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 <gdk/gdkkeysyms.h>
20 #include "macros.h"
21 #include "rubberband.h"
22 #include "document.h"
23 #include "selection.h"
24 #include "seltrans-handles.h"
25 #include "sp-cursor.h"
26 #include "pixmaps/cursor-select-m.xpm"
27 #include "pixmaps/cursor-select-d.xpm"
28 #include "pixmaps/handles.xpm"
29 #include <glibmm/i18n.h>
31 #include "select-context.h"
32 #include "selection-chemistry.h"
33 #include "desktop.h"
34 #include "desktop-handles.h"
35 #include "sp-root.h"
36 #include "prefs-utils.h"
37 #include "tools-switch.h"
38 #include "message-stack.h"
39 #include "selection-describer.h"
40 #include "seltrans.h"
42 static void sp_select_context_class_init(SPSelectContextClass *klass);
43 static void sp_select_context_init(SPSelectContext *select_context);
44 static void sp_select_context_dispose(GObject *object);
46 static void sp_select_context_setup(SPEventContext *ec);
47 static void sp_select_context_set(SPEventContext *ec, gchar const *key, gchar const *val);
48 static gint sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event);
49 static gint sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
51 static SPEventContextClass *parent_class;
53 static GdkCursor *CursorSelectMouseover = NULL;
54 static GdkCursor *CursorSelectDragging = NULL;
55 GdkPixbuf *handles[13];
57 static gint rb_escaped = 0; // if non-zero, rubberband was canceled by esc, so the next button release should not deselect
58 static gint drag_escaped = 0; // if non-zero, drag was canceled by esc
60 static gint xp = 0, yp = 0; // where drag started
61 static gint tolerance = 0;
62 static bool within_tolerance = false;
64 GtkType
65 sp_select_context_get_type(void)
66 {
67 static GType type = 0;
68 if (!type) {
69 GTypeInfo info = {
70 sizeof(SPSelectContextClass),
71 NULL, NULL,
72 (GClassInitFunc) sp_select_context_class_init,
73 NULL, NULL,
74 sizeof(SPSelectContext),
75 4,
76 (GInstanceInitFunc) sp_select_context_init,
77 NULL, /* value_table */
78 };
79 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSelectContext", &info, (GTypeFlags)0);
80 }
81 return type;
82 }
84 static void
85 sp_select_context_class_init(SPSelectContextClass *klass)
86 {
87 GObjectClass *object_class = (GObjectClass *) klass;
88 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
90 parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
92 object_class->dispose = sp_select_context_dispose;
94 event_context_class->setup = sp_select_context_setup;
95 event_context_class->set = sp_select_context_set;
96 event_context_class->root_handler = sp_select_context_root_handler;
97 event_context_class->item_handler = sp_select_context_item_handler;
99 // cursors in select context
100 CursorSelectMouseover = sp_cursor_new_from_xpm(cursor_select_m_xpm , 1, 1);
101 CursorSelectDragging = sp_cursor_new_from_xpm(cursor_select_d_xpm , 1, 1);
102 // selection handles
103 handles[0] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_nw_xpm);
104 handles[1] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_ne_xpm);
105 handles[2] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_h_xpm);
106 handles[3] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_scale_v_xpm);
107 handles[4] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_nw_xpm);
108 handles[5] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_n_xpm);
109 handles[6] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_ne_xpm);
110 handles[7] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_e_xpm);
111 handles[8] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_se_xpm);
112 handles[9] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_s_xpm);
113 handles[10] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_sw_xpm);
114 handles[11] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_rotate_w_xpm);
115 handles[12] = gdk_pixbuf_new_from_xpm_data((gchar const **)handle_center_xpm);
117 }
119 static void
120 sp_select_context_init(SPSelectContext *sc)
121 {
122 sc->dragging = FALSE;
123 sc->moved = FALSE;
124 sc->button_press_shift = false;
125 sc->button_press_ctrl = false;
126 sc->button_press_alt = false;
127 sc->_seltrans = NULL;
128 sc->_describer = NULL;
129 }
131 static void
132 sp_select_context_dispose(GObject *object)
133 {
134 SPSelectContext *sc = SP_SELECT_CONTEXT(object);
135 SPEventContext * ec = SP_EVENT_CONTEXT (object);
137 ec->enableGrDrag(false);
139 if (sc->grabbed) {
140 sp_canvas_item_ungrab(sc->grabbed, GDK_CURRENT_TIME);
141 sc->grabbed = NULL;
142 }
144 delete sc->_seltrans;
145 sc->_seltrans = NULL;
146 delete sc->_describer;
147 sc->_describer = NULL;
149 if (CursorSelectDragging) {
150 gdk_cursor_unref (CursorSelectDragging);
151 CursorSelectDragging = NULL;
152 }
153 if (CursorSelectMouseover) {
154 gdk_cursor_unref (CursorSelectMouseover);
155 CursorSelectMouseover = NULL;
156 }
158 G_OBJECT_CLASS(parent_class)->dispose(object);
159 }
161 static void
162 sp_select_context_setup(SPEventContext *ec)
163 {
164 SPSelectContext *select_context = SP_SELECT_CONTEXT(ec);
166 if (((SPEventContextClass *) parent_class)->setup) {
167 ((SPEventContextClass *) parent_class)->setup(ec);
168 }
170 SPDesktop *desktop = ec->desktop;
172 select_context->_describer = new Inkscape::SelectionDescriber(desktop->selection, desktop->messageStack());
174 select_context->_seltrans = new Inkscape::SelTrans(desktop);
176 sp_event_context_read(ec, "show");
177 sp_event_context_read(ec, "transform");
179 if (prefs_get_int_attribute("tools.select", "gradientdrag", 0) != 0) {
180 ec->enableGrDrag();
181 }
182 }
184 static void
185 sp_select_context_set(SPEventContext *ec, gchar const *key, gchar const *val)
186 {
187 SPSelectContext *sc = SP_SELECT_CONTEXT(ec);
189 if (!strcmp(key, "show")) {
190 if (val && !strcmp(val, "outline")) {
191 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);
192 } else {
193 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);
194 }
195 }
196 }
198 static bool
199 sp_select_context_abort(SPEventContext *event_context)
200 {
201 SPDesktop *desktop = event_context->desktop;
202 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
203 Inkscape::SelTrans *seltrans = sc->_seltrans;
205 if (sc->dragging) {
206 if (sc->moved) { // cancel dragging an object
207 seltrans->ungrab();
208 sc->moved = FALSE;
209 sc->dragging = FALSE;
210 drag_escaped = 1;
212 if (sc->item) {
213 // only undo if the item is still valid
214 if (SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))) {
215 sp_document_undo(sp_desktop_document(desktop));
216 }
218 sp_object_unref( SP_OBJECT(sc->item), NULL);
219 } else if (sc->button_press_ctrl) {
220 // NOTE: This is a workaround to a bug.
221 // When the ctrl key is held, sc->item is not defined
222 // so in this case (only), we skip the object doc check
223 sp_document_undo(sp_desktop_document(desktop));
224 }
225 sc->item = NULL;
227 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));
228 return true;
229 }
230 } else {
231 if (Inkscape::Rubberband::get()->is_started()) {
232 Inkscape::Rubberband::get()->stop();
233 rb_escaped = 1;
234 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
235 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));
236 return true;
237 }
238 }
239 return false;
240 }
242 bool
243 key_is_a_modifier (guint key) {
244 return (key == GDK_Alt_L ||
245 key == GDK_Alt_R ||
246 key == GDK_Control_L ||
247 key == GDK_Control_R ||
248 key == GDK_Shift_L ||
249 key == GDK_Shift_R ||
250 key == GDK_Meta_L || // Meta is when you press Shift+Alt (at least on my machine)
251 key == GDK_Meta_R);
252 }
254 void
255 sp_select_context_up_one_layer(SPDesktop *desktop)
256 {
257 /* Click in empty place, go up one level -- but don't leave a layer to root.
258 *
259 * (Rationale: we don't usually allow users to go to the root, since that
260 * detracts from the layer metaphor: objects at the root level can in front
261 * of or behind layers. Whereas it's fine to go to the root if editing
262 * a document that has no layers (e.g. a non-Inkscape document).)
263 *
264 * Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml
265 * document), we might consider further restricting the below to disallow
266 * leaving a layer to go to a non-layer.
267 */
268 SPObject *const current_layer = desktop->currentLayer();
269 if (current_layer) {
270 SPObject *const parent = SP_OBJECT_PARENT(current_layer);
271 if ( parent
272 && ( SP_OBJECT_PARENT(parent)
273 || !( SP_IS_GROUP(current_layer)
274 && ( SPGroup::LAYER
275 == SP_GROUP(current_layer)->layerMode() ) ) ) )
276 {
277 desktop->setCurrentLayer(parent);
278 if (SP_IS_GROUP(current_layer) && SPGroup::LAYER != SP_GROUP(current_layer)->layerMode())
279 sp_desktop_selection(desktop)->set(current_layer);
280 }
281 }
282 }
284 static gint
285 sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
286 {
287 gint ret = FALSE;
289 SPDesktop *desktop = event_context->desktop;
290 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
291 Inkscape::SelTrans *seltrans = sc->_seltrans;
293 tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
295 // make sure we still have valid objects to move around
296 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
297 sp_select_context_abort(event_context);
298 }
300 switch (event->type) {
301 case GDK_BUTTON_PRESS:
302 if (event->button.button == 1 && !event_context->space_panning) {
303 /* Left mousebutton */
305 // save drag origin
306 xp = (gint) event->button.x;
307 yp = (gint) event->button.y;
308 within_tolerance = true;
310 // remember what modifiers were on before button press
311 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
312 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
313 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
315 if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {
316 // if shift or ctrl was pressed, do not move objects;
317 // pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
318 } else {
319 sc->dragging = TRUE;
320 sc->moved = FALSE;
322 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
324 // remember the clicked item in sc->item:
325 if (sc->item) {
326 sp_object_unref(sc->item, NULL);
327 sc->item = NULL;
328 }
329 sc->item = sp_event_context_find_item (desktop,
330 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
331 sp_object_ref(sc->item, NULL);
333 rb_escaped = drag_escaped = 0;
335 if (sc->grabbed) {
336 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
337 sc->grabbed = NULL;
338 }
339 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
340 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
341 GDK_POINTER_MOTION_MASK,
342 NULL, event->button.time);
343 sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);
345 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
347 ret = TRUE;
348 }
349 } else if (event->button.button == 3) {
350 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
351 sp_select_context_abort(event_context);
352 }
353 break;
355 case GDK_ENTER_NOTIFY:
356 {
357 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
358 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
359 gdk_cursor_destroy(cursor);
360 break;
361 }
363 case GDK_LEAVE_NOTIFY:
364 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
365 break;
367 case GDK_KEY_PRESS:
368 if (get_group0_keyval (&event->key) == GDK_space) {
369 if (sc->dragging && sc->grabbed) {
370 /* stamping mode: show content mode moving */
371 seltrans->stamp();
372 ret = TRUE;
373 }
374 }
375 break;
377 default:
378 break;
379 }
381 if (!ret) {
382 if (((SPEventContextClass *) parent_class)->item_handler)
383 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
384 }
386 return ret;
387 }
389 static gint
390 sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)
391 {
392 SPItem *item = NULL;
393 SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
394 gint ret = FALSE;
396 SPDesktop *desktop = event_context->desktop;
397 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
398 Inkscape::SelTrans *seltrans = sc->_seltrans;
399 Inkscape::Selection *selection = sp_desktop_selection(desktop);
400 gdouble const nudge = prefs_get_double_attribute_limited("options.nudgedistance", "value", 2, 0, 1000); // in px
401 gdouble const offset = prefs_get_double_attribute_limited("options.defaultscale", "value", 2, 0, 1000);
402 tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
403 int const snaps = prefs_get_int_attribute("options.rotationsnapsperpi", "value", 12);
405 // make sure we still have valid objects to move around
406 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
407 sp_select_context_abort(event_context);
408 }
410 switch (event->type) {
411 case GDK_2BUTTON_PRESS:
412 if (event->button.button == 1) {
413 if (!selection->isEmpty()) {
414 SPItem *clicked_item = (SPItem *) selection->itemList()->data;
415 if (SP_IS_GROUP (clicked_item)) { // enter group
416 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
417 sp_desktop_selection(desktop)->clear();
418 sc->dragging = false;
420 sp_canvas_end_forced_full_redraws(desktop->canvas);
421 } else { // switch tool
422 tools_switch_by_item (desktop, clicked_item);
423 }
424 } else {
425 sp_select_context_up_one_layer(desktop);
426 }
427 ret = TRUE;
428 }
429 break;
430 case GDK_BUTTON_PRESS:
431 if (event->button.button == 1 && !event_context->space_panning) {
433 // save drag origin
434 xp = (gint) event->button.x;
435 yp = (gint) event->button.y;
436 within_tolerance = true;
438 NR::Point const button_pt(event->button.x, event->button.y);
439 NR::Point const p(desktop->w2d(button_pt));
440 if (event->button.state & GDK_MOD1_MASK)
441 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
442 Inkscape::Rubberband::get()->start(desktop, p);
443 if (sc->grabbed) {
444 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
445 sc->grabbed = NULL;
446 }
447 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
448 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK,
449 NULL, event->button.time);
450 sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
452 // remember what modifiers were on before button press
453 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
454 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
455 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
457 sc->moved = FALSE;
459 rb_escaped = drag_escaped = 0;
461 ret = TRUE;
462 } else if (event->button.button == 3) {
463 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
464 sp_select_context_abort(event_context);
465 }
466 break;
468 case GDK_MOTION_NOTIFY:
469 if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
470 NR::Point const motion_pt(event->motion.x, event->motion.y);
471 NR::Point const p(desktop->w2d(motion_pt));
473 if ( within_tolerance
474 && ( abs( (gint) event->motion.x - xp ) < tolerance )
475 && ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {
476 break; // do not drag if we're within tolerance from origin
477 }
478 // Once the user has moved farther than tolerance from the original location
479 // (indicating they intend to move the object, not click), then always process the
480 // motion notify coordinates as given (no snapping back to origin)
481 within_tolerance = false;
483 if (sc->button_press_ctrl || (sc->button_press_alt && !sc->button_press_shift && !selection->isEmpty())) {
484 // if it's not click and ctrl or alt was pressed (the latter with some selection
485 // but not with shift) we want to drag rather than rubberband
486 sc->dragging = TRUE;
488 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
489 }
491 if (sc->dragging) {
492 /* User has dragged fast, so we get events on root (lauris)*/
493 // not only that; we will end up here when ctrl-dragging as well
494 // and also when we started within tolerance, but trespassed tolerance outside of item
495 Inkscape::Rubberband::get()->stop();
496 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
497 item_at_point = desktop->item_at_point(NR::Point(event->button.x, event->button.y), FALSE);
498 if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)
499 item_at_point = desktop->item_at_point(NR::Point(xp, yp), FALSE);
500 if (item_at_point || sc->moved || sc->button_press_alt) {
501 // drag only if starting from an item, or if something is already grabbed, or if alt-dragging
502 if (!sc->moved) {
503 item_in_group = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
504 group_at_point = desktop->group_at_point(NR::Point(event->button.x, event->button.y));
505 // if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
506 if ((!item_in_group || !selection->includes(item_in_group)) &&
507 (!group_at_point || !selection->includes(group_at_point))
508 && !sc->button_press_alt) {
509 // select what is under cursor
510 if (!seltrans->isEmpty()) {
511 seltrans->resetState();
512 }
513 // when simply ctrl-dragging, we don't want to go into groups
514 if (item_at_point && !selection->includes(item_at_point))
515 selection->set(item_at_point);
516 } // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
517 seltrans->grab(p, -1, -1, FALSE);
518 sc->moved = TRUE;
519 }
520 if (!seltrans->isEmpty())
521 seltrans->moveTo(p, event->button.state);
522 desktop->scroll_to_point(&p);
523 gobble_motion_events(GDK_BUTTON1_MASK);
524 ret = TRUE;
525 } else {
526 sc->dragging = FALSE;
528 sp_canvas_end_forced_full_redraws(desktop->canvas);
529 }
530 } else {
531 if (Inkscape::Rubberband::get()->is_started()) {
532 Inkscape::Rubberband::get()->move(p);
533 if (Inkscape::Rubberband::get()->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
534 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));
535 } else {
536 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));
537 }
538 gobble_motion_events(GDK_BUTTON1_MASK);
539 }
540 }
541 }
542 break;
543 case GDK_BUTTON_RELEASE:
544 xp = yp = 0;
545 if ((event->button.button == 1) && (sc->grabbed) && !event_context->space_panning) {
546 if (sc->dragging) {
547 if (sc->moved) {
548 // item has been moved
549 seltrans->ungrab();
550 sc->moved = FALSE;
551 } else if (sc->item && !drag_escaped) {
552 // item has not been moved -> simply a click, do selecting
553 if (!selection->isEmpty()) {
554 if (event->button.state & GDK_SHIFT_MASK) {
555 // with shift, toggle selection
556 seltrans->resetState();
557 selection->toggle(sc->item);
558 } else {
559 // without shift, increase state (i.e. toggle scale/rotation handles)
560 if (selection->includes(sc->item)) {
561 seltrans->increaseState();
562 } else {
563 seltrans->resetState();
564 selection->set(sc->item);
565 }
566 }
567 } else { // simple or shift click, no previous selection
568 seltrans->resetState();
569 selection->set(sc->item);
570 }
571 }
572 sc->dragging = FALSE;
574 sp_canvas_end_forced_full_redraws(desktop->canvas);
576 if (sc->item) {
577 sp_object_unref( SP_OBJECT(sc->item), NULL);
578 }
579 sc->item = NULL;
580 } else {
581 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
582 if (r->is_started() && !within_tolerance) {
583 // this was a rubberband drag
584 GSList *items = NULL;
585 if (r->getMode() == RUBBERBAND_MODE_RECT) {
586 NR::Maybe<NR::Rect> const b = r->getRectangle();
587 items = sp_document_items_in_box(sp_desktop_document(desktop), desktop->dkey, *b);
588 } else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
589 items = sp_document_items_at_points(sp_desktop_document(desktop), desktop->dkey, r->getPoints());
590 }
592 seltrans->resetState();
593 r->stop();
594 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
596 if (event->button.state & GDK_SHIFT_MASK) {
597 // with shift, add to selection
598 selection->addList (items);
599 } else {
600 // without shift, simply select anew
601 selection->setList (items);
602 }
603 g_slist_free (items);
604 } else { // it was just a click, or a too small rubberband
605 r->stop();
606 if (sc->button_press_shift && !rb_escaped && !drag_escaped) {
607 // this was a shift+click or alt+shift+click, select what was clicked upon
609 sc->button_press_shift = false;
611 if (sc->button_press_ctrl) {
612 // go into groups, honoring Alt
613 item = sp_event_context_find_item (desktop,
614 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
615 sc->button_press_ctrl = FALSE;
616 } else {
617 // don't go into groups, honoring Alt
618 item = sp_event_context_find_item (desktop,
619 NR::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
620 }
622 if (item) {
623 selection->toggle(item);
624 item = NULL;
625 }
627 } else if ((sc->button_press_ctrl || sc->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click
629 item = sp_event_context_find_item (desktop,
630 NR::Point(event->button.x, event->button.y), sc->button_press_alt, sc->button_press_ctrl);
632 sc->button_press_ctrl = FALSE;
633 sc->button_press_alt = FALSE;
635 if (item) {
636 if (selection->includes(item)) {
637 seltrans->increaseState();
638 } else {
639 seltrans->resetState();
640 selection->set(item);
641 }
642 item = NULL;
643 }
645 } else { // click without shift, simply deselect, unless with Alt or something was cancelled
646 if (!selection->isEmpty()) {
647 if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))
648 selection->clear();
649 rb_escaped = 0;
650 ret = TRUE;
651 }
652 }
653 }
654 ret = TRUE;
655 }
656 if (sc->grabbed) {
657 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
658 sc->grabbed = NULL;
659 }
661 desktop->updateNow();
662 }
663 if (event->button.button == 1) {
664 Inkscape::Rubberband::get()->stop(); // might have been started in another tool!
665 }
666 sc->button_press_shift = false;
667 sc->button_press_ctrl = false;
668 sc->button_press_alt = false;
669 break;
671 case GDK_KEY_PRESS: // keybindings for select context
673 {
674 guint keyval = get_group0_keyval(&event->key);
675 bool alt = ( MOD__ALT
676 || (keyval == GDK_Alt_L)
677 || (keyval == GDK_Alt_R)
678 || (keyval == GDK_Meta_L)
679 || (keyval == GDK_Meta_R));
681 if (!key_is_a_modifier (keyval)) {
682 event_context->defaultMessageContext()->clear();
683 } else if (sc->grabbed || seltrans->isGrabbed()) {
684 if (Inkscape::Rubberband::get()->is_started()) {
685 // if Alt then change cursor to moving cursor:
686 if (alt) {
687 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
688 }
689 } else {
690 // do not change the statusbar text when mousekey is down to move or transform the object,
691 // because the statusbar text is already updated somewhere else.
692 break;
693 }
694 } else {
695 sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
696 _("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),
697 _("<b>Shift</b>: click to toggle select; drag for rubberband selection"),
698 _("<b>Alt</b>: click to select under; drag to move selected or select by touch"));
699 // if Alt and nonempty selection, show moving cursor ("move selected"):
700 if (alt && !selection->isEmpty()) {
701 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
702 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
703 gdk_cursor_destroy(cursor);
704 }
705 //*/
706 break;
707 }
708 }
710 switch (get_group0_keyval (&event->key)) {
711 case GDK_Left: // move selection left
712 case GDK_KP_Left:
713 case GDK_KP_4:
714 if (!MOD__CTRL) { // not ctrl
715 if (MOD__ALT) { // alt
716 if (MOD__SHIFT) sp_selection_move_screen(-10, 0); // shift
717 else sp_selection_move_screen(-1, 0); // no shift
718 }
719 else { // no alt
720 if (MOD__SHIFT) sp_selection_move(-10*nudge, 0); // shift
721 else sp_selection_move(-nudge, 0); // no shift
722 }
723 ret = TRUE;
724 }
725 break;
726 case GDK_Up: // move selection up
727 case GDK_KP_Up:
728 case GDK_KP_8:
729 if (!MOD__CTRL) { // not ctrl
730 if (MOD__ALT) { // alt
731 if (MOD__SHIFT) sp_selection_move_screen(0, 10); // shift
732 else sp_selection_move_screen(0, 1); // no shift
733 }
734 else { // no alt
735 if (MOD__SHIFT) sp_selection_move(0, 10*nudge); // shift
736 else sp_selection_move(0, nudge); // no shift
737 }
738 ret = TRUE;
739 }
740 break;
741 case GDK_Right: // move selection right
742 case GDK_KP_Right:
743 case GDK_KP_6:
744 if (!MOD__CTRL) { // not ctrl
745 if (MOD__ALT) { // alt
746 if (MOD__SHIFT) sp_selection_move_screen(10, 0); // shift
747 else sp_selection_move_screen(1, 0); // no shift
748 }
749 else { // no alt
750 if (MOD__SHIFT) sp_selection_move(10*nudge, 0); // shift
751 else sp_selection_move(nudge, 0); // no shift
752 }
753 ret = TRUE;
754 }
755 break;
756 case GDK_Down: // move selection down
757 case GDK_KP_Down:
758 case GDK_KP_2:
759 if (!MOD__CTRL) { // not ctrl
760 if (MOD__ALT) { // alt
761 if (MOD__SHIFT) sp_selection_move_screen(0, -10); // shift
762 else sp_selection_move_screen(0, -1); // no shift
763 }
764 else { // no alt
765 if (MOD__SHIFT) sp_selection_move(0, -10*nudge); // shift
766 else sp_selection_move(0, -nudge); // no shift
767 }
768 ret = TRUE;
769 }
770 break;
771 case GDK_Escape:
772 if (!sp_select_context_abort(event_context))
773 selection->clear();
774 ret = TRUE;
775 break;
776 case GDK_a:
777 case GDK_A:
778 if (MOD__CTRL_ONLY) {
779 sp_edit_select_all();
780 ret = TRUE;
781 }
782 break;
783 case GDK_space:
784 /* stamping mode: show outline mode moving */
785 /* FIXME: Is next condition ok? (lauris) */
786 if (sc->dragging && sc->grabbed) {
787 seltrans->stamp();
788 ret = TRUE;
789 }
790 break;
791 case GDK_x:
792 case GDK_X:
793 if (MOD__ALT_ONLY) {
794 desktop->setToolboxFocusTo ("altx");
795 ret = TRUE;
796 }
797 break;
798 case GDK_bracketleft:
799 if (MOD__ALT) {
800 sp_selection_rotate_screen(selection, 1);
801 } else if (MOD__CTRL) {
802 sp_selection_rotate(selection, 90);
803 } else if (snaps) {
804 sp_selection_rotate(selection, 180/snaps);
805 }
806 ret = TRUE;
807 break;
808 case GDK_bracketright:
809 if (MOD__ALT) {
810 sp_selection_rotate_screen(selection, -1);
811 } else if (MOD__CTRL) {
812 sp_selection_rotate(selection, -90);
813 } else if (snaps) {
814 sp_selection_rotate(selection, -180/snaps);
815 }
816 ret = TRUE;
817 break;
818 case GDK_less:
819 case GDK_comma:
820 if (MOD__ALT) {
821 sp_selection_scale_screen(selection, -2);
822 } else if (MOD__CTRL) {
823 sp_selection_scale_times(selection, 0.5);
824 } else {
825 sp_selection_scale(selection, -offset);
826 }
827 ret = TRUE;
828 break;
829 case GDK_greater:
830 case GDK_period:
831 if (MOD__ALT) {
832 sp_selection_scale_screen(selection, 2);
833 } else if (MOD__CTRL) {
834 sp_selection_scale_times(selection, 2);
835 } else {
836 sp_selection_scale(selection, offset);
837 }
838 ret = TRUE;
839 break;
840 case GDK_Return:
841 if (MOD__CTRL_ONLY) {
842 if (selection->singleItem()) {
843 SPItem *clicked_item = selection->singleItem();
844 if (SP_IS_GROUP (clicked_item)) { // enter group
845 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
846 sp_desktop_selection(desktop)->clear();
847 } else {
848 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
849 }
850 }
851 ret = TRUE;
852 }
853 break;
854 case GDK_BackSpace:
855 if (MOD__CTRL_ONLY) {
856 sp_select_context_up_one_layer(desktop);
857 ret = TRUE;
858 }
859 break;
860 case GDK_s:
861 case GDK_S:
862 if (MOD__SHIFT_ONLY) {
863 if (!selection->isEmpty()) {
864 seltrans->increaseState();
865 }
866 ret = TRUE;
867 }
868 break;
869 default:
870 break;
871 }
872 break;
874 case GDK_KEY_RELEASE:
875 {
876 guint keyval = get_group0_keyval(&event->key);
877 if (key_is_a_modifier (keyval))
878 event_context->defaultMessageContext()->clear();
880 bool alt = ( MOD__ALT
881 || (keyval == GDK_Alt_L)
882 || (keyval == GDK_Alt_R)
883 || (keyval == GDK_Meta_L)
884 || (keyval == GDK_Meta_R));
886 if (Inkscape::Rubberband::get()->is_started()) {
887 // if Alt then change cursor to moving cursor:
888 if (alt) {
889 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_RECT);
890 }
891 }
892 }
893 // set cursor to default.
894 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
895 break;
896 default:
897 break;
898 }
900 if (!ret) {
901 if (((SPEventContextClass *) parent_class)->root_handler)
902 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
903 }
905 return ret;
906 }
909 /*
910 Local Variables:
911 mode:c++
912 c-file-style:"stroustrup"
913 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
914 indent-tabs-mode:nil
915 fill-column:99
916 End:
917 */
918 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :