f2dd4bf2ba72b2bef1f6cb8d723a3ddfc1378e00
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 *ec, SPItem *item, GdkEvent *event)
342 {
343 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
344 SPDesktop *desktop = ec->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) {
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(ec->desktop)->set(item_ungrouped);
358 if (tc->text) {
359 // find out click point in document coordinates
360 NR::Point p = ec->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) {
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) {
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 = ec->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 ret = TRUE;
433 break;
434 }
435 // find out item under mouse, disregarding groups
436 item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
437 if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
438 sp_canvas_item_show(tc->indicator);
439 NR::Maybe<NR::Rect> ibbox = sp_item_bbox_desktop(item_ungrouped);
440 if (ibbox) {
441 SP_CTRLRECT(tc->indicator)->setRectangle(*ibbox);
442 }
444 ec->cursor_shape = cursor_text_insert_xpm;
445 ec->hot_x = 7;
446 ec->hot_y = 10;
447 sp_event_context_update_cursor(ec);
448 sp_text_context_update_text_selection(tc);
450 if (SP_IS_TEXT (item_ungrouped)) {
451 desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the text, <b>drag</b> to select part of the text."));
452 } else {
453 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."));
454 }
456 tc->over_text = true;
458 ret = TRUE;
459 }
460 break;
461 default:
462 break;
463 }
465 if (!ret) {
466 if (((SPEventContextClass *) parent_class)->item_handler)
467 ret = ((SPEventContextClass *) parent_class)->item_handler(ec, item, event);
468 }
470 return ret;
471 }
473 static void
474 sp_text_context_setup_text(SPTextContext *tc)
475 {
476 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
478 /* Create <text> */
479 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DESKTOP(ec)->doc());
480 Inkscape::XML::Node *rtext = xml_doc->createElement("svg:text");
481 rtext->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
483 /* Set style */
484 sp_desktop_apply_style_tool(SP_EVENT_CONTEXT_DESKTOP(ec), rtext, "tools.text", true);
486 sp_repr_set_svg_double(rtext, "x", tc->pdoc[NR::X]);
487 sp_repr_set_svg_double(rtext, "y", tc->pdoc[NR::Y]);
489 /* Create <tspan> */
490 Inkscape::XML::Node *rtspan = xml_doc->createElement("svg:tspan");
491 rtspan->setAttribute("sodipodi:role", "line"); // otherwise, why bother creating the tspan?
492 rtext->addChild(rtspan, NULL);
493 Inkscape::GC::release(rtspan);
495 /* Create TEXT */
496 Inkscape::XML::Node *rstring = xml_doc->createTextNode("");
497 rtspan->addChild(rstring, NULL);
498 Inkscape::GC::release(rstring);
499 SPItem *text_item = SP_ITEM(ec->desktop->currentLayer()->appendChildRepr(rtext));
500 /* fixme: Is selection::changed really immediate? */
501 /* yes, it's immediate .. why does it matter? */
502 sp_desktop_selection(ec->desktop)->set(text_item);
503 Inkscape::GC::release(rtext);
504 text_item->transform = SP_ITEM(ec->desktop->currentRoot())->getRelativeTransform(ec->desktop->currentLayer());
505 text_item->updateRepr();
506 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
507 _("Create text"));
508 }
510 /**
511 * Insert the character indicated by tc.uni to replace the current selection,
512 * and reset tc.uni/tc.unipos to empty string.
513 *
514 * \pre tc.uni/tc.unipos non-empty.
515 */
516 static void
517 insert_uni_char(SPTextContext *const tc)
518 {
519 g_return_if_fail(tc->unipos
520 && tc->unipos < sizeof(tc->uni)
521 && tc->uni[tc->unipos] == '\0');
522 unsigned int uv;
523 sscanf(tc->uni, "%x", &uv);
524 tc->unipos = 0;
525 tc->uni[tc->unipos] = '\0';
527 if ( !g_unichar_isprint(static_cast<gunichar>(uv))
528 && !(g_unichar_validate(static_cast<gunichar>(uv)) && (g_unichar_type(static_cast<gunichar>(uv)) == G_UNICODE_PRIVATE_USE) ) ) {
529 // This may be due to bad input, so it goes to statusbar.
530 tc->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE,
531 _("Non-printable character"));
532 } else {
533 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
534 sp_text_context_setup_text(tc);
535 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
536 }
538 gchar u[10];
539 guint const len = g_unichar_to_utf8(uv, u);
540 u[len] = '\0';
542 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, u);
543 sp_text_context_update_cursor(tc);
544 sp_text_context_update_text_selection(tc);
545 sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_DIALOG_TRANSFORM,
546 _("Insert Unicode character"));
547 }
548 }
550 static void
551 hex_to_printable_utf8_buf(char const *const hex, char *utf8)
552 {
553 unsigned int uv;
554 sscanf(hex, "%x", &uv);
555 if (!g_unichar_isprint((gunichar) uv)) {
556 uv = 0xfffd;
557 }
558 guint const len = g_unichar_to_utf8(uv, utf8);
559 utf8[len] = '\0';
560 }
562 static void
563 show_curr_uni_char(SPTextContext *const tc)
564 {
565 g_return_if_fail(tc->unipos < sizeof(tc->uni)
566 && tc->uni[tc->unipos] == '\0');
567 if (tc->unipos) {
568 char utf8[10];
569 hex_to_printable_utf8_buf(tc->uni, utf8);
571 /* Status bar messages are in pango markup, so we need xml escaping. */
572 if (utf8[1] == '\0') {
573 switch(utf8[0]) {
574 case '<': strcpy(utf8, "<"); break;
575 case '>': strcpy(utf8, ">"); break;
576 case '&': strcpy(utf8, "&"); break;
577 default: break;
578 }
579 }
580 tc->defaultMessageContext()->setF(Inkscape::NORMAL_MESSAGE,
581 _("Unicode (<b>Enter</b> to finish): %s: %s"), tc->uni, utf8);
582 } else {
583 tc->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));
584 }
585 }
587 static gint
588 sp_text_context_root_handler(SPEventContext *const ec, GdkEvent *const event)
589 {
590 SPTextContext *const tc = SP_TEXT_CONTEXT(ec);
592 SPDesktop *desktop = ec->desktop;
594 sp_canvas_item_hide(tc->indicator);
596 sp_text_context_validate_cursor_iterators(tc);
598 ec->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
600 switch (event->type) {
601 case GDK_BUTTON_PRESS:
602 if (event->button.button == 1) {
604 SPDesktop *desktop = SP_EVENT_CONTEXT_DESKTOP(ec);
606 if (Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false) {
607 return TRUE;
608 }
610 // save drag origin
611 ec->xp = (gint) event->button.x;
612 ec->yp = (gint) event->button.y;
613 ec->within_tolerance = true;
615 NR::Point const button_pt(event->button.x, event->button.y);
616 tc->p0 = desktop->w2d(button_pt);
617 Inkscape::Rubberband::get()->start(desktop, tc->p0);
618 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
619 GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
620 GDK_POINTER_MOTION_MASK,
621 NULL, event->button.time);
622 tc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
623 tc->creating = 1;
625 /* Processed */
626 return TRUE;
627 }
628 break;
629 case GDK_MOTION_NOTIFY:
630 if (tc->over_text) {
631 tc->over_text = 0;
632 // update cursor and statusbar: we are not over a text object now
633 ec->cursor_shape = cursor_text_xpm;
634 ec->hot_x = 7;
635 ec->hot_y = 7;
636 sp_event_context_update_cursor(ec);
637 desktop->event_context->defaultMessageContext()->clear();
638 }
640 if (tc->creating && event->motion.state & GDK_BUTTON1_MASK) {
641 if ( ec->within_tolerance
642 && ( abs( (gint) event->motion.x - ec->xp ) < ec->tolerance )
643 && ( abs( (gint) event->motion.y - ec->yp ) < ec->tolerance ) ) {
644 break; // do not drag if we're within tolerance from origin
645 }
646 // Once the user has moved farther than tolerance from the original location
647 // (indicating they intend to draw, not click), then always process the
648 // motion notify coordinates as given (no snapping back to origin)
649 ec->within_tolerance = false;
651 NR::Point const motion_pt(event->motion.x, event->motion.y);
652 NR::Point const p = desktop->w2d(motion_pt);
654 Inkscape::Rubberband::get()->move(p);
655 gobble_motion_events(GDK_BUTTON1_MASK);
657 // status text
658 GString *xs = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::X]), desktop->namedview->getDefaultMetric());
659 GString *ys = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::Y]), desktop->namedview->getDefaultMetric());
660 ec->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("<b>Flowed text frame</b>: %s × %s"), xs->str, ys->str);
661 g_string_free(xs, FALSE);
662 g_string_free(ys, FALSE);
664 }
665 break;
666 case GDK_BUTTON_RELEASE:
667 if (event->button.button == 1) {
669 if (tc->grabbed) {
670 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
671 tc->grabbed = NULL;
672 }
674 Inkscape::Rubberband::get()->stop();
676 if (tc->creating && ec->within_tolerance) {
677 /* Button 1, set X & Y & new item */
678 sp_desktop_selection(desktop)->clear();
679 NR::Point dtp = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
680 tc->pdoc = sp_desktop_dt2root_xy_point(ec->desktop, dtp);
682 tc->show = TRUE;
683 tc->phase = 1;
684 tc->nascent_object = 1; // new object was just created
686 /* Cursor */
687 sp_canvas_item_show(tc->cursor);
688 // Cursor height is defined by the new text object's font size; it needs to be set
689 // articifically here, for the text object does not exist yet:
690 double cursor_height = sp_desktop_get_font_size_tool(ec->desktop);
691 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), dtp, dtp + NR::Point(0, cursor_height));
692 ec->_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
694 ec->within_tolerance = false;
695 } else if (tc->creating) {
696 NR::Point const button_pt(event->button.x, event->button.y);
697 NR::Point p1 = desktop->w2d(button_pt);
698 double cursor_height = sp_desktop_get_font_size_tool(ec->desktop);
699 if (fabs(p1[NR::Y] - tc->p0[NR::Y]) > cursor_height) {
700 // otherwise even one line won't fit; most probably a slip of hand (even if bigger than tolerance)
701 SPItem *ft = create_flowtext_with_internal_frame (desktop, tc->p0, p1);
702 /* Set style */
703 sp_desktop_apply_style_tool(SP_EVENT_CONTEXT_DESKTOP(ec), SP_OBJECT_REPR(ft), "tools.text", true);
704 sp_desktop_selection(desktop)->set(ft);
705 ec->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Flowed text is created."));
706 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
707 _("Create flowed text"));
708 } else {
709 ec->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("The frame is <b>too small</b> for the current font size. Flowed text not created."));
710 }
711 }
712 tc->creating = false;
713 return TRUE;
714 }
715 break;
716 case GDK_KEY_PRESS: {
717 guint const group0_keyval = get_group0_keyval(&event->key);
719 if (group0_keyval == GDK_KP_Add ||
720 group0_keyval == GDK_KP_Subtract) {
721 if (!(event->key.state & GDK_MOD2_MASK)) // mod2 is NumLock; if on, type +/- keys
722 break; // otherwise pass on keypad +/- so they can zoom
723 }
725 if ((tc->text) || (tc->nascent_object)) {
726 // there is an active text object in this context, or a new object was just created
728 if (tc->unimode || !tc->imc
729 || (MOD__CTRL && MOD__SHIFT) // input methods tend to steal this for unimode,
730 // but we have our own so make sure they don't swallow it
731 || !gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
732 //IM did not consume the key, or we're in unimode
734 if (!MOD__CTRL_ONLY && tc->unimode) {
735 /* TODO: ISO 14755 (section 3 Definitions) says that we should also
736 accept the first 6 characters of alphabets other than the latin
737 alphabet "if the Latin alphabet is not used". The below is also
738 reasonable (viz. hope that the user's keyboard includes latin
739 characters and force latin interpretation -- just as we do for our
740 keyboard shortcuts), but differs from the ISO 14755
741 recommendation. */
742 switch (group0_keyval) {
743 case GDK_space:
744 case GDK_KP_Space: {
745 if (tc->unipos) {
746 insert_uni_char(tc);
747 }
748 /* Stay in unimode. */
749 show_curr_uni_char(tc);
750 return TRUE;
751 }
753 case GDK_BackSpace: {
754 g_return_val_if_fail(tc->unipos < sizeof(tc->uni), TRUE);
755 if (tc->unipos) {
756 tc->uni[--tc->unipos] = '\0';
757 }
758 show_curr_uni_char(tc);
759 return TRUE;
760 }
762 case GDK_Return:
763 case GDK_KP_Enter: {
764 if (tc->unipos) {
765 insert_uni_char(tc);
766 }
767 /* Exit unimode. */
768 tc->unimode = false;
769 ec->defaultMessageContext()->clear();
770 return TRUE;
771 }
773 case GDK_Escape: {
774 // Cancel unimode.
775 tc->unimode = false;
776 gtk_im_context_reset(tc->imc);
777 ec->defaultMessageContext()->clear();
778 return TRUE;
779 }
781 case GDK_Shift_L:
782 case GDK_Shift_R:
783 break;
785 default: {
786 if (g_ascii_isxdigit(group0_keyval)) {
787 g_return_val_if_fail(tc->unipos < sizeof(tc->uni) - 1, TRUE);
788 tc->uni[tc->unipos++] = group0_keyval;
789 tc->uni[tc->unipos] = '\0';
790 if (tc->unipos == 8) {
791 /* This behaviour is partly to allow us to continue to
792 use a fixed-length buffer for tc->uni. Reason for
793 choosing the number 8 is that it's the length of
794 ``canonical form'' mentioned in the ISO 14755 spec.
795 An advantage over choosing 6 is that it allows using
796 backspace for typos & misremembering when entering a
797 6-digit number. */
798 insert_uni_char(tc);
799 }
800 show_curr_uni_char(tc);
801 return TRUE;
802 } else {
803 /* The intent is to ignore but consume characters that could be
804 typos for hex digits. Gtk seems to ignore & consume all
805 non-hex-digits, and we do similar here. Though note that some
806 shortcuts (like keypad +/- for zoom) get processed before
807 reaching this code. */
808 return TRUE;
809 }
810 }
811 }
812 }
814 bool (Inkscape::Text::Layout::iterator::*cursor_movement_operator)() = NULL;
816 /* Neither unimode nor IM consumed key; process text tool shortcuts */
817 switch (group0_keyval) {
818 case GDK_x:
819 case GDK_X:
820 if (MOD__ALT_ONLY) {
821 desktop->setToolboxFocusTo ("altx-text");
822 return TRUE;
823 }
824 break;
825 case GDK_space:
826 if (MOD__CTRL_ONLY) {
827 /* No-break space */
828 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
829 sp_text_context_setup_text(tc);
830 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
831 }
832 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, "\302\240");
833 sp_text_context_update_cursor(tc);
834 sp_text_context_update_text_selection(tc);
835 ec->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("No-break space"));
836 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
837 _("Insert no-break space"));
838 return TRUE;
839 }
840 break;
841 case GDK_U:
842 case GDK_u:
843 if (MOD__CTRL_ONLY || (MOD__CTRL && MOD__SHIFT)) {
844 if (tc->unimode) {
845 tc->unimode = false;
846 ec->defaultMessageContext()->clear();
847 } else {
848 tc->unimode = true;
849 tc->unipos = 0;
850 ec->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));
851 }
852 if (tc->imc) {
853 gtk_im_context_reset(tc->imc);
854 }
855 return TRUE;
856 }
857 break;
858 case GDK_B:
859 case GDK_b:
860 if (MOD__CTRL_ONLY && tc->text) {
861 SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
862 SPCSSAttr *css = sp_repr_css_attr_new();
863 if (style->font_weight.computed == SP_CSS_FONT_WEIGHT_NORMAL
864 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_100
865 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_200
866 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_300
867 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_400)
868 sp_repr_css_set_property(css, "font-weight", "bold");
869 else
870 sp_repr_css_set_property(css, "font-weight", "normal");
871 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
872 sp_repr_css_attr_unref(css);
873 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
874 _("Make bold"));
875 sp_text_context_update_cursor(tc);
876 sp_text_context_update_text_selection(tc);
877 return TRUE;
878 }
879 break;
880 case GDK_I:
881 case GDK_i:
882 if (MOD__CTRL_ONLY && tc->text) {
883 SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
884 SPCSSAttr *css = sp_repr_css_attr_new();
885 if (style->font_style.computed == SP_CSS_FONT_STYLE_NORMAL)
886 sp_repr_css_set_property(css, "font-style", "italic");
887 else
888 sp_repr_css_set_property(css, "font-style", "normal");
889 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
890 sp_repr_css_attr_unref(css);
891 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
892 _("Make italic"));
893 sp_text_context_update_cursor(tc);
894 sp_text_context_update_text_selection(tc);
895 return TRUE;
896 }
897 break;
899 case GDK_A:
900 case GDK_a:
901 if (MOD__CTRL_ONLY && tc->text) {
902 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
903 if (layout) {
904 tc->text_sel_start = layout->begin();
905 tc->text_sel_end = layout->end();
906 sp_text_context_update_cursor(tc);
907 sp_text_context_update_text_selection(tc);
908 return TRUE;
909 }
910 }
911 break;
913 case GDK_Return:
914 case GDK_KP_Enter:
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 }
919 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
920 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
921 sp_text_context_update_cursor(tc);
922 sp_text_context_update_text_selection(tc);
923 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
924 _("New line"));
925 return TRUE;
926 case GDK_BackSpace:
927 if (tc->text) { // if nascent_object, do nothing, but return TRUE; same for all other delete and move keys
928 if (tc->text_sel_start == tc->text_sel_end)
929 tc->text_sel_start.prevCursorPosition();
930 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
931 sp_text_context_update_cursor(tc);
932 sp_text_context_update_text_selection(tc);
933 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
934 _("Backspace"));
935 }
936 return TRUE;
937 case GDK_Delete:
938 case GDK_KP_Delete:
939 if (tc->text) {
940 if (tc->text_sel_start == tc->text_sel_end)
941 tc->text_sel_end.nextCursorPosition();
942 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
943 sp_text_context_update_cursor(tc);
944 sp_text_context_update_text_selection(tc);
945 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
946 _("Delete"));
947 }
948 return TRUE;
949 case GDK_Left:
950 case GDK_KP_Left:
951 case GDK_KP_4:
952 if (tc->text) {
953 if (MOD__ALT) {
954 if (MOD__SHIFT)
955 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(-10, 0));
956 else
957 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(-1, 0));
958 sp_text_context_update_cursor(tc);
959 sp_text_context_update_text_selection(tc);
960 sp_document_maybe_done(sp_desktop_document(ec->desktop), "kern:left", SP_VERB_CONTEXT_TEXT,
961 _("Kern to the left"));
962 } else {
963 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorLeftWithControl
964 : &Inkscape::Text::Layout::iterator::cursorLeft;
965 break;
966 }
967 }
968 return TRUE;
969 case GDK_Right:
970 case GDK_KP_Right:
971 case GDK_KP_6:
972 if (tc->text) {
973 if (MOD__ALT) {
974 if (MOD__SHIFT)
975 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(10, 0));
976 else
977 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(1, 0));
978 sp_text_context_update_cursor(tc);
979 sp_text_context_update_text_selection(tc);
980 sp_document_maybe_done(sp_desktop_document(ec->desktop), "kern:right", SP_VERB_CONTEXT_TEXT,
981 _("Kern to the right"));
982 } else {
983 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorRightWithControl
984 : &Inkscape::Text::Layout::iterator::cursorRight;
985 break;
986 }
987 }
988 return TRUE;
989 case GDK_Up:
990 case GDK_KP_Up:
991 case GDK_KP_8:
992 if (tc->text) {
993 if (MOD__ALT) {
994 if (MOD__SHIFT)
995 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, -10));
996 else
997 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, -1));
998 sp_text_context_update_cursor(tc);
999 sp_text_context_update_text_selection(tc);
1000 sp_document_maybe_done(sp_desktop_document(ec->desktop), "kern:up", SP_VERB_CONTEXT_TEXT,
1001 _("Kern up"));
1003 } else {
1004 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorUpWithControl
1005 : &Inkscape::Text::Layout::iterator::cursorUp;
1006 break;
1007 }
1008 }
1009 return TRUE;
1010 case GDK_Down:
1011 case GDK_KP_Down:
1012 case GDK_KP_2:
1013 if (tc->text) {
1014 if (MOD__ALT) {
1015 if (MOD__SHIFT)
1016 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, 10));
1017 else
1018 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, 1));
1019 sp_text_context_update_cursor(tc);
1020 sp_text_context_update_text_selection(tc);
1021 sp_document_maybe_done(sp_desktop_document(ec->desktop), "kern:down", SP_VERB_CONTEXT_TEXT,
1022 _("Kern down"));
1024 } else {
1025 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorDownWithControl
1026 : &Inkscape::Text::Layout::iterator::cursorDown;
1027 break;
1028 }
1029 }
1030 return TRUE;
1031 case GDK_Home:
1032 case GDK_KP_Home:
1033 if (tc->text) {
1034 if (MOD__CTRL)
1035 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfShape;
1036 else
1037 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfLine;
1038 break;
1039 }
1040 return TRUE;
1041 case GDK_End:
1042 case GDK_KP_End:
1043 if (tc->text) {
1044 if (MOD__CTRL)
1045 cursor_movement_operator = &Inkscape::Text::Layout::iterator::nextStartOfShape;
1046 else
1047 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisEndOfLine;
1048 break;
1049 }
1050 return TRUE;
1051 case GDK_Escape:
1052 if (tc->creating) {
1053 tc->creating = 0;
1054 if (tc->grabbed) {
1055 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1056 tc->grabbed = NULL;
1057 }
1058 Inkscape::Rubberband::get()->stop();
1059 } else {
1060 sp_desktop_selection(ec->desktop)->clear();
1061 }
1062 tc->nascent_object = FALSE;
1063 return TRUE;
1064 case GDK_bracketleft:
1065 if (tc->text) {
1066 if (MOD__ALT || MOD__CTRL) {
1067 if (MOD__ALT) {
1068 if (MOD__SHIFT) {
1069 // FIXME: alt+shift+[] does not work, don't know why
1070 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
1071 } else {
1072 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
1073 }
1074 } else {
1075 sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -90);
1076 }
1077 sp_document_maybe_done(sp_desktop_document(ec->desktop), "textrot:ccw", SP_VERB_CONTEXT_TEXT,
1078 _("Rotate counterclockwise"));
1079 sp_text_context_update_cursor(tc);
1080 sp_text_context_update_text_selection(tc);
1081 return TRUE;
1082 }
1083 }
1084 break;
1085 case GDK_bracketright:
1086 if (tc->text) {
1087 if (MOD__ALT || MOD__CTRL) {
1088 if (MOD__ALT) {
1089 if (MOD__SHIFT) {
1090 // FIXME: alt+shift+[] does not work, don't know why
1091 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
1092 } else {
1093 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
1094 }
1095 } else {
1096 sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 90);
1097 }
1098 sp_document_maybe_done(sp_desktop_document(ec->desktop), "textrot:cw", SP_VERB_CONTEXT_TEXT,
1099 _("Rotate clockwise"));
1100 sp_text_context_update_cursor(tc);
1101 sp_text_context_update_text_selection(tc);
1102 return TRUE;
1103 }
1104 }
1105 break;
1106 case GDK_less:
1107 case GDK_comma:
1108 if (tc->text) {
1109 if (MOD__ALT) {
1110 if (MOD__CTRL) {
1111 if (MOD__SHIFT)
1112 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
1113 else
1114 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
1115 sp_document_maybe_done(sp_desktop_document(ec->desktop), "linespacing:dec", SP_VERB_CONTEXT_TEXT,
1116 _("Contract line spacing"));
1118 } else {
1119 if (MOD__SHIFT)
1120 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
1121 else
1122 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
1123 sp_document_maybe_done(sp_desktop_document(ec->desktop), "letterspacing:dec", SP_VERB_CONTEXT_TEXT,
1124 _("Contract letter spacing"));
1126 }
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_greater:
1134 case GDK_period:
1135 if (tc->text) {
1136 if (MOD__ALT) {
1137 if (MOD__CTRL) {
1138 if (MOD__SHIFT)
1139 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
1140 else
1141 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
1142 sp_document_maybe_done(sp_desktop_document(ec->desktop), "linespacing:inc", SP_VERB_CONTEXT_TEXT,
1143 _("Expand line spacing"));
1145 } else {
1146 if (MOD__SHIFT)
1147 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
1148 else
1149 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
1150 sp_document_maybe_done(sp_desktop_document(ec->desktop), "letterspacing:inc", SP_VERB_CONTEXT_TEXT,
1151 _("Expand letter spacing"));
1153 }
1154 sp_text_context_update_cursor(tc);
1155 sp_text_context_update_text_selection(tc);
1156 return TRUE;
1157 }
1158 }
1159 break;
1160 default:
1161 break;
1162 }
1164 if (cursor_movement_operator) {
1165 Inkscape::Text::Layout::iterator old_start = tc->text_sel_start;
1166 Inkscape::Text::Layout::iterator old_end = tc->text_sel_end;
1167 (tc->text_sel_end.*cursor_movement_operator)();
1168 if (!MOD__SHIFT)
1169 tc->text_sel_start = tc->text_sel_end;
1170 if (old_start != tc->text_sel_start || old_end != tc->text_sel_end) {
1171 sp_text_context_update_cursor(tc);
1172 sp_text_context_update_text_selection(tc);
1173 }
1174 return TRUE;
1175 }
1177 } else return TRUE; // return the "I took care of it" value if it was consumed by the IM
1178 } else { // do nothing if there's no object to type in - the key will be sent to parent context,
1179 // except up/down that are swallowed to prevent the zoom field from activation
1180 if ((group0_keyval == GDK_Up ||
1181 group0_keyval == GDK_Down ||
1182 group0_keyval == GDK_KP_Up ||
1183 group0_keyval == GDK_KP_Down )
1184 && !MOD__CTRL_ONLY) {
1185 return TRUE;
1186 } else if (group0_keyval == GDK_Escape) { // cancel rubberband
1187 if (tc->creating) {
1188 tc->creating = 0;
1189 if (tc->grabbed) {
1190 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1191 tc->grabbed = NULL;
1192 }
1193 Inkscape::Rubberband::get()->stop();
1194 }
1195 }
1196 }
1197 break;
1198 }
1200 case GDK_KEY_RELEASE:
1201 if (!tc->unimode && tc->imc && gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
1202 return TRUE;
1203 }
1204 break;
1205 default:
1206 break;
1207 }
1209 // if nobody consumed it so far
1210 if (((SPEventContextClass *) parent_class)->root_handler) { // and there's a handler in parent context,
1211 return ((SPEventContextClass *) parent_class)->root_handler(ec, event); // send event to parent
1212 } else {
1213 return FALSE; // return "I did nothing" value so that global shortcuts can be activated
1214 }
1215 }
1217 /**
1218 Attempts to paste system clipboard into the currently edited text, returns true on success
1219 */
1220 bool
1221 sp_text_paste_inline(SPEventContext *ec)
1222 {
1223 if (!SP_IS_TEXT_CONTEXT(ec))
1224 return false;
1226 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1228 if ((tc->text) || (tc->nascent_object)) {
1229 // there is an active text object in this context, or a new object was just created
1231 Glib::RefPtr<Gtk::Clipboard> refClipboard = Gtk::Clipboard::get();
1232 Glib::ustring const text = refClipboard->wait_for_text();
1234 if (!text.empty()) {
1236 if (!tc->text) { // create text if none (i.e. if nascent_object)
1237 sp_text_context_setup_text(tc);
1238 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1239 }
1241 // using indices is slow in ustrings. Whatever.
1242 Glib::ustring::size_type begin = 0;
1243 for ( ; ; ) {
1244 Glib::ustring::size_type end = text.find('\n', begin);
1245 if (end == Glib::ustring::npos) {
1246 if (begin != text.length())
1247 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());
1248 break;
1249 }
1250 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());
1251 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
1252 begin = end + 1;
1253 }
1254 sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
1255 _("Paste text"));
1257 return true;
1258 }
1259 } // FIXME: else create and select a new object under cursor!
1261 return false;
1262 }
1264 /**
1265 Gets the raw characters that comprise the currently selected text, converting line
1266 breaks into lf characters.
1267 */
1268 Glib::ustring
1269 sp_text_get_selected_text(SPEventContext const *ec)
1270 {
1271 if (!SP_IS_TEXT_CONTEXT(ec))
1272 return "";
1273 SPTextContext const *tc = SP_TEXT_CONTEXT(ec);
1274 if (tc->text == NULL)
1275 return "";
1277 return sp_te_get_string_multiline(tc->text, tc->text_sel_start, tc->text_sel_end);
1278 }
1280 /**
1281 Deletes the currently selected characters. Returns false if there is no
1282 text selection currently.
1283 */
1284 bool sp_text_delete_selection(SPEventContext *ec)
1285 {
1286 if (!SP_IS_TEXT_CONTEXT(ec))
1287 return false;
1288 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1289 if (tc->text == NULL)
1290 return false;
1292 if (tc->text_sel_start == tc->text_sel_end)
1293 return false;
1294 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
1295 sp_text_context_update_cursor(tc);
1296 sp_text_context_update_text_selection(tc);
1297 return true;
1298 }
1300 /**
1301 * \param selection Should not be NULL.
1302 */
1303 static void
1304 sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc)
1305 {
1306 g_assert(selection != NULL);
1308 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
1310 if (ec->shape_knot_holder) { // destroy knotholder
1311 sp_knot_holder_destroy(ec->shape_knot_holder);
1312 ec->shape_knot_holder = NULL;
1313 }
1315 if (ec->shape_repr) { // remove old listener
1316 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
1317 Inkscape::GC::release(ec->shape_repr);
1318 ec->shape_repr = 0;
1319 }
1321 SPItem *item = selection->singleItem();
1322 if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
1323 ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
1324 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
1325 if (shape_repr) {
1326 ec->shape_repr = shape_repr;
1327 Inkscape::GC::anchor(shape_repr);
1328 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
1329 }
1330 }
1332 if (tc->text && (item != tc->text)) {
1333 sp_text_context_forget_text(tc);
1334 }
1335 tc->text = NULL;
1337 if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) {
1338 tc->text = item;
1339 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1340 if (layout)
1341 tc->text_sel_start = tc->text_sel_end = layout->end();
1342 } else {
1343 tc->text = NULL;
1344 }
1346 // we update cursor without scrolling, because this position may not be final;
1347 // item_handler moves cusros to the point of click immediately
1348 sp_text_context_update_cursor(tc, false);
1349 sp_text_context_update_text_selection(tc);
1350 }
1352 static void
1353 sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc)
1354 {
1355 sp_text_context_update_cursor(tc);
1356 sp_text_context_update_text_selection(tc);
1357 }
1359 static bool
1360 sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc)
1361 {
1362 if (tc->text == NULL)
1363 return false;
1364 if (tc->text_sel_start == tc->text_sel_end)
1365 return false; // will get picked up by the parent and applied to the whole text object
1367 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
1368 sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_CONTEXT_TEXT,
1369 _("Set text style"));
1370 sp_text_context_update_cursor(tc);
1371 sp_text_context_update_text_selection(tc);
1373 return true;
1374 }
1376 static int
1377 sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc)
1378 {
1379 if (tc->text == NULL)
1380 return QUERY_STYLE_NOTHING;
1381 const Inkscape::Text::Layout *layout = te_get_layout(tc->text);
1382 if (layout == NULL)
1383 return QUERY_STYLE_NOTHING;
1384 sp_text_context_validate_cursor_iterators(tc);
1386 GSList *styles_list = NULL;
1388 Inkscape::Text::Layout::iterator begin_it, end_it;
1389 if (tc->text_sel_start < tc->text_sel_end) {
1390 begin_it = tc->text_sel_start;
1391 end_it = tc->text_sel_end;
1392 } else {
1393 begin_it = tc->text_sel_end;
1394 end_it = tc->text_sel_start;
1395 }
1396 if (begin_it == end_it)
1397 if (!begin_it.prevCharacter())
1398 end_it.nextCharacter();
1399 for (Inkscape::Text::Layout::iterator it = begin_it ; it < end_it ; it.nextStartOfSpan()) {
1400 SPObject const *pos_obj = 0;
1401 void *rawptr = 0;
1402 layout->getSourceOfCharacter(it, &rawptr);
1403 pos_obj = SP_OBJECT(rawptr);
1404 if (pos_obj == 0) continue;
1405 while (SP_OBJECT_STYLE(pos_obj) == NULL && SP_OBJECT_PARENT(pos_obj))
1406 pos_obj = SP_OBJECT_PARENT(pos_obj); // SPStrings don't have style
1407 styles_list = g_slist_prepend(styles_list, (gpointer)pos_obj);
1408 }
1410 int result = sp_desktop_query_style_from_list (styles_list, style, property);
1412 g_slist_free(styles_list);
1413 return result;
1414 }
1416 static void
1417 sp_text_context_validate_cursor_iterators(SPTextContext *tc)
1418 {
1419 if (tc->text == NULL)
1420 return;
1421 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1422 if (layout) { // undo can change the text length without us knowing it
1423 layout->validateIterator(&tc->text_sel_start);
1424 layout->validateIterator(&tc->text_sel_end);
1425 }
1426 }
1428 static void
1429 sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see)
1430 {
1431 GdkRectangle im_cursor = { 0, 0, 1, 1 };
1433 // due to interruptible display, tc may already be destroyed during a display update before
1434 // the cursor update (can't do both atomically, alas)
1435 if (!tc->desktop) return;
1437 if (tc->text) {
1438 NR::Point p0, p1;
1439 sp_te_get_cursor_coords(tc->text, tc->text_sel_end, p0, p1);
1440 NR::Point const d0 = p0 * sp_item_i2d_affine(SP_ITEM(tc->text));
1441 NR::Point const d1 = p1 * sp_item_i2d_affine(SP_ITEM(tc->text));
1443 // scroll to show cursor
1444 if (scroll_to_see) {
1445 NR::Point const dm = (d0 + d1) / 2;
1446 // unlike mouse moves, here we must scroll all the way at first shot, so we override the autoscrollspeed
1447 SP_EVENT_CONTEXT(tc)->desktop->scroll_to_point(&dm, 1.0);
1448 }
1450 sp_canvas_item_show(tc->cursor);
1451 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), d0, d1);
1453 /* fixme: ... need another transformation to get canvas widget coordinate space? */
1454 im_cursor.x = (int) floor(d0[NR::X]);
1455 im_cursor.y = (int) floor(d0[NR::Y]);
1456 im_cursor.width = (int) floor(d1[NR::X]) - im_cursor.x;
1457 im_cursor.height = (int) floor(d1[NR::Y]) - im_cursor.y;
1459 tc->show = TRUE;
1460 tc->phase = 1;
1462 if (SP_IS_FLOWTEXT(tc->text)) {
1463 SPItem *frame = SP_FLOWTEXT(tc->text)->get_frame (NULL); // first frame only
1464 if (frame) {
1465 sp_canvas_item_show(tc->frame);
1466 NR::Maybe<NR::Rect> frame_bbox = sp_item_bbox_desktop(frame);
1467 if (frame_bbox) {
1468 SP_CTRLRECT(tc->frame)->setRectangle(*frame_bbox);
1469 }
1470 }
1471 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type flowed text; <b>Enter</b> to start new paragraph."));
1472 } else {
1473 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line."));
1474 }
1476 } else {
1477 sp_canvas_item_hide(tc->cursor);
1478 sp_canvas_item_hide(tc->frame);
1479 tc->show = FALSE;
1480 if (!tc->nascent_object) {
1481 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
1482 }
1483 }
1485 if (tc->imc) {
1486 gtk_im_context_set_cursor_location(tc->imc, &im_cursor);
1487 }
1488 SP_EVENT_CONTEXT(tc)->desktop->emitToolSubselectionChanged((gpointer)tc);
1489 }
1491 static void sp_text_context_update_text_selection(SPTextContext *tc)
1492 {
1493 // due to interruptible display, tc may already be destroyed during a display update before
1494 // the selection update (can't do both atomically, alas)
1495 if (!tc->desktop) return;
1497 for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ; it != tc->text_selection_quads.end() ; it++) {
1498 sp_canvas_item_hide(*it);
1499 gtk_object_destroy(*it);
1500 }
1501 tc->text_selection_quads.clear();
1503 std::vector<NR::Point> quads;
1504 if (tc->text != NULL)
1505 quads = sp_te_create_selection_quads(tc->text, tc->text_sel_start, tc->text_sel_end, sp_item_i2d_affine(tc->text));
1506 for (unsigned i = 0 ; i < quads.size() ; i += 4) {
1507 SPCanvasItem *quad_canvasitem;
1508 quad_canvasitem = sp_canvas_item_new(sp_desktop_controls(tc->desktop), SP_TYPE_CTRLQUADR, NULL);
1509 sp_ctrlquadr_set_rgba32(SP_CTRLQUADR(quad_canvasitem), 0x000000ff);
1510 sp_ctrlquadr_set_coords(SP_CTRLQUADR(quad_canvasitem), quads[i], quads[i+1], quads[i+2], quads[i+3]);
1511 sp_canvas_item_show(quad_canvasitem);
1512 tc->text_selection_quads.push_back(quad_canvasitem);
1513 }
1514 }
1516 static gint
1517 sp_text_context_timeout(SPTextContext *tc)
1518 {
1519 if (tc->show) {
1520 if (tc->phase) {
1521 tc->phase = 0;
1522 sp_canvas_item_hide(tc->cursor);
1523 } else {
1524 tc->phase = 1;
1525 sp_canvas_item_show(tc->cursor);
1526 }
1527 }
1529 return TRUE;
1530 }
1532 static void
1533 sp_text_context_forget_text(SPTextContext *tc)
1534 {
1535 if (! tc->text) return;
1536 SPItem *ti = tc->text;
1537 /* We have to set it to zero,
1538 * or selection changed signal messes everything up */
1539 tc->text = NULL;
1540 if ((SP_IS_TEXT(ti) || SP_IS_FLOWTEXT(ti)) && sp_te_input_is_empty(ti)) {
1541 Inkscape::XML::Node *text_repr=SP_OBJECT_REPR(ti);
1542 // the repr may already have been unparented
1543 // if we were called e.g. as the result of
1544 // an undo or the element being removed from
1545 // the XML editor
1546 if ( text_repr && sp_repr_parent(text_repr) ) {
1547 sp_repr_unparent(text_repr);
1548 }
1549 }
1550 }
1552 gint
1553 sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
1554 {
1555 gtk_im_context_focus_in(tc->imc);
1556 return FALSE;
1557 }
1559 gint
1560 sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
1561 {
1562 gtk_im_context_focus_out(tc->imc);
1563 return FALSE;
1564 }
1566 static void
1567 sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc)
1568 {
1569 if (!tc->text) {
1570 sp_text_context_setup_text(tc);
1571 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1572 }
1574 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, string);
1575 sp_text_context_update_cursor(tc);
1576 sp_text_context_update_text_selection(tc);
1578 sp_document_done(SP_OBJECT_DOCUMENT(tc->text), SP_VERB_CONTEXT_TEXT,
1579 _("Type text"));
1580 }
1583 /*
1584 Local Variables:
1585 mode:c++
1586 c-file-style:"stroustrup"
1587 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1588 indent-tabs-mode:nil
1589 fill-column:99
1590 End:
1591 */
1592 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :