aedd3babc9f372e7abd41f7323c75f220c5eab66
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 "preferences.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, Inkscape::Preferences::Entry *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 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
183 if (prefs->getBool("/tools/select/gradientdrag")) {
184 ec->enableGrDrag();
185 }
186 }
188 static void
189 sp_select_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val)
190 {
191 SPSelectContext *sc = SP_SELECT_CONTEXT(ec);
192 Glib::ustring path = val->getEntryName();
194 if (path == "show") {
195 if (val->getString() == "outline") {
196 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_OUTLINE);
197 } else {
198 sc->_seltrans->setShow(Inkscape::SelTrans::SHOW_CONTENT);
199 }
200 }
201 }
203 static bool
204 sp_select_context_abort(SPEventContext *event_context)
205 {
206 SPDesktop *desktop = event_context->desktop;
207 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
208 Inkscape::SelTrans *seltrans = sc->_seltrans;
210 if (sc->dragging) {
211 if (sc->moved) { // cancel dragging an object
212 seltrans->ungrab();
213 sc->moved = FALSE;
214 sc->dragging = FALSE;
215 sp_event_context_snap_window_closed(event_context);
216 drag_escaped = 1;
218 if (sc->item) {
219 // only undo if the item is still valid
220 if (SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))) {
221 sp_document_undo(sp_desktop_document(desktop));
222 }
224 sp_object_unref( SP_OBJECT(sc->item), NULL);
225 } else if (sc->button_press_ctrl) {
226 // NOTE: This is a workaround to a bug.
227 // When the ctrl key is held, sc->item is not defined
228 // so in this case (only), we skip the object doc check
229 sp_document_undo(sp_desktop_document(desktop));
230 }
231 sc->item = NULL;
233 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Move canceled."));
234 return true;
235 }
236 } else {
237 if (Inkscape::Rubberband::get(desktop)->is_started()) {
238 Inkscape::Rubberband::get(desktop)->stop();
239 rb_escaped = 1;
240 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
241 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selection canceled."));
242 return true;
243 }
244 }
245 return false;
246 }
248 bool
249 key_is_a_modifier (guint key) {
250 return (key == GDK_Alt_L ||
251 key == GDK_Alt_R ||
252 key == GDK_Control_L ||
253 key == GDK_Control_R ||
254 key == GDK_Shift_L ||
255 key == GDK_Shift_R ||
256 key == GDK_Meta_L || // Meta is when you press Shift+Alt (at least on my machine)
257 key == GDK_Meta_R);
258 }
260 void
261 sp_select_context_up_one_layer(SPDesktop *desktop)
262 {
263 /* Click in empty place, go up one level -- but don't leave a layer to root.
264 *
265 * (Rationale: we don't usually allow users to go to the root, since that
266 * detracts from the layer metaphor: objects at the root level can in front
267 * of or behind layers. Whereas it's fine to go to the root if editing
268 * a document that has no layers (e.g. a non-Inkscape document).)
269 *
270 * Once we support editing SVG "islands" (e.g. <svg> embedded in an xhtml
271 * document), we might consider further restricting the below to disallow
272 * leaving a layer to go to a non-layer.
