/// <summary>
/// Writes a reference to the specified image for rendering in the defined position at that size within the current graphics stream
/// </summary>
/// <param name="img"></param>
/// <param name="imgsize"></param>
/// <param name="pos"></param>
/// <remarks>This does not include the image within the document or ensure that it is available</remarks>
public void PaintImageRef(Scryber.Resources.PDFImageXObject img, PDFSize imgsize, PDFPoint pos)
{
if (string.IsNullOrEmpty(img.Name.Value))
{
throw new ArgumentNullException("img.Name");
}
PDFReal width = (PDFReal)(imgsize.Width.RealValue);
PDFReal height = (PDFReal)(imgsize.Height.RealValue);
PDFReal x = pos.X.RealValue;
PDFReal y;
if (this.Origin == DrawingOrigin.TopLeft)
{
//convert the top down to bottom of the page up to the image
y = ContainerSize.Height.RealValue - pos.Y.RealValue - height;
}
else
{
y = pos.Y.RealValue;
}
this.Writer.WriteOpCodeS(PDFOpCode.GraphTransformMatrix,
width, PDFReal.Zero,
PDFReal.Zero, height, x, y);
this.Writer.WriteOpCodeS(PDFOpCode.XobjPaint, img.Name);
}
public void Equals_Test()
{
PDFReal target = new PDFReal(10.0);
PDFReal num = new PDFReal(10.0);
bool expected = true;
bool actual;
actual = target.Equals(num);
Assert.AreEqual(expected, actual);
num = new PDFReal(-10.9);
expected = false;
actual = target.Equals(num);
Assert.AreEqual(expected, actual);
num = new PDFReal();
expected = false;
actual = target.Equals(num);
Assert.AreEqual(expected, actual);
num = new PDFReal();
target = new PDFReal();
expected = true;
actual = target.Equals(num);
Assert.AreEqual(expected, actual);
}
public void DrawText(string text, Typeface typeface, double fontSize, PDFColor color,
double x, double y)
{
PDFFont pdfFont;
if (!_fontMapping.TryGetValue(typeface, out pdfFont))
{
pdfFont = new PDFTrueTypeFont(CreateIndirectDictionary(), typeface);
_fontMapping[typeface] = pdfFont;
pdfFont.ResourceKeyId = _fontMapping.Count;
}
int fontKey = pdfFont.ResourceKeyId;
pdfFont.AddStringToSubset(text);
// Let's create a temporary PDFString, which takes care of escaping special characters.
PDFString str = new PDFString(text);
WriteColor(color, false);
AppendToContentStream(
"BT\r\n" +
$" /F{fontKey} {PDFReal.RealToString(fontSize)} Tf\r\n" +
$" {PDFReal.RealToString(x)} {PDFReal.RealToString(-y)} Td\r\n" +
$" {str.ToString()} Tj\r\n" +
"ET\r\n");
}
private void WriteLineWidth(PDFColor stroke, double lineWidth)
{
if (stroke != null)
{
AppendToContentStream($"{PDFReal.RealToString(lineWidth)} w\r\n");
}
}
public void op_Division_Test()
{
PDFReal one = new PDFReal(10.2);
PDFReal two = new PDFReal(2.0);
PDFReal expected = new PDFReal(5.1);
PDFReal actual;
actual = (one / two);
Assert.AreEqual(expected, actual);
two = new PDFReal(0.0);
try
{
actual = (one / two);
//because we are a double then we can just about do this
if (!double.IsInfinity(actual.Value))
{
Assert.Fail("Did not throw error for divide by zero");
}
}
catch (DivideByZeroException)
{
TestContext.WriteLine("Successfully caught the divide by 0 exception");
}
}
protected virtual void RenderBezierCurveToWithStartHandleOnly(PDFReal endX, PDFReal endY, PDFReal starthandleX, PDFReal startHandleY)
{
starthandleX = GetXPosition(starthandleX);
startHandleY = GetYPosition(startHandleY);
endX = GetXPosition(endX);
endY = GetYPosition(endY);
this.Writer.WriteOpCodeS(PDFOpCode.GraphCurve1HandleBegin, starthandleX, startHandleY, endX, endY);
}
protected virtual void RenderBezierCurveToWithEndHandleOnly(PDFReal endX, PDFReal endY, PDFReal endhandleX, PDFReal endHandleY)
{
endhandleX = GetXPosition(endhandleX);
endHandleY = GetYPosition(endHandleY);
endX = GetXPosition(endX);
endY = GetYPosition(endY);
this.Writer.WriteOpCodeS(PDFOpCode.GraphCurve1HandleEnd, endhandleX, endHandleY, endX, endY);
}
public string ToContentStreamOp(bool isStroke)
{
string op = isStroke ? "RG\r\n" : "rg\r\n";
string r = PDFReal.RealToString(Red);
string g = PDFReal.RealToString(Green);
string b = PDFReal.RealToString(Blue);
return($"{r} {g} {b} {op}");
}
public void ToString_Test()
{
double value = 10.2;
PDFReal target = new PDFReal(value);
string expected = value.ToString();
string actual;
actual = target.ToString();
Assert.AreEqual(expected, actual);
}
public void DrawRectangle(double x, double y, double width, double height,
PDFColor stroke, PDFColor fill, double lineWidth)
{
WriteColor(fill, false);
WriteColor(stroke, true);
WriteLineWidth(stroke, lineWidth);
AppendToContentStream(
$"{ PDFReal.RealToString(x) } { PDFReal.RealToString(-y) } { PDFReal.RealToString(width) } { PDFReal.RealToString(-height) } re\r\n");
WritePaintOp(stroke, fill);
}
public void PDFSolidBrushConstructor_Test1()
{
PDFColor color = PDFColors.Aqua;
PDFReal opacity = 1F;
PDFSolidBrush target = new PDFSolidBrush(color, opacity);
Assert.IsNotNull(target);
Assert.AreEqual(color, target.Color);
Assert.AreEqual(opacity, target.Opacity);
Assert.AreEqual(FillType.Solid, target.FillStyle);
}
public void Type_Test()
{
PDFReal target = new PDFReal();
PDFObjectType expected = PDFObjectTypes.Real;
PDFObjectType actual;
actual = target.Type;
Assert.AreEqual(expected, actual);
target = 10.5;
actual = target.Type;
Assert.AreEqual(expected, actual);
}
public void Opacity_Test()
{
PDFPen target = PDFPen.Create(PDFColors.Aqua, 1);
PDFReal expected = -1;
PDFReal actual = target.Opacity;
Assert.AreEqual(expected, actual);
expected = 0.5;
target.Opacity = expected;
actual = target.Opacity;
Assert.AreEqual(expected, actual);
}
public void Opacity_Test()
{
PDFColor color = PDFColors.Aqua;
PDFReal opacity = 1F;
PDFSolidBrush target = new PDFSolidBrush(color, opacity);
Assert.AreEqual(opacity, target.Opacity);
PDFReal expected = 0.4F;
target.Opacity = expected;
Assert.AreEqual(expected, target.Opacity);
}
public void op_Implicit_Test()
{
float val = 10.5F;
PDFReal expected = new PDFReal(val);
PDFReal actual;
actual = val;
Assert.AreEqual(expected, actual);
val = 10.6F;
actual = val;
Assert.AreNotEqual(expected, actual);
}
public void op_Explicit_Test1()
{
float expected = 10.2F;
PDFReal number = new PDFReal(expected);
float actual;
actual = ((float)(number));
Assert.AreEqual(expected, actual);
number = new PDFReal(20.4F);
actual = (float)number;
Assert.AreNotEqual(expected, actual);
}
public void op_Explicit_Test()
{
double expected = 10.5;
PDFReal number = new PDFReal(expected);
double actual;
actual = ((double)(number));
Assert.AreEqual(expected, actual);
number = new PDFReal(20.1);
actual = (double)number;
Assert.AreNotEqual(expected, actual);
}
public void op_Implicit_Test1()
{
double val = 10.5;
PDFReal expected = new PDFReal(val);
PDFReal actual;
actual = val;
Assert.AreEqual(expected, actual);
val = 10.6;
actual = val;
Assert.AreNotEqual(expected, actual);
}
public void Value_Test()
{
double expected = 100.5;
PDFReal target = new PDFReal(expected);
double actual = target.Value;
Assert.AreEqual(actual, expected);
expected = 200.1;
target.Value = expected;
actual = target.Value;
Assert.AreEqual(expected, actual);
}
public void op_Equality_Test()
{
PDFReal one = new PDFReal(10.5);
PDFReal two = new PDFReal(10.5);
bool expected = true;
bool actual;
actual = (one == two);
Assert.AreEqual(expected, actual);
two = new PDFReal(5.5);
expected = false;
actual = (one == two);
Assert.AreEqual(expected, actual);
}
public void DrawLine(double x0, double y0, double x1, double y1,
PDFColor stroke, double lineWidth)
{
if (stroke == null)
{
return;
}
WriteColor(stroke, true);
WriteLineWidth(stroke, lineWidth);
AppendToContentStream(
$"{ PDFReal.RealToString(x0) } { PDFReal.RealToString(-y0) } m\r\n" +
$"{ PDFReal.RealToString(x1) } { PDFReal.RealToString(-y1) } l\r\n");
AppendToContentStream("S\r\n");
}
public void SetFillOpacity(PDFReal opacity)
{
if (opacity.Value < 0.0 || opacity.Value > 1.0)
{
throw new ArgumentOutOfRangeException("Opacity values can only be between 0.0 (transparent) and 1.0 (blockout)");
}
this.ExternalState.SetFillOpacity(opacity);
//if(opacity.Value != _currentOpacity.Fill)
//{
// Resources.PDFExtGSState state = this.EnsureExternalState();
// state.States[Resources.PDFExtGSState.ColorFillOpactity] = opacity;
// _currentOpacity.Fill = opacity.Value;
//}
}
public void op_Multiply_Test()
{
PDFReal one = new PDFReal(10.2);
PDFReal two = new PDFReal(2.0);
PDFReal expected = new PDFReal(20.4);
PDFReal actual;
actual = (one * two);
Assert.AreEqual(expected, actual);
two = new PDFReal(0.0);
actual = (one * two);
Assert.AreEqual(two, actual);
}
public void PDFRealConstructor_Test()
{
double value = 0F;
PDFReal target = new PDFReal(value);
Assert.AreEqual(value, target.Value);
value = -10.0;
target = new PDFReal(value);
Assert.AreEqual(value, target.Value);
value = double.MaxValue;
target = new PDFReal(value);
Assert.AreEqual(value, target.Value);
}
private void OutputQuadrantShapes(PDFUnit x, PDFUnit y, PDFUnit width, PDFUnit height, Quadrants sides)
{
PDFReal left = x.RealValue;
PDFReal right = (x + width).RealValue;
PDFReal top = y.RealValue;
PDFReal bottom = (y + height).RealValue;
PDFReal hcentre = (left + (width.RealValue / (PDFReal)2.0));
PDFReal vcentre = (top + (height.RealValue / (PDFReal)2.0));
PDFReal xhandle = ((width.RealValue / (PDFReal)2.0) * (PDFReal)CircularityFactor);
PDFReal yhandle = ((height.RealValue / (PDFReal)2.0) * (PDFReal)CircularityFactor);
if ((sides & Quadrants.TopLeft) > 0)
{
this.RenderMoveTo(left, vcentre);
//top left quadrant
this.RenderBezierCurveTo(hcentre, top, left, vcentre - yhandle, hcentre - xhandle, top);
this.RenderContinuationLine(hcentre, vcentre);
this.RenderContinuationLine(left, vcentre);
}
if ((sides & Quadrants.TopRight) > 0)
{
this.RenderMoveTo(hcentre, top);
//top right quadrant
this.RenderBezierCurveTo(right, vcentre, hcentre + xhandle, top, right, vcentre - yhandle);
this.RenderContinuationLine(hcentre, vcentre);
this.RenderContinuationLine(hcentre, top);
}
if ((sides & Quadrants.BottomRight) > 0)
{
this.RenderMoveTo(right, vcentre);
//bottom right quadrant
this.RenderBezierCurveTo(hcentre, bottom, right, vcentre + yhandle, hcentre + xhandle, bottom);
this.RenderContinuationLine(hcentre, vcentre);
this.RenderContinuationLine(right, vcentre);
}
if ((sides & Quadrants.BottomLeft) > 0)
{
this.RenderMoveTo(hcentre, bottom);
//bottom left quadrant
this.RenderBezierCurveTo(left, vcentre, hcentre - xhandle, bottom, left, vcentre + yhandle);
this.RenderContinuationLine(hcentre, vcentre);
this.RenderContinuationLine(hcentre, bottom);
}
}
public void op_Addition_Test()
{
PDFReal one = new PDFReal(10.0);
PDFReal two = new PDFReal(22.0);
PDFReal expected = new PDFReal(32.0);
PDFReal actual;
actual = (one + two);
Assert.AreEqual(expected.Value, actual.Value);
one = new PDFReal(-20.5);
two = new PDFReal(20.5);
expected = new PDFReal(0);
actual = (one + two);
Assert.AreEqual(expected, actual);
}
public void op_Subtraction_Test()
{
PDFReal one = new PDFReal(10.1);
PDFReal two = new PDFReal(20.2);
PDFReal expected = new PDFReal(-10.1);
PDFReal actual;
actual = (one - two);
Assert.AreEqual(expected, actual);
one = new PDFReal(20.5);
two = new PDFReal(20.5);
expected = new PDFReal(0);
actual = (one - two);
Assert.AreEqual(expected, actual);
}
/// <summary>
/// Renders a series of horizontal line with the passed spacing
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="spacing"></param>
private void OutputHorizontalLines(PDFReal x, PDFReal y, PDFReal width, PDFReal height, PDFReal spacing)
{
PDFReal maxy = y + height;
PDFReal minx = GetXPosition(x);
PDFReal maxx = GetXPosition(x + width);
while (y < maxy)
{
PDFReal ypos = GetYPosition(y);
this.Writer.WriteOpCodeS(PDFOpCode.GraphMove, minx, ypos);
this.Writer.WriteOpCodeS(PDFOpCode.GraphLineTo, maxx, ypos);
this.Writer.WriteOpCodeS(PDFOpCode.GraphStrokePath);
y += spacing;
}
}
/// <summary>
/// Renders a series of vertical lines with the passed spacing
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="spacing"></param>
private void OutputVerticalLines(PDFReal x, PDFReal y, PDFReal width, PDFReal height, PDFReal spacing)
{
PDFReal maxx = x + width;
PDFReal miny = GetYPosition(y);
PDFReal maxy = GetYPosition(y + height);
while (x < maxx)
{
PDFReal xpos = GetXPosition(x);
this.Writer.WriteOpCodeS(PDFOpCode.GraphMove, xpos, miny);
this.Writer.WriteOpCodeS(PDFOpCode.GraphLineTo, xpos, maxy);
this.Writer.WriteOpCodeS(PDFOpCode.GraphStrokePath);
x += spacing;
}
}
private PDFObject createNewValueForSelectedScalar(PDFObject selectedPDFObject, string newValue)
{
PDFObject newPDFObject = null;
if (selectedPDFObject is PDFString)
{
PDFString selectedPDFString = selectedPDFObject as PDFString;
newPDFObject = new PDFString(newValue, PDFDoc, selectedPDFString.Indirect, selectedPDFString.StoredAsHex);
}
else if (selectedPDFObject is PDFName)
{
newPDFObject = new PDFName(newValue, PDFDoc, selectedPDFObject.Indirect);
}
else if (selectedPDFObject is PDFReal)
{
double newVal;
if (double.TryParse(newValue, out newVal))
{
newPDFObject = new PDFReal(newVal, PDFDoc, selectedPDFObject.Indirect);
}
else
{
throw new FormatException("The value is not of type double.");
}
}
else if (selectedPDFObject is PDFInteger)
{
int newVal;
if (int.TryParse(newValue, out newVal))
{
newPDFObject = new PDFInteger(newVal, PDFDoc, selectedPDFObject.Indirect);
}
else
{
throw new FormatException("The value is not of type integer.");
}
}
else
{
throw new InvalidOperationException("Non scalar types can't be altered");
}
return(newPDFObject);
}
