private void RelationBoxHide()
{
selectedRelationEdgeVertex = null;
RelationGroupBox.Visible = false;
OnChangingToEmptyRelation();
RelationGroupBox.Invalidate();
}
// Relations ---------------------------------------------------------------------------------
private void ChooseRelation(Type chosenRelationType)
{
selectedRelationType = chosenRelationType;
OnRelationBoxShow();
if (selectedRelationEdgeVertex.IsInParentRelation())
{
if (contextMenuStrip1.Items[0].Enabled)
{
NegateContextMenuItemsEnabled();
}
deleteRelationButton.Enabled = true;
if (selectedRelationEdgeVertex.ParentRelation.GetType() != selectedRelationType)
{
SwapRelationsForSelected();
}
}
else
{
chooseRelationEdgeLabel.Visible = true;
}
RelationGroupBox.Invalidate();
bitMap.Invalidate();
}
private void BitMap_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
centreXTextBox.Text = e.X.ToString();
centreYTextBox.Text = e.Y.ToString();
if (currentPolygon == null)
{
AddNewPolygon(e.Location);
bitMap.Invalidate();
}
else if (inAddPolygonMode)
{
var vertex = GetVertexAtPosition(e.Location);
if (vertex == null)
{
var newVertex = new Vertex(e.Location, currentPolygon.Last.Value);
currentPolygon.Last.Value.next = newVertex;
currentPolygon.AddLast(newVertex);
bitMap.Invalidate();
}
else if (currentPolygon.Count >= 3 && vertex.prev == null)
{
vertex.prev = currentPolygon.Last.Value;
currentPolygon.Last.Value.next = vertex;
ReverseIfNotClockwise();
TurnOffAddPolygonMode();
}
}
}
else if (e.Button == MouseButtons.Right && Control.ModifierKeys == Keys.Control && currentPolygon != null)
{
Vertex edgeVertex = GetEdgeVertex(e.Location, 2 * eps)?.Value;
bool gotTwoDifferentEdges = selectedRelationEdgeVertex != null && edgeVertex != null &&
selectedRelationEdgeVertex != edgeVertex;
bool inChoosingEdgeMode = gotTwoDifferentEdges && chooseRelationEdgeLabel.Visible;
if (inChoosingEdgeMode && !edgeVertex.IsInParentRelation())
{
// Adding new relation
AddRelationForSelected(v1: selectedRelationEdgeVertex, v3: edgeVertex);
RelationBoxHide();
RelationGroupBox.Invalidate();
bitMap.Invalidate();
}
else if (inChoosingEdgeMode)
{
MessageBox.Show("Nie możesz dodać dwóch relacji dla jednej krawędzi", "Błąd",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
if (gotTwoDifferentEdges) // We are swaping from existent relation to not null edge
{
OnChangingToEmptyRelation();
}
selectedRelationEdgeVertex = edgeVertex;
if (selectedRelationEdgeVertex != null)
{
RelationGroupBox.Visible = true;
if (selectedRelationEdgeVertex.IsInParentRelation())
{
ChooseRelation(selectedRelationEdgeVertex.ParentRelation.GetType());
}
else
{
OnRelationBoxShow();
RelationGroupBox.Invalidate();
bitMap.Invalidate();
}
contextMenuStrip1.Show(bitMap, e.Location);
}
else if (RelationGroupBox.Visible)
{
RelationBoxHide();
bitMap.Invalidate();
}
}
}
else if (e.Button == MouseButtons.Right && Control.ModifierKeys == Keys.Shift)
{
selectedVertex = GetVertexAtPosition(e.Location);
if (selectedVertex != null)
{
mouseDownUpAttach(false);
contextMenuStrip2.Show(bitMap, e.Location);
unlockToolStripMenuItem.Enabled = selectedVertex.Locked;
lockToolStripMenuItem.Enabled = !selectedVertex.Locked;
bitMap.Invalidate();
}
}
}
