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handles use, svg, symbol, switch and gradients with 0 or 1 stops 


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@193702 13f79535-47bb-0310-9956-ffa450edef68
tags/pre-columns
Keiron Liddle vor 24 Jahren
Ursprung
3b4d27ab77
Commit
befab9de32
1 geänderte Dateien mit 269 neuen und 35 gelöschten Zeilen
Geteilte Ansicht Diff-Statistik anzeigen
  1. 269
    35
      src/org/apache/fop/render/pdf/PDFRenderer.java

+ 269
- 35
src/org/apache/fop/render/pdf/PDFRenderer.java Datei anzeigen

@@ -430,6 +430,7 @@ public class PDFRenderer implements Renderer {
area.getObject().render(this);
currentStream.add("Q\n");
currentStream.add("BT\n");
this.currentXPosition += area.getEffectiveWidth();
this.currentYPosition -= area.getEffectiveHeight();
}

@@ -678,7 +679,7 @@ public class PDFRenderer implements Renderer {
SVGList rflist = ael.getRequiredFeatures();
SVGList sllist = ael.getSystemLanguage();
org.w3c.dom.NodeList nl = ael.getChildNodes();
for(int count = 0; count < nl.getLength(); count++) {
choices: for(int count = 0; count < nl.getLength(); count++) {
org.w3c.dom.Node n = nl.item(count);
// only render the first child that has a valid
// test data
@@ -687,13 +688,18 @@ public class PDFRenderer implements Renderer {
SVGList grelist = graphic.getRequiredExtensions();
// if null it evaluates to true
if(grelist != null) {
if(grelist.getNumberOfItems() == 0) {
if((relist != null) && relist.getNumberOfItems() != 0) {
continue choices;
}
}
for(int i = 0; i < grelist.getNumberOfItems(); i++) {
String str = (String)grelist.getItem(i);
if(relist == null) {
// use default extension set
// currently no extensions are supported
// if(!(str.equals("http:// ??"))) {
continue;
continue choices;
// }
} else {
}
@@ -701,13 +707,18 @@ public class PDFRenderer implements Renderer {
}
SVGList grflist = graphic.getRequiredFeatures();
if(grflist != null) {
if(grflist.getNumberOfItems() == 0) {
if((rflist != null) && rflist.getNumberOfItems() != 0) {
continue choices;
}
}
for(int i = 0; i < grflist.getNumberOfItems(); i++) {
String str = (String)grflist.getItem(i);
if(rflist == null) {
// use default feature set
if(!(str.equals("org.w3c.svg.static")
|| str.equals("org.w3c.dom.svg.all"))) {
continue;
continue choices;
}
} else {
boolean found = false;
@@ -718,18 +729,23 @@ public class PDFRenderer implements Renderer {
}
}
if(!found)
continue;
continue choices;
}
}
}
SVGList gsllist = graphic.getSystemLanguage();
if(gsllist != null) {
if(gsllist.getNumberOfItems() == 0) {
if((sllist != null) && sllist.getNumberOfItems() != 0) {
continue choices;
}
}
for(int i = 0; i < gsllist.getNumberOfItems(); i++) {
String str = (String)gsllist.getItem(i);
if(sllist == null) {
// use default feature set
if(!(str.equals("en"))) {
continue;
continue choices;
}
} else {
boolean found = false;
@@ -740,7 +756,7 @@ public class PDFRenderer implements Renderer {
}
}
if(!found)
continue;
continue choices;
}
}
}
@@ -818,15 +834,21 @@ public class PDFRenderer implements Renderer {
if(rx == 0.0 && ry == 0.0) {
str = "" + x + " " + y + " " + w + " " + h + " re\n";
} else {
if(ry == 0.0)
ry = rx;
if(rx > w / 2.0f)
rx = w / 2.0f;
if(ry > h / 2.0f)
ry = h / 2.0f;
str = "" + (x + rx) + " " + y + " m\n";
str += "" + (x + w - rx) + " " + y + " l\n";
str += "" + (x + w) + " " + y + " " + (x + w) + " " + y + " " + (x + w) + " " + (y + ry) + " c\n";
str += "" + (x + w - 19 * rx / 40) + " " + y + " " + (x + w) + " " + (y + 19 * ry / 40) + " " + (x + w) + " " + (y + ry) + " c\n";
str += "" + (x + w) + " " + (y + h - ry) + " l\n";
str += "" + (x + w) + " " + (y + h) + " " + (x + w) + " " + (y + h) + " " + (x + w - rx) + " " + (y + h) + " c\n";
str += "" + (x + w) + " " + (y + h - 19 * ry / 40) + " " + (x + w - 19 * rx / 40) + " " + (y + h) + " " + (x + w - rx) + " " + (y + h) + " c\n";
str += "" + (x + rx) + " " + (y + h) + " l\n";
str += "" + x + " " + (y + h) + " " + x + " " + (y + h) + " " + x + " " + (y + h - ry) + " c\n";
str += "" + (x + 19 * rx / 40) + " " + (y + h) + " " + x + " " + (y + h - 19 * ry / 40) + " " + x + " " + (y + h - ry) + " c\n";
str += "" + x + " " + (y + ry) + " l\n";
str += "" + x + " " + y + " " + x + " " + y + " " + (x + rx) + " " + y + " c\n";
str += "" + x + " " + (y + 19 * ry / 40) + " " + (x + 19 * rx / 40) + " " + y + " " + (x + rx) + " " + y + " c\n";
}
currentStream.add(str);
doDrawing(di);
@@ -1178,7 +1200,21 @@ e.printStackTrace();
}
}

void handleGradient(String sp, boolean fill, SVGElement area)
/**
* A symbol has a viewbox and preserve aspect ratio.
*/
void renderSymbol(FontState fontState, SVGSymbolElement symbol, int x, int y)
{
NodeList nl = symbol.getChildNodes();
for(int count = 0; count < nl.getLength(); count++) {
Node n = nl.item(count);
if(n instanceof SVGElement) {
renderElement(fontState, (SVGElement)n, x, y);
}
}
}

void handleGradient(String sp, DrawingInstruction di, boolean fill, SVGElement area)
{
// should be a url to a gradient
String url = (String)sp;
@@ -1191,8 +1227,9 @@ e.printStackTrace();
gi = locateDef(address, area);
if(gi instanceof SVGLinearGradientElement) {
SVGLinearGradientElement linear = (SVGLinearGradientElement)gi;
handleLinearGradient(linear, di, fill);

Vector theCoords = new Vector();
/* Vector theCoords = new Vector();
theCoords.addElement(new Double(linear.getX1().getBaseVal().getValue()));
theCoords.addElement(new Double(linear.getY1().getBaseVal().getValue()));
theCoords.addElement(new Double(linear.getX2().getBaseVal().getValue()));
@@ -1223,22 +1260,33 @@ e.printStackTrace();
float lastoffset = 0;
Vector lastVector = null;
SVGStopElementImpl stop;
Hashtable table = null;
for(int count = 0; count < nl.getLength(); count++) {
stop = (SVGStopElementImpl)nl.item(count);
// table = stop.oldgetStyle();
ColorType sc = (ColorType)table.get("stop-color");
if(sc == null) {
CSSValue cv = stop.getPresentationAttribute("stop-color");
if(cv == null) {
// maybe using color
sc = (ColorType)table.get("color");
cv = stop.getPresentationAttribute("color");
}
if(sc == null) {
if(cv == null) {
// problems
System.err.println("no stop-color or color in stop element");
continue;
}
float offset = stop.getOffset().getBaseVal();
PDFColor color = new PDFColor(sc.red(), sc.green(), sc.blue());
PDFColor color = new PDFColor(0, 0, 0);
if(cv != null && cv.getValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
if(((CSSPrimitiveValue)cv).getPrimitiveType() == CSSPrimitiveValue.CSS_RGBCOLOR) {
RGBColor col = ((CSSPrimitiveValue)cv).getRGBColorValue();
CSSPrimitiveValue val;
val = col.getRed();
float red = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getGreen();
float green = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getBlue();
float blue = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
color = new PDFColor(red, green, blue);
}
}
float offset = stop.getOffset().getBaseVal() / 100f;
Vector colVector = color.getVector();
// create bounds from last to offset
if(lastVector != null) {
@@ -1247,6 +1295,12 @@ e.printStackTrace();
PDFFunction myfunc = this.pdfDoc.makeFunction(2, theDomain, null,
theCzero, theCone, 1.0);
theFunctions.addElement(myfunc);
} else if(nl.getLength() == 1) {
Vector theCzero = colVector;
Vector theCone = colVector;
PDFFunction myfunc = this.pdfDoc.makeFunction(2, theDomain, null,
theCzero, theCone, 1.0);
theFunctions.addElement(myfunc);
}
lastoffset = offset;
lastVector = colVector;
@@ -1262,9 +1316,9 @@ e.printStackTrace();
2, aColorSpace,
null, null, false,
theCoords, null, myfunky,theExtend);
PDFPattern myPat = this.pdfDoc.makePattern(2, myShad, null, null, null);*/
PDFPattern myPat = this.pdfDoc.makePattern(2, myShad, null, null, null);*
PDFPattern myPat = this.pdfDoc.createGradient(false, aColorSpace, someColors,null,theCoords);
currentStream.add(myPat.getColorSpaceOut(fill));
currentStream.add(myPat.getColorSpaceOut(fill));*/
} else if(gi instanceof SVGRadialGradientElement) {
SVGRadialGradientElement radial = (SVGRadialGradientElement)gi;
ColorSpace aColorSpace = new ColorSpace(ColorSpace.DEVICE_RGB);
@@ -1331,19 +1385,31 @@ e.printStackTrace();
float lastoffset = 0;
for(int count = 0; count < nl.getLength(); count++) {
stop = (SVGStopElementImpl)nl.item(count);
// table = stop.oldgetStyle();
ColorType sc = (ColorType)table.get("stop-color");
if(sc == null) {
CSSValue cv = stop.getPresentationAttribute("stop-color");
if(cv == null) {
// maybe using color
sc = (ColorType)table.get("color");
cv = stop.getPresentationAttribute("color");
}
if(sc == null) {
if(cv == null) {
// problems
System.err.println("no stop-color or color in stop element");
continue;
}
PDFColor color = new PDFColor(0, 0, 0);
if(cv != null && cv.getValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
if(((CSSPrimitiveValue)cv).getPrimitiveType() == CSSPrimitiveValue.CSS_RGBCOLOR) {
RGBColor col = ((CSSPrimitiveValue)cv).getRGBColorValue();
CSSPrimitiveValue val;
val = col.getRed();
float red = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getGreen();
float green = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getBlue();
float blue = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
color = new PDFColor(red, green, blue);
}
}
float offset = stop.getOffset().getBaseVal();
PDFColor color = new PDFColor(sc.red(), sc.green(), sc.blue());
// create bounds from last to offset
lastoffset = offset;
someColors.addElement(color);
@@ -1357,6 +1423,134 @@ e.printStackTrace();
}
}

protected void handleLinearGradient(SVGLinearGradientElement linear, DrawingInstruction di, boolean fill)
{
Vector theCoords = new Vector();
theCoords.addElement(new Double(linear.getX1().getBaseVal().getValue()));
theCoords.addElement(new Double(linear.getY1().getBaseVal().getValue()));
theCoords.addElement(new Double(linear.getX2().getBaseVal().getValue()));
theCoords.addElement(new Double(linear.getY2().getBaseVal().getValue()));

Vector theExtend = new Vector();
theExtend.addElement(new Boolean(true));
theExtend.addElement(new Boolean(true));

Vector theDomain = new Vector();
theDomain.addElement(new Double(0));
theDomain.addElement(new Double(1));

Vector theEncode = new Vector();
theEncode.addElement(new Double(0));
theEncode.addElement(new Double(1));
theEncode.addElement(new Double(0));
theEncode.addElement(new Double(1));

Vector theBounds = new Vector();
theBounds.addElement(new Double(0));
theBounds.addElement(new Double(1));

Vector theFunctions = new Vector();

NodeList nl = linear.getChildNodes();
Vector someColors = new Vector();
float lastoffset = 0;
Vector lastVector = null;
SVGStopElementImpl stop;
if(nl.getLength() == 0) {
// the color should be "none"
if(fill)
di.fill = false;
else
di.stroke = false;
return;
} else if(nl.getLength() == 1) {
stop = (SVGStopElementImpl)nl.item(0);
CSSValue cv = stop.getPresentationAttribute("stop-color");
if(cv == null) {
// maybe using color
cv = stop.getPresentationAttribute("color");
}
if(cv == null) {
// problems
System.err.println("no stop-color or color in stop element");
return;
}
PDFColor color = new PDFColor(0, 0, 0);
if(cv != null && cv.getValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
if(((CSSPrimitiveValue)cv).getPrimitiveType() == CSSPrimitiveValue.CSS_RGBCOLOR) {
RGBColor col = ((CSSPrimitiveValue)cv).getRGBColorValue();
CSSPrimitiveValue val;
val = col.getRed();
float red = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getGreen();
float green = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getBlue();
float blue = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
color = new PDFColor(red, green, blue);
}
}
currentStream.add(color.getColorSpaceOut(fill));
if(fill)
di.fill = true;
else
di.stroke = true;
return;
}
for(int count = 0; count < nl.getLength(); count++) {
stop = (SVGStopElementImpl)nl.item(count);
CSSValue cv = stop.getPresentationAttribute("stop-color");
if(cv == null) {
// maybe using color
cv = stop.getPresentationAttribute("color");
}
if(cv == null) {
// problems
System.err.println("no stop-color or color in stop element");
continue;
}
PDFColor color = new PDFColor(0, 0, 0);
if(cv != null && cv.getValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
if(((CSSPrimitiveValue)cv).getPrimitiveType() == CSSPrimitiveValue.CSS_RGBCOLOR) {
RGBColor col = ((CSSPrimitiveValue)cv).getRGBColorValue();
CSSPrimitiveValue val;
val = col.getRed();
float red = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getGreen();
float green = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
val = col.getBlue();
float blue = val.getFloatValue(CSSPrimitiveValue.CSS_NUMBER);
color = new PDFColor(red, green, blue);
}
}
float offset = stop.getOffset().getBaseVal() / 100f;
Vector colVector = color.getVector();
// create bounds from last to offset
if(lastVector != null) {
Vector theCzero = lastVector;
Vector theCone = colVector;
PDFFunction myfunc = this.pdfDoc.makeFunction(2, theDomain, null,
theCzero, theCone, 1.0);
theFunctions.addElement(myfunc);
}
lastoffset = offset;
lastVector = colVector;
someColors.addElement(color);
}
ColorSpace aColorSpace = new ColorSpace(ColorSpace.DEVICE_RGB);
/* PDFFunction myfunky = this.pdfDoc.makeFunction(3,
theDomain, null,
theFunctions, null,
theEncode);
PDFShading myShad = null;
myShad = this.pdfDoc.makeShading(
2, aColorSpace,
null, null, false,
theCoords, null, myfunky,theExtend);
PDFPattern myPat = this.pdfDoc.makePattern(2, myShad, null, null, null);*/
PDFPattern myPat = this.pdfDoc.createGradient(false, aColorSpace, someColors,null,theCoords);
currentStream.add(myPat.getColorSpaceOut(fill));
}

/*
* This sets up the style for drawing objects.
* Should only set style for elements that have changes.
@@ -1393,7 +1587,7 @@ e.printStackTrace();
} else if(((CSSPrimitiveValue)sp).getPrimitiveType() == CSSPrimitiveValue.CSS_URI) {
// gradient
String str = ((CSSPrimitiveValue)sp).getCssText();
handleGradient(str, true, area);
handleGradient(str, di, true, area);
} else if(((CSSPrimitiveValue)sp).getPrimitiveType() == CSSPrimitiveValue.CSS_STRING) {
String str = ((CSSPrimitiveValue)sp).getCssText();
if(str.equals("none")) {
@@ -1404,6 +1598,8 @@ e.printStackTrace();
}
}
} else {
PDFColor fillColour = new PDFColor(0, 0, 0);
currentStream.add(fillColour.getColorSpaceOut(true));
}
sp = style.getPresentationAttribute("fill-rule");
if(sp != null) {
@@ -1434,7 +1630,7 @@ e.printStackTrace();
} else if(((CSSPrimitiveValue)sp).getPrimitiveType() == CSSPrimitiveValue.CSS_URI) {
// gradient
String str = ((CSSPrimitiveValue)sp).getCssText();
handleGradient(str, false, area);
handleGradient(str, di, false, area);
} else if(((CSSPrimitiveValue)sp).getPrimitiveType() == CSSPrimitiveValue.CSS_STRING) {
String str = ((CSSPrimitiveValue)sp).getCssText();
if(str.equals("none")) {
@@ -1445,6 +1641,8 @@ e.printStackTrace();
}
}
} else {
PDFColor fillColour = new PDFColor(0, 0, 0);
currentStream.add(fillColour.getColorSpaceOut(false));
}
sp = style.getPresentationAttribute("stroke-linecap");
if(sp != null) {
@@ -1647,7 +1845,7 @@ e.printStackTrace();
} else if(area instanceof SVGUseElementImpl) {
SVGUseElementImpl ug = (SVGUseElementImpl)area;
String ref = ug.link;
ref = ref.substring(1, ref.length());
// ref = ref.substring(1, ref.length());
SVGElement graph = null;
graph = locateDef(ref, ug);
if(graph != null) {
@@ -1656,10 +1854,40 @@ e.printStackTrace();
// SVGElement parent = graph.getGraphicParent();
// graph.setParent(area);
// need to clip (if necessary) to the use area
// the style of the linked element is as if is was
// the style of the linked element is as if it was
// a direct descendant of the use element.
renderElement(fontState, graph, posx, posy);

// scale to the viewBox

if(graph instanceof SVGSymbolElement) {
currentStream.add("q\n");
SVGSymbolElement symbol = (SVGSymbolElement)graph;
SVGRect view = symbol.getViewBox().getBaseVal();
float usex = ug.getX().getBaseVal().getValue();
float usey = ug.getY().getBaseVal().getValue();
float usewidth = ug.getWidth().getBaseVal().getValue();
float useheight = ug.getHeight().getBaseVal().getValue();
float scaleX;
float scaleY;
scaleX = usewidth / view.getWidth();
scaleY = useheight / view.getHeight();
currentStream.add(usex + " " + usey + " m\n");
currentStream.add((usex + usewidth) + " " + usey + " l\n");
currentStream.add((usex + usewidth) + " " + (usey + useheight) + " l\n");
currentStream.add(usex + " " + (usey + useheight) + " l\n");
currentStream.add("h\n");
currentStream.add("W\n");
currentStream.add("n\n");
currentStream.add(scaleX + " 0 0 " + scaleY + " "
+ usex + " " + usey + " cm\n");
renderSymbol(fontState, symbol, posx, posy);
currentStream.add("Q\n");
} else {
renderElement(fontState, graph, posx, posy);
}
// graph.setParent(parent);
} else {
MessageHandler.logln("Use Element: " + ref + " not found");
}
} else if (area instanceof SVGImageElementImpl) {
SVGImageElementImpl ig = (SVGImageElementImpl)area;
@@ -1667,8 +1895,15 @@ e.printStackTrace();
} else if (area instanceof SVGSVGElement) {
// the x and y pos will be wrong!
currentStream.add("q\n");
renderSVG(fontState, (SVGSVGElement)area, x, y);
SVGSVGElement svgel = (SVGSVGElement)area;
float svgx = svgel.getX().getBaseVal().getValue();
float svgy = svgel.getY().getBaseVal().getValue();
currentStream.add(1 + " 0 0 " + 1 + " "
+ svgx + " " + svgy + " cm\n");
renderSVG(fontState, svgel, (int)(x + 1000 * svgx), (int)(y + 1000 * svgy));
currentStream.add("Q\n");
// } else if (area instanceof SVGSymbolElement) {
// 'symbol' element is not rendered (except by 'use')
} else if (area instanceof SVGAElement) {
SVGAElement ael = (SVGAElement)area;
org.w3c.dom.NodeList nl = ael.getChildNodes();
@@ -1802,7 +2037,6 @@ e.printStackTrace();
if(img instanceof SVGImage) {
SVGDocument doc = ((SVGImage)img).getSVGDocument();
Element ele = doc.getElementById(ref.substring(pos + 1, ref.length()));
//System.out.println("def:" + ref.substring(pos + 1, ref.length()) + ":" + ele);
if(ele instanceof SVGElement) {
return (SVGElement)ele;
}

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