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 DeleteSelectedPolygon(object sender, EventArgs e)
{
if (inputHandler.SelectedPolygon != null)
{
polygons.Remove(inputHandler.SelectedPolygon);
inputHandler.ClearSelected();
FakeButton.Focus();
drawingArea.Refresh();
}
}
private void SplitSelectedEdge(object sender, EventArgs e)
{
if (inputHandler.SelectedElement is Edge selectedEdge)
{
inputHandler.SelectedPolygon.SplitEdge(selectedEdge);
inputHandler.ClearSelected();
drawingArea.Refresh();
}
FakeButton.Focus();
}
private void ChangeCurrentPolygonToConvexHull(object sender, EventArgs e)
{
if (inputHandler.SelectedPolygon != null)
{
IPolygon polygonToChange = inputHandler.SelectedPolygon;
IPolygon convexHull = ConvexHullOfPolygon.GetConvexHull(polygonToChange);
if (convexHull != null)
{
polygons.Remove(polygonToChange);
polygons.Add(convexHull);
}
inputHandler.ClearSelected();
drawingArea.Refresh();
}
FakeButton.Focus();
}
private void DeleteSelectedVertice(object sender, EventArgs e)
{
if (inputHandler.SelectedElement is Vertice v)
{
if (inputHandler.SelectedPolygon.DeleteVertice(v))
{
inputHandler.ClearSelected();
drawingArea.Refresh();
}
else
{
InformationDialog.Show(ErrorMessages.CanNotDeleteVertice);
}
}
FakeButton.Focus();
}
private void StopDrawingPolygon()
{
FakeButton.Focus();
IPolygon polygonUnderCreation = polygons.Last();
if (polygonUnderCreation.Vertices.Count <= 3)
{
InformationDialog.Show(ErrorMessages.PolygonMustHaveAtLeastThreeVertices);
return;
}
DetachInputHandlerEventsFromDrawingArea();
polygonUnderCreation.DeleteVertice(polygonUnderCreation.Vertices.Last());
polygonUnderCreation.CreateEdgeBetweenVertices(polygonUnderCreation.Vertices.First(), polygonUnderCreation.Vertices.Last());
inputHandler = GetStandardInputHandler();
AttachInputHandlerEventsToDrawingArea();
UpdateButtons();
drawingArea.Refresh();
}
private void ChangeSelectedEdgeToVertical(object sender, EventArgs e)
{
HandleSimpleEdgeTypeChange(EdgeType.Vertical, -1, string.Format(ErrorMessages.CanNotChangeEdgeType, EdgeType.Vertical.Name));
FakeButton.Focus();
}
private void CreateCustomPolygon(object sender, EventArgs e)
{
polygons.Add(PolygonCreator.GetCustom());
FakeButton.Focus();
drawingArea.Refresh();
}
private void CreateRectangle(object sender, EventArgs e)
{
polygons.Add(PolygonCreator.GetSampleRectangle());
FakeButton.Focus();
drawingArea.Refresh();
}
private void ChangeSelectedEdgeLength(object sender, EventArgs e)
{
HandleChangingEdgeLengthOrTypeToFixedLenght(string.Format(ErrorMessages.CanNotChangeEdgeLenght, EdgeType.FixedLength.Name));
FakeButton.Focus();
}
private void RemoveConstraintsFromSelectedEdge(object sender, EventArgs e)
{
HandleSimpleEdgeTypeChange(EdgeType.Normal, -1, string.Format(ErrorMessages.CanNotChangeEdgeType, EdgeType.Normal.Name));
FakeButton.Focus();
}
