/*        Formula: ((w/2) / h) = w1 / h1        w1 = ((w/2) / h) * h1;    */    double ratio = ((w/2.0) / h) ;    double w1 = ratio * h1;    points[0] = wxPoint(0  ,  (int) (- h / 2 ));    points[1] = wxPoint( (int) w1,  (int) (- h / 2 + h1));    points[2] = wxPoint( (int) -w1, (int) (- h / 2 + h1));    DrawPolygon(3, points);    delete[] points;    CalculateSize();    SetAttachmentMode(ATTACHMENT_MODE_BRANCHING);    SetBranchStyle(BRANCHING_ATTACHMENT_NORMAL|BRANCHING_ATTACHMENT_BLOB);    SetCentreResize(false);}IMPLEMENT_DYNAMIC_CLASS(csSemiCircleShape, wxDrawnShape)csSemiCircleShape::csSemiCircleShape(){    // Zero degrees    DrawAtAngle(oglDRAWN_ANGLE_0);    double w = csSTANDARD_SHAPE_WIDTH;    double h = w/2.0;    SetDrawnPen(wxTRANSPARENT_PEN);    SetDrawnBrush(wxTRANSPARENT_BRUSH);    // Draw a dummy rectangle that will be used for calculating the    // bounding box, since we can't calculate the bounding box for    // an arbitrary arc (not implemented)    DrawRectangle(wxRect((int)(-w/2.0), (int)(-h/2.0), (int)(w), (int)(h)));    SetDrawnPen(wxBLACK_PEN);    wxBrush* brush = wxTheBrushList->FindOrCreateBrush(wxColour(220, 220, 220), wxSOLID);    SetDrawnBrush(brush);    DrawEllipticArc(wxRect((int)(-w/2), (int)(-h/2), (int)(w), (int)(2*h)), 0.0, 180.0);    DrawLine(wxPoint((int)(-w/2), (int)(h/2)), wxPoint((int)(w/2), (int)(h/2)));    CalculateSize();    /// 90 degrees    w = csSTANDARD_SHAPE_WIDTH/2;    h = csSTANDARD_SHAPE_WIDTH;    DrawAtAngle(oglDRAWN_ANGLE_90);    SetDrawnPen(wxTRANSPARENT_PEN);    SetDrawnBrush(wxTRANSPARENT_BRUSH);    DrawRectangle(wxRect((int)(-w/2), (int)(-h/2), (int)(w), (int)(h)));    SetDrawnPen(wxBLACK_PEN);    SetDrawnBrush(brush);    DrawEllipticArc(wxRect((int)(-w/2 - w), (int)(-h/2), (int)(2*w), (int)(h)), 270.0, 90.0);    DrawLine(wxPoint((int)(-w/2), (int)(-h/2)), wxPoint((int)(-w/2), (int)(h/2)));    CalculateSize();    /// 180 degrees    DrawAtAngle(oglDRAWN_ANGLE_180);    w = csSTANDARD_SHAPE_WIDTH;    h = csSTANDARD_SHAPE_WIDTH/2;    SetDrawnPen(wxTRANSPARENT_PEN);    SetDrawnBrush(wxTRANSPARENT_BRUSH);    DrawRectangle(wxRect((int)(-w/2), (int)(-h/2), (int)(w), (int)(h)));    SetDrawnPen(wxBLACK_PEN);    SetDrawnBrush(brush);    DrawEllipticArc(wxRect((int)(-w/2), (int)(-h/2 - h), (int)(w), (int)(2*h)), 180.0, 0.0);    DrawLine(wxPoint((int)(-w/2), (int)(-h/2)), wxPoint((int)(w/2), (int)(-h/2)));    CalculateSize();    /// 270 degrees    DrawAtAngle(oglDRAWN_ANGLE_270);    w = csSTANDARD_SHAPE_WIDTH/2;    h = csSTANDARD_SHAPE_WIDTH;    SetDrawnPen(wxTRANSPARENT_PEN);    SetDrawnBrush(wxTRANSPARENT_BRUSH);    DrawRectangle(wxRect((int)(-w/2), (int)(-h/2), (int)(w), (int)(h)));    SetDrawnPen(wxBLACK_PEN);    SetDrawnBrush(brush);    DrawEllipticArc(wxRect((int)(-w/2), (int)(-h/2), (int)(2*w), (int)(h)), 90.0, 270.0);    DrawLine(wxPoint((int)(w/2),(int)(-h/2)), wxPoint((int)(w/2), (int)(h/2)));    CalculateSize();    // Reset to zero    DrawAtAngle(oglDRAWN_ANGLE_0);    CalculateSize();    SetAttachmentMode(ATTACHMENT_MODE_BRANCHING);    SetBranchStyle(BRANCHING_ATTACHMENT_NORMAL|BRANCHING_ATTACHMENT_BLOB);    SetCentreResize(false);}IMPLEMENT_DYNAMIC_CLASS(csCircleShape, wxCircleShape)csCircleShape::csCircleShape(){    SetPen(wxBLACK_PEN);    wxBrush* brush = wxTheBrushList->FindOrCreateBrush(wxColour(220, 220, 220), wxSOLID);    SetBrush(brush);    SetSize(csSTANDARD_SHAPE_WIDTH*0.6, csSTANDARD_SHAPE_WIDTH*0.6);    SetAttachmentMode(ATTACHMENT_MODE_BRANCHING);    SetBranchStyle(BRANCHING_ATTACHMENT_NORMAL|BRANCHING_ATTACHMENT_BLOB);    SetCentreResize(false);}IMPLEMENT_DYNAMIC_CLASS(csCircleShadowShape, wxCircleShape)csCircleShadowShape::csCircleShadowShape(){    SetPen(wxBLACK_PEN);    wxBrush* brush = wxTheBrushList->FindOrCreateBrush(wxColour(220, 220, 220), wxSOLID);    SetBrush(brush);    SetSize(csSTANDARD_SHAPE_WIDTH*0.6, csSTANDARD_SHAPE_WIDTH*0.6);    SetAttachmentMode(ATTACHMENT_MODE_BRANCHING);    SetBranchStyle(BRANCHING_ATTACHMENT_NORMAL|BRANCHING_ATTACHMENT_BLOB);    SetCentreResize(false);    SetShadowMode(SHADOW_RIGHT);}IMPLEMENT_DYNAMIC_CLASS(csOctagonShape, wxPolygonShape)csOctagonShape::csOctagonShape(){    SetPen(wxBLACK_PEN);    SetBrush(wxTheBrushList->FindOrCreateBrush(wxColour(220, 220, 220), wxSOLID));    double w = csSTANDARD_SHAPE_WIDTH*0.5;    double h = csSTANDARD_SHAPE_WIDTH*0.5;    double prop = h/3.0;    wxList* points = new wxList;    points->Append((wxObject*) new wxRealPoint(-w/2.0 + prop, -h/2.0));    points->Append((wxObject*) new wxRealPoint(w/2.0 - prop, -h/2.0));    points->Append((wxObject*) new wxRealPoint(w/2.0, -h/2.0 + prop));    points->Append((wxObject*) new wxRealPoint(w/2.0, h/2.0 - prop));    points->Append((wxObject*) new wxRealPoint(w/2.0 - prop, h/2.0));    points->Append((wxObject*) new wxRealPoint(-w/2.0 + prop, h/2.0));    points->Append((wxObject*) new wxRealPoint(-w/2.0, h/2.0 - prop));    points->Append((wxObject*) new wxRealPoint(-w/2.0, -h/2.0 + prop));    Create(points);    SetAttachmentMode(ATTACHMENT_MODE_BRANCHING);    SetBranchStyle(BRANCHING_ATTACHMENT_NORMAL|BRANCHING_ATTACHMENT_BLOB);    SetCentreResize(false);}// This is a transparent shape for drawing around other shapes.IMPLEMENT_DYNAMIC_CLASS(csGroupShape, wxRectangleShape)csGroupShape::csGroupShape(){    SetPen(wxThePenList->FindOrCreatePen(_T("BLACK"), 1, wxDOT));    SetBrush(wxTRANSPARENT_BRUSH);    SetSize(csSTANDARD_SHAPE_WIDTH, csSTANDARD_SHAPE_WIDTH);    SetCentreResize(false);}void csGroupShape::OnDraw(wxDC& dc){    wxRectangleShape::OnDraw(dc);}// Must modify the hit-test so it doesn't obscure shapes that are inside.bool csGroupShape::HitTest(double x, double y, int* attachment, double* distance){    *attachment = 0;    *distance = 0.0;    double width = 0.0, height = 0.0;    GetBoundingBoxMin(&width, &height);    double x1 = GetX() - (width/2.0);    double y1 = GetY() - (height/2.0);    double x2 = GetX() + (width/2.0);    double y2 = GetY() + (height/2.0);    double edgeTolerance = 4.0;    // Test each edge in turn    // Top/bottom edges    if (x >= x1 && x <= x2)    {        if ((y >= y1 - edgeTolerance) && (y <= y1 + edgeTolerance))            return true;        if ((y <= y2 + edgeTolerance) && (y >= y2 - edgeTolerance))            return true;    }    // Left/right edges    if (y >= y1 && y <= y2)    {        if ((x >= x1 - edgeTolerance) && (x <= x1 + edgeTolerance))            return true;        if ((x <= x2 + edgeTolerance) && (x >= x2 - edgeTolerance))            return true;    }    return false;}IMPLEMENT_DYNAMIC_CLASS(csTextBoxShape, wxRectangleShape)csTextBoxShape::csTextBoxShape(){    SetPen(wxTRANSPARENT_PEN);    SetBrush(wxTRANSPARENT_BRUSH);    SetSize(csSTANDARD_SHAPE_WIDTH, csSTANDARD_SHAPE_WIDTH/2.0);    SetAttachmentMode(ATTACHMENT_MODE_NONE);    SetBranchStyle(BRANCHING_ATTACHMENT_NORMAL|BRANCHING_ATTACHMENT_BLOB);    SetCentreResize(false);}IMPLEMENT_DYNAMIC_CLASS(csLineShape, wxLineShape)csLineShape::csLineShape(){}bool csLineShape::OnMoveMiddleControlPoint(wxDC& WXUNUSED(dc), wxLineControlPoint* lpt, const wxRealPoint& pt){    csDiagramView* view = ((csCanvas*)GetCanvas())->GetView();    // Temporarily set the new shape properties so we can copy it    lpt->SetX(pt.x); lpt->SetY(pt.y);    lpt->m_point->x = pt.x; lpt->m_point->y = pt.y;    wxLineShape* newShape = (wxLineShape*) this->CreateNewCopy();    // Now set them back again    lpt->SetX(lpt->m_originalPos.x); lpt->SetY(lpt->m_originalPos.y);    lpt->m_point->x = lpt->m_originalPos.x; lpt->m_point->y = lpt->m_originalPos.y;    view->GetDocument()->GetCommandProcessor()->Submit(new csDiagramCommand(_T("Move line point"), (csDiagramDocument*) view->GetDocument(),                new csCommandState(ID_CS_MOVE_LINE_POINT, newShape, this)));    return true;}wxLabelShape* csLineShape::OnCreateLabelShape(wxLineShape *parent, wxShapeRegion *region, double w, double h){    return new csLabelShape(parent, region, w, h);}#if 0bool csLineShape::OnLabelMovePre(wxDC& dc, wxLabelShape* labelShape, double x, double y, double old_x, double old_y, bool display){    csDiagramView* view = ((csCanvas*)GetCanvas())->GetView();    wxLineShape* newShape = (wxLineShape*) this->CreateNewCopy();    wxLineShape::OnLabelMovePre(dc, labelShape, x, y, old_x, old_y, display);    view->GetDocument()->GetCommandProcessor()->Submit(new csDiagramCommand("Move label", (csDiagramDocument*) view->GetDocument(),                new csCommandState(ID_CS_MOVE_LABEL, newShape, this)));  return true;}#endifIMPLEMENT_DYNAMIC_CLASS(csLabelShape, wxLabelShape)csLabelShape::csLabelShape(wxLineShape *parent, wxShapeRegion *region, double w, double h):  wxLabelShape(parent, region, w, h){}// TODO: not sure how intercept normal behaviour (OnMovePre) to make// label movement undo-able.void csLabelShape::OnEndDragLeft(double x, double y, int keys, int attachment){    wxLabelShape::OnEndDragLeft(x, y, keys, attachment);}// Menu for editing shapesvoid studioShapeEditProc(wxMenu& menu, wxCommandEvent& event){    wxShape* shape = (wxShape*) menu.GetClientData();    csDiagramView* view = ((csCanvas*)shape->GetCanvas())->GetView();    switch (event.GetId())    {        case ID_CS_EDIT_PROPERTIES:        {            csEvtHandler* handler1 = (csEvtHandler *)shape->GetEventHandler();            handler1->EditProperties();#if 0            csEvtHandler* handler1 = (csEvtHandler *)shape->GetEventHandler();            csLabelEditingDialog* dialog = new csLabelEditingDialog(shape->GetCanvas()->GetParent());            dialog->SetShapeLabel(handler1->m_label);            if (dialog->ShowModal() == wxID_CANCEL)            {                dialog->Destroy();                return;            }            wxString newLabel = dialog->GetShapeLabel();            dialog->Destroy();            wxShape* newShape = shape->CreateNewCopy();            csEvtHandler* handler2 = (csEvtHandler *)newShape->GetEventHandler();            handler2->m_label = newLabel;            view->GetDocument()->GetCommandProcessor()->Submit(new csDiagramCommand("Edit label", (csDiagramDocument*) view->GetDocument(),                new csCommandState(ID_CS_EDIT_LABEL, newShape, shape)));#endif            break;        }        case wxID_CUT:        {            wxList list;            list.Append(shape);            view->DoCut(list);            break;        }        case ID_CS_ROTATE_CLOCKWISE:        case ID_CS_ROTATE_ANTICLOCKWISE:        {            if (shape->IsKindOf(CLASSINFO(wxLineShape)))                break;            double theta = shape->GetRotation();            const double myPi = M_PI;            double ninetyDegrees = myPi/2.0;            wxString opStr;            if (event.GetId() == ID_CS_ROTATE_CLOCKWISE)            {                theta += ninetyDegrees;                opStr = _T("Rotate clockwise");            }            else            {                theta -= ninetyDegrees;                opStr = _T("Rotate anticlockwise");            }            if (theta >= 2.0*myPi || theta < 0.0)                theta = 0.0;            wxShape* newShape = shape->CreateNewCopy();            newShape->Rotate(0.0, 0.0, theta);            wxList newShapes;            wxList oldShapes;            newShapes.Append(newShape);            oldShapes.Append(shape);            view->DoCmd(newShapes, oldShapes, event.GetId(), opStr);            break;        }        default:            break;    }}BEGIN_EVENT_TABLE(ShapeEditMenu, wxMenu)    EVT_COMMAND_RANGE(1, 65000, wxEVT_COMMAND_MENU_SELECTED, ShapeEditMenu::OnCommand)END_EVENT_TABLE()void ShapeEditMenu::OnCommand(wxCommandEvent& event){    studioShapeEditProc(*this, event);}