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#include "layer_tree.h"
#include "treemodel_wrapper.h"
#include "image_cache.h"
#include "model/wb_layer_tree.h"
#include "model/wb_model_diagram_form.h"
#include "base/string_utilities.h"
#include "linux_utilities/gtk_helpers.h"
LayerTree::LayerTree(wb::WBContextUI *wbui)
: _wbui(wbui)
, _diagram_form(0)
, _column(0)
, _pending_refresh(false)
{
set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
add(_tree);
set_shadow_type(Gtk::SHADOW_IN);
_tree.set_headers_visible(true);
show_all();
_tree.signal_row_activated().connect(sigc::mem_fun(this, &LayerTree::activate_row));
}
LayerTree::~LayerTree()
{
_model->invalidate();
delete _column;
}
void LayerTree::set_model(wb::ModelDiagramForm *model)
{
_diagram_form = model;
_layer_tree= model->get_layer_tree();
if (!_model)
{
_column= new Gtk::TreeModelColumn<Glib::RefPtr<Gdk::Pixbuf> >();
Gtk::TreeViewColumn *vcolumn= Gtk::manage(new Gtk::TreeViewColumn(""));
Gtk::CellRendererPixbuf *prend= Gtk::manage(new Gtk::CellRendererPixbuf());
vcolumn->pack_start(*prend, true);
_model= TreeModelWrapper::create(_layer_tree, &_tree, "LayerTree", bec::NodeId(0));
_model->model().add_generic_column(-1, _column, vcolumn);
_model->model().append_string_column(bec::ValueTreeBE::Name, "", RO, WITH_ICON);
_model->set_expanded_rows_storage(&_expanded_rows);
_tree.set_model(_model);
_tree.set_headers_visible(false);
vcolumn->add_attribute(prend->property_pixbuf(), *_column);
_model->set_fake_column_value_getter(sigc::mem_fun(this, &LayerTree::get_tree_value));
scoped_connect(_layer_tree->tree_changed_signal(),sigc::mem_fun(this, &LayerTree::tree_changed));
}
}
void LayerTree::tree_changed(const bec::NodeId &row, int old_count)
{
if (!_pending_refresh)
Glib::signal_idle().connect(sigc::bind_return(sigc::mem_fun(this, &LayerTree::refresh), false));
_pending_refresh = true;
}
void LayerTree::refresh()
{
_pending_refresh = false;
if (!_selected_icon)
{
_selected_icon= ImageCache::get_instance()->image_from_filename("layer_selected.png", false);
_unselected_icon= ImageCache::get_instance()->image_from_filename("layer_unselected.png", false);
_mixed_icon= ImageCache::get_instance()->image_from_filename("layer_mixed.png", false);
}
Gtk::TreePath first_row, last_row;
std::list<Gtk::TreePath> selected(_tree.get_selection()->get_selected_rows());
_tree.get_visible_range(first_row, last_row);
freeze_notify();
_tree.freeze_notify();
_tree.unset_model();
_layer_tree->refresh();
_tree.set_model(_model);
reexpand_nodes();
if (!first_row.empty())
_tree.scroll_to_row(first_row);
for (std::list<Gtk::TreePath>::const_iterator path = selected.begin(); path != selected.end(); ++path)
_tree.get_selection()->select(*path);
_tree.thaw_notify();
thaw_notify();
}
void LayerTree::reexpand_nodes()
{
expand_tree_nodes_as_in_be(_model, &_tree);
}
void LayerTree::get_tree_value(const Gtk::TreeModel::iterator &iter, int column, GType type, Glib::ValueBase& value)
{
bec::NodeId node= _model->node_for_iter(iter);
std::string sel;
_layer_tree->get_field(node, wb::LayerTreeBE::Selected, sel);
g_value_init(value.gobj(), GDK_TYPE_PIXBUF);
if (sel == "")
g_value_set_object(value.gobj(), _unselected_icon->gobj());
else if (sel == "X")
g_value_set_object(value.gobj(), _selected_icon->gobj());
else
g_value_set_object(value.gobj(), _mixed_icon->gobj());
}
void LayerTree::activate_row(const Gtk::TreePath &path, Gtk::TreeViewColumn *column)
{
bec::NodeId node= _model->node_for_iter(_model->get_iter(path));
_layer_tree->activate_node(node);
}
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