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