488 lines
14 KiB
C++
488 lines
14 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/gtk/filedlg.cpp
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// Purpose: native implementation of wxFileDialog
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// Author: Robert Roebling, Zbigniew Zagorski, Mart Raudsepp
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// Copyright: (c) 1998 Robert Roebling, 2004 Zbigniew Zagorski, 2005 Mart Raudsepp
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if wxUSE_FILEDLG
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#include "wx/filedlg.h"
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#ifndef WX_PRECOMP
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#include "wx/intl.h"
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#include "wx/log.h"
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#include "wx/msgdlg.h"
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#endif
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#include <gtk/gtk.h>
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#include "wx/gtk/private.h"
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#ifdef __UNIX__
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#include <unistd.h> // chdir
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#endif
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#include "wx/filename.h" // wxFilename
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#include "wx/tokenzr.h" // wxStringTokenizer
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#include "wx/filefn.h" // ::wxGetCwd
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#include "wx/modalhook.h"
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//-----------------------------------------------------------------------------
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// "clicked" for OK-button
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//-----------------------------------------------------------------------------
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extern "C" {
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static void gtk_filedialog_ok_callback(GtkWidget *widget, wxFileDialog *dialog)
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{
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int style = dialog->GetWindowStyle();
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wxGtkString filename(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(widget)));
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// gtk version numbers must be identical with the one in ctor (that calls set_do_overwrite_confirmation)
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#ifndef __WXGTK3__
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#if GTK_CHECK_VERSION(2,7,3)
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if (gtk_check_version(2, 7, 3) != NULL)
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#endif
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{
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if ((style & wxFD_SAVE) && (style & wxFD_OVERWRITE_PROMPT))
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{
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if ( g_file_test(filename, G_FILE_TEST_EXISTS) )
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{
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wxString msg;
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msg.Printf(
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_("File '%s' already exists, do you really want to overwrite it?"),
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wxString::FromUTF8(filename));
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wxMessageDialog dlg(dialog, msg, _("Confirm"),
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wxYES_NO | wxICON_QUESTION);
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if (dlg.ShowModal() != wxID_YES)
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return;
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}
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}
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}
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#endif
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if (style & wxFD_FILE_MUST_EXIST)
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{
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if ( !g_file_test(filename, G_FILE_TEST_EXISTS) )
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{
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wxMessageDialog dlg( dialog, _("Please choose an existing file."),
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_("Error"), wxOK| wxICON_ERROR);
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dlg.ShowModal();
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return;
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}
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}
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// change to the directory where the user went if asked
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if (style & wxFD_CHANGE_DIR)
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{
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// Use chdir to not care about filename encodings
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wxGtkString folder(g_path_get_dirname(filename));
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if ( chdir(folder) != 0 )
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{
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wxLogSysError(_("Changing current directory to \"%s\" failed"),
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wxString::FromUTF8(folder));
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}
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}
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wxCommandEvent event(wxEVT_BUTTON, wxID_OK);
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event.SetEventObject(dialog);
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dialog->HandleWindowEvent(event);
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}
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}
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//-----------------------------------------------------------------------------
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// "clicked" for Cancel-button
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//-----------------------------------------------------------------------------
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extern "C"
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{
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static void
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gtk_filedialog_cancel_callback(GtkWidget * WXUNUSED(w), wxFileDialog *dialog)
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{
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wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, wxID_CANCEL);
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event.SetEventObject(dialog);
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dialog->HandleWindowEvent(event);
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}
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static void gtk_filedialog_response_callback(GtkWidget *w,
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gint response,
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wxFileDialog *dialog)
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{
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if (response == GTK_RESPONSE_ACCEPT)
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gtk_filedialog_ok_callback(w, dialog);
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else // GTK_RESPONSE_CANCEL or GTK_RESPONSE_NONE
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gtk_filedialog_cancel_callback(w, dialog);
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}
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static void gtk_filedialog_selchanged_callback(GtkFileChooser *chooser,
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wxFileDialog *dialog)
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{
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wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));
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dialog->GTKSelectionChanged(wxString::FromUTF8(filename));
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}
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static void gtk_filedialog_update_preview_callback(GtkFileChooser *chooser,
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gpointer user_data)
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{
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GtkWidget *preview = GTK_WIDGET(user_data);
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wxGtkString filename(gtk_file_chooser_get_preview_filename(chooser));
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if ( !filename )
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return;
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GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL);
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gboolean have_preview = pixbuf != NULL;
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gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf);
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if ( pixbuf )
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g_object_unref (pixbuf);
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gtk_file_chooser_set_preview_widget_active(chooser, have_preview);
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}
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} // extern "C"
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void wxFileDialog::AddChildGTK(wxWindowGTK* child)
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{
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// allow dialog to be resized smaller horizontally
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gtk_widget_set_size_request(
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child->m_widget, child->GetMinWidth(), child->m_height);
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gtk_file_chooser_set_extra_widget(
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GTK_FILE_CHOOSER(m_widget), child->m_widget);
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}
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//-----------------------------------------------------------------------------
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// wxFileDialog
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//-----------------------------------------------------------------------------
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wxIMPLEMENT_DYNAMIC_CLASS(wxFileDialog, wxFileDialogBase);
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wxBEGIN_EVENT_TABLE(wxFileDialog,wxFileDialogBase)
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EVT_BUTTON(wxID_OK, wxFileDialog::OnFakeOk)
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EVT_SIZE(wxFileDialog::OnSize)
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wxEND_EVENT_TABLE()
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wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
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const wxString& defaultDir,
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const wxString& defaultFileName,
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const wxString& wildCard,
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long style, const wxPoint& pos,
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const wxSize& sz,
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const wxString& name)
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: wxFileDialogBase()
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{
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Create(parent, message, defaultDir, defaultFileName, wildCard, style, pos, sz, name);
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}
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bool wxFileDialog::Create(wxWindow *parent, const wxString& message,
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const wxString& defaultDir,
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const wxString& defaultFileName,
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const wxString& wildCard,
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long style, const wxPoint& pos,
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const wxSize& sz,
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const wxString& name)
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{
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parent = GetParentForModalDialog(parent, style);
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if (!wxFileDialogBase::Create(parent, message, defaultDir, defaultFileName,
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wildCard, style, pos, sz, name))
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{
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return false;
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}
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if (!PreCreation(parent, pos, wxDefaultSize) ||
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!CreateBase(parent, wxID_ANY, pos, wxDefaultSize, style,
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wxDefaultValidator, wxT("filedialog")))
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{
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wxFAIL_MSG( wxT("wxFileDialog creation failed") );
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return false;
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}
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GtkFileChooserAction gtk_action;
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GtkWindow* gtk_parent = NULL;
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if (parent)
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gtk_parent = GTK_WINDOW( gtk_widget_get_toplevel(parent->m_widget) );
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const gchar* ok_btn_stock;
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if ( style & wxFD_SAVE )
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{
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gtk_action = GTK_FILE_CHOOSER_ACTION_SAVE;
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ok_btn_stock = GTK_STOCK_SAVE;
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}
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else
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{
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gtk_action = GTK_FILE_CHOOSER_ACTION_OPEN;
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ok_btn_stock = GTK_STOCK_OPEN;
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}
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m_widget = gtk_file_chooser_dialog_new(
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wxGTK_CONV(m_message),
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gtk_parent,
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gtk_action,
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GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
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ok_btn_stock, GTK_RESPONSE_ACCEPT,
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NULL);
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g_object_ref(m_widget);
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GtkFileChooser* file_chooser = GTK_FILE_CHOOSER(m_widget);
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m_fc.SetWidget(file_chooser);
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gtk_dialog_set_default_response(GTK_DIALOG(m_widget), GTK_RESPONSE_ACCEPT);
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if ( style & wxFD_MULTIPLE )
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gtk_file_chooser_set_select_multiple(file_chooser, true);
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// local-only property could be set to false to allow non-local files to be
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// loaded. In that case get/set_uri(s) should be used instead of
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// get/set_filename(s) everywhere and the GtkFileChooserDialog should
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// probably also be created with a backend, e.g. "gnome-vfs", "default", ...
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// (gtk_file_chooser_dialog_new_with_backend). Currently local-only is kept
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// as the default - true:
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// gtk_file_chooser_set_local_only(GTK_FILE_CHOOSER(m_widget), true);
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g_signal_connect (m_widget, "response",
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G_CALLBACK (gtk_filedialog_response_callback), this);
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g_signal_connect (m_widget, "selection-changed",
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G_CALLBACK (gtk_filedialog_selchanged_callback), this);
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// deal with extensions/filters
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SetWildcard(wildCard);
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wxString defaultFileNameWithExt = defaultFileName;
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if ( !wildCard.empty() && !defaultFileName.empty() &&
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!wxFileName(defaultFileName).HasExt() )
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{
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// append the default extension, if any, to the initial file name: GTK
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// won't do it for us by default (unlike e.g. MSW)
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const wxFileName fnWC(m_fc.GetCurrentWildCard());
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if ( fnWC.HasExt() )
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{
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// Notice that we shouldn't append the extension if it's a wildcard
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// because this is not useful: the user would need to change it to use
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// some fixed extension anyhow.
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const wxString& ext = fnWC.GetExt();
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if ( ext.find_first_of("?*") == wxString::npos )
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defaultFileNameWithExt << "." << ext;
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}
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}
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// if defaultDir is specified it should contain the directory and
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// defaultFileName should contain the default name of the file, however if
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// directory is not given, defaultFileName contains both
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wxFileName fn;
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if ( defaultDir.empty() )
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fn.Assign(defaultFileNameWithExt);
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else if ( !defaultFileNameWithExt.empty() )
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fn.Assign(defaultDir, defaultFileNameWithExt);
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else
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fn.AssignDir(defaultDir);
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// set the initial file name and/or directory
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fn.MakeAbsolute(); // GTK+ needs absolute path
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const wxString dir = fn.GetPath();
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if ( !dir.empty() )
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{
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gtk_file_chooser_set_current_folder(file_chooser, wxGTK_CONV_FN(dir));
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}
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const wxString fname = fn.GetFullName();
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if ( style & wxFD_SAVE )
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{
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if ( !fname.empty() )
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{
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gtk_file_chooser_set_current_name(file_chooser, wxGTK_CONV_FN(fname));
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}
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#if GTK_CHECK_VERSION(2,7,3)
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if ((style & wxFD_OVERWRITE_PROMPT)
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#ifndef __WXGTK3__
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&& gtk_check_version(2,7,3) == NULL
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#endif
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)
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{
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gtk_file_chooser_set_do_overwrite_confirmation(file_chooser, true);
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}
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#endif
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}
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else // wxFD_OPEN
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{
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if ( !fname.empty() )
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{
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gtk_file_chooser_set_filename(file_chooser,
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wxGTK_CONV_FN(fn.GetFullPath()));
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}
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}
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if ( style & wxFD_PREVIEW )
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{
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GtkWidget *previewImage = gtk_image_new();
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gtk_file_chooser_set_preview_widget(file_chooser, previewImage);
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g_signal_connect(m_widget, "update-preview",
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G_CALLBACK(gtk_filedialog_update_preview_callback),
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previewImage);
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}
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return true;
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}
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wxFileDialog::~wxFileDialog()
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{
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if (m_extraControl)
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{
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// get chooser to drop its reference right now, allowing wxWindow dtor
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// to verify that ref count drops to zero
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gtk_file_chooser_set_extra_widget(
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GTK_FILE_CHOOSER(m_widget), NULL);
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}
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}
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void wxFileDialog::OnFakeOk(wxCommandEvent& WXUNUSED(event))
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{
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// Update the current directory from here, accessing it later may not work
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// due to the strange way GtkFileChooser works.
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wxGtkString
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str(gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER(m_widget)));
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m_dir = wxString::FromUTF8(str);
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EndDialog(wxID_OK);
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}
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int wxFileDialog::ShowModal()
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{
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WX_HOOK_MODAL_DIALOG();
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CreateExtraControl();
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return wxDialog::ShowModal();
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}
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void wxFileDialog::DoSetSize(int WXUNUSED(x), int WXUNUSED(y),
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int WXUNUSED(width), int WXUNUSED(height),
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int WXUNUSED(sizeFlags))
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{
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}
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void wxFileDialog::OnSize(wxSizeEvent&)
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{
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// avoid calling DoLayout(), which will set the (wrong) size of
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// m_extraControl, its size is managed by GtkFileChooser
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}
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wxString wxFileDialog::GetPath() const
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{
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return m_fc.GetPath();
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}
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void wxFileDialog::GetFilenames(wxArrayString& files) const
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{
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m_fc.GetFilenames( files );
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}
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void wxFileDialog::GetPaths(wxArrayString& paths) const
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{
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m_fc.GetPaths( paths );
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}
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void wxFileDialog::SetMessage(const wxString& message)
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{
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m_message = message;
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SetTitle(message);
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}
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void wxFileDialog::SetPath(const wxString& path)
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{
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wxFileDialogBase::SetPath(path);
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// Don't do anything if no path is specified, in particular don't set the
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// path to m_dir below as this would result in opening the dialog in the
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// parent directory of this one instead of m_dir itself.
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if ( path.empty() )
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return;
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// we need an absolute path for GTK native chooser so ensure that we have
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// it: use the initial directory if it was set or just CWD otherwise (this
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// is the default behaviour if m_dir is empty)
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wxFileName fn(path);
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fn.MakeAbsolute(m_dir);
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m_fc.SetPath(fn.GetFullPath());
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}
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void wxFileDialog::SetDirectory(const wxString& dir)
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{
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wxFileDialogBase::SetDirectory(dir);
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m_fc.SetDirectory(dir);
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}
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void wxFileDialog::SetFilename(const wxString& name)
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{
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wxFileDialogBase::SetFilename(name);
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if (HasFdFlag(wxFD_SAVE))
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{
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gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
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}
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else
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{
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wxString path( GetDirectory() );
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if (path.empty())
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{
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// SetPath() fires an assert if fed other than filepaths
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return;
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}
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SetPath(wxFileName(path, name).GetFullPath());
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}
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}
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wxString wxFileDialog::GetFilename() const
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{
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wxString currentFilename( m_fc.GetFilename() );
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if (currentFilename.empty())
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{
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// m_fc.GetFilename() will return empty until the dialog has been shown
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// in which case use any previously provided value
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currentFilename = m_fileName;
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}
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return currentFilename;
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}
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void wxFileDialog::SetWildcard(const wxString& wildCard)
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{
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wxFileDialogBase::SetWildcard(wildCard);
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m_fc.SetWildcard( GetWildcard() );
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}
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void wxFileDialog::SetFilterIndex(int filterIndex)
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{
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m_fc.SetFilterIndex( filterIndex);
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}
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int wxFileDialog::GetFilterIndex() const
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{
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return m_fc.GetFilterIndex();
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}
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void wxFileDialog::GTKSelectionChanged(const wxString& filename)
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{
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m_currentlySelectedFilename = filename;
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if (m_extraControl)
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m_extraControl->UpdateWindowUI(wxUPDATE_UI_RECURSE);
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}
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#endif // wxUSE_FILEDLG
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