Sophie: gtkmm2.4-documentation-2.17.4-1mdv2010.0 noarch

gtkmm2.4-documentation-2.17.4-1mdv2010.0.noarch.rpm

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<div class="sect1" title="FileChooserDialog">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="sec-dialogs-filechooserdialog"></a>FileChooserDialog</h2></div></div></div>
<p>
The <code class="classname">FileChooserDialog</code> is suitable for use with
"Open" or "Save" menu items.
</p>
<p>
Most of the useful member methods for this class are actually in the
<code class="classname">Gtk::FileChooser</code> base class.
</p>
<p><a class="ulink" href="http://library.gnome.org/devel/gtkmm/unstable/classGtk_1_1FileChooserDialog.html" target="_top">Reference</a></p>
<div class="sect2" title="Example">
<div class="titlepage"><div><div><h3 class="title">
<a name="filechooserdialog-example"></a>Example</h3></div></div></div>
<div class="figure">
<a name="figure-dialogs-filechooser"></a><p class="title"><b>Figure 14.2. FileChooser</b></p>
<div class="figure-contents"><div class="screenshot"><div><img src="figures/dialogs_filechooser.png" alt="FileChooser"></div></div></div>
</div>
<br class="figure-break"><p><a class="ulink" href="http://git.gnome.org/cgit/gtkmm-documentation/tree/examples/book/dialogs/filechooserdialog" target="_top">Source Code</a></p>
<p>File: <code class="filename">examplewindow.h</code>
</p>
<pre class="programlisting">
#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H

#include &lt;gtkmm.h&gt;

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

protected:
  //Signal handlers:
  void on_button_file_clicked();
  void on_button_folder_clicked();

  //Child widgets:
  Gtk::VButtonBox m_ButtonBox;
  Gtk::Button m_Button_File, m_Button_Folder;
};

#endif //GTKMM_EXAMPLEWINDOW_H
</pre>
<p>File: <code class="filename">examplewindow.cc</code>
</p>
<pre class="programlisting">
#include "examplewindow.h"
#include &lt;iostream&gt;


ExampleWindow::ExampleWindow()
: m_Button_File("Choose File"),
  m_Button_Folder("Choose Folder")
{
  set_title("Gtk::FileSelection example");

  add(m_ButtonBox);

  m_ButtonBox.pack_start(m_Button_File);
  m_Button_File.signal_clicked().connect(sigc::mem_fun(*this,
              &amp;ExampleWindow::on_button_file_clicked) );

  m_ButtonBox.pack_start(m_Button_Folder);
  m_Button_Folder.signal_clicked().connect(sigc::mem_fun(*this,
              &amp;ExampleWindow::on_button_folder_clicked) );

  show_all_children();
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_button_folder_clicked()
{
  Gtk::FileChooserDialog dialog("Please choose a folder",
          Gtk::FILE_CHOOSER_ACTION_SELECT_FOLDER);
  dialog.set_transient_for(*this);

  //Add response buttons the the dialog:
  dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
  dialog.add_button("Select", Gtk::RESPONSE_OK);

  int result = dialog.run();

  //Handle the response:
  switch(result)
  {
    case(Gtk::RESPONSE_OK):
    {
      std::cout &lt;&lt; "Select clicked." &lt;&lt; std::endl;
      std::cout &lt;&lt; "Folder selected: " &lt;&lt; dialog.get_filename()
          &lt;&lt; std::endl;
      break;
    }
    case(Gtk::RESPONSE_CANCEL):
    {
      std::cout &lt;&lt; "Cancel clicked." &lt;&lt; std::endl;
      break;
    }
    default:
    {
      std::cout &lt;&lt; "Unexpected button clicked." &lt;&lt; std::endl;
      break;
    }
  }
}

void ExampleWindow::on_button_file_clicked()
{
  Gtk::FileChooserDialog dialog("Please choose a file",
          Gtk::FILE_CHOOSER_ACTION_OPEN);
  dialog.set_transient_for(*this);

  //Add response buttons the the dialog:
  dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
  dialog.add_button(Gtk::Stock::OPEN, Gtk::RESPONSE_OK);

  //Add filters, so that only certain file types can be selected:

  Gtk::FileFilter filter_text;
  filter_text.set_name("Text files");
  filter_text.add_mime_type("text/plain");
  dialog.add_filter(filter_text);

  Gtk::FileFilter filter_cpp;
  filter_cpp.set_name("C/C++ files");
  filter_cpp.add_mime_type("text/x-c");
  filter_cpp.add_mime_type("text/x-c++");
  filter_cpp.add_mime_type("text/x-c-header");
  dialog.add_filter(filter_cpp);

  Gtk::FileFilter filter_any;
  filter_any.set_name("Any files");
  filter_any.add_pattern("*");
  dialog.add_filter(filter_any);

  //Show the dialog and wait for a user response:
  int result = dialog.run();

  //Handle the response:
  switch(result)
  {
    case(Gtk::RESPONSE_OK):
    {
      std::cout &lt;&lt; "Open clicked." &lt;&lt; std::endl;

      //Notice that this is a std::string, not a Glib::ustring.
      std::string filename = dialog.get_filename();
      std::cout &lt;&lt; "File selected: " &lt;&lt;  filename &lt;&lt; std::endl;
      break;
    }
    case(Gtk::RESPONSE_CANCEL):
    {
      std::cout &lt;&lt; "Cancel clicked." &lt;&lt; std::endl;
      break;
    }
    default:
    {
      std::cout &lt;&lt; "Unexpected button clicked." &lt;&lt; std::endl;
      break;
    }
  }
}
</pre>
<p>File: <code class="filename">main.cc</code>
</p>
<pre class="programlisting">
#include &lt;gtkmm/main.h&gt;
#include "examplewindow.h"

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

  ExampleWindow window;
  //Shows the window and returns when it is closed.
  Gtk::Main::run(window);

  return 0;
}
</pre>
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