C++ MathCell::Draw方法代码示例

void Bitmap::Draw()
{
  MathCell* tmp = m_tree;
  wxMemoryDC dc;
  dc.SelectObject(m_bmp);

  wxString bgColStr = wxT("white");
  wxConfig::Get()->Read(wxT("Style/Background/color"), &bgColStr);
  dc.SetBackground(*(wxTheBrushList->FindOrCreateBrush(bgColStr, wxBRUSHSTYLE_SOLID)));
  dc.Clear();

  if (tmp != NULL)
  {
    wxPoint point;
    point.x = 0;
    point.y = tmp->GetMaxCenter();
    int fontsize = 12;
    int drop = tmp->GetMaxDrop();

    wxConfig::Get()->Read(wxT("fontSize"), &fontsize);
    int mfontsize = fontsize;
    wxConfig::Get()->Read(wxT("mathfontsize"), &mfontsize);

    CellParser parser(dc);

    while (tmp != NULL)
    {
      if (!tmp->m_isBroken)
      {
        tmp->Draw(parser, point, tmp->IsMath() ? mfontsize : fontsize, false);
        if (tmp->m_next != NULL && tmp->m_next->BreakLineHere())
        {
          point.x = 0;
          point.y += drop + tmp->m_next->GetMaxCenter();
          if (tmp->m_bigSkip)
            point.y += MC_LINE_SKIP;
          drop = tmp->m_next->GetMaxDrop();
        }
        else
          point.x += (tmp->GetWidth() + MC_CELL_SKIP);
      }
      else
      {
        if (tmp->m_next != NULL && tmp->m_next->BreakLineHere())
        {
          point.x = 0;
          point.y += drop + tmp->m_next->GetMaxCenter();
          if (tmp->m_bigSkip)
            point.y += MC_LINE_SKIP;
          drop = tmp->m_next->GetMaxDrop();
        }
      }
      tmp = tmp->m_nextToDraw;
    }
  }
  dc.SelectObject(wxNullBitmap);
}

void GroupCell::Draw(CellParser& parser, wxPoint point, int fontsize)
{
  double scale = parser.GetScale();
  wxDC& dc = parser.GetDC();
  if (m_width == -1 || m_height == -1) {
    RecalculateWidths(parser, fontsize);
    RecalculateSize(parser, fontsize);
  }
  if (DrawThisCell(parser, point))
  {
    // draw a thick line for 'page break'
    // and return
    if (m_groupType == GC_TYPE_PAGEBREAK) {
      wxRect rect = GetRect(false);
      int y = rect.GetY();
      wxPen pen(parser.GetColor(TS_CURSOR), 1, wxPENSTYLE_DOT);
      dc.SetPen(pen);
      dc.DrawLine(0, y , 10000, y);
      MathCell::Draw(parser, point, fontsize);
      return;
    }

    //
    // Paint background if we have a text cell
    //
    if (m_groupType == GC_TYPE_TEXT) {
      wxRect rect = GetRect(false);
      int y = rect.GetY();

      if (m_height > 0 && m_width > 0 && y>=0) {
        wxBrush br(parser.GetColor(TS_TEXT_BACKGROUND));
        dc.SetBrush(br);
        wxPen pen(parser.GetColor(TS_TEXT_BACKGROUND));
        dc.SetPen(pen);
        dc.DrawRectangle(0, y , 10000, rect.GetHeight());
      }
    }
    //
    // Draw input and output
    //
    SetPen(parser);
    wxPoint in(point);
    parser.Outdated(false);
    m_input->DrawList(parser, in, fontsize);
    if (m_groupType == GC_TYPE_CODE && m_input->m_next)
      parser.Outdated(((EditorCell *)(m_input->m_next))->ContainsChanges());

    if (m_output != NULL && !m_hide) {
      MathCell *tmp = m_output;
      int drop = tmp->GetMaxDrop();
      in.y += m_input->GetMaxDrop() + m_output->GetMaxCenter();
      m_outputRect.y = in.y - m_output->GetMaxCenter();
      m_outputRect.x = in.x;

      while (tmp != NULL) {

        if (!tmp->m_isBroken) {
          tmp->m_currentPoint.x = in.x;
          tmp->m_currentPoint.y = in.y;
          if (tmp->DrawThisCell(parser, in))
            tmp->Draw(parser, in, MAX(tmp->IsMath() ? m_mathFontSize : m_fontSize, MC_MIN_SIZE));
          if (tmp->m_nextToDraw != NULL) {
            if (tmp->m_nextToDraw->BreakLineHere()) {
              in.x = m_indent;
              in.y += drop + tmp->m_nextToDraw->GetMaxCenter();
              if (tmp->m_bigSkip)
                in.y += MC_LINE_SKIP;
              drop = tmp->m_nextToDraw->GetMaxDrop();
            } else
              in.x += (tmp->GetWidth() + MC_CELL_SKIP);
          }

        } else {
          if (tmp->m_nextToDraw != NULL && tmp->m_nextToDraw->BreakLineHere()) {
            in.x = m_indent;
            in.y += drop + tmp->m_nextToDraw->GetMaxCenter();
            if (tmp->m_bigSkip)
              in.y += MC_LINE_SKIP;
            drop = tmp->m_nextToDraw->GetMaxDrop();
          }
        }

        tmp = tmp->m_nextToDraw;
      }
    }

    parser.Outdated(false);
    MathCell *editable = GetEditable();
    if (editable != NULL && editable->IsActive()) {
      dc.SetPen( *(wxThePenList->FindOrCreatePen(parser.GetColor(TS_ACTIVE_CELL_BRACKET), 2, wxPENSTYLE_SOLID))); // window linux, set a pen
      dc.SetBrush( *(wxTheBrushList->FindOrCreateBrush(parser.GetColor(TS_ACTIVE_CELL_BRACKET)))); //highlight c.
    }
    else {
      dc.SetPen( *(wxThePenList->FindOrCreatePen(parser.GetColor(TS_CELL_BRACKET), 1, wxPENSTYLE_SOLID))); // window linux, set a pen
      dc.SetBrush( *(wxTheBrushList->FindOrCreateBrush(parser.GetColor(TS_CELL_BRACKET)))); //highlight c.
    }

    if ((!m_hide) && (!m_hiddenTree)) {
      dc.SetBrush(*wxTRANSPARENT_BRUSH);
    }
//.........这里部分代码省略.........