text: /*
   * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include <LibGfx/Palette.h>
  #include <LibGUI/GAction.h>
  #include <LibGUI/GActionGroup.h>
  #include <LibGUI/GBoxLayout.h>
  #include <LibGUI/GButton.h>
  #include <LibGUI/GPainter.h>
  #include <LibGUI/GToolBar.h>
  
  namespace GUI {
  
  ToolBar::ToolBar(Widget* parent)
      : ToolBar(Orientation::Horizontal, 16, parent)
  {
  }
  
  ToolBar::ToolBar(Orientation orientation, int button_size, Widget* parent)
      : Widget(parent)
      , m_button_size(button_size)
  {
      if (orientation == Orientation::Horizontal) {
          set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
          set_preferred_size(0, button_size + 12);
      } else {
          set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
          set_preferred_size(button_size + 12, 0);
      }
      set_layout(make<BoxLayout>(orientation));
      layout()->set_spacing(0);
      layout()->set_margins({ 2, 2, 2, 2 });
  }
  
  ToolBar::~ToolBar()
  {
  }
  
  void ToolBar::add_action(Action& action)
  {
      auto item = make<Item>();
      item->type = Item::Type::Action;
      item->action = action;
  
      auto button = Button::construct(this);
      if (action.group() && action.group()->is_exclusive())
          button->set_exclusive(true);
      button->set_action(*item->action);
      button->set_tooltip(item->action->text());
      if (item->action->icon())
          button->set_icon(item->action->icon());
      else
          button->set_text(item->action->text());
  
      button->set_button_style(Gfx::ButtonStyle::CoolBar);
      button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
      ASSERT(button->size_policy(Orientation::Horizontal) == SizePolicy::Fixed);
      ASSERT(button->size_policy(Orientation::Vertical) == SizePolicy::Fixed);
      button->set_preferred_size(m_button_size + 8, m_button_size + 8);
  
      m_items.append(move(item));
  }
  
  class SeparatorWidget final : public Widget {
      C_OBJECT(SeparatorWidget)
  public:
      SeparatorWidget(Widget* parent)
          : Widget(parent)
      {
          set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
          set_preferred_size(8, 22);
      }
      virtual ~SeparatorWidget() override {}
  
      virtual void paint_event(PaintEvent& event) override
      {
          Painter painter(*this);
          painter.add_clip_rect(event.rect());
          painter.translate(rect().center().x() - 1, 0);
          painter.draw_line({ 0, 0 }, { 0, rect().bottom() }, palette().threed_shadow1());
          painter.draw_line({ 1, 0 }, { 1, rect().bottom() }, palette().threed_highlight());
      }
  };
  
  void ToolBar::add_separator()
  {
      auto item = make<Item>();
      item->type = Item::Type::Separator;
      new SeparatorWidget(this);
      m_items.append(move(item));
  }
  
  void ToolBar::paint_event(PaintEvent& event)
  {
      Painter painter(*this);
      painter.add_clip_rect(event.rect());
  
      if (m_has_frame)
          Gfx::StylePainter::paint_surface(painter, rect(), palette(), x() != 0, y() != 0);
      else
          painter.fill_rect(event.rect(), palette().button());
  }
  
  }
  