Murray Cumming wrote:
> On Tue, 2007-06-19 at 12:03 +0200, Jef Driesen wrote:
>> I still don't understand why I need to update the model myself with a
>> CellRendererToggle. Because for a CellRendererText, all I need is:
>>
>> renderer->property_editable() = true;
>
> No, that won't be enough.
>
> This is why we have the append_column_editable() helper methods:
> http://www.gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGtk_1_1TreeView.html#83d537226bbbb054aa792c03248e619f
I don't know why, but it *does* work here. I modified one of the
examples of the gtkmm book to illustrate what I'm doing (see code below).
For the CellRendererToggle, I need to use "signal_toggled" to make the
checkbox editable and the value of "property_activatable" seems to be
irrelevant.
For the CellRendererText, I only need to set "property_editable" without
connecting to "signal_edited".
#include <gtkmm.h>
#include <gtkmm/main.h>
class ExampleWindow : public Gtk::Window {
public:
ExampleWindow();
virtual ~ExampleWindow();
protected:
// Signal handlers:
virtual void on_button_quit();
virtual void on_cell_toggled (const Glib::ustring& path);
virtual void on_cell_edited (const Glib::ustring& path, const
Glib::ustring& text);
// Tree model columns:
class ModelColumns : public Gtk::TreeModel::ColumnRecord {
public:
ModelColumns()
{
add(active);
add(name);
}
Gtk::TreeModelColumn<bool> active;
Gtk::TreeModelColumn<Glib::ustring> name;
};
ModelColumns m_columns;
//Child widgets:
Gtk::VBox m_VBox;
Gtk::ScrolledWindow m_ScrolledWindow;
Gtk::TreeView m_TreeView;
Glib::RefPtr<Gtk::TreeStore> m_refTreeModel;
Gtk::HButtonBox m_ButtonBox;
Gtk::Button m_Button_Quit;
};
int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);
ExampleWindow window;
Gtk::Main::run(window);
return 0;
}
ExampleWindow::ExampleWindow()
: m_Button_Quit("Quit")
{
set_title("Gtk::TreeView (TreeStore) example");
set_border_width(5);
set_default_size(400, 200);
add(m_VBox);
//Add the TreeView, inside a ScrolledWindow, with the button underneath:
m_ScrolledWindow.add(m_TreeView);
//Only show the scrollbars when they are necessary:
m_ScrolledWindow.set_policy(Gtk::POLICY_AUTOMATIC,
Gtk::POLICY_AUTOMATIC);
m_VBox.pack_start(m_ScrolledWindow);
m_VBox.pack_start(m_ButtonBox, Gtk::PACK_SHRINK);
m_ButtonBox.pack_start(m_Button_Quit, Gtk::PACK_SHRINK);
m_ButtonBox.set_border_width(5);
m_ButtonBox.set_layout(Gtk::BUTTONBOX_END);
m_Button_Quit.signal_clicked().connect(sigc::mem_fun(*this,
&ExampleWindow::on_button_quit) );
//Create the Tree model:
m_refTreeModel = Gtk::TreeStore::create(m_columns);
m_TreeView.set_model(m_refTreeModel);
//Fill the TreeView's model
Gtk::TreeModel::Row row = *(m_refTreeModel->append());
row[m_columns.active] = false;
row[m_columns.name] = "Billy Bob";
Gtk::TreeModel::Row childrow =
*(m_refTreeModel->append(row.children()));
childrow[m_columns.active] = true;
childrow[m_columns.name] = "Billy Bob Junior";
childrow = *(m_refTreeModel->append(row.children()));
childrow[m_columns.active] = false;
childrow[m_columns.name] = "Sue Bob";
row = *(m_refTreeModel->append());
row[m_columns.active] = true;
row[m_columns.name] = "Joey Jojo";
row = *(m_refTreeModel->append());
row[m_columns.active] = true;
row[m_columns.name] = "Rob McRoberts";
childrow = *(m_refTreeModel->append(row.children()));
childrow[m_columns.active] = false;
childrow[m_columns.name] = "Xavier McRoberts";
//Add the TreeView's view columns:
//m_TreeView.append_column_editable ("Active", m_columns.active);
//m_TreeView.append_column ("Name", m_columns.name);
Gtk::CellRendererToggle* renderer_active = Gtk::manage( new
Gtk::CellRendererToggle());
//renderer_active->property_activatable () = true;
renderer_active->signal_toggled().connect( sigc::mem_fun(*this,
&ExampleWindow::on_cell_toggled));
Gtk::CellRendererText* renderer_name = Gtk::manage( new
Gtk::CellRendererText() );
renderer_name->property_editable() = true;
//renderer_name->signal_edited().connect( sigc::mem_fun(*this,
&ExampleWindow::on_cell_edited));
Gtk::TreeView::Column* column = Gtk::manage( new
Gtk::TreeView::Column("Name") );
column->pack_start(*renderer_active, false);
column->pack_start(*renderer_name);
column->add_attribute(renderer_active->property_active (),
m_columns.active);
column->add_attribute(renderer_name->property_text (), m_columns.name);
m_TreeView.append_column(*column);
show_all_children();
}
ExampleWindow::~ExampleWindow()
{
}
void ExampleWindow::on_button_quit()
{
hide();
}
void
ExampleWindow::on_cell_toggled (const Glib::ustring& path)
{
Gtk::TreeModel::iterator iter = m_refTreeModel->get_iter (path);
if (iter)
(*iter)[m_columns.active] = !(*iter)[m_columns.active];
}
void
ExampleWindow::on_cell_edited (const Glib::ustring& path, const
Glib::ustring& text)
{
Gtk::TreeModel::iterator iter = m_refTreeModel->get_iter (path);
if (iter)
(*iter)[m_columns.name] = text;
}
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