layout.cc

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#include "ion/text/layout.h"

namespace ion {
namespace text {

bool Layout::AddGlyph(const Glyph& glyph) {
  if (glyph.glyph_index) {
    glyphs_.push_back(glyph);
    return true;
  }
  return false;
}

size_t Layout::GetGlyphCount() const { return glyphs_.size(); }

void Layout::Reserve(size_t s) { glyphs_.reserve(s); }

const Layout::Glyph& Layout::GetGlyph(size_t i) const {
  return i < glyphs_.size() ? glyphs_[i] : base::InvalidReference<Glyph>();
}

bool Layout::ReplaceGlyph(size_t i, const Glyph& new_glyph) {
  if (i < glyphs_.size() && new_glyph.glyph_index) {
    glyphs_[i] = new_glyph;
    return true;
  }
  return false;
}

void Layout::GetGlyphSet(GlyphSet* glyphs) const {
  for (size_t i = 0; i < glyphs_.size(); ++i)
    glyphs->insert(glyphs_[i].glyph_index);
}

float Layout::GetLineAdvanceHeight() const {
  return line_advance_height_;
}

void Layout::SetLineAdvanceHeight(float line_advance) {
  line_advance_height_ = line_advance;
}

std::ostream& operator<<(std::ostream& out, const Layout::Quad& q) {
  return out << "QUAD { "
             << q.points[0] << ", "
             << q.points[1] << ", "
             << q.points[2] << ", "
             << q.points[3] << " }";
}

std::ostream& operator<<(std::ostream& out, const Layout::Glyph& g) {
  return out << "GLYPH { " << g.glyph_index << ": " << g.quad << " }";
}

std::ostream& operator<<(std::ostream& os, const Layout& layout) {
  os << "LAYOUT { ";
  for (size_t i = 0; i < layout.GetGlyphCount(); ++i)
    os << layout.GetGlyph(i) << ", ";
  os << "}";
  return os;
}

}  // namespace text
}  // namespace ion