basic.cpp

wxGTK 是 wxWidgets 的 linux GTK+ (>2.2.3)版本。wxWidgets 是一个跨平台的 GUI 框架

  SetTextColour(m_textColourName);

  clause->GetAttributeValue(_T("region_name"), m_regionName);

  clause->GetAttributeValue(_T("brush_colour"), brush_string);
  clause->GetAttributeValue(_T("pen_width"), pen_width);
  clause->GetAttributeValue(_T("pen_style"), pen_style);
  clause->GetAttributeValue(_T("brush_style"), brush_style);

  int iVal = (int) m_attachmentMode;
  clause->GetAttributeValue(_T("use_attachments"), iVal);
  m_attachmentMode = iVal;

  clause->GetAttributeValue(_T("sensitivity"), m_sensitivity);

  iVal = (int) m_spaceAttachments;
  clause->GetAttributeValue(_T("space_attachments"), iVal);
  m_spaceAttachments = (iVal != 0);

  iVal = (int) m_fixedWidth;
  clause->GetAttributeValue(_T("fixed_width"), iVal);
  m_fixedWidth = (iVal != 0);

  iVal = (int) m_fixedHeight;
  clause->GetAttributeValue(_T("fixed_height"), iVal);
  m_fixedHeight = (iVal != 0);

  clause->GetAttributeValue(_T("format_mode"), m_formatMode);
  clause->GetAttributeValue(_T("shadow_mode"), m_shadowMode);

  iVal = m_branchNeckLength;
  clause->GetAttributeValue(_T("neck_length"), iVal);
  m_branchNeckLength = iVal;

  iVal = m_branchStemLength;
  clause->GetAttributeValue(_T("stem_length"), iVal);
  m_branchStemLength = iVal;

  iVal = m_branchSpacing;
  clause->GetAttributeValue(_T("branch_spacing"), iVal);
  m_branchSpacing = iVal;

  clause->GetAttributeValue(_T("branch_style"), m_branchStyle);

  iVal = (int) m_centreResize;
  clause->GetAttributeValue(_T("centre_resize"), iVal);
  m_centreResize = (iVal != 0);

  iVal = (int) m_maintainAspectRatio;
  clause->GetAttributeValue(_T("maintain_aspect_ratio"), iVal);
  m_maintainAspectRatio = (iVal != 0);

  iVal = (int) m_highlighted;
  clause->GetAttributeValue(_T("hilite"), iVal);
  m_highlighted = (iVal != 0);

  clause->GetAttributeValue(_T("rotation"), m_rotation);

  if (pen_string == wxEmptyString)
    pen_string = _T("BLACK");
  if (brush_string == wxEmptyString)
    brush_string = _T("WHITE");

  if (pen_string.GetChar(0) == '#')
  {
    wxColour col(oglHexToColour(pen_string.After('#')));
    m_pen = wxThePenList->FindOrCreatePen(col, pen_width, pen_style);
  }
  else
    m_pen = wxThePenList->FindOrCreatePen(pen_string, pen_width, pen_style);

  if (!m_pen)
    m_pen = wxBLACK_PEN;

  if (brush_string.GetChar(0) == '#')
  {
    wxColour col(oglHexToColour(brush_string.After('#')));
    m_brush = wxTheBrushList->FindOrCreateBrush(col, brush_style);
  }
  else
    m_brush = wxTheBrushList->FindOrCreateBrush(brush_string, brush_style);

  if (!m_brush)
    m_brush = wxWHITE_BRUSH;

  int point_size = 10;
  clause->GetAttributeValue(_T("point_size"), point_size);
  SetFont(oglMatchFont(point_size));

  // Read user-defined attachment points, if any
  wxExpr *attachmentList = clause->AttributeValue(_T("user_attachments"));
  if (attachmentList)
  {
    wxExpr *pointExpr = attachmentList->GetFirst();
    while (pointExpr)
    {
      wxExpr *idExpr = pointExpr->Nth(0);
      wxExpr *xExpr = pointExpr->Nth(1);
      wxExpr *yExpr = pointExpr->Nth(2);
      if (idExpr && xExpr && yExpr)
      {
        wxAttachmentPoint *point = new wxAttachmentPoint;
        point->m_id = (int)idExpr->IntegerValue();
        point->m_x = xExpr->RealValue();
        point->m_y = yExpr->RealValue();
        m_attachmentPoints.Append((wxObject *)point);
      }
      pointExpr = pointExpr->GetNext();
    }
  }

  // Read text regions
  ReadRegions(clause);
}

void wxShape::ReadRegions(wxExpr *clause)
{
  ClearRegions();

  // region1 = (regionName regionText x y width height minWidth minHeight proportionX proportionY
  //            formatMode fontSize fontFamily fontStyle fontWeight textColour)
  int regionNo = 1;
  wxChar regionNameBuf[20];
  wxChar textNameBuf[20];

  wxExpr *regionExpr;
  wxExpr *textExpr = NULL;
  wxSprintf(regionNameBuf, _T("region%d"), regionNo);
  wxSprintf(textNameBuf, _T("text%d"), regionNo);

  m_formatted = true;  // Assume text is formatted unless we prove otherwise

  while ((regionExpr = clause->AttributeValue(regionNameBuf)) != NULL)
  {
    /*
     * Get the region information
     *
     */

    wxString regionName = wxEmptyString;
    wxString regionText = wxEmptyString;
    double x = 0.0;
    double y = 0.0;
    double width = 0.0;
    double height = 0.0;
    double minWidth = 5.0;
    double minHeight = 5.0;
    double m_regionProportionX = -1.0;
    double m_regionProportionY = -1.0;
    int formatMode = FORMAT_NONE;
    int fontSize = 10;
    int fontFamily = wxSWISS;
    int fontStyle = wxNORMAL;
    int fontWeight = wxNORMAL;
    wxString regionTextColour = wxEmptyString;
    wxString penColour = wxEmptyString;
    int penStyle = wxSOLID;

    if (regionExpr->Type() == wxExprList)
    {
      wxExpr *nameExpr = regionExpr->Nth(0);
      wxExpr *textExpr = regionExpr->Nth(1);
      wxExpr *xExpr = regionExpr->Nth(2);
      wxExpr *yExpr = regionExpr->Nth(3);
      wxExpr *widthExpr = regionExpr->Nth(4);
      wxExpr *heightExpr = regionExpr->Nth(5);
      wxExpr *minWidthExpr = regionExpr->Nth(6);
      wxExpr *minHeightExpr = regionExpr->Nth(7);
      wxExpr *propXExpr = regionExpr->Nth(8);
      wxExpr *propYExpr = regionExpr->Nth(9);
      wxExpr *formatExpr = regionExpr->Nth(10);
      wxExpr *sizeExpr = regionExpr->Nth(11);
      wxExpr *familyExpr = regionExpr->Nth(12);
      wxExpr *styleExpr = regionExpr->Nth(13);
      wxExpr *weightExpr = regionExpr->Nth(14);
      wxExpr *colourExpr = regionExpr->Nth(15);
      wxExpr *penColourExpr = regionExpr->Nth(16);
      wxExpr *penStyleExpr = regionExpr->Nth(17);

      regionName = nameExpr->StringValue();
      regionText = textExpr->StringValue();

      x = xExpr->RealValue();
      y = yExpr->RealValue();

      width = widthExpr->RealValue();
      height = heightExpr->RealValue();

      minWidth = minWidthExpr->RealValue();
      minHeight = minHeightExpr->RealValue();

      m_regionProportionX = propXExpr->RealValue();
      m_regionProportionY = propYExpr->RealValue();

      formatMode = (int) formatExpr->IntegerValue();
      fontSize = (int)sizeExpr->IntegerValue();
      fontFamily = (int)familyExpr->IntegerValue();
      fontStyle = (int)styleExpr->IntegerValue();
      fontWeight = (int)weightExpr->IntegerValue();

      if (colourExpr)
      {
        regionTextColour = colourExpr->StringValue();
      }
      else
        regionTextColour = _T("BLACK");

      if (penColourExpr)
        penColour = penColourExpr->StringValue();
      if (penStyleExpr)
        penStyle = (int)penStyleExpr->IntegerValue();
    }
    wxFont *font = wxTheFontList->FindOrCreateFont(fontSize, fontFamily, fontStyle, fontWeight);

    wxShapeRegion *region = new wxShapeRegion;
    region->SetProportions(m_regionProportionX, m_regionProportionY);
    region->SetFont(font);
    region->SetSize(width, height);
    region->SetPosition(x, y);
    region->SetMinSize(minWidth, minHeight);
    region->SetFormatMode(formatMode);
    region->SetPenStyle(penStyle);
    if (penColour != wxEmptyString)
      region->SetPenColour(penColour);

    region->m_textColour = regionTextColour;
    region->m_regionText = regionText;
    region->m_regionName = regionName;

    m_regions.Append(region);

    /*
     * Get the formatted text strings
     *
     */
    textExpr = clause->AttributeValue(textNameBuf);
    if (textExpr && (textExpr->Type() == wxExprList))
    {
      wxExpr *node = textExpr->value.first;
      while (node)
      {
        wxExpr *string_expr = node;
        double the_x = 0.0;
        double the_y = 0.0;
        wxString the_string = wxEmptyString;

        // string_expr can either be a string, or a list of
        // 3 elements: x, y, and string.
        if (string_expr->Type() == wxExprString)
        {
          the_string = string_expr->StringValue();
          m_formatted = false;
        }
        else if (string_expr->Type() == wxExprList)
        {
          wxExpr *first = string_expr->value.first;
          wxExpr *second = first ? first->next : (wxExpr*) NULL;
          wxExpr *third = second ? second->next : (wxExpr*) NULL;

          if (first && second && third &&
              (first->Type() == wxExprReal || first->Type() == wxExprInteger) &&
              (second->Type() == wxExprReal || second->Type() == wxExprInteger) &&
              third->Type() == wxExprString)
          {
            if (first->Type() == wxExprReal)
              the_x = first->RealValue();
            else the_x = (double)first->IntegerValue();

            if (second->Type() == wxExprReal)
              the_y = second->RealValue();
            else the_y = (double)second->IntegerValue();

            the_string = third->StringValue();
          }
        }
        if (the_string)
        {
          wxShapeTextLine *line =
              new wxShapeTextLine(the_x, the_y, the_string);
          region->m_formattedText.Append(line);
        }
        node = node->next;
      }
    }

    regionNo ++;
    wxSprintf(regionNameBuf, _T("region%d"), regionNo);
    wxSprintf(textNameBuf, _T("text%d"), regionNo);
  }

  // Compatibility: check for no regions (old file).
  // Lines and divided rectangles must deal with this compatibility
  // theirselves. Composites _may_ not have any regions anyway.
  if ((m_regions.GetCount() == 0) &&
      !this->IsKindOf(CLASSINFO(wxLineShape)) && !this->IsKindOf(CLASSINFO(wxDividedShape)) &&
      !this->IsKindOf(CLASSINFO(wxCompositeShape)))
  {
    wxShapeRegion *newRegion = new wxShapeRegion;
    newRegion->SetName(_T("0"));
    m_regions.Append((wxObject *)newRegion);
    if (m_text.GetCount() > 0)
    {
      newRegion->ClearText();
      wxNode *node = m_text.GetFirst();
      while (node)
      {
        wxShapeTextLine *textLine = (wxShapeTextLine *)node->GetData();
        wxNode *next = node->GetNext();
        newRegion->GetFormattedText().Append((wxObject *)textLine);
        delete node;
        node = next;
      }
    }
  }
}

#endif

void wxShape::Copy(wxShape& copy)
{
  copy.m_id = m_id;
  copy.m_xpos = m_xpos;
  copy.m_ypos = m_ypos;
  copy.m_pen = m_pen;
  copy.m_brush = m_brush;
  copy.m_textColour = m_textColour;
  copy.m_centreResize = m_centreResize;
  copy.m_maintainAspectRatio = m_maintainAspectRatio;
  copy.m_attachmentMode = m_attachmentMode;
  copy.m_spaceAttachments = m_spaceAttachments;
  copy.m_highlighted = m_highlighted;
  copy.m_rotation = m_rotation;
  copy.m_textColourName = m_textColourName;
  copy.m_regionName = m_regionName;

  copy.m_sensitivity = m_sensitivity;
  copy.m_draggable = m_draggable;
  copy.m_fixedWidth = m_fixedWidth;
  copy.m_fixedHeight = m_fixedHeight;
  copy.m_formatMode = m_formatMode;
  copy.m_drawHandles = m_drawHandles;

  copy.m_visible = m_visible;
  copy.m_shadowMode = m_shadowMode;
  copy.m_shadowOffsetX = m_shadowOffsetX;
  copy.m_shadowOffsetY = m_shadowOffsetY;
  copy.m_shadowBrush = m_shadowBrush;

  copy.m_branchNeckLength = m_branchNeckLength;
  copy.m_branchStemLength = m_branchStemLength;
  copy.m_branchSpacing = m_branchSpacing;

  // Copy text regions
  copy.ClearRegions();
  wxNode *node = m_regions.GetFirst();
  while (node)
  {
    wxShapeRegion *region = (wxShapeRegion *)node->GetData();
    wxShapeRegion *newRegion = new wxShapeRegion(*region);
    copy.m_regions.Append(newRegion);
    node = node->GetNext();
  }

  // Copy attachments
  copy.ClearAttachments();
  node = m_attachmentPoints.GetFirst();
  while (node)
  {
    wxAttachmentPoint *point = (wxAttachmentPoint *)node->GetData();
    wxAttachmentPoint *newPoint = new wxAttachmentPoint;
    newPoint->m_id = point->m_id;
    newPoint->m_x = point->m_x;
    newPoint->m_y = point->m_y;
    copy.m_attachmentPoints.Append((wxObject *)newPoint);
    node = node->GetNext();
  }

  // Copy lines
  copy.m_lines.Clear();
  node = m_lines.GetFirst();
  while (node)
  {
    wxLineShape* line = (wxLineShape*) node->GetData();
    copy.m_lines.Append(line);
    node = node->GetNext();
  }
}

// Create and return a new, fully copied object.
wxShape *wxShape::CreateNewCopy(bool resetMapping, bool recompute)
{
  if (resetMapping)
    oglObjectCopyMapping.Clear();

  wxShape* newObject = (wxShape*) GetClassInfo()->CreateObject();

  wxASSERT( (newObject != NULL) );
  wxASSERT( (newObject->IsKindOf(CLASSINFO(wxShape))) );

  Copy(*newObject);

  if (GetEventHandler() != this)
  {
    wxShapeEvtHandler* newHandler = GetEventHandler()->CreateNewCopy();
    newObject->SetEventHandler(newHandler);
    newObject->SetPreviousHandler(NULL);
    newHandler->SetPreviousHandler(newObject);
    newHandler->SetShape(newObject);
  }

  if (recompute)
    newObject->Recompute();
  return newObject;
}

// Does the copying for this object, including copying event
// handler data if any. Calls the virtual Copy function.
void wxShape::CopyWithHandler(wxShape& copy)
{
    Copy(copy);

    if (GetEventHandler() != this)
    {
        wxASSERT( copy.GetEventHandler() != NULL );
        wxASSERT( copy.GetEventHandler() != (&copy) );
        wxASSERT( GetEventHandler()->GetClassInfo() == copy.GetEventHandler()->GetClassInfo() );
        GetEventHandler()->CopyData(* (copy.GetEventHandler()));
    }
}


// Default - make 6 control points
void wxShape::MakeControlPoints()
{
  double maxX, maxY, minX, minY;

  GetBoundingBoxMax(&maxX, &maxY);
  GetBoundingBoxMin(&minX, &minY);

  double widthMin = (double)(minX + CONTROL_POINT_SIZE + 2);
  double heightMin = (double)(minY + CONTROL_POINT_SIZE + 2);

  // Offsets from main object
  double top = (double)(- (heightMin / 2.0));
  double bottom = (double)(heightMin / 2.0 + (maxY - minY));
  double left = (double)(- (widthMin / 2.0));
  double right = (double)(widthMin / 2.0 + (maxX - minX));

  wxControlPoint *control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, left, top,
                                           CONTROL_POINT_DIAGONAL);
  m_canvas->AddShape(control);
  m_controlPoints.Append(control);

  control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, 0, top,
                                           CONTROL_POINT_VERTICAL);
  m_canvas->AddShape(control);
  m_controlPoints.Append(control);

  control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, top,
                                           CONTROL_POINT_DIAGONAL);
  m_canvas->AddShape(control);
  m_controlPoints.Append(control);

  control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, 0,
                                           CONTROL_POINT_HORIZONTAL);
  m_canvas->AddShape(control);
  m_controlPoints.Append(control);

  control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, right, bottom,
                                           CONTROL_POINT_DIAGONAL);
  m_canvas->AddShape(control);
  m_controlPoints.Append(control);

  control = new wxControlPoint(m_canvas, this, CONTROL_POINT_SIZE, 0, bottom,
                                           CONTROL_POINT_VERTICAL);
  m_canvas->AddShape(control);
  m_controlPoints.Append(control);

  control = new