public static void Draw(Canvas canvas, ZoomInOutWidget zoomInOut)
{
// If this widget belongs to no viewport, than stop drawing
if (zoomInOut.Map == null)
{
return;
}
_brushStroke = new SolidColorBrush(zoomInOut.StrokeColor.ToXaml());
_brushStroke.Opacity = zoomInOut.Opacity;
_brushBackground = new SolidColorBrush(zoomInOut.BackColor.ToXaml());
_brushBackground.Opacity = zoomInOut.Opacity;
_brushText = new SolidColorBrush(zoomInOut.TextColor.ToXaml());
_brushText.Opacity = zoomInOut.Opacity;
var posX = zoomInOut.CalculatePositionX(0, (float)canvas.Width, zoomInOut.Orientation == Widgets.Zoom.Orientation.Vertical ? zoomInOut.Size : zoomInOut.Size * 2 - Stroke);
var posY = zoomInOut.CalculatePositionY(0, (float)canvas.Height, zoomInOut.Orientation == Widgets.Zoom.Orientation.Vertical ? zoomInOut.Size * 2 - Stroke : zoomInOut.Size);
// Draw a rect for zoom in button
var rect = new Rectangle();
rect.Width = zoomInOut.Size;
rect.Height = zoomInOut.Size;
rect.Stroke = _brushStroke;
rect.StrokeThickness = Stroke;
rect.Fill = _brushBackground;
rect.RadiusX = 2;
rect.RadiusY = 2;
Canvas.SetLeft(rect, posX);
Canvas.SetTop(rect, posY);
canvas.Children.Add(rect);
// Draw a rect for zoom in button
rect = new Rectangle();
rect.Width = zoomInOut.Size;
rect.Height = zoomInOut.Size;
rect.Stroke = _brushStroke;
rect.StrokeThickness = Stroke;
rect.Fill = _brushBackground;
rect.RadiusX = 2;
rect.RadiusY = 2;
Canvas.SetLeft(rect, zoomInOut.Orientation == Widgets.Zoom.Orientation.Vertical ? posX : posX + rect.Width - Stroke);
Canvas.SetTop(rect, zoomInOut.Orientation == Widgets.Zoom.Orientation.Vertical ? posY + rect.Height - Stroke : posY);
canvas.Children.Add(rect);
// Draw +
var line = new Line();
line.X1 = posX + zoomInOut.Size * 0.3;
line.Y1 = posY + zoomInOut.Size * 0.5;
line.X2 = posX + zoomInOut.Size * 0.7;
line.Y2 = posY + zoomInOut.Size * 0.5;
line.Stroke = _brushText;
line.StrokeThickness = Stroke;
line.StrokeStartLineCap = PenLineCap.Square;
line.StrokeEndLineCap = PenLineCap.Square;
canvas.Children.Add(line);
line = new Line();
line.X1 = posX + zoomInOut.Size * 0.5;
line.Y1 = posY + zoomInOut.Size * 0.3;
line.X2 = posX + zoomInOut.Size * 0.5;
line.Y2 = posY + zoomInOut.Size * 0.7;
line.Stroke = _brushText;
line.StrokeThickness = Stroke;
line.StrokeStartLineCap = PenLineCap.Square;
line.StrokeEndLineCap = PenLineCap.Square;
canvas.Children.Add(line);
// Draw -
line = new Line();
if (zoomInOut.Orientation == Widgets.Zoom.Orientation.Vertical)
{
line.X1 = posX + zoomInOut.Size * 0.3;
line.Y1 = posY - Stroke + zoomInOut.Size * 1.5;
line.X2 = posX + zoomInOut.Size * 0.7;
line.Y2 = posY - Stroke + zoomInOut.Size * 1.5;
}
else
{
line.X1 = posX - Stroke + zoomInOut.Size * 1.3;
line.Y1 = posY + zoomInOut.Size * 0.5;
line.X2 = posX - Stroke + zoomInOut.Size * 1.7;
line.Y2 = posY + zoomInOut.Size * 0.5;
}
line.Stroke = _brushText;
line.StrokeThickness = Stroke;
line.StrokeStartLineCap = PenLineCap.Square;
line.StrokeEndLineCap = PenLineCap.Square;
canvas.Children.Add(line);
if (zoomInOut.Orientation == Widgets.Zoom.Orientation.Vertical)
{
zoomInOut.Envelope = new BoundingBox(posX, posY, posX + rect.Width, posY + rect.Width * 2 - Stroke);
}
else
{
zoomInOut.Envelope = new BoundingBox(posX, posY, posX + rect.Width * 2 - Stroke, posY + rect.Width);
}
}
public static void Draw(SKCanvas canvas, double screenWidth, double screenHeight, ZoomInOutWidget zoomInOut,
float layerOpacity)
{
// If this widget belongs to no viewport, than stop drawing
if (zoomInOut.Map == null)
{
return;
}
// If this is the first time, we call this renderer, ...
if (_paintStroke == null)
{
// ... than create the paints
_paintStroke = CreatePaint(zoomInOut.StrokeColor.ToSkia(layerOpacity), Stroke, SKPaintStyle.Stroke);
_paintBackground = CreatePaint(zoomInOut.BackColor.ToSkia(layerOpacity), Stroke, SKPaintStyle.Fill);
_paintText = CreatePaint(zoomInOut.TextColor.ToSkia(layerOpacity), Stroke, SKPaintStyle.Fill);
}
else
{
// Update paints with new values
_paintStroke.Color = zoomInOut.StrokeColor.ToSkia(zoomInOut.Opacity);
_paintBackground.Color = zoomInOut.BackColor.ToSkia(zoomInOut.Opacity);
_paintText.Color = zoomInOut.TextColor.ToSkia(zoomInOut.Opacity);
}
var posX = zoomInOut.CalculatePositionX(0, (float)screenWidth, zoomInOut.Orientation == Orientation.Vertical ? zoomInOut.Size : zoomInOut.Size * 2 - Stroke);
var posY = zoomInOut.CalculatePositionY(0, (float)screenHeight, zoomInOut.Orientation == Orientation.Vertical ? zoomInOut.Size * 2 - Stroke : zoomInOut.Size);
// Draw a rect for zoom in button
SKRect rect;
rect = new SKRect(posX, posY, posX + zoomInOut.Size, posY + zoomInOut.Size);
canvas.DrawRoundRect(rect, 2, 2, _paintBackground);
canvas.DrawRoundRect(rect, 2, 2, _paintStroke);
// Draw rect for zoom out button
if (zoomInOut.Orientation == Orientation.Vertical)
{
rect = new SKRect(posX, posY + zoomInOut.Size, posX + zoomInOut.Size, posY + zoomInOut.Size * 2 - Stroke);
}
else
{
rect = new SKRect(posX + zoomInOut.Size, posY, posX + zoomInOut.Size * 2 - Stroke, posY + zoomInOut.Size);
}
canvas.DrawRoundRect(rect, 2, 2, _paintBackground);
canvas.DrawRoundRect(rect, 2, 2, _paintStroke);
// Draw +
canvas.DrawLine(posX + zoomInOut.Size * 0.3f, posY + zoomInOut.Size * 0.5f, posX + zoomInOut.Size * 0.7f, posY + zoomInOut.Size * 0.5f, _paintText);
canvas.DrawLine(posX + zoomInOut.Size * 0.5f, posY + zoomInOut.Size * 0.3f, posX + zoomInOut.Size * 0.5f, posY + zoomInOut.Size * 0.7f, _paintText);
// Draw -
if (zoomInOut.Orientation == Orientation.Vertical)
{
canvas.DrawLine(posX + zoomInOut.Size * 0.3f, posY - Stroke + zoomInOut.Size * 1.5f, posX + zoomInOut.Size * 0.7f, posY - Stroke + zoomInOut.Size * 1.5f, _paintText);
}
else
{
canvas.DrawLine(posX - Stroke + zoomInOut.Size * 1.3f, posY + zoomInOut.Size * 0.5f, posX - Stroke + zoomInOut.Size * 1.7f, posY + zoomInOut.Size * 0.5f, _paintText);
}
// Perhaps we should resize the Envelop about half of stroke, because of Skia rendering have of line outside
if (zoomInOut.Orientation == Orientation.Vertical)
{
zoomInOut.Envelope = new BoundingBox(posX, posY, posX + rect.Width, posY + rect.Width * 2 - Stroke);
}
else
{
zoomInOut.Envelope = new BoundingBox(posX, posY, posX + rect.Width * 2 - Stroke, posY + rect.Width);
}
}
