summaryrefslogtreecommitdiffstats
path: root/src/ui/toolbar/arc-toolbar.cpp
blob: 6c17ab12d25f73082857b2c7f66ed696907cea27 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
// SPDX-License-Identifier: GPL-2.0-or-later
/**
 * @file
 * Arc aux toolbar
 */
/* Authors:
 *   MenTaLguY <mental@rydia.net>
 *   Lauris Kaplinski <lauris@kaplinski.com>
 *   bulia byak <buliabyak@users.sf.net>
 *   Frank Felfe <innerspace@iname.com>
 *   John Cliff <simarilius@yahoo.com>
 *   David Turner <novalis@gnu.org>
 *   Josh Andler <scislac@scislac.com>
 *   Jon A. Cruz <jon@joncruz.org>
 *   Maximilian Albert <maximilian.albert@gmail.com>
 *   Tavmjong Bah <tavmjong@free.fr>
 *   Abhishek Sharma
 *   Kris De Gussem <Kris.DeGussem@gmail.com>
 *
 * Copyright (C) 2004 David Turner
 * Copyright (C) 2003 MenTaLguY
 * Copyright (C) 1999-2011 authors
 * Copyright (C) 2001-2002 Ximian, Inc.
 *
 * Released under GNU GPL v2+, read the file 'COPYING' for more information.
 */

#include "arc-toolbar.h"

#include <glibmm/i18n.h>

#include <gtkmm/radiotoolbutton.h>
#include <gtkmm/separatortoolitem.h>

#include "desktop.h"
#include "document-undo.h"
#include "mod360.h"
#include "selection.h"
#include "verbs.h"

#include "object/sp-ellipse.h"
#include "object/sp-namedview.h"

#include "ui/icon-names.h"
#include "ui/pref-pusher.h"
#include "ui/tools/arc-tool.h"
#include "ui/uxmanager.h"
#include "ui/widget/combo-tool-item.h"
#include "ui/widget/label-tool-item.h"
#include "ui/widget/spin-button-tool-item.h"
#include "ui/widget/unit-tracker.h"

#include "widgets/spinbutton-events.h"
#include "widgets/widget-sizes.h"

#include "xml/node-event-vector.h"

using Inkscape::UI::Widget::UnitTracker;
using Inkscape::UI::UXManager;
using Inkscape::DocumentUndo;
using Inkscape::Util::Quantity;
using Inkscape::Util::unit_table;


static Inkscape::XML::NodeEventVector arc_tb_repr_events = {
    nullptr, /* child_added */
    nullptr, /* child_removed */
    Inkscape::UI::Toolbar::ArcToolbar::event_attr_changed,
    nullptr, /* content_changed */
    nullptr  /* order_changed */
};

namespace Inkscape {
namespace UI {
namespace Toolbar {
ArcToolbar::ArcToolbar(SPDesktop *desktop) :
        Toolbar(desktop),
        _tracker(new UnitTracker(Inkscape::Util::UNIT_TYPE_LINEAR)),
        _freeze(false),
        _repr(nullptr)
{
    _tracker->setActiveUnit(desktop->getNamedView()->display_units);
    auto prefs = Inkscape::Preferences::get();

    {
        _mode_item = Gtk::manage(new UI::Widget::LabelToolItem(_("<b>New:</b>")));
        _mode_item->set_use_markup(true);
        add(*_mode_item);
    }

    /* Radius X */
    {
        std::vector<double> values = {1, 2, 3, 5, 10, 20, 50, 100, 200, 500};
        auto rx_val = prefs->getDouble("/tools/shapes/arc/rx", 0);
        _rx_adj = Gtk::Adjustment::create(rx_val, 0, 1e6, SPIN_STEP, SPIN_PAGE_STEP);
        _rx_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("arc-rx", _("Rx:"), _rx_adj));
        _rx_item->set_tooltip_text(_("Horizontal radius of the circle, ellipse, or arc"));
        _rx_item->set_custom_numeric_menu_data(values);
        _tracker->addAdjustment(_rx_adj->gobj());
        _rx_item->set_focus_widget(Glib::wrap(GTK_WIDGET(desktop->canvas)));
        _rx_adj->signal_value_changed().connect(sigc::bind(sigc::mem_fun(*this, &ArcToolbar::value_changed),
                                                           _rx_adj, "rx"));
        _rx_item->set_sensitive(false);
        add(*_rx_item);
    }

    /* Radius Y */
    {
        std::vector<double> values = {1, 2, 3, 5, 10, 20, 50, 100, 200, 500};
        auto ry_val = prefs->getDouble("/tools/shapes/arc/ry", 0);
        _ry_adj = Gtk::Adjustment::create(ry_val, 0, 1e6, SPIN_STEP, SPIN_PAGE_STEP);
        _ry_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("arc-ry", _("Ry:"), _ry_adj));
        _ry_item->set_tooltip_text(_("Vertical radius of the circle, ellipse, or arc"));
        _ry_item->set_custom_numeric_menu_data(values);
        _tracker->addAdjustment(_ry_adj->gobj());
        _ry_item->set_focus_widget(Glib::wrap(GTK_WIDGET(desktop->canvas)));
        _ry_adj->signal_value_changed().connect(sigc::bind(sigc::mem_fun(*this, &ArcToolbar::value_changed),
                                                           _ry_adj, "ry"));
        _ry_item->set_sensitive(false);
        add(*_ry_item);
    }

    // add the units menu
    {
        auto unit_menu = _tracker->create_tool_item(_("Units"), ("") );
        add(*unit_menu);
    }

    add(* Gtk::manage(new Gtk::SeparatorToolItem()));

    /* Start */
    {
        auto start_val = prefs->getDouble("/tools/shapes/arc/start", 0.0);
        _start_adj = Gtk::Adjustment::create(start_val, -360.0, 360.0, 1.0, 10.0);
        auto eact = Gtk::manage(new UI::Widget::SpinButtonToolItem("arc-start", _("Start:"), _start_adj));
        eact->set_tooltip_text(_("The angle (in degrees) from the horizontal to the arc's start point"));
        eact->set_focus_widget(Glib::wrap(GTK_WIDGET(desktop->canvas)));
        add(*eact);
    }

    /* End */
    {
        auto end_val = prefs->getDouble("/tools/shapes/arc/end", 0.0);
        _end_adj = Gtk::Adjustment::create(end_val, -360.0, 360.0, 1.0, 10.0);
        auto eact = Gtk::manage(new UI::Widget::SpinButtonToolItem("arc-end", _("End:"), _end_adj));
        eact->set_tooltip_text(_("The angle (in degrees) from the horizontal to the arc's end point"));
        eact->set_focus_widget(Glib::wrap(GTK_WIDGET(desktop->canvas)));
        add(*eact);
    }
    _start_adj->signal_value_changed().connect(sigc::bind(sigc::mem_fun(*this, &ArcToolbar::startend_value_changed),
                                                          _start_adj, "start", _end_adj));
    _end_adj->signal_value_changed().connect(  sigc::bind(sigc::mem_fun(*this, &ArcToolbar::startend_value_changed),
                                                          _end_adj,   "end",   _start_adj));

    add(* Gtk::manage(new Gtk::SeparatorToolItem()));

    /* Arc: Slice, Arc, Chord */
    {
        Gtk::RadioToolButton::Group type_group;

        auto slice_btn = Gtk::manage(new Gtk::RadioToolButton(_("Slice")));
        slice_btn->set_tooltip_text(_("Switch to slice (closed shape with two radii)"));
        slice_btn->set_icon_name(INKSCAPE_ICON("draw-ellipse-segment"));
        _type_buttons.push_back(slice_btn);

        auto arc_btn = Gtk::manage(new Gtk::RadioToolButton(_("Arc (Open)")));
        arc_btn->set_tooltip_text(_("Switch to arc (unclosed shape)"));
        arc_btn->set_icon_name(INKSCAPE_ICON("draw-ellipse-arc"));
        _type_buttons.push_back(arc_btn);

        auto chord_btn = Gtk::manage(new Gtk::RadioToolButton(_("Chord")));
        chord_btn->set_tooltip_text(_("Switch to chord (closed shape)"));
        chord_btn->set_icon_name(INKSCAPE_ICON("draw-ellipse-chord"));
        _type_buttons.push_back(chord_btn);

        slice_btn->set_group(type_group);
        arc_btn->set_group(type_group);
        chord_btn->set_group(type_group);

        gint type = prefs->getInt("/tools/shapes/arc/arc_type", 0);
        _type_buttons[type]->set_active();

        int btn_index = 0;
        for (auto btn : _type_buttons)
        {
            btn->set_sensitive();
            btn->signal_clicked().connect(sigc::bind(sigc::mem_fun(*this, &ArcToolbar::type_changed), btn_index++));
            add(*btn);
        }
    }

    add(* Gtk::manage(new Gtk::SeparatorToolItem()));

    /* Make Whole */
    {
        _make_whole = Gtk::manage(new Gtk::ToolButton(_("Make whole")));
        _make_whole->set_tooltip_text(_("Make the shape a whole ellipse, not arc or segment"));
        _make_whole->set_icon_name(INKSCAPE_ICON("draw-ellipse-whole"));
        _make_whole->signal_clicked().connect(sigc::mem_fun(*this, &ArcToolbar::defaults));
        add(*_make_whole);
        _make_whole->set_sensitive(true);
    }

    _single = true;
    // sensitivize make whole and open checkbox
    {
        sensitivize( _start_adj->get_value(), _end_adj->get_value() );
    }

    desktop->connectEventContextChanged(sigc::mem_fun(*this, &ArcToolbar::check_ec));

    show_all();
}

ArcToolbar::~ArcToolbar()
{
    if(_repr) {
        _repr->removeListenerByData(this);
        GC::release(_repr);
        _repr = nullptr;
    }
}

GtkWidget *
ArcToolbar::create(SPDesktop *desktop)
{
    auto toolbar = new ArcToolbar(desktop);
    return GTK_WIDGET(toolbar->gobj());
}

void
ArcToolbar::value_changed(Glib::RefPtr<Gtk::Adjustment>&  adj,
                          gchar const                    *value_name)
{
    // Per SVG spec "a [radius] value of zero disables rendering of the element".
    // However our implementation does not allow a setting of zero in the UI (not even in the XML editor)
    // and ugly things happen if it's forced here, so better leave the properties untouched.
    if (!adj->get_value()) {
        return;
    }

    Unit const *unit = _tracker->getActiveUnit();
    g_return_if_fail(unit != nullptr);

    SPDocument* document = _desktop->getDocument();
    Geom::Scale scale = document->getDocumentScale();

    if (DocumentUndo::getUndoSensitive(document)) {
        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
        prefs->setDouble(Glib::ustring("/tools/shapes/arc/") + value_name,
            Quantity::convert(adj->get_value(), unit, "px"));
    }

    // quit if run by the attr_changed listener
    if (_freeze || _tracker->isUpdating()) {
        return;
    }

    // in turn, prevent listener from responding
    _freeze = true;

    bool modmade = false;
    Inkscape::Selection *selection = _desktop->getSelection();
    auto itemlist= selection->items();
    for(auto i=itemlist.begin();i!=itemlist.end();++i){
        SPItem *item = *i;
        if (SP_IS_GENERICELLIPSE(item)) {

            SPGenericEllipse *ge = SP_GENERICELLIPSE(item);

            if (!strcmp(value_name, "rx")) {
                ge->setVisibleRx(Quantity::convert(adj->get_value(), unit, "px"));
            } else {
                ge->setVisibleRy(Quantity::convert(adj->get_value(), unit, "px"));
            }

            ge->normalize();
            (SP_OBJECT(ge))->updateRepr();
            (SP_OBJECT(ge))->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);

            modmade = true;
        }
    }

    if (modmade) {
        DocumentUndo::done(_desktop->getDocument(), SP_VERB_CONTEXT_ARC,
                           _("Ellipse: Change radius"));
    }

    _freeze = false;
}

void
ArcToolbar::startend_value_changed(Glib::RefPtr<Gtk::Adjustment>&  adj,
                                   gchar const                    *value_name,
                                   Glib::RefPtr<Gtk::Adjustment>&  other_adj)
{
    if (DocumentUndo::getUndoSensitive(_desktop->getDocument())) {
        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
        prefs->setDouble(Glib::ustring("/tools/shapes/arc/") + value_name, adj->get_value());
    }

    // quit if run by the attr_changed listener
    if (_freeze) {
        return;
    }

    // in turn, prevent listener from responding
    _freeze = true;

    gchar* namespaced_name = g_strconcat("sodipodi:", value_name, NULL);

    bool modmade = false;
    auto itemlist= _desktop->getSelection()->items();
    for(auto i=itemlist.begin();i!=itemlist.end();++i){
        SPItem *item = *i;
        if (SP_IS_GENERICELLIPSE(item)) {

            SPGenericEllipse *ge = SP_GENERICELLIPSE(item);

            if (!strcmp(value_name, "start")) {
                ge->start = (adj->get_value() * M_PI)/ 180;
            } else {
                ge->end = (adj->get_value() * M_PI)/ 180;
            }

            ge->normalize();
            (SP_OBJECT(ge))->updateRepr();
            (SP_OBJECT(ge))->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);

            modmade = true;
        }
    }

    g_free(namespaced_name);

    sensitivize( adj->get_value(), other_adj->get_value() );

    if (modmade) {
        DocumentUndo::maybeDone(_desktop->getDocument(), value_name, SP_VERB_CONTEXT_ARC,
                                _("Arc: Change start/end"));
    }

    _freeze = false;
}

void
ArcToolbar::type_changed( int type )
{
    if (DocumentUndo::getUndoSensitive(_desktop->getDocument())) {
        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
        prefs->setInt("/tools/shapes/arc/arc_type", type);
    }

    // quit if run by the attr_changed listener
    if (_freeze) {
        return;
    }

    // in turn, prevent listener from responding
    _freeze = true;

    Glib::ustring arc_type = "slice";
    bool open = false;
    switch (type) {
        case 0:
            arc_type = "slice";
            open = false;
            break;
        case 1:
            arc_type = "arc";
            open = true;
            break;
        case 2:
            arc_type = "chord";
            open = true; // For backward compat, not truly open but chord most like arc.
            break;
        default:
            std::cerr << "sp_arctb_type_changed: bad arc type: " << type << std::endl;
    }
               
    bool modmade = false;
    auto itemlist= _desktop->getSelection()->items();
    for(auto i=itemlist.begin();i!=itemlist.end();++i){
        SPItem *item = *i;
        if (SP_IS_GENERICELLIPSE(item)) {
            Inkscape::XML::Node *repr = item->getRepr();
            repr->setAttribute("sodipodi:open", (open?"true":nullptr) );
            repr->setAttribute("sodipodi:arc-type", arc_type);
            item->updateRepr();
            modmade = true;
        }
    }

    if (modmade) {
        DocumentUndo::done(_desktop->getDocument(), SP_VERB_CONTEXT_ARC,
                           _("Arc: Changed arc type"));
    }

    _freeze = false;
}

void
ArcToolbar::defaults()
{
    _start_adj->set_value(0.0);
    _end_adj->set_value(0.0);

    if(_desktop->canvas) gtk_widget_grab_focus(GTK_WIDGET(_desktop->canvas));
}

void
ArcToolbar::sensitivize( double v1, double v2 )
{
    if (v1 == 0 && v2 == 0) {
        if (_single) { // only for a single selected ellipse (for now)
            for (auto btn : _type_buttons) btn->set_sensitive(false);
            _make_whole->set_sensitive(false);
        }
    } else {
        for (auto btn : _type_buttons) btn->set_sensitive(true);
        _make_whole->set_sensitive(true);
    }
}

void
ArcToolbar::check_ec(SPDesktop* desktop, Inkscape::UI::Tools::ToolBase* ec)
{
    if (SP_IS_ARC_CONTEXT(ec)) {
        _changed = _desktop->getSelection()->connectChanged(sigc::mem_fun(*this, &ArcToolbar::selection_changed));
        selection_changed(desktop->getSelection());
    } else {
        if (_changed) {
            _changed.disconnect();
            if(_repr) {
                _repr->removeListenerByData(this);
                Inkscape::GC::release(_repr);
                _repr = nullptr;
            }
        }
    }
}

void
ArcToolbar::selection_changed(Inkscape::Selection *selection)
{
    int n_selected = 0;
    Inkscape::XML::Node *repr = nullptr;

    if ( _repr ) {
        _item = nullptr;
        _repr->removeListenerByData(this);
        GC::release(_repr);
        _repr = nullptr;
    }

    SPItem *item = nullptr;

    for(auto i : selection->items()){
        if (SP_IS_GENERICELLIPSE(i)) {
            n_selected++;
            item = i;
            repr = item->getRepr();
        }
    }

    _single = false;
    if (n_selected == 0) {
        _mode_item->set_markup(_("<b>New:</b>"));
    } else if (n_selected == 1) {
        _single = true;
        _mode_item->set_markup(_("<b>Change:</b>"));
        _rx_item->set_sensitive(true);
        _ry_item->set_sensitive(true);

        if (repr) {
            _repr = repr;
            _item = item;
            Inkscape::GC::anchor(_repr);
            _repr->addListener(&arc_tb_repr_events, this);
            _repr->synthesizeEvents(&arc_tb_repr_events, this);
        }
    } else {
        // FIXME: implement averaging of all parameters for multiple selected
        //gtk_label_set_markup(GTK_LABEL(l), _("<b>Average:</b>"));
        _mode_item->set_markup(_("<b>Change:</b>"));
        sensitivize( 1, 0 );
    }
}

void
ArcToolbar::event_attr_changed(Inkscape::XML::Node *repr, gchar const * /*name*/,
                               gchar const * /*old_value*/, gchar const * /*new_value*/,
                               bool /*is_interactive*/, gpointer data)
{
    auto toolbar = reinterpret_cast<ArcToolbar *>(data);

    // quit if run by the _changed callbacks
    if (toolbar->_freeze) {
        return;
    }

    // in turn, prevent callbacks from responding
    toolbar->_freeze = true;

    if (toolbar->_item && SP_IS_GENERICELLIPSE(toolbar->_item)) {
        SPGenericEllipse *ge = SP_GENERICELLIPSE(toolbar->_item);

        Unit const *unit = toolbar->_tracker->getActiveUnit();
        g_return_if_fail(unit != nullptr);

        gdouble rx = ge->getVisibleRx();
        gdouble ry = ge->getVisibleRy();
        toolbar->_rx_adj->set_value(Quantity::convert(rx, "px", unit));
        toolbar->_ry_adj->set_value(Quantity::convert(ry, "px", unit));
    }

    gdouble start = 0.;
    gdouble end = 0.;
    sp_repr_get_double(repr, "sodipodi:start", &start);
    sp_repr_get_double(repr, "sodipodi:end", &end);

    toolbar->_start_adj->set_value(mod360((start * 180)/M_PI));
    toolbar->_end_adj->set_value(mod360((end * 180)/M_PI));

    toolbar->sensitivize(toolbar->_start_adj->get_value(), toolbar->_end_adj->get_value());

    char const *arctypestr = nullptr;
    arctypestr = repr->attribute("sodipodi:arc-type");
    if (!arctypestr) { // For old files.
        char const *openstr = nullptr;
        openstr = repr->attribute("sodipodi:open");
        arctypestr = (openstr ? "arc" : "slice");
    }

    if (!strcmp(arctypestr,"slice")) {
        toolbar->_type_buttons[0]->set_active();
    } else if (!strcmp(arctypestr,"arc")) {
        toolbar->_type_buttons[1]->set_active();
    } else {
        toolbar->_type_buttons[2]->set_active();
    }

    toolbar->_freeze = false;
}

}
}
}


/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :