mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-14 04:31:09 +00:00
487 lines
17 KiB
C
487 lines
17 KiB
C
/* Application window
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*
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* Demonstrates a typical application window with menubar, toolbar, statusbar.
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*
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* This example uses GtkUIManager and GtkActionGroup.
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*/
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#include "config.h"
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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static GtkWidget *window = NULL;
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static GtkWidget *infobar = NULL;
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static GtkWidget *messagelabel = NULL;
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static void
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activate_action (GtkAction *action)
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{
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const gchar *name = gtk_action_get_name (action);
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const gchar *typename = G_OBJECT_TYPE_NAME (action);
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GtkWidget *dialog;
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if (g_str_equal (name, "DarkTheme"))
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{
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gboolean value = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
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GtkSettings *settings = gtk_settings_get_default ();
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g_object_set (G_OBJECT (settings),
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"gtk-application-prefer-dark-theme", value,
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NULL);
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return;
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}
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if (g_str_equal (name, "HideTitlebar"))
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{
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gboolean value = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
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gtk_window_set_hide_titlebar_when_maximized (GTK_WINDOW (window), value);
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return;
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}
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dialog = gtk_message_dialog_new (GTK_WINDOW (window),
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GTK_DIALOG_DESTROY_WITH_PARENT,
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GTK_MESSAGE_INFO,
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GTK_BUTTONS_CLOSE,
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"You activated action: \"%s\" of type \"%s\"",
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name, typename);
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/* Close dialog on user response */
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g_signal_connect (dialog,
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"response",
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G_CALLBACK (gtk_widget_destroy),
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NULL);
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gtk_widget_show (dialog);
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}
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static void
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activate_radio_action (GtkAction *action, GtkRadioAction *current)
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{
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const gchar *name = gtk_action_get_name (GTK_ACTION (current));
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const gchar *typename = G_OBJECT_TYPE_NAME (GTK_ACTION (current));
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gboolean active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (current));
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gint value = gtk_radio_action_get_current_value (GTK_RADIO_ACTION (current));
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if (active)
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{
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gchar *text;
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text = g_strdup_printf ("You activated radio action: \"%s\" of type \"%s\".\n"
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"Current value: %d",
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name, typename, value);
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gtk_label_set_text (GTK_LABEL (messagelabel), text);
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gtk_info_bar_set_message_type (GTK_INFO_BAR (infobar), (GtkMessageType)value);
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gtk_widget_show (infobar);
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g_free (text);
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}
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}
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static void
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about_cb (GtkAction *action,
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GtkWidget *window)
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{
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GdkPixbuf *pixbuf;
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const gchar *authors[] = {
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"Peter Mattis",
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"Spencer Kimball",
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"Josh MacDonald",
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"and many more...",
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NULL
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};
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const gchar *documentors[] = {
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"Owen Taylor",
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"Tony Gale",
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"Matthias Clasen <mclasen@redhat.com>",
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"and many more...",
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NULL
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};
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pixbuf = gdk_pixbuf_new_from_resource ("/appwindow/gtk-logo-old.png", NULL);
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/* We asser the existence of the pixbuf as we load it from a custom resource. */
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g_assert (pixbuf);
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gtk_show_about_dialog (GTK_WINDOW (window),
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"program-name", "GTK+ Code Demos",
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"version", g_strdup_printf ("%s,\nRunning against GTK+ %d.%d.%d",
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PACKAGE_VERSION,
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gtk_get_major_version (),
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gtk_get_minor_version (),
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gtk_get_micro_version ()),
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"copyright", "(C) 1997-2009 The GTK+ Team",
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"license-type", GTK_LICENSE_LGPL_2_1,
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"website", "http://www.gtk.org",
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"comments", "Program to demonstrate GTK+ functions.",
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"authors", authors,
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"documenters", documentors,
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"logo", pixbuf,
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"title", "About GTK+ Code Demos",
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NULL);
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g_object_unref (pixbuf);
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}
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typedef struct
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{
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GtkAction action;
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} ToolMenuAction;
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typedef struct
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{
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GtkActionClass parent_class;
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} ToolMenuActionClass;
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G_DEFINE_TYPE(ToolMenuAction, tool_menu_action, GTK_TYPE_ACTION)
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static void
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tool_menu_action_class_init (ToolMenuActionClass *class)
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{
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GTK_ACTION_CLASS (class)->toolbar_item_type = GTK_TYPE_MENU_TOOL_BUTTON;
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}
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static void
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tool_menu_action_init (ToolMenuAction *action)
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{
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}
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static GtkActionEntry entries[] = {
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{ "FileMenu", NULL, "_File" }, /* name, stock id, label */
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{ "OpenMenu", NULL, "_Open" }, /* name, stock id, label */
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{ "PreferencesMenu", NULL, "_Preferences" }, /* name, stock id, label */
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{ "ColorMenu", NULL, "_Color" }, /* name, stock id, label */
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{ "ShapeMenu", NULL, "_Shape" }, /* name, stock id, label */
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{ "HelpMenu", NULL, "_Help" }, /* name, stock id, label */
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{ "New", GTK_STOCK_NEW, /* name, stock id */
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"_New", "<control>N", /* label, accelerator */
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"Create a new file", /* tooltip */
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G_CALLBACK (activate_action) },
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{ "File1", NULL, /* name, stock id */
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"File1", NULL, /* label, accelerator */
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"Open first file", /* tooltip */
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G_CALLBACK (activate_action) },
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{ "Save", GTK_STOCK_SAVE, /* name, stock id */
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"_Save","<control>S", /* label, accelerator */
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"Save current file", /* tooltip */
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G_CALLBACK (activate_action) },
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{ "SaveAs", GTK_STOCK_SAVE, /* name, stock id */
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"Save _As...", NULL, /* label, accelerator */
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"Save to a file", /* tooltip */
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G_CALLBACK (activate_action) },
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{ "Quit", GTK_STOCK_QUIT, /* name, stock id */
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"_Quit", "<control>Q", /* label, accelerator */
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"Quit", /* tooltip */
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G_CALLBACK (activate_action) },
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{ "About", NULL, /* name, stock id */
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"_About", "<control>A", /* label, accelerator */
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"About", /* tooltip */
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G_CALLBACK (about_cb) },
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};
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static guint n_entries = G_N_ELEMENTS (entries);
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static GtkToggleActionEntry toggle_entries[] = {
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{ "Bold", GTK_STOCK_BOLD, /* name, stock id */
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"_Bold", "<control>B", /* label, accelerator */
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"Bold", /* tooltip */
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G_CALLBACK (activate_action),
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TRUE }, /* is_active */
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{ "DarkTheme", NULL, /* name, stock id */
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"_Prefer Dark Theme", NULL, /* label, accelerator */
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"Prefer Dark Theme", /* tooltip */
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G_CALLBACK (activate_action),
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FALSE }, /* is_active */
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{ "HideTitlebar", NULL,
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"_Hide Titlebar when maximized", NULL,
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"Hide Titlebar when maximized",
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G_CALLBACK (activate_action),
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FALSE }
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};
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static guint n_toggle_entries = G_N_ELEMENTS (toggle_entries);
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enum {
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COLOR_RED,
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COLOR_GREEN,
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COLOR_BLUE
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};
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static GtkRadioActionEntry color_entries[] = {
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{ "Red", NULL, /* name, stock id */
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"_Red", "<control>R", /* label, accelerator */
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"Blood", COLOR_RED }, /* tooltip, value */
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{ "Green", NULL, /* name, stock id */
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"_Green", "<control>G", /* label, accelerator */
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"Grass", COLOR_GREEN }, /* tooltip, value */
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{ "Blue", NULL, /* name, stock id */
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"_Blue", "<control>B", /* label, accelerator */
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"Sky", COLOR_BLUE }, /* tooltip, value */
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};
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static guint n_color_entries = G_N_ELEMENTS (color_entries);
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enum {
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SHAPE_SQUARE,
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SHAPE_RECTANGLE,
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SHAPE_OVAL
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};
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static GtkRadioActionEntry shape_entries[] = {
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{ "Square", NULL, /* name, stock id */
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"_Square", "<control>S", /* label, accelerator */
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"Square", SHAPE_SQUARE }, /* tooltip, value */
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{ "Rectangle", NULL, /* name, stock id */
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"_Rectangle", "<control>R", /* label, accelerator */
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"Rectangle", SHAPE_RECTANGLE }, /* tooltip, value */
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{ "Oval", NULL, /* name, stock id */
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"_Oval", "<control>O", /* label, accelerator */
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"Egg", SHAPE_OVAL }, /* tooltip, value */
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};
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static guint n_shape_entries = G_N_ELEMENTS (shape_entries);
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static const gchar *ui_info =
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"<ui>"
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" <menubar name='MenuBar'>"
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" <menu action='FileMenu'>"
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" <menuitem action='New'/>"
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" <menuitem action='Open'/>"
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" <menuitem action='Save'/>"
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" <menuitem action='SaveAs'/>"
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" <separator/>"
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" <menuitem action='Quit'/>"
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" </menu>"
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" <menu action='PreferencesMenu'>"
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" <menuitem action='DarkTheme'/>"
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" <menuitem action='HideTitlebar'/>"
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" <menu action='ColorMenu'>"
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" <menuitem action='Red'/>"
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" <menuitem action='Green'/>"
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" <menuitem action='Blue'/>"
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" </menu>"
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" <menu action='ShapeMenu'>"
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" <menuitem action='Square'/>"
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" <menuitem action='Rectangle'/>"
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" <menuitem action='Oval'/>"
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" </menu>"
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" <menuitem action='Bold'/>"
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" </menu>"
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" <menu action='HelpMenu'>"
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" <menuitem action='About'/>"
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" </menu>"
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" </menubar>"
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" <toolbar name='ToolBar'>"
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" <toolitem action='Open'>"
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" <menu action='OpenMenu'>"
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" <menuitem action='File1'/>"
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" </menu>"
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" </toolitem>"
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" <toolitem action='Quit'/>"
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" </toolbar>"
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"</ui>";
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static void
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update_statusbar (GtkTextBuffer *buffer,
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GtkStatusbar *statusbar)
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{
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gchar *msg;
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gint row, col;
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gint count;
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GtkTextIter iter;
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gtk_statusbar_pop (statusbar, 0); /* clear any previous message,
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* underflow is allowed
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*/
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count = gtk_text_buffer_get_char_count (buffer);
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gtk_text_buffer_get_iter_at_mark (buffer,
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&iter,
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gtk_text_buffer_get_insert (buffer));
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row = gtk_text_iter_get_line (&iter);
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col = gtk_text_iter_get_line_offset (&iter);
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msg = g_strdup_printf ("Cursor at row %d column %d - %d chars in document",
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row, col, count);
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gtk_statusbar_push (statusbar, 0, msg);
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g_free (msg);
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}
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static void
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mark_set_callback (GtkTextBuffer *buffer,
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const GtkTextIter *new_location,
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GtkTextMark *mark,
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gpointer data)
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{
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update_statusbar (buffer, GTK_STATUSBAR (data));
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}
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GtkWidget *
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do_appwindow (GtkWidget *do_widget)
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{
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if (!window)
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{
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GtkWidget *table;
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GtkWidget *statusbar;
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GtkWidget *contents;
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GtkWidget *sw;
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GtkWidget *bar;
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GtkTextBuffer *buffer;
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GtkActionGroup *action_group;
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GtkAction *open_action;
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GtkUIManager *merge;
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GError *error = NULL;
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/* Create the toplevel window
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*/
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_screen (GTK_WINDOW (window),
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gtk_widget_get_screen (do_widget));
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gtk_window_set_title (GTK_WINDOW (window), "Application Window");
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gtk_window_set_icon_name (GTK_WINDOW (window), "document-open");
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/* NULL window variable when window is closed */
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g_signal_connect (window, "destroy",
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G_CALLBACK (gtk_widget_destroyed),
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&window);
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table = gtk_grid_new ();
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gtk_container_add (GTK_CONTAINER (window), table);
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/* Create the menubar and toolbar
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*/
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action_group = gtk_action_group_new ("AppWindowActions");
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open_action = g_object_new (tool_menu_action_get_type (),
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"name", "Open",
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"label", "_Open",
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"tooltip", "Open a file",
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"stock-id", GTK_STOCK_OPEN,
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NULL);
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gtk_action_group_add_action (action_group, open_action);
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g_object_unref (open_action);
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gtk_action_group_add_actions (action_group,
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entries, n_entries,
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window);
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gtk_action_group_add_toggle_actions (action_group,
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toggle_entries, n_toggle_entries,
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NULL);
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gtk_action_group_add_radio_actions (action_group,
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color_entries, n_color_entries,
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COLOR_RED,
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G_CALLBACK (activate_radio_action),
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NULL);
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gtk_action_group_add_radio_actions (action_group,
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shape_entries, n_shape_entries,
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SHAPE_SQUARE,
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G_CALLBACK (activate_radio_action),
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NULL);
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merge = gtk_ui_manager_new ();
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g_object_set_data_full (G_OBJECT (window), "ui-manager", merge,
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g_object_unref);
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gtk_ui_manager_insert_action_group (merge, action_group, 0);
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gtk_window_add_accel_group (GTK_WINDOW (window),
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gtk_ui_manager_get_accel_group (merge));
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if (!gtk_ui_manager_add_ui_from_string (merge, ui_info, -1, &error))
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{
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g_message ("building menus failed: %s", error->message);
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g_error_free (error);
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}
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bar = gtk_ui_manager_get_widget (merge, "/MenuBar");
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gtk_widget_show (bar);
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gtk_widget_set_halign (bar, GTK_ALIGN_FILL);
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gtk_grid_attach (GTK_GRID (table), bar, 0, 0, 1, 1);
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bar = gtk_ui_manager_get_widget (merge, "/ToolBar");
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gtk_widget_show (bar);
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gtk_widget_set_halign (bar, GTK_ALIGN_FILL);
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gtk_grid_attach (GTK_GRID (table), bar, 0, 1, 1, 1);
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/* Create document
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*/
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infobar = gtk_info_bar_new ();
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gtk_widget_set_no_show_all (infobar, TRUE);
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messagelabel = gtk_label_new ("");
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gtk_widget_show (messagelabel);
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gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (infobar))),
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messagelabel,
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TRUE, TRUE, 0);
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gtk_info_bar_add_button (GTK_INFO_BAR (infobar),
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_("OK"), GTK_RESPONSE_OK);
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g_signal_connect (infobar, "response",
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G_CALLBACK (gtk_widget_hide), NULL);
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gtk_widget_set_halign (infobar, GTK_ALIGN_FILL);
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gtk_grid_attach (GTK_GRID (table), infobar, 0, 2, 1, 1);
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sw = gtk_scrolled_window_new (NULL, NULL);
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gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
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GTK_POLICY_AUTOMATIC,
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GTK_POLICY_AUTOMATIC);
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gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
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GTK_SHADOW_IN);
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gtk_widget_set_halign (sw, GTK_ALIGN_FILL);
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gtk_widget_set_valign (sw, GTK_ALIGN_FILL);
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gtk_widget_set_hexpand (sw, TRUE);
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gtk_widget_set_vexpand (sw, TRUE);
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gtk_grid_attach (GTK_GRID (table), sw, 0, 3, 1, 1);
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gtk_window_set_default_size (GTK_WINDOW (window),
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200, 200);
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contents = gtk_text_view_new ();
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gtk_widget_grab_focus (contents);
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gtk_container_add (GTK_CONTAINER (sw),
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contents);
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/* Create statusbar */
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statusbar = gtk_statusbar_new ();
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gtk_widget_set_halign (sw, GTK_ALIGN_FILL);
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gtk_grid_attach (GTK_GRID (table), statusbar, 0, 4, 1, 1);
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/* Show text widget info in the statusbar */
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (contents));
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g_signal_connect_object (buffer,
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"changed",
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G_CALLBACK (update_statusbar),
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statusbar,
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0);
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g_signal_connect_object (buffer,
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"mark_set", /* cursor moved */
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G_CALLBACK (mark_set_callback),
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statusbar,
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0);
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update_statusbar (buffer, GTK_STATUSBAR (statusbar));
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}
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if (!gtk_widget_get_visible (window))
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{
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gtk_widget_show_all (window);
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}
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else
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{
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gtk_widget_destroy (window);
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window = NULL;
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infobar = NULL;
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messagelabel = NULL;
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}
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return window;
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}
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