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.org>
   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 "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 #include "ui/cache/svg_preview_cache.h"
  60
  61 #include "dialogs/stroke-style.h"
  62
  63
  64 /* Paint */
  65
  66 static void sp_stroke_style_paint_construct(SPWidget *spw, SPPaintSelector *psel);
  67 static void sp_stroke_style_paint_selection_modified (SPWidget *spw, Inkscape::Selection *selection, guint flags, SPPaintSelector *psel);
  68 static void sp_stroke_style_paint_selection_changed (SPWidget *spw, Inkscape::Selection *selection, SPPaintSelector *psel);
  69 static void sp_stroke_style_paint_update(SPWidget *spw);
  70
  71 static void sp_stroke_style_paint_mode_changed(SPPaintSelector *psel, SPPaintSelectorMode mode, SPWidget *spw);
  72 static void sp_stroke_style_paint_dragged(SPPaintSelector *psel, SPWidget *spw);
  73 static void sp_stroke_style_paint_changed(SPPaintSelector *psel, SPWidget *spw);
  74
  75 static void sp_stroke_style_widget_change_subselection ( Inkscape::Application *inkscape, SPDesktop *desktop, SPWidget *spw );
  76 static void sp_stroke_style_widget_transientize_callback(Inkscape::Application *inkscape,
  77                                                          SPDesktop *desktop,
  78                                                          SPWidget *spw );
  79
  80 /** Marker selection option menus */
  81 static GtkWidget * marker_start_menu = NULL;
  82 static GtkWidget * marker_mid_menu = NULL;
  83 static GtkWidget * marker_end_menu = NULL;
  84
  85 static SPObject *ink_extract_marker_name(gchar const *n);
  86 static void      ink_markers_menu_update(SPWidget* spw);
  87
  88 static Inkscape::UI::Cache::SvgPreview svg_preview_cache;
  89
  90 /**
  91  * Create the stroke style widget, and hook up all the signals.
  92  */
  93 GtkWidget *
  94 sp_stroke_style_paint_widget_new(void)
  95 {
  96     GtkWidget *spw, *psel;
  97
  98     spw = sp_widget_new_global(INKSCAPE);
  99
 100     psel = sp_paint_selector_new(false); // without fillrule selector
 101     gtk_widget_show(psel);
 102     gtk_container_add(GTK_CONTAINER(spw), psel);
 103     gtk_object_set_data(GTK_OBJECT(spw), "paint-selector", psel);
 104
 105     gtk_signal_connect(GTK_OBJECT(spw), "construct",
 106                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_construct),
 107                        psel);
 108     gtk_signal_connect(GTK_OBJECT(spw), "modify_selection",
 109                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_selection_modified),
 110                        psel);
 111     gtk_signal_connect(GTK_OBJECT(spw), "change_selection",
 112                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_selection_changed),
 113                        psel);
 114
 115     g_signal_connect (INKSCAPE, "change_subselection", G_CALLBACK (sp_stroke_style_widget_change_subselection), spw);
 116
 117     g_signal_connect (G_OBJECT(INKSCAPE), "activate_desktop", G_CALLBACK (sp_stroke_style_widget_transientize_callback), spw );
 118
 119     gtk_signal_connect(GTK_OBJECT(psel), "mode_changed",
 120                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_mode_changed),
 121                        spw);
 122     gtk_signal_connect(GTK_OBJECT(psel), "dragged",
 123                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_dragged),
 124                        spw);
 125     gtk_signal_connect(GTK_OBJECT(psel), "changed",
 126                        GTK_SIGNAL_FUNC(sp_stroke_style_paint_changed),
 127                        spw);
 128
 129     sp_stroke_style_paint_update (SP_WIDGET(spw));
 130     return spw;
 131 }
 132
 133 /**
 134  * On construction, simply does an update of the stroke style paint object.
 135  */
 136 static void
 137 sp_stroke_style_paint_construct(SPWidget *spw, SPPaintSelector */*psel*/)
 138 {
 139 #ifdef SP_SS_VERBOSE
 140     g_print( "Stroke style widget constructed: inkscape %p repr %p\n",
 141              spw->inkscape, spw->repr );
 142 #endif
 143     if (spw->inkscape) {
 144         sp_stroke_style_paint_update (spw);
 145     }
 146 }
 147
 148 /**
 149  * On signal modified, invokes an update of the stroke style paint object.
 150  */
 151 static void
 152 sp_stroke_style_paint_selection_modified( SPWidget *spw,
 153                                           Inkscape::Selection */*selection*/,
 154                                           guint flags,
 155                                           SPPaintSelector */*psel*/ )
 156 {
 157     if (flags & ( SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_PARENT_MODIFIED_FLAG |
 158                   SP_OBJECT_STYLE_MODIFIED_FLAG) ) {
 159         sp_stroke_style_paint_update(spw);
 160     }
 161 }
 162
 163
 164 /**
 165  * On signal selection changed, invokes an update of the stroke style paint object.
 166  */
 167 static void
 168 sp_stroke_style_paint_selection_changed( SPWidget *spw,
 169                                          Inkscape::Selection */*selection*/,
 170                                          SPPaintSelector */*psel*/ )
 171 {
 172     sp_stroke_style_paint_update (spw);
 173 }
 174
 175
 176 /**
 177  * On signal change subselection, invoke an update of the stroke style widget.
 178  */
 179 static void
 180 sp_stroke_style_widget_change_subselection( Inkscape::Application */*inkscape*/,
 181                                             SPDesktop */*desktop*/,
 182                                             SPWidget *spw )
 183 {
 184     sp_stroke_style_paint_update (spw);
 185 }
 186
 187 /**
 188  * Gets the active stroke style property, then sets the appropriate color, alpha, gradient,
 189  * pattern, etc. for the paint-selector.
 190  */
 191 static void
 192 sp_stroke_style_paint_update (SPWidget *spw)
 193 {
 194     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 195         return;
 196     }
 197
 198     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
 199
 200     SPPaintSelector *psel = SP_PAINT_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "paint-selector"));
 201
 202     // create temporary style
 203     SPStyle *query = sp_style_new (SP_ACTIVE_DOCUMENT);
 204     // query into it
 205     int result = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKE);
 206
 207     switch (result) {
 208         case QUERY_STYLE_NOTHING:
 209         {
 210             /* No paint at all */
 211             sp_paint_selector_set_mode (psel, SP_PAINT_SELECTOR_MODE_EMPTY);
 212             break;
 213         }
 214
 215         case QUERY_STYLE_SINGLE:
 216         case QUERY_STYLE_MULTIPLE_AVERAGED: // TODO: treat this slightly differently, e.g. display "averaged" somewhere in paint selector
 217         case QUERY_STYLE_MULTIPLE_SAME:
 218         {
 219             SPPaintSelectorMode pselmode = sp_style_determine_paint_selector_mode (query, false);
 220             sp_paint_selector_set_mode (psel, pselmode);
 221
 222             if (query->stroke.set && query->stroke.isPaintserver()) {
 223
 224                 SPPaintServer *server = SP_STYLE_STROKE_SERVER (query);
 225
 226                 if (SP_IS_LINEARGRADIENT (server)) {
 227                     SPGradient *vector = sp_gradient_get_vector (SP_GRADIENT (server), FALSE);
 228                     sp_paint_selector_set_gradient_linear (psel, vector);
 229
 230                     SPLinearGradient *lg = SP_LINEARGRADIENT (server);
 231                     sp_paint_selector_set_gradient_properties (psel,
 232                                                        SP_GRADIENT_UNITS (lg),
 233                                                        SP_GRADIENT_SPREAD (lg));
 234                 } else if (SP_IS_RADIALGRADIENT (server)) {
 235                     SPGradient *vector = sp_gradient_get_vector (SP_GRADIENT (server), FALSE);
 236                     sp_paint_selector_set_gradient_radial (psel, vector);
 237
 238                     SPRadialGradient *rg = SP_RADIALGRADIENT (server);
 239                     sp_paint_selector_set_gradient_properties (psel,
 240                                                        SP_GRADIENT_UNITS (rg),
 241                                                        SP_GRADIENT_SPREAD (rg));
 242                 } else if (SP_IS_PATTERN (server)) {
 243                     SPPattern *pat = pattern_getroot (SP_PATTERN (server));
 244                     sp_update_pattern_list (psel, pat);
 245                 }
 246             } else if (query->stroke.set && query->stroke.isColor()) {
 247                 sp_paint_selector_set_color_alpha (psel, &query->stroke.value.color, SP_SCALE24_TO_FLOAT (query->stroke_opacity.value));
 248
 249             }
 250             break;
 251         }
 252
 253         case QUERY_STYLE_MULTIPLE_DIFFERENT:
 254         {
 255             sp_paint_selector_set_mode (psel, SP_PAINT_SELECTOR_MODE_MULTIPLE);
 256             break;
 257         }
 258     }
 259
 260     sp_style_unref(query);
 261
 262     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
 263 }
 264
 265 /**
 266  * When the mode is changed, invoke a regular changed handler.
 267  */
 268 static void
 269 sp_stroke_style_paint_mode_changed( SPPaintSelector *psel,
 270                                     SPPaintSelectorMode /*mode*/,
 271                                     SPWidget *spw )
 272 {
 273     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 274         return;
 275     }
 276
 277     /* TODO: Does this work?
 278      * Not really, here we have to get old color back from object
 279      * Instead of relying on paint widget having meaningful colors set
 280      */
 281     sp_stroke_style_paint_changed(psel, spw);
 282 }
 283
 284 static gchar *undo_label_1 = "stroke:flatcolor:1";
 285 static gchar *undo_label_2 = "stroke:flatcolor:2";
 286 static gchar *undo_label = undo_label_1;
 287
 288 /**
 289  * When a drag callback occurs on a paint selector object, if it is a RGB or CMYK
 290  * color mode, then set the stroke opacity to psel's flat color.
 291  */
 292 static void
 293 sp_stroke_style_paint_dragged(SPPaintSelector *psel, SPWidget *spw)
 294 {
 295     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 296         return;
 297     }
 298
 299     switch (psel->mode) {
 300         case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
 301         case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
 302         {
 303             sp_paint_selector_set_flat_color (psel, SP_ACTIVE_DESKTOP, "stroke", "stroke-opacity");
 304             sp_document_maybe_done (sp_desktop_document(SP_ACTIVE_DESKTOP), undo_label, SP_VERB_DIALOG_FILL_STROKE,
 305                                     _("Set stroke color"));
 306             break;
 307         }
 308
 309         default:
 310             g_warning( "file %s: line %d: Paint %d should not emit 'dragged'",
 311                        __FILE__, __LINE__, psel->mode);
 312             break;
 313     }
 314 }
 315
 316 /**
 317  * When the stroke style's paint settings change, this handler updates the
 318  * repr's stroke css style and applies the style to relevant drawing items.
 319  */
 320 static void
 321 sp_stroke_style_paint_changed(SPPaintSelector *psel, SPWidget *spw)
 322 {
 323     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 324         return;
 325     }
 326     g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (TRUE));
 327
 328     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 329     SPDocument *document = sp_desktop_document (desktop);
 330     Inkscape::Selection *selection = sp_desktop_selection (desktop);
 331
 332     GSList const *items = selection->itemList();
 333
 334     switch (psel->mode) {
 335         case SP_PAINT_SELECTOR_MODE_EMPTY:
 336             // This should not happen.
 337             g_warning ( "file %s: line %d: Paint %d should not emit 'changed'",
 338                         __FILE__, __LINE__, psel->mode);
 339             break;
 340         case SP_PAINT_SELECTOR_MODE_MULTIPLE:
 341             // This happens when you switch multiple objects with different gradients to flat color;
 342             // nothing to do here.
 343             break;
 344
 345         case SP_PAINT_SELECTOR_MODE_NONE:
 346         {
 347             SPCSSAttr *css = sp_repr_css_attr_new();
 348             sp_repr_css_set_property(css, "stroke", "none");
 349
 350             sp_desktop_set_style (desktop, css);
 351
 352             sp_repr_css_attr_unref(css);
 353
 354             sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
 355                              _("Remove stroke"));
 356             break;
 357         }
 358
 359         case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
 360         case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
 361         {
 362             sp_paint_selector_set_flat_color (psel, desktop, "stroke", "stroke-opacity");
 363             sp_document_maybe_done (sp_desktop_document(desktop), undo_label, SP_VERB_DIALOG_FILL_STROKE,
 364                                     _("Set stroke color"));
 365
 366             // on release, toggle undo_label so that the next drag will not be lumped with this one
 367             if (undo_label == undo_label_1)
 368                 undo_label = undo_label_2;
 369             else
 370                 undo_label = undo_label_1;
 371
 372             break;
 373         }
 374
 375         case SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR:
 376         case SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL:
 377             if (items) {
 378                 SPGradientType const gradient_type = ( psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR
 379                                                        ? SP_GRADIENT_TYPE_LINEAR
 380                                                        : SP_GRADIENT_TYPE_RADIAL );
 381                 SPGradient *vector = sp_paint_selector_get_gradient_vector(psel);
 382                 if (!vector) {
 383                     /* No vector in paint selector should mean that we just changed mode */
 384
 385                     SPStyle *query = sp_style_new (SP_ACTIVE_DOCUMENT);
 386                     int result = objects_query_fillstroke ((GSList *) items, query, false);
 387                     guint32 common_rgb = 0;
 388                     if (result == QUERY_STYLE_MULTIPLE_SAME) {
 389                         if (!query->fill.isColor()) {
 390                             common_rgb = sp_desktop_get_color(desktop, false);
 391                         } else {
 392                             common_rgb = query->stroke.value.color.toRGBA32( 0xff );
 393                         }
 394                         vector = sp_document_default_gradient_vector(document, common_rgb);
 395                     }
 396                     sp_style_unref(query);
 397
 398                     for (GSList const *i = items; i != NULL; i = i->next) {
 399                         if (!vector) {
 400                             sp_item_set_gradient(SP_ITEM(i->data),
 401                                                  sp_gradient_vector_for_object(document, desktop, SP_OBJECT(i->data), false),
 402                                                  gradient_type, false);
 403                         } else {
 404                             sp_item_set_gradient(SP_ITEM(i->data), vector, gradient_type, false);
 405                         }
 406                     }
 407                 } else {
 408                     vector = sp_gradient_ensure_vector_normalized(vector);
 409                     for (GSList const *i = items; i != NULL; i = i->next) {
 410                         SPGradient *gr = sp_item_set_gradient(SP_ITEM(i->data), vector, gradient_type, false);
 411                         sp_gradient_selector_attrs_to_gradient(gr, psel);
 412                     }
 413                 }
 414
 415                 sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
 416                                  _("Set gradient on stroke"));
 417             }
 418             break;
 419
 420         case SP_PAINT_SELECTOR_MODE_PATTERN:
 421
 422             if (items) {
 423
 424                 SPPattern *pattern = sp_paint_selector_get_pattern (psel);
 425                 if (!pattern) {
 426
 427                     /* No Pattern in paint selector should mean that we just
 428                      * changed mode - dont do jack.
 429                      */
 430
 431                 } else {
 432                     Inkscape::XML::Node *patrepr = SP_OBJECT_REPR(pattern);
 433                     SPCSSAttr *css = sp_repr_css_attr_new ();
 434                     gchar *urltext = g_strdup_printf ("url(#%s)", patrepr->attribute("id"));
 435                     sp_repr_css_set_property (css, "stroke", urltext);
 436
 437                     for (GSList const *i = items; i != NULL; i = i->next) {
 438                          Inkscape::XML::Node *selrepr = SP_OBJECT_REPR (i->data);
 439                          SPObject *selobj = SP_OBJECT (i->data);
 440                          if (!selrepr)
 441                              continue;
 442
 443                          SPStyle *style = SP_OBJECT_STYLE (selobj);
 444                          if (style && style->stroke.isPaintserver()) {
 445                              SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER (selobj);
 446                              if (SP_IS_PATTERN (server) && pattern_getroot (SP_PATTERN(server)) == pattern)
 447                                  // only if this object's pattern is not rooted in our selected pattern, apply
 448                                  continue;
 449                          }
 450
 451                          sp_repr_css_change_recursive (selrepr, css, "style");
 452                      }
 453
 454                     sp_repr_css_attr_unref (css);
 455                     g_free (urltext);
 456
 457                 } // end if
 458
 459                 sp_document_done (document, SP_VERB_DIALOG_FILL_STROKE,
 460                                   _("Set pattern on stroke"));
 461             } // end if
 462
 463             break;
 464
 465         case SP_PAINT_SELECTOR_MODE_UNSET:
 466             if (items) {
 467                     SPCSSAttr *css = sp_repr_css_attr_new ();
 468                     sp_repr_css_unset_property (css, "stroke");
 469                     sp_repr_css_unset_property (css, "stroke-opacity");
 470                     sp_repr_css_unset_property (css, "stroke-width");
 471                     sp_repr_css_unset_property (css, "stroke-miterlimit");
 472                     sp_repr_css_unset_property (css, "stroke-linejoin");
 473                     sp_repr_css_unset_property (css, "stroke-linecap");
 474                     sp_repr_css_unset_property (css, "stroke-dashoffset");
 475                     sp_repr_css_unset_property (css, "stroke-dasharray");
 476
 477                     sp_desktop_set_style (desktop, css);
 478                     sp_repr_css_attr_unref (css);
 479
 480                     sp_document_done (document, SP_VERB_DIALOG_FILL_STROKE,
 481                                       _("Unset stroke"));
 482             }
 483             break;
 484
 485         default:
 486             g_warning( "file %s: line %d: Paint selector should not be in "
 487                        "mode %d",
 488                        __FILE__, __LINE__,
 489                        psel->mode );
 490             break;
 491     }
 492
 493     g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (FALSE));
 494 }
 495
 496
 497
 498
 499
 500 /* Line */
 501
 502 static void sp_stroke_style_line_construct(SPWidget *spw, gpointer data);
 503 static void sp_stroke_style_line_selection_modified (SPWidget *spw,
 504                                                   Inkscape::Selection *selection,
 505                                                   guint flags,
 506                                                   gpointer data);
 507
 508 static void sp_stroke_style_line_selection_changed (SPWidget *spw,
 509                                                    Inkscape::Selection *selection,
 510                                                    gpointer data );
 511
 512 static void sp_stroke_style_line_update(SPWidget *spw, Inkscape::Selection *sel);
 513
 514 static void sp_stroke_style_set_join_buttons(SPWidget *spw,
 515                                              GtkWidget *active);
 516
 517 static void sp_stroke_style_set_cap_buttons(SPWidget *spw,
 518                                             GtkWidget *active);
 519
 520 static void sp_stroke_style_width_changed(GtkAdjustment *adj, SPWidget *spw);
 521 static void sp_stroke_style_miterlimit_changed(GtkAdjustment *adj, SPWidget *spw);
 522 static void sp_stroke_style_any_toggled(GtkToggleButton *tb, SPWidget *spw);
 523 static void sp_stroke_style_line_dash_changed(SPDashSelector *dsel,
 524                                               SPWidget *spw);
 525
 526 static void sp_stroke_style_update_marker_menus(SPWidget *spw, GSList const *objects);
 527
 528
 529 /**
 530  * Helper function for creating radio buttons.  This should probably be re-thought out
 531  * when reimplementing this with Gtkmm.
 532  */
 533 static GtkWidget *
 534 sp_stroke_radio_button(GtkWidget *tb, char const *icon,
 535                        GtkWidget *hb, GtkWidget *spw,
 536                        gchar const *key, gchar const *data)
 537 {
 538     g_assert(icon != NULL);
 539     g_assert(hb  != NULL);
 540     g_assert(spw != NULL);
 541
 542     if (tb == NULL) {
 543         tb = gtk_radio_button_new(NULL);
 544     } else {
 545         tb = gtk_radio_button_new(gtk_radio_button_group(GTK_RADIO_BUTTON(tb)) );
 546     }
 547
 548     gtk_widget_show(tb);
 549     gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(tb), FALSE);
 550     gtk_box_pack_start(GTK_BOX(hb), tb, FALSE, FALSE, 0);
 551     gtk_object_set_data(GTK_OBJECT(spw), icon, tb);
 552     gtk_object_set_data(GTK_OBJECT(tb), key, (gpointer*)data);
 553     gtk_signal_connect(GTK_OBJECT(tb), "toggled",
 554                        GTK_SIGNAL_FUNC(sp_stroke_style_any_toggled),
 555                        spw);
 556     GtkWidget *px = sp_icon_new(Inkscape::ICON_SIZE_LARGE_TOOLBAR, icon);
 557     g_assert(px != NULL);
 558     gtk_widget_show(px);
 559     gtk_container_add(GTK_CONTAINER(tb), px);
 560
 561     return tb;
 562
 563 }
 564
 565 static void
 566 sp_stroke_style_widget_transientize_callback(Inkscape::Application */*inkscape*/,
 567                                              SPDesktop */*desktop*/,
 568                                              SPWidget */*spw*/ )
 569 {
 570 // TODO:  Either of these will cause crashes sometimes
 571 //    sp_stroke_style_line_update( SP_WIDGET(spw), desktop ? sp_desktop_selection(desktop) : NULL);
 572 //    ink_markers_menu_update(spw);
 573 }
 574
 575 /**
 576  * Creates a copy of the marker named mname, determines its visible and renderable
 577  * area in menu_id's bounding box, and then renders it.  This allows us to fill in
 578  * preview images of each marker in the marker menu.
 579  */
 580 static GtkWidget *
 581 sp_marker_prev_new(unsigned psize, gchar const *mname,
 582                    SPDocument *source, SPDocument *sandbox,
 583                    gchar *menu_id, NRArena const */*arena*/, unsigned /*visionkey*/, NRArenaItem *root)
 584 {
 585     // Retrieve the marker named 'mname' from the source SVG document
 586     SPObject const *marker = source->getObjectById(mname);
 587     if (marker == NULL)
 588         return NULL;
 589
 590     // Create a copy repr of the marker with id="sample"
 591     Inkscape::XML::Document *xml_doc = sp_document_repr_doc(sandbox);
 592     Inkscape::XML::Node *mrepr = SP_OBJECT_REPR (marker)->duplicate(xml_doc);
 593     mrepr->setAttribute("id", "sample");
 594
 595     // Replace the old sample in the sandbox by the new one
 596     Inkscape::XML::Node *defsrepr = SP_OBJECT_REPR (sandbox->getObjectById("defs"));
 597     SPObject *oldmarker = sandbox->getObjectById("sample");
 598     if (oldmarker)
 599         oldmarker->deleteObject(false);
 600     defsrepr->appendChild(mrepr);
 601     Inkscape::GC::release(mrepr);
 602
 603 // Uncomment this to get the sandbox documents saved (useful for debugging)
 604     //FILE *fp = fopen (g_strconcat(mname, ".svg", NULL), "w");
 605     //sp_repr_save_stream (sp_document_repr_doc (sandbox), fp);
 606     //fclose (fp);
 607
 608     // object to render; note that the id is the same as that of the menu we're building
 609     SPObject *object = sandbox->getObjectById(menu_id);
 610     sp_document_root (sandbox)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
 611     sp_document_ensure_up_to_date(sandbox);
 612
 613     if (object == NULL || !SP_IS_ITEM(object))
 614         return NULL; // sandbox broken?
 615
 616     // Find object's bbox in document
 617     NR::Matrix const i2doc(sp_item_i2doc_affine(SP_ITEM(object)));
 618     NR::Maybe<NR::Rect> dbox = SP_ITEM(object)->getBounds(i2doc);
 619
 620     if (!dbox) {
 621         return NULL;
 622     }
 623
 624     /* Update to renderable state */
 625     double sf = 0.8;
 626     GdkPixbuf* pixbuf = NULL;
 627
 628     Glib::ustring key = svg_preview_cache.cache_key(source->uri, mname, psize);
 629     pixbuf = svg_preview_cache.get_preview_from_cache(key);
 630
 631     if (pixbuf == NULL) {
 632         pixbuf = render_pixbuf(root, sf, *dbox, psize);
 633         svg_preview_cache.set_preview_in_cache(key, pixbuf);
 634     }
 635
 636     // Create widget
 637     GtkWidget *pb = gtk_image_new_from_pixbuf(pixbuf);
 638
 639     return pb;
 640 }
 641
 642
 643 /**
 644  *  Returns a list of markers in the defs of the given source document as a GSList object
 645  *  Returns NULL if there are no markers in the document.
 646  */
 647 GSList *
 648 ink_marker_list_get (SPDocument *source)
 649 {
 650     if (source == NULL)
 651         return NULL;
 652
 653     GSList *ml   = NULL;
 654     SPDefs *defs = (SPDefs *) SP_DOCUMENT_DEFS (source);
 655     for ( SPObject *child = sp_object_first_child(SP_OBJECT(defs));
 656           child != NULL;
 657           child = SP_OBJECT_NEXT (child) )
 658     {
 659         if (SP_IS_MARKER(child)) {
 660             ml = g_slist_prepend (ml, child);
 661         }
 662     }
 663     return ml;
 664 }
 665
 666 #define MARKER_ITEM_MARGIN 0
 667
 668 /**
 669  * Adds previews of markers in marker_list to the given menu widget
 670  */
 671 static void
 672 sp_marker_menu_build (GtkWidget *m, GSList *marker_list, SPDocument *source, SPDocument *sandbox, gchar *menu_id)
 673 {
 674     // Do this here, outside of loop, to speed up preview generation:
 675     NRArena const *arena = NRArena::create();
 676     unsigned const visionkey = sp_item_display_key_new(1);
 677     NRArenaItem *root =  sp_item_invoke_show( SP_ITEM(SP_DOCUMENT_ROOT (sandbox)), (NRArena *) arena, visionkey, SP_ITEM_SHOW_DISPLAY );
 678
 679     for (; marker_list != NULL; marker_list = marker_list->next) {
 680         Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) marker_list->data);
 681         GtkWidget *i = gtk_menu_item_new();
 682         gtk_widget_show(i);
 683
 684         if (repr->attribute("inkscape:stockid"))
 685             g_object_set_data (G_OBJECT(i), "stockid", (void *) "true");
 686         else
 687             g_object_set_data (G_OBJECT(i), "stockid", (void *) "false");
 688
 689         gchar const *markid = repr->attribute("id");
 690         g_object_set_data (G_OBJECT(i), "marker", (void *) markid);
 691
 692         GtkWidget *hb = gtk_hbox_new(FALSE, MARKER_ITEM_MARGIN);
 693         gtk_widget_show(hb);
 694
 695         // generate preview
 696
 697         GtkWidget *prv = sp_marker_prev_new (22, markid, source, sandbox, menu_id, arena, visionkey, root);
 698         gtk_widget_show(prv);
 699         gtk_box_pack_start(GTK_BOX(hb), prv, FALSE, FALSE, 6);
 700
 701         // create label
 702         GtkWidget *l = gtk_label_new(repr->attribute("id"));
 703         gtk_widget_show(l);
 704         gtk_misc_set_alignment(GTK_MISC(l), 0.0, 0.5);
 705
 706         gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
 707
 708         gtk_widget_show(hb);
 709         gtk_container_add(GTK_CONTAINER(i), hb);
 710
 711         gtk_menu_append(GTK_MENU(m), i);
 712     }
 713 }
 714
 715 /**
 716  * sp_marker_list_from_doc()
 717  *
 718  * \brief Pick up all markers from source, except those that are in
 719  * current_doc (if non-NULL), and add items to the m menu
 720  *
 721  */
 722 static void
 723 sp_marker_list_from_doc (GtkWidget *m, SPDocument */*current_doc*/, SPDocument *source, SPDocument */*markers_doc*/, SPDocument *sandbox, gchar *menu_id)
 724 {
 725     GSList *ml = ink_marker_list_get(source);
 726     GSList *clean_ml = NULL;
 727
 728     for (; ml != NULL; ml = ml->next) {
 729         if (!SP_IS_MARKER(ml->data))
 730             continue;
 731
 732         // Add to the list of markers we really do wish to show
 733         clean_ml = g_slist_prepend (clean_ml, ml->data);
 734     }
 735     sp_marker_menu_build (m, clean_ml, source, sandbox, menu_id);
 736
 737     g_slist_free (ml);
 738     g_slist_free (clean_ml);
 739 }
 740
 741
 742 /**
 743  * Returns a new document containing default start, mid, and end markers.
 744  */
 745 SPDocument *
 746 ink_markers_preview_doc ()
 747 {
 748 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\">"
 749 "  <defs id=\"defs\" />"
 750
 751 "  <g id=\"marker-start\">"
 752 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:url(#sample);marker-mid:none;marker-end:none\""
 753 "       d=\"M 12.5,13 L 25,13\" id=\"path1\" />"
 754 "    <rect style=\"fill:none;stroke:none\" id=\"rect2\""
 755 "       width=\"25\" height=\"25\" x=\"0\" y=\"0\" />"
 756 "  </g>"
 757
 758 "  <g id=\"marker-mid\">"
 759 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:url(#sample);marker-end:none\""
 760 "       d=\"M 0,113 L 12.5,113 L 25,113\" id=\"path11\" />"
 761 "    <rect style=\"fill:none;stroke:none\" id=\"rect22\""
 762 "       width=\"25\" height=\"25\" x=\"0\" y=\"100\" />"
 763 "  </g>"
 764
 765 "  <g id=\"marker-end\">"
 766 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:none;marker-end:url(#sample)\""
 767 "       d=\"M 0,213 L 12.5,213\" id=\"path111\" />"
 768 "    <rect style=\"fill:none;stroke:none\" id=\"rect222\""
 769 "       width=\"25\" height=\"25\" x=\"0\" y=\"200\" />"
 770 "  </g>"
 771
 772 "</svg>";
 773
 774     return sp_document_new_from_mem (buffer, strlen(buffer), FALSE);
 775 }
 776
 777 static void
 778 ink_marker_menu_create_menu(GtkWidget *m, gchar *menu_id, SPDocument *doc, SPDocument *sandbox)
 779 {
 780     static SPDocument *markers_doc = NULL;
 781
 782     // add "None"
 783     GtkWidget *i = gtk_menu_item_new();
 784     gtk_widget_show(i);
 785
 786     g_object_set_data(G_OBJECT(i), "marker", (void *) "none");
 787
 788     GtkWidget *hb = gtk_hbox_new(FALSE,  MARKER_ITEM_MARGIN);
 789     gtk_widget_show(hb);
 790
 791     GtkWidget *l = gtk_label_new( _("None") );
 792     gtk_widget_show(l);
 793     gtk_misc_set_alignment(GTK_MISC(l), 0.0, 0.5);
 794
 795     gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
 796
 797     gtk_widget_show(hb);
 798     gtk_container_add(GTK_CONTAINER(i), hb);
 799     gtk_menu_append(GTK_MENU(m), i);
 800
 801     // find and load  markers.svg
 802     if (markers_doc == NULL) {
 803         char *markers_source = g_build_filename(INKSCAPE_MARKERSDIR, "markers.svg", NULL);
 804         if (Inkscape::IO::file_test(markers_source, G_FILE_TEST_IS_REGULAR)) {
 805             markers_doc = sp_document_new(markers_source, FALSE);
 806         }
 807         g_free(markers_source);
 808     }
 809
 810     // suck in from current doc
 811     sp_marker_list_from_doc ( m, NULL, doc, markers_doc, sandbox, menu_id );
 812
 813     // add separator
 814     {
 815         GtkWidget *i = gtk_separator_menu_item_new();
 816         gtk_widget_show(i);
 817         gtk_menu_append(GTK_MENU(m), i);
 818     }
 819
 820     // suck in from markers.svg
 821     if (markers_doc) {
 822         sp_document_ensure_up_to_date(doc);
 823         sp_marker_list_from_doc ( m, doc, markers_doc, NULL, sandbox, menu_id );
 824     }
 825
 826 }
 827
 828
 829 /**
 830  * Creates a menu widget to display markers from markers.svg
 831  */
 832 static GtkWidget *
 833 ink_marker_menu( GtkWidget */*tbl*/, gchar *menu_id, SPDocument *sandbox)
 834 {
 835     SPDesktop *desktop = inkscape_active_desktop();
 836     SPDocument *doc = sp_desktop_document(desktop);
 837     GtkWidget *mnu = gtk_option_menu_new();
 838
 839     /* Create new menu widget */
 840     GtkWidget *m = gtk_menu_new();
 841     gtk_widget_show(m);
 842
 843     g_object_set_data(G_OBJECT(mnu), "updating", (gpointer) FALSE);
 844
 845     if (!doc) {
 846         GtkWidget *i = gtk_menu_item_new_with_label(_("No document selected"));
 847         gtk_widget_show(i);
 848         gtk_menu_append(GTK_MENU(m), i);
 849         gtk_widget_set_sensitive(mnu, FALSE);
 850
 851     } else {
 852         ink_marker_menu_create_menu(m, menu_id, doc, sandbox);
 853
 854         gtk_widget_set_sensitive(mnu, TRUE);
 855     }
 856
 857     gtk_object_set_data(GTK_OBJECT(mnu), "menu_id", menu_id);
 858     gtk_option_menu_set_menu(GTK_OPTION_MENU(mnu), m);
 859
 860     /* Set history */
 861     gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
 862
 863     return mnu;
 864 }
 865
 866
 867 /**
 868  * Handles when user selects one of the markers from the marker menu.
 869  * Defines a uri string to refer to it, then applies it to all selected
 870  * items in the current desktop.
 871  */
 872 static void
 873 sp_marker_select(GtkOptionMenu *mnu, GtkWidget *spw)
 874 {
 875     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 876         return;
 877     }
 878
 879     SPDesktop *desktop = inkscape_active_desktop();
 880     SPDocument *document = sp_desktop_document(desktop);
 881     if (!document) {
 882         return;
 883     }
 884
 885     /* Get Marker */
 886     if (!g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 887                            "marker"))
 888     {
 889         return;
 890     }
 891     gchar *markid = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 892                                                 "marker");
 893     gchar *marker = "";
 894     if (strcmp(markid, "none")){
 895        gchar *stockid = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 896                                                 "stockid");
 897
 898        gchar *markurn = markid;
 899        if (!strcmp(stockid,"true")) markurn = g_strconcat("urn:inkscape:marker:",markid,NULL);
 900        SPObject *mark = get_stock_item(markurn);
 901        if (mark) {
 902             Inkscape::XML::Node *repr = SP_OBJECT_REPR(mark);
 903             marker = g_strconcat("url(#", repr->attribute("id"), ")", NULL);
 904         }
 905     } else {
 906         marker = markid;
 907     }
 908
 909     SPCSSAttr *css = sp_repr_css_attr_new();
 910     gchar *menu_id = (gchar *) g_object_get_data(G_OBJECT(mnu), "menu_id");
 911     sp_repr_css_set_property(css, menu_id, marker);
 912
 913     // Also update the marker dropdown menus, so the document's markers
 914     // show up at the top of the menu
 915 //    sp_stroke_style_line_update( SP_WIDGET(spw), desktop ? sp_desktop_selection(desktop) : NULL);
 916     ink_markers_menu_update(SP_WIDGET(spw));
 917
 918     Inkscape::Selection *selection = sp_desktop_selection(desktop);
 919     GSList const *items = selection->itemList();
 920     for (; items != NULL; items = items->next) {
 921          SPItem *item = (SPItem *) items->data;
 922          if (!SP_IS_SHAPE(item) || SP_IS_RECT(item)) // can't set marker to rect, until it's converted to using <path>
 923              continue;
 924          Inkscape::XML::Node *selrepr = SP_OBJECT_REPR((SPItem *) items->data);
 925          if (selrepr) {
 926              sp_repr_css_change_recursive(selrepr, css, "style");
 927          }
 928          SP_OBJECT(items->data)->requestModified(SP_OBJECT_MODIFIED_FLAG);
 929          SP_OBJECT(items->data)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
 930      }
 931
 932     sp_repr_css_attr_unref(css);
 933
 934     sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
 935                      _("Set markers"));
 936
 937 };
 938
 939 static int
 940 ink_marker_menu_get_pos(GtkMenu* mnu, gchar* markname) {
 941
 942     if (markname == NULL)
 943         markname = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(mnu)), "marker");
 944
 945     if (markname == NULL)
 946         return 0;
 947
 948     GList *kids = GTK_MENU_SHELL(mnu)->children;
 949     int i = 0;
 950     for (; kids != NULL; kids = kids->next) {
 951         gchar *mark = (gchar *) g_object_get_data(G_OBJECT(kids->data), "marker");
 952         if ( mark && strcmp(mark, markname) == 0 ) {
 953             break;
 954         }
 955         i++;
 956     }
 957     return i;
 958 }
 959
 960 static void
 961 ink_markers_menu_update(SPWidget* spw) {
 962     SPDesktop  *desktop = inkscape_active_desktop();
 963     SPDocument *document = sp_desktop_document(desktop);
 964     SPDocument *sandbox = ink_markers_preview_doc ();
 965     GtkWidget  *m;
 966     int        pos;
 967
 968     gtk_signal_handler_block_by_func( GTK_OBJECT(marker_start_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 969     pos = ink_marker_menu_get_pos(GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(marker_start_menu))), NULL);
 970     m = gtk_menu_new();
 971     gtk_widget_show(m);
 972     ink_marker_menu_create_menu(m, "marker-start", document, sandbox);
 973     gtk_option_menu_remove_menu(GTK_OPTION_MENU(marker_start_menu));
 974     gtk_option_menu_set_menu(GTK_OPTION_MENU(marker_start_menu), m);
 975     gtk_option_menu_set_history(GTK_OPTION_MENU(marker_start_menu), pos);
 976     gtk_signal_handler_unblock_by_func( GTK_OBJECT(marker_start_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 977
 978     gtk_signal_handler_block_by_func( GTK_OBJECT(marker_mid_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 979     pos = ink_marker_menu_get_pos(GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(marker_mid_menu))), NULL);
 980     m = gtk_menu_new();
 981     gtk_widget_show(m);
 982     ink_marker_menu_create_menu(m, "marker-mid", document, sandbox);
 983     gtk_option_menu_remove_menu(GTK_OPTION_MENU(marker_mid_menu));
 984     gtk_option_menu_set_menu(GTK_OPTION_MENU(marker_mid_menu), m);
 985     gtk_option_menu_set_history(GTK_OPTION_MENU(marker_mid_menu), pos);
 986     gtk_signal_handler_unblock_by_func( GTK_OBJECT(marker_mid_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 987
 988     gtk_signal_handler_block_by_func( GTK_OBJECT(marker_end_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 989     pos = ink_marker_menu_get_pos(GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(marker_end_menu))), NULL);
 990     m = gtk_menu_new();
 991     gtk_widget_show(m);
 992     ink_marker_menu_create_menu(m, "marker-end", document, sandbox);
 993     gtk_option_menu_remove_menu(GTK_OPTION_MENU(marker_end_menu));
 994     gtk_option_menu_set_menu(GTK_OPTION_MENU(marker_end_menu), m);
 995     gtk_option_menu_set_history(GTK_OPTION_MENU(marker_end_menu), pos);
 996     gtk_signal_handler_unblock_by_func( GTK_OBJECT(marker_end_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 997 }
 998
 999 /**
1000  * Sets the stroke width units for all selected items.
1001  * Also handles absolute and dimensionless units.
1002  */
1003 static gboolean stroke_width_set_unit(SPUnitSelector *,
1004                                                  SPUnit const *old,
1005                                                  SPUnit const *new_units,
1006                                                  GObject *spw)
1007 {
1008     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1009
1010     if (!desktop) {
1011         return FALSE;
1012     }
1013
1014     Inkscape::Selection *selection = sp_desktop_selection (desktop);
1015
1016     if (selection->isEmpty())
1017         return FALSE;
1018
1019     GSList const *objects = selection->itemList();
1020
1021     if ((old->base == SP_UNIT_ABSOLUTE || old->base == SP_UNIT_DEVICE) &&
1022        (new_units->base == SP_UNIT_DIMENSIONLESS)) {
1023
1024         /* Absolute to percentage */
1025         g_object_set_data (spw, "update", GUINT_TO_POINTER (TRUE));
1026
1027         GtkAdjustment *a = GTK_ADJUSTMENT(g_object_get_data (spw, "width"));
1028         float w = sp_units_get_pixels (a->value, *old);
1029
1030         gdouble average = stroke_average_width (objects);
1031
1032         if (average == NR_HUGE || average == 0)
1033             return FALSE;
1034
1035         gtk_adjustment_set_value (a, 100.0 * w / average);
1036
1037         g_object_set_data (spw, "update", GUINT_TO_POINTER (FALSE));
1038         return TRUE;
1039
1040     } else if ((old->base == SP_UNIT_DIMENSIONLESS) &&
1041               (new_units->base == SP_UNIT_ABSOLUTE || new_units->base == SP_UNIT_DEVICE)) {
1042
1043         /* Percentage to absolute */
1044         g_object_set_data (spw, "update", GUINT_TO_POINTER (TRUE));
1045
1046         GtkAdjustment *a = GTK_ADJUSTMENT(g_object_get_data (spw, "width"));
1047
1048         gdouble average = stroke_average_width (objects);
1049
1050         gtk_adjustment_set_value (a, sp_pixels_get_units (0.01 * a->value * average, *new_units));
1051
1052         g_object_set_data (spw, "update", GUINT_TO_POINTER (FALSE));
1053         return TRUE;
1054     }
1055
1056     return FALSE;
1057 }
1058
1059
1060 /**
1061  * \brief  Creates a new widget for the line stroke style.
1062  *
1063  */
1064 GtkWidget *
1065 sp_stroke_style_line_widget_new(void)
1066 {
1067     GtkWidget *spw, *f, *t, *hb, *sb, *us, *tb, *ds;
1068     GtkObject *a;
1069
1070     GtkTooltips *tt = gtk_tooltips_new();
1071
1072     spw = sp_widget_new_global(INKSCAPE);
1073
1074     f = gtk_hbox_new (FALSE, 0);
1075     gtk_widget_show(f);
1076     gtk_container_add(GTK_CONTAINER(spw), f);
1077
1078     t = gtk_table_new(3, 6, FALSE);
1079     gtk_widget_show(t);
1080     gtk_container_set_border_width(GTK_CONTAINER(t), 4);
1081     gtk_table_set_row_spacings(GTK_TABLE(t), 4);
1082     gtk_container_add(GTK_CONTAINER(f), t);
1083     gtk_object_set_data(GTK_OBJECT(spw), "stroke", t);
1084
1085     gint i = 0;
1086
1087     /* Stroke width */
1088     spw_label(t, _("Width:"), 0, i);
1089
1090     hb = spw_hbox(t, 3, 1, i);
1091
1092 // TODO: when this is gtkmmified, use an Inkscape::UI::Widget::ScalarUnit instead of the separate
1093 // spinbutton and unit selector for stroke width. In sp_stroke_style_line_update, use
1094 // setHundredPercent to remember the aeraged width corresponding to 100%. Then the
1095 // stroke_width_set_unit will be removed (because ScalarUnit takes care of conversions itself), and
1096 // with it, the two remaining calls of stroke_average_width, allowing us to get rid of that
1097 // function in desktop-style.
1098
1099     a = gtk_adjustment_new(1.0, 0.0, 1000.0, 0.1, 10.0, 10.0);
1100     gtk_object_set_data(GTK_OBJECT(spw), "width", a);
1101     sb = gtk_spin_button_new(GTK_ADJUSTMENT(a), 0.1, 3);
1102     gtk_tooltips_set_tip(tt, sb, _("Stroke width"), NULL);
1103     gtk_widget_show(sb);
1104
1105     sp_dialog_defocus_on_enter(sb);
1106
1107     gtk_box_pack_start(GTK_BOX(hb), sb, FALSE, FALSE, 0);
1108     us = sp_unit_selector_new(SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE);
1109     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1110     if (desktop)
1111         sp_unit_selector_set_unit (SP_UNIT_SELECTOR(us), sp_desktop_namedview(desktop)->doc_units);
1112     sp_unit_selector_add_unit(SP_UNIT_SELECTOR(us), &sp_unit_get_by_id(SP_UNIT_PERCENT), 0);
1113     g_signal_connect ( G_OBJECT (us), "set_unit", G_CALLBACK (stroke_width_set_unit), spw );
1114     gtk_widget_show(us);
1115     sp_unit_selector_add_adjustment( SP_UNIT_SELECTOR(us), GTK_ADJUSTMENT(a) );
1116     gtk_box_pack_start(GTK_BOX(hb), us, FALSE, FALSE, 0);
1117     gtk_object_set_data(GTK_OBJECT(spw), "units", us);
1118
1119     gtk_signal_connect( GTK_OBJECT(a), "value_changed", GTK_SIGNAL_FUNC(sp_stroke_style_width_changed), spw );
1120     i++;
1121
1122     /* Join type */
1123     // TRANSLATORS: The line join style specifies the shape to be used at the
1124     //  corners of paths. It can be "miter", "round" or "bevel".
1125     spw_label(t, _("Join:"), 0, i);
1126
1127     hb = spw_hbox(t, 3, 1, i);
1128
1129     tb = NULL;
1130
1131     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_MITER,
1132                                 hb, spw, "join", "miter");
1133
1134     // TRANSLATORS: Miter join: joining lines with a sharp (pointed) corner.
1135     //  For an example, draw a triangle with a large stroke width and modify the
1136     //  "Join" option (in the Fill and Stroke dialog).
1137     gtk_tooltips_set_tip(tt, tb, _("Miter join"), NULL);
1138
1139     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_ROUND,
1140                                 hb, spw, "join", "round");
1141
1142     // TRANSLATORS: Round join: joining lines with a rounded corner.
1143     //  For an example, draw a triangle with a large stroke width and modify the
1144     //  "Join" option (in the Fill and Stroke dialog).
1145     gtk_tooltips_set_tip(tt, tb, _("Round join"), NULL);
1146
1147     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_BEVEL,
1148                                 hb, spw, "join", "bevel");
1149
1150     // TRANSLATORS: Bevel join: joining lines with a blunted (flattened) corner.
1151     //  For an example, draw a triangle with a large stroke width and modify the
1152     //  "Join" option (in the Fill and Stroke dialog).
1153     gtk_tooltips_set_tip(tt, tb, _("Bevel join"), NULL);
1154
1155     i++;
1156
1157     /* Miterlimit  */
1158     // TRANSLATORS: Miter limit: only for "miter join", this limits the length
1159     //  of the sharp "spike" when the lines connect at too sharp an angle.
1160     // When two line segments meet at a sharp angle, a miter join results in a
1161     //  spike that extends well beyond the connection point. The purpose of the
1162     //  miter limit is to cut off such spikes (i.e. convert them into bevels)
1163     //  when they become too long.
1164     spw_label(t, _("Miter limit:"), 0, i);
1165
1166     hb = spw_hbox(t, 3, 1, i);
1167
1168     a = gtk_adjustment_new(4.0, 0.0, 100.0, 0.1, 10.0, 10.0);
1169     gtk_object_set_data(GTK_OBJECT(spw), "miterlimit", a);
1170
1171     sb = gtk_spin_button_new(GTK_ADJUSTMENT(a), 0.1, 2);
1172     gtk_tooltips_set_tip(tt, sb, _("Maximum length of the miter (in units of stroke width)"), NULL);
1173     gtk_widget_show(sb);
1174     gtk_object_set_data(GTK_OBJECT(spw), "miterlimit_sb", sb);
1175     sp_dialog_defocus_on_enter(sb);
1176
1177     gtk_box_pack_start(GTK_BOX(hb), sb, FALSE, FALSE, 0);
1178
1179     gtk_signal_connect( GTK_OBJECT(a), "value_changed",
1180                         GTK_SIGNAL_FUNC(sp_stroke_style_miterlimit_changed), spw );
1181     i++;
1182
1183     /* Cap type */
1184     // TRANSLATORS: cap type specifies the shape for the ends of lines
1185     spw_label(t, _("Cap:"), 0, i);
1186
1187     hb = spw_hbox(t, 3, 1, i);
1188
1189     tb = NULL;
1190
1191     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_BUTT,
1192                                 hb, spw, "cap", "butt");
1193
1194     // TRANSLATORS: Butt cap: the line shape does not extend beyond the end point
1195     //  of the line; the ends of the line are square
1196     gtk_tooltips_set_tip(tt, tb, _("Butt cap"), NULL);
1197
1198     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_ROUND,
1199                                 hb, spw, "cap", "round");
1200
1201     // TRANSLATORS: Round cap: the line shape extends beyond the end point of the
1202     //  line; the ends of the line are rounded
1203     gtk_tooltips_set_tip(tt, tb, _("Round cap"), NULL);
1204
1205     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_SQUARE,
1206                                 hb, spw, "cap", "square");
1207
1208     // TRANSLATORS: Square cap: the line shape extends beyond the end point of the
1209     //  line; the ends of the line are square
1210     gtk_tooltips_set_tip(tt, tb, _("Square cap"), NULL);
1211
1212     i++;
1213
1214
1215     /* Dash */
1216     spw_label(t, _("Dashes:"), 0, i);
1217     ds = sp_dash_selector_new( inkscape_get_repr( INKSCAPE,
1218                                                   "palette.dashes") );
1219
1220     gtk_widget_show(ds);
1221     gtk_table_attach( GTK_TABLE(t), ds, 1, 4, i, i+1,
1222                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1223                       (GtkAttachOptions)0, 0, 0 );
1224     gtk_object_set_data(GTK_OBJECT(spw), "dash", ds);
1225     gtk_signal_connect( GTK_OBJECT(ds), "changed",
1226                         GTK_SIGNAL_FUNC(sp_stroke_style_line_dash_changed),
1227                         spw );
1228     i++;
1229
1230     /* Drop down marker selectors*/
1231
1232     // doing this here once, instead of for each preview, to speed things up
1233     SPDocument *sandbox = ink_markers_preview_doc ();
1234
1235     // TRANSLATORS: Path markers are an SVG feature that allows you to attach arbitrary shapes
1236     // (arrowheads, bullets, faces, whatever) to the start, end, or middle nodes of a path.
1237     spw_label(t, _("Start Markers:"), 0, i);
1238     marker_start_menu  = ink_marker_menu( spw ,"marker-start", sandbox);
1239     gtk_signal_connect( GTK_OBJECT(marker_start_menu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1240     gtk_widget_show(marker_start_menu);
1241     gtk_table_attach( GTK_TABLE(t), marker_start_menu, 1, 4, i, i+1,
1242                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1243                       (GtkAttachOptions)0, 0, 0 );
1244     gtk_object_set_data(GTK_OBJECT(spw), "start_mark_menu", marker_start_menu);
1245
1246     i++;
1247     spw_label(t, _("Mid Markers:"), 0, i);
1248     marker_mid_menu = ink_marker_menu( spw ,"marker-mid", sandbox);
1249     gtk_signal_connect( GTK_OBJECT(marker_mid_menu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1250     gtk_widget_show(marker_mid_menu);
1251     gtk_table_attach( GTK_TABLE(t), marker_mid_menu, 1, 4, i, i+1,
1252                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1253                       (GtkAttachOptions)0, 0, 0 );
1254     gtk_object_set_data(GTK_OBJECT(spw), "mid_mark_menu", marker_mid_menu);
1255
1256     i++;
1257     spw_label(t, _("End Markers:"), 0, i);
1258     marker_end_menu = ink_marker_menu( spw ,"marker-end", sandbox);
1259     gtk_signal_connect( GTK_OBJECT(marker_end_menu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1260     gtk_widget_show(marker_end_menu);
1261     gtk_table_attach( GTK_TABLE(t), marker_end_menu, 1, 4, i, i+1,
1262                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1263                       (GtkAttachOptions)0, 0, 0 );
1264     gtk_object_set_data(GTK_OBJECT(spw), "end_mark_menu", marker_end_menu);
1265
1266     i++;
1267
1268     gtk_signal_connect( GTK_OBJECT(spw), "construct",
1269                         GTK_SIGNAL_FUNC(sp_stroke_style_line_construct),
1270                         NULL );
1271     gtk_signal_connect( GTK_OBJECT(spw), "modify_selection",
1272                         GTK_SIGNAL_FUNC(sp_stroke_style_line_selection_modified),
1273                         NULL );
1274     gtk_signal_connect( GTK_OBJECT(spw), "change_selection",
1275                         GTK_SIGNAL_FUNC(sp_stroke_style_line_selection_changed),
1276                         NULL );
1277
1278     sp_stroke_style_line_update( SP_WIDGET(spw), desktop ? sp_desktop_selection(desktop) : NULL);
1279
1280     return spw;
1281 }
1282
1283
1284 /**
1285  * Callback for when the stroke style widget is called.  It causes
1286  * the stroke line style to be updated.
1287  */
1288 static void
1289 sp_stroke_style_line_construct(SPWidget *spw, gpointer /*data*/)
1290 {
1291 #ifdef SP_SS_VERBOSE
1292     g_print( "Stroke style widget constructed: inkscape %p repr %p\n",
1293              spw->inkscape, spw->repr );
1294 #endif
1295     if (spw->inkscape) {
1296         sp_stroke_style_line_update(spw,
1297                                     ( SP_ACTIVE_DESKTOP
1298                                       ? sp_desktop_selection(SP_ACTIVE_DESKTOP)
1299                                       : NULL ));
1300     }
1301 }
1302
1303 /**
1304  * Callback for when stroke style widget is modified.
1305  * Triggers update action.
1306  */
1307 static void
1308 sp_stroke_style_line_selection_modified( SPWidget *spw,
1309                                          Inkscape::Selection *selection,
1310                                          guint flags,
1311                                          gpointer /*data*/ )
1312 {
1313     if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_PARENT_MODIFIED_FLAG)) {
1314         sp_stroke_style_line_update (spw, selection);
1315     }
1316
1317 }
1318
1319 /**
1320  * Callback for when stroke style widget is changed.
1321  * Triggers update action.
1322  */
1323 static void
1324 sp_stroke_style_line_selection_changed( SPWidget *spw,
1325                                         Inkscape::Selection *selection,
1326                                         gpointer /*data*/ )
1327 {
1328     sp_stroke_style_line_update (spw, selection);
1329 }
1330
1331
1332 /**
1333  * Sets selector widgets' dash style from an SPStyle object.
1334  */
1335 static void
1336 sp_dash_selector_set_from_style (GtkWidget *dsel, SPStyle *style)
1337 {
1338     if (style->stroke_dash.n_dash > 0) {
1339         double d[64];
1340         int len = MIN(style->stroke_dash.n_dash, 64);
1341         for (int i = 0; i < len; i++) {
1342             if (style->stroke_width.computed != 0)
1343                 d[i] = style->stroke_dash.dash[i] / style->stroke_width.computed;
1344             else
1345                 d[i] = style->stroke_dash.dash[i]; // is there a better thing to do for stroke_width==0?
1346         }
1347         sp_dash_selector_set_dash(SP_DASH_SELECTOR(dsel), len, d,
1348                style->stroke_width.computed != 0?
