mirror of
https://github.com/cookiengineer/audacity
synced 2025-11-04 08:04:06 +01:00
615 lines
18 KiB
C++
615 lines
18 KiB
C++
//
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// Copied from wxWidgets 3.0.2 and modified for Audacity
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//
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/////////////////////////////////////////////////////////////////////////////
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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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#include <gtk/gtk.h>
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#include "../FileDialog.h"
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#include "wx/intl.h"
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#include "wx/msgdlg.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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#include <wx/sizer.h>
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#define wxGTK_CONV(s) (s).utf8_str()
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#define wxGTK_CONV_FN(s) (s).fn_str()
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// ----------------------------------------------------------------------------
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// Convenience class for g_freeing a gchar* on scope exit automatically
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// ----------------------------------------------------------------------------
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class wxGtkString
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{
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public:
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explicit wxGtkString(gchar *s) : m_str(s) { }
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~wxGtkString() { g_free(m_str); }
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const gchar *c_str() const { return m_str; }
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operator gchar *() const { return m_str; }
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private:
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gchar *m_str;
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wxDECLARE_NO_COPY_CLASS(wxGtkString);
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};
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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, FileDialog *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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chdir(folder);
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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), FileDialog *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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FileDialog *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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FileDialog *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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static void gtk_filedialog_folderchanged_callback(GtkFileChooser *chooser,
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FileDialog *dialog)
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{
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dialog->GTKFolderChanged();
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}
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static void gtk_filedialog_filterchanged_callback(GtkFileChooser *chooser,
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GParamSpec *pspec,
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FileDialog *dialog)
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{
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dialog->GTKFilterChanged();
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}
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static GtkWidget* find_widget(GtkWidget* parent, const gchar* name, int depth)
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{
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// printf("%*.*c%s\n", depth, depth, ' ', gtk_widget_get_name(parent));
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GtkWidget *widget = NULL;
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if (g_strcasecmp(gtk_widget_get_name(parent), name) == 0)
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{
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return parent;
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}
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if (GTK_IS_BIN(parent))
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{
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return find_widget(gtk_bin_get_child(GTK_BIN(parent)), name, depth + 1);
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}
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if (GTK_IS_CONTAINER(parent))
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{
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GList *list = gtk_container_get_children(GTK_CONTAINER(parent));
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for (GList *node = list; node; node = node->next)
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{
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widget = find_widget(GTK_WIDGET(node->data), name, depth + 1);
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if (widget)
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{
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break;
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}
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}
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g_list_free(list);
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}
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return widget;
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}
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} // extern "C"
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void FileDialog::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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// In GTK 3+, adding our container as the extra widget can cause the
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// the filter combo to grow to the same height as our container. This
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// makes for a very odd looking filter combo. So, we manually add our
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// container below the action bar.
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#if GTK_CHECK_VERSION(3,0,0)
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GtkWidget *actionbar = find_widget(m_widget, "GtkActionBar", 0);
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if (actionbar)
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{
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GtkWidget *vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
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gtk_container_add(GTK_CONTAINER(vbox), child->m_widget);
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gtk_box_set_child_packing(GTK_BOX(vbox), child->m_widget, TRUE, TRUE, 0, GTK_PACK_START);
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gtk_widget_show(vbox);
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GtkWidget *abparent = gtk_widget_get_parent(actionbar);
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gtk_container_add(GTK_CONTAINER(abparent), vbox);
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gtk_box_set_child_packing(GTK_BOX(abparent), vbox, FALSE, FALSE, 0, GTK_PACK_END);
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gtk_box_reorder_child(GTK_BOX(abparent), actionbar, -2);
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}
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#else
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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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#endif
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}
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//-----------------------------------------------------------------------------
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// FileDialog
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(FileDialog,FileDialogBase)
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BEGIN_EVENT_TABLE(FileDialog,FileDialogBase)
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EVT_BUTTON(wxID_OK, FileDialog::OnFakeOk)
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EVT_SIZE(FileDialog::OnSize)
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END_EVENT_TABLE()
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FileDialog::FileDialog(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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: FileDialogBase()
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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 FileDialog::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 (!FileDialogBase::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("FileDialog 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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g_signal_connect (m_widget, "current-folder-changed",
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G_CALLBACK (gtk_filedialog_folderchanged_callback), this);
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g_signal_connect (m_widget, "notify::filter",
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G_CALLBACK (gtk_filedialog_filterchanged_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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FileDialog::~FileDialog()
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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 FileDialog::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 FileDialog::ShowModal()
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{
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WX_HOOK_MODAL_DIALOG();
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// Create the root window
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wxBoxSizer *verticalSizer = new wxBoxSizer(wxVERTICAL);
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wxPanel *root = new wxPanel(this, wxID_ANY);
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if (HasUserPaneCreator())
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{
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wxPanel *userpane = new wxPanel(root, wxID_ANY);
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CreateUserPane(userpane);
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wxBoxSizer *horizontalSizer = new wxBoxSizer(wxHORIZONTAL);
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horizontalSizer->Add(userpane, 1, wxEXPAND, 0);
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verticalSizer->Add(horizontalSizer, 1, wxEXPAND|wxALL, 0);
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}
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root->SetSizer(verticalSizer);
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root->Layout();
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verticalSizer->SetSizeHints(root);
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// Send an initial filter changed event
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GTKFilterChanged();
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return wxDialog::ShowModal();
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}
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void FileDialog::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 FileDialog::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 FileDialog::GetPath() const
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{
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return m_fc.GetPath();
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}
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void FileDialog::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 FileDialog::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 FileDialog::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 FileDialog::SetPath(const wxString& path)
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{
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FileDialogBase::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
|
|
// 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());
|
|
}
|
|
|
|
void FileDialog::SetDirectory(const wxString& dir)
|
|
{
|
|
FileDialogBase::SetDirectory(dir);
|
|
|
|
m_fc.SetDirectory(dir);
|
|
}
|
|
|
|
void FileDialog::SetFilename(const wxString& name)
|
|
{
|
|
FileDialogBase::SetFilename(name);
|
|
|
|
if (HasFdFlag(wxFD_SAVE))
|
|
{
|
|
gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(m_widget), wxGTK_CONV(name));
|
|
}
|
|
|
|
else
|
|
{
|
|
wxString path( GetDirectory() );
|
|
if (path.empty())
|
|
{
|
|
// SetPath() fires an assert if fed other than filepaths
|
|
return;
|
|
}
|
|
SetPath(wxFileName(path, name).GetFullPath());
|
|
}
|
|
}
|
|
|
|
wxString FileDialog::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;
|
|
}
|
|
|
|
void FileDialog::SetWildcard(const wxString& wildCard)
|
|
{
|
|
FileDialogBase::SetWildcard(wildCard);
|
|
m_fc.SetWildcard( GetWildcard() );
|
|
}
|
|
|
|
void FileDialog::SetFilterIndex(int filterIndex)
|
|
{
|
|
m_fc.SetFilterIndex( filterIndex);
|
|
}
|
|
|
|
int FileDialog::GetFilterIndex() const
|
|
{
|
|
return m_fc.GetFilterIndex();
|
|
}
|
|
|
|
void FileDialog::GTKSelectionChanged(const wxString& filename)
|
|
{
|
|
m_currentlySelectedFilename = filename;
|
|
|
|
wxFileCtrlEvent event(wxEVT_FILECTRL_SELECTIONCHANGED, this, GetId());
|
|
|
|
wxArrayString filenames;
|
|
GetFilenames(filenames);
|
|
|
|
event.SetDirectory(GetDirectory());
|
|
event.SetFiles(filenames);
|
|
|
|
GetEventHandler()->ProcessEvent(event);
|
|
}
|
|
|
|
void FileDialog::GTKFolderChanged()
|
|
{
|
|
wxFileCtrlEvent event(wxEVT_FILECTRL_FOLDERCHANGED, this, GetId());
|
|
|
|
event.SetDirectory(GetDirectory());
|
|
|
|
GetEventHandler()->ProcessEvent(event);
|
|
}
|
|
|
|
void FileDialog::GTKFilterChanged()
|
|
{
|
|
wxFileCtrlEvent event(wxEVT_FILECTRL_FILTERCHANGED, this, GetId());
|
|
|
|
event.SetFilterIndex(GetFilterIndex());
|
|
|
|
GetEventHandler()->ProcessEvent(event);
|
|
}
|
|
|