public void AddViewBoxTransform(SvgAspectRatio aspectRatio, ISvgRenderer renderer, SvgFragment frag)
{
var x = (frag == null ? 0 : frag.X.ToDeviceValue(renderer, UnitRenderingType.Horizontal, frag));
var y = (frag == null ? 0 : frag.Y.ToDeviceValue(renderer, UnitRenderingType.Vertical, frag));
if (this.Equals(SvgViewBox.Empty))
{
renderer.TranslateTransform(x, y, MatrixOrder.Prepend);
return;
}
var width = (frag == null ? this.Width : frag.Width.ToDeviceValue(renderer, UnitRenderingType.Horizontal, frag));
var height = (frag == null ? this.Height : frag.Height.ToDeviceValue(renderer, UnitRenderingType.Vertical, frag));
var fScaleX = width / this.Width;
var fScaleY = height / this.Height; //(this.MinY < 0 ? -1 : 1) *
var fMinX = -this.MinX * fScaleX;
var fMinY = -this.MinY * fScaleY;
if (aspectRatio == null)
{
aspectRatio = new SvgAspectRatio(SvgPreserveAspectRatio.xMidYMid, false);
}
if (aspectRatio.Align != SvgPreserveAspectRatio.none)
{
if (aspectRatio.Slice)
{
fScaleX = Math.Max(fScaleX, fScaleY);
fScaleY = Math.Max(fScaleX, fScaleY);
}
else
{
fScaleX = Math.Min(fScaleX, fScaleY);
fScaleY = Math.Min(fScaleX, fScaleY);
}
float fViewMidX = (this.Width / 2) * fScaleX;
float fViewMidY = (this.Height / 2) * fScaleY;
float fMidX = width / 2;
float fMidY = height / 2;
fMinX = -this.MinX * fScaleX;
fMinY = -this.MinY * fScaleY;
switch (aspectRatio.Align)
{
case SvgPreserveAspectRatio.xMinYMin:
break;
case SvgPreserveAspectRatio.xMidYMin:
fMinX += fMidX - fViewMidX;
break;
case SvgPreserveAspectRatio.xMaxYMin:
fMinX += width - this.Width * fScaleX;
break;
case SvgPreserveAspectRatio.xMinYMid:
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMidYMid:
fMinX += fMidX - fViewMidX;
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMaxYMid:
fMinX += width - this.Width * fScaleX;
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMinYMax:
fMinY += height - this.Height * fScaleY;
break;
case SvgPreserveAspectRatio.xMidYMax:
fMinX += fMidX - fViewMidX;
fMinY += height - this.Height * fScaleY;
break;
case SvgPreserveAspectRatio.xMaxYMax:
fMinX += width - this.Width * fScaleX;
fMinY += height - this.Height * fScaleY;
break;
default:
break;
}
}
renderer.SetClip(new Region(new RectangleF(x, y, width, height)), CombineMode.Intersect);
renderer.TranslateTransform(x, y, MatrixOrder.Prepend);
renderer.TranslateTransform(fMinX, fMinY, MatrixOrder.Prepend);
renderer.ScaleTransform(fScaleX, fScaleY, MatrixOrder.Prepend);
}
public void AddViewBoxTransform(SvgAspectRatio aspectRatio, ISvgRenderer renderer, SvgFragment frag)
{
var x = frag == null ? 0f : frag.X.ToDeviceValue(renderer, UnitRenderingType.Horizontal, frag);
var y = frag == null ? 0f : frag.Y.ToDeviceValue(renderer, UnitRenderingType.Vertical, frag);
if (Equals(Empty))
{
renderer.TranslateTransform(x, y, MatrixOrder.Prepend);
return;
}
var width = frag == null ? Width : frag.Width.ToDeviceValue(renderer, UnitRenderingType.Horizontal, frag);
var height = frag == null ? Height : frag.Height.ToDeviceValue(renderer, UnitRenderingType.Vertical, frag);
var fScaleX = width / Width;
var fScaleY = height / Height; //(MinY < 0 ? -1 : 1) *
var fMinX = -MinX * fScaleX;
var fMinY = -MinY * fScaleY;
aspectRatio ??= new SvgAspectRatio(SvgPreserveAspectRatio.xMidYMid);
if (aspectRatio.Align != SvgPreserveAspectRatio.none)
{
if (aspectRatio.Slice)
{
fScaleX = Math.Max(fScaleX, fScaleY);
fScaleY = Math.Max(fScaleX, fScaleY);
}
else
{
fScaleX = Math.Min(fScaleX, fScaleY);
fScaleY = Math.Min(fScaleX, fScaleY);
}
var fViewMidX = (Width / 2) * fScaleX;
var fViewMidY = (Height / 2) * fScaleY;
var fMidX = width / 2;
var fMidY = height / 2;
fMinX = -MinX * fScaleX;
fMinY = -MinY * fScaleY;
switch (aspectRatio.Align)
{
case SvgPreserveAspectRatio.xMinYMin:
break;
case SvgPreserveAspectRatio.xMidYMin:
fMinX += fMidX - fViewMidX;
break;
case SvgPreserveAspectRatio.xMaxYMin:
fMinX += width - Width * fScaleX;
break;
case SvgPreserveAspectRatio.xMinYMid:
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMidYMid:
fMinX += fMidX - fViewMidX;
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMaxYMid:
fMinX += width - Width * fScaleX;
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMinYMax:
fMinY += height - Height * fScaleY;
break;
case SvgPreserveAspectRatio.xMidYMax:
fMinX += fMidX - fViewMidX;
fMinY += height - Height * fScaleY;
break;
case SvgPreserveAspectRatio.xMaxYMax:
fMinX += width - Width * fScaleX;
fMinY += height - Height * fScaleY;
break;
default:
break;
}
}
renderer.TranslateTransform(x, y, MatrixOrder.Prepend);
renderer.TranslateTransform(fMinX, fMinY, MatrixOrder.Prepend);
renderer.ScaleTransform(fScaleX, fScaleY, MatrixOrder.Prepend);
}
/// <summary>
/// Renders the <see cref="SvgElement"/> and contents to the specified <see cref="Graphics"/> object.
/// </summary>
protected override void Render(ISvgRenderer renderer)
{
if (!Visible || !Displayable)
{
return;
}
if (Width.Value > 0.0f && Height.Value > 0.0f && this.Href != null)
{
var img = GetImage();
if (img != null)
{
RectangleF srcRect;
var bmp = img as Image;
var svg = img as SvgFragment;
if (bmp != null)
{
srcRect = new RectangleF(0, 0, bmp.Width, bmp.Height);
}
else if (svg != null)
{
srcRect = new RectangleF(new PointF(0, 0), svg.GetDimensions());
}
else
{
return;
}
var destClip = new RectangleF(this.Location.ToDeviceValue(renderer, this),
new SizeF(Width.ToDeviceValue(renderer, UnitRenderingType.Horizontal, this),
Height.ToDeviceValue(renderer, UnitRenderingType.Vertical, this)));
RectangleF destRect = destClip;
this.PushTransforms(renderer);
renderer.SetClip(new Region(destClip), CombineMode.Intersect);
this.SetClip(renderer);
SvgAspectRatio aspectRatio = AspectRatio ?? new SvgAspectRatio(SvgPreserveAspectRatio.xMidYMid);
if (aspectRatio.Align != SvgPreserveAspectRatio.none)
{
var fScaleX = destClip.Width / srcRect.Width;
var fScaleY = destClip.Height / srcRect.Height;
var xOffset = 0.0f;
var yOffset = 0.0f;
if (aspectRatio.Slice)
{
fScaleX = Math.Max(fScaleX, fScaleY);
fScaleY = Math.Max(fScaleX, fScaleY);
}
else
{
fScaleX = Math.Min(fScaleX, fScaleY);
fScaleY = Math.Min(fScaleX, fScaleY);
}
switch (aspectRatio.Align)
{
case SvgPreserveAspectRatio.xMinYMin:
break;
case SvgPreserveAspectRatio.xMidYMin:
xOffset = (destClip.Width - srcRect.Width * fScaleX) / 2;
break;
case SvgPreserveAspectRatio.xMaxYMin:
xOffset = (destClip.Width - srcRect.Width * fScaleX);
break;
case SvgPreserveAspectRatio.xMinYMid:
yOffset = (destClip.Height - srcRect.Height * fScaleY) / 2;
break;
case SvgPreserveAspectRatio.xMidYMid:
xOffset = (destClip.Width - srcRect.Width * fScaleX) / 2;
yOffset = (destClip.Height - srcRect.Height * fScaleY) / 2;
break;
case SvgPreserveAspectRatio.xMaxYMid:
xOffset = (destClip.Width - srcRect.Width * fScaleX);
yOffset = (destClip.Height - srcRect.Height * fScaleY) / 2;
break;
case SvgPreserveAspectRatio.xMinYMax:
yOffset = (destClip.Height - srcRect.Height * fScaleY);
break;
case SvgPreserveAspectRatio.xMidYMax:
xOffset = (destClip.Width - srcRect.Width * fScaleX) / 2;
yOffset = (destClip.Height - srcRect.Height * fScaleY);
break;
case SvgPreserveAspectRatio.xMaxYMax:
xOffset = (destClip.Width - srcRect.Width * fScaleX);
yOffset = (destClip.Height - srcRect.Height * fScaleY);
break;
}
destRect = new RectangleF(destClip.X + xOffset, destClip.Y + yOffset,
srcRect.Width * fScaleX, srcRect.Height * fScaleY);
}
if (bmp != null)
{
if (Opacity == 1F)
{
renderer.DrawImage(bmp, destRect, srcRect, GraphicsUnit.Pixel);
}
else
{
renderer.DrawImage(bmp, destRect, srcRect, GraphicsUnit.Pixel, Opacity);
}
bmp.Dispose();
}
else if (svg != null)
{
var currOffset = new PointF(renderer.Transform.OffsetX, renderer.Transform.OffsetY);
renderer.TranslateTransform(-currOffset.X, -currOffset.Y);
renderer.ScaleTransform(destRect.Width / srcRect.Width, destRect.Height / srcRect.Height);
renderer.TranslateTransform(currOffset.X + destRect.X, currOffset.Y + destRect.Y);
renderer.SetBoundable(new GenericBoundable(srcRect));
svg.RenderElement(renderer);
renderer.PopBoundable();
}
this.ResetClip(renderer);
this.PopTransforms(renderer);
}
// TODO: cache images... will need a shared context for this
// TODO: support preserveAspectRatio, etc
}
}
public void AddViewBoxTransform(SvgAspectRatio aspectRatio, ISvgRenderer renderer, SvgFragment frag)
{
var x = (frag == null ? 0 : frag.X.ToDeviceValue(renderer, UnitRenderingType.Horizontal, frag));
var y = (frag == null ? 0 : frag.Y.ToDeviceValue(renderer, UnitRenderingType.Vertical, frag));
if (this.Equals(SvgViewBox.Empty))
{
renderer.TranslateTransform(x, y);
return;
}
var width = (frag == null ? this.Width : frag.Width.ToDeviceValue(renderer, UnitRenderingType.Horizontal, frag));
var height = (frag == null ? this.Height : frag.Height.ToDeviceValue(renderer, UnitRenderingType.Vertical, frag));
var fScaleX = width / this.Width;
var fScaleY = height / this.Height; //(this.MinY < 0 ? -1 : 1) *
var fMinX = -this.MinX * fScaleX;
var fMinY = -this.MinY * fScaleY;
if (aspectRatio == null) aspectRatio = new SvgAspectRatio(SvgPreserveAspectRatio.xMidYMid, false);
if (aspectRatio.Align != SvgPreserveAspectRatio.none)
{
if (aspectRatio.Slice)
{
fScaleX = Math.Max(fScaleX, fScaleY);
fScaleY = Math.Max(fScaleX, fScaleY);
}
else
{
fScaleX = Math.Min(fScaleX, fScaleY);
fScaleY = Math.Min(fScaleX, fScaleY);
}
float fViewMidX = (this.Width / 2) * fScaleX;
float fViewMidY = (this.Height / 2) * fScaleY;
float fMidX = width / 2;
float fMidY = height / 2;
fMinX = -this.MinX * fScaleX;
fMinY = -this.MinY * fScaleY;
switch (aspectRatio.Align)
{
case SvgPreserveAspectRatio.xMinYMin:
break;
case SvgPreserveAspectRatio.xMidYMin:
fMinX += fMidX - fViewMidX;
break;
case SvgPreserveAspectRatio.xMaxYMin:
fMinX += width - this.Width * fScaleX;
break;
case SvgPreserveAspectRatio.xMinYMid:
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMidYMid:
fMinX += fMidX - fViewMidX;
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMaxYMid:
fMinX += width - this.Width * fScaleX;
fMinY += fMidY - fViewMidY;
break;
case SvgPreserveAspectRatio.xMinYMax:
fMinY += height - this.Height * fScaleY;
break;
case SvgPreserveAspectRatio.xMidYMax:
fMinX += fMidX - fViewMidX;
fMinY += height - this.Height * fScaleY;
break;
case SvgPreserveAspectRatio.xMaxYMax:
fMinX += width - this.Width * fScaleX;
fMinY += height - this.Height * fScaleY;
break;
default:
break;
}
}
renderer.SetClip(new Region(new RectangleF(x, y, width, height)), CombineMode.Intersect);
renderer.ScaleTransform(fScaleX, fScaleY, MatrixOrder.Prepend);
renderer.TranslateTransform(x, y);
renderer.TranslateTransform(fMinX, fMinY);
}