/// <summary>
///
/// </summary>
private void InitializeDrawable()
{
var context = this.DataContext as EditorContext;
if (context == null)
{
return;
}
context.Invalidate =
() =>
{
InitializeLayers();
ResizeDrawable();
var container = context.Editor.Project.CurrentContainer;
if (container != null)
{
container.Invalidate();
}
};
_state = new ZoomState(context);
context.Commands.ZoomResetCommand =
Command.Create(
() =>
{
_state.ResetZoom();
if (context.Invalidate != null)
{
context.Invalidate();
}
},
() => true);
context.Commands.ZoomExtentCommand =
Command.Create(
() =>
{
_state.AutoFit();
if (context.Invalidate != null)
{
context.Invalidate();
}
},
() => true);
this.PointerPressed +=
(sender, e) =>
{
if (_state == null)
{
return;
}
var p = e.GetPosition(this);
if (e.MouseButton == MouseButton.Middle)
{
_state.MiddleDown(p.X, p.Y);
// TODO: this.Cursor = Cursors.Pointer;
}
if (e.MouseButton == MouseButton.Left)
{
this.Focus();
_state.PrimaryDown(p.X, p.Y);
}
if (e.MouseButton == MouseButton.Right)
{
this.Focus();
_state.AlternateDown(p.X, p.Y);
}
};
this.PointerReleased +=
(sender, e) =>
{
if (_state == null)
{
return;
}
var p = e.GetPosition(this);
if (e.MouseButton == MouseButton.Middle)
{
this.Focus();
_state.MiddleUp(p.X, p.Y);
// TODO: this.Cursor = Cursors.Default;
}
if (e.MouseButton == MouseButton.Left)
{
this.Focus();
_state.PrimaryUp(p.X, p.Y);
}
if (e.MouseButton == MouseButton.Right)
{
this.Focus();
_state.AlternateUp(p.X, p.Y);
}
};
this.PointerMoved +=
(sender, e) =>
{
if (_state == null)
{
return;
}
var p = e.GetPosition(this);
_state.Move(p.X, p.Y);
};
this.PointerWheelChanged +=
(sender, e) =>
{
if (_state == null)
{
return;
}
var p = e.GetPosition(this);
_state.Wheel(p.X, p.Y, e.Delta.Y);
};
}
