src/ui/dialog/document-properties.cpp

   1 /** \file
   2  *
   3  * Document properties dialog, Gtkmm-style
   4  *
   5  * Authors:
   6  *   bulia byak <buliabyak@users.sf.net>
   7  *   Bryce W. Harrington <bryce@bryceharrington.org>
   8  *   Lauris Kaplinski <lauris@kaplinski.com>
   9  *   Jon Phillips <jon@rejon.org>
  10  *   Ralf Stephan <ralf@ark.in-berlin.de> (Gtkmm)
  11  *
  12  * Copyright (C) 2006-2007 Johan Engelen  <johan@shouraizou.nl>
  13  * Copyright (C) 2000 - 2005 Authors
  14  *
  15  * Released under GNU GPL.  Read the file 'COPYING' for more information
  16  */
  17
  18 #ifdef HAVE_CONFIG_H
  19 # include <config.h>
  20 #endif
  21
  22
  23
  24 #include <gtkmm.h>
  25 #include "ui/widget/color-picker.h"
  26 #include "ui/widget/scalar-unit.h"
  27
  28 #include "xml/node-event-vector.h"
  29 #include "helper/units.h"
  30 #include "prefs-utils.h"
  31
  32 #include "inkscape.h"
  33 #include "verbs.h"
  34 #include "document.h"
  35 #include "desktop-handles.h"
  36 #include "desktop.h"
  37 #include "sp-namedview.h"
  38
  39 #include "document-properties.h"
  40
  41 #include "display/canvas-grid.h"
  42
  43 using std::pair;
  44
  45 namespace Inkscape {
  46 namespace UI {
  47 namespace Dialog {
  48
  49 #define SPACE_SIZE_X 15
  50 #define SPACE_SIZE_Y 10
  51
  52 //===================================================
  53
  54 //---------------------------------------------------
  55
  56 static DocumentProperties *_instance = 0;
  57
  58 static void on_child_added(Inkscape::XML::Node *repr, Inkscape::XML::Node *child, Inkscape::XML::Node *ref, void * data);
  59 static void on_child_removed(Inkscape::XML::Node *repr, Inkscape::XML::Node *child, Inkscape::XML::Node *ref, void * data);
  60 static void on_repr_attr_changed (Inkscape::XML::Node *, gchar const *, gchar const *, gchar const *, bool, gpointer);
  61 static void on_doc_replaced (SPDesktop* dt, SPDocument* doc);
  62 static void on_activate_desktop (Inkscape::Application *, SPDesktop* dt, void*);
  63 static void on_deactivate_desktop (Inkscape::Application *, SPDesktop* dt, void*);
  64
  65 static Inkscape::XML::NodeEventVector const _repr_events = {
  66     on_child_added, /* child_added */
  67     on_child_removed, /* child_removed */
  68     on_repr_attr_changed,
  69     NULL, /* content_changed */
  70     NULL  /* order_changed */
  71 };
  72
  73
  74 DocumentProperties &
  75 DocumentProperties::getInstance()
  76 {
  77     if (_instance) return *_instance;
  78     _instance = new DocumentProperties();
  79     _instance->init();
  80     return *_instance;
  81 }
  82
  83 void
  84 DocumentProperties::destroy()
  85 {
  86     if (_instance)
  87     {
  88         delete _instance;
  89         _instance = 0;
  90     }
  91 }
  92
  93 DocumentProperties::DocumentProperties()
  94     : UI::Widget::Panel ("", "dialogs.documentoptions", SP_VERB_DIALOG_NAMEDVIEW),
  95       _page_page(1, 1), _page_guides(1, 1),
  96       _page_snap(1, 1), _page_snap_dtls(1, 1), _page_grids(1, 1),
  97       _grids_button_new(_("_New"), _("Create new grid.")),
  98       _grids_button_remove(_("_Remove"), _("Remove selected grid.")),
  99       _prefs_path("dialogs.documentoptions")
 100 {
 101     _tt.enable();
 102     _getContents()->set_spacing (4);
 103     _getContents()->pack_start(_notebook, true, true);
 104
 105     _notebook.append_page(_page_page,      _("Page"));
 106     _notebook.append_page(_page_guides,    _("Guides"));
 107     _notebook.append_page(_page_grids,     _("Grids"));
 108     _notebook.append_page(_page_snap,      _("Snap"));
 109     _notebook.append_page(_page_snap_dtls, _("Snap details"));
 110
 111     build_page();
 112     build_guides();
 113     build_gridspage();
 114     build_snap();
 115     build_snap_dtls();
 116
 117     _grids_button_new.signal_clicked().connect(sigc::mem_fun(*this, &DocumentProperties::onNewGrid));
 118     _grids_button_remove.signal_clicked().connect(sigc::mem_fun(*this, &DocumentProperties::onRemoveGrid));
 119 }
 120
 121 void
 122 DocumentProperties::init()
 123 {
 124     update();
 125
 126     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(SP_ACTIVE_DESKTOP));
 127     repr->addListener (&_repr_events, this);
 128     Inkscape::XML::Node *root = SP_OBJECT_REPR(sp_desktop_document(SP_ACTIVE_DESKTOP)->root);
 129     root->addListener (&_repr_events, this);
 130
 131     _doc_replaced_connection = SP_ACTIVE_DESKTOP->connectDocumentReplaced (sigc::ptr_fun (on_doc_replaced));
 132
 133     g_signal_connect(G_OBJECT(INKSCAPE), "activate_desktop",
 134                      G_CALLBACK(on_activate_desktop), 0);
 135
 136     g_signal_connect(G_OBJECT(INKSCAPE), "deactivate_desktop",
 137                      G_CALLBACK(on_deactivate_desktop), 0);
 138
 139     show_all_children();
 140 }
 141
 142 DocumentProperties::~DocumentProperties()
 143 {
 144     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(SP_ACTIVE_DESKTOP));
 145     repr->removeListenerByData (this);
 146     Inkscape::XML::Node *root = SP_OBJECT_REPR(sp_desktop_document(SP_ACTIVE_DESKTOP)->root);
 147     root->removeListenerByData (this);
 148     _doc_replaced_connection.disconnect();
 149 }
 150
 151 //========================================================================
 152
 153 /**
 154  * Helper function that attaches widgets in a 3xn table. The widgets come in an
 155  * array that has two entries per table row. The two entries code for four
 156  * possible cases: (0,0) means insert space in first column; (0, non-0) means
 157  * widget in columns 2-3; (non-0, 0) means label in columns 1-3; and
 158  * (non-0, non-0) means two widgets in columns 2 and 3.
 159 **/
 160 inline void
 161 attach_all(Gtk::Table &table, Gtk::Widget *const arr[], unsigned const n, int start = 0)
 162 {
 163     for (unsigned i = 0, r = start; i < n; i += 2)
 164     {
 165         if (arr[i] && arr[i+1])
 166         {
 167             table.attach(*arr[i],   1, 2, r, r+1,
 168                       Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
 169             table.attach(*arr[i+1], 2, 3, r, r+1,
 170                       Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
 171         }
 172         else
 173         {
 174             if (arr[i+1])
 175                 table.attach(*arr[i+1], 1, 3, r, r+1,
 176                       Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
 177             else if (arr[i])
 178             {
 179                 Gtk::Label& label = reinterpret_cast<Gtk::Label&>(*arr[i]);
 180                 label.set_alignment (0.0);
 181                 table.attach (label, 0, 3, r, r+1,
 182                       Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
 183             }
 184             else
 185             {
 186                 Gtk::HBox *space = manage (new Gtk::HBox);
 187                 space->set_size_request (SPACE_SIZE_X, SPACE_SIZE_Y);
 188                 table.attach (*space, 0, 1, r, r+1,
 189                       (Gtk::AttachOptions)0, (Gtk::AttachOptions)0,0,0);
 190             }
 191         }
 192         ++r;
 193     }
 194 }
 195
 196 void
 197 DocumentProperties::build_page()
 198 {
 199     _page_page.show();
 200
 201     _rcp_bg.init (_("Back_ground:"), _("Background color"), _("Color and transparency of the page background (also used for bitmap export)"),
 202                    "pagecolor", "inkscape:pageopacity", _wr);
 203     _rcb_canb.init (_("Show page _border"), _("If set, rectangular page border is shown"), "showborder", _wr, false);
 204     _rcb_bord.init (_("Border on _top of drawing"), _("If set, border is always on top of the drawing"), "borderlayer", _wr, false);
 205     _rcp_bord.init (_("Border _color:"), _("Page border color"),
 206                     _("Color of the page border"),
 207                     "bordercolor", "borderopacity", _wr);
 208     _rcb_shad.init (_("_Show border shadow"), _("If set, page border shows a shadow on its right and lower side"), "inkscape:showpageshadow", _wr, false);
 209     _rum_deflt.init (_("Default _units:"), "inkscape:document-units", _wr);
 210
 211     Gtk::Label* label_gen = manage (new Gtk::Label);
 212     label_gen->set_markup (_("<b>General</b>"));
 213     Gtk::Label* label_bor = manage (new Gtk::Label);
 214     label_bor->set_markup (_("<b>Border</b>"));
 215     Gtk::Label *label_for = manage (new Gtk::Label);
 216     label_for->set_markup (_("<b>Format</b>"));
 217     _page_sizer.init (_wr);
 218
 219     Gtk::Widget *const widget_array[] =
 220     {
 221         label_gen,         0,
 222         _rum_deflt._label, _rum_deflt._sel,
 223         _rcp_bg._label,    _rcp_bg._cp,
 224         0,                 0,
 225         label_for,         0,
 226         0,                 &_page_sizer,
 227         0,                 0,
 228         label_bor,         0,
 229         0,                 _rcb_canb._button,
 230         0,                 _rcb_bord._button,
 231         0,                 _rcb_shad._button,
 232         _rcp_bord._label,  _rcp_bord._cp,
 233     };
 234
 235     attach_all(_page_page.table(), widget_array, G_N_ELEMENTS(widget_array));
 236 }
 237
 238 void
 239 DocumentProperties::build_guides()
 240 {
 241     _page_guides.show();
 242
 243     _rcb_sgui.init (_("Show _guides"), _("Show or hide guides"), "showguides", _wr);
 244     _rcp_gui.init (_("Guide co_lor:"), _("Guideline color"),
 245                    _("Color of guidelines"), "guidecolor", "guideopacity", _wr);
 246     _rcp_hgui.init (_("_Highlight color:"), _("Highlighted guideline color"),
 247                     _("Color of a guideline when it is under mouse"),
 248                     "guidehicolor", "guidehiopacity", _wr);
 249     Gtk::Label *label_gui = manage (new Gtk::Label);
 250     label_gui->set_markup (_("<b>Guides</b>"));
 251
 252     Gtk::Widget *const widget_array[] =
 253     {
 254         label_gui,       0,
 255         0,               _rcb_sgui._button,
 256         _rcp_gui._label, _rcp_gui._cp,
 257         _rcp_hgui._label, _rcp_hgui._cp,
 258     };
 259
 260     attach_all(_page_guides.table(), widget_array, G_N_ELEMENTS(widget_array));
 261 }
 262
 263 void
 264 DocumentProperties::build_snap()
 265 {
 266     _page_snap.show();
 267         //General options
 268         _rcbsnbb.init (_("_Bounding box corners"),
 269                 _("Snap bounding box corners to grid lines, to guides, and to other bounding boxes (Snapping of bounding boxes is only available in the selector tool)"),
 270                 "inkscape:snap-bbox", _wr);
 271     _rcbsnn.init (_("_Nodes"),
 272                 _("Snap nodes to grid lines, to guides, to paths, and to other nodes"),
 273                 "inkscape:snap-nodes", _wr);
 274
 275     //Options for snapping to objects
 276     _rcbsnop.init (_("Snap to pat_hs"),
 277                 _("Snap nodes to object paths"),
 278                 "inkscape:object-paths", _wr);
 279     _rcbsnon.init (_("Snap to n_odes"),
 280                 _("Snap nodes and guides to object nodes"),
 281                 "inkscape:object-nodes", _wr);
 282     _rcbsnbbn.init (_("Snap to bounding box co_rners"),
 283                 _("Snap bounding box corners to other bounding box corners"),
 284                 "inkscape:bbox-nodes", _wr);
 285     _rcbsnbbp.init (_("Snap to bounding box _edges"),
 286                 _("Snap bounding box corners and guides to bounding box edges"),
 287                 "inkscape:bbox-paths", _wr);
 288
 289     _rsu_sno.init (_("Snap _distance"), _("Snap at any d_istance"),
 290                   _("Snapping distance, in screen pixels, for snapping to objects"),
 291                   _("If set, objects snap to the nearest object, regardless of distance"),
 292                   "objecttolerance", _wr);
 293
 294     //Options for snapping to grids
 295     _rsu_sn.init (_("Snap di_stance"), _("Snap at any dis_tance"),
 296                   _("Snapping distance, in screen pixels, for snapping to grid"),
 297                   _("If set, objects snap to the nearest grid line, regardless of distance"),
 298                   "gridtolerance", _wr);
 299
 300         //Options for snapping to guides
 301     _rsu_gusn.init (_("Snap dist_ance"), _("Snap at any distan_ce"),
 302                 _("Snapping distance, in screen pixels, for snapping to guides"),
 303                 _("If set, objects snap to the nearest guide, regardless of distance"),
 304                 "guidetolerance", _wr);
 305
 306     //Other options to locate here: e.g. visual snapping indicators on/off
 307
 308     std::list<Gtk::ToggleButton*> slaves;
 309     slaves.push_back(_rcbsnop._button);
 310     slaves.push_back(_rcbsnon._button);
 311     _rcbsnn.setSlaveButton(slaves);
 312
 313     slaves.clear();
 314     slaves.push_back(_rcbsnbbp._button);
 315     slaves.push_back(_rcbsnbbn._button);
 316     _rcbsnbb.setSlaveButton(slaves);
 317
 318     Gtk::Label *label_g = manage (new Gtk::Label);
 319     label_g->set_markup (_("<b>Snapping of</b>"));
 320     Gtk::Label *label_o = manage (new Gtk::Label);
 321     label_o->set_markup (_("<b>Snapping to objects</b>"));
 322     Gtk::Label *label_gr = manage (new Gtk::Label);
 323     label_gr->set_markup (_("<b>Snapping to grids</b>"));
 324     Gtk::Label *label_gu = manage (new Gtk::Label);
 325     label_gu->set_markup (_("<b>Snapping to guides</b>"));
 326     Gtk::Label *label_m = manage (new Gtk::Label);
 327     label_m->set_markup (_("<b>Miscellaneous</b>"));
 328
 329     Gtk::Widget *const array[] =
 330     {
 331         label_g,            0,
 332         0,                  _rcbsnn._button,
 333         0,                  _rcbsnbb._button,
 334         0,                                      0,
 335         0,                  0,
 336         0,                                      0,
 337         0,                                      0,
 338         label_o,            0,
 339         0,                                      _rcbsnop._button,
 340         0,                                      _rcbsnon._button,
 341         0,                  _rcbsnbbp._button,
 342         0,                  _rcbsnbbn._button,
 343         0,                  _rsu_sno._vbox,
 344         0,                                      0,
 345         label_gr,           0,
 346         0,                  _rsu_sn._vbox,
 347         0,                                      0,
 348         label_gu,               0,
 349         0,                      _rsu_gusn._vbox
 350     };
 351
 352     attach_all(_page_snap.table(), array, G_N_ELEMENTS(array));
 353  }
 354
 355 void
 356 DocumentProperties::build_snap_dtls()
 357 {
 358     _page_snap_dtls.show();
 359
 360         _rcbsigg.init (_("_Grid with guides"),
 361                 _("Snap to grid-guide intersections"),
 362                 "inkscape:snap-intersection-grid-guide", _wr);
 363
 364         _rcbsils.init (_("_Line segments"),
 365                 _("Snap to intersections of line segments ('snap to paths' must be enabled, see the previous tab)"),
 366                 "inkscape:snap-intersection-line-segments", _wr);
 367
 368     _rcbsng.init (_("_Snap guides while dragging"),
 369                 _("While dragging a guide, snap to object nodes or bounding box corners ('snap to nodes' or 'snap to bounding box corners', both on the previous tab, must be enabled)"),
 370                 "inkscape:snap-guide", _wr);
 371
 372     //Applies to both nodes and guides, but not to bboxes, that's why its located here
 373     _rcbic.init (_("_Include the object's rotation center"),
 374                 _("Also snap the rotation center of an object when snapping nodes or guides"),
 375                 "inkscape:snap-center", _wr);
 376
 377     //Other options to locate here: e.g. visual snapping indicators on/off
 378
 379     Gtk::Label *label_i= manage (new Gtk::Label);
 380     label_i->set_markup (_("<b>Snapping to intersections of</b>"));
 381     Gtk::Label *label_m = manage (new Gtk::Label);
 382     label_m->set_markup (_("<b>Miscellaneous</b>"));
 383
 384     Gtk::Widget *const array[] =
 385     {
 386         label_i,            0,
 387         0,                  _rcbsigg._button,
 388         0,                  _rcbsils._button,
 389         0,                  0,
 390         label_m,            0,
 391         0,                  _rcbsng._button,
 392         0,                  _rcbic._button,
 393     };
 394
 395     attach_all(_page_snap_dtls.table(), array, G_N_ELEMENTS(array));
 396 }
 397
 398 /**
 399 * Called for _updating_ the dialog (e.g. when a new grid was manually added in XML)
 400 */
 401 void
 402 DocumentProperties::update_gridspage()
 403 {
 404     SPDesktop *dt = SP_ACTIVE_DESKTOP;
 405     SPNamedView *nv = sp_desktop_namedview(dt);
 406
 407     //remove all tabs
 408     while (_grids_notebook.get_current_page() != -1) {
 409         _grids_notebook.remove_page(-1);
 410     }
 411
 412     //add tabs
 413     for (GSList const * l = nv->grids; l != NULL; l = l->next) {
 414         Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
 415         _grids_notebook.append_page(grid->getWidget(), grid->repr->attribute("id"));
 416
 417     }
 418     _grids_notebook.show_all();
 419
 420     _page_grids.table().resize_children();
 421 }
 422
 423 /**
 424  * Build grid page of dialog.
 425  */
 426 void
 427 DocumentProperties::build_gridspage()
 428 {
 429     _page_grids.show();
 430
 431     /// \todo FIXME: gray out snapping when grid is off.
 432     /// Dissenting view: you want snapping without grid.
 433
 434     SPDesktop *dt = SP_ACTIVE_DESKTOP;
 435     SPNamedView *nv = sp_desktop_namedview(dt);
 436
 437     Gtk::Label* label_crea = manage (new Gtk::Label);
 438     label_crea->set_markup (_("<b>Creation</b>"));
 439     Gtk::Label* label_crea_type = manage (new Gtk::Label);
 440     label_crea_type->set_markup (_("Gridtype"));
 441
 442     for (gint t = 0; t <= GRID_MAXTYPENR; t++) {
 443         _grids_combo_gridtype.append_text( CanvasGrid::getName( (GridType) t ) );
 444     }
 445     _grids_combo_gridtype.set_active_text( CanvasGrid::getName(GRID_RECTANGULAR) );
 446
 447     Gtk::Label* label_def = manage (new Gtk::Label);
 448     label_def->set_markup (_("<b>Defined grids</b>"));
 449
 450     for (GSList const * l = nv->grids; l != NULL; l = l->next) {
 451         Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
 452         _grids_notebook.append_page(grid->getWidget(), grid->repr->attribute("id"));
 453     }
 454
 455     Gtk::Widget *const widget_array[] =
 456     {
 457         label_crea, 0,
 458         label_crea_type, (Gtk::Widget*) &_grids_combo_gridtype,
 459         (Gtk::Widget*) &_grids_button_new,         (Gtk::Widget*) &_grids_button_remove,
 460         label_def,         0
 461     };
 462     attach_all(_page_grids.table(), widget_array, G_N_ELEMENTS(widget_array));
 463     _page_grids.table().attach(_grids_notebook, 0, 3, 4, 5, Gtk::FILL|Gtk::EXPAND, (Gtk::AttachOptions)0,0,0);
 464 }
 465
 466
 467
 468 /**
 469  * Update dialog widgets from desktop. Also call updateWidget routines of the grids.
 470  */
 471 void
 472 DocumentProperties::update()
 473 {
 474     if (_wr.isUpdating()) return;
 475
 476     SPDesktop *dt = SP_ACTIVE_DESKTOP;
 477     SPNamedView *nv = sp_desktop_namedview(dt);
 478
 479     _wr.setUpdating (true);
 480     set_sensitive (true);
 481
 482     //-----------------------------------------------------------page page
 483     _rcp_bg.setRgba32 (nv->pagecolor);
 484     _rcb_canb.setActive (nv->showborder);
 485     _rcb_bord.setActive (nv->borderlayer == SP_BORDER_LAYER_TOP);
 486     _rcp_bord.setRgba32 (nv->bordercolor);
 487     _rcb_shad.setActive (nv->showpageshadow);
 488
 489     if (nv->doc_units)
 490         _rum_deflt.setUnit (nv->doc_units);
 491
 492     double const doc_w_px = sp_document_width(sp_desktop_document(dt));
 493     double const doc_h_px = sp_document_height(sp_desktop_document(dt));
 494     _page_sizer.setDim (doc_w_px, doc_h_px);
 495
 496     //-----------------------------------------------------------guide
 497     _rcb_sgui.setActive (nv->showguides);
 498     _rcp_gui.setRgba32 (nv->guidecolor);
 499     _rcp_hgui.setRgba32 (nv->guidehicolor);
 500
 501     //-----------------------------------------------------------snap
 502
 503     _rcbsnbb.setActive (nv->snap_manager.getSnapModeBBox());
 504     _rcbsnn.setActive (nv->snap_manager.getSnapModeNode());
 505     _rcbsng.setActive (nv->snap_manager.getSnapModeGuide());
 506     _rcbic.setActive (nv->snap_manager.getIncludeItemCenter());
 507     _rcbsnop.setActive(nv->snap_manager.object.getSnapToItemPath());
 508     _rcbsnon.setActive(nv->snap_manager.object.getSnapToItemNode());
 509     _rcbsnbbp.setActive(nv->snap_manager.object.getSnapToBBoxPath());
 510     _rcbsnbbn.setActive(nv->snap_manager.object.getSnapToBBoxNode());
 511     _rsu_sno.setValue (nv->objecttolerance);
 512
 513     _rsu_sn.setValue (nv->gridtolerance);
 514
 515     _rsu_gusn.setValue (nv->guidetolerance);
 516
 517     //-----------------------------------------------------------grids page
 518
 519     update_gridspage();
 520
 521     _wr.setUpdating (false);
 522 }
 523
 524 //--------------------------------------------------------------------
 525
 526 void
 527 DocumentProperties::on_response (int id)
 528 {
 529     if (id == Gtk::RESPONSE_DELETE_EVENT || id == Gtk::RESPONSE_CLOSE)
 530     {
 531         _rcp_bg.closeWindow();
 532         _rcp_bord.closeWindow();
 533         _rcp_gui.closeWindow();
 534         _rcp_hgui.closeWindow();
 535     }
 536
 537     if (id == Gtk::RESPONSE_CLOSE)
 538         hide();
 539 }
 540
 541
 542
 543 static void
 544 on_child_added(Inkscape::XML::Node */*repr*/, Inkscape::XML::Node */*child*/, Inkscape::XML::Node */*ref*/, void * /*data*/)
 545 {
 546     if (!_instance)
 547         return;
 548
 549     _instance->update_gridspage();
 550 }
 551
 552 static void
 553 on_child_removed(Inkscape::XML::Node */*repr*/, Inkscape::XML::Node */*child*/, Inkscape::XML::Node */*ref*/, void * /*data*/)
 554 {
 555     if (!_instance)
 556         return;
 557
 558     _instance->update_gridspage();
 559 }
 560
 561
 562
 563 /**
 564  * Called when XML node attribute changed; updates dialog widgets.
 565  */
 566 static void
 567 on_repr_attr_changed (Inkscape::XML::Node *, gchar const *, gchar const *, gchar const *, bool, gpointer)
 568 {
 569     if (!_instance)
 570         return;
 571
 572     _instance->update();
 573 }
 574
 575 static void
 576 on_activate_desktop (Inkscape::Application *, SPDesktop* /*dt*/, void*)
 577 {
 578     if (!_instance)
 579         return;
 580
 581     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(SP_ACTIVE_DESKTOP));
 582     repr->addListener (&_repr_events, _instance);
 583     Inkscape::XML::Node *root = SP_OBJECT_REPR(sp_desktop_document(SP_ACTIVE_DESKTOP)->root);
 584     root->addListener (&_repr_events, _instance);
 585     _instance->_doc_replaced_connection = SP_ACTIVE_DESKTOP->connectDocumentReplaced (sigc::ptr_fun (on_doc_replaced));
 586     _instance->update();
 587 }
 588
 589 static void
 590 on_deactivate_desktop (Inkscape::Application *, SPDesktop* /*dt*/, void*)
 591 {
 592     if (!_instance)
 593         return;
 594
 595     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(SP_ACTIVE_DESKTOP));
 596     repr->removeListenerByData (_instance);
 597     Inkscape::XML::Node *root = SP_OBJECT_REPR(sp_desktop_document(SP_ACTIVE_DESKTOP)->root);
 598     root->removeListenerByData (_instance);
 599     _instance->_doc_replaced_connection.disconnect();
 600 }
 601
 602 static void
 603 on_doc_replaced (SPDesktop* dt, SPDocument* doc)
 604 {
 605     if (!_instance)
 606         return;
 607
 608     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(dt));
 609     repr->addListener (&_repr_events, _instance);
 610     Inkscape::XML::Node *root = SP_OBJECT_REPR(doc->root);
 611     root->addListener (&_repr_events, _instance);
 612     _instance->update();
 613 }
 614
 615
 616
 617
 618 /*########################################################################
 619 # BUTTON CLICK HANDLERS    (callbacks)
 620 ########################################################################*/
 621
 622 void
 623 DocumentProperties::onNewGrid()
 624 {
 625     SPDesktop *dt = SP_ACTIVE_DESKTOP;
 626     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(dt));
 627     SPDocument *doc = sp_desktop_document(dt);
 628
 629     Glib::ustring typestring = _grids_combo_gridtype.get_active_text();
 630     CanvasGrid::writeNewGridToRepr(repr, doc, CanvasGrid::getGridTypeFromName(typestring.c_str()));
 631 }
 632
 633
 634 void
 635 DocumentProperties::onRemoveGrid()
 636 {
 637     gint pagenum = _grids_notebook.get_current_page();
 638     if (pagenum == -1) // no pages
 639       return;
 640
 641     Gtk::Widget *page = _grids_notebook.get_nth_page(pagenum);
 642     if (!page) return;
 643
 644     Glib::ustring tabtext = _grids_notebook.get_tab_label_text(*page);
 645
 646     // find the grid with name tabtext (it's id) and delete that one.
 647     SPDesktop *dt = SP_ACTIVE_DESKTOP;
 648     SPNamedView *nv = sp_desktop_namedview(dt);
 649     Inkscape::CanvasGrid * found_grid = NULL;
 650     for (GSList const * l = nv->grids; l != NULL; l = l->next) {
 651         Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
 652         gchar const *idtext = grid->repr->attribute("id");
 653         if ( !strcmp(tabtext.c_str(), idtext) ) {
 654             found_grid = grid;
 655             break; // break out of for-loop
 656         }
 657     }
 658     if (found_grid) {
 659         // delete the grid that corresponds with the selected tab
 660         // when the grid is deleted from SVG, the SPNamedview handler automatically deletes the object, so found_grid becomes an invalid pointer!
 661         found_grid->repr->parent()->removeChild(found_grid->repr);
 662         sp_document_done(sp_desktop_document(dt), SP_VERB_DIALOG_NAMEDVIEW, _("Remove grid"));
 663     }
 664 }
 665
 666
 667 } // namespace Dialog
 668 } // namespace UI
 669 } // namespace Inkscape
 670
 671 /*
 672   Local Variables:
 673   mode:c++
 674   c-file-style:"stroustrup"
 675   c-file-offsets:((innamespace . 0)(inline-open . 0))
 676   indent-tabs-mode:nilu
 677   fill-column:99
 678   End:
 679 */
 680 // vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :