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 "prefs-utils.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 // TODO: should this be here?
125 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
126 if (item && SP_IS_LPE_ITEM(item)) {
127 sp_lpe_item_remove_temporary_canvasitems(SP_LPE_ITEM(item), ec->desktop);
128 }
130 delete nc->shape_editor;
132 if (nc->_node_message_context) {
133 delete nc->_node_message_context;
134 }
136 G_OBJECT_CLASS(parent_class)->dispose(object);
137 }
139 static void
140 sp_node_context_setup(SPEventContext *ec)
141 {
142 SPNodeContext *nc = SP_NODE_CONTEXT(ec);
144 if (((SPEventContextClass *) parent_class)->setup)
145 ((SPEventContextClass *) parent_class)->setup(ec);
147 Inkscape::Selection *selection = sp_desktop_selection (ec->desktop);
148 nc->sel_changed_connection.disconnect();
149 nc->sel_changed_connection =
150 selection->connectChanged(sigc::bind(sigc::ptr_fun(&sp_node_context_selection_changed), (gpointer)nc));
152 SPItem *item = selection->singleItem();
154 nc->shape_editor = new ShapeEditor(ec->desktop);
156 nc->rb_escaped = false;
158 nc->cursor_drag = false;
160 nc->added_node = false;
162 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
164 if (item) {
165 nc->shape_editor->set_item(item);
166 }
168 if (prefs_get_int_attribute("tools.nodes", "selcue", 0) != 0) {
169 ec->enableSelectionCue();
170 }
172 if (prefs_get_int_attribute("tools.nodes", "gradientdrag", 0) != 0) {
173 ec->enableGrDrag();
174 }
176 ec->desktop->emitToolSubselectionChanged(NULL); // sets the coord entry fields to inactive
178 nc->_node_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
180 nc->shape_editor->update_statusbar();
181 }
183 static void
184 sp_node_context_flash_path(SPEventContext *event_context, SPItem *item, guint timeout) {
185 SPNodeContext *nc = SP_NODE_CONTEXT(event_context);
187 nc->remove_flash_counter = 3; // for some reason root_handler is called twice after each item_handler...
188 if (nc->flashed_item != item) {
189 // we entered a new item
190 nc->flashed_item = item;
191 SPDesktop *desktop = event_context->desktop;
192 if (nc->flash_tempitem) {
193 desktop->remove_temporary_canvasitem(nc->flash_tempitem);
194 nc->flash_tempitem = NULL;
195 }
197 if (SP_IS_PATH(item)) {
198 SPCanvasItem *canvasitem = sp_nodepath_generate_helperpath(desktop, SP_PATH(item));
199 nc->flash_tempitem = desktop->add_temporary_canvasitem (canvasitem, timeout);
200 }
201 }
202 }
204 /**
205 \brief Callback that processes the "changed" signal on the selection;
206 destroys old and creates new nodepath and reassigns listeners to the new selected item's repr
207 */
208 void
209 sp_node_context_selection_changed(Inkscape::Selection *selection, gpointer data)
210 {
211 SPNodeContext *nc = SP_NODE_CONTEXT(data);
213 // TODO: update ShapeEditorsCollective instead
214 nc->shape_editor->unset_item();
215 SPItem *item = selection->singleItem();
216 nc->shape_editor->set_item(item);
217 nc->shape_editor->update_statusbar();
218 }
220 void
221 sp_node_context_show_modifier_tip(SPEventContext *event_context, GdkEvent *event)
222 {
223 sp_event_show_modifier_tip
224 (event_context->defaultMessageContext(), event,
225 _("<b>Ctrl</b>: toggle node type, snap handle angle, move hor/vert; <b>Ctrl+Alt</b>: move along handles"),
226 _("<b>Shift</b>: toggle node selection, disable snapping, rotate both handles"),
227 _("<b>Alt</b>: lock handle length; <b>Ctrl+Alt</b>: move along handles"));
228 }
230 static gint
231 sp_node_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
232 {
233 gint ret = FALSE;
235 if (prefs_get_int_attribute ("tools.nodes", "pathflash_enabled", 0) == 1) {
236 guint timeout = prefs_get_int_attribute("tools.nodes", "pathflash_timeout", 500);
237 if (SP_IS_LPE_ITEM(item)) {
238 Inkscape::LivePathEffect::Effect *lpe = sp_lpe_item_get_current_lpe(SP_LPE_ITEM(item));
239 if (lpe && (lpe->providesOwnFlashPaths() ||
240 lpe->pathFlashType() == Inkscape::LivePathEffect::SUPPRESS_FLASH)) {
241 // path should be suppressed or permanent; this is handled in
242 // sp_node_context_selection_changed()
243 return ret;
244 }
245 }
246 sp_node_context_flash_path(event_context, item, timeout);
247 }
249 if (((SPEventContextClass *) parent_class)->item_handler)
250 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
252 return ret;
253 }
255 static gint
256 sp_node_context_root_handler(SPEventContext *event_context, GdkEvent *event)
257 {
258 SPDesktop *desktop = event_context->desktop;
259 Inkscape::Selection *selection = sp_desktop_selection (desktop);
261 SPNodeContext *nc = SP_NODE_CONTEXT(event_context);
262 double const nudge = prefs_get_double_attribute_limited("options.nudgedistance", "value", 2, 0, 1000); // in px
263 event_context->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100); // read every time, to make prefs changes really live
264 int const snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12);
265 double const offset = prefs_get_double_attribute_limited("options.defaultscale", "value", 2, 0, 1000);
267 if ( (nc->flash_tempitem) && (nc->remove_flash_counter <= 0) ) {
268 desktop->remove_temporary_canvasitem(nc->flash_tempitem);
269 nc->flash_tempitem = NULL;
270 nc->flashed_item = NULL; // also reset this one, so the next time the same object is hovered over it shows again the highlight
271 } else {
272 nc->remove_flash_counter--;
273 }
275 gint ret = FALSE;
276 switch (event->type) {
277 case GDK_BUTTON_PRESS:
278 if (event->button.button == 1 && !event_context->space_panning) {
279 // save drag origin
280 event_context->xp = (gint) event->button.x;
281 event_context->yp = (gint) event->button.y;
282 event_context->within_tolerance = true;
283 nc->shape_editor->cancel_hit();
285 if (!(event->button.state & GDK_SHIFT_MASK)) {
286 if (!nc->drag) {
287 if (nc->shape_editor->has_nodepath() && selection->single() /* && item_over */) {
288 // save drag origin
289 bool over_stroke = nc->shape_editor->is_over_stroke(NR::Point(event->button.x, event->button.y), true);
290 //only dragging curves
291 if (over_stroke) {
292 ret = TRUE;
293 break;
294 }
295 }
296 }
297 }
298 NR::Point const button_w(event->button.x,
299 event->button.y);
300 NR::Point const button_dt(desktop->w2d(button_w));
301 Inkscape::Rubberband::get()->start(desktop, button_dt);
302 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
303 desktop->updateNow();
304 ret = TRUE;
305 }
306 break;
307 case GDK_MOTION_NOTIFY:
308 if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
310 if ( event_context->within_tolerance
311 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
312 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
313 break; // do not drag if we're within tolerance from origin
314 }
316 // The path went away while dragging; throw away any further motion
317 // events until the mouse pointer is released.
319 if (nc->shape_editor->hits_curve() && !nc->shape_editor->has_nodepath()) {
320 break;
321 }
323 // Once the user has moved farther than tolerance from the original location
324 // (indicating they intend to move the object, not click), then always process the
325 // motion notify coordinates as given (no snapping back to origin)
326 event_context->within_tolerance = false;
328 // Once we determine what the user is doing (dragging either a node or the
329 // selection rubberband), make sure we continue to perform that operation
330 // until the mouse pointer is lifted.
331 if (nc->current_state == SP_NODE_CONTEXT_INACTIVE) {
332 if (nc->shape_editor->hits_curve() && nc->shape_editor->has_nodepath()) {
333 nc->current_state = SP_NODE_CONTEXT_NODE_DRAGGING;
334 } else {
335 nc->current_state = SP_NODE_CONTEXT_RUBBERBAND_DRAGGING;
336 }
337 }
339 switch (nc->current_state) {
340 case SP_NODE_CONTEXT_NODE_DRAGGING:
341 {
342 nc->shape_editor->curve_drag (event->motion.x, event->motion.y);
344 gobble_motion_events(GDK_BUTTON1_MASK);
345 break;
346 }
347 case SP_NODE_CONTEXT_RUBBERBAND_DRAGGING:
348 if (Inkscape::Rubberband::get()->is_started()) {
349 NR::Point const motion_w(event->motion.x,
350 event->motion.y);
351 NR::Point const motion_dt(desktop->w2d(motion_w));
352 Inkscape::Rubberband::get()->move(motion_dt);
353 }
354 break;
355 }
357 nc->drag = TRUE;
358 ret = TRUE;
359 } else {
360 if (!nc->shape_editor->has_nodepath() || selection->singleItem() == NULL) {
361 break;
362 }
364 bool over_stroke = false;
365 over_stroke = nc->shape_editor->is_over_stroke(NR::Point(event->motion.x, event->motion.y), false);
367 if (nc->cursor_drag && !over_stroke) {
368 event_context->cursor_shape = cursor_node_xpm;
369 event_context->hot_x = 1;
370 event_context->hot_y = 1;
371 sp_event_context_update_cursor(event_context);
372 nc->cursor_drag = false;
373 } else if (!nc->cursor_drag && over_stroke) {
374 event_context->cursor_shape = cursor_node_d_xpm;
375 event_context->hot_x = 1;
376 event_context->hot_y = 1;
377 sp_event_context_update_cursor(event_context);
378 nc->cursor_drag = true;
379 }
380 }
381 break;
383 case GDK_2BUTTON_PRESS:
384 case GDK_BUTTON_RELEASE:
385 if ( (event->button.button == 1) && (!nc->drag) && !event_context->space_panning) {
386 // find out clicked item, disregarding groups, honoring Alt
387 SPItem *item_clicked = sp_event_context_find_item (desktop,
388 NR::Point(event->button.x, event->button.y),
389 (event->button.state & GDK_MOD1_MASK) && !(event->button.state & GDK_CONTROL_MASK), TRUE);
391 event_context->xp = event_context->yp = 0;
393 bool over_stroke = false;
394 if (nc->shape_editor->has_nodepath()) {
395 over_stroke = nc->shape_editor->is_over_stroke(NR::Point(event->button.x, event->button.y), false);
396 }
398 if (item_clicked || over_stroke) {
399 if (over_stroke || nc->added_node) {
400 switch (event->type) {
401 case GDK_BUTTON_RELEASE:
402 if (event->button.state & GDK_CONTROL_MASK && event->button.state & GDK_MOD1_MASK) {
403 //add a node
404 nc->shape_editor->add_node_near_point();
405 } else {
406 if (nc->added_node) { // we just received double click, ignore release
407 nc->added_node = false;
408 break;
409 }
410 //select the segment
411 if (event->button.state & GDK_SHIFT_MASK) {
412 nc->shape_editor->select_segment_near_point(true);
413 } else {
414 nc->shape_editor->select_segment_near_point(false);
415 }
416 desktop->updateNow();
417 }
418 break;
419 case GDK_2BUTTON_PRESS:
420 //add a node
421 nc->shape_editor->add_node_near_point();
422 nc->added_node = true;
423 break;
424 default:
425 break;
426 }
427 } else if (event->button.state & GDK_SHIFT_MASK) {
428 selection->toggle(item_clicked);
429 desktop->updateNow();
430 } else {
431 selection->set(item_clicked);
432 desktop->updateNow();
433 }
434 Inkscape::Rubberband::get()->stop();
435 ret = TRUE;
436 break;
437 }
438 }
439 if (event->type == GDK_BUTTON_RELEASE) {
440 event_context->xp = event_context->yp = 0;
441 if (event->button.button == 1) {
442 NR::Maybe<NR::Rect> b = Inkscape::Rubberband::get()->getRectangle();
444 if (nc->shape_editor->hits_curve() && !event_context->within_tolerance) { //drag curve
445 nc->shape_editor->finish_drag();
446 } else if (b && !event_context->within_tolerance) { // drag to select
447 nc->shape_editor->select_rect(*b, event->button.state & GDK_SHIFT_MASK);
448 } else {
449 if (!(nc->rb_escaped)) { // unless something was cancelled
450 if (nc->shape_editor->has_selection())
451 nc->shape_editor->deselect();
452 else
453 sp_desktop_selection(desktop)->clear();
454 }
455 }
456 ret = TRUE;
457 Inkscape::Rubberband::get()->stop();
458 desktop->updateNow();
459 nc->rb_escaped = false;
460 nc->drag = FALSE;
461 nc->shape_editor->cancel_hit();
462 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
463 }
464 }
465 break;
466 case GDK_KEY_PRESS:
467 switch (get_group0_keyval(&event->key)) {
468 case GDK_Insert:
469 case GDK_KP_Insert:
470 // with any modifiers
471 nc->shape_editor->add_node();
472 ret = TRUE;
473 break;
474 case GDK_Delete:
475 case GDK_KP_Delete:
476 case GDK_BackSpace:
477 if (MOD__CTRL_ONLY) {
478 nc->shape_editor->delete_nodes();
479 } else {
480 nc->shape_editor->delete_nodes_preserving_shape();
481 }
482 ret = TRUE;
483 break;
484 case GDK_C:
485 case GDK_c:
486 if (MOD__SHIFT_ONLY) {
487 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_CUSP);
488 ret = TRUE;
489 }
490 break;
491 case GDK_S:
492 case GDK_s:
493 if (MOD__SHIFT_ONLY) {
494 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_SMOOTH);
495 ret = TRUE;
496 }
497 break;
498 case GDK_Y:
499 case GDK_y:
500 if (MOD__SHIFT_ONLY) {
501 nc->shape_editor->set_node_type(Inkscape::NodePath::NODE_SYMM);
502 ret = TRUE;
503 }
504 break;
505 case GDK_B:
506 case GDK_b:
507 if (MOD__SHIFT_ONLY) {
508 nc->shape_editor->break_at_nodes();
509 ret = TRUE;
510 }
511 break;
512 case GDK_J:
513 case GDK_j:
514 if (MOD__SHIFT_ONLY) {
515 nc->shape_editor->join_nodes();
516 ret = TRUE;
517 }
518 break;
519 case GDK_D:
520 case GDK_d:
521 if (MOD__SHIFT_ONLY) {
522 nc->shape_editor->duplicate_nodes();
523 ret = TRUE;
524 }
525 break;
526 case GDK_L:
527 case GDK_l:
528 if (MOD__SHIFT_ONLY) {
529 nc->shape_editor->set_type_of_segments(NR_LINETO);
530 ret = TRUE;
531 }
532 break;
533 case GDK_U:
534 case GDK_u:
535 if (MOD__SHIFT_ONLY) {
536 nc->shape_editor->set_type_of_segments(NR_CURVETO);
537 ret = TRUE;
538 }
539 break;
540 case GDK_R:
541 case GDK_r:
542 if (MOD__SHIFT_ONLY) {
543 // FIXME: add top panel button
544 sp_selected_path_reverse();
545 ret = TRUE;
546 }
547 break;
548 case GDK_x:
549 case GDK_X:
550 if (MOD__ALT_ONLY) {
551 desktop->setToolboxFocusTo ("altx-nodes");
552 ret = TRUE;
553 }
554 break;
555 case GDK_Left: // move selection left
556 case GDK_KP_Left:
557 case GDK_KP_4:
558 if (!MOD__CTRL) { // not ctrl
559 gint mul = 1 + gobble_key_events(
560 get_group0_keyval(&event->key), 0); // with any mask
561 if (MOD__ALT) { // alt
562 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(mul*-10, 0); // shift
563 else nc->shape_editor->move_nodes_screen(mul*-1, 0); // no shift
564 }
565 else { // no alt
566 if (MOD__SHIFT) nc->shape_editor->move_nodes(mul*-10*nudge, 0); // shift
567 else nc->shape_editor->move_nodes(mul*-nudge, 0); // no shift
568 }
569 ret = TRUE;
570 }
571 break;
572 case GDK_Up: // move selection up
573 case GDK_KP_Up:
574 case GDK_KP_8:
575 if (!MOD__CTRL) { // not ctrl
576 gint mul = 1 + gobble_key_events(
577 get_group0_keyval(&event->key), 0); // with any mask
578 if (MOD__ALT) { // alt
579 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(0, mul*10); // shift
580 else nc->shape_editor->move_nodes_screen(0, mul*1); // no shift
581 }
582 else { // no alt
583 if (MOD__SHIFT) nc->shape_editor->move_nodes(0, mul*10*nudge); // shift
584 else nc->shape_editor->move_nodes(0, mul*nudge); // no shift
585 }
586 ret = TRUE;
587 }
588 break;
589 case GDK_Right: // move selection right
590 case GDK_KP_Right:
591 case GDK_KP_6:
592 if (!MOD__CTRL) { // not ctrl
593 gint mul = 1 + gobble_key_events(
594 get_group0_keyval(&event->key), 0); // with any mask
595 if (MOD__ALT) { // alt
596 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(mul*10, 0); // shift
597 else nc->shape_editor->move_nodes_screen(mul*1, 0); // no shift
598 }
599 else { // no alt
600 if (MOD__SHIFT) nc->shape_editor->move_nodes(mul*10*nudge, 0); // shift
601 else nc->shape_editor->move_nodes(mul*nudge, 0); // no shift
602 }
603 ret = TRUE;
604 }
605 break;
606 case GDK_Down: // move selection down
607 case GDK_KP_Down:
608 case GDK_KP_2:
609 if (!MOD__CTRL) { // not ctrl
610 gint mul = 1 + gobble_key_events(
611 get_group0_keyval(&event->key), 0); // with any mask
612 if (MOD__ALT) { // alt
613 if (MOD__SHIFT) nc->shape_editor->move_nodes_screen(0, mul*-10); // shift
614 else nc->shape_editor->move_nodes_screen(0, mul*-1); // no shift
615 }
616 else { // no alt
617 if (MOD__SHIFT) nc->shape_editor->move_nodes(0, mul*-10*nudge); // shift
618 else nc->shape_editor->move_nodes(0, mul*-nudge); // no shift
619 }
620 ret = TRUE;
621 }
622 break;
623 case GDK_Escape:
624 {
625 NR::Maybe<NR::Rect> const b = Inkscape::Rubberband::get()->getRectangle();
626 if (b) {
627 Inkscape::Rubberband::get()->stop();
628 nc->current_state = SP_NODE_CONTEXT_INACTIVE;
629 nc->rb_escaped = true;
630 } else {
631 if (nc->shape_editor->has_selection()) {
632 nc->shape_editor->deselect();
633 } else {
634 sp_desktop_selection(desktop)->clear();
635 }
636 }
637 ret = TRUE;
638 break;
639 }
641 case GDK_bracketleft:
642 if ( MOD__CTRL && !MOD__ALT && ( snaps != 0 ) ) {
643 if (nc->leftctrl)
644 nc->shape_editor->rotate_nodes (M_PI/snaps, -1, false);
645 if (nc->rightctrl)
646 nc->shape_editor->rotate_nodes (M_PI/snaps, 1, false);
647 } else if ( MOD__ALT && !MOD__CTRL ) {
648 if (nc->leftalt && nc->rightalt)
649 nc->shape_editor->rotate_nodes (1, 0, true);
650 else {
651 if (nc->leftalt)
652 nc->shape_editor->rotate_nodes (1, -1, true);
653 if (nc->rightalt)
654 nc->shape_editor->rotate_nodes (1, 1, true);
655 }
656 } else if ( snaps != 0 ) {
657 nc->shape_editor->rotate_nodes (M_PI/snaps, 0, false);
658 }
659 ret = TRUE;
660 break;
661 case GDK_bracketright:
662 if ( MOD__CTRL && !MOD__ALT && ( snaps != 0 ) ) {
663 if (nc->leftctrl)
664 nc->shape_editor->rotate_nodes (-M_PI/snaps, -1, false);
665 if (nc->rightctrl)
666 nc->shape_editor->rotate_nodes (-M_PI/snaps, 1, false);
667 } else if ( MOD__ALT && !MOD__CTRL ) {
668 if (nc->leftalt && nc->rightalt)
669 nc->shape_editor->rotate_nodes (-1, 0, true);
670 else {
671 if (nc->leftalt)
672 nc->shape_editor->rotate_nodes (-1, -1, true);
673 if (nc->rightalt)
674 nc->shape_editor->rotate_nodes (-1, 1, true);
675 }
676 } else if ( snaps != 0 ) {
677 nc->shape_editor->rotate_nodes (-M_PI/snaps, 0, false);
678 }
679 ret = TRUE;
680 break;
681 case GDK_less:
682 case GDK_comma:
683 if (MOD__CTRL) {
684 if (nc->leftctrl)
685 nc->shape_editor->scale_nodes(-offset, -1);
686 if (nc->rightctrl)
687 nc->shape_editor->scale_nodes(-offset, 1);
688 } else if (MOD__ALT) {
689 if (nc->leftalt && nc->rightalt)
690 nc->shape_editor->scale_nodes_screen (-1, 0);
691 else {
692 if (nc->leftalt)
693 nc->shape_editor->scale_nodes_screen (-1, -1);
694 if (nc->rightalt)
695 nc->shape_editor->scale_nodes_screen (-1, 1);
696 }
697 } else {
698 nc->shape_editor->scale_nodes (-offset, 0);
699 }
700 ret = TRUE;
701 break;
702 case GDK_greater:
703 case GDK_period:
704 if (MOD__CTRL) {
705 if (nc->leftctrl)
706 nc->shape_editor->scale_nodes (offset, -1);
707 if (nc->rightctrl)
708 nc->shape_editor->scale_nodes (offset, 1);
709 } else if (MOD__ALT) {
710 if (nc->leftalt && nc->rightalt)
711 nc->shape_editor->scale_nodes_screen (1, 0);
712 else {
713 if (nc->leftalt)
714 nc->shape_editor->scale_nodes_screen (1, -1);
715 if (nc->rightalt)
716 nc->shape_editor->scale_nodes_screen (1, 1);
717 }
718 } else {
719 nc->shape_editor->scale_nodes (offset, 0);
720 }
721 ret = TRUE;
722 break;
724 case GDK_Alt_L:
725 nc->leftalt = TRUE;
726 sp_node_context_show_modifier_tip(event_context, event);
727 break;
728 case GDK_Alt_R:
729 nc->rightalt = TRUE;
730 sp_node_context_show_modifier_tip(event_context, event);
731 break;
732 case GDK_Control_L:
733 nc->leftctrl = TRUE;
734 sp_node_context_show_modifier_tip(event_context, event);
735 break;
736 case GDK_Control_R:
737 nc->rightctrl = TRUE;
738 sp_node_context_show_modifier_tip(event_context, event);
739 break;
740 case GDK_Shift_L:
741 case GDK_Shift_R:
742 case GDK_Meta_L:
743 case GDK_Meta_R:
744 sp_node_context_show_modifier_tip(event_context, event);
745 break;
746 default:
747 ret = node_key(event);
748 break;
749 }
750 break;
751 case GDK_KEY_RELEASE:
752 switch (get_group0_keyval(&event->key)) {
753 case GDK_Alt_L:
754 nc->leftalt = FALSE;
755 event_context->defaultMessageContext()->clear();
756 break;
757 case GDK_Alt_R:
758 nc->rightalt = FALSE;
759 event_context->defaultMessageContext()->clear();
760 break;
761 case GDK_Control_L:
762 nc->leftctrl = FALSE;
763 event_context->defaultMessageContext()->clear();
764 break;
765 case GDK_Control_R:
766 nc->rightctrl = FALSE;
767 event_context->defaultMessageContext()->clear();
768 break;
769 case GDK_Shift_L:
770 case GDK_Shift_R:
771 case GDK_Meta_L:
772 case GDK_Meta_R:
773 event_context->defaultMessageContext()->clear();
774 break;
775 }
776 break;
777 default:
778 break;
779 }
781 if (!ret) {
782 if (((SPEventContextClass *) parent_class)->root_handler)
783 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
784 }
786 return ret;
787 }
790 /*
791 Local Variables:
792 mode:c++
793 c-file-style:"stroustrup"
794 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
795 indent-tabs-mode:nil
796 fill-column:99
797 End:
798 */
799 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :