private void Vertex_MouseDown(object sender, MouseEventArgs e)
{
Vertex v = (Vertex)((Control)sender).Tag;
if (add_vertex.Checked)
{
FinishedAction = true;
if (v.PreviousVertex != null || Polygons.Last().Count < 3) //wrong or not enough vertices
{
if (Polygons.Last().Contains(highlighted))
{
if (Polygons.Count > 1)
{
UpdateHighlighted(Polygons[Polygons.Count - 2][0]);
}
else
{
UpdateHighlighted(null);
}
}
foreach (var item in Polygons.Last())
{
item.PictureBox.Dispose();
}
Polygons.RemoveAt(Polygons.Count - 1);
ReloadCanvas();
return;
}
DrawLine(highlighted.PictureBox.Location.X + 4, highlighted.PictureBox.Location.Y + 4, ((Control)sender).Location.X + 4, ((Control)sender).Location.Y + 4, Color.Purple);
v.PreviousVertex = highlighted;
highlighted.NextVertex = v;
UpdateHighlighted(v);
MainCanvas.Refresh();
}
else if (delete_vertex.Checked)
{
DeleteVertex(v);
ReloadCanvas();
}
else if (move_vertex_edge.Checked)
{
MovingMode = 1;
UpdateHighlighted(v);
PrevoiusLocation = MainCanvas.PointToClient(Cursor.Position);
timer = new Timer();
timer.Interval = 10;
timer.Tick += Timer_Tick;
timer.Start();
}
}
private void MainCanvas_MouseMove(object sender, MouseEventArgs e)
{
if (EditMode == EditMode.DrawRelation)
{
mouseCurrentPoint = new Point(e.X, e.Y);
MainCanvas.Refresh();
}
else if (EditMode == EditMode.Normal)
{
var x = (int)((e.X - MainCanvas.AutoScrollPosition.X) / Zoom);
var y = (int)((e.Y - MainCanvas.AutoScrollPosition.Y) / Zoom);
if (e.Button != MouseButtons.None)
{
if (currentBoundingItem == null)
{
if (isPanning)
{
int dx = mouseDownPoint.X - e.X;
int dy = mouseDownPoint.Y - e.Y;
var newPos = new Point(mouseDownAutoscrollPoint.X + dx, mouseDownAutoscrollPoint.Y + dy);
MainCanvas.AutoScrollPosition = newPos;
Cursor = Cursors.SizeAll;
}
}
else
{
var shape = (Shape)currentBoundingItem.Target;
var args = new ShapeMouseEventArgs
{
BoundingItem = currentBoundingItem,
X = x,
Y = y,
Button = e.Button,
Sender = this,
GridSize = GridSize,
SnapToGrid = SnapToGrid
};
shape.OnMouseMove(args);
if (args.Redraw)
{
MainCanvas.Refresh();
}
}
}
else
{
for (int i = BoundingItemes.Count - 1; i >= 0; i--)
{
BoundingItem bitem = BoundingItemes[i];
if (bitem.HitTest(x, y))
{
if (bitem.Target is Shape)
{
var shape = (Shape)bitem.Target;
var args = new ShapeMouseEventArgs
{
BoundingItem = bitem, X = x, Y = y, Button = e.Button, Sender = this
};
shape.OnMouseMove(args);
if (args.Redraw)
{
MainCanvas.Refresh();
}
}
return;
}
}
}
}
}
private void MainCanvas_MouseUp(object sender, MouseEventArgs e)
{
var x = (int)((e.X - MainCanvas.AutoScrollPosition.X) / Zoom);
var y = (int)((e.Y - MainCanvas.AutoScrollPosition.Y) / Zoom);
if (EditMode == EditMode.DrawRelation)
{
relationEnd = null;
for (int i = BoundingItemes.Count - 1; i >= 0; i--)
{
BoundingItem bitem = BoundingItemes[i];
if (bitem.HitTest(x, y))
{
if (bitem.Target is Shape)
{
relationEnd = bitem.Target as Shape;
}
}
}
endDrawRelation(relationStart, relationEnd);
//end drawing
EditMode = EditMode.Normal;
MainCanvas.Refresh();
}
else if (EditMode == EditMode.Normal)
{
Cursor = Cursors.Default;
currentBoundingItem = null;
isPanning = false;
for (int i = BoundingItemes.Count - 1; i >= 0; i--)
{
BoundingItem bitem = BoundingItemes[i];
if (bitem.HitTest(x, y))
{
if (bitem.Target is Shape)
{
var shape = (Shape)bitem.Target;
var args = new ShapeMouseEventArgs
{
BoundingItem = bitem,
X = x,
Y = y,
Button = e.Button,
Sender = this,
GridSize = GridSize,
SnapToGrid = SnapToGrid
};
shape.OnMouseUp(args);
if (args.Redraw)
{
Refresh();
}
}
return;
}
}
}
}
private void MainCanvas_MouseDown(object sender, MouseEventArgs e)
{
if (add_vertex.Checked)
{
Vertex v;
if (!FinishedAction)
{
DrawLine(highlighted.PictureBox.Location.X + 4, highlighted.PictureBox.Location.Y + 4, e.X + 4, e.Y + 4, Color.Purple);
v = new Vertex(e.X, e.Y, highlighted, null, (Control)sender);
highlighted.NextVertex = v;
v.PictureBox.MouseDown += new System.Windows.Forms.MouseEventHandler(Vertex_MouseDown);
v.PictureBox.MouseUp += PictureBox_MouseUp;
Polygons.Last().Add(v);
}
else
{
if (((Bitmap)MainCanvas.Image).GetPixel(e.Location.X, e.Location.Y).ToArgb() == Color.Purple.ToArgb()) //add vertex to edge
{
int pol = DetermineEdge(e.Location);
DeleteRelation(highlighted);
v = new Vertex((highlighted.PictureBox.Location.X + highlighted.NextVertex.PictureBox.Location.X) / 2, (highlighted.PictureBox.Location.Y + highlighted.NextVertex.PictureBox.Location.Y) / 2, highlighted, highlighted.NextVertex, (Control)sender);
v.PictureBox.MouseDown += new System.Windows.Forms.MouseEventHandler(Vertex_MouseDown);
v.PictureBox.MouseUp += PictureBox_MouseUp;
highlighted.NextVertex.PreviousVertex = v;
highlighted.NextVertex = v;
Polygons[pol].Add(v);
}
else
{
v = new Vertex(e.X, e.Y, null, null, (Control)sender);
v.PictureBox.MouseDown += new System.Windows.Forms.MouseEventHandler(Vertex_MouseDown);
v.PictureBox.MouseUp += PictureBox_MouseUp;
Polygons.Add(new List <Vertex> {
v
});
FinishedAction = false;
}
}
UpdateHighlighted(v);
MainCanvas.Refresh();
}
else if (move_vertex_edge.Checked)
{
if (((Bitmap)MainCanvas.Image).GetPixel(e.Location.X, e.Location.Y).ToArgb() == MainCanvas.BackColor.ToArgb()) //not edge => moving Polygon
{
MovingMode = 3;
}
else //moving edge
{
MovingMode = 2;
DetermineEdge(e.Location);
}
PrevoiusLocation = e.Location;
timer = new Timer();
timer.Interval = 10;
timer.Tick += Timer_Tick;
timer.Start();
}
else if (parallel.Checked)
{
if (((Bitmap)MainCanvas.Image).GetPixel(e.Location.X, e.Location.Y).ToArgb() == MainCanvas.BackColor.ToArgb())
{
return;
}
Vertex temp = highlighted;
int ind = DetermineEdge(e.Location);
if (highlighted.Relation != null)
{
temp.PictureBox.BackColor = Color.Blue;
temp.NextVertex.PictureBox.BackColor = Color.Blue;
UpdateHighlighted(highlighted);
FinishedAction = true;
MessageBox.Show("Relation already set");
return;
}
if (FinishedAction) //first edge in relation
{
FinishedAction = false;
highlighted.PictureBox.BackColor = Color.Yellow;
highlighted.NextVertex.PictureBox.BackColor = Color.Yellow;
}
else//second edge in relation
{
if (temp == highlighted)
{
return;
}
if (temp.NextVertex == highlighted || highlighted.NextVertex == temp)
{
FinishedAction = true;
temp.PictureBox.BackColor = Color.Blue;
temp.NextVertex.PictureBox.BackColor = Color.Blue;
UpdateHighlighted(highlighted);
MessageBox.Show("Incidental edges cannot be parallel");
return;
}
bool already = SetParallel(temp, highlighted);
temp.Relation = new EdgeRelation(1, highlighted, temp, MainCanvas);
temp.Relation.symbol.MouseDown += Symbol_MouseDown;
highlighted.Relation = new EdgeRelation(1, temp, highlighted, MainCanvas);
highlighted.Relation.symbol.MouseDown += Symbol_MouseDown;
FinishedAction = true;
temp.PictureBox.BackColor = Color.Blue;
temp.NextVertex.PictureBox.BackColor = Color.Blue;
UpdateHighlighted(highlighted);
if (!already)
{
if (!CorrectRelations(highlighted.NextVertex, ind))
{
DeleteRelation(highlighted);
CorrectRelations(highlighted.NextVertex, ind);
ReloadCanvas();
MessageBox.Show("Relation could not be set");
}
}
ReloadCanvas();
}
}
else if (equall.Checked)
{
if (((Bitmap)MainCanvas.Image).GetPixel(e.Location.X, e.Location.Y).ToArgb() == MainCanvas.BackColor.ToArgb())
{
return;
}
Vertex temp = highlighted;
int ind = DetermineEdge(e.Location);
if (highlighted.Relation != null)
{
FinishedAction = true;
temp.PictureBox.BackColor = Color.Blue;
temp.NextVertex.PictureBox.BackColor = Color.Blue;
UpdateHighlighted(highlighted);
MessageBox.Show("Relation already set");
return;
}
if (FinishedAction) //first edge in relation
{
FinishedAction = false;
highlighted.PictureBox.BackColor = Color.Green;
highlighted.NextVertex.PictureBox.BackColor = Color.Green;
}
else//second edge in relation
{
if (temp == highlighted)
{
return;
}
bool already = SetEquall(temp, highlighted);
temp.Relation = new EdgeRelation(2, highlighted, temp, MainCanvas);
temp.Relation.symbol.MouseDown += Symbol_MouseDown;
highlighted.Relation = new EdgeRelation(2, temp, highlighted, MainCanvas);
highlighted.Relation.symbol.MouseDown += Symbol_MouseDown;
temp.PictureBox.BackColor = Color.Blue;
temp.NextVertex.PictureBox.BackColor = Color.Blue;
FinishedAction = true;
UpdateHighlighted(highlighted);
if (!already)
{
if (!CorrectRelations(highlighted.NextVertex, ind))
{
DeleteRelation(highlighted);
CorrectRelations(highlighted.NextVertex, ind);
ReloadCanvas();
MessageBox.Show("Relation could not be set");
}
}
ReloadCanvas();
}
}
else if (delete_relation.Checked)
{
if (((Bitmap)MainCanvas.Image).GetPixel(e.Location.X, e.Location.Y).ToArgb() == MainCanvas.BackColor.ToArgb())
{
return;
}
DetermineEdge(e.Location);
DeleteRelation(highlighted);
}
}
private void MainCanvas_MouseMove(object sender, MouseEventArgs e)
{
if (EditMode == EditMode.DrawRelation)
{
mouseCurrentPoint = new Point(e.X, e.Y);
MainCanvas.Refresh();
}
else if (EditMode == EditMode.Normal)
{
var x = (int)((e.X - MainCanvas.AutoScrollPosition.X) / Zoom);
var y = (int)((e.Y - MainCanvas.AutoScrollPosition.Y) / Zoom);
if (e.Button != MouseButtons.None)
{
if (currentBoundingBox == null)
{
if (isPanning)
{
int dx = mouseDownPoint.X - e.X;
int dy = mouseDownPoint.Y - e.Y;
var newPos = new Point(mouseDownAutoscrollPoint.X + dx, mouseDownAutoscrollPoint.Y + dy);
MainCanvas.AutoScrollPosition = newPos;
Cursor = Cursors.SizeAll;
}
}
else
{
var shape = (Shape)currentBoundingBox.Target;
var args = new ShapeMouseEventArgs();
args.BoundingBox = currentBoundingBox;
args.X = x;
args.Y = y;
args.Button = e.Button;
args.Sender = this;
args.GridSize = GridSize;
args.SnapToGrid = SnapToGrid;
shape.OnMouseMove(args);
if (args.Redraw)
{
MainCanvas.Refresh();
}
}
}
else
{
for (int i = BoundingBoxes.Count - 1; i >= 0; i--)
{
BoundingBox bbox = BoundingBoxes[i];
if (bbox.Bounds.Contains(x, y))
{
if (bbox.Target is Shape)
{
var shape = (Shape)bbox.Target;
var args = new ShapeMouseEventArgs();
args.BoundingBox = bbox;
args.X = x;
args.Y = y;
args.Button = e.Button;
args.Sender = this;
shape.OnMouseMove(args);
if (args.Redraw)
{
MainCanvas.Refresh();
}
}
return;
}
}
}
}
}
private void MainCanvas_MouseUp(object sender, MouseEventArgs e)
{
var x = (int)((e.X - MainCanvas.AutoScrollPosition.X) / Zoom);
var y = (int)((e.Y - MainCanvas.AutoScrollPosition.Y) / Zoom);
if (EditMode == EditMode.DrawRelation)
{
relationEnd = null;
for (int i = BoundingBoxes.Count - 1; i >= 0; i--)
{
BoundingBox bbox = BoundingBoxes[i];
if (bbox.Bounds.Contains(x, y))
{
if (bbox.Target is Shape)
{
relationEnd = bbox.Target as Shape;
}
}
}
endDrawRelation(relationStart, relationEnd);
//end drawing
EditMode = EditMode.Normal;
MainCanvas.Refresh();
}
else if (EditMode == EditMode.Normal)
{
Cursor = Cursors.Default;
currentBoundingBox = null;
isPanning = false;
for (int i = BoundingBoxes.Count - 1; i >= 0; i--)
{
BoundingBox bbox = BoundingBoxes[i];
if (bbox.Bounds.Contains(x, y))
{
if (bbox.Target is Shape)
{
var shape = (Shape)bbox.Target;
var args = new ShapeMouseEventArgs();
args.BoundingBox = bbox;
args.X = x;
args.Y = y;
args.Button = e.Button;
args.Sender = this;
args.GridSize = GridSize;
args.SnapToGrid = SnapToGrid;
shape.OnMouseUp(args);
if (args.Redraw)
{
Refresh();
}
}
return;
}
}
}
}