Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 867 insertions, 0 deletions

diff --git a/src/ui/dialog/filedialogimpl-gtkmm.cpp b/src/ui/dialog/filedialogimpl-gtkmm.cpp
new file mode 100644
index 0000000..c3aba06
--- /dev/null
+++ b/src/ui/dialog/filedialogimpl-gtkmm.cpp
@@ -0,0 +1,867 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * @file
+ * Implementation of the file dialog interfaces defined in filedialogimpl.h.
+ */
+/* Authors:
+ *   Bob Jamison
+ *   Joel Holdsworth
+ *   Bruno Dilly
+ *   Other dudes from The Inkscape Organization
+ *   Abhishek Sharma
+ *
+ * Copyright (C) 2004-2007 Bob Jamison
+ * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
+ * Copyright (C) 2007-2008 Joel Holdsworth
+ * Copyright (C) 2004-2007 The Inkscape Organization
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <iostream>
+
+#include <glibmm/convert.h>
+#include <glibmm/fileutils.h>
+#include <glibmm/i18n.h>
+#include <glibmm/miscutils.h>
+#include <glibmm/regex.h>
+#include <gtkmm/expander.h>
+
+#include "filedialogimpl-gtkmm.h"
+
+#include "document.h"
+#include "inkscape.h"
+#include "path-prefix.h"
+#include "preferences.h"
+
+#include "extension/db.h"
+#include "extension/input.h"
+#include "extension/output.h"
+
+#include "io/resource.h"
+#include "io/sys.h"
+
+#include "ui/dialog-events.h"
+#include "ui/view/svg-view-widget.h"
+
+// Routines from file.cpp
+#undef INK_DUMP_FILENAME_CONV
+
+#ifdef INK_DUMP_FILENAME_CONV
+void dump_str(const gchar *str, const gchar *prefix);
+void dump_ustr(const Glib::ustring &ustr);
+#endif
+
+
+
+namespace Inkscape {
+namespace UI {
+namespace Dialog {
+
+
+
+//########################################################################
+//### U T I L I T Y
+//########################################################################
+
+void fileDialogExtensionToPattern(Glib::ustring &pattern, Glib::ustring &extension)
+{
+    for (unsigned int ch : extension) {
+        if (Glib::Unicode::isalpha(ch)) {
+            pattern += '[';
+            pattern += Glib::Unicode::toupper(ch);
+            pattern += Glib::Unicode::tolower(ch);
+            pattern += ']';
+        } else {
+            pattern += ch;
+        }
+    }
+}
+
+
+void findEntryWidgets(Gtk::Container *parent, std::vector<Gtk::Entry *> &result)
+{
+    if (!parent) {
+        return;
+    }
+    std::vector<Gtk::Widget *> children = parent->get_children();
+    for (auto child : children) {
+        GtkWidget *wid = child->gobj();
+        if (GTK_IS_ENTRY(wid))
+            result.push_back(dynamic_cast<Gtk::Entry *>(child));
+        else if (GTK_IS_CONTAINER(wid))
+            findEntryWidgets(dynamic_cast<Gtk::Container *>(child), result);
+    }
+}
+
+void findExpanderWidgets(Gtk::Container *parent, std::vector<Gtk::Expander *> &result)
+{
+    if (!parent)
+        return;
+    std::vector<Gtk::Widget *> children = parent->get_children();
+    for (auto child : children) {
+        GtkWidget *wid = child->gobj();
+        if (GTK_IS_EXPANDER(wid))
+            result.push_back(dynamic_cast<Gtk::Expander *>(child));
+        else if (GTK_IS_CONTAINER(wid))
+            findExpanderWidgets(dynamic_cast<Gtk::Container *>(child), result);
+    }
+}
+
+
+/*#########################################################################
+### F I L E     D I A L O G    B A S E    C L A S S
+#########################################################################*/
+
+void FileDialogBaseGtk::internalSetup()
+{
+    // Open executable file dialogs don't need the preview panel
+    if (_dialogType != EXE_TYPES) {
+        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+        bool enablePreview   = prefs->getBool(preferenceBase + "/enable_preview", true);
+        bool enableSVGExport = prefs->getBool(preferenceBase + "/enable_svgexport", false);
+
+        previewCheckbox.set_label(Glib::ustring(_("Enable preview")));
+        previewCheckbox.set_active(enablePreview);
+
+        previewCheckbox.signal_toggled().connect(sigc::mem_fun(*this, &FileDialogBaseGtk::_updatePreviewCallback));
+
+        svgexportCheckbox.set_label(Glib::ustring(_("Export as SVG 1.1 per settings in Preferences dialog")));
+        svgexportCheckbox.set_active(enableSVGExport);
+
+        svgexportCheckbox.signal_toggled().connect(sigc::mem_fun(*this, &FileDialogBaseGtk::_svgexportEnabledCB));
+
+        // Catch selection-changed events, so we can adjust the text widget
+        signal_update_preview().connect(sigc::mem_fun(*this, &FileDialogBaseGtk::_updatePreviewCallback));
+
+        //###### Add a preview widget
+        set_preview_widget(svgPreview);
+        set_preview_widget_active(enablePreview);
+        set_use_preview_label(false);
+    }
+}
+
+
+void FileDialogBaseGtk::cleanup(bool showConfirmed)
+{
+    if (_dialogType != EXE_TYPES) {
+        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+        if (showConfirmed) {
+            prefs->setBool(preferenceBase + "/enable_preview", previewCheckbox.get_active());
+        }
+    }
+}
+
+
+void FileDialogBaseGtk::_svgexportEnabledCB()
+{
+    bool enabled = svgexportCheckbox.get_active();
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    prefs->setBool(preferenceBase + "/enable_svgexport", enabled);
+}
+
+
+
+/**
+ * Callback for checking if the preview needs to be redrawn
+ */
+void FileDialogBaseGtk::_updatePreviewCallback()
+{
+    bool enabled = previewCheckbox.get_active();
+
+    set_preview_widget_active(enabled);
+
+    if (!enabled)
+        return;
+
+    Glib::ustring fileName = get_preview_filename();
+    if (fileName.empty()) {
+        fileName = get_preview_uri();
+    }
+
+    if (!fileName.empty()) {
+        svgPreview.set(fileName, _dialogType);
+    } else {
+        svgPreview.showNoPreview();
+    }
+}
+
+
+/*#########################################################################
+### F I L E    O P E N
+#########################################################################*/
+
+/**
+ * Constructor.  Not called directly.  Use the factory.
+ */
+FileOpenDialogImplGtk::FileOpenDialogImplGtk(Gtk::Window &parentWindow, const Glib::ustring &dir,
+                                             FileDialogType fileTypes, const Glib::ustring &title)
+    : FileDialogBaseGtk(parentWindow, title, Gtk::FILE_CHOOSER_ACTION_OPEN, fileTypes, "/dialogs/open")
+{
+
+
+    if (_dialogType == EXE_TYPES) {
+        /* One file at a time */
+        set_select_multiple(false);
+    } else {
+        /* And also Multiple Files */
+        set_select_multiple(true);
+    }
+
+    set_local_only(false);
+
+    /* Initialize to Autodetect */
+    extension = nullptr;
+    /* No filename to start out with */
+    myFilename = "";
+
+    /* Set our dialog type (open, import, etc...)*/
+    _dialogType = fileTypes;
+
+
+    /* Set the pwd and/or the filename */
+    if (dir.size() > 0) {
+        Glib::ustring udir(dir);
+        Glib::ustring::size_type len = udir.length();
+        // leaving a trailing backslash on the directory name leads to the infamous
+        // double-directory bug on win32
+        if (len != 0 && udir[len - 1] == '\\')
+            udir.erase(len - 1);
+        if (_dialogType == EXE_TYPES) {
+            set_filename(udir.c_str());
+        } else {
+            set_current_folder(udir.c_str());
+        }
+    }
+
+    if (_dialogType != EXE_TYPES) {
+        set_extra_widget(previewCheckbox);
+    }
+
+    //###### Add the file types menu
+    createFilterMenu();
+
+    add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
+    set_default(*add_button(_("_Open"), Gtk::RESPONSE_OK));
+
+    //###### Allow easy access to our examples folder
+
+    using namespace Inkscape::IO::Resource;
+    auto examplesdir = get_path_string(SYSTEM, EXAMPLES);
+    if (Glib::file_test(examplesdir, Glib::FILE_TEST_IS_DIR) && //
+        Glib::path_is_absolute(examplesdir)) {
+        add_shortcut_folder(examplesdir);
+    }
+}
+
+/**
+ * Destructor
+ */
+FileOpenDialogImplGtk::~FileOpenDialogImplGtk()
+= default;
+
+void FileOpenDialogImplGtk::addFilterMenu(Glib::ustring name, Glib::ustring pattern)
+{
+    auto allFilter = Gtk::FileFilter::create();
+    allFilter->set_name(_(name.c_str()));
+    allFilter->add_pattern(pattern);
+    extensionMap[Glib::ustring(_("All Files"))] = nullptr;
+    add_filter(allFilter);
+}
+
+void FileOpenDialogImplGtk::createFilterMenu()
+{
+    if (_dialogType == CUSTOM_TYPE) {
+        return;
+    }
+
+    if (_dialogType == EXE_TYPES) {
+        auto allFilter = Gtk::FileFilter::create();
+        allFilter->set_name(_("All Files"));
+        allFilter->add_pattern("*");
+        extensionMap[Glib::ustring(_("All Files"))] = nullptr;
+        add_filter(allFilter);
+    } else {
+        auto allInkscapeFilter = Gtk::FileFilter::create();
+        allInkscapeFilter->set_name(_("All Inkscape Files"));
+
+        auto allFilter = Gtk::FileFilter::create();
+        allFilter->set_name(_("All Files"));
+        allFilter->add_pattern("*");
+
+        auto allImageFilter = Gtk::FileFilter::create();
+        allImageFilter->set_name(_("All Images"));
+
+        auto allVectorFilter = Gtk::FileFilter::create();
+        allVectorFilter->set_name(_("All Vectors"));
+
+        auto allBitmapFilter = Gtk::FileFilter::create();
+        allBitmapFilter->set_name(_("All Bitmaps"));
+        extensionMap[Glib::ustring(_("All Inkscape Files"))] = nullptr;
+        add_filter(allInkscapeFilter);
+
+        extensionMap[Glib::ustring(_("All Files"))] = nullptr;
+        add_filter(allFilter);
+
+        extensionMap[Glib::ustring(_("All Images"))] = nullptr;
+        add_filter(allImageFilter);
+
+        extensionMap[Glib::ustring(_("All Vectors"))] = nullptr;
+        add_filter(allVectorFilter);
+
+        extensionMap[Glib::ustring(_("All Bitmaps"))] = nullptr;
+        add_filter(allBitmapFilter);
+
+        // patterns added dynamically below
+        Inkscape::Extension::DB::InputList extension_list;
+        Inkscape::Extension::db.get_input_list(extension_list);
+
+        for (auto imod : extension_list)
+        {
+            // FIXME: would be nice to grey them out instead of not listing them
+            if (imod->deactivated())
+                continue;
+
+            Glib::ustring upattern("*");
+            Glib::ustring extension = imod->get_extension();
+            fileDialogExtensionToPattern(upattern, extension);
+
+            Glib::ustring uname(imod->get_filetypename(true));
+
+            auto filter = Gtk::FileFilter::create();
+            filter->set_name(uname);
+            filter->add_pattern(upattern);
+            add_filter(filter);
+            extensionMap[uname] = imod;
+
+// g_message("ext %s:%s '%s'\n", ioext->name, ioext->mimetype, upattern.c_str());
+            allInkscapeFilter->add_pattern(upattern);
+            if (strncmp("image", imod->get_mimetype(), 5) == 0)
+                allImageFilter->add_pattern(upattern);
+
+            // uncomment this to find out all mime types supported by Inkscape import/open
+            // g_print ("%s\n", imod->get_mimetype());
+
+            // I don't know of any other way to define "bitmap" formats other than by listing them
+            if (strncmp("image/png", imod->get_mimetype(), 9) == 0 ||
+                strncmp("image/jpeg", imod->get_mimetype(), 10) == 0 ||
+                strncmp("image/gif", imod->get_mimetype(), 9) == 0 ||
+                strncmp("image/x-icon", imod->get_mimetype(), 12) == 0 ||
+                strncmp("image/x-navi-animation", imod->get_mimetype(), 22) == 0 ||
+                strncmp("image/x-cmu-raster", imod->get_mimetype(), 18) == 0 ||
+                strncmp("image/x-xpixmap", imod->get_mimetype(), 15) == 0 ||
+                strncmp("image/bmp", imod->get_mimetype(), 9) == 0 ||
+                strncmp("image/vnd.wap.wbmp", imod->get_mimetype(), 18) == 0 ||
+                strncmp("image/tiff", imod->get_mimetype(), 10) == 0 ||
+                strncmp("image/x-xbitmap", imod->get_mimetype(), 15) == 0 ||
+                strncmp("image/x-tga", imod->get_mimetype(), 11) == 0 ||
+                strncmp("image/x-pcx", imod->get_mimetype(), 11) == 0)
+            {
+                allBitmapFilter->add_pattern(upattern);
+             } else {
+                allVectorFilter->add_pattern(upattern);
+            }
+        }
+    }
+    return;
+}
+
+/**
+ * Show this dialog modally.  Return true if user hits [OK]
+ */
+bool FileOpenDialogImplGtk::show()
+{
+    set_modal(TRUE); // Window
+    sp_transientize(GTK_WIDGET(gobj())); // Make transient
+    gint b = run(); // Dialog
+    svgPreview.showNoPreview();
+    hide();
+
+    if (b == Gtk::RESPONSE_OK) {
+        // This is a hack, to avoid the warning messages that
+        // Gtk::FileChooser::get_filter() returns
+        // should be:  Gtk::FileFilter *filter = get_filter();
+        GtkFileChooser *gtkFileChooser = Gtk::FileChooser::gobj();
+        GtkFileFilter *filter = gtk_file_chooser_get_filter(gtkFileChooser);
+        if (filter) {
+            // Get which extension was chosen, if any
+            extension = extensionMap[gtk_file_filter_get_name(filter)];
+        }
+        myFilename = get_filename();
+
+        if (myFilename.empty()) {
+            myFilename = get_uri();
+        }
+
+        cleanup(true);
+        return true;
+    } else {
+        cleanup(false);
+        return false;
+    }
+}
+
+
+
+/**
+ * Get the file extension type that was selected by the user. Valid after an [OK]
+ */
+Inkscape::Extension::Extension *FileOpenDialogImplGtk::getSelectionType()
+{
+    return extension;
+}
+
+
+/**
+ * Get the file name chosen by the user.   Valid after an [OK]
+ */
+Glib::ustring FileOpenDialogImplGtk::getFilename()
+{
+    return myFilename;
+}
+
+
+/**
+ * To Get Multiple filenames selected at-once.
+ */
+std::vector<Glib::ustring> FileOpenDialogImplGtk::getFilenames()
+{
+    auto result_tmp = get_filenames();
+
+    // Copy filenames to a vector of type Glib::ustring
+    std::vector<Glib::ustring> result;
+
+    for (auto it : result_tmp)
+        result.emplace_back(it);
+
+    if (result.empty()) {
+        result = get_uris();
+    }
+
+    return result;
+}
+
+Glib::ustring FileOpenDialogImplGtk::getCurrentDirectory()
+{
+    return get_current_folder();
+}
+
+
+
+//########################################################################
+//# F I L E    S A V E
+//########################################################################
+
+/**
+ * Constructor
+ */
+FileSaveDialogImplGtk::FileSaveDialogImplGtk(Gtk::Window &parentWindow, const Glib::ustring &dir,
+                                             FileDialogType fileTypes, const Glib::ustring &title,
+                                             const Glib::ustring & /*default_key*/, const gchar *docTitle,
+                                             const Inkscape::Extension::FileSaveMethod save_method)
+    : FileDialogBaseGtk(parentWindow, title, Gtk::FILE_CHOOSER_ACTION_SAVE, fileTypes,
+                        (save_method == Inkscape::Extension::FILE_SAVE_METHOD_SAVE_COPY) ? "/dialogs/save_copy"
+                                                                                         : "/dialogs/save_as")
+    , save_method(save_method)
+    , fromCB(false)
+    , checksBox(Gtk::ORIENTATION_VERTICAL)
+    , childBox(Gtk::ORIENTATION_HORIZONTAL)
+{
+    FileSaveDialog::myDocTitle = docTitle;
+
+    /* One file at a time */
+    set_select_multiple(false);
+
+    set_local_only(false);
+
+    /* Initialize to Autodetect */
+    extension = nullptr;
+    /* No filename to start out with */
+    myFilename = "";
+
+    /* Set our dialog type (save, export, etc...)*/
+    _dialogType = fileTypes;
+
+    /* Set the pwd and/or the filename */
+    if (dir.size() > 0) {
+        Glib::ustring udir(dir);
+        Glib::ustring::size_type len = udir.length();
+        // leaving a trailing backslash on the directory name leads to the infamous
+        // double-directory bug on win32
+        if ((len != 0) && (udir[len - 1] == '\\')) {
+            udir.erase(len - 1);
+        }
+        myFilename = udir;
+    }
+
+    //###### Do we want the .xxx extension automatically added?
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+    fileTypeCheckbox.set_label(Glib::ustring(_("Append filename extension automatically")));
+    if (save_method == Inkscape::Extension::FILE_SAVE_METHOD_SAVE_COPY) {
+        fileTypeCheckbox.set_active(prefs->getBool("/dialogs/save_copy/append_extension", true));
+    } else {
+        fileTypeCheckbox.set_active(prefs->getBool("/dialogs/save_as/append_extension", true));
+    }
+
+    fileTypeComboBox.set_size_request(200, 40);
+    fileTypeComboBox.signal_changed().connect(sigc::mem_fun(*this, &FileSaveDialogImplGtk::fileTypeChangedCallback));
+
+    if (_dialogType != CUSTOM_TYPE)
+        createFilterMenu();
+
+    childBox.pack_start(checksBox);
+    childBox.pack_end(fileTypeComboBox);
+    checksBox.pack_start(fileTypeCheckbox);
+    checksBox.pack_start(previewCheckbox);
+    checksBox.pack_start(svgexportCheckbox);
+
+    set_extra_widget(childBox);
+
+    // Let's do some customization
+    fileNameEntry = nullptr;
+    Gtk::Container *cont = get_toplevel();
+    std::vector<Gtk::Entry *> entries;
+    findEntryWidgets(cont, entries);
+    // g_message("Found %d entry widgets\n", entries.size());
+    if (!entries.empty()) {
+        // Catch when user hits [return] on the text field
+        fileNameEntry = entries[0];
+        fileNameEntry->signal_activate().connect(
+            sigc::mem_fun(*this, &FileSaveDialogImplGtk::fileNameEntryChangedCallback));
+    }
+    signal_selection_changed().connect(
+        sigc::mem_fun(*this, &FileSaveDialogImplGtk::fileNameChanged));
+
+    // Let's do more customization
+    std::vector<Gtk::Expander *> expanders;
+    findExpanderWidgets(cont, expanders);
+    // g_message("Found %d expander widgets\n", expanders.size());
+    if (!expanders.empty()) {
+        // Always show the file list
+        Gtk::Expander *expander = expanders[0];
+        expander->set_expanded(true);
+    }
+
+    // allow easy access to the user's own templates folder
+    using namespace Inkscape::IO::Resource;
+    char const *templates = Inkscape::IO::Resource::get_path(USER, TEMPLATES);
+    if (Inkscape::IO::file_test(templates, G_FILE_TEST_EXISTS) &&
+        Inkscape::IO::file_test(templates, G_FILE_TEST_IS_DIR) && g_path_is_absolute(templates)) {
+        add_shortcut_folder(templates);
+    }
+
+    // if (extension == NULL)
+    //    checkbox.set_sensitive(FALSE);
+
+    add_button(_("_Cancel"), Gtk::RESPONSE_CANCEL);
+    set_default(*add_button(_("_Save"), Gtk::RESPONSE_OK));
+
+    show_all_children();
+}
+
+/**
+ * Destructor
+ */
+FileSaveDialogImplGtk::~FileSaveDialogImplGtk()
+= default;
+
+/**
+ * Callback for fileNameEntry widget
+ */
+void FileSaveDialogImplGtk::fileNameEntryChangedCallback()
+{
+    if (!fileNameEntry)
+        return;
+
+    Glib::ustring fileName = fileNameEntry->get_text();
+    if (!Glib::get_charset()) // If we are not utf8
+        fileName = Glib::filename_to_utf8(fileName);
+
+    // g_message("User hit return.  Text is '%s'\n", fileName.c_str());
+
+    if (!Glib::path_is_absolute(fileName)) {
+        // try appending to the current path
+        // not this way: fileName = get_current_folder() + "/" + fileName;
+        std::vector<Glib::ustring> pathSegments;
+        pathSegments.emplace_back(get_current_folder());
+        pathSegments.push_back(fileName);
+        fileName = Glib::build_filename(pathSegments);
+    }
+
+    // g_message("path:'%s'\n", fileName.c_str());
+
+    if (Glib::file_test(fileName, Glib::FILE_TEST_IS_DIR)) {
+        set_current_folder(fileName);
+    } else if (/*Glib::file_test(fileName, Glib::FILE_TEST_IS_REGULAR)*/ true) {
+        // dialog with either (1) select a regular file or (2) cd to dir
+        // simulate an 'OK'
+        set_filename(fileName);
+        response(Gtk::RESPONSE_OK);
+    }
+}
+
+
+
+/**
+ * Callback for fileNameEntry widget
+ */
+void FileSaveDialogImplGtk::fileTypeChangedCallback()
+{
+    int sel = fileTypeComboBox.get_active_row_number();
+    if ((sel < 0) || (sel >= (int)fileTypes.size()))
+        return;
+
+    FileType type = fileTypes[sel];
+    // g_message("selected: %s\n", type.name.c_str());
+
+    extension = type.extension;
+    auto filter = Gtk::FileFilter::create();
+    filter->add_pattern(type.pattern);
+    set_filter(filter);
+
+    if (fromCB) {
+        //do not update if called from a name change
+        fromCB = false;
+        return;
+    }
+
+    updateNameAndExtension();
+}
+
+void FileSaveDialogImplGtk::fileNameChanged() {
+    Glib::ustring name = get_filename();
+    Glib::ustring::size_type pos = name.rfind('.');
+    if ( pos == Glib::ustring::npos ) return;
+    Glib::ustring ext = name.substr( pos ).casefold();
+    if (extension && Glib::ustring(static_cast<Inkscape::Extension::Output *>(extension)->get_extension()).casefold() == ext ) return;
+    if (knownExtensions.find(ext) == knownExtensions.end()) return;
+    fromCB = true;
+    fileTypeComboBox.set_active_text(knownExtensions[ext]->get_filetypename(true));
+}
+
+void FileSaveDialogImplGtk::addFileType(Glib::ustring name, Glib::ustring pattern)
+{
+    //#Let user choose
+    FileType guessType;
+    guessType.name = name;
+    guessType.pattern = pattern;
+    guessType.extension = nullptr;
+    fileTypeComboBox.append(guessType.name);
+    fileTypes.push_back(guessType);
+
+
+    fileTypeComboBox.set_active(0);
+    fileTypeChangedCallback(); // call at least once to set the filter
+}
+
+void FileSaveDialogImplGtk::createFilterMenu()
+{
+    Inkscape::Extension::DB::OutputList extension_list;
+    Inkscape::Extension::db.get_output_list(extension_list);
+    knownExtensions.clear();
+
+    bool is_raster = _dialogType == RASTER_TYPES;
+
+    for (auto omod : extension_list) {
+        // FIXME: would be nice to grey them out instead of not listing them
+        if (omod->deactivated() || (omod->is_raster() != is_raster))
+            continue;
+
+        // This extension is limited to save copy only.
+        if (omod->savecopy_only() && save_method != Inkscape::Extension::FILE_SAVE_METHOD_SAVE_COPY)
+            continue;
+
+        FileType type;
+        type.name = omod->get_filetypename(true);
+        type.pattern = "*";
+        Glib::ustring extension = omod->get_extension();
+        knownExtensions.insert(std::pair<Glib::ustring, Inkscape::Extension::Output*>(extension.casefold(), omod));
+        fileDialogExtensionToPattern(type.pattern, extension);
+        type.extension = omod;
+        fileTypeComboBox.append(type.name);
+        fileTypes.push_back(type);
+    }
+
+    //#Let user choose
+    FileType guessType;
+    guessType.name = _("Guess from extension");
+    guessType.pattern = "*";
+    guessType.extension = nullptr;
+    fileTypeComboBox.append(guessType.name);
+    fileTypes.push_back(guessType);
+
+
+    fileTypeComboBox.set_active(0);
+    fileTypeChangedCallback(); // call at least once to set the filter
+}
+
+
+
+/**
+ * Show this dialog modally.  Return true if user hits [OK]
+ */
+bool FileSaveDialogImplGtk::show()
+{
+    change_path(myFilename);
+    set_modal(TRUE); // Window
+    sp_transientize(GTK_WIDGET(gobj())); // Make transient
+    gint b = run(); // Dialog
+    svgPreview.showNoPreview();
+    set_preview_widget_active(false);
+    hide();
+
+    if (b == Gtk::RESPONSE_OK) {
+        updateNameAndExtension();
+        Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+        // Store changes of the "Append filename automatically" checkbox back to preferences.
+        if (save_method == Inkscape::Extension::FILE_SAVE_METHOD_SAVE_COPY) {
+            prefs->setBool("/dialogs/save_copy/append_extension", fileTypeCheckbox.get_active());
+        } else {
+            prefs->setBool("/dialogs/save_as/append_extension", fileTypeCheckbox.get_active());
+        }
+
+        Inkscape::Extension::store_file_extension_in_prefs((extension != nullptr ? extension->get_id() : ""), save_method);
+
+        cleanup(true);
+
+        return true;
+    } else {
+        cleanup(false);
+        return false;
+    }
+}
+
+
+/**
+ * Get the file extension type that was selected by the user. Valid after an [OK]
+ */
+Inkscape::Extension::Extension *FileSaveDialogImplGtk::getSelectionType()
+{
+    return extension;
+}
+
+void FileSaveDialogImplGtk::setSelectionType(Inkscape::Extension::Extension *key)
+{
+    // If no pointer to extension is passed in, look up based on filename extension.
+    if (!key) {
+        // Not quite UTF-8 here.
+        gchar *filenameLower = g_ascii_strdown(myFilename.c_str(), -1);
+        for (int i = 0; !key && (i < (int)fileTypes.size()); i++) {
+            Inkscape::Extension::Output *ext = dynamic_cast<Inkscape::Extension::Output *>(fileTypes[i].extension);
+            if (ext && ext->get_extension()) {
+                gchar *extensionLower = g_ascii_strdown(ext->get_extension(), -1);
+                if (g_str_has_suffix(filenameLower, extensionLower)) {
+                    key = fileTypes[i].extension;
+                }
+                g_free(extensionLower);
+            }
+        }
+        g_free(filenameLower);
+    }
+
+    // Ensure the proper entry in the combo box is selected.
+    if (key) {
+        extension = key;
+        gchar const *extensionID = extension->get_id();
+        if (extensionID) {
+            for (int i = 0; i < (int)fileTypes.size(); i++) {
+                Inkscape::Extension::Extension *ext = fileTypes[i].extension;
+                if (ext) {
+                    gchar const *id = ext->get_id();
+                    if (id && (strcmp(extensionID, id) == 0)) {
+                        int oldSel = fileTypeComboBox.get_active_row_number();
+                        if (i != oldSel) {
+                            fileTypeComboBox.set_active(i);
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+    }
+}
+
+Glib::ustring FileSaveDialogImplGtk::getCurrentDirectory()
+{
+    return get_current_folder();
+}
+
+
+/*void
+FileSaveDialogImplGtk::change_title(const Glib::ustring& title)
+{
+    set_title(title);
+}*/
+
+/**
+  * Change the default save path location.
+  */
+void FileSaveDialogImplGtk::change_path(const Glib::ustring &path)
+{
+    myFilename = path;
+
+    if (Glib::file_test(myFilename, Glib::FILE_TEST_IS_DIR)) {
+        // fprintf(stderr,"set_current_folder(%s)\n",myFilename.c_str());
+        set_current_folder(myFilename);
+    } else {
+        // fprintf(stderr,"set_filename(%s)\n",myFilename.c_str());
+        if (Glib::file_test(myFilename, Glib::FILE_TEST_EXISTS)) {
+            set_filename(myFilename);
+        } else {
+            std::string dirName = Glib::path_get_dirname(myFilename);
+            if (dirName != get_current_folder()) {
+                set_current_folder(dirName);
+            }
+        }
+        Glib::ustring basename = Glib::path_get_basename(myFilename);
+        // fprintf(stderr,"set_current_name(%s)\n",basename.c_str());
+        try
+        {
+            set_current_name(Glib::filename_to_utf8(basename));
+        }
+        catch (Glib::ConvertError &e)
+        {
+            g_warning("Error converting save filename to UTF-8.");
+            // try a fallback.
+            set_current_name(basename);
+        }
+    }
+}
+
+void FileSaveDialogImplGtk::updateNameAndExtension()
+{
+    // Pick up any changes the user has typed in.
+    Glib::ustring tmp = get_filename();
+
+    if (tmp.empty()) {
+        tmp = get_uri();
+    }
+
+    if (!tmp.empty()) {
+        myFilename = tmp;
+    }
+
+    Inkscape::Extension::Output *newOut = extension ? dynamic_cast<Inkscape::Extension::Output *>(extension) : nullptr;
+    if (fileTypeCheckbox.get_active() && newOut) {
+        // Append the file extension if it's not already present and display it in the file name entry field
+        appendExtension(myFilename, newOut);
+        change_path(myFilename);
+    }
+}
+
+
+} // namespace Dialog
+} // namespace UI
+} // namespace Inkscape
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :