private void RenderPreview(ComboBoxEdit imageComboBox, CardinalityShape cardi)
{
switch (imageComboBox.EditValue.ToString())
{
case "0, 1": cardi.setValue(0, 1);
break;
case "1, 1": cardi.setValue(1, 1);
break;
case "0, n": cardi.setValue(0, -1);
break;
case "1, n": cardi.setValue(1, -1);
break;
}
panelDoubleBuffered1.Refresh();
}
public static void DrawCardinalitiesLine(Graphics g, CardinalityShape cardi, int EntityEdgeCardiPlace, int pos, int numCardi, Color backgroundColor)
{
EntityShape entity = cardi.Entity;
RelationshipShape rel = cardi.Relationship;
//debug
//g.DrawLine(new Pen(Color.Red, 1), entity.CenterPoint, rel.CenterPoint);
Point centerRelationship = rel.CenterPoint;
Point centerEntity = entity.CenterPoint;
Point TopLeft = entity.Location;
Point BottomRight = new Point(entity.Location.X + entity.Width, entity.Location.Y + entity.Height);
int stepX = pos * entity.Width / (numCardi + 1);
int stepY = pos * entity.Height / (numCardi + 1);
Bitmap myCardi = GetCardinalitiesShape(cardi, EntityEdgeCardiPlace, backgroundColor);
Point EntityStartPos = getStartPos(EntityEdgeCardiPlace, (ShapeBase)entity, TopLeft, BottomRight, stepX, stepY, myCardi);
Point EntityCardiPos = getCardiPos(EntityEdgeCardiPlace, (ShapeBase)entity, TopLeft, BottomRight, stepX, stepY, myCardi);
if (rel.type != RelationshipType.AssociativeEntity)
{
g.DrawImage(myCardi, EntityCardiPos);
g.DrawLine(ThongSo.ConectiveLinePen, EntityStartPos, centerRelationship);
}
else //nếu relationship là Associative Entity
{
Point TopLeftRel = rel.Location;
Point BottomRightRel = new Point(rel.Location.X + rel.Width, rel.Location.Y + rel.Height);
int AssEdgeCardiPlace = 0, index = 0;
rel.getCardiPosition(cardi, ref AssEdgeCardiPlace, ref index);
int stepXRel = (index + 1) * rel.Width / (rel.cardiplaces[AssEdgeCardiPlace - 1].Count + 1);
int stepYRel = (index + 1) * rel.Height / (rel.cardiplaces[AssEdgeCardiPlace - 1].Count + 1);
//cardi 1, 1
CardinalityShape cardi1 = new CardinalityShape();
cardi1.setValue(1, 1);
//lấy cardi của đầu bên kia Relationship
CardinalityShape cardi2 = new CardinalityShape();
foreach (CardinalityShape card in cardi.Relationship.cardinalities)
{
if (card != cardi)
{
cardi2 = card;
}
}
Bitmap CardiAtEn = GetCardinalitiesShape(cardi1, EntityEdgeCardiPlace, backgroundColor);
Bitmap CardiAtRel = GetCardinalitiesShape(cardi2, AssEdgeCardiPlace, backgroundColor);
Point AssStartPos = getStartPos(AssEdgeCardiPlace, (ShapeBase)rel, TopLeftRel, BottomRightRel, stepXRel, stepYRel, CardiAtRel);
Point AssCardiPos = getCardiPos(AssEdgeCardiPlace, (ShapeBase)rel, TopLeftRel, BottomRightRel, stepXRel, stepYRel, CardiAtRel);
g.DrawImage(CardiAtEn, EntityCardiPos);
g.DrawImage(CardiAtRel, AssCardiPos);
g.DrawLine(ThongSo.ConectiveLinePen, EntityStartPos, AssStartPos);
}
}