]> git.saurik.com Git - wxWidgets.git/blobdiff - src/gtk/filedlg.cpp
Replace wxPrintout::SetIsPreview() with SetPreview().
[wxWidgets.git] / src / gtk / filedlg.cpp
index 65b95e2d6e84644d49d69c90616df61e1b8bac7d..278950e6ab332db825c52ab3ba05e2909888b9f8 100644 (file)
 /////////////////////////////////////////////////////////////////////////////
-// Name:        filedlg.cpp
-// Purpose:
-// Author:      Robert Roebling
-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
+// 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
 
 #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
 //-----------------------------------------------------------------------------
 
-void gtk_filedialog_ok_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+extern "C" {
+static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
 {
-  wxFileDialog *dialog = (wxFileDialog*)data;
-  wxCommandEvent event(wxEVT_NULL);
-  int style;
+    int style = dialog->GetWindowStyle();
+    wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
 
-  style=dialog->GetStyle();
+    // 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::FromUTF8(filename));
+
+                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->HandleWindowEvent(event);
+}
+}
+
+//-----------------------------------------------------------------------------
+// "clicked" for Cancel-button
+//-----------------------------------------------------------------------------
 
-  if((style&wxSAVE)&&(style&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;
-       }
+extern "C"
+{
 
-  dialog->OnOK( event );
+static void
+gtk_filedialog_cancel_callback(GtkWidget * WXUNUSED(w), wxFileDialog *dialog)
+{
+    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
+    event.SetEventObject(dialog);
+    dialog->HandleWindowEvent(event);
 }
 
-void gtk_filedialog_cancel_callback( GtkWidget *WXUNUSED(widget), gpointer data )
+static void gtk_filedialog_response_callback(GtkWidget *w,
+                                             gint response,
+                                             wxFileDialog *dialog)
 {
-  wxFileDialog *dialog = (wxFileDialog*)data;
-  wxCommandEvent event(wxEVT_NULL);
-  dialog->OnCancel( event );
+    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);
 }
 
-IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxDialog)
+static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
+                                                   gpointer user_data)
+{
+    GtkWidget *preview = GTK_WIDGET(user_data);
 
-wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
-        const wxString& defaultDir, const wxString& defaultFileName,
-  const wxString& wildCard,
-        long style, const wxPoint& pos )
+    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);
+}
+
+} // extern "C"
+
+//-----------------------------------------------------------------------------
+// "size_request" from m_extraControl
+//-----------------------------------------------------------------------------
+
+extern "C" {
+static void extra_widget_size_request(GtkWidget*, GtkRequisition* req, wxWindow* win)
+{
+    // allow dialog to be resized smaller horizontally
+    req->width = win->GetMinWidth();
+}
+}
+
+void wxFileDialog::AddChildGTK(wxWindowGTK* child)
 {
-  m_needParent = FALSE;
+    g_signal_connect_after(child->m_widget, "size_request",
+        G_CALLBACK(extra_widget_size_request), child);
+    gtk_file_chooser_set_extra_widget(
+        GTK_FILE_CHOOSER(m_widget), child->m_widget);
+}
 
-  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;
+//-----------------------------------------------------------------------------
+// wxFileDialog
+//-----------------------------------------------------------------------------
 
-  m_widget = gtk_file_selection_new(_("File selection"));
-  
-  int x = (gdk_screen_width () - 400) / 2;
-  int y = (gdk_screen_height () - 400) / 2;
-  gtk_widget_set_uposition( m_widget, x, y );
-  
-  GtkFileSelection *sel = GTK_FILE_SELECTION(m_widget);
+IMPLEMENT_DYNAMIC_CLASS(wxFileDialog,wxFileDialogBase)
 
-  m_path.Append(m_dir);
-  if(! m_path.IsEmpty() && m_path.Last()!='/') m_path.Append('/');
-  m_path.Append(m_fileName);
+BEGIN_EVENT_TABLE(wxFileDialog,wxFileDialogBase)
+    EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
+    EVT_SIZE(wxFileDialog::OnSize)
+END_EVENT_TABLE()
 
-  if(m_path.Length()>1) gtk_file_selection_set_filename(sel,m_path);
+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()
+{
+    parent = GetParentForModalDialog(parent, style);
+
+    if (!wxFileDialogBase::Create(parent, message, defaultDir, defaultFileName,
+                                  wildCard, style, pos, sz, name))
+    {
+        return;
+    }
+
+    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);
+    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() )
+    {
+        // 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, dir.fn_str());
+    }
+
+    const wxString fname = fn.GetFullName();
+    if ( style & wxFD_SAVE )
+    {
+        if ( !fname.empty() )
+        {
+            gtk_file_chooser_set_current_name(file_chooser, 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(file_chooser, true);
+#endif
+    }
+    else // wxFD_OPEN
+    {
+        if ( !fname.empty() )
+        {
+            gtk_file_chooser_set_filename(file_chooser,
+                                          fn.GetFullPath().fn_str());
+        }
+    }
+
+    if ( style & wxFD_PREVIEW )
+    {
+        GtkWidget *previewImage = gtk_image_new();
+
+        gtk_file_chooser_set_preview_widget(file_chooser, previewImage);
+        g_signal_connect(m_widget, "update-preview",
+                         G_CALLBACK(gtk_filedialog_update_preview_callback),
+                         previewImage);
+    }
+}
 
-  gtk_signal_connect( GTK_OBJECT(sel->ok_button), "clicked",
-    GTK_SIGNAL_FUNC(gtk_filedialog_ok_callback), (gpointer*)this );
+wxFileDialog::~wxFileDialog()
+{
+    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);
+    }
+}
 
-  gtk_signal_connect( GTK_OBJECT(sel->cancel_button), "clicked",
-    GTK_SIGNAL_FUNC(gtk_filedialog_cancel_callback), (gpointer*)this );
+void wxFileDialog::OnFakeOk(wxCommandEvent& WXUNUSED(event))
+{
+    EndDialog(wxID_OK);
 }
 
-int wxFileDialog::ShowModal(void)
+int wxFileDialog::ShowModal()
 {
-  int ret = wxDialog::ShowModal();
+    CreateExtraControl();
 
-  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;
+    return wxDialog::ShowModal();
 }
 
+void wxFileDialog::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
+                             int WXUNUSED(width), int WXUNUSED(height),
+                             int WXUNUSED(sizeFlags))
+{
+}
 
-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)
+void wxFileDialog::OnSize(wxSizeEvent&)
 {
-  wxString filter2("");
-  if ( defaultExtension && !filter )
-    filter2 = wxString("*.") + wxString(defaultExtension) ;
-  else if ( filter )
-    filter2 = filter;
+    // avoid calling DoLayout(), which will set the (wrong) size of
+    // m_extraControl, its size is managed by GtkFileChooser
+}
 
-  wxString defaultDirString;
-  if (defaultDir)
-    defaultDirString = defaultDir;
-  else
-    defaultDirString = "";
+wxString wxFileDialog::GetPath() const
+{
+    return m_fc.GetPath();
+}
 
-  wxString defaultFilenameString;
-  if (defaultFileName)
-    defaultFilenameString = defaultFileName;
-  else
-    defaultFilenameString = "";
+void wxFileDialog::GetFilenames(wxArrayString& files) const
+{
+    m_fc.GetFilenames( files );
+}
 
-  wxFileDialog fileDialog(parent, title, defaultDirString, defaultFilenameString,
-    filter2, flags, wxPoint(x, y));
+void wxFileDialog::GetPaths(wxArrayString& paths) const
+{
+    m_fc.GetPaths( paths );
+}
+
+void wxFileDialog::SetMessage(const wxString& message)
+{
+    m_message = message;
+    SetTitle(message);
+}
 
-  if ( fileDialog.ShowModal() == wxID_OK )
-  {
-    strcpy(wxBuffer, (const char *)fileDialog.GetPath());
-    return wxBuffer;
-  }
-  else
-    return NULL;
+void wxFileDialog::SetPath(const wxString& path)
+{
+    // we need an absolute path for GTK native chooser so ensure that we have
+    // it
+    wxFileName fn(path);
+    fn.MakeAbsolute();
+    m_fc.SetPath(fn.GetFullPath());
 }
 
-char* wxLoadFileSelector(const char *what, const char *extension, const char *default_name,
-         wxWindow *parent )
+void wxFileDialog::SetDirectory(const wxString& dir)
 {
-  char *ext = (char *)extension;
+    if (m_fc.SetDirectory( dir ))
+    {
+        // Cache the dir, as gtk_file_chooser_get_current_folder()
+        // doesn't return anything until the dialog has been shown
+        m_dir = dir;
+    }
+}
 
-  char prompt[50];
-  wxString str = _("Load %s file");
-  sprintf(prompt, str, what);
+wxString wxFileDialog::GetDirectory() const
+{
+    wxString currentDir( m_fc.GetDirectory() );
+    if (currentDir.empty())
+    {
+        // m_fc.GetDirectory() will return empty until the dialog has been shown
+        // in which case use any previously provided value
+        currentDir = m_dir;
+    }
+    return currentDir;
+}
 
-  if (*ext == '.') ext++;
-  char wild[60];
-  sprintf(wild, "*.%s", ext);
+void wxFileDialog::SetFilename(const wxString& name)
+{
+    if (HasFdFlag(wxFD_SAVE))
+    {
+        gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
+        m_fileName = name;
+    }
+
+    else
+    {
+        wxString path( GetDirectory() );
+        if (path.empty())
+        {
+            // SetPath() fires an assert if fed other than filepaths
+            return;
+        }
+        SetPath(wxFileName(path, name).GetFullPath());
+        m_fileName = name;
+    }
+}
 
-  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
+wxString wxFileDialog::GetFilename() const
+{
+    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;
 }
 
-char* wxSaveFileSelector(const char *what, const char *extension, const char *default_name,
-         wxWindow *parent )
+void wxFileDialog::SetWildcard(const wxString& wildCard)
 {
-  char *ext = (char *)extension;
+    m_fc.SetWildcard( wildCard );
+}
 
-  char prompt[50];
-  wxString str = _("Save %s file");
-  sprintf(prompt, str, what);
+void wxFileDialog::SetFilterIndex(int filterIndex)
+{
 
-  if (*ext == '.') ext++;
-  char wild[60];
-  sprintf(wild, "*.%s", ext);
+    m_fc.SetFilterIndex( filterIndex);
+}
 
-  return wxFileSelector (prompt, NULL, default_name, ext, wild, 0, parent);
+int wxFileDialog::GetFilterIndex() const
+{
+    return m_fc.GetFilterIndex();
 }
 
+#endif // wxUSE_FILEDLG