273 */
274 SPObject *const current_layer = desktop->currentLayer();
275 if (current_layer) {
276 SPObject *const parent = SP_OBJECT_PARENT(current_layer);
277 if ( parent
278 && ( SP_OBJECT_PARENT(parent)
279 || !( SP_IS_GROUP(current_layer)
280 && ( SPGroup::LAYER
281 == SP_GROUP(current_layer)->layerMode() ) ) ) )
282 {
283 desktop->setCurrentLayer(parent);
284 if (SP_IS_GROUP(current_layer) && SPGroup::LAYER != SP_GROUP(current_layer)->layerMode())
285 sp_desktop_selection(desktop)->set(current_layer);
286 }
287 }
288 }
290 static gint
291 sp_select_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
292 {
293 gint ret = FALSE;
295 SPDesktop *desktop = event_context->desktop;
296 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
297 Inkscape::SelTrans *seltrans = sc->_seltrans;
299 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
300 tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
302 // make sure we still have valid objects to move around
303 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
304 sp_select_context_abort(event_context);
305 }
307 switch (event->type) {
308 case GDK_BUTTON_PRESS:
309 if (event->button.button == 1 && !event_context->space_panning) {
310 /* Left mousebutton */
312 // save drag origin
313 xp = (gint) event->button.x;
314 yp = (gint) event->button.y;
315 within_tolerance = true;
317 // remember what modifiers were on before button press
318 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
319 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
320 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
322 if (event->button.state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)) {
323 // if shift or ctrl was pressed, do not move objects;
324 // pass the event to root handler which will perform rubberband, shift-click, ctrl-click, ctrl-drag
325 } else {
326 sc->dragging = TRUE;
327 sp_event_context_snap_window_open(event_context);
328 sc->moved = FALSE;
330 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
332 // remember the clicked item in sc->item:
333 if (sc->item) {
334 sp_object_unref(sc->item, NULL);
335 sc->item = NULL;
336 }
337 sc->item = sp_event_context_find_item (desktop,
338 Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
339 sp_object_ref(sc->item, NULL);
341 rb_escaped = drag_escaped = 0;
343 if (sc->grabbed) {
344 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
345 sc->grabbed = NULL;
346 }
347 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->drawing),
348 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
349 GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,
350 NULL, event->button.time);
351 sc->grabbed = SP_CANVAS_ITEM(desktop->drawing);
353 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
355 ret = TRUE;
356 }
357 } else if (event->button.button == 3) {
358 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
359 sp_select_context_abort(event_context);
360 }
361 break;
363 case GDK_ENTER_NOTIFY:
364 {
365 if (!desktop->isWaitingCursor()) {
366 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
367 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
368 gdk_cursor_destroy(cursor);
369 }
370 break;
371 }
373 case GDK_LEAVE_NOTIFY:
374 if (!desktop->isWaitingCursor())
375 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
376 break;
378 case GDK_KEY_PRESS:
379 if (get_group0_keyval (&event->key) == GDK_space) {
380 if (sc->dragging && sc->grabbed) {
381 /* stamping mode: show content mode moving */
382 seltrans->stamp();
383 ret = TRUE;
384 }
385 }
386 break;
388 default:
389 break;
390 }
392 if (!ret) {
393 if (((SPEventContextClass *) parent_class)->item_handler)
394 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
395 }
397 return ret;
398 }
400 static gint
401 sp_select_context_root_handler(SPEventContext *event_context, GdkEvent *event)
402 {
403 SPItem *item = NULL;
404 SPItem *item_at_point = NULL, *group_at_point = NULL, *item_in_group = NULL;
405 gint ret = FALSE;
407 SPDesktop *desktop = event_context->desktop;
408 SPSelectContext *sc = SP_SELECT_CONTEXT(event_context);
409 Inkscape::SelTrans *seltrans = sc->_seltrans;
410 Inkscape::Selection *selection = sp_desktop_selection(desktop);
411 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
413 gdouble const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000); // in px
414 gdouble const offset = prefs->getDoubleLimited("/options/defaultscale/value", 2, 0, 1000);
415 tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);
416 int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);
418 // make sure we still have valid objects to move around
419 if (sc->item && SP_OBJECT_DOCUMENT( SP_OBJECT(sc->item))==NULL) {
420 sp_select_context_abort(event_context);
421 }
423 switch (event->type) {
424 case GDK_2BUTTON_PRESS:
425 if (event->button.button == 1) {
426 if (!selection->isEmpty()) {
427 SPItem *clicked_item = (SPItem *) selection->itemList()->data;
428 if (SP_IS_GROUP(clicked_item) && !SP_IS_BOX3D(clicked_item)) { // enter group if it's not a 3D box
429 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
430 sp_desktop_selection(desktop)->clear();
431 sc->dragging = false;
432 sp_event_context_snap_window_closed(event_context);
434 sp_canvas_end_forced_full_redraws(desktop->canvas);
435 } else { // switch tool
436 Geom::Point const button_pt(event->button.x, event->button.y);
437 Geom::Point const p(desktop->w2d(button_pt));
438 tools_switch_by_item (desktop, clicked_item, p);
439 }
440 } else {
441 sp_select_context_up_one_layer(desktop);
442 }
443 ret = TRUE;
444 }
445 break;
446 case GDK_BUTTON_PRESS:
447 if (event->button.button == 1 && !event_context->space_panning) {
449 // save drag origin
450 xp = (gint) event->button.x;
451 yp = (gint) event->button.y;
452 within_tolerance = true;
454 Geom::Point const button_pt(event->button.x, event->button.y);
455 Geom::Point const p(desktop->w2d(button_pt));
456 if (event->button.state & GDK_MOD1_MASK)
457 Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
458 Inkscape::Rubberband::get(desktop)->start(desktop, p);
459 if (sc->grabbed) {
460 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
461 sc->grabbed = NULL;
462 }
463 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
464 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK,
465 NULL, event->button.time);
466 sc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
468 // remember what modifiers were on before button press
469 sc->button_press_shift = (event->button.state & GDK_SHIFT_MASK) ? true : false;
470 sc->button_press_ctrl = (event->button.state & GDK_CONTROL_MASK) ? true : false;
471 sc->button_press_alt = (event->button.state & GDK_MOD1_MASK) ? true : false;
473 sc->moved = FALSE;
475 rb_escaped = drag_escaped = 0;
477 ret = TRUE;
478 } else if (event->button.button == 3) {
479 // right click; do not eat it so that right-click menu can appear, but cancel dragging & rubberband
480 sp_select_context_abort(event_context);
481 }
482 break;
484 case GDK_MOTION_NOTIFY:
485 if (event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
486 Geom::Point const motion_pt(event->motion.x, event->motion.y);
487 Geom::Point const p(desktop->w2d(motion_pt));
489 if ( within_tolerance
490 && ( abs( (gint) event->motion.x - xp ) < tolerance )
491 && ( abs( (gint) event->motion.y - yp ) < tolerance ) ) {
492 break; // do not drag if we're within tolerance from origin
493 }
494 // Once the user has moved farther than tolerance from the original location
495 // (indicating they intend to move the object, not click), then always process the
496 // motion notify coordinates as given (no snapping back to origin)
497 within_tolerance = false;
499 if (sc->button_press_ctrl || (sc->button_press_alt && !sc->button_press_shift && !selection->isEmpty())) {
500 // if it's not click and ctrl or alt was pressed (the latter with some selection
501 // but not with shift) we want to drag rather than rubberband
502 if (sc->dragging == FALSE) {
503 sp_event_context_snap_window_open(event_context);
504 }
505 sc->dragging = TRUE;
507 sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 5);
508 }
510 if (sc->dragging) {
511 /* User has dragged fast, so we get events on root (lauris)*/
512 // not only that; we will end up here when ctrl-dragging as well
513 // and also when we started within tolerance, but trespassed tolerance outside of item
514 Inkscape::Rubberband::get(desktop)->stop();
515 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
516 item_at_point = desktop->item_at_point(Geom::Point(event->button.x, event->button.y), FALSE);
517 if (!item_at_point) // if no item at this point, try at the click point (bug 1012200)
518 item_at_point = desktop->item_at_point(Geom::Point(xp, yp), FALSE);
519 if (item_at_point || sc->moved || sc->button_press_alt) {
520 // drag only if starting from an item, or if something is already grabbed, or if alt-dragging
521 if (!sc->moved) {
522 item_in_group = desktop->item_at_point(Geom::Point(event->button.x, event->button.y), TRUE);
523 group_at_point = desktop->group_at_point(Geom::Point(event->button.x, event->button.y));
524 if (SP_IS_LAYER(selection->single()))
525 group_at_point = SP_GROUP(selection->single());
527 // group-at-point is meant to be topmost item if it's a group,
528 // not topmost group of all items at point
529 if (group_at_point != item_in_group &&
530 !(group_at_point && item_at_point &&
531 group_at_point->isAncestorOf(item_at_point)))
532 group_at_point = NULL;
534 // if neither a group nor an item (possibly in a group) at point are selected, set selection to the item at point
535 if ((!item_in_group || !selection->includes(item_in_group)) &&
536 (!group_at_point || !selection->includes(group_at_point))
537 && !sc->button_press_alt) {
538 // select what is under cursor
539 if (!seltrans->isEmpty()) {
540 seltrans->resetState();
541 }
542 // when simply ctrl-dragging, we don't want to go into groups
543 if (item_at_point && !selection->includes(item_at_point))
544 selection->set(item_at_point);
545 } // otherwise, do not change selection so that dragging selected-within-group items, as well as alt-dragging, is possible
546 seltrans->grab(p, -1, -1, FALSE);
547 sc->moved = TRUE;
548 }
549 if (!seltrans->isEmpty())
550 seltrans->moveTo(p, event->button.state);
551 desktop->scroll_to_point(p);
552 gobble_motion_events(GDK_BUTTON1_MASK);
553 ret = TRUE;
554 } else {
555 sc->dragging = FALSE;
556 sp_event_context_snap_window_closed(event_context);
557 sp_canvas_end_forced_full_redraws(desktop->canvas);
558 }
559 } else {
560 if (Inkscape::Rubberband::get(desktop)->is_started()) {
561 Inkscape::Rubberband::get(desktop)->move(p);
562 if (Inkscape::Rubberband::get(desktop)->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
563 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> objects to select them; release <b>Alt</b> to switch to rubberband selection"));
564 } else {
565 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Drag around</b> objects to select them; press <b>Alt</b> to switch to touch selection"));
566 }
567 gobble_motion_events(GDK_BUTTON1_MASK);
568 }
569 }
570 }
571 break;
572 case GDK_BUTTON_RELEASE:
573 xp = yp = 0;
574 if ((event->button.button == 1) && (sc->grabbed) && !event_context->space_panning) {
575 if (sc->dragging) {
576 if (sc->moved) {
577 // item has been moved
578 seltrans->ungrab();
579 sc->moved = FALSE;
580 } else if (sc->item && !drag_escaped) {
581 // item has not been moved -> simply a click, do selecting
582 if (!selection->isEmpty()) {
583 if (event->button.state & GDK_SHIFT_MASK) {
584 // with shift, toggle selection
585 seltrans->resetState();
586 selection->toggle(sc->item);
587 } else {
588 SPObject* single = selection->single();
589 // without shift, increase state (i.e. toggle scale/rotation handles)
590 if (selection->includes(sc->item)) {
591 seltrans->increaseState();
592 } else if (SP_IS_LAYER(single) && single->isAncestorOf(sc->item)) {
593 seltrans->increaseState();
594 } else {
595 seltrans->resetState();
596 selection->set(sc->item);
597 }
598 }
599 } else { // simple or shift click, no previous selection
600 seltrans->resetState();
601 selection->set(sc->item);
602 }
603 }
604 sc->dragging = FALSE;
605 sp_event_context_snap_window_closed(event_context);
606 sp_canvas_end_forced_full_redraws(desktop->canvas);
608 if (sc->item) {
609 sp_object_unref( SP_OBJECT(sc->item), NULL);
610 }
611 sc->item = NULL;
612 } else {
613 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get(desktop);
614 if (r->is_started() && !within_tolerance) {
615 // this was a rubberband drag
616 GSList *items = NULL;
617 if (r->getMode() == RUBBERBAND_MODE_RECT) {
618 Geom::OptRect const b = r->getRectangle();
619 items = sp_document_items_in_box(sp_desktop_document(desktop), desktop->dkey, *b);
620 } else if (r->getMode() == RUBBERBAND_MODE_TOUCHPATH) {
621 items = sp_document_items_at_points(sp_desktop_document(desktop), desktop->dkey, r->getPoints());
622 }
624 seltrans->resetState();
625 r->stop();
626 SP_EVENT_CONTEXT(sc)->defaultMessageContext()->clear();
628 if (event->button.state & GDK_SHIFT_MASK) {
629 // with shift, add to selection
630 selection->addList (items);
631 } else {
632 // without shift, simply select anew
633 selection->setList (items);
634 }
635 g_slist_free (items);
636 } else { // it was just a click, or a too small rubberband
637 r->stop();
638 if (sc->button_press_shift && !rb_escaped && !drag_escaped) {
639 // this was a shift+click or alt+shift+click, select what was clicked upon
641 sc->button_press_shift = false;
643 if (sc->button_press_ctrl) {
644 // go into groups, honoring Alt
645 item = sp_event_context_find_item (desktop,
646 Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, TRUE);
647 sc->button_press_ctrl = FALSE;
648 } else {
649 // don't go into groups, honoring Alt
650 item = sp_event_context_find_item (desktop,
651 Geom::Point(event->button.x, event->button.y), event->button.state & GDK_MOD1_MASK, FALSE);
652 }
654 if (item) {
655 selection->toggle(item);
656 item = NULL;
657 }
659 } else if ((sc->button_press_ctrl || sc->button_press_alt) && !rb_escaped && !drag_escaped) { // ctrl+click, alt+click
661 item = sp_event_context_find_item (desktop,
662 Geom::Point(event->button.x, event->button.y), sc->button_press_alt, sc->button_press_ctrl);
664 sc->button_press_ctrl = FALSE;
665 sc->button_press_alt = FALSE;
667 if (item) {
668 if (selection->includes(item)) {
669 seltrans->increaseState();
670 } else {
671 seltrans->resetState();
672 selection->set(item);
673 }
674 item = NULL;
675 }
677 } else { // click without shift, simply deselect, unless with Alt or something was cancelled
678 if (!selection->isEmpty()) {
679 if (!(rb_escaped) && !(drag_escaped) && !(event->button.state & GDK_MOD1_MASK))
680 selection->clear();
681 rb_escaped = 0;
682 ret = TRUE;
683 }
684 }
685 }
686 ret = TRUE;
687 }
688 if (sc->grabbed) {
689 sp_canvas_item_ungrab(sc->grabbed, event->button.time);
690 sc->grabbed = NULL;
691 }
693 desktop->updateNow();
694 }
695 if (event->button.button == 1) {
696 Inkscape::Rubberband::get(desktop)->stop(); // might have been started in another tool!
697 }
698 sc->button_press_shift = false;
699 sc->button_press_ctrl = false;
700 sc->button_press_alt = false;
701 break;
703 case GDK_KEY_PRESS: // keybindings for select context
705 {
706 guint keyval = get_group0_keyval(&event->key);
707 bool alt = ( MOD__ALT
708 || (keyval == GDK_Alt_L)
709 || (keyval == GDK_Alt_R)
710 || (keyval == GDK_Meta_L)
711 || (keyval == GDK_Meta_R));
713 if (!key_is_a_modifier (keyval)) {
714 event_context->defaultMessageContext()->clear();
715 } else if (sc->grabbed || seltrans->isGrabbed()) {
716 if (Inkscape::Rubberband::get(desktop)->is_started()) {
717 // if Alt then change cursor to moving cursor:
718 if (alt) {
719 Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
720 }
721 } else {
722 // do not change the statusbar text when mousekey is down to move or transform the object,
723 // because the statusbar text is already updated somewhere else.
724 break;
725 }
726 } else {
727 sp_event_show_modifier_tip (event_context->defaultMessageContext(), event,
728 _("<b>Ctrl</b>: click to select in groups; drag to move hor/vert"),
729 _("<b>Shift</b>: click to toggle select; drag for rubberband selection"),
730 _("<b>Alt</b>: click to select under; drag to move selected or select by touch"));
731 // if Alt and nonempty selection, show moving cursor ("move selected"):
732 if (alt && !selection->isEmpty() && !desktop->isWaitingCursor()) {
733 GdkCursor *cursor = gdk_cursor_new(GDK_FLEUR);
734 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, cursor);
735 gdk_cursor_destroy(cursor);
736 }
737 //*/
738 break;
739 }
740 }
742 switch (get_group0_keyval (&event->key)) {
743 case GDK_Left: // move selection left
744 case GDK_KP_Left:
745 case GDK_KP_4:
746 if (!MOD__CTRL) { // not ctrl
747 gint mul = 1 + gobble_key_events(
748 get_group0_keyval(&event->key), 0); // with any mask
749 if (MOD__ALT) { // alt
750 if (MOD__SHIFT) sp_selection_move_screen(desktop, mul*-10, 0); // shift
751 else sp_selection_move_screen(desktop, mul*-1, 0); // no shift
752 }
753 else { // no alt
754 if (MOD__SHIFT) sp_selection_move(desktop, mul*-10*nudge, 0); // shift
755 else sp_selection_move(desktop, mul*-nudge, 0); // no shift
756 }
757 ret = TRUE;
758 }
759 break;
760 case GDK_Up: // move selection up
761 case GDK_KP_Up:
762 case GDK_KP_8:
763 if (!MOD__CTRL) { // not ctrl
764 gint mul = 1 + gobble_key_events(
765 get_group0_keyval(&event->key), 0); // with any mask
766 if (MOD__ALT) { // alt
767 if (MOD__SHIFT) sp_selection_move_screen(desktop, 0, mul*10); // shift
768 else sp_selection_move_screen(desktop, 0, mul*1); // no shift
769 }
770 else { // no alt
771 if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*10*nudge); // shift
772 else sp_selection_move(desktop, 0, mul*nudge); // no shift
773 }
774 ret = TRUE;
775 }
776 break;
777 case GDK_Right: // move selection right
778 case GDK_KP_Right:
779 case GDK_KP_6:
780 if (!MOD__CTRL) { // not ctrl
781 gint mul = 1 + gobble_key_events(
782 get_group0_keyval(&event->key), 0); // with any mask
783 if (MOD__ALT) { // alt
784 if (MOD__SHIFT) sp_selection_move_screen(desktop, mul*10, 0); // shift
785 else sp_selection_move_screen(desktop, mul*1, 0); // no shift
786 }
787 else { // no alt
788 if (MOD__SHIFT) sp_selection_move(desktop, mul*10*nudge, 0); // shift
789 else sp_selection_move(desktop, mul*nudge, 0); // no shift
790 }
791 ret = TRUE;
792 }
793 break;
794 case GDK_Down: // move selection down
795 case GDK_KP_Down:
796 case GDK_KP_2:
797 if (!MOD__CTRL) { // not ctrl
798 gint mul = 1 + gobble_key_events(
799 get_group0_keyval(&event->key), 0); // with any mask
800 if (MOD__ALT) { // alt
801 if (MOD__SHIFT) sp_selection_move_screen(desktop, 0, mul*-10); // shift
802 else sp_selection_move_screen(desktop, 0, mul*-1); // no shift
803 }
804 else { // no alt
805 if (MOD__SHIFT) sp_selection_move(desktop, 0, mul*-10*nudge); // shift
806 else sp_selection_move(desktop, 0, mul*-nudge); // no shift
807 }
808 ret = TRUE;
809 }
810 break;
811 case GDK_Escape:
812 if (!sp_select_context_abort(event_context))
813 selection->clear();
814 ret = TRUE;
815 break;
816 case GDK_a:
817 case GDK_A:
818 if (MOD__CTRL_ONLY) {
819 sp_edit_select_all(desktop);
820 ret = TRUE;
821 }
822 break;
823 case GDK_space:
824 /* stamping mode: show outline mode moving */
825 /* FIXME: Is next condition ok? (lauris) */
826 if (sc->dragging && sc->grabbed) {
827 seltrans->stamp();
828 ret = TRUE;
829 }
830 break;
831 case GDK_x:
832 case GDK_X:
833 if (MOD__ALT_ONLY) {
834 desktop->setToolboxFocusTo ("altx");
835 ret = TRUE;
836 }
837 break;
838 case GDK_bracketleft:
839 if (MOD__ALT) {
840 gint mul = 1 + gobble_key_events(
841 get_group0_keyval(&event->key), 0); // with any mask
842 sp_selection_rotate_screen(selection, mul*1);
843 } else if (MOD__CTRL) {
844 sp_selection_rotate(selection, 90);
845 } else if (snaps) {
846 sp_selection_rotate(selection, 180/snaps);
847 }
848 ret = TRUE;
849 break;
850 case GDK_bracketright:
851 if (MOD__ALT) {
852 gint mul = 1 + gobble_key_events(
853 get_group0_keyval(&event->key), 0); // with any mask
854 sp_selection_rotate_screen(selection, -1*mul);
855 } else if (MOD__CTRL) {
856 sp_selection_rotate(selection, -90);
857 } else if (snaps) {
858 sp_selection_rotate(selection, -180/snaps);
859 }
860 ret = TRUE;
861 break;
862 case GDK_less:
863 case GDK_comma:
864 if (MOD__ALT) {
865 gint mul = 1 + gobble_key_events(
866 get_group0_keyval(&event->key), 0); // with any mask
867 sp_selection_scale_screen(selection, -2*mul);
868 } else if (MOD__CTRL) {
869 sp_selection_scale_times(selection, 0.5);
870 } else {
871 gint mul = 1 + gobble_key_events(
872 get_group0_keyval(&event->key), 0); // with any mask
873 sp_selection_scale(selection, -offset*mul);
874 }
875 ret = TRUE;
876 break;
877 case GDK_greater:
878 case GDK_period:
879 if (MOD__ALT) {
880 gint mul = 1 + gobble_key_events(
881 get_group0_keyval(&event->key), 0); // with any mask
882 sp_selection_scale_screen(selection, 2*mul);
883 } else if (MOD__CTRL) {
884 sp_selection_scale_times(selection, 2);
885 } else {
886 gint mul = 1 + gobble_key_events(
887 get_group0_keyval(&event->key), 0); // with any mask
888 sp_selection_scale(selection, offset*mul);
889 }
890 ret = TRUE;
891 break;
892 case GDK_Return:
893 if (MOD__CTRL_ONLY) {
894 if (selection->singleItem()) {
895 SPItem *clicked_item = selection->singleItem();
896 if ( SP_IS_GROUP(clicked_item) ||
897 SP_IS_BOX3D(clicked_item)) { // enter group or a 3D box
898 desktop->setCurrentLayer(reinterpret_cast<SPObject *>(clicked_item));
899 sp_desktop_selection(desktop)->clear();
900 } else {
901 SP_EVENT_CONTEXT(sc)->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Selected object is not a group. Cannot enter."));
902 }
903 }
904 ret = TRUE;
905 }
906 break;
907 case GDK_BackSpace:
908 if (MOD__CTRL_ONLY) {
909 sp_select_context_up_one_layer(desktop);
910 ret = TRUE;
911 }
912 break;
913 case GDK_s:
914 case GDK_S:
915 if (MOD__SHIFT_ONLY) {
916 if (!selection->isEmpty()) {
917 seltrans->increaseState();
918 }
919 ret = TRUE;
920 }
921 break;
922 case GDK_g:
923 case GDK_G:
924 if (MOD__SHIFT_ONLY) {
925 sp_selection_to_guides(desktop);
926 ret = true;
927 }
928 break;
929 default:
930 break;
931 }
932 break;
934 case GDK_KEY_RELEASE:
935 {
936 guint keyval = get_group0_keyval(&event->key);
937 if (key_is_a_modifier (keyval))
938 event_context->defaultMessageContext()->clear();
940 bool alt = ( MOD__ALT
941 || (keyval == GDK_Alt_L)
942 || (keyval == GDK_Alt_R)
943 || (keyval == GDK_Meta_L)
944 || (keyval == GDK_Meta_R));
946 if (Inkscape::Rubberband::get(desktop)->is_started()) {
947 // if Alt then change cursor to moving cursor:
948 if (alt) {
949 Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_RECT);
950 }
951 }
952 }
953 // set cursor to default.
954 if (!desktop->isWaitingCursor())
955 gdk_window_set_cursor(GTK_WIDGET(sp_desktop_canvas(desktop))->window, event_context->cursor);
956 break;
957 default:
958 break;
959 }
961 if (!ret) {
962 if (((SPEventContextClass *) parent_class)->root_handler)
963 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
964 }
966 return ret;
967 }
970 /*
971 Local Variables:
972 mode:c++
973 c-file-style:"stroustrup"
974 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
975 indent-tabs-mode:nil
976 fill-column:99
977 End:
978 */
979 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :