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MoveControl.java
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MoveControl.java
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/*
Copyright 2021 Will Winder
This file is part of Universal Gcode Sender (UGS).
UGS is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
UGS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with UGS. If not, see <http://www.gnu.org/licenses/>.
*/
package com.willwinder.ugs.nbp.designer.entities.controls;
import com.willwinder.ugs.nbp.designer.Utils;
import com.willwinder.ugs.nbp.designer.actions.MoveAction;
import com.willwinder.ugs.nbp.designer.actions.UndoManager;
import com.willwinder.ugs.nbp.designer.entities.Entity;
import com.willwinder.ugs.nbp.designer.entities.EntityEvent;
import com.willwinder.ugs.nbp.designer.entities.EventType;
import com.willwinder.ugs.nbp.designer.entities.selection.SelectionManager;
import com.willwinder.ugs.nbp.designer.gui.Colors;
import com.willwinder.ugs.nbp.designer.gui.Drawing;
import com.willwinder.ugs.nbp.designer.gui.MouseEntityEvent;
import com.willwinder.ugs.nbp.designer.logic.Controller;
import com.willwinder.ugs.nbp.designer.logic.ControllerFactory;
import java.awt.Cursor;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* @author Joacim Breiler
*/
public class MoveControl extends AbstractControl {
private final RoundRectangle2D.Double shape;
private final Controller controller;
private AffineTransform transform = new AffineTransform();
private Point2D startOffset;
private Point2D startPosition;
private boolean isHovered = false;
public MoveControl(Controller controller) {
super(controller.getSelectionManager());
this.controller = controller;
this.shape = new RoundRectangle2D.Double(0, 0, ResizeControl.SIZE, ResizeControl.SIZE, ResizeControl.ARC_SIZE, ResizeControl.ARC_SIZE);
}
@Override
public boolean isWithin(Point2D point) {
return !controller.getSelectionManager().isEmpty() &&
getSelectionManager().getShape().contains(point);
}
@Override
public Shape getShape() {
return transform.createTransformedShape(getRelativeShape());
}
@Override
public Shape getRelativeShape() {
return shape;
}
@Override
public void render(Graphics2D graphics, Drawing drawing) {
if (controller.getSelectionManager().isEmpty()) {
return;
}
updatePosition(drawing);
if (isHovered) {
graphics.setColor(Colors.CONTROL_BORDER);
} else {
graphics.setColor(Colors.CONTROL_HANDLE);
}
graphics.fill(getShape());
}
@Override
public Optional<Cursor> getHoverCursor() {
return Optional.of(new Cursor(Cursor.HAND_CURSOR));
}
@Override
public void onEvent(EntityEvent entityEvent) {
if (entityEvent instanceof MouseEntityEvent && entityEvent.getTarget() == this) {
MouseEntityEvent mouseShapeEvent = (MouseEntityEvent) entityEvent;
Point2D mousePosition = mouseShapeEvent.getCurrentMousePosition();
Entity target = getSelectionManager();
if (mouseShapeEvent.getType() == EventType.MOUSE_PRESSED) {
startPosition = target.getPosition();
startOffset = new Point2D.Double(mousePosition.getX() - target.getPosition().getX(), mousePosition.getY() - target.getPosition().getY());
} else if (mouseShapeEvent.getType() == EventType.MOUSE_DRAGGED) {
Point2D deltaMovement = new Point2D.Double(mousePosition.getX() - target.getPosition().getX() - startOffset.getX(), mousePosition.getY() - target.getPosition().getY() - startOffset.getY());
if (mouseShapeEvent.isAltPressed()) {
Point2D newPosition = new Point2D.Double(Utils.roundToDecimals(target.getPosition().getX() + deltaMovement.getX(), 1), Utils.roundToDecimals(target.getPosition().getY() + deltaMovement.getY(), 1));
target.setPosition(newPosition);
} else {
Point2D newPosition = new Point2D.Double(Math.round(target.getPosition().getX() + deltaMovement.getX()), Math.round(target.getPosition().getY() + deltaMovement.getY()));
target.setPosition(newPosition);
}
} else if (mouseShapeEvent.getType() == EventType.MOUSE_RELEASED && startPosition != null) {
Point2D deltaMovementTotal = new Point2D.Double(target.getPosition().getX() - startPosition.getX(), target.getPosition().getY() - startPosition.getY());
addUndoAction(deltaMovementTotal, target);
startPosition = null;
startOffset = null;
} else if (mouseShapeEvent.getType() == EventType.MOUSE_IN) {
isHovered = true;
} else if (mouseShapeEvent.getType() == EventType.MOUSE_OUT) {
isHovered = false;
}
}
}
private void updatePosition(Drawing drawing) {
double size = ResizeControl.SIZE / drawing.getScale();
double halfSize = size / 2d;
double arcSize = ResizeControl.ARC_SIZE / drawing.getScale();
this.shape.setRoundRect(0, 0, size, size, arcSize, arcSize);
// Create transformation for where to position the controller in relative space
AffineTransform t = getSelectionManager().getTransform();
Rectangle2D bounds = getSelectionManager().getRelativeShape().getBounds2D();
t.translate(bounds.getX(), bounds.getY());
t.translate(bounds.getWidth() / 2, bounds.getHeight() / 2);
// Transform the position from relative space to real space
Point2D center = new Point2D.Double();
t.transform(new Point2D.Double(0, 0), center);
this.transform = new AffineTransform();
this.transform.translate(center.getX() - halfSize, center.getY() - halfSize);
}
private void addUndoAction(Point2D deltaMovement, Entity target) {
UndoManager undoManager = ControllerFactory.getUndoManager();
if (undoManager != null) {
List<Entity> entityList = new ArrayList<>();
if (target instanceof SelectionManager) {
entityList.addAll(((SelectionManager) target).getSelection());
} else {
entityList.add(target);
}
undoManager.addAction(new MoveAction(entityList, deltaMovement));
}
}
}