package ai.cogmission.mosaic.refimpl.javafx;
import java.awt.geom.Rectangle2D;
import ai.cogmission.mosaic.ChangeType;
import ai.cogmission.mosaic.MosaicEngine;
import ai.cogmission.mosaic.MosaicEngineBuilder;
import ai.cogmission.mosaic.MosaicSurfaceBuilder;
import ai.cogmission.mosaic.Surface;
import ai.cogmission.mosaic.SurfaceListener;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.event.EventHandler;
import javafx.geometry.Bounds;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.effect.DropShadow;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.Region;
import javafx.scene.paint.Color;
/**
* An implementation of a container object which is meant to be used
* with the {@link MosaicEngineImpl}.
*
* @author David Ray
*
* @param <T>
*/
public class MosaicPane<T extends Node> extends Region {
private MosaicEngine<T> layoutEngine;
private Surface<T> surface;
private Group content;
/**
* Constructs a new {@code MosaicPane}
*/
public MosaicPane() {
this(null, null, null);
}
/**
* Constructs a new MosaicPane using the specified
* {@link MosaicEngine} and {@link Surface}.
*
* This constructor is used to construct a pane containing the same engine
* and surface definition as a previously configured pane for copying,
* serialization etc.
*
* @param engine the layout engine
* @param surface the pre-configured surface
* @param group the {@link Group} containing ui elements
*/
public MosaicPane(MosaicEngine<T> engine, Surface<T> surface, Group group) {
if(engine == null || surface == null) {
this.layoutEngine = new MosaicEngineBuilder<T>().build();
MosaicSurfaceBuilder<T> builder = new MosaicSurfaceBuilder<T>();
this.surface = builder
.useIntegerPrecision(false)
.cornerClickRadius(5)
.useSurfaceOffset(false)
.dividerSize(10)
.snapDistance(15).build();
this.surface.addChangeListener(getSurfaceObserver());
content = new Group();
content.setManaged(false);
getChildren().add(content);
}else{
this.layoutEngine = engine;
this.surface = surface;
this.content = group;
}
layoutBoundsProperty().addListener(new ChangeListener<Bounds>() {
@Override
public void changed(ObservableValue<? extends Bounds> arg0, Bounds arg1, Bounds arg2) {
if(arg2.getWidth() == 0 || arg2.getHeight() == 0) return;
MosaicPane.this.surface.setArea(new Rectangle2D.Double(0, 0, arg2.getWidth(), arg2.getHeight()));
MosaicPane.this.surface.requestLayout();
}
});
addEventHandler(MouseEvent.ANY, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent evt) {
if(evt.getEventType().equals(MouseEvent.MOUSE_PRESSED)) {
MosaicPane.this.surface.mousePressed(evt.getX(), evt.getY());
}else if(evt.getEventType().equals(MouseEvent.MOUSE_DRAGGED)) {
MosaicPane.this.surface.mouseDragged(evt.getX(), evt.getY());
}else if(evt.getEventType().equals(MouseEvent.MOUSE_RELEASED)) {
MosaicPane.this.surface.mouseReleased();
}
}
});
}
/**
* Called to add an object to be laid out, to the layout engine.
*
* @param t the object to be laid out or key to such.
* @param percentX the percentage of the overall width, the x position is located at.
* @param percentY the percentage of the overall height, the y position is located at.
* @param percentWidth the percentage of the overall width the object should occupy.
* @param percentHeight the percentage of the overall height the object should occupy.
*/
public void add(T t, double percentX, double percentY, double percentWidth, double percentHeight) {
surface.addRelative("", t, percentX, percentY, percentWidth, percentHeight, 0, Double.MAX_VALUE, 0, Double.MAX_VALUE);
content.getChildren().add(t);
}
/**
* Called to add an object to be laid out, to the layout engine applying the specified
* String id.
*
* @param t the object to be laid out or key to such.
* @param id the user-specified String id.
* @param percentX the percentage of the overall width, the x position is located at.
* @param percentY the percentage of the overall height, the y position is located at.
* @param percentWidth the percentage of the overall width the object should occupy.
* @param percentHeight the percentage of the overall height the object should occupy.
*/
public void add(T t, String id, double percentX, double percentY, double percentWidth, double percentHeight) {
surface.addRelative(id, t, percentX, percentY, percentWidth, percentHeight, 0, Double.MAX_VALUE, 0, Double.MAX_VALUE);
content.getChildren().add(t);
}
public MosaicEngine<T> getEngine() {
return layoutEngine;
}
public Surface<T> getSurface() {
return surface;
}
public SurfaceListener<T> getSurfaceObserver() {
SurfaceListener<T> l = new SurfaceListener<T>() {
public void changed(ChangeType changeType, Node n, String id, Rectangle2D r1, Rectangle2D r2) {
switch(changeType) {
case REMOVE_DISCARD: {
content.getChildren().remove(n);
requestLayout();
break;
}
case RESIZE_RELOCATE: {
n.resizeRelocate(r2.getX(), r2.getY(), r2.getWidth(), r2.getHeight());
requestLayout();
break;
}
case ADD_COMMIT: {
content.getChildren().add(n);
n.resizeRelocate(r2.getX(), r2.getY(), r2.getWidth(), r2.getHeight());
requestLayout();
break;
}
case MOVE_BEGIN: {
DropShadow shadow = new DropShadow();
shadow.setOffsetX(10);
shadow.setOffsetY(10);
shadow.setRadius(5);
shadow.setColor(Color.GRAY);
n.setEffect(shadow);
n.toFront();
n.setOpacity(.5);
break;
}
case RELOCATE_DRAG_TARGET: {
n.resizeRelocate(r2.getX(), r2.getY(), r2.getWidth(), r2.getHeight());
requestLayout();
break;
}
case RESIZE_DRAG_TARGET: {
n.resizeRelocate(r2.getX(), r2.getY(), r2.getWidth(), r2.getHeight());
requestLayout();
break;
}
case MOVE_END: {
n.setOpacity(1);
n.setEffect(null);
break;
}
case ANIMATE_RESIZE_RELOCATE: {
n.resizeRelocate(r2.getX(), r2.getY(), r2.getWidth(), r2.getHeight());
requestLayout();
break;
}
default: break;
}
}
};
return l;
}
}
