private void Canvas_OnMouseWheel(object sender, MouseWheelEventArgs e)
{
if (Condition == null)
{
return;
}
var ic = PointMatrixPick.CreateICFromPick(Condition);
var p = e.GetPosition(Canvas);
var X = _x + _scale * p.X / (Canvas.Width / (ic.Grid.CellGrid.GetLength(0)));
if (X >= ic.Grid.CellGrid.GetLength(0))
{
return;
}
var Y = _y + _scale * p.Y / (Canvas.Height / (ic.Grid.CellGrid.GetLength(1)));
if (Y >= ic.Grid.CellGrid.GetLength(1))
{
return;
}
_scale += Math.Sign(-e.Delta) * 0.1;
if (_scale < 0.1)
{
_scale = 0.1;
}
if (_scale > 1)
{
_scale = 1;
}
var width = ic.Grid.CellGrid.GetLength(0);
var height = ic.Grid.CellGrid.GetLength(1);
var nwidth = (int)(width * _scale);
var nheight = (int)(height * _scale);
var x = (int)X - (nwidth / 2);
var y = (int)Y
- (nheight / 2);
var xx = (int)X + (nwidth / 2);
var yy = (int)Y + (nheight / 2);
if (xx >= width)
{
x -= (xx - width) + 1;
}
if (yy >= height)
{
y -= (yy - height) + 1;
}
if (x < 0)
{
x = 0;
}
if (y < 0)
{
y = 0;
}
_x = x;
_y = y;
Condition = PointMatrixPick.CreatePickFromIC(ic, Condition);
}
private void UpdateScreen()
{
Canvas.Children.Clear();
var ic = PointMatrixPick.CreateICFromPick(Condition);
Canvas.Children.Add(new Image
{
Source =
GenerateImage(_x, _y, (int)(ic.Grid.CellGrid.GetLength(0) * _scale),
(int)(ic.Grid.CellGrid.GetLength(1) * _scale))
});
}
private void Canvas_OnMouseDown(object sender, MouseButtonEventArgs e)
{
if (Operation.None == _selectedOperation)
{
return;
}
if (_comboBox.SelectedIndex < 0)
{
return;
}
var p = e.GetPosition(Canvas);
var ic = PointMatrixPick.CreateICFromPick(Condition);
var x = _x + _scale * p.X / (Canvas.Width / (ic.Grid.CellGrid.GetLength(0)));
if (x >= ic.Grid.CellGrid.GetLength(0))
{
return;
}
var y = _y + _scale * p.Y / (Canvas.Height / (ic.Grid.CellGrid.GetLength(1)));
if (y >= ic.Grid.CellGrid.GetLength(1))
{
return;
}
if (Operation.Check == _selectedOperation)
{
ic.Grid.CellGrid[(int)x, (int)y].Value = InitialConditions.GetTransformation((int)MatrixCount)(_comboBox.SelectedIndex);
}
else
{
var k = ic.Grid.CellGrid[(int)x, (int)y].Value;
for (var i = 0; i < ic.Grid.CellGrid.GetLength(0); i++)
{
for (var j = 0; j < ic.Grid.CellGrid.GetLength(1); j++)
{
if (ic.Grid.CellGrid[i, j].Value == k)
{
ic.Grid.CellGrid[i, j].Value = InitialConditions.GetTransformation((int)MatrixCount)(_comboBox.SelectedIndex);
}
}
}
}
Condition = PointMatrixPick.CreatePickFromIC(ic, Condition);
}
private DrawingImage GenerateImage(int x, int y, int width, int height)
{
var ic = PointMatrixPick.CreateICFromPick(Condition);
return(ic.Grid.GenerateImage(x, y, width, height, Canvas.Width, Canvas.Height));
}