public ImageArea(FontState fontState, FonetImage img, int AllocationWidth,
int width, int height, int startIndent, int endIndent,
int align)
: base(fontState, width, 0, 0, 0)
{
this.currentHeight = height;
this.contentRectangleWidth = width;
this.height = height;
this.image = img;
this.align = align;
}
public ImageArea(FontState fontState, FonetImage img, int AllocationWidth,
int width, int height, int startIndent, int endIndent,
int align)
: base(fontState, width, 0, 0, 0)
{
this.currentHeight = height;
this.contentRectangleWidth = width;
this.height = height;
this.image = img;
this.align = align;
}
public PdfXObject AddImage(FonetImage img)
{
// check if already created
string url = img.Uri;
PdfXObject xObject = (PdfXObject)this.xObjectsMap[url];
if (xObject == null)
{
PdfICCStream iccStream = null;
ColorSpace cs = img.ColorSpace;
if (cs.HasICCProfile())
{
iccStream = new PdfICCStream(doc.NextObjectId(), cs.GetICCProfile());
iccStream.NumComponents = new PdfNumeric(cs.GetNumComponents());
iccStream.AddFilter(new FlateFilter());
this.objects.Add(iccStream);
}
// else, create a new one
PdfName name = new PdfName("XO" + xObjectsMap.Count);
xObject = new PdfXObject(img.Bitmaps, name, doc.NextObjectId());
xObject.SubType = PdfName.Names.Image;
xObject.Dictionary[PdfName.Names.Width] = new PdfNumeric(img.Width);
xObject.Dictionary[PdfName.Names.Height] = new PdfNumeric(img.Height);
xObject.Dictionary[PdfName.Names.BitsPerComponent] = new PdfNumeric(img.BitsPerPixel);
// Check for ICC color space
if (iccStream != null)
{
PdfArray ar = new PdfArray();
ar.Add(PdfName.Names.ICCBased);
ar.Add(iccStream.GetReference());
xObject.Dictionary[PdfName.Names.ColorSpace] = ar;
}
else
{
xObject.Dictionary[PdfName.Names.ColorSpace] = new PdfName(img.ColorSpace.GetColorSpacePDFString());
}
xObject.AddFilter(img.Filter);
this.objects.Add(xObject);
this.xObjectsMap.Add(url, xObject);
}
return xObject;
}
/// <summary>
/// Renders an image, clipping it as specified.
/// </summary>
/// <param name="x">The x position of left edge in millipoints.</param>
/// <param name="y">The y position of top edge in millipoints.</param>
/// <param name="clipX">The left edge of the clip in millipoints.</param>
/// <param name="clipY">The top edge of the clip in millipoints.</param>
/// <param name="clipW">The clip width in millipoints.</param>
/// <param name="clipH">The clip height in millipoints.</param>
/// <param name="image">The image to be rendered.</param>
private void DrawImageClipped(
int x, int y, int clipX, int clipY,
int clipW, int clipH, FonetImage image) {
float cx1 = ((float) x)/1000f;
float cy1 = ((float) y - clipH)/1000f;
float cx2 = ((float) x + clipW)/1000f;
float cy2 = ((float) y)/1000f;
int imgX = x - clipX;
int imgY = y - clipY;
int imgW = image.Width*1000;
int imgH = image.Height*1000;
PdfXObject xobj = this.pdfDoc.AddImage(image);
CloseText();
currentStream.Write("ET\nq\n" +
// clipping
PdfNumber.doubleOut(cx1) + " " + PdfNumber.doubleOut(cy1) + " m\n" +
PdfNumber.doubleOut(cx2) + " " + PdfNumber.doubleOut(cy1) + " l\n" +
PdfNumber.doubleOut(cx2) + " " + PdfNumber.doubleOut(cy2) + " l\n" +
PdfNumber.doubleOut(cx1) + " " + PdfNumber.doubleOut(cy2) + " l\n" +
"W\n" +
"n\n" +
// image matrix
PdfNumber.doubleOut(((float) imgW)/1000f) + " 0 0 " +
PdfNumber.doubleOut(((float) imgH)/1000f) + " " +
PdfNumber.doubleOut(((float) imgX)/1000f) + " " +
PdfNumber.doubleOut(((float) imgY - imgH)/1000f) + " cm\n" +
"s\n" +
// the image itself
"/" + xobj.Name.Name + " Do\nQ\nBT\n");
}
/// <summary>
/// Renders an image, scaling it to the given width and height.
/// If the scaled width and height is the same intrinsic size
/// of the image, the image is not scaled
/// </summary>
/// <param name="x">The x position of left edge in millipoints.</param>
/// <param name="y">The y position of top edge in millipoints.</param>
/// <param name="w">The width in millipoints.</param>
/// <param name="h">The height in millipoints.</param>
/// <param name="image">The image to be rendered.</param>
private void DrawImageScaled(
int x, int y, int w, int h, FonetImage image) {
PdfXObject xobj = this.pdfDoc.AddImage(image);
CloseText();
currentStream.Write("ET\nq\n" + PdfNumber.doubleOut(((float) w)/1000f) + " 0 0 "
+ PdfNumber.doubleOut(((float) h)/1000f) + " "
+ PdfNumber.doubleOut(((float) x)/1000f) + " "
+ PdfNumber.doubleOut(((float) (y - h))/1000f) + " cm\n" + "/" + xobj.Name.Name
+ " Do\nQ\nBT\n");
}
/// <summary>
/// Renders an image, rendered at the image's intrinsic size.
/// This by default calls drawImageScaled() with the image's
/// intrinsic width and height, but implementations may
/// override this method if it can provide a more efficient solution.
/// </summary>
/// <param name="x">The x position of left edge in millipoints.</param>
/// <param name="y">The y position of top edge in millipoints.</param>
/// <param name="image">The image to be rendered.</param>
private void DrawImage(int x, int y, FonetImage image) {
int w = image.Width*1000;
int h = image.Height*1000;
DrawImageScaled(x, y, w, h, image);
}
