protected static boolean isIconValid(WWIcon icon, boolean checkPosition) {
if (icon == null || icon.getImageTexture() == null) return false;
//noinspection RedundantIfStatement
if (checkPosition && icon.getPosition() == null) return false;
return true;
}
protected void applyBackground(
DrawContext dc,
WWIcon icon,
Vec4 screenPoint,
double width,
double height,
double pedestalSpacing,
double pedestalScale) {
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
double backgroundScale;
backgroundScale = icon.getBackgroundScale();
if (icon.getBackgroundTexture() != null) {
if (icon.getBackgroundTexture().bind(dc)) {
TextureCoords texCoords = icon.getBackgroundTexture().getTexCoords();
gl.glPushMatrix();
gl.glLoadIdentity();
double bgwidth = backgroundScale * width;
double bgheight = backgroundScale * height;
// Offset the background for the highlighted scale.
// if (icon.isHighlighted())
// {
// gl.glTranslated(0d, height * (icon.getHighlightScale() - 1) / 2, 0d);
// }
// Offset the background for the pedestal height.
gl.glTranslated(0d, (pedestalScale * height) + pedestalSpacing, 0d);
// Place the background centered behind the icon.
gl.glTranslated(screenPoint.x - bgwidth / 2, screenPoint.y - (bgheight - height) / 2, 0d);
// Scale to the background image dimension.
gl.glScaled(bgwidth, bgheight, 1d);
dc.drawUnitQuad(texCoords);
gl.glPopMatrix();
}
}
}
protected void addToolTip(DrawContext dc, WWIcon icon, Vec4 iconPoint) {
if (icon.getToolTipFont() == null && icon.getToolTipText() == null) return;
Vec4 screenPoint = dc.getView().project(iconPoint);
if (screenPoint == null) return;
if (icon.getToolTipOffset() != null) screenPoint = screenPoint.add3(icon.getToolTipOffset());
OrderedText tip =
new OrderedText(
icon.getToolTipText(),
icon.getToolTipFont(),
screenPoint,
icon.getToolTipTextColor(),
0d);
dc.addOrderedRenderable(tip);
}
/**
* Records feedback about how the specified WWIcon has been processed.
*
* @param dc the current DrawContext.
* @param icon the icon which the feedback information refers to.
* @param modelPoint the icon's reference point in model coordinates.
* @param screenRect the icon's bounding rectangle in screen coordinates.
*/
@SuppressWarnings({"UnusedDeclaration"})
protected void doRecordFeedback(
DrawContext dc, WWIcon icon, Vec4 modelPoint, Rectangle screenRect) {
icon.setValue(AVKey.FEEDBACK_REFERENCE_POINT, modelPoint);
icon.setValue(AVKey.FEEDBACK_SCREEN_BOUNDS, screenRect);
}
/**
* Returns true if the IconRenderer should record feedback about how the specified WWIcon has been
* processed.
*
* @param dc the current DrawContext.
* @param icon the WWIcon to record feedback information for.
* @return true to record feedback; false otherwise.
*/
protected boolean isFeedbackEnabled(DrawContext dc, WWIcon icon) {
if (dc.isPickingMode()) return false;
Boolean b = (Boolean) icon.getValue(AVKey.FEEDBACK_ENABLED);
return (b != null && b);
}
protected Vec4 drawIcon(DrawContext dc, OrderedIcon uIcon) {
if (uIcon.point == null) {
String msg = Logging.getMessage("nullValue.PointIsNull");
Logging.logger().severe(msg);
// Record feedback data for this WWIcon if feedback is enabled.
if (uIcon.icon != null) this.recordFeedback(dc, uIcon.icon, null, null);
return null;
}
WWIcon icon = uIcon.icon;
if (dc.getView().getFrustumInModelCoordinates().getNear().distanceTo(uIcon.point) < 0) {
// Record feedback data for this WWIcon if feedback is enabled.
this.recordFeedback(dc, icon, uIcon.point, null);
return null;
}
final Vec4 screenPoint = dc.getView().project(uIcon.point);
if (screenPoint == null) {
// Record feedback data for this WWIcon if feedback is enabled.
this.recordFeedback(dc, icon, uIcon.point, null);
return null;
}
double pedestalScale;
double pedestalSpacing;
if (this.pedestal != null) {
pedestalScale = this.pedestal.getScale();
pedestalSpacing = pedestal.getSpacingPixels();
} else {
pedestalScale = 0d;
pedestalSpacing = 0d;
}
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
this.setDepthFunc(dc, uIcon, screenPoint);
gl.glMatrixMode(GL2.GL_MODELVIEW);
gl.glLoadIdentity();
Dimension size = icon.getSize();
double width = size != null ? size.getWidth() : icon.getImageTexture().getWidth(dc);
double height = size != null ? size.getHeight() : icon.getImageTexture().getHeight(dc);
gl.glTranslated(
screenPoint.x - width / 2, screenPoint.y + (pedestalScale * height) + pedestalSpacing, 0d);
if (icon.isHighlighted()) {
double heightDelta = this.pedestal != null ? 0 : height / 2; // expand only above the pedestal
gl.glTranslated(width / 2, heightDelta, 0);
gl.glScaled(icon.getHighlightScale(), icon.getHighlightScale(), icon.getHighlightScale());
gl.glTranslated(-width / 2, -heightDelta, 0);
}
Rectangle rect =
new Rectangle(
(int) (screenPoint.x - width / 2),
(int) (screenPoint.y),
(int) width,
(int) (height + (pedestalScale * height) + pedestalSpacing));
if (dc.isPickingMode()) {
// If in picking mode and pick clipping is enabled, check to see if the icon is within the
// pick volume.
if (this.isPickFrustumClippingEnabled() && !dc.getPickFrustums().intersectsAny(rect)) {
// Record feedback data for this WWIcon if feedback is enabled.
this.recordFeedback(dc, icon, uIcon.point, rect);
return screenPoint;
} else {
java.awt.Color color = dc.getUniquePickColor();
int colorCode = color.getRGB();
this.pickSupport.addPickableObject(colorCode, icon, uIcon.getPosition(), false);
gl.glColor3ub((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue());
}
}
if (icon.getBackgroundTexture() != null)
this.applyBackground(dc, icon, screenPoint, width, height, pedestalSpacing, pedestalScale);
if (icon.getImageTexture().bind(dc)) {
TextureCoords texCoords = icon.getImageTexture().getTexCoords();
gl.glScaled(width, height, 1d);
dc.drawUnitQuad(texCoords);
}
if (this.pedestal != null && this.pedestal.getImageTexture() != null) {
gl.glLoadIdentity();
gl.glTranslated(screenPoint.x - (pedestalScale * (width / 2)), screenPoint.y, 0d);
gl.glScaled(width * pedestalScale, height * pedestalScale, 1d);
if (this.pedestal.getImageTexture().bind(dc)) {
TextureCoords texCoords = this.pedestal.getImageTexture().getTexCoords();
dc.drawUnitQuad(texCoords);
}
}
// Record feedback data for this WWIcon if feedback is enabled.
this.recordFeedback(dc, icon, uIcon.point, rect);
return screenPoint;
}
protected void drawMany(DrawContext dc, Iterable<? extends WWIcon> icons, Layer layer) {
if (dc == null) {
String msg = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (dc.getVisibleSector() == null) return;
SectorGeometryList geos = dc.getSurfaceGeometry();
//noinspection RedundantIfStatement
if (geos == null) return;
if (icons == null) {
String msg = Logging.getMessage("nullValue.IconIterator");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
Iterator<? extends WWIcon> iterator = icons.iterator();
if (!iterator.hasNext()) return;
double horizon = dc.getView().getHorizonDistance();
while (iterator.hasNext()) {
WWIcon icon = iterator.next();
if (!isIconValid(icon, true)) {
// Record feedback data for this WWIcon if feedback is enabled.
if (icon != null) this.recordFeedback(dc, icon, null, null);
continue;
}
if (!icon.isVisible()) {
// Record feedback data for this WWIcon if feedback is enabled.
this.recordFeedback(dc, icon, null, null);
continue;
}
// Determine Cartesian position from the surface geometry if the icon is near the surface,
// otherwise draw it from the globe.
Position pos = icon.getPosition();
Vec4 iconPoint = null;
if (pos.getElevation() < dc.getGlobe().getMaxElevation()
&& !this.isAlwaysUseAbsoluteElevation()) {
iconPoint = dc.getSurfaceGeometry().getSurfacePoint(icon.getPosition());
}
if (iconPoint == null) {
Angle lat = pos.getLatitude();
Angle lon = pos.getLongitude();
double elevation = pos.getElevation();
if (!this.isAlwaysUseAbsoluteElevation()) elevation += dc.getGlobe().getElevation(lat, lon);
iconPoint = dc.getGlobe().computePointFromPosition(lat, lon, elevation);
}
double eyeDistance =
icon.isAlwaysOnTop() ? 0 : dc.getView().getEyePoint().distanceTo3(iconPoint);
// X-PATCH Marjan
// extracted skip conditions into an overrideable method
if (!meetsRenderCriteria(dc, icon, iconPoint, eyeDistance)) {
this.recordFeedback(dc, icon, iconPoint, null);
continue;
}
// X-END
// The icons aren't drawn here, but added to the ordered queue to be drawn back-to-front.
dc.addOrderedRenderable(new OrderedIcon(icon, iconPoint, layer, eyeDistance, horizon));
if (icon.isShowToolTip()) this.addToolTip(dc, icon, iconPoint);
}
}
