testgtk.c

开发linux应用-用gtk+和gdk开发linux图形用户界面应用－－的实例

      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
    }

  if (!GTK_WIDGET_VISIBLE (window))
    gtk_widget_show_all (window);
  else
    gtk_widget_destroy (window);
}

/*
 * Saved Position
 */
gint upositionx = 0;
gint upositiony = 0;

static gint
uposition_configure (GtkWidget *window)
{
  GtkLabel *lx;
  GtkLabel *ly;
  gchar buffer[64];

  lx = gtk_object_get_data (GTK_OBJECT (window), "x");
  ly = gtk_object_get_data (GTK_OBJECT (window), "y");

  gdk_window_get_root_origin (window->window, &upositionx, &upositiony);
  sprintf (buffer, "%d", upositionx);
  gtk_label_set (lx, buffer);
  sprintf (buffer, "%d", upositiony);
  gtk_label_set (ly, buffer);

  return FALSE;
}

static void
create_saved_position (void)
{
  static GtkWidget *window = NULL;

  if (!window)
    {
      GtkWidget *hbox;
      GtkWidget *main_vbox;
      GtkWidget *vbox;
      GtkWidget *x_label;
      GtkWidget *y_label;
      GtkWidget *button;
      GtkWidget *label;
      GtkWidget *any;

      window = gtk_widget_new (GTK_TYPE_WINDOW,
			       "type", GTK_WINDOW_TOPLEVEL,
			       "signal::configure_event", uposition_configure, NULL,
			       "x", upositionx,
			       "y", upositiony,
			       "title", "Saved Position",
			       NULL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
			  GTK_SIGNAL_FUNC (gtk_widget_destroyed),
			  &window);

      main_vbox = gtk_vbox_new (FALSE, 5);
      gtk_container_border_width (GTK_CONTAINER (main_vbox), 0);
      gtk_container_add (GTK_CONTAINER (window), main_vbox);

      vbox =
	gtk_widget_new (gtk_vbox_get_type (),
			"GtkBox::homogeneous", FALSE,
			"GtkBox::spacing", 5,
			"GtkContainer::border_width", 10,
			"GtkWidget::parent", main_vbox,
			"GtkWidget::visible", TRUE,
			NULL);

      hbox = gtk_hbox_new (FALSE, 0);
      gtk_container_border_width (GTK_CONTAINER (hbox), 5);
      gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0);

      label = gtk_label_new ("X Origin : ");
      gtk_misc_set_alignment (GTK_MISC (label), 0, 0.5);
      gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);

      x_label = gtk_label_new ("");
      gtk_box_pack_start (GTK_BOX (hbox), x_label, TRUE, TRUE, 0);
      gtk_object_set_data (GTK_OBJECT (window), "x", x_label);

      hbox = gtk_hbox_new (FALSE, 0);
      gtk_container_border_width (GTK_CONTAINER (hbox), 5);
      gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0);

      label = gtk_label_new ("Y Origin : ");
      gtk_misc_set_alignment (GTK_MISC (label), 0, 0.5);
      gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, TRUE, 0);

      y_label = gtk_label_new ("");
      gtk_box_pack_start (GTK_BOX (hbox), y_label, TRUE, TRUE, 0);
      gtk_object_set_data (GTK_OBJECT (window), "y", y_label);

      any =
	gtk_widget_new (gtk_hseparator_get_type (),
			"GtkWidget::visible", TRUE,
			NULL);
      gtk_box_pack_start (GTK_BOX (main_vbox), any, FALSE, TRUE, 0);

      hbox = gtk_hbox_new (FALSE, 0);
      gtk_container_border_width (GTK_CONTAINER (hbox), 10);
      gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("Close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
				 GTK_SIGNAL_FUNC (gtk_widget_destroy),
				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 5);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
      
      gtk_widget_show_all (window);
    }
  else
    gtk_widget_destroy (window);
}

/*
 * GtkPixmap
 */

static void
create_pixmap (void)
{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *box3;
  GtkWidget *button;
  GtkWidget *label;
  GtkWidget *separator;
  GtkWidget *pixmapwid;
  GdkPixmap *pixmap;
  GdkBitmap *mask;

  if (!window)
    {
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
                          GTK_SIGNAL_FUNC(gtk_widget_destroyed),
                          &window);

      gtk_window_set_title (GTK_WINDOW (window), "GtkPixmap");
      gtk_container_border_width (GTK_CONTAINER (window), 0);
      gtk_widget_realize(window);

      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      box2 = gtk_vbox_new (FALSE, 10);
      gtk_container_border_width (GTK_CONTAINER (box2), 10);
      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      button = gtk_button_new ();
      gtk_box_pack_start (GTK_BOX (box2), button, FALSE, FALSE, 0);

      pixmap = gdk_pixmap_create_from_xpm (window->window, &mask, NULL,
					   "test.xpm");
      pixmapwid = gtk_pixmap_new (pixmap, mask);
      gdk_pixmap_unref (pixmap);
      gdk_pixmap_unref (mask);

      label = gtk_label_new ("Pixmap\ntest");
      box3 = gtk_hbox_new (FALSE, 0);
      gtk_container_border_width (GTK_CONTAINER (box3), 2);
      gtk_container_add (GTK_CONTAINER (box3), pixmapwid);
      gtk_container_add (GTK_CONTAINER (box3), label);
      gtk_container_add (GTK_CONTAINER (button), box3);

      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
      gtk_container_border_width (GTK_CONTAINER (box2), 10);
      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
                                 GTK_SIGNAL_FUNC(gtk_widget_destroy),
                                 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);
    }

  if (!GTK_WIDGET_VISIBLE (window))
    gtk_widget_show_all (window);
  else
    gtk_widget_destroy (window);
}

static void
tips_query_widget_entered (GtkTipsQuery   *tips_query,
			   GtkWidget      *widget,
			   const gchar    *tip_text,
			   const gchar    *tip_private,
			   GtkWidget	  *toggle)
{
  if (GTK_TOGGLE_BUTTON (toggle)->active)
    {
      gtk_label_set (GTK_LABEL (tips_query), tip_text ? "There is a Tip!" : "There is no Tip!");
      /* don't let GtkTipsQuery reset it's label */
      gtk_signal_emit_stop_by_name (GTK_OBJECT (tips_query), "widget_entered");
    }
}

static gint
tips_query_widget_selected (GtkWidget      *tips_query,
			    GtkWidget      *widget,
			    const gchar    *tip_text,
			    const gchar    *tip_private,
			    GdkEventButton *event,
			    gpointer        func_data)
{
  if (widget)
    g_print ("Help \"%s\" requested for <%s>\n",
	     tip_private ? tip_private : "None",
	     gtk_type_name (GTK_OBJECT_TYPE (widget)));
  return TRUE;
}

static void
create_tooltips (void)
{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *box3;
  GtkWidget *button;
  GtkWidget *toggle;
  GtkWidget *frame;
  GtkWidget *tips_query;
  GtkWidget *separator;
  GtkTooltips *tooltips;

  if (!window)
    {
      window =
	gtk_widget_new (gtk_window_get_type (),
			"GtkWindow::type", GTK_WINDOW_TOPLEVEL,
			"GtkContainer::border_width", 0,
			"GtkWindow::title", "Tooltips",
			"GtkWindow::allow_shrink", TRUE,
			"GtkWindow::allow_grow", FALSE,
			"GtkWindow::auto_shrink", TRUE,
			"GtkWidget::width", 200,
			NULL);

      gtk_signal_connect (GTK_OBJECT (window), "destroy",
                          GTK_SIGNAL_FUNC (destroy_tooltips),
                          &window);

      tooltips=gtk_tooltips_new();
      gtk_object_set_data (GTK_OBJECT (window), "tooltips", tooltips);
      
      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);

      box2 = gtk_vbox_new (FALSE, 10);
      gtk_container_border_width (GTK_CONTAINER (box2), 10);
      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      button = gtk_toggle_button_new_with_label ("button1");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      gtk_tooltips_set_tip (tooltips,button,"This is button 1", "ContextHelp/buttons/1");

      button = gtk_toggle_button_new_with_label ("button2");
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);

      gtk_tooltips_set_tip (tooltips,
			    button,
			    "This is button 2. This is also a really long tooltip which probably won't fit on a single line and will therefore need to be wrapped. Hopefully the wrapping will work correctly.",
			    "ContextHelp/buttons/2_long");

      toggle = gtk_toggle_button_new_with_label ("Override TipsQuery Label");
      gtk_box_pack_start (GTK_BOX (box2), toggle, TRUE, TRUE, 0);

      gtk_tooltips_set_tip (tooltips, toggle, "Toggle TipsQuery view.", "Hi msw! ;)");

      box3 =
	gtk_widget_new (gtk_vbox_get_type (),
			"GtkBox::homogeneous", FALSE,
			"GtkBox::spacing", 5,
			"GtkContainer::border_width", 5,
			"GtkWidget::visible", TRUE,
			NULL);

      tips_query = gtk_tips_query_new ();

      button =
	gtk_widget_new (gtk_button_get_type (),
			"GtkButton::label", "[?]",
			"GtkWidget::visible", TRUE,
			"GtkWidget::parent", box3,
			"GtkObject::object_signal::clicked", gtk_tips_query_start_query, tips_query,
			NULL);
      gtk_box_set_child_packing (GTK_BOX (box3), button, FALSE, FALSE, 0, GTK_PACK_START);
      gtk_tooltips_set_tip (tooltips,
			    button,
			    "Start the Tooltips Inspector",
			    "ContextHelp/buttons/?");
      
      
      gtk_widget_set (tips_query,
		      "GtkWidget::visible", TRUE,
		      "GtkWidget::parent", box3,
		      "GtkTipsQuery::caller", button,
		      "GtkObject::signal::widget_entered", tips_query_widget_entered, toggle,
		      "GtkObject::signal::widget_selected", tips_query_widget_selected, NULL,
		      NULL);
      
      frame =
	gtk_widget_new (gtk_frame_get_type (),
			"GtkFrame::label", "ToolTips Inspector",
			"GtkFrame::label_xalign", (double) 0.5,
			"GtkContainer::border_width", 0,
			"GtkWidget::visible", TRUE,
			"GtkWidget::parent", box2,
			"GtkContainer::child", box3,
			NULL);
      gtk_box_set_child_packing (GTK_BOX (box2), frame, TRUE, TRUE, 10, GTK_PACK_START);

      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);

      box2 = gtk_vbox_new (FALSE, 10);
      gtk_container_border_width (GTK_CONTAINER (box2), 10);
      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
                                 GTK_SIGNAL_FUNC(gtk_widget_destroy),
                                 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);

      gtk_tooltips_set_tip (tooltips, button, "Push this button to close window", "ContextHelp/buttons/Close");
    }

  if (!GTK_WIDGET_VISIBLE (window))
    gtk_widget_show_all (window);
  else
    gtk_widget_destroy (window);
}

/*
 * Menu demo
 */

static GtkWidget*
create_menu (gint depth, gboolean tearoff)
{
  GtkWidget *menu;
  GtkWidget *menuitem;
  GSList *group;
  char buf[32];
  int i, j;

  if (depth < 1)
    return NULL;

  menu = gtk_menu_new ();
  group = NULL;

  if (tearoff)
    {
      menuitem = gtk_tearoff_menu_item_new ();
      gtk_menu_append (GTK_MENU (menu), menuitem);
      gtk_widget_show (menuitem);
    }

  for (i = 0, j = 1; i < 5; i++, j++)
    {
      sprintf (buf, "item %2d - %d", depth, j);
      menuitem = gtk_radio_menu_item_new_with_label (group, buf);
      group = gtk_radio_menu_item_group (GTK_RADIO_MENU_ITEM (menuitem));
      if (depth % 2)
	gtk_check_menu_item_set_show_toggle (GTK_CHECK_MENU_ITEM (menuitem), TRUE);
      gtk_menu_append (GTK_MENU (menu), menuitem);
      gtk_widget_show (menuitem);
      if (i == 3)
	gtk_widget_set_sensitive (menuitem, FALSE);

      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (depth - 1, TRUE));
    }

  return menu;
}

static void
create_menus (void)
{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *button;
  GtkWidget *optionmenu;
  GtkWidget *separator;
  
  if (!window)
    {
      GtkWidget *menubar;
      GtkWidget *menu;
      GtkWidget *menuitem;
      GtkAccelGroup *accel_group;
      
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      
      gtk_signal_connect (GTK_OBJECT (window), "destroy",