private void SetColorSameColorSpacesTest(String pdfName, bool pattern)
{
String cmpFile = sourceFolder + "cmp_" + pdfName;
String destFile = destinationFolder + pdfName;
PdfDocument document = new PdfDocument(new PdfWriter(destFile));
PdfPage page = document.AddNewPage();
PdfCanvas canvas = new PdfCanvas(page);
PdfColorSpace space = pattern ? new PdfSpecialCs.Pattern() : PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB
);
float[] colorValue1 = pattern ? null : new float[] { 1.0f, 0.6f, 0.7f };
float[] colorValue2 = pattern ? null : new float[] { 0.1f, 0.9f, 0.9f };
PdfPattern pattern1 = pattern ? new PdfPattern.Shading(new PdfShading.Axial(new PdfDeviceCs.Rgb(), 45, 750
, ColorConstants.PINK.GetColorValue(), 100, 760, ColorConstants.MAGENTA.GetColorValue())) : null;
PdfPattern pattern2 = pattern ? new PdfPattern.Shading(new PdfShading.Axial(new PdfDeviceCs.Rgb(), 45, 690
, ColorConstants.BLUE.GetColorValue(), 100, 710, ColorConstants.CYAN.GetColorValue())) : null;
canvas.SetColor(space, colorValue1, pattern1, true);
canvas.SaveState();
canvas.BeginText().MoveText(50, 750).SetFontAndSize(PdfFontFactory.CreateFont(), 16).ShowText("pinkish").EndText
();
canvas.SaveState().BeginText().SetColor(space, colorValue2, pattern2, true).MoveText(50, 720).SetFontAndSize
(PdfFontFactory.CreateFont(), 16).ShowText("bluish").EndText().RestoreState();
canvas.RestoreState();
canvas.SaveState().BeginText().MoveText(50, 690).SetColor(space, colorValue2, pattern2, true).SetFontAndSize
(PdfFontFactory.CreateFont(), 16).ShowText("bluish").EndText().RestoreState();
canvas.Release();
document.Close();
NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destFile, cmpFile, destinationFolder, "diff_"
));
}
public virtual void PdfUncoloredPatternColorSize1Test()
{
PdfDocument pdfDocument = new PdfDocument(new PdfWriter(new ByteArrayOutputStream()));
String contentColorSpace = "/Cs1 cs\n";
PdfDictionary pageDictionary = (PdfDictionary) new PdfDictionary().MakeIndirect(pdfDocument);
PdfStream contentStream = new PdfStream(contentColorSpace.GetBytes());
pageDictionary.Put(PdfName.Contents, contentStream);
PdfPage page = pdfDocument.AddNewPage();
page.GetPdfObject().Put(PdfName.Contents, contentStream);
PdfArray pdfArray = new PdfArray();
pdfArray.Add(PdfName.Pattern);
PdfColorSpace space = PdfColorSpace.MakeColorSpace(pdfArray);
page.GetResources().AddColorSpace(space);
Rectangle rectangle = new Rectangle(50, 50, 1000, 1000);
page.SetMediaBox(rectangle);
PdfCanvasProcessor processor = new PdfCanvasProcessor(new PdfArrayTest.NoOpListener());
processor.ProcessPageContent(page);
// Check if we reach the end of the test without failings together with verifying expected color space instance
NUnit.Framework.Assert.IsTrue(processor.GetGraphicsState().GetFillColor().GetColorSpace() is PdfSpecialCs.Pattern
);
}
/// <summary>
/// Gets the PixelFormat for the specified bits per pixel (bpp) or color depth.
/// </summary>
/// <param name="colorSpace">The colorspace of the image.</param>
/// <param name="bitsPerPixel">The number of bits per pixel.</param>
/// <param name="isIndexed">Optional parameters indicating if the bits are indexed. If indexed, then bitsPerPixel must be less than or equal to 8. Defaults to false.</param>
/// <returns>The pixel format to read the data from.</returns>
private static PixelFormat GetPixelFormat(PdfColorSpace colorSpace, int bitsPerPixel, bool isIndexed = false)
{
// The number of bits used to represent each color component.
// Only a single value may be specified; the number of bits is the same for all color components.
// Valid values are 1, 2, 4, and 8.
switch (bitsPerPixel)
{
case 1:
return(PixelFormat.Format1bppIndexed);
case 2:
return(PixelFormat.Format4bppIndexed);
case 4:
if (isIndexed)
{
return(PixelFormat.Format4bppIndexed);
}
break;
case 8:
if ((isIndexed) || (colorSpace is PdfGrayColorSpace))
{
return(PixelFormat.Format8bppIndexed);
}
return(PixelFormat.Format24bppRgb); // 8 bits per component x 3 (R,G,B) = 24
}
throw new ArgumentException(String.Format("The specified pixel depth '{0}' is not supported.", bitsPerPixel), "bitsPerPixel");
}
/// <summary>
/// Initializes the item based on the specified PdfDictionary.
/// </summary>
/// <param name="dictionary">The dictionary to use for initialization.</param>
private void Initialize(PdfDictionary dictionary)
{
if (dictionary == null)
{
throw new ArgumentNullException("dictionary", "The PDF dictionary item to extract image meta data from was null.");
}
if (!dictionary.IsImage())
{
throw new ArgumentException("The specified dictionary does not represent an image.", "dictionary");
}
Height = dictionary.Elements.GetInteger("/Height");
Width = dictionary.Elements.GetInteger("/Width");
BitsPerPixel = dictionary.Elements.GetInteger("/BitsPerComponent");
Length = dictionary.Elements.GetInteger("/Length");
PdfItem colorSpace = null;
if (dictionary.Elements.TryGetValue("/ColorSpace", out colorSpace))
{
ColorSpace = PdfDictionaryColorSpace.Parse(colorSpace);
}
else
{
ColorSpace = new PdfRGBColorSpace(); // Default to RGB Color Space
}
}
public virtual void NotEqualsNullObjectTest()
{
float[] colorValues = new float[] { 0.0f, 0.5f, 0.1f };
Color color1 = Color.MakeColor(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), colorValues);
bool result = color1.Equals(null);
NUnit.Framework.Assert.IsFalse(result);
}
private static PdfColorSpace EnsureNotPatternCs(PdfColorSpace underlyingCS)
{
if (underlyingCS is PdfSpecialCs.Pattern)
{
throw new ArgumentException("underlyingCS");
}
return(underlyingCS);
}
public virtual void MakeDeviceCmykNullColorValuesTest()
{
PdfColorSpace colorSpace = PdfColorSpace.MakeColorSpace(PdfName.DeviceCMYK);
Color color = Color.MakeColor(colorSpace);
NUnit.Framework.Assert.IsTrue(color is DeviceCmyk);
NUnit.Framework.Assert.AreEqual(new float[] { 0.0f, 0.0f, 0.0f, 1.0f }, color.GetColorValue());
}
public virtual void MakeDeviceCmykTest()
{
float[] colorValues = new float[] { 0.7f, 0.5f, 0.1f, 0.3f };
PdfColorSpace colorSpace = PdfColorSpace.MakeColorSpace(PdfName.DeviceCMYK);
Color color = Color.MakeColor(colorSpace, colorValues);
NUnit.Framework.Assert.IsTrue(color is DeviceCmyk);
NUnit.Framework.Assert.AreEqual(colorValues, color.GetColorValue());
}
public virtual void NotEqualsDifferentClassesTest()
{
float[] colorValues = new float[] { 0.0f, 0.5f, 0.1f };
Color color1 = Color.MakeColor(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), colorValues);
DeviceCmyk cmyk = new DeviceCmyk(0, 0, 0, 0);
bool result = color1.Equals(cmyk);
NUnit.Framework.Assert.IsFalse(result);
}
public PdfImageObject(int width, int height, PdfColorSpace colorSpace, int bitsPerComponent, byte[] data, params IPdfEncoder[] encoders)
{
Width = width;
Height = height;
ColorSpace = colorSpace;
BitsPerComponent = bitsPerComponent;
Data = data;
Encoders = encoders.ToList();
}
public virtual void EqualsAndHashCodeNullColorValuesTest()
{
Color color1 = new Color(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), null);
Color color2 = new Color(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), null);
bool result = color1.Equals(color2);
NUnit.Framework.Assert.IsTrue(result);
NUnit.Framework.Assert.AreEqual(color1.GetHashCode(), color2.GetHashCode());
}
public virtual void SetAndGetInteriorColorFloatArrayTest()
{
PdfLineAnnotation pdfLineAnnotation = new PdfLineAnnotation(new PdfDictionary());
float[] colorValues = new float[] { 0.0f, 0.5f, 0.1f };
pdfLineAnnotation.SetInteriorColor(colorValues);
Color expectedColor = Color.MakeColor(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), colorValues);
NUnit.Framework.Assert.AreEqual(expectedColor, pdfLineAnnotation.GetInteriorColor());
}
public virtual void SetColorValueIncorrectComponentsNumberTest()
{
NUnit.Framework.Assert.That(() => {
float[] colorValues = new float[] { 0.0f, 0.5f, 0.1f };
Color color = Color.MakeColor(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), colorValues);
color.SetColorValue(new float[] { 0.1f, 0.2f });
}
, NUnit.Framework.Throws.InstanceOf <PdfException>().With.Message.EqualTo(PdfException.IncorrectNumberOfComponents))
;
}
public PatternColor(PdfPattern.Tiling uncoloredPattern, PdfColorSpace underlyingCS, float[] colorValue)
: base(new PdfSpecialCs.UncoloredTilingPattern(underlyingCS), colorValue)
{
if (underlyingCS is PdfSpecialCs.Pattern)
{
throw new ArgumentException("underlyingCS");
}
this.pattern = uncoloredPattern;
this.underlyingColor = MakeColor(underlyingCS, colorValue);
}
public virtual void SetDefaultColorSpace(PdfName defaultCsKey, PdfColorSpace defaultCsValue)
{
if (!defaultCsKey.Equals(PdfName.DefaultCMYK) && !defaultCsKey.Equals(PdfName.DefaultGray) && !defaultCsKey
.Equals(PdfName.DefaultRGB))
{
throw new PdfException(PdfException.UnsupportedDefaultColorSpaceName1).SetMessageParams(defaultCsKey.ToString
());
}
AddResource(defaultCsValue.GetPdfObject(), PdfName.ColorSpace, defaultCsKey);
}
public virtual void EqualsAndHashCodeTest()
{
float[] colorValues = new float[] { 0.0f, 0.5f, 0.1f };
Color color1 = Color.MakeColor(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), colorValues);
Color color2 = Color.MakeColor(PdfColorSpace.MakeColorSpace(PdfName.DeviceRGB), colorValues);
bool result = color1.Equals(color2);
NUnit.Framework.Assert.IsTrue(result);
NUnit.Framework.Assert.AreEqual(color1.GetHashCode(), color2.GetHashCode());
}
/// <summary>Creates a Color of certain color space and color value.</summary>
/// <remarks>
/// Creates a Color of certain color space and color value.
/// If color value is set in null, all value components will be initialised with zeroes.
/// </remarks>
/// <param name="colorSpace">the color space to which the created Color object relates</param>
/// <param name="colorValue">the color value of the created Color object</param>
protected internal Color(PdfColorSpace colorSpace, float[] colorValue)
{
this.colorSpace = colorSpace;
if (colorValue == null)
{
this.colorValue = new float[colorSpace.GetNumberOfComponents()];
}
else
{
this.colorValue = colorValue;
}
}
public virtual void MakeDeviceNNullColorValuesTest()
{
PdfArray deviceN = new PdfArray();
deviceN.Add(PdfName.DeviceN);
deviceN.Add(new PdfArray());
deviceN.Add(null);
deviceN.Add(null);
PdfColorSpace colorSpace = PdfColorSpace.MakeColorSpace(deviceN);
Color color = Color.MakeColor(colorSpace);
NUnit.Framework.Assert.IsTrue(color is DeviceN);
NUnit.Framework.Assert.AreEqual(new float[] { }, color.GetColorValue());
}
public virtual void MakeIndexedNullColorValuesTest()
{
PdfArray indexed = new PdfArray();
indexed.Add(PdfName.Indexed);
indexed.Add(new PdfArray());
indexed.Add(null);
indexed.Add(null);
PdfColorSpace colorSpace = PdfColorSpace.MakeColorSpace(indexed);
Color color = Color.MakeColor(colorSpace);
NUnit.Framework.Assert.IsTrue(color is Indexed);
NUnit.Framework.Assert.AreEqual(new float[] { 0.0f }, color.GetColorValue());
}
public override void CheckColorSpace(PdfColorSpace colorSpace, PdfDictionary currentColorSpaces, bool checkAlternate
, bool?fill)
{
if (colorSpace is PdfSpecialCs.Separation)
{
colorSpace = ((PdfSpecialCs.Separation)colorSpace).GetBaseCs();
}
else
{
if (colorSpace is PdfSpecialCs.DeviceN)
{
PdfSpecialCs.DeviceN deviceNColorspace = (PdfSpecialCs.DeviceN)colorSpace;
if (deviceNColorspace.GetNumberOfComponents() > MAX_NUMBER_OF_DEVICEN_COLOR_COMPONENTS)
{
throw new PdfAConformanceException(PdfAConformanceException.THE_NUMBER_OF_COLOR_COMPONENTS_IN_DEVICE_N_COLORSPACE_SHOULD_NOT_EXCEED
, MAX_NUMBER_OF_DEVICEN_COLOR_COMPONENTS);
}
colorSpace = deviceNColorspace.GetBaseCs();
}
}
if (colorSpace is PdfDeviceCs.Rgb)
{
if (cmykIsUsed)
{
throw new PdfAConformanceException(PdfAConformanceException.DEVICERGB_AND_DEVICECMYK_COLORSPACES_CANNOT_BE_USED_BOTH_IN_ONE_FILE
);
}
rgbIsUsed = true;
}
else
{
if (colorSpace is PdfDeviceCs.Cmyk)
{
if (rgbIsUsed)
{
throw new PdfAConformanceException(PdfAConformanceException.DEVICERGB_AND_DEVICECMYK_COLORSPACES_CANNOT_BE_USED_BOTH_IN_ONE_FILE
);
}
cmykIsUsed = true;
}
else
{
if (colorSpace is PdfDeviceCs.Gray)
{
grayIsUsed = true;
}
}
}
}
public virtual void MakeLabNullColorValuesTest()
{
PdfDictionary dictionary = new PdfDictionary();
dictionary.Put(PdfName.Gamma, new PdfNumber(2.2));
PdfArray calLab = new PdfArray();
calLab.Add(PdfName.Lab);
calLab.Add(dictionary);
PdfColorSpace colorSpace = PdfColorSpace.MakeColorSpace(calLab);
Color color = Color.MakeColor(colorSpace);
NUnit.Framework.Assert.IsTrue(color is Lab);
NUnit.Framework.Assert.AreEqual(new float[] { 0.0f, 0.0f, 0.0f }, color.GetColorValue());
}
public virtual void MakeCalRgbTest()
{
PdfDictionary dictionary = new PdfDictionary();
dictionary.Put(PdfName.Gamma, new PdfNumber(2.2));
PdfArray calRgb = new PdfArray();
calRgb.Add(PdfName.CalRGB);
calRgb.Add(dictionary);
PdfColorSpace colorSpace = PdfColorSpace.MakeColorSpace(calRgb);
float[] colorValues = new float[] { 0.7f, 0.5f, 0.1f };
Color color = Color.MakeColor(colorSpace, colorValues);
NUnit.Framework.Assert.IsTrue(color is CalRgb);
NUnit.Framework.Assert.AreEqual(colorValues, color.GetColorValue());
}
public static string ToPatternName(this PdfColorSpace colorSpace)
{
switch (colorSpace)
{
case PdfColorSpace.DeviceGray:
return("DeviceGray");
case PdfColorSpace.DeviceRGB:
return("DeviceRGB");
case PdfColorSpace.DeviceCMYK:
return("DeviceCMYK");
default:
throw new ArgumentException(nameof(colorSpace));
}
}
public virtual void PatternColorParsingValidPdfTest()
{
String inputFile = sourceFolder + "patternColorParsingValidPdfTest.pdf";
PdfDocument pdfDocument = new PdfDocument(new PdfReader(inputFile));
for (int i = 1; i <= pdfDocument.GetNumberOfPages(); ++i)
{
PdfPage page = pdfDocument.GetPage(i);
PdfCanvasProcessorIntegrationTest.ColorParsingEventListener colorParsingEventListener = new PdfCanvasProcessorIntegrationTest.ColorParsingEventListener
();
PdfCanvasProcessor processor = new PdfCanvasProcessor(colorParsingEventListener);
processor.ProcessPageContent(page);
PathRenderInfo renderInfo = colorParsingEventListener.GetEncounteredPath();
PdfColorSpace colorSpace = renderInfo.GetGraphicsState().GetFillColor().GetColorSpace();
NUnit.Framework.Assert.IsTrue(colorSpace is PdfSpecialCs.Pattern);
}
}
public override void CheckColorSpace(PdfColorSpace colorSpace, PdfDictionary currentColorSpaces, bool checkAlternate
, bool?fill)
{
if (colorSpace is PdfSpecialCs.Separation)
{
colorSpace = ((PdfSpecialCs.Separation)colorSpace).GetBaseCs();
}
else
{
if (colorSpace is PdfSpecialCs.DeviceN)
{
colorSpace = ((PdfSpecialCs.DeviceN)colorSpace).GetBaseCs();
}
}
if (colorSpace is PdfDeviceCs.Rgb)
{
if (cmykIsUsed)
{
throw new PdfAConformanceException(PdfAConformanceException.DevicergbAndDevicecmykColorspacesCannotBeUsedBothInOneFile
);
}
rgbIsUsed = true;
}
else
{
if (colorSpace is PdfDeviceCs.Cmyk)
{
if (rgbIsUsed)
{
throw new PdfAConformanceException(PdfAConformanceException.DevicergbAndDevicecmykColorspacesCannotBeUsedBothInOneFile
);
}
cmykIsUsed = true;
}
else
{
if (colorSpace is PdfDeviceCs.Gray)
{
grayIsUsed = true;
}
}
}
}
public override void CheckColorSpace(PdfColorSpace colorSpace, PdfDictionary currentColorSpaces, bool checkAlternate
, bool?fill)
{
if (colorSpace is PdfSpecialCs.Separation)
{
colorSpace = ((PdfSpecialCs.Separation)colorSpace).GetBaseCs();
}
else
{
if (colorSpace is PdfSpecialCs.DeviceN)
{
colorSpace = ((PdfSpecialCs.DeviceN)colorSpace).GetBaseCs();
}
}
if (colorSpace is PdfDeviceCs.Rgb)
{
if (cmykIsUsed)
{
throw new PdfAConformanceException(PdfAConformanceException.DEVICERGB_AND_DEVICECMYK_COLORSPACES_CANNOT_BE_USED_BOTH_IN_ONE_FILE
);
}
rgbIsUsed = true;
}
else
{
if (colorSpace is PdfDeviceCs.Cmyk)
{
if (rgbIsUsed)
{
throw new PdfAConformanceException(PdfAConformanceException.DEVICERGB_AND_DEVICECMYK_COLORSPACES_CANNOT_BE_USED_BOTH_IN_ONE_FILE
);
}
cmykIsUsed = true;
}
else
{
if (colorSpace is PdfDeviceCs.Gray)
{
grayIsUsed = true;
}
}
}
}
/// <summary>
/// Gets the PixelFormat for the specified bits per pixel (bpp) or color depth.
/// </summary>
/// <param name="colorSpace">The colorspace of the image.</param>
/// <param name="bitsPerPixel">The number of bits per pixel.</param>
/// <param name="isIndexed">Optional parameters indicating if the bits are indexed. If indexed, then bitsPerPixel must be less than or equal to 8. Defaults to false.</param>
/// <returns>The pixel format to read the data from.</returns>
private static PixelFormat GetPixelFormat(PdfColorSpace colorSpace, int bitsPerPixel, bool isIndexed = false)
{
// The number of bits used to represent each color component.
// Only a single value may be specified; the number of bits is the same for all color components.
// Valid values are 1, 2, 4, and 8.
switch(bitsPerPixel) {
case 1:
return (PixelFormat.Format1bppIndexed);
case 2:
return (PixelFormat.Format4bppIndexed);
case 4:
if (isIndexed) { return (PixelFormat.Format4bppIndexed); }
break;
case 8:
if ((isIndexed) || (colorSpace is PdfGrayColorSpace)) return (PixelFormat.Format8bppIndexed);
return (PixelFormat.Format24bppRgb); // 8 bits per component x 3 (R,G,B) = 24
}
throw new ArgumentException(String.Format("The specified pixel depth '{0}' is not supported.", bitsPerPixel), "bitsPerPixel");
}
protected internal virtual void CheckResources(PdfDictionary resources)
{
if (resources == null)
{
return;
}
PdfDictionary xObjects = resources.GetAsDictionary(PdfName.XObject);
PdfDictionary shadings = resources.GetAsDictionary(PdfName.Shading);
if (xObjects != null)
{
foreach (PdfObject xObject in xObjects.Values())
{
PdfStream xObjStream = (PdfStream)xObject;
PdfObject subtype = xObjStream.Get(PdfName.Subtype);
if (PdfName.Image.Equals(subtype))
{
CheckImage(xObjStream, resources.GetAsDictionary(PdfName.ColorSpace));
}
else
{
if (PdfName.Form.Equals(subtype))
{
CheckFormXObject(xObjStream);
}
}
}
}
if (shadings != null)
{
foreach (PdfObject shading in shadings.Values())
{
PdfDictionary shadingDict = (PdfDictionary)shading;
CheckColorSpace(PdfColorSpace.MakeColorSpace(shadingDict.Get(PdfName.ColorSpace)), resources.GetAsDictionary
(PdfName.ColorSpace), true, null);
}
}
}
// if symbolic font encoding doesn't have differences, itext7 won't write encoding for such font
protected internal override void CheckImage(PdfStream image, PdfDictionary currentColorSpaces)
{
PdfColorSpace colorSpace = null;
if (IsAlreadyChecked(image))
{
colorSpace = checkedObjectsColorspace.Get(image);
CheckColorSpace(colorSpace, currentColorSpaces, true, null);
return;
}
PdfObject colorSpaceObj = image.Get(PdfName.ColorSpace);
if (colorSpaceObj != null)
{
colorSpace = PdfColorSpace.MakeColorSpace(colorSpaceObj);
CheckColorSpace(colorSpace, currentColorSpaces, true, null);
checkedObjectsColorspace.Put(image, colorSpace);
}
if (image.ContainsKey(PdfName.Alternates))
{
throw new PdfAConformanceException(PdfAConformanceException.AN_IMAGE_DICTIONARY_SHALL_NOT_CONTAIN_ALTERNATES_KEY
);
}
if (image.ContainsKey(PdfName.OPI))
{
throw new PdfAConformanceException(PdfAConformanceException.AN_IMAGE_DICTIONARY_SHALL_NOT_CONTAIN_OPI_KEY);
}
if (image.ContainsKey(PdfName.Interpolate) && (bool)image.GetAsBool(PdfName.Interpolate))
{
throw new PdfAConformanceException(PdfAConformanceException.THE_VALUE_OF_INTERPOLATE_KEY_SHALL_BE_FALSE);
}
CheckRenderingIntent(image.GetAsName(PdfName.Intent));
if (image.ContainsKey(PdfName.SMask) && !PdfName.None.Equals(image.GetAsName(PdfName.SMask)))
{
throw new PdfAConformanceException(PdfAConformanceException.THE_SMASK_KEY_IS_NOT_ALLOWED_IN_XOBJECTS);
}
}
// if symbolic font encoding doesn't have differences, itext7 won't write encoding for such font
protected internal override void CheckImage(PdfStream image, PdfDictionary currentColorSpaces)
{
PdfColorSpace colorSpace = null;
if (IsAlreadyChecked(image))
{
colorSpace = checkedObjectsColorspace.Get(image);
CheckColorSpace(colorSpace, currentColorSpaces, true, null);
return;
}
PdfObject colorSpaceObj = image.Get(PdfName.ColorSpace);
if (colorSpaceObj != null)
{
colorSpace = PdfColorSpace.MakeColorSpace(colorSpaceObj);
CheckColorSpace(colorSpace, currentColorSpaces, true, null);
checkedObjectsColorspace[image] = colorSpace;
}
if (image.ContainsKey(PdfName.Alternates))
{
throw new PdfAConformanceException(PdfAConformanceException.AnImageDictionaryShallNotContainAlternatesKey);
}
if (image.ContainsKey(PdfName.OPI))
{
throw new PdfAConformanceException(PdfAConformanceException.AnImageDictionaryShallNotContainOpiKey);
}
if (image.ContainsKey(PdfName.Interpolate) && (bool)image.GetAsBool(PdfName.Interpolate))
{
throw new PdfAConformanceException(PdfAConformanceException.TheValueOfInterpolateKeyShallNotBeTrue);
}
CheckRenderingIntent(image.GetAsName(PdfName.Intent));
if (image.ContainsKey(PdfName.SMask) && !PdfName.None.Equals(image.GetAsName(PdfName.SMask)))
{
throw new PdfAConformanceException(PdfAConformanceException.TheSmaskKeyIsNotAllowedInXobjects);
}
}
protected internal virtual void CheckResources(PdfDictionary resources)
{
if (resources == null)
{
return;
}
PdfDictionary xObjects = resources.GetAsDictionary(PdfName.XObject);
PdfDictionary shadings = resources.GetAsDictionary(PdfName.Shading);
PdfDictionary patterns = resources.GetAsDictionary(PdfName.Pattern);
if (xObjects != null)
{
foreach (PdfObject xObject in xObjects.Values())
{
PdfStream xObjStream = (PdfStream)xObject;
PdfObject subtype = null;
bool isFlushed = xObjStream.IsFlushed();
if (!isFlushed)
{
subtype = xObjStream.Get(PdfName.Subtype);
}
if (PdfName.Image.Equals(subtype) || isFlushed)
{
// if flushed still may be need to check colorspace in given context
CheckImage(xObjStream, resources.GetAsDictionary(PdfName.ColorSpace));
}
else
{
if (PdfName.Form.Equals(subtype))
{
CheckFormXObject(xObjStream);
}
}
}
}
if (shadings != null)
{
foreach (PdfObject shading in shadings.Values())
{
PdfDictionary shadingDict = (PdfDictionary)shading;
if (!IsAlreadyChecked(shadingDict))
{
CheckColorSpace(PdfColorSpace.MakeColorSpace(shadingDict.Get(PdfName.ColorSpace)), resources.GetAsDictionary
(PdfName.ColorSpace), true, null);
}
}
}
if (patterns != null)
{
foreach (PdfObject p in patterns.Values())
{
if (p.IsStream())
{
PdfStream pStream = (PdfStream)p;
if (!IsAlreadyChecked(pStream))
{
CheckResources(pStream.GetAsDictionary(PdfName.Resources));
}
}
}
}
}
/// <summary>
/// Initializes the item based on the specified PdfDictionary.
/// </summary>
/// <param name="dictionary">The dictionary to use for initialization.</param>
private void Initialize(PdfDictionary dictionary)
{
if (dictionary == null) throw new ArgumentNullException("dictionary", "The PDF dictionary item to extract image meta data from was null.");
if (!dictionary.IsImage()) throw new ArgumentException("The specified dictionary does not represent an image.", "dictionary");
Height = dictionary.Elements.GetInteger("/Height");
Width = dictionary.Elements.GetInteger("/Width");
BitsPerPixel = dictionary.Elements.GetInteger("/BitsPerComponent");
Length = dictionary.Elements.GetInteger("/Length");
PdfItem colorSpace = null;
if (dictionary.Elements.TryGetValue("/ColorSpace", out colorSpace)) {
ColorSpace = PdfDictionaryColorSpace.Parse(colorSpace);
}
else ColorSpace = new PdfRGBColorSpace(); // Default to RGB Color Space
}
