private void TileViewer_MouseDown(object sender, MouseButtonEventArgs e)
{
if (!mouseOver)
{
return;
}
mouseDown = true;
Point p = e.GetPosition(MainGrid);
ClickX = p.X / TileSize;
ClickY = p.Y / TileSize;
TileClickX = Convert.ToInt32(Math.Floor(ClickX));
TileClickY = Convert.ToInt32(Math.Floor(ClickY));
if (TileClickX < 0)
{
TileClickX = 0;
}
if (TileClickX >= ColCount)
{
TileClickX = ColCount;
}
if (TileClickY < 0)
{
TileClickY = 0;
}
if (TileClickY >= RowCount)
{
TileClickY = RowCount;
}
if (e.ChangedButton == MouseButton.Middle)
{
if (Parent != null)
{
Point q = e.GetPosition(Parent);
PanningOriginX = Parent.HorizontalOffset;
PanningOriginY = Parent.VerticalOffset;
PanningStartX = q.X;
PanningStartY = q.Y;
panning = true;
}
return;
}
var a = new TileViewerMouseEventArgs()
{
ClickX = ClickX,
ClickY = ClickY,
TileClickX = TileClickX,
TileClickY = TileClickY,
Button = e.ChangedButton
};
MouseDown?.Invoke(this, a);
}
private void TileViewer_MouseUp(object sender, MouseButtonEventArgs e)
{
mouseDown = false;
panning = false;
Point p = e.GetPosition(MainGrid);
OverX = p.X / TileSize;
OverY = p.Y / TileSize;
TileOverX = Convert.ToInt32(Math.Floor(OverX));
TileOverY = Convert.ToInt32(Math.Floor(OverY));
if (TileOverX < 0)
{
TileOverX = 0;
}
if (TileOverX >= ColCount)
{
TileOverX = ColCount;
}
if (TileOverY < 0)
{
TileOverY = 0;
}
if (TileOverY >= RowCount)
{
TileOverY = RowCount;
}
var a = new TileViewerMouseEventArgs()
{
ClickX = ClickX, // [wip]
ClickY = ClickY, // [wip]
TileClickX = TileClickX,
TileClickY = TileClickY,
PosX = OverX,
PosY = OverY,
PosTileX = TileOverX,
PosTileY = TileOverY,
Button = e.ChangedButton
};
MouseUp?.Invoke(this, a);
}
private void TileViewer_MouseMove(object sender, MouseEventArgs e)
{
Point p = e.GetPosition(MainGrid);
int newX = Convert.ToInt32(Math.Floor(p.X / TileSize));
int newY = Convert.ToInt32(Math.Floor(p.Y / TileSize));
if (newX < 0 || newX >= ColCount || newY < 0 || newY >= RowCount)
{
if (!mouseDown)
{
Selection.Visibility = Visibility.Hidden;
}
mouseOver = false;
return;
}
Selection.Visibility = Visibility.Visible;
mouseOver = true;
if (System.Windows.Input.Mouse.LeftButton != MouseButtonState.Pressed &&
System.Windows.Input.Mouse.MiddleButton != MouseButtonState.Pressed &&
System.Windows.Input.Mouse.RightButton != MouseButtonState.Pressed)
{
mouseDown = false;
panning = false;
}
TileOverX = newX;
TileOverY = newY;
OverX = p.X / TileSize;
OverY = p.Y / TileSize;
if (panning)
{
Point q = e.GetPosition(Parent);
Parent.ScrollToHorizontalOffset(PanningOriginX + PanningStartX - q.X);
Parent.ScrollToVerticalOffset(PanningOriginY + PanningStartY - q.Y);
}
else if (mouseDown)
{
Selection.SetValue(Grid.RowProperty, Math.Min(TileOverY, TileClickY));
Selection.SetValue(Grid.ColumnProperty, Math.Min(TileOverX, TileClickX));
Selection.SetValue(Grid.RowSpanProperty, Math.Abs(TileOverY - TileClickY) + 1);
Selection.SetValue(Grid.ColumnSpanProperty, Math.Abs(TileOverX - TileClickX) + 1);
var a = new TileViewerMouseEventArgs()
{
TileClickX = TileClickX,
TileClickY = TileClickY,
PosTileX = TileOverX,
PosTileY = TileOverY,
ClickX = ClickX,
ClickY = ClickY,
PosX = OverX,
PosY = OverY
};
MouseDrag?.Invoke(this, a);
}
else
{
Selection.SetValue(Grid.RowProperty, TileOverY);
Selection.SetValue(Grid.ColumnProperty, TileOverX);
Selection.SetValue(Grid.RowSpanProperty, 1);
Selection.SetValue(Grid.ColumnSpanProperty, 1);
}
}
