text: /*
   * This source file is part of RmlUi, the HTML/CSS Interface Middleware
   *
   * For the latest information, see http://github.com/mikke89/RmlUi
   *
   * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
   * Copyright (c) 2019 The RmlUi Team, and contributors
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   *
   */
  
  #ifndef RMLUI_CORE_LAYOUTINLINEBOXTEXT_H
  #define RMLUI_CORE_LAYOUTINLINEBOXTEXT_H
  
  #include "LayoutInlineBox.h"
  
  namespace Rml {
  
  /**
  	@author Peter Curry
   */
  
  class LayoutInlineBoxText : public LayoutInlineBox
  {
  public:
  	/// Constructs a new inline box for a text element.
  	/// @param[in] element The text element this inline box is flowing.
  	/// @param[in] line_begin The index of the first character of the element's string this text box will render.
  	LayoutInlineBoxText(ElementText* element, int line_begin = 0);
  	virtual ~LayoutInlineBoxText();
  
  	/// Returns true if this box is capable of overflowing, or if it must be rendered on a single line.
  	/// @return True if this box can overflow, false otherwise.
  	bool CanOverflow() const override;
  
  	/// Flows the inline box's content into its parent line.
  	/// @param[in] first_box True if this box is the first box containing content to be flowed into this line.
  	/// @param available_width[in] The width available for flowing this box's content. This is measured from the left side of this box's content area.
  	/// @param right_spacing_width[in] The width of the spacing that must be left on the right of the element if no overflow occurs. If overflow occurs, then the entire width can be used.
  	/// @return The overflow box containing any content that spilled over from the flow. This must be nullptr if no overflow occured.
  	UniquePtr<LayoutInlineBox> FlowContent(bool first_box, float available_width, float right_spacing_width) override;
  
  	/// Computes and sets the vertical position of this element, relative to its parent inline box (or block box,
  	/// for an un-nested inline box).
  	/// @param ascender[out] The maximum ascender of this inline box and all of its children.
  	/// @param descender[out] The maximum descender of this inline box and all of its children.
  	void CalculateBaseline(float& ascender, float& descender) override;
  	/// Offsets the baseline of this box, and all of its children, by the ascender of the parent line box.
  	/// @param ascender[in] The ascender of the line box.
  	void OffsetBaseline(float ascender) override;
  
  	/// Positions the inline box's element.
  	void PositionElement() override;
  	/// Sizes the inline box's element.
  	void SizeElement(bool split) override;
  
  	void* operator new(size_t size);
  	void operator delete(void* chunk, size_t size);
  
  private:
  	/// Returns the box's element as a text element.
  	/// @return The box's element cast to a text element.
  	ElementText* GetTextElement();
  
  	/// Builds a box for the first word of the element.
  	void BuildWordBox();
  
  	// The index of the first character of this line.
  	int line_begin;
  	// The contents on this line.
  	String line_contents;
  
  	// True if this line can be segmented into parts, false if it consists of only a single word.
  	bool line_segmented;
  };
  
  } // namespace Rml
  #endif
  