/**
* Draws text for subsequent Label ordered renderables in the ordered renderable list. This method
* is called after the text renderer has been set up (after beginRendering has been called), so
* this method can only draw text for subsequent labels that use the same font and rotation as
* this label. This method differs from {@link #drawBatched(gov.nasa.worldwind.render.DrawContext)
* drawBatched} in that this method reuses the active text renderer context to draw as many labels
* as possible without switching text renderer state.
*
* @param dc the current draw context.
* @param textRenderer Text renderer used to draw the label.
*/
protected void drawBatchedText(DrawContext dc, TextRenderer textRenderer) {
// Draw as many as we can in a batch to save ogl state switching.
Object nextItem = dc.peekOrderedRenderables();
if (!dc.isPickingMode()) {
while (nextItem != null && nextItem instanceof TacticalGraphicLabel) {
TacticalGraphicLabel nextLabel = (TacticalGraphicLabel) nextItem;
if (!nextLabel.isEnableBatchRendering()) break;
boolean sameFont = this.font.equals(nextLabel.getFont());
boolean sameRotation =
(this.rotation == null && nextLabel.rotation == null)
|| (this.rotation != null && this.rotation.equals(nextLabel.rotation));
boolean drawInterior = nextLabel.isDrawInterior();
// We've already set up the text renderer state, so we can can't change the font or text
// rotation.
// Also can't batch render if the next label needs an interior since that will require
// tearing down the
// text renderer context.
if (!sameFont || !sameRotation || drawInterior) break;
dc.pollOrderedRenderables(); // take it off the queue
nextLabel.doDrawText(textRenderer);
nextItem = dc.peekOrderedRenderables();
}
}
}
/**
* Draws this ordered renderable and all subsequent Label ordered renderables in the ordered
* renderable list. This method differs from {@link
* #drawBatchedText(gov.nasa.worldwind.render.DrawContext, TextRenderer) drawBatchedText} in that
* this method re-initializes the text renderer to draw the next label, while {@code
* drawBatchedText} re-uses the active text renderer context. That is, {@code drawBatchedText}
* attempts to draw as many labels as possible that share same text renderer configuration as this
* label, and this method attempts to draw as many labels as possible regardless of the text
* renderer configuration of the subsequent labels.
*
* @param dc the current draw context.
*/
protected void drawBatched(DrawContext dc) {
// Draw as many as we can in a batch to save ogl state switching.
Object nextItem = dc.peekOrderedRenderables();
if (!dc.isPickingMode()) {
while (nextItem != null && nextItem instanceof TacticalGraphicLabel) {
TacticalGraphicLabel nextLabel = (TacticalGraphicLabel) nextItem;
if (!nextLabel.isEnableBatchRendering()) break;
dc.pollOrderedRenderables(); // take it off the queue
nextLabel.doDrawOrderedRenderable(dc, this.pickSupport);
nextItem = dc.peekOrderedRenderables();
}
} else if (this.isEnableBatchPicking()) {
while (nextItem != null && nextItem instanceof TacticalGraphicLabel) {
TacticalGraphicLabel nextLabel = (TacticalGraphicLabel) nextItem;
if (!nextLabel.isEnableBatchRendering() || !nextLabel.isEnableBatchPicking()) break;
if (nextLabel.pickLayer != this.pickLayer) // batch pick only within a single layer
break;
dc.pollOrderedRenderables(); // take it off the queue
nextLabel.doDrawOrderedRenderable(dc, this.pickSupport);
nextItem = dc.peekOrderedRenderables();
}
}
}
protected void drawIconsInBatch(DrawContext dc, OrderedIcon uIcon) {
this.drawIcon(dc, uIcon);
// Draw as many as we can in a batch to save ogl state switching.
Object nextItem = dc.peekOrderedRenderables();
while (nextItem != null && nextItem instanceof OrderedIcon) {
OrderedIcon oi = (OrderedIcon) nextItem;
if (oi.getRenderer() != this) return;
dc.pollOrderedRenderables(); // take it off the queue
this.drawIcon(dc, oi);
nextItem = dc.peekOrderedRenderables();
}
}
protected void pickIconsInBatch(DrawContext dc, OrderedIcon uIcon) {
this.drawIcon(dc, uIcon);
// Draw as many as we can in a batch to save ogl state switching.
// Note that there's a further qualification here than in render(): only items associated with
// the
// same layer can be batched because the pick resolution step at the end of batch rendering
// associates the item's layer with the resolved picked object.
Object nextItem = dc.peekOrderedRenderables();
while (nextItem != null
&& nextItem instanceof OrderedIcon
&& ((OrderedIcon) nextItem).layer == uIcon.layer) {
OrderedIcon oi = (OrderedIcon) nextItem;
if (oi.getRenderer() != this) return;
dc.pollOrderedRenderables(); // take it off the queue
this.drawIcon(dc, oi);
nextItem = dc.peekOrderedRenderables();
}
}