1 #define __SP_NODE_CONTEXT_C__
3 /*
4 * Node editing context
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * This code is in public domain
11 */
13 #ifdef HAVE_CONFIG_H
14 # include "config.h"
15 #endif
16 #include <cstring>
17 #include <string>
18 #include <gdk/gdkkeysyms.h>
19 #include "macros.h"
20 #include <glibmm/i18n.h>
21 #include "display/sp-canvas-util.h"
22 #include "object-edit.h"
23 #include "sp-path.h"
24 #include "path-chemistry.h"
25 #include "rubberband.h"
26 #include "desktop.h"
27 #include "desktop-handles.h"
28 #include "selection.h"
29 #include "pixmaps/cursor-node.xpm"
30 #include "message-context.h"
31 #include "node-context.h"
32 #include "pixmaps/cursor-node-d.xpm"
33 #include "preferences.h"
34 #include "xml/node-event-vector.h"
35 #include "style.h"
36 #include "splivarot.h"
37 #include "shape-editor.h"
38 #include "live_effects/effect.h"
40 #include "sp-lpe-item.h"
42 // needed for flash nodepath upon mouseover:
43 #include "display/canvas-bpath.h"
44 #include "display/curve.h"
46 static void sp_node_context_class_init(SPNodeContextClass *klass);
47 static void sp_node_context_init(SPNodeContext *node_context);
48 static void sp_node_context_dispose(GObject *object);
50 static void sp_node_context_setup(SPEventContext *ec);
51 static gint sp_node_context_root_handler(SPEventContext *event_context, GdkEvent *event);
52 static gint sp_node_context_item_handler(SPEventContext *event_context,
53 SPItem *item, GdkEvent *event);
55 static SPEventContextClass *parent_class;
57 GType
58 sp_node_context_get_type()
59 {
60 static GType type = 0;
61 if (!type) {
62 GTypeInfo info = {
63 sizeof(SPNodeContextClass),
64 NULL, NULL,
65 (GClassInitFunc) sp_node_context_class_init,
66 NULL, NULL,
67 sizeof(SPNodeContext),
68 4,
69 (GInstanceInitFunc) sp_node_context_init,
70 NULL, /* value_table */
71 };
72 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPNodeContext", &info, (GTypeFlags)0);
73 }
74 return type;
75 }
77 static void
78 sp_node_context_class_init(SPNodeContextClass *klass)
79 {
80 GObjectClass *object_class = (GObjectClass *) klass;
81 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
83 parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
85 object_class->dispose = sp_node_context_dispose;
87 event_context_class->setup = sp_node_context_setup;
88 event_context_class->root_handler = sp_node_context_root_handler;
89 event_context_class->item_handler = sp_node_context_item_handler;
90 }
92 static void
93 sp_node_context_init(SPNodeContext *node_context)
94 {
95 SPEventContext *event_context = SP_EVENT_CONTEXT(node_context);
97 event_context->cursor_shape = cursor_node_xpm;
98 event_context->hot_x = 1;
99 event_context->hot_y = 1;
101 node_context->leftalt = FALSE;
102 node_context->rightalt = FALSE;
103 node_context->leftctrl = FALSE;
104 node_context->rightctrl = FALSE;
106 new (&node_context->sel_changed_connection) sigc::connection();
108 node_context->flash_tempitem = NULL;
109 node_context->flashed_item = NULL;
110 node_context->remove_flash_counter = 0;
111 }
113 static void
114 sp_node_context_dispose(GObject *object)
115 {
116 SPNodeContext *nc = SP_NODE_CONTEXT(object);
117 SPEventContext *ec = SP_EVENT_CONTEXT(object);
119 ec->enableGrDrag(false);
121 nc->sel_changed_connection.disconnect();
122 nc->sel_changed_connection.~connection();
124 delete nc->shape_editor;
126 if (nc->_node_message_context) {
127 delete nc->_node_message_context;
128 }
130 G_OBJECT_CLASS(parent_class)->dispose(object);
131 }
133 static void
134 sp_node_context_setup(SPEventContext *ec)
135 {
136 SPNodeContext *nc = SP_NODE_CONTEXT(ec);
138 if (((SPEventContextClass *) parent_class)->setup)
139 ((SPEventContextClass *) parent_class)->setup(ec);
141 Inkscape::Selection *selection = sp_desktop_selection (ec->desktop);
142 nc->sel_changed_connection.disconnect();
143 nc->sel_changed_connection =
144 selection->connectChanged(sigc::bind(sigc::ptr_fun(&sp_node_context_selection_changed), (gpointer)nc));
146 SPItem *item = selection->singleItem();
148 nc->shape_editor = new ShapeEditor(ec->desktop);
150 nc->rb_escaped = false;
152 nc->cursor_drag = false;
154 nc->added_node = false;
156 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
158 if (item) {
159 nc->shape_editor->set_item(item, SH_NODEPATH);
160 nc->shape_editor->set_item(item, SH_KNOTHOLDER);
161 }
163 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
164 if (prefs->getBool("/tools/nodes/selcue")) {
165 ec->enableSelectionCue();
166 }
167 if (prefs->getBool("/tools/nodes/gradientdrag")) {
168 ec->enableGrDrag();
169 }
171 ec->desktop->emitToolSubselectionChanged(NULL); // sets the coord entry fields to inactive
173 nc->_node_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
175 nc->shape_editor->update_statusbar();
176 }
178 static void
179 sp_node_context_flash_path(SPEventContext *event_context, SPItem *item, guint timeout) {
180 SPNodeContext *nc = SP_NODE_CONTEXT(event_context);
182 nc->remove_flash_counter = 3; // for some reason root_handler is called twice after each item_handler...
183 if (nc->flashed_item != item) {
184 // we entered a new item
185 nc->flashed_item = item;
186 SPDesktop *desktop = event_context->desktop;
187 if (nc->flash_tempitem) {
188 desktop->remove_temporary_canvasitem(nc->flash_tempitem);
189 nc->flash_tempitem = NULL;
190 }
192 SPCanvasItem *canvasitem = NULL;
193 if (SP_IS_PATH(item)) {
194 canvasitem = sp_nodepath_helperpath_from_path(desktop, SP_PATH(item));
195 } else {
196 g_print ("-----> sp_node_context_flash_path(): TODO: generate the helper path!!\n");
197 }
199 if (canvasitem) {
200 nc->flash_tempitem = desktop->add_temporary_canvasitem (canvasitem, timeout);
201 }
202 }
203 }
205 /**
206 \brief Callback that processes the "changed" signal on the selection;
207 destroys old and creates new nodepath and reassigns listeners to the new selected item's repr
208 */
209 void
210 sp_node_context_selection_changed(Inkscape::Selection *selection, gpointer data)
211 {
212 SPNodeContext *nc = SP_NODE_CONTEXT(data);
214 // TODO: update ShapeEditorsCollective instead
215 nc->shape_editor->unset_item(SH_NODEPATH);
216 nc->shape_editor->unset_item(SH_KNOTHOLDER);
217 SPItem *item = selection->singleItem();
218 nc->shape_editor->set_item(item, SH_NODEPATH);
219 nc->shape_editor->set_item(item, SH_KNOTHOLDER);
220 nc->shape_editor->update_statusbar();
221 }
223 void
224 sp_node_context_show_modifier_tip(SPEventContext *event_context, GdkEvent *event)
225 {
226 sp_event_show_modifier_tip
227 (event_context->defaultMessageContext(), event,
228 _("<b>Ctrl</b>: toggle node type, snap handle angle, move hor/vert; <b>Ctrl+Alt</b>: move along handles"),
229 _("<b>Shift</b>: toggle node selection, disable snapping, rotate both handles"),
230 _("<b>Alt</b>: lock handle length; <b>Ctrl+Alt</b>: move along handles"));
231 }
233 static gint
234 sp_node_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
235 {
236 gint ret = FALSE;
237 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
239 if (prefs->getBool("/tools/nodes/pathflash_enabled")) {
240 guint timeout = prefs->getInt("/tools/nodes/pathflash_timeout", 500);
241 if (SP_IS_LPE_ITEM(item)) {
242 Inkscape::LivePathEffect::Effect *lpe = sp_lpe_item_get_current_lpe(SP_LPE_ITEM(item));
243 if (lpe && (lpe->providesOwnFlashPaths() ||
244 lpe->pathFlashType() == Inkscape::LivePathEffect::SUPPRESS_FLASH)) {
245 // path should be suppressed or permanent; this is handled in
246 // sp_node_context_selection_changed()
247 return ret;
248 }
249 }
250 sp_node_context_flash_path(event_context, item, timeout);
251 }
253 if (((SPEventContextClass *) parent_class)->item_handler)
254 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
256 return ret;
257 }
259 static gint
260 sp_node_context_root_handler(SPEventContext *event_context, GdkEvent *event)
261 {
262 SPDesktop *desktop = event_context->desktop;
263 Inkscape::Selection *selection = sp_desktop_selection (desktop);
264 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
266 SPNodeContext *nc = SP_NODE_CONTEXT(event_context);
267 double const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000); // in px
268 event_context->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100); // read every time, to make prefs changes really live
269 int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
270 double const offset = prefs->getDoubleLimited("/options/defaultscale/value", 2, 0, 1000);
272 if ( (nc->flash_tempitem) && (nc->remove_flash_counter <= 0) ) {
273 desktop->remove_temporary_canvasitem(nc->flash_tempitem);
274 nc->flash_tempitem = NULL;
275 nc->flashed_item = NULL; // also reset this one, so the next time the same object is hovered over it shows again the highlight
276 } else {
277 nc->remove_flash_counter--;
278 }
280 gint ret = FALSE;
281 switch (event->type) {
282 case GDK_BUTTON_PRESS:
283 if (event->button.button == 1 && !event_context->space_panning) {
284 // save drag origin
285 event_context->xp = (gint) event->button.x;
286 event_context->yp = (gint) event->button.y;
287 event_context->within_tolerance = true;
288 nc->shape_editor->cancel_hit();
290 if (!(event->button.state & GDK_SHIFT_MASK)) {
291 if (!nc->drag) {
292 if (nc->shape_editor->has_nodepath() && selection->single() /* && item_over */) {
293 // save drag origin
294 bool over_stroke = nc->shape_editor->is_over_stroke(NR::Point(event->button.x, event->button.y), true);
295 //only dragging curves
296 if (over_stroke) {
297 ret = TRUE;
298 break;
299 }
300 }
301 }
302 }
303 NR::Point const button_w(event->button.x,
304 event->button.y);
305 NR::Point const button_dt(desktop->w2d(button_w));
306 Inkscape::Rubberband::get(desktop)->start(desktop, button_dt);
307 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
308 desktop->updateNow();
309 ret = TRUE;
310 }
311 break;
312 case GDK_MOTION_NOTIFY:
313 if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
315 if ( event_context->within_tolerance
316 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
317 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
318 break; // do not drag if we're within tolerance from origin
319 }
321 // The path went away while dragging; throw away any further motion
322 // events until the mouse pointer is released.
324 if (nc->shape_editor->hits_curve() && !nc->shape_editor->has_nodepath()) {
325 break;
326 }
328 // Once the user has moved farther than tolerance from the original location
329 // (indicating they intend to move the object, not click), then always process the
330 // motion notify coordinates as given (no snapping back to origin)
331 event_context->within_tolerance = false;
333 // Once we determine what the user is doing (dragging either a node or the
334 // selection rubberband), make sure we continue to perform that operation
335 // until the mouse pointer is lifted.
336 if (nc->current_state == SP_NODE_CONTEXT_INACTIVE) {
337 if (nc->shape_editor->hits_curve() && nc->shape_editor->has_nodepath()) {
338 nc->current_state = SP_NODE_CONTEXT_NODE_DRAGGING;
339 } else {
340 nc->current_state = SP_NODE_CONTEXT_RUBBERBAND_DRAGGING;
341 }
342 }
344 switch (nc->current_state) {
345 case SP_NODE_CONTEXT_NODE_DRAGGING:
346 {
347 nc->shape_editor->curve_drag (event->motion.x, event->motion.y);
349 gobble_motion_events(GDK_BUTTON1_MASK);
350 break;
351 }
352 case SP_NODE_CONTEXT_RUBBERBAND_DRAGGING:
353 if (Inkscape::Rubberband::get(desktop)->is_started()) {
354 NR::Point const motion_w(event->motion.x,
355 event->motion.y);
356 NR::Point const motion_dt(desktop->w2d(motion_w));
357 Inkscape::Rubberband::get(desktop)->move(motion_dt);
358 }
359 break;
360 }
362 nc->drag = TRUE;
363 ret = TRUE;
364 } else {
365 if (!nc->shape_editor->has_nodepath() || selection->singleItem() == NULL) {
366 break;
367 }
369 bool over_stroke = false;
370 over_stroke = nc->shape_editor->is_over_stroke(NR::Point(event->motion.x, event->motion.y), false);
372 if (nc->cursor_drag && !over_stroke) {
373 event_context->cursor_shape = cursor_node_xpm;
374 event_context->hot_x = 1;
375 event_context->hot_y = 1;
376 sp_event_context_update_cursor(event_context);
377 nc->cursor_drag = false;
378 } else if (!nc->cursor_drag && over_stroke) {
379 event_context->cursor_shape = cursor_node_d_xpm;
380 event_context->hot_x = 1;
381 event_context->hot_y = 1;
382 sp_event_context_update_cursor(event_context);
383 nc->cursor_drag = true;
384 }
385 }
386 break;
388 case GDK_2BUTTON_PRESS:
389 case GDK_BUTTON_RELEASE:
390 if ( (event->button.button == 1) && (!nc->drag) && !event_context->space_panning) {
391 // find out clicked item, disregarding groups, honoring Alt
392 SPItem *item_clicked = sp_event_context_find_item (desktop,
393 NR::Point(event->button.x, event->button.y),
394 (event->button.state & GDK_MOD1_MASK) && !(event->button.state & GDK_CONTROL_MASK), TRUE);
396 event_context->xp = event_context->yp = 0;
398 bool over_stroke = false;
399 if (nc->shape_editor->has_nodepath()) {
400 over_stroke = nc->shape_editor->is_over_stroke(NR::Point(event->button.x, event->button.y), false);
401 }
403 if (item_clicked || over_stroke) {
404 if (over_stroke || nc->added_node) {
405 switch (event->type) {
406 case GDK_BUTTON_RELEASE:
407 if (event->button.state & GDK_CONTROL_MASK && event->button.state & GDK_MOD1_MASK) {
408 //add a node
409 nc->shape_editor->add_node_near_point();
410 } else {
411 if (nc->added_node) { // we just received double click, ignore release
412 nc->added_node = false;
413 break;
414 }
415 //select the segment
416 if (event->button.state & GDK_SHIFT_MASK) {
417 nc->shape_editor->select_segment_near_point(true);
418 } else {
419 nc->shape_editor->select_segment_near_point(false);
420 }
421 desktop->updateNow();
422 }
423 break;
424 case GDK_2BUTTON_PRESS:
425 //add a node
426 nc->shape_editor->add_node_near_point();
427 nc->added_node = true;
428 break;
429 default:
430 break;
431 }
432 } else if (event->button.state & GDK_SHIFT_MASK) {
433 selection->toggle(item_clicked);
434 desktop->updateNow();
435 } else {
436 selection->set(item_clicked);
437 desktop->updateNow();
438 }
439 Inkscape::Rubberband::get(desktop)->stop();
440 ret = TRUE;
441 break;
442 }
443 }
444 if (event->type == GDK_BUTTON_RELEASE) {
445 event_context->xp = event_context->yp = 0;
446 if (event->button.button == 1) {
447 Geom::OptRect b = Inkscape::Rubberband::get(desktop)->getRectangle();
449 if (nc->shape_editor->hits_curve() && !event_context->within_tolerance) { //drag curve
450 nc->shape_editor->finish_drag();
451 } else if (b && !event_context->within_tolerance) { // drag to select
452 nc->shape_editor->select_rect(*b, event->button.state & GDK_SHIFT_MASK);
453 } else {
454 if (!(nc->rb_escaped)) { // unless something was cancelled
455 if (nc->shape_editor->has_selection())
456 nc->shape_editor->deselect();
457 else
458 sp_desktop_selection(desktop)->clear();
459 }
460 }
461 ret = TRUE;
462 Inkscape::Rubberband::get(desktop)->stop();
463 desktop->updateNow();
464 nc->rb_escaped = false;
465 nc->drag = FALSE;
466 nc->shape_editor->cancel_hit();
467 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
468 }
469 }
470 break;
471 case GDK_KEY_PRESS:
472 switch (get_group0_keyval(&event->key)) {
473 case GDK_Insert:
474 case GDK_KP_Insert:
475 // with any modifiers
476 nc->shape_editor->add_node();
477 ret = TRUE;
478 break;
479 case GDK_Delete:
480 case GDK_KP_Delete:
481 case GDK_BackSpace:
482 if (MOD__CTRL_ONLY) {
483 nc->shape_editor->delete_nodes();
484 } else {
485 nc->shape_editor->delete_nodes_preserving_shape();
486 }
487 ret = TRUE;
488 break;
489 case GDK_C:
490 case GDK_c:
491 if (MOD__SHIFT_ONLY) {
492 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_CUSP);
493 ret = TRUE;
494 }
495 break;
496 case GDK_S:
497 case GDK_s:
498 if (MOD__SHIFT_ONLY) {
499 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_SMOOTH);
500 ret = TRUE;
501 }
502 break;
503 case GDK_A:
504 case GDK_a:
505 if (MOD__SHIFT_ONLY) {
506 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_AUTO);
507 ret = TRUE;
508 }
509 break;
510 case GDK_Y:
511 case GDK_y:
512 if (MOD__SHIFT_ONLY) {
513 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_SYMM);
514 ret = TRUE;
515 }
516 break;
517 case GDK_B:
518 case GDK_b:
519 if (MOD__SHIFT_ONLY) {
520 nc->shape_editor->break_at_nodes();
521 ret = TRUE;
522 }
523 break;
524 case GDK_J:
525 case GDK_j:
526 if (MOD__SHIFT_ONLY) {
527 nc->shape_editor->join_nodes();
528 ret = TRUE;
529 }
530 break;
531 case GDK_D:
532 case GDK_d:
533 if (MOD__SHIFT_ONLY) {
534 nc->shape_editor->duplicate_nodes();
535 ret = TRUE;
536 }
537 break;
538 case GDK_L:
539 case GDK_l:
540 if (MOD__SHIFT_ONLY) {
541 nc->shape_editor->set_type_of_segments(NR_LINETO);
542 ret = TRUE;
543 }
544 break;
545 case GDK_U:
546 case GDK_u:
547 if (MOD__SHIFT_ONLY) {
548 nc->shape_editor->set_type_of_segments(NR_CURVETO);
549 ret = TRUE;
550 }
551 break;
552 case GDK_R:
553 case GDK_r:
554 if (MOD__SHIFT_ONLY) {
555 // FIXME: add top panel button
556 sp_selected_path_reverse(desktop);
557 ret = TRUE;
558 }
559 break;
560 case GDK_x:
561 case GDK_X:
562 if (MOD__ALT_ONLY) {
563 desktop->setToolboxFocusTo ("altx-nodes");
564 ret = TRUE;
565 }
566 break;
567 case GDK_Left: // move selection left
568 case GDK_KP_Left:
569 case GDK_KP_4:
570 if (!MOD__CTRL) { // not ctrl
571 gint mul = 1 + gobble_key_events(
572 get_group0_keyval(&event->key), 0); // with any mask
573 if (MOD__ALT) { // alt
574 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(desktop, mul*-10, 0); // shift
575 else nc->shape_editor->move_nodes_screen(desktop, mul*-1, 0); // no shift
576 }
577 else { // no alt
578 if (MOD__SHIFT) nc->shape_editor->move_nodes(mul*-10*nudge, 0); // shift
579 else nc->shape_editor->move_nodes(mul*-nudge, 0); // no shift
580 }
581 ret = TRUE;
582 }
583 break;
584 case GDK_Up: // move selection up
585 case GDK_KP_Up:
586 case GDK_KP_8:
587 if (!MOD__CTRL) { // not ctrl
588 gint mul = 1 + gobble_key_events(
589 get_group0_keyval(&event->key), 0); // with any mask
590 if (MOD__ALT) { // alt
591 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(desktop, 0, mul*10); // shift
592 else nc->shape_editor->move_nodes_screen(desktop, 0, mul*1); // no shift
593 }
594 else { // no alt
595 if (MOD__SHIFT) nc->shape_editor->move_nodes(0, mul*10*nudge); // shift
596 else nc->shape_editor->move_nodes(0, mul*nudge); // no shift
597 }
598 ret = TRUE;
599 }
600 break;
601 case GDK_Right: // move selection right
602 case GDK_KP_Right:
603 case GDK_KP_6:
604 if (!MOD__CTRL) { // not ctrl
605 gint mul = 1 + gobble_key_events(
606 get_group0_keyval(&event->key), 0); // with any mask
607 if (MOD__ALT) { // alt
608 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(desktop, mul*10, 0); // shift
609 else nc->shape_editor->move_nodes_screen(desktop, mul*1, 0); // no shift
610 }
611 else { // no alt
612 if (MOD__SHIFT) nc->shape_editor->move_nodes(mul*10*nudge, 0); // shift
613 else nc->shape_editor->move_nodes(mul*nudge, 0); // no shift
614 }
615 ret = TRUE;
616 }
617 break;
618 case GDK_Down: // move selection down
619 case GDK_KP_Down:
620 case GDK_KP_2:
621 if (!MOD__CTRL) { // not ctrl
622 gint mul = 1 + gobble_key_events(
623 get_group0_keyval(&event->key), 0); // with any mask
624 if (MOD__ALT) { // alt
625 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(desktop, 0, mul*-10); // shift
626 else nc->shape_editor->move_nodes_screen(desktop, 0, mul*-1); // no shift
627 }
628 else { // no alt
629 if (MOD__SHIFT) nc->shape_editor->move_nodes(0, mul*-10*nudge); // shift
630 else nc->shape_editor->move_nodes(0, mul*-nudge); // no shift
631 }
632 ret = TRUE;
633 }
634 break;
635 case GDK_Escape:
636 {
637 Geom::OptRect const b = Inkscape::Rubberband::get(desktop)->getRectangle();
638 if (b) {
639 Inkscape::Rubberband::get(desktop)->stop();
640 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
641 nc->rb_escaped = true;
642 } else {
643 if (nc->shape_editor->has_selection()) {
644 nc->shape_editor->deselect();
645 } else {
646 sp_desktop_selection(desktop)->clear();
647 }
648 }
649 ret = TRUE;
650 break;
651 }
653 case GDK_bracketleft:
654 if ( MOD__CTRL && !MOD__ALT && ( snaps != 0 ) ) {
655 if (nc->leftctrl)
656 nc->shape_editor->rotate_nodes (M_PI/snaps, -1, false);
657 if (nc->rightctrl)
658 nc->shape_editor->rotate_nodes (M_PI/snaps, 1, false);
659 } else if ( MOD__ALT && !MOD__CTRL ) {
660 if (nc->leftalt && nc->rightalt)
661 nc->shape_editor->rotate_nodes (1, 0, true);
662 else {
663 if (nc->leftalt)
664 nc->shape_editor->rotate_nodes (1, -1, true);
665 if (nc->rightalt)
666 nc->shape_editor->rotate_nodes (1, 1, true);
667 }
668 } else if ( snaps != 0 ) {
669 nc->shape_editor->rotate_nodes (M_PI/snaps, 0, false);
670 }
671 ret = TRUE;
672 break;
673 case GDK_bracketright:
674 if ( MOD__CTRL && !MOD__ALT && ( snaps != 0 ) ) {
675 if (nc->leftctrl)
676 nc->shape_editor->rotate_nodes (-M_PI/snaps, -1, false);
677 if (nc->rightctrl)
678 nc->shape_editor->rotate_nodes (-M_PI/snaps, 1, false);
679 } else if ( MOD__ALT && !MOD__CTRL ) {
680 if (nc->leftalt && nc->rightalt)
681 nc->shape_editor->rotate_nodes (-1, 0, true);
682 else {
683 if (nc->leftalt)
684 nc->shape_editor->rotate_nodes (-1, -1, true);
685 if (nc->rightalt)
686 nc->shape_editor->rotate_nodes (-1, 1, true);
687 }
688 } else if ( snaps != 0 ) {
689 nc->shape_editor->rotate_nodes (-M_PI/snaps, 0, false);
690 }
691 ret = TRUE;
692 break;
693 case GDK_less:
694 case GDK_comma:
695 if (MOD__CTRL) {
696 if (nc->leftctrl)
697 nc->shape_editor->scale_nodes(-offset, -1);
698 if (nc->rightctrl)
699 nc->shape_editor->scale_nodes(-offset, 1);
700 } else if (MOD__ALT) {
701 if (nc->leftalt && nc->rightalt)
702 nc->shape_editor->scale_nodes_screen (-1, 0);
703 else {
704 if (nc->leftalt)
705 nc->shape_editor->scale_nodes_screen (-1, -1);
706 if (nc->rightalt)
707 nc->shape_editor->scale_nodes_screen (-1, 1);
708 }
709 } else {
710 nc->shape_editor->scale_nodes (-offset, 0);
711 }
712 ret = TRUE;
713 break;
714 case GDK_greater:
715 case GDK_period:
716 if (MOD__CTRL) {
717 if (nc->leftctrl)
718 nc->shape_editor->scale_nodes (offset, -1);
719 if (nc->rightctrl)
720 nc->shape_editor->scale_nodes (offset, 1);
721 } else if (MOD__ALT) {
722 if (nc->leftalt && nc->rightalt)
723 nc->shape_editor->scale_nodes_screen (1, 0);
724 else {
725 if (nc->leftalt)
726 nc->shape_editor->scale_nodes_screen (1, -1);
727 if (nc->rightalt)
728 nc->shape_editor->scale_nodes_screen (1, 1);
729 }
730 } else {
731 nc->shape_editor->scale_nodes (offset, 0);
732 }
733 ret = TRUE;
734 break;
736 case GDK_Alt_L:
737 nc->leftalt = TRUE;
738 sp_node_context_show_modifier_tip(event_context, event);
739 break;
740 case GDK_Alt_R:
741 nc->rightalt = TRUE;
742 sp_node_context_show_modifier_tip(event_context, event);
743 break;
744 case GDK_Control_L:
745 nc->leftctrl = TRUE;
746 sp_node_context_show_modifier_tip(event_context, event);
747 break;
748 case GDK_Control_R:
749 nc->rightctrl = TRUE;
750 sp_node_context_show_modifier_tip(event_context, event);
751 break;
752 case GDK_Shift_L:
753 case GDK_Shift_R:
754 case GDK_Meta_L:
755 case GDK_Meta_R:
756 sp_node_context_show_modifier_tip(event_context, event);
757 break;
758 default:
759 ret = node_key(event);
760 break;
761 }
762 break;
763 case GDK_KEY_RELEASE:
764 switch (get_group0_keyval(&event->key)) {
765 case GDK_Alt_L:
766 nc->leftalt = FALSE;
767 event_context->defaultMessageContext()->clear();
768 break;
769 case GDK_Alt_R:
770 nc->rightalt = FALSE;
771 event_context->defaultMessageContext()->clear();
772 break;
773 case GDK_Control_L:
774 nc->leftctrl = FALSE;
775 event_context->defaultMessageContext()->clear();
776 break;
777 case GDK_Control_R:
778 nc->rightctrl = FALSE;
779 event_context->defaultMessageContext()->clear();
780 break;
781 case GDK_Shift_L:
782 case GDK_Shift_R:
783 case GDK_Meta_L:
784 case GDK_Meta_R:
785 event_context->defaultMessageContext()->clear();
786 break;
787 }
788 break;
789 default:
790 break;
791 }
793 if (!ret) {
794 if (((SPEventContextClass *) parent_class)->root_handler)
795 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
796 }
798 return ret;
799 }
802 /*
803 Local Variables:
804 mode:c++
805 c-file-style:"stroustrup"
806 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
807 indent-tabs-mode:nil
808 fill-column:99
809 End:
810 */
811 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :