it);
796 /* Pick the snap that puts us closest to the original scale */
797 NR::Coord bd = bb.second ? fabs(bb.first - s[i]) : NR_HUGE;
798 NR::Coord sd = sn.second ? fabs(sn.first - s[i]) : NR_HUGE;
799 s[i] = (bd < sd) ? bb.first : sn.first;
800 }
801 }
803 /* Update the knot position */
804 pt = ( _point - _origin ) * s + _origin;
806 /* Status text */
807 _message_context.setF(Inkscape::NORMAL_MESSAGE,
808 _("<b>Scale</b>: %0.2f%% x %0.2f%%; with <b>Ctrl</b> to lock ratio"),
809 100 * s[NR::X], 100 * s[NR::Y]);
811 return TRUE;
812 }
814 gboolean Inkscape::SelTrans::stretchRequest(SPSelTransHandle const &handle, NR::Point &pt, guint state)
815 {
816 using NR::X;
817 using NR::Y;
819 NR::Dim2 axis, perp;
821 switch (handle.cursor) {
822 case GDK_TOP_SIDE:
823 case GDK_BOTTOM_SIDE:
824 axis = NR::Y;
825 perp = NR::X;
826 break;
827 case GDK_LEFT_SIDE:
828 case GDK_RIGHT_SIDE:
829 axis = NR::X;
830 perp = NR::Y;
831 break;
832 default:
833 g_assert_not_reached();
834 return TRUE;
835 };
837 if ( fabs( _point[axis] - _origin[axis] ) < 1e-15 ) {
838 return FALSE;
839 }
841 NR::scale s(1, 1);
842 s[axis] = ( ( pt[axis] - _origin[axis] )
843 / ( _point[axis] - _origin[axis] ) );
844 if ( fabs(s[axis]) < 1e-15 ) {
845 s[axis] = 1e-15;
846 }
848 /* Get a STL list of the selected items.
849 ** FIXME: this should probably be done by Inkscape::Selection.
850 */
851 std::list<SPItem const*> it;
852 for (GSList const *i = _selection->itemList(); i != NULL; i = i->next) {
853 it.push_back(reinterpret_cast<SPItem*>(i->data));
854 }
856 if ( state & GDK_CONTROL_MASK ) {
857 s[perp] = fabs(s[axis]);
859 std::pair<double, bool> sn = namedview_vector_snap_list(_desktop->namedview,
860 Snapper::BBOX_POINT,
861 _bbox_points, _origin, s, it);
862 std::pair<double, bool> bb = namedview_vector_snap_list(_desktop->namedview,
863 Snapper::SNAP_POINT,
864 _snap_points, _origin, s, it);
866 double bd = bb.second ? fabs(bb.first - s[axis]) : NR_HUGE;
867 double sd = sn.second ? fabs(sn.first - s[axis]) : NR_HUGE;
868 double ratio = (bd < sd) ? bb.first : sn.first;
870 s[axis] = fabs(ratio) * sign(s[axis]);
871 s[perp] = fabs(s[axis]);
872 } else {
873 std::pair<NR::Coord, bool> bb = namedview_dim_snap_list_scale(_desktop->namedview, Snapper::BBOX_POINT,
874 _bbox_points, _origin,
875 s[axis], axis, it);
876 std::pair<NR::Coord, bool> sn = namedview_dim_snap_list_scale(_desktop->namedview, Snapper::SNAP_POINT,
877 _snap_points, _origin,
878 s[axis], axis, it);
880 /* Pick the snap that puts us closest to the original scale */
881 NR::Coord bd = bb.second ? fabs(bb.first - s[axis]) : NR_HUGE;
882 NR::Coord sd = sn.second ? fabs(sn.first - s[axis]) : NR_HUGE;
883 s[axis] = (bd < sd) ? bb.first : sn.first;
884 }
886 pt = ( _point - _origin ) * NR::scale(s) + _origin;
887 if (isNaN(pt[X] + pt[Y])) {
888 g_warning("point=(%g, %g), norm=(%g, %g), s=(%g, %g)\n",
889 _point[X], _point[Y], _origin[X], _origin[Y], s[X], s[Y]);
890 }
892 // status text
893 _message_context.setF(Inkscape::NORMAL_MESSAGE,
894 _("<b>Scale</b>: %0.2f%% x %0.2f%%; with <b>Ctrl</b> to lock ratio"),
895 100 * s[NR::X], 100 * s[NR::Y]);
897 return TRUE;
898 }
900 gboolean Inkscape::SelTrans::skewRequest(SPSelTransHandle const &handle, NR::Point &pt, guint state)
901 {
902 using NR::X;
903 using NR::Y;
905 if (handle.cursor != GDK_SB_V_DOUBLE_ARROW && handle.cursor != GDK_SB_H_DOUBLE_ARROW) {
906 return FALSE;
907 }
909 NR::Dim2 dim_a;
910 NR::Dim2 dim_b;
911 if (handle.cursor == GDK_SB_V_DOUBLE_ARROW) {
912 dim_a = X;
913 dim_b = Y;
914 } else {
915 dim_a = Y;
916 dim_b = X;
917 }
919 double skew[2];
920 double s[2] = { 1.0, 1.0 };
922 if (fabs(_point[dim_a] - _origin[dim_a]) < NR_EPSILON) {
923 return FALSE;
924 }
926 skew[dim_a] = ( pt[dim_b] - _point[dim_b] ) / ( _point[dim_a] - _origin[dim_a] );
928 s[dim_a] = ( pt[dim_a] - _origin[dim_a] ) / ( _point[dim_a] - _origin[dim_a] );
930 if ( fabs(s[dim_a]) < 1 ) {
931 s[dim_a] = sign(s[dim_a]);
932 } else {
933 s[dim_a] = floor( s[dim_a] + 0.5 );
934 }
936 double radians = atan(skew[dim_a] / s[dim_a]);
938 if (state & GDK_CONTROL_MASK) {
940 int snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12);
942 if (snaps) {
943 double sections = floor( radians * snaps / M_PI + .5 );
944 if (fabs(sections) >= snaps / 2) sections = sign(sections) * (snaps / 2 - 1);
945 radians = ( M_PI / snaps ) * sections;
946 }
947 skew[dim_a] = tan(radians) * s[dim_a];
948 } else {
949 skew[dim_a] = namedview_dim_snap_list_skew(_desktop->namedview,
950 Snapper::SNAP_POINT, _snap_points,
951 _origin, skew[dim_a], dim_b);
952 }
954 pt[dim_b] = ( _point[dim_a] - _origin[dim_a] ) * skew[dim_a] + _point[dim_b];
955 pt[dim_a] = ( _point[dim_a] - _origin[dim_a] ) * s[dim_a] + _origin[dim_a];
957 /* status text */
958 double degrees = 180 / M_PI * radians;
959 if (degrees > 180) degrees -= 360;
960 if (degrees < -180) degrees += 360;
962 _message_context.setF(Inkscape::NORMAL_MESSAGE,
963 // TRANSLATORS: don't modify the first ";"
964 // (it will NOT be displayed as ";" - only the second one will be)
965 _("<b>Skew</b>: %0.2f°; with <b>Ctrl</b> to snap angle"),
966 degrees);
968 return TRUE;
969 }
971 gboolean Inkscape::SelTrans::rotateRequest(NR::Point &pt, guint state)
972 {
973 int snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12);
975 // rotate affine in rotate
976 NR::Point const d1 = _point - _origin;
977 NR::Point const d2 = pt - _origin;
979 NR::Coord const h1 = NR::L2(d1);
980 if (h1 < 1e-15) return FALSE;
981 NR::Point q1 = d1 / h1;
982 NR::Coord const h2 = NR::L2(d2);
983 if (fabs(h2) < 1e-15) return FALSE;
984 NR::Point q2 = d2 / h2;
986 double radians;
987 if (state & GDK_CONTROL_MASK) {
988 /* Have to restrict movement. */
989 double cos_t = NR::dot(q1, q2);
990 double sin_t = NR::dot(NR::rot90(q1), q2);
991 radians = atan2(sin_t, cos_t);
992 if (snaps) {
993 radians = ( M_PI / snaps ) * floor( radians * snaps / M_PI + .5 );
994 }
995 q1 = NR::Point(1, 0);
996 q2 = NR::Point(cos(radians), sin(radians));
997 } else {
998 radians = atan2(NR::dot(NR::rot90(d1), d2),
999 NR::dot(d1, d2));
1000 }
1002 NR::rotate const r1(q1);
1003 NR::rotate const r2(q2);
1004 pt = _point * NR::translate(-_origin) * ( r2 / r1 ) * NR::translate(_origin);
1006 /* status text */
1007 double degrees = 180 / M_PI * radians;
1008 if (degrees > 180) degrees -= 360;
1009 if (degrees < -180) degrees += 360;
1011 _message_context.setF(Inkscape::NORMAL_MESSAGE,
1012 // TRANSLATORS: don't modify the first ";"
1013 // (it will NOT be displayed as ";" - only the second one will be)
1014 _("<b>Rotate</b>: %0.2f°; with <b>Ctrl</b> to snap angle"), degrees);
1016 return TRUE;
1017 }
1019 gboolean Inkscape::SelTrans::centerRequest(NR::Point &pt, guint state)
1020 {
1021 using NR::X;
1022 using NR::Y;
1024 SnapManager const m(_desktop->namedview);
1025 pt = m.freeSnap(Snapper::SNAP_POINT, pt, NULL).getPoint();
1027 if (state & GDK_CONTROL_MASK) {
1028 if ( fabs(_point[X] - pt[X]) > fabs(_point[Y] - pt[Y]) ) {
1029 pt[Y] = _point[Y];
1030 } else {
1031 pt[X] = _point[X];
1032 }
1033 }
1035 Inkscape::Selection *selection = _desktop->selection;
1036 Inkscape::XML::Node *current = selection->singleRepr();
1037 if (current != NULL){
1038 sp_repr_set_svg_double(current, "inkscape:c_rx", pt[X]);
1039 sp_repr_set_svg_double(current, "inkscape:c_ry", pt[Y]);
1041 }
1043 if (!(state & GDK_SHIFT_MASK)) {
1044 // screen pixels to snap center to bbox
1045 #define SNAP_DIST 5
1046 // FIXME: take from prefs
1047 double snap_dist = SNAP_DIST / _desktop->current_zoom();
1049 for (int i = 0; i < 2; i++) {
1051 if (fabs(pt[i] - _box.min()[i]) < snap_dist) {
1052 pt[i] = _box.min()[i];
1053 }
1054 if (fabs(pt[i] - _box.midpoint()[i]) < snap_dist) {
1055 pt[i] = _box.midpoint()[i];
1056 }
1057 if (fabs(pt[i] - _box.max()[i]) < snap_dist) {
1058 pt[i] = _box.max()[i];
1059 }
1060 }
1061 }
1063 // status text
1064 GString *xs = SP_PX_TO_METRIC_STRING(pt[X], _desktop->namedview->getDefaultMetric());
1065 GString *ys = SP_PX_TO_METRIC_STRING(pt[Y], _desktop->namedview->getDefaultMetric());
1066 _message_context.setF(Inkscape::NORMAL_MESSAGE, _("Move <b>center</b> to %s, %s"), xs->str, ys->str);
1067 g_string_free(xs, FALSE);
1068 g_string_free(ys, FALSE);
1070 return TRUE;
1071 }
1073 /*
1074 * handlers for handle movement
1075 *
1076 */
1078 void sp_sel_trans_stretch(Inkscape::SelTrans *seltrans, SPSelTransHandle const &handle, NR::Point &pt, guint state)
1079 {
1080 seltrans->stretch(handle, pt, state);
1081 }
1083 void sp_sel_trans_scale(Inkscape::SelTrans *seltrans, SPSelTransHandle const &, NR::Point &pt, guint state)
1084 {
1085 seltrans->scale(pt, state);
1086 }
1088 void sp_sel_trans_skew(Inkscape::SelTrans *seltrans, SPSelTransHandle const &handle, NR::Point &pt, guint state)
1089 {
1090 seltrans->skew(handle, pt, state);
1091 }
1093 void sp_sel_trans_rotate(Inkscape::SelTrans *seltrans, SPSelTransHandle const &, NR::Point &pt, guint state)
1094 {
1095 seltrans->rotate(pt, state);
1096 }
1098 void Inkscape::SelTrans::stretch(SPSelTransHandle const &handle, NR::Point &pt, guint state)
1099 {
1100 using NR::X;
1101 using NR::Y;
1103 NR::Dim2 dim;
1104 switch (handle.cursor) {
1105 case GDK_LEFT_SIDE:
1106 case GDK_RIGHT_SIDE:
1107 dim = X;
1108 break;
1109 case GDK_TOP_SIDE:
1110 case GDK_BOTTOM_SIDE:
1111 dim = Y;
1112 break;
1113 default:
1114 g_assert_not_reached();
1115 abort();
1116 break;
1117 }
1119 NR::Point const scale_origin(_origin);
1120 double const offset = _point[dim] - scale_origin[dim];
1121 if (!( fabs(offset) >= 1e-15 )) {
1122 return;
1123 }
1124 NR::scale s(1, 1);
1125 s[dim] = ( pt[dim] - scale_origin[dim] ) / offset;
1126 if (isNaN(s[dim])) {
1127 g_warning("s[dim]=%g, pt[dim]=%g, scale_origin[dim]=%g, point[dim]=%g\n",
1128 s[dim], pt[dim], scale_origin[dim], _point[dim]);
1129 }
1130 if (!( fabs(s[dim]) >= 1e-15 )) {
1131 s[dim] = 1e-15;
1132 }
1133 if (state & GDK_CONTROL_MASK) {
1134 /* Preserve aspect ratio, but never flip in the dimension not being edited. */
1135 s[!dim] = fabs(s[dim]);
1136 }
1138 NR::Rect new_bbox = _box * (NR::translate(-scale_origin) * NR::Matrix(s) * NR::translate(scale_origin));
1140 int transform_stroke = prefs_get_int_attribute ("options.transform", "stroke", 1);
1141 NR::Matrix scaler = get_scale_transform_with_stroke (_box, _strokewidth, transform_stroke,
1142 new_bbox.min()[NR::X], new_bbox.min()[NR::Y], new_bbox.max()[NR::X], new_bbox.max()[NR::Y]);
1144 transform(scaler, NR::Point(0, 0)); // we have already accounted for origin, so pass 0,0
1145 }
1147 void Inkscape::SelTrans::scale(NR::Point &pt, guint state)
1148 {
1149 NR::Point const offset = _point - _origin;
1151 NR::scale s (1, 1);
1152 for (int i = NR::X; i <= NR::Y; i++) {
1153 if (fabs(offset[i]) > 1e-9)
1154 s[i] = (pt[i] - _origin[i]) / offset[i];
1155 if (fabs(s[i]) < 1e-9)
1156 s[i] = 1e-9;
1157 }
1158 NR::Rect new_bbox = _box * (NR::translate(-_origin) * NR::Matrix(s) * NR::translate(_origin));
1160 int transform_stroke = prefs_get_int_attribute ("options.transform", "stroke", 1);
1161 NR::Matrix scaler = get_scale_transform_with_stroke (_box, _strokewidth, transform_stroke,
1162 new_bbox.min()[NR::X], new_bbox.min()[NR::Y], new_bbox.max()[NR::X], new_bbox.max()[NR::Y]);
1164 transform(scaler, NR::Point(0, 0)); // we have already accounted for origin, so pass 0,0
1165 }
1167 void Inkscape::SelTrans::skew(SPSelTransHandle const &handle, NR::Point &pt, guint state)
1168 {
1169 NR::Point const offset = _point - _origin;
1171 unsigned dim;
1172 switch (handle.cursor) {
1173 case GDK_SB_H_DOUBLE_ARROW:
1174 dim = NR::Y;
1175 break;
1176 case GDK_SB_V_DOUBLE_ARROW:
1177 dim = NR::X;
1178 break;
1179 default:
1180 g_assert_not_reached();
1181 abort();
1182 break;
1183 }
1184 if (fabs(offset[dim]) < 1e-15) {
1185 return;
1186 }
1187 NR::Matrix skew = NR::identity();
1188 skew[2*dim + dim] = (pt[dim] - _origin[dim]) / offset[dim];
1189 skew[2*dim + (1-dim)] = (pt[1-dim] - _point[1-dim]) / offset[dim];
1190 skew[2*(1-dim) + (dim)] = 0;
1191 skew[2*(1-dim) + (1-dim)] = 1;
1193 for (int i = 0; i < 2; i++) {
1194 if (fabs(skew[3*i]) < 1e-15) {
1195 skew[3*i] = 1e-15;
1196 }
1197 }
1198 transform(skew, _origin);
1199 }
1201 void Inkscape::SelTrans::rotate(NR::Point &pt, guint state)
1202 {
1203 NR::Point const offset = _point - _origin;
1205 NR::Coord const h1 = NR::L2(offset);
1206 if (h1 < 1e-15) {
1207 return;
1208 }
1209 NR::Point const q1 = offset / h1;
1210 NR::Coord const h2 = NR::L2( pt - _origin );
1211 if (h2 < 1e-15) {
1212 return;
1213 }
1214 NR::Point const q2 = (pt - _origin) / h2;
1215 NR::rotate const r1(q1);
1216 NR::rotate const r2(q2);
1218 NR::Matrix rotate( r2 / r1 );
1219 transform(rotate, _origin);
1220 }
1222 void sp_sel_trans_center(Inkscape::SelTrans *seltrans, SPSelTransHandle const &, NR::Point &pt, guint state)
1223 {
1224 seltrans->setCenter(pt);
1225 }
1228 void Inkscape::SelTrans::moveTo(NR::Point const &xy, guint state)
1229 {
1230 SnapManager const m(_desktop->namedview);
1232 /* The amount that we've moved by during this drag */
1233 NR::Point dxy = xy - _point;
1235 /* Get a STL list of the selected items.
1236 ** FIXME: this should probably be done by Inkscape::Selection.
1237 */
1238 std::list<SPItem const*> it;
1239 for (GSList const *i = _selection->itemList(); i != NULL; i = i->next) {
1240 it.push_back(reinterpret_cast<SPItem*>(i->data));
1241 }
1243 bool const alt = (state & GDK_MOD1_MASK);
1244 bool const control = (state & GDK_CONTROL_MASK);
1245 bool const shift = (state & GDK_SHIFT_MASK);
1247 if (alt) {
1249 /* Alt pressed means keep offset: snap the moved distance to the grid.
1250 ** FIXME: this will snap to more than just the grid, nowadays.
1251 */
1253 dxy = m.freeSnap(Snapper::SNAP_POINT, dxy, NULL).getPoint();
1255 } else if (!shift) {
1257 /* We're snapping to things, possibly with a constraint to horizontal or
1258 ** vertical movement. Obtain a list of possible translations and then
1259 ** pick the smallest.
1260 */
1262 /* This will be our list of possible translations */
1263 std::list<std::pair<NR::Point, bool> > s;
1265 if (control) {
1267 /* Snap to things, and also constrain to horizontal or vertical movement */
1269 for (unsigned int dim = 0; dim < 2; dim++) {
1270 s.push_back(m.constrainedSnapTranslation(Inkscape::Snapper::BBOX_POINT,
1271 _bbox_points,
1272 component_vectors[dim], it, dxy));
1273 s.push_back(m.constrainedSnapTranslation(Inkscape::Snapper::SNAP_POINT,
1274 _snap_points,
1275 component_vectors[dim], it, dxy));
1276 }
1278 } else {
1280 /* Snap to things with no constraint */
1282 s.push_back(m.freeSnapTranslation(Inkscape::Snapper::BBOX_POINT,
1283 _bbox_points, it, dxy));
1284 s.push_back(m.freeSnapTranslation(Inkscape::Snapper::SNAP_POINT,
1285 _snap_points, it, dxy));
1286 }
1288 /* Pick one */
1289 NR::Coord best = NR_HUGE;
1290 for (std::list<std::pair<NR::Point, bool> >::const_iterator i = s.begin(); i != s.end(); i++) {
1291 if (i->second) {
1292 NR::Coord const m = NR::L2(i->first);
1293 if (m < best) {
1294 best = m;
1295 dxy = i->first;
1296 }
1297 }
1298 }
1299 }
1301 if (control) {
1302 /* Ensure that the horizontal and vertical constraint has been applied */
1303 if (fabs(dxy[NR::X]) > fabs(dxy[NR::Y])) {
1304 dxy[NR::Y] = 0;
1305 } else {
1306 dxy[NR::X] = 0;
1307 }
1308 }
1310 NR::Matrix const move((NR::translate(dxy)));
1311 NR::Point const norm(0, 0);
1312 transform(move, norm);
1314 // status text
1315 GString *xs = SP_PX_TO_METRIC_STRING(dxy[NR::X], _desktop->namedview->getDefaultMetric());
1316 GString *ys = SP_PX_TO_METRIC_STRING(dxy[NR::Y], _desktop->namedview->getDefaultMetric());
1317 _message_context.setF(Inkscape::NORMAL_MESSAGE, _("<b>Move</b> by %s, %s; with <b>Ctrl</b> to restrict to horizontal/vertical; with <b>Shift</b> to disable snapping"), xs->str, ys->str);
1318 g_string_free(xs, TRUE);
1319 g_string_free(ys, TRUE);
1320 }
1323 /*
1324 Local Variables:
1325 mode:c++
1326 c-file-style:"stroustrup"
1327 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1328 indent-tabs-mode:nil
1329 fill-column:99
1330 End:
1331 */
1332 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :