1 files changed, 431 insertions, 0 deletions
diff --git a/src/ui/toolbar/connector-toolbar.cpp b/src/ui/toolbar/connector-toolbar.cpp
new file mode 100644
index 0000000..305698b
--- /dev/null
+++ b/src/ui/toolbar/connector-toolbar.cpp
@@ -0,0 +1,431 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * @file
+ * Connector 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 "connector-toolbar.h"
+
+#include <glibmm/i18n.h>
+
+#include <gtkmm/separatortoolitem.h>
+
+#include "conn-avoid-ref.h"
+
+#include "desktop.h"
+#include "document-undo.h"
+#include "enums.h"
+#include "layer-manager.h"
+#include "selection.h"
+
+#include "object/algorithms/graphlayout.h"
+#include "object/sp-namedview.h"
+#include "object/sp-path.h"
+
+#include "ui/icon-names.h"
+#include "ui/tools/connector-tool.h"
+#include "ui/widget/canvas.h"
+#include "ui/widget/spin-button-tool-item.h"
+
+#include "xml/node-event-vector.h"
+
+using Inkscape::DocumentUndo;
+
+static Inkscape::XML::NodeEventVector connector_tb_repr_events = {
+    nullptr, /* child_added */
+    nullptr, /* child_removed */
+    Inkscape::UI::Toolbar::ConnectorToolbar::event_attr_changed,
+    nullptr, /* content_changed */
+    nullptr  /* order_changed */
+};
+
+namespace Inkscape {
+namespace UI {
+namespace Toolbar {
+ConnectorToolbar::ConnectorToolbar(SPDesktop *desktop)
+    : Toolbar(desktop),
+    _freeze(false),
+    _repr(nullptr)
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    {
+        auto avoid_item = Gtk::manage(new Gtk::ToolButton(_("Avoid")));
+        avoid_item->set_tooltip_text(_("Make connectors avoid selected objects"));
+        avoid_item->set_icon_name(INKSCAPE_ICON("connector-avoid"));
+        avoid_item->signal_clicked().connect(sigc::mem_fun(*this, &ConnectorToolbar::path_set_avoid));
+        add(*avoid_item);
+    }
+
+    {
+        auto ignore_item = Gtk::manage(new Gtk::ToolButton(_("Ignore")));
+        ignore_item->set_tooltip_text(_("Make connectors ignore selected objects"));
+        ignore_item->set_icon_name(INKSCAPE_ICON("connector-ignore"));
+        ignore_item->signal_clicked().connect(sigc::mem_fun(*this, &ConnectorToolbar::path_set_ignore));
+        add(*ignore_item);
+    }
+
+    // Orthogonal connectors toggle button
+    {
+        _orthogonal = add_toggle_button(_("Orthogonal"),
+                                        _("Make connector orthogonal or polyline"));
+        _orthogonal->set_icon_name(INKSCAPE_ICON("connector-orthogonal"));
+
+        bool tbuttonstate = prefs->getBool("/tools/connector/orthogonal");
+        _orthogonal->set_active(( tbuttonstate ? TRUE : FALSE ));
+        _orthogonal->signal_toggled().connect(sigc::mem_fun(*this, &ConnectorToolbar::orthogonal_toggled));
+    }
+
+    add(* Gtk::manage(new Gtk::SeparatorToolItem()));
+
+    // Curvature spinbox
+    auto curvature_val = prefs->getDouble("/tools/connector/curvature", defaultConnCurvature);
+    _curvature_adj = Gtk::Adjustment::create(curvature_val, 0, 100, 1.0, 10.0);
+    auto curvature_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("inkscape:connector-curvature", _("Curvature:"), _curvature_adj, 1, 0));
+    curvature_item->set_tooltip_text(_("The amount of connectors curvature"));
+    curvature_item->set_focus_widget(desktop->canvas);
+    _curvature_adj->signal_value_changed().connect(sigc::mem_fun(*this, &ConnectorToolbar::curvature_changed));
+    add(*curvature_item);
+
+    // Spacing spinbox
+    auto spacing_val = prefs->getDouble("/tools/connector/spacing", defaultConnSpacing);
+    _spacing_adj = Gtk::Adjustment::create(spacing_val, 0, 100, 1.0, 10.0);
+    auto spacing_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("inkscape:connector-spacing", _("Spacing:"), _spacing_adj, 1, 0));
+    spacing_item->set_tooltip_text(_("The amount of space left around objects by auto-routing connectors"));
+    spacing_item->set_focus_widget(desktop->canvas);
+    _spacing_adj->signal_value_changed().connect(sigc::mem_fun(*this, &ConnectorToolbar::spacing_changed));
+    add(*spacing_item);
+
+    // Graph (connector network) layout
+    {
+        auto graph_item = Gtk::manage(new Gtk::ToolButton(_("Graph")));
+        graph_item->set_tooltip_text(_("Nicely arrange selected connector network"));
+        graph_item->set_icon_name(INKSCAPE_ICON("distribute-graph"));
+        graph_item->signal_clicked().connect(sigc::mem_fun(*this, &ConnectorToolbar::graph_layout));
+        add(*graph_item);
+    }
+
+    // Default connector length spinbox
+    auto length_val = prefs->getDouble("/tools/connector/length", 100);
+    _length_adj = Gtk::Adjustment::create(length_val, 10, 1000, 10.0, 100.0);
+    auto length_item = Gtk::manage(new UI::Widget::SpinButtonToolItem("inkscape:connector-length", _("Length:"), _length_adj, 1, 0));
+    length_item->set_tooltip_text(_("Ideal length for connectors when layout is applied"));
+    length_item->set_focus_widget(desktop->canvas);
+    _length_adj->signal_value_changed().connect(sigc::mem_fun(*this, &ConnectorToolbar::length_changed));
+    add(*length_item);
+
+    // Directed edges toggle button
+    {
+        _directed_item = add_toggle_button(_("Downwards"),
+                                           _("Make connectors with end-markers (arrows) point downwards"));
+        _directed_item->set_icon_name(INKSCAPE_ICON("distribute-graph-directed"));
+
+        bool tbuttonstate = prefs->getBool("/tools/connector/directedlayout");
+        _directed_item->set_active(tbuttonstate ? TRUE : FALSE);
+
+        _directed_item->signal_toggled().connect(sigc::mem_fun(*this, &ConnectorToolbar::directed_graph_layout_toggled));
+        desktop->getSelection()->connectChanged(sigc::mem_fun(*this, &ConnectorToolbar::selection_changed));
+    }
+
+    // Avoid overlaps toggle button
+    {
+        _overlap_item = add_toggle_button(_("Remove overlaps"),
+                                          _("Do not allow overlapping shapes"));
+        _overlap_item->set_icon_name(INKSCAPE_ICON("distribute-remove-overlaps"));
+
+        bool tbuttonstate = prefs->getBool("/tools/connector/avoidoverlaplayout");
+        _overlap_item->set_active(tbuttonstate ? TRUE : FALSE);
+
+        _overlap_item->signal_toggled().connect(sigc::mem_fun(*this, &ConnectorToolbar::nooverlaps_graph_layout_toggled));
+    }
+
+    // Code to watch for changes to the connector-spacing attribute in
+    // the XML.
+    Inkscape::XML::Node *repr = desktop->namedview->getRepr();
+    g_assert(repr != nullptr);
+
+    if(_repr) {
+        _repr->removeListenerByData(this);
+        Inkscape::GC::release(_repr);
+        _repr = nullptr;
+    }
+
+    if (repr) {
+        _repr = repr;
+        Inkscape::GC::anchor(_repr);
+        _repr->addListener(&connector_tb_repr_events, this);
+        _repr->synthesizeEvents(&connector_tb_repr_events, this);
+    }
+
+    show_all();
+}
+
+GtkWidget *
+ConnectorToolbar::create( SPDesktop *desktop)
+{
+    auto toolbar = new ConnectorToolbar(desktop);
+    return GTK_WIDGET(toolbar->gobj());
+} // end of ConnectorToolbar::prep()
+
+void
+ConnectorToolbar::path_set_avoid()
+{
+    Inkscape::UI::Tools::cc_selection_set_avoid(_desktop, true);
+}
+
+void
+ConnectorToolbar::path_set_ignore()
+{
+    Inkscape::UI::Tools::cc_selection_set_avoid(_desktop, false);
+}
+
+void
+ConnectorToolbar::orthogonal_toggled()
+{
+    auto doc = _desktop->getDocument();
+
+    if (!DocumentUndo::getUndoSensitive(doc)) {
+        return;
+    }
+
+    // quit if run by the _changed callbacks
+    if (_freeze) {
+        return;
+    }
+
+    // in turn, prevent callbacks from responding
+    _freeze = true;
+
+    bool is_orthog = _orthogonal->get_active();
+    gchar orthog_str[] = "orthogonal";
+    gchar polyline_str[] = "polyline";
+    gchar *value = is_orthog ? orthog_str : polyline_str ;
+
+    bool modmade = false;
+    auto itemlist= _desktop->getSelection()->items();
+    for(auto i=itemlist.begin();i!=itemlist.end();++i){
+        SPItem *item = *i;
+
+        if (Inkscape::UI::Tools::cc_item_is_connector(item)) {
+            item->setAttribute( "inkscape:connector-type", value);
+            item->getAvoidRef().handleSettingChange();
+            modmade = true;
+        }
+    }
+
+    if (!modmade) {
+        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+        prefs->setBool("/tools/connector/orthogonal", is_orthog);
+    } else {
+
+        DocumentUndo::done(doc, is_orthog ? _("Set connector type: orthogonal"): _("Set connector type: polyline"), INKSCAPE_ICON("draw-connector"));
+    }
+
+    _freeze = false;
+}
+
+void
+ConnectorToolbar::curvature_changed()
+{
+    SPDocument *doc = _desktop->getDocument();
+
+    if (!DocumentUndo::getUndoSensitive(doc)) {
+        return;
+    }
+
+
+    // quit if run by the _changed callbacks
+    if (_freeze) {
+        return;
+    }
+
+    // in turn, prevent callbacks from responding
+    _freeze = true;
+
+    auto newValue = _curvature_adj->get_value();
+    gchar value[G_ASCII_DTOSTR_BUF_SIZE];
+    g_ascii_dtostr(value, G_ASCII_DTOSTR_BUF_SIZE, newValue);
+
+    bool modmade = false;
+    auto itemlist= _desktop->getSelection()->items();
+    for(auto i=itemlist.begin();i!=itemlist.end();++i){
+        SPItem *item = *i;
+
+        if (Inkscape::UI::Tools::cc_item_is_connector(item)) {
+            item->setAttribute( "inkscape:connector-curvature", value);
+            item->getAvoidRef().handleSettingChange();
+            modmade = true;
+        }
+    }
+
+    if (!modmade) {
+        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+        prefs->setDouble(Glib::ustring("/tools/connector/curvature"), newValue);
+    }
+    else {
+        DocumentUndo::done(doc, _("Change connector curvature"), INKSCAPE_ICON("draw-connector"));
+    }
+
+    _freeze = false;
+}
+
+void
+ConnectorToolbar::spacing_changed()
+{
+    SPDocument *doc = _desktop->getDocument();
+
+    if (!DocumentUndo::getUndoSensitive(doc)) {
+        return;
+    }
+
+    Inkscape::XML::Node *repr = _desktop->namedview->getRepr();
+
+    if ( !repr->attribute("inkscape:connector-spacing") &&
+            ( _spacing_adj->get_value() == defaultConnSpacing )) {
+        // Don't need to update the repr if the attribute doesn't
+        // exist and it is being set to the default value -- as will
+        // happen at startup.
+        return;
+    }
+
+    // quit if run by the attr_changed listener
+    if (_freeze) {
+        return;
+    }
+
+    // in turn, prevent listener from responding
+    _freeze = true;
+
+    repr->setAttributeCssDouble("inkscape:connector-spacing", _spacing_adj->get_value());
+    _desktop->namedview->updateRepr();
+    bool modmade = false;
+
+    std::vector<SPItem *> items;
+    items = get_avoided_items(items, _desktop->layerManager().currentRoot(), _desktop);
+    for (auto item : items) {
+        Geom::Affine m = Geom::identity();
+        avoid_item_move(&m, item);
+        modmade = true;
+    }
+
+    if(modmade) {
+        DocumentUndo::done(doc, _("Change connector spacing"), INKSCAPE_ICON("draw-connector"));
+    }
+    _freeze = false;
+}
+
+void
+ConnectorToolbar::graph_layout()
+{
+    assert(_desktop);
+    if (!_desktop) {
+        return;
+    }
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    // hack for clones, see comment in align-and-distribute.cpp
+    int saved_compensation = prefs->getInt("/options/clonecompensation/value", SP_CLONE_COMPENSATION_UNMOVED);
+    prefs->setInt("/options/clonecompensation/value", SP_CLONE_COMPENSATION_UNMOVED);
+
+    auto tmp = _desktop->getSelection()->items();
+    std::vector<SPItem *> vec(tmp.begin(), tmp.end());
+    graphlayout(vec);
+
+    prefs->setInt("/options/clonecompensation/value", saved_compensation);
+
+    DocumentUndo::done(_desktop->getDocument(), _("Arrange connector network"), INKSCAPE_ICON("dialog-align-and-distribute"));
+}
+
+void
+ConnectorToolbar::length_changed()
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setDouble("/tools/connector/length", _length_adj->get_value());
+}
+
+void
+ConnectorToolbar::directed_graph_layout_toggled()
+{
+    auto prefs = Inkscape::Preferences::get();
+    prefs->setBool("/tools/connector/directedlayout", _directed_item->get_active());
+}
+
+void
+ConnectorToolbar::selection_changed(Inkscape::Selection *selection)
+{
+    SPItem *item = selection->singleItem();
+    if (SP_IS_PATH(item))
+    {
+        gdouble curvature = SP_PATH(item)->connEndPair.getCurvature();
+        bool is_orthog = SP_PATH(item)->connEndPair.isOrthogonal();
+        _orthogonal->set_active(is_orthog);
+        _curvature_adj->set_value(curvature);
+    }
+
+}
+
+void
+ConnectorToolbar::nooverlaps_graph_layout_toggled()
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setBool("/tools/connector/avoidoverlaplayout",
+                _overlap_item->get_active());
+}
+
+void
+ConnectorToolbar::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<ConnectorToolbar *>(data);
+
+    if ( !toolbar->_freeze
+         && (strcmp(name, "inkscape:connector-spacing") == 0) ) {
+        gdouble spacing = repr->getAttributeDouble("inkscape:connector-spacing", defaultConnSpacing);
+
+        toolbar->_spacing_adj->set_value(spacing);
+
+        if (toolbar->_desktop->canvas) {
+            toolbar->_desktop->canvas->grab_focus();
+        }
+    }
+}
+
+}
+}
+}
+
+/*
+  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 :