Re: [gtkmm] Listview Newbie Question

[karim bernardet <bernardet karim wanadoo fr>]

try this

Makefile :

all : main


examplewindow.o : examplewindow.cc
  g++ -c examplewindow.cc `pkg-config --cflags gtkmm-2.0`


main.o : main.cpp
  g++ -c main.cpp `pkg-config --cflags gtkmm-2.0`

main : main.o examplewindow.o
  g++ main.o examplewindow.o -o main `pkg-config --cflags --libs 
gtkmm-2.0`

main.cpp :

#include <gtkmm/main.h>
#include "examplewindow.h"

int main(int argc, char *argv[])
{
Gtk::Main kit(argc, argv);

ExampleWindow window;
Gtk::Main::run(window);

return 0;
}

examplewindow.cc :


#include <iostream>
#include "examplewindow.h"

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::slot(*this, 
&ExampleWindow::on_button_quit) );

//Create the Tree model:
m_refTreeModel = Gtk::TreeStore::create(m_Columns);
m_TreeView.set_model(m_refTreeModel);



// Glib::RefPtr<Gtk::TreeSelection> selection;

selection =  m_TreeView.get_selection();
selection->set_mode(Gtk::SELECTION_MULTIPLE);

//   selection->selected_foreach(SigC::slot(*this, 
&ExampleWindow::selected_row_callback) );

   selection->signal_changed().connect(SigC::slot(*this, 
&ExampleWindow::on_selection_changed));



//Fill the TreeView's model
Gtk::TreeModel::Row row = *(m_refTreeModel->append());
row[m_Columns.m_col_id] = 1;
row[m_Columns.m_col_name] = "Billy Bob";


row = *(m_refTreeModel->append());
row[m_Columns.m_col_id] = 2;
row[m_Columns.m_col_name] = "Joey Jojo";


row = *(m_refTreeModel->append());
row[m_Columns.m_col_id] = 3;
row[m_Columns.m_col_name] = "Rob McRoberts";


//Add the TreeView's view columns:
m_TreeView.append_column("ID", m_Columns.m_col_id);
m_TreeView.append_column("Name", m_Columns.m_col_name);

show_all_children();
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_button_quit()
{
hide();
}
*

void ExampleWindow::selected_row_callback(const 
Gtk::TreeModel::iterator& iter)
{
std::cout << "selected_row_callback" << std::endl;
Gtk::TreeModel::Row row = *iter;
//Do something with the row.
}

void ExampleWindow::on_selection_changed()
{
std::cout << "on_selection_changed" << std::endl;
selection->selected_foreach(SigC::slot(*this, 
&ExampleWindow::selected_row_callback));
}*


examplewindow.h :


#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H

#include <gtkmm.h>

class ExampleWindow : public Gtk::Window
{
public:
ExampleWindow();
virtual ~ExampleWindow();

protected:
//Signal handlers:
virtual void on_button_quit();

void selected_row_callback(const Gtk::TreeModel::iterator& iter);
void on_selection_changed();

//Tree model columns:
class ModelColumns : public Gtk::TreeModel::ColumnRecord
{
public:

  ModelColumns()
  { add(m_col_id); add(m_col_name); }

  Gtk::TreeModelColumn<int> m_col_id;
  Gtk::TreeModelColumn<Glib::ustring> m_col_name;
};

ModelColumns m_Columns;

//Child widgets:
Gtk::VBox m_VBox;

Gtk::ScrolledWindow m_ScrolledWindow;
Gtk::TreeView m_TreeView;
Glib::RefPtr<Gtk::TreeStore> m_refTreeModel;
Glib::RefPtr<Gtk::TreeSelection> selection;

Gtk::HButtonBox m_ButtonBox;
Gtk::Button m_Button_Quit;
};

#endif //GTKMM_EXAMPLEWINDOW_H






Art Schwalbenberg wrote:

> Greetings.
>
>    I'm new to GTK and Gtkmm development. My question is this:
>
> What is the missing piece of the puzzle concerning multiple selection?
>
> I've implemented callback required for the following code
>
>   AvailableFiles->get_selection()->selected_foreach( 
> 		SigC::slot(*this, &MainWindow::AvailableSelectedRows) );
>   AvailableFiles->get_selection()->signal_changed().connect(
> SigC::slot(*this, &MainWindow::AvailableFilesCursorChanged) );
>
> Well the signal_changed() works well enough but I just don't know how
> get the callback function (AvailableSelectedRows) supplied to
> selected_foreach to fire so I can actually get the rows that are
> selected.
>
> If I'm missing something obvious I apologize in advance.
>
>