static void
sp_gradient_context_add_stop_near_point (SPGradientContext *rc, SPItem *item, Geom::Point mouse_p, guint32 /*etime*/)
{
// item is the selected item. mouse_p the location in doc coordinates of where to add the stop
SPEventContext *ec = SP_EVENT_CONTEXT(rc);
SPDesktop *desktop = SP_EVENT_CONTEXT (rc)->desktop;
double tolerance = (double) ec->tolerance;
ec->get_drag()->addStopNearPoint (item, mouse_p, tolerance/desktop->current_zoom());
sp_document_done (sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT,
_("Add gradient stop"));
ec->get_drag()->updateDraggers();
}
/**
Split row/column near the mouse point.
*/
static void sp_mesh_context_split_near_point(SPMeshContext *rc, SPItem *item, Geom::Point mouse_p, guint32 /*etime*/)
{
#ifdef DEBUG_MESH
std::cout << "sp_mesh_context_split_near_point: entrance: " << mouse_p << std::endl;
#endif
// item is the selected item. mouse_p the location in doc coordinates of where to add the stop
SPEventContext *ec = SP_EVENT_CONTEXT(rc);
SPDesktop *desktop = SP_EVENT_CONTEXT (rc)->desktop;
double tolerance = (double) ec->tolerance;
ec->get_drag()->addStopNearPoint (item, mouse_p, tolerance/desktop->current_zoom());
DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_MESH,
_("Split mesh row/column"));
ec->get_drag()->updateDraggers();
}
void
gr_item_activate (GtkMenuItem *menuitem, gpointer data)
{
SPGradient *gr = (SPGradient *) g_object_get_data (G_OBJECT (menuitem), "gradient");
gr = sp_gradient_ensure_vector_normalized(gr);
SPDesktop *desktop = (SPDesktop *) data;
Inkscape::Selection *selection = sp_desktop_selection (desktop);
SPEventContext *ev = sp_desktop_event_context (desktop);
gr_apply_gradient (selection, ev? ev->get_drag() : NULL, gr);
sp_document_done (sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT,
_("Assign gradient to object"));
}
static void
gr_tb_selection_changed (Inkscape::Selection *, gpointer data)
{
GtkWidget *widget = (GtkWidget *) data;
SPDesktop *desktop = (SPDesktop *) g_object_get_data (G_OBJECT(widget), "desktop");
if (!desktop)
return;
Inkscape::Selection *selection = sp_desktop_selection (desktop); // take from desktop, not from args
if (!selection)
return;
SPEventContext *ev = sp_desktop_event_context (desktop);
GtkWidget *om = (GtkWidget *) g_object_get_data (G_OBJECT (widget), "menu");
if (om) gtk_widget_destroy (om);
SPGradient *gr_selected = NULL;
bool gr_multi = false;
SPGradientSpread spr_selected = (SPGradientSpread) INT_MAX; // meaning undefined
bool spr_multi = false;
gr_read_selection (selection, ev? ev->get_drag() : NULL, &gr_selected, &gr_multi, &spr_selected, &spr_multi);
om = gr_vector_list (desktop, selection->isEmpty(), gr_selected, gr_multi);
g_object_set_data (G_OBJECT (widget), "menu", om);
GtkWidget *buttons = (GtkWidget *) g_object_get_data (G_OBJECT(widget), "buttons");
gtk_widget_set_sensitive (buttons, (gr_selected && !gr_multi));
gtk_box_pack_start (GTK_BOX (widget), om, TRUE, TRUE, 0);
gtk_widget_show_all (widget);
}
GtkWidget *
gr_change_widget (SPDesktop *desktop)
{
Inkscape::Selection *selection = sp_desktop_selection (desktop);
SPDocument *document = sp_desktop_document (desktop);
SPEventContext *ev = sp_desktop_event_context (desktop);
SPGradient *gr_selected = NULL;
bool gr_multi = false;
SPGradientSpread spr_selected = (SPGradientSpread) INT_MAX; // meaning undefined
bool spr_multi = false;
GtkTooltips *tt = gtk_tooltips_new();
gr_read_selection (selection, ev? ev->get_drag() : NULL, &gr_selected, &gr_multi, &spr_selected, &spr_multi);
GtkWidget *widget = gtk_hbox_new(FALSE, FALSE);
gtk_object_set_data(GTK_OBJECT(widget), "dtw", desktop->canvas);
g_object_set_data (G_OBJECT (widget), "desktop", desktop);
GtkWidget *om = gr_vector_list (desktop, selection->isEmpty(), gr_selected, gr_multi);
g_object_set_data (G_OBJECT (widget), "menu", om);
gtk_box_pack_start (GTK_BOX (widget), om, TRUE, TRUE, 0);
{
GtkWidget *buttons = gtk_hbox_new(FALSE, 1);
/* Edit... */
{
GtkWidget *hb = gtk_hbox_new(FALSE, 1);
GtkWidget *b = gtk_button_new_with_label(_("Edit..."));
gtk_tooltips_set_tip(tt, b, _("Edit the stops of the gradient"), NULL);
gtk_widget_show(b);
gtk_container_add(GTK_CONTAINER(hb), b);
gtk_signal_connect(GTK_OBJECT(b), "clicked", GTK_SIGNAL_FUNC(gr_edit), widget);
gtk_box_pack_start (GTK_BOX(buttons), hb, FALSE, FALSE, 0);
}
gtk_box_pack_end (GTK_BOX(widget), buttons, FALSE, FALSE, 0);
g_object_set_data (G_OBJECT(widget), "buttons", buttons);
gtk_widget_set_sensitive (buttons, (gr_selected && !gr_multi));
}
// connect to selection modified and changed signals
sigc::connection *conn1 = new sigc::connection (selection->connectChanged(
sigc::bind (
sigc::ptr_fun(&gr_tb_selection_changed),
(gpointer)widget )
));
sigc::connection *conn2 = new sigc::connection (selection->connectModified(
sigc::bind (
sigc::ptr_fun(&gr_tb_selection_modified),
(gpointer)widget )
));
sigc::connection *conn3 = new sigc::connection (desktop->connectToolSubselectionChanged(
sigc::bind (
sigc::ptr_fun(&gr_drag_selection_changed),
(gpointer)widget )
));
// when widget is destroyed, disconnect
g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(gr_disconnect_sigc), conn1);
g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(gr_disconnect_sigc), conn2);
g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(gr_disconnect_sigc), conn3);
// connect to release and modified signals of the defs (i.e. when someone changes gradient)
sigc::connection *release_connection = new sigc::connection();
*release_connection = SP_DOCUMENT_DEFS(document)->connectRelease(sigc::bind<1>(sigc::ptr_fun(&gr_defs_release), widget));
sigc::connection *modified_connection = new sigc::connection();
*modified_connection = SP_DOCUMENT_DEFS(document)->connectModified(sigc::bind<2>(sigc::ptr_fun(&gr_defs_modified), widget));
// when widget is destroyed, disconnect
g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(gr_disconnect_sigc), release_connection);
g_signal_connect(G_OBJECT(widget), "destroy", G_CALLBACK(gr_disconnect_sigc), modified_connection);
gtk_widget_show_all (widget);
return widget;
}