public override void OnMouseDown(MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed || e.MiddleButton == MouseButtonState.Pressed)
{
clickPoint = MousePositionConverter.GetCursorPosition();
}
}
public override void OnMouseMove(MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed || e.MiddleButton == MouseButtonState.Pressed)
{
var point = MousePositionConverter.GetCursorPosition();
ViewModelMain.Current.BitmapManager.ActiveDocument.ViewportPosition = new System.Windows.Point(
point.X - clickPoint.X,
point.Y - clickPoint.Y);
}
}
public override void OnMouseMove(MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
double xPos = MousePositionConverter.GetCursorPosition().X;
double rawPercentDifference = (xPos - _startingX) / _pixelsPerZoomMultiplier; //negative - zoom out, positive - zoom in, linear
double finalPercentDifference = Math.Pow(2, rawPercentDifference) * 100.0; //less than 100 - zoom out, greater than 100 - zoom in
Zoom(finalPercentDifference);
}
}
public override void OnMouseUp(MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Released && e.RightButton == MouseButtonState.Released &&
_startingX == MousePositionConverter.GetCursorPosition().X)
{
if (Keyboard.Modifiers.HasFlag(ModifierKeys.Alt))
{
Zoom(85);
}
else
{
Zoom(115);
}
}
}
public Color GetColorUnderMouse()
{
System.Drawing.Color color;
using (Bitmap bitmap = new Bitmap(1, 1))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.CopyFromScreen(MousePositionConverter.GetCursorPosition(), new Point(0, 0), new Size(1, 1));
}
color = bitmap.GetPixel(0, 0);
}
return(Color.FromArgb(color.A, color.R, color.G, color.B));
}
private void Start()
{
Cursor.visible = false;
if (_camera == null)
{
_camera = Camera.main;
}
if (_camera.orthographic)
{
_positionConverter = new OrthographicCameraMousePositionConverter(_camera);
}
else
{
_positionConverter = new PerspectiveCameraMousePositionConverter(_camera);
}
}
public override void OnMouseDown(MouseEventArgs e)
{
_startingX = MousePositionConverter.GetCursorPosition().X;
ViewModelMain.Current.ZoomPercentage = 100; //This resest the value, so callback in MainDrawingPanel can fire again later
}
