C++ GTK_IS_EDITABLE函数代码示例

/**
 * e_dialog_editable_get:
 * @widget: A #GtkEditable widget.
 *
 * Queries the string value inside a #GtkEditable-derived widget.
 *
 * Return value: String value.  You should free it when you are done with it.
 * This function can return NULL if the string could not be converted from
 * GTK+'s encoding into UTF8.
 **/
gchar *
e_dialog_editable_get (GtkWidget *widget)
{
	g_return_val_if_fail (GTK_IS_EDITABLE (widget), NULL);

	return gtk_editable_get_chars (GTK_EDITABLE (widget), 0, -1);
}

/**
 * gtk_editable_get_position:
 * @editable: a #GtkEditable
 *
 * Retrieves the current position of the cursor relative to the start
 * of the content of the editable. 
 * 
 * Note that this position is in characters, not in bytes.
 *
 * Return value: the cursor position
 */
gint
gtk_editable_get_position (GtkEditable *editable)
{
  g_return_val_if_fail (GTK_IS_EDITABLE (editable), 0);

  return GTK_EDITABLE_GET_IFACE (editable)->get_position (editable);
}

/**
 * gtk_editable_paste_clipboard:
 * @editable: a #GtkEditable
 *
 * Pastes the content of the clipboard to the current position of the
 * cursor in the editable.
 */
void
gtk_editable_paste_clipboard (GtkEditable *editable)
{
  g_return_if_fail (GTK_IS_EDITABLE (editable));
  
  g_signal_emit_by_name (editable, "paste-clipboard");
}

/**
 * gtk_editable_set_position:
 * @editable: a #GtkEditable
 * @position: the position of the cursor 
 *
 * Sets the cursor position in the editable to the given value.
 *
 * The cursor is displayed before the character with the given (base 0) 
 * index in the contents of the editable. The value must be less than or 
 * equal to the number of characters in the editable. A value of -1 
 * indicates that the position should be set after the last character 
 * of the editable. Note that @position is in characters, not in bytes.
 */
void
gtk_editable_set_position (GtkEditable      *editable,
			   gint              position)
{
  g_return_if_fail (GTK_IS_EDITABLE (editable));

  GTK_EDITABLE_GET_IFACE (editable)->set_position (editable, position);
}

/**
 * gtk_editable_select_region: (virtual set_selection_bounds)
 * @editable: a #GtkEditable
 * @start_pos: start of region
 * @end_pos: end of region
 *
 * Selects a region of text. The characters that are selected are 
 * those characters at positions from @start_pos up to, but not 
 * including @end_pos. If @end_pos is negative, then the
 * characters selected are those characters from @start_pos to 
 * the end of the text.
 * 
 * Note that positions are specified in characters, not bytes.
 */
void
gtk_editable_select_region (GtkEditable *editable,
			    gint         start_pos,
			    gint         end_pos)
{
  g_return_if_fail (GTK_IS_EDITABLE (editable));
  
  GTK_EDITABLE_GET_IFACE (editable)->set_selection_bounds (editable, start_pos, end_pos);
}

/**
 * gtk_editable_delete_text: (virtual do_delete_text)
 * @editable: a #GtkEditable
 * @start_pos: start position
 * @end_pos: end position
 *
 * Deletes a sequence of characters. The characters that are deleted are 
 * those characters at positions from @start_pos up to, but not including 
 * @end_pos. If @end_pos is negative, then the characters deleted
 * are those from @start_pos to the end of the text.
 *
 * Note that the positions are specified in characters, not bytes.
 */
void
gtk_editable_delete_text (GtkEditable *editable,
			  gint         start_pos,
			  gint         end_pos)
{
  g_return_if_fail (GTK_IS_EDITABLE (editable));

  GTK_EDITABLE_GET_IFACE (editable)->do_delete_text (editable, start_pos, end_pos);
}

static void
editable_undo_delete_text (GObject *object,
                           gint position_start,
                           gint position_end)
{
	g_return_if_fail (GTK_IS_EDITABLE (object));

	gtk_editable_delete_text (GTK_EDITABLE (object), position_start, position_end);
}

static void
editable_undo_insert_text (GObject *object,
                           const gchar *text,
                           gint position)
{
	g_return_if_fail (GTK_IS_EDITABLE (object));

	gtk_editable_insert_text (GTK_EDITABLE (object), text, -1, &position);
}

gchar *    
gtk_editable_get_chars (GtkEditable *editable,
			gint         start,
			gint         end)
{
  g_return_val_if_fail (GTK_IS_EDITABLE (editable), NULL);

  return GTK_EDITABLE_GET_CLASS (editable)->get_chars (editable, start, end);
}

void
gtk_editable_select_region (GtkEditable *editable,
			    gint         start,
			    gint         end)
{
  g_return_if_fail (GTK_IS_EDITABLE (editable));
  
  GTK_EDITABLE_GET_CLASS (editable)->set_selection_bounds (editable,  start, end);
}

/**
 * gtk_editable_get_chars:
 * @editable: a #GtkEditable
 * @start_pos: start of text
 * @end_pos: end of text
 *
 * Retrieves a sequence of characters. The characters that are retrieved 
 * are those characters at positions from @start_pos up to, but not 
 * including @end_pos. If @end_pos is negative, then the characters
 * retrieved are those characters from @start_pos to the end of the text.
 * 
 * Note that positions are specified in characters, not bytes.
 *
 * Return value: a pointer to the contents of the widget as a
 *      string. This string is allocated by the #GtkEditable
 *      implementation and should be freed by the caller.
 */
gchar *    
gtk_editable_get_chars (GtkEditable *editable,
			gint         start_pos,
			gint         end_pos)
{
  g_return_val_if_fail (GTK_IS_EDITABLE (editable), NULL);

  return GTK_EDITABLE_GET_IFACE (editable)->get_chars (editable, start_pos, end_pos);
}

static void on_break_ignore_editing_started(G_GNUC_UNUSED GtkCellRenderer *cell,
	GtkCellEditable *editable, G_GNUC_UNUSED const gchar *path, G_GNUC_UNUSED gpointer gdata)
{
	if (GTK_IS_EDITABLE(editable))
		validator_attach(GTK_EDITABLE(editable), VALIDATOR_NUMERIC);

	if (GTK_IS_ENTRY(editable))
		gtk_entry_set_max_length(GTK_ENTRY(editable), 10);
}

/**
 * gtk_editable_delete_selection:
 * @editable: a #GtkEditable
 *
 * Deletes the currently selected text of the editable.
 * This call doesn’t do anything if there is no selected text.
 */
void
gtk_editable_delete_selection (GtkEditable *editable)
{
  gint start, end;

  g_return_if_fail (GTK_IS_EDITABLE (editable));

  if (gtk_editable_get_selection_bounds (editable, &start, &end))
    gtk_editable_delete_text (editable, start, end);
}

/**
 * gtk_editable_set_editable:
 * @editable: a #GtkEditable
 * @is_editable: %TRUE if the user is allowed to edit the text
 *   in the widget
 *
 * Determines if the user can edit the text in the editable
 * widget or not. 
 */
void
gtk_editable_set_editable (GtkEditable    *editable,
			   gboolean        is_editable)
{
  g_return_if_fail (GTK_IS_EDITABLE (editable));

  g_object_set (editable,
		"editable", is_editable != FALSE,
		NULL);
}

static void
edit_copy_activated (GtkAction  * action,
                     CMainWindow* self)
{
	if (GTK_IS_EDITABLE (gtk_window_get_focus (GTK_WINDOW (self)))) {
		gtk_editable_copy_clipboard (GTK_EDITABLE (gtk_window_get_focus (GTK_WINDOW (self))));
	} else if (C_IS_TASK_WIDGET (gtk_window_get_focus (GTK_WINDOW (self)))) {
                c_task_widget_copy_clipboard (C_TASK_WIDGET (gtk_window_get_focus (GTK_WINDOW (self))));
	}
}