1 #define __SP_TEXT_CONTEXT_C__
3 /*
4 * SPTextContext
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * Copyright (C) 1999-2005 authors
11 * Copyright (C) 2001 Ximian, Inc.
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
20 #include <gdk/gdkkeysyms.h>
21 #include <gtk/gtkmain.h>
22 #include <display/sp-ctrlline.h>
23 #include <display/sodipodi-ctrlrect.h>
24 #include <display/sp-ctrlquadr.h>
25 #include <gtk/gtkimmulticontext.h>
26 #include <gtkmm/clipboard.h>
28 #include "macros.h"
29 #include "sp-text.h"
30 #include "sp-flowtext.h"
31 #include "document.h"
32 #include "sp-namedview.h"
33 #include "style.h"
34 #include "selection.h"
35 #include "desktop.h"
36 #include "desktop-style.h"
37 #include "desktop-handles.h"
38 #include "desktop-affine.h"
39 #include "message-stack.h"
40 #include "message-context.h"
41 #include "pixmaps/cursor-text.xpm"
42 #include "pixmaps/cursor-text-insert.xpm"
43 #include <glibmm/i18n.h>
44 #include "object-edit.h"
45 #include "xml/repr.h"
46 #include "xml/node-event-vector.h"
47 #include "prefs-utils.h"
48 #include "rubberband.h"
49 #include "sp-metrics.h"
50 #include "context-fns.h"
51 #include "verbs.h"
53 #include "text-editing.h"
55 #include "text-context.h"
58 static void sp_text_context_class_init(SPTextContextClass *klass);
59 static void sp_text_context_init(SPTextContext *text_context);
60 static void sp_text_context_dispose(GObject *obj);
62 static void sp_text_context_setup(SPEventContext *ec);
63 static void sp_text_context_finish(SPEventContext *ec);
64 static gint sp_text_context_root_handler(SPEventContext *event_context, GdkEvent *event);
65 static gint sp_text_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
67 static void sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc);
68 static void sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc);
69 static bool sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc);
70 static int sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc);
72 static void sp_text_context_validate_cursor_iterators(SPTextContext *tc);
73 static void sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see = true);
74 static void sp_text_context_update_text_selection(SPTextContext *tc);
75 static gint sp_text_context_timeout(SPTextContext *tc);
76 static void sp_text_context_forget_text(SPTextContext *tc);
78 static gint sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc);
79 static gint sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc);
80 static void sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc);
82 static SPEventContextClass *parent_class;
84 GType
85 sp_text_context_get_type()
86 {
87 static GType type = 0;
88 if (!type) {
89 GTypeInfo info = {
90 sizeof(SPTextContextClass),
91 NULL, NULL,
92 (GClassInitFunc) sp_text_context_class_init,
93 NULL, NULL,
94 sizeof(SPTextContext),
95 4,
96 (GInstanceInitFunc) sp_text_context_init,
97 NULL, /* value_table */
98 };
99 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPTextContext", &info, (GTypeFlags)0);
100 }
101 return type;
102 }
104 static void
105 sp_text_context_class_init(SPTextContextClass *klass)
106 {
107 GObjectClass *object_class=(GObjectClass *)klass;
108 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
110 parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
112 object_class->dispose = sp_text_context_dispose;
114 event_context_class->setup = sp_text_context_setup;
115 event_context_class->finish = sp_text_context_finish;
116 event_context_class->root_handler = sp_text_context_root_handler;
117 event_context_class->item_handler = sp_text_context_item_handler;
118 }
120 static void
121 sp_text_context_init(SPTextContext *tc)
122 {
123 SPEventContext *event_context = SP_EVENT_CONTEXT(tc);
125 event_context->cursor_shape = cursor_text_xpm;
126 event_context->hot_x = 7;
127 event_context->hot_y = 7;
129 event_context->xp = 0;
130 event_context->yp = 0;
131 event_context->tolerance = 0;
132 event_context->within_tolerance = false;
134 event_context->shape_repr = NULL;
135 event_context->shape_knot_holder = NULL;
137 tc->imc = NULL;
139 tc->text = NULL;
140 tc->pdoc = NR::Point(0, 0);
141 new (&tc->text_sel_start) Inkscape::Text::Layout::iterator();
142 new (&tc->text_sel_end) Inkscape::Text::Layout::iterator();
143 new (&tc->text_selection_quads) std::vector<SPCanvasItem*>();
145 tc->unimode = false;
147 tc->cursor = NULL;
148 tc->indicator = NULL;
149 tc->frame = NULL;
150 tc->grabbed = NULL;
151 tc->timeout = 0;
152 tc->show = FALSE;
153 tc->phase = 0;
154 tc->nascent_object = 0;
155 tc->over_text = 0;
156 tc->dragging = 0;
157 tc->creating = 0;
159 new (&tc->sel_changed_connection) sigc::connection();
160 new (&tc->sel_modified_connection) sigc::connection();
161 new (&tc->style_set_connection) sigc::connection();
162 new (&tc->style_query_connection) sigc::connection();
163 }
165 static void
166 sp_text_context_dispose(GObject *obj)
167 {
168 SPTextContext *tc = SP_TEXT_CONTEXT(obj);
169 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
170 tc->style_query_connection.~connection();
171 tc->style_set_connection.~connection();
172 tc->sel_changed_connection.~connection();
173 tc->sel_modified_connection.~connection();
174 tc->text_sel_end.~iterator();
175 tc->text_sel_start.~iterator();
176 tc->text_selection_quads.~vector();
177 if (G_OBJECT_CLASS(parent_class)->dispose) {
178 G_OBJECT_CLASS(parent_class)->dispose(obj);
179 }
180 if (tc->grabbed) {
181 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
182 tc->grabbed = NULL;
183 }
185 Inkscape::Rubberband::get()->stop();
187 if (ec->shape_knot_holder) {
188 sp_knot_holder_destroy(ec->shape_knot_holder);
189 ec->shape_knot_holder = NULL;
190 }
191 if (ec->shape_repr) { // remove old listener
192 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
193 Inkscape::GC::release(ec->shape_repr);
194 ec->shape_repr = 0;
195 }
196 }
198 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
199 NULL, /* child_added */
200 NULL, /* child_removed */
201 ec_shape_event_attr_changed,
202 NULL, /* content_changed */
203 NULL /* order_changed */
204 };
206 static void
207 sp_text_context_setup(SPEventContext *ec)
208 {
209 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
210 SPDesktop *desktop = ec->desktop;
212 tc->cursor = sp_canvas_item_new(sp_desktop_controls(desktop), SP_TYPE_CTRLLINE, NULL);
213 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), 100, 0, 100, 100);
214 sp_ctrlline_set_rgba32(SP_CTRLLINE(tc->cursor), 0x000000ff);
215 sp_canvas_item_hide(tc->cursor);
217 tc->indicator = sp_canvas_item_new(sp_desktop_controls(desktop), SP_TYPE_CTRLRECT, NULL);
218 SP_CTRLRECT(tc->indicator)->setRectangle(NR::Rect(NR::Point(0, 0), NR::Point(100, 100)));
219 SP_CTRLRECT(tc->indicator)->setColor(0x0000ff7f, false, 0);
220 sp_canvas_item_hide(tc->indicator);
222 tc->frame = sp_canvas_item_new(sp_desktop_controls(desktop), SP_TYPE_CTRLRECT, NULL);
223 SP_CTRLRECT(tc->frame)->setRectangle(NR::Rect(NR::Point(0, 0), NR::Point(100, 100)));
224 SP_CTRLRECT(tc->frame)->setColor(0x0000ff7f, false, 0);
225 sp_canvas_item_hide(tc->frame);
227 tc->timeout = gtk_timeout_add(250, (GtkFunction) sp_text_context_timeout, ec);
229 tc->imc = gtk_im_multicontext_new();
230 if (tc->imc) {
231 GtkWidget *canvas = GTK_WIDGET(sp_desktop_canvas(desktop));
233 /* im preedit handling is very broken in inkscape for
234 * multi-byte characters. See bug 1086769.
235 * We need to let the IM handle the preediting, and
236 * just take in the characters when they're finished being
237 * entered.
238 */
239 gtk_im_context_set_use_preedit(tc->imc, FALSE);
240 gtk_im_context_set_client_window(tc->imc, canvas->window);
242 g_signal_connect(G_OBJECT(canvas), "focus_in_event", G_CALLBACK(sptc_focus_in), tc);
243 g_signal_connect(G_OBJECT(canvas), "focus_out_event", G_CALLBACK(sptc_focus_out), tc);
244 g_signal_connect(G_OBJECT(tc->imc), "commit", G_CALLBACK(sptc_commit), tc);
246 if (GTK_WIDGET_HAS_FOCUS(canvas)) {
247 sptc_focus_in(canvas, NULL, tc);
248 }
249 }
251 if (((SPEventContextClass *) parent_class)->setup)
252 ((SPEventContextClass *) parent_class)->setup(ec);
254 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
255 if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
256 ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
257 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
258 if (shape_repr) {
259 ec->shape_repr = shape_repr;
260 Inkscape::GC::anchor(shape_repr);
261 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
262 }
263 }
265 tc->sel_changed_connection = sp_desktop_selection(desktop)->connectChanged(
266 sigc::bind(sigc::ptr_fun(&sp_text_context_selection_changed), tc)
267 );
268 tc->sel_modified_connection = sp_desktop_selection(desktop)->connectModified(
269 sigc::bind(sigc::ptr_fun(&sp_text_context_selection_modified), tc)
270 );
271 tc->style_set_connection = desktop->connectSetStyle(
272 sigc::bind(sigc::ptr_fun(&sp_text_context_style_set), tc)
273 );
274 tc->style_query_connection = desktop->connectQueryStyle(
275 sigc::bind(sigc::ptr_fun(&sp_text_context_style_query), tc)
276 );
278 sp_text_context_selection_changed(sp_desktop_selection(desktop), tc);
280 if (prefs_get_int_attribute("tools.text", "selcue", 0) != 0) {
281 ec->enableSelectionCue();
282 }
283 if (prefs_get_int_attribute("tools.text", "gradientdrag", 0) != 0) {
284 ec->enableGrDrag();
285 }
286 }
288 static void
289 sp_text_context_finish(SPEventContext *ec)
290 {
291 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
293 if (ec->desktop) {
294 sp_signal_disconnect_by_data(sp_desktop_canvas(ec->desktop), tc);
295 }
297 ec->enableGrDrag(false);
299 tc->style_set_connection.disconnect();
300 tc->style_query_connection.disconnect();
301 tc->sel_changed_connection.disconnect();
302 tc->sel_modified_connection.disconnect();
304 sp_text_context_forget_text(SP_TEXT_CONTEXT(ec));
306 if (tc->imc) {
307 g_object_unref(G_OBJECT(tc->imc));
308 tc->imc = NULL;
309 }
311 if (tc->timeout) {
312 gtk_timeout_remove(tc->timeout);
313 tc->timeout = 0;
314 }
316 if (tc->cursor) {
317 gtk_object_destroy(GTK_OBJECT(tc->cursor));
318 tc->cursor = NULL;
319 }
321 if (tc->indicator) {
322 gtk_object_destroy(GTK_OBJECT(tc->indicator));
323 tc->indicator = NULL;
324 }
326 if (tc->frame) {
327 gtk_object_destroy(GTK_OBJECT(tc->frame));
328 tc->frame = NULL;
329 }
331 for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ;
332 it != tc->text_selection_quads.end() ; ++it) {
333 sp_canvas_item_hide(*it);
334 gtk_object_destroy(*it);
335 }
336 tc->text_selection_quads.clear();
337 }
340 static gint
341 sp_text_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
342 {
343 SPTextContext *tc = SP_TEXT_CONTEXT(event_context);
344 SPDesktop *desktop = event_context->desktop;
345 SPItem *item_ungrouped;
347 gint ret = FALSE;
349 sp_text_context_validate_cursor_iterators(tc);
351 switch (event->type) {
352 case GDK_BUTTON_PRESS:
353 if (event->button.button == 1 && !event_context->space_panning) {
354 // find out clicked item, disregarding groups
355 item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
356 if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
357 sp_desktop_selection(desktop)->set(item_ungrouped);
358 if (tc->text) {
359 // find out click point in document coordinates
360 NR::Point p = desktop->w2d(NR::Point(event->button.x, event->button.y));
361 // set the cursor closest to that point
362 tc->text_sel_start = tc->text_sel_end = sp_te_get_position_by_coords(tc->text, p);
363 // update display
364 sp_text_context_update_cursor(tc);
365 sp_text_context_update_text_selection(tc);
366 tc->dragging = 1;
367 }
368 ret = TRUE;
369 }
370 }
371 break;
372 case GDK_2BUTTON_PRESS:
373 if (event->button.button == 1 && tc->text) {
374 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
375 if (layout) {
376 if (!layout->isStartOfWord(tc->text_sel_start))
377 tc->text_sel_start.prevStartOfWord();
378 if (!layout->isEndOfWord(tc->text_sel_end))
379 tc->text_sel_end.nextEndOfWord();
380 sp_text_context_update_cursor(tc);
381 sp_text_context_update_text_selection(tc);
382 tc->dragging = 2;
383 ret = TRUE;
384 }
385 }
386 break;
387 case GDK_3BUTTON_PRESS:
388 if (event->button.button == 1 && tc->text) {
389 tc->text_sel_start.thisStartOfLine();
390 tc->text_sel_end.thisEndOfLine();
391 sp_text_context_update_cursor(tc);
392 sp_text_context_update_text_selection(tc);
393 tc->dragging = 3;
394 ret = TRUE;
395 }
396 break;
397 case GDK_BUTTON_RELEASE:
398 if (event->button.button == 1 && tc->dragging && !event_context->space_panning) {
399 tc->dragging = 0;
400 ret = TRUE;
401 }
402 break;
403 case GDK_MOTION_NOTIFY:
404 if (event->motion.state & GDK_BUTTON1_MASK && tc->dragging && !event_context->space_panning) {
405 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
406 if (!layout) break;
407 // find out click point in document coordinates
408 NR::Point p = desktop->w2d(NR::Point(event->button.x, event->button.y));
409 // set the cursor closest to that point
410 Inkscape::Text::Layout::iterator new_end = sp_te_get_position_by_coords(tc->text, p);
411 if (tc->dragging == 2) {
412 // double-click dragging: go by word
413 if (new_end < tc->text_sel_start) {
414 if (!layout->isStartOfWord(new_end))
415 new_end.prevStartOfWord();
416 } else
417 if (!layout->isEndOfWord(new_end))
418 new_end.nextEndOfWord();
419 } else if (tc->dragging == 3) {
420 // triple-click dragging: go by line
421 if (new_end < tc->text_sel_start)
422 new_end.thisStartOfLine();
423 else
424 new_end.thisEndOfLine();
425 }
426 // update display
427 if (tc->text_sel_end != new_end) {
428 tc->text_sel_end = new_end;
429 sp_text_context_update_cursor(tc);
430 sp_text_context_update_text_selection(tc);
431 }
432 gobble_motion_events(GDK_BUTTON1_MASK);
433 ret = TRUE;
434 break;
435 }
436 // find out item under mouse, disregarding groups
437 item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
438 if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
439 sp_canvas_item_show(tc->indicator);
440 NR::Maybe<NR::Rect> ibbox = sp_item_bbox_desktop(item_ungrouped);
441 if (ibbox) {
442 SP_CTRLRECT(tc->indicator)->setRectangle(*ibbox);
443 }
445 event_context->cursor_shape = cursor_text_insert_xpm;
446 event_context->hot_x = 7;
447 event_context->hot_y = 10;
448 sp_event_context_update_cursor(event_context);
449 sp_text_context_update_text_selection(tc);
451 if (SP_IS_TEXT (item_ungrouped)) {
452 desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the text, <b>drag</b> to select part of the text."));
453 } else {
454 desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the flowed text, <b>drag</b> to select part of the text."));
455 }
457 tc->over_text = true;
459 ret = TRUE;
460 }
461 break;
462 default:
463 break;
464 }
466 if (!ret) {
467 if (((SPEventContextClass *) parent_class)->item_handler)
468 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
469 }
471 return ret;
472 }
474 static void
475 sp_text_context_setup_text(SPTextContext *tc)
476 {
477 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
479 /* Create <text> */
480 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DESKTOP(ec)->doc());
481 Inkscape::XML::Node *rtext = xml_doc->createElement("svg:text");
482 rtext->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
484 /* Set style */
485 sp_desktop_apply_style_tool(SP_EVENT_CONTEXT_DESKTOP(ec), rtext, "tools.text", true);
487 sp_repr_set_svg_double(rtext, "x", tc->pdoc[NR::X]);
488 sp_repr_set_svg_double(rtext, "y", tc->pdoc[NR::Y]);
490 /* Create <tspan> */
491 Inkscape::XML::Node *rtspan = xml_doc->createElement("svg:tspan");
492 rtspan->setAttribute("sodipodi:role", "line"); // otherwise, why bother creating the tspan?
493 rtext->addChild(rtspan, NULL);
494 Inkscape::GC::release(rtspan);
496 /* Create TEXT */
497 Inkscape::XML::Node *rstring = xml_doc->createTextNode("");
498 rtspan->addChild(rstring, NULL);
499 Inkscape::GC::release(rstring);
500 SPItem *text_item = SP_ITEM(ec->desktop->currentLayer()->appendChildRepr(rtext));
501 /* fixme: Is selection::changed really immediate? */
502 /* yes, it's immediate .. why does it matter? */
503 sp_desktop_selection(ec->desktop)->set(text_item);
504 Inkscape::GC::release(rtext);
505 text_item->transform = SP_ITEM(ec->desktop->currentRoot())->getRelativeTransform(ec->desktop->currentLayer());
506 text_item->updateRepr();
507 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
508 _("Create text"));
509 }
511 /**
512 * Insert the character indicated by tc.uni to replace the current selection,
513 * and reset tc.uni/tc.unipos to empty string.
514 *
515 * \pre tc.uni/tc.unipos non-empty.
516 */
517 static void
518 insert_uni_char(SPTextContext *const tc)
519 {
520 g_return_if_fail(tc->unipos
521 && tc->unipos < sizeof(tc->uni)
522 && tc->uni[tc->unipos] == '\0');
523 unsigned int uv;
524 sscanf(tc->uni, "%x", &uv);
525 tc->unipos = 0;
526 tc->uni[tc->unipos] = '\0';
528 if ( !g_unichar_isprint(static_cast<gunichar>(uv))
529 && !(g_unichar_validate(static_cast<gunichar>(uv)) && (g_unichar_type(static_cast<gunichar>(uv)) == G_UNICODE_PRIVATE_USE) ) ) {
530 // This may be due to bad input, so it goes to statusbar.
531 tc->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE,
532 _("Non-printable character"));
533 } else {
534 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
535 sp_text_context_setup_text(tc);
536 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
537 }
539 gchar u[10];
540 guint const len = g_unichar_to_utf8(uv, u);
541 u[len] = '\0';
543 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, u);
544 sp_text_context_update_cursor(tc);
545 sp_text_context_update_text_selection(tc);
546 sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_DIALOG_TRANSFORM,
547 _("Insert Unicode character"));
548 }
549 }
551 static void
552 hex_to_printable_utf8_buf(char const *const hex, char *utf8)
553 {
554 unsigned int uv;
555 sscanf(hex, "%x", &uv);
556 if (!g_unichar_isprint((gunichar) uv)) {
557 uv = 0xfffd;
558 }
559 guint const len = g_unichar_to_utf8(uv, utf8);
560 utf8[len] = '\0';
561 }
563 static void
564 show_curr_uni_char(SPTextContext *const tc)
565 {
566 g_return_if_fail(tc->unipos < sizeof(tc->uni)
567 && tc->uni[tc->unipos] == '\0');
568 if (tc->unipos) {
569 char utf8[10];
570 hex_to_printable_utf8_buf(tc->uni, utf8);
572 /* Status bar messages are in pango markup, so we need xml escaping. */
573 if (utf8[1] == '\0') {
574 switch(utf8[0]) {
575 case '<': strcpy(utf8, "<"); break;
576 case '>': strcpy(utf8, ">"); break;
577 case '&': strcpy(utf8, "&"); break;
578 default: break;
579 }
580 }
581 tc->defaultMessageContext()->setF(Inkscape::NORMAL_MESSAGE,
582 _("Unicode (<b>Enter</b> to finish): %s: %s"), tc->uni, utf8);
583 } else {
584 tc->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));
585 }
586 }
588 static gint
589 sp_text_context_root_handler(SPEventContext *const event_context, GdkEvent *const event)
590 {
591 SPTextContext *const tc = SP_TEXT_CONTEXT(event_context);
593 SPDesktop *desktop = event_context->desktop;
595 sp_canvas_item_hide(tc->indicator);
597 sp_text_context_validate_cursor_iterators(tc);
599 event_context->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
601 switch (event->type) {
602 case GDK_BUTTON_PRESS:
603 if (event->button.button == 1 && !event_context->space_panning) {
605 if (Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false) {
606 return TRUE;
607 }
609 // save drag origin
610 event_context->xp = (gint) event->button.x;
611 event_context->yp = (gint) event->button.y;
612 event_context->within_tolerance = true;
614 NR::Point const button_pt(event->button.x, event->button.y);
615 tc->p0 = desktop->w2d(button_pt);
616 Inkscape::Rubberband::get()->start(desktop, tc->p0);
617 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
618 GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
619 GDK_POINTER_MOTION_MASK,
620 NULL, event->button.time);
621 tc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
622 tc->creating = 1;
624 /* Processed */
625 return TRUE;
626 }
627 break;
628 case GDK_MOTION_NOTIFY:
629 if (tc->over_text) {
630 tc->over_text = 0;
631 // update cursor and statusbar: we are not over a text object now
632 event_context->cursor_shape = cursor_text_xpm;
633 event_context->hot_x = 7;
634 event_context->hot_y = 7;
635 sp_event_context_update_cursor(event_context);
636 desktop->event_context->defaultMessageContext()->clear();
637 }
639 if (tc->creating && event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
640 if ( event_context->within_tolerance
641 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
642 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
643 break; // do not drag if we're within tolerance from origin
644 }
645 // Once the user has moved farther than tolerance from the original location
646 // (indicating they intend to draw, not click), then always process the
647 // motion notify coordinates as given (no snapping back to origin)
648 event_context->within_tolerance = false;
650 NR::Point const motion_pt(event->motion.x, event->motion.y);
651 NR::Point const p = desktop->w2d(motion_pt);
653 Inkscape::Rubberband::get()->move(p);
654 gobble_motion_events(GDK_BUTTON1_MASK);
656 // status text
657 GString *xs = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::X]), desktop->namedview->getDefaultMetric());
658 GString *ys = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::Y]), desktop->namedview->getDefaultMetric());
659 event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("<b>Flowed text frame</b>: %s × %s"), xs->str, ys->str);
660 g_string_free(xs, FALSE);
661 g_string_free(ys, FALSE);
663 }
664 break;
665 case GDK_BUTTON_RELEASE:
666 if (event->button.button == 1 && !event_context->space_panning) {
668 if (tc->grabbed) {
669 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
670 tc->grabbed = NULL;
671 }
673 Inkscape::Rubberband::get()->stop();
675 if (tc->creating && event_context->within_tolerance) {
676 /* Button 1, set X & Y & new item */
677 sp_desktop_selection(desktop)->clear();
678 NR::Point dtp = desktop->w2d(NR::Point(event->button.x, event->button.y));
679 tc->pdoc = sp_desktop_dt2root_xy_point(desktop, dtp);
681 tc->show = TRUE;
682 tc->phase = 1;
683 tc->nascent_object = 1; // new object was just created
685 /* Cursor */
686 sp_canvas_item_show(tc->cursor);
687 // Cursor height is defined by the new text object's font size; it needs to be set
688 // articifically here, for the text object does not exist yet:
689 double cursor_height = sp_desktop_get_font_size_tool(desktop);
690 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), dtp, dtp + NR::Point(0, cursor_height));
691 event_context->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line.")); // FIXME:: this is a copy of a string from _update_cursor below, do not desync
693 event_context->within_tolerance = false;
694 } else if (tc->creating) {
695 NR::Point const button_pt(event->button.x, event->button.y);
696 NR::Point p1 = desktop->w2d(button_pt);
697 double cursor_height = sp_desktop_get_font_size_tool(desktop);
698 if (fabs(p1[NR::Y] - tc->p0[NR::Y]) > cursor_height) {
699 // otherwise even one line won't fit; most probably a slip of hand (even if bigger than tolerance)
700 SPItem *ft = create_flowtext_with_internal_frame (desktop, tc->p0, p1);
701 /* Set style */
702 sp_desktop_apply_style_tool(desktop, SP_OBJECT_REPR(ft), "tools.text", true);
703 sp_desktop_selection(desktop)->set(ft);
704 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Flowed text is created."));
705 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
706 _("Create flowed text"));
707 } else {
708 desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("The frame is <b>too small</b> for the current font size. Flowed text not created."));
709 }
710 }
711 tc->creating = false;
712 return TRUE;
713 }
714 break;
715 case GDK_KEY_PRESS: {
716 guint const group0_keyval = get_group0_keyval(&event->key);
718 if (group0_keyval == GDK_KP_Add ||
719 group0_keyval == GDK_KP_Subtract) {
720 if (!(event->key.state & GDK_MOD2_MASK)) // mod2 is NumLock; if on, type +/- keys
721 break; // otherwise pass on keypad +/- so they can zoom
722 }
724 if ((tc->text) || (tc->nascent_object)) {
725 // there is an active text object in this context, or a new object was just created
727 if (tc->unimode || !tc->imc
728 || (MOD__CTRL && MOD__SHIFT) // input methods tend to steal this for unimode,
729 // but we have our own so make sure they don't swallow it
730 || !gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
731 //IM did not consume the key, or we're in unimode
733 if (!MOD__CTRL_ONLY && tc->unimode) {
734 /* TODO: ISO 14755 (section 3 Definitions) says that we should also
735 accept the first 6 characters of alphabets other than the latin
736 alphabet "if the Latin alphabet is not used". The below is also
737 reasonable (viz. hope that the user's keyboard includes latin
738 characters and force latin interpretation -- just as we do for our
739 keyboard shortcuts), but differs from the ISO 14755
740 recommendation. */
741 switch (group0_keyval) {
742 case GDK_space:
743 case GDK_KP_Space: {
744 if (tc->unipos) {
745 insert_uni_char(tc);
746 }
747 /* Stay in unimode. */
748 show_curr_uni_char(tc);
749 return TRUE;
750 }
752 case GDK_BackSpace: {
753 g_return_val_if_fail(tc->unipos < sizeof(tc->uni), TRUE);
754 if (tc->unipos) {
755 tc->uni[--tc->unipos] = '\0';
756 }
757 show_curr_uni_char(tc);
758 return TRUE;
759 }
761 case GDK_Return:
762 case GDK_KP_Enter: {
763 if (tc->unipos) {
764 insert_uni_char(tc);
765 }
766 /* Exit unimode. */
767 tc->unimode = false;
768 event_context->defaultMessageContext()->clear();
769 return TRUE;
770 }
772 case GDK_Escape: {
773 // Cancel unimode.
774 tc->unimode = false;
775 gtk_im_context_reset(tc->imc);
776 event_context->defaultMessageContext()->clear();
777 return TRUE;
778 }
780 case GDK_Shift_L:
781 case GDK_Shift_R:
782 break;
784 default: {
785 if (g_ascii_isxdigit(group0_keyval)) {
786 g_return_val_if_fail(tc->unipos < sizeof(tc->uni) - 1, TRUE);
787 tc->uni[tc->unipos++] = group0_keyval;
788 tc->uni[tc->unipos] = '\0';
789 if (tc->unipos == 8) {
790 /* This behaviour is partly to allow us to continue to
791 use a fixed-length buffer for tc->uni. Reason for
792 choosing the number 8 is that it's the length of
793 ``canonical form'' mentioned in the ISO 14755 spec.
794 An advantage over choosing 6 is that it allows using
795 backspace for typos & misremembering when entering a
796 6-digit number. */
797 insert_uni_char(tc);
798 }
799 show_curr_uni_char(tc);
800 return TRUE;
801 } else {
802 /* The intent is to ignore but consume characters that could be
803 typos for hex digits. Gtk seems to ignore & consume all
804 non-hex-digits, and we do similar here. Though note that some
805 shortcuts (like keypad +/- for zoom) get processed before
806 reaching this code. */
807 return TRUE;
808 }
809 }
810 }
811 }
813 bool (Inkscape::Text::Layout::iterator::*cursor_movement_operator)() = NULL;
815 /* Neither unimode nor IM consumed key; process text tool shortcuts */
816 switch (group0_keyval) {
817 case GDK_x:
818 case GDK_X:
819 if (MOD__ALT_ONLY) {
820 desktop->setToolboxFocusTo ("altx-text");
821 return TRUE;
822 }
823 break;
824 case GDK_space:
825 if (MOD__CTRL_ONLY) {
826 /* No-break space */
827 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
828 sp_text_context_setup_text(tc);
829 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
830 }
831 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, "\302\240");
832 sp_text_context_update_cursor(tc);
833 sp_text_context_update_text_selection(tc);
834 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("No-break space"));
835 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
836 _("Insert no-break space"));
837 return TRUE;
838 }
839 break;
840 case GDK_U:
841 case GDK_u:
842 if (MOD__CTRL_ONLY || (MOD__CTRL && MOD__SHIFT)) {
843 if (tc->unimode) {
844 tc->unimode = false;
845 event_context->defaultMessageContext()->clear();
846 } else {
847 tc->unimode = true;
848 tc->unipos = 0;
849 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));
850 }
851 if (tc->imc) {
852 gtk_im_context_reset(tc->imc);
853 }
854 return TRUE;
855 }
856 break;
857 case GDK_B:
858 case GDK_b:
859 if (MOD__CTRL_ONLY && tc->text) {
860 SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
861 SPCSSAttr *css = sp_repr_css_attr_new();
862 if (style->font_weight.computed == SP_CSS_FONT_WEIGHT_NORMAL
863 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_100
864 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_200
865 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_300
866 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_400)
867 sp_repr_css_set_property(css, "font-weight", "bold");
868 else
869 sp_repr_css_set_property(css, "font-weight", "normal");
870 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
871 sp_repr_css_attr_unref(css);
872 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
873 _("Make bold"));
874 sp_text_context_update_cursor(tc);
875 sp_text_context_update_text_selection(tc);
876 return TRUE;
877 }
878 break;
879 case GDK_I:
880 case GDK_i:
881 if (MOD__CTRL_ONLY && tc->text) {
882 SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
883 SPCSSAttr *css = sp_repr_css_attr_new();
884 if (style->font_style.computed == SP_CSS_FONT_STYLE_NORMAL)
885 sp_repr_css_set_property(css, "font-style", "italic");
886 else
887 sp_repr_css_set_property(css, "font-style", "normal");
888 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
889 sp_repr_css_attr_unref(css);
890 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
891 _("Make italic"));
892 sp_text_context_update_cursor(tc);
893 sp_text_context_update_text_selection(tc);
894 return TRUE;
895 }
896 break;
898 case GDK_A:
899 case GDK_a:
900 if (MOD__CTRL_ONLY && tc->text) {
901 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
902 if (layout) {
903 tc->text_sel_start = layout->begin();
904 tc->text_sel_end = layout->end();
905 sp_text_context_update_cursor(tc);
906 sp_text_context_update_text_selection(tc);
907 return TRUE;
908 }
909 }
910 break;
912 case GDK_Return:
913 case GDK_KP_Enter:
914 {
915 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
916 sp_text_context_setup_text(tc);
917 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
918 }
920 iterator_pair enter_pair;
921 bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, enter_pair);
922 tc->text_sel_start = tc->text_sel_end = enter_pair.first;
924 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
926 sp_text_context_update_cursor(tc);
927 sp_text_context_update_text_selection(tc);
928 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
929 _("New line"));
930 return TRUE;
931 }
932 case GDK_BackSpace:
933 if (tc->text) { // if nascent_object, do nothing, but return TRUE; same for all other delete and move keys
935 bool noSelection = false;
937 if (tc->text_sel_start == tc->text_sel_end) {
938 tc->text_sel_start.prevCursorPosition();
939 noSelection = true;
940 }
942 iterator_pair bspace_pair;
943 bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, bspace_pair);
945 if (noSelection) {
946 if (success) {
947 tc->text_sel_start = tc->text_sel_end = bspace_pair.first;
948 } else { // nothing deleted
949 tc->text_sel_start = tc->text_sel_end = bspace_pair.second;
950 }
951 } else {
952 if (success) {
953 tc->text_sel_start = tc->text_sel_end = bspace_pair.first;
954 } else { // nothing deleted
955 tc->text_sel_start = bspace_pair.first;
956 tc->text_sel_end = bspace_pair.second;
957 }
958 }
960 sp_text_context_update_cursor(tc);
961 sp_text_context_update_text_selection(tc);
962 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
963 _("Backspace"));
964 }
965 return TRUE;
966 case GDK_Delete:
967 case GDK_KP_Delete:
968 if (tc->text) {
969 bool noSelection = false;
971 if (tc->text_sel_start == tc->text_sel_end) {
972 tc->text_sel_end.nextCursorPosition();
973 noSelection = true;
974 }
976 iterator_pair del_pair;
977 bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, del_pair);
979 if (noSelection) {
980 tc->text_sel_start = tc->text_sel_end = del_pair.first;
981 } else {
982 if (success) {
983 tc->text_sel_start = tc->text_sel_end = del_pair.first;
984 } else { // nothing deleted
985 tc->text_sel_start = del_pair.first;
986 tc->text_sel_end = del_pair.second;
987 }
988 }
991 sp_text_context_update_cursor(tc);
992 sp_text_context_update_text_selection(tc);
993 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
994 _("Delete"));
995 }
996 return TRUE;
997 case GDK_Left:
998 case GDK_KP_Left:
999 case GDK_KP_4:
1000 if (tc->text) {
1001 if (MOD__ALT) {
1002 if (MOD__SHIFT)
1003 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(-10, 0));
1004 else
1005 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(-1, 0));
1006 sp_text_context_update_cursor(tc);
1007 sp_text_context_update_text_selection(tc);
1008 sp_document_maybe_done(sp_desktop_document(desktop), "kern:left", SP_VERB_CONTEXT_TEXT,
1009 _("Kern to the left"));
1010 } else {
1011 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorLeftWithControl
1012 : &Inkscape::Text::Layout::iterator::cursorLeft;
1013 break;
1014 }
1015 }
1016 return TRUE;
1017 case GDK_Right:
1018 case GDK_KP_Right:
1019 case GDK_KP_6:
1020 if (tc->text) {
1021 if (MOD__ALT) {
1022 if (MOD__SHIFT)
1023 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(10, 0));
1024 else
1025 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(1, 0));
1026 sp_text_context_update_cursor(tc);
1027 sp_text_context_update_text_selection(tc);
1028 sp_document_maybe_done(sp_desktop_document(desktop), "kern:right", SP_VERB_CONTEXT_TEXT,
1029 _("Kern to the right"));
1030 } else {
1031 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorRightWithControl
1032 : &Inkscape::Text::Layout::iterator::cursorRight;
1033 break;
1034 }
1035 }
1036 return TRUE;
1037 case GDK_Up:
1038 case GDK_KP_Up:
1039 case GDK_KP_8:
1040 if (tc->text) {
1041 if (MOD__ALT) {
1042 if (MOD__SHIFT)
1043 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, -10));
1044 else
1045 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, -1));
1046 sp_text_context_update_cursor(tc);
1047 sp_text_context_update_text_selection(tc);
1048 sp_document_maybe_done(sp_desktop_document(desktop), "kern:up", SP_VERB_CONTEXT_TEXT,
1049 _("Kern up"));
1051 } else {
1052 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorUpWithControl
1053 : &Inkscape::Text::Layout::iterator::cursorUp;
1054 break;
1055 }
1056 }
1057 return TRUE;
1058 case GDK_Down:
1059 case GDK_KP_Down:
1060 case GDK_KP_2:
1061 if (tc->text) {
1062 if (MOD__ALT) {
1063 if (MOD__SHIFT)
1064 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, 10));
1065 else
1066 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, 1));
1067 sp_text_context_update_cursor(tc);
1068 sp_text_context_update_text_selection(tc);
1069 sp_document_maybe_done(sp_desktop_document(desktop), "kern:down", SP_VERB_CONTEXT_TEXT,
1070 _("Kern down"));
1072 } else {
1073 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorDownWithControl
1074 : &Inkscape::Text::Layout::iterator::cursorDown;
1075 break;
1076 }
1077 }
1078 return TRUE;
1079 case GDK_Home:
1080 case GDK_KP_Home:
1081 if (tc->text) {
1082 if (MOD__CTRL)
1083 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfShape;
1084 else
1085 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfLine;
1086 break;
1087 }
1088 return TRUE;
1089 case GDK_End:
1090 case GDK_KP_End:
1091 if (tc->text) {
1092 if (MOD__CTRL)
1093 cursor_movement_operator = &Inkscape::Text::Layout::iterator::nextStartOfShape;
1094 else
1095 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisEndOfLine;
1096 break;
1097 }
1098 return TRUE;
1099 case GDK_Escape:
1100 if (tc->creating) {
1101 tc->creating = 0;
1102 if (tc->grabbed) {
1103 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1104 tc->grabbed = NULL;
1105 }
1106 Inkscape::Rubberband::get()->stop();
1107 } else {
1108 sp_desktop_selection(desktop)->clear();
1109 }
1110 tc->nascent_object = FALSE;
1111 return TRUE;
1112 case GDK_bracketleft:
1113 if (tc->text) {
1114 if (MOD__ALT || MOD__CTRL) {
1115 if (MOD__ALT) {
1116 if (MOD__SHIFT) {
1117 // FIXME: alt+shift+[] does not work, don't know why
1118 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);
1119 } else {
1120 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);
1121 }
1122 } else {
1123 sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -90);
1124 }
1125 sp_document_maybe_done(sp_desktop_document(desktop), "textrot:ccw", SP_VERB_CONTEXT_TEXT,
1126 _("Rotate counterclockwise"));
1127 sp_text_context_update_cursor(tc);
1128 sp_text_context_update_text_selection(tc);
1129 return TRUE;
1130 }
1131 }
1132 break;
1133 case GDK_bracketright:
1134 if (tc->text) {
1135 if (MOD__ALT || MOD__CTRL) {
1136 if (MOD__ALT) {
1137 if (MOD__SHIFT) {
1138 // FIXME: alt+shift+[] does not work, don't know why
1139 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);
1140 } else {
1141 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);
1142 }
1143 } else {
1144 sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 90);
1145 }
1146 sp_document_maybe_done(sp_desktop_document(desktop), "textrot:cw", SP_VERB_CONTEXT_TEXT,
1147 _("Rotate clockwise"));
1148 sp_text_context_update_cursor(tc);
1149 sp_text_context_update_text_selection(tc);
1150 return TRUE;
1151 }
1152 }
1153 break;
1154 case GDK_less:
1155 case GDK_comma:
1156 if (tc->text) {
1157 if (MOD__ALT) {
1158 if (MOD__CTRL) {
1159 if (MOD__SHIFT)
1160 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);
1161 else
1162 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);
1163 sp_document_maybe_done(sp_desktop_document(desktop), "linespacing:dec", SP_VERB_CONTEXT_TEXT,
1164 _("Contract line spacing"));
1166 } else {
1167 if (MOD__SHIFT)
1168 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);
1169 else
1170 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);
1171 sp_document_maybe_done(sp_desktop_document(desktop), "letterspacing:dec", SP_VERB_CONTEXT_TEXT,
1172 _("Contract letter spacing"));
1174 }
1175 sp_text_context_update_cursor(tc);
1176 sp_text_context_update_text_selection(tc);
1177 return TRUE;
1178 }
1179 }
1180 break;
1181 case GDK_greater:
1182 case GDK_period:
1183 if (tc->text) {
1184 if (MOD__ALT) {
1185 if (MOD__CTRL) {
1186 if (MOD__SHIFT)
1187 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);
1188 else
1189 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);
1190 sp_document_maybe_done(sp_desktop_document(desktop), "linespacing:inc", SP_VERB_CONTEXT_TEXT,
1191 _("Expand line spacing"));
1193 } else {
1194 if (MOD__SHIFT)
1195 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);
1196 else
1197 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);
1198 sp_document_maybe_done(sp_desktop_document(desktop), "letterspacing:inc", SP_VERB_CONTEXT_TEXT,
1199 _("Expand letter spacing"));
1201 }
1202 sp_text_context_update_cursor(tc);
1203 sp_text_context_update_text_selection(tc);
1204 return TRUE;
1205 }
1206 }
1207 break;
1208 default:
1209 break;
1210 }
1212 if (cursor_movement_operator) {
1213 Inkscape::Text::Layout::iterator old_start = tc->text_sel_start;
1214 Inkscape::Text::Layout::iterator old_end = tc->text_sel_end;
1215 (tc->text_sel_end.*cursor_movement_operator)();
1216 if (!MOD__SHIFT)
1217 tc->text_sel_start = tc->text_sel_end;
1218 if (old_start != tc->text_sel_start || old_end != tc->text_sel_end) {
1219 sp_text_context_update_cursor(tc);
1220 sp_text_context_update_text_selection(tc);
1221 }
1222 return TRUE;
1223 }
1225 } else return TRUE; // return the "I took care of it" value if it was consumed by the IM
1226 } else { // do nothing if there's no object to type in - the key will be sent to parent context,
1227 // except up/down that are swallowed to prevent the zoom field from activation
1228 if ((group0_keyval == GDK_Up ||
1229 group0_keyval == GDK_Down ||
1230 group0_keyval == GDK_KP_Up ||
1231 group0_keyval == GDK_KP_Down )
1232 && !MOD__CTRL_ONLY) {
1233 return TRUE;
1234 } else if (group0_keyval == GDK_Escape) { // cancel rubberband
1235 if (tc->creating) {
1236 tc->creating = 0;
1237 if (tc->grabbed) {
1238 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1239 tc->grabbed = NULL;
1240 }
1241 Inkscape::Rubberband::get()->stop();
1242 }
1243 }
1244 }
1245 break;
1246 }
1248 case GDK_KEY_RELEASE:
1249 if (!tc->unimode && tc->imc && gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
1250 return TRUE;
1251 }
1252 break;
1253 default:
1254 break;
1255 }
1257 // if nobody consumed it so far
1258 if (((SPEventContextClass *) parent_class)->root_handler) { // and there's a handler in parent context,
1259 return ((SPEventContextClass *) parent_class)->root_handler(event_context, event); // send event to parent
1260 } else {
1261 return FALSE; // return "I did nothing" value so that global shortcuts can be activated
1262 }
1263 }
1265 /**
1266 Attempts to paste system clipboard into the currently edited text, returns true on success
1267 */
1268 bool
1269 sp_text_paste_inline(SPEventContext *ec)
1270 {
1271 if (!SP_IS_TEXT_CONTEXT(ec))
1272 return false;
1274 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1276 if ((tc->text) || (tc->nascent_object)) {
1277 // there is an active text object in this context, or a new object was just created
1279 Glib::RefPtr<Gtk::Clipboard> refClipboard = Gtk::Clipboard::get();
1280 Glib::ustring const text = refClipboard->wait_for_text();
1282 if (!text.empty()) {
1284 if (!tc->text) { // create text if none (i.e. if nascent_object)
1285 sp_text_context_setup_text(tc);
1286 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1287 }
1289 // using indices is slow in ustrings. Whatever.
1290 Glib::ustring::size_type begin = 0;
1291 for ( ; ; ) {
1292 Glib::ustring::size_type end = text.find('\n', begin);
1293 if (end == Glib::ustring::npos) {
1294 if (begin != text.length())
1295 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, text.substr(begin).c_str());
1296 break;
1297 }
1298 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, text.substr(begin, end - begin).c_str());
1299 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
1300 begin = end + 1;
1301 }
1302 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
1303 _("Paste text"));
1305 return true;
1306 }
1307 } // FIXME: else create and select a new object under cursor!
1309 return false;
1310 }
1312 /**
1313 Gets the raw characters that comprise the currently selected text, converting line
1314 breaks into lf characters.
1315 */
1316 Glib::ustring
1317 sp_text_get_selected_text(SPEventContext const *ec)
1318 {
1319 if (!SP_IS_TEXT_CONTEXT(ec))
1320 return "";
1321 SPTextContext const *tc = SP_TEXT_CONTEXT(ec);
1322 if (tc->text == NULL)
1323 return "";
1325 return sp_te_get_string_multiline(tc->text, tc->text_sel_start, tc->text_sel_end);
1326 }
1328 /**
1329 Deletes the currently selected characters. Returns false if there is no
1330 text selection currently.
1331 */
1332 bool sp_text_delete_selection(SPEventContext *ec)
1333 {
1334 if (!SP_IS_TEXT_CONTEXT(ec))
1335 return false;
1336 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1337 if (tc->text == NULL)
1338 return false;
1340 if (tc->text_sel_start == tc->text_sel_end)
1341 return false;
1343 iterator_pair pair;
1344 bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, pair);
1347 if (success) {
1348 tc->text_sel_start = tc->text_sel_end = pair.first;
1349 } else { // nothing deleted
1350 tc->text_sel_start = pair.first;
1351 tc->text_sel_end = pair.second;
1352 }
1354 sp_text_context_update_cursor(tc);
1355 sp_text_context_update_text_selection(tc);
1357 return true;
1358 }
1360 /**
1361 * \param selection Should not be NULL.
1362 */
1363 static void
1364 sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc)
1365 {
1366 g_assert(selection != NULL);
1368 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
1370 if (ec->shape_knot_holder) { // destroy knotholder
1371 sp_knot_holder_destroy(ec->shape_knot_holder);
1372 ec->shape_knot_holder = NULL;
1373 }
1375 if (ec->shape_repr) { // remove old listener
1376 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
1377 Inkscape::GC::release(ec->shape_repr);
1378 ec->shape_repr = 0;
1379 }
1381 SPItem *item = selection->singleItem();
1382 if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
1383 ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
1384 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
1385 if (shape_repr) {
1386 ec->shape_repr = shape_repr;
1387 Inkscape::GC::anchor(shape_repr);
1388 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
1389 }
1390 }
1392 if (tc->text && (item != tc->text)) {
1393 sp_text_context_forget_text(tc);
1394 }
1395 tc->text = NULL;
1397 if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) {
1398 tc->text = item;
1399 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1400 if (layout)
1401 tc->text_sel_start = tc->text_sel_end = layout->end();
1402 } else {
1403 tc->text = NULL;
1404 }
1406 // we update cursor without scrolling, because this position may not be final;
1407 // item_handler moves cusros to the point of click immediately
1408 sp_text_context_update_cursor(tc, false);
1409 sp_text_context_update_text_selection(tc);
1410 }
1412 static void
1413 sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc)
1414 {
1415 sp_text_context_update_cursor(tc);
1416 sp_text_context_update_text_selection(tc);
1417 }
1419 static bool
1420 sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc)
1421 {
1422 if (tc->text == NULL)
1423 return false;
1424 if (tc->text_sel_start == tc->text_sel_end)
1425 return false; // will get picked up by the parent and applied to the whole text object
1427 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
1428 sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_CONTEXT_TEXT,
1429 _("Set text style"));
1430 sp_text_context_update_cursor(tc);
1431 sp_text_context_update_text_selection(tc);
1433 return true;
1434 }
1436 static int
1437 sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc)
1438 {
1439 if (tc->text == NULL)
1440 return QUERY_STYLE_NOTHING;
1441 const Inkscape::Text::Layout *layout = te_get_layout(tc->text);
1442 if (layout == NULL)
1443 return QUERY_STYLE_NOTHING;
1444 sp_text_context_validate_cursor_iterators(tc);
1446 GSList *styles_list = NULL;
1448 Inkscape::Text::Layout::iterator begin_it, end_it;
1449 if (tc->text_sel_start < tc->text_sel_end) {
1450 begin_it = tc->text_sel_start;
1451 end_it = tc->text_sel_end;
1452 } else {
1453 begin_it = tc->text_sel_end;
1454 end_it = tc->text_sel_start;
1455 }
1456 if (begin_it == end_it)
1457 if (!begin_it.prevCharacter())
1458 end_it.nextCharacter();
1459 for (Inkscape::Text::Layout::iterator it = begin_it ; it < end_it ; it.nextStartOfSpan()) {
1460 SPObject const *pos_obj = 0;
1461 void *rawptr = 0;
1462 layout->getSourceOfCharacter(it, &rawptr);
1463 pos_obj = SP_OBJECT(rawptr);
1464 if (pos_obj == 0) continue;
1465 while (SP_IS_STRING(pos_obj) && SP_OBJECT_PARENT(pos_obj)) {
1466 pos_obj = SP_OBJECT_PARENT(pos_obj); // SPStrings don't have style
1467 }
1468 styles_list = g_slist_prepend(styles_list, (gpointer)pos_obj);
1469 }
1471 int result = sp_desktop_query_style_from_list (styles_list, style, property);
1473 g_slist_free(styles_list);
1474 return result;
1475 }
1477 static void
1478 sp_text_context_validate_cursor_iterators(SPTextContext *tc)
1479 {
1480 if (tc->text == NULL)
1481 return;
1482 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1483 if (layout) { // undo can change the text length without us knowing it
1484 layout->validateIterator(&tc->text_sel_start);
1485 layout->validateIterator(&tc->text_sel_end);
1486 }
1487 }
1489 static void
1490 sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see)
1491 {
1492 GdkRectangle im_cursor = { 0, 0, 1, 1 };
1494 // due to interruptible display, tc may already be destroyed during a display update before
1495 // the cursor update (can't do both atomically, alas)
1496 if (!tc->desktop) return;
1498 if (tc->text) {
1499 NR::Point p0, p1;
1500 sp_te_get_cursor_coords(tc->text, tc->text_sel_end, p0, p1);
1501 NR::Point const d0 = p0 * sp_item_i2d_affine(SP_ITEM(tc->text));
1502 NR::Point const d1 = p1 * sp_item_i2d_affine(SP_ITEM(tc->text));
1504 // scroll to show cursor
1505 if (scroll_to_see) {
1506 NR::Point const dm = (d0 + d1) / 2;
1507 // unlike mouse moves, here we must scroll all the way at first shot, so we override the autoscrollspeed
1508 SP_EVENT_CONTEXT(tc)->desktop->scroll_to_point(&dm, 1.0);
1509 }
1511 sp_canvas_item_show(tc->cursor);
1512 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), d0, d1);
1514 /* fixme: ... need another transformation to get canvas widget coordinate space? */
1515 im_cursor.x = (int) floor(d0[NR::X]);
1516 im_cursor.y = (int) floor(d0[NR::Y]);
1517 im_cursor.width = (int) floor(d1[NR::X]) - im_cursor.x;
1518 im_cursor.height = (int) floor(d1[NR::Y]) - im_cursor.y;
1520 tc->show = TRUE;
1521 tc->phase = 1;
1523 if (SP_IS_FLOWTEXT(tc->text)) {
1524 SPItem *frame = SP_FLOWTEXT(tc->text)->get_frame (NULL); // first frame only
1525 if (frame) {
1526 sp_canvas_item_show(tc->frame);
1527 NR::Maybe<NR::Rect> frame_bbox = sp_item_bbox_desktop(frame);
1528 if (frame_bbox) {
1529 SP_CTRLRECT(tc->frame)->setRectangle(*frame_bbox);
1530 }
1531 }
1532 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type flowed text; <b>Enter</b> to start new paragraph."));
1533 } else {
1534 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line."));
1535 }
1537 } else {
1538 sp_canvas_item_hide(tc->cursor);
1539 sp_canvas_item_hide(tc->frame);
1540 tc->show = FALSE;
1541 if (!tc->nascent_object) {
1542 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to select or create text, <b>drag</b> to create flowed text; then type.")); // FIXME: this is a copy of string from tools-switch, do not desync
1543 }
1544 }
1546 if (tc->imc) {
1547 gtk_im_context_set_cursor_location(tc->imc, &im_cursor);
1548 }
1549 SP_EVENT_CONTEXT(tc)->desktop->emitToolSubselectionChanged((gpointer)tc);
1550 }
1552 static void sp_text_context_update_text_selection(SPTextContext *tc)
1553 {
1554 // due to interruptible display, tc may already be destroyed during a display update before
1555 // the selection update (can't do both atomically, alas)
1556 if (!tc->desktop) return;
1558 for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ; it != tc->text_selection_quads.end() ; it++) {
1559 sp_canvas_item_hide(*it);
1560 gtk_object_destroy(*it);
1561 }
1562 tc->text_selection_quads.clear();
1564 std::vector<NR::Point> quads;
1565 if (tc->text != NULL)
1566 quads = sp_te_create_selection_quads(tc->text, tc->text_sel_start, tc->text_sel_end, sp_item_i2d_affine(tc->text));
1567 for (unsigned i = 0 ; i < quads.size() ; i += 4) {
1568 SPCanvasItem *quad_canvasitem;
1569 quad_canvasitem = sp_canvas_item_new(sp_desktop_controls(tc->desktop), SP_TYPE_CTRLQUADR, NULL);
1570 sp_ctrlquadr_set_rgba32(SP_CTRLQUADR(quad_canvasitem), 0x000000ff);
1571 sp_ctrlquadr_set_coords(SP_CTRLQUADR(quad_canvasitem), quads[i], quads[i+1], quads[i+2], quads[i+3]);
1572 sp_canvas_item_show(quad_canvasitem);
1573 tc->text_selection_quads.push_back(quad_canvasitem);
1574 }
1575 }
1577 static gint
1578 sp_text_context_timeout(SPTextContext *tc)
1579 {
1580 if (tc->show) {
1581 if (tc->phase) {
1582 tc->phase = 0;
1583 sp_canvas_item_hide(tc->cursor);
1584 } else {
1585 tc->phase = 1;
1586 sp_canvas_item_show(tc->cursor);
1587 }
1588 }
1590 return TRUE;
1591 }
1593 static void
1594 sp_text_context_forget_text(SPTextContext *tc)
1595 {
1596 if (! tc->text) return;
1597 SPItem *ti = tc->text;
1598 /* We have to set it to zero,
1599 * or selection changed signal messes everything up */
1600 tc->text = NULL;
1601 if ((SP_IS_TEXT(ti) || SP_IS_FLOWTEXT(ti)) && sp_te_input_is_empty(ti)) {
1602 Inkscape::XML::Node *text_repr=SP_OBJECT_REPR(ti);
1603 // the repr may already have been unparented
1604 // if we were called e.g. as the result of
1605 // an undo or the element being removed from
1606 // the XML editor
1607 if ( text_repr && sp_repr_parent(text_repr) ) {
1608 sp_repr_unparent(text_repr);
1609 sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_CONTEXT_TEXT,
1610 _("Remove empty text"));
1611 }
1612 }
1613 }
1615 gint
1616 sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
1617 {
1618 gtk_im_context_focus_in(tc->imc);
1619 return FALSE;
1620 }
1622 gint
1623 sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
1624 {
1625 gtk_im_context_focus_out(tc->imc);
1626 return FALSE;
1627 }
1629 static void
1630 sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc)
1631 {
1632 if (!tc->text) {
1633 sp_text_context_setup_text(tc);
1634 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1635 }
1637 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, string);
1638 sp_text_context_update_cursor(tc);
1639 sp_text_context_update_text_selection(tc);
1641 sp_document_done(SP_OBJECT_DOCUMENT(tc->text), SP_VERB_CONTEXT_TEXT,
1642 _("Type text"));
1643 }
1646 /*
1647 Local Variables:
1648 mode:c++
1649 c-file-style:"stroustrup"
1650 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1651 indent-tabs-mode:nil
1652 fill-column:99
1653 End:
1654 */
1655 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :