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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Inkscape::Widgets::LayerSelector - layer selector widget
*
* Authors:
* MenTaLguY <mental@rydia.net>
* Abhishek Sharma
*
* Copyright (C) 2004 MenTaLguY
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <cstring>
#include <string>
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/adaptor/reversed.hpp>
#include <glibmm/i18n.h>
#include "desktop.h"
#include "document-undo.h"
#include "document.h"
#include "layer-manager.h"
#include "ui/widget/layer-selector.h"
#include "ui/dialog/dialog-container.h"
#include "ui/dialog/objects.h"
#include "ui/icon-loader.h"
#include "ui/icon-names.h"
#include "ui/util.h"
#include "object/sp-root.h"
#include "object/sp-item-group.h"
namespace Inkscape {
namespace UI {
namespace Widget {
class AlternateIcons : public Gtk::Box {
public:
AlternateIcons(Gtk::BuiltinIconSize size, Glib::ustring const &a, Glib::ustring const &b)
: Gtk::Box(Gtk::ORIENTATION_HORIZONTAL)
, _a(nullptr)
, _b(nullptr)
{
set_name("AlternateIcons");
if (!a.empty()) {
_a = Gtk::manage(sp_get_icon_image(a, size));
_a->set_no_show_all(true);
add(*_a);
}
if (!b.empty()) {
_b = Gtk::manage(sp_get_icon_image(b, size));
_b->set_no_show_all(true);
add(*_b);
}
setState(false);
}
bool state() const { return _state; }
void setState(bool state) {
_state = state;
if (_state) {
if (_a) _a->hide();
if (_b) _b->show();
} else {
if (_a) _a->show();
if (_b) _b->hide();
}
}
private:
Gtk::Image *_a;
Gtk::Image *_b;
bool _state;
};
LayerSelector::LayerSelector(SPDesktop *desktop)
: Gtk::Box(Gtk::ORIENTATION_HORIZONTAL)
, _desktop(nullptr)
, _observer(new Inkscape::XML::SignalObserver)
{
set_name("LayerSelector");
_layer_name.signal_clicked().connect(sigc::mem_fun(*this, &LayerSelector::_layerChoose));
_layer_name.set_relief(Gtk::RELIEF_NONE);
_layer_name.set_tooltip_text(_("Current layer"));
pack_start(_layer_name, Gtk::PACK_EXPAND_WIDGET);
_eye_label = Gtk::manage(new AlternateIcons(Gtk::ICON_SIZE_MENU,
INKSCAPE_ICON("object-visible"), INKSCAPE_ICON("object-hidden")));
_eye_toggle.add(*_eye_label);
_hide_layer_connection = _eye_toggle.signal_toggled().connect(sigc::mem_fun(*this, &LayerSelector::_hideLayer));
_eye_toggle.set_relief(Gtk::RELIEF_NONE);
_eye_toggle.set_tooltip_text(_("Toggle current layer visibility"));
pack_start(_eye_toggle, Gtk::PACK_EXPAND_PADDING);
_lock_label = Gtk::manage(new AlternateIcons(Gtk::ICON_SIZE_MENU,
INKSCAPE_ICON("object-unlocked"), INKSCAPE_ICON("object-locked")));
_lock_toggle.add(*_lock_label);
_lock_layer_connection = _lock_toggle.signal_toggled().connect(sigc::mem_fun(*this, &LayerSelector::_lockLayer));
_lock_toggle.set_relief(Gtk::RELIEF_NONE);
_lock_toggle.set_tooltip_text(_("Lock or unlock current layer"));
pack_start(_lock_toggle, Gtk::PACK_EXPAND_PADDING);
_layer_name.add(_layer_label);
_layer_label.set_max_width_chars(16);
_layer_label.set_ellipsize(Pango::ELLIPSIZE_END);
_layer_label.set_markup("<i>Unset</i>");
_layer_label.set_valign(Gtk::ALIGN_CENTER);
_observer->signal_changed().connect(sigc::mem_fun(*this, &LayerSelector::_layerModified));
setDesktop(desktop);
}
LayerSelector::~LayerSelector() {
setDesktop(nullptr);
}
void LayerSelector::setDesktop(SPDesktop *desktop) {
if ( desktop == _desktop )
return;
_layer_changed.disconnect();
_desktop = desktop;
if (_desktop) {
_layer_changed = _desktop->layerManager().connectCurrentLayerChanged(sigc::mem_fun(*this, &LayerSelector::_layerChanged));
_layerChanged(_desktop->layerManager().currentLayer());
}
}
/**
* Selects the given layer in the widget.
*/
void LayerSelector::_layerChanged(SPGroup *layer)
{
_layer = layer;
_observer->set(layer);
_layerModified();
}
/**
* If anything happens to the layer, refresh it.
*/
void LayerSelector::_layerModified()
{
auto root = _desktop->layerManager().currentRoot();
bool active = _layer && _layer != root;
if (_label_style) {
_layer_label.get_style_context()->remove_provider(_label_style);
}
auto color_str = std::string("white");
if (active) {
_layer_label.set_text(_layer->defaultLabel());
color_str = SPColor(_layer->highlight_color()).toString();
} else {
_layer_label.set_markup(_layer ? "<i>[root]</i>" : "<i>nothing</i>");
}
Glib::RefPtr<Gtk::StyleContext> style_context = _layer_label.get_style_context();
_label_style = Gtk::CssProvider::create();
_label_style->load_from_data("#LayerSelector label {border-color:" + color_str + ";}");
_layer_label.get_style_context()->add_provider(_label_style, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
_hide_layer_connection.block();
_lock_layer_connection.block();
_eye_toggle.set_sensitive(active);
_lock_toggle.set_sensitive(active);
_eye_label->setState(active && _layer->isHidden());
_eye_toggle.set_active(active && _layer->isHidden());
_lock_label->setState(active && _layer->isLocked());
_lock_toggle.set_active(active && _layer->isLocked());
_hide_layer_connection.unblock();
_lock_layer_connection.unblock();
}
void LayerSelector::_lockLayer()
{
bool lock = _lock_toggle.get_active();
if (auto layer = _desktop->layerManager().currentLayer()) {
layer->setLocked(lock);
DocumentUndo::done(_desktop->getDocument(), lock ? _("Lock layer") : _("Unlock layer"), "");
}
}
void LayerSelector::_hideLayer()
{
bool hide = _eye_toggle.get_active();
if (auto layer = _desktop->layerManager().currentLayer()) {
layer->setHidden(hide);
DocumentUndo::done(_desktop->getDocument(), hide ? _("Hide layer") : _("Unhide layer"), "");
}
}
void LayerSelector::_layerChoose()
{
_desktop->getContainer()->new_dialog("Objects");
}
} // namespace Widget
} // namespace UI
} // namespace Inkscape
/*
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 :
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