void renderBox(iDrawContext context, iGeometry geometry, int id, float boundingBoxesOpacity, ref Matrix3x2 tform)
{
// if( id != 0 ) return;
Rect box;
if (geometry is iPathGeometry pathGeometry)
{
box = pathGeometry.getApproximateBounds(ref tform);
}
else
{
box = geometry.getBounds(ref tform);
}
Vector4 color = Color.moreRandomColor(id);
if (context.device.premultipliedAlphaBrushes)
{
color *= boundingBoxesOpacity;
}
else
{
color.W = boundingBoxesOpacity;
}
context.transform.pushIdentity();
context.drawRectangle(box, context.device.createSolidColorBrush(color), 1);
context.transform.pop();
}
public iImmediateDrawContext begin(iDrawContext dc, Vector4 clearColor)
{
if (null != context)
{
throw new ApplicationException("You can't call iVrmacDrawDevice.begin() several times");
}
dc.beginDraw();
float clearAlpha = clearColor.W;
if (clearAlpha >= 1.0f / 255.0f)
{
dc.clear(ref clearColor);
}
context = dc;
transform.clear();
return(this);
}
public void render(iDrawContext context, Rect?box, float boundingBoxesOpacity)
{
Matrix3x2 view = Matrix3x2.Identity;
if (viewBox.HasValue && box.HasValue)
{
view = MathUtils.createViewbox(box.Value, viewBox.Value);
}
if (boundingBoxesOpacity > 0)
{
boundingBoxesOpacity = MathF.Min(boundingBoxesOpacity, 1);
}
int i = 0;
using (var t = context.transform.transform(view))
{
Matrix3x2 m = paths[0].style.matrix;
context.transform.push(m);
Matrix3x2 transform = context.transform.current;
foreach (var p in paths)
{
if (p.style.matrix != m)
{
m = p.style.matrix;
context.transform.pop();
context.transform.push(m);
if (boundingBoxesOpacity > 0)
{
transform = context.transform.current;
}
}
if (boundingBoxesOpacity > 0)
{
renderBox(context, p.geometry, i++, boundingBoxesOpacity, ref transform);
}
int mask = 0;
if (p.style.fillColor.HasValue && renderFills)
{
mask |= 1;
}
if (p.style.strokeColor.HasValue && renderStrokes)
{
mask |= 2;
}
var dev = context.device;
switch (mask)
{
case 1:
context.fillGeometry(p.geometry, dev.createSolidColorBrush(p.style.fillColor.Value));
break;
case 2:
context.drawGeometry(p.geometry, dev.createSolidColorBrush(p.style.strokeColor.Value), p.style.strokeWidth);
break;
case 3:
context.fillAndStroke(p.geometry, dev.createSolidColorBrush(p.style.fillColor.Value), dev.createSolidColorBrush(p.style.strokeColor.Value), p.style.strokeWidth);
break;
}
}
// No need to pop, the `using` statement cleans up everything pushed on top of the transform stack
}
}
void drawGeometry(iDrawContext dc, int i)
{
dc.fillGeometry(shapes[i], brush(i * 2 + 2));
// dc.drawGeometry( shapes[ i ], brush( i * 2 + 1 ), strokeWidth, strokeStyle );
}
void IDisposable.Dispose()
{
context?.endDraw();
context = null;
}