add a critical section protecting ms_prev variables (replaces patch 1819224)

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

diff --git a/src/gtk/filedlg.cpp b/src/gtk/filedlg.cpp
index 4589f3de1ab70add12d97c3db36d3621c6ee05ce..22ca5c3e6d187145f1a2f6ead39765181fc89383 100644 (file)
--- a/src/gtk/filedlg.cpp
+++ b/src/gtk/filedlg.cpp
@@ -1,162 +1,443 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        filedlg.cpp
-// Purpose:
-// Author:      Robert Roebling
-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Name:        src/gtk/filedlg.cpp
+// Purpose:     native implementation of wxFileDialog
+// Author:      Robert Roebling, Zbigniew Zagorski, Mart Raudsepp
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski, 2005 Mart Raudsepp
+// 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 && defined(__WXGTK24__)

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

-#include "wx/utils.h"
-#include "wx/intl.h"
-#include "wx/generic/msgdlgg.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+    #include "wx/msgdlg.h"
+#endif
+
+#include <gtk/gtk.h>
+#include "wx/gtk/private.h"
+
+#include <unistd.h> // chdir
+
+#include "wx/filename.h" // wxFilename
+#include "wx/tokenzr.h" // wxStringTokenizer
+#include "wx/filefn.h" // ::wxGetCwd

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

-// wxFileDialog
+// "clicked" for OK-button
+//-----------------------------------------------------------------------------
+
+extern "C" {
+static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
+{
+    int style = dialog->GetWindowStyle();
+    wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
+
+    // gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
+#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, G_FILE_TEST_EXISTS) )
+        {
+            wxString msg;
+
+            msg.Printf(
+                _("File '%s' already exists, do you really want to overwrite it?"),
+                wxString(filename, *wxConvFileName));
+
+            wxMessageDialog dlg(dialog, msg, _("Confirm"),
+                               wxYES_NO | wxICON_QUESTION);
+            if (dlg.ShowModal() != wxID_YES)
+                return;
+        }
+    }
+
+    if (style & wxFD_FILE_MUST_EXIST)
+    {
+        if ( !g_file_test(filename, G_FILE_TEST_EXISTS) )
+        {
+            wxMessageDialog dlg( dialog, _("Please choose an existing file."),
+                                 _("Error"), wxOK| wxICON_ERROR);
+            dlg.ShowModal();
+            return;
+        }
+    }
+
+    // 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));
+        chdir(folder);
+    }
+
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK);
+    event.SetEventObject(dialog);
+    dialog->GetEventHandler()->ProcessEvent(event);
+}
+}
+
+//-----------------------------------------------------------------------------
+// "clicked" for Cancel-button

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

-void gtk_filedialog_ok_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+extern "C"

 {
 {

-  wxFileDialog *dialog = (wxFileDialog*)data;
-  wxCommandEvent event(wxEVT_NULL);

 
 

-  if(dialog->GetStyle()&(wxSAVE|wxOVERWRITE_PROMPT))
-       if(wxFileExists(gtk_file_selection_get_filename(GTK_FILE_SELECTION(dialog->m_widget) ))) {
-         if(wxMessageBox("File exists. Overwrite?","Confirm",wxYES_NO)!=wxYES)
-               return;
-       }
+static void
+gtk_filedialog_cancel_callback(GtkWidget * WXUNUSED(w), wxFileDialog *dialog)
+{
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+    event.SetEventObject(dialog);
+    dialog->GetEventHandler()->ProcessEvent(event);
+}

 
 

-  dialog->OnOk( event );
-};
+static void gtk_filedialog_response_callback(GtkWidget *w,
+                                             gint response,
+                                             wxFileDialog *dialog)
+{
+    if (response == GTK_RESPONSE_ACCEPT)
+        gtk_filedialog_ok_callback(w, dialog);
+    else    // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
+        gtk_filedialog_cancel_callback(w, dialog);
+}

 
 

-void gtk_filedialog_cancel_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
+                                                   gpointer user_data)

 {
 {

-  wxFileDialog *dialog = (wxFileDialog*)data;
-  wxCommandEvent event(wxEVT_NULL);
-  dialog->OnCancel( event );
-};
+#if GTK_CHECK_VERSION(2,4,0)
+    GtkWidget *preview = GTK_WIDGET(user_data);

 
 

-IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxDialog)
+    wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));
+
+    if ( !filename )
+        return;
+
+    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);
+#else
+    wxUnusedVar(chooser);
+    wxUnusedVar(user_data);
+#endif // GTK+ 2.4+
+}
+
+} // extern "C"
+
+
+//-----------------------------------------------------------------------------
+// wxFileDialog
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxGenericFileDialog)
+
+BEGIN_EVENT_TABLE(wxFileDialog,wxGenericFileDialog)
+    EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
+END_EVENT_TABLE()

 
 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 
 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,

-        const wxString& defaultDir, const wxString& defaultFileName, 
-       const wxString& wildCard,
-        long style, const wxPoint& pos )
-{
-  m_needParent = FALSE;
-  
-  PreCreation( parent, -1, pos, wxDefaultSize, style | wxDIALOG_MODAL, "filedialog" );
-  m_message = message;
-  m_path = "";
-  m_fileName = defaultFileName;
-  m_dir = defaultDir;
-  m_wildCard = wildCard;
-  m_dialogStyle = style;
-  m_filterIndex = 1;
-  
-  m_widget = gtk_file_selection_new( "File selection" );
-  
-  GtkFileSelection *sel = GTK_FILE_SELECTION(m_widget);
-
-  m_path.Append(m_dir);
-  if(! m_path.IsEmpty() && m_path.Last()!='/') m_path.Append('/');
-  m_path.Append(m_fileName);
-
-  if(m_path.Length()>1) gtk_file_selection_set_filename(sel,m_path);
-  
-  gtk_signal_connect( GTK_OBJECT(sel->ok_button), "clicked", 
-    GTK_SIGNAL_FUNC(gtk_filedialog_ok_callback), (gpointer*)this );
-
-  gtk_signal_connect( GTK_OBJECT(sel->cancel_button), "clicked", 
-    GTK_SIGNAL_FUNC(gtk_filedialog_cancel_callback), (gpointer*)this );
-};
-
-int wxFileDialog::ShowModal(void)
-{
-  int ret = wxDialog::ShowModal();
-
-  if (ret == wxID_OK)
-  {
-    m_fileName = gtk_file_selection_get_filename( GTK_FILE_SELECTION(m_widget) );
-    m_path = gtk_file_selection_get_filename( GTK_FILE_SELECTION(m_widget) );
-  };
-  return ret;
-};
-    
-
-char *wxFileSelector(const char *title,
-                     const char *defaultDir, const char *defaultFileName,
-                     const char *defaultExtension, const char *filter, int flags,
-                     wxWindow *parent, int x, int y)
-{
-       wxString filter2("");
-       if ( defaultExtension && !filter )
-               filter2 = wxString("*.") + wxString(defaultExtension) ;
-       else if ( filter )
-               filter2 = filter;
-
-       wxString defaultDirString;
-       if (defaultDir)
-               defaultDirString = defaultDir;
-       else
-               defaultDirString = "";
-
-       wxString defaultFilenameString;
-       if (defaultFileName)
-               defaultFilenameString = defaultFileName;
-       else
-               defaultFilenameString = "";
-
-       wxFileDialog fileDialog(parent, title, defaultDirString, defaultFilenameString, 
-         filter2, flags, wxPoint(x, y));
-
-       if ( fileDialog.ShowModal() == wxID_OK )
-       {
-               strcpy(wxBuffer, (const char *)fileDialog.GetPath());
-               return wxBuffer;
-       }
-       else
-               return NULL;
-};
-
-char* wxLoadFileSelector(const char *what, const char *extension, const char *default_name, 
-         wxWindow *parent )
-{
-  char *ext = (char *)extension;
-  
-  char prompt[50];
-  wxString str = _("Load %s file");
-  sprintf(prompt, str, what);
-
-  if (*ext == '.') ext++;
-  char wild[60];
-  sprintf(wild, "*.%s", ext);
-
-  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
-};
-
-char* wxSaveFileSelector(const char *what, const char *extension, const char *default_name, 
-         wxWindow *parent )
-{
-  char *ext = (char *)extension;
-  
-  char prompt[50];
-  wxString str = _("Save %s file");
-  sprintf(prompt, str, what);
-
-  if (*ext == '.') ext++;
-  char wild[60];
-  sprintf(wild, "*.%s", ext);
-
-  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
-};
+                           const wxString& defaultDir,
+                           const wxString& defaultFileName,
+                           const wxString& wildCard,
+                           long style, const wxPoint& pos,
+                           const wxSize& sz,
+                           const wxString& name)
+    : wxGenericFileDialog(parent, message, defaultDir, defaultFileName,
+                          wildCard, style, pos, sz, name, true )
+{
+    if (gtk_check_version(2,4,0))
+    {
+        wxGenericFileDialog::Create( parent, message, defaultDir,
+                                     defaultFileName, wildCard, style, pos );
+        return;
+    }
+
+    parent = GetParentForModalDialog(parent);
+
+    if (!PreCreation(parent, pos, wxDefaultSize) ||
+        !CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
+                wxDefaultValidator, wxT("filedialog")))
+    {
+        wxFAIL_MSG( wxT("wxFileDialog creation failed") );
+        return;
+    }
+
+    GtkFileChooserAction gtk_action;
+    GtkWindow* gtk_parent = NULL;
+    if (parent)
+        gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
+
+    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;
+    }
+
+    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);
+
+    m_fc.SetWidget( GTK_FILE_CHOOSER(m_widget) );
+
+    gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
+
+    if ( style & wxFD_MULTIPLE )
+        gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(m_widget), 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 (G_OBJECT(m_widget),
+                    "delete_event",
+                    G_CALLBACK (gtk_widget_hide_on_delete),
+                    (gpointer)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);
+
+    SetWildcard(wildCard);
+
+    // 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(defaultFileName);
+    else if ( !defaultFileName.empty() )
+        fn.Assign(defaultDir, defaultFileName);
+    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(GTK_FILE_CHOOSER(m_widget),
+                                            dir.fn_str());
+    }
+
+    const wxString fname = fn.GetFullName();
+    if ( style & wxFD_SAVE )
+    {
+        if ( !fname.empty() )
+        {
+            gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget),
+                                              fname.fn_str());
+        }
+
+#if GTK_CHECK_VERSION(2,7,3)
+        if ((style & wxFD_OVERWRITE_PROMPT) && !gtk_check_version(2,7,3))
+            gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(m_widget), TRUE);
+#endif
+    }
+    else // wxFD_OPEN
+    {
+        if ( !fname.empty() )
+        {
+            gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(m_widget),
+                                          fn.GetFullPath().fn_str());
+        }
+    }
+
+#if GTK_CHECK_VERSION(2,4,0)
+    if ( style & wxFD_PREVIEW )
+    {
+        GtkWidget *previewImage = gtk_image_new();
+
+        gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(m_widget),
+                                            previewImage);
+        g_signal_connect(m_widget, "update-preview",
+                         G_CALLBACK(gtk_filedialog_update_preview_callback),
+                         previewImage);
+    }
+#endif // GTK+ 2.4+
+}
+
+void wxFileDialog::OnFakeOk( wxCommandEvent &event )
+{
+    if (!gtk_check_version(2,4,0))
+        EndDialog(wxID_OK);
+    else
+        wxGenericFileDialog::OnOk( event );
+}
+
+int wxFileDialog::ShowModal()
+{
+    if (!gtk_check_version(2,4,0))
+        return wxDialog::ShowModal();
+    else
+        return wxGenericFileDialog::ShowModal();
+}
+
+bool wxFileDialog::Show( bool show )
+{
+    if (!gtk_check_version(2,4,0))
+        return wxDialog::Show( show );
+    else
+        return wxGenericFileDialog::Show( show );
+}
+
+void wxFileDialog::DoSetSize(int x, int y, int width, int height, int sizeFlags )
+{
+    if (!m_wxwindow)
+        return;
+    else
+        wxGenericFileDialog::DoSetSize( x, y, width, height, sizeFlags );
+}
+
+wxString wxFileDialog::GetPath() const
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        return m_fc.GetPath();
+    }
+
+    return wxGenericFileDialog::GetPath();
+}
+
+void wxFileDialog::GetFilenames(wxArrayString& files) const
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_fc.GetFilenames( files );
+    }
+    else
+        wxGenericFileDialog::GetFilenames( files );
+}
+
+void wxFileDialog::GetPaths(wxArrayString& paths) const
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_fc.GetPaths( paths );
+    }
+    else
+        wxGenericFileDialog::GetPaths( paths );
+}
+
+void wxFileDialog::SetMessage(const wxString& message)
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_message = message;
+        SetTitle(message);
+    }
+    else
+        wxGenericFileDialog::SetMessage( message );
+}
+
+void wxFileDialog::SetPath(const wxString& path)
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_fc.SetPath( path );
+    }
+    else
+        wxGenericFileDialog::SetPath( path );
+}
+
+void wxFileDialog::SetDirectory(const wxString& dir)
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_fc.SetDirectory( dir );
+    }
+    else
+        wxGenericFileDialog::SetDirectory( dir );
+}
+
+wxString wxFileDialog::GetDirectory() const
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_fc.GetDirectory();
+    }
+
+    return wxGenericFileDialog::GetDirectory();
+}
+
+void wxFileDialog::SetFilename(const wxString& name)
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        if (HasFdFlag(wxFD_SAVE))
+            gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
+        else
+            SetPath(wxFileName(GetDirectory(), name).GetFullPath());
+    }
+    else
+        wxGenericFileDialog::SetFilename( name );
+}
+
+wxString wxFileDialog::GetFilename() const
+{
+    if (!gtk_check_version(2,4,0))
+        return m_fc.GetFilename();
+    else
+        return wxGenericFileDialog::GetFilename();
+}
+
+void wxFileDialog::SetWildcard(const wxString& wildCard)
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        m_fc.SetWildcard( wildCard );
+    }
+    else
+        wxGenericFileDialog::SetWildcard( wildCard );
+}
+
+void wxFileDialog::SetFilterIndex(int filterIndex)
+{
+
+    if (!gtk_check_version(2,4,0))
+    {
+       m_fc.SetFilterIndex( filterIndex);
+    }
+    else
+        wxGenericFileDialog::SetFilterIndex( filterIndex );
+}
+
+int wxFileDialog::GetFilterIndex() const
+{
+    if (!gtk_check_version(2,4,0))
+    {
+        return m_fc.GetFilterIndex();
+    }
+    else
+                return wxGenericFileDialog::GetFilterIndex();
+}

 
 

+#endif // wxUSE_FILEDLG &&  __WXGTK24__