Code

Renaming captions and labels in snapping preferences dialog, and inverting the behavi...
[inkscape.git] / 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  */
18 #ifdef HAVE_CONFIG_H
19 # include <config.h>
20 #endif
24 #include <gtkmm.h>
25 #include "ui/widget/color-picker.h"
26 #include "ui/widget/scalar-unit.h"
28 #include "xml/node-event-vector.h"
29 #include "helper/units.h"
30 #include "prefs-utils.h"
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"
39 #include "document-properties.h"
41 #include "display/canvas-grid.h"
43 using std::pair;
45 namespace Inkscape {
46 namespace UI {
47 namespace Dialog {
49 #define SPACE_SIZE_X 15
50 #define SPACE_SIZE_Y 10
52 //===================================================
54 //---------------------------------------------------
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);
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 };
69 DocumentProperties &
70 DocumentProperties::getInstance()
71 {
72     DocumentProperties &instance = *new DocumentProperties();
73     instance.init();
75     return instance;
76 }
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);
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"));
98     build_page();
99     build_guides();
100     build_gridspage();
101     build_snap();
102     build_snap_dtls();
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));
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));
112 void
113 DocumentProperties::init()
115     update();
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);
122     show_all_children();
123     _grids_button_remove.hide();
126 DocumentProperties::~DocumentProperties()
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);
134 //========================================================================
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)
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     }
179 void
180 DocumentProperties::build_page()
182     _page_page.show();
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);
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);
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     };
218     attach_all(_page_page.table(), widget_array, G_N_ELEMENTS(widget_array));
221 void
222 DocumentProperties::build_guides()
224     _page_guides.show();
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 ('Snap to nodes' or 'snap to 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>"));
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     };
249     attach_all(_page_guides.table(), widget_array, G_N_ELEMENTS(widget_array));
252 void
253 DocumentProperties::build_snap()
255     _page_snap.show();
256         //General options
257     _rcbsg.init (_("Enable snapping"),
258                 _("Toggle snapping on or off"),
259                 "inkscape:snap-global", _wr);    
260         _rcbsnbb.init (_("_Bounding box corners"),
261                 _("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)"),
262                 "inkscape:snap-bbox", _wr);
263     _rcbsnn.init (_("_Nodes"),
264                 _("Snap nodes to grid lines, to guides, to paths, and to other nodes"),
265                 "inkscape:snap-nodes", _wr);
267     //Options for snapping to objects
268     _rcbsnop.init (_("Snap to pat_hs"),
269                 _("Snap nodes to object paths"),
270                 "inkscape:object-paths", _wr);
271     _rcbsnon.init (_("Snap to n_odes"),
272                 _("Snap nodes and guides to object nodes"),
273                 "inkscape:object-nodes", _wr);
274     _rcbsnbbn.init (_("Snap to bounding box co_rners"),
275                 _("Snap bounding box corners to other bounding box corners"),
276                 "inkscape:bbox-nodes", _wr);
277     _rcbsnbbp.init (_("Snap to bounding box _edges"),
278                 _("Snap bounding box corners and guides to bounding box edges"),
279                 "inkscape:bbox-paths", _wr);
281     _rsu_sno.init (_("Snap _distance"), _("Snap at specified d_istance"),
282                   _("Snapping distance, in screen pixels, for snapping to objects"),
283                   _("If set, objects only snap to another object when it's within the range specified below"),
284                   "objecttolerance", _wr);
286     //Options for snapping to grids
287     _rsu_sn.init (_("Snap di_stance"), _("Snap at specified dis_tance"),
288                   _("Snapping distance, in screen pixels, for snapping to grid"),
289                   _("If set, objects only snap to a grid line when it's within the range specified below"),
290                   "gridtolerance", _wr);
292         //Options for snapping to guides
293     _rsu_gusn.init (_("Snap dist_ance"), _("Snap at specified distan_ce"),
294                 _("Snapping distance, in screen pixels, for snapping to guides"),
295                 _("If set, objects only snap to a guide when it's within the range specified below"),
296                 "guidetolerance", _wr);
298     //Other options to locate here: e.g. visual snapping indicators on/off
300     std::list<Gtk::ToggleButton*> slaves;
301     slaves.push_back(_rcbsnop._button);
302     slaves.push_back(_rcbsnon._button);
303     _rcbsnn.setSlaveButton(slaves);
305     slaves.clear();
306     slaves.push_back(_rcbsnbbp._button);
307     slaves.push_back(_rcbsnbbn._button);
308     _rcbsnbb.setSlaveButton(slaves);
309     
310     slaves.clear();
311     slaves.push_back(_rcbsnn._button);
312     slaves.push_back(_rcbsnbb._button);
313     
314     _rcbsg.setSlaveButton(slaves);
316     Gtk::Label *label_g = manage (new Gtk::Label);
317     label_g->set_markup (_("<b>Snapping</b>"));
318     Gtk::Label *label_w = manage (new Gtk::Label);
319     label_w->set_markup (_("<b>What snaps</b>"));    
320     Gtk::Label *label_o = manage (new Gtk::Label);
321     label_o->set_markup (_("<b>Snap to objects</b>"));
322     Gtk::Label *label_gr = manage (new Gtk::Label);
323     label_gr->set_markup (_("<b>Snap to grids</b>"));
324     Gtk::Label *label_gu = manage (new Gtk::Label);
325     label_gu->set_markup (_("<b>Snap to guides</b>"));
326     
327     Gtk::Widget *const array[] =
328     {
329         label_g,            0,
330         0,                  _rcbsg._button,
331         0,                  0,
332         label_w,            0,
333         0,                  _rcbsnn._button,
334         0,                  _rcbsnbb._button,
335         0,                                      0,
336         label_o,            0,
337         0,                                      _rcbsnop._button,
338         0,                                      _rcbsnon._button,
339         0,                  _rcbsnbbp._button,
340         0,                  _rcbsnbbn._button,
341         0,                  _rsu_sno._vbox,
342         0,                                      0,
343         label_gr,           0,
344         0,                  _rsu_sn._vbox,
345         0,                                      0,
346         label_gu,               0,
347         0,                      _rsu_gusn._vbox
348     };
350     attach_all(_page_snap.table(), array, G_N_ELEMENTS(array));
351  }
353 void
354 DocumentProperties::build_snap_dtls()
356     _page_snap_dtls.show();
357         
358         _rcbsigg.init (_("_Grid with guides"),
359                 _("Snap to grid-guide intersections"),
360                 "inkscape:snap-intersection-grid-guide", _wr);
361         
362         _rcbsils.init (_("_Line segments"),
363                 _("Snap to intersections of line segments ('snap to paths' must be enabled, see the previous tab)"),
364                 "inkscape:snap-intersection-line-segments", _wr);
365     
366     //Applies to both nodes and guides, but not to bboxes, that's why its located here
367     _rcbic.init (_("_Include the object's rotation center"),
368                 _("Also snap the rotation center of an object when snapping nodes or guides"),
369                 "inkscape:snap-center", _wr);
370     
371     //Other options to locate here: e.g. visual snapping indicators on/off
373     Gtk::Label *label_i= manage (new Gtk::Label);
374     label_i->set_markup (_("<b>Snapping to intersections of</b>"));
375     Gtk::Label *label_m = manage (new Gtk::Label);
376     label_m->set_markup (_("<b>Miscellaneous</b>"));
378     Gtk::Widget *const array[] =
379     {
380         label_i,            0,
381         0,                  _rcbsigg._button,
382         0,                  _rcbsils._button,
383         0,                  0,
384         label_m,            0,
385         0,                  _rcbic._button,
386     };
388     attach_all(_page_snap_dtls.table(), array, G_N_ELEMENTS(array));
391 /**
392 * Called for _updating_ the dialog (e.g. when a new grid was manually added in XML)
393 */
394 void
395 DocumentProperties::update_gridspage()
397     SPDesktop *dt = getDesktop();
398     SPNamedView *nv = sp_desktop_namedview(dt);
400     //remove all tabs
401     while (_grids_notebook.get_current_page() != -1) {
402         _grids_notebook.remove_page(-1);
403     }
405     //add tabs
406     bool grids_present = false;
407     for (GSList const * l = nv->grids; l != NULL; l = l->next) {
408         Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
409         _grids_notebook.append_page(grid->getWidget(), grid->repr->attribute("id"));
410         grids_present = true;
411     }
412     _grids_notebook.show_all();
414     if (grids_present)
415         _grids_button_remove.show();
416     else
417         _grids_button_remove.hide();
420 /**
421  * Build grid page of dialog.
422  */
423 void
424 DocumentProperties::build_gridspage()
426     /// \todo FIXME: gray out snapping when grid is off.
427     /// Dissenting view: you want snapping without grid.
429     SPDesktop *dt = getDesktop();
430     SPNamedView *nv = sp_desktop_namedview(dt);
432     _grids_label_crea.set_markup(_("<b>Creation</b>"));
433     _grids_label_def.set_markup(_("<b>Defined grids</b>"));
434     _grids_hbox_crea.pack_start(_grids_combo_gridtype, true, true);
435     _grids_hbox_crea.pack_start(_grids_button_new, true, true);
437     for (gint t = 0; t <= GRID_MAXTYPENR; t++) {
438         _grids_combo_gridtype.append_text( CanvasGrid::getName( (GridType) t ) );
439     }
440     _grids_combo_gridtype.set_active_text( CanvasGrid::getName(GRID_RECTANGULAR) );
442     for (GSList const * l = nv->grids; l != NULL; l = l->next) {
443         Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
444         _grids_notebook.append_page(grid->getWidget(), grid->repr->attribute("id"));
445     }
447     _grids_space.set_size_request (SPACE_SIZE_X, SPACE_SIZE_Y);
449     _grids_vbox.set_spacing(4);
450     _grids_vbox.pack_start(_grids_label_crea, false, false);
451     _grids_vbox.pack_start(_grids_hbox_crea, false, false);
452     _grids_vbox.pack_start(_grids_space, false, false);
453     _grids_vbox.pack_start(_grids_label_def, false, false);
454     _grids_vbox.pack_start(_grids_notebook, false, false);
455     _grids_vbox.pack_start(_grids_button_remove, false, false);
456     _grids_button_remove.hide();
461 /**
462  * Update dialog widgets from desktop. Also call updateWidget routines of the grids.
463  */
464 void
465 DocumentProperties::update()
467     if (_wr.isUpdating()) return;
469     SPDesktop *dt = getDesktop();
470     SPNamedView *nv = sp_desktop_namedview(dt);
472     _wr.setUpdating (true);
473     set_sensitive (true);
475     //-----------------------------------------------------------page page
476     _rcp_bg.setRgba32 (nv->pagecolor);
477     _rcb_canb.setActive (nv->showborder);
478     _rcb_bord.setActive (nv->borderlayer == SP_BORDER_LAYER_TOP);
479     _rcp_bord.setRgba32 (nv->bordercolor);
480     _rcb_shad.setActive (nv->showpageshadow);
482     if (nv->doc_units)
483         _rum_deflt.setUnit (nv->doc_units);
485     double const doc_w_px = sp_document_width(sp_desktop_document(dt));
486     double const doc_h_px = sp_document_height(sp_desktop_document(dt));
487     _page_sizer.setDim (doc_w_px, doc_h_px);
489     //-----------------------------------------------------------guide
490     _rcb_sgui.setActive (nv->showguides);
491     _rcp_gui.setRgba32 (nv->guidecolor);
492     _rcp_hgui.setRgba32 (nv->guidehicolor);
494     //-----------------------------------------------------------snap
496     _rcbsnbb.setActive (nv->snap_manager.getSnapModeBBox());
497     _rcbsnn.setActive (nv->snap_manager.getSnapModeNode());
498     _rcbsng.setActive (nv->snap_manager.getSnapModeGuide());
499     _rcbic.setActive (nv->snap_manager.getIncludeItemCenter());
500     _rcbsigg.setActive (nv->snap_manager.getSnapIntersectionGG());
501     _rcbsils.setActive (nv->snap_manager.getSnapIntersectionLS());    
502     _rcbsnop.setActive(nv->snap_manager.object.getSnapToItemPath());
503     _rcbsnon.setActive(nv->snap_manager.object.getSnapToItemNode());
504     _rcbsnbbp.setActive(nv->snap_manager.object.getSnapToBBoxPath());
505     _rcbsnbbn.setActive(nv->snap_manager.object.getSnapToBBoxNode());
506     _rsu_sno.setValue (nv->objecttolerance);
508     _rsu_sn.setValue (nv->gridtolerance);
510     _rsu_gusn.setValue (nv->guidetolerance);
511     
512     _rcbsg.setActive (nv->snap_manager.getSnapEnabledGlobally());    
514     //-----------------------------------------------------------grids page
516     update_gridspage();
518     _wr.setUpdating (false);
521 //--------------------------------------------------------------------
523 void
524 DocumentProperties::on_response (int id)
526     if (id == Gtk::RESPONSE_DELETE_EVENT || id == Gtk::RESPONSE_CLOSE)
527     {
528         _rcp_bg.closeWindow();
529         _rcp_bord.closeWindow();
530         _rcp_gui.closeWindow();
531         _rcp_hgui.closeWindow();
532     }
534     if (id == Gtk::RESPONSE_CLOSE)
535         hide();
538 void 
539 DocumentProperties::_handleDocumentReplaced(SPDesktop* desktop, SPDocument *document)
541     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(desktop));
542     repr->addListener(&_repr_events, this);
543     Inkscape::XML::Node *root = SP_OBJECT_REPR(document->root);
544     root->addListener(&_repr_events, this);
545     update();
548 void 
549 DocumentProperties::_handleActivateDesktop(Inkscape::Application *, SPDesktop *desktop)
551     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(desktop));
552     repr->addListener(&_repr_events, this);
553     Inkscape::XML::Node *root = SP_OBJECT_REPR(sp_desktop_document(desktop)->root);
554     root->addListener(&_repr_events, this);
555     update();
558 void
559 DocumentProperties::_handleDeactivateDesktop(Inkscape::Application *, SPDesktop *desktop)
561     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(desktop));
562     repr->removeListenerByData(this);
563     Inkscape::XML::Node *root = SP_OBJECT_REPR(sp_desktop_document(desktop)->root);
564     root->removeListenerByData(this);
567 static void
568 on_child_added(Inkscape::XML::Node */*repr*/, Inkscape::XML::Node */*child*/, Inkscape::XML::Node */*ref*/, void *data)
570     if (DocumentProperties *dialog = static_cast<DocumentProperties *>(data))
571         dialog->update_gridspage();
574 static void
575 on_child_removed(Inkscape::XML::Node */*repr*/, Inkscape::XML::Node */*child*/, Inkscape::XML::Node */*ref*/, void *data)
577     if (DocumentProperties *dialog = static_cast<DocumentProperties *>(data))
578         dialog->update_gridspage();
583 /**
584  * Called when XML node attribute changed; updates dialog widgets.
585  */
586 static void
587 on_repr_attr_changed (Inkscape::XML::Node *, gchar const *, gchar const *, gchar const *, bool, gpointer data)
589     if (DocumentProperties *dialog = static_cast<DocumentProperties *>(data))
590         dialog->update();
594 /*########################################################################
595 # BUTTON CLICK HANDLERS    (callbacks)
596 ########################################################################*/
598 void
599 DocumentProperties::onNewGrid()
601     SPDesktop *dt = getDesktop();
602     Inkscape::XML::Node *repr = SP_OBJECT_REPR(sp_desktop_namedview(dt));
603     SPDocument *doc = sp_desktop_document(dt);
605     Glib::ustring typestring = _grids_combo_gridtype.get_active_text();
606     CanvasGrid::writeNewGridToRepr(repr, doc, CanvasGrid::getGridTypeFromName(typestring.c_str()));
610 void
611 DocumentProperties::onRemoveGrid()
613     gint pagenum = _grids_notebook.get_current_page();
614     if (pagenum == -1) // no pages
615       return;
617     Gtk::Widget *page = _grids_notebook.get_nth_page(pagenum);
618     if (!page) return;
620     Glib::ustring tabtext = _grids_notebook.get_tab_label_text(*page);
622     // find the grid with name tabtext (it's id) and delete that one.
623     SPDesktop *dt = getDesktop();
624     SPNamedView *nv = sp_desktop_namedview(dt);
625     Inkscape::CanvasGrid * found_grid = NULL;
626     for (GSList const * l = nv->grids; l != NULL; l = l->next) {
627         Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
628         gchar const *idtext = grid->repr->attribute("id");
629         if ( !strcmp(tabtext.c_str(), idtext) ) {
630             found_grid = grid;
631             break; // break out of for-loop
632         }
633     }
634     if (found_grid) {
635         // delete the grid that corresponds with the selected tab
636         // when the grid is deleted from SVG, the SPNamedview handler automatically deletes the object, so found_grid becomes an invalid pointer!
637         found_grid->repr->parent()->removeChild(found_grid->repr);
638         sp_document_done(sp_desktop_document(dt), SP_VERB_DIALOG_NAMEDVIEW, _("Remove grid"));
639     }
643 } // namespace Dialog
644 } // namespace UI
645 } // namespace Inkscape
647 /*
648   Local Variables:
649   mode:c++
650   c-file-style:"stroustrup"
651   c-file-offsets:((innamespace . 0)(inline-open . 0))
652   indent-tabs-mode:nilu
653   fill-column:99
654   End:
655 */
656 // vim: filetype=c++:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :