Java源码示例：gov.nasa.worldwind.render.ScreenAnnotation
示例1
/**
* Highlight the given annotation
*
* @param annotation
* @param point
*/
private void highlightAnnotation(final LabeledPath label, final GeoPoint point) {
final ScreenAnnotation annotation = label.getAnnotation();
if (_lastSelection != null) {
final LabeledPath lastSelectedLabel = _lastSelection.getLeft();
final ScreenAnnotation lastSelectedAnnotation = lastSelectedLabel.getAnnotation();
final GeoPoint lastSelectedPoint = _lastSelection.getRight();
if (_mapShowLabel) {
lastSelectedAnnotation.setAttributes(createAnnotationAttr(false, lastSelectedPoint.getCountryFlag(IMAGE_RESOLUTION), getText(lastSelectedPoint)));
lastSelectedAnnotation.setAlwaysOnTop(false);
} else {
_renderableLayer.removeRenderable(lastSelectedLabel);
}
}
final ImageIcon image = point.getCountryFlag(IMAGE_RESOLUTION);
final String text = getText(point);
annotation.setAttributes(createAnnotationAttr(true, image, text));
annotation.setAlwaysOnTop(true);
if (!_mapShowLabel) {
_renderableLayer.addRenderable(label);
_controller.redraw();
}
_lastSelection = Pair.of(label, point);
}
示例2
protected Angle computePanAmount(Globe globe, OrbitView view, ScreenAnnotation control, double panStep)
{
// Compute last pick point distance relative to pan control center
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
double pickDistance = Math.sqrt(px * px + py * py);
double pickDistanceFactor = Math.min(pickDistance / 10, 5);
// Compute globe angular distance depending on eye altitude
Position eyePos = view.getEyePosition();
double radius = globe.getRadiusAt(eyePos);
double minValue = 0.5 * (180.0 / (Math.PI * radius)); // Minimum change ~0.5 meters
double maxValue = 1.0; // Maximum change ~1 degree
// Compute an interpolated value between minValue and maxValue, using (eye altitude)/(globe radius) as
// the interpolant. Interpolation is performed on an exponential curve, to keep the value from
// increasing too quickly as eye altitude increases.
double a = eyePos.getElevation() / radius;
a = (a < 0 ? 0 : (a > 1 ? 1 : a));
double expBase = 2.0; // Exponential curve parameter.
double value = minValue + (maxValue - minValue) * ((Math.pow(expBase, a) - 1.0) / (expBase - 1.0));
return Angle.fromDegrees(value * pickDistanceFactor * panStep);
}
示例3
/**
* Specifies the control to highlight. Any currently highlighted control is un-highlighted.
*
* @param control the control to highlight.
*/
public void highlight(Object control)
{
// Manage highlighting of controls.
if (this.currentControl == control)
return; // same thing selected
// Turn off highlight if on.
if (this.currentControl != null)
{
this.currentControl.getAttributes().setImageOpacity(-1); // use default opacity
this.currentControl = null;
}
// Turn on highlight if object selected.
if (control != null && control instanceof ScreenAnnotation)
{
this.currentControl = (ScreenAnnotation) control;
this.currentControl.getAttributes().setImageOpacity(1);
}
}
示例4
/**
* Make screen annotation
*
* @param text text
* @param image image
* @return the annotation
*/
private ScreenAnnotation makeLabelAnnotation(final String text, final ImageIcon image) {
final String normalizedText = text == null ? " " : text;
final ScreenAnnotation screenAnnotation = new ScreenAnnotation(normalizedText, new Point());
screenAnnotation.setAttributes(createAnnotationAttr(false, image, normalizedText));
screenAnnotation.setPickEnabled(true);
return screenAnnotation;
}
示例5
protected Angle computePanHeading(OrbitView view, ScreenAnnotation control)
{
// Compute last pick point 'heading' relative to pan control center
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
Angle heading = view.getHeading().add(Angle.fromRadians(Math.atan2(px, py)));
heading = heading.degrees >= 0 ? heading : heading.addDegrees(360);
return heading;
}
示例6
protected Angle computeLookHeading(OrbitView view, ScreenAnnotation control, double headingStep)
{
// Compute last pick point 'heading' relative to look control center on x
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double pickDistanceFactor = Math.min(Math.abs(px) / 3000, 5) * Math.signum(px);
// New heading
Angle heading = view.getHeading().add(Angle.fromRadians(headingStep * pickDistanceFactor));
heading = heading.degrees >= 0 ? heading : heading.addDegrees(360);
return heading;
}
示例7
protected Angle computeLookPitch(OrbitView view, ScreenAnnotation control, double pitchStep)
{
// Compute last pick point 'pitch' relative to look control center on y
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
double pickDistanceFactor = Math.min(Math.abs(py) / 3000, 5) * Math.signum(py);
// New pitch
Angle pitch = view.getPitch().add(Angle.fromRadians(pitchStep * pickDistanceFactor));
pitch = pitch.degrees >= 0 ? (pitch.degrees <= 90 ? pitch : Angle.fromDegrees(90)) : Angle.ZERO;
return pitch;
}
示例8
/**
* Get the control type associated with the given object or null if unknown.
*
* @param control the control object
*
* @return the control type. Can be one of {@link AVKey#VIEW_PAN}, {@link AVKey#VIEW_LOOK}, {@link
* AVKey#VIEW_HEADING_LEFT}, {@link AVKey#VIEW_HEADING_RIGHT}, {@link AVKey#VIEW_ZOOM_IN}, {@link
* AVKey#VIEW_ZOOM_OUT}, {@link AVKey#VIEW_PITCH_UP}, {@link AVKey#VIEW_PITCH_DOWN}, {@link
* AVKey#VIEW_FOV_NARROW} or {@link AVKey#VIEW_FOV_WIDE}. <p> Returns null if the object is not a view
* control associated with this layer. </p>
*/
public String getControlType(Object control)
{
if (control == null || !(control instanceof ScreenAnnotation))
return null;
if (showPanControls && controlPan.equals(control))
return AVKey.VIEW_PAN;
else if (showLookControls && controlLook.equals(control))
return AVKey.VIEW_LOOK;
else if (showHeadingControls && controlHeadingLeft.equals(control))
return AVKey.VIEW_HEADING_LEFT;
else if (showHeadingControls && controlHeadingRight.equals(control))
return AVKey.VIEW_HEADING_RIGHT;
else if (showZoomControls && controlZoomIn.equals(control))
return AVKey.VIEW_ZOOM_IN;
else if (showZoomControls && controlZoomOut.equals(control))
return AVKey.VIEW_ZOOM_OUT;
else if (showPitchControls && controlPitchUp.equals(control))
return AVKey.VIEW_PITCH_UP;
else if (showPitchControls && controlPitchDown.equals(control))
return AVKey.VIEW_PITCH_DOWN;
else if (showFovControls && controlFovNarrow.equals(control))
return AVKey.VIEW_FOV_NARROW;
else if (showFovControls && controlFovWide.equals(control))
return AVKey.VIEW_FOV_WIDE;
else if (showVeControls && controlVeUp.equals(control))
return AVKey.VERTICAL_EXAGGERATION_UP;
else if (showVeControls && controlVeDown.equals(control))
return AVKey.VERTICAL_EXAGGERATION_DOWN;
return null;
}
示例9
public void selected(SelectEvent event)
{
if (this.wwd == null)
return;
if (!(this.wwd.getView() instanceof OrbitView))
return;
OrbitView view = (OrbitView) this.wwd.getView();
if (this.viewControlsLayer.getHighlightedObject() != null)
{
this.viewControlsLayer.highlight(null);
this.wwd.redraw(); // must redraw so the de-highlight can take effect
}
if (event.getMouseEvent() != null && event.getMouseEvent().isConsumed())
return;
if (event.getTopObject() == null || event.getTopPickedObject().getParentLayer() != this.getParentLayer()
|| !(event.getTopObject() instanceof AVList))
return;
String controlType = ((AVList) event.getTopObject()).getStringValue(AVKey.VIEW_OPERATION);
if (controlType == null)
return;
ScreenAnnotation selectedObject = (ScreenAnnotation) event.getTopObject();
this.lastPickPoint = event.getPickPoint();
if (event.getEventAction().equals(SelectEvent.ROLLOVER))
{
// Highlight on rollover
this.viewControlsLayer.highlight(selectedObject);
this.wwd.redraw();
}
if (event.getEventAction().equals(SelectEvent.DRAG))
{
// just consume drag events
event.consume();
}
else if (event.getEventAction().equals(SelectEvent.HOVER))
{
// Highlight on hover
this.viewControlsLayer.highlight(selectedObject);
this.wwd.redraw();
}
else if (event.getEventAction().equals(SelectEvent.LEFT_PRESS) ||
(event.getEventAction().equals(SelectEvent.DRAG) && controlType.equals(AVKey.VIEW_PAN)) ||
(event.getEventAction().equals(SelectEvent.DRAG) && controlType.equals(AVKey.VIEW_LOOK)))
{
// Handle left press on controls
this.pressedControl = selectedObject;
this.pressedControlType = controlType;
// Consume drag events, but do not consume left press events. It is not necessary to consume left press
// events here, and doing so prevents the WorldWindow from gaining focus.
if (event.getEventAction().equals(SelectEvent.DRAG))
event.consume();
}
else if (event.getEventAction().equals(SelectEvent.LEFT_CLICK)
|| event.getEventAction().equals(SelectEvent.LEFT_DOUBLE_CLICK)
|| event.getEventAction().equals(SelectEvent.DRAG_END))
{
// Release pressed control
if (pressedControl != null)
event.consume();
this.pressedControl = null;
resetOrbitView(view);
view.firePropertyChange(AVKey.VIEW, null, view);
}
// Keep pressed control highlighted - overrides rollover non currently pressed controls
if (this.pressedControl != null)
{
this.viewControlsLayer.highlight(this.pressedControl);
this.wwd.redraw();
}
}
示例10
/**
* <code>SelectListener</code> implementation.
*
* @param event the current <code>SelectEvent</code>
*/
@Override
public void selected(SelectEvent event) {
//System.out.println("event.getEventAction(): " + event.getEventAction());
final ScreenAnnotation annotation = getAnnotation();
if (event.hasObjects() && event.getTopObject() == annotation) {
boolean update = false;
if (event.getEventAction().equals(SelectEvent.ROLLOVER)
|| event.getEventAction().equals(SelectEvent.LEFT_CLICK)) {
// Highlight annotation
if (!annotation.getAttributes().isHighlighted()) {
annotation.getAttributes().setHighlighted(true);
update = true;
}
// Check for text or url
final PickedObject po = event.getTopPickedObject();
if (po.getValue(AVKey.URL) != null) {
// Set cursor hand on hyperlinks
((Component) this.wwd).setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
int i = Integer.parseInt((String) po.getValue(AVKey.URL));
// Select current hyperlink
if (getSelectedIndex() != i) {
setSelectedIndex(i);
update = true;
}
// Enable/disable layer on left click
if (event.getEventAction().equals(SelectEvent.LEFT_CLICK)) {
final LayerList layers = getValidLayers();
if (i >= 0 && i < layers.size()) {
final Layer layer = layers.get(i);
final boolean enable = !layer.isEnabled();
layer.setEnabled(enable);
updateVirtualEarthLayers(layer, enable);
update = true;
}
}
} else {
// Unselect if not on an hyperlink
if (getSelectedIndex() != -1) {
setSelectedIndex(-1);
update = true;
}
// Set cursor
if (this.isComponentDragEnabled())
((Component) this.wwd).setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
else
((Component) this.wwd).setCursor(Cursor.getDefaultCursor());
}
}
if (event.getEventAction().equals(SelectEvent.DRAG)
|| event.getEventAction().equals(SelectEvent.DRAG_END)) {
// Handle dragging
if (this.isComponentDragEnabled() || this.isLayerDragEnabled()) {
final boolean wasDraggingLayer = this.draggingLayer;
this.drag(event);
// Update list if dragging a layer, otherwise just redraw the world window
if (this.draggingLayer || wasDraggingLayer)
update = true;
else
this.wwd.redraw();
}
}
// Redraw annotation if needed
if (update)
this.update();
} else if (event.getEventAction().equals(SelectEvent.ROLLOVER) && annotation.getAttributes().isHighlighted()) {
// de-highlight annotation
annotation.getAttributes().setHighlighted(false);
((Component) this.wwd).setCursor(Cursor.getDefaultCursor());
this.update();
}
}
