/**
* Converts a Paint definition to a concrete <code>java.awt.Paint</code> instance according to the
* specified parameters.
*
* @param paintedElement the element interested in a Paint
* @param paintedNode the graphics node to paint (objectBoundingBox)
* @param paintDef the paint definition
* @param opacity the opacity to consider for the Paint
* @param ctx the bridge context
*/
public static Paint convertPaint(
Element paintedElement,
GraphicsNode paintedNode,
Value paintDef,
float opacity,
BridgeContext ctx) {
if (paintDef.getCssValueType() == CSSValue.CSS_PRIMITIVE_VALUE) {
switch (paintDef.getPrimitiveType()) {
case CSSPrimitiveValue.CSS_IDENT:
return null; // none
case CSSPrimitiveValue.CSS_RGBCOLOR:
return convertColor(paintDef, opacity);
case CSSPrimitiveValue.CSS_URI:
return convertURIPaint(paintedElement, paintedNode, paintDef, opacity, ctx);
default:
throw new IllegalArgumentException("Paint argument is not an appropriate CSS value");
}
} else { // List
Value v = paintDef.item(0);
switch (v.getPrimitiveType()) {
case CSSPrimitiveValue.CSS_RGBCOLOR:
return convertRGBICCColor(paintedElement, v, (ICCColor) paintDef.item(1), opacity, ctx);
case CSSPrimitiveValue.CSS_URI:
{
Paint result = silentConvertURIPaint(paintedElement, paintedNode, v, opacity, ctx);
if (result != null) return result;
v = paintDef.item(1);
switch (v.getPrimitiveType()) {
case CSSPrimitiveValue.CSS_IDENT:
return null; // none
case CSSPrimitiveValue.CSS_RGBCOLOR:
if (paintDef.getLength() == 2) {
return convertColor(v, opacity);
} else {
return convertRGBICCColor(
paintedElement, v, (ICCColor) paintDef.item(2), opacity, ctx);
}
default:
throw new IllegalArgumentException(
"Paint argument is not an appropriate CSS value");
}
}
default:
// can't be reached
throw new IllegalArgumentException("Paint argument is not an appropriate CSS value");
}
}
}
/**
* Returns a <code>Marker</code> defined on the specified element by the specified value, and for
* the specified shape node.
*
* @param e the painted element
* @param v the CSS value describing the marker to construct
* @param ctx the bridge context
*/
public static Marker convertMarker(Element e, Value v, BridgeContext ctx) {
if (v.getPrimitiveType() == CSSPrimitiveValue.CSS_IDENT) {
return null; // 'none'
} else {
String uri = v.getStringValue();
Element markerElement = ctx.getReferencedElement(e, uri);
Bridge bridge = ctx.getBridge(markerElement);
if (bridge == null || !(bridge instanceof MarkerBridge)) {
throw new BridgeException(ctx, e, ERR_CSS_URI_BAD_TARGET, new Object[] {uri});
}
return ((MarkerBridge) bridge).createMarker(ctx, markerElement, e);
}
}
/**
* Returns the value of one color component (0 <= result <= 255).
*
* @param v the value that defines the color component
*/
public static int resolveColorComponent(Value v) {
float f;
switch (v.getPrimitiveType()) {
case CSSPrimitiveValue.CSS_PERCENTAGE:
f = v.getFloatValue();
f = (f > 100f) ? 100f : (f < 0f) ? 0f : f;
return Math.round(255f * f / 100f);
case CSSPrimitiveValue.CSS_NUMBER:
f = v.getFloatValue();
f = (f > 255f) ? 255f : (f < 0f) ? 0f : f;
return Math.round(f);
default:
throw new IllegalArgumentException(
"Color component argument is not an appropriate CSS value");
}
}
/**
* Implements {@link
* ValueManager#computeValue(CSSStylableElement,String,CSSEngine,int,StyleMap,Value)}.
*/
public Value computeValue(
CSSStylableElement elt, String pseudo, CSSEngine engine, int idx, StyleMap sm, Value value) {
if (value.getPrimitiveType() == CSSPrimitiveValue.CSS_PERCENTAGE) {
sm.putLineHeightRelative(idx, true);
int fsi = engine.getLineHeightIndex();
CSSStylableElement parent;
parent = (CSSStylableElement) elt.getParentNode();
if (parent == null) {
// Hmmm somthing pretty odd - can't happen accordint to spec,
// should always have text parent.
// http://www.w3.org/TR/SVG11/text.html#BaselineShiftProperty
parent = elt;
}
Value fs = engine.getComputedStyle(parent, pseudo, fsi);
float fsv = fs.getFloatValue();
float v = value.getFloatValue();
return new FloatValue(CSSPrimitiveValue.CSS_NUMBER, (fsv * v) / 100f);
}
return super.computeValue(elt, pseudo, engine, idx, sm, value);
}
