use of com.tom_roush.pdfbox.pdmodel.font.PDType1Font in project PdfBox-Android by TomRoush.
the class PageDrawer method createGlyph2D.
/**
* Provide a Glyph2D for the given font.
*
* @param font the font
* @return the implementation of the Glyph2D interface for the given font
* @throws IOException if something went wrong
*/
private Glyph2D createGlyph2D(PDFont font) throws IOException {
Glyph2D glyph2D = fontGlyph2D.get(font);
// Is there already a Glyph2D for the given font?
if (glyph2D != null) {
return glyph2D;
}
if (font instanceof PDTrueTypeFont) {
PDTrueTypeFont ttfFont = (PDTrueTypeFont) font;
// TTF is never null
glyph2D = new TTFGlyph2D(ttfFont);
} else if (font instanceof PDType1Font) {
PDType1Font pdType1Font = (PDType1Font) font;
// T1 is never null
glyph2D = new Type1Glyph2D(pdType1Font);
} else if (font instanceof PDType1CFont) {
PDType1CFont type1CFont = (PDType1CFont) font;
glyph2D = new Type1Glyph2D(type1CFont);
} else if (font instanceof PDType0Font) {
PDType0Font type0Font = (PDType0Font) font;
if (type0Font.getDescendantFont() instanceof PDCIDFontType2) {
// TTF is never null
glyph2D = new TTFGlyph2D(type0Font);
} else if (type0Font.getDescendantFont() instanceof PDCIDFontType0) {
// a Type0 CIDFont contains CFF font
PDCIDFontType0 cidType0Font = (PDCIDFontType0) type0Font.getDescendantFont();
// todo: could be null (need incorporate fallback)
glyph2D = new CIDType0Glyph2D(cidType0Font);
}
} else {
throw new IllegalStateException("Bad font type: " + font.getClass().getSimpleName());
}
// cache the Glyph2D instance
if (glyph2D != null) {
fontGlyph2D.put(font, glyph2D);
}
if (glyph2D == null) {
// todo: make sure this never happens
throw new UnsupportedOperationException("No font for " + font.getName());
}
return glyph2D;
}
use of com.tom_roush.pdfbox.pdmodel.font.PDType1Font in project PdfBox-Android by TomRoush.
the class PDLineAppearanceHandler method generateNormalAppearance.
@Override
public void generateNormalAppearance() {
PDAnnotationLine annotation = (PDAnnotationLine) getAnnotation();
PDRectangle rect = annotation.getRectangle();
float[] pathsArray = annotation.getLine();
if (pathsArray == null) {
return;
}
AnnotationBorder ab = AnnotationBorder.getAnnotationBorder(annotation, annotation.getBorderStyle());
PDColor color = annotation.getColor();
if (color == null || color.getComponents().length == 0) {
return;
}
float ll = annotation.getLeaderLineLength();
float lle = annotation.getLeaderLineExtensionLength();
float llo = annotation.getLeaderLineOffsetLength();
// Adjust rectangle even if not empty, see PLPDF.com-MarkupAnnotations.pdf
float minX = Float.MAX_VALUE;
float minY = Float.MAX_VALUE;
float maxX = Float.MIN_VALUE;
float maxY = Float.MIN_VALUE;
for (int i = 0; i < pathsArray.length / 2; ++i) {
float x = pathsArray[i * 2];
float y = pathsArray[i * 2 + 1];
minX = Math.min(minX, x);
minY = Math.min(minY, y);
maxX = Math.max(maxX, x);
maxY = Math.max(maxY, y);
}
// Leader lines
if (ll < 0) {
// /LLO and /LLE go in the same direction as /LL
llo = -llo;
lle = -lle;
}
// observed with diagonal line of AnnotationSample.Standard.pdf
// for line endings, very small widths must be treated as size 1.
// However the border of the line ending shapes is not drawn.
float lineEndingSize = (ab.width < 1e-5) ? 1 : ab.width;
// add/subtract with, font height, and arrows
// arrow length is 9 * width at about 30° => 10 * width seems to be enough
// but need to consider /LL, /LLE and /LLO too
// TODO find better way to calculate padding
rect.setLowerLeftX(Math.min(minX - Math.max(lineEndingSize * 10, Math.abs(llo + ll + lle)), rect.getLowerLeftX()));
rect.setLowerLeftY(Math.min(minY - Math.max(lineEndingSize * 10, Math.abs(llo + ll + lle)), rect.getLowerLeftY()));
rect.setUpperRightX(Math.max(maxX + Math.max(lineEndingSize * 10, Math.abs(llo + ll + lle)), rect.getUpperRightX()));
rect.setUpperRightY(Math.max(maxY + Math.max(lineEndingSize * 10, Math.abs(llo + ll + lle)), rect.getUpperRightY()));
annotation.setRectangle(rect);
PDAppearanceContentStream cs = null;
try {
cs = getNormalAppearanceAsContentStream();
setOpacity(cs, annotation.getConstantOpacity());
// Tested with Adobe Reader:
// text is written first (TODO)
// width 0 is used by Adobe as such (but results in a visible line in rendering)
// empty color array results in an invisible line ("n" operator) but the rest is visible
// empty content is like no caption
boolean hasStroke = cs.setStrokingColorOnDemand(color);
if (ab.dashArray != null) {
cs.setLineDashPattern(ab.dashArray, 0);
}
cs.setLineWidth(ab.width);
float x1 = pathsArray[0];
float y1 = pathsArray[1];
float x2 = pathsArray[2];
float y2 = pathsArray[3];
// if there are leader lines, then the /L coordinates represent
// the endpoints of the leader lines rather than the endpoints of the line itself.
// so for us, llo + ll is the vertical offset for the line.
float y = llo + ll;
String contents = annotation.getContents();
if (contents == null) {
contents = "";
}
cs.saveGraphicsState();
double angle = Math.atan2(y2 - y1, x2 - x1);
cs.transform(Matrix.getRotateInstance(angle, x1, y1));
float lineLength = (float) Math.sqrt(((x2 - x1) * (x2 - x1)) + ((y2 - y1) * (y2 - y1)));
// Leader lines
cs.moveTo(0, llo);
cs.lineTo(0, llo + ll + lle);
cs.moveTo(lineLength, llo);
cs.lineTo(lineLength, llo + ll + lle);
if (annotation.getCaption() && !contents.isEmpty()) {
// Note that Adobe places the text as a caption even if /CP is not set
// when the text is so long that it would cross arrows, but we ignore this for now
// and stick to the specification.
PDType1Font font = PDType1Font.HELVETICA;
// TODO: support newlines!!!!!
// see https://www.pdfill.com/example/pdf_commenting_new.pdf
float contentLength = 0;
try {
contentLength = font.getStringWidth(annotation.getContents()) / 1000 * FONT_SIZE;
// TODO How to decide the size of the font?
// 9 seems to be standard, but if the text doesn't fit, a scaling is done
// see AnnotationSample.Standard.pdf, diagonal line
} catch (IllegalArgumentException ex) {
// Adobe Reader displays placeholders instead
Log.e("PdfBox-Android", "line text '" + annotation.getContents() + "' can't be shown", ex);
}
float xOffset = (lineLength - contentLength) / 2;
float yOffset;
String captionPositioning = annotation.getCaptionPositioning();
// that's the easiest way to calculate the positions for the line before and after inline caption
if (SHORT_STYLES.contains(annotation.getStartPointEndingStyle())) {
cs.moveTo(lineEndingSize, y);
} else {
cs.moveTo(0, y);
}
if ("Top".equals(captionPositioning)) {
// this arbitrary number is from Adobe
yOffset = 1.908f;
} else {
// Inline
// this arbitrary number is from Adobe
yOffset = -2.6f;
cs.lineTo(xOffset - lineEndingSize, y);
cs.moveTo(lineLength - xOffset + lineEndingSize, y);
}
if (SHORT_STYLES.contains(annotation.getEndPointEndingStyle())) {
cs.lineTo(lineLength - lineEndingSize, y);
} else {
cs.lineTo(lineLength, y);
}
cs.drawShape(lineEndingSize, hasStroke, false);
// /CO entry (caption offset)
float captionHorizontalOffset = annotation.getCaptionHorizontalOffset();
float captionVerticalOffset = annotation.getCaptionVerticalOffset();
// check contentLength so we don't show if there was trouble before
if (contentLength > 0) {
cs.beginText();
cs.setFont(font, FONT_SIZE);
cs.newLineAtOffset(xOffset + captionHorizontalOffset, y + yOffset + captionVerticalOffset);
cs.showText(annotation.getContents());
cs.endText();
}
if (Float.compare(captionVerticalOffset, 0) != 0) {
// Adobe paints vertical bar to the caption
cs.moveTo(0 + lineLength / 2, y);
cs.lineTo(0 + lineLength / 2, y + captionVerticalOffset);
cs.drawShape(lineEndingSize, hasStroke, false);
}
} else {
if (SHORT_STYLES.contains(annotation.getStartPointEndingStyle())) {
cs.moveTo(lineEndingSize, y);
} else {
cs.moveTo(0, y);
}
if (SHORT_STYLES.contains(annotation.getEndPointEndingStyle())) {
cs.lineTo(lineLength - lineEndingSize, y);
} else {
cs.lineTo(lineLength, y);
}
cs.drawShape(lineEndingSize, hasStroke, false);
}
cs.restoreGraphicsState();
// paint the styles here and not before showing the text, or the text would appear
// with the interior color
boolean hasBackground = cs.setNonStrokingColorOnDemand(annotation.getInteriorColor());
// is not drawn.
if (ab.width < 1e-5) {
hasStroke = false;
}
// check for LE_NONE only needed to avoid q cm Q for that case
if (!LE_NONE.equals(annotation.getStartPointEndingStyle())) {
cs.saveGraphicsState();
if (ANGLED_STYLES.contains(annotation.getStartPointEndingStyle())) {
cs.transform(Matrix.getRotateInstance(angle, x1, y1));
drawStyle(annotation.getStartPointEndingStyle(), cs, 0, y, lineEndingSize, hasStroke, hasBackground, false);
} else {
// Support of non-angled styles is more difficult than in the other handlers
// because the lines do not always go from (x1,y1) to (x2,y2) due to the leader lines
// when the "y" value above is not 0.
// We use the angle we already know and the distance y to translate to the new coordinate.
float xx1 = x1 - (float) (y * Math.sin(angle));
float yy1 = y1 + (float) (y * Math.cos(angle));
drawStyle(annotation.getStartPointEndingStyle(), cs, xx1, yy1, lineEndingSize, hasStroke, hasBackground, false);
}
cs.restoreGraphicsState();
}
// check for LE_NONE only needed to avoid q cm Q for that case
if (!LE_NONE.equals(annotation.getEndPointEndingStyle())) {
// save / restore not needed because it's the last one
if (ANGLED_STYLES.contains(annotation.getEndPointEndingStyle())) {
cs.transform(Matrix.getRotateInstance(angle, x2, y2));
drawStyle(annotation.getEndPointEndingStyle(), cs, 0, y, lineEndingSize, hasStroke, hasBackground, true);
} else {
// Support of non-angled styles is more difficult than in the other handlers
// because the lines do not always go from (x1,y1) to (x2,y2) due to the leader lines
// when the "y" value above is not 0.
// We use the angle we already know and the distance y to translate to the new coordinate.
float xx2 = x2 - (float) (y * Math.sin(angle));
float yy2 = y2 + (float) (y * Math.cos(angle));
drawStyle(annotation.getEndPointEndingStyle(), cs, xx2, yy2, lineEndingSize, hasStroke, hasBackground, true);
}
}
} catch (IOException ex) {
Log.e("PdfBox-Android", ex.getMessage(), ex);
} finally {
IOUtils.closeQuietly(cs);
}
}
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