1 #define __SP_SELECT_CONTEXT_C__
3 /*
4 * Selection and transformation context
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
11 * Copyright (C) 1999-2005 Authors
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
19 #include <cstring>
20 #include <string>
21 #include <gdk/gdkkeysyms.h>
22 #include "macros.h"
23 #include "rubberband.h"
24 #include "document.h"
25 #include "selection.h"
26 #include "seltrans-handles.h"
27 #include "sp-cursor.h"
28 #include "pixmaps/cursor-select-m.xpm"
29 #include "pixmaps/cursor-select-d.xpm"
30 #include "pixmaps/handles.xpm"
31 #include <glibmm/i18n.h>
33 #include "select-context.h"
34 #include "selection-chemistry.h"
35 #include "desktop.h"
36 #include "desktop-handles.h"
37 #include "sp-root.h"
38 #include "prefs-utils.h"
39 #include "tools-switch.h"
40 #include "message-stack.h"
41 #include "selection-describer.h"
42 #include "seltrans.h"
43 #include "box3d.h"
45 static void sp_select_context_class_init(SPSelectContextClass *klass);
46 static void sp_select_context_init(SPSelectContext *select_context);
47 static void sp_select_context_dispose(GObject *object);
49 static void sp_select_context_setup(SPEventContext *ec);
50 static void sp_select_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
51 static gint sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event);
52 static gint sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
54 static SPEventContextClass *parent_class;
56 static GdkCursor *CursorSelectMouseover = NULL;
57 static GdkCursor *CursorSelectDragging = NULL;
58 GdkPixbuf *handles[13];
60 static gint rb_escaped = 0; // if non-zero, rubberband was canceled by esc, so the next button release should not deselect
61 static gint drag_escaped = 0; // if non-zero, drag was canceled by esc
63 static gint xp = 0, yp = 0; // where drag started
64 static gint tolerance = 0;
65 static bool within_tolerance = false;
67 GtkType
68 sp_select_context_get_type(void)
69 {
70 static GType type = 0;
71 if (!type) {
72 GTypeInfo info = {
73 sizeof(SPSelectContextClass),
74 NULL, NULL,
75 (GClassInitFunc) sp_select_context_class_init,
76 NULL, NULL,
77 sizeof(SPSelectContext),
78 4,
79 (GInstanceInitFunc) sp_select_context_init,
80 NULL, /* value_table */
81 };
82 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSelectContext", &info, (GTypeFlags)0);
83 }
84 return type;
85 }
87 static void
88 sp_select_context_class_init(SPSelectContextClass *klass)
89 {
90 GObjectClass *object_class = (GObjectClass *) klass;
91 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
93 parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
95 object_class->dispose = sp_select_context_dispose;
97 event_context_class->setup = sp_select_context_setup;
98 event_context_class->set = sp_select_context_set;
99 event_context_class->root_handler = sp_select_context_root_handler;
100 event_context_class->item_handler = sp_select_context_item_handler;
102 // cursors in select context
103 CursorSelectMouseover = sp_cursor_new_from_xpm(cursor_select_m_xpm , 1, 1);
104 CursorSelectDragging = sp_cursor_new_from_xpm(cursor_select_d_xpm , 1, 1);
105 // selection handles
106 handles[0] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_nw_xpm);
107 handles[1] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_ne_xpm);
108 handles[2] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_h_xpm);
109 handles[3] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_v_xpm);
110 handles[4] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_nw_xpm);
111 handles[5] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_n_xpm);
112 handles[6] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_ne_xpm);
113 handles[7] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_e_xpm);
114 handles[8] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_se_xpm);
115 handles[9] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_s_xpm);
116 handles[10] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_sw_xpm);
117 handles[11] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_w_xpm);
118 handles[12] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_center_xpm);
120 }
122 static void
123 sp_select_context_init(SPSelectContext *sc)
124 {
