private void StartDrawingPolygon(object sender, EventArgs e)
{
DetachInputHandlerEventsFromDrawingArea();
IPolygon polygonUnderCreation = new Polygon(new List <Vertice>(), new List <Edge>());
polygonUnderCreation.AddVertice(new Vertice(), null, null);
polygons.Add(polygonUnderCreation);
inputHandler = new InputHandlerForPolygonCreation
{
OnSuccessfullElementMove = drawingArea.Refresh,
OnVerticeAdd = drawingArea.Refresh,
OnFinishedDrawing = StopDrawingPolygon,
PolygonUnderCreation = polygonUnderCreation
};
AttachInputHandlerEventsToDrawingArea();
UpdateButtons();
foreach (var button in CreateGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = false;
}
StopDrawingButton.Enabled = true;
drawingArea.Refresh();
FakeButton.Focus();
}
private void UpdateButtons()
{
if (inputHandler.SelectedElement is Vertice v)
{
foreach (var button in EditEdgeGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = false;
}
foreach (var button in EditVerticeGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = true;
}
foreach (var button in EditPolygonGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = true;
}
}
else if (inputHandler.SelectedElement is Edge e)
{
foreach (var button in EditVerticeGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = false;
}
foreach (var button in EditPolygonGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = true;
}
ChangeLengthButton.Enabled = e.Type != EdgeType.FixedLength ? false : true;
RemoveConstraintsButton.Enabled = e.Type == EdgeType.Normal ? false : true;
MakeFixedLengthButton.Enabled = e.Type == EdgeType.FixedLength ? false : true;
MakeHorizontalButton.Enabled = e.Type == EdgeType.Horizontal ? false : true;
MakeVerticalButton.Enabled = e.Type == EdgeType.Vertical ? false : true;
SplitButton.Enabled = true;
}
else
{
foreach (var button in EditEdgeGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = false;
}
foreach (var button in EditVerticeGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = false;
}
foreach (var button in EditPolygonGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = false;
}
}
foreach (var button in CreateGroupBox.FindAllChildrenByType <Button>())
{
button.Enabled = true;
}
StopDrawingButton.Enabled = false;
}