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Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/JAVA/Openjdk/src/jdk.localedata/share/legal/   (Sun/Oracle ©)  Datei vom 13.11.2022 mit Größe 1 kB image not shown  

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svg_widget.c


products/Sources/formale Sprachen/C/Gnome/demos/gtk-demo/svg_widget.c

/* SVG * * This demo uses a GtkSvgWidget to display a * scalable, animated, interactive SVG image. * * Hover over the faces of the cube to see * tooltips, click on them to activate links. * * Keyboard navigation with Tab and Enter works * as well. */ #include static void open_response_cb (GObject *source, GAsyncResult *result, void *data) { GtkFileDialog *dialog = GTK_FILE_DIALOG (source); GtkWidget *window = data; GFile *file; file = gtk_file_dialog_open_finish (dialog, result, NULL); if (file) { GtkSvgWidget *widget; GBytes *bytes; widget = GTK_SVG_WIDGET (gtk_window_get_child (GTK_WINDOW (window))); bytes = g_file_load_bytes (file, NULL, NULL, NULL); gtk_svg_widget_load_from_bytes (widget, bytes); g_bytes_unref (bytes); g_object_unref (file); } } static void show_file_open (GtkWidget *button, GtkWidget *window) { GtkFileFilter *filter; GtkFileDialog *dialog; GListStore *filters; dialog = gtk_file_dialog_new (); gtk_file_dialog_set_title (dialog, "Open SVG"); filter = gtk_file_filter_new (); gtk_file_filter_add_mime_type (filter, "image/svg+xml"); gtk_file_filter_add_mime_type (filter, "image/x-gtk-path-animation"); gtk_file_filter_add_pattern (filter, "*.gpa"); filters = g_list_store_new (GTK_TYPE_FILE_FILTER); g_list_store_append (filters, filter); g_object_unref (filter); gtk_file_dialog_set_filters (dialog, G_LIST_MODEL (filters)); g_object_unref (filters); gtk_file_dialog_open (dialog, GTK_WINDOW (gtk_widget_get_root (button)), NULL, open_response_cb, window); } static void launched_cb (GObject *source, GAsyncResult *result, gpointer data) { GtkUriLauncher *launcher = GTK_URI_LAUNCHER (source); GtkWindow *window = data; GError *error = NULL; if (!gtk_uri_launcher_launch_finish (launcher, result, &error)) { if (g_error_matches (error, GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_FAILED)) { GtkAlertDialog *alert = gtk_alert_dialog_new ("Opening url failed"); gtk_alert_dialog_set_detail (alert, error->message); g_error_free (error); gtk_alert_dialog_show (alert, window); g_object_unref (alert); } } } static void activate_cb (GtkSvgWidget *widget, const char *id, const char *url, GtkWindow *window) { if (url && g_str_has_prefix (url, "http://")) { GtkUriLauncher *launcher = gtk_uri_launcher_new (url); gtk_uri_launcher_launch (launcher, window, NULL, launched_cb, window); g_object_unref (launcher); } } static GtkWidget *window; GtkWidget * do_svg_widget (GtkWidget *do_widget) { GtkWidget *header; GtkWidget *button; GtkWidget *widget; if (!window) { window = gtk_window_new (); header = gtk_header_bar_new (); gtk_window_set_titlebar (GTK_WINDOW (window), header); gtk_window_set_default_size (GTK_WINDOW (window), 330, 330); gtk_window_set_title (GTK_WINDOW (window), "SVG"); g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window); button = gtk_button_new_with_mnemonic ("_Open"); gtk_header_bar_pack_start (GTK_HEADER_BAR (header), button); g_signal_connect (button, "clicked", G_CALLBACK (show_file_open), window); widget = GTK_WIDGET (gtk_svg_widget_new ()); gtk_window_set_child (GTK_WINDOW (window), widget); g_object_set (widget, "resource", "/svg_widget/gtk-logo-interactive.svg", NULL); gtk_widget_set_has_tooltip (widget, TRUE); g_signal_connect (widget, "activate", G_CALLBACK (activate_cb), window); } if (!gtk_widget_get_visible (window)) gtk_window_present (GTK_WINDOW (window)); else gtk_window_destroy (GTK_WINDOW (window)); return window; }

                                                                                                                                                                                                                                                                                                                                                                                                     

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