Fix return value of wxCountingOutputStream::LastWrite().

[wxWidgets.git] / src / gtk / filedlg.cpp

diff --git a/src/gtk/filedlg.cpp b/src/gtk/filedlg.cpp
index e3b9952413b701231e69ce3bb6456f17c562c3ea..aa00e8c42198d4f150beb36503f0280e362377e9 100644 (file)
--- a/src/gtk/filedlg.cpp
+++ b/src/gtk/filedlg.cpp
@@ -1,237 +1,443 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        filedlg.cpp
-// Purpose:
-// Author:      Robert Roebling
+// Name:        src/gtk/filedlg.cpp
+// Purpose:     native implementation of wxFileDialog
+// Author:      Robert Roebling, Zbigniew Zagorski, Mart Raudsepp

 // Id:          $Id$
 // Id:          $Id$

-// Copyright:   (c) 1998 Robert Roebling
+// Copyright:   (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski, 2005 Mart Raudsepp

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "filedlg.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_FILEDLG

 
 #include "wx/filedlg.h"
 
 #include "wx/filedlg.h"

-#include "wx/utils.h"
-#include "wx/intl.h"
-#include "wx/generic/msgdlgg.h"

 
 

-#include "gtk/gtk.h"
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/msgdlg.h"
+#endif

 
 

-//-----------------------------------------------------------------------------
-// idle system
-//-----------------------------------------------------------------------------
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"

 
 

-extern void wxapp_install_idle_handler();
-extern bool g_isIdle;
+#ifdef __UNIX__
+#include <unistd.h> // chdir
+#endif

 
 

-//-----------------------------------------------------------------------------
-// "delete_event"
-//-----------------------------------------------------------------------------
+#include "wx/filename.h" // wxFilename
+#include "wx/tokenzr.h" // wxStringTokenizer
+#include "wx/filefn.h" // ::wxGetCwd
+#include "wx/testing.h"

 
 

-static
-bool gtk_filedialog_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxDialog *win )
+extern "C"

 {
 {

-    if (g_isIdle) wxapp_install_idle_handler();
+static void gtk_filedialog_response_callback(GtkWidget * WXUNUSED(w),
+                                             gint response,
+                                             wxFileDialog *dialog)
+{
+    if (response == GTK_RESPONSE_ACCEPT)
+        dialog->GTKOnAccept();
+    else    // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
+        dialog->GTKOnCancel();
+}
+
+static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
+                                                   gpointer user_data)
+{
+    GtkWidget *preview = GTK_WIDGET(user_data);

 
 

-/*
-    printf( "OnDelete from " );
-    if (win->GetClassInfo() && win->GetClassInfo()->GetClassName())
-        printf( win->GetClassInfo()->GetClassName() );
-    printf( ".\n" );
-*/
+    wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));

 
 

-    win->Close();
+    if ( !filename )
+        return;

 
 

-    return TRUE;
+    GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL);
+    gboolean have_preview = pixbuf != NULL;
+
+    gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf);
+    if ( pixbuf )
+        g_object_unref (pixbuf);
+
+    gtk_file_chooser_set_preview_widget_active(chooser, have_preview);
+}
+
+} // extern "C"
+
+void wxFileDialog::AddChildGTK(wxWindowGTK* child)
+{
+    // allow dialog to be resized smaller horizontally
+    gtk_widget_set_size_request(
+        child->m_widget, child->GetMinWidth(), child->m_height);
+
+    gtk_file_chooser_set_extra_widget(
+        GTK_FILE_CHOOSER(m_widget), child->m_widget);

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------

-// "clicked" for OK-button
+// wxFileDialog

 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 

-static
-void gtk_filedialog_ok_callback( GtkWidget *WXUNUSED(widget), wxFileDialog *dialog )
+IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)
+
+BEGIN_EVENT_TABLE(wxFileDialog,wxFileDialogBase)
+    EVT_SIZE(wxFileDialog::OnSize)
+END_EVENT_TABLE()
+
+wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
+                           const wxString& defaultDir,
+                           const wxString& defaultFileName,
+                           const wxString& wildCard,
+                           long style, const wxPoint& pos,
+                           const wxSize& sz,
+                           const wxString& name)
+    : wxFileDialogBase()

 {
 {

-    if (g_isIdle) wxapp_install_idle_handler();
+    Create(parent, message, defaultDir, defaultFileName, wildCard, style, pos, sz, name);
+}
+
+bool wxFileDialog::Create(wxWindow *parent, const wxString& message,
+                           const wxString& defaultDir,
+                           const wxString& defaultFileName,
+                           const wxString& wildCard,
+                           long style, const wxPoint& pos,
+                           const wxSize& sz,
+                           const wxString& name)
+{
+    parent = GetParentForModalDialog(parent, style);
+
+    if (!wxFileDialogBase::Create(parent, message, defaultDir, defaultFileName,
+                                  wildCard, style, pos, sz, name))
+    {
+        return false;
+    }
+
+    if (!PreCreation(parent, pos, wxDefaultSize) ||
+        !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
+                wxDefaultValidator, wxT("filedialog")))
+    {
+        wxFAIL_MSG( wxT("wxFileDialog creation failed") );
+        return false;
+    }

 
 

-    int style = dialog->GetStyle();
+    GtkFileChooserAction gtk_action;
+    GtkWindow* gtk_parent = NULL;
+    if (parent)
+        gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );

 
 

-    GtkFileSelection *filedlg = GTK_FILE_SELECTION(dialog->GetHandle());
-    char *filename = gtk_file_selection_get_filename(filedlg);
+    const gchar* ok_btn_stock;
+    if ( style & wxFD_SAVE )
+    {
+        gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
+        ok_btn_stock = GTK_STOCK_SAVE;
+    }
+    else
+    {
+        gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
+        ok_btn_stock = GTK_STOCK_OPEN;
+    }

 
 

-    if ( (style & wxSAVE) && ( style & wxOVERWRITE_PROMPT ) )
+    m_widget = gtk_file_chooser_dialog_new(
+                   wxGTK_CONV(m_message),
+                   gtk_parent,
+                   gtk_action,
+                   GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                   ok_btn_stock, GTK_RESPONSE_ACCEPT,
+                   NULL);
+    g_object_ref(m_widget);
+    GtkFileChooser* file_chooser = GTK_FILE_CHOOSER(m_widget);
+
+    m_fc.SetWidget(file_chooser);
+
+    gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
+
+    if ( style & wxFD_MULTIPLE )
+        gtk_file_chooser_set_select_multiple(file_chooser, true);
+
+    // gtk_widget_hide_on_delete is used here to avoid that Gtk automatically
+    // destroys the dialog when the user press ESC on the dialog: in that case
+    // a second call to ShowModal() would result in a bunch of Gtk-CRITICAL
+    // errors...
+    g_signal_connect(m_widget,
+                    "delete_event",
+                    G_CALLBACK (gtk_widget_hide_on_delete),
+                    this);
+
+    // local-only property could be set to false to allow non-local files to be
+    // loaded. In that case get/set_uri(s) should be used instead of
+    // get/set_filename(s) everywhere and the GtkFileChooserDialog should
+    // probably also be created with a backend, e.g. "gnome-vfs", "default", ...
+    // (gtk_file_chooser_dialog_new_with_backend). Currently local-only is kept
+    // as the default - true:
+    // gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
+
+    g_signal_connect (m_widget, "response",
+        G_CALLBACK (gtk_filedialog_response_callback), this);
+
+
+    // deal with extensions/filters
+    SetWildcard(wildCard);
+
+    wxString defaultFileNameWithExt = defaultFileName;
+    if ( !wildCard.empty() && !defaultFileName.empty() &&
+            !wxFileName(defaultFileName).HasExt() )

     {
     {

-        if (wxFileExists( filename ))
+        // append the default extension to the initial file name: GTK won't do
+        // it for us by default (unlike e.g. MSW)
+        const wxString defaultExt = m_fc.GetCurrentWildCard().AfterFirst('.');
+        if ( defaultExt.find_first_of("?*") == wxString::npos )
+            defaultFileNameWithExt += "." + defaultExt;
+    }
+
+
+    // if defaultDir is specified it should contain the directory and
+    // defaultFileName should contain the default name of the file, however if
+    // directory is not given, defaultFileName contains both
+    wxFileName fn;
+    if ( defaultDir.empty() )
+        fn.Assign(defaultFileNameWithExt);
+    else if ( !defaultFileNameWithExt.empty() )
+        fn.Assign(defaultDir, defaultFileNameWithExt);
+    else
+        fn.AssignDir(defaultDir);
+
+    // set the initial file name and/or directory
+    fn.MakeAbsolute(); // GTK+ needs absolute path
+    const wxString dir = fn.GetPath();
+    if ( !dir.empty() )
+    {
+        gtk_file_chooser_set_current_folder(file_chooser, wxGTK_CONV_FN(dir));
+    }
+
+    const wxString fname = fn.GetFullName();
+    if ( style & wxFD_SAVE )
+    {
+        if ( !fname.empty() )

         {
         {

-            wxString msg;
-            msg.Printf( _("File '%s' already exists, do you really want to "
-                         "overwrite it?"), filename);
+            gtk_file_chooser_set_current_name(file_chooser, wxGTK_CONV_FN(fname));
+        }

 
 

-            if (wxMessageBox(msg, _("Confirm"), wxYES_NO) != wxYES)
-                return;
+#if GTK_CHECK_VERSION(2,7,3)
+        if ((style & wxFD_OVERWRITE_PROMPT)
+#ifndef __WXGTK3__
+            && gtk_check_version(2,7,3) == NULL
+#endif
+            )
+        {
+            gtk_file_chooser_set_do_overwrite_confirmation(file_chooser, true);

         }
         }

+#endif

     }
     }

-    else if ( (style & wxOPEN) && ( style & wxFILE_MUST_EXIST) )
+    else // wxFD_OPEN

     {
     {

-        if ( !wxFileExists( filename ) )
+        if ( !fname.empty() )

         {
         {

-            wxMessageBox(_("Please choose an existing file."), _("Error"), wxOK);
-
-            return;
+            gtk_file_chooser_set_filename(file_chooser,
+                                          wxGTK_CONV_FN(fn.GetFullPath()));

         }
     }
 
         }
     }
 

-    dialog->SetPath( filename );
+    if ( style & wxFD_PREVIEW )
+    {
+        GtkWidget *previewImage = gtk_image_new();

 
 

-    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
-    event.SetEventObject( dialog );
-    dialog->GetEventHandler()->ProcessEvent( event );
-}
+        gtk_file_chooser_set_preview_widget(file_chooser, previewImage);
+        g_signal_connect(m_widget, "update-preview",
+                         G_CALLBACK(gtk_filedialog_update_preview_callback),
+                         previewImage);
+    }

 
 

-//-----------------------------------------------------------------------------
-// "clicked" for Cancel-button
-//-----------------------------------------------------------------------------
+    return true;
+}

 
 

-static
-void gtk_filedialog_cancel_callback( GtkWidget *WXUNUSED(w), wxFileDialog *dialog )
+wxFileDialog::~wxFileDialog()

 {
 {

-    if (g_isIdle) wxapp_install_idle_handler();
-
-    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
-    event.SetEventObject( dialog );
-    dialog->GetEventHandler()->ProcessEvent( event );
+    if (m_extraControl)
+    {
+        // get chooser to drop its reference right now, allowing wxWindow dtor
+        // to verify that ref count drops to zero
+        gtk_file_chooser_set_extra_widget(
+            GTK_FILE_CHOOSER(m_widget), NULL);
+    }

 }
 }

+void wxFileDialog::GTKOnAccept()
+{
+    int style = GetWindowStyle();
+    wxString filename = m_fc.GetPath();
+    m_selectedDirectory = m_fc.GetDirectory();
+
+    // gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
+#ifndef __WXGTK3__
+#if GTK_CHECK_VERSION(2,7,3)
+    if (gtk_check_version(2, 7, 3) != NULL)
+#endif
+    {
+        if ((style & wxFD_SAVE) && (style & wxFD_OVERWRITE_PROMPT))
+        {
+            if ( g_file_test(filename.utf8_str(), G_FILE_TEST_EXISTS) )
+            {
+                wxString msg;
+
+                msg.Printf(
+                    _("File '%s' already exists, do you really want to overwrite it?"),
+                    wxString::FromUTF8(filename.utf8_str()));
+
+                wxMessageDialog dlg(this, msg, _("Confirm"),
+                                   wxYES_NO | wxICON_QUESTION);
+                if (dlg.ShowModal() != wxID_YES)
+                    return;
+            }
+        }
+    }
+#endif

 
 

-//-----------------------------------------------------------------------------
-// wxFileDialog
-//-----------------------------------------------------------------------------
+    if (style & wxFD_FILE_MUST_EXIST)
+    {
+        if ( !g_file_test(filename.utf8_str(), G_FILE_TEST_EXISTS) )
+        {
+            wxMessageDialog dlg( this, _("Please choose an existing file."),
+                                 _("Error"), wxOK| wxICON_ERROR);
+            dlg.ShowModal();
+            return;
+        }
+    }

 
 

-IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxDialog)
+    // change to the directory where the user went if asked
+    if (style & wxFD_CHANGE_DIR)
+    {
+        // Use chdir to not care about filename encodings
+        wxGtkString folder(g_path_get_dirname(filename.utf8_str()));
+        chdir(folder);
+    }
+    EndDialog(wxID_OK);
+}

 
 

-wxFileDialog::wxFileDialog( wxWindow *parent, const wxString& message,
-                            const wxString& defaultDir, const wxString& defaultFileName,
-                            const wxString& wildCard,
-                            long style, const wxPoint& pos )
+void wxFileDialog::GTKOnCancel()

 {
 {

-    m_needParent = FALSE;
+    EndDialog(wxID_CANCEL);
+}

 
 

-    PreCreation( parent, -1, pos, wxDefaultSize, style | wxDIALOG_MODAL, "filedialog" );
-    m_message = message;
-    m_path = _T("");
-    m_fileName = defaultFileName;
-    m_dir = defaultDir;
-    m_wildCard = wildCard;
-    m_dialogStyle = style;
-    m_filterIndex = 1;
+int wxFileDialog::ShowModal()
+{
+    WX_TESTING_SHOW_MODAL_HOOK();

 
 

-    m_widget = gtk_file_selection_new( m_message.mbc_str() );
+    CreateExtraControl();

 
 

-    int x = (gdk_screen_width () - 400) / 2;
-    int y = (gdk_screen_height () - 400) / 2;
-    gtk_widget_set_uposition( m_widget, x, y );
+    return wxDialog::ShowModal();
+}

 
 

-    GtkFileSelection *sel = GTK_FILE_SELECTION(m_widget);
-    gtk_file_selection_hide_fileop_buttons( sel ); // they don't work anyway
+void wxFileDialog::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
+                             int WXUNUSED(width), int WXUNUSED(height),
+                             int WXUNUSED(sizeFlags))
+{
+}

 
 

-    m_path.Append(m_dir);
-    if( ! m_path.IsEmpty() && m_path.Last()!=_T('/') )
-        m_path.Append('/');
-    m_path.Append(m_fileName);
+void wxFileDialog::OnSize(wxSizeEvent&)
+{
+    // avoid calling DoLayout(), which will set the (wrong) size of
+    // m_extraControl, its size is managed by GtkFileChooser
+}

 
 

-    if(m_path.Length()>1) gtk_file_selection_set_filename(sel,m_path.mbc_str());
+wxString wxFileDialog::GetPath() const
+{
+    return m_fc.GetPath();
+}

 
 

-    gtk_signal_connect( GTK_OBJECT(sel->ok_button), "clicked",
-      GTK_SIGNAL_FUNC(gtk_filedialog_ok_callback), (gpointer*)this );
+void wxFileDialog::GetFilenames(wxArrayString& files) const
+{
+    m_fc.GetFilenames( files );
+}

 
 

-    // strange way to internationalize
-    gtk_label_set( GTK_LABEL( GTK_BUTTON(sel->ok_button)->child ), wxConv_current->cWX2MB(_("OK")) );
+void wxFileDialog::GetPaths(wxArrayString& paths) const
+{
+    m_fc.GetPaths( paths );
+}

 
 

-    gtk_signal_connect( GTK_OBJECT(sel->cancel_button), "clicked",
-      GTK_SIGNAL_FUNC(gtk_filedialog_cancel_callback), (gpointer*)this );
-      
-    // strange way to internationalize
-    gtk_label_set( GTK_LABEL( GTK_BUTTON(sel->cancel_button)->child ), wxConv_current->cWX2MB(_("Cancel")) );
-    
-    gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event",
-        GTK_SIGNAL_FUNC(gtk_filedialog_delete_callback), (gpointer)this );
+void wxFileDialog::SetMessage(const wxString& message)
+{
+    m_message = message;
+    SetTitle(message);

 }
 
 void wxFileDialog::SetPath(const wxString& path)
 {
 }
 
 void wxFileDialog::SetPath(const wxString& path)
 {

-    // not only set the full path but also update filename and dir
-    m_path = path;
-    if ( !!path )
-    {
-        wxString ext;
-        wxSplitPath(path, &m_dir, &m_fileName, &ext);
-        m_fileName += ext;
-    }
+    wxFileDialogBase::SetPath(path);
+
+    // Don't do anything if no path is specified, in particular don't set the
+    // path to m_dir below as this would result in opening the dialog in the
+    // parent directory of this one instead of m_dir itself.
+    if ( path.empty() )
+        return;
+
+    // we need an absolute path for GTK native chooser so ensure that we have
+    // it: use the initial directory if it was set or just CWD otherwise (this
+    // is the default behaviour if m_dir is empty)
+    wxFileName fn(path);
+    fn.MakeAbsolute(m_dir);
+    m_fc.SetPath(fn.GetFullPath());

 }
 
 }
 

-// ----------------------------------------------------------------------------
-// global functions
-// ----------------------------------------------------------------------------
-
-wxString wxFileSelector( const wxChar *title,
-                      const wxChar *defaultDir, const wxChar *defaultFileName,
-                      const wxChar *defaultExtension, const wxChar *filter, int flags,
-                      wxWindow *parent, int x, int y )
+void wxFileDialog::SetDirectory(const wxString& dir)

 {
 {

-    wxString filter2;
-    if ( defaultExtension && !filter )
-        filter2 = wxString(_T("*.")) + wxString(defaultExtension) ;
-    else if ( filter )
-        filter2 = filter;
+    wxFileDialogBase::SetDirectory(dir);

 
 

-    wxString defaultDirString;
-    if (defaultDir)
-        defaultDirString = defaultDir;
+    m_fc.SetDirectory(dir);
+    m_selectedDirectory = dir;
+}

 
 

-    wxString defaultFilenameString;
-    if (defaultFileName)
-        defaultFilenameString = defaultFileName;
+wxString wxFileDialog::GetDirectory() const
+{
+    return m_selectedDirectory;
+}

 
 

-    wxFileDialog fileDialog( parent, title, defaultDirString, defaultFilenameString, filter2, flags, wxPoint(x, y) );
+void wxFileDialog::SetFilename(const wxString& name)
+{
+    wxFileDialogBase::SetFilename(name);

 
 

-    if ( fileDialog.ShowModal() == wxID_OK )
+    if (HasFdFlag(wxFD_SAVE))

     {
     {

-        return fileDialog.GetPath();
+        gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));

     }
     }

+

     else
     {
     else
     {

-        return wxEmptyString;
+        wxString path( GetDirectory() );
+        if (path.empty())
+        {
+            // SetPath() fires an assert if fed other than filepaths
+            return;
+        }
+        SetPath(wxFileName(path, name).GetFullPath());

     }
 }
 
     }
 }
 

-wxString wxLoadFileSelector( const wxChar *what, const wxChar *extension, const wxChar *default_name, wxWindow *parent )
+wxString wxFileDialog::GetFilename() const

 {
 {

-    wxChar *ext = (wxChar *)extension;
-
-    wxChar prompt[50];
-    wxString str = _("Load %s file");
-    wxSprintf(prompt, str, what);
-
-    if (*ext == _T('.')) ext++;
-    wxChar wild[60];
-    wxSprintf(wild, _T("*.%s"), ext);
-
-    return wxFileSelector (prompt, (const wxChar *) NULL, default_name, ext, wild, 0, parent);
+    wxString currentFilename( m_fc.GetFilename() );
+    if (currentFilename.empty())
+    {
+        // m_fc.GetFilename() will return empty until the dialog has been shown
+        // in which case use any previously provided value
+        currentFilename = m_fileName;
+    }
+    return currentFilename;

 }
 
 }
 

-wxString wxSaveFileSelector(const wxChar *what, const wxChar *extension, const wxChar *default_name,
-         wxWindow *parent )
+void wxFileDialog::SetWildcard(const wxString& wildCard)

 {
 {

-    wxChar *ext = (wxChar *)extension;
-
-    wxChar prompt[50];
-    wxString str = _("Save %s file");
-    wxSprintf(prompt, str, what);
+    wxFileDialogBase::SetWildcard(wildCard);
+    m_fc.SetWildcard( GetWildcard() );
+}

 
 

-    if (*ext == _T('.')) ext++;
-    wxChar wild[60];
-    wxSprintf(wild, _T("*.%s"), ext);
+void wxFileDialog::SetFilterIndex(int filterIndex)
+{
+    m_fc.SetFilterIndex( filterIndex);
+}

 
 

-    return wxFileSelector (prompt, (const wxChar *) NULL, default_name, ext, wild, 0, parent);
+int wxFileDialog::GetFilterIndex() const
+{
+    return m_fc.GetFilterIndex();

 }
 
 }
 

+#endif // wxUSE_FILEDLG