125 sc->dragging = FALSE;
126 sc->moved = FALSE;
127 sc->button_press_shift = false;
128 sc->button_press_ctrl = false;
129 sc->button_press_alt = false;
130 sc->_seltrans = NULL;
131 sc->_describer = NULL;
132 }
134 static void
135 sp_select_context_dispose(GObject *object)
136 {
137 SPSelectContext *sc = SP_SELECT_CONTEXT(object);
138 SPEventContext * ec = SP_EVENT_CONTEXT (object);
140 ec->enableGrDrag(false);
142 if (sc->grabbed) {
143 sp_canvas_item_ungrab(sc->grabbed, GDK_CURRENT_TIME);
144 sc->grabbed = NULL;
145 }
147 delete sc->_seltrans;
148 sc->_seltrans = NULL;
149 delete sc->_describer;
150 sc->_describer = NULL;
152 if (CursorSelectDragging) {
153 gdk_cursor_unref (CursorSelectDragging);
154 CursorSelectDragging = NULL;
155 }
156 if (CursorSelectMouseover) {
157 gdk_cursor_unref (CursorSelectMouseover);
158 CursorSelectMouseover = NULL;
159 }
161 G_OBJECT_CLASS(parent_class)->dispose(object);
162 }
164 static void
165 sp_select_context_setup(SPEventContext *ec)
166 {
167 SPSelectContext *select_context = SP_SELECT_CONTEXT(ec);
169 if (((SPEventContextClass *) parent_class)->setup) {
170 ((SPEventContextClass *) parent_class)->setup(ec);
171 }
173 SPDesktop *desktop = ec->desktop;
175 select_context->_describer = new Inkscape::SelectionDescriber(desktop->selection, desktop->messageStack());
177 select_context->_seltrans = new Inkscape::SelTrans(desktop);
179 sp_event_context_read(ec, "show");
180 sp_event_context_read(ec, "transform");
182 if (prefs_get_int_attribute("tools.select", "gradientdrag", 0) != 0) {
183 ec->enableGrDrag();
184 }
185 }
187 static void
188 sp_select_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
189 {
190 SPSelectContext *sc = SP_SELECT_CONTEXT(ec);
192 if (!strcmp(key, "show")) {
193 if (val && !strcmp(val, "outline")) {
194 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);
195 } else {
196 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);
197 }
198 }
199 }
201 static bool
202 sp_select_context_abort(SPEventContext *event_context)
203 {
204 SPDesktop *desktop = event_context->desktop;
205 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
206 Inkscape::SelTrans *seltrans = sc->_seltrans;
208 if (sc->dragging) {
209 if (sc->moved) { // cancel dragging an object
210 seltrans->ungrab();
211 sc->moved = FALSE;
212 sc->dragging = FALSE;
213 drag_escaped = 1;
215 if (sc->item) {
216 // only undo if the item is still valid
217 if (SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))) {
218 sp_document_undo(sp_desktop_document(desktop));
219 }
221 sp_object_unref( SP_OBJECT(sc->item), NULL);
222 } else if (sc->button_press_ctrl) {
223 // NOTE: This is a workaround to a bug.
224 // When the ctrl key is held, sc->item is not defined
225 // so in this case (only), we skip the object doc check
226 sp_document_undo(sp_desktop_document(desktop));
227 }
228 sc->item = NULL;
230 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));
231 return true;
232 }
233 } else {
234 if (Inkscape::Rubberband::get()->is_started()) {
235 Inkscape::Rubberband::get()->stop();
236 rb_escaped = 1;
237 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
238 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));
239 return true;
240 }
241 }
242 return false;
243 }
245 bool
246 key_is_a_modifier (guint key) {
247 return (key == GDK_Alt_L ||
248 key == GDK_Alt_R ||
249 key == GDK_Control_L ||
250 key == GDK_Control_R ||
251 key == GDK_Shift_L ||
252 key == GDK_Shift_R ||
253 key == GDK_Meta_L || // Meta is when you press Shift+Alt (at least on my machine)
254 key == GDK_Meta_R);
255 }
257 void
258 sp_select_context_up_one_layer(SPDesktop *desktop)
259 {
260 /* Click in empty place, go up one level -- but don't leave a layer to root.
261 *
262 * (Rationale: we don't usually allow users to go to the root, since that
263 * detracts from the layer metaphor: objects at the root level can in front
264 * of or behind layers. Whereas it's fine to go to the root if editing
265 * a document that has no layers (e.g. a non-Inkscape document).)
266 *
267 * Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml
268 * document), we might consider further restricting the below to disallow
269 * leaving a layer to go to a non-layer.
270 */
271 SPObject *const current_layer = desktop->currentLayer();
272 if (current_layer) {
273 SPObject *const parent = SP_OBJECT_PARENT(current_layer);
274 if ( parent
275 && ( SP_OBJECT_PARENT(parent)
276 || !( SP_IS_GROUP(current_layer)
277 && ( SPGroup::LAYER
278 == SP_GROUP(current_layer)->layerMode() ) ) ) )
279 {
280 desktop->setCurrentLayer(parent);
281 if (SP_IS_GROUP(current_layer) && SPGroup::LAYER != SP_GROUP(current_layer)->layerMode())
282 sp_desktop_selection(desktop)->set(current_layer);
283 }
284 }
285 }
287 static gint
288 sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
289 {
290 gint ret = FALSE;
292 SPDesktop *desktop = event_context->desktop;
293 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
294 Inkscape::SelTrans *seltrans = sc->_seltrans;
296 tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
298 // make sure we still have valid objects to move around
299 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
300 sp_select_context_abort(event_context);
301 }
303 switch (event->type) {
304 case GDK_BUTTON_PRESS:
305 if (event->button.button == 1 && !event_context->space_panning) {
306 /* Left mousebutton */
308 // save drag origin
309 xp = (gint) event->button.x;
310 yp = (gint) event->button.y;
311 within_tolerance = true;
313 // remember what modifiers were on before button press
314 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
315 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
316 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
318 if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {
319 // if shift or ctrl was pressed, do not move objects;
320 // pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
321 } else {
322 sc->dragging = TRUE;
323 sc->moved = FALSE;
325 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
327 // remember the clicked item in sc->item:
328 if (sc->item) {
329 sp_object_unref(sc->item, NULL);
330 sc->item = NULL;
331 }
332 sc->item = sp_event_context_find_item (desktop,
333 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
334 sp_object_ref(sc->item, NULL);
336 rb_escaped = drag_escaped = 0;
338 if (sc->grabbed) {
339 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
340 sc->grabbed = NULL;
341 }
342 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
343 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
344 GDK_POINTER_MOTION_MASK,
345 NULL, event->button.time);
346 sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);
348 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
350 ret = TRUE;
351 }
352 } else if (event->button.button == 3) {
353 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
354 sp_select_context_abort(event_context);
355 }
356 break;
358 case GDK_ENTER_NOTIFY:
359 {
360 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
361 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
362 gdk_cursor_destroy(cursor);
363 break;
364 }
366 case GDK_LEAVE_NOTIFY:
367 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
368 break;
370 case GDK_KEY_PRESS:
371 if (get_group0_keyval (&event->key) == GDK_space) {
372 if (sc->dragging && sc->grabbed) {
373 /* stamping mode: show content mode moving */
374 seltrans->stamp();
375 ret = TRUE;
376 }
377 }
378 break;
380 default:
381 break;
382 }
384 if (!ret) {
385 if (((SPEventContextClass *) parent_class)->item_handler)
386 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
387 }
389 return ret;
390 }
392 static gint
393 sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)
394 {
395 SPItem *item = NULL;
396 SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
397 gint ret = FALSE;
399 SPDesktop *desktop = event_context->desktop;
400 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
401 Inkscape::SelTrans *seltrans = sc->_seltrans;
402 Inkscape::Selection *selection = sp_desktop_selection(desktop);
403 gdouble const nudge = prefs_get_double_attribute_limited("options.nudgedistance", "value", 2, 0, 1000); // in px
404 gdouble const offset = prefs_get_double_attribute_limited("options.defaultscale", "value", 2, 0, 1000);
405 tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
406 int const snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12);
408 // make sure we still have valid objects to move around
409 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
410 sp_select_context_abort(event_context);
411 }
413 switch (event->type) {
414 case GDK_2BUTTON_PRESS:
415 if (event->button.button == 1) {
416 if (!selection->isEmpty()) {
417 SPItem *clicked_item = (SPItem *) selection->itemList()->data;
418 if (SP_IS_GROUP(clicked_item) && !SP_IS_BOX3D(clicked_item)) { // enter group if it's not a 3D box
419 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
