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

  /* create separator */
  separator = gtk_hseparator_new();
  gtk_box_pack_start(GTK_BOX(box1), separator, FALSE, FALSE, 0);
  gtk_widget_show(separator);

  /* create button box */
  box2 = gtk_vbox_new(FALSE, 0);
  gtk_box_pack_start(GTK_BOX(box1), box2, FALSE, FALSE, 0);
  gtk_container_border_width(GTK_CONTAINER(box2), 5);
  gtk_widget_show(box2);

  button = gtk_button_new_with_label("Close");
  gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
  gtk_signal_connect_object(GTK_OBJECT (button), "clicked",
			    (GtkSignalFunc) gtk_widget_destroy, 
			    GTK_OBJECT(window));
  gtk_widget_show(button);

  gtk_widget_show(window);
}

static void
cb_create_tree(GtkWidget* w)
{
  guint selection_mode = GTK_SELECTION_SINGLE;
  guint view_line;
  guint draw_line;
  guint no_root_item;
  guint nb_item;
  guint recursion_level;

  /* get selection mode choice */
  if(GTK_TOGGLE_BUTTON(sTreeSampleSelection.single_button)->active)
    selection_mode = GTK_SELECTION_SINGLE;
  else
    if(GTK_TOGGLE_BUTTON(sTreeSampleSelection.browse_button)->active)
      selection_mode = GTK_SELECTION_BROWSE;
    else
      selection_mode = GTK_SELECTION_MULTIPLE;

  /* get options choice */
  draw_line = GTK_TOGGLE_BUTTON(sTreeSampleSelection.draw_line_button)->active;
  view_line = GTK_TOGGLE_BUTTON(sTreeSampleSelection.view_line_button)->active;
  no_root_item = GTK_TOGGLE_BUTTON(sTreeSampleSelection.no_root_item_button)->active;
    
  /* get levels */
  nb_item = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(sTreeSampleSelection.nb_item_spinner));
  recursion_level = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(sTreeSampleSelection.recursion_spinner));

  if (pow (nb_item, recursion_level) > 10000)
    {
      g_print ("%g total items? That will take a very long time. Try less\n",
	       pow (nb_item, recursion_level));
      return;
    }

  create_tree_sample(selection_mode, draw_line, view_line, no_root_item, nb_item, recursion_level);
}

void 
create_tree_mode_window(void)
{
  static GtkWidget* window;
  GtkWidget* box1;
  GtkWidget* box2;
  GtkWidget* box3;
  GtkWidget* box4;
  GtkWidget* box5;
  GtkWidget* button;
  GtkWidget* frame;
  GtkWidget* separator;
  GtkWidget* label;
  GtkWidget* spinner;
  GtkAdjustment *adj;

  if (!window)
    {
      /* create toplevel window  */
      window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
      gtk_window_set_title(GTK_WINDOW(window), "Set Tree Parameters");
      gtk_signal_connect (GTK_OBJECT (window), "destroy",
			  GTK_SIGNAL_FUNC(gtk_widget_destroyed),
			  &window);
      box1 = gtk_vbox_new(FALSE, 0);
      gtk_container_add(GTK_CONTAINER(window), box1);

      /* create upper box - selection box */
      box2 = gtk_vbox_new(FALSE, 5);
      gtk_box_pack_start(GTK_BOX(box1), box2, TRUE, TRUE, 0);
      gtk_container_border_width(GTK_CONTAINER(box2), 5);

      box3 = gtk_hbox_new(FALSE, 5);
      gtk_box_pack_start(GTK_BOX(box2), box3, TRUE, TRUE, 0);

      /* create selection mode frame */
      frame = gtk_frame_new("Selection Mode");
      gtk_box_pack_start(GTK_BOX(box3), frame, TRUE, TRUE, 0);

      box4 = gtk_vbox_new(FALSE, 0);
      gtk_container_add(GTK_CONTAINER(frame), box4);
      gtk_container_border_width(GTK_CONTAINER(box4), 5);

      /* create radio button */  
      button = gtk_radio_button_new_with_label(NULL, "SINGLE");
      gtk_box_pack_start(GTK_BOX(box4), button, TRUE, TRUE, 0);
      sTreeSampleSelection.single_button = button;

      button = gtk_radio_button_new_with_label(gtk_radio_button_group (GTK_RADIO_BUTTON (button)),
					       "BROWSE");
      gtk_box_pack_start(GTK_BOX(box4), button, TRUE, TRUE, 0);
      sTreeSampleSelection.browse_button = button;

      button = gtk_radio_button_new_with_label(gtk_radio_button_group (GTK_RADIO_BUTTON (button)),
					       "MULTIPLE");
      gtk_box_pack_start(GTK_BOX(box4), button, TRUE, TRUE, 0);
      sTreeSampleSelection.multiple_button = button;

      sTreeSampleSelection.selection_mode_group = gtk_radio_button_group (GTK_RADIO_BUTTON (button));

      /* create option mode frame */
      frame = gtk_frame_new("Options");
      gtk_box_pack_start(GTK_BOX(box3), frame, TRUE, TRUE, 0);

      box4 = gtk_vbox_new(FALSE, 0);
      gtk_container_add(GTK_CONTAINER(frame), box4);
      gtk_container_border_width(GTK_CONTAINER(box4), 5);

      /* create check button */
      button = gtk_check_button_new_with_label("Draw line");
      gtk_box_pack_start(GTK_BOX(box4), button, TRUE, TRUE, 0);
      gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(button), TRUE);
      sTreeSampleSelection.draw_line_button = button;
  
      button = gtk_check_button_new_with_label("View Line mode");
      gtk_box_pack_start(GTK_BOX(box4), button, TRUE, TRUE, 0);
      gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(button), TRUE);
      sTreeSampleSelection.view_line_button = button;
  
      button = gtk_check_button_new_with_label("Without Root item");
      gtk_box_pack_start(GTK_BOX(box4), button, TRUE, TRUE, 0);
      sTreeSampleSelection.no_root_item_button = button;

      /* create recursion parameter */
      frame = gtk_frame_new("Size Parameters");
      gtk_box_pack_start(GTK_BOX(box2), frame, TRUE, TRUE, 0);

      box4 = gtk_hbox_new(FALSE, 5);
      gtk_container_add(GTK_CONTAINER(frame), box4);
      gtk_container_border_width(GTK_CONTAINER(box4), 5);

      /* create number of item spin button */
      box5 = gtk_hbox_new(FALSE, 5);
      gtk_box_pack_start(GTK_BOX(box4), box5, FALSE, FALSE, 0);

      label = gtk_label_new("Number of items : ");
      gtk_misc_set_alignment (GTK_MISC (label), 0, 0.5);
      gtk_box_pack_start (GTK_BOX (box5), label, FALSE, TRUE, 0);

      adj = (GtkAdjustment *) gtk_adjustment_new ((gfloat)DEFAULT_NUMBER_OF_ITEM, 1.0, 255.0, 1.0,
						  5.0, 0.0);
      spinner = gtk_spin_button_new (adj, 0, 0);
      gtk_box_pack_start (GTK_BOX (box5), spinner, FALSE, TRUE, 0);
      sTreeSampleSelection.nb_item_spinner = spinner;
  
      /* create recursion level spin button */
      box5 = gtk_hbox_new(FALSE, 5);
      gtk_box_pack_start(GTK_BOX(box4), box5, FALSE, FALSE, 0);

      label = gtk_label_new("Depth : ");
      gtk_misc_set_alignment (GTK_MISC (label), 0, 0.5);
      gtk_box_pack_start (GTK_BOX (box5), label, FALSE, TRUE, 0);

      adj = (GtkAdjustment *) gtk_adjustment_new ((gfloat)DEFAULT_RECURSION_LEVEL, 0.0, 255.0, 1.0,
						  5.0, 0.0);
      spinner = gtk_spin_button_new (adj, 0, 0);
      gtk_box_pack_start (GTK_BOX (box5), spinner, FALSE, TRUE, 0);
      sTreeSampleSelection.recursion_spinner = spinner;
  
      /* create horizontal separator */
      separator = gtk_hseparator_new();
      gtk_box_pack_start(GTK_BOX(box1), separator, FALSE, FALSE, 0);

      /* create bottom button box */
      box2 = gtk_hbox_new(TRUE, 10);
      gtk_box_pack_start(GTK_BOX(box1), box2, FALSE, FALSE, 0);
      gtk_container_border_width(GTK_CONTAINER(box2), 5);

      button = gtk_button_new_with_label("Create Tree");
      gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
      gtk_signal_connect(GTK_OBJECT (button), "clicked",
			 (GtkSignalFunc) cb_create_tree, NULL);

      button = gtk_button_new_with_label("Close");
      gtk_box_pack_start(GTK_BOX(box2), button, TRUE, TRUE, 0);
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
                                 GTK_SIGNAL_FUNC(gtk_widget_destroy),
                                 GTK_OBJECT (window));
    }
  if (!GTK_WIDGET_VISIBLE (window))
    gtk_widget_show_all (window);
  else
    gtk_widget_destroy (window);
}

/*
 * GtkHandleBox
 */

static void
handle_box_child_signal (GtkHandleBox *hb,
			 GtkWidget    *child,
			 const gchar  *action)
{
  printf ("%s: child <%s> %sed\n",
	  gtk_type_name (GTK_OBJECT_TYPE (hb)),
	  gtk_type_name (GTK_OBJECT_TYPE (child)),
	  action);
}

static void
create_handle_box (void)
{
  static GtkWidget* window = NULL;
  GtkWidget *handle_box;
  GtkWidget *handle_box2;
  GtkWidget *vbox;
  GtkWidget *hbox;
  GtkWidget *toolbar;
  GtkWidget *label;
  GtkWidget *separator;
	
  if (!window)
  {
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window),
			  "Handle Box Test");
    gtk_window_set_policy (GTK_WINDOW (window),
			   TRUE,
			   TRUE,
			   FALSE);
    
    gtk_signal_connect (GTK_OBJECT (window), "destroy",
			GTK_SIGNAL_FUNC(gtk_widget_destroyed),
			&window);
    
    gtk_container_border_width (GTK_CONTAINER (window), 20);

    vbox = gtk_vbox_new (FALSE, 0);
    gtk_container_add (GTK_CONTAINER (window), vbox);
    gtk_widget_show (vbox);

    label = gtk_label_new ("Above");
    gtk_container_add (GTK_CONTAINER (vbox), label);
    gtk_widget_show (label);

    separator = gtk_hseparator_new ();
    gtk_container_add (GTK_CONTAINER (vbox), separator);
    gtk_widget_show (separator);
    
    hbox = gtk_hbox_new (FALSE, 10);
    gtk_container_add (GTK_CONTAINER (vbox), hbox);
    gtk_widget_show (hbox);

    separator = gtk_hseparator_new ();
    gtk_container_add (GTK_CONTAINER (vbox), separator);
    gtk_widget_show (separator);

    label = gtk_label_new ("Below");
    gtk_container_add (GTK_CONTAINER (vbox), label);
    gtk_widget_show (label);

    handle_box = gtk_handle_box_new ();
    gtk_container_add (GTK_CONTAINER (hbox), handle_box);
    gtk_signal_connect (GTK_OBJECT (handle_box),
			"child_attached",
			GTK_SIGNAL_FUNC (handle_box_child_signal),
			"attached");
    gtk_signal_connect (GTK_OBJECT (handle_box),
			"child_detached",
			GTK_SIGNAL_FUNC (handle_box_child_signal),
			"detached");
    gtk_widget_show (handle_box);

    toolbar = make_toolbar (window);
    gtk_toolbar_set_button_relief (GTK_TOOLBAR (toolbar), GTK_RELIEF_NORMAL);
    gtk_container_add (GTK_CONTAINER (handle_box), toolbar);
    gtk_widget_show (toolbar);

    handle_box = gtk_handle_box_new ();
    gtk_container_add (GTK_CONTAINER (hbox), handle_box);
    gtk_signal_connect (GTK_OBJECT (handle_box),
			"child_attached",
			GTK_SIGNAL_FUNC (handle_box_child_signal),
			"attached");
    gtk_signal_connect (GTK_OBJECT (handle_box),
			"child_detached",
			GTK_SIGNAL_FUNC (handle_box_child_signal),
			"detached");
    gtk_widget_show (handle_box);

    handle_box2 = gtk_handle_box_new ();
    gtk_container_add (GTK_CONTAINER (handle_box), handle_box2);
    gtk_signal_connect (GTK_OBJECT (handle_box2),
			"child_attached",
			GTK_SIGNAL_FUNC (handle_box_child_signal),
			"attached");
    gtk_signal_connect (GTK_OBJECT (handle_box2),
			"child_detached",
			GTK_SIGNAL_FUNC (handle_box_child_signal),
			"detached");
    gtk_widget_show (handle_box2);

    label = gtk_label_new ("Fooo!");
    gtk_container_add (GTK_CONTAINER (handle_box2), label);
    gtk_widget_show (label);
  }

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

/*
 * Reparent demo
 */

static void
reparent_label (GtkWidget *widget,
		GtkWidget *new_parent)
{
  GtkWidget *label;

  label = gtk_object_get_user_data (GTK_OBJECT (widget));

  gtk_widget_reparent (label, new_parent);
}

static void
set_parent_signal (GtkWidget *child,
		   GtkWidget *old_parent,
		   gpointer   func_data)
{
  g_print ("set_parent for \"%s\": new parent: \"%s\", old parent: \"%s\", data: %d\n",
	   gtk_type_name (GTK_OBJECT_TYPE (child)),
	   child->parent ? gtk_type_name (GTK_OBJECT_TYPE (child->parent)) : "NULL",
	   old_parent ? gtk_type_name (GTK_OBJECT_TYPE (old_parent)) : "NULL",
	   GPOINTER_TO_INT (func_data));
}

static void
create_reparent (void)
{
  static GtkWidget *window = NULL;
  GtkWidget *box1;
  GtkWidget *box2;
  GtkWidget *box3;
  GtkWidget *frame;
  GtkWidget *button;
  GtkWidget *label;
  GtkWidget *separator;

  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), "reparent");
      gtk_container_border_width (GTK_CONTAINER (window), 0);

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

      box2 = gtk_hbox_new (FALSE, 5);
      gtk_container_border_width (GTK_CONTAINER (box2), 10);
      gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);

      label = gtk_label_new ("Hello World");

      frame = gtk_frame_new ("Frame 1");
      gtk_box_pack_start (GTK_BOX (box2), frame, TRUE, TRUE, 0);

      box3 = gtk_vbox_new (FALSE, 5);
      gtk_container_border_width (GTK_CONTAINER (box3), 5);
      gtk_container_add (GTK_CONTAINER (frame), box3);

      button = gtk_button_new_with_label ("switch");
      gtk_signal_connect (GTK_OBJECT (button), "clicked",
			  GTK_SIGNAL_FUNC(reparent_label),
			  box3);
      gtk_object_set_user_data (GTK_OBJECT (button), label);
      gtk_box_pack_start (GTK_BOX (box3), button, FALSE, TRUE, 0);

      gtk_box_pack_start (GTK_BOX (box3), label, FALSE, TRUE, 0);
      gtk_signal_connect (GTK_OBJECT (label),
			  "parent_set",
			  GTK_SIGNAL_FUNC (set_parent_signal),
			  GINT_TO_POINTER (42));

      frame = gtk_frame_new ("Frame 2");
      gtk_box_pack_start (GTK_BOX (box2), frame, TRUE, TRUE, 0);

      box3 = gtk_vbox_new (FALSE, 5);
      gtk_container_border_width (GTK_CONTAINER (box3), 5);
      gtk_container_add (GTK_CONTAINER (frame), box3);

      button = gtk_button_new_with_label ("switch");
      gtk_signal_connect (GTK_OBJECT (button), "clicked",
			  GTK_SIGNAL_FUNC(reparent_label),
			  box3);
      gtk_object_set_user_data (GTK_OBJECT (button), label);
      gtk_box_pack_start (GTK_BOX (box3), button, FALSE, TRUE, 0);

      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");