/**
* Creates a new TextRenderInfo object
* @param text the text that should be displayed
* @param gs the graphics state (note: at this time, this is not immutable, so don't cache it)
* @param textMatrix the text matrix at the time of the render operation
* @param markedContentInfo the marked content sequence, if available
*/
internal TextRenderInfo(String text, GraphicsState gs, Matrix textMatrix, ICollection markedContentInfo) {
this.text = text;
this.textToUserSpaceTransformMatrix = textMatrix.Multiply(gs.ctm);
this.gs = gs;
this.markedContentInfos = new List<MarkedContentInfo>();
foreach (MarkedContentInfo m in markedContentInfo) {
this.markedContentInfos.Add(m);
}
}
public void Invoke(PdfContentStreamProcessor processor, PdfLiteral oper, List<PdfObject> operands) {
GraphicsState gs = processor.gsStack.Peek();
GraphicsState copy = new GraphicsState(gs);
processor.gsStack.Push(copy);
}
/**
* Copy constructor.
* @param source another GraphicsState object
*/
public GraphicsState(GraphicsState source){
// note: all of the following are immutable, with the possible exception of font
// so it is safe to copy them as-is
ctm = source.ctm;
characterSpacing = source.characterSpacing;
wordSpacing = source.wordSpacing;
horizontalScaling = source.horizontalScaling;
leading = source.leading;
font = source.font;
fontSize = source.fontSize;
renderMode = source.renderMode;
rise = source.rise;
knockout = source.knockout;
colorSpaceFill = source.colorSpaceFill;
colorSpaceStroke = source.colorSpaceStroke;
fillColor = source.fillColor;
strokeColor = source.strokeColor;
}
/**
* If the operation is {@link #NO_OP} then the rule is ignored,
* otherwise {@link #NONZERO_WINDING_RULE} is used by default.
*
* See {@link #PathPaintingRenderInfo(int, int, GraphicsState)}
*/
public PathPaintingRenderInfo(int operation, GraphicsState gs) : this(operation, NONZERO_WINDING_RULE, gs) {
}
/**
* @param operation One of the possible combinations of {@link #STROKE} and {@link #FILL} values or {@link #NO_OP}
* @param rule Either {@link #NONZERO_WINDING_RULE} or {@link #EVEN_ODD_RULE}.
* @param gs The graphics state.
*/
public PathPaintingRenderInfo(int operation, int rule, GraphicsState gs) {
this.operation = operation;
this.rule = rule;
this.gs = gs;
}
/**
* Creates a new TextRenderInfo object
* @param string the PDF string that should be displayed
* @param gs the graphics state (note: at this time, this is not immutable, so don't cache it)
* @param textMatrix the text matrix at the time of the render operation
* @param markedContentInfo the marked content sequence, if available
*/
internal TextRenderInfo(PdfString @string, GraphicsState gs, Matrix textMatrix, ICollection markedContentInfo) {
this.@string = @string;
this.textToUserSpaceTransformMatrix = textMatrix.Multiply(gs.ctm);
this.gs = gs;
this.markedContentInfos = new List<MarkedContentInfo>();
if (markedContentInfo.Count > 0) { // check for performance purposes, as markedContentInfo.GetEnumerator is a costly operation for some reason
foreach (MarkedContentInfo m in markedContentInfo) {
this.markedContentInfos.Add(m);
}
}
this.fontMatrix = gs.font.GetFontMatrix();
}
/**
* Used for creating sub-TextRenderInfos for each individual character
* @param parent the parent TextRenderInfo
* @param string the content of a TextRenderInfo
* @param horizontalOffset the unscaled horizontal offset of the character that this TextRenderInfo represents
* @since 5.3.3
*/
private TextRenderInfo(TextRenderInfo parent, PdfString @string, float horizontalOffset) {
this.@string = @string;
this.textToUserSpaceTransformMatrix = new Matrix(horizontalOffset, 0).Multiply(parent.textToUserSpaceTransformMatrix);
this.gs = parent.gs;
this.markedContentInfos = parent.markedContentInfos;
this.fontMatrix = gs.font.GetFontMatrix();
}
/**
* Used for creating sub-TextRenderInfos for each individual character
* @param parent the parent TextRenderInfo
* @param charIndex the index of the character that this TextRenderInfo will represent
* @param horizontalOffset the unscaled horizontal offset of the character that this TextRenderInfo represents
* @since 5.3.3
*/
private TextRenderInfo(TextRenderInfo parent, int charIndex, float horizontalOffset)
{
this.text = parent.text.Substring(charIndex, 1);
this.textToUserSpaceTransformMatrix = new Matrix(horizontalOffset, 0).Multiply(parent.textToUserSpaceTransformMatrix);
this.gs = parent.gs;
this.markedContentInfos = parent.markedContentInfos;
}
/**
* Create an ImageRenderInfo object based on inline image data. This is nowhere near completely thought through
* and really just acts as a placeholder.
* @param ctm the coordinate transformation matrix at the time the image is rendered
* @param imageObject the image object representing the inline image
* @return the ImageRenderInfo representing the rendered embedded image
* @since 5.0.1
*/
protected internal static ImageRenderInfo CreateForEmbeddedImage(GraphicsState gs, InlineImageInfo inlineImageInfo, PdfDictionary colorSpaceDictionary, ICollection markedContentInfos)
{
ImageRenderInfo renderInfo = new ImageRenderInfo(gs, inlineImageInfo, colorSpaceDictionary, markedContentInfos);
return(renderInfo);
}
/**
* Create an ImageRenderInfo object based on an XObject (this is the most common way of including an image in PDF)
* @param ctm the coordinate transformation matrix at the time the image is rendered
* @param ref a reference to the image XObject
* @return the ImageRenderInfo representing the rendered XObject
* @since 5.0.1
*/
public static ImageRenderInfo CreateForXObject(GraphicsState gs, PdfIndirectReference refi, PdfDictionary colorSpaceDictionary, ICollection markedContentInfos)
{
return(new ImageRenderInfo(gs, refi, colorSpaceDictionary, markedContentInfos));
}
/**
* Create an ImageRenderInfo object based on an XObject (this is the most common way of including an image in PDF)
* @param ctm the coordinate transformation matrix at the time the image is rendered
* @param ref a reference to the image XObject
* @return the ImageRenderInfo representing the rendered XObject
* @since 5.0.1
*/
public static ImageRenderInfo CreateForXObject(GraphicsState gs, PdfIndirectReference refi, PdfDictionary colorSpaceDictionary)
{
return(new ImageRenderInfo(gs, refi, colorSpaceDictionary, null));
}
/**
* If the operation is {@link #NO_OP} then the rule is ignored,
* otherwise {@link #NONZERO_WINDING_RULE} is used by default.
*
* See {@link #PathPaintingRenderInfo(int, int, GraphicsState)}
*/
public PathPaintingRenderInfo(int operation, GraphicsState gs) : this(operation, NONZERO_WINDING_RULE, gs)
{
}
/**
* @param operation One of the possible combinations of {@link #STROKE} and {@link #FILL} values or {@link #NO_OP}
* @param rule Either {@link #NONZERO_WINDING_RULE} or {@link #EVEN_ODD_RULE}.
* @param gs The graphics state.
*/
public PathPaintingRenderInfo(int operation, int rule, GraphicsState gs)
{
this.operation = operation;
this.rule = rule;
this.gs = gs;
}
