/// <summary>
/// Adiciona um Join visual ao Editor
/// </summary>
/// <param name="join"></param>
void AddVisualJoin(Join join)
{
_query.Joins.Add(join);
VisualJoin _visualObject = new VisualJoin();
_visualObject.Top = 10;
_visualObject.Left = 10;
_visualObject.Join = join;
_visualObject.JoinChanged += new JoinEventHandler(visualJoin_JoinChanged);
_visualObject.JoinDeleted += new JoinEventHandler(visualJoin_JoinDeleted);
_visualObject.TableLeft = _visualTables[join.Left.Table.FullName];
_visualObject.TableRight = _visualTables[join.Right.Table.FullName];
_visualJoins.Add(_visualObject);
this.splitContainerWork.Panel1.Controls.Add(_visualObject);
}
/// <summary>
/// Desenha o Join na Área de Edição
/// </summary>
/// <param name="e">Argumento de Desenho. Ponteiro para o pintor do Windows</param>
/// <param name="visualJoin">Elemento visual do Join</param>
/// <param name="leftPoint">Ponto que indica Onde se encontra a tabela a esquerda</param>
/// <param name="leftSize">Largura e Altura do Objeto a esquerda</param>
/// <param name="rightPoint">Ponto que indica Onde se encontra a tabela a direita</param>
/// <param name="rightSize">Largura e Altura do Objeto a esquerda</param>
private void DrawJoin(PaintEventArgs e, VisualJoin visualJoin, Point leftPoint, Size leftSize, Point rightPoint, Size rightSize)
{
// Caneta para desenhas as linhas.
Pen bluePen = new Pen(Color.Blue, 2);
Point _leftLineStart;
Point _leftLineEnd;
Point _rightLineStart;
Point _rightLineEnd;
Point _linkTopLineStart;
Point _linkTopLineEnd;
Point _linkBottonLineStart;
Point _linkBottonLineEnd;
bool _twoByLeft = false;
// Verifica se a conexão vai acontecer toda pela esquerda. caso em que tabela da direita está antes da tabela da esquerda
if (leftPoint.X + leftSize.Width > rightPoint.X)
{
_twoByLeft = true;
_leftLineStart = new Point(leftPoint.X - 80, leftPoint.Y);
_leftLineEnd = leftPoint;
_rightLineStart = new Point(_leftLineStart.X, rightPoint.Y);
_rightLineEnd = rightPoint;
if (leftPoint.Y < rightPoint.Y)
{
_linkTopLineStart = _leftLineStart;
_linkTopLineEnd = _rightLineStart;
}
else
{
_linkTopLineStart = _rightLineStart;
_linkTopLineEnd = _leftLineStart;
}
}
else
{
_leftLineStart = new Point(leftPoint.X + leftSize.Width, leftPoint.Y);
_rightLineEnd = rightPoint;
int _midle = (_leftLineStart.X + _rightLineEnd.X) / 2;
_leftLineEnd = new Point(_midle, _leftLineStart.Y);
_rightLineStart = new Point(_midle, _rightLineEnd.Y);
if (leftPoint.Y < rightPoint.Y)
{
_linkTopLineStart = _leftLineEnd;
_linkTopLineEnd = _rightLineStart;
}
else
{
_linkTopLineStart = _rightLineStart;
_linkTopLineEnd = _leftLineEnd;
}
}
Point _joinPosition = new Point(((_linkTopLineStart.X + _linkTopLineEnd.X) / 2) - visualJoin.UnitHeight / 2,
((_linkTopLineStart.Y + _linkTopLineEnd.Y) / 2) - visualJoin.UnitHeight / 2);
if (_joinPosition != visualJoin.Location)
{
visualJoin.Location = _joinPosition;
}
_linkBottonLineEnd = _linkTopLineEnd;
_linkTopLineEnd.Y = visualJoin.Top;
_linkBottonLineStart = new Point(_linkTopLineEnd.X, visualJoin.Top + visualJoin.Height);
bool _midleLine = true;
if (_twoByLeft)
{
if (_leftLineStart.Y > visualJoin.Top && _leftLineStart.Y < visualJoin.Top + visualJoin.Height)
{
_leftLineStart.X = visualJoin.Left + visualJoin.Width;
_rightLineStart.X = visualJoin.Left + visualJoin.Width;
_midleLine = false;
}
}
else
{
if (_leftLineStart.Y > visualJoin.Top && _leftLineStart.Y < visualJoin.Top + visualJoin.Height)
{
_leftLineEnd.X = visualJoin.Left;
_rightLineStart.X = visualJoin.Left + visualJoin.Width;
_midleLine = false;
}
}
if (_twoByLeft)
{
e.Graphics.DrawLine(bluePen, new PointF(_leftLineStart.X, _leftLineStart.Y), new PointF(_leftLineEnd.X, _leftLineEnd.Y));
if (_midleLine)
{
e.Graphics.DrawLine(bluePen, new PointF(_linkTopLineStart.X, _linkTopLineStart.Y), new PointF(_linkTopLineEnd.X, _linkTopLineEnd.Y));
e.Graphics.DrawLine(bluePen, new PointF(_linkBottonLineStart.X, _linkBottonLineStart.Y), new PointF(_linkBottonLineEnd.X, _linkBottonLineEnd.Y));
}
e.Graphics.DrawLine(bluePen, new PointF(_rightLineStart.X, _rightLineStart.Y), new PointF(_rightLineEnd.X, _rightLineEnd.Y));
}
else
{
e.Graphics.DrawLine(bluePen, new PointF(_leftLineStart.X, _leftLineStart.Y), new PointF(_rightLineEnd.X, _rightLineEnd.Y));
}
}