/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.gui.appear;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import com.cburch.draw.canvas.Selection;
import com.cburch.draw.model.CanvasModel;
import com.cburch.draw.model.CanvasObject;
import com.cburch.draw.util.ZOrder;
import com.cburch.logisim.circuit.appear.AppearanceAnchor;
import com.cburch.logisim.data.Direction;
import com.cburch.logisim.data.Location;
import com.cburch.logisim.proj.Action;
import com.cburch.logisim.proj.Project;
import com.cburch.logisim.util.StringGetter;
class SelectionAction extends Action {
private StringGetter displayName;
private AppearanceCanvas canvas;
private CanvasModel canvasModel;
private Map<CanvasObject, Integer> toRemove;
private Collection<CanvasObject> toAdd;
private Collection<CanvasObject> oldSelection;
private Collection<CanvasObject> newSelection;
private Location anchorNewLocation;
private Direction anchorNewFacing;
private Location anchorOldLocation;
private Direction anchorOldFacing;
public SelectionAction(AppearanceCanvas canvas, StringGetter displayName,
Collection<CanvasObject> toRemove, Collection<CanvasObject> toAdd,
Collection<CanvasObject> newSelection, Location anchorLocation,
Direction anchorFacing) {
this.canvas = canvas;
this.canvasModel = canvas.getModel();
this.displayName = displayName;
this.toRemove = toRemove == null ? null : ZOrder.getZIndex(toRemove, canvasModel);
this.toAdd = toAdd;
this.oldSelection = new ArrayList<CanvasObject>(canvas.getSelection().getSelected());
this.newSelection = newSelection;
this.anchorNewLocation = anchorLocation;
this.anchorNewFacing = anchorFacing;
}
@Override
public String getName() {
return displayName.get();
}
@Override
public void doIt(Project proj) {
Selection sel = canvas.getSelection();
sel.clearSelected();
if (toRemove != null) canvasModel.removeObjects(toRemove.keySet());
int dest = AppearanceCanvas.getMaxIndex(canvasModel) + 1;
if (toAdd != null) canvasModel.addObjects(dest, toAdd);
AppearanceAnchor anchor = findAnchor(canvasModel);
if (anchor != null && anchorNewLocation != null) {
anchorOldLocation = anchor.getLocation();
anchor.translate(anchorNewLocation.getX() - anchorOldLocation.getX(),
anchorNewLocation.getY() - anchorOldLocation.getY());
}
if (anchor != null && anchorNewFacing != null) {
anchorOldFacing = anchor.getFacing();
anchor.setValue(AppearanceAnchor.FACING, anchorNewFacing);
}
sel.setSelected(newSelection, true);
canvas.repaint();
}
private AppearanceAnchor findAnchor(CanvasModel canvasModel) {
for (Object o : canvasModel.getObjectsFromTop()) {
if (o instanceof AppearanceAnchor) {
return (AppearanceAnchor) o;
}
}
return null;
}
@Override
public void undo(Project proj) {
AppearanceAnchor anchor = findAnchor(canvasModel);
if (anchor != null && anchorOldLocation != null) {
anchor.translate(anchorOldLocation.getX() - anchorNewLocation.getX(),
anchorOldLocation.getY() - anchorNewLocation.getY());
}
if (anchor != null && anchorOldFacing != null) {
anchor.setValue(AppearanceAnchor.FACING, anchorOldFacing);
}
Selection sel = canvas.getSelection();
sel.clearSelected();
if (toAdd != null) canvasModel.removeObjects(toAdd);
if (toRemove != null) canvasModel.addObjects(toRemove);
sel.setSelected(oldSelection, true);
canvas.repaint();
}
}