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//////////////////////////////////////////////////////////////////////////
//
// pgAdmin III - PostgreSQL Tools
//
// Copyright (C) 2002 - 2014, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
// ddRelationshipTerminal.cpp - Draw inverse arrows at fk terminal based on kind of relationship.
//
//////////////////////////////////////////////////////////////////////////
#include "pgAdmin3.h"
// wxWindows headers
#include <wx/wx.h>
#include <wx/dcbuffer.h>
// App headers
#include "dd/dditems/figures/ddRelationshipTerminal.h"
#include "hotdraw/utilities/hdPoint.h"
#include "hotdraw/utilities/hdRect.h"
#include "hotdraw/main/hdDrawingView.h"
#include "hotdraw/utilities/hdGeometry.h"
ddRelationshipTerminal::ddRelationshipTerminal(ddRelationshipFigure *owner, bool endFigureTerminal)
{
ownerFigure = owner;
endTerminal = endFigureTerminal;
}
ddRelationshipTerminal::~ddRelationshipTerminal()
{
}
hdPoint &ddRelationshipTerminal::draw (wxBufferedDC &context, hdPoint &a, hdPoint &b, hdDrawingView *view)
{
hdGeometry g;
hdPoint points[3];
context.SetPen(terminalLinePen);
hdPoint aCopy = a, bCopy = b;
view->CalcScrolledPosition(aCopy.x, aCopy.y, &aCopy.x, &aCopy.y);
view->CalcScrolledPosition(bCopy.x, bCopy.y, &bCopy.x, &bCopy.y);
if(endTerminal)
{
//Calc a point very far away of center of table to intersect one of the sides lines of the table rectangle figure
double X = aCopy.x + (bCopy.x - aCopy.x) * 0.9;
double Y = aCopy.y + (bCopy.y - aCopy.y) * 0.9;
if(ownerFigure->getEndFigure() && ownerFigure->getOneToMany())
{
hdRect r = ownerFigure->getEndFigure()->displayBox().gethdRect(view->getIdx());
view->CalcScrolledPosition(r.x, r.y, &r.x, &r.y);
int centerX = r.x + r.width / 2;
int centerY = r.y + r.height / 2;
context.SetPen(*wxBLACK_PEN);
context.SetBrush(*wxBLACK_BRUSH);
double XX, YY, distance;
//Calculate a new point to a given distance from the end of the relationship to draw many ( ----<| ) connector
//first calculate vector from point1 & point2
double vectorx = aCopy.x - bCopy.x;
double vectory = aCopy.y - bCopy.y;
//calculate the length
double length = sqrt(vectorx * vectorx + vectory * vectory);
//normalize the vector to unit length
double normalizevx = vectorx / length;
double normalizevy = vectory / length;
distance = -15;
//calculate point a given distance
XX = bCopy.x + normalizevx * (length + distance);
YY = bCopy.y + normalizevy * (length + distance);
wxPoint intersectionLine1(centerX, centerY);
wxPoint intersectionLine2(X, Y);
//TOP
if(g.intersection(intersectionLine1, intersectionLine2, r.GetTopLeft(), r.GetTopRight()))
{
points[0] = wxPoint(XX, YY);
points[1] = wxPoint(aCopy.x - 7, aCopy.y);
points[2] = wxPoint(aCopy.x + 7, aCopy.y);
context.DrawPolygon(3, points);
if(ownerFigure->getIdentifying())
{
context.SetPen(wxPen(*wxBLACK, 2));
context.DrawLine(wxPoint(XX - 7, YY), wxPoint(XX + 7, YY));
context.SetPen(*wxBLACK_PEN);
}
} //RIGHT
else if(g.intersection(intersectionLine1, intersectionLine2, r.GetTopRight(), r.GetBottomRight()))
{
points[0] = wxPoint(XX, YY);
points[1] = wxPoint(aCopy.x, aCopy.y - 7);
points[2] = wxPoint(aCopy.x, aCopy.y + 7);
context.DrawPolygon(3, points);
if(ownerFigure->getIdentifying())
{
context.SetPen(wxPen(*wxBLACK, 2));
context.DrawLine(wxPoint(XX, YY - 7), wxPoint(XX, YY + 7));
context.SetPen(*wxBLACK_PEN);
}
} //BOTTOM
else if(g.intersection(intersectionLine1, intersectionLine2, r.GetBottomLeft(), r.GetBottomRight()))
{
points[0] = wxPoint(XX, YY);
points[1] = wxPoint(aCopy.x - 7, aCopy.y);
points[2] = wxPoint(aCopy.x + 7, aCopy.y);
context.DrawPolygon(3, points);
if(ownerFigure->getIdentifying())
{
context.SetPen(wxPen(*wxBLACK, 2));
context.DrawLine(wxPoint(XX - 7, YY), wxPoint(XX + 7, YY));
context.SetPen(*wxBLACK_PEN);
}
} //LEFT
else if(g.intersection(intersectionLine1, intersectionLine2, r.GetTopLeft(), r.GetBottomLeft()))
{
points[0] = wxPoint(XX, YY);
points[1] = wxPoint(aCopy.x, aCopy.y - 7);
points[2] = wxPoint(aCopy.x, aCopy.y + 7);
context.DrawPolygon(3, points);
if(ownerFigure->getIdentifying())
{
context.SetPen(wxPen(*wxBLACK, 2));
context.DrawLine(wxPoint(XX, YY - 7), wxPoint(XX, YY + 7));
context.SetPen(*wxBLACK_PEN);
}
}
else
{
//CENTER of star figure or invalid place, do nothing
}
value = hdPoint(XX, YY);
return value;
}
value = hdPoint(0, 0);
return value;
}
value = hdPoint(0, 0);
return value;
}
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