src/dialogs/stroke-style.cpp

   1 #define __SP_STROKE_STYLE_C__
   2
   3 /**
   4  * \brief  Stroke style dialog
   5  *
   6  * Authors:
   7  *   Lauris Kaplinski <lauris@kaplinski.com>
   8  *   Bryce Harrington <brycehar@bryceharrington.com>
   9  *   bulia byak <buliabyak@users.sf.net>
  10  *
  11  * Copyright (C) 2001-2005 authors
  12  * Copyright (C) 2001 Ximian, Inc.
  13  * Copyright (C) 2004 John Cliff
  14  *
  15  * Released under GNU GPL, read the file 'COPYING' for more information
  16  */
  17
  18 #define noSP_SS_VERBOSE
  19
  20 #ifdef HAVE_CONFIG_H
  21 # include "config.h"
  22 #endif
  23
  24
  25
  26 #include <glib/gmem.h>
  27 #include <gtk/gtk.h>
  28
  29 #include <glibmm/i18n.h>
  30 #include "helper/unit-menu.h"
  31 #include "helper/units.h"
  32 #include "svg/css-ostringstream.h"
  33 #include "widgets/sp-widget.h"
  34 #include "widgets/spw-utilities.h"
  35 #include "sp-linear-gradient.h"
  36 #include "sp-radial-gradient.h"
  37 #include "sp-marker.h"
  38 #include <sp-pattern.h>
  39 #include <widgets/paint-selector.h>
  40 #include <widgets/dash-selector.h>
  41 #include "style.h"
  42 #include "gradient-chemistry.h"
  43 #include "sp-namedview.h"
  44 #include "desktop-handles.h"
  45 #include "desktop-style.h"
  46 #include "selection.h"
  47 #include "inkscape.h"
  48 #include "inkscape-stock.h"
  49 #include "dialogs/dialog-events.h"
  50 #include "sp-text.h"
  51 #include "sp-rect.h"
  52 #include "document-private.h"
  53 #include "display/nr-arena.h"
  54 #include "display/nr-arena-item.h"
  55 #include "path-prefix.h"
  56 #include "widgets/icon.h"
  57 #include "helper/stock-items.h"
  58 #include "io/sys.h"
  59
  60 #include "dialogs/stroke-style.h"
  61
  62 /* Paint */
  63
  64 static void sp_stroke_style_paint_construct(SPWidget *spw, SPPaintSelector *psel);
  65 static void sp_stroke_style_paint_selection_modified (SPWidget *spw, Inkscape::Selection *selection, guint flags, SPPaintSelector *psel);
  66 static void sp_stroke_style_paint_selection_changed (SPWidget *spw, Inkscape::Selection *selection, SPPaintSelector *psel);
  67 static void sp_stroke_style_paint_update(SPWidget *spw);
  68
  69 static void sp_stroke_style_paint_mode_changed(SPPaintSelector *psel, SPPaintSelectorMode mode, SPWidget *spw);
  70 static void sp_stroke_style_paint_dragged(SPPaintSelector *psel, SPWidget *spw);
  71 static void sp_stroke_style_paint_changed(SPPaintSelector *psel, SPWidget *spw);
  72
  73 static void sp_stroke_style_widget_change_subselection ( Inkscape::Application *inkscape, SPDesktop *desktop, SPWidget *spw );
  74
  75 GtkWidget *
  76 sp_stroke_style_paint_widget_new(void)
  77 {
  78     GtkWidget *spw, *psel;
  79
  80     spw = sp_widget_new_global(INKSCAPE);
  81
  82     psel = sp_paint_selector_new(false); // without fillrule selector
  83     gtk_widget_show(psel);
  84     gtk_container_add(GTK_CONTAINER(spw), psel);
  85     gtk_object_set_data(GTK_OBJECT(spw), "paint-selector", psel);
  86
  87     gtk_signal_connect(GTK_OBJECT(spw), "construct",
  88                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_construct),
  89                        psel);
  90     gtk_signal_connect(GTK_OBJECT(spw), "modify_selection",
  91                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_selection_modified),
  92                        psel);
  93     gtk_signal_connect(GTK_OBJECT(spw), "change_selection",
  94                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_selection_changed),
  95                        psel);
  96
  97     g_signal_connect (INKSCAPE, "change_subselection", G_CALLBACK (sp_stroke_style_widget_change_subselection), spw);
  98
  99     gtk_signal_connect(GTK_OBJECT(psel), "mode_changed",
 100                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_mode_changed),
 101                        spw);
 102     gtk_signal_connect(GTK_OBJECT(psel), "dragged",
 103                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_dragged),
 104                        spw);
 105     gtk_signal_connect(GTK_OBJECT(psel), "changed",
 106                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_changed),
 107                        spw);
 108
 109     sp_stroke_style_paint_update (SP_WIDGET(spw));
 110     return spw;
 111 }
 112
 113 static void
 114 sp_stroke_style_paint_construct(SPWidget *spw, SPPaintSelector *psel)
 115 {
 116 #ifdef SP_SS_VERBOSE
 117     g_print( "Stroke style widget constructed: inkscape %p repr %p\n",
 118              spw->inkscape, spw->repr );
 119 #endif
 120     if (spw->inkscape) {
 121         sp_stroke_style_paint_update (spw);
 122     }
 123 }
 124
 125 static void
 126 sp_stroke_style_paint_selection_modified ( SPWidget *spw,
 127                                         Inkscape::Selection *selection,
 128                                         guint flags,
 129                                         SPPaintSelector *psel)
 130 {
 131     if (flags & ( SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_PARENT_MODIFIED_FLAG |
 132                   SP_OBJECT_STYLE_MODIFIED_FLAG) ) {
 133         sp_stroke_style_paint_update(spw);
 134     }
 135 }
 136
 137
 138 static void
 139 sp_stroke_style_paint_selection_changed ( SPWidget *spw,
 140                                         Inkscape::Selection *selection,
 141                                         SPPaintSelector *psel )
 142 {
 143     sp_stroke_style_paint_update (spw);
 144 }
 145
 146 static void
 147 sp_stroke_style_widget_change_subselection ( Inkscape::Application *inkscape,
 148                                         SPDesktop *desktop,
 149                                         SPWidget *spw )
 150 {
 151     sp_stroke_style_paint_update (spw);
 152 }
 153
 154 static void
 155 sp_stroke_style_paint_update (SPWidget *spw)
 156 {
 157     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 158         return;
 159     }
 160
 161     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
 162
 163     SPPaintSelector *psel = SP_PAINT_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "paint-selector"));
 164
 165     // create temporary style
 166     SPStyle *query = sp_style_new ();
 167     // query into it
 168     int result = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKE);
 169
 170     switch (result) {
 171         case QUERY_STYLE_NOTHING:
 172         {
 173             /* No paint at all */
 174             sp_paint_selector_set_mode (psel, SP_PAINT_SELECTOR_MODE_EMPTY);
 175             break;
 176         }
 177
 178         case QUERY_STYLE_SINGLE:
 179         case QUERY_STYLE_MULTIPLE_AVERAGED: // TODO: treat this slightly differently, e.g. display "averaged" somewhere in paint selector
 180         case QUERY_STYLE_MULTIPLE_SAME:
 181         {
 182             SPPaintSelectorMode pselmode = sp_style_determine_paint_selector_mode (query, false);
 183             sp_paint_selector_set_mode (psel, pselmode);
 184
 185             if (query->stroke.set && query->stroke.type == SP_PAINT_TYPE_COLOR) {
 186                 gfloat d[3];
 187                 sp_color_get_rgb_floatv (&query->stroke.value.color, d);
 188                 SPColor color;
 189                 sp_color_set_rgb_float (&color, d[0], d[1], d[2]);
 190                 sp_paint_selector_set_color_alpha (psel, &color, SP_SCALE24_TO_FLOAT (query->stroke_opacity.value));
 191
 192             } else if (query->stroke.set && query->stroke.type == SP_PAINT_TYPE_PAINTSERVER) {
 193
 194                 SPPaintServer *server = SP_STYLE_STROKE_SERVER (query);
 195
 196                 if (SP_IS_LINEARGRADIENT (server)) {
 197                     SPGradient *vector = sp_gradient_get_vector (SP_GRADIENT (server), FALSE);
 198                     sp_paint_selector_set_gradient_linear (psel, vector);
 199
 200                     SPLinearGradient *lg = SP_LINEARGRADIENT (server);
 201                     sp_paint_selector_set_gradient_properties (psel,
 202                                                        SP_GRADIENT_UNITS (lg),
 203                                                        SP_GRADIENT_SPREAD (lg));
 204                 } else if (SP_IS_RADIALGRADIENT (server)) {
 205                     SPGradient *vector = sp_gradient_get_vector (SP_GRADIENT (server), FALSE);
 206                     sp_paint_selector_set_gradient_radial (psel, vector);
 207
 208                     SPRadialGradient *rg = SP_RADIALGRADIENT (server);
 209                     sp_paint_selector_set_gradient_properties (psel,
 210                                                        SP_GRADIENT_UNITS (rg),
 211                                                        SP_GRADIENT_SPREAD (rg));
 212                 } else if (SP_IS_PATTERN (server)) {
 213                     SPPattern *pat = pattern_getroot (SP_PATTERN (server));
 214                     sp_update_pattern_list (psel, pat);
 215                 }
 216             }
 217             break;
 218         }
 219
 220         case QUERY_STYLE_MULTIPLE_DIFFERENT:
 221         {
 222             sp_paint_selector_set_mode (psel, SP_PAINT_SELECTOR_MODE_MULTIPLE);
 223             break;
 224         }
 225     }
 226
 227     g_free (query);
 228
 229     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
 230 }
 231
 232 static void
 233 sp_stroke_style_paint_mode_changed( SPPaintSelector *psel,
 234                                     SPPaintSelectorMode mode,
 235                                     SPWidget *spw )
 236 {
 237     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 238         return;
 239     }
 240
 241     /* TODO: Does this work?
 242      * Not really, here we have to get old color back from object
 243      * Instead of relying on paint widget having meaningful colors set
 244      */
 245     sp_stroke_style_paint_changed(psel, spw);
 246 }
 247
 248 static gchar *undo_label_1 = "stroke:flatcolor:1";
 249 static gchar *undo_label_2 = "stroke:flatcolor:2";
 250 static gchar *undo_label = undo_label_1;
 251
 252 static void
 253 sp_stroke_style_paint_dragged(SPPaintSelector *psel, SPWidget *spw)
 254 {
 255     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 256         return;
 257     }
 258
 259     switch (psel->mode) {
 260         case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
 261         case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
 262         {
 263             sp_paint_selector_set_flat_color (psel, SP_ACTIVE_DESKTOP, "stroke", "stroke-opacity");
 264             sp_document_maybe_done (sp_desktop_document(SP_ACTIVE_DESKTOP), undo_label);
 265             break;
 266         }
 267
 268         default:
 269             g_warning( "file %s: line %d: Paint %d should not emit 'dragged'",
 270                        __FILE__, __LINE__, psel->mode);
 271             break;
 272     }
 273 }
 274
 275 static void
 276 sp_stroke_style_paint_changed(SPPaintSelector *psel, SPWidget *spw)
 277 {
 278     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 279         return;
 280     }
 281     g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (TRUE));
 282
 283     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 284     SPDocument *document = sp_desktop_document (desktop);
 285     Inkscape::Selection *selection = sp_desktop_selection (desktop);
 286
 287     GSList const *items = selection->itemList();
 288
 289     switch (psel->mode) {
 290         case SP_PAINT_SELECTOR_MODE_EMPTY:
 291             // This should not happen.
 292             g_warning ( "file %s: line %d: Paint %d should not emit 'changed'",
 293                         __FILE__, __LINE__, psel->mode);
 294             break;
 295         case SP_PAINT_SELECTOR_MODE_MULTIPLE:
 296             // This happens when you switch multiple objects with different gradients to flat color;
 297             // nothing to do here.
 298             break;
 299
 300         case SP_PAINT_SELECTOR_MODE_NONE:
 301         {
 302             SPCSSAttr *css = sp_repr_css_attr_new();
 303             sp_repr_css_set_property(css, "stroke", "none");
 304
 305             sp_desktop_set_style (desktop, css);
 306
 307             sp_repr_css_attr_unref(css);
 308
 309             sp_document_done(document);
 310             break;
 311         }
 312
 313         case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
 314         case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
 315         {
 316             sp_paint_selector_set_flat_color (psel, desktop, "stroke", "stroke-opacity");
 317             sp_document_maybe_done (sp_desktop_document(desktop), undo_label);
 318
 319             // on release, toggle undo_label so that the next drag will not be lumped with this one
 320             if (undo_label == undo_label_1)
 321                 undo_label = undo_label_2;
 322             else
 323                 undo_label = undo_label_1;
 324
 325             break;
 326         }
 327
 328         case SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR:
 329         case SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL:
 330             if (items) {
 331                 SPGradientType const gradient_type = ( psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR
 332                                                        ? SP_GRADIENT_TYPE_LINEAR
 333                                                        : SP_GRADIENT_TYPE_RADIAL );
 334                 SPGradient *vector = sp_paint_selector_get_gradient_vector(psel);
 335                 if (!vector) {
 336                     /* No vector in paint selector should mean that we just changed mode */
 337
 338                     SPStyle *query = sp_style_new ();
 339                     int result = objects_query_fillstroke ((GSList *) items, query, false);
 340                     guint32 common_rgb = 0;
 341                     if (result == QUERY_STYLE_MULTIPLE_SAME) {
 342                         if (query->fill.type != SP_PAINT_TYPE_COLOR) {
 343                             common_rgb = sp_desktop_get_color(desktop, false);
 344                         } else {
 345                             common_rgb = sp_color_get_rgba32_ualpha(&query->stroke.value.color, 0xff);
 346                         }
 347                         vector = sp_document_default_gradient_vector(document, common_rgb);
 348                     }
 349                     g_free (query);
 350
 351                     for (GSList const *i = items; i != NULL; i = i->next) {
 352                         if (!vector) {
 353                             sp_item_set_gradient(SP_ITEM(i->data),
 354                                                  sp_gradient_vector_for_object(document, desktop, SP_OBJECT(i->data), false),
 355                                                  gradient_type, false);
 356                         } else {
 357                             sp_item_set_gradient(SP_ITEM(i->data), vector, gradient_type, false);
 358                         }
 359                     }
 360                 } else {
 361                     vector = sp_gradient_ensure_vector_normalized(vector);
 362                     for (GSList const *i = items; i != NULL; i = i->next) {
 363                         SPGradient *gr = sp_item_set_gradient(SP_ITEM(i->data), vector, gradient_type, false);
 364                         sp_gradient_selector_attrs_to_gradient(gr, psel);
 365                     }
 366                 }
 367
 368                 sp_document_done(document);
 369             }
 370             break;
 371
 372         case SP_PAINT_SELECTOR_MODE_PATTERN:
 373
 374             if (items) {
 375
 376                 SPPattern *pattern = sp_paint_selector_get_pattern (psel);
 377                 if (!pattern) {
 378
 379                     /* No Pattern in paint selector should mean that we just
 380                      * changed mode - dont do jack.
 381                      */
 382
 383                 } else {
 384                     Inkscape::XML::Node *patrepr = SP_OBJECT_REPR(pattern);
 385                     SPCSSAttr *css = sp_repr_css_attr_new ();
 386                     gchar *urltext = g_strdup_printf ("url(#%s)", patrepr->attribute("id"));
 387                     sp_repr_css_set_property (css, "stroke", urltext);
 388
 389                     for (GSList const *i = items; i != NULL; i = i->next) {
 390                          Inkscape::XML::Node *selrepr = SP_OBJECT_REPR (i->data);
 391                          SPObject *selobj = SP_OBJECT (i->data);
 392                          if (!selrepr)
 393                              continue;
 394
 395                          SPStyle *style = SP_OBJECT_STYLE (selobj);
 396                          if (style && style->stroke.type == SP_PAINT_TYPE_PAINTSERVER) {
 397                              SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER (selobj);
 398                              if (SP_IS_PATTERN (server) && pattern_getroot (SP_PATTERN(server)) == pattern)
 399                                  // only if this object's pattern is not rooted in our selected pattern, apply
 400                                  continue;
 401                          }
 402
 403                          sp_repr_css_change_recursive (selrepr, css, "style");
 404                      }
 405
 406                     sp_repr_css_attr_unref (css);
 407                     g_free (urltext);
 408
 409                 } // end if
 410
 411                 sp_document_done (document);
 412             } // end if
 413
 414             break;
 415
 416         case SP_PAINT_SELECTOR_MODE_UNSET:
 417             if (items) {
 418                     SPCSSAttr *css = sp_repr_css_attr_new ();
 419                     sp_repr_css_unset_property (css, "stroke");
 420
 421                     sp_desktop_set_style (desktop, css);
 422                     sp_repr_css_attr_unref (css);
 423
 424                     sp_document_done (document);
 425             }
 426             break;
 427
 428         default:
 429             g_warning( "file %s: line %d: Paint selector should not be in "
 430                        "mode %d",
 431                        __FILE__, __LINE__,
 432                        psel->mode );
 433             break;
 434     }
 435
 436     g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (FALSE));
 437 }
 438
 439
 440
 441
 442
 443 /* Line */
 444
 445 static void sp_stroke_style_line_construct(SPWidget *spw, gpointer data);
 446 static void sp_stroke_style_line_selection_modified (SPWidget *spw,
 447                                                   Inkscape::Selection *selection,
 448                                                   guint flags,
 449                                                   gpointer data);
 450
 451 static void sp_stroke_style_line_selection_changed (SPWidget *spw,
 452                                                    Inkscape::Selection *selection,
 453                                                    gpointer data );
 454
 455 static void sp_stroke_style_line_update(SPWidget *spw, Inkscape::Selection *sel);
 456
 457 static void sp_stroke_style_set_join_buttons(SPWidget *spw,
 458                                              GtkWidget *active);
 459
 460 static void sp_stroke_style_set_cap_buttons(SPWidget *spw,
 461                                             GtkWidget *active);
 462
 463 static void sp_stroke_style_width_changed(GtkAdjustment *adj, SPWidget *spw);
 464 static void sp_stroke_style_miterlimit_changed(GtkAdjustment *adj, SPWidget *spw);
 465 static void sp_stroke_style_any_toggled(GtkToggleButton *tb, SPWidget *spw);
 466 static void sp_stroke_style_line_dash_changed(SPDashSelector *dsel,
 467                                               SPWidget *spw);
 468
 469 static void sp_stroke_style_update_marker_menus(SPWidget *spw, GSList const *objects);
 470
 471 static SPObject *ink_extract_marker_name(gchar const *n);
 472
 473
 474 /**
 475  * Helper function for creating radio buttons.  This should probably be re-thought out
 476  * when reimplementing this with Gtkmm.
 477  */
 478 static GtkWidget *
 479 sp_stroke_radio_button(GtkWidget *tb, char const *icon,
 480                        GtkWidget *hb, GtkWidget *spw,
 481                        gchar const *key, gchar const *data)
 482 {
 483     g_assert(icon != NULL);
 484     g_assert(hb  != NULL);
 485     g_assert(spw != NULL);
 486
 487     if (tb == NULL) {
 488         tb = gtk_radio_button_new(NULL);
 489     } else {
 490         tb = gtk_radio_button_new(gtk_radio_button_group(GTK_RADIO_BUTTON(tb)) );
 491     }
 492
 493     gtk_widget_show(tb);
 494     gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(tb), FALSE);
 495     gtk_box_pack_start(GTK_BOX(hb), tb, FALSE, FALSE, 0);
 496     gtk_object_set_data(GTK_OBJECT(spw), icon, tb);
 497     gtk_object_set_data(GTK_OBJECT(tb), key, (gpointer*)data);
 498     gtk_signal_connect(GTK_OBJECT(tb), "toggled",
 499                        GTK_SIGNAL_FUNC(sp_stroke_style_any_toggled),
 500                        spw);
 501     GtkWidget *px = sp_icon_new(Inkscape::ICON_SIZE_LARGE_TOOLBAR, icon);
 502     g_assert(px != NULL);
 503     gtk_widget_show(px);
 504     gtk_container_add(GTK_CONTAINER(tb), px);
 505
 506     return tb;
 507
 508 }
 509
 510 static GtkWidget *
 511 sp_marker_prev_new(unsigned size, gchar const *mname,
 512                    SPDocument *source, SPDocument *sandbox,
 513                    gchar *menu_id, NRArena const *arena, unsigned visionkey, NRArenaItem *root)
 514 {
 515     // the object of the marker
 516     SPObject const *marker = source->getObjectById(mname);
 517     if (marker == NULL)
 518         return NULL;
 519
 520     // the repr of the marker; make a copy with id="sample"
 521     Inkscape::XML::Node *mrepr = SP_OBJECT_REPR (marker)->duplicate();
 522     mrepr->setAttribute("id", "sample");
 523
 524     // replace the old sample in the sandbox by the new one
 525     Inkscape::XML::Node *defsrepr = SP_OBJECT_REPR (sandbox->getObjectById("defs"));
 526     SPObject *oldmarker = sandbox->getObjectById("sample");
 527     if (oldmarker)
 528         oldmarker->deleteObject(false);
 529     defsrepr->appendChild(mrepr);
 530     Inkscape::GC::release(mrepr);
 531
 532 // Uncomment this to get the sandbox documents saved (useful for debugging)
 533     //FILE *fp = fopen (g_strconcat(mname, ".svg", NULL), "w");
 534     //sp_repr_save_stream (sp_document_repr_doc (sandbox), fp);
 535     //fclose (fp);
 536
 537     // object to render; note that the id is the same as that of the menu we're building
 538     SPObject *object = sandbox->getObjectById(menu_id);
 539     sp_document_root (sandbox)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
 540     sp_document_ensure_up_to_date(sandbox);
 541
 542     if (object == NULL || !SP_IS_ITEM(object))
 543         return NULL; // sandbox broken?
 544
 545     // Find object's bbox in document
 546     NR::Matrix const i2doc(sp_item_i2doc_affine(SP_ITEM(object)));
 547
 548     NR::Rect const dbox = SP_ITEM(object)->invokeBbox(i2doc);
 549
 550     if (dbox.isEmpty()) {
 551         return NULL;
 552     }
 553
 554     /* Update to renderable state */
 555     NRMatrix t;
 556     double sf = 0.8;
 557     nr_matrix_set_scale(&t, sf, sf);
 558     nr_arena_item_set_transform(root, &t);
 559     NRGC gc(NULL);
 560     nr_matrix_set_identity(&gc.transform);
 561     nr_arena_item_invoke_update( root, NULL, &gc,
 562                                  NR_ARENA_ITEM_STATE_ALL,
 563                                  NR_ARENA_ITEM_STATE_NONE );
 564
 565     /* Item integer bbox in points */
 566     NRRectL ibox;
 567     ibox.x0 = (int) floor(sf * dbox.min()[NR::X] + 0.5);
 568     ibox.y0 = (int) floor(sf * dbox.min()[NR::Y] + 0.5);
 569     ibox.x1 = (int) floor(sf * dbox.max()[NR::X] + 0.5);
 570     ibox.y1 = (int) floor(sf * dbox.max()[NR::Y] + 0.5);
 571
 572     /* Find visible area */
 573     int width = ibox.x1 - ibox.x0;
 574     int height = ibox.y1 - ibox.y0;
 575     int dx = size;
 576     int dy = size;
 577     dx=(dx - width)/2; // watch out for size, since 'unsigned'-'signed' can cause problems if the result is negative
 578     dy=(dy - height)/2;
 579
 580     NRRectL area;
 581     area.x0 = ibox.x0 - dx;
 582     area.y0 = ibox.y0 - dy;
 583     area.x1 = area.x0 + size;
 584     area.y1 = area.y0 + size;
 585
 586     /* Actual renderable area */
 587     NRRectL ua;
 588     ua.x0 = MAX(ibox.x0, area.x0);
 589     ua.y0 = MAX(ibox.y0, area.y0);
 590     ua.x1 = MIN(ibox.x1, area.x1);
 591     ua.y1 = MIN(ibox.y1, area.y1);
 592
 593     /* Set up pixblock */
 594     guchar *px = g_new(guchar, 4 * size * size);
 595     memset(px, 0x00, 4 * size * size);
 596
 597     /* Render */
 598     NRPixBlock B;
 599     nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
 600                               ua.x0, ua.y0, ua.x1, ua.y1,
 601                               px + 4 * size * (ua.y0 - area.y0) +
 602                               4 * (ua.x0 - area.x0),
 603                               4 * size, FALSE, FALSE );
 604     nr_arena_item_invoke_render( root, &ua, &B,
 605                                  NR_ARENA_ITEM_RENDER_NO_CACHE );
 606     nr_pixblock_release(&B);
 607
 608     // Create widget
 609     GtkWidget *pb = gtk_image_new_from_pixbuf(gdk_pixbuf_new_from_data(px,
 610                               GDK_COLORSPACE_RGB,
 611                               TRUE,
 612                               8, size, size, size * 4,
 613                               (GdkPixbufDestroyNotify)g_free,
 614                               NULL));
 615     return pb;
 616 }
 617
 618
 619 #define MARKER_ITEM_MARGIN 0
 620
 621
 622 /**
 623  * sp_marker_list_from_doc()
 624  *
 625  * \brief Pick up all markers from source, except those that are in
 626  * current_doc (if non-NULL), and add items to the m menu
 627  *
 628  */
 629 static void
 630 sp_marker_list_from_doc (GtkWidget *m, SPDocument *current_doc, SPDocument *source, SPDocument *markers_doc, SPDocument *sandbox, gchar *menu_id)
 631 {
 632
 633     // search through defs
 634     GSList *ml = NULL;
 635     SPDefs *defs= (SPDefs *) SP_DOCUMENT_DEFS (source);
 636     for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(defs)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT (ochild) ) {
 637         if (SP_IS_MARKER(ochild)) {
 638             ml = g_slist_prepend (ml, ochild);
 639         }
 640     }
 641
 642     // Do this here, outside of loop, to speed up preview generation:
 643     /* Create new arena */
 644     NRArena const *arena = NRArena::create();
 645     /* Create ArenaItem and set transform */
 646     unsigned const visionkey = sp_item_display_key_new(1);
 647     NRArenaItem *root =  sp_item_invoke_show( SP_ITEM(SP_DOCUMENT_ROOT (sandbox)), (NRArena *) arena, visionkey, SP_ITEM_SHOW_DISPLAY );
 648
 649     for (; ml != NULL; ml = ml->next) {
 650
 651         if (!SP_IS_MARKER(ml->data))
 652             continue;
 653
 654         Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) ml->data);
 655
 656         bool stock_dupe = false;
 657
 658         if (markers_doc && repr->attribute("inkscape:stockid")) {
 659             // find out if markers_doc has a marker with the same stockid, and if so, skip this
 660             for (SPObject *child = sp_object_first_child(SP_OBJECT(SP_DOCUMENT_DEFS(markers_doc))) ;
 661                  child != NULL;
 662                  child = SP_OBJECT_NEXT(child) )
 663             {
 664                 if (SP_IS_MARKER(child) &&
 665                     SP_OBJECT_REPR(child)->attribute("inkscape:stockid") &&
 666                     !strcmp(repr->attribute("inkscape:stockid"), SP_OBJECT_REPR(child)->attribute("inkscape:stockid"))) {
 667                     stock_dupe = true;
 668                 }
 669             }
 670         }
 671
 672         if (stock_dupe) // stock item, dont add to list from current doc
 673             continue;
 674
 675         GtkWidget *i = gtk_menu_item_new();
 676         gtk_widget_show(i);
 677
 678         if (repr->attribute("inkscape:stockid"))
 679             g_object_set_data (G_OBJECT(i), "stockid", (void *) "true");
 680         else
 681             g_object_set_data (G_OBJECT(i), "stockid", (void *) "false");
 682
 683         gchar const *markid = repr->attribute("id");
 684         g_object_set_data (G_OBJECT(i), "marker", (void *) markid);
 685
 686         GtkWidget *hb = gtk_hbox_new(FALSE, MARKER_ITEM_MARGIN);
 687         gtk_widget_show(hb);
 688
 689         // generate preview
 690         GtkWidget *prv = sp_marker_prev_new (22, markid, source, sandbox, menu_id, arena, visionkey, root);
 691         gtk_widget_show(prv);
 692         gtk_box_pack_start(GTK_BOX(hb), prv, FALSE, FALSE, 6);
 693
 694         // create label
 695         GtkWidget *l = gtk_label_new(repr->attribute("id"));
 696         gtk_widget_show(l);
 697         gtk_misc_set_alignment(GTK_MISC(l), 0.0, 0.5);
 698
 699         gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
 700
 701         gtk_widget_show(hb);
 702         gtk_container_add(GTK_CONTAINER(i), hb);
 703
 704         gtk_menu_append(GTK_MENU(m), i);
 705     }
 706
 707     g_slist_free (ml);
 708 }
 709
 710
 711 SPDocument *
 712 ink_markers_preview_doc ()
 713 {
 714 gchar const *buffer = "<svg xmlns=\"http://www.w3.org/2000/svg\" xmlns:sodipodi=\"http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd\" xmlns:inkscape=\"http://www.inkscape.org/namespaces/inkscape\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">"
 715 "  <defs id=\"defs\" />"
 716
 717 "  <g id=\"marker-start\">"
 718 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:url(#sample);marker-mid:none;marker-end:none\""
 719 "       d=\"M 12.5,13 L 25,13\" id=\"path1\" />"
 720 "    <rect style=\"fill:none;stroke:none\" id=\"rect2\""
 721 "       width=\"25\" height=\"25\" x=\"0\" y=\"0\" />"
 722 "  </g>"
 723
 724 "  <g id=\"marker-mid\">"
 725 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:url(#sample);marker-end:none\""
 726 "       d=\"M 0,113 L 12.5,113 L 25,113\" id=\"path11\" />"
 727 "    <rect style=\"fill:none;stroke:none\" id=\"rect22\""
 728 "       width=\"25\" height=\"25\" x=\"0\" y=\"100\" />"
 729 "  </g>"
 730
 731 "  <g id=\"marker-end\">"
 732 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:none;marker-end:url(#sample)\""
 733 "       d=\"M 0,213 L 12.5,213\" id=\"path111\" />"
 734 "    <rect style=\"fill:none;stroke:none\" id=\"rect222\""
 735 "       width=\"25\" height=\"25\" x=\"0\" y=\"200\" />"
 736 "  </g>"
 737
 738 "</svg>";
 739
 740     return sp_document_new_from_mem (buffer, strlen(buffer), FALSE);
 741 }
 742
 743
 744
 745 static GtkWidget *
 746 ink_marker_menu( GtkWidget *tbl, gchar *menu_id, SPDocument *sandbox)
 747 {
 748     SPDesktop *desktop = inkscape_active_desktop();
 749     SPDocument *doc = sp_desktop_document(desktop);
 750     GtkWidget *mnu = gtk_option_menu_new();
 751
 752     /* Create new menu widget */
 753     GtkWidget *m = gtk_menu_new();
 754     gtk_widget_show(m);
 755
 756     g_object_set_data(G_OBJECT(mnu), "updating", (gpointer) FALSE);
 757
 758     if (!doc) {
 759         GtkWidget *i = gtk_menu_item_new_with_label(_("No document selected"));
 760         gtk_widget_show(i);
 761         gtk_menu_append(GTK_MENU(m), i);
 762         gtk_widget_set_sensitive(mnu, FALSE);
 763
 764     } else {
 765
 766         // add "None"
 767         {
 768             GtkWidget *i = gtk_menu_item_new();
 769             gtk_widget_show(i);
 770
 771             g_object_set_data(G_OBJECT(i), "marker", (void *) "none");
 772
 773             GtkWidget *hb = gtk_hbox_new(FALSE,  MARKER_ITEM_MARGIN);
 774             gtk_widget_show(hb);
 775
 776             GtkWidget *l = gtk_label_new( _("None") );
 777             gtk_widget_show(l);
 778             gtk_misc_set_alignment(GTK_MISC(l), 0.0, 0.5);
 779
 780             gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
 781
 782             gtk_widget_show(hb);
 783             gtk_container_add(GTK_CONTAINER(i), hb);
 784             gtk_menu_append(GTK_MENU(m), i);
 785         }
 786
 787         // find and load  markers.svg
 788         static SPDocument *markers_doc = NULL;
 789         char *markers_source = g_build_filename(INKSCAPE_MARKERSDIR, "markers.svg", NULL);
 790         if (Inkscape::IO::file_test(markers_source, G_FILE_TEST_IS_REGULAR)) {
 791             markers_doc = sp_document_new(markers_source, FALSE);
 792         }
 793         g_free(markers_source);
 794
 795         // suck in from current doc
 796         sp_marker_list_from_doc ( m, NULL, doc, markers_doc, sandbox, menu_id );
 797
 798         // add separator
 799         {
 800             GtkWidget *i = gtk_separator_menu_item_new();
 801             gtk_widget_show(i);
 802             gtk_menu_append(GTK_MENU(m), i);
 803         }
 804
 805         // suck in from markers.svg
 806         if (markers_doc) {
 807             sp_document_ensure_up_to_date(doc);
 808             sp_marker_list_from_doc ( m, doc, markers_doc, NULL, sandbox, menu_id );
 809         }
 810
 811         gtk_widget_set_sensitive(mnu, TRUE);
 812     }
 813
 814     gtk_object_set_data(GTK_OBJECT(mnu), "menu_id", menu_id);
 815     gtk_option_menu_set_menu(GTK_OPTION_MENU(mnu), m);
 816
 817     /* Set history */
 818     gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
 819
 820     return mnu;
 821 }
 822
 823
 824 /*user selected existing marker from list*/
 825 static void
 826 sp_marker_select(GtkOptionMenu *mnu, GtkWidget *spw)
 827 {
 828     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 829         return;
 830     }
 831
 832     SPDesktop *desktop = inkscape_active_desktop();
 833     SPDocument *document = sp_desktop_document(desktop);
 834     if (!document) {
 835         return;
 836     }
 837
 838     /* Get Marker */
 839     if (!g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 840                            "marker"))
 841     {
 842         return;
 843     }
 844     gchar *markid = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 845                                                 "marker");
 846     gchar *marker = "";
 847     if (strcmp(markid, "none")){
 848        gchar *stockid = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 849                                                 "stockid");
 850
 851        gchar *markurn = markid;
 852        if (!strcmp(stockid,"true")) markurn = g_strconcat("urn:inkscape:marker:",markid,NULL);
 853        SPObject *mark = get_stock_item(markurn);
 854        if (mark) {
 855             Inkscape::XML::Node *repr = SP_OBJECT_REPR(mark);
 856             marker = g_strconcat("url(#", repr->attribute("id"), ")", NULL);
 857         }
 858     } else {
 859         marker = markid;
 860     }
 861
 862     SPCSSAttr *css = sp_repr_css_attr_new();
 863     gchar *menu_id = (gchar *) g_object_get_data(G_OBJECT(mnu), "menu_id");
 864     sp_repr_css_set_property(css, menu_id, marker);
 865
 866      Inkscape::Selection *selection = sp_desktop_selection(desktop);
 867      GSList const *items = selection->itemList();
 868      for (; items != NULL; items = items->next) {
 869          SPItem *item = (SPItem *) items->data;
 870          if (!SP_IS_SHAPE(item) || SP_IS_RECT(item)) // can't set marker to rect, until it's converted to using <path>
 871              continue;
 872          Inkscape::XML::Node *selrepr = SP_OBJECT_REPR((SPItem *) items->data);
 873          if (selrepr) {
 874              sp_repr_css_change_recursive(selrepr, css, "style");
 875          }
 876          SP_OBJECT(items->data)->requestModified(SP_OBJECT_MODIFIED_FLAG);
 877          SP_OBJECT(items->data)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
 878      }
 879
 880     sp_repr_css_attr_unref(css);
 881
 882     sp_document_done(document);
 883 }
 884
 885 static gboolean stroke_width_set_unit(SPUnitSelector *,
 886                                                  SPUnit const *old,
 887                                                  SPUnit const *new_units,
 888                                                  GObject *spw)
 889 {
 890     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 891
 892     if (!desktop) {
 893         return FALSE;
 894     }
 895
 896     Inkscape::Selection *selection = sp_desktop_selection (desktop);
 897
 898     if (selection->isEmpty())
 899         return FALSE;
 900
 901     GSList const *objects = selection->itemList();
 902
 903     if ((old->base == SP_UNIT_ABSOLUTE || old->base == SP_UNIT_DEVICE) &&
 904        (new_units->base == SP_UNIT_DIMENSIONLESS)) {
 905
 906         /* Absolute to percentage */
 907         g_object_set_data (spw, "update", GUINT_TO_POINTER (TRUE));
 908
 909         GtkAdjustment *a = GTK_ADJUSTMENT(g_object_get_data (spw, "width"));
 910         float w = sp_units_get_pixels (a->value, *old);
 911
 912         gdouble average = stroke_average_width (objects);
 913
 914         if (average == NR_HUGE || average == 0)
 915             return FALSE;
 916
 917         gtk_adjustment_set_value (a, 100.0 * w / average);
 918
 919         g_object_set_data (spw, "update", GUINT_TO_POINTER (FALSE));
 920         return TRUE;
 921
 922     } else if ((old->base == SP_UNIT_DIMENSIONLESS) &&
 923               (new_units->base == SP_UNIT_ABSOLUTE || new_units->base == SP_UNIT_DEVICE)) {
 924
 925         /* Percentage to absolute */
 926         g_object_set_data (spw, "update", GUINT_TO_POINTER (TRUE));
 927
 928         GtkAdjustment *a = GTK_ADJUSTMENT(g_object_get_data (spw, "width"));
 929
 930         gdouble average = stroke_average_width (objects);
 931
 932         gtk_adjustment_set_value (a, sp_pixels_get_units (0.01 * a->value * average, *new_units));
 933
 934         g_object_set_data (spw, "update", GUINT_TO_POINTER (FALSE));
 935         return TRUE;
 936     }
 937
 938     return FALSE;
 939 }
 940
 941
 942 /**
 943  * \brief  Creates a new widget for the line stroke style.
 944  *
 945  */
 946 GtkWidget *
 947 sp_stroke_style_line_widget_new(void)
 948 {
 949     GtkWidget *spw, *f, *t, *hb, *sb, *us, *tb, *ds;
 950     GtkObject *a;
 951
 952     GtkTooltips *tt = gtk_tooltips_new();
 953
 954     spw = sp_widget_new_global(INKSCAPE);
 955
 956     f = gtk_hbox_new (FALSE, 0);
 957     gtk_widget_show(f);
 958     gtk_container_add(GTK_CONTAINER(spw), f);
 959
 960     t = gtk_table_new(3, 6, FALSE);
 961     gtk_widget_show(t);
 962     gtk_container_set_border_width(GTK_CONTAINER(t), 4);
 963     gtk_table_set_row_spacings(GTK_TABLE(t), 4);
 964     gtk_container_add(GTK_CONTAINER(f), t);
 965     gtk_object_set_data(GTK_OBJECT(spw), "stroke", t);
 966
 967     gint i = 0;
 968
 969     /* Stroke width */
 970     spw_label(t, _("Width:"), 0, i);
 971
 972     hb = spw_hbox(t, 3, 1, i);
 973
 974 // TODO: when this is gtkmmified, use an Inkscape::UI::Widget::ScalarUnit instead of the separate
 975 // spinbutton and unit selector for stroke width. In sp_stroke_style_line_update, use
 976 // setHundredPercent to remember the aeraged width corresponding to 100%. Then the
 977 // stroke_width_set_unit will be removed (because ScalarUnit takes care of conversions itself), and
 978 // with it, the two remaining calls of stroke_average_width, allowing us to get rid of that
 979 // function in desktop-style.
 980
 981     a = gtk_adjustment_new(1.0, 0.0, 1000.0, 0.1, 10.0, 10.0);
 982     gtk_object_set_data(GTK_OBJECT(spw), "width", a);
 983     sb = gtk_spin_button_new(GTK_ADJUSTMENT(a), 0.1, 3);
 984     gtk_tooltips_set_tip(tt, sb, _("Stroke width"), NULL);
 985     gtk_widget_show(sb);
 986
 987     sp_dialog_defocus_on_enter(sb);
 988
 989     gtk_box_pack_start(GTK_BOX(hb), sb, FALSE, FALSE, 0);
 990     us = sp_unit_selector_new(SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE);
 991     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 992     if (desktop)
 993         sp_unit_selector_set_unit (SP_UNIT_SELECTOR(us), sp_desktop_namedview(desktop)->doc_units);
 994     sp_unit_selector_add_unit(SP_UNIT_SELECTOR(us), &sp_unit_get_by_id(SP_UNIT_PERCENT), 0);
 995     g_signal_connect ( G_OBJECT (us), "set_unit", G_CALLBACK (stroke_width_set_unit), spw );
 996     gtk_widget_show(us);
 997     sp_unit_selector_add_adjustment( SP_UNIT_SELECTOR(us), GTK_ADJUSTMENT(a) );
 998     gtk_box_pack_start(GTK_BOX(hb), us, FALSE, FALSE, 0);
 999     gtk_object_set_data(GTK_OBJECT(spw), "units", us);
1000
1001     gtk_signal_connect( GTK_OBJECT(a), "value_changed", GTK_SIGNAL_FUNC(sp_stroke_style_width_changed), spw );
1002     i++;
1003
1004     /* Join type */
1005     // TRANSLATORS: The line join style specifies the shape to be used at the
1006     //  corners of paths. It can be "miter", "round" or "bevel".
1007     spw_label(t, _("Join:"), 0, i);
1008
1009     hb = spw_hbox(t, 3, 1, i);
1010
1011     tb = NULL;
1012
1013     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_MITER,
1014                                 hb, spw, "join", "miter");
1015
1016     // TRANSLATORS: Miter join: joining lines with a sharp (pointed) corner.
1017     //  For an example, draw a triangle with a large stroke width and modify the
1018     //  "Join" option (in the Fill and Stroke dialog).
1019     gtk_tooltips_set_tip(tt, tb, _("Miter join"), NULL);
1020
1021     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_ROUND,
1022                                 hb, spw, "join", "round");
1023
1024     // TRANSLATORS: Round join: joining lines with a rounded corner.
1025     //  For an example, draw a triangle with a large stroke width and modify the
1026     //  "Join" option (in the Fill and Stroke dialog).
1027     gtk_tooltips_set_tip(tt, tb, _("Round join"), NULL);
1028
1029     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_BEVEL,
1030                                 hb, spw, "join", "bevel");
1031
1032     // TRANSLATORS: Bevel join: joining lines with a blunted (flattened) corner.
1033     //  For an example, draw a triangle with a large stroke width and modify the
1034     //  "Join" option (in the Fill and Stroke dialog).
1035     gtk_tooltips_set_tip(tt, tb, _("Bevel join"), NULL);
1036
1037     i++;
1038
1039     /* Miterlimit  */
1040     // TRANSLATORS: Miter limit: only for "miter join", this limits the length
1041     //  of the sharp "spike" when the lines connect at too sharp an angle.
1042     // When two line segments meet at a sharp angle, a miter join results in a
1043     //  spike that extends well beyond the connection point. The purpose of the
1044     //  miter limit is to cut off such spikes (i.e. convert them into bevels)
1045     //  when they become too long.
1046     spw_label(t, _("Miter limit:"), 0, i);
1047
1048     hb = spw_hbox(t, 3, 1, i);
1049
1050     a = gtk_adjustment_new(4.0, 0.0, 100.0, 0.1, 10.0, 10.0);
1051     gtk_object_set_data(GTK_OBJECT(spw), "miterlimit", a);
1052
1053     sb = gtk_spin_button_new(GTK_ADJUSTMENT(a), 0.1, 2);
1054     gtk_tooltips_set_tip(tt, sb, _("Maximum length of the miter (in units of stroke width)"), NULL);
1055     gtk_widget_show(sb);
1056     gtk_object_set_data(GTK_OBJECT(spw), "miterlimit_sb", sb);
1057     sp_dialog_defocus_on_enter(sb);
1058
1059     gtk_box_pack_start(GTK_BOX(hb), sb, FALSE, FALSE, 0);
1060
1061     gtk_signal_connect( GTK_OBJECT(a), "value_changed",
1062                         GTK_SIGNAL_FUNC(sp_stroke_style_miterlimit_changed), spw );
1063     i++;
1064
1065     /* Cap type */
1066     // TRANSLATORS: cap type specifies the shape for the ends of lines
1067     spw_label(t, _("Cap:"), 0, i);
1068
1069     hb = spw_hbox(t, 3, 1, i);
1070
1071     tb = NULL;
1072
1073     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_BUTT,
1074                                 hb, spw, "cap", "butt");
1075
1076     // TRANSLATORS: Butt cap: the line shape does not extend beyond the end point
1077     //  of the line; the ends of the line are square
1078     gtk_tooltips_set_tip(tt, tb, _("Butt cap"), NULL);
1079
1080     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_ROUND,
1081                                 hb, spw, "cap", "round");
1082
1083     // TRANSLATORS: Round cap: the line shape extends beyond the end point of the
1084     //  line; the ends of the line are rounded
1085     gtk_tooltips_set_tip(tt, tb, _("Round cap"), NULL);
1086
1087     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_SQUARE,
1088                                 hb, spw, "cap", "square");
1089
1090     // TRANSLATORS: Square cap: the line shape extends beyond the end point of the
1091     //  line; the ends of the line are square
1092     gtk_tooltips_set_tip(tt, tb, _("Square cap"), NULL);
1093
1094     i++;
1095
1096
1097     /* Dash */
1098     spw_label(t, _("Dashes:"), 0, i);
1099     ds = sp_dash_selector_new( inkscape_get_repr( INKSCAPE,
1100                                                   "palette.dashes") );
1101
1102     gtk_widget_show(ds);
1103     gtk_table_attach( GTK_TABLE(t), ds, 1, 4, i, i+1,
1104                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1105                       (GtkAttachOptions)0, 0, 0 );
1106     gtk_object_set_data(GTK_OBJECT(spw), "dash", ds);
1107     gtk_signal_connect( GTK_OBJECT(ds), "changed",
1108                         GTK_SIGNAL_FUNC(sp_stroke_style_line_dash_changed),
1109                         spw );
1110     i++;
1111
1112     /* Drop down marker selectors*/
1113
1114     // doing this here once, instead of for each preview, to speed things up
1115     SPDocument *sandbox = ink_markers_preview_doc ();
1116
1117     // TRANSLATORS: Path markers are an SVG feature that allows you to attach arbitrary shapes
1118     // (arrowheads, bullets, faces, whatever) to the start, end, or middle nodes of a path.
1119     spw_label(t, _("Start Markers:"), 0, i);
1120     GtkWidget *mnu  = ink_marker_menu( spw ,"marker-start", sandbox);
1121     gtk_signal_connect( GTK_OBJECT(mnu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1122     gtk_widget_show(mnu);
1123     gtk_table_attach( GTK_TABLE(t), mnu, 1, 4, i, i+1,
1124                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1125                       (GtkAttachOptions)0, 0, 0 );
1126     gtk_object_set_data(GTK_OBJECT(spw), "start_mark_menu", mnu);
1127
1128     i++;
1129     spw_label(t, _("Mid Markers:"), 0, i);
1130     mnu = NULL;
1131     mnu  = ink_marker_menu( spw ,"marker-mid", sandbox);
1132     gtk_signal_connect( GTK_OBJECT(mnu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1133     gtk_widget_show(mnu);
1134     gtk_table_attach( GTK_TABLE(t), mnu, 1, 4, i, i+1,
1135                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1136                       (GtkAttachOptions)0, 0, 0 );
1137     gtk_object_set_data(GTK_OBJECT(spw), "mid_mark_menu", mnu);
1138
1139     i++;
1140     spw_label(t, _("End Markers:"), 0, i);
1141     mnu = NULL;
1142     mnu  = ink_marker_menu( spw ,"marker-end", sandbox);
1143     gtk_signal_connect( GTK_OBJECT(mnu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1144     gtk_widget_show(mnu);
1145     gtk_table_attach( GTK_TABLE(t), mnu, 1, 4, i, i+1,
1146                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1147                       (GtkAttachOptions)0, 0, 0 );
1148     gtk_object_set_data(GTK_OBJECT(spw), "end_mark_menu", mnu);
1149
1150     i++;
1151
1152     gtk_signal_connect( GTK_OBJECT(spw), "construct",
1153                         GTK_SIGNAL_FUNC(sp_stroke_style_line_construct),
1154                         NULL );
1155     gtk_signal_connect( GTK_OBJECT(spw), "modify_selection",
1156                         GTK_SIGNAL_FUNC(sp_stroke_style_line_selection_modified),
1157                         NULL );
1158     gtk_signal_connect( GTK_OBJECT(spw), "change_selection",
1159                         GTK_SIGNAL_FUNC(sp_stroke_style_line_selection_changed),
1160                         NULL );
1161
1162     sp_stroke_style_line_update( SP_WIDGET(spw), desktop ? sp_desktop_selection(desktop) : NULL);
1163
1164     return spw;
1165 }
1166
1167
1168
1169 static void
1170 sp_stroke_style_line_construct(SPWidget *spw, gpointer data)
1171 {
1172
1173 #ifdef SP_SS_VERBOSE
1174     g_print( "Stroke style widget constructed: inkscape %p repr %p\n",
1175              spw->inkscape, spw->repr );
1176 #endif
1177     if (spw->inkscape) {
1178         sp_stroke_style_line_update(spw,
1179                                     ( SP_ACTIVE_DESKTOP
1180                                       ? sp_desktop_selection(SP_ACTIVE_DESKTOP)
1181                                       : NULL ));
1182     }
1183 }
1184
1185 static void
1186 sp_stroke_style_line_selection_modified ( SPWidget *spw,
1187                                        Inkscape::Selection *selection,
1188                                        guint flags,
1189                                        gpointer data )
1190 {
1191     if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_PARENT_MODIFIED_FLAG)) {
1192         sp_stroke_style_line_update (spw, selection);
1193     }
1194
1195 }
1196
1197 static void
1198 sp_stroke_style_line_selection_changed ( SPWidget *spw,
1199                                        Inkscape::Selection *selection,
1200                                        gpointer data )
1201 {
1202     sp_stroke_style_line_update (spw, selection);
1203 }
1204
1205
1206 static void
1207 sp_dash_selector_set_from_style (GtkWidget *dsel, SPStyle *style)
1208 {
1209     if (style->stroke_dash.n_dash > 0) {
1210         double d[64];
1211         int len = MIN(style->stroke_dash.n_dash, 64);
1212         for (int i = 0; i < len; i++) {
1213             if (style->stroke_width.computed != 0)
1214                 d[i] = style->stroke_dash.dash[i] / style->stroke_width.computed;
1215             else
1216                 d[i] = style->stroke_dash.dash[i]; // is there a better thing to do for stroke_width==0?
1217         }
1218         sp_dash_selector_set_dash(SP_DASH_SELECTOR(dsel), len, d,
1219                style->stroke_width.computed != 0?
1220                     style->stroke_dash.offset / style->stroke_width.computed  :
1221                     style->stroke_dash.offset);
1222     } else {
1223         sp_dash_selector_set_dash(SP_DASH_SELECTOR(dsel), 0, NULL, 0.0);
1224     }
1225 }
1226
1227 static void
1228 sp_jointype_set (SPWidget *spw, unsigned const jointype)
1229 {
1230     GtkWidget *tb = NULL;
1231     switch (jointype) {
1232         case SP_STROKE_LINEJOIN_MITER:
1233             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_MITER));
1234             break;
1235         case SP_STROKE_LINEJOIN_ROUND:
1236             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_ROUND));
1237             break;
1238         case SP_STROKE_LINEJOIN_BEVEL:
1239             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_BEVEL));
1240             break;
1241         default:
1242             break;
1243     }
1244     sp_stroke_style_set_join_buttons (spw, tb);
1245 }
1246
1247 static void
1248 sp_captype_set (SPWidget *spw, unsigned const captype)
1249 {
1250     GtkWidget *tb = NULL;
1251     switch (captype) {
1252         case SP_STROKE_LINECAP_BUTT:
1253             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_BUTT));
1254             break;
1255         case SP_STROKE_LINECAP_ROUND:
1256             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_ROUND));
1257             break;
1258         case SP_STROKE_LINECAP_SQUARE:
1259             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_SQUARE));
1260             break;
1261         default:
1262             break;
1263     }
1264     sp_stroke_style_set_cap_buttons (spw, tb);
1265 }
1266
1267 static void
1268 sp_stroke_style_line_update(SPWidget *spw, Inkscape::Selection *sel)
1269 {
1270     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1271         return;
1272     }
1273
1274     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
1275
1276     GtkWidget *sset = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "stroke"));
1277     GtkObject *width = GTK_OBJECT(gtk_object_get_data(GTK_OBJECT(spw), "width"));
1278     GtkObject *ml = GTK_OBJECT(gtk_object_get_data(GTK_OBJECT(spw), "miterlimit"));
1279     GtkWidget *us = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "units"));
1280     GtkWidget *dsel = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "dash"));
1281
1282     // create temporary style
1283     SPStyle *query = sp_style_new ();
1284     // query into it
1285     int result_sw = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEWIDTH);
1286     int result_ml = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT);
1287     int result_cap = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKECAP);
1288     int result_join = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEJOIN);
1289
1290     if (result_sw == QUERY_STYLE_NOTHING) {
1291         /* No objects stroked, set insensitive */
1292         gtk_widget_set_sensitive(sset, FALSE);
1293
1294         gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
1295         return;
1296     } else {
1297         gtk_widget_set_sensitive(sset, TRUE);
1298
1299         SPUnit const *unit = sp_unit_selector_get_unit(SP_UNIT_SELECTOR(us));
1300
1301         if (result_sw == QUERY_STYLE_MULTIPLE_AVERAGED) {
1302             sp_unit_selector_set_unit(SP_UNIT_SELECTOR(us), &sp_unit_get_by_id(SP_UNIT_PERCENT));
1303         } else {
1304             // same width, or only one object; no sense to keep percent, switch to absolute
1305             if (unit->base != SP_UNIT_ABSOLUTE && unit->base != SP_UNIT_DEVICE) {
1306                 sp_unit_selector_set_unit(SP_UNIT_SELECTOR(us), sp_desktop_namedview(SP_ACTIVE_DESKTOP)->doc_units);
1307             }
1308         }
1309
1310         unit = sp_unit_selector_get_unit (SP_UNIT_SELECTOR (us));
1311
1312         if (unit->base == SP_UNIT_ABSOLUTE || unit->base == SP_UNIT_DEVICE) {
1313             double avgwidth = sp_pixels_get_units (query->stroke_width.computed, *unit);
1314             gtk_adjustment_set_value(GTK_ADJUSTMENT(width), avgwidth);
1315         } else {
1316             gtk_adjustment_set_value(GTK_ADJUSTMENT(width), 100);
1317         }
1318     }
1319
1320     if (result_ml != QUERY_STYLE_NOTHING)
1321         gtk_adjustment_set_value(GTK_ADJUSTMENT(ml), query->stroke_miterlimit.value); // TODO: reflect averagedness?
1322
1323     if (result_join != QUERY_STYLE_MULTIPLE_DIFFERENT) {
1324         sp_jointype_set (spw, query->stroke_linejoin.value);
1325     } else {
1326         sp_stroke_style_set_join_buttons(spw, NULL);
1327     }
1328
1329     if (result_cap != QUERY_STYLE_MULTIPLE_DIFFERENT) {
1330         sp_captype_set (spw, query->stroke_linecap.value);
1331     } else {
1332         sp_stroke_style_set_cap_buttons(spw, NULL);
1333     }
1334
1335     g_free (query);
1336
1337     GSList const *objects = sel->itemList();
1338     SPObject * const object = SP_OBJECT(objects->data);
1339     SPStyle * const style = SP_OBJECT_STYLE(object);
1340
1341     /* Markers */
1342     sp_stroke_style_update_marker_menus(spw, objects); // FIXME: make this desktop query too
1343
1344     /* Dash */
1345     sp_dash_selector_set_from_style (dsel, style); // FIXME: make this desktop query too
1346
1347     gtk_widget_set_sensitive(sset, TRUE);
1348
1349     gtk_object_set_data(GTK_OBJECT(spw), "update",
1350                         GINT_TO_POINTER(FALSE));
1351 }
1352
1353 static void
1354 sp_stroke_style_set_scaled_dash(SPCSSAttr *css,
1355                                 int ndash, double *dash, double offset,
1356                                 double scale)
1357 {
1358     if (ndash > 0) {
1359         Inkscape::CSSOStringStream osarray;
1360         for (int i = 0; i < ndash; i++) {
1361             osarray << dash[i] * scale;
1362             if (i < (ndash - 1)) {
1363                 osarray << ",";
1364             }
1365         }
1366         sp_repr_css_set_property(css, "stroke-dasharray", osarray.str().c_str());
1367
1368         Inkscape::CSSOStringStream osoffset;
1369         osoffset << offset * scale;
1370         sp_repr_css_set_property(css, "stroke-dashoffset", osoffset.str().c_str());
1371     } else {
1372         sp_repr_css_set_property(css, "stroke-dasharray", "none");
1373         sp_repr_css_set_property(css, "stroke-dashoffset", NULL);
1374     }
1375 }
1376
1377 static void
1378 sp_stroke_style_scale_line(SPWidget *spw)
1379 {
1380     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1381         return;
1382     }
1383
1384     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
1385
1386     GtkAdjustment *wadj = GTK_ADJUSTMENT(gtk_object_get_data(GTK_OBJECT(spw), "width"));
1387     SPUnitSelector *us = SP_UNIT_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "units"));
1388     SPDashSelector *dsel = SP_DASH_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "dash"));
1389     GtkAdjustment *ml = GTK_ADJUSTMENT(gtk_object_get_data(GTK_OBJECT(spw), "miterlimit"));
1390
1391     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1392     SPDocument *document = sp_desktop_document (desktop);
1393     Inkscape::Selection *selection = sp_desktop_selection (desktop);
1394
1395     GSList const *items = selection->itemList();
1396
1397     /* TODO: Create some standardized method */
1398     SPCSSAttr *css = sp_repr_css_attr_new();
1399
1400     if (items) {
1401
1402         double width_typed = wadj->value;
1403         double const miterlimit = ml->value;
1404
1405         SPUnit const *const unit = sp_unit_selector_get_unit(SP_UNIT_SELECTOR(us));
1406
1407         double *dash, offset;
1408         int ndash;
1409         sp_dash_selector_get_dash(dsel, &ndash, &dash, &offset);
1410
1411         for (GSList const *i = items; i != NULL; i = i->next) {
1412             /* Set stroke width */
1413             double width;
1414             if (unit->base == SP_UNIT_ABSOLUTE || unit->base == SP_UNIT_DEVICE) {
1415                 width = sp_units_get_pixels (width_typed, *unit);
1416             } else { // percentage
1417                 gdouble old_w = SP_OBJECT_STYLE (i->data)->stroke_width.computed;
1418                 width = old_w * width_typed / 100;
1419             }
1420
1421             {
1422                 Inkscape::CSSOStringStream os_width;
1423                 os_width << width;
1424                 sp_repr_css_set_property(css, "stroke-width", os_width.str().c_str());
1425             }
1426
1427             {
1428                 Inkscape::CSSOStringStream os_ml;
1429                 os_ml << miterlimit;
1430                 sp_repr_css_set_property(css, "stroke-miterlimit", os_ml.str().c_str());
1431             }
1432
1433             /* Set dash */
1434             sp_stroke_style_set_scaled_dash(css, ndash, dash, offset, width);
1435
1436             sp_desktop_apply_css_recursive (SP_OBJECT(i->data), css, true);
1437         }
1438
1439         g_free(dash);
1440
1441         if (unit->base != SP_UNIT_ABSOLUTE && unit->base != SP_UNIT_DEVICE) {
1442             // reset to 100 percent
1443             gtk_adjustment_set_value (wadj, 100.0);
1444         }
1445
1446     }
1447
1448     // we have already changed the items, so set style without changing selection
1449     // FIXME: move the above stroke-setting stuff, including percentages, to desktop-style
1450     sp_desktop_set_style (desktop, css, false);
1451
1452     sp_repr_css_attr_unref(css);
1453
1454     sp_document_done(document);
1455
1456     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
1457 }
1458
1459
1460
1461 static void
1462 sp_stroke_style_width_changed(GtkAdjustment *adj, SPWidget *spw)
1463 {
1464     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1465         return;
1466     }
1467
1468     sp_stroke_style_scale_line(spw);
1469 }
1470
1471 static void
1472 sp_stroke_style_miterlimit_changed(GtkAdjustment *adj, SPWidget *spw)
1473 {
1474     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1475         return;
1476     }
1477
1478     sp_stroke_style_scale_line(spw);
1479 }
1480
1481 static void
1482 sp_stroke_style_line_dash_changed(SPDashSelector *dsel, SPWidget *spw)
1483 {
1484     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1485         return;
1486     }
1487
1488     sp_stroke_style_scale_line(spw);
1489 }
1490
1491
1492
1493 /**
1494  * \brief  This routine handles toggle events for buttons in the stroke style
1495  *         dialog.
1496  * When activated, this routine gets the data for the various widgets, and then
1497  * calls the respective routines to update css properties, etc.
1498  *
1499  */
1500 static void
1501 sp_stroke_style_any_toggled(GtkToggleButton *tb, SPWidget *spw)
1502 {
1503     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1504         return;
1505     }
1506
1507     if (gtk_toggle_button_get_active(tb)) {
1508
1509         gchar const *join
1510             = static_cast<gchar const *>(gtk_object_get_data(GTK_OBJECT(tb), "join"));
1511         gchar const *cap
1512             = static_cast<gchar const *>(gtk_object_get_data(GTK_OBJECT(tb), "cap"));
1513
1514         if (join) {
1515             GtkWidget *ml = GTK_WIDGET(g_object_get_data(G_OBJECT(spw), "miterlimit_sb"));
1516             gtk_widget_set_sensitive (ml, !strcmp(join, "miter"));
1517         }
1518
1519         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1520
1521         /* TODO: Create some standardized method */
1522         SPCSSAttr *css = sp_repr_css_attr_new();
1523
1524         if (join) {
1525             sp_repr_css_set_property(css, "stroke-linejoin", join);
1526
1527             sp_desktop_set_style (desktop, css);
1528
1529             sp_stroke_style_set_join_buttons(spw, GTK_WIDGET(tb));
1530         } else if (cap) {
1531             sp_repr_css_set_property(css, "stroke-linecap", cap);
1532
1533             sp_desktop_set_style (desktop, css);
1534
1535             sp_stroke_style_set_cap_buttons(spw, GTK_WIDGET(tb));
1536         }
1537
1538         sp_repr_css_attr_unref(css);
1539
1540         sp_document_done(sp_desktop_document(desktop));
1541     }
1542 }
1543
1544
1545 static void
1546 sp_stroke_style_set_join_buttons(SPWidget *spw, GtkWidget *active)
1547 {
1548     GtkWidget *tb;
1549
1550     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1551                                          INKSCAPE_STOCK_JOIN_MITER) );
1552     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1553
1554     GtkWidget *ml = GTK_WIDGET(g_object_get_data(G_OBJECT(spw), "miterlimit_sb"));
1555     gtk_widget_set_sensitive(ml, (active == tb));
1556
1557     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1558                                          INKSCAPE_STOCK_JOIN_ROUND) );
1559     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1560     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1561                                          INKSCAPE_STOCK_JOIN_BEVEL) );
1562     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1563 }
1564
1565
1566
1567 static void
1568 sp_stroke_style_set_cap_buttons(SPWidget *spw, GtkWidget *active)
1569 {
1570     GtkWidget *tb;
1571
1572     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1573                                          INKSCAPE_STOCK_CAP_BUTT));
1574     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1575     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1576                                          INKSCAPE_STOCK_CAP_ROUND) );
1577     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1578     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1579                                          INKSCAPE_STOCK_CAP_SQUARE) );
1580     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1581 }
1582
1583 static void
1584 ink_marker_menu_set_current(SPObject *marker, GtkOptionMenu *mnu)
1585 {
1586     gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(TRUE));
1587
1588     GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu(mnu));
1589     if (marker != NULL) {
1590         bool mark_is_stock = false;
1591         if (SP_OBJECT_REPR(marker)->attribute("inkscape:stockid"))
1592             mark_is_stock = true;
1593
1594         gchar *markname;
1595         if (mark_is_stock)
1596             markname = g_strdup(SP_OBJECT_REPR(marker)->attribute("inkscape:stockid"));
1597         else
1598             markname = g_strdup(SP_OBJECT_REPR(marker)->attribute("id"));
1599
1600         int markpos = 0;
1601         GList *kids = GTK_MENU_SHELL(m)->children;
1602         int i = 0;
1603         for (; kids != NULL; kids = kids->next) {
1604             gchar *mark = (gchar *) g_object_get_data(G_OBJECT(kids->data), "marker");
1605             if ( mark && strcmp(mark, markname) == 0 ) {
1606                 if ( mark_is_stock && !strcmp((gchar *) g_object_get_data(G_OBJECT(kids->data), "stockid"), "true"))
1607                     markpos = i;
1608                 if ( !mark_is_stock && !strcmp((gchar *) g_object_get_data(G_OBJECT(kids->data), "stockid"), "false"))
1609                     markpos = i;
1610             }
1611             i++;
1612         }
1613         gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), markpos);
1614
1615         g_free (markname);
1616     }
1617     else {
1618         gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
1619     }
1620     gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(FALSE));
1621 }
1622
1623 static void
1624 sp_stroke_style_update_marker_menus( SPWidget *spw,
1625                                      GSList const *objects)
1626 {
1627     struct { char const *key; int loc; } const keyloc[] = {
1628         { "start_mark_menu", SP_MARKER_LOC_START },
1629         { "mid_mark_menu", SP_MARKER_LOC_MID },
1630         { "end_mark_menu", SP_MARKER_LOC_END }
1631     };
1632
1633     bool all_texts = true;
1634     for (GSList *i = (GSList *) objects; i != NULL; i = i->next) {
1635         if (!SP_IS_TEXT (i->data)) {
1636             all_texts = false;
1637         }
1638     }
1639
1640     for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
1641         GtkOptionMenu *mnu = (GtkOptionMenu *) g_object_get_data(G_OBJECT(spw), keyloc[i].key);
1642         if (all_texts) {
1643             // Per SVG spec, text objects cannot have markers; disable menus if only texts are selected
1644             gtk_widget_set_sensitive (GTK_WIDGET(mnu), FALSE);
1645         } else {
1646             gtk_widget_set_sensitive (GTK_WIDGET(mnu), TRUE);
1647         }
1648     }
1649
1650     // We show markers of the first object in the list only
1651     // FIXME: use the first in the list that has the marker of each type, if any
1652     SPObject *object = SP_OBJECT(objects->data);
1653
1654     for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
1655         // For all three marker types,
1656
1657         // find the corresponding menu
1658         GtkOptionMenu *mnu = (GtkOptionMenu *) g_object_get_data(G_OBJECT(spw), keyloc[i].key);
1659
1660         // Quit if we're in update state
1661         if (gtk_object_get_data(GTK_OBJECT(mnu), "update")) {
1662             return;
1663         }
1664
1665         if (object->style->marker[keyloc[i].loc].value != NULL && !all_texts) {
1666             // If the object has this type of markers,
1667
1668             // Extract the name of the marker that the object uses
1669             SPObject *marker = ink_extract_marker_name(object->style->marker[keyloc[i].loc].value);
1670             // Scroll the menu to that marker
1671             ink_marker_menu_set_current (marker, mnu);
1672
1673         } else {
1674             gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
1675         }
1676     }
1677 }
1678
1679
1680 /** Extract the actual name of the link
1681  * e.g. get mTriangle from url(#mTriangle).
1682  * \return Buffer containing the actual name, allocated from GLib;
1683  * the caller should free the buffer when they no longer need it.
1684  */
1685 static SPObject*
1686 ink_extract_marker_name(gchar const *n)
1687 {
1688     gchar const *p = n;
1689     while (*p != '\0' && *p != '#') {
1690         p++;
1691     }
1692
1693     if (*p == '\0' || p[1] == '\0') {
1694         return NULL;
1695     }
1696
1697     p++;
1698     int c = 0;
1699     while (p[c] != '\0' && p[c] != ')') {
1700         c++;
1701     }
1702
1703     if (p[c] == '\0') {
1704         return NULL;
1705     }
1706
1707     gchar* b = g_strdup(p);
1708     b[c] = '\0';
1709
1710
1711     SPDesktop *desktop = inkscape_active_desktop();
1712     SPDocument *doc = sp_desktop_document(desktop);
1713     SPObject *marker = doc->getObjectById(b);
1714     return marker;
1715 }
1716
1717
1718 /*
1719   Local Variables:
1720   mode:c++
1721   c-file-style:"stroustrup"
1722   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1723   indent-tabs-mode:nil
1724   fill-column:99
1725   End:
1726 */
1727 // vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :