public void DrawLine(Pen pen, Point startPoint, Point endPoint)
{
canvas.DrawLine((float)startPoint.X, (float)startPoint.Y, (float)endPoint.X, (float)endPoint.Y,
new Paint {
Color = pen.Brush.Color.ToAndroid(), StrokeWidth = (float)pen.Thickness
});
}
public void DrawText(FormattedText formattedText, Point point, Rect?clipRect)
{
var paint = new Paint();
paint.TextSize = formattedText.FontSize;
paint.Color = formattedText.Brush.Color.ToAndroid();
paint.AntiAlias = true;
var offset = -paint.Ascent();
canvas.DrawText(formattedText.Text, (float)point.X, (float)(point.Y + offset), paint);
}
private IObservable <PointerInput> GetPointerObservable()
{
var down = Observable.FromEventPattern <ButtonPressEventHandler, ButtonPressEventArgs>(
ev => widget.ButtonPressEvent += ev,
ev => widget.ButtonPressEvent -= ev).Select(ev =>
{
var x = ev.EventArgs.Event.X;
var y = ev.EventArgs.Event.Y;
var point = new Point(x, y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Down
});
});
var up = Observable.FromEventPattern <ButtonReleaseEventHandler, ButtonReleaseEventArgs>(
ev => widget.ButtonReleaseEvent += ev,
ev => widget.ButtonReleaseEvent -= ev).Select(ev =>
{
var x = ev.EventArgs.Event.X;
var y = ev.EventArgs.Event.Y;
var point = new Point(x, y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Up
});
});
var move = Observable.FromEventPattern <MotionNotifyEventHandler, MotionNotifyEventArgs>(
ev => widget.MotionNotifyEvent += ev,
ev => widget.MotionNotifyEvent -= ev).Select(ev =>
{
var x = ev.EventArgs.Event.X;
var y = ev.EventArgs.Event.Y;
var point = new Point(x, y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Released
});
});
return(down.Merge(up).Merge(move));
}
private static IObservable <PointerInput> GetPointerObservable(IInputElement element)
{
var down = Observable.FromEventPattern <MouseButtonEventHandler, MouseEventArgs>(
ev => element.PreviewMouseLeftButtonDown += ev,
ev => element.PreviewMouseLeftButtonDown -= ev)
.Select(pattern =>
{
var position = pattern.EventArgs.GetPosition(element);
var point = new Point(position.X, position.Y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Down
});
});
var up = Observable.FromEventPattern <MouseButtonEventHandler, MouseEventArgs>(
ev => element.PreviewMouseLeftButtonUp += ev,
ev => element.PreviewMouseLeftButtonUp -= ev)
.Select(pattern =>
{
var position = pattern.EventArgs.GetPosition(element);
var point = new Point(position.X, position.Y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Up
});
});
var hover = Observable.FromEventPattern <MouseEventHandler, MouseEventArgs>(
ev => element.PreviewMouseMove += ev,
ev => element.PreviewMouseMove -= ev)
.Select(pattern =>
{
var position = pattern.EventArgs.GetPosition(element);
var point = new Point(position.X, position.Y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Released
});
});
return(down.Merge(up).Merge(hover));
}
private IObservable <PointerInput> GetPointerObservable()
{
var pressed = Observable.FromEventPattern <PointerEventHandler, PointerRoutedEventArgs>(
ev => control.PointerPressed += ev,
ev => control.PointerPressed -= ev).Select(pattern =>
{
var pointerPoint = pattern.EventArgs.GetCurrentPoint(control);
var point1 = new Point(pointerPoint.Position.X, pointerPoint.Position.Y);
return(new PointerInput {
Point = point1, PrimaryButtonStatus = PointerStatus.Down
});
});
var released = Observable.FromEventPattern <PointerEventHandler, PointerRoutedEventArgs>(
ev => control.PointerReleased += ev,
ev => control.PointerReleased -= ev).Select(pattern =>
{
var pointerPoint = pattern.EventArgs.GetCurrentPoint(control);
var point = new Point(pointerPoint.Position.X, pointerPoint.Position.Y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Up
});
});
var moved = Observable.FromEventPattern <PointerEventHandler, PointerRoutedEventArgs>(
ev => control.PointerMoved += ev,
ev => control.PointerMoved -= ev).Select(pattern =>
{
var pointerPoint1 = pattern.EventArgs.GetCurrentPoint(control);
var point = new Point(pointerPoint1.Position.X, pointerPoint1.Position.Y);
return(new PointerInput {
Point = point, PrimaryButtonStatus = PointerStatus.Released
});
});
return(pressed.Merge(released).Merge(moved));
}
public static PointF ToAndroid(this OmniGui.Geometry.Point point)
{
return(new PointF((int)point.X, (int)point.Y));
}
