gcc/text-art/tree-widget.h

   1 /* Tree diagrams.
   2    Copyright (C) 2024 Free Software Foundation, Inc.
   3    Contributed by David Malcolm <dmalcolm@redhat.com>.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it
   8 under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful, but
  13 WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GCC_TEXT_ART_TREE_WIDGET_H
  22 #define GCC_TEXT_ART_TREE_WIDGET_H
  23
  24 #include "text-art/canvas.h"
  25 #include "text-art/widget.h"
  26
  27 namespace text_art {
  28
  29 class dump_widget_info;
  30
  31 class tree_widget : public widget
  32 {
  33 public:
  34   tree_widget (std::unique_ptr<widget> node,
  35                const theme &theme,
  36                style::id_t style_id)
  37   : m_node (std::move (node)),
  38     m_theme (theme),
  39     m_style_id (style_id)
  40   {
  41   }
  42
  43   static std::unique_ptr<tree_widget>
  44   make (styled_string str, const theme &theme, style::id_t style_id);
  45
  46   static std::unique_ptr<tree_widget>
  47   make (const dump_widget_info &dwi, pretty_printer *pp);
  48
  49   static std::unique_ptr<tree_widget>
  50   make (const dump_widget_info &dwi, const char *str);
  51
  52   static std::unique_ptr<tree_widget>
  53   from_fmt (const dump_widget_info &dwi,
  54             printer_fn format_decoder,
  55             const char *fmt, ...)
  56     ATTRIBUTE_GCC_PPDIAG(3, 4);
  57
  58   const char *get_desc () const override;
  59   canvas::size_t calc_req_size () final override;
  60   void update_child_alloc_rects () final override;
  61   void paint_to_canvas (canvas &canvas) final override;
  62
  63   void add_child (std::unique_ptr<widget> child)
  64   {
  65     if (child)
  66       m_children.push_back (std::move (child));
  67   }
  68
  69   size_t get_num_children () const
  70   {
  71     return m_children.size ();
  72   }
  73
  74 private:
  75   std::unique_ptr<widget> m_node;
  76   std::vector<std::unique_ptr<widget>> m_children;
  77   const theme &m_theme;
  78   style::id_t m_style_id;
  79 };
  80
  81 } // namespace text_art
  82
  83 #endif /* GCC_TEXT_ART_TREE_WIDGET_H */