420 sp_desktop_selection(desktop)->clear();
421 sc->dragging = false;
423 sp_canvas_end_forced_full_redraws(desktop->canvas);
424 } else { // switch tool
425 tools_switch_by_item (desktop, clicked_item);
426 }
427 } else {
428 sp_select_context_up_one_layer(desktop);
429 }
430 ret = TRUE;
431 }
432 break;
433 case GDK_BUTTON_PRESS:
434 if (event->button.button == 1 && !event_context->space_panning) {
436 // save drag origin
437 xp = (gint) event->button.x;
438 yp = (gint) event->button.y;
439 within_tolerance = true;
441 NR::Point const button_pt(event->button.x, event->button.y);
442 NR::Point const p(desktop->w2d(button_pt));
443 if (event->button.state & GDK_MOD1_MASK)
444 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
445 Inkscape::Rubberband::get()->start(desktop, p);
446 if (sc->grabbed) {
447 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
448 sc->grabbed = NULL;
449 }
450 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
451 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK,
452 NULL, event->button.time);
453 sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
455 // remember what modifiers were on before button press
456 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
457 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
458 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
460 sc->moved = FALSE;
462 rb_escaped = drag_escaped = 0;
464 ret = TRUE;
465 } else if (event->button.button == 3) {
466 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
467 sp_select_context_abort(event_context);
468 }
469 break;
471 case GDK_MOTION_NOTIFY:
472 if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
473 NR::Point const motion_pt(event->motion.x, event->motion.y);
474 NR::Point const p(desktop->w2d(motion_pt));
476 if ( within_tolerance
477 && ( abs( (gint) event->motion.x - xp ) < tolerance )
478 && ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {
479 break; // do not drag if we're within tolerance from origin
480 }
481 // Once the user has moved farther than tolerance from the original location
482 // (indicating they intend to move the object, not click), then always process the
483 // motion notify coordinates as given (no snapping back to origin)
484 within_tolerance = false;
486 if (sc->button_press_ctrl || (sc->button_press_alt && !sc->button_press_shift && !selection->isEmpty())) {
487 // if it's not click and ctrl or alt was pressed (the latter with some selection
488 // but not with shift) we want to drag rather than rubberband
489 sc->dragging = TRUE;
491 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
492 }
494 if (sc->dragging) {
495 /* User has dragged fast, so we get events on root (lauris)*/
496 // not only that; we will end up here when ctrl-dragging as well
497 // and also when we started within tolerance, but trespassed tolerance outside of item
498 Inkscape::Rubberband::get()->stop();
499 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
500 item_at_point = desktop->item_at_point(NR::Point(event->button.x, event->button.y), FALSE);
501 if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)
502 item_at_point = desktop->item_at_point(NR::Point(xp, yp), FALSE);
503 if (item_at_point || sc->moved || sc->button_press_alt) {
504 // drag only if starting from an item, or if something is already grabbed, or if alt-dragging
505 if (!sc->moved) {
506 item_in_group = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
507 group_at_point = desktop->group_at_point(NR::Point(event->button.x, event->button.y));
508 // if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
509 if ((!item_in_group || !selection->includes(item_in_group)) &&
510 (!group_at_point || !selection->includes(group_at_point))
511 && !sc->button_press_alt) {
512 // select what is under cursor
513 if (!seltrans->isEmpty()) {
514 seltrans->resetState();
515 }
516 // when simply ctrl-dragging, we don't want to go into groups
517 if (item_at_point && !selection->includes(item_at_point))
518 selection->set(item_at_point);
519 } // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
520 seltrans->grab(p, -1, -1, FALSE);
521 sc->moved = TRUE;
522 }
523 if (!seltrans->isEmpty())
524 seltrans->moveTo(p, event->button.state);
525 desktop->scroll_to_point(&p);
526 gobble_motion_events(GDK_BUTTON1_MASK);
527 ret = TRUE;
528 } else {
529 sc->dragging = FALSE;
531 sp_canvas_end_forced_full_redraws(desktop->canvas);
532 }
533 } else {
534 if (Inkscape::Rubberband::get()->is_started()) {
535 Inkscape::Rubberband::get()->move(p);
536 if (Inkscape::Rubberband::get()->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
537 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));
538 } else {
539 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));
540 }
541 gobble_motion_events(GDK_BUTTON1_MASK);
542 }
543 }
544 }
545 break;
546 case GDK_BUTTON_RELEASE:
547 xp = yp = 0;
548 if ((event->button.button == 1) && (sc->grabbed) && !event_context->space_panning) {
549 if (sc->dragging) {
550 if (sc->moved) {
551 // item has been moved
552 seltrans->ungrab();
553 sc->moved = FALSE;
554 } else if (sc->item && !drag_escaped) {
555 // item has not been moved -> simply a click, do selecting
556 if (!selection->isEmpty()) {
557 if (event->button.state & GDK_SHIFT_MASK) {
558 // with shift, toggle selection
559 seltrans->resetState();
560 selection->toggle(sc->item);
561 } else {
562 // without shift, increase state (i.e. toggle scale/rotation handles)
563 if (selection->includes(sc->item)) {
564 seltrans->increaseState();
565 } else {
566 seltrans->resetState();
567 selection->set(sc->item);
568 }
569 }
570 } else { // simple or shift click, no previous selection
571 seltrans->resetState();
572 selection->set(sc->item);
573 }
574 }
575 sc->dragging = FALSE;
577 sp_canvas_end_forced_full_redraws(desktop->canvas);
579 if (sc->item) {
580 sp_object_unref( SP_OBJECT(sc->item), NULL);
581 }
582 sc->item = NULL;
583 } else {
584 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
585 if (r->is_started() && !within_tolerance) {
586 // this was a rubberband drag
587 GSList *items = NULL;
588 if (r->getMode() == RUBBERBAND_MODE_RECT) {
589 NR::Maybe<NR::Rect> const b = r->getRectangle();
590 items = sp_document_items_in_box(sp_desktop_document(desktop), desktop->dkey, *b);
591 } else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
592 items = sp_document_items_at_points(sp_desktop_document(desktop), desktop->dkey, r->getPoints());
593 }
595 seltrans->resetState();
596 r->stop();
597 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
599 if (event->button.state & GDK_SHIFT_MASK) {
600 // with shift, add to selection
601 selection->addList (items);
602 } else {
603 // without shift, simply select anew
604 selection->setList (items);
605 }
606 g_slist_free (items);
607 } else { // it was just a click, or a too small rubberband
608 r->stop();
609 if (sc->button_press_shift && !rb_escaped && !drag_escaped) {
610 // this was a shift+click or alt+shift+click, select what was clicked upon
612 sc->button_press_shift = false;
614 if (sc->button_press_ctrl) {
615 // go into groups, honoring Alt
616 item = sp_event_context_find_item (desktop,
617 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
618 sc->button_press_ctrl = FALSE;
619 } else {
620 // don't go into groups, honoring Alt
621 item = sp_event_context_find_item (desktop,
622 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
623 }
625 if (item) {
626 selection->toggle(item);
627 item = NULL;
628 }
630 } else if ((sc->button_press_ctrl || sc->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click
632 item = sp_event_context_find_item (desktop,
633 NR::Point(event->button.x, event->button.y), sc->button_press_alt, sc->button_press_ctrl);
635 sc->button_press_ctrl = FALSE;
636 sc->button_press_alt = FALSE;
638 if (item) {
639 if (selection->includes(item)) {
640 seltrans->increaseState();
641 } else {
642 seltrans->resetState();
643 selection->set(item);
644 }
645 item = NULL;
646 }
648 } else { // click without shift, simply deselect, unless with Alt or something was cancelled
649 if (!selection->isEmpty()) {
650 if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))
651 selection->clear();
652 rb_escaped = 0;
653 ret = TRUE;
654 }
655 }
656 }
657 ret = TRUE;
658 }
659 if (sc->grabbed) {
660 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
661 sc->grabbed = NULL;
662 }
664 desktop->updateNow();
665 }
666 if (event->button.button == 1) {
667 Inkscape::Rubberband::get()->stop(); // might have been started in another tool!
668 }
669 sc->button_press_shift = false;
670 sc->button_press_ctrl = false;
671 sc->button_press_alt = false;
672 break;
674 case GDK_KEY_PRESS: // keybindings for select context
676 {
677 guint keyval = get_group0_keyval(&event->key);
678 bool alt = ( MOD__ALT
679 || (keyval == GDK_Alt_L)
680 || (keyval == GDK_Alt_R)
681 || (keyval == GDK_Meta_L)
682 || (keyval == GDK_Meta_R));
684 if (!key_is_a_modifier (keyval)) {
685 event_context->defaultMessageContext()->clear();
686 } else if (sc->grabbed || seltrans->isGrabbed()) {
687 if (Inkscape::Rubberband::get()->is_started()) {
688 // if Alt then change cursor to moving cursor:
689 if (alt) {
690 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
691 }
692 } else {
693 // do not change the statusbar text when mousekey is down to move or transform the object,
694 // because the statusbar text is already updated somewhere else.
695 break;
696 }
697 } else {
698 sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
699 _("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),
700 _("<b>Shift</b>: click to toggle select; drag for rubberband selection"),
701 _("<b>Alt</b>: click to select under; drag to move selected or select by touch"));
702 // if Alt and nonempty selection, show moving cursor ("move selected"):
703 if (alt && !selection->isEmpty()) {
704 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
705 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
706 gdk_cursor_destroy(cursor);
707 }
708 //*/
709 break;
710 }
711 }
713 switch (get_group0_keyval (&event->key)) {
714 case GDK_Left: // move selection left
715 case GDK_KP_Left:
716 case GDK_KP_4:
717 if (!MOD__CTRL) { // not ctrl
718 gint mul = 1 + gobble_key_events(
719 get_group0_keyval(&event->key), 0); // with any mask
720 if (MOD__ALT) { // alt
721 if (MOD__SHIFT) sp_selection_move_screen(mul*-10, 0); // shift
722 else sp_selection_move_screen(mul*-1, 0); // no shift
723 }
724 else { // no alt
725 if (MOD__SHIFT) sp_selection_move(mul*-10*nudge, 0); // shift
726 else sp_selection_move(mul*-nudge, 0); // no shift
727 }
728 ret = TRUE;
729 }
730 break;
731 case GDK_Up: // move selection up
732 case GDK_KP_Up:
733 case GDK_KP_8:
734 if (!MOD__CTRL) { // not ctrl
735 gint mul = 1 + gobble_key_events(
736 get_group0_keyval(&event->key), 0); // with any mask
737 if (MOD__ALT) { // alt
738 if (MOD__SHIFT) sp_selection_move_screen(0, mul*10); // shift
739 else sp_selection_move_screen(0, mul*1); // no shift
740 }
741 else { // no alt
742 if (MOD__SHIFT) sp_selection_move(0, mul*10*nudge); // shift
743 else sp_selection_move(0, mul*nudge); // no shift
744 }
745 ret = TRUE;
746 }
747 break;
748 case GDK_Right: // move selection right
749 case GDK_KP_Right:
750 case GDK_KP_6:
751 if (!MOD__CTRL) { // not ctrl
752 gint mul = 1 + gobble_key_events(
753 get_group0_keyval(&event->key), 0); // with any mask
754 if (MOD__ALT) { // alt
755 if (MOD__SHIFT) sp_selection_move_screen(mul*10, 0); // shift
756 else sp_selection_move_screen(mul*1, 0); // no shift
757 }
758 else { // no alt
759 if (MOD__SHIFT) sp_selection_move(mul*10*nudge, 0); // shift
760 else sp_selection_move(mul*nudge, 0); // no shift
761 }
762 ret = TRUE;
763 }
764 break;
765 case GDK_Down: // move selection down
766 case GDK_KP_Down:
767 case GDK_KP_2:
768 if (!MOD__CTRL) { // not ctrl
769 gint mul = 1 + gobble_key_events(
770 get_group0_keyval(&event->key), 0); // with any mask
771 if (MOD__ALT) { // alt
772 if (MOD__SHIFT) sp_selection_move_screen(0, mul*-10); // shift
773 else sp_selection_move_screen(0, mul*-1); // no shift
774 }
775 else { // no alt
776 if (MOD__SHIFT) sp_selection_move(0, mul*-10*nudge); // shift
777 else sp_selection_move(0, mul*-nudge); // no shift
778 }
779 ret = TRUE;
780 }
781 break;
782 case GDK_Escape:
783 if (!sp_select_context_abort(event_context))
784 selection->clear();
785 ret = TRUE;
786 break;
787 case GDK_a:
788 case GDK_A:
789 if (MOD__CTRL_ONLY) {
790 sp_edit_select_all();
791 ret = TRUE;
792 }
793 break;
794 case GDK_space:
795 /* stamping mode: show outline mode moving */
796 /* FIXME: Is next condition ok? (lauris) */
797 if (sc->dragging && sc->grabbed) {
798 seltrans->stamp();
799 ret = TRUE;
800 }
801 break;
802 case GDK_x:
803 case GDK_X:
804 if (MOD__ALT_ONLY) {
805 desktop->setToolboxFocusTo ("altx");
806 ret = TRUE;
807 }
808 break;
809 case GDK_bracketleft:
810 if (MOD__ALT) {
811 gint mul = 1 + gobble_key_events(
812 get_group0_keyval(&event->key), 0); // with any mask
813 sp_selection_rotate_screen(selection, mul*1);
814 } else if (MOD__CTRL) {
815 sp_selection_rotate(selection, 90);
816 } else if (snaps) {
817 sp_selection_rotate(selection, 180/snaps);
818 }
819 ret = TRUE;
820 break;
821 case GDK_bracketright:
822 if (MOD__ALT) {
823 gint mul = 1 + gobble_key_events(
824 get_group0_keyval(&event->key), 0); // with any mask
825 sp_selection_rotate_screen(selection, -1*mul);
826 } else if (MOD__CTRL) {
827 sp_selection_rotate(selection, -90);
828 } else if (snaps) {
829 sp_selection_rotate(selection, -180/snaps);
830 }
831 ret = TRUE;
832 break;
833 case GDK_less:
834 case GDK_comma:
835 if (MOD__ALT) {
836 gint mul = 1 + gobble_key_events(
837 get_group0_keyval(&event->key), 0); // with any mask
838 sp_selection_scale_screen(selection, -2*mul);
839 } else if (MOD__CTRL) {
840 sp_selection_scale_times(selection, 0.5);
841 } else {
842 gint mul = 1 + gobble_key_events(
843 get_group0_keyval(&event->key), 0); // with any mask
844 sp_selection_scale(selection, -offset*mul);
845 }
846 ret = TRUE;
847 break;
848 case GDK_greater:
849 case GDK_period:
850 if (MOD__ALT) {
851 gint mul = 1 + gobble_key_events(
852 get_group0_keyval(&event->key), 0); // with any mask
853 sp_selection_scale_screen(selection, 2*mul);
854 } else if (MOD__CTRL) {
855 sp_selection_scale_times(selection, 2);
856 } else {
857 gint mul = 1 + gobble_key_events(
858 get_group0_keyval(&event->key), 0); // with any mask
859 sp_selection_scale(selection, offset*mul);
860 }
861 ret = TRUE;
862 break;
863 case GDK_Return:
864 if (MOD__CTRL_ONLY) {
865 if (selection->singleItem()) {
866 SPItem *clicked_item = selection->singleItem();
867 if ( SP_IS_GROUP(clicked_item) &&
868 !SP_IS_BOX3D(clicked_item)) { // enter group if it's not a 3D box
869 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
870 sp_desktop_selection(desktop)->clear();
871 } else {
872 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
873 }
874 }
875 ret = TRUE;
876 }
877 break;
878 case GDK_BackSpace:
879 if (MOD__CTRL_ONLY) {
880 sp_select_context_up_one_layer(desktop);
881 ret = TRUE;
882 }
883 break;
884 case GDK_s:
885 case GDK_S:
886 if (MOD__SHIFT_ONLY) {
887 if (!selection->isEmpty()) {
888 seltrans->increaseState();
889 }
890 ret = TRUE;
891 }
892 break;
893 case GDK_g:
894 case GDK_G:
895 if (MOD__SHIFT_ONLY) {
896 sp_selection_to_guides();
897 ret = true;
898 }
899 break;
900 default:
901 break;
902 }
903 break;
905 case GDK_KEY_RELEASE:
906 {
907 guint keyval = get_group0_keyval(&event->key);
908 if (key_is_a_modifier (keyval))
909 event_context->defaultMessageContext()->clear();
911 bool alt = ( MOD__ALT
912 || (keyval == GDK_Alt_L)
913 || (keyval == GDK_Alt_R)
914 || (keyval == GDK_Meta_L)
915 || (keyval == GDK_Meta_R));
917 if (Inkscape::Rubberband::get()->is_started()) {
918 // if Alt then change cursor to moving cursor:
919 if (alt) {
920 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_RECT);
921 }
922 }
923 }
924 // set cursor to default.
925 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
926 break;
927 default:
928 break;
929 }
931 if (!ret) {
932 if (((SPEventContextClass *) parent_class)->root_handler)
933 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
934 }
936 return ret;
937 }
940 /*
941 Local Variables:
942 mode:c++
943 c-file-style:"stroustrup"
944 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
945 indent-tabs-mode:nil
946 fill-column:99
947 End:
948 */
949 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :