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 static void
 188 sp_stroke_style_widget_transientize_callback(Inkscape::Application *inkscape,
 189                                         SPDesktop *desktop,
 190                                         SPWidget *spw )
 191 {
 192     ink_markers_menu_update(spw);
 193 }
 194
 195 /**
 196  * Gets the active stroke style property, then sets the appropriate color, alpha, gradient,
 197  * pattern, etc. for the paint-selector.
 198  */
 199 static void
 200 sp_stroke_style_paint_update (SPWidget *spw)
 201 {
 202     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 203         return;
 204     }
 205
 206     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
 207
 208     SPPaintSelector *psel = SP_PAINT_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "paint-selector"));
 209
 210     // create temporary style
 211     SPStyle *query = sp_style_new ();
 212     // query into it
 213     int result = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKE);
 214
 215     switch (result) {
 216         case QUERY_STYLE_NOTHING:
 217         {
 218             /* No paint at all */
 219             sp_paint_selector_set_mode (psel, SP_PAINT_SELECTOR_MODE_EMPTY);
 220             break;
 221         }
 222
 223         case QUERY_STYLE_SINGLE:
 224         case QUERY_STYLE_MULTIPLE_AVERAGED: // TODO: treat this slightly differently, e.g. display "averaged" somewhere in paint selector
 225         case QUERY_STYLE_MULTIPLE_SAME:
 226         {
 227             SPPaintSelectorMode pselmode = sp_style_determine_paint_selector_mode (query, false);
 228             sp_paint_selector_set_mode (psel, pselmode);
 229
 230             if (query->stroke.set && query->stroke.type == SP_PAINT_TYPE_COLOR) {
 231                 gfloat d[3];
 232                 sp_color_get_rgb_floatv (&query->stroke.value.color, d);
 233                 SPColor color;
 234                 sp_color_set_rgb_float (&color, d[0], d[1], d[2]);
 235                 sp_paint_selector_set_color_alpha (psel, &color, SP_SCALE24_TO_FLOAT (query->stroke_opacity.value));
 236
 237             } else if (query->stroke.set && query->stroke.type == SP_PAINT_TYPE_PAINTSERVER) {
 238
 239                 SPPaintServer *server = SP_STYLE_STROKE_SERVER (query);
 240
 241                 if (SP_IS_LINEARGRADIENT (server)) {
 242                     SPGradient *vector = sp_gradient_get_vector (SP_GRADIENT (server), FALSE);
 243                     sp_paint_selector_set_gradient_linear (psel, vector);
 244
 245                     SPLinearGradient *lg = SP_LINEARGRADIENT (server);
 246                     sp_paint_selector_set_gradient_properties (psel,
 247                                                        SP_GRADIENT_UNITS (lg),
 248                                                        SP_GRADIENT_SPREAD (lg));
 249                 } else if (SP_IS_RADIALGRADIENT (server)) {
 250                     SPGradient *vector = sp_gradient_get_vector (SP_GRADIENT (server), FALSE);
 251                     sp_paint_selector_set_gradient_radial (psel, vector);
 252
 253                     SPRadialGradient *rg = SP_RADIALGRADIENT (server);
 254                     sp_paint_selector_set_gradient_properties (psel,
 255                                                        SP_GRADIENT_UNITS (rg),
 256                                                        SP_GRADIENT_SPREAD (rg));
 257                 } else if (SP_IS_PATTERN (server)) {
 258                     SPPattern *pat = pattern_getroot (SP_PATTERN (server));
 259                     sp_update_pattern_list (psel, pat);
 260                 }
 261             }
 262             break;
 263         }
 264
 265         case QUERY_STYLE_MULTIPLE_DIFFERENT:
 266         {
 267             sp_paint_selector_set_mode (psel, SP_PAINT_SELECTOR_MODE_MULTIPLE);
 268             break;
 269         }
 270     }
 271
 272     g_free (query);
 273
 274     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
 275 }
 276
 277 /**
 278  * When the mode is changed, invoke a regular changed handler.
 279  */
 280 static void
 281 sp_stroke_style_paint_mode_changed( SPPaintSelector *psel,
 282                                     SPPaintSelectorMode mode,
 283                                     SPWidget *spw )
 284 {
 285     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 286         return;
 287     }
 288
 289     /* TODO: Does this work?
 290      * Not really, here we have to get old color back from object
 291      * Instead of relying on paint widget having meaningful colors set
 292      */
 293     sp_stroke_style_paint_changed(psel, spw);
 294 }
 295
 296 static gchar *undo_label_1 = "stroke:flatcolor:1";
 297 static gchar *undo_label_2 = "stroke:flatcolor:2";
 298 static gchar *undo_label = undo_label_1;
 299
 300 /**
 301  * When a drag callback occurs on a paint selector object, if it is a RGB or CMYK
 302  * color mode, then set the stroke opacity to psel's flat color.
 303  */
 304 static void
 305 sp_stroke_style_paint_dragged(SPPaintSelector *psel, SPWidget *spw)
 306 {
 307     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 308         return;
 309     }
 310
 311     switch (psel->mode) {
 312         case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
 313         case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
 314         {
 315             sp_paint_selector_set_flat_color (psel, SP_ACTIVE_DESKTOP, "stroke", "stroke-opacity");
 316             sp_document_maybe_done (sp_desktop_document(SP_ACTIVE_DESKTOP), undo_label, SP_VERB_DIALOG_FILL_STROKE,
 317                                     _("Set stroke color"));
 318             break;
 319         }
 320
 321         default:
 322             g_warning( "file %s: line %d: Paint %d should not emit 'dragged'",
 323                        __FILE__, __LINE__, psel->mode);
 324             break;
 325     }
 326 }
 327
 328 /**
 329  * When the stroke style's paint settings change, this handler updates the
 330  * repr's stroke css style and applies the style to relevant drawing items.
 331  */
 332 static void
 333 sp_stroke_style_paint_changed(SPPaintSelector *psel, SPWidget *spw)
 334 {
 335     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 336         return;
 337     }
 338     g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (TRUE));
 339
 340     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 341     SPDocument *document = sp_desktop_document (desktop);
 342     Inkscape::Selection *selection = sp_desktop_selection (desktop);
 343
 344     GSList const *items = selection->itemList();
 345
 346     switch (psel->mode) {
 347         case SP_PAINT_SELECTOR_MODE_EMPTY:
 348             // This should not happen.
 349             g_warning ( "file %s: line %d: Paint %d should not emit 'changed'",
 350                         __FILE__, __LINE__, psel->mode);
 351             break;
 352         case SP_PAINT_SELECTOR_MODE_MULTIPLE:
 353             // This happens when you switch multiple objects with different gradients to flat color;
 354             // nothing to do here.
 355             break;
 356
 357         case SP_PAINT_SELECTOR_MODE_NONE:
 358         {
 359             SPCSSAttr *css = sp_repr_css_attr_new();
 360             sp_repr_css_set_property(css, "stroke", "none");
 361
 362             sp_desktop_set_style (desktop, css);
 363
 364             sp_repr_css_attr_unref(css);
 365
 366             sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
 367                              _("Remove stroke"));
 368             break;
 369         }
 370
 371         case SP_PAINT_SELECTOR_MODE_COLOR_RGB:
 372         case SP_PAINT_SELECTOR_MODE_COLOR_CMYK:
 373         {
 374             sp_paint_selector_set_flat_color (psel, desktop, "stroke", "stroke-opacity");
 375             sp_document_maybe_done (sp_desktop_document(desktop), undo_label, SP_VERB_DIALOG_FILL_STROKE,
 376                                     _("Set stroke color"));
 377
 378             // on release, toggle undo_label so that the next drag will not be lumped with this one
 379             if (undo_label == undo_label_1)
 380                 undo_label = undo_label_2;
 381             else
 382                 undo_label = undo_label_1;
 383
 384             break;
 385         }
 386
 387         case SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR:
 388         case SP_PAINT_SELECTOR_MODE_GRADIENT_RADIAL:
 389             if (items) {
 390                 SPGradientType const gradient_type = ( psel->mode == SP_PAINT_SELECTOR_MODE_GRADIENT_LINEAR
 391                                                        ? SP_GRADIENT_TYPE_LINEAR
 392                                                        : SP_GRADIENT_TYPE_RADIAL );
 393                 SPGradient *vector = sp_paint_selector_get_gradient_vector(psel);
 394                 if (!vector) {
 395                     /* No vector in paint selector should mean that we just changed mode */
 396
 397                     SPStyle *query = sp_style_new ();
 398                     int result = objects_query_fillstroke ((GSList *) items, query, false);
 399                     guint32 common_rgb = 0;
 400                     if (result == QUERY_STYLE_MULTIPLE_SAME) {
 401                         if (query->fill.type != SP_PAINT_TYPE_COLOR) {
 402                             common_rgb = sp_desktop_get_color(desktop, false);
 403                         } else {
 404                             common_rgb = sp_color_get_rgba32_ualpha(&query->stroke.value.color, 0xff);
 405                         }
 406                         vector = sp_document_default_gradient_vector(document, common_rgb);
 407                     }
 408                     g_free (query);
 409
 410                     for (GSList const *i = items; i != NULL; i = i->next) {
 411                         if (!vector) {
 412                             sp_item_set_gradient(SP_ITEM(i->data),
 413                                                  sp_gradient_vector_for_object(document, desktop, SP_OBJECT(i->data), false),
 414                                                  gradient_type, false);
 415                         } else {
 416                             sp_item_set_gradient(SP_ITEM(i->data), vector, gradient_type, false);
 417                         }
 418                     }
 419                 } else {
 420                     vector = sp_gradient_ensure_vector_normalized(vector);
 421                     for (GSList const *i = items; i != NULL; i = i->next) {
 422                         SPGradient *gr = sp_item_set_gradient(SP_ITEM(i->data), vector, gradient_type, false);
 423                         sp_gradient_selector_attrs_to_gradient(gr, psel);
 424                     }
 425                 }
 426
 427                 sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
 428                                  _("Set gradient on stroke"));
 429             }
 430             break;
 431
 432         case SP_PAINT_SELECTOR_MODE_PATTERN:
 433
 434             if (items) {
 435
 436                 SPPattern *pattern = sp_paint_selector_get_pattern (psel);
 437                 if (!pattern) {
 438
 439                     /* No Pattern in paint selector should mean that we just
 440                      * changed mode - dont do jack.
 441                      */
 442
 443                 } else {
 444                     Inkscape::XML::Node *patrepr = SP_OBJECT_REPR(pattern);
 445                     SPCSSAttr *css = sp_repr_css_attr_new ();
 446                     gchar *urltext = g_strdup_printf ("url(#%s)", patrepr->attribute("id"));
 447                     sp_repr_css_set_property (css, "stroke", urltext);
 448
 449                     for (GSList const *i = items; i != NULL; i = i->next) {
 450                          Inkscape::XML::Node *selrepr = SP_OBJECT_REPR (i->data);
 451                          SPObject *selobj = SP_OBJECT (i->data);
 452                          if (!selrepr)
 453                              continue;
 454
 455                          SPStyle *style = SP_OBJECT_STYLE (selobj);
 456                          if (style && style->stroke.type == SP_PAINT_TYPE_PAINTSERVER) {
 457                              SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER (selobj);
 458                              if (SP_IS_PATTERN (server) && pattern_getroot (SP_PATTERN(server)) == pattern)
 459                                  // only if this object's pattern is not rooted in our selected pattern, apply
 460                                  continue;
 461                          }
 462
 463                          sp_repr_css_change_recursive (selrepr, css, "style");
 464                      }
 465
 466                     sp_repr_css_attr_unref (css);
 467                     g_free (urltext);
 468
 469                 } // end if
 470
 471                 sp_document_done (document, SP_VERB_DIALOG_FILL_STROKE,
 472                                   _("Set pattern on stroke"));
 473             } // end if
 474
 475             break;
 476
 477         case SP_PAINT_SELECTOR_MODE_UNSET:
 478             if (items) {
 479                     SPCSSAttr *css = sp_repr_css_attr_new ();
 480                     sp_repr_css_unset_property (css, "stroke");
 481
 482                     sp_desktop_set_style (desktop, css);
 483                     sp_repr_css_attr_unref (css);
 484
 485                     sp_document_done (document, SP_VERB_DIALOG_FILL_STROKE,
 486                                       _("Unset stroke"));
 487             }
 488             break;
 489
 490         default:
 491             g_warning( "file %s: line %d: Paint selector should not be in "
 492                        "mode %d",
 493                        __FILE__, __LINE__,
 494                        psel->mode );
 495             break;
 496     }
 497
 498     g_object_set_data (G_OBJECT (spw), "update", GINT_TO_POINTER (FALSE));
 499 }
 500
 501
 502
 503
 504
 505 /* Line */
 506
 507 static void sp_stroke_style_line_construct(SPWidget *spw, gpointer data);
 508 static void sp_stroke_style_line_selection_modified (SPWidget *spw,
 509                                                   Inkscape::Selection *selection,
 510                                                   guint flags,
 511                                                   gpointer data);
 512
 513 static void sp_stroke_style_line_selection_changed (SPWidget *spw,
 514                                                    Inkscape::Selection *selection,
 515                                                    gpointer data );
 516
 517 static void sp_stroke_style_line_update(SPWidget *spw, Inkscape::Selection *sel);
 518
 519 static void sp_stroke_style_set_join_buttons(SPWidget *spw,
 520                                              GtkWidget *active);
 521
 522 static void sp_stroke_style_set_cap_buttons(SPWidget *spw,
 523                                             GtkWidget *active);
 524
 525 static void sp_stroke_style_width_changed(GtkAdjustment *adj, SPWidget *spw);
 526 static void sp_stroke_style_miterlimit_changed(GtkAdjustment *adj, SPWidget *spw);
 527 static void sp_stroke_style_any_toggled(GtkToggleButton *tb, SPWidget *spw);
 528 static void sp_stroke_style_line_dash_changed(SPDashSelector *dsel,
 529                                               SPWidget *spw);
 530
 531 static void sp_stroke_style_update_marker_menus(SPWidget *spw, GSList const *objects);
 532
 533
 534 /**
 535  * Helper function for creating radio buttons.  This should probably be re-thought out
 536  * when reimplementing this with Gtkmm.
 537  */
 538 static GtkWidget *
 539 sp_stroke_radio_button(GtkWidget *tb, char const *icon,
 540                        GtkWidget *hb, GtkWidget *spw,
 541                        gchar const *key, gchar const *data)
 542 {
 543     g_assert(icon != NULL);
 544     g_assert(hb  != NULL);
 545     g_assert(spw != NULL);
 546
 547     if (tb == NULL) {
 548         tb = gtk_radio_button_new(NULL);
 549     } else {
 550         tb = gtk_radio_button_new(gtk_radio_button_group(GTK_RADIO_BUTTON(tb)) );
 551     }
 552
 553     gtk_widget_show(tb);
 554     gtk_toggle_button_set_mode(GTK_TOGGLE_BUTTON(tb), FALSE);
 555     gtk_box_pack_start(GTK_BOX(hb), tb, FALSE, FALSE, 0);
 556     gtk_object_set_data(GTK_OBJECT(spw), icon, tb);
 557     gtk_object_set_data(GTK_OBJECT(tb), key, (gpointer*)data);
 558     gtk_signal_connect(GTK_OBJECT(tb), "toggled",
 559                        GTK_SIGNAL_FUNC(sp_stroke_style_any_toggled),
 560                        spw);
 561     GtkWidget *px = sp_icon_new(Inkscape::ICON_SIZE_LARGE_TOOLBAR, icon);
 562     g_assert(px != NULL);
 563     gtk_widget_show(px);
 564     gtk_container_add(GTK_CONTAINER(tb), px);
 565
 566     return tb;
 567
 568 }
 569
 570 /**
 571  * Creates a copy of the marker named mname, determines its visible and renderable
 572  * area in menu_id's bounding box, and then renders it.  This allows us to fill in
 573  * preview images of each marker in the marker menu.
 574  */
 575 static GtkWidget *
 576 sp_marker_prev_new(unsigned psize, gchar const *mname,
 577                    SPDocument *source, SPDocument *sandbox,
 578                    gchar *menu_id, NRArena const *arena, unsigned visionkey, NRArenaItem *root)
 579 {
 580     // Retrieve the marker named 'mname' from the source SVG document
 581     SPObject const *marker = source->getObjectById(mname);
 582     if (marker == NULL)
 583         return NULL;
 584
 585     // Create a copy repr of the marker with id="sample"
 586     Inkscape::XML::Node *mrepr = SP_OBJECT_REPR (marker)->duplicate();
 587     mrepr->setAttribute("id", "sample");
 588
 589     // Replace the old sample in the sandbox by the new one
 590     Inkscape::XML::Node *defsrepr = SP_OBJECT_REPR (sandbox->getObjectById("defs"));
 591     SPObject *oldmarker = sandbox->getObjectById("sample");
 592     if (oldmarker)
 593         oldmarker->deleteObject(false);
 594     defsrepr->appendChild(mrepr);
 595     Inkscape::GC::release(mrepr);
 596
 597 // Uncomment this to get the sandbox documents saved (useful for debugging)
 598     //FILE *fp = fopen (g_strconcat(mname, ".svg", NULL), "w");
 599     //sp_repr_save_stream (sp_document_repr_doc (sandbox), fp);
 600     //fclose (fp);
 601
 602     // object to render; note that the id is the same as that of the menu we're building
 603     SPObject *object = sandbox->getObjectById(menu_id);
 604     sp_document_root (sandbox)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
 605     sp_document_ensure_up_to_date(sandbox);
 606
 607     if (object == NULL || !SP_IS_ITEM(object))
 608         return NULL; // sandbox broken?
 609
 610     // Find object's bbox in document
 611     NR::Matrix const i2doc(sp_item_i2doc_affine(SP_ITEM(object)));
 612     NR::Rect const dbox = SP_ITEM(object)->invokeBbox(i2doc);
 613
 614     if (dbox.isEmpty()) {
 615         return NULL;
 616     }
 617
 618     /* Update to renderable state */
 619     double sf = 0.8;
 620     GdkPixbuf* pixbuf = NULL;
 621
 622     Glib::ustring key = svg_preview_cache.cache_key(source->uri, mname, psize);
 623     pixbuf = svg_preview_cache.get_preview_from_cache(key);
 624
 625     if (pixbuf == NULL) {
 626         pixbuf = render_pixbuf(root, sf, dbox, psize);
 627         svg_preview_cache.set_preview_in_cache(key, pixbuf);
 628     }
 629
 630     // Create widget
 631     GtkWidget *pb = gtk_image_new_from_pixbuf(pixbuf);
 632
 633     return pb;
 634 }
 635
 636
 637 /**
 638  *  Returns a list of markers in the defs of the given source document as a GSList object
 639  *  Returns NULL if there are no markers in the document.
 640  */
 641 GSList *
 642 ink_marker_list_get (SPDocument *source)
 643 {
 644     if (source == NULL)
 645         return NULL;
 646
 647     GSList *ml   = NULL;
 648     SPDefs *defs = (SPDefs *) SP_DOCUMENT_DEFS (source);
 649     for ( SPObject *child = sp_object_first_child(SP_OBJECT(defs));
 650           child != NULL;
 651           child = SP_OBJECT_NEXT (child) )
 652     {
 653         if (SP_IS_MARKER(child)) {
 654             ml = g_slist_prepend (ml, child);
 655         }
 656     }
 657     return ml;
 658 }
 659
 660 #define MARKER_ITEM_MARGIN 0
 661
 662 /**
 663  * Adds previews of markers in marker_list to the given menu widget
 664  */
 665 static void
 666 sp_marker_menu_build (GtkWidget *m, GSList *marker_list, SPDocument *source, SPDocument *sandbox, gchar *menu_id)
 667 {
 668     // Do this here, outside of loop, to speed up preview generation:
 669     NRArena const *arena = NRArena::create();
 670     unsigned const visionkey = sp_item_display_key_new(1);
 671     NRArenaItem *root =  sp_item_invoke_show( SP_ITEM(SP_DOCUMENT_ROOT (sandbox)), (NRArena *) arena, visionkey, SP_ITEM_SHOW_DISPLAY );
 672
 673     for (; marker_list != NULL; marker_list = marker_list->next) {
 674         Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) marker_list->data);
 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
 691         GtkWidget *prv = sp_marker_prev_new (22, markid, source, sandbox, menu_id, arena, visionkey, root);
 692         gtk_widget_show(prv);
 693         gtk_box_pack_start(GTK_BOX(hb), prv, FALSE, FALSE, 6);
 694
 695         // create label
 696         GtkWidget *l = gtk_label_new(repr->attribute("id"));
 697         gtk_widget_show(l);
 698         gtk_misc_set_alignment(GTK_MISC(l), 0.0, 0.5);
 699
 700         gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
 701
 702         gtk_widget_show(hb);
 703         gtk_container_add(GTK_CONTAINER(i), hb);
 704
 705         gtk_menu_append(GTK_MENU(m), i);
 706     }
 707 }
 708
 709 /**
 710  * sp_marker_list_from_doc()
 711  *
 712  * \brief Pick up all markers from source, except those that are in
 713  * current_doc (if non-NULL), and add items to the m menu
 714  *
 715  */
 716 static void
 717 sp_marker_list_from_doc (GtkWidget *m, SPDocument *current_doc, SPDocument *source, SPDocument *markers_doc, SPDocument *sandbox, gchar *menu_id)
 718 {
 719     GSList *ml = ink_marker_list_get(source);
 720     GSList *clean_ml = NULL;
 721
 722     for (; ml != NULL; ml = ml->next) {
 723         if (!SP_IS_MARKER(ml->data))
 724             continue;
 725
 726         // Add to the list of markers we really do wish to show
 727         clean_ml = g_slist_prepend (clean_ml, ml->data);
 728     }
 729     sp_marker_menu_build (m, clean_ml, source, sandbox, menu_id);
 730
 731     g_slist_free (ml);
 732     g_slist_free (clean_ml);
 733 }
 734
 735
 736 /**
 737  * Returns a new document containing default start, mid, and end markers.
 738  */
 739 SPDocument *
 740 ink_markers_preview_doc ()
 741 {
 742 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\">"
 743 "  <defs id=\"defs\" />"
 744
 745 "  <g id=\"marker-start\">"
 746 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:url(#sample);marker-mid:none;marker-end:none\""
 747 "       d=\"M 12.5,13 L 25,13\" id=\"path1\" />"
 748 "    <rect style=\"fill:none;stroke:none\" id=\"rect2\""
 749 "       width=\"25\" height=\"25\" x=\"0\" y=\"0\" />"
 750 "  </g>"
 751
 752 "  <g id=\"marker-mid\">"
 753 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:url(#sample);marker-end:none\""
 754 "       d=\"M 0,113 L 12.5,113 L 25,113\" id=\"path11\" />"
 755 "    <rect style=\"fill:none;stroke:none\" id=\"rect22\""
 756 "       width=\"25\" height=\"25\" x=\"0\" y=\"100\" />"
 757 "  </g>"
 758
 759 "  <g id=\"marker-end\">"
 760 "    <path style=\"fill:none;stroke:black;stroke-width:1.7;marker-start:none;marker-mid:none;marker-end:url(#sample)\""
 761 "       d=\"M 0,213 L 12.5,213\" id=\"path111\" />"
 762 "    <rect style=\"fill:none;stroke:none\" id=\"rect222\""
 763 "       width=\"25\" height=\"25\" x=\"0\" y=\"200\" />"
 764 "  </g>"
 765
 766 "</svg>";
 767
 768     return sp_document_new_from_mem (buffer, strlen(buffer), FALSE);
 769 }
 770
 771 static void
 772 ink_marker_menu_create_menu(GtkWidget *m, gchar *menu_id, SPDocument *doc, SPDocument *sandbox)
 773 {
 774     static SPDocument *markers_doc = NULL;
 775
 776     // add "None"
 777     GtkWidget *i = gtk_menu_item_new();
 778     gtk_widget_show(i);
 779
 780     g_object_set_data(G_OBJECT(i), "marker", (void *) "none");
 781
 782     GtkWidget *hb = gtk_hbox_new(FALSE,  MARKER_ITEM_MARGIN);
 783     gtk_widget_show(hb);
 784
 785     GtkWidget *l = gtk_label_new( _("None") );
 786     gtk_widget_show(l);
 787     gtk_misc_set_alignment(GTK_MISC(l), 0.0, 0.5);
 788
 789     gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
 790
 791     gtk_widget_show(hb);
 792     gtk_container_add(GTK_CONTAINER(i), hb);
 793     gtk_menu_append(GTK_MENU(m), i);
 794
 795     // find and load  markers.svg
 796     if (markers_doc == NULL) {
 797         char *markers_source = g_build_filename(INKSCAPE_MARKERSDIR, "markers.svg", NULL);
 798         if (Inkscape::IO::file_test(markers_source, G_FILE_TEST_IS_REGULAR)) {
 799             markers_doc = sp_document_new(markers_source, FALSE);
 800         }
 801         g_free(markers_source);
 802     }
 803
 804     // suck in from current doc
 805     sp_marker_list_from_doc ( m, NULL, doc, markers_doc, sandbox, menu_id );
 806
 807     // add separator
 808     {
 809         GtkWidget *i = gtk_separator_menu_item_new();
 810         gtk_widget_show(i);
 811         gtk_menu_append(GTK_MENU(m), i);
 812     }
 813
 814     // suck in from markers.svg
 815     if (markers_doc) {
 816         sp_document_ensure_up_to_date(doc);
 817         sp_marker_list_from_doc ( m, doc, markers_doc, NULL, sandbox, menu_id );
 818     }
 819
 820 }
 821
 822
 823 /**
 824  * Creates a menu widget to display markers from markers.svg
 825  */
 826 static GtkWidget *
 827 ink_marker_menu( GtkWidget *tbl, gchar *menu_id, SPDocument *sandbox)
 828 {
 829     SPDesktop *desktop = inkscape_active_desktop();
 830     SPDocument *doc = sp_desktop_document(desktop);
 831     GtkWidget *mnu = gtk_option_menu_new();
 832
 833     /* Create new menu widget */
 834     GtkWidget *m = gtk_menu_new();
 835     gtk_widget_show(m);
 836
 837     g_object_set_data(G_OBJECT(mnu), "updating", (gpointer) FALSE);
 838
 839     if (!doc) {
 840         GtkWidget *i = gtk_menu_item_new_with_label(_("No document selected"));
 841         gtk_widget_show(i);
 842         gtk_menu_append(GTK_MENU(m), i);
 843         gtk_widget_set_sensitive(mnu, FALSE);
 844
 845     } else {
 846         ink_marker_menu_create_menu(m, menu_id, doc, sandbox);
 847
 848         gtk_widget_set_sensitive(mnu, TRUE);
 849     }
 850
 851     gtk_object_set_data(GTK_OBJECT(mnu), "menu_id", menu_id);
 852     gtk_option_menu_set_menu(GTK_OPTION_MENU(mnu), m);
 853
 854     /* Set history */
 855     gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
 856
 857     return mnu;
 858 }
 859
 860
 861 /**
 862  * Handles when user selects one of the markers from the marker menu.
 863  * Defines a uri string to refer to it, then applies it to all selected
 864  * items in the current desktop.
 865  */
 866 static void
 867 sp_marker_select(GtkOptionMenu *mnu, GtkWidget *spw)
 868 {
 869     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
 870         return;
 871     }
 872
 873     SPDesktop *desktop = inkscape_active_desktop();
 874     SPDocument *document = sp_desktop_document(desktop);
 875     if (!document) {
 876         return;
 877     }
 878
 879     /* Get Marker */
 880     if (!g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 881                            "marker"))
 882     {
 883         return;
 884     }
 885     gchar *markid = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 886                                                 "marker");
 887     gchar *marker = "";
 888     if (strcmp(markid, "none")){
 889        gchar *stockid = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))),
 890                                                 "stockid");
 891
 892        gchar *markurn = markid;
 893        if (!strcmp(stockid,"true")) markurn = g_strconcat("urn:inkscape:marker:",markid,NULL);
 894        SPObject *mark = get_stock_item(markurn);
 895        if (mark) {
 896             Inkscape::XML::Node *repr = SP_OBJECT_REPR(mark);
 897             marker = g_strconcat("url(#", repr->attribute("id"), ")", NULL);
 898         }
 899     } else {
 900         marker = markid;
 901     }
 902
 903     SPCSSAttr *css = sp_repr_css_attr_new();
 904     gchar *menu_id = (gchar *) g_object_get_data(G_OBJECT(mnu), "menu_id");
 905     sp_repr_css_set_property(css, menu_id, marker);
 906
 907     // Also update the marker dropdown menus, so the document's markers
 908     // show up at the top of the menu
 909     ink_markers_menu_update(SP_WIDGET(spw));
 910
 911     Inkscape::Selection *selection = sp_desktop_selection(desktop);
 912     GSList const *items = selection->itemList();
 913     for (; items != NULL; items = items->next) {
 914          SPItem *item = (SPItem *) items->data;
 915          if (!SP_IS_SHAPE(item) || SP_IS_RECT(item)) // can't set marker to rect, until it's converted to using <path>
 916              continue;
 917          Inkscape::XML::Node *selrepr = SP_OBJECT_REPR((SPItem *) items->data);
 918          if (selrepr) {
 919              sp_repr_css_change_recursive(selrepr, css, "style");
 920          }
 921          SP_OBJECT(items->data)->requestModified(SP_OBJECT_MODIFIED_FLAG);
 922          SP_OBJECT(items->data)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
 923      }
 924
 925     sp_repr_css_attr_unref(css);
 926
 927     sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
 928                      _("Set markers"));
 929
 930 };
 931
 932 static int
 933 ink_marker_menu_get_pos(GtkMenu* mnu, gchar* markname) {
 934
 935     if (markname == NULL)
 936         markname = (gchar *) g_object_get_data(G_OBJECT(gtk_menu_get_active(mnu)), "marker");
 937
 938     if (markname == NULL)
 939         return 0;
 940
 941     GList *kids = GTK_MENU_SHELL(mnu)->children;
 942     int i = 0;
 943     for (; kids != NULL; kids = kids->next) {
 944         gchar *mark = (gchar *) g_object_get_data(G_OBJECT(kids->data), "marker");
 945         if ( mark && strcmp(mark, markname) == 0 ) {
 946             break;
 947         }
 948         i++;
 949     }
 950     return i;
 951 }
 952
 953 static void
 954 ink_markers_menu_update(SPWidget* spw) {
 955     SPDesktop  *desktop = inkscape_active_desktop();
 956     SPDocument *document = sp_desktop_document(desktop);
 957     SPDocument *sandbox = ink_markers_preview_doc ();
 958     GtkWidget  *m;
 959     int        pos;
 960
 961     gtk_signal_handler_block_by_func( GTK_OBJECT(marker_start_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 962     pos = ink_marker_menu_get_pos(GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(marker_start_menu))), NULL);
 963     m = gtk_menu_new();
 964     gtk_widget_show(m);
 965     ink_marker_menu_create_menu(m, "marker-start", document, sandbox);
 966     gtk_option_menu_remove_menu(GTK_OPTION_MENU(marker_start_menu));
 967     gtk_option_menu_set_menu(GTK_OPTION_MENU(marker_start_menu), m);
 968     gtk_option_menu_set_history(GTK_OPTION_MENU(marker_start_menu), pos);
 969     gtk_signal_handler_unblock_by_func( GTK_OBJECT(marker_start_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 970
 971     gtk_signal_handler_block_by_func( GTK_OBJECT(marker_mid_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 972     pos = ink_marker_menu_get_pos(GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(marker_mid_menu))), NULL);
 973     m = gtk_menu_new();
 974     gtk_widget_show(m);
 975     ink_marker_menu_create_menu(m, "marker-mid", document, sandbox);
 976     gtk_option_menu_remove_menu(GTK_OPTION_MENU(marker_mid_menu));
 977     gtk_option_menu_set_menu(GTK_OPTION_MENU(marker_mid_menu), m);
 978     gtk_option_menu_set_history(GTK_OPTION_MENU(marker_mid_menu), pos);
 979     gtk_signal_handler_unblock_by_func( GTK_OBJECT(marker_mid_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 980
 981     gtk_signal_handler_block_by_func( GTK_OBJECT(marker_end_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 982     pos = ink_marker_menu_get_pos(GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(marker_end_menu))), NULL);
 983     m = gtk_menu_new();
 984     gtk_widget_show(m);
 985     ink_marker_menu_create_menu(m, "marker-end", document, sandbox);
 986     gtk_option_menu_remove_menu(GTK_OPTION_MENU(marker_end_menu));
 987     gtk_option_menu_set_menu(GTK_OPTION_MENU(marker_end_menu), m);
 988     gtk_option_menu_set_history(GTK_OPTION_MENU(marker_end_menu), pos);
 989     gtk_signal_handler_unblock_by_func( GTK_OBJECT(marker_end_menu), GTK_SIGNAL_FUNC(sp_marker_select), spw);
 990 }
 991
 992 /**
 993  * Sets the stroke width units for all selected items.
 994  * Also handles absolute and dimensionless units.
 995  */
 996 static gboolean stroke_width_set_unit(SPUnitSelector *,
 997                                                  SPUnit const *old,
 998                                                  SPUnit const *new_units,
 999                                                  GObject *spw)
1000 {
1001     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1002
1003     if (!desktop) {
1004         return FALSE;
1005     }
1006
1007     Inkscape::Selection *selection = sp_desktop_selection (desktop);
1008
1009     if (selection->isEmpty())
1010         return FALSE;
1011
1012     GSList const *objects = selection->itemList();
1013
1014     if ((old->base == SP_UNIT_ABSOLUTE || old->base == SP_UNIT_DEVICE) &&
1015        (new_units->base == SP_UNIT_DIMENSIONLESS)) {
1016
1017         /* Absolute to percentage */
1018         g_object_set_data (spw, "update", GUINT_TO_POINTER (TRUE));
1019
1020         GtkAdjustment *a = GTK_ADJUSTMENT(g_object_get_data (spw, "width"));
1021         float w = sp_units_get_pixels (a->value, *old);
1022
1023         gdouble average = stroke_average_width (objects);
1024
1025         if (average == NR_HUGE || average == 0)
1026             return FALSE;
1027
1028         gtk_adjustment_set_value (a, 100.0 * w / average);
1029
1030         g_object_set_data (spw, "update", GUINT_TO_POINTER (FALSE));
1031         return TRUE;
1032
1033     } else if ((old->base == SP_UNIT_DIMENSIONLESS) &&
1034               (new_units->base == SP_UNIT_ABSOLUTE || new_units->base == SP_UNIT_DEVICE)) {
1035
1036         /* Percentage to absolute */
1037         g_object_set_data (spw, "update", GUINT_TO_POINTER (TRUE));
1038
1039         GtkAdjustment *a = GTK_ADJUSTMENT(g_object_get_data (spw, "width"));
1040
1041         gdouble average = stroke_average_width (objects);
1042
1043         gtk_adjustment_set_value (a, sp_pixels_get_units (0.01 * a->value * average, *new_units));
1044
1045         g_object_set_data (spw, "update", GUINT_TO_POINTER (FALSE));
1046         return TRUE;
1047     }
1048
1049     return FALSE;
1050 }
1051
1052
1053 /**
1054  * \brief  Creates a new widget for the line stroke style.
1055  *
1056  */
1057 GtkWidget *
1058 sp_stroke_style_line_widget_new(void)
1059 {
1060     GtkWidget *spw, *f, *t, *hb, *sb, *us, *tb, *ds;
1061     GtkObject *a;
1062
1063     GtkTooltips *tt = gtk_tooltips_new();
1064
1065     spw = sp_widget_new_global(INKSCAPE);
1066
1067     f = gtk_hbox_new (FALSE, 0);
1068     gtk_widget_show(f);
1069     gtk_container_add(GTK_CONTAINER(spw), f);
1070
1071     t = gtk_table_new(3, 6, FALSE);
1072     gtk_widget_show(t);
1073     gtk_container_set_border_width(GTK_CONTAINER(t), 4);
1074     gtk_table_set_row_spacings(GTK_TABLE(t), 4);
1075     gtk_container_add(GTK_CONTAINER(f), t);
1076     gtk_object_set_data(GTK_OBJECT(spw), "stroke", t);
1077
1078     gint i = 0;
1079
1080     /* Stroke width */
1081     spw_label(t, _("Width:"), 0, i);
1082
1083     hb = spw_hbox(t, 3, 1, i);
1084
1085 // TODO: when this is gtkmmified, use an Inkscape::UI::Widget::ScalarUnit instead of the separate
1086 // spinbutton and unit selector for stroke width. In sp_stroke_style_line_update, use
1087 // setHundredPercent to remember the aeraged width corresponding to 100%. Then the
1088 // stroke_width_set_unit will be removed (because ScalarUnit takes care of conversions itself), and
1089 // with it, the two remaining calls of stroke_average_width, allowing us to get rid of that
1090 // function in desktop-style.
1091
1092     a = gtk_adjustment_new(1.0, 0.0, 1000.0, 0.1, 10.0, 10.0);
1093     gtk_object_set_data(GTK_OBJECT(spw), "width", a);
1094     sb = gtk_spin_button_new(GTK_ADJUSTMENT(a), 0.1, 3);
1095     gtk_tooltips_set_tip(tt, sb, _("Stroke width"), NULL);
1096     gtk_widget_show(sb);
1097
1098     sp_dialog_defocus_on_enter(sb);
1099
1100     gtk_box_pack_start(GTK_BOX(hb), sb, FALSE, FALSE, 0);
1101     us = sp_unit_selector_new(SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE);
1102     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1103     if (desktop)
1104         sp_unit_selector_set_unit (SP_UNIT_SELECTOR(us), sp_desktop_namedview(desktop)->doc_units);
1105     sp_unit_selector_add_unit(SP_UNIT_SELECTOR(us), &sp_unit_get_by_id(SP_UNIT_PERCENT), 0);
1106     g_signal_connect ( G_OBJECT (us), "set_unit", G_CALLBACK (stroke_width_set_unit), spw );
1107     gtk_widget_show(us);
1108     sp_unit_selector_add_adjustment( SP_UNIT_SELECTOR(us), GTK_ADJUSTMENT(a) );
1109     gtk_box_pack_start(GTK_BOX(hb), us, FALSE, FALSE, 0);
1110     gtk_object_set_data(GTK_OBJECT(spw), "units", us);
1111
1112     gtk_signal_connect( GTK_OBJECT(a), "value_changed", GTK_SIGNAL_FUNC(sp_stroke_style_width_changed), spw );
1113     i++;
1114
1115     /* Join type */
1116     // TRANSLATORS: The line join style specifies the shape to be used at the
1117     //  corners of paths. It can be "miter", "round" or "bevel".
1118     spw_label(t, _("Join:"), 0, i);
1119
1120     hb = spw_hbox(t, 3, 1, i);
1121
1122     tb = NULL;
1123
1124     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_MITER,
1125                                 hb, spw, "join", "miter");
1126
1127     // TRANSLATORS: Miter join: joining lines with a sharp (pointed) corner.
1128     //  For an example, draw a triangle with a large stroke width and modify the
1129     //  "Join" option (in the Fill and Stroke dialog).
1130     gtk_tooltips_set_tip(tt, tb, _("Miter join"), NULL);
1131
1132     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_ROUND,
1133                                 hb, spw, "join", "round");
1134
1135     // TRANSLATORS: Round join: joining lines with a rounded corner.
1136     //  For an example, draw a triangle with a large stroke width and modify the
1137     //  "Join" option (in the Fill and Stroke dialog).
1138     gtk_tooltips_set_tip(tt, tb, _("Round join"), NULL);
1139
1140     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_JOIN_BEVEL,
1141                                 hb, spw, "join", "bevel");
1142
1143     // TRANSLATORS: Bevel join: joining lines with a blunted (flattened) corner.
1144     //  For an example, draw a triangle with a large stroke width and modify the
1145     //  "Join" option (in the Fill and Stroke dialog).
1146     gtk_tooltips_set_tip(tt, tb, _("Bevel join"), NULL);
1147
1148     i++;
1149
1150     /* Miterlimit  */
1151     // TRANSLATORS: Miter limit: only for "miter join", this limits the length
1152     //  of the sharp "spike" when the lines connect at too sharp an angle.
1153     // When two line segments meet at a sharp angle, a miter join results in a
1154     //  spike that extends well beyond the connection point. The purpose of the
1155     //  miter limit is to cut off such spikes (i.e. convert them into bevels)
1156     //  when they become too long.
1157     spw_label(t, _("Miter limit:"), 0, i);
1158
1159     hb = spw_hbox(t, 3, 1, i);
1160
1161     a = gtk_adjustment_new(4.0, 0.0, 100.0, 0.1, 10.0, 10.0);
1162     gtk_object_set_data(GTK_OBJECT(spw), "miterlimit", a);
1163
1164     sb = gtk_spin_button_new(GTK_ADJUSTMENT(a), 0.1, 2);
1165     gtk_tooltips_set_tip(tt, sb, _("Maximum length of the miter (in units of stroke width)"), NULL);
1166     gtk_widget_show(sb);
1167     gtk_object_set_data(GTK_OBJECT(spw), "miterlimit_sb", sb);
1168     sp_dialog_defocus_on_enter(sb);
1169
1170     gtk_box_pack_start(GTK_BOX(hb), sb, FALSE, FALSE, 0);
1171
1172     gtk_signal_connect( GTK_OBJECT(a), "value_changed",
1173                         GTK_SIGNAL_FUNC(sp_stroke_style_miterlimit_changed), spw );
1174     i++;
1175
1176     /* Cap type */
1177     // TRANSLATORS: cap type specifies the shape for the ends of lines
1178     spw_label(t, _("Cap:"), 0, i);
1179
1180     hb = spw_hbox(t, 3, 1, i);
1181
1182     tb = NULL;
1183
1184     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_BUTT,
1185                                 hb, spw, "cap", "butt");
1186
1187     // TRANSLATORS: Butt cap: the line shape does not extend beyond the end point
1188     //  of the line; the ends of the line are square
1189     gtk_tooltips_set_tip(tt, tb, _("Butt cap"), NULL);
1190
1191     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_ROUND,
1192                                 hb, spw, "cap", "round");
1193
1194     // TRANSLATORS: Round cap: the line shape extends beyond the end point of the
1195     //  line; the ends of the line are rounded
1196     gtk_tooltips_set_tip(tt, tb, _("Round cap"), NULL);
1197
1198     tb = sp_stroke_radio_button(tb, INKSCAPE_STOCK_CAP_SQUARE,
1199                                 hb, spw, "cap", "square");
1200
1201     // TRANSLATORS: Square cap: the line shape extends beyond the end point of the
1202     //  line; the ends of the line are square
1203     gtk_tooltips_set_tip(tt, tb, _("Square cap"), NULL);
1204
1205     i++;
1206
1207
1208     /* Dash */
1209     spw_label(t, _("Dashes:"), 0, i);
1210     ds = sp_dash_selector_new( inkscape_get_repr( INKSCAPE,
1211                                                   "palette.dashes") );
1212
1213     gtk_widget_show(ds);
1214     gtk_table_attach( GTK_TABLE(t), ds, 1, 4, i, i+1,
1215                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1216                       (GtkAttachOptions)0, 0, 0 );
1217     gtk_object_set_data(GTK_OBJECT(spw), "dash", ds);
1218     gtk_signal_connect( GTK_OBJECT(ds), "changed",
1219                         GTK_SIGNAL_FUNC(sp_stroke_style_line_dash_changed),
1220                         spw );
1221     i++;
1222
1223     /* Drop down marker selectors*/
1224
1225     // doing this here once, instead of for each preview, to speed things up
1226     SPDocument *sandbox = ink_markers_preview_doc ();
1227
1228     // TRANSLATORS: Path markers are an SVG feature that allows you to attach arbitrary shapes
1229     // (arrowheads, bullets, faces, whatever) to the start, end, or middle nodes of a path.
1230     spw_label(t, _("Start Markers:"), 0, i);
1231     marker_start_menu  = ink_marker_menu( spw ,"marker-start", sandbox);
1232     gtk_signal_connect( GTK_OBJECT(marker_start_menu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1233     gtk_widget_show(marker_start_menu);
1234     gtk_table_attach( GTK_TABLE(t), marker_start_menu, 1, 4, i, i+1,
1235                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1236                       (GtkAttachOptions)0, 0, 0 );
1237     gtk_object_set_data(GTK_OBJECT(spw), "start_mark_menu", marker_start_menu);
1238
1239     i++;
1240     spw_label(t, _("Mid Markers:"), 0, i);
1241     marker_mid_menu = ink_marker_menu( spw ,"marker-mid", sandbox);
1242     gtk_signal_connect( GTK_OBJECT(marker_mid_menu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1243     gtk_widget_show(marker_mid_menu);
1244     gtk_table_attach( GTK_TABLE(t), marker_mid_menu, 1, 4, i, i+1,
1245                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1246                       (GtkAttachOptions)0, 0, 0 );
1247     gtk_object_set_data(GTK_OBJECT(spw), "mid_mark_menu", marker_mid_menu);
1248
1249     i++;
1250     spw_label(t, _("End Markers:"), 0, i);
1251     marker_end_menu = ink_marker_menu( spw ,"marker-end", sandbox);
1252     gtk_signal_connect( GTK_OBJECT(marker_end_menu), "changed", GTK_SIGNAL_FUNC(sp_marker_select), spw );
1253     gtk_widget_show(marker_end_menu);
1254     gtk_table_attach( GTK_TABLE(t), marker_end_menu, 1, 4, i, i+1,
1255                       (GtkAttachOptions)( GTK_EXPAND | GTK_FILL ),
1256                       (GtkAttachOptions)0, 0, 0 );
1257     gtk_object_set_data(GTK_OBJECT(spw), "end_mark_menu", marker_end_menu);
1258
1259     i++;
1260
1261     gtk_signal_connect( GTK_OBJECT(spw), "construct",
1262                         GTK_SIGNAL_FUNC(sp_stroke_style_line_construct),
1263                         NULL );
1264     gtk_signal_connect( GTK_OBJECT(spw), "modify_selection",
1265                         GTK_SIGNAL_FUNC(sp_stroke_style_line_selection_modified),
1266                         NULL );
1267     gtk_signal_connect( GTK_OBJECT(spw), "change_selection",
1268                         GTK_SIGNAL_FUNC(sp_stroke_style_line_selection_changed),
1269                         NULL );
1270
1271     sp_stroke_style_line_update( SP_WIDGET(spw), desktop ? sp_desktop_selection(desktop) : NULL);
1272
1273     return spw;
1274 }
1275
1276
1277 /**
1278  * Callback for when the stroke style widget is called.  It causes
1279  * the stroke line style to be updated.
1280  */
1281 static void
1282 sp_stroke_style_line_construct(SPWidget *spw, gpointer data)
1283 {
1284
1285 #ifdef SP_SS_VERBOSE
1286     g_print( "Stroke style widget constructed: inkscape %p repr %p\n",
1287              spw->inkscape, spw->repr );
1288 #endif
1289     if (spw->inkscape) {
1290         sp_stroke_style_line_update(spw,
1291                                     ( SP_ACTIVE_DESKTOP
1292                                       ? sp_desktop_selection(SP_ACTIVE_DESKTOP)
1293                                       : NULL ));
1294     }
1295 }
1296
1297 /**
1298  * Callback for when stroke style widget is modified.
1299  * Triggers update action.
1300  */
1301 static void
1302 sp_stroke_style_line_selection_modified ( SPWidget *spw,
1303                                        Inkscape::Selection *selection,
1304                                        guint flags,
1305                                        gpointer data )
1306 {
1307     if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_PARENT_MODIFIED_FLAG)) {
1308         sp_stroke_style_line_update (spw, selection);
1309     }
1310
1311 }
1312
1313 /**
1314  * Callback for when stroke style widget is changed.
1315  * Triggers update action.
1316  */
1317 static void
1318 sp_stroke_style_line_selection_changed ( SPWidget *spw,
1319                                        Inkscape::Selection *selection,
1320                                        gpointer data )
1321 {
1322     sp_stroke_style_line_update (spw, selection);
1323 }
1324
1325
1326 /**
1327  * Sets selector widgets' dash style from an SPStyle object.
1328  */
1329 static void
1330 sp_dash_selector_set_from_style (GtkWidget *dsel, SPStyle *style)
1331 {
1332     if (style->stroke_dash.n_dash > 0) {
1333         double d[64];
1334         int len = MIN(style->stroke_dash.n_dash, 64);
1335         for (int i = 0; i < len; i++) {
1336             if (style->stroke_width.computed != 0)
1337                 d[i] = style->stroke_dash.dash[i] / style->stroke_width.computed;
1338             else
1339                 d[i] = style->stroke_dash.dash[i]; // is there a better thing to do for stroke_width==0?
1340         }
1341         sp_dash_selector_set_dash(SP_DASH_SELECTOR(dsel), len, d,
1342                style->stroke_width.computed != 0?
1343                     style->stroke_dash.offset / style->stroke_width.computed  :
1344                     style->stroke_dash.offset);
1345     } else {
1346         sp_dash_selector_set_dash(SP_DASH_SELECTOR(dsel), 0, NULL, 0.0);
1347     }
1348 }
1349
1350 /**
1351  * Sets the join type for a line, and updates the stroke style widget's buttons
1352  */
1353 static void
1354 sp_jointype_set (SPWidget *spw, unsigned const jointype)
1355 {
1356     GtkWidget *tb = NULL;
1357     switch (jointype) {
1358         case SP_STROKE_LINEJOIN_MITER:
1359             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_MITER));
1360             break;
1361         case SP_STROKE_LINEJOIN_ROUND:
1362             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_ROUND));
1363             break;
1364         case SP_STROKE_LINEJOIN_BEVEL:
1365             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_JOIN_BEVEL));
1366             break;
1367         default:
1368             break;
1369     }
1370     sp_stroke_style_set_join_buttons (spw, tb);
1371 }
1372
1373 /**
1374  * Sets the cap type for a line, and updates the stroke style widget's buttons
1375  */
1376 static void
1377 sp_captype_set (SPWidget *spw, unsigned const captype)
1378 {
1379     GtkWidget *tb = NULL;
1380     switch (captype) {
1381         case SP_STROKE_LINECAP_BUTT:
1382             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_BUTT));
1383             break;
1384         case SP_STROKE_LINECAP_ROUND:
1385             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_ROUND));
1386             break;
1387         case SP_STROKE_LINECAP_SQUARE:
1388             tb = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), INKSCAPE_STOCK_CAP_SQUARE));
1389             break;
1390         default:
1391             break;
1392     }
1393     sp_stroke_style_set_cap_buttons (spw, tb);
1394 }
1395
1396 /**
1397  * Callback for when stroke style widget is updated, including markers, cap type,
1398  * join type, etc.
1399  */
1400 static void
1401 sp_stroke_style_line_update(SPWidget *spw, Inkscape::Selection *sel)
1402 {
1403     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1404         return;
1405     }
1406
1407     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
1408
1409     GtkWidget *sset = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "stroke"));
1410     GtkObject *width = GTK_OBJECT(gtk_object_get_data(GTK_OBJECT(spw), "width"));
1411     GtkObject *ml = GTK_OBJECT(gtk_object_get_data(GTK_OBJECT(spw), "miterlimit"));
1412     GtkWidget *us = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "units"));
1413     GtkWidget *dsel = GTK_WIDGET(gtk_object_get_data(GTK_OBJECT(spw), "dash"));
1414
1415     // create temporary style
1416     SPStyle *query = sp_style_new ();
1417     // query into it
1418     int result_sw = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEWIDTH);
1419     int result_ml = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT);
1420     int result_cap = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKECAP);
1421     int result_join = sp_desktop_query_style (SP_ACTIVE_DESKTOP, query, QUERY_STYLE_PROPERTY_STROKEJOIN);
1422
1423     if (result_sw == QUERY_STYLE_NOTHING) {
1424         /* No objects stroked, set insensitive */
1425         gtk_widget_set_sensitive(sset, FALSE);
1426
1427         gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
1428         return;
1429     } else {
1430         gtk_widget_set_sensitive(sset, TRUE);
1431
1432         SPUnit const *unit = sp_unit_selector_get_unit(SP_UNIT_SELECTOR(us));
1433
1434         if (result_sw == QUERY_STYLE_MULTIPLE_AVERAGED) {
1435             sp_unit_selector_set_unit(SP_UNIT_SELECTOR(us), &sp_unit_get_by_id(SP_UNIT_PERCENT));
1436         } else {
1437             // same width, or only one object; no sense to keep percent, switch to absolute
1438             if (unit->base != SP_UNIT_ABSOLUTE && unit->base != SP_UNIT_DEVICE) {
1439                 sp_unit_selector_set_unit(SP_UNIT_SELECTOR(us), sp_desktop_namedview(SP_ACTIVE_DESKTOP)->doc_units);
1440             }
1441         }
1442
1443         unit = sp_unit_selector_get_unit (SP_UNIT_SELECTOR (us));
1444
1445         if (unit->base == SP_UNIT_ABSOLUTE || unit->base == SP_UNIT_DEVICE) {
1446             double avgwidth = sp_pixels_get_units (query->stroke_width.computed, *unit);
1447             gtk_adjustment_set_value(GTK_ADJUSTMENT(width), avgwidth);
1448         } else {
1449             gtk_adjustment_set_value(GTK_ADJUSTMENT(width), 100);
1450         }
1451     }
1452
1453     if (result_ml != QUERY_STYLE_NOTHING)
1454         gtk_adjustment_set_value(GTK_ADJUSTMENT(ml), query->stroke_miterlimit.value); // TODO: reflect averagedness?
1455
1456     if (result_join != QUERY_STYLE_MULTIPLE_DIFFERENT) {
1457         sp_jointype_set (spw, query->stroke_linejoin.value);
1458     } else {
1459         sp_stroke_style_set_join_buttons(spw, NULL);
1460     }
1461
1462     if (result_cap != QUERY_STYLE_MULTIPLE_DIFFERENT) {
1463         sp_captype_set (spw, query->stroke_linecap.value);
1464     } else {
1465         sp_stroke_style_set_cap_buttons(spw, NULL);
1466     }
1467
1468     g_free (query);
1469
1470     if (!sel || sel->isEmpty())
1471         return;
1472
1473     GSList const *objects = sel->itemList();
1474     SPObject * const object = SP_OBJECT(objects->data);
1475     SPStyle * const style = SP_OBJECT_STYLE(object);
1476
1477     /* Markers */
1478     sp_stroke_style_update_marker_menus(spw, objects); // FIXME: make this desktop query too
1479
1480     /* Dash */
1481     sp_dash_selector_set_from_style (dsel, style); // FIXME: make this desktop query too
1482
1483     gtk_widget_set_sensitive(sset, TRUE);
1484
1485     gtk_object_set_data(GTK_OBJECT(spw), "update",
1486                         GINT_TO_POINTER(FALSE));
1487 }
1488
1489 /**
1490  * Sets a line's dash properties in a CSS style object.
1491  */
1492 static void
1493 sp_stroke_style_set_scaled_dash(SPCSSAttr *css,
1494                                 int ndash, double *dash, double offset,
1495                                 double scale)
1496 {
1497     if (ndash > 0) {
1498         Inkscape::CSSOStringStream osarray;
1499         for (int i = 0; i < ndash; i++) {
1500             osarray << dash[i] * scale;
1501             if (i < (ndash - 1)) {
1502                 osarray << ",";
1503             }
1504         }
1505         sp_repr_css_set_property(css, "stroke-dasharray", osarray.str().c_str());
1506
1507         Inkscape::CSSOStringStream osoffset;
1508         osoffset << offset * scale;
1509         sp_repr_css_set_property(css, "stroke-dashoffset", osoffset.str().c_str());
1510     } else {
1511         sp_repr_css_set_property(css, "stroke-dasharray", "none");
1512         sp_repr_css_set_property(css, "stroke-dashoffset", NULL);
1513     }
1514 }
1515
1516 /**
1517  * Sets line properties like width, dashes, markers, etc. on all currently selected items.
1518  */
1519 static void
1520 sp_stroke_style_scale_line(SPWidget *spw)
1521 {
1522     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1523         return;
1524     }
1525
1526     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(TRUE));
1527
1528     GtkAdjustment *wadj = GTK_ADJUSTMENT(gtk_object_get_data(GTK_OBJECT(spw), "width"));
1529     SPUnitSelector *us = SP_UNIT_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "units"));
1530     SPDashSelector *dsel = SP_DASH_SELECTOR(gtk_object_get_data(GTK_OBJECT(spw), "dash"));
1531     GtkAdjustment *ml = GTK_ADJUSTMENT(gtk_object_get_data(GTK_OBJECT(spw), "miterlimit"));
1532
1533     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1534     SPDocument *document = sp_desktop_document (desktop);
1535     Inkscape::Selection *selection = sp_desktop_selection (desktop);
1536
1537     GSList const *items = selection->itemList();
1538
1539     /* TODO: Create some standardized method */
1540     SPCSSAttr *css = sp_repr_css_attr_new();
1541
1542     if (items) {
1543
1544         double width_typed = wadj->value;
1545         double const miterlimit = ml->value;
1546
1547         SPUnit const *const unit = sp_unit_selector_get_unit(SP_UNIT_SELECTOR(us));
1548
1549         double *dash, offset;
1550         int ndash;
1551         sp_dash_selector_get_dash(dsel, &ndash, &dash, &offset);
1552
1553         for (GSList const *i = items; i != NULL; i = i->next) {
1554             /* Set stroke width */
1555             double width;
1556             if (unit->base == SP_UNIT_ABSOLUTE || unit->base == SP_UNIT_DEVICE) {
1557                 width = sp_units_get_pixels (width_typed, *unit);
1558             } else { // percentage
1559                 gdouble old_w = SP_OBJECT_STYLE (i->data)->stroke_width.computed;
1560                 width = old_w * width_typed / 100;
1561             }
1562
1563             {
1564                 Inkscape::CSSOStringStream os_width;
1565                 os_width << width;
1566                 sp_repr_css_set_property(css, "stroke-width", os_width.str().c_str());
1567             }
1568
1569             {
1570                 Inkscape::CSSOStringStream os_ml;
1571                 os_ml << miterlimit;
1572                 sp_repr_css_set_property(css, "stroke-miterlimit", os_ml.str().c_str());
1573             }
1574
1575             /* Set dash */
1576             sp_stroke_style_set_scaled_dash(css, ndash, dash, offset, width);
1577
1578             sp_desktop_apply_css_recursive (SP_OBJECT(i->data), css, true);
1579         }
1580
1581         g_free(dash);
1582
1583         if (unit->base != SP_UNIT_ABSOLUTE && unit->base != SP_UNIT_DEVICE) {
1584             // reset to 100 percent
1585             gtk_adjustment_set_value (wadj, 100.0);
1586         }
1587
1588     }
1589
1590     // we have already changed the items, so set style without changing selection
1591     // FIXME: move the above stroke-setting stuff, including percentages, to desktop-style
1592     sp_desktop_set_style (desktop, css, false);
1593
1594     sp_repr_css_attr_unref(css);
1595
1596     sp_document_done(document, SP_VERB_DIALOG_FILL_STROKE,
1597                      _("Set stroke style"));
1598
1599     gtk_object_set_data(GTK_OBJECT(spw), "update", GINT_TO_POINTER(FALSE));
1600 }
1601
1602
1603 /**
1604  * Callback for when the stroke style's width changes.
1605  * Causes all line styles to be applied to all selected items.
1606  */
1607 static void
1608 sp_stroke_style_width_changed(GtkAdjustment *adj, SPWidget *spw)
1609 {
1610     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1611         return;
1612     }
1613
1614     sp_stroke_style_scale_line(spw);
1615 }
1616
1617 /**
1618  * Callback for when the stroke style's miterlimit changes.
1619  * Causes all line styles to be applied to all selected items.
1620  */
1621 static void
1622 sp_stroke_style_miterlimit_changed(GtkAdjustment *adj, SPWidget *spw)
1623 {
1624     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1625         return;
1626     }
1627
1628     sp_stroke_style_scale_line(spw);
1629 }
1630
1631 /**
1632  * Callback for when the stroke style's dash changes.
1633  * Causes all line styles to be applied to all selected items.
1634  */
1635 static void
1636 sp_stroke_style_line_dash_changed(SPDashSelector *dsel, SPWidget *spw)
1637 {
1638     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1639         return;
1640     }
1641
1642     sp_stroke_style_scale_line(spw);
1643 }
1644
1645
1646
1647 /**
1648  * \brief  This routine handles toggle events for buttons in the stroke style
1649  *         dialog.
1650  * When activated, this routine gets the data for the various widgets, and then
1651  * calls the respective routines to update css properties, etc.
1652  *
1653  */
1654 static void
1655 sp_stroke_style_any_toggled(GtkToggleButton *tb, SPWidget *spw)
1656 {
1657     if (gtk_object_get_data(GTK_OBJECT(spw), "update")) {
1658         return;
1659     }
1660
1661     if (gtk_toggle_button_get_active(tb)) {
1662
1663         gchar const *join
1664             = static_cast<gchar const *>(gtk_object_get_data(GTK_OBJECT(tb), "join"));
1665         gchar const *cap
1666             = static_cast<gchar const *>(gtk_object_get_data(GTK_OBJECT(tb), "cap"));
1667
1668         if (join) {
1669             GtkWidget *ml = GTK_WIDGET(g_object_get_data(G_OBJECT(spw), "miterlimit_sb"));
1670             gtk_widget_set_sensitive (ml, !strcmp(join, "miter"));
1671         }
1672
1673         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1674
1675         /* TODO: Create some standardized method */
1676         SPCSSAttr *css = sp_repr_css_attr_new();
1677
1678         if (join) {
1679             sp_repr_css_set_property(css, "stroke-linejoin", join);
1680
1681             sp_desktop_set_style (desktop, css);
1682
1683             sp_stroke_style_set_join_buttons(spw, GTK_WIDGET(tb));
1684         } else if (cap) {
1685             sp_repr_css_set_property(css, "stroke-linecap", cap);
1686
1687             sp_desktop_set_style (desktop, css);
1688
1689             sp_stroke_style_set_cap_buttons(spw, GTK_WIDGET(tb));
1690         }
1691
1692         sp_repr_css_attr_unref(css);
1693
1694         sp_document_done(sp_desktop_document(desktop), SP_VERB_DIALOG_FILL_STROKE,
1695                          _("Set stroke style"));
1696     }
1697 }
1698
1699
1700 /**
1701  * Updates the join style toggle buttons
1702  */
1703 static void
1704 sp_stroke_style_set_join_buttons(SPWidget *spw, GtkWidget *active)
1705 {
1706     GtkWidget *tb;
1707
1708     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1709                                          INKSCAPE_STOCK_JOIN_MITER) );
1710     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1711
1712     GtkWidget *ml = GTK_WIDGET(g_object_get_data(G_OBJECT(spw), "miterlimit_sb"));
1713     gtk_widget_set_sensitive(ml, (active == tb));
1714
1715     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1716                                          INKSCAPE_STOCK_JOIN_ROUND) );
1717     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1718     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1719                                          INKSCAPE_STOCK_JOIN_BEVEL) );
1720     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1721 }
1722
1723
1724
1725 /**
1726  * Updates the cap style toggle buttons
1727  */
1728 static void
1729 sp_stroke_style_set_cap_buttons(SPWidget *spw, GtkWidget *active)
1730 {
1731     GtkWidget *tb;
1732
1733     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1734                                          INKSCAPE_STOCK_CAP_BUTT));
1735     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1736     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1737                                          INKSCAPE_STOCK_CAP_ROUND) );
1738     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1739     tb = GTK_WIDGET(gtk_object_get_data( GTK_OBJECT(spw),
1740                                          INKSCAPE_STOCK_CAP_SQUARE) );
1741     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(tb), (active == tb));
1742 }
1743
1744 /**
1745  * Sets the current marker in the marker menu.
1746  */
1747 static void
1748 ink_marker_menu_set_current(SPObject *marker, GtkOptionMenu *mnu)
1749 {
1750     gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(TRUE));
1751
1752     GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu(mnu));
1753     if (marker != NULL) {
1754         bool mark_is_stock = false;
1755         if (SP_OBJECT_REPR(marker)->attribute("inkscape:stockid"))
1756             mark_is_stock = true;
1757
1758         gchar *markname;
1759         if (mark_is_stock)
1760             markname = g_strdup(SP_OBJECT_REPR(marker)->attribute("inkscape:stockid"));
1761         else
1762             markname = g_strdup(SP_OBJECT_REPR(marker)->attribute("id"));
1763
1764         int markpos = ink_marker_menu_get_pos(m, markname);
1765         gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), markpos);
1766
1767         g_free (markname);
1768     }
1769     else {
1770         gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
1771     }
1772     gtk_object_set_data(GTK_OBJECT(mnu), "update", GINT_TO_POINTER(FALSE));
1773 }
1774
1775 /**
1776  * Updates the marker menus to highlight the appropriate marker and scroll to
1777  * that marker.
1778  */
1779 static void
1780 sp_stroke_style_update_marker_menus( SPWidget *spw,
1781                                      GSList const *objects)
1782 {
1783     struct { char const *key; int loc; } const keyloc[] = {
1784         { "start_mark_menu", SP_MARKER_LOC_START },
1785         { "mid_mark_menu", SP_MARKER_LOC_MID },
1786         { "end_mark_menu", SP_MARKER_LOC_END }
1787     };
1788
1789     bool all_texts = true;
1790     for (GSList *i = (GSList *) objects; i != NULL; i = i->next) {
1791         if (!SP_IS_TEXT (i->data)) {
1792             all_texts = false;
1793         }
1794     }
1795
1796     for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
1797         GtkOptionMenu *mnu = (GtkOptionMenu *) g_object_get_data(G_OBJECT(spw), keyloc[i].key);
1798         if (all_texts) {
1799             // Per SVG spec, text objects cannot have markers; disable menus if only texts are selected
1800             gtk_widget_set_sensitive (GTK_WIDGET(mnu), FALSE);
1801         } else {
1802             gtk_widget_set_sensitive (GTK_WIDGET(mnu), TRUE);
1803         }
1804     }
1805
1806     // We show markers of the first object in the list only
1807     // FIXME: use the first in the list that has the marker of each type, if any
1808     SPObject *object = SP_OBJECT(objects->data);
1809
1810     for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
1811         // For all three marker types,
1812
1813         // find the corresponding menu
1814         GtkOptionMenu *mnu = (GtkOptionMenu *) g_object_get_data(G_OBJECT(spw), keyloc[i].key);
1815
1816         // Quit if we're in update state
1817         if (gtk_object_get_data(GTK_OBJECT(mnu), "update")) {
1818             return;
1819         }
1820
1821         if (object->style->marker[keyloc[i].loc].value != NULL && !all_texts) {
1822             // If the object has this type of markers,
1823
1824             // Extract the name of the marker that the object uses
1825             SPObject *marker = ink_extract_marker_name(object->style->marker[keyloc[i].loc].value);
1826             // Scroll the menu to that marker
1827             ink_marker_menu_set_current (marker, mnu);
1828
1829         } else {
1830             gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
1831         }
1832     }
1833 }
1834
1835
1836 /**
1837  * Extract the actual name of the link
1838  * e.g. get mTriangle from url(#mTriangle).
1839  * \return Buffer containing the actual name, allocated from GLib;
1840  * the caller should free the buffer when they no longer need it.
1841  */
1842 static SPObject*
1843 ink_extract_marker_name(gchar const *n)
1844 {
1845     gchar const *p = n;
1846     while (*p != '\0' && *p != '#') {
1847         p++;
1848     }
1849
1850     if (*p == '\0' || p[1] == '\0') {
1851         return NULL;
1852     }
1853
1854     p++;
1855     int c = 0;
1856     while (p[c] != '\0' && p[c] != ')') {
1857         c++;
1858     }
1859
1860     if (p[c] == '\0') {
1861         return NULL;
1862     }
1863
1864     gchar* b = g_strdup(p);
1865     b[c] = '\0';
1866
1867
1868     SPDesktop *desktop = inkscape_active_desktop();
1869     SPDocument *doc = sp_desktop_document(desktop);
1870     SPObject *marker = doc->getObjectById(b);
1871     return marker;
1872 }
1873
1874
1875 /*
1876   Local Variables:
1877   mode:c++
1878   c-file-style:"stroustrup"
1879   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1880   indent-tabs-mode:nil
1881   fill-column:99
1882   End:
1883 */
1884 // vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :