src/text-context.cpp

   1 #define __SP_TEXT_CONTEXT_C__
   2
   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  */
  15
  16 #ifdef HAVE_CONFIG_H
  17 # include <config.h>
  18 #endif
  19
  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>
  27
  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"
  52
  53 #include "text-editing.h"
  54
  55 #include "text-context.h"
  56
  57
  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);
  61
  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);
  66
  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);
  71
  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);
  77
  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);
  81
  82 static SPEventContextClass *parent_class;
  83
  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 }
 103
 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;
 109
 110     parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);
 111
 112     object_class->dispose = sp_text_context_dispose;
 113
 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 }
 119
 120 static void
 121 sp_text_context_init(SPTextContext *tc)
 122 {
 123     SPEventContext *event_context = SP_EVENT_CONTEXT(tc);
 124
 125     event_context->cursor_shape = cursor_text_xpm;
 126     event_context->hot_x = 7;
 127     event_context->hot_y = 7;
 128
 129     event_context->xp = 0;
 130     event_context->yp = 0;
 131     event_context->tolerance = 0;
 132     event_context->within_tolerance = false;
 133
 134     event_context->shape_repr = NULL;
 135     event_context->shape_knot_holder = NULL;
 136
 137     tc->imc = NULL;
 138
 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*>();
 144
 145     tc->unimode = false;
 146
 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;
 158
 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 }
 164
 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     }
 184
 185     Inkscape::Rubberband::get()->stop();
 186
 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 }
 197
 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 };
 205
 206 static void
 207 sp_text_context_setup(SPEventContext *ec)
 208 {
 209     SPTextContext *tc = SP_TEXT_CONTEXT(ec);
 210     SPDesktop *desktop = ec->desktop;
 211
 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);
 216
 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);
 221
 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);
 226
 227     tc->timeout = gtk_timeout_add(250, (GtkFunction) sp_text_context_timeout, ec);
 228
 229     tc->imc = gtk_im_multicontext_new();
 230     if (tc->imc) {
 231         GtkWidget *canvas = GTK_WIDGET(sp_desktop_canvas(desktop));
 232
 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);
 241
 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);
 245
 246         if (GTK_WIDGET_HAS_FOCUS(canvas)) {
 247             sptc_focus_in(canvas, NULL, tc);
 248         }
 249     }
 250
 251     if (((SPEventContextClass *) parent_class)->setup)
 252         ((SPEventContextClass *) parent_class)->setup(ec);
 253
 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     }
 264
 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         );
 277
 278     sp_text_context_selection_changed(sp_desktop_selection(desktop), tc);
 279
 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 }
 287
 288 static void
 289 sp_text_context_finish(SPEventContext *ec)
 290 {
 291     SPTextContext *tc = SP_TEXT_CONTEXT(ec);
 292
 293     if (ec->desktop) {
 294         sp_signal_disconnect_by_data(sp_desktop_canvas(ec->desktop), tc);
 295     }
 296
 297     ec->enableGrDrag(false);
 298
 299     tc->style_set_connection.disconnect();
 300     tc->style_query_connection.disconnect();
 301     tc->sel_changed_connection.disconnect();
 302     tc->sel_modified_connection.disconnect();
 303
 304     sp_text_context_forget_text(SP_TEXT_CONTEXT(ec));
 305
 306     if (tc->imc) {
 307         g_object_unref(G_OBJECT(tc->imc));
 308         tc->imc = NULL;
 309     }
 310
 311     if (tc->timeout) {
 312         gtk_timeout_remove(tc->timeout);
 313         tc->timeout = 0;
 314     }
 315
 316     if (tc->cursor) {
 317         gtk_object_destroy(GTK_OBJECT(tc->cursor));
 318         tc->cursor = NULL;
 319     }
 320
 321     if (tc->indicator) {
 322         gtk_object_destroy(GTK_OBJECT(tc->indicator));
 323         tc->indicator = NULL;
 324     }
 325
 326     if (tc->frame) {
 327         gtk_object_destroy(GTK_OBJECT(tc->frame));
 328         tc->frame = NULL;
 329     }
 330
 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 }
 338
 339
 340 static gint
 341 sp_text_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
 342 {
 343     SPTextContext *tc = SP_TEXT_CONTEXT(event_context);
 344     SPDesktop *desktop = event_context->desktop;
 345     SPItem *item_ungrouped;
 346
 347     gint ret = FALSE;
 348
 349     sp_text_context_validate_cursor_iterators(tc);
 350
 351     switch (event->type) {
 352         case GDK_BUTTON_PRESS:
 353             if (event->button.button == 1 && !event_context->space_panning) {
 354                 // find out clicked item, disregarding groups
 355                 item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
 356                 if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
 357                     sp_desktop_selection(desktop)->set(item_ungrouped);
 358                     if (tc->text) {
 359                         // find out click point in document coordinates
 360                         NR::Point p = desktop->w2d(NR::Point(event->button.x, event->button.y));
 361                         // set the cursor closest to that point
 362                         tc->text_sel_start = tc->text_sel_end = sp_te_get_position_by_coords(tc->text, p);
 363                         // update display
 364                         sp_text_context_update_cursor(tc);
 365                         sp_text_context_update_text_selection(tc);
 366                         tc->dragging = 1;
 367                     }
 368                     ret = TRUE;
 369                 }
 370             }
 371             break;
 372         case GDK_2BUTTON_PRESS:
 373             if (event->button.button == 1 && tc->text) {
 374                 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
 375                 if (layout) {
 376                     if (!layout->isStartOfWord(tc->text_sel_start))
 377                         tc->text_sel_start.prevStartOfWord();
 378                     if (!layout->isEndOfWord(tc->text_sel_end))
 379                         tc->text_sel_end.nextEndOfWord();
 380                     sp_text_context_update_cursor(tc);
 381                     sp_text_context_update_text_selection(tc);
 382                     tc->dragging = 2;
 383                     ret = TRUE;
 384                 }
 385             }
 386             break;
 387         case GDK_3BUTTON_PRESS:
 388             if (event->button.button == 1 && tc->text) {
 389                 tc->text_sel_start.thisStartOfLine();
 390                 tc->text_sel_end.thisEndOfLine();
 391                 sp_text_context_update_cursor(tc);
 392                 sp_text_context_update_text_selection(tc);
 393                 tc->dragging = 3;
 394                 ret = TRUE;
 395             }
 396             break;
 397         case GDK_BUTTON_RELEASE:
 398             if (event->button.button == 1 && tc->dragging && !event_context->space_panning) {
 399                 tc->dragging = 0;
 400                 ret = TRUE;
 401             }
 402             break;
 403         case GDK_MOTION_NOTIFY:
 404             if (event->motion.state & GDK_BUTTON1_MASK && tc->dragging && !event_context->space_panning) {
 405                 Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
 406                 if (!layout) break;
 407                 // find out click point in document coordinates
 408                 NR::Point p = desktop->w2d(NR::Point(event->button.x, event->button.y));
 409                 // set the cursor closest to that point
 410                 Inkscape::Text::Layout::iterator new_end = sp_te_get_position_by_coords(tc->text, p);
 411                 if (tc->dragging == 2) {
 412                     // double-click dragging: go by word
 413                     if (new_end < tc->text_sel_start) {
 414                         if (!layout->isStartOfWord(new_end))
 415                             new_end.prevStartOfWord();
 416                     } else
 417                         if (!layout->isEndOfWord(new_end))
 418                             new_end.nextEndOfWord();
 419                 } else if (tc->dragging == 3) {
 420                     // triple-click dragging: go by line
 421                     if (new_end < tc->text_sel_start)
 422                         new_end.thisStartOfLine();
 423                     else
 424                         new_end.thisEndOfLine();
 425                 }
 426                 // update display
 427                 if (tc->text_sel_end != new_end) {
 428                     tc->text_sel_end = new_end;
 429                     sp_text_context_update_cursor(tc);
 430                     sp_text_context_update_text_selection(tc);
 431                 }
 432                 gobble_motion_events(GDK_BUTTON1_MASK);
 433                 ret = TRUE;
 434                 break;
 435             }
 436             // find out item under mouse, disregarding groups
 437             item_ungrouped = desktop->item_at_point(NR::Point(event->button.x, event->button.y), TRUE);
 438             if (SP_IS_TEXT(item_ungrouped) || SP_IS_FLOWTEXT(item_ungrouped)) {
 439                 sp_canvas_item_show(tc->indicator);
 440                 NR::Maybe<NR::Rect> ibbox = sp_item_bbox_desktop(item_ungrouped);
 441                 if (ibbox) {
 442                     SP_CTRLRECT(tc->indicator)->setRectangle(*ibbox);
 443                 }
 444
 445                 event_context->cursor_shape = cursor_text_insert_xpm;
 446                 event_context->hot_x = 7;
 447                 event_context->hot_y = 10;
 448                 sp_event_context_update_cursor(event_context);
 449                 sp_text_context_update_text_selection(tc);
 450
 451                 if (SP_IS_TEXT (item_ungrouped)) {
 452                     desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the text, <b>drag</b> to select part of the text."));
 453                 } else {
 454                     desktop->event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to edit the flowed text, <b>drag</b> to select part of the text."));
 455                 }
 456
 457                 tc->over_text = true;
 458
 459                 ret = TRUE;
 460             }
 461             break;
 462         default:
 463             break;
 464     }
 465
 466     if (!ret) {
 467         if (((SPEventContextClass *) parent_class)->item_handler)
 468             ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
 469     }
 470
 471     return ret;
 472 }
 473
 474 static void
 475 sp_text_context_setup_text(SPTextContext *tc)
 476 {
 477     SPEventContext *ec = SP_EVENT_CONTEXT(tc);
 478
 479     /* Create <text> */
 480     Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_EVENT_CONTEXT_DESKTOP(ec)->doc());
 481     Inkscape::XML::Node *rtext = xml_doc->createElement("svg:text");
 482     rtext->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
 483
 484     /* Set style */
 485     sp_desktop_apply_style_tool(SP_EVENT_CONTEXT_DESKTOP(ec), rtext, "tools.text", true);
 486
 487     sp_repr_set_svg_double(rtext, "x", tc->pdoc[NR::X]);
 488     sp_repr_set_svg_double(rtext, "y", tc->pdoc[NR::Y]);
 489
 490     /* Create <tspan> */
 491     Inkscape::XML::Node *rtspan = xml_doc->createElement("svg:tspan");
 492     rtspan->setAttribute("sodipodi:role", "line"); // otherwise, why bother creating the tspan?
 493     rtext->addChild(rtspan, NULL);
 494     Inkscape::GC::release(rtspan);
 495
 496     /* Create TEXT */
 497     Inkscape::XML::Node *rstring = xml_doc->createTextNode("");
 498     rtspan->addChild(rstring, NULL);
 499     Inkscape::GC::release(rstring);
 500     SPItem *text_item = SP_ITEM(ec->desktop->currentLayer()->appendChildRepr(rtext));
 501     /* fixme: Is selection::changed really immediate? */
 502     /* yes, it's immediate .. why does it matter? */
 503     sp_desktop_selection(ec->desktop)->set(text_item);
 504     Inkscape::GC::release(rtext);
 505     text_item->transform = SP_ITEM(ec->desktop->currentRoot())->getRelativeTransform(ec->desktop->currentLayer());
 506     text_item->updateRepr();
 507     sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
 508                      _("Create text"));
 509 }
 510
 511 /**
 512  * Insert the character indicated by tc.uni to replace the current selection,
 513  * and reset tc.uni/tc.unipos to empty string.
 514  *
 515  * \pre tc.uni/tc.unipos non-empty.
 516  */
 517 static void
 518 insert_uni_char(SPTextContext *const tc)
 519 {
 520     g_return_if_fail(tc->unipos
 521                      && tc->unipos < sizeof(tc->uni)
 522                      && tc->uni[tc->unipos] == '\0');
 523     unsigned int uv;
 524     sscanf(tc->uni, "%x", &uv);
 525     tc->unipos = 0;
 526     tc->uni[tc->unipos] = '\0';
 527
 528     if ( !g_unichar_isprint(static_cast<gunichar>(uv))
 529          && !(g_unichar_validate(static_cast<gunichar>(uv)) && (g_unichar_type(static_cast<gunichar>(uv)) == G_UNICODE_PRIVATE_USE) ) ) {
 530         // This may be due to bad input, so it goes to statusbar.
 531         tc->desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE,
 532                                            _("Non-printable character"));
 533     } else {
 534         if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
 535             sp_text_context_setup_text(tc);
 536             tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
 537         }
 538
 539         gchar u[10];
 540         guint const len = g_unichar_to_utf8(uv, u);
 541         u[len] = '\0';
 542
 543         tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, u);
 544         sp_text_context_update_cursor(tc);
 545         sp_text_context_update_text_selection(tc);
 546         sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_DIALOG_TRANSFORM,
 547                          _("Insert Unicode character"));
 548     }
 549 }
 550
 551 static void
 552 hex_to_printable_utf8_buf(char const *const hex, char *utf8)
 553 {
 554     unsigned int uv;
 555     sscanf(hex, "%x", &uv);
 556     if (!g_unichar_isprint((gunichar) uv)) {
 557         uv = 0xfffd;
 558     }
 559     guint const len = g_unichar_to_utf8(uv, utf8);
 560     utf8[len] = '\0';
 561 }
 562
 563 static void
 564 show_curr_uni_char(SPTextContext *const tc)
 565 {
 566     g_return_if_fail(tc->unipos < sizeof(tc->uni)
 567                      && tc->uni[tc->unipos] == '\0');
 568     if (tc->unipos) {
 569         char utf8[10];
 570         hex_to_printable_utf8_buf(tc->uni, utf8);
 571
 572         /* Status bar messages are in pango markup, so we need xml escaping. */
 573         if (utf8[1] == '\0') {
 574             switch(utf8[0]) {
 575                 case '<': strcpy(utf8, "&lt;"); break;
 576                 case '>': strcpy(utf8, "&gt;"); break;
 577                 case '&': strcpy(utf8, "&amp;"); break;
 578                 default: break;
 579             }
 580         }
 581         tc->defaultMessageContext()->setF(Inkscape::NORMAL_MESSAGE,
 582                                           _("Unicode (<b>Enter</b> to finish): %s: %s"), tc->uni, utf8);
 583     } else {
 584         tc->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));
 585     }
 586 }
 587
 588 static gint
 589 sp_text_context_root_handler(SPEventContext *const event_context, GdkEvent *const event)
 590 {
 591     SPTextContext *const tc = SP_TEXT_CONTEXT(event_context);
 592
 593     SPDesktop *desktop = event_context->desktop;
 594
 595     sp_canvas_item_hide(tc->indicator);
 596
 597     sp_text_context_validate_cursor_iterators(tc);
 598
 599     event_context->tolerance = prefs_get_int_attribute_limited("options.dragtolerance", "value", 0, 0, 100);
 600
 601     switch (event->type) {
 602         case GDK_BUTTON_PRESS:
 603             if (event->button.button == 1 && !event_context->space_panning) {
 604
 605                 if (Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false) {
 606                     return TRUE;
 607                 }
 608
 609                 // save drag origin
 610                 event_context->xp = (gint) event->button.x;
 611                 event_context->yp = (gint) event->button.y;
 612                 event_context->within_tolerance = true;
 613
 614                 NR::Point const button_pt(event->button.x, event->button.y);
 615                 tc->p0 = desktop->w2d(button_pt);
 616                 Inkscape::Rubberband::get()->start(desktop, tc->p0);
 617                 sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),
 618                                     GDK_KEY_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
 619                                         GDK_POINTER_MOTION_MASK,
 620                                     NULL, event->button.time);
 621                 tc->grabbed = SP_CANVAS_ITEM(desktop->acetate);
 622                 tc->creating = 1;
 623
 624                 /* Processed */
 625                 return TRUE;
 626             }
 627             break;
 628         case GDK_MOTION_NOTIFY:
 629             if (tc->over_text) {
 630                 tc->over_text = 0;
 631                 // update cursor and statusbar: we are not over a text object now
 632                 event_context->cursor_shape = cursor_text_xpm;
 633                 event_context->hot_x = 7;
 634                 event_context->hot_y = 7;
 635                 sp_event_context_update_cursor(event_context);
 636                 desktop->event_context->defaultMessageContext()->clear();
 637             }
 638
 639             if (tc->creating && event->motion.state & GDK_BUTTON1_MASK && !event_context->space_panning) {
 640                 if ( event_context->within_tolerance
 641                      && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
 642                      && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
 643                     break; // do not drag if we're within tolerance from origin
 644                 }
 645                 // Once the user has moved farther than tolerance from the original location
 646                 // (indicating they intend to draw, not click), then always process the
 647                 // motion notify coordinates as given (no snapping back to origin)
 648                 event_context->within_tolerance = false;
 649
 650                 NR::Point const motion_pt(event->motion.x, event->motion.y);
 651                 NR::Point const p = desktop->w2d(motion_pt);
 652
 653                 Inkscape::Rubberband::get()->move(p);
 654                 gobble_motion_events(GDK_BUTTON1_MASK);
 655
 656                 // status text
 657                 GString *xs = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::X]), desktop->namedview->getDefaultMetric());
 658                 GString *ys = SP_PX_TO_METRIC_STRING(fabs((p - tc->p0)[NR::Y]), desktop->namedview->getDefaultMetric());
 659                 event_context->_message_context->setF(Inkscape::IMMEDIATE_MESSAGE, _("<b>Flowed text frame</b>: %s &#215; %s"), xs->str, ys->str);
 660                 g_string_free(xs, FALSE);
 661                 g_string_free(ys, FALSE);
 662
 663             }
 664             break;
 665         case GDK_BUTTON_RELEASE:
 666             if (event->button.button == 1 && !event_context->space_panning) {
 667
 668                 if (tc->grabbed) {
 669                     sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
 670                     tc->grabbed = NULL;
 671                 }
 672
 673                 Inkscape::Rubberband::get()->stop();
 674
 675                 if (tc->creating && event_context->within_tolerance) {
 676                     /* Button 1, set X & Y & new item */
 677                     sp_desktop_selection(desktop)->clear();
 678                     NR::Point dtp = desktop->w2d(NR::Point(event->button.x, event->button.y));
 679                     tc->pdoc = sp_desktop_dt2root_xy_point(desktop, dtp);
 680
 681                     tc->show = TRUE;
 682                     tc->phase = 1;
 683                     tc->nascent_object = 1; // new object was just created
 684
 685                     /* Cursor */
 686                     sp_canvas_item_show(tc->cursor);
 687                     // Cursor height is defined by the new text object's font size; it needs to be set
 688                     // articifically here, for the text object does not exist yet:
 689                     double cursor_height = sp_desktop_get_font_size_tool(desktop);
 690                     sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), dtp, dtp + NR::Point(0, cursor_height));
 691                     event_context->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line.")); // FIXME:: this is a copy of a string from _update_cursor below, do not desync
 692
 693                     event_context->within_tolerance = false;
 694                 } else if (tc->creating) {
 695                     NR::Point const button_pt(event->button.x, event->button.y);
 696                     NR::Point p1 = desktop->w2d(button_pt);
 697                     double cursor_height = sp_desktop_get_font_size_tool(desktop);
 698                     if (fabs(p1[NR::Y] - tc->p0[NR::Y]) > cursor_height) {
 699                         // otherwise even one line won't fit; most probably a slip of hand (even if bigger than tolerance)
 700                         SPItem *ft = create_flowtext_with_internal_frame (desktop, tc->p0, p1);
 701                         /* Set style */
 702                         sp_desktop_apply_style_tool(desktop, SP_OBJECT_REPR(ft), "tools.text", true);
 703                         sp_desktop_selection(desktop)->set(ft);
 704                         desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Flowed text is created."));
 705                         sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 706                                          _("Create flowed text"));
 707                     } else {
 708                         desktop->messageStack()->flash(Inkscape::ERROR_MESSAGE, _("The frame is <b>too small</b> for the current font size. Flowed text not created."));
 709                     }
 710                 }
 711                 tc->creating = false;
 712                 return TRUE;
 713             }
 714             break;
 715         case GDK_KEY_PRESS: {
 716             guint const group0_keyval = get_group0_keyval(&event->key);
 717
 718             if (group0_keyval == GDK_KP_Add ||
 719                 group0_keyval == GDK_KP_Subtract) {
 720                 if (!(event->key.state & GDK_MOD2_MASK)) // mod2 is NumLock; if on, type +/- keys
 721                     break; // otherwise pass on keypad +/- so they can zoom
 722             }
 723
 724             if ((tc->text) || (tc->nascent_object)) {
 725                 // there is an active text object in this context, or a new object was just created
 726
 727                 if (tc->unimode || !tc->imc
 728                     || (MOD__CTRL && MOD__SHIFT)    // input methods tend to steal this for unimode,
 729                                                     // but we have our own so make sure they don't swallow it
 730                     || !gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
 731                     //IM did not consume the key, or we're in unimode
 732
 733                         if (!MOD__CTRL_ONLY && tc->unimode) {
 734                             /* TODO: ISO 14755 (section 3 Definitions) says that we should also
 735                                accept the first 6 characters of alphabets other than the latin
 736                                alphabet "if the Latin alphabet is not used".  The below is also
 737                                reasonable (viz. hope that the user's keyboard includes latin
 738                                characters and force latin interpretation -- just as we do for our
 739                                keyboard shortcuts), but differs from the ISO 14755
 740                                recommendation. */
 741                             switch (group0_keyval) {
 742                                 case GDK_space:
 743                                 case GDK_KP_Space: {
 744                                     if (tc->unipos) {
 745                                         insert_uni_char(tc);
 746                                     }
 747                                     /* Stay in unimode. */
 748                                     show_curr_uni_char(tc);
 749                                     return TRUE;
 750                                 }
 751
 752                                 case GDK_BackSpace: {
 753                                     g_return_val_if_fail(tc->unipos < sizeof(tc->uni), TRUE);
 754                                     if (tc->unipos) {
 755                                         tc->uni[--tc->unipos] = '\0';
 756                                     }
 757                                     show_curr_uni_char(tc);
 758                                     return TRUE;
 759                                 }
 760
 761                                 case GDK_Return:
 762                                 case GDK_KP_Enter: {
 763                                     if (tc->unipos) {
 764                                         insert_uni_char(tc);
 765                                     }
 766                                     /* Exit unimode. */
 767                                     tc->unimode = false;
 768                                     event_context->defaultMessageContext()->clear();
 769                                     return TRUE;
 770                                 }
 771
 772                                 case GDK_Escape: {
 773                                     // Cancel unimode.
 774                                     tc->unimode = false;
 775                                     gtk_im_context_reset(tc->imc);
 776                                     event_context->defaultMessageContext()->clear();
 777                                     return TRUE;
 778                                 }
 779
 780                                 case GDK_Shift_L:
 781                                 case GDK_Shift_R:
 782                                     break;
 783
 784                                 default: {
 785                                     if (g_ascii_isxdigit(group0_keyval)) {
 786                                         g_return_val_if_fail(tc->unipos < sizeof(tc->uni) - 1, TRUE);
 787                                         tc->uni[tc->unipos++] = group0_keyval;
 788                                         tc->uni[tc->unipos] = '\0';
 789                                         if (tc->unipos == 8) {
 790                                             /* This behaviour is partly to allow us to continue to
 791                                                use a fixed-length buffer for tc->uni.  Reason for
 792                                                choosing the number 8 is that it's the length of
 793                                                ``canonical form'' mentioned in the ISO 14755 spec.
 794                                                An advantage over choosing 6 is that it allows using
 795                                                backspace for typos & misremembering when entering a
 796                                                6-digit number. */
 797                                             insert_uni_char(tc);
 798                                         }
 799                                         show_curr_uni_char(tc);
 800                                         return TRUE;
 801                                     } else {
 802                                         /* The intent is to ignore but consume characters that could be
 803                                            typos for hex digits.  Gtk seems to ignore & consume all
 804                                            non-hex-digits, and we do similar here.  Though note that some
 805                                            shortcuts (like keypad +/- for zoom) get processed before
 806                                            reaching this code. */
 807                                         return TRUE;
 808                                     }
 809                                 }
 810                             }
 811                         }
 812
 813                         bool (Inkscape::Text::Layout::iterator::*cursor_movement_operator)() = NULL;
 814
 815                         /* Neither unimode nor IM consumed key; process text tool shortcuts */
 816                         switch (group0_keyval) {
 817                             case GDK_x:
 818                             case GDK_X:
 819                                 if (MOD__ALT_ONLY) {
 820                                     desktop->setToolboxFocusTo ("altx-text");
 821                                     return TRUE;
 822                                 }
 823                                 break;
 824                             case GDK_space:
 825                                 if (MOD__CTRL_ONLY) {
 826                                     /* No-break space */
 827                                     if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
 828                                         sp_text_context_setup_text(tc);
 829                                         tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
 830                                     }
 831                                     tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, "\302\240");
 832                                     sp_text_context_update_cursor(tc);
 833                                     sp_text_context_update_text_selection(tc);
 834                                     desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("No-break space"));
 835                                     sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 836                                                      _("Insert no-break space"));
 837                                     return TRUE;
 838                                 }
 839                                 break;
 840                             case GDK_U:
 841                             case GDK_u:
 842                                 if (MOD__CTRL_ONLY || (MOD__CTRL && MOD__SHIFT)) {
 843                                     if (tc->unimode) {
 844                                         tc->unimode = false;
 845                                         event_context->defaultMessageContext()->clear();
 846                                     } else {
 847                                         tc->unimode = true;
 848                                         tc->unipos = 0;
 849                                         event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("Unicode (<b>Enter</b> to finish): "));
 850                                     }
 851                                     if (tc->imc) {
 852                                         gtk_im_context_reset(tc->imc);
 853                                     }
 854                                     return TRUE;
 855                                 }
 856                                 break;
 857                             case GDK_B:
 858                             case GDK_b:
 859                                 if (MOD__CTRL_ONLY && tc->text) {
 860                                     SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
 861                                     SPCSSAttr *css = sp_repr_css_attr_new();
 862                                     if (style->font_weight.computed == SP_CSS_FONT_WEIGHT_NORMAL
 863                                         || style->font_weight.computed == SP_CSS_FONT_WEIGHT_100
 864                                         || style->font_weight.computed == SP_CSS_FONT_WEIGHT_200
 865                                         || style->font_weight.computed == SP_CSS_FONT_WEIGHT_300
 866                                         || style->font_weight.computed == SP_CSS_FONT_WEIGHT_400)
 867                                         sp_repr_css_set_property(css, "font-weight", "bold");
 868                                     else
 869                                         sp_repr_css_set_property(css, "font-weight", "normal");
 870                                     sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
 871                                     sp_repr_css_attr_unref(css);
 872                                     sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 873                                                      _("Make bold"));
 874                                     sp_text_context_update_cursor(tc);
 875                                     sp_text_context_update_text_selection(tc);
 876                                     return TRUE;
 877                                 }
 878                                 break;
 879                             case GDK_I:
 880                             case GDK_i:
 881                                 if (MOD__CTRL_ONLY && tc->text) {
 882                                     SPStyle const *style = sp_te_style_at_position(tc->text, std::min(tc->text_sel_start, tc->text_sel_end));
 883                                     SPCSSAttr *css = sp_repr_css_attr_new();
 884                                     if (style->font_style.computed == SP_CSS_FONT_STYLE_NORMAL)
 885                                         sp_repr_css_set_property(css, "font-style", "italic");
 886                                     else
 887                                         sp_repr_css_set_property(css, "font-style", "normal");
 888                                     sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
 889                                     sp_repr_css_attr_unref(css);
 890                                     sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 891                                                      _("Make italic"));
 892                                     sp_text_context_update_cursor(tc);
 893                                     sp_text_context_update_text_selection(tc);
 894                                     return TRUE;
 895                                 }
 896                                 break;
 897
 898                             case GDK_A:
 899                             case GDK_a:
 900                                 if (MOD__CTRL_ONLY && tc->text) {
 901                                     Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
 902                                     if (layout) {
 903                                         tc->text_sel_start = layout->begin();
 904                                         tc->text_sel_end = layout->end();
 905                                         sp_text_context_update_cursor(tc);
 906                                         sp_text_context_update_text_selection(tc);
 907                                         return TRUE;
 908                                     }
 909                                 }
 910                                 break;
 911
 912                             case GDK_Return:
 913                             case GDK_KP_Enter:
 914                             {
 915                                 if (!tc->text) { // printable key; create text if none (i.e. if nascent_object)
 916                                     sp_text_context_setup_text(tc);
 917                                     tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
 918                                 }
 919
 920                                 iterator_pair enter_pair;
 921                                 bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, enter_pair);
 922                                 tc->text_sel_start = tc->text_sel_end = enter_pair.first;
 923
 924                                 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
 925
 926                                 sp_text_context_update_cursor(tc);
 927                                 sp_text_context_update_text_selection(tc);
 928                                 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 929                                                  _("New line"));
 930                                 return TRUE;
 931                             }
 932                             case GDK_BackSpace:
 933                                 if (tc->text) { // if nascent_object, do nothing, but return TRUE; same for all other delete and move keys
 934
 935                                     bool noSelection = false;
 936
 937                                         if (tc->text_sel_start == tc->text_sel_end) {
 938                                         tc->text_sel_start.prevCursorPosition();
 939                                         noSelection = true;
 940                                     }
 941
 942                                         iterator_pair bspace_pair;
 943                                         bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, bspace_pair);
 944
 945                                     if (noSelection) {
 946                                         if (success) {
 947                                             tc->text_sel_start = tc->text_sel_end = bspace_pair.first;
 948                                         } else { // nothing deleted
 949                                             tc->text_sel_start = tc->text_sel_end = bspace_pair.second;
 950                                         }
 951                                     } else {
 952                                         if (success) {
 953                                             tc->text_sel_start = tc->text_sel_end = bspace_pair.first;
 954                                         } else { // nothing deleted
 955                                             tc->text_sel_start = bspace_pair.first;
 956                                             tc->text_sel_end = bspace_pair.second;
 957                                         }
 958                                     }
 959
 960                                     sp_text_context_update_cursor(tc);
 961                                     sp_text_context_update_text_selection(tc);
 962                                     sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 963                                                      _("Backspace"));
 964                                 }
 965                                 return TRUE;
 966                             case GDK_Delete:
 967                             case GDK_KP_Delete:
 968                                 if (tc->text) {
 969                                     bool noSelection = false;
 970
 971                                     if (tc->text_sel_start == tc->text_sel_end) {
 972                                         tc->text_sel_end.nextCursorPosition();
 973                                         noSelection = true;
 974                                     }
 975
 976                                     iterator_pair del_pair;
 977                                     bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, del_pair);
 978
 979                                     if (noSelection) {
 980                                         tc->text_sel_start = tc->text_sel_end = del_pair.first;
 981                                     } else {
 982                                         if (success) {
 983                                             tc->text_sel_start = tc->text_sel_end = del_pair.first;
 984                                         } else { // nothing deleted
 985                                             tc->text_sel_start = del_pair.first;
 986                                             tc->text_sel_end = del_pair.second;
 987                                         }
 988                                     }
 989
 990
 991                                     sp_text_context_update_cursor(tc);
 992                                     sp_text_context_update_text_selection(tc);
 993                                     sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_TEXT,
 994                                                      _("Delete"));
 995                                 }
 996                                 return TRUE;
 997                             case GDK_Left:
 998                             case GDK_KP_Left:
 999                             case GDK_KP_4:
1000                                 if (tc->text) {
1001                                     if (MOD__ALT) {
1002                                         if (MOD__SHIFT)
1003                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(-10, 0));
1004                                         else
1005                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(-1, 0));
1006                                         sp_text_context_update_cursor(tc);
1007                                         sp_text_context_update_text_selection(tc);
1008                                         sp_document_maybe_done(sp_desktop_document(desktop), "kern:left", SP_VERB_CONTEXT_TEXT,
1009                                                                _("Kern to the left"));
1010                                     } else {
1011                                         cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorLeftWithControl
1012                                                                              : &Inkscape::Text::Layout::iterator::cursorLeft;
1013                                         break;
1014                                     }
1015                                 }
1016                                 return TRUE;
1017                             case GDK_Right:
1018                             case GDK_KP_Right:
1019                             case GDK_KP_6:
1020                                 if (tc->text) {
1021                                     if (MOD__ALT) {
1022                                         if (MOD__SHIFT)
1023                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(10, 0));
1024                                         else
1025                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(1, 0));
1026                                         sp_text_context_update_cursor(tc);
1027                                         sp_text_context_update_text_selection(tc);
1028                                         sp_document_maybe_done(sp_desktop_document(desktop), "kern:right", SP_VERB_CONTEXT_TEXT,
1029                                                                _("Kern to the right"));
1030                                     } else {
1031                                         cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorRightWithControl
1032                                                                              : &Inkscape::Text::Layout::iterator::cursorRight;
1033                                         break;
1034                                     }
1035                                 }
1036                                 return TRUE;
1037                             case GDK_Up:
1038                             case GDK_KP_Up:
1039                             case GDK_KP_8:
1040                                 if (tc->text) {
1041                                     if (MOD__ALT) {
1042                                         if (MOD__SHIFT)
1043                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, -10));
1044                                         else
1045                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, -1));
1046                                         sp_text_context_update_cursor(tc);
1047                                         sp_text_context_update_text_selection(tc);
1048                                         sp_document_maybe_done(sp_desktop_document(desktop), "kern:up", SP_VERB_CONTEXT_TEXT,
1049                                                                _("Kern up"));
1050
1051                                     } else {
1052                                         cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorUpWithControl
1053                                                                              : &Inkscape::Text::Layout::iterator::cursorUp;
1054                                         break;
1055                                     }
1056                                 }
1057                                 return TRUE;
1058                             case GDK_Down:
1059                             case GDK_KP_Down:
1060                             case GDK_KP_2:
1061                                 if (tc->text) {
1062                                     if (MOD__ALT) {
1063                                         if (MOD__SHIFT)
1064                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, 10));
1065                                         else
1066                                             sp_te_adjust_kerning_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, NR::Point(0, 1));
1067                                         sp_text_context_update_cursor(tc);
1068                                         sp_text_context_update_text_selection(tc);
1069                                         sp_document_maybe_done(sp_desktop_document(desktop), "kern:down", SP_VERB_CONTEXT_TEXT,
1070                                                                _("Kern down"));
1071
1072                                     } else {
1073                                         cursor_movement_operator = MOD__CTRL ? &Inkscape::Text::Layout::iterator::cursorDownWithControl
1074                                                                              : &Inkscape::Text::Layout::iterator::cursorDown;
1075                                         break;
1076                                     }
1077                                 }
1078                                 return TRUE;
1079                             case GDK_Home:
1080                             case GDK_KP_Home:
1081                                 if (tc->text) {
1082                                     if (MOD__CTRL)
1083                                         cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfShape;
1084                                     else
1085                                         cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisStartOfLine;
1086                                     break;
1087                                 }
1088                                 return TRUE;
1089                             case GDK_End:
1090                             case GDK_KP_End:
1091                                 if (tc->text) {
1092                                     if (MOD__CTRL)
1093                                         cursor_movement_operator = &Inkscape::Text::Layout::iterator::nextStartOfShape;
1094                                     else
1095                                         cursor_movement_operator = &Inkscape::Text::Layout::iterator::thisEndOfLine;
1096                                     break;
1097                                 }
1098                                 return TRUE;
1099                             case GDK_Escape:
1100                                 if (tc->creating) {
1101                                     tc->creating = 0;
1102                                     if (tc->grabbed) {
1103                                         sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1104                                         tc->grabbed = NULL;
1105                                     }
1106                                     Inkscape::Rubberband::get()->stop();
1107                                 } else {
1108                                     sp_desktop_selection(desktop)->clear();
1109                                 }
1110                                 tc->nascent_object = FALSE;
1111                                 return TRUE;
1112                             case GDK_bracketleft:
1113                                 if (tc->text) {
1114                                     if (MOD__ALT || MOD__CTRL) {
1115                                         if (MOD__ALT) {
1116                                             if (MOD__SHIFT) {
1117                                                 // FIXME: alt+shift+[] does not work, don't know why
1118                                                 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);
1119                                             } else {
1120                                                 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);
1121                                             }
1122                                         } else {
1123                                             sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -90);
1124                                         }
1125                                         sp_document_maybe_done(sp_desktop_document(desktop), "textrot:ccw", SP_VERB_CONTEXT_TEXT,
1126                                                                _("Rotate counterclockwise"));
1127                                         sp_text_context_update_cursor(tc);
1128                                         sp_text_context_update_text_selection(tc);
1129                                         return TRUE;
1130                                     }
1131                                 }
1132                                 break;
1133                             case GDK_bracketright:
1134                                 if (tc->text) {
1135                                     if (MOD__ALT || MOD__CTRL) {
1136                                         if (MOD__ALT) {
1137                                             if (MOD__SHIFT) {
1138                                                 // FIXME: alt+shift+[] does not work, don't know why
1139                                                 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);
1140                                             } else {
1141                                                 sp_te_adjust_rotation_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);
1142                                             }
1143                                         } else {
1144                                             sp_te_adjust_rotation(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 90);
1145                                         }
1146                                         sp_document_maybe_done(sp_desktop_document(desktop), "textrot:cw", SP_VERB_CONTEXT_TEXT,
1147                                                                 _("Rotate clockwise"));
1148                                         sp_text_context_update_cursor(tc);
1149                                         sp_text_context_update_text_selection(tc);
1150                                         return TRUE;
1151                                     }
1152                                 }
1153                                 break;
1154                             case GDK_less:
1155                             case GDK_comma:
1156                                 if (tc->text) {
1157                                     if (MOD__ALT) {
1158                                         if (MOD__CTRL) {
1159                                             if (MOD__SHIFT)
1160                                                 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);
1161                                             else
1162                                                 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);
1163                                             sp_document_maybe_done(sp_desktop_document(desktop), "linespacing:dec", SP_VERB_CONTEXT_TEXT,
1164                                                                     _("Contract line spacing"));
1165
1166                                         } else {
1167                                             if (MOD__SHIFT)
1168                                                 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -10);
1169                                             else
1170                                                 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, -1);
1171                                             sp_document_maybe_done(sp_desktop_document(desktop), "letterspacing:dec", SP_VERB_CONTEXT_TEXT,
1172                                                                     _("Contract letter spacing"));
1173
1174                                         }
1175                                         sp_text_context_update_cursor(tc);
1176                                         sp_text_context_update_text_selection(tc);
1177                                         return TRUE;
1178                                     }
1179                                 }
1180                                 break;
1181                             case GDK_greater:
1182                             case GDK_period:
1183                                 if (tc->text) {
1184                                     if (MOD__ALT) {
1185                                         if (MOD__CTRL) {
1186                                             if (MOD__SHIFT)
1187                                                 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);
1188                                             else
1189                                                 sp_te_adjust_linespacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);
1190                                             sp_document_maybe_done(sp_desktop_document(desktop), "linespacing:inc", SP_VERB_CONTEXT_TEXT,
1191                                                                     _("Expand line spacing"));
1192
1193                                         } else {
1194                                             if (MOD__SHIFT)
1195                                                 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 10);
1196                                             else
1197                                                 sp_te_adjust_tspan_letterspacing_screen(tc->text, tc->text_sel_start, tc->text_sel_end, desktop, 1);
1198                                             sp_document_maybe_done(sp_desktop_document(desktop), "letterspacing:inc", SP_VERB_CONTEXT_TEXT,
1199                                                                     _("Expand letter spacing"));
1200
1201                                         }
1202                                         sp_text_context_update_cursor(tc);
1203                                         sp_text_context_update_text_selection(tc);
1204                                         return TRUE;
1205                                     }
1206                                 }
1207                                 break;
1208                             default:
1209                                 break;
1210                         }
1211
1212                         if (cursor_movement_operator) {
1213                             Inkscape::Text::Layout::iterator old_start = tc->text_sel_start;
1214                             Inkscape::Text::Layout::iterator old_end = tc->text_sel_end;
1215                             (tc->text_sel_end.*cursor_movement_operator)();
1216                             if (!MOD__SHIFT)
1217                                 tc->text_sel_start = tc->text_sel_end;
1218                             if (old_start != tc->text_sel_start || old_end != tc->text_sel_end) {
1219                                 sp_text_context_update_cursor(tc);
1220                                 sp_text_context_update_text_selection(tc);
1221                             }
1222                             return TRUE;
1223                         }
1224
1225                 } else return TRUE; // return the "I took care of it" value if it was consumed by the IM
1226             } else { // do nothing if there's no object to type in - the key will be sent to parent context,
1227                 // except up/down that are swallowed to prevent the zoom field from activation
1228                 if ((group0_keyval == GDK_Up    ||
1229                      group0_keyval == GDK_Down  ||
1230                      group0_keyval == GDK_KP_Up ||
1231                      group0_keyval == GDK_KP_Down )
1232                     && !MOD__CTRL_ONLY) {
1233                     return TRUE;
1234                 } else if (group0_keyval == GDK_Escape) { // cancel rubberband
1235                     if (tc->creating) {
1236                         tc->creating = 0;
1237                         if (tc->grabbed) {
1238                             sp_canvas_item_ungrab(tc->grabbed, GDK_CURRENT_TIME);
1239                             tc->grabbed = NULL;
1240                         }
1241                         Inkscape::Rubberband::get()->stop();
1242                     }
1243                 }
1244             }
1245             break;
1246         }
1247
1248         case GDK_KEY_RELEASE:
1249             if (!tc->unimode && tc->imc && gtk_im_context_filter_keypress(tc->imc, (GdkEventKey*) event)) {
1250                 return TRUE;
1251             }
1252             break;
1253         default:
1254             break;
1255     }
1256
1257     // if nobody consumed it so far
1258     if (((SPEventContextClass *) parent_class)->root_handler) { // and there's a handler in parent context,
1259         return ((SPEventContextClass *) parent_class)->root_handler(event_context, event); // send event to parent
1260     } else {
1261         return FALSE; // return "I did nothing" value so that global shortcuts can be activated
1262     }
1263 }
1264
1265 /**
1266  Attempts to paste system clipboard into the currently edited text, returns true on success
1267  */
1268 bool
1269 sp_text_paste_inline(SPEventContext *ec)
1270 {
1271     if (!SP_IS_TEXT_CONTEXT(ec))
1272         return false;
1273
1274     SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1275
1276     if ((tc->text) || (tc->nascent_object)) {
1277         // there is an active text object in this context, or a new object was just created
1278
1279         Glib::RefPtr<Gtk::Clipboard> refClipboard = Gtk::Clipboard::get();
1280         Glib::ustring const text = refClipboard->wait_for_text();
1281
1282         if (!text.empty()) {
1283
1284             if (!tc->text) { // create text if none (i.e. if nascent_object)
1285                 sp_text_context_setup_text(tc);
1286                 tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1287             }
1288
1289             // using indices is slow in ustrings. Whatever.
1290             Glib::ustring::size_type begin = 0;
1291             for ( ; ; ) {
1292                 Glib::ustring::size_type end = text.find('\n', begin);
1293                 if (end == Glib::ustring::npos) {
1294                     if (begin != text.length())
1295                         tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, text.substr(begin).c_str());
1296                     break;
1297                 }
1298                 tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, text.substr(begin, end - begin).c_str());
1299                 tc->text_sel_start = tc->text_sel_end = sp_te_insert_line(tc->text, tc->text_sel_start);
1300                 begin = end + 1;
1301             }
1302             sp_document_done(sp_desktop_document(ec->desktop), SP_VERB_CONTEXT_TEXT,
1303                              _("Paste text"));
1304
1305             return true;
1306         }
1307     } // FIXME: else create and select a new object under cursor!
1308
1309     return false;
1310 }
1311
1312 /**
1313  Gets the raw characters that comprise the currently selected text, converting line
1314  breaks into lf characters.
1315 */
1316 Glib::ustring
1317 sp_text_get_selected_text(SPEventContext const *ec)
1318 {
1319     if (!SP_IS_TEXT_CONTEXT(ec))
1320         return "";
1321     SPTextContext const *tc = SP_TEXT_CONTEXT(ec);
1322     if (tc->text == NULL)
1323         return "";
1324
1325     return sp_te_get_string_multiline(tc->text, tc->text_sel_start, tc->text_sel_end);
1326 }
1327
1328 /**
1329  Deletes the currently selected characters. Returns false if there is no
1330  text selection currently.
1331 */
1332 bool sp_text_delete_selection(SPEventContext *ec)
1333 {
1334     if (!SP_IS_TEXT_CONTEXT(ec))
1335         return false;
1336     SPTextContext *tc = SP_TEXT_CONTEXT(ec);
1337     if (tc->text == NULL)
1338         return false;
1339
1340     if (tc->text_sel_start == tc->text_sel_end)
1341         return false;
1342
1343     iterator_pair pair;
1344     bool success = sp_te_delete(tc->text, tc->text_sel_start, tc->text_sel_end, pair);
1345
1346
1347     if (success) {
1348         tc->text_sel_start = tc->text_sel_end = pair.first;
1349     } else { // nothing deleted
1350         tc->text_sel_start = pair.first;
1351         tc->text_sel_end = pair.second;
1352     }
1353
1354     sp_text_context_update_cursor(tc);
1355     sp_text_context_update_text_selection(tc);
1356
1357     return true;
1358 }
1359
1360 /**
1361  * \param selection Should not be NULL.
1362  */
1363 static void
1364 sp_text_context_selection_changed(Inkscape::Selection *selection, SPTextContext *tc)
1365 {
1366     g_assert(selection != NULL);
1367
1368     SPEventContext *ec = SP_EVENT_CONTEXT(tc);
1369
1370     if (ec->shape_knot_holder) { // destroy knotholder
1371         sp_knot_holder_destroy(ec->shape_knot_holder);
1372         ec->shape_knot_holder = NULL;
1373     }
1374
1375     if (ec->shape_repr) { // remove old listener
1376         sp_repr_remove_listener_by_data(ec->shape_repr, ec);
1377         Inkscape::GC::release(ec->shape_repr);
1378         ec->shape_repr = 0;
1379     }
1380
1381     SPItem *item = selection->singleItem();
1382     if (item && SP_IS_FLOWTEXT (item) && SP_FLOWTEXT(item)->has_internal_frame()) {
1383         ec->shape_knot_holder = sp_item_knot_holder(item, ec->desktop);
1384         Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(SP_FLOWTEXT(item)->get_frame(NULL));
1385         if (shape_repr) {
1386             ec->shape_repr = shape_repr;
1387             Inkscape::GC::anchor(shape_repr);
1388             sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
1389         }
1390     }
1391
1392     if (tc->text && (item != tc->text)) {
1393         sp_text_context_forget_text(tc);
1394     }
1395     tc->text = NULL;
1396
1397     if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) {
1398         tc->text = item;
1399         Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1400         if (layout)
1401             tc->text_sel_start = tc->text_sel_end = layout->end();
1402     } else {
1403         tc->text = NULL;
1404     }
1405
1406     // we update cursor without scrolling, because this position may not be final;
1407     // item_handler moves cusros to the point of click immediately
1408     sp_text_context_update_cursor(tc, false);
1409     sp_text_context_update_text_selection(tc);
1410 }
1411
1412 static void
1413 sp_text_context_selection_modified(Inkscape::Selection */*selection*/, guint /*flags*/, SPTextContext *tc)
1414 {
1415     sp_text_context_update_cursor(tc);
1416     sp_text_context_update_text_selection(tc);
1417 }
1418
1419 static bool
1420 sp_text_context_style_set(SPCSSAttr const *css, SPTextContext *tc)
1421 {
1422     if (tc->text == NULL)
1423         return false;
1424     if (tc->text_sel_start == tc->text_sel_end)
1425         return false;    // will get picked up by the parent and applied to the whole text object
1426
1427     sp_te_apply_style(tc->text, tc->text_sel_start, tc->text_sel_end, css);
1428     sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_CONTEXT_TEXT,
1429                      _("Set text style"));
1430     sp_text_context_update_cursor(tc);
1431     sp_text_context_update_text_selection(tc);
1432
1433     return true;
1434 }
1435
1436 static int
1437 sp_text_context_style_query(SPStyle *style, int property, SPTextContext *tc)
1438 {
1439     if (tc->text == NULL)
1440         return QUERY_STYLE_NOTHING;
1441     const Inkscape::Text::Layout *layout = te_get_layout(tc->text);
1442     if (layout == NULL)
1443         return QUERY_STYLE_NOTHING;
1444     sp_text_context_validate_cursor_iterators(tc);
1445
1446     GSList *styles_list = NULL;
1447
1448     Inkscape::Text::Layout::iterator begin_it, end_it;
1449     if (tc->text_sel_start < tc->text_sel_end) {
1450         begin_it = tc->text_sel_start;
1451         end_it = tc->text_sel_end;
1452     } else {
1453         begin_it = tc->text_sel_end;
1454         end_it = tc->text_sel_start;
1455     }
1456     if (begin_it == end_it)
1457         if (!begin_it.prevCharacter())
1458             end_it.nextCharacter();
1459     for (Inkscape::Text::Layout::iterator it = begin_it ; it < end_it ; it.nextStartOfSpan()) {
1460         SPObject const *pos_obj = 0;
1461         void *rawptr = 0;
1462         layout->getSourceOfCharacter(it, &rawptr);
1463         pos_obj = SP_OBJECT(rawptr);
1464         if (pos_obj == 0) continue;
1465         while (SP_IS_STRING(pos_obj) && SP_OBJECT_PARENT(pos_obj)) {
1466            pos_obj = SP_OBJECT_PARENT(pos_obj);   // SPStrings don't have style
1467         }
1468         styles_list = g_slist_prepend(styles_list, (gpointer)pos_obj);
1469     }
1470
1471     int result = sp_desktop_query_style_from_list (styles_list, style, property);
1472
1473     g_slist_free(styles_list);
1474     return result;
1475 }
1476
1477 static void
1478 sp_text_context_validate_cursor_iterators(SPTextContext *tc)
1479 {
1480     if (tc->text == NULL)
1481         return;
1482     Inkscape::Text::Layout const *layout = te_get_layout(tc->text);
1483     if (layout) {     // undo can change the text length without us knowing it
1484         layout->validateIterator(&tc->text_sel_start);
1485         layout->validateIterator(&tc->text_sel_end);
1486     }
1487 }
1488
1489 static void
1490 sp_text_context_update_cursor(SPTextContext *tc,  bool scroll_to_see)
1491 {
1492     GdkRectangle im_cursor = { 0, 0, 1, 1 };
1493
1494     // due to interruptible display, tc may already be destroyed during a display update before
1495     // the cursor update (can't do both atomically, alas)
1496     if (!tc->desktop) return;
1497
1498     if (tc->text) {
1499         NR::Point p0, p1;
1500         sp_te_get_cursor_coords(tc->text, tc->text_sel_end, p0, p1);
1501         NR::Point const d0 = p0 * sp_item_i2d_affine(SP_ITEM(tc->text));
1502         NR::Point const d1 = p1 * sp_item_i2d_affine(SP_ITEM(tc->text));
1503
1504         // scroll to show cursor
1505         if (scroll_to_see) {
1506             NR::Point const dm = (d0 + d1) / 2;
1507             // unlike mouse moves, here we must scroll all the way at first shot, so we override the autoscrollspeed
1508             SP_EVENT_CONTEXT(tc)->desktop->scroll_to_point(&dm, 1.0);
1509         }
1510
1511         sp_canvas_item_show(tc->cursor);
1512         sp_ctrlline_set_coords(SP_CTRLLINE(tc->cursor), d0, d1);
1513
1514         /* fixme: ... need another transformation to get canvas widget coordinate space? */
1515         im_cursor.x = (int) floor(d0[NR::X]);
1516         im_cursor.y = (int) floor(d0[NR::Y]);
1517         im_cursor.width = (int) floor(d1[NR::X]) - im_cursor.x;
1518         im_cursor.height = (int) floor(d1[NR::Y]) - im_cursor.y;
1519
1520         tc->show = TRUE;
1521         tc->phase = 1;
1522
1523         if (SP_IS_FLOWTEXT(tc->text)) {
1524             SPItem *frame = SP_FLOWTEXT(tc->text)->get_frame (NULL); // first frame only
1525             if (frame) {
1526                 sp_canvas_item_show(tc->frame);
1527                 NR::Maybe<NR::Rect> frame_bbox = sp_item_bbox_desktop(frame);
1528                 if (frame_bbox) {
1529                     SP_CTRLRECT(tc->frame)->setRectangle(*frame_bbox);
1530                 }
1531             }
1532             SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type flowed text; <b>Enter</b> to start new paragraph."));
1533         } else {
1534             SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("Type text; <b>Enter</b> to start new line."));
1535         }
1536
1537     } else {
1538         sp_canvas_item_hide(tc->cursor);
1539         sp_canvas_item_hide(tc->frame);
1540         tc->show = FALSE;
1541         if (!tc->nascent_object) {
1542             SP_EVENT_CONTEXT(tc)->_message_context->set(Inkscape::NORMAL_MESSAGE, _("<b>Click</b> to select or create text, <b>drag</b> to create flowed text; then type.")); // FIXME: this is a copy of string from tools-switch, do not desync
1543         }
1544     }
1545
1546     if (tc->imc) {
1547         gtk_im_context_set_cursor_location(tc->imc, &im_cursor);
1548     }
1549     SP_EVENT_CONTEXT(tc)->desktop->emitToolSubselectionChanged((gpointer)tc);
1550 }
1551
1552 static void sp_text_context_update_text_selection(SPTextContext *tc)
1553 {
1554     // due to interruptible display, tc may already be destroyed during a display update before
1555     // the selection update (can't do both atomically, alas)
1556     if (!tc->desktop) return;
1557
1558     for (std::vector<SPCanvasItem*>::iterator it = tc->text_selection_quads.begin() ; it != tc->text_selection_quads.end() ; it++) {
1559         sp_canvas_item_hide(*it);
1560         gtk_object_destroy(*it);
1561     }
1562     tc->text_selection_quads.clear();
1563
1564     std::vector<NR::Point> quads;
1565     if (tc->text != NULL)
1566         quads = sp_te_create_selection_quads(tc->text, tc->text_sel_start, tc->text_sel_end, sp_item_i2d_affine(tc->text));
1567     for (unsigned i = 0 ; i < quads.size() ; i += 4) {
1568         SPCanvasItem *quad_canvasitem;
1569         quad_canvasitem = sp_canvas_item_new(sp_desktop_controls(tc->desktop), SP_TYPE_CTRLQUADR, NULL);
1570         sp_ctrlquadr_set_rgba32(SP_CTRLQUADR(quad_canvasitem), 0x000000ff);
1571         sp_ctrlquadr_set_coords(SP_CTRLQUADR(quad_canvasitem), quads[i], quads[i+1], quads[i+2], quads[i+3]);
1572         sp_canvas_item_show(quad_canvasitem);
1573         tc->text_selection_quads.push_back(quad_canvasitem);
1574     }
1575 }
1576
1577 static gint
1578 sp_text_context_timeout(SPTextContext *tc)
1579 {
1580     if (tc->show) {
1581         if (tc->phase) {
1582             tc->phase = 0;
1583             sp_canvas_item_hide(tc->cursor);
1584         } else {
1585             tc->phase = 1;
1586             sp_canvas_item_show(tc->cursor);
1587         }
1588     }
1589
1590     return TRUE;
1591 }
1592
1593 static void
1594 sp_text_context_forget_text(SPTextContext *tc)
1595 {
1596     if (! tc->text) return;
1597     SPItem *ti = tc->text;
1598     /* We have to set it to zero,
1599      * or selection changed signal messes everything up */
1600     tc->text = NULL;
1601
1602 /* FIXME: this automatic deletion when nothing is inputted crashes the XML edittor and also crashes when duplicating an empty flowtext.
1603     So don't create an empty flowtext in the first place? Create it when first character is typed.
1604     */
1605 /*
1606     if ((SP_IS_TEXT(ti) || SP_IS_FLOWTEXT(ti)) && sp_te_input_is_empty(ti)) {
1607         Inkscape::XML::Node *text_repr=SP_OBJECT_REPR(ti);
1608         // the repr may already have been unparented
1609         // if we were called e.g. as the result of
1610         // an undo or the element being removed from
1611         // the XML editor
1612         if ( text_repr && sp_repr_parent(text_repr) ) {
1613             sp_repr_unparent(text_repr);
1614             sp_document_done(sp_desktop_document(tc->desktop), SP_VERB_CONTEXT_TEXT,
1615                      _("Remove empty text"));
1616         }
1617     }
1618 */
1619 }
1620
1621 gint
1622 sptc_focus_in(GtkWidget */*widget*/, GdkEventFocus */*event*/, SPTextContext *tc)
1623 {
1624     gtk_im_context_focus_in(tc->imc);
1625     return FALSE;
1626 }
1627
1628 gint
1629 sptc_focus_out(GtkWidget */*widget*/, GdkEventFocus */*event*/, SPTextContext *tc)
1630 {
1631     gtk_im_context_focus_out(tc->imc);
1632     return FALSE;
1633 }
1634
1635 static void
1636 sptc_commit(GtkIMContext */*imc*/, gchar *string, SPTextContext *tc)
1637 {
1638     if (!tc->text) {
1639         sp_text_context_setup_text(tc);
1640         tc->nascent_object = 0; // we don't need it anymore, having created a real <text>
1641     }
1642
1643     tc->text_sel_start = tc->text_sel_end = sp_te_replace(tc->text, tc->text_sel_start, tc->text_sel_end, string);
1644     sp_text_context_update_cursor(tc);
1645     sp_text_context_update_text_selection(tc);
1646
1647     sp_document_done(SP_OBJECT_DOCUMENT(tc->text), SP_VERB_CONTEXT_TEXT,
1648                      _("Type text"));
1649 }
1650
1651
1652 /*
1653   Local Variables:
1654   mode:c++
1655   c-file-style:"stroustrup"
1656   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1657   indent-tabs-mode:nil
1658   fill-column:99
1659   End:
1660 */
1661 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :