protected internal override void DoDraw(SvgDrawContext context)
{
PdfCanvas cv = context.GetCurrentCanvas();
cv.WriteLiteral("% rect\n");
float x = 0.0f;
float y = 0.0f;
if (GetAttribute(SvgConstants.Attributes.X) != null)
{
x = CssUtils.ParseAbsoluteLength(GetAttribute(SvgConstants.Attributes.X));
}
if (GetAttribute(SvgConstants.Attributes.Y) != null)
{
y = CssUtils.ParseAbsoluteLength(GetAttribute(SvgConstants.Attributes.Y));
}
float width = CssUtils.ParseAbsoluteLength(GetAttribute(SvgConstants.Attributes.WIDTH));
float height = CssUtils.ParseAbsoluteLength(GetAttribute(SvgConstants.Attributes.HEIGHT));
bool rxPresent = false;
bool ryPresent = false;
float rx = 0f;
float ry = 0f;
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.RX))
{
rx = CssUtils.ParseAbsoluteLength(GetAttribute(SvgConstants.Attributes.RX));
rxPresent = true;
}
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.RY))
{
ry = CssUtils.ParseAbsoluteLength(GetAttribute(SvgConstants.Attributes.RY));
ryPresent = true;
}
bool singleValuePresent = (rxPresent && !ryPresent) || (!rxPresent && ryPresent);
// these checks should happen in all cases
rx = CheckRadius(rx, width);
ry = CheckRadius(ry, height);
if (!rxPresent && !ryPresent)
{
cv.Rectangle(x, y, width, height);
}
else
{
if (singleValuePresent)
{
cv.WriteLiteral("% circle rounded rect\n");
// only look for radius in case of circular rounding
float radius = FindCircularRadius(rx, ry, width, height);
cv.RoundRectangle(x, y, width, height, radius);
}
else
{
cv.WriteLiteral("% ellipse rounded rect\n");
// TODO (DEVSIX-1878): this should actually be refactored into PdfCanvas.roundRectangle()
/*
*
* y+h -> ____________________________
* / \
* / \
* y+h-ry -> / \
| |
| |
| |
| |
| y+ry -> \ /
\ /
\ y -> \____________________________/
\ ^ ^ ^ ^
\ x x+rx x+w-rx x+w
\
*/
cv.MoveTo(x + rx, y);
cv.LineTo(x + width - rx, y);
Arc(x + width - 2 * rx, y, x + width, y + 2 * ry, -90, 90, cv);
cv.LineTo(x + width, y + height - ry);
Arc(x + width, y + height - 2 * ry, x + width - 2 * rx, y + height, 0, 90, cv);
cv.LineTo(x + rx, y + height);
Arc(x + 2 * rx, y + height, x, y + height - 2 * ry, 90, 90, cv);
cv.LineTo(x, y + ry);
Arc(x, y + 2 * ry, x + 2 * rx, y, 180, 90, cv);
cv.ClosePath();
}
}
}
/// <summary>
/// Method that will set properties to be inherited by this branch renderer's
/// children and will iterate over all children in order to draw them.
/// </summary>
/// <param name="context">
/// the object that knows the place to draw this element and
/// maintains its state
/// </param>
protected internal override void DoDraw(SvgDrawContext context)
{
if (GetChildren().Count > 0)
{
// if branch has no children, don't do anything
PdfCanvas currentCanvas = context.GetCurrentCanvas();
if (performRootTransformations)
{
currentCanvas.BeginText();
//Current transformation matrix results in the character glyphs being mirrored, correct with inverse tf
AffineTransform rootTf;
if (this.ContainsAbsolutePositionChange())
{
rootTf = GetTextTransform(this.GetAbsolutePositionChanges(), context);
}
else
{
rootTf = new AffineTransform(TEXTFLIP);
}
currentCanvas.SetTextMatrix(rootTf);
//Reset context of text move
context.ResetTextMove();
//Apply relative move
if (this.ContainsRelativeMove())
{
float[] rootMove = this.GetRelativeTranslation();
context.AddTextMove(rootMove[0], -rootMove[1]);
}
//-y to account for the text-matrix transform we do in the text root to account for the coordinates
//handle white-spaces
if (!whiteSpaceProcessed)
{
SvgTextUtil.ProcessWhiteSpace(this, true);
}
}
ApplyTextRenderingMode(currentCanvas);
if (this.attributesAndStyles != null)
{
ResolveFontSize();
ResolveFont(context);
currentCanvas.SetFontAndSize(font, fontSize);
foreach (ISvgTextNodeRenderer c in children)
{
float childLength = c.GetTextContentLength(fontSize, font);
if (c.ContainsAbsolutePositionChange())
{
//TODO(DEVSIX-2507) support rotate and other attributes
float[][] absolutePositions = c.GetAbsolutePositionChanges();
AffineTransform newTransform = GetTextTransform(absolutePositions, context);
//overwrite the last transformation stored in the context
context.SetLastTextTransform(newTransform);
//Apply transformation
currentCanvas.SetTextMatrix(newTransform);
//Absolute position changes requires resetting the current text move in the context
context.ResetTextMove();
}
//Handle Text-Anchor declarations
float textAnchorCorrection = GetTextAnchorAlignmentCorrection(childLength);
if (!CssUtils.CompareFloats(0f, textAnchorCorrection))
{
context.AddTextMove(textAnchorCorrection, 0);
}
//Move needs to happen before the saving of the state in order for it to cascade beyond
if (c.ContainsRelativeMove())
{
float[] childMove = c.GetRelativeTranslation();
context.AddTextMove(childMove[0], -childMove[1]);
}
//-y to account for the text-matrix transform we do in the text root to account for the coordinates
currentCanvas.SaveState();
c.Draw(context);
context.AddTextMove(childLength, 0);
currentCanvas.RestoreState();
//Restore transformation matrix
if (!context.GetLastTextTransform().IsIdentity())
{
currentCanvas.SetTextMatrix(context.GetLastTextTransform());
}
}
if (performRootTransformations)
{
currentCanvas.EndText();
}
}
}
}
protected internal override void DoDraw(SvgDrawContext context)
{
ResourceResolver resourceResolver = context.GetResourceResolver();
if (resourceResolver == null || this.attributesAndStyles == null)
{
return;
}
String uri = this.attributesAndStyles.Get(SvgConstants.Attributes.XLINK_HREF);
PdfXObject xObject = resourceResolver.RetrieveImageExtended(uri);
if (xObject == null)
{
return;
}
PdfCanvas currentCanvas = context.GetCurrentCanvas();
float x = 0;
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.X))
{
x = CssUtils.ParseAbsoluteLength(attributesAndStyles.Get(SvgConstants.Attributes.X));
}
float y = 0;
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.Y))
{
y = CssUtils.ParseAbsoluteLength(attributesAndStyles.Get(SvgConstants.Attributes.Y));
}
float width = 0;
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.WIDTH))
{
width = CssUtils.ParseAbsoluteLength(attributesAndStyles.Get(SvgConstants.Attributes.WIDTH));
}
float height = 0;
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.HEIGHT))
{
height = CssUtils.ParseAbsoluteLength(attributesAndStyles.Get(SvgConstants.Attributes.HEIGHT));
}
String preserveAspectRatio = "";
if (attributesAndStyles.ContainsKey(SvgConstants.Attributes.PRESERVE_ASPECT_RATIO))
{
preserveAspectRatio = attributesAndStyles.Get(SvgConstants.Attributes.PRESERVE_ASPECT_RATIO);
}
preserveAspectRatio = preserveAspectRatio.ToLowerInvariant();
if (!SvgConstants.Values.NONE.Equals(preserveAspectRatio) && !(width == 0 || height == 0))
{
float normalizedWidth;
float normalizedHeight;
if (xObject.GetWidth() / width > xObject.GetHeight() / height)
{
normalizedWidth = width;
normalizedHeight = xObject.GetHeight() / xObject.GetWidth() * width;
}
else
{
normalizedWidth = xObject.GetWidth() / xObject.GetHeight() * height;
normalizedHeight = height;
}
switch (preserveAspectRatio.ToLowerInvariant())
{
case SvgConstants.Values.XMIN_YMIN: {
break;
}
case SvgConstants.Values.XMIN_YMID: {
y += Math.Abs(normalizedHeight - height) / 2;
break;
}
case SvgConstants.Values.XMIN_YMAX: {
y += Math.Abs(normalizedHeight - height);
break;
}
case SvgConstants.Values.XMID_YMIN: {
x += Math.Abs(normalizedWidth - width) / 2;
break;
}
case SvgConstants.Values.XMID_YMAX: {
x += Math.Abs(normalizedWidth - width) / 2;
y += Math.Abs(normalizedHeight - height);
break;
}
case SvgConstants.Values.XMAX_YMIN: {
x += Math.Abs(normalizedWidth - width);
break;
}
case SvgConstants.Values.XMAX_YMID: {
x += Math.Abs(normalizedWidth - width);
y += Math.Abs(normalizedHeight - height) / 2;
break;
}
case SvgConstants.Values.XMAX_YMAX: {
x += Math.Abs(normalizedWidth - width);
y += Math.Abs(normalizedHeight - height);
break;
}
case SvgConstants.Values.DEFAULT_ASPECT_RATIO:
default: {
x += Math.Abs(normalizedWidth - width) / 2;
y += Math.Abs(normalizedHeight - height) / 2;
break;
}
}
width = normalizedWidth;
height = normalizedHeight;
}
float v = y + height;
currentCanvas.AddXObject(xObject, width, 0, 0, -height, x, v);
}
public override Color CreateColor(SvgDrawContext context, Rectangle objectBoundingBox, float objectBoundingBoxMargin
, float parentOpacity)
{
if (objectBoundingBox == null)
{
return(null);
}
LinearGradientBuilder builder = new LinearGradientBuilder();
foreach (GradientColorStop stopColor in ParseStops(parentOpacity))
{
builder.AddColorStop(stopColor);
}
builder.SetSpreadMethod(ParseSpreadMethod());
bool isObjectBoundingBox = IsObjectBoundingBoxUnits();
Point[] coordinates = GetCoordinates(context, isObjectBoundingBox);
builder.SetGradientVector(coordinates[0].GetX(), coordinates[0].GetY(), coordinates[1].GetX(), coordinates
[1].GetY());
AffineTransform gradientTransform = GetGradientTransformToUserSpaceOnUse(objectBoundingBox, isObjectBoundingBox
);
builder.SetCurrentSpaceToGradientVectorSpaceTransformation(gradientTransform);
return(builder.BuildColor(objectBoundingBox.ApplyMargins(objectBoundingBoxMargin, objectBoundingBoxMargin,
objectBoundingBoxMargin, objectBoundingBoxMargin, true), context.GetCurrentCanvasTransform(), context.
GetCurrentCanvas().GetDocument()));
}
/// <summary>Operations to perform before drawing an element.</summary>
/// <remarks>
/// Operations to perform before drawing an element.
/// This includes setting stroke color and width, fill color.
/// </remarks>
/// <param name="context">the svg draw context</param>
internal virtual void PreDraw(SvgDrawContext context)
{
if (this.attributesAndStyles != null)
{
PdfCanvas currentCanvas = context.GetCurrentCanvas();
PdfExtGState opacityGraphicsState = new PdfExtGState();
if (!partOfClipPath)
{
float generalOpacity = GetOpacity();
{
// fill
String fillRawValue = GetAttribute(SvgConstants.Attributes.FILL);
this.doFill = !SvgConstants.Values.NONE.EqualsIgnoreCase(fillRawValue);
if (doFill && CanElementFill())
{
Color rgbColor = ColorConstants.BLACK;
float fillOpacity = generalOpacity;
String opacityValue = GetAttribute(SvgConstants.Attributes.FILL_OPACITY);
if (opacityValue != null && !SvgConstants.Values.NONE.EqualsIgnoreCase(opacityValue))
{
fillOpacity *= float.Parse(opacityValue, System.Globalization.CultureInfo.InvariantCulture);
}
if (fillRawValue != null)
{
fillOpacity *= GetAlphaFromRGBA(fillRawValue);
rgbColor = WebColors.GetRGBColor(fillRawValue);
}
if (!CssUtils.CompareFloats(fillOpacity, 1f))
{
opacityGraphicsState.SetFillOpacity(fillOpacity);
}
currentCanvas.SetFillColor(rgbColor);
}
}
{
// stroke
String strokeRawValue = GetAttribute(SvgConstants.Attributes.STROKE);
if (!SvgConstants.Values.NONE.EqualsIgnoreCase(strokeRawValue))
{
if (strokeRawValue != null)
{
Color rgbColor = WebColors.GetRGBColor(strokeRawValue);
float strokeOpacity = generalOpacity;
String opacityValue = GetAttribute(SvgConstants.Attributes.STROKE_OPACITY);
if (opacityValue != null && !SvgConstants.Values.NONE.EqualsIgnoreCase(opacityValue))
{
strokeOpacity *= float.Parse(opacityValue, System.Globalization.CultureInfo.InvariantCulture);
}
strokeOpacity *= GetAlphaFromRGBA(strokeRawValue);
if (!CssUtils.CompareFloats(strokeOpacity, 1f))
{
opacityGraphicsState.SetStrokeOpacity(strokeOpacity);
}
currentCanvas.SetStrokeColor(rgbColor);
String strokeWidthRawValue = GetAttribute(SvgConstants.Attributes.STROKE_WIDTH);
// 1 px = 0,75 pt
float strokeWidth = 0.75f;
if (strokeWidthRawValue != null)
{
strokeWidth = CssUtils.ParseAbsoluteLength(strokeWidthRawValue);
}
currentCanvas.SetLineWidth(strokeWidth);
doStroke = true;
}
}
}
{
// opacity
if (!opacityGraphicsState.GetPdfObject().IsEmpty())
{
currentCanvas.SetExtGState(opacityGraphicsState);
}
}
}
}
}
/// <summary>Operations to be performed after drawing the element.</summary>
/// <remarks>
/// Operations to be performed after drawing the element.
/// This includes filling, stroking.
/// </remarks>
/// <param name="context">the svg draw context</param>
internal virtual void PostDraw(SvgDrawContext context)
{
if (this.attributesAndStyles != null)
{
PdfCanvas currentCanvas = context.GetCurrentCanvas();
// fill-rule
if (partOfClipPath)
{
if (SvgConstants.Values.FILL_RULE_EVEN_ODD.EqualsIgnoreCase(this.GetAttribute(SvgConstants.Attributes.CLIP_RULE
)))
{
currentCanvas.EoClip();
}
else
{
currentCanvas.Clip();
}
currentCanvas.EndPath();
}
else
{
if (doFill && CanElementFill())
{
String fillRuleRawValue = GetAttribute(SvgConstants.Attributes.FILL_RULE);
if (SvgConstants.Values.FILL_RULE_EVEN_ODD.EqualsIgnoreCase(fillRuleRawValue))
{
if (doStroke)
{
currentCanvas.EoFillStroke();
}
else
{
currentCanvas.EoFill();
}
}
else
{
if (doStroke)
{
currentCanvas.FillStroke();
}
else
{
currentCanvas.Fill();
}
}
}
else
{
if (doStroke)
{
currentCanvas.Stroke();
}
else
{
if (!typeof(TextSvgBranchRenderer).IsInstanceOfType(this))
{
currentCanvas.EndPath();
}
}
}
}
// Marker drawing
if (this is IMarkerCapable)
{
// TODO (DEVSIX-3397) add processing of 'marker' property (shorthand for a joint using of all other properties)
foreach (MarkerVertexType markerVertexType in MARKER_VERTEX_TYPES)
{
if (attributesAndStyles.ContainsKey(markerVertexType.ToString()))
{
currentCanvas.SaveState();
((IMarkerCapable)this).DrawMarker(context, markerVertexType);
currentCanvas.RestoreState();
}
}
}
}
}
/// <summary>Operations to be performed after drawing the element.</summary>
/// <remarks>
/// Operations to be performed after drawing the element.
/// This includes filling, stroking.
/// </remarks>
/// <param name="context">the svg draw context</param>
internal virtual void PostDraw(SvgDrawContext context)
{
if (this.attributesAndStyles != null)
{
PdfCanvas currentCanvas = context.GetCurrentCanvas();
// fill-rule
if (partOfClipPath)
{
if (SvgConstants.Values.FILL_RULE_EVEN_ODD.EqualsIgnoreCase(this.GetAttribute(SvgConstants.Attributes.CLIP_RULE
)))
{
currentCanvas.EoClip();
}
else
{
currentCanvas.Clip();
}
currentCanvas.EndPath();
}
else
{
if (doFill && CanElementFill())
{
String fillRuleRawValue = GetAttribute(SvgConstants.Attributes.FILL_RULE);
if (SvgConstants.Values.FILL_RULE_EVEN_ODD.EqualsIgnoreCase(fillRuleRawValue))
{
if (doStroke)
{
currentCanvas.EoFillStroke();
}
else
{
currentCanvas.EoFill();
}
}
else
{
if (doStroke)
{
currentCanvas.FillStroke();
}
else
{
currentCanvas.Fill();
}
}
}
else
{
if (doStroke)
{
currentCanvas.Stroke();
}
else
{
if (!typeof(TextSvgBranchRenderer).IsInstanceOfType(this))
{
currentCanvas.EndPath();
}
}
}
}
}
}
protected internal override void DoDraw(SvgDrawContext context)
{
if (this.attributesAndStyles != null)
{
String elementToReUse = this.attributesAndStyles.Get(SvgConstants.Attributes.XLINK_HREF);
if (elementToReUse == null)
{
elementToReUse = this.attributesAndStyles.Get(SvgConstants.Attributes.HREF);
}
if (elementToReUse != null && !String.IsNullOrEmpty(elementToReUse) && IsValidHref(elementToReUse))
{
String normalizedName = NormalizeName(elementToReUse);
if (!context.IsIdUsedByUseTagBefore(normalizedName))
{
ISvgNodeRenderer template = context.GetNamedObject(normalizedName);
//Clone template
ISvgNodeRenderer namedObject = template == null ? null : template.CreateDeepCopy();
//Resolve parent inheritance
SvgNodeRendererInheritanceResolver iresolver = new SvgNodeRendererInheritanceResolver();
iresolver.ApplyInheritanceToSubTree(this, namedObject);
if (namedObject != null)
{
if (namedObject is AbstractSvgNodeRenderer)
{
((AbstractSvgNodeRenderer)namedObject).SetPartOfClipPath(partOfClipPath);
}
PdfCanvas currentCanvas = context.GetCurrentCanvas();
float x = 0f;
float y = 0f;
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.X))
{
x = CssUtils.ParseAbsoluteLength(this.attributesAndStyles.Get(SvgConstants.Attributes.X));
}
if (this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.Y))
{
y = CssUtils.ParseAbsoluteLength(this.attributesAndStyles.Get(SvgConstants.Attributes.Y));
}
AffineTransform inverseMatrix = null;
if (!SvgMathUtils.CompareFloats(x, 0) || !SvgMathUtils.CompareFloats(y, 0))
{
AffineTransform translation = AffineTransform.GetTranslateInstance(x, y);
currentCanvas.ConcatMatrix(translation);
if (partOfClipPath)
{
try {
inverseMatrix = translation.CreateInverse();
}
catch (NoninvertibleTransformException ex) {
LogManager.GetLogger(typeof(UseSvgNodeRenderer)).Warn(SvgLogMessageConstant.NONINVERTIBLE_TRANSFORMATION_MATRIX_USED_IN_CLIP_PATH
, ex);
}
}
}
// setting the parent of the referenced element to this instance
namedObject.SetParent(this);
namedObject.Draw(context);
// unsetting the parent of the referenced element
namedObject.SetParent(null);
if (inverseMatrix != null)
{
currentCanvas.ConcatMatrix(inverseMatrix);
}
}
}
}
}
}
){kind=link}
){kind=link}
){kind=link}
){kind=link}