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+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * @file
+ * Inkview - An SVG file viewer.
+ */
+/*
+ * Authors:
+ * Tavmjong Bah
+ *
+ * Copyright (C) 2018 Authors
+ *
+ * The contents of this file may be used under the GNU General Public License Version 2 or later.
+ * Read the file 'COPYING' for more information.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h" // Defines ENABLE_NLS
+#endif
+
+#include <iostream>
+
+#include <glibmm/i18n.h> // Internationalization
+
+#include <gtkmm/filechooserdialog.h>
+
+#include "inkview-application.h"
+
+#include "inkscape.h" // Inkscape::Application
+#include "inkscape-version.h" // Inkscape version
+#include "include/glibmm_version.h"
+#include "inkgc/gc-core.h" // Garbage Collecting init
+#include "inkview-window.h"
+
+#ifdef ENABLE_NLS
+// Native Language Support - shouldn't this always be used?
+#include "helper/gettext.h" // gettext init
+#endif // ENABLE_NLS
+
+// This is a bit confusing as there are two ways to handle command line arguments and files
+// depending on if the Gio::APPLICATION_HANDLES_OPEN and/or Gio::APPLICATION_HANDLES_COMMAND_LINE
+// flags are set. If the open flag is set and the command line not, the all the remainng arguments
+// after calling on_handle_local_options() are assumed to be filenames.
+
+InkviewApplication::InkviewApplication()
+ : Gtk::Application("org.inkscape.Inkview",
+ Gio::APPLICATION_HANDLES_OPEN | // Use default file opening.
+ Gio::APPLICATION_NON_UNIQUE ) // Allows different instances of Inkview to run at same time.
+ , fullscreen(false)
+ , recursive(false)
+ , timer(0)
+ , scale(1.0)
+ , preload(false)
+{
+ // ==================== Initializations =====================
+ // Garbage Collector
+ Inkscape::GC::init();
+
+#ifdef ENABLE_NLS
+ // Native Language Support (shouldn't this always be used?).
+ Inkscape::initialize_gettext();
+#endif
+
+ Glib::set_application_name(N_("Inkview - An SVG File Viewer")); // After gettext() init.
+
+#if GLIBMM_CHECK_VERSION(2,56,0)
+ // Additional informational strings for --help output
+ // TODO: Claims to be translated automatically, but seems broken, so pass already translated strings
+ set_option_context_parameter_string(_("path1 [path2 [pathN]]"));
+ set_option_context_summary(_("Open one or more SVG files (or folders containing SVG files) for viewing."));
+#endif
+
+ // Will automatically handle character conversions.
+ // Note: OPTION_TYPE_FILENAME => std::string, OPTION_TYPE_STRING => Glib::ustring.
+
+ // clang-format off
+ add_main_option_entry(OPTION_TYPE_BOOL, "version", 'V', N_("Print Inkview version"), "");
+ add_main_option_entry(OPTION_TYPE_BOOL, "fullscreen", 'f', N_("Launch in fullscreen mode"), "");
+ add_main_option_entry(OPTION_TYPE_BOOL, "recursive", 'r', N_("Search folders recursively"), "");
+ add_main_option_entry(OPTION_TYPE_INT, "timer", 't', N_("Change image every NUMBER seconds"), N_("NUMBER"));
+ add_main_option_entry(OPTION_TYPE_DOUBLE, "scale", 's', N_("Scale image by factor NUMBER"), N_("NUMBER"));
+ add_main_option_entry(OPTION_TYPE_BOOL, "preload", 'p', N_("Preload files"), "");
+ // clang-format on
+
+ signal_handle_local_options().connect(sigc::mem_fun(*this, &InkviewApplication::on_handle_local_options));
+
+ // This is normally called for us... but after the "handle_local_options" signal is emitted. If
+ // we want to rely on actions for handling options, we need to call it here. This appears to
+ // have no unwanted side-effect. It will also trigger the call to on_startup().
+ register_application();
+}
+
+Glib::RefPtr<InkviewApplication> InkviewApplication::create()
+{
+ return Glib::RefPtr<InkviewApplication>(new InkviewApplication());
+}
+
+void
+InkviewApplication::on_startup()
+{
+ Gtk::Application::on_startup();
+
+ // Inkscape::Application should disappear!
+ Inkscape::Application::create(true);
+}
+
+
+// Open document window with default document. Either this or on_open() is called.
+void
+InkviewApplication::on_activate()
+{
+ // show file chooser dialog if no files/folders are given on the command line
+ // TODO: A FileChooserNative would be preferential, but offers no easy way to allow files AND folders
+ Glib::ustring title = _("Select Files or Folders to view");
+ Gtk::FileChooserDialog file_chooser(title + "…", Gtk::FILE_CHOOSER_ACTION_OPEN);
+ file_chooser.add_button(_("Select"), 42); // use custom response ID that is not intercepted by the file chooser
+ // (allows to pick files AND folders)
+ file_chooser.set_select_multiple();
+
+ Glib::RefPtr<Gtk::FileFilter> file_filter = Gtk::FileFilter::create();
+ file_filter->add_pattern("*.svg");
+ file_filter->set_name(_("Scalable Vector Graphics"));
+ file_chooser.add_filter(file_filter);
+
+ int res = file_chooser.run();
+ if (res == 42) {
+ auto files = file_chooser.get_files();
+ if (!files.empty()) {
+ on_open(files, "");
+ }
+ }
+}
+
+// Open document window for each file. Either this or on_activate() is called.
+void
+InkviewApplication::on_open(const Gio::Application::type_vec_files& files, const Glib::ustring& hint)
+{
+ try {
+ window = new InkviewWindow(files, fullscreen, recursive, timer, scale, preload);
+ } catch (const InkviewWindow::NoValidFilesException&) {
+ std::cerr << _("Error") << ": " << _("No (valid) files to open.") << std::endl;
+ exit(1);
+ }
+
+ window->show_all();
+ add_window(*window);
+}
+
+
+// ========================= Callbacks ==========================
+
+/*
+ * Handle command line options callback.
+ */
+int
+InkviewApplication::on_handle_local_options(const Glib::RefPtr<Glib::VariantDict>& options)
+{
+ if (!options) {
+ std::cerr << "InkviewApplication::on_handle_local_options: options is null!" << std::endl;
+ return -1; // Keep going
+ }
+
+ if (options->contains("version")) {
+ std::cout << "Inkscape " << Inkscape::version_string << std::endl;
+ return EXIT_SUCCESS;
+ }
+
+ if (options->contains("fullscreen")) {
+ fullscreen = true;
+ }
+
+ if (options->contains("recursive")) {
+ recursive = true;
+ }
+
+ if (options->contains("timer")) {
+ options->lookup_value("timer", timer);
+ }
+
+ if (options->contains("scale")) {
+ options->lookup_value("scale", scale);
+ }
+
+ if (options->contains("preload")) {
+ options->lookup_value("preload", preload);
+ }
+
+ return -1; // Keep going
+}
+
+/*
+ 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 :