private boolean evaluatePaint() {
final GraphicFill graphicFill = styleElement.getGraphicFill();
if (graphicFill != null) {
cachedGraphic = CachedGraphic.cache(graphicFill);
if (cachedGraphic.isStaticVisible() == VisibilityState.UNVISIBLE) {
// graphic is not visible even if some value are dynamic
// this fill is not visible neither
isStaticVisible = VisibilityState.UNVISIBLE;
return false;
} else if (cachedGraphic.isStaticVisible() == VisibilityState.DYNAMIC) {
// graphic visibility is dynamic, so this fill too
if (isStaticVisible != VisibilityState.UNVISIBLE) isStaticVisible = VisibilityState.DYNAMIC;
} else {
// this graphic is visible
if (isStaticVisible == VisibilityState.NOT_DEFINED)
isStaticVisible = VisibilityState.VISIBLE;
}
cachedGraphic.getRequieredAttributsName(requieredAttributs);
} else {
final Expression expColor = styleElement.getColor();
if (GO2Utilities.isStatic(expColor)) {
Color j2dColor = GO2Utilities.evaluate(expColor, null, Color.class, Color.BLACK);
// we return false, opacity is 0 no need to cache or draw anything
if (j2dColor.getAlpha() == 0) {
isStaticVisible = VisibilityState.UNVISIBLE;
return false;
}
// this style is visible even if something else is dynamic
// evaluatePaint may change this value
if (isStaticVisible == VisibilityState.NOT_DEFINED)
isStaticVisible = VisibilityState.VISIBLE;
// we cache the paint
cachedPaint = j2dColor;
} else {
// this style visibility is dynamic
if (isStaticVisible != VisibilityState.UNVISIBLE) isStaticVisible = VisibilityState.DYNAMIC;
isStatic = false;
GO2Utilities.getRequieredAttributsName(expColor, requieredAttributs);
}
}
// TODO missing Graphic Stroke
return true;
}
/**
* Get the java2D Paint for the given feature.
*
* @param candidate : evaluate paint with the given feature
* @param x : start X position of the fill area
* @param y : start Y position of the fill area
* @return Java2D Paint
*/
public Paint getJ2DPaint(
final Object candidate,
final int x,
final int y,
final float coeff,
final RenderingHints hints) {
evaluate();
if (cachedPaint == null) {
// if paint is null it means it is dynamic
final Expression expColor = styleElement.getColor();
if (cachedGraphic != null) {
// we have a graphic inside
BufferedImage mosaique = cachedGraphic.getImage(candidate, coeff, hints);
if (mosaique != null) {
return new TexturePaint(
mosaique, new Rectangle(x, y, mosaique.getWidth(), mosaique.getHeight()));
} else {
return Color.BLACK;
}
} else {
// or it's a normal plain inside
return GO2Utilities.evaluate(expColor, candidate, Color.class, Color.BLACK);
}
}
return cachedPaint;
}
/** {@inheritDoc} */
@Override
public boolean isVisible(final Object candidate) {
evaluate();
if (isStaticVisible == VisibilityState.VISIBLE) {
// visible whatever feature we have
return true;
} else if (isStaticVisible == VisibilityState.UNVISIBLE) {
// unvisible whatever feature we have
return false;
} else {
// dynamic visibility
// test dynamic composite
if (cachedComposite == null) {
final Expression opacity = styleElement.getOpacity();
Float j2dOpacity = GO2Utilities.evaluate(opacity, candidate, 1f, 0f, 1f);
if (j2dOpacity <= 0) return false;
}
// test dynamic paint
if (cachedPaint == null) {
final Expression expColor = styleElement.getColor();
if (cachedGraphic != null) {
boolean visible = cachedGraphic.isVisible(candidate);
if (!visible) return false;
} else {
// or it's a normal plain inside
Color color = GO2Utilities.evaluate(expColor, null, Color.class, Color.BLACK);
if (color.getAlpha() <= 0) return false;
}
}
// test dynamic width
if (Float.isNaN(cachedWidth)) {
final Expression expWidth = styleElement.getWidth();
Float j2dWidth = GO2Utilities.evaluate(expWidth, candidate, Float.class, 1f);
if (j2dWidth <= 0) return false;
}
return true;
}
}
