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"
52 #include "text-editing.h"
54 #include "text-context.h"
57 static void sp_text_context_class_init(SPTextContextClass *klass);
58 static void sp_text_context_init(SPTextContext *text_context);
59 static void sp_text_context_dispose(GObject *obj);
61 static void sp_text_context_setup(SPEventContext *ec);
62 static void sp_text_context_finish(SPEventContext *ec);
63 static gint sp_text_context_root_handler(SPEventContext *event_context, GdkEvent *event);
64 static gint sp_text_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
66 static void sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc);
67 static void sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc);
68 static bool sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc);
69 static int sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc);
71 static void sp_text_context_validate_cursor_iterators(SPTextContext *tc);
72 static void sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see = true);
73 static void sp_text_context_update_text_selection(SPTextContext *tc);
74 static gint sp_text_context_timeout(SPTextContext *tc);
75 static void sp_text_context_forget_text(SPTextContext *tc);
77 static gint sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc);
78 static gint sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc);
79 static void sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc);
81 static SPEventContextClass *parent_class;
83 GType
84 sp_text_context_get_type()
85 {
86 static GType type = 0;
87 if (!type) {
88 GTypeInfo info = {
89 sizeof(SPTextContextClass),
90 NULL, NULL,
91 (GClassInitFunc) sp_text_context_class_init,
92 NULL, NULL,
93 sizeof(SPTextContext),
94 4,
95 (GInstanceInitFunc) sp_text_context_init,
96 NULL, /* value_table */
97 };
98 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPTextContext", &info, (GTypeFlags)0);
99 }
100 return type;
101 }
103 static void
104 sp_text_context_class_init(SPTextContextClass *klass)
105 {
106 GObjectClass *object_class=(GObjectClass *)klass;
107 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
109 parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
111 object_class->dispose = sp_text_context_dispose;
113 event_context_class->setup = sp_text_context_setup;
114 event_context_class->finish = sp_text_context_finish;
115 event_context_class->root_handler = sp_text_context_root_handler;
116 event_context_class->item_handler = sp_text_context_item_handler;
117 }
119 static void
120 sp_text_context_init(SPTextContext *tc)
121 {
122 SPEventContext *event_context = SP_EVENT_CONTEXT(tc);
124 event_context->cursor_shape = cursor_text_xpm;
125 event_context->hot_x = 7;
126 event_context->hot_y = 7;
128 event_context->xp = 0;
129 event_context->yp = 0;
130 event_context->tolerance = 0;
131 event_context->within_tolerance = false;
133 event_context->shape_repr = NULL;
134 event_context->shape_knot_holder = NULL;
136 tc->imc = NULL;
138 tc->text = NULL;
139 tc->pdoc = NR::Point(0, 0);
140 new (&tc->text_sel_start) Inkscape::Text::Layout::iterator();
141 new (&tc->text_sel_end) Inkscape::Text::Layout::iterator();
142 new (&tc->text_selection_quads) std::vector<SPCanvasItem*>();
144 tc->unimode = false;
146 tc->cursor = NULL;
147 tc->indicator = NULL;
148 tc->frame = NULL;
149 tc->grabbed = NULL;
150 tc->timeout = 0;
151 tc->show = FALSE;
152 tc->phase = 0;
153 tc->nascent_object = 0;
154 tc->over_text = 0;
155 tc->dragging = 0;
156 tc->creating = 0;
158 new (&tc->sel_changed_connection) sigc::connection();
159 new (&tc->sel_modified_connection) sigc::connection();
160 new (&tc->style_set_connection) sigc::connection();
161 new (&tc->style_query_connection) sigc::connection();
162 }
164 static void
165 sp_text_context_dispose(GObject *obj)
166 {
167 SPTextContext *tc = SP_TEXT_CONTEXT(obj);
168 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
169 tc->style_query_connection.~connection();
170 tc->style_set_connection.~connection();
171 tc->sel_changed_connection.~connection();
172 tc->sel_modified_connection.~connection();
173 tc->text_sel_end.~iterator();
174 tc->text_sel_start.~iterator();
175 tc->text_selection_quads.~vector();
176 if (G_OBJECT_CLASS(parent_class)->dispose) {
177 G_OBJECT_CLASS(parent_class)->dispose(obj);
178 }
179 if (tc->grabbed) {
180 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
181 tc->grabbed = NULL;
182 }
184 Inkscape::Rubberband::get()->stop();
186 if (ec->shape_knot_holder) {
187 sp_knot_holder_destroy(ec->shape_knot_holder);
188 ec->shape_knot_holder = NULL;
189 }
190 if (ec->shape_repr) { // remove old listener
191 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
192 Inkscape::GC::release(ec->shape_repr);
193 ec->shape_repr = 0;
194 }
195 }
197 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
198 NULL, /* child_added */
199 NULL, /* child_removed */
200 ec_shape_event_attr_changed,
201 NULL, /* content_changed */
202 NULL /* order_changed */
203 };
205 static void
206 sp_text_context_setup(SPEventContext *ec)
207 {
208 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
209 SPDesktop *desktop = ec->desktop;
211 tc->cursor = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLLINE, NULL);
212 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), 100, 0, 100, 100);
213 sp_ctrlline_set_rgba32(SP_CTRLLINE(tc->cursor), 0x000000ff);
214 sp_canvas_item_hide(tc->cursor);
216 tc->indicator = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLRECT, NULL);
217 SP_CTRLRECT(tc->indicator)->setRectangle(NR::Rect(NR::Point(0, 0), NR::Point(100, 100)));
218 SP_CTRLRECT(tc->indicator)->setColor(0x0000ff7f, false, 0);
219 sp_canvas_item_hide(tc->indicator);
221 tc->frame = sp_canvas_item_new(SP_DT_CONTROLS(desktop), SP_TYPE_CTRLRECT, NULL);
222 SP_CTRLRECT(tc->frame)->setRectangle(NR::Rect(NR::Point(0, 0), NR::Point(100, 100)));
223 SP_CTRLRECT(tc->frame)->setColor(0x0000ff7f, false, 0);
224 sp_canvas_item_hide(tc->frame);
226 tc->timeout = gtk_timeout_add(250, (GtkFunction) sp_text_context_timeout, ec);
228 tc->imc = gtk_im_multicontext_new();
229 if (tc->imc) {
230 GtkWidget *canvas = GTK_WIDGET(SP_DT_CANVAS(desktop));
232 /* im preedit handling is very broken in inkscape for
233 * multi-byte characters. See bug 1086769.
234 * We need to let the IM handle the preediting, and
235 * just take in the characters when they're finished being
236 * entered.
237 */
238 gtk_im_context_set_use_preedit(tc->imc, FALSE);
239 gtk_im_context_set_client_window(tc->imc, canvas->window);
241 g_signal_connect(G_OBJECT(canvas), "focus_in_event", G_CALLBACK(sptc_focus_in), tc);
242 g_signal_connect(G_OBJECT(canvas), "focus_out_event", G_CALLBACK(sptc_focus_out), tc);
243 g_signal_connect(G_OBJECT(tc->imc), "commit", G_CALLBACK(sptc_commit), tc);
245 if (GTK_WIDGET_HAS_FOCUS(canvas)) {
246 sptc_focus_in(canvas, NULL, tc);
247 }
248 }
250 if (((SPEventContextClass *) parent_class)->setup)
251 ((SPEventContextClass *) parent_class)->setup(ec);
253 SPItem *item = SP_DT_SELECTION(ec->desktop)->singleItem();
254 if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
255 ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
256 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
257 if (shape_repr) {
258 ec->shape_repr = shape_repr;
259 Inkscape::GC::anchor(shape_repr);
260 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
261 }
262 }
264 tc->sel_changed_connection = SP_DT_SELECTION(desktop)->connectChanged(
265 sigc::bind(sigc::ptr_fun(&sp_text_context_selection_changed), tc)
266 );
267 tc->sel_modified_connection = SP_DT_SELECTION(desktop)->connectModified(
268 sigc::bind(sigc::ptr_fun(&sp_text_context_selection_modified), tc)
269 );
270 tc->style_set_connection = desktop->connectSetStyle(
271 sigc::bind(sigc::ptr_fun(&sp_text_context_style_set), tc)
272 );
273 tc->style_query_connection = desktop->connectQueryStyle(
274 sigc::bind(sigc::ptr_fun(&sp_text_context_style_query), tc)
275 );
277 sp_text_context_selection_changed(SP_DT_SELECTION(desktop), tc);
279 if (prefs_get_int_attribute("tools.text", "selcue", 0) != 0) {
280 ec->enableSelectionCue();
281 }
282 if (prefs_get_int_attribute("tools.text", "gradientdrag", 0) != 0) {
283 ec->enableGrDrag();
284 }
285 }
287 static void
288 sp_text_context_finish(SPEventContext *ec)
289 {
290 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
292 ec->enableGrDrag(false);
294 tc->style_set_connection.disconnect();
295 tc->style_query_connection.disconnect();
296 tc->sel_changed_connection.disconnect();
297 tc->sel_modified_connection.disconnect();
299 sp_text_context_forget_text(SP_TEXT_CONTEXT(ec));
301 if (tc->imc) {
302 g_object_unref(G_OBJECT(tc->imc));
303 tc->imc = NULL;
304 }
306 if (tc->timeout) {
307 gtk_timeout_remove(tc->timeout);
308 tc->timeout = 0;
309 }
311 if (tc->cursor) {
312 gtk_object_destroy(GTK_OBJECT(tc->cursor));
313 tc->cursor = NULL;
314 }
316 if (tc->indicator) {
317 gtk_object_destroy(GTK_OBJECT(tc->indicator));
318 tc->indicator = NULL;
319 }
321 if (tc->frame) {
322 gtk_object_destroy(GTK_OBJECT(tc->frame));
323 tc->frame = NULL;
324 }
326 for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ;
327 it != tc->text_selection_quads.end() ; ++it) {
328 sp_canvas_item_hide(*it);
329 gtk_object_destroy(*it);
330 }
331 tc->text_selection_quads.clear();
333 if (ec->desktop) {
334 sp_signal_disconnect_by_data(SP_DT_CANVAS(ec->desktop), tc);
335 }
336 }
339 static gint
340 sp_text_context_item_handler(SPEventContext *ec, SPItem *item, GdkEvent *event)
341 {
342 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
343 SPDesktop *desktop = ec->desktop;
344 SPItem *item_ungrouped;
346 gint ret = FALSE;
348 sp_text_context_validate_cursor_iterators(tc);
350 switch (event->type) {
351 case GDK_BUTTON_PRESS:
352 if (event->button.button == 1) {
353 // find out clicked item, disregarding groups
354 item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
355 if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
356 SP_DT_SELECTION(ec->desktop)->set(item_ungrouped);
357 if (tc->text) {
358 // find out click point in document coordinates
359 NR::Point p = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
360 // set the cursor closest to that point
361 tc->text_sel_start = tc->text_sel_end = sp_te_get_position_by_coords(tc->text, p);
362 // update display
363 sp_text_context_update_cursor(tc);
364 sp_text_context_update_text_selection(tc);
365 tc->dragging = 1;
366 }
367 ret = TRUE;
368 }
369 }
370 break;
371 case GDK_2BUTTON_PRESS:
372 if (event->button.button == 1 && tc->text) {
373 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
374 if (layout) {
375 if (!layout->isStartOfWord(tc->text_sel_start))
376 tc->text_sel_start.prevStartOfWord();
377 if (!layout->isEndOfWord(tc->text_sel_end))
378 tc->text_sel_end.nextEndOfWord();
379 sp_text_context_update_cursor(tc);
380 sp_text_context_update_text_selection(tc);
381 tc->dragging = 2;
382 ret = TRUE;
383 }
384 }
385 break;
386 case GDK_3BUTTON_PRESS:
387 if (event->button.button == 1 && tc->text) {
388 tc->text_sel_start.thisStartOfLine();
389 tc->text_sel_end.thisEndOfLine();
390 sp_text_context_update_cursor(tc);
391 sp_text_context_update_text_selection(tc);
392 tc->dragging = 3;
393 ret = TRUE;
394 }
395 break;
396 case GDK_BUTTON_RELEASE:
397 if (event->button.button == 1 && tc->dragging) {
398 tc->dragging = 0;
399 ret = TRUE;
400 }
401 break;
402 case GDK_MOTION_NOTIFY:
403 if (event->motion.state & GDK_BUTTON1_MASK && tc->dragging) {
404 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
405 if (!layout) break;
406 // find out click point in document coordinates
407 NR::Point p = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
408 // set the cursor closest to that point
409 Inkscape::Text::Layout::iterator new_end = sp_te_get_position_by_coords(tc->text, p);
410 if (tc->dragging == 2) {
411 // double-click dragging: go by word
412 if (new_end < tc->text_sel_start) {
413 if (!layout->isStartOfWord(new_end))
414 new_end.prevStartOfWord();
415 } else
416 if (!layout->isEndOfWord(new_end))
417 new_end.nextEndOfWord();
418 } else if (tc->dragging == 3) {
419 // triple-click dragging: go by line
420 if (new_end < tc->text_sel_start)
421 new_end.thisStartOfLine();
422 else
423 new_end.thisEndOfLine();
424 }
425 // update display
426 if (tc->text_sel_end != new_end) {
427 tc->text_sel_end = new_end;
428 sp_text_context_update_cursor(tc);
429 sp_text_context_update_text_selection(tc);
430 }
431 ret = TRUE;
432 break;
433 }
434 // find out item under mouse, disregarding groups
435 item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
436 if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
437 sp_canvas_item_show(tc->indicator);
438 SP_CTRLRECT(tc->indicator)->setRectangle(sp_item_bbox_desktop(item_ungrouped));
440 ec->cursor_shape = cursor_text_insert_xpm;
441 ec->hot_x = 7;
442 ec->hot_y = 10;
443 sp_event_context_update_cursor(ec);
444 sp_text_context_update_text_selection(tc);
446 if (SP_IS_TEXT (item_ungrouped)) {
447 desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the text, <b>drag</b> to select part of the text."));
448 } else {
449 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."));
450 }
452 tc->over_text = true;
454 ret = TRUE;
455 }
456 break;
457 default:
458 break;
459 }
461 if (!ret) {
462 if (((SPEventContextClass *) parent_class)->item_handler)
463 ret = ((SPEventContextClass *) parent_class)->item_handler(ec, item, event);
464 }
466 return ret;
467 }
469 static void
470 sp_text_context_setup_text(SPTextContext *tc)
471 {
472 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
474 /* Create <text> */
475 Inkscape::XML::Node *rtext = sp_repr_new("svg:text");
476 rtext->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
478 /* Set style */
479 sp_desktop_apply_style_tool(SP_EVENT_CONTEXT_DESKTOP(ec), rtext, "tools.text", true);
481 sp_repr_set_svg_double(rtext, "x", tc->pdoc[NR::X]);
482 sp_repr_set_svg_double(rtext, "y", tc->pdoc[NR::Y]);
484 /* Create <tspan> */
485 Inkscape::XML::Node *rtspan = sp_repr_new("svg:tspan");
486 rtspan->setAttribute("sodipodi:role", "line"); // otherwise, why bother creating the tspan?
487 rtext->addChild(rtspan, NULL);
488 Inkscape::GC::release(rtspan);
490 /* Create TEXT */
491 Inkscape::XML::Node *rstring = sp_repr_new_text("");
492 rtspan->addChild(rstring, NULL);
493 Inkscape::GC::release(rstring);
494 SPItem *text_item = SP_ITEM(ec->desktop->currentLayer()->appendChildRepr(rtext));
495 /* fixme: Is selection::changed really immediate? */
496 /* yes, it's immediate .. why does it matter? */
497 SP_DT_SELECTION(ec->desktop)->set(text_item);
498 Inkscape::GC::release(rtext);
499 text_item->transform = SP_ITEM(ec->desktop->currentRoot())->getRelativeTransform(ec->desktop->currentLayer());
500 text_item->updateRepr();
501 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
502 }
504 /**
505 * Insert the character indicated by tc.uni to replace the current selection,
506 * and reset tc.uni/tc.unipos to empty string.
507 *
508 * \pre tc.uni/tc.unipos non-empty.
509 */
510 static void
511 insert_uni_char(SPTextContext *const tc)
512 {
513 g_return_if_fail(tc->unipos
514 && tc->unipos < sizeof(tc->uni)
515 && tc->uni[tc->unipos] == '\0');
516 unsigned int uv;
517 sscanf(tc->uni, "%x", &uv);
518 tc->unipos = 0;
519 tc->uni[tc->unipos] = '\0';
521 if ( !g_unichar_isprint(static_cast<gunichar>(uv))
522 && !(g_unichar_validate(static_cast<gunichar>(uv)) && (g_unichar_type(static_cast<gunichar>(uv)) == G_UNICODE_PRIVATE_USE) ) ) {
523 // This may be due to bad input, so it goes to statusbar.
524 tc->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE,
525 _("Non-printable character"));
526 } else {
527 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
528 sp_text_context_setup_text(tc);
529 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
530 }
532 gchar u[10];
533 guint const len = g_unichar_to_utf8(uv, u);
534 u[len] = '\0';
536 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, u);
537 sp_text_context_update_cursor(tc);
538 sp_text_context_update_text_selection(tc);
539 sp_document_done(SP_DT_DOCUMENT(tc->desktop));
540 }
541 }
543 static void
544 hex_to_printable_utf8_buf(char const *const hex, char *utf8)
545 {
546 unsigned int uv;
547 sscanf(hex, "%x", &uv);
548 if (!g_unichar_isprint((gunichar) uv)) {
549 uv = 0xfffd;
550 }
551 guint const len = g_unichar_to_utf8(uv, utf8);
552 utf8[len] = '\0';
553 }
555 static void
556 show_curr_uni_char(SPTextContext *const tc)
557 {
558 g_return_if_fail(tc->unipos < sizeof(tc->uni)
559 && tc->uni[tc->unipos] == '\0');
560 if (tc->unipos) {
561 char utf8[10];
562 hex_to_printable_utf8_buf(tc->uni, utf8);
564 /* Status bar messages are in pango markup, so we need xml escaping. */
565 if (utf8[1] == '\0') {
566 switch(utf8[0]) {
567 case '<': strcpy(utf8, "<"); break;
568 case '>': strcpy(utf8, ">"); break;
569 case '&': strcpy(utf8, "&"); break;
570 default: break;
571 }
572 }
573 tc->defaultMessageContext()->setF(Inkscape::NORMAL_MESSAGE,
574 _("Unicode: %s: %s"), tc->uni, utf8);
575 } else {
576 tc->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode: "));
577 }
578 }
580 static gint
581 sp_text_context_root_handler(SPEventContext *const ec, GdkEvent *const event)
582 {
583 SPTextContext *const tc = SP_TEXT_CONTEXT(ec);
585 SPDesktop *desktop = ec->desktop;
587 sp_canvas_item_hide(tc->indicator);
589 sp_text_context_validate_cursor_iterators(tc);
591 ec->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
593 switch (event->type) {
594 case GDK_BUTTON_PRESS:
595 if (event->button.button == 1) {
597 SPDesktop *desktop = SP_EVENT_CONTEXT_DESKTOP(ec);
599 if (Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false) {
600 return TRUE;
601 }
603 // save drag origin
604 ec->xp = (gint) event->button.x;
605 ec->yp = (gint) event->button.y;
606 ec->within_tolerance = true;
608 NR::Point const button_pt(event->button.x, event->button.y);
609 tc->p0 = desktop->w2d(button_pt);
610 Inkscape::Rubberband::get()->start(desktop, tc->p0);
611 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
612 GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
613 GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK,
614 NULL, event->button.time);
615 tc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
616 tc->creating = 1;
618 /* Processed */
619 return TRUE;
620 }
621 break;
622 case GDK_MOTION_NOTIFY:
623 if (tc->over_text) {
624 tc->over_text = 0;
625 // update cursor and statusbar: we are not over a text object now
626 ec->cursor_shape = cursor_text_xpm;
627 ec->hot_x = 7;
628 ec->hot_y = 7;
629 sp_event_context_update_cursor(ec);
630 desktop->event_context->defaultMessageContext()->clear();
631 }
633 if (tc->creating && event->motion.state & GDK_BUTTON1_MASK) {
634 if ( ec->within_tolerance
635 && ( abs( (gint) event->motion.x - ec->xp ) < ec->tolerance )
636 && ( abs( (gint) event->motion.y - ec->yp ) < ec->tolerance ) ) {
637 break; // do not drag if we're within tolerance from origin
638 }
639 // Once the user has moved farther than tolerance from the original location
640 // (indicating they intend to draw, not click), then always process the
641 // motion notify coordinates as given (no snapping back to origin)
642 ec->within_tolerance = false;
644 NR::Point const motion_pt(event->motion.x, event->motion.y);
645 NR::Point const p = desktop->w2d(motion_pt);
647 Inkscape::Rubberband::get()->move(p);
648 gobble_motion_events(GDK_BUTTON1_MASK);
650 // status text
651 GString *xs = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::X]), desktop->namedview->getDefaultMetric());
652 GString *ys = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::Y]), desktop->namedview->getDefaultMetric());
653 ec->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("<b>Flowed text frame</b>: %s × %s"), xs->str, ys->str);
654 g_string_free(xs, FALSE);
655 g_string_free(ys, FALSE);
657 }
658 break;
659 case GDK_BUTTON_RELEASE:
660 if (event->button.button == 1) {
662 if (tc->grabbed) {
663 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
664 tc->grabbed = NULL;
665 }
667 Inkscape::Rubberband::get()->stop();
669 if (tc->creating && ec->within_tolerance) {
670 /* Button 1, set X & Y & new item */
671 SP_DT_SELECTION(desktop)->clear();
672 NR::Point dtp = ec->desktop->w2d(NR::Point(event->button.x, event->button.y));
673 tc->pdoc = sp_desktop_dt2root_xy_point(ec->desktop, dtp);
675 tc->show = TRUE;
676 tc->phase = 1;
677 tc->nascent_object = 1; // new object was just created
679 /* Cursor */
680 sp_canvas_item_show(tc->cursor);
681 // Cursor height is defined by the new text object's font size; it needs to be set
682 // articifically here, for the text object does not exist yet:
683 double cursor_height = sp_desktop_get_font_size_tool(ec->desktop);
684 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), dtp, dtp + NR::Point(0, cursor_height));
685 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
687 ec->within_tolerance = false;
688 } else if (tc->creating) {
689 NR::Point const button_pt(event->button.x, event->button.y);
690 NR::Point p1 = desktop->w2d(button_pt);
691 double cursor_height = sp_desktop_get_font_size_tool(ec->desktop);
692 if (fabs(p1[NR::Y] - tc->p0[NR::Y]) > cursor_height) {
693 // otherwise even one line won't fit; most probably a slip of hand (even if bigger than tolerance)
694 SPItem *ft = create_flowtext_with_internal_frame (desktop, tc->p0, p1);
695 SP_DT_SELECTION(desktop)->set(ft);
696 ec->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Flowed text is created."));
697 sp_document_done(SP_DT_DOCUMENT(desktop));
698 } else {
699 ec->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("The frame is <b>too small</b> for the current font size. Flowed text not created."));
700 }
701 }
702 tc->creating = false;
703 return TRUE;
704 }
705 break;
706 case GDK_KEY_PRESS: {
707 guint const group0_keyval = get_group0_keyval(&event->key);
709 if (group0_keyval == GDK_KP_Add ||
710 group0_keyval == GDK_KP_Subtract) {
711 if (!(event->key.state & GDK_MOD2_MASK)) // mod2 is NumLock; if on, type +/- keys
712 break; // otherwise pass on keypad +/- so they can zoom
713 }
715 if ((tc->text) || (tc->nascent_object)) {
716 // there is an active text object in this context, or a new object was just created
718 if (tc->unimode || !tc->imc
719 || (MOD__CTRL && MOD__SHIFT) // input methods tend to steal this for unimode,
720 // but we have our own so make sure they don't swallow it
721 || !gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
722 //IM did not consume the key, or we're in unimode
724 if (!MOD__CTRL_ONLY && tc->unimode) {
725 /* TODO: ISO 14755 (section 3 Definitions) says that we should also
726 accept the first 6 characters of alphabets other than the latin
727 alphabet "if the Latin alphabet is not used". The below is also
728 reasonable (viz. hope that the user's keyboard includes latin
729 characters and force latin interpretation -- just as we do for our
730 keyboard shortcuts), but differs from the ISO 14755
731 recommendation. */
732 switch (group0_keyval) {
733 case GDK_space:
734 case GDK_KP_Space: {
735 if (tc->unipos) {
736 insert_uni_char(tc);
737 }
738 /* Stay in unimode. */
739 show_curr_uni_char(tc);
740 return TRUE;
741 }
743 case GDK_BackSpace: {
744 g_return_val_if_fail(tc->unipos < sizeof(tc->uni), TRUE);
745 if (tc->unipos) {
746 tc->uni[--tc->unipos] = '\0';
747 }
748 show_curr_uni_char(tc);
749 return TRUE;
750 }
752 case GDK_Return:
753 case GDK_KP_Enter: {
754 if (tc->unipos) {
755 insert_uni_char(tc);
756 }
757 /* Exit unimode. */
758 tc->unimode = false;
759 ec->defaultMessageContext()->clear();
760 return TRUE;
761 }
763 case GDK_Escape: {
764 // Cancel unimode.
765 tc->unimode = false;
766 gtk_im_context_reset(tc->imc);
767 ec->defaultMessageContext()->clear();
768 return TRUE;
769 }
771 case GDK_Shift_L:
772 case GDK_Shift_R:
773 break;
775 default: {
776 if (g_ascii_isxdigit(group0_keyval)) {
777 g_return_val_if_fail(tc->unipos < sizeof(tc->uni) - 1, TRUE);
778 tc->uni[tc->unipos++] = group0_keyval;
779 tc->uni[tc->unipos] = '\0';
780 if (tc->unipos == 8) {
781 /* This behaviour is partly to allow us to continue to
782 use a fixed-length buffer for tc->uni. Reason for
783 choosing the number 8 is that it's the length of
784 ``canonical form'' mentioned in the ISO 14755 spec.
785 An advantage over choosing 6 is that it allows using
786 backspace for typos & misremembering when entering a
787 6-digit number. */
788 insert_uni_char(tc);
789 }
790 show_curr_uni_char(tc);
791 return TRUE;
792 } else {
793 /* The intent is to ignore but consume characters that could be
794 typos for hex digits. Gtk seems to ignore & consume all
795 non-hex-digits, and we do similar here. Though note that some
796 shortcuts (like keypad +/- for zoom) get processed before
797 reaching this code. */
798 return TRUE;
799 }
800 }
801 }
802 }
804 bool (Inkscape::Text::Layout::iterator::*cursor_movement_operator)() = NULL;
806 /* Neither unimode nor IM consumed key; process text tool shortcuts */
807 switch (group0_keyval) {
808 case GDK_space:
809 if (MOD__CTRL_ONLY) {
810 /* No-break space */
811 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
812 sp_text_context_setup_text(tc);
813 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
814 }
815 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, "\302\240");
816 sp_text_context_update_cursor(tc);
817 sp_text_context_update_text_selection(tc);
818 ec->desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("No-break space"));
819 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
820 return TRUE;
821 }
822 break;
823 case GDK_U:
824 case GDK_u:
825 if (MOD__CTRL_ONLY) {
826 if (tc->unimode) {
827 tc->unimode = false;
828 ec->defaultMessageContext()->clear();
829 } else {
830 tc->unimode = true;
831 tc->unipos = 0;
832 ec->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode: "));
833 }
834 if (tc->imc) {
835 gtk_im_context_reset(tc->imc);
836 }
837 return TRUE;
838 }
839 break;
840 case GDK_B:
841 case GDK_b:
842 if (MOD__CTRL_ONLY && tc->text) {
843 SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
844 SPCSSAttr *css = sp_repr_css_attr_new();
845 if (style->font_weight.computed == SP_CSS_FONT_WEIGHT_NORMAL
846 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_100
847 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_200
848 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_300
849 || style->font_weight.computed == SP_CSS_FONT_WEIGHT_400)
850 sp_repr_css_set_property(css, "font-weight", "bold");
851 else
852 sp_repr_css_set_property(css, "font-weight", "normal");
853 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
854 sp_repr_css_attr_unref(css);
855 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
856 sp_text_context_update_cursor(tc);
857 sp_text_context_update_text_selection(tc);
858 return TRUE;
859 }
860 break;
861 case GDK_I:
862 case GDK_i:
863 if (MOD__CTRL_ONLY && tc->text) {
864 SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
865 SPCSSAttr *css = sp_repr_css_attr_new();
866 if (style->font_style.computed == SP_CSS_FONT_STYLE_NORMAL)
867 sp_repr_css_set_property(css, "font-style", "italic");
868 else
869 sp_repr_css_set_property(css, "font-style", "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_DT_DOCUMENT(ec->desktop));
873 sp_text_context_update_cursor(tc);
874 sp_text_context_update_text_selection(tc);
875 return TRUE;
876 }
877 break;
879 case GDK_A:
880 case GDK_a:
881 if (MOD__CTRL_ONLY && tc->text) {
882 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
883 if (layout) {
884 tc->text_sel_start = layout->begin();
885 tc->text_sel_end = layout->end();
886 sp_text_context_update_cursor(tc);
887 sp_text_context_update_text_selection(tc);
888 return TRUE;
889 }
890 }
891 break;
893 case GDK_Return:
894 case GDK_KP_Enter:
895 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
896 sp_text_context_setup_text(tc);
897 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
898 }
899 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
900 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
901 sp_text_context_update_cursor(tc);
902 sp_text_context_update_text_selection(tc);
903 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
904 return TRUE;
905 case GDK_BackSpace:
906 if (tc->text) { // if nascent_object, do nothing, but return TRUE; same for all other delete and move keys
907 if (tc->text_sel_start == tc->text_sel_end)
908 tc->text_sel_start.prevCursorPosition();
909 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
910 sp_text_context_update_cursor(tc);
911 sp_text_context_update_text_selection(tc);
912 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
913 }
914 return TRUE;
915 case GDK_Delete:
916 case GDK_KP_Delete:
917 if (tc->text) {
918 if (tc->text_sel_start == tc->text_sel_end)
919 tc->text_sel_end.nextCursorPosition();
920 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
921 sp_text_context_update_cursor(tc);
922 sp_text_context_update_text_selection(tc);
923 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
924 }
925 return TRUE;
926 case GDK_Left:
927 case GDK_KP_Left:
928 case GDK_KP_4:
929 if (tc->text) {
930 if (MOD__ALT) {
931 if (MOD__SHIFT)
932 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(-10, 0));
933 else
934 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(-1, 0));
935 sp_text_context_update_cursor(tc);
936 sp_text_context_update_text_selection(tc);
937 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:left");
938 } else {
939 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorLeftWithControl
940 : &Inkscape::Text::Layout::iterator::cursorLeft;
941 break;
942 }
943 }
944 return TRUE;
945 case GDK_Right:
946 case GDK_KP_Right:
947 case GDK_KP_6:
948 if (tc->text) {
949 if (MOD__ALT) {
950 if (MOD__SHIFT)
951 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(10, 0));
952 else
953 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(1, 0));
954 sp_text_context_update_cursor(tc);
955 sp_text_context_update_text_selection(tc);
956 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:right");
957 } else {
958 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorRightWithControl
959 : &Inkscape::Text::Layout::iterator::cursorRight;
960 break;
961 }
962 }
963 return TRUE;
964 case GDK_Up:
965 case GDK_KP_Up:
966 case GDK_KP_8:
967 if (tc->text) {
968 if (MOD__ALT) {
969 if (MOD__SHIFT)
970 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, -10));
971 else
972 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, -1));
973 sp_text_context_update_cursor(tc);
974 sp_text_context_update_text_selection(tc);
975 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:up");
976 } else {
977 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorUpWithControl
978 : &Inkscape::Text::Layout::iterator::cursorUp;
979 break;
980 }
981 }
982 return TRUE;
983 case GDK_Down:
984 case GDK_KP_Down:
985 case GDK_KP_2:
986 if (tc->text) {
987 if (MOD__ALT) {
988 if (MOD__SHIFT)
989 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, 10));
990 else
991 sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, NR::Point(0, 1));
992 sp_text_context_update_cursor(tc);
993 sp_text_context_update_text_selection(tc);
994 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "kern:down");
995 } else {
996 cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorDownWithControl
997 : &Inkscape::Text::Layout::iterator::cursorDown;
998 break;
999 }
1000 }
1001 return TRUE;
1002 case GDK_Home:
1003 case GDK_KP_Home:
1004 if (tc->text) {
1005 if (MOD__CTRL)
1006 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfShape;
1007 else
1008 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfLine;
1009 break;
1010 }
1011 return TRUE;
1012 case GDK_End:
1013 case GDK_KP_End:
1014 if (tc->text) {
1015 if (MOD__CTRL)
1016 cursor_movement_operator = &Inkscape::Text::Layout::iterator::nextStartOfShape;
1017 else
1018 cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisEndOfLine;
1019 break;
1020 }
1021 return TRUE;
1022 case GDK_Escape:
1023 if (tc->creating) {
1024 tc->creating = 0;
1025 if (tc->grabbed) {
1026 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1027 tc->grabbed = NULL;
1028 }
1029 Inkscape::Rubberband::get()->stop();
1030 } else {
1031 SP_DT_SELECTION(ec->desktop)->clear();
1032 }
1033 return TRUE;
1034 case GDK_bracketleft:
1035 if (tc->text) {
1036 if (MOD__ALT || MOD__CTRL) {
1037 if (MOD__ALT) {
1038 if (MOD__SHIFT) {
1039 // FIXME: alt+shift+[] does not work, don't know why
1040 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
1041 } else {
1042 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
1043 }
1044 } else {
1045 sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -90);
1046 }
1047 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "textrot:ccw");
1048 sp_text_context_update_cursor(tc);
1049 sp_text_context_update_text_selection(tc);
1050 return TRUE;
1051 }
1052 }
1053 break;
1054 case GDK_bracketright:
1055 if (tc->text) {
1056 if (MOD__ALT || MOD__CTRL) {
1057 if (MOD__ALT) {
1058 if (MOD__SHIFT) {
1059 // FIXME: alt+shift+[] does not work, don't know why
1060 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
1061 } else {
1062 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
1063 }
1064 } else {
1065 sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 90);
1066 }
1067 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "textrot:cw");
1068 sp_text_context_update_cursor(tc);
1069 sp_text_context_update_text_selection(tc);
1070 return TRUE;
1071 }
1072 }
1073 break;
1074 case GDK_less:
1075 case GDK_comma:
1076 if (tc->text) {
1077 if (MOD__ALT) {
1078 if (MOD__CTRL) {
1079 if (MOD__SHIFT)
1080 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
1081 else
1082 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
1083 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "linespacing:dec");
1084 } else {
1085 if (MOD__SHIFT)
1086 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -10);
1087 else
1088 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, -1);
1089 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "letterspacing:dec");
1090 }
1091 sp_text_context_update_cursor(tc);
1092 sp_text_context_update_text_selection(tc);
1093 return TRUE;
1094 }
1095 }
1096 break;
1097 case GDK_greater:
1098 case GDK_period:
1099 if (tc->text) {
1100 if (MOD__ALT) {
1101 if (MOD__CTRL) {
1102 if (MOD__SHIFT)
1103 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
1104 else
1105 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
1106 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "linespacing:inc");
1107 } else {
1108 if (MOD__SHIFT)
1109 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 10);
1110 else
1111 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, ec->desktop, 1);
1112 sp_document_maybe_done(SP_DT_DOCUMENT(ec->desktop), "letterspacing:inc");
1113 }
1114 sp_text_context_update_cursor(tc);
1115 sp_text_context_update_text_selection(tc);
1116 return TRUE;
1117 }
1118 }
1119 break;
1120 default:
1121 break;
1122 }
1124 if (cursor_movement_operator) {
1125 Inkscape::Text::Layout::iterator old_start = tc->text_sel_start;
1126 Inkscape::Text::Layout::iterator old_end = tc->text_sel_end;
1127 (tc->text_sel_end.*cursor_movement_operator)();
1128 if (!MOD__SHIFT)
1129 tc->text_sel_start = tc->text_sel_end;
1130 if (old_start != tc->text_sel_start || old_end != tc->text_sel_end) {
1131 sp_text_context_update_cursor(tc);
1132 sp_text_context_update_text_selection(tc);
1133 }
1134 return TRUE;
1135 }
1137 } else return TRUE; // return the "I took care of it" value if it was consumed by the IM
1138 } else { // do nothing if there's no object to type in - the key will be sent to parent context,
1139 // except up/down that are swallowed to prevent the zoom field from activation
1140 if ((group0_keyval == GDK_Up ||
1141 group0_keyval == GDK_Down ||
1142 group0_keyval == GDK_KP_Up ||
1143 group0_keyval == GDK_KP_Down )
1144 && !MOD__CTRL_ONLY) {
1145 return TRUE;
1146 } else if (group0_keyval == GDK_Escape) { // cancel rubberband
1147 if (tc->creating) {
1148 tc->creating = 0;
1149 if (tc->grabbed) {
1150 sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1151 tc->grabbed = NULL;
1152 }
1153 Inkscape::Rubberband::get()->stop();
1154 }
1155 }
1156 }
1157 break;
1158 }
1160 case GDK_KEY_RELEASE:
1161 if (!tc->unimode && tc->imc && gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
1162 return TRUE;
1163 }
1164 break;
1165 default:
1166 break;
1167 }
1169 // if nobody consumed it so far
1170 if (((SPEventContextClass *) parent_class)->root_handler) { // and there's a handler in parent context,
1171 return ((SPEventContextClass *) parent_class)->root_handler(ec, event); // send event to parent
1172 } else {
1173 return FALSE; // return "I did nothing" value so that global shortcuts can be activated
1174 }
1175 }
1177 /**
1178 Attempts to paste system clipboard into the currently edited text, returns true on success
1179 */
1180 bool
1181 sp_text_paste_inline(SPEventContext *ec)
1182 {
1183 if (!SP_IS_TEXT_CONTEXT(ec))
1184 return false;
1186 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1188 if ((tc->text) || (tc->nascent_object)) {
1189 // there is an active text object in this context, or a new object was just created
1191 Glib::RefPtr<Gtk::Clipboard> refClipboard = Gtk::Clipboard::get();
1192 Glib::ustring const text = refClipboard->wait_for_text();
1194 if (!text.empty()) {
1196 if (!tc->text) { // create text if none (i.e. if nascent_object)
1197 sp_text_context_setup_text(tc);
1198 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1199 }
1201 // using indices is slow in ustrings. Whatever.
1202 Glib::ustring::size_type begin = 0;
1203 for ( ; ; ) {
1204 Glib::ustring::size_type end = text.find('\n', begin);
1205 if (end == Glib::ustring::npos) {
1206 if (begin != text.length())
1207 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());
1208 break;
1209 }
1210 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());
1211 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
1212 begin = end + 1;
1213 }
1214 sp_document_done(SP_DT_DOCUMENT(ec->desktop));
1216 return true;
1217 }
1218 } // FIXME: else create and select a new object under cursor!
1220 return false;
1221 }
1223 /**
1224 Gets the raw characters that comprise the currently selected text, converting line
1225 breaks into lf characters.
1226 */
1227 Glib::ustring
1228 sp_text_get_selected_text(SPEventContext const *ec)
1229 {
1230 if (!SP_IS_TEXT_CONTEXT(ec))
1231 return "";
1232 SPTextContext const *tc = SP_TEXT_CONTEXT(ec);
1233 if (tc->text == NULL)
1234 return "";
1236 return sp_te_get_string_multiline(tc->text, tc->text_sel_start, tc->text_sel_end);
1237 }
1239 /**
1240 Deletes the currently selected characters. Returns false if there is no
1241 text selection currently.
1242 */
1243 bool sp_text_delete_selection(SPEventContext *ec)
1244 {
1245 if (!SP_IS_TEXT_CONTEXT(ec))
1246 return false;
1247 SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1248 if (tc->text == NULL)
1249 return false;
1251 if (tc->text_sel_start == tc->text_sel_end)
1252 return false;
1253 tc->text_sel_start = tc->text_sel_end = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end);
1254 sp_text_context_update_cursor(tc);
1255 sp_text_context_update_text_selection(tc);
1256 return true;
1257 }
1259 /**
1260 * \param selection Should not be NULL.
1261 */
1262 static void
1263 sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc)
1264 {
1265 g_assert(selection != NULL);
1267 SPEventContext *ec = SP_EVENT_CONTEXT(tc);
1269 if (ec->shape_knot_holder) { // destroy knotholder
1270 sp_knot_holder_destroy(ec->shape_knot_holder);
1271 ec->shape_knot_holder = NULL;
1272 }
1274 if (ec->shape_repr) { // remove old listener
1275 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
1276 Inkscape::GC::release(ec->shape_repr);
1277 ec->shape_repr = 0;
1278 }
1280 SPItem *item = selection->singleItem();
1281 if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
1282 ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
1283 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
1284 if (shape_repr) {
1285 ec->shape_repr = shape_repr;
1286 Inkscape::GC::anchor(shape_repr);
1287 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
1288 }
1289 }
1291 if (tc->text && (item != tc->text)) {
1292 sp_text_context_forget_text(tc);
1293 }
1294 tc->text = NULL;
1296 if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) {
1297 tc->text = item;
1298 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1299 if (layout)
1300 tc->text_sel_start = tc->text_sel_end = layout->end();
1301 } else {
1302 tc->text = NULL;
1303 }
1305 // we update cursor without scrolling, because this position may not be final;
1306 // item_handler moves cusros to the point of click immediately
1307 sp_text_context_update_cursor(tc, false);
1308 sp_text_context_update_text_selection(tc);
1309 }
1311 static void
1312 sp_text_context_selection_modified(Inkscape::Selection *selection, guint flags, SPTextContext *tc)
1313 {
1314 sp_text_context_update_cursor(tc);
1315 sp_text_context_update_text_selection(tc);
1316 }
1318 static bool
1319 sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc)
1320 {
1321 if (tc->text == NULL)
1322 return false;
1323 if (tc->text_sel_start == tc->text_sel_end)
1324 return false; // will get picked up by the parent and applied to the whole text object
1326 sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
1327 sp_document_done(SP_DT_DOCUMENT(tc->desktop));
1328 sp_text_context_update_cursor(tc);
1329 sp_text_context_update_text_selection(tc);
1331 return true;
1332 }
1334 static int
1335 sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc)
1336 {
1337 if (tc->text == NULL)
1338 return QUERY_STYLE_NOTHING;
1339 const Inkscape::Text::Layout *layout = te_get_layout(tc->text);
1340 if (layout == NULL)
1341 return QUERY_STYLE_NOTHING;
1342 sp_text_context_validate_cursor_iterators(tc);
1344 GSList *styles_list = NULL;
1346 Inkscape::Text::Layout::iterator begin_it, end_it;
1347 if (tc->text_sel_start < tc->text_sel_end) {
1348 begin_it = tc->text_sel_start;
1349 end_it = tc->text_sel_end;
1350 } else {
1351 begin_it = tc->text_sel_end;
1352 end_it = tc->text_sel_start;
1353 }
1354 if (begin_it == end_it)
1355 if (!begin_it.prevCharacter())
1356 end_it.nextCharacter();
1357 for (Inkscape::Text::Layout::iterator it = begin_it ; it < end_it ; it.nextStartOfSpan()) {
1358 SPObject const *pos_obj = NULL;
1359 layout->getSourceOfCharacter(it, (void**)&pos_obj);
1360 if (pos_obj == NULL) continue;
1361 while (SP_OBJECT_STYLE(pos_obj) == NULL && SP_OBJECT_PARENT(pos_obj))
1362 pos_obj = SP_OBJECT_PARENT(pos_obj); // SPStrings don't have style
1363 styles_list = g_slist_prepend(styles_list, (gpointer)pos_obj);
1364 }
1366 int result = sp_desktop_query_style_from_list (styles_list, style, property);
1368 g_slist_free(styles_list);
1369 return result;
1370 }
1372 static void
1373 sp_text_context_validate_cursor_iterators(SPTextContext *tc)
1374 {
1375 if (tc->text == NULL)
1376 return;
1377 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1378 if (layout) { // undo can change the text length without us knowing it
1379 layout->validateIterator(&tc->text_sel_start);
1380 layout->validateIterator(&tc->text_sel_end);
1381 }
1382 }
1384 static void
1385 sp_text_context_update_cursor(SPTextContext *tc, bool scroll_to_see)
1386 {
1387 GdkRectangle im_cursor = { 0, 0, 1, 1 };
1389 if (tc->text) {
1390 NR::Point p0, p1;
1391 sp_te_get_cursor_coords(tc->text, tc->text_sel_end, p0, p1);
1392 NR::Point const d0 = p0 * sp_item_i2d_affine(SP_ITEM(tc->text));
1393 NR::Point const d1 = p1 * sp_item_i2d_affine(SP_ITEM(tc->text));
1395 // scroll to show cursor
1396 if (scroll_to_see) {
1397 NR::Point const dm = (d0 + d1) / 2;
1398 // unlike mouse moves, here we must scroll all the way at first shot, so we override the autoscrollspeed
1399 SP_EVENT_CONTEXT(tc)->desktop->scroll_to_point(&dm, 1.0);
1400 }
1402 sp_canvas_item_show(tc->cursor);
1403 sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), d0, d1);
1405 /* fixme: ... need another transformation to get canvas widget coordinate space? */
1406 im_cursor.x = (int) floor(d0[NR::X]);
1407 im_cursor.y = (int) floor(d0[NR::Y]);
1408 im_cursor.width = (int) floor(d1[NR::X]) - im_cursor.x;
1409 im_cursor.height = (int) floor(d1[NR::Y]) - im_cursor.y;
1411 tc->show = TRUE;
1412 tc->phase = 1;
1414 if (SP_IS_FLOWTEXT(tc->text)) {
1415 SPItem *frame = SP_FLOWTEXT(tc->text)->get_frame (NULL); // first frame only
1416 if (frame) {
1417 sp_canvas_item_show(tc->frame);
1418 SP_CTRLRECT(tc->frame)->setRectangle(sp_item_bbox_desktop(frame));
1419 }
1420 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type flowed text; <b>Enter</b> to start new paragraph."));
1421 } else {
1422 SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line."));
1423 }
1425 } else {
1426 sp_canvas_item_hide(tc->cursor);
1427 sp_canvas_item_hide(tc->frame);
1428 tc->show = FALSE;
1429 if (!tc->nascent_object) {
1430 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
1431 }
1432 }
1434 if (tc->imc) {
1435 gtk_im_context_set_cursor_location(tc->imc, &im_cursor);
1436 }
1437 SP_EVENT_CONTEXT(tc)->desktop->emitToolSubselectionChanged((gpointer)tc);
1438 }
1440 static void sp_text_context_update_text_selection(SPTextContext *tc)
1441 {
1442 for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ; it != tc->text_selection_quads.end() ; it++) {
1443 sp_canvas_item_hide(*it);
1444 gtk_object_destroy(*it);
1445 }
1446 tc->text_selection_quads.clear();
1448 std::vector<NR::Point> quads;
1449 if (tc->text != NULL)
1450 quads = sp_te_create_selection_quads(tc->text, tc->text_sel_start, tc->text_sel_end, sp_item_i2d_affine(tc->text));
1451 for (unsigned i = 0 ; i < quads.size() ; i += 4) {
1452 SPCanvasItem *quad_canvasitem;
1453 quad_canvasitem = sp_canvas_item_new(SP_DT_CONTROLS(tc->desktop), SP_TYPE_CTRLQUADR, NULL);
1454 sp_ctrlquadr_set_rgba32(SP_CTRLQUADR(quad_canvasitem), 0x000000ff);
1455 sp_ctrlquadr_set_coords(SP_CTRLQUADR(quad_canvasitem), quads[i], quads[i+1], quads[i+2], quads[i+3]);
1456 sp_canvas_item_show(quad_canvasitem);
1457 tc->text_selection_quads.push_back(quad_canvasitem);
1458 }
1459 }
1461 static gint
1462 sp_text_context_timeout(SPTextContext *tc)
1463 {
1464 if (tc->show) {
1465 if (tc->phase) {
1466 tc->phase = 0;
1467 sp_canvas_item_hide(tc->cursor);
1468 } else {
1469 tc->phase = 1;
1470 sp_canvas_item_show(tc->cursor);
1471 }
1472 }
1474 return TRUE;
1475 }
1477 static void
1478 sp_text_context_forget_text(SPTextContext *tc)
1479 {
1480 if (! tc->text) return;
1481 SPItem *ti = tc->text;
1482 /* We have to set it to zero,
1483 * or selection changed signal messes everything up */
1484 tc->text = NULL;
1485 if ((SP_IS_TEXT(ti) || SP_IS_FLOWTEXT(ti)) && sp_te_input_is_empty(ti)) {
1486 Inkscape::XML::Node *text_repr=SP_OBJECT_REPR(ti);
1487 // the repr may already have been unparented
1488 // if we were called e.g. as the result of
1489 // an undo or the element being removed from
1490 // the XML editor
1491 if ( text_repr && sp_repr_parent(text_repr) ) {
1492 sp_repr_unparent(text_repr);
1493 }
1494 }
1495 }
1497 gint
1498 sptc_focus_in(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
1499 {
1500 gtk_im_context_focus_in(tc->imc);
1501 return FALSE;
1502 }
1504 gint
1505 sptc_focus_out(GtkWidget *widget, GdkEventFocus *event, SPTextContext *tc)
1506 {
1507 gtk_im_context_focus_out(tc->imc);
1508 return FALSE;
1509 }
1511 static void
1512 sptc_commit(GtkIMContext *imc, gchar *string, SPTextContext *tc)
1513 {
1514 if (!tc->text) {
1515 sp_text_context_setup_text(tc);
1516 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1517 }
1519 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, string);
1520 sp_text_context_update_cursor(tc);
1521 sp_text_context_update_text_selection(tc);
1523 sp_document_done(SP_OBJECT_DOCUMENT(tc->text));
1524 }
1527 /*
1528 Local Variables:
1529 mode:c++
1530 c-file-style:"stroustrup"
1531 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1532 indent-tabs-mode:nil
1533 fill-column:99
1534 End:
1535 */
1536 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :