#include "specter/Table.hpp"
#include "specter/ViewResources.hpp"
#include "specter/RootView.hpp"
#include "specter/ScrollView.hpp"

namespace specter {
static logvisor::Module Log("specter::Table");
#define ROW_HEIGHT 18
#define CELL_MARGIN 1

Table::Table(ViewResources& res, View& parentView, ITableDataBinding* data, ITableStateBinding* state,
             size_t maxColumns)
: View(res, parentView)
, m_data(data)
, m_state(state)
, m_maxColumns(maxColumns)
, m_hVerts(new SolidShaderVert[maxColumns * 6])
, m_rowsView(*this, res) {
  if (!maxColumns)
    Log.report(logvisor::Fatal, "0-column tables not supported");

  m_scroll.m_view.reset(new ScrollView(res, *this, ScrollView::Style::ThinIndicator));

  commitResources(res, [&](boo::IGraphicsDataFactory::Context& ctx) -> bool {
    buildResources(ctx, res);
    m_vertsBinding.init(ctx, res, maxColumns * 6, m_viewVertBlockBuf);
    return true;
  });
  m_scroll.m_view->setContentView(&m_rowsView);

  updateData();
}

Table::RowsView::RowsView(Table& t, ViewResources& res)
: View(res, t), m_t(t), m_verts(new SolidShaderVert[SPECTER_TABLE_MAX_ROWS * t.m_maxColumns * 6]) {
  commitResources(res, [&](boo::IGraphicsDataFactory::Context& ctx) -> bool {
    buildResources(ctx, res);
    m_vertsBinding.init(ctx, res, SPECTER_TABLE_MAX_ROWS * t.m_maxColumns * 6, m_viewVertBlockBuf);
    return true;
  });
}

Table::CellView::CellView(Table& t, ViewResources& res)
: View(res, t), m_t(t), m_text(new TextView(res, *this, res.m_mainFont)), m_c(-1), m_r(-1) {}

void Table::_setHeaderVerts(const boo::SWindowRect& sub) {
  ;
  if (m_headerViews.empty())
    return;
  SolidShaderVert* v = m_hVerts.get();
  const IThemeData& theme = rootView().themeData();

  float pf = rootView().viewRes().pixelFactor();
  int margin = CELL_MARGIN * pf;
  int rowHeight = ROW_HEIGHT * pf;
  int xOff = 0;
  int yOff = sub.size[1];
  size_t c;
  auto it = m_headerViews.cbegin();

  size_t sCol = -1;
  SortDirection sDir = SortDirection::None;
  if (m_state)
    sDir = m_state->getSort(sCol);

  boo::SWindowRect headRowRect = sub;
  headRowRect.size[1] = rowHeight;
  headRowRect.location[1] = sub.size[1] - rowHeight;
  m_hCellRects = getCellRects(headRowRect);
  auto cellRectsIt = m_hCellRects.begin();

  for (c = 0; c < std::min(m_maxColumns, m_columns); ++c) {
    const ViewChild<std::unique_ptr<CellView>>& hv = *it;
    const zeus::CColor* c1 = &theme.button1Inactive();
    const zeus::CColor* c2 = &theme.button2Inactive();
    if (hv.m_mouseDown && hv.m_mouseIn) {
      c1 = &theme.button1Press();
      c2 = &theme.button2Press();
    } else if (hv.m_mouseIn) {
      c1 = &theme.button1Hover();
      c2 = &theme.button2Hover();
    }

    zeus::CColor cm1 = *c1;
    zeus::CColor cm2 = *c2;
    if (sCol == c) {
      if (sDir == SortDirection::Ascending) {
        cm1 *= zeus::CColor::skGreen;
        cm2 *= zeus::CColor::skGreen;
      } else if (sDir == SortDirection::Descending) {
        cm1 *= zeus::CColor::skRed;
        cm2 *= zeus::CColor::skRed;
      }
    }

    int div = cellRectsIt->size[0];
    v[0].m_pos.assign(xOff + margin, yOff - margin, 0);
    v[0].m_color = cm1;
    v[1] = v[0];
    v[2].m_pos.assign(xOff + margin, yOff - margin - rowHeight, 0);
    v[2].m_color = cm2;
    v[3].m_pos.assign(xOff + div - margin, yOff - margin, 0);
    v[3].m_color = cm1;
    v[4].m_pos.assign(xOff + div - margin, yOff - margin - rowHeight, 0);
    v[4].m_color = cm2;
    v[5] = v[4];
    v += 6;
    xOff += div;
    ++it;
    ++cellRectsIt;
  }

  if (c)
    m_vertsBinding.load(m_hVerts.get(), 6 * c);

  m_headerNeedsUpdate = false;
}

void Table::RowsView::_setRowVerts(const boo::SWindowRect& sub, const boo::SWindowRect& scissor) {
  SolidShaderVert* v = m_verts.get();
  const IThemeData& theme = rootView().themeData();

  if (m_t.m_cellPools.empty())
    return;

  float pf = rootView().viewRes().pixelFactor();
  int spacing = (ROW_HEIGHT + CELL_MARGIN * 2) * pf;
  int margin = CELL_MARGIN * pf;
  int rowHeight = ROW_HEIGHT * pf;
  int yOff = 0;
  int idx = 0;
  while (sub.location[1] + yOff < scissor.location[1] + scissor.size[1] || (idx & 1) != 0) {
    yOff += spacing;
    ++idx;
  }
  int startIdx = int(m_t.m_rows) - idx;

  std::vector<boo::SWindowRect> cellRects = m_t.getCellRects(sub);

  size_t r, c;
  for (r = 0, c = 0; r < SPECTER_TABLE_MAX_ROWS && (sub.location[1] + yOff + spacing) >= scissor.location[1]; ++r) {
    const zeus::CColor& color = (startIdx + r == m_t.m_selectedRow)
                                    ? theme.tableCellBgSelected()
                                    : ((r & 1) ? theme.tableCellBg1() : theme.tableCellBg2());
    int xOff = 0;
    auto cellRectsIt = cellRects.begin();
    for (c = 0; c < std::min(m_t.m_maxColumns, m_t.m_columns); ++c) {
      int div = cellRectsIt->size[0];
      v[0].m_pos.assign(xOff + margin, yOff - margin, 0);
      v[0].m_color = color;
      v[1] = v[0];
      v[2].m_pos.assign(xOff + margin, yOff - margin - rowHeight, 0);
      v[2].m_color = color;
      v[3].m_pos.assign(xOff + div - margin, yOff - margin, 0);
      v[3].m_color = color;
      v[4].m_pos.assign(xOff + div - margin, yOff - margin - rowHeight, 0);
      v[4].m_color = color;
      v[5] = v[4];
      v += 6;
      xOff += div;
      ++cellRectsIt;
    }
    yOff -= spacing;
  }
  m_visibleStart = std::max(0, startIdx);
  m_visibleRows = r;
  if (r * c)
    m_vertsBinding.load(m_verts.get(), 6 * r * c);
}

void Table::cycleSortColumn(size_t c) {
  if (c >= m_columns)
    Log.report(logvisor::Fatal, "cycleSortColumn out of bounds (%" PRISize ", %" PRISize ")", c, m_columns);
  if (m_state) {
    size_t cIdx;
    SortDirection dir = m_state->getSort(cIdx);
    if (dir == SortDirection::None || cIdx != c)
      m_state->setSort(c, SortDirection::Ascending);
    else if (dir == SortDirection::Ascending)
      m_state->setSort(c, SortDirection::Descending);
    else if (dir == SortDirection::Descending)
      m_state->setSort(c, SortDirection::Ascending);
  }
}

void Table::selectRow(size_t r) {
  if (m_inSelectRow)
    return;
  if (r >= m_rows && r != -1)
    Log.report(logvisor::Fatal, "selectRow out of bounds (%" PRISize ", %" PRISize ")", r, m_rows);
  if (r == m_selectedRow) {
    if (m_state) {
      m_inSelectRow = true;
      m_state->setSelectedRow(r);
      m_inSelectRow = false;
    }
    return;
  }

  if (m_selectedRow != -1 && m_activePool != -1) {
    size_t poolIdx = m_selectedRow / SPECTER_TABLE_MAX_ROWS;
    int pool0 = (poolIdx & 1) != 0;
    int pool1 = (poolIdx & 1) == 0;
    if (m_activePool == poolIdx) {
      for (auto& col : m_cellPools) {
        ViewChild<std::unique_ptr<CellView>>& cv = col[pool0].at(m_selectedRow % SPECTER_TABLE_MAX_ROWS);
        if (cv.m_view)
          cv.m_view->deselect();
      }
    } else if (m_activePool + 1 == poolIdx) {
      for (auto& col : m_cellPools) {
        ViewChild<std::unique_ptr<CellView>>& cv = col[pool1].at(m_selectedRow % SPECTER_TABLE_MAX_ROWS);
        if (cv.m_view)
          cv.m_view->deselect();
      }
    }
  }

  m_selectedRow = r;

  if (m_selectedRow != -1 && m_activePool != -1) {
    size_t poolIdx = m_selectedRow / SPECTER_TABLE_MAX_ROWS;
    int pool0 = (poolIdx & 1) != 0;
    int pool1 = (poolIdx & 1) == 0;
    if (m_activePool == poolIdx) {
      for (auto& col : m_cellPools) {
        ViewChild<std::unique_ptr<CellView>>& cv = col[pool0].at(m_selectedRow % SPECTER_TABLE_MAX_ROWS);
        if (cv.m_view)
          cv.m_view->select();
      }
    } else if (m_activePool + 1 == poolIdx) {
      for (auto& col : m_cellPools) {
        ViewChild<std::unique_ptr<CellView>>& cv = col[pool1].at(m_selectedRow % SPECTER_TABLE_MAX_ROWS);
        if (cv.m_view)
          cv.m_view->select();
      }
    }
  }

  updateSize();

  if (m_state) {
    m_inSelectRow = true;
    m_state->setSelectedRow(r);
    m_inSelectRow = false;
  }
}

void Table::setMultiplyColor(const zeus::CColor& color) {
  View::setMultiplyColor(color);
  if (m_scroll.m_view)
    m_scroll.m_view->setMultiplyColor(color);
  for (ViewChild<std::unique_ptr<CellView>>& hv : m_headerViews)
    if (hv.m_view)
      hv.m_view->m_text->setMultiplyColor(color);
  for (auto& col : m_cellPools) {
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[0])
      if (cv.m_view)
        cv.m_view->m_text->setMultiplyColor(color);
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[1])
      if (cv.m_view)
        cv.m_view->m_text->setMultiplyColor(color);
  }
}

void Table::CellView::select() {
  m_selected = true;
  m_text->colorGlyphs(rootView().themeData().fieldText());
}

void Table::CellView::deselect() {
  m_selected = false;
  m_text->colorGlyphs(rootView().themeData().uiText());
}

void Table::mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mod) {
  if (m_state && m_state->columnSplitResizeAllowed()) {
    size_t cIdx = 0;
    for (const boo::SWindowRect& rect : m_hCellRects) {
      if (cIdx == 0) {
        ++cIdx;
        continue;
      }
      if (abs(coord.pixel[0] - rect.location[0]) < 4 &&
          unsigned(coord.pixel[1] - subRect().location[1] - subRect().size[1] + rect.size[1]) <
              unsigned(rect.size[1])) {
        m_hDraggingIdx = cIdx;
        rootView().setActiveDragView(this);
        return;
      }
      ++cIdx;
    }
  }

  m_scroll.mouseDown(coord, button, mod);
  if (m_headerNeedsUpdate)
    _setHeaderVerts(subRect());

  if (m_deferredActivation != -1 && m_state) {
    m_state->rowActivated(m_deferredActivation);
    m_deferredActivation = -1;
  }
}

void Table::RowsView::mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mod) {
  for (ViewChild<std::unique_ptr<CellView>>& hv : m_t.m_headerViews)
    if (hv.mouseDown(coord, button, mod))
      return; /* Trap header event */
  for (auto& col : m_t.m_cellPools) {
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[0])
      cv.mouseDown(coord, button, mod);
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[1])
      cv.mouseDown(coord, button, mod);
  }
}

void Table::CellView::mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mod) {
  if (m_r != -1) {
    m_t.selectRow(m_r);
    if (m_t.m_clickFrames < 15)
      m_t.m_deferredActivation = m_r;
    else
      m_t.m_clickFrames = 0;
  } else
    m_t.m_headerNeedsUpdate = true;
}

void Table::mouseUp(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mod) {
  m_scroll.mouseUp(coord, button, mod);
  if (m_headerNeedsUpdate)
    _setHeaderVerts(subRect());
  if (m_hDraggingIdx) {
    rootView().setActiveDragView(nullptr);
    m_hDraggingIdx = 0;
  }
}

void Table::RowsView::mouseUp(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mod) {
  size_t idx = 0;
  for (ViewChild<std::unique_ptr<CellView>>& hv : m_t.m_headerViews) {
    if (hv.m_mouseDown && hv.m_mouseIn)
      m_t.cycleSortColumn(idx);
    hv.mouseUp(coord, button, mod);
    ++idx;
  }
  for (auto& col : m_t.m_cellPools) {
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[0])
      cv.mouseUp(coord, button, mod);
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[1])
      cv.mouseUp(coord, button, mod);
  }
}

void Table::CellView::mouseUp(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mod) {
  if (m_r == -1)
    m_t.m_headerNeedsUpdate = true;
}

void Table::mouseMove(const boo::SWindowCoord& coord) {
  if (m_state && m_state->columnSplitResizeAllowed()) {
    if (m_hDraggingIdx) {
      float split = (coord.pixel[0] - subRect().location[0]) / float(subRect().size[0]);

      if (m_hDraggingIdx <= 1)
        split = std::max(0.03f, split);
      else
        split = std::max(m_state->getColumnSplit(m_hDraggingIdx - 1) + 0.03f, split);

      if (m_hDraggingIdx >= m_columns - 1)
        split = std::min(0.97f, split);
      else
        split = std::min(m_state->getColumnSplit(m_hDraggingIdx + 1) - 0.03f, split);

      m_state->setColumnSplit(m_hDraggingIdx, split);
      updateSize();
      return;
    }
    size_t cIdx = 0;
    bool hovering = false;
    for (const boo::SWindowRect& rect : m_hCellRects) {
      if (cIdx++ == 0)
        continue;
      if (abs(coord.pixel[0] - rect.location[0]) < 4 &&
          unsigned(coord.pixel[1] - subRect().location[1] - subRect().size[1] + rect.size[1]) <
              unsigned(rect.size[1])) {
        hovering = true;
        break;
      }
    }
    rootView().setVerticalSplitHover(hovering);
  }

  m_scroll.mouseMove(coord);
  if (m_headerNeedsUpdate)
    _setHeaderVerts(subRect());
}

void Table::RowsView::mouseMove(const boo::SWindowCoord& coord) {
  for (ViewChild<std::unique_ptr<CellView>>& hv : m_t.m_headerViews)
    hv.mouseMove(coord);
  for (auto& col : m_t.m_cellPools) {
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[0])
      cv.mouseMove(coord);
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[1])
      cv.mouseMove(coord);
  }
}

void Table::mouseEnter(const boo::SWindowCoord& coord) {
  m_scroll.mouseEnter(coord);
  if (m_headerNeedsUpdate)
    _setHeaderVerts(subRect());
}

void Table::CellView::mouseEnter(const boo::SWindowCoord& coord) {
  if (m_r == -1)
    m_t.m_headerNeedsUpdate = true;
}

void Table::mouseLeave(const boo::SWindowCoord& coord) {
  m_scroll.mouseLeave(coord);
  if (m_headerNeedsUpdate)
    _setHeaderVerts(subRect());
}

void Table::RowsView::mouseLeave(const boo::SWindowCoord& coord) {
  for (ViewChild<std::unique_ptr<CellView>>& hv : m_t.m_headerViews)
    hv.mouseLeave(coord);
  for (auto& col : m_t.m_cellPools) {
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[0])
      cv.mouseLeave(coord);
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[1])
      cv.mouseLeave(coord);
  }
}

void Table::CellView::mouseLeave(const boo::SWindowCoord& coord) {
  if (m_r == -1)
    m_t.m_headerNeedsUpdate = true;
}

void Table::scroll(const boo::SWindowCoord& coord, const boo::SScrollDelta& scroll) { m_scroll.scroll(coord, scroll); }

void Table::think() {
  if (m_scroll.m_view)
    m_scroll.m_view->think();
  ++m_clickFrames;
}

void Table::CellView::reset() {
  m_c = -1;
  m_r = -1;
  if (m_textHash) {
    m_text->typesetGlyphs("");
    m_textHash = 0;
  }
}

bool Table::CellView::reset(size_t c) {
  m_c = c;
  m_r = -1;
  auto headerText = m_t.m_data->header(c);
  if (!headerText.empty()) {
    uint64_t hash = XXH64(headerText.data(), headerText.size(), 0);
    if (hash != m_textHash) {
      m_text->typesetGlyphs(headerText, rootView().themeData().uiText());
      m_textHash = hash;
    }
    return true;
  } else if (m_textHash) {
    m_text->typesetGlyphs("");
    m_textHash = 0;
  }
  return false;
}

bool Table::CellView::reset(size_t c, size_t r) {
  m_c = c;
  m_r = r;
  auto cellText = m_t.m_data->cell(c, r);
  if (!cellText.empty()) {
    uint64_t hash = XXH64(cellText.data(), cellText.size(), 0);
    if (hash != m_textHash) {
      m_text->typesetGlyphs(cellText, rootView().themeData().uiText());
      m_textHash = hash;
    }
    return true;
  } else if (m_textHash) {
    m_text->typesetGlyphs("");
    m_textHash = 0;
  }
  return false;
}

std::vector<Table::ColumnPool>& Table::ensureCellPools(size_t rows, size_t cols, ViewResources& res) {
  if (m_cellPools.size() < cols) {
    m_cellPools.reserve(cols);
    for (size_t i = m_cellPools.size(); i < cols; ++i)
      m_cellPools.emplace_back();
    m_ensuredRows = 0;
  }
  if (m_ensuredRows < rows) {
    for (size_t i = 0; i < cols; ++i) {
      ColumnPool& cp = m_cellPools[i];
      if (rows > SPECTER_TABLE_MAX_ROWS) {
        for (int p = 0; p < 2; ++p)
          for (ViewChild<std::unique_ptr<CellView>>& cv : cp[p])
            if (!cv.m_view)
              cv.m_view.reset(new CellView(*this, res));
      } else {
        size_t r = 0;
        for (ViewChild<std::unique_ptr<CellView>>& cv : cp[0]) {
          if (!cv.m_view)
            cv.m_view.reset(new CellView(*this, res));
          ++r;
          if (r >= rows)
            break;
        }
      }
    }
    m_ensuredRows = rows;
  }
  return m_cellPools;
}

void Table::_updateData() {
  m_header = false;
  bool newViewChildren = false;
  if (m_columns != m_data->columnCount() || m_rows > m_data->rowCount() + SPECTER_TABLE_MAX_ROWS)
    newViewChildren = true;

  m_rows = m_data->rowCount();
  m_columns = m_data->columnCount();
  if (!m_columns)
    return;

  ViewResources& res = rootView().viewRes();
  if (newViewChildren) {
    m_headerViews.clear();
    m_cellPools.clear();
    m_headerViews.reserve(m_columns);
    for (size_t c = 0; c < m_columns; ++c)
      m_headerViews.emplace_back();
    m_ensuredRows = 0;
  }
  ensureCellPools(m_rows, m_columns, res);

  size_t poolIdx = m_rowsView.m_visibleStart / SPECTER_TABLE_MAX_ROWS;
  size_t startRow = poolIdx * SPECTER_TABLE_MAX_ROWS;
  int pool0 = (poolIdx & 1) != 0;
  int pool1 = (poolIdx & 1) == 0;

  for (size_t c = 0; c < m_columns; ++c) {
    std::unique_ptr<CellView>& cv = m_headerViews[c].m_view;
    if (!cv)
      cv.reset(new CellView(*this, res));
    if (cv->reset(c))
      m_header = true;

    ColumnPool& col = m_cellPools[c];

    if (poolIdx != m_activePool) {
      for (size_t r = startRow, i = 0; i < SPECTER_TABLE_MAX_ROWS; ++r, ++i) {
        ViewChild<std::unique_ptr<CellView>>& cv = col[pool0][i];
        if (cv.m_view) {
          if (r < m_rows)
            cv.m_view->reset(c, r);
          else
            cv.m_view->reset();
        }
      }
      for (size_t r = startRow + SPECTER_TABLE_MAX_ROWS, i = 0; i < SPECTER_TABLE_MAX_ROWS; ++r, ++i) {
        ViewChild<std::unique_ptr<CellView>>& cv = col[pool1][i];
        if (cv.m_view) {
          if (r < m_rows)
            cv.m_view->reset(c, r);
          else
            cv.m_view->reset();
        }
      }
    }
  }

  m_activePool = poolIdx;
}

void Table::updateData() {
  m_activePool = -1;
  updateSize();
}

std::vector<boo::SWindowRect> Table::getCellRects(const boo::SWindowRect& sub) const {
  if (!m_columns)
    return {};
  float pf = rootView().viewRes().pixelFactor();

  /* Validate column split values */
  bool valid = false;
  std::vector<float> splits;
  splits.reserve(m_columns);
  if (m_state) {
    float lastSplit = 0.0;
    size_t i;
    for (i = 0; i < m_columns; ++i) {
      float split = m_state->getColumnSplit(i);
      if (split < lastSplit || split < 0.0 || split > 1.0)
        break;
      splits.push_back(split);
      lastSplit = split;
    }
    if (i == m_columns)
      valid = true;
  }

  /* Uniform split otherwise */
  if (!valid) {
    float split = 0.0;
    for (size_t i = 0; i < m_columns; ++i) {
      splits.push_back(split);
      split += 1.0 / float(m_columns);
    }
  }

  std::vector<boo::SWindowRect> ret;
  ret.reserve(m_columns);

  int lastX = 0;
  for (size_t i = 0; i < m_columns; ++i) {
    float nextSplit = (i == m_columns - 1) ? 1.0 : splits[i + 1];
    int x = nextSplit * sub.size[0];
    ret.push_back({sub.location[0] + lastX, sub.location[1], x - lastX, int(ROW_HEIGHT * pf)});
    lastX = x;
  }

  return ret;
}

void Table::resized(const boo::SWindowRect& root, const boo::SWindowRect& sub) {
  View::resized(root, sub);
  if (m_scroll.m_view)
    m_scroll.m_view->resized(root, sub);

  boo::SWindowRect headRow = sub;
  float pf = rootView().viewRes().pixelFactor();
  headRow.location[1] += sub.size[1] - ROW_HEIGHT * pf;
  std::vector<boo::SWindowRect> cellRects = getCellRects(headRow);
  _setHeaderVerts(sub);
  size_t cIdx = 0;
  for (ViewChild<std::unique_ptr<CellView>>& hv : m_headerViews) {
    if (hv.m_view)
      hv.m_view->resized(root, cellRects[cIdx], sub);
    ++cIdx;
  }
}

int Table::RowsView::nominalHeight() const {
  float pf = rootView().viewRes().pixelFactor();
  int rows = m_t.m_rows + 1;
  return rows * (ROW_HEIGHT + CELL_MARGIN * 2) * pf;
}

void Table::RowsView::resized(const boo::SWindowRect& root, const boo::SWindowRect& sub,
                              const boo::SWindowRect& scissor) {
  View::resized(root, sub);
  _setRowVerts(sub, scissor);
  m_t._updateData();

  if (!m_t.m_columns)
    return;

  float pf = rootView().viewRes().pixelFactor();
  boo::SWindowRect cellScissor = scissor;
  cellScissor.size[1] -= 2 * pf;
  boo::SWindowRect rowRect = sub;
  rowRect.location[1] += sub.size[1] - ROW_HEIGHT * pf;
  int spacing = (ROW_HEIGHT + CELL_MARGIN * 2) * pf;
  std::vector<boo::SWindowRect> cellRects = m_t.getCellRects(rowRect);
  auto cellRectIt = cellRects.begin();
  int poolIdx = m_visibleStart / SPECTER_TABLE_MAX_ROWS;
  int pool0 = (poolIdx & 1) != 0;
  int pool1 = (poolIdx & 1) == 0;
  int locationStart = spacing * poolIdx * SPECTER_TABLE_MAX_ROWS;
  for (auto& col : m_t.m_cellPools) {
    cellRectIt->location[1] -= locationStart;
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[pool0]) {
      cellRectIt->location[1] -= spacing;
      if (cv.m_view)
        cv.m_view->resized(root, *cellRectIt, cellScissor);
    }
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[pool1]) {
      cellRectIt->location[1] -= spacing;
      if (cv.m_view)
        cv.m_view->resized(root, *cellRectIt, cellScissor);
    }
    ++cellRectIt;
  }

  m_scissorRect = scissor;
  m_scissorRect.size[1] -= spacing;
}

void Table::CellView::resized(const boo::SWindowRect& root, const boo::SWindowRect& sub,
                              const boo::SWindowRect& scissor) {
  View::resized(root, sub);
  boo::SWindowRect textRect = sub;
  float pf = rootView().viewRes().pixelFactor();
  textRect.location[0] += 5 * pf;
  textRect.location[1] += 5 * pf;
  m_text->resized(root, textRect);
  m_scissorRect = sub.intersect(scissor);
}

void Table::draw(boo::IGraphicsCommandQueue* gfxQ) {
  if (m_scroll.m_view)
    m_scroll.m_view->draw(gfxQ);
}

void Table::RowsView::draw(boo::IGraphicsCommandQueue* gfxQ) {
  gfxQ->setShaderDataBinding(m_vertsBinding);

  gfxQ->setScissor(m_scissorRect);
  gfxQ->draw(1, m_visibleRows * m_t.m_columns * 6 - 2);

  int poolIdx = m_t.m_activePool;
  int pool0 = (poolIdx & 1) != 0;
  int pool1 = (poolIdx & 1) == 0;
  for (auto& col : m_t.m_cellPools) {
    size_t idx = poolIdx * SPECTER_TABLE_MAX_ROWS;
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[pool0]) {
      if (cv.m_view && idx >= m_visibleStart && idx < m_visibleStart + m_visibleRows)
        cv.m_view->draw(gfxQ);
      ++idx;
    }
    for (ViewChild<std::unique_ptr<CellView>>& cv : col[pool1]) {
      if (cv.m_view && idx >= m_visibleStart && idx < m_visibleStart + m_visibleRows)
        cv.m_view->draw(gfxQ);
      ++idx;
    }
  }

  if (m_t.m_header) {
    gfxQ->setShaderDataBinding(m_t.m_vertsBinding);
    gfxQ->setScissor(rootView().subRect());
    gfxQ->draw(1, m_t.m_columns * 6 - 2);
    for (ViewChild<std::unique_ptr<CellView>>& hv : m_t.m_headerViews)
      if (hv.m_view)
        hv.m_view->draw(gfxQ);
  }

  gfxQ->setScissor(rootView().subRect());
}

void Table::CellView::draw(boo::IGraphicsCommandQueue* gfxQ) {
  if (m_scissorRect.size[0] && m_scissorRect.size[1]) {
    gfxQ->setScissor(m_scissorRect);
    m_text->draw(gfxQ);
  }
}

} // namespace specter