protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
if (!Focused)
{
Focus(); // Enable keyboard interaction
}
_lastMousePosition = e.Location;
_startPos = null;
if (!(VisibleTexture?.IsAvailable ?? false))
{
if (VisibleTexture != null)
{
EditorActions.UpdateTextureFilepath(Parent, VisibleTexture);
}
else
{
EditorActions.AddTexture(Parent);
}
return;
}
//https://stackoverflow.com/questions/14191219/receive-mouse-move-even-cursor-is-outside-control
Capture = true; // Capture mouse for zoom and panning
switch (e.Button)
{
case MouseButtons.Left:
var mousePos = FromVisualCoord(e.Location);
// Check if mouse was on existing texture
if (SelectedTexture.Texture == VisibleTexture)
{
if (_allowFreeCornerEdit)
{
var coords = SelectedTexture.TexCoords;
var sortedCoords = coords
.Where(coord => Vector2.Distance(coord, mousePos) < textureSelectionPointSelectionRadius)
.OrderBy(coord => Vector2.Distance(coord, mousePos))
.ToList();
if (sortedCoords.Count != 0)
{
// Select texture coords
_selectedTexCoordIndex = Array.FindIndex(coords, coord => coord == sortedCoords.First());
Invalidate();
break;
}
}
}
if (_selectedTexCoordIndex != null)
{
_selectedTexCoordIndex = null;
Invalidate();
}
// Start selection ...
_startPos = mousePos;
break;
case MouseButtons.Right:
// Move view with mouse cursor
// Mouse cursor is a fixed point
_viewMoveMouseTexCoord = FromVisualCoord(e.Location);
break;
}
}