Move toolbars to ui/toolbar

1 files changed, 668 insertions, 0 deletions

diff --git a/src/ui/toolbar/mesh-toolbar.cpp b/src/ui/toolbar/mesh-toolbar.cpp
new file mode 100644
index 000000000..fdeb736e6
--- /dev/null
+++ b/src/ui/toolbar/mesh-toolbar.cpp
@@ -0,0 +1,668 @@
+/*
+ * Gradient aux toolbar
+ *
+ * Authors:
+ *   bulia byak <bulia@dr.com>
+ *   Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
+ *   Abhishek Sharma
+ *   Tavmjong Bah <tavjong@free.fr>
+ *
+ * Copyright (C) 2012 Tavmjong Bah
+ * Copyright (C) 2007 Johan Engelen
+ * Copyright (C) 2005 authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glibmm/i18n.h>
+#include <gtkmm.h>
+
+#include "mesh-toolbar.h"
+
+#include "desktop-style.h"
+#include "desktop.h"
+#include "document-private.h"
+#include "document-undo.h"
+#include "gradient-chemistry.h"
+#include "gradient-drag.h"
+#include "widgets/ink-action.h"
+#include "widgets/ink-toggle-action.h"
+#include "inkscape.h"
+#include "widgets/toolbox.h"
+#include "verbs.h"
+
+#include "object/sp-defs.h"
+#include "object/sp-mesh-gradient.h"
+#include "object/sp-stop.h"
+#include "style.h"
+
+#include "svg/css-ostringstream.h"
+
+#include "ui/icon-names.h"
+#include "ui/tools/gradient-tool.h"
+#include "ui/tools/mesh-tool.h"
+#include "ui/widget/color-preview.h"
+#include "ui/widget/ink-select-one-action.h"
+
+#include "widgets/ege-adjustment-action.h"
+#include "widgets/gradient-image.h"
+#include "widgets/spinbutton-events.h"
+
+using Inkscape::DocumentUndo;
+using Inkscape::UI::ToolboxFactory;
+using Inkscape::UI::PrefPusher;
+using Inkscape::UI::Tools::MeshTool;
+
+static bool blocked = false;
+
+//########################
+//##        Mesh        ##
+//########################
+
+
+// Get a list of selected meshes taking into account fill/stroke toggles
+std::vector<SPMeshGradient *>  ms_get_dt_selected_gradients(Inkscape::Selection *selection)
+{
+    std::vector<SPMeshGradient *> ms_selected;
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    bool edit_fill   = prefs->getBool("/tools/mesh/edit_fill",   true);
+    bool edit_stroke = prefs->getBool("/tools/mesh/edit_stroke", true);
+
+    auto itemlist= selection->items();
+    for(auto i=itemlist.begin();i!=itemlist.end();++i){
+        SPItem *item = *i;// get the items gradient, not the getVector() version
+        SPStyle *style = item->style;
+
+        if (style) {
+
+            
+            if (edit_fill   && style->fill.isPaintserver()) {
+                SPPaintServer *server = item->style->getFillPaintServer();
+                SPMeshGradient *mesh = dynamic_cast<SPMeshGradient *>(server);
+                if (mesh) {
+                    ms_selected.push_back(mesh);
+                }
+            }
+
+            if (edit_stroke && style->stroke.isPaintserver()) {
+                SPPaintServer *server = item->style->getStrokePaintServer();
+                SPMeshGradient *mesh = dynamic_cast<SPMeshGradient *>(server);
+                if (mesh) {
+                    ms_selected.push_back(mesh);
+                }
+            }
+        }
+
+    }
+    return ms_selected;
+}
+
+
+/*
+ * Get the current selection status from the desktop
+ */
+void ms_read_selection( Inkscape::Selection *selection,
+                        SPMeshGradient *&ms_selected,
+                        bool &ms_selected_multi,
+                        SPMeshType &ms_type,
+                        bool &ms_type_multi )
+{
+    ms_selected = NULL;
+    ms_selected_multi = false;
+    ms_type = SP_MESH_TYPE_COONS;
+    ms_type_multi = false;
+
+    bool first = true;
+
+    // Read desktop selection, taking into account fill/stroke toggles
+    std::vector<SPMeshGradient *> meshes = ms_get_dt_selected_gradients( selection );
+    for (auto i = meshes.begin(); i != meshes.end(); ++i) {
+        if (first) {
+            ms_selected = (*i);
+            ms_type = (*i)->type;
+            first = false;
+        } else {
+            if (ms_selected != (*i)) {
+                ms_selected_multi = true;
+            }
+            if (ms_type != (*i)->type) {
+                ms_type_multi = true;
+            }
+        }
+    }
+}
+
+/*
+ * Core function, setup all the widgets whenever something changes on the desktop
+ */
+static void ms_tb_selection_changed(Inkscape::Selection * /*selection*/, gpointer data)
+{
+
+    // std::cout << "ms_tb_selection_changed" << std::endl;
+
+    if (blocked)
+        return;
+
+    SPDesktop *desktop = static_cast<SPDesktop *>(g_object_get_data(G_OBJECT(data), "desktop"));
+    if (!desktop) {
+        return;
+    }
+
+    Inkscape::Selection *selection = desktop->getSelection(); // take from desktop, not from args
+    if (selection) {
+        // ToolBase *ev = sp_desktop_event_context(desktop);
+        // GrDrag *drag = NULL;
+        // if (ev) {
+        //     drag = ev->get_drag();
+        //     // Hide/show handles?
+        // }
+
+        SPMeshGradient *ms_selected = 0;
+        SPMeshType ms_type = SP_MESH_TYPE_COONS;
+        bool ms_selected_multi = false;
+        bool ms_type_multi = false; 
+        ms_read_selection( selection, ms_selected, ms_selected_multi, ms_type, ms_type_multi );
+        // std::cout << "   type: " << ms_type << std::endl;
+        
+        InkSelectOneAction* type = static_cast<InkSelectOneAction*> (g_object_get_data(G_OBJECT(data), "mesh_select_type_action"));
+        if (type) {
+            type->set_sensitive(!ms_type_multi);
+            blocked = TRUE;
+            type->set_active(ms_type);
+            blocked = FALSE;
+        }
+    }
+}
+
+
+static void ms_tb_selection_modified(Inkscape::Selection *selection, guint /*flags*/, gpointer data)
+{
+    ms_tb_selection_changed(selection, data);
+}
+
+static void ms_drag_selection_changed(gpointer /*dragger*/, gpointer data)
+{
+    ms_tb_selection_changed(NULL, data);
+
+}
+
+static void ms_defs_release(SPObject * /*defs*/, GObject *widget)
+{
+    ms_tb_selection_changed(NULL, widget);
+}
+
+static void ms_defs_modified(SPObject * /*defs*/, guint /*flags*/, GObject *widget)
+{
+    ms_tb_selection_changed(NULL, widget);
+}
+
+/*
+ * Callback functions for user actions
+ */
+
+static void ms_new_geometry_changed( GObject * /*tbl*/, int mode )
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setInt("/tools/mesh/mesh_geometry", mode);
+}
+
+static void ms_new_fillstroke_changed( GObject * /*tbl*/, int mode )
+{
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setInt("/tools/mesh/newfillorstroke", mode);
+}
+
+static void ms_row_changed(GtkAdjustment *adj, GObject * /*tbl*/ )
+{
+    if (blocked) {
+        return;
+    }
+
+    blocked = TRUE;
+
+    int rows = gtk_adjustment_get_value(adj);
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    prefs->setInt("/tools/mesh/mesh_rows", rows);
+
+    blocked = FALSE;
+}
+
+static void ms_col_changed(GtkAdjustment *adj, GObject * /*tbl*/ )
+{
+    if (blocked) {
+        return;
+    }
+
+    blocked = TRUE;
+
+    int cols = gtk_adjustment_get_value(adj);
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    prefs->setInt("/tools/mesh/mesh_cols", cols);
+
+    blocked = FALSE;
+}
+
+/**
+ * Sets mesh type: Coons, Bicubic
+ */
+static void ms_type_changed( GObject *tbl, int mode )
+{
+    if (blocked) {
+        return;
+    }
+
+    SPDesktop *desktop = static_cast<SPDesktop *>(g_object_get_data(tbl, "desktop"));
+    Inkscape::Selection *selection = desktop->getSelection();
+    std::vector<SPMeshGradient *> meshes = ms_get_dt_selected_gradients(selection);
+
+    SPMeshType type = (SPMeshType) mode;
+    for (auto i = meshes.begin(); i != meshes.end(); ++i) {
+        (*i)->type = type;
+        (*i)->type_set = true;
+        (*i)->updateRepr();
+    }
+    if (!meshes.empty() ) {
+        DocumentUndo::done(desktop->getDocument(), SP_VERB_CONTEXT_MESH,_("Set mesh type"));
+    }
+}
+
+/** Temporary hack: Returns the mesh tool in the active desktop.
+ * Will go away during tool refactoring. */
+static MeshTool *get_mesh_tool()
+{
+    MeshTool *tool = 0;
+    if (SP_ACTIVE_DESKTOP ) {
+        Inkscape::UI::Tools::ToolBase *ec = SP_ACTIVE_DESKTOP->event_context;
+        if (SP_IS_MESH_CONTEXT(ec)) {
+            tool = static_cast<MeshTool*>(ec);
+        }
+    }
+    return tool;
+}
+
+static void ms_toggle_sides(void)
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        sp_mesh_context_corner_operation( mt, MG_CORNER_SIDE_TOGGLE );
+    }
+}
+
+static void ms_make_elliptical(void)
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        sp_mesh_context_corner_operation( mt, MG_CORNER_SIDE_ARC );
+    }
+}
+
+static void ms_pick_colors(void)
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        sp_mesh_context_corner_operation( mt, MG_CORNER_COLOR_PICK );
+    }
+}
+
+static void ms_fit_mesh(void)
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        sp_mesh_context_fit_mesh_in_bbox( mt );
+    }
+}
+
+static void ms_toggle_handles(void)
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        GrDrag *drag = mt->_grdrag;
+        drag->refreshDraggers();
+    }
+}
+
+static void ms_toggle_fill_stroke(InkToggleAction * /*act*/, gpointer data)
+{
+    MeshTool *mt = get_mesh_tool();
+    if (mt) {
+        GrDrag *drag = mt->_grdrag;
+        drag->updateDraggers();
+        drag->updateLines();
+        drag->updateLevels();
+        ms_tb_selection_changed(NULL, data); // Need to update Type widget
+    }
+}
+
+static void ms_warning_popup(void)
+{
+    char *msg = _("Mesh gradients are part of SVG 2:\n"
+                  "* Syntax may change.\n"
+                  "* Web browser implementation is not guaranteed.\n"
+                  "\n"
+                  "For web: convert to bitmap (Edit->Make bitmap copy).\n"
+                  "For print: export to PDF.");
+    Gtk::MessageDialog dialog(msg, false, Gtk::MESSAGE_WARNING,
+                              Gtk::BUTTONS_OK, true);
+    dialog.run();
+
+}
+
+static void mesh_toolbox_watch_ec(SPDesktop* dt, Inkscape::UI::Tools::ToolBase* ec, GObject* holder);
+
+/**
+ * Mesh auxiliary toolbar construction and setup.
+ * Don't forget to add to XML in widgets/toolbox.cpp!
+ *
+ */
+void sp_mesh_toolbox_prep(SPDesktop * desktop, GtkActionGroup* mainActions, GObject* holder)
+{
+    GtkIconSize secondarySize = ToolboxFactory::prefToSize("/toolbox/secondary", 1);
+
+    EgeAdjustmentAction* eact = 0;
+
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+    /* New mesh: normal or conical */
+    {
+        InkSelectOneActionColumns columns;
+
+        Glib::RefPtr<Gtk::ListStore> store = Gtk::ListStore::create(columns);
+
+        Gtk::TreeModel::Row row;
+
+        row = *(store->append());
+        row[columns.col_label    ] = _("normal");
+        row[columns.col_tooltip  ] = _("Create mesh gradient");
+        row[columns.col_icon     ] = INKSCAPE_ICON("paint-gradient-mesh");
+        row[columns.col_sensitive] = true;
+
+        row = *(store->append());
+        row[columns.col_label    ] = _("conical");
+        row[columns.col_tooltip  ] = _("Create conical gradient");
+        row[columns.col_icon     ] = INKSCAPE_ICON("paint-gradient-conical");
+        row[columns.col_sensitive] = true;
+
+        InkSelectOneAction* act =
+            InkSelectOneAction::create( "MeshNewTypeAction", // Name
+                                        _("New:"),           // Label
+                                        "",                  // Tooltip
+                                        "Not Used",          // Icon
+                                        store );             // Tree store
+
+        act->use_radio( true );
+        act->use_group_label( true );
+        gint mode = prefs->getInt("/tools/mesh/mesh_geometry", SP_MESH_GEOMETRY_NORMAL);
+        act->set_active( mode );
+
+        gtk_action_group_add_action( mainActions, GTK_ACTION( act->gobj() ));
+        g_object_set_data( holder, "mesh_new_type_mode", act );
+
+        act->signal_changed().connect(sigc::bind<0>(sigc::ptr_fun(&ms_new_geometry_changed), holder));
+    }
+
+    /* New gradient on fill or stroke*/
+    {
+        InkSelectOneActionColumns columns;
+
+        Glib::RefPtr<Gtk::ListStore> store = Gtk::ListStore::create(columns);
+
+        Gtk::TreeModel::Row row;
+
+        row = *(store->append());
+        row[columns.col_label    ] = _("fill");
+        row[columns.col_tooltip  ] = _("Create gradient in the fill");
+        row[columns.col_icon     ] = INKSCAPE_ICON("object-fill");
+        row[columns.col_sensitive] = true;
+
+        row = *(store->append());
+        row[columns.col_label    ] = _("stroke");
+        row[columns.col_tooltip  ] = _("Create gradient in the stroke");
+        row[columns.col_icon     ] = INKSCAPE_ICON("object-stroke");
+        row[columns.col_sensitive] = true;
+
+        InkSelectOneAction* act =
+            InkSelectOneAction::create( "MeshNewFillStrokeAction", // Name
+                                        "",                  // Label
+                                        "",                  // Tooltip
+                                        "Not Used",          // Icon
+                                        store );             // Tree store
+
+        act->use_radio( true );
+        act->use_group_label( false );
+        gint mode = prefs->getInt("/tools/mesh/newfillorstroke");
+        act->set_active( mode );
+
+        gtk_action_group_add_action( mainActions, GTK_ACTION( act->gobj() ));
+        g_object_set_data( holder, "mesh_new_type_mode", act );
+
+        act->signal_changed().connect(sigc::bind<0>(sigc::ptr_fun(&ms_new_fillstroke_changed), holder));
+    }
+
+    /* Number of mesh rows */
+    {
+        gchar const** labels = NULL;
+        gdouble values[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+        eact = create_adjustment_action( "MeshRowAction",
+                                         _("Rows"), _("Rows:"), _("Number of rows in new mesh"),
+                                         "/tools/mesh/mesh_rows", 1,
+                                         GTK_WIDGET(desktop->canvas), holder, FALSE, NULL,
+                                         1, 20, 1, 1,
+                                         labels, values, 0,
+                                         ms_row_changed, NULL /*unit tracker*/,
+                                         1.0, 0 );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(eact) );
+        gtk_action_set_sensitive( GTK_ACTION(eact), TRUE );
+    }
+
+    /* Number of mesh columns */
+    {
+        gchar const** labels = NULL;
+        gdouble values[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
+        eact = create_adjustment_action( "MeshColumnAction",
+                                         _("Columns"), _("Columns:"), _("Number of columns in new mesh"),
+                                         "/tools/mesh/mesh_cols", 1,
+                                         GTK_WIDGET(desktop->canvas), holder, FALSE, NULL,
+                                         1, 20, 1, 1,
+                                         labels, values, 0,
+                                         ms_col_changed, NULL /*unit tracker*/,
+                                         1.0, 0 );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(eact) );
+        gtk_action_set_sensitive( GTK_ACTION(eact), TRUE );
+    }
+
+    /* Edit fill mesh */
+    {
+        InkToggleAction* act = ink_toggle_action_new( "MeshEditFillAction",
+                                                      _("Edit Fill"),
+                                                      _("Edit fill mesh"),
+                                                      INKSCAPE_ICON("object-fill"),
+                                                      secondarySize );
+        gtk_action_group_add_action( mainActions, GTK_ACTION( act ) );
+        PrefPusher *pusher = new PrefPusher(GTK_TOGGLE_ACTION(act), "/tools/mesh/edit_fill");
+        g_signal_connect( holder, "destroy", G_CALLBACK(delete_prefspusher), pusher);
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_toggle_fill_stroke), holder);
+    }
+
+    /* Edit stroke mesh */
+    {
+        InkToggleAction* act = ink_toggle_action_new( "MeshEditStrokeAction",
+                                                      _("Edit Stroke"),
+                                                      _("Edit stroke mesh"),
+                                                      INKSCAPE_ICON("object-stroke"),
+                                                      secondarySize );
+        gtk_action_group_add_action( mainActions, GTK_ACTION( act ) );
+        PrefPusher *pusher = new PrefPusher(GTK_TOGGLE_ACTION(act), "/tools/mesh/edit_stroke");
+        g_signal_connect( holder, "destroy", G_CALLBACK(delete_prefspusher), pusher);
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_toggle_fill_stroke), holder);
+    }
+
+    /* Show/hide side and tensor handles */
+    {
+        InkToggleAction* act = ink_toggle_action_new( "MeshShowHandlesAction",
+                                                      _("Show Handles"),
+                                                      _("Show handles"),
+                                                      INKSCAPE_ICON("show-node-handles"),
+                                                      secondarySize );
+        gtk_action_group_add_action( mainActions, GTK_ACTION( act ) );
+        PrefPusher *pusher = new PrefPusher(GTK_TOGGLE_ACTION(act), "/tools/mesh/show_handles");
+        g_signal_connect( holder, "destroy", G_CALLBACK(delete_prefspusher), pusher);
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_toggle_handles), 0);
+    }
+
+    g_object_set_data(holder, "desktop", desktop);
+
+    desktop->connectEventContextChanged(sigc::bind(sigc::ptr_fun(mesh_toolbox_watch_ec), holder));
+
+    /* Warning */
+    {
+        InkAction* act = ink_action_new( "MeshWarningAction",
+                                         _("WARNING: Mesh SVG Syntax Subject to Change"),
+                                         _("WARNING: Mesh SVG Syntax Subject to Change"),
+                                         INKSCAPE_ICON("dialog-warning"),
+                                         secondarySize );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(act) );
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_warning_popup), holder );
+        gtk_action_set_sensitive( GTK_ACTION(act), TRUE );
+    }
+
+    /* Type */
+    {
+        InkSelectOneActionColumns columns;
+
+        Glib::RefPtr<Gtk::ListStore> store = Gtk::ListStore::create(columns);
+
+        Gtk::TreeModel::Row row;
+
+        row = *(store->append());
+        row[columns.col_label    ] = C_("Type", "Coons");
+        row[columns.col_tooltip  ] = "";
+        row[columns.col_icon     ] = "NotUsed";
+        row[columns.col_sensitive] = true;
+
+        row = *(store->append());
+        row[columns.col_label    ] = _("Bicubic");
+        row[columns.col_tooltip  ] = "";
+        row[columns.col_icon     ] = "NotUsed";
+        row[columns.col_sensitive] = true;
+
+        // TRANSLATORS: Type of Smoothing. See https://en.wikipedia.org/wiki/Coons_patch
+        InkSelectOneAction* act =
+            InkSelectOneAction::create( "MeshSmoothAction",  // Name
+                                        _("Smoothing"),      // Label
+                                        _("Coons: no smothing. Bicubic: smothing across patch boundaries."),               // Tooltip
+                                        "Not Used",          // Icon
+                                        store );             // Tree store
+
+        act->use_radio( false );
+        act->use_label( true );
+        act->use_icon( false );
+        act->use_group_label( true );
+        act->set_sensitive( false );
+        act->set_active( 0 );
+
+        gtk_action_group_add_action( mainActions, GTK_ACTION( act->gobj() ));
+        g_object_set_data( holder, "mesh_select_type_action", act );
+
+        act->signal_changed().connect(sigc::bind<0>(sigc::ptr_fun(&ms_type_changed), holder));
+    }
+
+    {
+        InkAction* act = ink_action_new( "MeshToggleSidesAction",
+                                         _("Toggle Sides"),
+                                         _("Toggle selected sides between Beziers and lines."),
+                                         INKSCAPE_ICON("node-segment-line"),
+                                         secondarySize );
+        g_object_set( act, "short_label", _("Toggle side:"), NULL );
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_toggle_sides), 0 );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(act) );
+    }
+
+    {
+        InkAction* act = ink_action_new( "MeshMakeEllipticalAction",
+                                         _("Make elliptical"),
+                                         _("Make selected sides elliptical by changing length of handles. Works best if handles already approximate ellipse."),
+                                         INKSCAPE_ICON("node-segment-curve"),
+                                         secondarySize );
+        g_object_set( act, "short_label", _("Make elliptical:"), NULL );
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_make_elliptical), 0 );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(act) );
+    }
+
+    {
+        InkAction* act = ink_action_new( "MeshPickColorsAction",
+                                         _("Pick colors:"),
+                                         _("Pick colors for selected corner nodes from underneath mesh."),
+                                         INKSCAPE_ICON("color-picker"),
+                                         secondarySize );
+        g_object_set( act, "short_label", _("Pick Color"), NULL );
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_pick_colors), 0 );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(act) );
+    }
+
+
+    {
+        InkAction* act = ink_action_new( "MeshFitInBoundingBoxAction",
+                                         _("Scale mesh to bounding box:"),
+                                         _("Scale mesh to fit inside bounding box."),
+                                         INKSCAPE_ICON("mesh-gradient-fit"),
+                                         secondarySize );
+        g_object_set( act, "short_label", _("Fit mesh"), NULL );
+        g_signal_connect_after( G_OBJECT(act), "activate", G_CALLBACK(ms_fit_mesh), 0 );
+        gtk_action_group_add_action( mainActions, GTK_ACTION(act) );
+    }
+
+}
+
+static void mesh_toolbox_watch_ec(SPDesktop* desktop, Inkscape::UI::Tools::ToolBase* ec, GObject* holder)
+{
+    static sigc::connection c_selection_changed;
+    static sigc::connection c_selection_modified;
+    static sigc::connection c_subselection_changed;
+    static sigc::connection c_defs_release;
+    static sigc::connection c_defs_modified;
+
+    if (SP_IS_MESH_CONTEXT(ec)) {
+        // connect to selection modified and changed signals
+        Inkscape::Selection *selection = desktop->getSelection();
+        SPDocument *document = desktop->getDocument();
+
+        c_selection_changed = selection->connectChanged(sigc::bind(sigc::ptr_fun(&ms_tb_selection_changed), holder));
+        c_selection_modified = selection->connectModified(sigc::bind(sigc::ptr_fun(&ms_tb_selection_modified), holder));
+        c_subselection_changed = desktop->connectToolSubselectionChanged(sigc::bind(sigc::ptr_fun(&ms_drag_selection_changed), holder));
+
+        c_defs_release = document->getDefs()->connectRelease(sigc::bind<1>(sigc::ptr_fun(&ms_defs_release), holder));
+        c_defs_modified = document->getDefs()->connectModified(sigc::bind<2>(sigc::ptr_fun(&ms_defs_modified), holder));
+        ms_tb_selection_changed(selection, holder);
+    } else {
+        if (c_selection_changed)
+            c_selection_changed.disconnect();
+        if (c_selection_modified)
+            c_selection_modified.disconnect();
+        if (c_subselection_changed)
+            c_subselection_changed.disconnect();
+        if (c_defs_release)
+            c_defs_release.disconnect();
+        if (c_defs_modified)
+            c_defs_modified.disconnect();
+    }
+}
+
+/*
+  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 :