gtkinputdialog.c

gtk是linux一款强大的夸平台的图形化开发工具

  inputd->close_button = gtk_button_new_with_label (_("Close"));
  GTK_WIDGET_SET_FLAGS (inputd->close_button, GTK_CAN_DEFAULT);
  gtk_box_pack_start (GTK_BOX (GTK_DIALOG(inputd)->action_area),
		      inputd->close_button, TRUE, TRUE, 0);

  gtk_widget_show (inputd->close_button);
  gtk_widget_grab_default (inputd->close_button);

  gtk_widget_show (vbox);
}


GtkWidget*
gtk_input_dialog_new (void)
{
  GtkInputDialog *inputd;

  inputd = gtk_type_new (GTK_TYPE_INPUT_DIALOG);

  return GTK_WIDGET (inputd);
}

static void
gtk_input_dialog_set_device(GtkWidget *widget, gpointer data)
{
  guint32 deviceid = GPOINTER_TO_UINT(data);
  GdkDeviceInfo *info;

  GtkInputDialog *inputd = GTK_INPUT_DIALOG(
                gtk_object_get_user_data(GTK_OBJECT(widget)));

  inputd->current_device = deviceid;
  info = gtk_input_dialog_get_device_info (deviceid);

  gtk_input_dialog_fill_axes(inputd, info);
  gtk_input_dialog_fill_keys(inputd, info);

  gtk_option_menu_set_history(GTK_OPTION_MENU(inputd->mode_optionmenu),
			      info->mode);
}

static void
gtk_input_dialog_finalize (GtkObject *object)
{
  /*  GtkInputDialog *inputd = GTK_INPUT_DIALOG (object); */

  /* Clean up ? */

  (* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
}

static void
gtk_input_dialog_set_mapping_mode(GtkWidget *w,
				  gpointer data)
{
  GtkInputDialog *inputd = GTK_INPUT_DIALOG(
                gtk_object_get_user_data(GTK_OBJECT(w)));
  GdkDeviceInfo *info = gtk_input_dialog_get_device_info (inputd->current_device);
  GdkInputMode old_mode = info->mode;
  GdkInputMode mode = GPOINTER_TO_INT (data);

  if (mode != old_mode)
    {
      if (gdk_input_set_mode(inputd->current_device, mode))
	{
	  if (mode == GDK_MODE_DISABLED)
	    gtk_signal_emit (GTK_OBJECT (inputd),
			     input_dialog_signals[DISABLE_DEVICE],
			     info->deviceid);
	  else
	    gtk_signal_emit (GTK_OBJECT (inputd),
			     input_dialog_signals[ENABLE_DEVICE],
			     info->deviceid);
	}
      else
	gtk_option_menu_set_history (GTK_OPTION_MENU (inputd->mode_optionmenu),
				     old_mode);

      /* FIXME: error dialog ? */
    }
}

static void
gtk_input_dialog_set_axis(GtkWidget *widget, gpointer data)
{
  GdkAxisUse use = GPOINTER_TO_INT(data) & 0xFFFF;
  GdkAxisUse old_use;
  GdkAxisUse *new_axes;
  GtkInputDialog *inputd = GTK_INPUT_DIALOG (gtk_object_get_user_data (GTK_OBJECT (widget)));
  GdkDeviceInfo *info = gtk_input_dialog_get_device_info (inputd->current_device);

  gint axis = (GPOINTER_TO_INT(data) >> 16) - 1;
  gint old_axis;
  int i;

  new_axes = g_new (GdkAxisUse, info->num_axes);
  old_axis = -1;
  for (i=0;i<info->num_axes;i++)
    {
      new_axes[i] = info->axes[i];
      if (info->axes[i] == use)
	old_axis = i;
    }

  if (axis != -1)
    old_use = info->axes[axis];
  else
    old_use = GDK_AXIS_IGNORE;

  if (axis == old_axis)
    return;

  /* we must always have an x and a y axis */
  if ((axis == -1 && (use == GDK_AXIS_X || use == GDK_AXIS_Y)) ||
      (old_axis == -1 && (old_use == GDK_AXIS_X || old_use == GDK_AXIS_Y)))
    {
      gtk_option_menu_set_history (
	        GTK_OPTION_MENU (inputd->axis_items[use]),
		old_axis + 1);
    }
  else
    {
      if (axis != -1)
	new_axes[axis] = use;

      if (old_axis != -1)
	new_axes[old_axis] = old_use;

      if (old_use != GDK_AXIS_IGNORE)
	{
	  gtk_option_menu_set_history (
		GTK_OPTION_MENU (inputd->axis_items[old_use]),
		old_axis + 1);
	}
      gdk_input_set_axes (info->deviceid, new_axes);
    }

  g_free (new_axes);
}

static void
gtk_input_dialog_fill_axes(GtkInputDialog *inputd, GdkDeviceInfo *info)
{
  static const char *axis_use_strings[GDK_AXIS_LAST] =
  {
    "",
    N_("X"),
    N_("Y"),
    N_("Pressure"),
    N_("X Tilt"),
    N_("Y Tilt")
  };

  int i,j;
  GtkWidget *menu;
  GtkWidget *option_menu;
  GtkWidget *label;

  /* remove all the old items */
  if (inputd->axis_list)
    {
      gtk_widget_hide (inputd->axis_list);	/* suppress resizes (or get warnings) */
      gtk_widget_destroy (inputd->axis_list);
    }
  inputd->axis_list = gtk_table_new (GDK_AXIS_LAST, 2, 0);
  gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (inputd->axis_listbox), 
					 inputd->axis_list);
  gtk_widget_show (inputd->axis_list);

  gtk_widget_realize (inputd->axis_list);
  gdk_window_set_background (inputd->axis_list->window,
			     &inputd->axis_list->style->base[GTK_STATE_NORMAL]);

  for (i=GDK_AXIS_X;i<GDK_AXIS_LAST;i++)
    {
      /* create the label */

      label = gtk_label_new (_(axis_use_strings[i]));
      gtk_table_attach (GTK_TABLE (inputd->axis_list), label, 0, 1, i, i+1, 
			0, 0, 2, 2);

      /* and the use option menu */
      menu = gtk_menu_new();

      for (j = -1; j < info->num_axes; j++)
	{
	  char buffer[16];
	  GtkWidget *menu_item;

	  if (j == -1)
	    menu_item = gtk_menu_item_new_with_label (_("none"));
	  else
	    {
	      sprintf (buffer,"%d",j+1);
	      menu_item = gtk_menu_item_new_with_label (buffer);
	    }
	  gtk_object_set_user_data (GTK_OBJECT (menu_item), inputd);
	  gtk_signal_connect (GTK_OBJECT (menu_item), "activate",
			      (GtkSignalFunc) gtk_input_dialog_set_axis,
			      GINT_TO_POINTER (0x10000 * (j + 1) + i));
	  gtk_widget_show (menu_item);
	  gtk_menu_append (GTK_MENU (menu), menu_item);
	}

      inputd->axis_items[i] = option_menu = gtk_option_menu_new ();
      gtk_table_attach (GTK_TABLE (inputd->axis_list), option_menu, 
			1, 2, i, i+1, 0, 0, 2, 2);

      gtk_widget_show (option_menu);
      gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
      for (j = 0; j < info->num_axes; j++)
	if (info->axes[j] == (GdkAxisUse) i)
	  {
	    gtk_option_menu_set_history (GTK_OPTION_MENU (option_menu), j+1);
	    break;
	  }

      gtk_widget_show (label);
    }
}

static void 
gtk_input_dialog_clear_key (GtkWidget *widget, GtkInputKeyInfo *key)
{
  gtk_entry_set_text (GTK_ENTRY(key->entry), _("(disabled)"));
  gdk_input_set_key (key->inputd->current_device, key->index, 0, 0);
}

static void 
gtk_input_dialog_set_key (GtkInputKeyInfo *key,
			  guint keyval, GdkModifierType modifiers)
{
  GString *str;
  gchar chars[2];

  if (keyval)
    {
      str = g_string_new("");
      
      if (modifiers & GDK_SHIFT_MASK)
	g_string_append (str, "Shft+");
      if (modifiers & GDK_CONTROL_MASK)
	g_string_append (str, "Ctl+");
      if (modifiers & GDK_MOD1_MASK)
	g_string_append (str, "Alt+");
      
      if ((keyval >= 0x20) && (keyval <= 0xFF))
	{
	  chars[0] = keyval;
	  chars[1] = 0;
	  g_string_append (str, chars);
	}
      else
	g_string_append (str, _("(unknown)"));
      gtk_entry_set_text (GTK_ENTRY(key->entry), str->str);

      g_string_free (str, TRUE);
    }
  else
    {
      gtk_entry_set_text (GTK_ENTRY(key->entry), _("(disabled)"));
    }
}

static gint
gtk_input_dialog_key_press (GtkWidget *widget, 
			    GdkEventKey *event,
			    GtkInputKeyInfo *key)
{
  gtk_input_dialog_set_key (key, event->keyval, event->state & 0xFF);
  gdk_input_set_key (key->inputd->current_device, key->index, 
		     event->keyval, event->state & 0xFF);

  gtk_signal_emit_stop_by_name (GTK_OBJECT(widget), "key_press_event");
  
  return TRUE;
}

static void 
gtk_input_dialog_destroy_key (GtkWidget *widget, GtkInputKeyInfo *key)
{
  g_free (key);
}

static void
gtk_input_dialog_fill_keys(GtkInputDialog *inputd, GdkDeviceInfo *info)
{
  int i;
  GtkWidget *label;
  GtkWidget *button;

  char buffer[32];
  
  /* remove all the old items */
  if (inputd->keys_list)
    {
      gtk_widget_hide (inputd->keys_list);	/* suppress resizes (or get warnings) */
      gtk_widget_destroy (inputd->keys_list);
    }

  inputd->keys_list = gtk_table_new (info->num_keys, 3, FALSE);
  gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (inputd->keys_listbox), 
					 inputd->keys_list);
  gtk_widget_show (inputd->keys_list);

  gtk_widget_realize (inputd->keys_list);
  gdk_window_set_background (inputd->keys_list->window,
			     &inputd->keys_list->style->base[GTK_STATE_NORMAL]);

  for (i=0;i<info->num_keys;i++)
    {
      GtkInputKeyInfo *key = g_new (GtkInputKeyInfo, 1);
      key->index = i;
      key->inputd = inputd;

      /* create the label */

      sprintf(buffer, "%d", i+1);
      label = gtk_label_new(buffer);
      gtk_table_attach (GTK_TABLE (inputd->keys_list), label, 0, 1, i, i+1, 
			0, 0, 2, 2);
      gtk_widget_show (label);

      /* the entry */

      key->entry = gtk_entry_new ();
      gtk_table_attach (GTK_TABLE (inputd->keys_list), key->entry, 1, 2, i, i+1, 
			GTK_EXPAND | GTK_FILL , 0, 2, 2);
      gtk_widget_show (key->entry);

      gtk_signal_connect (GTK_OBJECT(key->entry), "key_press_event",
			  GTK_SIGNAL_FUNC (gtk_input_dialog_key_press), key);
      gtk_signal_connect (GTK_OBJECT(key->entry), "destroy",
			  GTK_SIGNAL_FUNC (gtk_input_dialog_destroy_key), 
			  key);
      
      /* and clear button */

      button = gtk_button_new_with_label (_("clear"));
      gtk_table_attach (GTK_TABLE (inputd->keys_list), button, 2, 3, i, i+1, 
			0, 0, 2, 2);
      gtk_widget_show (button);

      gtk_signal_connect (GTK_OBJECT(button), "clicked",
			  GTK_SIGNAL_FUNC (gtk_input_dialog_clear_key), key);

      gtk_input_dialog_set_key (key, info->keys[i].keyval,
				info->keys[i].modifiers);
    }
}