1349                     style->stroke_dash.offset / style->stroke_width.computed  :
1350                     style->stroke_dash.offset);
1351     } else {
1352         sp_dash_selector_set_dash(SP_DASH_SELECTOR(dsel), 0, NULL, 0.0);
1353     }
1354 }
1355
1356 /**
1357  * Sets the join type for a line, and updates the stroke style widget's buttons
1358  */
1359 static void
1360 sp_jointype_set (SPWidget *spw, unsigned const jointype)
1361 {
1362     GtkWidget *tb = NULL;
1363     switch (jointype) {
1364         case SP_STROKE_LINEJOIN_MITER:
1365             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_MITER));
1366             break;
1367         case SP_STROKE_LINEJOIN_ROUND:
1368             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_ROUND));
1369             break;
1370         case SP_STROKE_LINEJOIN_BEVEL:
1371             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_BEVEL));
1372             break;
1373         default:
1374             break;
1375     }
1376     sp_stroke_style_set_join_buttons (spw, tb);
1377 }
1378
1379 /**
1380  * Sets the cap type for a line, and updates the stroke style widget's buttons
1381  */
1382 static void
1383 sp_captype_set (SPWidget *spw, unsigned const captype)
1384 {
1385     GtkWidget *tb = NULL;
1386     switch (captype) {
1387         case SP_STROKE_LINECAP_BUTT:
1388             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_BUTT));
1389             break;
1390         case SP_STROKE_LINECAP_ROUND:
1391             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_ROUND));
1392             break;
1393         case SP_STROKE_LINECAP_SQUARE:
1394             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_SQUARE));
1395             break;
1396         default:
1397             break;
1398     }
1399     sp_stroke_style_set_cap_buttons (spw, tb);
1400 }
1401
1402 /**
1403  * Callback for when stroke style widget is updated, including markers, cap type,
1404  * join type, etc.
1405  */
1406 static void
1407 sp_stroke_style_line_update(SPWidget *spw, Inkscape::Selection *sel)
1408 {
1409     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1410         return;
1411     }
1412
1413     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
1414
1415     GtkWidget *sset = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "stroke"));
1416     GtkObject *width = GTK_OBJECT(gtk_object_get_data(GTK_OBJECT(spw), "width"));
1417     GtkObject *ml = GTK_OBJECT(gtk_object_get_data(GTK_OBJECT(spw), "miterlimit"));
1418     GtkWidget *us = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "units"));
1419     GtkWidget *dsel = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "dash"));
1420
1421     // create temporary style
1422     SPStyle *query = sp_style_new (SP_ACTIVE_DOCUMENT);
1423     // query into it
1424     int result_sw = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEWIDTH);
1425     int result_ml = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT);
1426     int result_cap = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKECAP);
1427     int result_join = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEJOIN);
1428
1429     if (result_sw == QUERY_STYLE_NOTHING) {
1430         /* No objects stroked, set insensitive */
1431         gtk_widget_set_sensitive(sset, FALSE);
1432
1433         gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
1434         return;
1435     } else {
1436         gtk_widget_set_sensitive(sset, TRUE);
1437
1438         SPUnit const *unit = sp_unit_selector_get_unit(SP_UNIT_SELECTOR(us));
1439
1440         if (result_sw == QUERY_STYLE_MULTIPLE_AVERAGED) {
1441             sp_unit_selector_set_unit(SP_UNIT_SELECTOR(us), &sp_unit_get_by_id(SP_UNIT_PERCENT));
1442         } else {
1443             // same width, or only one object; no sense to keep percent, switch to absolute
1444             if (unit->base != SP_UNIT_ABSOLUTE && unit->base != SP_UNIT_DEVICE) {
1445                 sp_unit_selector_set_unit(SP_UNIT_SELECTOR(us), sp_desktop_namedview(SP_ACTIVE_DESKTOP)->doc_units);
1446             }
1447         }
1448
1449         unit = sp_unit_selector_get_unit (SP_UNIT_SELECTOR (us));
1450
1451         if (unit->base == SP_UNIT_ABSOLUTE || unit->base == SP_UNIT_DEVICE) {
1452             double avgwidth = sp_pixels_get_units (query->stroke_width.computed, *unit);
1453             gtk_adjustment_set_value(GTK_ADJUSTMENT(width), avgwidth);
1454         } else {
1455             gtk_adjustment_set_value(GTK_ADJUSTMENT(width), 100);
1456         }
1457     }
1458
1459     if (result_ml != QUERY_STYLE_NOTHING)
1460         gtk_adjustment_set_value(GTK_ADJUSTMENT(ml), query->stroke_miterlimit.value); // TODO: reflect averagedness?
1461
1462     if (result_join != QUERY_STYLE_MULTIPLE_DIFFERENT) {
1463         sp_jointype_set (spw, query->stroke_linejoin.value);
1464     } else {
1465         sp_stroke_style_set_join_buttons(spw, NULL);
1466     }
1467
1468     if (result_cap != QUERY_STYLE_MULTIPLE_DIFFERENT) {
1469         sp_captype_set (spw, query->stroke_linecap.value);
1470     } else {
1471         sp_stroke_style_set_cap_buttons(spw, NULL);
1472     }
1473
1474     sp_style_unref(query);
1475
1476     if (!sel || sel->isEmpty())
1477         return;
1478
1479     GSList const *objects = sel->itemList();
1480     SPObject * const object = SP_OBJECT(objects->data);
1481     SPStyle * const style = SP_OBJECT_STYLE(object);
1482
1483     /* Markers */
1484     sp_stroke_style_update_marker_menus(spw, objects); // FIXME: make this desktop query too
1485
1486     /* Dash */
1487     sp_dash_selector_set_from_style (dsel, style); // FIXME: make this desktop query too
1488
1489     gtk_widget_set_sensitive(sset, TRUE);
1490
1491     gtk_object_set_data(GTK_OBJECT(spw), "update",
1492                         GINT_TO_POINTER(FALSE));
1493 }
1494
1495 /**
1496  * Sets a line's dash properties in a CSS style object.
1497  */
1498 static void
1499 sp_stroke_style_set_scaled_dash(SPCSSAttr *css,
1500                                 int ndash, double *dash, double offset,
1501                                 double scale)
1502 {
1503     if (ndash > 0) {
1504         Inkscape::CSSOStringStream osarray;
1505         for (int i = 0; i < ndash; i++) {
1506             osarray << dash[i] * scale;
1507             if (i < (ndash - 1)) {
1508                 osarray << ",";
1509             }
1510         }
1511         sp_repr_css_set_property(css, "stroke-dasharray", osarray.str().c_str());
1512
1513         Inkscape::CSSOStringStream osoffset;
1514         osoffset << offset * scale;
1515         sp_repr_css_set_property(css, "stroke-dashoffset", osoffset.str().c_str());
1516     } else {
1517         sp_repr_css_set_property(css, "stroke-dasharray", "none");
1518         sp_repr_css_set_property(css, "stroke-dashoffset", NULL);
1519     }
1520 }
1521
1522 /**
1523  * Sets line properties like width, dashes, markers, etc. on all currently selected items.
1524  */
1525 static void
1526 sp_stroke_style_scale_line(SPWidget *spw)
1527 {
1528     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1529         return;
1530     }
1531
1532     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
1533
1534     GtkAdjustment *wadj = GTK_ADJUSTMENT(gtk_object_get_data(GTK_OBJECT(spw), "width"));
1535     SPUnitSelector *us = SP_UNIT_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "units"));
1536     SPDashSelector *dsel = SP_DASH_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "dash"));
1537     GtkAdjustment *ml = GTK_ADJUSTMENT(gtk_object_get_data(GTK_OBJECT(spw), "miterlimit"));
1538
1539     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1540     SPDocument *document = sp_desktop_document (desktop);
1541     Inkscape::Selection *selection = sp_desktop_selection (desktop);
1542
1543     GSList const *items = selection->itemList();
1544
1545     /* TODO: Create some standardized method */
1546     SPCSSAttr *css = sp_repr_css_attr_new();
1547
1548     if (items) {
1549
1550         double width_typed = wadj->value;
1551         double const miterlimit = ml->value;
1552
1553         SPUnit const *const unit = sp_unit_selector_get_unit(SP_UNIT_SELECTOR(us));
1554
1555         double *dash, offset;
1556         int ndash;
1557         sp_dash_selector_get_dash(dsel, &ndash, &dash, &offset);
1558
1559         for (GSList const *i = items; i != NULL; i = i->next) {
1560             /* Set stroke width */
1561             double width;
1562             if (unit->base == SP_UNIT_ABSOLUTE || unit->base == SP_UNIT_DEVICE) {
1563                 width = sp_units_get_pixels (width_typed, *unit);
1564             } else { // percentage
1565                 gdouble old_w = SP_OBJECT_STYLE (i->data)->stroke_width.computed;
1566                 width = old_w * width_typed / 100;
1567             }
1568
1569             {
1570                 Inkscape::CSSOStringStream os_width;
1571                 os_width << width;
1572                 sp_repr_css_set_property(css, "stroke-width", os_width.str().c_str());
1573             }
1574
1575             {
1576                 Inkscape::CSSOStringStream os_ml;
1577                 os_ml << miterlimit;
1578                 sp_repr_css_set_property(css, "stroke-miterlimit", os_ml.str().c_str());
1579             }
1580
1581             /* Set dash */
1582             sp_stroke_style_set_scaled_dash(css, ndash, dash, offset, width);
1583
1584             sp_desktop_apply_css_recursive (SP_OBJECT(i->data), css, true);
1585         }
1586
1587         g_free(dash);
1588
1589         if (unit->base != SP_UNIT_ABSOLUTE && unit->base != SP_UNIT_DEVICE) {
1590             // reset to 100 percent
1591             gtk_adjustment_set_value (wadj, 100.0);
1592         }
1593
1594     }
1595
1596     // we have already changed the items, so set style without changing selection
1597     // FIXME: move the above stroke-setting stuff, including percentages, to desktop-style
1598     sp_desktop_set_style (desktop, css, false);
1599
1600     sp_repr_css_attr_unref(css);
1601
1602     sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
1603                      _("Set stroke style"));
1604
1605     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
1606 }
1607
1608
1609 /**
1610  * Callback for when the stroke style's width changes.
1611  * Causes all line styles to be applied to all selected items.
1612  */
1613 static void
1614 sp_stroke_style_width_changed(GtkAdjustment */*adj*/, SPWidget *spw)
1615 {
1616     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1617         return;
1618     }
1619
1620     sp_stroke_style_scale_line(spw);
1621 }
1622
1623 /**
1624  * Callback for when the stroke style's miterlimit changes.
1625  * Causes all line styles to be applied to all selected items.
1626  */
1627 static void
1628 sp_stroke_style_miterlimit_changed(GtkAdjustment */*adj*/, SPWidget *spw)
1629 {
1630     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1631         return;
1632     }
1633
1634     sp_stroke_style_scale_line(spw);
1635 }
1636
1637 /**
1638  * Callback for when the stroke style's dash changes.
1639  * Causes all line styles to be applied to all selected items.
1640  */
1641 static void
1642 sp_stroke_style_line_dash_changed(SPDashSelector */*dsel*/, SPWidget *spw)
1643 {
1644     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1645         return;
1646     }
1647
1648     sp_stroke_style_scale_line(spw);
1649 }
1650
1651
1652
1653 /**
1654  * \brief  This routine handles toggle events for buttons in the stroke style
1655  *         dialog.
1656  * When activated, this routine gets the data for the various widgets, and then
1657  * calls the respective routines to update css properties, etc.
1658  *
1659  */
1660 static void
1661 sp_stroke_style_any_toggled(GtkToggleButton *tb, SPWidget *spw)
1662 {
1663     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1664         return;
1665     }
1666
1667     if (gtk_toggle_button_get_active(tb)) {
1668
1669         gchar const *join
1670             = static_cast<gchar const *>(gtk_object_get_data(GTK_OBJECT(tb), "join"));
1671         gchar const *cap
1672             = static_cast<gchar const *>(gtk_object_get_data(GTK_OBJECT(tb), "cap"));
1673
1674         if (join) {
1675             GtkWidget *ml = GTK_WIDGET(g_object_get_data(G_OBJECT(spw), "miterlimit_sb"));
1676             gtk_widget_set_sensitive (ml, !strcmp(join, "miter"));
1677         }
1678
1679         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1680
1681         /* TODO: Create some standardized method */
1682         SPCSSAttr *css = sp_repr_css_attr_new();
1683
1684         if (join) {
1685             sp_repr_css_set_property(css, "stroke-linejoin", join);
1686
1687             sp_desktop_set_style (desktop, css);
1688
1689             sp_stroke_style_set_join_buttons(spw, GTK_WIDGET(tb));
1690         } else if (cap) {
1691             sp_repr_css_set_property(css, "stroke-linecap", cap);
1692
1693             sp_desktop_set_style (desktop, css);
1694
1695             sp_stroke_style_set_cap_buttons(spw, GTK_WIDGET(tb));
1696         }
1697
1698         sp_repr_css_attr_unref(css);
1699
1700         sp_document_done(sp_desktop_document(desktop), SP_VERB_DIALOG_FILL_STROKE,
1701                          _("Set stroke style"));
1702     }
1703 }
1704
1705
1706 /**
1707  * Updates the join style toggle buttons
1708  */
1709 static void
1710 sp_stroke_style_set_join_buttons(SPWidget *spw, GtkWidget *active)
1711 {
1712     GtkWidget *tb;
1713
1714     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1715                                          INKSCAPE_STOCK_JOIN_MITER) );
1716     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1717
1718     GtkWidget *ml = GTK_WIDGET(g_object_get_data(G_OBJECT(spw), "miterlimit_sb"));
1719     gtk_widget_set_sensitive(ml, (active == tb));
1720
1721     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1722                                          INKSCAPE_STOCK_JOIN_ROUND) );
1723     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1724     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1725                                          INKSCAPE_STOCK_JOIN_BEVEL) );
1726     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1727 }
1728
1729
1730
1731 /**
1732  * Updates the cap style toggle buttons
1733  */
1734 static void
1735 sp_stroke_style_set_cap_buttons(SPWidget *spw, GtkWidget *active)
1736 {
1737     GtkWidget *tb;
1738
1739     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1740                                          INKSCAPE_STOCK_CAP_BUTT));
1741     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1742     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1743                                          INKSCAPE_STOCK_CAP_ROUND) );
1744     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1745     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1746                                          INKSCAPE_STOCK_CAP_SQUARE) );
1747     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1748 }
1749
1750 /**
1751  * Sets the current marker in the marker menu.
1752  */
1753 static void
1754 ink_marker_menu_set_current(SPObject *marker, GtkOptionMenu *mnu)
1755 {
1756     gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(TRUE));
1757
1758     GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu(mnu));
1759     if (marker != NULL) {
1760         bool mark_is_stock = false;
1761         if (SP_OBJECT_REPR(marker)->attribute("inkscape:stockid"))
1762             mark_is_stock = true;
1763
1764         gchar *markname;
1765         if (mark_is_stock)
1766             markname = g_strdup(SP_OBJECT_REPR(marker)->attribute("inkscape:stockid"));
1767         else
1768             markname = g_strdup(SP_OBJECT_REPR(marker)->attribute("id"));
1769
1770         int markpos = ink_marker_menu_get_pos(m, markname);
1771         gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), markpos);
1772
1773         g_free (markname);
1774     }
1775     else {
1776         gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
1777     }
1778     gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(FALSE));
1779 }
1780
1781 /**
1782  * Updates the marker menus to highlight the appropriate marker and scroll to
1783  * that marker.
1784  */
1785 static void
1786 sp_stroke_style_update_marker_menus( SPWidget *spw,
1787                                      GSList const *objects)
1788 {
1789     struct { char const *key; int loc; } const keyloc[] = {
1790         { "start_mark_menu", SP_MARKER_LOC_START },
1791         { "mid_mark_menu", SP_MARKER_LOC_MID },
1792         { "end_mark_menu", SP_MARKER_LOC_END }
1793     };
1794
1795     bool all_texts = true;
1796     for (GSList *i = (GSList *) objects; i != NULL; i = i->next) {
1797         if (!SP_IS_TEXT (i->data)) {
1798             all_texts = false;
1799         }
1800     }
1801
1802     for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
1803         GtkOptionMenu *mnu = (GtkOptionMenu *) g_object_get_data(G_OBJECT(spw), keyloc[i].key);
1804         if (all_texts) {
1805             // Per SVG spec, text objects cannot have markers; disable menus if only texts are selected
1806             gtk_widget_set_sensitive (GTK_WIDGET(mnu), FALSE);
1807         } else {
1808             gtk_widget_set_sensitive (GTK_WIDGET(mnu), TRUE);
1809         }
1810     }
1811
1812     // We show markers of the first object in the list only
1813     // FIXME: use the first in the list that has the marker of each type, if any
1814     SPObject *object = SP_OBJECT(objects->data);
1815
1816     for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
1817         // For all three marker types,
1818
1819         // find the corresponding menu
1820         GtkOptionMenu *mnu = (GtkOptionMenu *) g_object_get_data(G_OBJECT(spw), keyloc[i].key);
1821
1822         // Quit if we're in update state
1823         if (gtk_object_get_data(GTK_OBJECT(mnu), "update")) {
1824             return;
1825         }
1826
1827         if (object->style->marker[keyloc[i].loc].value != NULL && !all_texts) {
1828             // If the object has this type of markers,
1829
1830             // Extract the name of the marker that the object uses
1831             SPObject *marker = ink_extract_marker_name(object->style->marker[keyloc[i].loc].value);
1832             // Scroll the menu to that marker
1833             ink_marker_menu_set_current (marker, mnu);
1834
1835         } else {
1836             gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
1837         }
1838     }
1839 }
1840
1841
1842 /**
1843  * Extract the actual name of the link
1844  * e.g. get mTriangle from url(#mTriangle).
1845  * \return Buffer containing the actual name, allocated from GLib;
1846  * the caller should free the buffer when they no longer need it.
1847  */
1848 static SPObject*
1849 ink_extract_marker_name(gchar const *n)
1850 {
1851     gchar const *p = n;
1852     while (*p != '\0' && *p != '#') {
1853         p++;
1854     }
1855
1856     if (*p == '\0' || p[1] == '\0') {
1857         return NULL;
1858     }
1859
1860     p++;
1861     int c = 0;
1862     while (p[c] != '\0' && p[c] != ')') {
1863         c++;
1864     }
1865
1866     if (p[c] == '\0') {
1867         return NULL;
1868     }
1869
1870     gchar* b = g_strdup(p);
1871     b[c] = '\0';
1872
1873     SPDesktop *desktop = inkscape_active_desktop();
1874     SPDocument *doc = sp_desktop_document(desktop);
1875     SPObject *marker = doc->getObjectById(b);
1876     return marker;
1877 }
1878
1879
1880 /*
1881   Local Variables:
1882   mode:c++
1883   c-file-style:"stroustrup"
1884   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1885   indent-tabs-mode:nil
1886   fill-column:99
1887   End:
1888 */
1889 // vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :