/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.isis.viewer.dnd.field;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.consent.Consent;
import org.apache.isis.core.progmodel.facets.value.booleans.BooleanValueFacet;
import org.apache.isis.viewer.dnd.drawing.Canvas;
import org.apache.isis.viewer.dnd.drawing.Color;
import org.apache.isis.viewer.dnd.drawing.ColorsAndFonts;
import org.apache.isis.viewer.dnd.drawing.Image;
import org.apache.isis.viewer.dnd.drawing.ImageFactory;
import org.apache.isis.viewer.dnd.drawing.Size;
import org.apache.isis.viewer.dnd.view.Axes;
import org.apache.isis.viewer.dnd.view.Click;
import org.apache.isis.viewer.dnd.view.Content;
import org.apache.isis.viewer.dnd.view.KeyboardAction;
import org.apache.isis.viewer.dnd.view.Toolkit;
import org.apache.isis.viewer.dnd.view.View;
import org.apache.isis.viewer.dnd.view.ViewConstants;
import org.apache.isis.viewer.dnd.view.ViewRequirement;
import org.apache.isis.viewer.dnd.view.ViewSpecification;
import org.apache.isis.viewer.dnd.view.base.AbstractFieldSpecification;
import org.apache.isis.viewer.dnd.view.content.TextParseableContent;
/*
* TODO this class does not set the underlying business object via its boolean adapter. Need
* to create an content type for flags.
*/
public class CheckboxField extends AbstractField {
private static final int size = Toolkit.getText(ColorsAndFonts.TEXT_NORMAL).getTextHeight();
public static class Specification extends AbstractFieldSpecification {
@Override
public boolean canDisplay(final ViewRequirement requirement) {
return requirement.isTextParseable() && requirement.isForValueType(BooleanValueFacet.class);
}
@Override
public View createView(final Content content, final Axes axes, final int sequence) {
return new CheckboxField(content, this);
}
@Override
public String getName() {
return "Checkbox";
}
}
public CheckboxField(final Content content, final ViewSpecification specification) {
super(content, specification);
}
@Override
public void draw(final Canvas canvas) {
Color color;
color = getIdentified() ? Toolkit.getColor(ColorsAndFonts.COLOR_SECONDARY2) : null;
color = hasFocus() ? Toolkit.getColor(ColorsAndFonts.COLOR_IDENTIFIED) : color;
final int top = ViewConstants.VPADDING;
final int left = ViewConstants.HPADDING;
if (color != null) {
canvas.drawRectangle(left - 2, top - 2, size + 4, size + 4, color);
}
color = Toolkit.getColor(ColorsAndFonts.COLOR_SECONDARY1);
canvas.drawRectangle(left, top, size, size, color);
if (isSet()) {
final Image image = ImageFactory.getInstance().loadImage("check-mark");
canvas.drawImage(image, 3, 3, size, size);
}
}
@Override
public void firstClick(final Click click) {
toggle();
}
@Override
public void secondClick(final Click click) {
// ignore
}
@Override
public void thirdClick(final Click click) {
// ignore
}
@Override
public void keyTyped(final KeyboardAction action) {
if (action.getKeyCode() == ' ') {
toggle();
} else {
super.keyTyped(action);
}
}
private void toggle() {
if (canChangeValue().isAllowed()) {
initiateSave(false);
}
}
@Override
public Consent canChangeValue() {
final TextParseableContent cont = (TextParseableContent) getContent();
return cont.isEditable();
}
@Override
public int getBaseline() {
return ViewConstants.VPADDING + Toolkit.getText(ColorsAndFonts.TEXT_NORMAL).getAscent();
}
@Override
public Size getRequiredSize(final Size availableSpace) {
return new Size(ViewConstants.HPADDING + size + ViewConstants.HPADDING, ViewConstants.VPADDING + size + ViewConstants.VPADDING);
}
private boolean isSet() {
final BooleanValueFacet booleanValueFacet = getContent().getSpecification().getFacet(BooleanValueFacet.class);
return booleanValueFacet.isSet(getContent().getAdapter());
}
@Override
protected void save() {
final BooleanValueFacet booleanValueFacet = getContent().getSpecification().getFacet(BooleanValueFacet.class);
final ObjectAdapter adapter = getContent().getAdapter();
if (adapter == null) {
((TextParseableContent) getContent()).parseTextEntry("true");
} else {
booleanValueFacet.toggle(adapter);
}
// return parsed != null ? PersistorUtil.createAdapter(parsed) : null;
markDamaged();
((TextParseableContent) getContent()).entryComplete();
getParent().invalidateContent();
}
}